/builds/wireshark/wireshark/epan/prefs.c

Bug Summary

File:	builds/wireshark/wireshark/epan/prefs.c
Warning:	line 4887, column 21 Value of 'errno' was not checked and may be overwritten by function 'getc_unlocked'
Annotated Source Code

Press '?' to see keyboard shortcuts
Show analyzer invocation
clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name prefs.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-21/lib/clang/21 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /builds/wireshark/wireshark/epan -isystem /builds/wireshark/wireshark/build/epan -isystem /usr/include/mit-krb5 -isystem /usr/include/libxml2 -isystem /usr/include/lua5.4 -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_BUILD_DLL -D WS_DEBUG -D WS_DEBUG_UTF_8 -D epan_EXPORTS -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -I /builds/wireshark/wireshark/wiretap -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/llvm-21/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-nonliteral -std=gnu11 -ferror-limit 19 -fvisibility=hidden -fwrapv -fwrapv-pointer -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fexceptions -fcolor-diagnostics -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /builds/wireshark/wireshark/sbout/2026-03-11-100403-3621-1 -x c /builds/wireshark/wireshark/epan/prefs.c
1/* prefs.c
* Routines for handling preferences
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <[email protected]>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/

11#include "config.h"
12#define WS_LOG_DOMAIN"Epan" LOG_DOMAIN_EPAN"Epan"

14#include "ws_diag_control.h"

16#include <stdlib.h>
17#include <string.h>
18#include <errno(*__errno_location ()).h>
19#ifdef _WIN32
20#include <windows.h>
21#endif

23#include <glib.h>

25#include <stdio.h>
26#include <wsutil/filesystem.h>
27#include <epan/addr_resolv.h>
28#include <epan/oids.h>
29#include <epan/maxmind_db.h>
30#include <epan/packet.h>
31#include <epan/prefs.h>
32#include <epan/proto.h>
33#include <epan/strutil.h>
34#include <epan/column.h>
35#include <epan/decode_as.h>
36#include <ui/capture_opts.h>
37#include <wsutil/file_util.h>
38#include <wsutil/report_message.h>
39#include <wsutil/wslog.h>
40#include <wsutil/ws_assert.h>
41#include <wsutil/array.h>

43#include <epan/prefs-int.h>
44#include <epan/uat-int.h>

46#include "epan/filter_expressions.h"
47#include "epan/aggregation_fields.h"

49#include "epan/wmem_scopes.h"
50#include <epan/stats_tree.h>

52#define REG_HKCU_WIRESHARK_KEY"Software\\Wireshark" "Software\\Wireshark"

54/*
* Module alias.
*/
57typedef struct pref_module_alias {
  const char *name;           /**< name of module alias */
  module_t *module;           /**< module for which it's an alias */
60} module_alias_t;

62/* Internal functions */
63static void prefs_register_modules(void);
64static module_t *prefs_find_module_alias(const char *name);
65static prefs_set_pref_e set_pref(char*, const char*, void *, bool_Bool);
66static void free_col_info(GList *);
67static void prefs_set_global_defaults(wmem_allocator_t* pref_scope, const char** col_fmt, int num_cols);
68static bool_Bool prefs_is_column_visible(const char *cols_hidden, int col);
69static bool_Bool prefs_is_column_fmt_visible(const char *cols_hidden, fmt_data *cfmt);
70static int find_val_for_string(const char *needle, const enum_val_t *haystack, int default_value);

72#define PF_NAME"preferences"         "preferences"
73#define OLD_GPF_NAME"wireshark.conf"    "wireshark.conf" /* old name for global preferences file */

75static char *gpf_path;
76static char *cols_hidden_list;
77static char *cols_hidden_fmt_list;
78static bool_Bool gui_theme_is_dark;

80e_prefs prefs;

82static const enum_val_t gui_console_open_type[] = {
  {"NEVER", "NEVER", LOG_CONSOLE_OPEN_NEVER},
  {"AUTOMATIC", "AUTOMATIC", LOG_CONSOLE_OPEN_AUTO},
  {"ALWAYS", "ALWAYS", LOG_CONSOLE_OPEN_ALWAYS},
  {NULL((void*)0), NULL((void*)0), -1}
87};

89static const enum_val_t gui_version_placement_type[] = {
  {"WELCOME", "WELCOME", version_welcome_only},
  {"TITLE", "TITLE", version_title_only},
  {"BOTH", "BOTH", version_both},
  {"NEITHER", "NEITHER", version_neither},
  {NULL((void*)0), NULL((void*)0), -1}
95};

97static const enum_val_t gui_fileopen_style[] = {
  {"LAST_OPENED", "LAST_OPENED", FO_STYLE_LAST_OPENED0},
  {"SPECIFIED", "SPECIFIED", FO_STYLE_SPECIFIED1},
  {"CWD", "CWD", FO_STYLE_CWD2},
  {NULL((void*)0), NULL((void*)0), -1}
102};

104static const enum_val_t gui_toolbar_style[] = {
  {"ICONS", "ICONS", 0},
  {"TEXT", "TEXT", 1},
  {"BOTH", "BOTH", 2},
  {NULL((void*)0), NULL((void*)0), -1}
109};

111static const enum_val_t gui_layout_content[] = {
  {"NONE", "NONE", 0},
  {"PLIST", "PLIST", 1},
  {"PDETAILS", "PDETAILS", 2},
  {"PBYTES", "PBYTES", 3},
  {"PDIAGRAM", "PDIAGRAM", 4},
  {NULL((void*)0), NULL((void*)0), -1}
118};

120static const enum_val_t gui_packet_dialog_layout[] = {
  {"vertical", "Vertical (Stacked)", layout_vertical},
  {"horizontal", "Horizontal (Side-by-side)", layout_horizontal},
  {NULL((void*)0), NULL((void*)0), -1}
124};

126static const enum_val_t gui_update_channel[] = {
  {"DEVELOPMENT", "DEVELOPMENT", UPDATE_CHANNEL_DEVELOPMENT},
  {"STABLE", "STABLE", UPDATE_CHANNEL_STABLE},
  {NULL((void*)0), NULL((void*)0), -1}
130};

132static const enum_val_t gui_selection_style[] = {
  {"DEFAULT", "DEFAULT",   COLOR_STYLE_DEFAULT0},
  {"FLAT",    "FLAT",      COLOR_STYLE_FLAT1},
  {"GRADIENT", "GRADIENT", COLOR_STYLE_GRADIENT2},
  {NULL((void*)0), NULL((void*)0), -1}
137};

139static const enum_val_t gui_color_scheme[] = {
  {"system",  "System Default",   COLOR_SCHEME_DEFAULT0},
  {"light",   "Light Mode",       COLOR_SCHEME_LIGHT1},
  {"dark",    "Dark Mode",        COLOR_SCHEME_DARK2},
  {NULL((void*)0), NULL((void*)0), -1}
144};

146static const enum_val_t gui_packet_list_copy_format_options_for_keyboard_shortcut[] = {
  {"TEXT", "Text", COPY_FORMAT_TEXT},
  {"CSV",  "CSV",  COPY_FORMAT_CSV},
  {"YAML", "YAML", COPY_FORMAT_YAML},
  {"HTML", "HTML", COPY_FORMAT_HTML},
  {NULL((void*)0), NULL((void*)0), -1}
152};

154/* None : Historical behavior, no deinterlacing */
155#define CONV_DEINT_CHOICE_NONE0 0
156/* MI : MAC & Interface */
157#define CONV_DEINT_CHOICE_MI0x04 + 0x02 CONV_DEINT_KEY_MAC0x04 + CONV_DEINT_KEY_INTERFACE0x02
158/* VM : VLAN & MAC */
159#define CONV_DEINT_CHOICE_VM0x08 + 0x04 CONV_DEINT_KEY_VLAN0x08 + CONV_DEINT_KEY_MAC0x04
160/* VMI : VLAN & MAC & Interface */
161#define CONV_DEINT_CHOICE_VMI0x08 + 0x04 + 0x02 CONV_DEINT_KEY_VLAN0x08 + CONV_DEINT_KEY_MAC0x04 + CONV_DEINT_KEY_INTERFACE0x02

163static const enum_val_t conv_deint_options[] = {
  {"NONE", "NONE", CONV_DEINT_CHOICE_NONE0},
  {".MI", ".MI", CONV_DEINT_CHOICE_MI0x04 + 0x02 },
  {"VM.", "VM.", CONV_DEINT_CHOICE_VM0x08 + 0x04 },
  {"VMI", "VMI", CONV_DEINT_CHOICE_VMI0x08 + 0x04 + 0x02 },
  {NULL((void*)0), NULL((void*)0), -1}
169};

171static const enum_val_t abs_time_format_options[] = {
  {"NEVER", "Never", ABS_TIME_ASCII_NEVER},
  {"TREE", "Protocol tree only", ABS_TIME_ASCII_TREE},
  {"COLUMN", "Protocol tree and columns", ABS_TIME_ASCII_COLUMN},
  {"ALWAYS", "Always", ABS_TIME_ASCII_ALWAYS},
  {NULL((void*)0), NULL((void*)0), -1}
177};

179static int num_capture_cols = 7;
180static const char *capture_cols[7] = {
  "INTERFACE",
  "LINK",
  "PMODE",
  "SNAPLEN",
  "MONITOR",
  "BUFFER",
  "FILTER"
188};
189#define CAPTURE_COL_TYPE_DESCRIPTION"Possible values: INTERFACE, LINK, PMODE, SNAPLEN, MONITOR, BUFFER, FILTER\n" \
  "Possible values: INTERFACE, LINK, PMODE, SNAPLEN, MONITOR, BUFFER, FILTER\n"

192static const enum_val_t gui_packet_list_elide_mode[] = {
  {"LEFT", "LEFT", ELIDE_LEFT},
  {"RIGHT", "RIGHT", ELIDE_RIGHT},
  {"MIDDLE", "MIDDLE", ELIDE_MIDDLE},
  {"NONE", "NONE", ELIDE_NONE},
  {NULL((void*)0), NULL((void*)0), -1}
198};

200/** Struct to hold preference data */
201struct preference {
  const char *name;                /**< name of preference */
  const char *title;               /**< title to use in GUI */
  const char *description;         /**< human-readable description of preference */
  wmem_allocator_t* scope;         /**< memory scope allocator for this preference */
  int ordinal;                     /**< ordinal number of this preference */
  pref_type_e type;                /**< type of that preference */
  bool_Bool obsolete;                   /**< obsolete preference flag */
  unsigned int effect_flags;       /**< Flags of types effected by preference (PREF_EFFECT_DISSECTION, PREF_EFFECT_CAPTURE, etc).
                                        Flags must be non-zero to ensure saving to disk */
  union {                          /* The Qt preference code assumes that these will all be pointers (and unique) */
      unsigned *uint;
      bool_Bool *boolp;
      int *enump;
      int* intp;
      double* floatp;
      char **string;
      range_t **range;
      struct epan_uat* uat;
      color_t *colorp;
      GList** list;
  } varp;                          /**< pointer to variable storing the value */
  union {
      unsigned uint;
      bool_Bool boolval;
      int enumval;
      int intval;
      double floatval;
      char *string;
      range_t *range;
      color_t color;
      GList* list;
  } stashed_val;                     /**< original value, when editing from the GUI */
  union {
      unsigned uint;
      bool_Bool boolval;
      int enumval;
      int intval;
      double floatval;
      char *string;
      range_t *range;
      color_t color;
      GList* list;
  } default_val;                   /**< the default value of the preference */
  union {
    unsigned base;                 /**< input/output base, for PREF_UINT */
    uint32_t max_value;            /**< maximum value of a range */
    struct {
      const enum_val_t *enumvals;  /**< list of name & values */
      bool_Bool radio_buttons;          /**< true if it should be shown as
                                        radio buttons rather than as an
                                        option menu or combo box in
                                        the preferences tab */
    } enum_info;                   /**< for PREF_ENUM */
  } info;                          /**< display/text file information */
  struct pref_custom_cbs custom_cbs;   /**< for PREF_CUSTOM */
  const char *dissector_table;     /**< for PREF_DECODE_AS_RANGE */
  const char *dissector_desc;      /**< for PREF_DECODE_AS_RANGE */
259};

261const char* prefs_get_description(pref_t *pref)
262{
  return pref->description;
264}

266const char* prefs_get_title(pref_t *pref)
267{
  return pref->title;
269}

271int prefs_get_type(pref_t *pref)
272{
  return pref->type;
274}

276const char* prefs_get_name(pref_t *pref)
277{
  return pref->name;
279}

281uint32_t prefs_get_max_value(pref_t *pref)
282{
  return pref->info.max_value;
284}

286const char* prefs_get_dissector_table(pref_t *pref)
287{
  return pref->dissector_table;
289}

291static const char* prefs_get_dissector_description(pref_t *pref)
292{
  return pref->dissector_desc;
294}

296/*
* List of all modules with preference settings.
*/
299static wmem_tree_t *prefs_modules;

301/*
* List of all modules that should show up at the top level of the
* tree in the preference dialog box.
*/
305static wmem_tree_t *prefs_top_level_modules;

307/*
* List of aliases for modules.
*/
310static wmem_tree_t *prefs_module_aliases;

312/*
* Regex to match line terminators. Prefs are written and read to file line by
* line, so unescaped line terminators cause unexpected behavior.
*/
316static GRegex *prefs_regex;

318/** Sets up memory used by proto routines. Called at program startup */
319void
320prefs_init(const char** col_fmt, int num_cols)
321{
  memset(&prefs, 0, sizeof(prefs));
  prefs_modules = wmem_tree_new(wmem_epan_scope());
  prefs_top_level_modules = wmem_tree_new(wmem_epan_scope());
  prefs_module_aliases = wmem_tree_new(wmem_epan_scope());
  if (!prefs_regex)
      prefs_regex = g_regex_new("\\s*\\R\\s*", (GRegexCompileFlags)G_REGEX_OPTIMIZE,
          (GRegexMatchFlags)G_REGEX_MATCH_BSR_ANYCRLF, NULL((void*)0));

  prefs_set_global_defaults(wmem_epan_scope(), col_fmt, num_cols);
  prefs_register_modules();
332}

334const wmem_tree_t* prefs_get_module_tree(void)
335{
  return prefs_modules;
337}

339/*
* Free the strings for a string-like preference.
*/
342static void
343free_string_like_preference(pref_t *pref)
344{
  wmem_free(pref->scope, *pref->varp.string);
  *pref->varp.string = NULL((void*)0);
  wmem_free(pref->scope, pref->default_val.string);
  pref->default_val.string = NULL((void*)0);
349}

351void
352pref_free_individual(void *data, void *user_data _U___attribute__((unused)))
353{
  pref_t *pref = (pref_t *)data;

  switch (pref->type) {
  case PREF_BOOL:
  case PREF_ENUM:
  case PREF_UINT:
  case PREF_INT:
  case PREF_FLOAT:
  case PREF_STATIC_TEXT:
  case PREF_UAT:
  case PREF_COLOR:
      break;
  case PREF_STRING:
  case PREF_SAVE_FILENAME:
  case PREF_OPEN_FILENAME:
  case PREF_DIRNAME:
  case PREF_PASSWORD:
  case PREF_DISSECTOR:
      free_string_like_preference(pref);
      break;
  case PREF_RANGE:
  case PREF_DECODE_AS_RANGE:
      wmem_free(pref->scope, *pref->varp.range);
      *pref->varp.range = NULL((void*)0);
      wmem_free(pref->scope, pref->default_val.range);
      pref->default_val.range = NULL((void*)0);
      break;
  case PREF_CUSTOM:
      if (strcmp(pref->name, "columns") == 0)
        pref->stashed_val.boolval = true1;
      pref->custom_cbs.free_cb(pref);
      break;
  /* non-generic preferences */
  case PREF_PROTO_TCP_SNDAMB_ENUM:
      break;
  }

  wmem_free(pref->scope, pref);
392}

394static unsigned
395free_module_prefs(module_t *module, void *data _U___attribute__((unused)))
396{
  if (module->prefs) {
      g_list_foreach(module->prefs, pref_free_individual, NULL((void*)0));
      g_list_free(module->prefs);
  }
  module->prefs = NULL((void*)0);
  module->numprefs = 0;
  if (module->submodules) {
      prefs_module_list_foreach(module->submodules, free_module_prefs, NULL((void*)0), false0);
  }
  /*  We don't free the actual module: its submodules pointer points to
      a wmem_tree and the module itself is stored in a wmem_tree
   */

  return 0;
411}

413/** Frees memory used by proto routines. Called at program shutdown */
414void
415prefs_cleanup(void)
416{
  /*  This isn't strictly necessary since we're exiting anyway, but let's
   *  do what clean up we can.
   */
  prefs_module_list_foreach(prefs_modules, free_module_prefs, NULL((void*)0), false0);

  /* Clean the uats */
  uat_cleanup();

  /* Shut down mmdbresolve */
  maxmind_db_pref_cleanup();

  g_free(prefs.saved_at_version);
  g_free(gpf_path);
  gpf_path = NULL((void*)0);
  g_regex_unref(prefs_regex);
  prefs_regex = NULL((void*)0);
433}

435void prefs_set_gui_theme_is_dark(bool_Bool is_dark)
436{
  gui_theme_is_dark = is_dark;
438}

440static void
441prefs_deregister_module(wmem_tree_t* pref_tree, const char *name, const char *title, wmem_tree_t *all_modules)
442{
  /* Remove this module from the list of all modules */
  module_t *module = (module_t *)wmem_tree_remove_string(all_modules, name, WMEM_TREE_STRING_NOCASE0x00000001);

  if (!module)
      return;

  wmem_tree_remove_string(pref_tree, title, WMEM_TREE_STRING_NOCASE0x00000001);
  free_module_prefs(module, NULL((void*)0));
  wmem_free(module->scope, module);
452}

454static void
455prefs_update_existing_subtree(module_t* module, const char* name, const char* description,
                           const char* help, void (*apply_cb)(void), wmem_tree_t* master_pref_tree)
457{
  module->name = name;
  module->apply_cb = apply_cb;
  module->description = description;
  module->help = help;

  /* Registering it as a module (not just as a subtree) twice is an
   * error in the code for the same reason as below. */
  if (prefs_find_module(name) != NULL((void*)0)) {
      ws_error("Preference module \"%s\" is being registered twice", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 466
, __func__, "Preference module \"%s\" is being registered twice"
, name);
  }
  wmem_tree_insert_string(master_pref_tree, name, module,
      WMEM_TREE_STRING_NOCASE0x00000001);
470}

472static module_t*
473prefs_create_module(wmem_allocator_t* scope, module_t* parent, const char* name,
  const char* title, const char* description,
  const char* help, void (*apply_cb)(void),
  bool_Bool use_gui)
477{
  module_t* module = wmem_new(scope, module_t)((module_t*)wmem_alloc((scope), sizeof(module_t)));
  module->name = name;
  module->title = title;
  module->description = description;
  module->help = help;
  module->apply_cb = apply_cb;
  module->scope = scope;
  module->prefs = NULL((void*)0);    /* no preferences, to start */
  module->parent = parent;
  module->submodules = NULL((void*)0);    /* no submodules, to start */
  module->numprefs = 0;
  module->prefs_changed_flags = 0;
  module->obsolete = false0;
  module->use_gui = use_gui;
  /* A module's preferences affects dissection unless otherwise told */
  module->effect_flags = PREF_EFFECT_DISSECTION(1u << 0);

  return module;
496}

498/*
* Register a module that will have preferences.
* Specify the module under which to register it, the name used for the
* module in the preferences file, the title used in the tab for it
* in a preferences dialog box, and a routine to call back when the
* preferences are applied.
*/
505module_t*
506prefs_register_module(wmem_tree_t* pref_tree, wmem_tree_t* master_pref_tree, const char* name, const char* title,
  const char* description, const char* help, void (*apply_cb)(void),
  const bool_Bool use_gui)
509{
  module_t* module;

  /* this module may have been created as a subtree item previously */
  if ((module = (module_t*)wmem_tree_lookup_string(pref_tree, title, WMEM_TREE_STRING_NOCASE0x00000001))) {
      /* the module is currently a subtree */
      prefs_update_existing_subtree(module, name, description, help, apply_cb, master_pref_tree);
      return module;
  }

  module = prefs_create_module(wmem_tree_get_data_scope(master_pref_tree), NULL((void*)0), name, title, description, help, apply_cb, use_gui);

  /* Accept any letter case to conform with protocol names. ASN1 protocols
   * don't use lower case names, so we can't require lower case.
   */
  if (module_check_valid_name(name, false0) != '\0') {
      ws_error("Preference module \"%s\" contains invalid characters", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 525
, __func__, "Preference module \"%s\" contains invalid characters"
, name);
  }

  /*
   * Make sure there's not already a module with that
   * name.  Crash if there is, as that's an error in the
   * code, and the code has to be fixed not to register
   * more than one module with the same name.
   *
   * We search the list of all modules; the subtree stuff
   * doesn't require preferences in subtrees to have names
   * that reflect the subtree they're in (that would require
   * protocol preferences to have a bogus "protocol.", or
   * something such as that, to be added to all their names).
   */
  if (wmem_tree_lookup_string(master_pref_tree, name, WMEM_TREE_STRING_NOCASE0x00000001) != NULL((void*)0))
      ws_error("Preference module \"%s\" is being registered twice", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 541
, __func__, "Preference module \"%s\" is being registered twice"
, name);

  /*
   * Insert this module in the list of all modules.
   */
  wmem_tree_insert_string(master_pref_tree, name, module, WMEM_TREE_STRING_NOCASE0x00000001);

  /*
   * It goes at the top.
   */
  wmem_tree_insert_string(pref_tree, title, module, WMEM_TREE_STRING_NOCASE0x00000001);

  return module;
554}

556static module_t*
557prefs_register_submodule(module_t* parent, wmem_tree_t* master_pref_tree, const char* name, const char* title,
  const char* description, const char* help, void (*apply_cb)(void),
  const bool_Bool use_gui)
560{
  module_t* module;

  /* this module may have been created as a subtree item previously */
  if ((module = (module_t*)wmem_tree_lookup_string(parent->submodules, title, WMEM_TREE_STRING_NOCASE0x00000001))) {
      /* the module is currently a subtree */
      prefs_update_existing_subtree(module, name, description, help, apply_cb, master_pref_tree);
      return module;
  }

  module = prefs_create_module(wmem_tree_get_data_scope(master_pref_tree), parent, name, title, description, help, apply_cb, use_gui);

  /* Accept any letter case to conform with protocol names. ASN1 protocols
   * don't use lower case names, so we can't require lower case. */
  if (module_check_valid_name(name, false0) != '\0') {
      ws_error("Preference module \"%s\" contains invalid characters", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 575
, __func__, "Preference module \"%s\" contains invalid characters"
, name);
  }

  /*
   * Make sure there's not already a module with that
   * name.  Crash if there is, as that's an error in the
   * code, and the code has to be fixed not to register
   * more than one module with the same name.
   *
   * We search the list of all modules; the subtree stuff
   * doesn't require preferences in subtrees to have names
   * that reflect the subtree they're in (that would require
   * protocol preferences to have a bogus "protocol.", or
   * something such as that, to be added to all their names).
   */
  if (wmem_tree_lookup_string(master_pref_tree, name, WMEM_TREE_STRING_NOCASE0x00000001) != NULL((void*)0))
      ws_error("Preference module \"%s\" is being registered twice", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 591
, __func__, "Preference module \"%s\" is being registered twice"
, name);

  /*
   * Insert this module in the list of all modules.
   */
  wmem_tree_insert_string(master_pref_tree, name, module, WMEM_TREE_STRING_NOCASE0x00000001);

  /*
   * It goes into the list for this module.
   */

  if (parent->submodules == NULL((void*)0))
      parent->submodules = wmem_tree_new(parent->scope);

  wmem_tree_insert_string(parent->submodules, title, module, WMEM_TREE_STRING_NOCASE0x00000001);

  return module;
608}

610/*
* Register a subtree that will have modules under it.
* Specify the module under which to register it or NULL to register it
* at the top level and the title used in the tab for it in a preferences
* dialog box.
*/
616static module_t*
617prefs_register_subtree(module_t* parent, wmem_tree_t* master_pref_tree, const char* title, const char* description,
  void (*apply_cb)(void))
619{
  module_t* module;

  /* this module may have been created as a subtree item previously */
  if ((module = (module_t*)wmem_tree_lookup_string(parent->submodules, title, WMEM_TREE_STRING_NOCASE0x00000001))) {
      /* the module is currently a subtree */
      prefs_update_existing_subtree(module, NULL((void*)0), description, NULL((void*)0), apply_cb, master_pref_tree);
      return module;
  }

  module = prefs_create_module(wmem_tree_get_data_scope(master_pref_tree), parent, NULL((void*)0), title, description, NULL((void*)0), apply_cb, parent->use_gui);


  /*
   * It goes into the list for this module.
   */
  if (parent->submodules == NULL((void*)0))
      parent->submodules = wmem_tree_new(parent->scope);

  wmem_tree_insert_string(parent->submodules, title, module, WMEM_TREE_STRING_NOCASE0x00000001);

  return module;
641}

643void
644prefs_register_module_alias(const char *name, module_t *module)
645{
  module_alias_t *alias;

  /*
   * Accept any name that can occur in protocol names. We allow upper-case
   * letters, to handle the Diameter dissector having used "Diameter" rather
   * than "diameter" as its preference module name in the past.
   *
   * Crash if the name is invalid, as that's an error in the code, but the name
   * can be used on the command line, and shouldn't require quoting, etc.
   */
  if (module_check_valid_name(name, false0) != '\0') {
      ws_error("Preference module alias \"%s\" contains invalid characters", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 657
, __func__, "Preference module alias \"%s\" contains invalid characters"
, name);
  }

  /*
   * Make sure there's not already an alias with that
   * name.  Crash if there is, as that's an error in the
   * code, and the code has to be fixed not to register
   * more than one alias with the same name.
   *
   * We search the list of all aliases.
   */
  if (prefs_find_module_alias(name) != NULL((void*)0))
      ws_error("Preference module alias \"%s\" is being registered twice", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 669
, __func__, "Preference module alias \"%s\" is being registered twice"
, name);

  alias = wmem_new(wmem_tree_get_data_scope(prefs_module_aliases), module_alias_t)((module_alias_t*)wmem_alloc((wmem_tree_get_data_scope(prefs_module_aliases
)), sizeof(module_alias_t)));
  alias->name = name;
  alias->module = module;

  /*
   * Insert this module in the list of all modules.
   */
  wmem_tree_insert_string(prefs_module_aliases, name, alias, WMEM_TREE_STRING_NOCASE0x00000001);
679}

681/*
* Register that a protocol has preferences.
*/
684static module_t *protocols_module;

686module_t *
687prefs_register_protocol(int id, void (*apply_cb)(void))
688{
  protocol_t *protocol = find_protocol_by_id(id);
  if (protocol == NULL((void*)0))
      ws_error("Protocol preferences being registered with an invalid protocol ID")ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 691
, __func__, "Protocol preferences being registered with an invalid protocol ID"
);
  return prefs_register_submodule(protocols_module, prefs_modules,
                               proto_get_protocol_filter_name(id),
                               proto_get_protocol_short_name(protocol),
                               proto_get_protocol_name(id), NULL((void*)0), apply_cb, true1);
696}

698void
699prefs_deregister_protocol (int id)
700{
  protocol_t *protocol = find_protocol_by_id(id);
  if (protocol == NULL((void*)0))
      ws_error("Protocol preferences being de-registered with an invalid protocol ID")ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 703
, __func__, "Protocol preferences being de-registered with an invalid protocol ID"
);
  prefs_deregister_module (protocols_module->submodules,
                           proto_get_protocol_filter_name(id),
                           proto_get_protocol_short_name(protocol),
                           prefs_modules);
708}

710module_t *
711prefs_register_protocol_subtree(const char *subtree, int id, void (*apply_cb)(void))
712{
  protocol_t *protocol;
  module_t   *subtree_module;
  module_t   *new_module;
  char       *sep = NULL((void*)0), *ptr = NULL((void*)0), *orig = NULL((void*)0);

  subtree_module = protocols_module;

  if (subtree) {
      /* take a copy of the buffer, orig keeps a base pointer while ptr
       * walks through the string */
      orig = ptr = wmem_strdup(subtree_module->scope, subtree);

      while (ptr && *ptr) {

          if ((sep = strchr(ptr, '/')))
              *sep++ = '\0';

          if (!(new_module = (module_t*)wmem_tree_lookup_string(subtree_module->submodules, ptr, WMEM_TREE_STRING_NOCASE0x00000001))) {
              /*
               * There's no such module; create it, with the description
               * being the name (if it's later registered explicitly
               * with a description, that will override it).
               */
              ptr = wmem_strdup(wmem_tree_get_data_scope(prefs_modules), ptr);
              new_module = prefs_register_subtree(subtree_module, prefs_modules, ptr, ptr, NULL((void*)0));
          }

          subtree_module = new_module;
          ptr = sep;

      }

      wmem_free(subtree_module->scope, orig);
  }

  protocol = find_protocol_by_id(id);
  if (protocol == NULL((void*)0))
      ws_error("Protocol subtree being registered with an invalid protocol ID")ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 750
, __func__, "Protocol subtree being registered with an invalid protocol ID"
);
  return prefs_register_submodule(subtree_module, prefs_modules,
                               proto_get_protocol_filter_name(id),
                               proto_get_protocol_short_name(protocol),
                               proto_get_protocol_name(id), NULL((void*)0), apply_cb, true1);
755}


758/*
* Register that a protocol used to have preferences but no longer does,
* by creating an "obsolete" module for it.
*/
762module_t *
763prefs_register_protocol_obsolete(int id)
764{
  module_t *module;
  protocol_t *protocol = find_protocol_by_id(id);
  if (protocol == NULL((void*)0))
      ws_error("Protocol being registered with an invalid protocol ID")ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 768
, __func__, "Protocol being registered with an invalid protocol ID"
);
  module = prefs_register_submodule(protocols_module, prefs_modules,
                                 proto_get_protocol_filter_name(id),
                                 proto_get_protocol_short_name(protocol),
                                 proto_get_protocol_name(id), NULL((void*)0), NULL((void*)0), true1);
  module->obsolete = true1;
  return module;
775}

777/*
* Register that a statistical tap has preferences.
*
* "name" is a name for the tap to use on the command line with "-o"
* and in preference files.
*
* "title" is a short human-readable name for the tap.
*
* "description" is a longer human-readable description of the tap.
*/
787module_t *stats_module;

789module_t *
790prefs_register_stat(const char *name, const char *title,
                  const char *description, void (*apply_cb)(void))
792{
  return prefs_register_submodule(stats_module, prefs_modules, name, title, description, NULL((void*)0),
                               apply_cb, true1);
795}

797/*
* Register that a codec has preferences.
*
* "name" is a name for the codec to use on the command line with "-o"
* and in preference files.
*
* "title" is a short human-readable name for the codec.
*
* "description" is a longer human-readable description of the codec.
*/
807module_t *codecs_module;

809module_t *
810prefs_register_codec(const char *name, const char *title,
                   const char *description, void (*apply_cb)(void))
812{
  return prefs_register_submodule(codecs_module, prefs_modules, name, title, description, NULL((void*)0),
                               apply_cb, true1);
815}

817module_t *
818prefs_find_module(const char *name)
819{
  return (module_t *)wmem_tree_lookup_string(prefs_modules, name, WMEM_TREE_STRING_NOCASE0x00000001);
821}

823/*
* Call a callback function, with a specified argument, for each module
* in a list of modules.  If the list is NULL, searches the top-level
* list in the display tree of modules.  If any callback returns a
* non-zero value, we stop and return that value, otherwise we
* return 0.
*
* Normally "obsolete" modules are ignored; their sole purpose is to allow old
* preferences for dissectors that no longer have preferences to be
* silently ignored in preference files.  Does not ignore subtrees,
* as this can be used when walking the display tree of modules.
*/

836typedef struct {
  module_cb callback;
  void *user_data;
  unsigned ret;
  bool_Bool skip_obsolete;
841} call_foreach_t;

843static bool_Bool
844call_foreach_cb(const void *key _U___attribute__((unused)), void *value, void *data)
845{
  module_t *module = (module_t*)value;
  call_foreach_t *call_data = (call_foreach_t*)data;

  if (!call_data->skip_obsolete || !module->obsolete)
      call_data->ret = (*call_data->callback)(module, call_data->user_data);

  return (call_data->ret != 0);
853}

855unsigned
856prefs_module_list_foreach(const wmem_tree_t *module_list, module_cb callback,
                        void *user_data, bool_Bool skip_obsolete)
858{
  call_foreach_t call_data;

  call_data.callback = callback;
  call_data.user_data = user_data;
  call_data.ret = 0;
  call_data.skip_obsolete = skip_obsolete;
  wmem_tree_foreach(module_list, call_foreach_cb, &call_data);
  return call_data.ret;
867}

869/*
* Returns true if module has any submodules
*/
872bool_Bool
873prefs_module_has_submodules(module_t *module)
874{
  if (module->submodules == NULL((void*)0)) {
      return false0;
  }

  if (wmem_tree_is_empty(module->submodules)) {
      return false0;
  }

  return true1;
884}

886/*
* Call a callback function, with a specified argument, for each module
* in the list of all modules.  (This list does not include subtrees.)
*
* Ignores "obsolete" modules; their sole purpose is to allow old
* preferences for dissectors that no longer have preferences to be
* silently ignored in preference files.
*/
894unsigned
895prefs_modules_foreach(const wmem_tree_t* module, module_cb callback, void *user_data)
896{
  return prefs_module_list_foreach(module, callback, user_data, true1);
898}

900/*
* Call a callback function, with a specified argument, for each submodule
* of specified modules.  If the module is NULL, goes through the top-level
* list in the display tree of modules.
*
* Ignores "obsolete" modules; their sole purpose is to allow old
* preferences for dissectors that no longer have preferences to be
* silently ignored in preference files.  Does not ignore subtrees,
* as this can be used when walking the display tree of modules.
*/
910unsigned
911prefs_modules_foreach_submodules(const wmem_tree_t* module, module_cb callback,
                               void *user_data)
913{
  return prefs_module_list_foreach(module, callback, user_data, true1);
915}

917unsigned prefs_modules_for_all_modules(module_cb callback, void* user_data)
918{
  return prefs_module_list_foreach(prefs_top_level_modules, callback, user_data, true1);
920}

922static bool_Bool
923call_apply_cb(const void *key _U___attribute__((unused)), void *value, void *data _U___attribute__((unused)))
924{
  module_t *module = (module_t *)value;

  if (module->obsolete)
      return false0;
  if (module->prefs_changed_flags) {
      if (module->apply_cb != NULL((void*)0))
          (*module->apply_cb)();
      module->prefs_changed_flags = 0;
  }
  if (module->submodules)
      wmem_tree_foreach(module->submodules, call_apply_cb, NULL((void*)0));
  return false0;
937}

939/*
* Call the "apply" callback function for each module if any of its
* preferences have changed, and then clear the flag saying its
* preferences have changed, as the module has been notified of that
* fact.
*/
945void
946prefs_apply_all(void)
947{
  wmem_tree_foreach(prefs_modules, call_apply_cb, NULL((void*)0));
949}

951/*
* Call the "apply" callback function for a specific module if any of
* its preferences have changed, and then clear the flag saying its
* preferences have changed, as the module has been notified of that
* fact.
*/
957void
958prefs_apply(module_t *module)
959{
  if (module && module->prefs_changed_flags)
      call_apply_cb(NULL((void*)0), module, NULL((void*)0));
962}

964static module_t *
965prefs_find_module_alias(const char *name)
966{
  module_alias_t *alias;

  alias = (module_alias_t *)wmem_tree_lookup_string(prefs_module_aliases, name, WMEM_TREE_STRING_NOCASE0x00000001);
  if (alias == NULL((void*)0))
      return NULL((void*)0);
  return alias->module;
973}

975/*
* Register a preference in a module's list of preferences.
* If it has a title, give it an ordinal number; otherwise, it's a
* preference that won't show up in the UI, so it shouldn't get an
* ordinal number (the ordinal should be the ordinal in the set of
* *visible* preferences).
*/
982static pref_t *
983register_preference(module_t *module, const char *name, const char *title,
                  const char *description, pref_type_e type, bool_Bool obsolete)
985{
  pref_t *preference;
  const char *p;
  const char *name_prefix = (module->name != NULL((void*)0)) ? module->name : module->parent->name;

  preference = wmem_new(module->scope, pref_t)((pref_t*)wmem_alloc((module->scope), sizeof(pref_t)));
  preference->name = name;
  preference->title = title;
  preference->scope = module->scope;
  preference->description = description;
  preference->type = type;
  preference->obsolete = obsolete;
  /* Default to module's preference effects */
  preference->effect_flags = module->effect_flags;

  if (title != NULL((void*)0))
      preference->ordinal = module->numprefs;
  else
      preference->ordinal = -1;    /* no ordinal for you */

  /*
   * Make sure that only lower-case ASCII letters, numbers,
   * underscores, and dots appear in the preference name.
   *
   * Crash if there is, as that's an error in the code;
   * you can make the title and description nice strings
   * with capitalization, white space, punctuation, etc.,
   * but the name can be used on the command line,
   * and shouldn't require quoting, shifting, etc.
   */
  for (p = name; *p != '\0'; p++)
      if (!(g_ascii_islower(*p)((g_ascii_table[(guchar) (*p)] & G_ASCII_LOWER) != 0) || g_ascii_isdigit(*p)((g_ascii_table[(guchar) (*p)] & G_ASCII_DIGIT) != 0) || *p == '_' || *p == '.'))
          ws_error("Preference \"%s.%s\" contains invalid characters", module->name, name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1017
, __func__, "Preference \"%s.%s\" contains invalid characters"
, module->name, name);

  /*
   * Make sure there's not already a preference with that
   * name.  Crash if there is, as that's an error in the
   * code, and the code has to be fixed not to register
   * more than one preference with the same name.
   */
  if (prefs_find_preference(module, name) != NULL((void*)0))
      ws_error("Preference %s has already been registered", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1026
, __func__, "Preference %s has already been registered", name
);

  if ((!preference->obsolete) &&
      /* Don't compare if it's a subtree */
      (module->name != NULL((void*)0))) {
      /*
       * Make sure the preference name doesn't begin with the
       * module name, as that's redundant and Just Silly.
       */
      if (!((strncmp(name, module->name, strlen(module->name)) != 0) ||
          (((name[strlen(module->name)]) != '.') && ((name[strlen(module->name)]) != '_'))))
          ws_error("Preference %s begins with the module name", name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1037
, __func__, "Preference %s begins with the module name", name
);
  }

  /* The title shows up in the preferences dialog. Make sure it's UI-friendly. */
  if (preference->title) {
      const char *cur_char;
      if (preference->type != PREF_STATIC_TEXT && g_utf8_strlen(preference->title, -1) > 80) { // Arbitrary.
          ws_error("Title for preference %s.%s is too long: %s", name_prefix, preference->name, preference->title)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1044
, __func__, "Title for preference %s.%s is too long: %s", name_prefix
, preference->name, preference->title);
      }

      if (!g_utf8_validate(preference->title, -1, NULL((void*)0))) {
          ws_error("Title for preference %s.%s isn't valid UTF-8.", name_prefix, preference->name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1048
, __func__, "Title for preference %s.%s isn't valid UTF-8.", name_prefix
, preference->name);
      }

      for (cur_char = preference->title; *cur_char; cur_char = g_utf8_next_char(cur_char)(char *)((cur_char) + g_utf8_skip[*(const guchar *)(cur_char)
])) {
          if (!g_unichar_isprint(g_utf8_get_char(cur_char))) {
              ws_error("Title for preference %s.%s isn't printable UTF-8.", name_prefix, preference->name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1053
, __func__, "Title for preference %s.%s isn't printable UTF-8."
, name_prefix, preference->name);
          }
      }
  }

  if (preference->description) {
      if (!g_utf8_validate(preference->description, -1, NULL((void*)0))) {
          ws_error("Description for preference %s.%s isn't valid UTF-8.", name_prefix, preference->name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1060
, __func__, "Description for preference %s.%s isn't valid UTF-8."
, name_prefix, preference->name);
      }
  }

  /*
   * We passed all of our checks. Add the preference.
   */
  module->prefs = g_list_append(module->prefs, preference);
  if (title != NULL((void*)0))
      module->numprefs++;

  return preference;
1072}

1074/*
* Find a preference in a module's list of preferences, given the module
* and the preference's name.
*/
1078typedef struct {
  GList *list_entry;
  const char *name;
  module_t *submodule;
1082} find_pref_arg_t;

1084static int
1085preference_match(const void *a, const void *b)
1086{
  const pref_t *pref = (const pref_t *)a;
  const char *name = (const char *)b;

  return strcmp(name, pref->name);
1091}

1093static bool_Bool
1094module_find_pref_cb(const void *key _U___attribute__((unused)), void *value, void *data)
1095{
  find_pref_arg_t* arg = (find_pref_arg_t*)data;
  GList *list_entry;
  module_t *module = (module_t *)value;

  if (module == NULL((void*)0))
      return false0;

  list_entry = g_list_find_custom(module->prefs, arg->name,
      preference_match);

  if (list_entry == NULL((void*)0))
      return false0;

  arg->list_entry = list_entry;
  arg->submodule = module;
  return true1;
1112}

1114/* Tries to find a preference, setting containing_module to the (sub)module
* holding this preference. */
1116static pref_t *
1117prefs_find_preference_with_submodule(module_t *module, const char *name,
      module_t **containing_module)
1119{
  find_pref_arg_t arg;
  GList *list_entry;

  if (module == NULL((void*)0))
      return NULL((void*)0);    /* invalid parameters */

  list_entry = g_list_find_custom(module->prefs, name,
      preference_match);
  arg.submodule = NULL((void*)0);

  if (list_entry == NULL((void*)0))
  {
      arg.list_entry = NULL((void*)0);
      if (module->submodules != NULL((void*)0))
      {
          arg.name = name;
          wmem_tree_foreach(module->submodules, module_find_pref_cb, &arg);
      }

      list_entry = arg.list_entry;
  }

  if (list_entry == NULL((void*)0))
      return NULL((void*)0);    /* no such preference */

  if (containing_module)
      *containing_module = arg.submodule ? arg.submodule : module;

  return (pref_t *) list_entry->data;
1149}

1151pref_t *
1152prefs_find_preference(module_t *module, const char *name)
1153{
  return prefs_find_preference_with_submodule(module, name, NULL((void*)0));
1155}

1157/*
* Returns true if the given protocol has registered preferences
*/
1160bool_Bool
1161prefs_is_registered_protocol(const char *name)
1162{
  module_t *m = prefs_find_module(name);

  return (m != NULL((void*)0) && !m->obsolete);
1166}

1168/*
* Returns the module title of a registered protocol
*/
1171const char *
1172prefs_get_title_by_name(const char *name)
1173{
  module_t *m = prefs_find_module(name);

  return (m != NULL((void*)0) && !m->obsolete) ? m->title : NULL((void*)0);
1177}

1179/*
* Register a preference with an unsigned integral value.
*/
1182void
1183prefs_register_uint_preference(module_t *module, const char *name,
                             const char *title, const char *description,
                             unsigned base, unsigned *var)
1186{
  pref_t *preference;

  preference = register_preference(module, name, title, description,
                                   PREF_UINT, false0);
  preference->varp.uint = var;
  preference->default_val.uint = *var;
  ws_assert(base > 0 && base != 1 && base < 37)do { if ((1) && !(base > 0 && base != 1 &&
 base < 37)) ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c"
, 1193, __func__, "assertion failed: %s", "base > 0 && base != 1 && base < 37"
); } while (0);
  preference->info.base = base;
1195}

1197/*
* XXX Add a prefs_register_{uint16|port}_preference which sets max_value?
*/


1202/*
* Register a preference with an integer value.
*/
1205void
1206prefs_register_int_preference(module_t* module, const char* name,
  const char* title, const char* description, int* var)
1208{
  pref_t* preference;

  preference = register_preference(module, name, title, description,
      PREF_INT, false0);
  preference->varp.intp = var;
  preference->default_val.intval = *var;
1215}

1217/*
* Register a preference with a float (doube) value.
*/
1220void prefs_register_float_preference(module_t* module, const char* name,
  const char* title, const char* description, unsigned num_decimal, double* var)
1222{
  pref_t* preference;

  preference = register_preference(module, name, title, description,
      PREF_FLOAT, false0);
  preference->varp.floatp = var;
  preference->default_val.floatval = *var;
  ws_assert(num_decimal <= 10)do { if ((1) && !(num_decimal <= 10)) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1229, __func__, "assertion failed: %s"
, "num_decimal <= 10"); } while (0);
  preference->info.base = num_decimal;
1231}

1233/*
* Register a "custom" preference with a unsigned integral value.
* XXX - This should be temporary until we can find a better way
* to do "custom" preferences
*/
1238static void
1239prefs_register_uint_custom_preference(module_t *module, const char *name,
                                    const char *title, const char *description,
                                    struct pref_custom_cbs* custom_cbs, unsigned *var)
1242{
  pref_t *preference;

  preference = register_preference(module, name, title, description,
                                   PREF_CUSTOM, false0);

  preference->custom_cbs = *custom_cbs;
  preference->varp.uint = var;
  preference->default_val.uint = *var;
1251}

1253/*
* Register a preference with an Boolean value.
*/
1256void
1257prefs_register_bool_preference(module_t *module, const char *name,
                             const char *title, const char *description,
                             bool_Bool *var)
1260{
  pref_t *preference;

  preference = register_preference(module, name, title, description,
                                   PREF_BOOL, false0);
  preference->varp.boolp = var;
  preference->default_val.boolval = *var;
1267}

1269unsigned int prefs_set_bool_value(pref_t *pref, bool_Bool value, pref_source_t source)
1270{
  unsigned int changed = 0;

  switch (source)
  {
  case pref_default:
      if (pref->default_val.boolval != value) {
          pref->default_val.boolval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_stashed:
      if (pref->stashed_val.boolval != value) {
          pref->stashed_val.boolval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_current:
      if (*pref->varp.boolp != value) {
          *pref->varp.boolp = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1294
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
1299}

1301void prefs_invert_bool_value(pref_t *pref, pref_source_t source)
1302{
  switch (source)
  {
  case pref_default:
      pref->default_val.boolval = !pref->default_val.boolval;
      break;
  case pref_stashed:
      pref->stashed_val.boolval = !pref->stashed_val.boolval;
      break;
  case pref_current:
      *pref->varp.boolp = !(*pref->varp.boolp);
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1315
, __func__, "assertion \"not reached\" failed");
      break;
  }
1318}

1320bool_Bool prefs_get_bool_value(pref_t *pref, pref_source_t source)
1321{
  switch (source)
  {
  case pref_default:
      return pref->default_val.boolval;
  case pref_stashed:
      return pref->stashed_val.boolval;
  case pref_current:
      return *pref->varp.boolp;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1331
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return false0;
1336}

1338/*
* Register a preference with an enumerated value.
*/
1341/*
* XXX Should we get rid of the radio_buttons parameter and make that
* behavior automatic depending on the number of items?
*/
1345void
1346prefs_register_enum_preference(module_t *module, const char *name,
                             const char *title, const char *description,
                             int *var, const enum_val_t *enumvals,
                             bool_Bool radio_buttons)
1350{
  pref_t *preference;

  /* Validate that the "name one would use on the command line for the value"
   * doesn't require quoting, etc. It's all treated case-insensitively so we
   * don't care about upper vs lower case.
   */
  for (size_t i = 0; enumvals[i].name != NULL((void*)0); i++) {
      for (const char *p = enumvals[i].name; *p != '\0'; p++)
          if (!(g_ascii_isalnum(*p)((g_ascii_table[(guchar) (*p)] & G_ASCII_ALNUM) != 0) || *p == '_' || *p == '.' || *p == '-'))
              ws_error("Preference \"%s.%s\" enum value name \"%s\" contains invalid characters",ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1361
, __func__, "Preference \"%s.%s\" enum value name \"%s\" contains invalid characters"
, module->name, name, enumvals[i].name)
                  module->name, name, enumvals[i].name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1361
, __func__, "Preference \"%s.%s\" enum value name \"%s\" contains invalid characters"
, module->name, name, enumvals[i].name);
  }


  preference = register_preference(module, name, title, description,
                                   PREF_ENUM, false0);
  preference->varp.enump = var;
  preference->default_val.enumval = *var;
  preference->info.enum_info.enumvals = enumvals;
  preference->info.enum_info.radio_buttons = radio_buttons;
1371}

1373unsigned int prefs_set_enum_value(pref_t *pref, int value, pref_source_t source)
1374{
  unsigned int changed = 0;

  switch (source)
  {
  case pref_default:
      if (pref->default_val.enumval != value) {
          pref->default_val.enumval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_stashed:
      if (pref->stashed_val.enumval != value) {
          pref->stashed_val.enumval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_current:
      if (*pref->varp.enump != value) {
          *pref->varp.enump = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1398
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
1403}

1405unsigned int prefs_set_enum_string_value(pref_t *pref, const char *value, pref_source_t source)
1406{
  int enum_val = find_val_for_string(value, pref->info.enum_info.enumvals, *pref->varp.enump);

  return prefs_set_enum_value(pref, enum_val, source);
1410}

1412int prefs_get_enum_value(pref_t *pref, pref_source_t source)
1413{
  switch (source)
  {
  case pref_default:
      return pref->default_val.enumval;
  case pref_stashed:
      return pref->stashed_val.enumval;
  case pref_current:
      return *pref->varp.enump;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1423
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return 0;
1428}

1430const enum_val_t* prefs_get_enumvals(pref_t *pref)
1431{
  return pref->info.enum_info.enumvals;
1433}

1435bool_Bool prefs_get_enum_radiobuttons(pref_t *pref)
1436{
  return pref->info.enum_info.radio_buttons;
1438}

1440/*
* For use by UI code that sets preferences.
*/
1443unsigned int
1444prefs_set_custom_value(pref_t *pref, const char *value, pref_source_t source _U___attribute__((unused)))
1445{
  /* XXX - support pref source for custom preferences */
  unsigned int changed = 0;
  pref->custom_cbs.set_cb(pref, value, &changed);
  return changed;
1450}

1452static void
1453register_string_like_preference(module_t *module, const char *name,
                              const char *title, const char *description,
                              char **var, pref_type_e type,
                              struct pref_custom_cbs* custom_cbs,
                              bool_Bool free_tmp)
1458{
  pref_t *pref;
  char *tmp;

  pref = register_preference(module, name, title, description, type, false0);

  /*
   * String preference values should be non-null (as you can't
   * keep them null after using the preferences GUI, you can at best
   * have them be null strings) and freeable (as we free them
   * if we change them).
   *
   * If the value is a null pointer, make it a copy of a null
   * string, otherwise make it a copy of the value.
   */
  tmp = *var;
  if (*var == NULL((void*)0)) {
      *var = wmem_strdup(pref->scope, "");
  } else {
      *var = wmem_strdup(pref->scope, *var);
  }
  if (free_tmp) {
      wmem_free(pref->scope, tmp);
  }
  pref->varp.string = var;
  pref->default_val.string = wmem_strdup(pref->scope, *var);
  pref->stashed_val.string = NULL((void*)0);
  if (type == PREF_CUSTOM) {
      ws_assert(custom_cbs)do { if ((1) && !(custom_cbs)) ws_log_fatal_full("Epan"
, LOG_LEVEL_ERROR, "epan/prefs.c", 1486, __func__, "assertion failed: %s"
, "custom_cbs"); } while (0);
      pref->custom_cbs = *custom_cbs;
  }
1489}

1491/*
* Assign to a string preference.
*/
1494static void
1495pref_set_string_like_pref_value(pref_t *pref, const char *value)
1496{
  wmem_free(pref->scope, *pref->varp.string);
  *pref->varp.string = wmem_strdup(pref->scope, value);
1499}

1501/*
* For use by UI code that sets preferences.
*/
1504unsigned int
1505prefs_set_string_value(pref_t *pref, const char* value, pref_source_t source)
1506{
  unsigned int changed = 0;

  switch (source)
  {
  case pref_default:
      if (*pref->default_val.string) {
          if (strcmp(pref->default_val.string, value) != 0) {
              changed = prefs_get_effect_flags(pref);
              wmem_free(pref->scope, pref->default_val.string);
              pref->default_val.string = wmem_strdup(pref->scope, value);
          }
      } else if (value) {
          pref->default_val.string = wmem_strdup(pref->scope, value);
      }
      break;
  case pref_stashed:
      if (pref->stashed_val.string) {
          if (strcmp(pref->stashed_val.string, value) != 0) {
              changed = prefs_get_effect_flags(pref);
              wmem_free(pref->scope, pref->stashed_val.string);
              pref->stashed_val.string = wmem_strdup(pref->scope, value);
          }
      } else if (value) {
          pref->stashed_val.string = wmem_strdup(pref->scope, value);
      }
      break;
  case pref_current:
      if (*pref->varp.string) {
          if (strcmp(*pref->varp.string, value) != 0) {
              changed = prefs_get_effect_flags(pref);
              pref_set_string_like_pref_value(pref, value);
          }
      } else if (value) {
          pref_set_string_like_pref_value(pref, value);
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1544
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
1549}

1551const char *prefs_get_string_value(pref_t *pref, pref_source_t source)
1552{
  switch (source)
  {
  case pref_default:
      return pref->default_val.string;
  case pref_stashed:
      return pref->stashed_val.string;
  case pref_current:
      return *pref->varp.string;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1562
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return NULL((void*)0);
1567}

1569/*
* Reset the value of a string-like preference.
*/
1572static void
1573reset_string_like_preference(pref_t *pref)
1574{
  wmem_free(pref->scope, *pref->varp.string);
  *pref->varp.string = wmem_strdup(pref->scope, pref->default_val.string);
1577}

1579/*
* Register a preference with a character-string value.
*/
1582void
1583prefs_register_string_preference(module_t *module, const char *name,
                               const char *title, const char *description,
                               const char **var)
1586{
1587DIAG_OFF(cast-qual)clang diagnostic push
 clang diagnostic ignored "-Wcast-qual"

  register_string_like_preference(module, name, title, description,
                                  (char **)var, PREF_STRING, NULL((void*)0), false0);
1590DIAG_ON(cast-qual)clang diagnostic pop
1591}

1593/*
* Register a preference with a file name (string) value.
*/
1596void
1597prefs_register_filename_preference(module_t *module, const char *name,
                                 const char *title, const char *description,
                                 const char **var, bool_Bool for_writing)
1600{
1601DIAG_OFF(cast-qual)clang diagnostic push
 clang diagnostic ignored "-Wcast-qual"

  register_string_like_preference(module, name, title, description, (char **)var,
                                  for_writing ? PREF_SAVE_FILENAME : PREF_OPEN_FILENAME, NULL((void*)0), false0);
1604DIAG_ON(cast-qual)clang diagnostic pop
1605}

1607/*
* Register a preference with a directory name (string) value.
*/
1610void
1611prefs_register_directory_preference(module_t *module, const char *name,
                                 const char *title, const char *description,
                                 const char **var)
1614{
1615DIAG_OFF(cast-qual)clang diagnostic push
 clang diagnostic ignored "-Wcast-qual"

  register_string_like_preference(module, name, title, description,
                                  (char **)var, PREF_DIRNAME, NULL((void*)0), false0);
1618DIAG_ON(cast-qual)clang diagnostic pop
1619}

1621/* Refactoring to handle both PREF_RANGE and PREF_DECODE_AS_RANGE */
1622static pref_t*
1623prefs_register_range_preference_common(module_t *module, const char *name,
                              const char *title, const char *description,
                              range_t **var, uint32_t max_value, pref_type_e type)
1626{
  pref_t *preference;

  preference = register_preference(module, name, title, description, type, false0);
  preference->info.max_value = max_value;

  /*
   * Range preference values should be non-null (as you can't
   * keep them null after using the preferences GUI, you can at best
   * have them be empty ranges) and freeable (as we free them
   * if we change them).
   *
   * If the value is a null pointer, make it an empty range.
   */
  if (*var == NULL((void*)0))
      *var = range_empty(preference->scope);
  preference->varp.range = var;
  preference->default_val.range = range_copy(preference->scope, *var);
  preference->stashed_val.range = NULL((void*)0);

  return preference;
1647}

1649/*
* Register a preference with a ranged value.
*/
1652void
1653prefs_register_range_preference(module_t *module, const char *name,
                              const char *title, const char *description,
                              range_t **var, uint32_t max_value)
1656{
  prefs_register_range_preference_common(module, name, title,
              description, var, max_value, PREF_RANGE);
1659}

1661bool_Bool
1662prefs_set_range_value_work(pref_t *pref, const char *value,
                         bool_Bool return_range_errors, unsigned int *changed_flags)
1664{
  range_t *newrange;

  if (range_convert_str_work(pref->scope, &newrange, value, pref->info.max_value,
                             return_range_errors) != CVT_NO_ERROR) {
      return false0;        /* number was bad */
  }

  if (!ranges_are_equal(*pref->varp.range, newrange)) {
      *changed_flags |= prefs_get_effect_flags(pref);
      wmem_free(pref->scope, *pref->varp.range);
      *pref->varp.range = newrange;
  } else {
      wmem_free(pref->scope, newrange);
  }
  return true1;
1680}

1682/*
* For use by UI code that sets preferences.
*/
1685unsigned int
1686prefs_set_stashed_range_value(pref_t *pref, const char *value)
1687{
  range_t *newrange;

  if (range_convert_str_work(pref->scope, &newrange, value, pref->info.max_value,
                             true1) != CVT_NO_ERROR) {
      return 0;        /* number was bad */
  }

  if (!ranges_are_equal(pref->stashed_val.range, newrange)) {
      wmem_free(pref->scope, pref->stashed_val.range);
      pref->stashed_val.range = newrange;
  } else {
      wmem_free(pref->scope, newrange);
  }
  return prefs_get_effect_flags(pref);

1703}

1705bool_Bool prefs_add_list_value(pref_t *pref, void* value, pref_source_t source)
1706{
  switch (source)
  {
  case pref_default:
      pref->default_val.list = g_list_prepend(pref->default_val.list, value);
      break;
  case pref_stashed:
      pref->stashed_val.list = g_list_prepend(pref->stashed_val.list, value);
      break;
  case pref_current:
      *pref->varp.list = g_list_prepend(*pref->varp.list, value);
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1719
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return true1;
1724}

1726GList* prefs_get_list_value(pref_t *pref, pref_source_t source)
1727{
  switch (source)
  {
  case pref_default:
      return pref->default_val.list;
  case pref_stashed:
      return pref->stashed_val.list;
  case pref_current:
      return *pref->varp.list;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1737
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return NULL((void*)0);
1742}

1744bool_Bool prefs_set_range_value(pref_t *pref, range_t *value, pref_source_t source)
1745{
  bool_Bool changed = false0;

  switch (source)
  {
  case pref_default:
      if (!ranges_are_equal(pref->default_val.range, value)) {
          wmem_free(pref->scope, pref->default_val.range);
          pref->default_val.range = range_copy(pref->scope, value);
          changed = true1;
      }
      break;
  case pref_stashed:
      if (!ranges_are_equal(pref->stashed_val.range, value)) {
          wmem_free(pref->scope, pref->stashed_val.range);
          pref->stashed_val.range = range_copy(pref->scope, value);
          changed = true1;
      }
      break;
  case pref_current:
      if (!ranges_are_equal(*pref->varp.range, value)) {
          wmem_free(pref->scope, *pref->varp.range);
          *pref->varp.range = range_copy(pref->scope, value);
          changed = true1;
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1772
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
1777}

1779range_t* prefs_get_range_value_real(pref_t *pref, pref_source_t source)
1780{
  switch (source)
  {
  case pref_default:
      return pref->default_val.range;
  case pref_stashed:
      return pref->stashed_val.range;
  case pref_current:
      return *pref->varp.range;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1790
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return NULL((void*)0);
1795}

1797range_t* prefs_get_range_value(const char *module_name, const char* pref_name)
1798{
  pref_t *pref = prefs_find_preference(prefs_find_module(module_name), pref_name);
  if (pref == NULL((void*)0)) {
      return NULL((void*)0);
  }
  return prefs_get_range_value_real(pref, pref_current);
1804}

1806void
1807prefs_range_add_value(pref_t *pref, uint32_t val)
1808{
  range_add_value(pref->scope, pref->varp.range, val);
1810}

1812void
1813prefs_range_remove_value(pref_t *pref, uint32_t val)
1814{
  range_remove_value(pref->scope, pref->varp.range, val);
1816}

1818/*
* Register a static text 'preference'.  It can be used to add explanatory
* text inline with other preferences in the GUI.
* Note: Static preferences are not saved to the preferences file.
*/
1823void
1824prefs_register_static_text_preference(module_t *module, const char *name,
                                    const char *title,
                                    const char *description)
1827{
  register_preference(module, name, title, description, PREF_STATIC_TEXT, false0);
1829}

1831/*
* Register a uat 'preference'. It adds a button that opens the uat's window in the
* preferences tab of the module.
*/
1835extern void
1836prefs_register_uat_preference(module_t *module, const char *name,
                            const char *title, const char *description,
                            uat_t* uat)
1839{
  pref_t* preference = register_preference(module, name, title, description, PREF_UAT, false0);

  preference->varp.uat = uat;
1843}

1845struct epan_uat* prefs_get_uat_value(pref_t *pref)
1846{
  return pref->varp.uat;
1848}

1850/*
* Register a color preference.
*/
1853void
1854prefs_register_color_preference(module_t *module, const char *name,
                              const char *title, const char *description,
                              color_t *color)
1857{
  pref_t* preference = register_preference(module, name, title, description, PREF_COLOR, false0);

  preference->varp.colorp = color;
  preference->default_val.color = *color;
1862}

1864bool_Bool prefs_set_color_value(pref_t *pref, color_t value, pref_source_t source)
1865{
  bool_Bool changed = false0;

  switch (source)
  {
  case pref_default:
      if ((pref->default_val.color.red != value.red) ||
          (pref->default_val.color.green != value.green) ||
          (pref->default_val.color.blue != value.blue)) {
          changed = true1;
          pref->default_val.color = value;
      }
      break;
  case pref_stashed:
      if ((pref->stashed_val.color.red != value.red) ||
          (pref->stashed_val.color.green != value.green) ||
          (pref->stashed_val.color.blue != value.blue)) {
          changed = true1;
          pref->stashed_val.color = value;
      }
      break;
  case pref_current:
      if ((pref->varp.colorp->red != value.red) ||
          (pref->varp.colorp->green != value.green) ||
          (pref->varp.colorp->blue != value.blue)) {
          changed = true1;
          *pref->varp.colorp = value;
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1895
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
1900}

1902color_t* prefs_get_color_value(pref_t *pref, pref_source_t source)
1903{
  switch (source)
  {
  case pref_default:
      return &pref->default_val.color;
  case pref_stashed:
      return &pref->stashed_val.color;
  case pref_current:
      return pref->varp.colorp;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 1913
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return NULL((void*)0);
1918}

1920/*
* Register a "custom" preference with a list.
* XXX - This should be temporary until we can find a better way
* to do "custom" preferences
*/
1925typedef void (*pref_custom_list_init_cb) (pref_t* pref, GList** value);

1927static void
1928prefs_register_list_custom_preference(module_t *module, const char *name,
                                    const char *title, const char *description,
                                    struct pref_custom_cbs* custom_cbs,
                                    pref_custom_list_init_cb init_cb,
                                    GList** list)
1933{
  pref_t* preference = register_preference(module, name, title, description, PREF_CUSTOM, false0);

  preference->custom_cbs = *custom_cbs;
  init_cb(preference, list);
1938}

1940/*
* Register a custom preference.
*/
1943void
1944prefs_register_custom_preference(module_t *module, const char *name,
                               const char *title, const char *description,
                               struct pref_custom_cbs* custom_cbs,
                               void **custom_data _U___attribute__((unused)))
1948{
  pref_t* preference = register_preference(module, name, title, description, PREF_CUSTOM, false0);

  preference->custom_cbs = *custom_cbs;
  /* XXX - wait until we can handle void** pointers
  preference->custom_cbs.init_cb(preference, custom_data);
  */
1955}

1957/*
* Register a dedicated TCP preference for SEQ analysis overriding.
* This is similar to the data structure from enum preference, except
* that when a preference dialog is used, the stashed value is the list
* of frame data pointers whose sequence analysis override will be set
* to the current value if the dialog is accepted.
*
* We don't need to read or write the value from the preferences file
* (or command line), because the override is reset to the default (0)
* for each frame when a new capture file is loaded.
*/
1968void
1969prefs_register_custom_preference_TCP_Analysis(module_t *module, const char *name,
                             const char *title, const char *description,
                             int *var, const enum_val_t *enumvals,
                             bool_Bool radio_buttons)
1973{
  pref_t *preference;

  preference = register_preference(module, name, title, description,
                                   PREF_PROTO_TCP_SNDAMB_ENUM, false0);
  preference->varp.enump = var;
  preference->default_val.enumval = *var;
  preference->stashed_val.list = NULL((void*)0);
  preference->info.enum_info.enumvals = enumvals;
  preference->info.enum_info.radio_buttons = radio_buttons;
1983}

1985/*
* Register a (internal) "Decode As" preference with a ranged value.
*/
1988void prefs_register_decode_as_range_preference(module_t *module, const char *name,
  const char *title, const char *description, range_t **var,
  uint32_t max_value, const char *dissector_table, const char *dissector_description)
1991{
  pref_t *preference;

  preference = prefs_register_range_preference_common(module, name, title,
              description, var, max_value, PREF_DECODE_AS_RANGE);
  preference->dissector_desc = dissector_description;
  preference->dissector_table = dissector_table;
1998}

2000/*
* Register a preference with password value.
*/
2003void
2004prefs_register_password_preference(module_t *module, const char *name,
                               const char *title, const char *description,
                               const char **var)
2007{
2008DIAG_OFF(cast-qual)clang diagnostic push
 clang diagnostic ignored "-Wcast-qual"

  register_string_like_preference(module, name, title, description,
                                  (char **)var, PREF_PASSWORD, NULL((void*)0), false0);
2011DIAG_ON(cast-qual)clang diagnostic pop
2012}

2014/*
* Register a preference with a dissector name.
*/
2017void
2018prefs_register_dissector_preference(module_t *module, const char *name,
                                  const char *title, const char *description,
                                  const char **var)
2021{
2022DIAG_OFF(cast-qual)clang diagnostic push
 clang diagnostic ignored "-Wcast-qual"

  register_string_like_preference(module, name, title, description,
                                  (char **)var, PREF_DISSECTOR, NULL((void*)0), false0);
2025DIAG_ON(cast-qual)clang diagnostic pop
2026}

2028bool_Bool prefs_add_decode_as_value(pref_t *pref, unsigned value, bool_Bool replace)
2029{
  switch(pref->type)
  {
  case PREF_DECODE_AS_RANGE:
      if (replace)
      {
          /* If range has single value, replace it */
          if (((*pref->varp.range)->nranges == 1) &&
              ((*pref->varp.range)->ranges[0].low == (*pref->varp.range)->ranges[0].high)) {
              wmem_free(pref->scope, *pref->varp.range);
              *pref->varp.range = range_empty(pref->scope);
          }
      }

      prefs_range_add_value(pref, value);
      break;
  default:
      /* XXX - Worth asserting over? */
      break;
  }

  return true1;
2051}

2053bool_Bool prefs_remove_decode_as_value(pref_t *pref, unsigned value, bool_Bool set_default _U___attribute__((unused)))
2054{
  switch(pref->type)
  {
  case PREF_DECODE_AS_RANGE:
      /* XXX - We could set to the default if the value is the only one
       * in the range.
       */
      prefs_range_remove_value(pref, value);
      break;
  default:
      break;
  }

  return true1;
2068}

2070/*
* Register a preference that used to be supported but no longer is.
*/
2073void
2074prefs_register_obsolete_preference(module_t *module, const char *name)
2075{
  register_preference(module, name, NULL((void*)0), NULL((void*)0), PREF_STATIC_TEXT, true1);
2077}

2079bool_Bool
2080prefs_is_preference_obsolete(pref_t *pref)
2081{
  return pref->obsolete;
2083}

2085void
2086prefs_set_preference_effect_fields(module_t *module, const char *name)
2087{
  prefs_set_preference_effect(module, name, PREF_EFFECT_FIELDS(1u << 3));
2089}

2091void prefs_set_preference_effect(module_t* module, const char* name, unsigned flags) {
  pref_t* pref = prefs_find_preference(module, name);
  if (pref) {
      prefs_set_effect_flags(pref, prefs_get_effect_flags(pref) | flags);
  }
2096}

2098unsigned
2099pref_stash(pref_t *pref, void *unused _U___attribute__((unused)))
2100{
  ws_assert(!pref->obsolete)do { if ((1) && !(!pref->obsolete)) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2101, __func__, "assertion failed: %s"
, "!pref->obsolete"); } while (0);

  switch (pref->type) {

  case PREF_UINT:
      pref->stashed_val.uint = *pref->varp.uint;
      break;

  case PREF_BOOL:
      pref->stashed_val.boolval = *pref->varp.boolp;
      break;

  case PREF_ENUM:
      pref->stashed_val.enumval = *pref->varp.enump;
      break;

  case PREF_INT:
      pref->stashed_val.intval = *pref->varp.intp;
      break;

  case PREF_FLOAT:
      pref->stashed_val.floatval = *pref->varp.floatp;
      break;

  case PREF_STRING:
  case PREF_SAVE_FILENAME:
  case PREF_OPEN_FILENAME:
  case PREF_DIRNAME:
  case PREF_PASSWORD:
  case PREF_DISSECTOR:
      wmem_free(pref->scope, pref->stashed_val.string);
      pref->stashed_val.string = wmem_strdup(pref->scope, *pref->varp.string);
      break;

  case PREF_DECODE_AS_RANGE:
  case PREF_RANGE:
      wmem_free(pref->scope, pref->stashed_val.range);
      pref->stashed_val.range = range_copy(pref->scope, *pref->varp.range);
      break;

  case PREF_COLOR:
      pref->stashed_val.color = *pref->varp.colorp;
      break;

  case PREF_STATIC_TEXT:
  case PREF_UAT:
  case PREF_CUSTOM:
  case PREF_PROTO_TCP_SNDAMB_ENUM:
      break;

  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2152
, __func__, "assertion \"not reached\" failed");
      break;
  }
  return 0;
2156}

2158unsigned
2159pref_unstash(pref_t *pref, void *unstash_data_p)
2160{
  pref_unstash_data_t *unstash_data = (pref_unstash_data_t *)unstash_data_p;
  dissector_table_t sub_dissectors = NULL((void*)0);
  dissector_handle_t handle = NULL((void*)0);

  ws_assert(!pref->obsolete)do { if ((1) && !(!pref->obsolete)) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2165, __func__, "assertion failed: %s"
, "!pref->obsolete"); } while (0);

  /* Revert the preference to its saved value. */
  switch (pref->type) {

  case PREF_UINT:
      if (*pref->varp.uint != pref->stashed_val.uint) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          *pref->varp.uint = pref->stashed_val.uint;
      }
      break;

  case PREF_INT:
      if (*pref->varp.intp != pref->stashed_val.intval) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          *pref->varp.intp = pref->stashed_val.intval;
      }
      break;

  case PREF_FLOAT:
      if (*pref->varp.floatp != pref->stashed_val.floatval) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          *pref->varp.floatp = pref->stashed_val.floatval;
      }
      break;

  case PREF_BOOL:
      if (*pref->varp.boolp != pref->stashed_val.boolval) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          *pref->varp.boolp = pref->stashed_val.boolval;
      }
      break;

  case PREF_ENUM:
      if (*pref->varp.enump != pref->stashed_val.enumval) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          *pref->varp.enump = pref->stashed_val.enumval;
      }
      break;

  case PREF_PROTO_TCP_SNDAMB_ENUM:
  {
      /* The preference dialogs are modal so the frame_data pointers should
       * still be valid; otherwise we could store the frame numbers to
       * change.
       */
      frame_data *fdata;
      for (GList* elem = pref->stashed_val.list; elem != NULL((void*)0); elem = elem->next) {
          fdata = (frame_data*)elem->data;
          if (fdata->tcp_snd_manual_analysis != *pref->varp.enump) {
              unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              fdata->tcp_snd_manual_analysis = *pref->varp.enump;
          }
      }
      break;
  }
  case PREF_STRING:
  case PREF_SAVE_FILENAME:
  case PREF_OPEN_FILENAME:
  case PREF_DIRNAME:
  case PREF_PASSWORD:
  case PREF_DISSECTOR:
      if (strcmp(*pref->varp.string, pref->stashed_val.string) != 0) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          wmem_free(pref->scope, *pref->varp.string);
          *pref->varp.string = wmem_strdup(pref->scope, pref->stashed_val.string);
      }
      break;

  case PREF_DECODE_AS_RANGE:
  {
      const char* table_name = prefs_get_dissector_table(pref);
      if (!ranges_are_equal(*pref->varp.range, pref->stashed_val.range)) {
          uint32_t i, j;
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);

          if (unstash_data->handle_decode_as) {
              sub_dissectors = find_dissector_table(table_name);
              if (sub_dissectors != NULL((void*)0)) {
                  const char *handle_desc = prefs_get_dissector_description(pref);
                  // It should perhaps be possible to get this via dissector name.
                  handle = dissector_table_get_dissector_handle(sub_dissectors, handle_desc);
                  if (handle != NULL((void*)0)) {
                      /* Set the current handle to NULL for all the old values
                       * in the dissector table. If there isn't an initial
                       * handle, this actually deletes the entry. (If there
                       * is an initial entry, keep it around so that the
                       * user can see the original value.)
                       *
                       * XXX - If there's an initial handle which is not this,
                       * reset it instead? At least this leaves the initial
                       * handle visible in the Decode As table.
                       */
                      for (i = 0; i < (*pref->varp.range)->nranges; i++) {
                          for (j = (*pref->varp.range)->ranges[i].low; j < (*pref->varp.range)->ranges[i].high; j++) {
                              dissector_change_uint(table_name, j, NULL((void*)0));
                              decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER(j)((gpointer) (gulong) (j)), NULL((void*)0), NULL((void*)0));
                          }

                          dissector_change_uint(table_name, (*pref->varp.range)->ranges[i].high, NULL((void*)0));
                          decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER((*pref->varp.range)->ranges[i].high)((gpointer) (gulong) ((*pref->varp.range)->ranges[i].high
)), NULL((void*)0), NULL((void*)0));
                      }
                  }
              }
          }

          wmem_free(pref->scope, *pref->varp.range);
          *pref->varp.range = range_copy(pref->scope, pref->stashed_val.range);

          if (unstash_data->handle_decode_as) {
              if ((sub_dissectors != NULL((void*)0)) && (handle != NULL((void*)0))) {

                  /* Add new values to the dissector table */
                  for (i = 0; i < (*pref->varp.range)->nranges; i++) {

                      for (j = (*pref->varp.range)->ranges[i].low; j < (*pref->varp.range)->ranges[i].high; j++) {
                          dissector_change_uint(table_name, j, handle);
                          decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER(j)((gpointer) (gulong) (j)), NULL((void*)0), NULL((void*)0));
                      }

                      dissector_change_uint(table_name, (*pref->varp.range)->ranges[i].high, handle);
                      decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER((*pref->varp.range)->ranges[i].high)((gpointer) (gulong) ((*pref->varp.range)->ranges[i].high
)), NULL((void*)0), NULL((void*)0));
                  }
              }
          }
      }
      break;
  }
  case PREF_RANGE:
      if (!ranges_are_equal(*pref->varp.range, pref->stashed_val.range)) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          wmem_free(pref->scope, *pref->varp.range);
          *pref->varp.range = range_copy(pref->scope, pref->stashed_val.range);
      }
  break;

  case PREF_COLOR:
      if ((pref->varp.colorp->blue != pref->stashed_val.color.blue) ||
          (pref->varp.colorp->red != pref->stashed_val.color.red) ||
          (pref->varp.colorp->green != pref->stashed_val.color.green)) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
          *pref->varp.colorp = pref->stashed_val.color;
      }
      break;
  case PREF_UAT:
      if (pref->varp.uat && pref->varp.uat->changed) {
          unstash_data->module->prefs_changed_flags |= prefs_get_effect_flags(pref);
      }
      break;
  case PREF_STATIC_TEXT:
  case PREF_CUSTOM:
      break;

  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2319
, __func__, "assertion \"not reached\" failed");
      break;
  }
  return 0;
2323}

2325void
2326reset_stashed_pref(pref_t *pref) {

  ws_assert(!pref->obsolete)do { if ((1) && !(!pref->obsolete)) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2328, __func__, "assertion failed: %s"
, "!pref->obsolete"); } while (0);

  switch (pref->type) {

  case PREF_UINT:
      pref->stashed_val.uint = pref->default_val.uint;
      break;

  case PREF_INT:
      pref->stashed_val.intval = pref->default_val.intval;
      break;

  case PREF_FLOAT:
      pref->stashed_val.floatval = pref->default_val.floatval;
      break;

  case PREF_BOOL:
      pref->stashed_val.boolval = pref->default_val.boolval;
      break;

  case PREF_ENUM:
      pref->stashed_val.enumval = pref->default_val.enumval;
      break;

  case PREF_STRING:
  case PREF_SAVE_FILENAME:
  case PREF_OPEN_FILENAME:
  case PREF_DIRNAME:
  case PREF_PASSWORD:
  case PREF_DISSECTOR:
      wmem_free(pref->scope, pref->stashed_val.string);
      pref->stashed_val.string = wmem_strdup(pref->scope, pref->default_val.string);
      break;

  case PREF_DECODE_AS_RANGE:
  case PREF_RANGE:
      wmem_free(pref->scope, pref->stashed_val.range);
      pref->stashed_val.range = range_copy(pref->scope, pref->default_val.range);
      break;

  case PREF_PROTO_TCP_SNDAMB_ENUM:
      if (pref->stashed_val.list != NULL((void*)0)) {
          g_list_free(pref->stashed_val.list);
          pref->stashed_val.list = NULL((void*)0);
      }
      break;

  case PREF_COLOR:
      memcpy(&pref->stashed_val.color, &pref->default_val.color, sizeof(color_t));
      break;

  case PREF_STATIC_TEXT:
  case PREF_UAT:
  case PREF_CUSTOM:
      break;

  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2385
, __func__, "assertion \"not reached\" failed");
      break;
  }
2388}

2390unsigned
2391pref_clean_stash(pref_t *pref, void *unused _U___attribute__((unused)))
2392{
  ws_assert(!pref->obsolete)do { if ((1) && !(!pref->obsolete)) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2393, __func__, "assertion failed: %s"
, "!pref->obsolete"); } while (0);

  switch (pref->type) {

  case PREF_UINT:
  case PREF_INT:
  case PREF_FLOAT:
  case PREF_BOOL:
  case PREF_ENUM:
      break;

  case PREF_STRING:
  case PREF_SAVE_FILENAME:
  case PREF_OPEN_FILENAME:
  case PREF_DIRNAME:
  case PREF_PASSWORD:
  case PREF_DISSECTOR:
      if (pref->stashed_val.string != NULL((void*)0)) {
          wmem_free(pref->scope, pref->stashed_val.string);
          pref->stashed_val.string = NULL((void*)0);
      }
      break;

  case PREF_DECODE_AS_RANGE:
  case PREF_RANGE:
      if (pref->stashed_val.range != NULL((void*)0)) {
          wmem_free(pref->scope, pref->stashed_val.range);
          pref->stashed_val.range = NULL((void*)0);
      }
      break;

  case PREF_STATIC_TEXT:
  case PREF_UAT:
  case PREF_COLOR:
  case PREF_CUSTOM:
      break;

  case PREF_PROTO_TCP_SNDAMB_ENUM:
      if (pref->stashed_val.list != NULL((void*)0)) {
          g_list_free(pref->stashed_val.list);
          pref->stashed_val.list = NULL((void*)0);
      }
      break;

  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2438
, __func__, "assertion \"not reached\" failed");
      break;
  }
  return 0;
2442}

2444/*
* Call a callback function, with a specified argument, for each preference
* in a given module.
*
* If any of the callbacks return a non-zero value, stop and return that
* value, otherwise return 0.
*/
2451unsigned
2452prefs_pref_foreach(module_t *module, pref_cb callback, void *user_data)
2453{
  GList *elem;
  pref_t *pref;
  unsigned ret;

  for (elem = g_list_first(module->prefs); elem != NULL((void*)0); elem = g_list_next(elem)((elem) ? (((GList *)(elem))->next) : ((void*)0))) {
      pref = (pref_t *)elem->data;
      if (!pref || pref->obsolete) {
          /*
           * This preference is no longer supported; it's
           * not a real preference, so we don't call the
           * callback for it (i.e., we treat it as if it
           * weren't found in the list of preferences,
           * and we weren't called in the first place).
           */
          continue;
      }

      ret = (*callback)(pref, user_data);
      if (ret != 0)
          return ret;
  }
  return 0;
2476}

2478static const enum_val_t st_sort_col_vals[] = {
  { "name",    "Node name (topic/item)", ST_SORT_COL_NAME1 },
  { "count",   "Item count", ST_SORT_COL_COUNT2 },
  { "average", "Average value of the node", ST_SORT_COL_AVG3 },
  { "min",     "Minimum value of the node", ST_SORT_COL_MIN4 },
  { "max",     "Maximum value of the node", ST_SORT_COL_MAX5 },
  { "burst",   "Burst rate of the node", ST_SORT_COL_BURSTRATE6 },
  { NULL((void*)0),      NULL((void*)0),         0 }
2486};

2488static const enum_val_t st_format_vals[] = {
  { "text",  "Plain text",             ST_FORMAT_PLAIN },
  { "csv",   "Comma separated values", ST_FORMAT_CSV   },
  { "xml",   "XML document",           ST_FORMAT_XML   },
  { "yaml",  "YAML document",          ST_FORMAT_YAML  },
  { NULL((void*)0),    NULL((void*)0),                     0 }
2494};

2496static void
2497stats_callback(void)
2498{
  /* Test for a sane tap update interval */
  if (prefs.tap_update_interval < 100 || prefs.tap_update_interval > 10000)
      prefs.tap_update_interval = TAP_UPDATE_DEFAULT_INTERVAL3000;

  /* burst resolution can't be less than 1 (ms) */
  if (prefs.st_burst_resolution < 1) {
      prefs.st_burst_resolution = 1;
  }
  else if (prefs.st_burst_resolution > ST_MAX_BURSTRES600000) {
      prefs.st_burst_resolution = ST_MAX_BURSTRES600000;
  }
  /* make sure burst window value makes sense */
  if (prefs.st_burst_windowlen < prefs.st_burst_resolution) {
      prefs.st_burst_windowlen = prefs.st_burst_resolution;
  }
  /* round burst window down to multiple of resolution */
  prefs.st_burst_windowlen -= prefs.st_burst_windowlen%prefs.st_burst_resolution;
  if ((prefs.st_burst_windowlen/prefs.st_burst_resolution) > ST_MAX_BURSTBUCKETS100) {
      prefs.st_burst_windowlen = prefs.st_burst_resolution*ST_MAX_BURSTBUCKETS100;
  }
2519}

2521static void
2522gui_callback(void)
2523{
  /* Ensure there is at least one file count */
  if (prefs.gui_recent_files_count_max == 0)
    prefs.gui_recent_files_count_max = 10;

  /* Ensure there is at least one display filter entry */
  if (prefs.gui_recent_df_entries_max == 0)
    prefs.gui_recent_df_entries_max = 10;

  /* number of decimal places should be between 2 and 10 */
  if (prefs.gui_decimal_places1 < 2) {
      prefs.gui_decimal_places1 = 2;
  } else if (prefs.gui_decimal_places1 > 10) {
      prefs.gui_decimal_places1 = 10;
  }
  /* number of decimal places should be between 2 and 10 */
  if (prefs.gui_decimal_places2 < 2) {
      prefs.gui_decimal_places2 = 2;
  } else if (prefs.gui_decimal_places2 > 10) {
      prefs.gui_decimal_places2 = 10;
  }
  /* number of decimal places should be between 2 and 10 */
  if (prefs.gui_decimal_places3 < 2) {
      prefs.gui_decimal_places3 = 2;
  } else if (prefs.gui_decimal_places3 > 10) {
      prefs.gui_decimal_places3 = 10;
  }
2550}

2552static void
2553gui_layout_callback(void)
2554{
  if (prefs.gui_layout_type == layout_unused ||
      prefs.gui_layout_type >= layout_type_max) {
    /* XXX - report an error?  It's not a syntax error - we'd need to
       add a way of reporting a *semantic* error. */
    prefs.gui_layout_type = layout_type_2;
  }
2561}

2563/******************************************************
* All custom preference function callbacks
******************************************************/
2566static void custom_pref_no_cb(pref_t* pref _U___attribute__((unused))) {}

2568/*
* Column preference functions
*/
2571#define PRS_COL_HIDDEN_FMT"column.hidden"               "column.hidden"
2572#define PRS_COL_HIDDEN"column.hide"                   "column.hide"
2573#define PRS_COL_FMT"column.format"                      "column.format"
2574#define PRS_COL_NUM"column.number"                      "column.number"
2575static module_t *gui_column_module;

2577static prefs_set_pref_e
2578column_hidden_set_cb(pref_t* pref, const char* value, unsigned int* changed_flags)
2579{
  GList       *clp;
  fmt_data    *cfmt;
  pref_t  *format_pref;

  /*
   * Prefer the new preference to the old format-based preference if we've
   * read it. (We probably could just compare the string to NULL and "".)
   */
  prefs.cols_hide_new = true1;

  (*changed_flags) |= prefs_set_string_value(pref, value, pref_current);

  /*
   * Set the "visible" flag for the existing columns; we need to
   * do this if we set PRS_COL_HIDDEN but don't set PRS_COL_FMT
   * after setting it (which might be the case if, for example, we
   * set PRS_COL_HIDDEN on the command line).
   */
  format_pref = prefs_find_preference(gui_column_module, PRS_COL_FMT"column.format");
  clp = (format_pref) ? *format_pref->varp.list : NULL((void*)0);
  int cidx = 1;
  while (clp) {
    cfmt = (fmt_data *)clp->data;
    cfmt->visible = prefs_is_column_visible(*pref->varp.string, cidx);
    cidx++;
    clp = clp->next;
  }

  return PREFS_SET_OK;
2609}

2611static const char *
2612column_hidden_type_name_cb(void)
2613{
  return "Packet list hidden columns";
2615}

2617static char *
2618column_hidden_type_description_cb(void)
2619{
  return g_strdup("List all column indices (1-indexed) to hide in the packet list.")g_strdup_inline ("List all column indices (1-indexed) to hide in the packet list."
);
2621}

2623static char *
2624column_hidden_to_str_cb(pref_t* pref, bool_Bool default_val)
2625{
  GString     *cols_hidden;
  GList       *clp;
  fmt_data    *cfmt;
  pref_t  *format_pref;
  int          cidx = 1;

  if (default_val)
      return g_strdup(pref->default_val.string)g_strdup_inline (pref->default_val.string);

  cols_hidden = g_string_new("");
  format_pref = prefs_find_preference(gui_column_module, PRS_COL_FMT"column.format");
  clp = (format_pref) ? *format_pref->varp.list : NULL((void*)0);
  while (clp) {
      cfmt = (fmt_data *) clp->data;
      if (!cfmt->visible) {
          if (cols_hidden->len)
              g_string_append (cols_hidden, ",")(__builtin_constant_p (",") ? __extension__ ({ const char * const
 __val = (","); g_string_append_len_inline (cols_hidden, __val
, (__val != ((void*)0)) ? (gssize) strlen (((__val) + !(__val
))) : (gssize) -1); }) : g_string_append_len_inline (cols_hidden
, ",", (gssize) -1));
          g_string_append_printf (cols_hidden, "%i", cidx);
      }
      clp = clp->next;
      cidx++;
  }

  return g_string_free (cols_hidden, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((cols_hidden
), ((0))) : g_string_free_and_steal (cols_hidden)) : (g_string_free
) ((cols_hidden), ((0))));
2650}

2652static bool_Bool
2653column_hidden_is_default_cb(pref_t* pref)
2654{
  char *cur_hidden_str = column_hidden_to_str_cb(pref, false0);
  bool_Bool is_default = g_strcmp0(cur_hidden_str, pref->default_val.string) == 0;

  g_free(cur_hidden_str);
  return is_default;
2660}

2662static prefs_set_pref_e
2663column_hidden_fmt_set_cb(pref_t* pref, const char* value, unsigned int* changed_flags)
2664{
  GList       *clp;
  fmt_data    *cfmt;
  pref_t  *format_pref;

  (*changed_flags) |= prefs_set_string_value(pref, value, pref_current);

  /*
   * Set the "visible" flag for the existing columns; we need to
   * do this if we set PRS_COL_HIDDEN_FMT but don't set PRS_COL_FMT
   * after setting it (which might be the case if, for example, we
   * set PRS_COL_HIDDEN_FMT on the command line; it shouldn't happen
   * when reading the configuration file because we write (both of)
   * the hidden column prefs before the column format prefs.)
   */
  format_pref = prefs_find_preference(gui_column_module, PRS_COL_FMT"column.format");
  clp = (format_pref) ? *format_pref->varp.list : NULL((void*)0);
  while (clp) {
    cfmt = (fmt_data *)clp->data;
    cfmt->visible = prefs_is_column_fmt_visible(*pref->varp.string, cfmt);
    clp = clp->next;
  }

  return PREFS_SET_OK;
2688}

2690static const char *
2691column_hidden_fmt_type_name_cb(void)
2692{
  return "Packet list hidden column formats (deprecated)";
2694}

2696static char *
2697column_hidden_fmt_type_description_cb(void)
2698{
  return g_strdup("List all column formats to hide in the packet list. Deprecated in favor of the index-based preference.")g_strdup_inline ("List all column formats to hide in the packet list. Deprecated in favor of the index-based preference."
);
2700}

2702static char *
2703column_hidden_fmt_to_str_cb(pref_t* pref, bool_Bool default_val)
2704{
  GString     *cols_hidden;
  GList       *clp;
  fmt_data    *cfmt;
  pref_t  *format_pref;

  if (default_val)
      return g_strdup(pref->default_val.string)g_strdup_inline (pref->default_val.string);

  cols_hidden = g_string_new("");
  format_pref = prefs_find_preference(gui_column_module, PRS_COL_FMT"column.format");
  clp = (format_pref) ? *format_pref->varp.list : NULL((void*)0);
  while (clp) {
      char *prefs_fmt;
      cfmt = (fmt_data *) clp->data;
      if (!cfmt->visible) {
          if (cols_hidden->len)
              g_string_append (cols_hidden, ",")(__builtin_constant_p (",") ? __extension__ ({ const char * const
 __val = (","); g_string_append_len_inline (cols_hidden, __val
, (__val != ((void*)0)) ? (gssize) strlen (((__val) + !(__val
))) : (gssize) -1); }) : g_string_append_len_inline (cols_hidden
, ",", (gssize) -1));
          prefs_fmt = column_fmt_data_to_str(cfmt);
          g_string_append(cols_hidden, prefs_fmt)(__builtin_constant_p (prefs_fmt) ? __extension__ ({ const char
 * const __val = (prefs_fmt); g_string_append_len_inline (cols_hidden
, __val, (__val != ((void*)0)) ? (gssize) strlen (((__val) + !
(__val))) : (gssize) -1); }) : g_string_append_len_inline (cols_hidden
, prefs_fmt, (gssize) -1));
          g_free(prefs_fmt);
      }
      clp = clp->next;
  }

  return g_string_free (cols_hidden, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((cols_hidden
), ((0))) : g_string_free_and_steal (cols_hidden)) : (g_string_free
) ((cols_hidden), ((0))));
2730}

2732static bool_Bool
2733column_hidden_fmt_is_default_cb(pref_t* pref)
2734{
  char *cur_hidden_str = column_hidden_fmt_to_str_cb(pref, false0);
  bool_Bool is_default = g_strcmp0(cur_hidden_str, pref->default_val.string) == 0;

  g_free(cur_hidden_str);
  return is_default;
2740}

2742/* Number of columns "preference".  This is only used internally and is not written to the
* preference file
*/
2745static void
2746column_num_reset_cb(pref_t* pref)
2747{
  *pref->varp.uint = pref->default_val.uint;
2749}

2751static prefs_set_pref_e
2752column_num_set_cb(pref_t* pref _U___attribute__((unused)), const char* value _U___attribute__((unused)), unsigned int* changed_flags _U___attribute__((unused)))
2753{
  /* Don't write this to the preferences file */
  return PREFS_SET_OK;
2756}

2758static const char *
2759column_num_type_name_cb(void)
2760{
  return NULL((void*)0);
2762}

2764static char *
2765column_num_type_description_cb(void)
2766{
  return g_strdup("")g_strdup_inline ("");
2768}

2770static bool_Bool
2771column_num_is_default_cb(pref_t* pref _U___attribute__((unused)))
2772{
  return true1;
2774}

2776static char *
2777column_num_to_str_cb(pref_t* pref _U___attribute__((unused)), bool_Bool default_val _U___attribute__((unused)))
2778{
  return g_strdup("")g_strdup_inline ("");
2780}

2782/*
* Column format custom preference functions
*/
2785static void
2786column_format_init_cb(pref_t* pref, GList** value)
2787{
  fmt_data *src_cfmt, *dest_cfmt;
  GList *entry;

  pref->varp.list = value;

  pref->default_val.list = NULL((void*)0);
  for (entry = *pref->varp.list; entry != NULL((void*)0); entry = g_list_next(entry)((entry) ? (((GList *)(entry))->next) : ((void*)0))) {
      src_cfmt = (fmt_data *)entry->data;
      dest_cfmt = g_new(fmt_data,1)((fmt_data *) g_malloc_n ((1), sizeof (fmt_data)));
      dest_cfmt->title = g_strdup(src_cfmt->title)g_strdup_inline (src_cfmt->title);
      dest_cfmt->fmt = src_cfmt->fmt;
      if (src_cfmt->custom_fields) {
          dest_cfmt->custom_fields = g_strdup(src_cfmt->custom_fields)g_strdup_inline (src_cfmt->custom_fields);
          dest_cfmt->custom_occurrence = src_cfmt->custom_occurrence;
      } else {
          dest_cfmt->custom_fields = NULL((void*)0);
          dest_cfmt->custom_occurrence = 0;
      }
      dest_cfmt->visible = src_cfmt->visible;
      dest_cfmt->display = src_cfmt->display;
      pref->default_val.list = g_list_append(pref->default_val.list, dest_cfmt);
  }

  column_register_fields();
2812}

2814static void
2815column_format_free_cb(pref_t* pref)
2816{
  free_col_info(*pref->varp.list);
  free_col_info(pref->default_val.list);
2819}

2821static void
2822column_format_reset_cb(pref_t* pref)
2823{
  fmt_data *src_cfmt, *dest_cfmt;
  GList *entry;
  pref_t  *col_num_pref;

  free_col_info(*pref->varp.list);
  *pref->varp.list = NULL((void*)0);

  for (entry = pref->default_val.list; entry != NULL((void*)0); entry = g_list_next(entry)((entry) ? (((GList *)(entry))->next) : ((void*)0))) {
      src_cfmt = (fmt_data *)entry->data;
      dest_cfmt = g_new(fmt_data,1)((fmt_data *) g_malloc_n ((1), sizeof (fmt_data)));
      dest_cfmt->title = g_strdup(src_cfmt->title)g_strdup_inline (src_cfmt->title);
      dest_cfmt->fmt = src_cfmt->fmt;
      if (src_cfmt->custom_fields) {
          dest_cfmt->custom_fields = g_strdup(src_cfmt->custom_fields)g_strdup_inline (src_cfmt->custom_fields);
          dest_cfmt->custom_occurrence = src_cfmt->custom_occurrence;
      } else {
          dest_cfmt->custom_fields = NULL((void*)0);
          dest_cfmt->custom_occurrence = 0;
      }
      dest_cfmt->visible = src_cfmt->visible;
      dest_cfmt->display = src_cfmt->display;
      *pref->varp.list = g_list_append(*pref->varp.list, dest_cfmt);
  }

  col_num_pref = prefs_find_preference(gui_column_module, PRS_COL_NUM"column.number");
  ws_assert(col_num_pref != NULL)do { if ((1) && !(col_num_pref != ((void*)0))) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2849, __func__, "assertion failed: %s"
, "col_num_pref != ((void*)0)"); } while (0); /* Should never happen */
  column_num_reset_cb(col_num_pref);
2851}

2853static prefs_set_pref_e
2854column_format_set_cb(pref_t* pref, const char* value, unsigned int* changed_flags _U___attribute__((unused)))
2855{
  GList    *col_l, *col_l_elt;
  fmt_data *cfmt;
  int      llen;
  pref_t   *hidden_pref, *col_num_pref;

  col_l = prefs_get_string_list(value);
  if (col_l == NULL((void*)0))
    return PREFS_SET_SYNTAX_ERR;
  if ((g_list_length(col_l) % 2) != 0) {
    /* A title didn't have a matching format.  */
    prefs_clear_string_list(col_l);
    return PREFS_SET_SYNTAX_ERR;
  }
  /* Check to make sure all column formats are valid.  */
  col_l_elt = g_list_first(col_l);
  while (col_l_elt) {
    fmt_data cfmt_check;

    /* Go past the title.  */
    col_l_elt = col_l_elt->next;

    /* Some predefined columns have been migrated to use custom columns.
     * We'll convert these silently here */
    try_convert_to_custom_column((char **)&col_l_elt->data);

    /* Parse the format to see if it's valid.  */
    if (!parse_column_format(&cfmt_check, (char *)col_l_elt->data)) {
      /* It's not a valid column format.  */
      prefs_clear_string_list(col_l);
      return PREFS_SET_SYNTAX_ERR;
    }
    if (cfmt_check.fmt == COL_CUSTOM) {
      /* We don't need the custom column field on this pass. */
      g_free(cfmt_check.custom_fields);
    }

    /* Go past the format.  */
    col_l_elt = col_l_elt->next;
  }

  /* They're all valid; process them. */
  free_col_info(*pref->varp.list);
  *pref->varp.list = NULL((void*)0);
  if (prefs.cols_hide_new) {
    hidden_pref = prefs_find_preference(gui_column_module, PRS_COL_HIDDEN"column.hide");
  } else {
    hidden_pref = prefs_find_preference(gui_column_module, PRS_COL_HIDDEN_FMT"column.hidden");
  }
  ws_assert(hidden_pref != NULL)do { if ((1) && !(hidden_pref != ((void*)0))) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2904, __func__, "assertion failed: %s"
, "hidden_pref != ((void*)0)"); } while (0); /* Should never happen */
  col_num_pref = prefs_find_preference(gui_column_module, PRS_COL_NUM"column.number");
  ws_assert(col_num_pref != NULL)do { if ((1) && !(col_num_pref != ((void*)0))) ws_log_fatal_full
("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 2906, __func__, "assertion failed: %s"
, "col_num_pref != ((void*)0)"); } while (0); /* Should never happen */
  llen             = g_list_length(col_l);
  *col_num_pref->varp.uint = llen / 2;
  col_l_elt = g_list_first(col_l);
  int cidx = 1;
  while (col_l_elt) {
    cfmt           = g_new(fmt_data,1)((fmt_data *) g_malloc_n ((1), sizeof (fmt_data)));
    cfmt->title    = g_strdup((char *)col_l_elt->data)g_strdup_inline ((char *)col_l_elt->data);
    col_l_elt      = col_l_elt->next;
    parse_column_format(cfmt, (char *)col_l_elt->data);
    if (prefs.cols_hide_new) {
      cfmt->visible   = prefs_is_column_visible(*hidden_pref->varp.string, cidx);
    } else {
      cfmt->visible   = prefs_is_column_fmt_visible(*hidden_pref->varp.string, cfmt);
    }
    col_l_elt      = col_l_elt->next;
    *pref->varp.list = g_list_append(*pref->varp.list, cfmt);
    cidx++;
  }

  prefs_clear_string_list(col_l);
  free_string_like_preference(hidden_pref);
  column_register_fields();
  return PREFS_SET_OK;
2930}


2933static const char *
2934column_format_type_name_cb(void)
2935{
  return "Packet list column format";
2937}

2939static char *
2940column_format_type_description_cb(void)
2941{
  return g_strdup("Each pair of strings consists of a column title and its format")g_strdup_inline ("Each pair of strings consists of a column title and its format"
);
2943}

2945static bool_Bool
2946column_format_is_default_cb(pref_t* pref)
2947{
  GList       *clp = *pref->varp.list,
              *pref_col = g_list_first(clp),
              *def_col = g_list_first(pref->default_val.list);
  fmt_data    *cfmt, *def_cfmt;
  bool_Bool        is_default = true1;
  pref_t      *col_num_pref;

  /* See if the column data has changed from the default */
  col_num_pref = prefs_find_preference(gui_column_module, PRS_COL_NUM"column.number");
  if (col_num_pref && *col_num_pref->varp.uint != col_num_pref->default_val.uint) {
      is_default = false0;
  } else {
      while (pref_col && def_col) {
          cfmt = (fmt_data *) pref_col->data;
          def_cfmt = (fmt_data *) def_col->data;
          if ((g_strcmp0(cfmt->title, def_cfmt->title) != 0) ||
                  (cfmt->fmt != def_cfmt->fmt) ||
                  (((cfmt->fmt == COL_CUSTOM) && (cfmt->custom_fields)) &&
                   ((g_strcmp0(cfmt->custom_fields, def_cfmt->custom_fields) != 0) ||
                    (cfmt->display != def_cfmt->display)))) {
              is_default = false0;
              break;
          }

          pref_col = pref_col->next;
          def_col = def_col->next;
      }
  }

  return is_default;
2978}

2980static char *
2981column_format_to_str_cb(pref_t* pref, bool_Bool default_val)
2982{
  GList       *pref_l = default_val ? pref->default_val.list : *pref->varp.list;
  GList       *clp = g_list_first(pref_l);
  GList       *col_l;
  fmt_data    *cfmt;
  char        *column_format_str;

  col_l = NULL((void*)0);
  while (clp) {
      cfmt = (fmt_data *) clp->data;
      col_l = g_list_append(col_l, g_strdup(cfmt->title)g_strdup_inline (cfmt->title));
      col_l = g_list_append(col_l, column_fmt_data_to_str(cfmt));
      clp = clp->next;
  }

  column_format_str = join_string_list(col_l);
  prefs_clear_string_list(col_l);
  return column_format_str;
3000}


3003/******  Capture column custom preference functions  ******/

3005/* This routine is only called when Wireshark is started, NOT when another profile is selected.
 Copy the pref->capture_columns list (just loaded with the capture_cols[] struct values)
 to prefs->default_val.list.
3008*/
3009static void
3010capture_column_init_cb(pref_t* pref, GList** capture_cols_values)
3011{
  GList   *ccv_list = *capture_cols_values,
          *dlist = NULL((void*)0);

  /*  */
  while (ccv_list) {
      dlist = g_list_append(dlist, g_strdup((char *)ccv_list->data)g_strdup_inline ((char *)ccv_list->data));
      ccv_list = ccv_list->next;
  }

  pref->default_val.list = dlist;
  pref->varp.list = &prefs.capture_columns;
  pref->stashed_val.boolval = false0;
3024}

3026/* Free the prefs->capture_columns list strings and remove the list entries.
 Note that since pref->varp.list points to &prefs.capture_columns, it is
 also freed.
3029*/
3030static void
3031capture_column_free_cb(pref_t* pref)
3032{
  prefs_clear_string_list(prefs.capture_columns);
  prefs.capture_columns = NULL((void*)0);

  if (pref->stashed_val.boolval == true1) {
    prefs_clear_string_list(pref->default_val.list);
    pref->default_val.list = NULL((void*)0);
  }
3040}

3042/* Copy pref->default_val.list to *pref->varp.list.
3043*/
3044static void
3045capture_column_reset_cb(pref_t* pref)
3046{
  GList *vlist = NULL((void*)0), *dlist;

  /* Free the column name strings and remove the links from *pref->varp.list */
  prefs_clear_string_list(*pref->varp.list);

  for (dlist = pref->default_val.list; dlist != NULL((void*)0); dlist = g_list_next(dlist)((dlist) ? (((GList *)(dlist))->next) : ((void*)0))) {
    vlist = g_list_append(vlist, g_strdup((char *)dlist->data)g_strdup_inline ((char *)dlist->data));
  }
  *pref->varp.list = vlist;
3056}

3058static prefs_set_pref_e
3059capture_column_set_cb(pref_t* pref, const char* value, unsigned int* changed_flags _U___attribute__((unused)))
3060{
  GList *col_l  = prefs_get_string_list(value);
  GList *col_l_elt;
  char *col_name;
  int i;

  if (col_l == NULL((void*)0))
    return PREFS_SET_SYNTAX_ERR;

  capture_column_free_cb(pref);

  /* If value (the list of capture.columns read from preferences) is empty, set capture.columns
     to the full list of valid capture column names. */
  col_l_elt = g_list_first(col_l);
  if (!(*(char *)col_l_elt->data)) {
      for (i = 0; i < num_capture_cols; i++) {
        col_name = g_strdup(capture_cols[i])g_strdup_inline (capture_cols[i]);
        prefs.capture_columns = g_list_append(prefs.capture_columns, col_name);
      }
  }

  /* Verify that all the column names are valid. If not, use the entire list of valid columns.
   */
  while (col_l_elt) {
    bool_Bool found_match = false0;
    col_name = (char *)col_l_elt->data;

    for (i = 0; i < num_capture_cols; i++) {
      if (strcmp(col_name, capture_cols[i])==0) {
        found_match = true1;
        break;
      }
    }
    if (!found_match) {
      /* One or more cols are invalid so use the entire list of valid cols. */
      for (i = 0; i < num_capture_cols; i++) {
        col_name = g_strdup(capture_cols[i])g_strdup_inline (capture_cols[i]);
        prefs.capture_columns = g_list_append(prefs.capture_columns, col_name);
      }
      pref->varp.list = &prefs.capture_columns;
      prefs_clear_string_list(col_l);
      return PREFS_SET_SYNTAX_ERR;
    }
    col_l_elt = col_l_elt->next;
  }

  col_l_elt = g_list_first(col_l);
  while (col_l_elt) {
    col_name = (char *)col_l_elt->data;
    prefs.capture_columns = g_list_append(prefs.capture_columns, col_name);
    col_l_elt = col_l_elt->next;
  }
  pref->varp.list = &prefs.capture_columns;
  g_list_free(col_l);
  return PREFS_SET_OK;
3115}


3118static const char *
3119capture_column_type_name_cb(void)
3120{
  return "Column list";
3122}

3124static char *
3125capture_column_type_description_cb(void)
3126{
  return g_strdup(g_strdup_inline ("List of columns to be displayed in the capture options dialog.\n"
 "Possible values: INTERFACE, LINK, PMODE, SNAPLEN, MONITOR, BUFFER, FILTER\n"
)
      "List of columns to be displayed in the capture options dialog.\n"g_strdup_inline ("List of columns to be displayed in the capture options dialog.\n"
 "Possible values: INTERFACE, LINK, PMODE, SNAPLEN, MONITOR, BUFFER, FILTER\n"
)
      CAPTURE_COL_TYPE_DESCRIPTION)g_strdup_inline ("List of columns to be displayed in the capture options dialog.\n"
 "Possible values: INTERFACE, LINK, PMODE, SNAPLEN, MONITOR, BUFFER, FILTER\n"
);
3130}

3132static bool_Bool
3133capture_column_is_default_cb(pref_t* pref)
3134{
  GList   *pref_col = g_list_first(prefs.capture_columns),
          *def_col = g_list_first(pref->default_val.list);
  bool_Bool is_default = true1;

  /* See if the column data has changed from the default */
  while (pref_col && def_col) {
      if (strcmp((char *)pref_col->data, (char *)def_col->data) != 0) {
          is_default = false0;
          break;
      }
      pref_col = pref_col->next;
      def_col = def_col->next;
  }

  /* Ensure the same column count */
  if (((pref_col == NULL((void*)0)) && (def_col != NULL((void*)0))) ||
      ((pref_col != NULL((void*)0)) && (def_col == NULL((void*)0))))
      is_default = false0;

  return is_default;
3155}

3157static char *
3158capture_column_to_str_cb(pref_t* pref, bool_Bool default_val)
3159{

  GList       *pref_l = default_val ? pref->default_val.list : prefs.capture_columns;
  GList       *clp = g_list_first(pref_l);
  GList       *col_l = NULL((void*)0);
  char        *col;
  char        *capture_column_str;

  while (clp) {
      col = (char *) clp->data;
      col_l = g_list_append(col_l, g_strdup(col)g_strdup_inline (col));
      clp = clp->next;
  }

  capture_column_str = join_string_list(col_l);
  prefs_clear_string_list(col_l);
  return capture_column_str;
3176}

3178static prefs_set_pref_e
3179colorized_frame_set_cb(pref_t* pref, const char* value, unsigned int* changed_flags)
3180{
  (*changed_flags) |= prefs_set_string_value(pref, value, pref_current);
  return PREFS_SET_OK;
3183}

3185static const char *
3186colorized_frame_type_name_cb(void)
3187{
 /* Don't write the colors of the 10 easy-access-colorfilters to the preferences
  * file until the colors can be changed in the GUI. Currently this is not really
  * possible since the STOCK-icons for these colors are hardcoded.
  *
  * XXX Find a way to change the colors of the STOCK-icons on the fly and then
  *     add these 10 colors to the list of colors that can be changed through
  *     the preferences.
  *
  */
  return NULL((void*)0);
3198}

3200static char *
3201colorized_frame_type_description_cb(void)
3202{
  return g_strdup("")g_strdup_inline ("");
3204}

3206static bool_Bool
3207colorized_frame_is_default_cb(pref_t* pref _U___attribute__((unused)))
3208{
  return true1;
3210}

3212static char *
3213colorized_frame_to_str_cb(pref_t* pref _U___attribute__((unused)), bool_Bool default_val _U___attribute__((unused)))
3214{
  return g_strdup("")g_strdup_inline ("");
3216}

3218/*
* Register all non-dissector modules' preferences.
*/
3221static module_t *gui_module;
3222static module_t *gui_color_module;
3223static module_t *nameres_module;

3225static void
3226prefs_register_modules(void)
3227{
  module_t *printing, *capture_module, *console_module,
      *gui_layout_module, *gui_font_module;
  module_t *extcap_module;
  unsigned int layout_gui_flags;
  struct pref_custom_cbs custom_cbs;

  if (protocols_module != NULL((void*)0)) {
      /* Already setup preferences */
      return;
  }

  /* GUI
   * These are "simple" GUI preferences that can be read/written using the
   * preference module API.  These preferences still use their own
   * configuration screens for access, but this cuts down on the
   * preference "string compare list" in set_pref()
   */
  extcap_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "extcap", "Extcap Utilities",
      "Extcap Utilities", NULL((void*)0), NULL((void*)0), false0);

  /* Setting default value to true */
  prefs.extcap_save_on_start = true1;
  prefs_register_bool_preference(extcap_module, "gui_save_on_start",
                                 "Save arguments on start of capture",
                                 "Save arguments on start of capture",
                                 &prefs.extcap_save_on_start);

  /* GUI
   * These are "simple" GUI preferences that can be read/written using the
   * preference module API.  These preferences still use their own
   * configuration screens for access, but this cuts down on the
   * preference "string compare list" in set_pref()
   */
  gui_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "gui", "User Interface",
      "User Interface", NULL((void*)0), &gui_callback, false0);
  /*
   * The GUI preferences don't affect dissection in general.
   * Any changes are signaled in other ways, so PREF_EFFECT_GUI doesn't
   * explicitly do anything, but wslua_set_preference expects *some*
   * effect flag to be set if the preference was changed.
   * We have to do this again for all the submodules (except for the
   * layout submodule, which has its own effect flag).
   */
  unsigned gui_effect_flags = prefs_get_module_effect_flags(gui_module);
  gui_effect_flags |= PREF_EFFECT_GUI(1u << 4);
  gui_effect_flags &= (~PREF_EFFECT_DISSECTION(1u << 0));
  prefs_set_module_effect_flags(gui_module, gui_effect_flags);

  /*
   * gui.console_open is stored in the registry in addition to the
   * preferences file. It is also read independently by ws_log_init()
   * for early log initialization of the console.
   */
  prefs_register_enum_preference(gui_module, "console_open",
                     "Open a console window",
                     "Open a console window (Windows only)",
                     (int *)&ws_log_console_open, gui_console_open_type, false0);

  prefs_register_obsolete_preference(gui_module, "scrollbar_on_right");
  prefs_register_obsolete_preference(gui_module, "packet_list_sel_browse");
  prefs_register_obsolete_preference(gui_module, "protocol_tree_sel_browse");
  prefs_register_obsolete_preference(gui_module, "tree_view_altern_colors");
  prefs_register_obsolete_preference(gui_module, "expert_composite_eyecandy");
  prefs_register_obsolete_preference(gui_module, "filter_toolbar_show_in_statusbar");

  prefs_register_bool_preference(gui_module, "restore_filter_after_following_stream",
                                 "Restore current display filter after following a stream",
                                 "Restore current display filter after following a stream?",
                                 &prefs.restore_filter_after_following_stream);

  prefs_register_obsolete_preference(gui_module, "protocol_tree_line_style");

  prefs_register_obsolete_preference(gui_module, "protocol_tree_expander_style");

  prefs_register_obsolete_preference(gui_module, "hex_dump_highlight_style");

  prefs_register_obsolete_preference(gui_module, "packet_editor.enabled");

  gui_column_module = prefs_register_subtree(gui_module, prefs_modules, "Columns", "Columns", NULL((void*)0));
  prefs_set_module_effect_flags(gui_column_module, gui_effect_flags);
  /* For reading older preference files with "column." preferences */
  prefs_register_module_alias("column", gui_column_module);


  custom_cbs.free_cb = free_string_like_preference;
  custom_cbs.reset_cb = reset_string_like_preference;
  custom_cbs.set_cb = column_hidden_set_cb;
  custom_cbs.type_name_cb = column_hidden_type_name_cb;
  custom_cbs.type_description_cb = column_hidden_type_description_cb;
  custom_cbs.is_default_cb = column_hidden_is_default_cb;
  custom_cbs.to_str_cb = column_hidden_to_str_cb;
  register_string_like_preference(gui_column_module, PRS_COL_HIDDEN"column.hide", "Packet list hidden columns",
      "List all column indices (1-indexed) to hide in the packet list",
      &cols_hidden_list, PREF_CUSTOM, &custom_cbs, false0);

  custom_cbs.set_cb = column_hidden_fmt_set_cb;
  custom_cbs.type_name_cb = column_hidden_fmt_type_name_cb;
  custom_cbs.type_description_cb = column_hidden_fmt_type_description_cb;
  custom_cbs.is_default_cb = column_hidden_fmt_is_default_cb;
  custom_cbs.to_str_cb = column_hidden_fmt_to_str_cb;

  register_string_like_preference(gui_column_module, PRS_COL_HIDDEN_FMT"column.hidden", "Packet list hidden column formats (deprecated)",
      "List all column formats to hide in the packet list; deprecated in favor of the index-based preference",
      &cols_hidden_fmt_list, PREF_CUSTOM, &custom_cbs, false0);

  custom_cbs.free_cb = column_format_free_cb;
  custom_cbs.reset_cb = column_format_reset_cb;
  custom_cbs.set_cb = column_format_set_cb;
  custom_cbs.type_name_cb = column_format_type_name_cb;
  custom_cbs.type_description_cb = column_format_type_description_cb;
  custom_cbs.is_default_cb = column_format_is_default_cb;
  custom_cbs.to_str_cb = column_format_to_str_cb;

  prefs_register_list_custom_preference(gui_column_module, PRS_COL_FMT"column.format", "Packet list column format",
      "Each pair of strings consists of a column title and its format", &custom_cbs,
      column_format_init_cb, &prefs.col_list);

  /* Number of columns.  This is only used internally and is not written to the
   * preference file
   */
  custom_cbs.free_cb = custom_pref_no_cb;
  custom_cbs.reset_cb = column_num_reset_cb;
  custom_cbs.set_cb = column_num_set_cb;
  custom_cbs.type_name_cb = column_num_type_name_cb;
  custom_cbs.type_description_cb = column_num_type_description_cb;
  custom_cbs.is_default_cb = column_num_is_default_cb;
  custom_cbs.to_str_cb = column_num_to_str_cb;
  prefs_register_uint_custom_preference(gui_column_module, PRS_COL_NUM"column.number", "Number of columns",
      "Number of columns in col_list", &custom_cbs, &prefs.num_cols);

  /* User Interface : Font */
  gui_font_module = prefs_register_subtree(gui_module, prefs_modules, "Font", "Font", NULL((void*)0));
  prefs_set_module_effect_flags(gui_font_module, gui_effect_flags);

  prefs_register_obsolete_preference(gui_font_module, "font_name");

  prefs_register_obsolete_preference(gui_font_module, "gtk2.font_name");

  register_string_like_preference(gui_font_module, "qt.font_name", "Font name",
      "Font name for packet list, protocol tree, and hex dump panes. (Qt)",
      &prefs.gui_font_name, PREF_STRING, NULL((void*)0), true1);

  /* User Interface : Colors */
  gui_color_module = prefs_register_subtree(gui_module, prefs_modules, "Colors", "Colors", NULL((void*)0));
  unsigned gui_color_effect_flags = gui_effect_flags | PREF_EFFECT_GUI_COLOR(1u << 5);
  prefs_set_module_effect_flags(gui_color_module, gui_color_effect_flags);

  prefs_register_enum_preference(gui_color_module, "color_scheme", "Color scheme", "Color scheme",
      &prefs.gui_color_scheme, gui_color_scheme, false0);

  prefs_register_color_preference(gui_color_module, "active_frame.fg", "Foreground color for an active selected item",
      "Foreground color for an active selected item", &prefs.gui_active_fg);

  prefs_register_color_preference(gui_color_module, "active_frame.bg", "Background color for an active selected item",
      "Background color for an active selected item", &prefs.gui_active_bg);

  prefs_register_enum_preference(gui_color_module, "active_frame.style", "Color style for an active selected item",
      "Color style for an active selected item", &prefs.gui_active_style, gui_selection_style, false0);

  prefs_register_color_preference(gui_color_module, "inactive_frame.fg", "Foreground color for an inactive selected item",
      "Foreground color for an inactive selected item", &prefs.gui_inactive_fg);

  prefs_register_color_preference(gui_color_module, "inactive_frame.bg", "Background color for an inactive selected item",
      "Background color for an inactive selected item", &prefs.gui_inactive_bg);

  prefs_register_enum_preference(gui_color_module, "inactive_frame.style", "Color style for an inactive selected item",
      "Color style for an inactive selected item", &prefs.gui_inactive_style, gui_selection_style, false0);

  prefs_register_color_preference(gui_color_module, "marked_frame.fg", "Color preferences for a marked frame",
      "Color preferences for a marked frame", &prefs.gui_marked_fg);

  prefs_register_color_preference(gui_color_module, "marked_frame.bg", "Color preferences for a marked frame",
      "Color preferences for a marked frame", &prefs.gui_marked_bg);

  prefs_register_color_preference(gui_color_module, "ignored_frame.fg", "Color preferences for a ignored frame",
      "Color preferences for a ignored frame", &prefs.gui_ignored_fg);

  prefs_register_color_preference(gui_color_module, "ignored_frame.bg", "Color preferences for a ignored frame",
      "Color preferences for a ignored frame", &prefs.gui_ignored_bg);

  prefs_register_color_preference(gui_color_module, "stream.client.fg", "TCP stream window color preference",
      "TCP stream window color preference", &prefs.st_client_fg);

  prefs_register_color_preference(gui_color_module, "stream.client.bg", "TCP stream window color preference",
      "TCP stream window color preference", &prefs.st_client_bg);

  prefs_register_color_preference(gui_color_module, "stream.server.fg", "TCP stream window color preference",
      "TCP stream window color preference", &prefs.st_server_fg);

  prefs_register_color_preference(gui_color_module, "stream.server.bg", "TCP stream window color preference",
      "TCP stream window color preference", &prefs.st_server_bg);

  custom_cbs.free_cb = free_string_like_preference;
  custom_cbs.reset_cb = reset_string_like_preference;
  custom_cbs.set_cb = colorized_frame_set_cb;
  custom_cbs.type_name_cb = colorized_frame_type_name_cb;
  custom_cbs.type_description_cb = colorized_frame_type_description_cb;
  custom_cbs.is_default_cb = colorized_frame_is_default_cb;
  custom_cbs.to_str_cb = colorized_frame_to_str_cb;
  register_string_like_preference(gui_column_module, "colorized_frame.fg", "Colorized Foreground",
      "Filter Colorized Foreground",
      &prefs.gui_colorized_fg, PREF_CUSTOM, &custom_cbs, true1);

  custom_cbs.free_cb = free_string_like_preference;
  custom_cbs.reset_cb = reset_string_like_preference;
  custom_cbs.set_cb = colorized_frame_set_cb;
  custom_cbs.type_name_cb = colorized_frame_type_name_cb;
  custom_cbs.type_description_cb = colorized_frame_type_description_cb;
  custom_cbs.is_default_cb = colorized_frame_is_default_cb;
  custom_cbs.to_str_cb = colorized_frame_to_str_cb;
  register_string_like_preference(gui_column_module, "colorized_frame.bg", "Colorized Background",
      "Filter Colorized Background",
      &prefs.gui_colorized_bg, PREF_CUSTOM, &custom_cbs, true1);

  prefs_register_color_preference(gui_color_module, "color_filter_fg.valid", "Valid color filter foreground",
      "Valid color filter foreground", &prefs.gui_filter_valid_fg);
  prefs_register_color_preference(gui_color_module, "color_filter_bg.valid", "Valid color filter background",
      "Valid color filter background", &prefs.gui_filter_valid_bg);

  prefs_register_color_preference(gui_color_module, "color_filter_fg.invalid", "Invalid color filter foreground",
      "Invalid color filter foreground", &prefs.gui_filter_invalid_fg);
  prefs_register_color_preference(gui_color_module, "color_filter_bg.invalid", "Invalid color filter background",
      "Invalid color filter background", &prefs.gui_filter_invalid_bg);

  prefs_register_color_preference(gui_color_module, "color_filter_fg.deprecated", "Deprecated color filter foreground",
      "Deprecated color filter foreground", &prefs.gui_filter_deprecated_fg);
  prefs_register_color_preference(gui_color_module, "color_filter_bg.deprecated", "Deprecated color filter background",
      "Deprecated color filter background", &prefs.gui_filter_deprecated_bg);

  prefs_register_enum_preference(gui_module, "fileopen.style",
                     "Where to start the File Open dialog box",
                     "Where to start the File Open dialog box",
                     (int*)&prefs.gui_fileopen_style, gui_fileopen_style, false0);

  prefs_register_uint_preference(gui_module, "recent_files_count.max",
                                 "The max. number of items in the open recent files list",
                                 "The max. number of items in the open recent files list",
                                 10,
                                 &prefs.gui_recent_files_count_max);

  prefs_register_uint_preference(gui_module, "recent_display_filter_entries.max",
                                 "The max. number of entries in the display filter list",
                                 "The max. number of entries in the display filter list",
                                 10,
                                 &prefs.gui_recent_df_entries_max);

  register_string_like_preference(gui_module, "fileopen.dir", "Start Directory",
      "Directory to start in when opening File Open dialog.",
      &prefs.gui_fileopen_dir, PREF_DIRNAME, NULL((void*)0), true1);

  prefs_register_obsolete_preference(gui_module, "fileopen.remembered_dir");

  prefs_register_uint_preference(gui_module, "fileopen.preview",
                                 "The preview timeout in the File Open dialog",
                                 "The preview timeout in the File Open dialog",
                                 10,
                                 &prefs.gui_fileopen_preview);

  register_string_like_preference(gui_module, "tlskeylog_command", "Program to launch with TLS Keylog",
      "Program path or command line to launch with SSLKEYLOGFILE",
      &prefs.gui_tlskeylog_command, PREF_STRING, NULL((void*)0), true1);

  prefs_register_bool_preference(gui_module, "ask_unsaved",
                                 "Ask to save unsaved capture files",
                                 "Ask to save unsaved capture files?",
                                 &prefs.gui_ask_unsaved);

  prefs_register_bool_preference(gui_module, "autocomplete_filter",
                                 "Display autocompletion for filter text",
                                 "Display an autocomplete suggestion for display and capture filter controls",
                                 &prefs.gui_autocomplete_filter);

  prefs_register_bool_preference(gui_module, "find_wrap",
                                 "Wrap to beginning/end of file during search",
                                 "Wrap to beginning/end of file during search?",
                                 &prefs.gui_find_wrap);

  prefs_register_obsolete_preference(gui_module, "use_pref_save");

  prefs_register_bool_preference(gui_module, "geometry.save.position",
                                 "Save window position at exit",
                                 "Save window position at exit?",
                                 &prefs.gui_geometry_save_position);

  prefs_register_bool_preference(gui_module, "geometry.save.size",
                                 "Save window size at exit",
                                 "Save window size at exit?",
                                 &prefs.gui_geometry_save_size);

  prefs_register_bool_preference(gui_module, "geometry.save.maximized",
                                 "Save window maximized state at exit",
                                 "Save window maximized state at exit?",
                                 &prefs.gui_geometry_save_maximized);

  prefs_register_obsolete_preference(gui_module, "macosx_style");

  prefs_register_obsolete_preference(gui_module, "geometry.main.x");
  prefs_register_obsolete_preference(gui_module, "geometry.main.y");
  prefs_register_obsolete_preference(gui_module, "geometry.main.width");
  prefs_register_obsolete_preference(gui_module, "geometry.main.height");
  prefs_register_obsolete_preference(gui_module, "toolbar_main_show");

  prefs_register_enum_preference(gui_module, "toolbar_main_style",
                     "Main Toolbar style",
                     "Main Toolbar style",
                     &prefs.gui_toolbar_main_style, gui_toolbar_style, false0);

  prefs_register_obsolete_preference(gui_module, "toolbar_filter_style");
  prefs_register_obsolete_preference(gui_module, "webbrowser");

  prefs_register_bool_preference(gui_module, "update.enabled",
                                 "Check for updates",
                                 "Check for updates (Windows and macOS only)",
                                 &prefs.gui_update_enabled);

  prefs_register_enum_preference(gui_module, "update.channel",
                     "Update channel",
                     "The type of update to fetch. You should probably leave this set to STABLE.",
                     (int*)(void*)(&prefs.gui_update_channel), gui_update_channel, false0);

  prefs_register_uint_preference(gui_module, "update.interval",
                                 "How often to check for software updates",
                                 "How often to check for software updates in seconds",
                                 10,
                                 &prefs.gui_update_interval);

  prefs_register_uint_preference(gui_module, "debounce.timer",
                                 "How long to wait before processing computationally intensive user input",
                                 "How long to wait (in milliseconds) before processing "
                                 "computationally intensive user input. "
                                 "If you type quickly, consider lowering the value for a 'snappier' "
                                 "experience. "
                                 "If you type slowly, consider increasing the value to avoid performance issues. "
                                 "This is currently used to delay searches in View -> Internals -> Supported Protocols "
                                 "and Preferences -> Advanced menu.",
                                 10,
                                 &prefs.gui_debounce_timer);

  register_string_like_preference(gui_module, "window_title", "Custom window title",
      "Custom window title to be appended to the existing title\n"
      "%C = capture comment from command line\n"
      "%F = file path of the capture file\n"
      "%P = profile name\n"
      "%S = a conditional separator (\" - \") that only shows when surrounded by variables with values or static text\n"
      "%V = version info",
      &prefs.gui_window_title, PREF_STRING, NULL((void*)0), true1);

  register_string_like_preference(gui_module, "prepend_window_title", "Custom window title prefix",
      "Custom window title to be prepended to the existing title\n"
      "%C = capture comment from command line\n"
      "%F = file path of the capture file\n"
      "%P = profile name\n"
      "%S = a conditional separator (\" - \") that only shows when surrounded by variables with values or static text\n"
      "%V = version info",
      &prefs.gui_prepend_window_title, PREF_STRING, NULL((void*)0), true1);

  register_string_like_preference(gui_module, "start_title", "Custom start page title",
      "Custom start page title",
      &prefs.gui_start_title, PREF_STRING, NULL((void*)0), true1);

  prefs_register_enum_preference(gui_module, "version_placement",
                     "Show version in the start page and/or main screen's title bar",
                     "Show version in the start page and/or main screen's title bar",
                     (int*)(void*)(&prefs.gui_version_placement), gui_version_placement_type, false0);

  prefs_register_obsolete_preference(gui_module, "auto_scroll_on_expand");
  prefs_register_obsolete_preference(gui_module, "auto_scroll_percentage");

  prefs_register_uint_preference(gui_module, "max_export_objects",
                                 "Maximum number of exported objects",
                                 "The maximum number of objects that can be exported",
                                 10,
                                 &prefs.gui_max_export_objects);
  prefs_register_uint_preference(gui_module, "max_tree_items",
                                 "Maximum number of tree items",
                                 "The maximum number of items that can be added to the dissection tree (Increase with caution)",
                                 10,
                                 &prefs.gui_max_tree_items);
  /*
   * Used independently by proto_tree_add_node, call_dissector*, dissector_try_heuristic,
   * and increment_dissection_depth.
   */
  prefs_register_uint_preference(gui_module, "max_tree_depth",
                                 "Maximum dissection depth",
                                 "The maximum depth for dissection tree and protocol layer checks. (Increase with caution)",
                                 10,
                                 &prefs.gui_max_tree_depth);

  prefs_register_bool_preference(gui_module, "welcome_page.show_recent",
                                 "Show recent files on the welcome page",
                                 "This will enable or disable the 'Open' list on the welcome page.",
                                 &prefs.gui_welcome_page_show_recent);

  /* User Interface : Layout */
  gui_layout_module = prefs_register_subtree(gui_module, prefs_modules, "Layout", "Layout", gui_layout_callback);
  /* Adjust the preference effects of layout GUI for better handling of preferences at Wireshark (GUI) level */
  layout_gui_flags = prefs_get_module_effect_flags(gui_layout_module);
  layout_gui_flags |= PREF_EFFECT_GUI_LAYOUT(1u << 2);
  layout_gui_flags &= (~PREF_EFFECT_DISSECTION(1u << 0));

  prefs_register_uint_preference(gui_layout_module, "layout_type",
                                 "Layout type",
                                 "Layout type (1-6)",
                                 10,
                                 (unsigned*)(void*)(&prefs.gui_layout_type));
  prefs_set_effect_flags_by_name(gui_layout_module, "layout_type", layout_gui_flags);

  prefs_register_enum_preference(gui_layout_module, "layout_content_1",
                     "Layout content of the pane 1",
                     "Layout content of the pane 1",
                     (int*)(void*)(&prefs.gui_layout_content_1), gui_layout_content, false0);
  prefs_set_effect_flags_by_name(gui_layout_module, "layout_content_1", layout_gui_flags);

  prefs_register_enum_preference(gui_layout_module, "layout_content_2",
                     "Layout content of the pane 2",
                     "Layout content of the pane 2",
                     (int*)(void*)(&prefs.gui_layout_content_2), gui_layout_content, false0);
  prefs_set_effect_flags_by_name(gui_layout_module, "layout_content_2", layout_gui_flags);

  prefs_register_enum_preference(gui_layout_module, "layout_content_3",
                     "Layout content of the pane 3",
                     "Layout content of the pane 3",
                     (int*)(void*)(&prefs.gui_layout_content_3), gui_layout_content, false0);
  prefs_set_effect_flags_by_name(gui_layout_module, "layout_content_3", layout_gui_flags);

  prefs_register_bool_preference(gui_layout_module, "packet_list_separator.enabled",
                                 "Enable Packet List Separator",
                                 "Enable Packet List Separator",
                                 &prefs.gui_packet_list_separator);

  prefs_register_bool_preference(gui_layout_module, "packet_header_column_definition.enabled",
                                  "Show column definition in packet list header",
                                  "Show column definition in packet list header",
                                  &prefs.gui_packet_header_column_definition);

  /* packet_list_hover_style affects the colors, not the layout.
   * It's in the layout module to group it with the other packet list
   * preferences for the user's benefit with the dialog.
   */
  prefs_register_bool_preference(gui_layout_module, "packet_list_hover_style.enabled",
                                 "Enable Packet List mouse-over colorization",
                                 "Enable Packet List mouse-over colorization",
                                 &prefs.gui_packet_list_hover_style);
  prefs_set_effect_flags_by_name(gui_layout_module, "packet_list_hover_style.enabled", gui_color_effect_flags);

  prefs_register_bool_preference(gui_layout_module, "show_selected_packet.enabled",
                                 "Show selected packet in the Status Bar",
                                 "Show selected packet in the Status Bar",
                                 &prefs.gui_show_selected_packet);

  prefs_register_bool_preference(gui_layout_module, "show_file_load_time.enabled",
                                 "Show file load time in the Status Bar",
                                 "Show file load time in the Status Bar",
                                 &prefs.gui_show_file_load_time);

  prefs_register_enum_preference(gui_layout_module, "packet_dialog_layout",
                                 "Packet Dialog layout",
                                 "Packet Dialog layout",
                                 (int*)(&prefs.gui_packet_dialog_layout), gui_packet_dialog_layout, false0);

  prefs_register_enum_preference(gui_module, "packet_list_elide_mode",
                     "Elide mode",
                     "The position of \"...\" (ellipsis) in packet list text.",
                     (int*)(void*)(&prefs.gui_packet_list_elide_mode), gui_packet_list_elide_mode, false0);
  prefs_register_uint_preference(gui_module, "decimal_places1",
          "Count of decimal places for values of type 1",
          "Sets the count of decimal places for values of type 1."
          "Type 1 values are defined by authors."
          "Value can be in range 2 to 10.",
          10,&prefs.gui_decimal_places1);

  prefs_register_uint_preference(gui_module, "decimal_places2",
          "Count of decimal places for values of type 2",
          "Sets the count of decimal places for values of type 2."
          "Type 2 values are defined by authors."
          "Value can be in range 2 to 10.",
          10,&prefs.gui_decimal_places2);

  prefs_register_uint_preference(gui_module, "decimal_places3",
          "Count of decimal places for values of type 3",
          "Sets the count of decimal places for values of type 3."
          "Type 3 values are defined by authors."
          "Value can be in range 2 to 10.",
          10,&prefs.gui_decimal_places3);

  prefs_register_bool_preference(gui_module, "rtp_player_use_disk1",
          "RTP Player saves temporary data to disk",
          "If set to true, RTP Player saves temporary data to "
          "temp files on disk. If not set, it uses memory."
          "Every stream uses one file therefore you might touch "
          "OS limit for count of opened files."
          "When ui.rtp_player_use_disk2 is set to true too, it uses "
          " two files per RTP stream together."
          ,&prefs.gui_rtp_player_use_disk1);

  prefs_register_bool_preference(gui_module, "rtp_player_use_disk2",
          "RTP Player saves temporary dictionary for data to disk",
          "If set to true, RTP Player saves temporary dictionary to "
          "temp files on disk. If not set, it uses memory."
          "Every stream uses one file therefore you might touch "
          "OS limit for count of opened files."
          "When ui.rtp_player_use_disk1 is set to true too, it uses "
          " two files per RTP stream."
          ,&prefs.gui_rtp_player_use_disk2);

  prefs_register_enum_preference(gui_layout_module, "gui_packet_list_copy_format_options_for_keyboard_shortcut",
                                 "Allows text to be copied with selected format",
                                 "Allows text to be copied with selected format when copied via keyboard",
                                 (int*)(void*)(&prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut),
                                 gui_packet_list_copy_format_options_for_keyboard_shortcut, false0);

  prefs_register_bool_preference(gui_layout_module, "gui_packet_list_copy_text_with_aligned_columns",
                                 "Allows text to be copied with aligned columns",
                                 "Allows text to be copied with aligned columns when copied via menu or keyboard",
                                 &prefs.gui_packet_list_copy_text_with_aligned_columns);

  prefs_register_bool_preference(gui_layout_module, "packet_list_show_related",
                                 "Show Related Packets",
                                 "Show related packet indicators in the first column",
                                 &prefs.gui_packet_list_show_related);

  prefs_register_bool_preference(gui_layout_module, "packet_list_show_minimap",
                                 "Enable Intelligent Scroll Bar",
                                 "Show the intelligent scroll bar (a minimap of packet list colors in the scrollbar)",
                                 &prefs.gui_packet_list_show_minimap);

  prefs_register_bool_preference(gui_module, "packet_list_is_sortable",
                                 "Allow packet list to be sortable",
                                 "To prevent sorting by mistake (which can take some time to calculate), it can be disabled",
                                 &prefs.gui_packet_list_sortable);

  prefs_register_uint_preference(gui_module, "packet_list_cached_rows_max",
                                 "Maximum cached rows",
                                 "Maximum number of rows that can be sorted by columns that require dissection. Increasing this increases memory consumption by caching column text",
                                 10,
                                 &prefs.gui_packet_list_cached_rows_max);

  prefs_register_bool_preference(gui_module, "interfaces_show_hidden",
                                 "Show hidden interfaces",
                                 "Show all interfaces, including interfaces marked as hidden",
                                 &prefs.gui_interfaces_show_hidden);

  prefs_register_bool_preference(gui_module, "interfaces_remote_display",
                                 "Show Remote interfaces",
                                 "Show remote interfaces in the interface selection",
                                 &prefs.gui_interfaces_remote_display);

  register_string_like_preference(gui_module, "interfaces_hidden_types", "Hide interface types in list",
      "Hide the given interface types in the startup list.\n"
      "A comma-separated string of interface type values (e.g. 5,9).\n"
       "0 = Wired,\n"
       "1 = AirPCAP,\n"
       "2 = Pipe,\n"
       "3 = STDIN,\n"
       "4 = Bluetooth,\n"
       "5 = Wireless,\n"
       "6 = Dial-Up,\n"
       "7 = USB,\n"
       "8 = External Capture,\n"
       "9 = Virtual",
      &prefs.gui_interfaces_hide_types, PREF_STRING, NULL((void*)0), true1);

  prefs_register_bool_preference(gui_module, "io_graph_automatic_update",
      "Enables automatic updates for IO Graph",
      "Enables automatic updates for IO Graph",
      &prefs.gui_io_graph_automatic_update);

  prefs_register_bool_preference(gui_module, "io_graph_enable_legend",
      "Enables the legend of IO Graph",
      "Enables the legend of IO Graph",
      &prefs.gui_io_graph_enable_legend);

  prefs_register_bool_preference(gui_module, "plot_automatic_update",
      "Enables automatic updates for Plot",
      "Enables automatic updates for Plot",
      &prefs.gui_plot_automatic_update);

  prefs_register_bool_preference(gui_module, "plot_enable_legend",
      "Enables the legend of Plot",
      "Enables the legend of Plot",
      &prefs.gui_plot_enable_legend);

  prefs_register_bool_preference(gui_module, "plot_enable_auto_scroll",
      "Enables auto scroll of Plot",
      "Enables auto scroll of Plot",
      &prefs.gui_plot_enable_auto_scroll);

  prefs_register_bool_preference(gui_module, "show_byteview_in_dialog",
      "Show the byte view in the packet details dialog",
      "Show the byte view in the packet details dialog",
      &prefs.gui_packet_details_show_byteview);

  /* Console
   * These are preferences that can be read/written using the
   * preference module API.  These preferences still use their own
   * configuration screens for access, but this cuts down on the
   * preference "string compare list" in set_pref()
   */
  console_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "console", "Console",
      "Console logging and debugging output", NULL((void*)0), NULL((void*)0), false0);

  prefs_register_obsolete_preference(console_module, "log.level");

  prefs_register_bool_preference(console_module, "incomplete_dissectors_check_debug",
                                 "Print debug line for incomplete dissectors",
                                 "Look for dissectors that left some bytes undecoded (debug)",
                                 &prefs.incomplete_dissectors_check_debug);

  /* Display filter Expressions
   * This used to be an array of individual fields that has now been
   * converted to a UAT.  Just make it part of the GUI category even
   * though the name of the preference will never be seen in preference
   * file
   */
  filter_expression_register_uat(gui_module);

  /* Capture
   * These are preferences that can be read/written using the
   * preference module API.  These preferences still use their own
   * configuration screens for access, but this cuts down on the
   * preference "string compare list" in set_pref()
   */
  capture_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "capture", "Capture",
      "Capture preferences", NULL((void*)0), apply_aggregation_prefs, false0);
  /* Capture preferences don't affect dissection */
  prefs_set_module_effect_flags(capture_module, PREF_EFFECT_CAPTURE(1u << 1));

  register_string_like_preference(capture_module, "device", "Default capture device",
      "Default capture device",
      &prefs.capture_device, PREF_STRING, NULL((void*)0), false0);

  register_string_like_preference(capture_module, "devices_linktypes", "Interface link-layer header type",
      "Interface link-layer header types (Ex: en0(1),en1(143),...)",
      &prefs.capture_devices_linktypes, PREF_STRING, NULL((void*)0), false0);

  register_string_like_preference(capture_module, "devices_descr", "Interface descriptions",
      "Interface descriptions (Ex: eth0(eth0 descr),eth1(eth1 descr),...)",
      &prefs.capture_devices_descr, PREF_STRING, NULL((void*)0), false0);

  register_string_like_preference(capture_module, "devices_hide", "Hide interface",
      "Hide interface? (Ex: eth0,eth3,...)",
      &prefs.capture_devices_hide, PREF_STRING, NULL((void*)0), false0);

  register_string_like_preference(capture_module, "devices_monitor_mode", "Capture in monitor mode",
      "By default, capture in monitor mode on interface? (Ex: eth0,eth3,...)",
      &prefs.capture_devices_monitor_mode, PREF_STRING, NULL((void*)0), false0);

  register_string_like_preference(capture_module, "devices_buffersize", "Interface buffer size",
      "Interface buffer size (Ex: en0(1),en1(143),...)",
      &prefs.capture_devices_buffersize, PREF_STRING, NULL((void*)0), false0);

  register_string_like_preference(capture_module, "devices_snaplen", "Interface snap length",
      "Interface snap length (Ex: en0(65535),en1(1430),...)",
      &prefs.capture_devices_snaplen, PREF_STRING, NULL((void*)0), false0);

  register_string_like_preference(capture_module, "devices_pmode", "Interface promiscuous mode",
      "Interface promiscuous mode (Ex: en0(0),en1(1),...)",
      &prefs.capture_devices_pmode, PREF_STRING, NULL((void*)0), false0);

  prefs_register_bool_preference(capture_module, "prom_mode", "Capture in promiscuous mode",
      "Capture in promiscuous mode?", &prefs.capture_prom_mode);

  prefs_register_bool_preference(capture_module, "monitor_mode", "Capture in monitor mode on 802.11 devices",
      "Capture in monitor mode on all 802.11 devices that support it?", &prefs.capture_monitor_mode);

  register_string_like_preference(capture_module, "devices_filter", "Interface capture filter",
      "Interface capture filter (Ex: en0(tcp),en1(udp),...)",
      &prefs.capture_devices_filter, PREF_STRING, NULL((void*)0), false0);

  prefs_register_bool_preference(capture_module, "pcap_ng", "Capture in pcapng format",
      "Capture in pcapng format?", &prefs.capture_pcap_ng);

  prefs_register_bool_preference(capture_module, "real_time_update", "Update packet list in real time during capture",
      "Update packet list in real time during capture?", &prefs.capture_real_time);

  prefs_register_uint_preference(capture_module, "update_interval",
                                 "Capture update interval",
                                 "Capture update interval in ms",
                                 10,
                                 &prefs.capture_update_interval);

  prefs_register_bool_preference(capture_module, "enable_aggregation_view", "Enable aggregation view",
      "Enable Aggregation View for real-time capturing", &prefs.enable_aggregation);

  prefs_register_bool_preference(capture_module, "no_interface_load", "Don't load interfaces on startup",
      "Don't automatically load capture interfaces on startup", &prefs.capture_no_interface_load);

  prefs_register_bool_preference(capture_module, "no_extcap", "Disable external capture interfaces",
      "Disable external capture modules (extcap)", &prefs.capture_no_extcap);

  prefs_register_obsolete_preference(capture_module, "auto_scroll");

  prefs_register_bool_preference(capture_module, "show_info", "Show capture information dialog while capturing",
      "Show capture information dialog while capturing?", &prefs.capture_show_info);

  prefs_register_obsolete_preference(capture_module, "syntax_check_filter");

  custom_cbs.free_cb = capture_column_free_cb;
  custom_cbs.reset_cb = capture_column_reset_cb;
  custom_cbs.set_cb = capture_column_set_cb;
  custom_cbs.type_name_cb = capture_column_type_name_cb;
  custom_cbs.type_description_cb = capture_column_type_description_cb;
  custom_cbs.is_default_cb = capture_column_is_default_cb;
  custom_cbs.to_str_cb = capture_column_to_str_cb;
  prefs_register_list_custom_preference(capture_module, "columns", "Capture options dialog column list",
      "List of columns to be displayed", &custom_cbs, capture_column_init_cb, &prefs.capture_columns);
  aggregation_field_register_uat(capture_module);

  /* Name Resolution */
  nameres_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "nameres", "Name Resolution",
      "Name Resolution", "ChCustPreferencesSection.html#ChCustPrefsNameSection", addr_resolve_pref_apply, true1);
  addr_resolve_pref_init(nameres_module);
  oid_pref_init(nameres_module);
  maxmind_db_pref_init(nameres_module);

  /* Printing
   * None of these have any effect; we keep them as obsolete preferences
   * in order to avoid errors when reading older preference files.
   */
  printing = prefs_register_module(prefs_top_level_modules, prefs_modules, "print", "Printing",
      "Printing", NULL((void*)0), NULL((void*)0), false0);
  prefs_register_obsolete_preference(printing, "format");
  prefs_register_obsolete_preference(printing, "command");
  prefs_register_obsolete_preference(printing, "file");

  /* Codecs */
  codecs_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "codecs", "Codecs",
      "Codecs", NULL((void*)0), NULL((void*)0), true1);

  /* Statistics */
  stats_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "statistics", "Statistics",
      "Statistics", "ChCustPreferencesSection.html#_statistics", &stats_callback, true1);

  prefs_register_uint_preference(stats_module, "update_interval",
                                 "Tap update interval in ms",
                                 "Determines time between tap updates",
                                 10,
                                 &prefs.tap_update_interval);

  prefs_register_uint_preference(stats_module, "flow_graph_max_export_items",
                                 "Maximum Flow Graph items to export as image",
                                 "The maximum number of Flow Graph items (frames) "
                                 "to include when exporting the graph as an image. "
                                 "Note that some formats (e.g., JPEG) have inherent "
                                 "pixel limits and image viewers might be unable to "
                                 "handle very large images.",
                                 10,
                                 &prefs.flow_graph_max_export_items);

  prefs_register_bool_preference(stats_module, "st_enable_burstinfo",
          "Enable the calculation of burst information",
          "If enabled burst rates will be calculated for statistics that use the stats_tree system. "
          "Burst rates are calculated over a much shorter time interval than the rate column.",
          &prefs.st_enable_burstinfo);

  prefs_register_bool_preference(stats_module, "st_burst_showcount",
          "Show burst count for item rather than rate",
          "If selected the stats_tree statistics nodes will show the count of events "
          "within the burst window instead of a burst rate. Burst rate is calculated "
          "as number of events within burst window divided by the burst windown length.",
          &prefs.st_burst_showcount);

  prefs_register_uint_preference(stats_module, "st_burst_resolution",
          "Burst rate resolution (ms)",
          "Sets the duration of the time interval into which events are grouped when calculating "
          "the burst rate. Higher resolution (smaller number) increases processing overhead.",
          10,&prefs.st_burst_resolution);

  prefs_register_uint_preference(stats_module, "st_burst_windowlen",
          "Burst rate window size (ms)",
          "Sets the duration of the sliding window during which the burst rate is "
          "measured. Longer window relative to burst rate resolution increases "
          "processing overhead. Will be truncated to a multiple of burst resolution.",
          10,&prefs.st_burst_windowlen);

  prefs_register_enum_preference(stats_module, "st_sort_defcolflag",
          "Default sort column for stats_tree stats",
          "Sets the default column by which stats based on the stats_tree "
          "system is sorted.",
          &prefs.st_sort_defcolflag, st_sort_col_vals, false0);

  prefs_register_bool_preference(stats_module, "st_sort_defdescending",
          "Default stats_tree sort order is descending",
          "When selected, statistics based on the stats_tree system will by default "
          "be sorted in descending order.",
          &prefs.st_sort_defdescending);

  prefs_register_bool_preference(stats_module, "st_sort_casesensitve",
          "Case sensitive sort of stats_tree item names",
          "When selected, the item/node names of statistics based on the stats_tree "
          "system will be sorted taking case into account. Else the case of the name "
          "will be ignored.",
          &prefs.st_sort_casesensitve);

  prefs_register_bool_preference(stats_module, "st_sort_rng_nameonly",
          "Always sort 'range' nodes by name",
          "When selected, the stats_tree nodes representing a range of values "
          "(0-49, 50-100, etc.) will always be sorted by name (the range of the "
          "node). Else range nodes are sorted by the same column as the rest of "
          " the tree.",
          &prefs.st_sort_rng_nameonly);

  prefs_register_bool_preference(stats_module, "st_sort_rng_fixorder",
          "Always sort 'range' nodes in ascending order",
          "When selected, the stats_tree nodes representing a range of values "
          "(0-49, 50-100, etc.) will always be sorted ascending; else it follows "
          "the sort direction of the tree. Only effective if \"Always sort "
          "'range' nodes by name\" is also selected.",
          &prefs.st_sort_rng_fixorder);

  prefs_register_bool_preference(stats_module, "st_sort_showfullname",
          "Display the full stats_tree plug-in name",
          "When selected, the full name (including menu path) of the stats_tree "
          "plug-in is show in windows. If cleared the plug-in name is shown "
          "without menu path (only the part of the name after last '/' character.)",
          &prefs.st_sort_showfullname);

  prefs_register_enum_preference(stats_module, "output_format",
          "Default output format",
          "Sets the default output format for statistical data. Only supported "
          "by taps using the stats_tree system currently; other taps may honor "
          "this preference in the future. ",
          &prefs.st_format, st_format_vals, false0);

  module_t *conv_module;
  // avoid using prefs_register_stat to prevent lint complaint about recursion
  conv_module = prefs_register_submodule(stats_module, prefs_modules, "conv", "Conversations",
          "Conversations & Endpoints", NULL((void*)0), NULL((void*)0), true1);
  prefs_register_bool_preference(conv_module, "machine_readable",
          "Display exact (machine-readable) byte counts",
          "When enabled, exact machine-readable byte counts are displayed. "
          "When disabled, human readable numbers with SI prefixes are displayed.",
          &prefs.conv_machine_readable);

  /* Protocols */
  protocols_module = prefs_register_module(prefs_top_level_modules, prefs_modules, "protocols", "Protocols",
                                           "Protocols", "ChCustPreferencesSection.html#ChCustPrefsProtocolsSection", NULL((void*)0), true1);

  prefs_register_bool_preference(protocols_module, "display_hidden_proto_items",
                                 "Display hidden protocol items",
                                 "Display all hidden protocol items in the packet list.",
                                 &prefs.display_hidden_proto_items);

  prefs_register_bool_preference(protocols_module, "display_byte_fields_with_spaces",
                                 "Display byte fields with a space character between bytes",
                                 "Display all byte fields with a space character between each byte in the packet list.",
                                 &prefs.display_byte_fields_with_spaces);

  /*
   * Note the -t /  option only affects the display of the packet timestamp
   * in the default time column; this is for all other absolute times.
   */
  prefs_register_enum_preference(protocols_module, "display_abs_time_ascii",
                                 "Format absolute times like asctime",
                                 "When to format absolute times similar to asctime instead of ISO 8601, for backwards compatibility with older Wireshark.",
                                 (int*)&prefs.display_abs_time_ascii, abs_time_format_options, false0);

  prefs_register_bool_preference(protocols_module, "enable_incomplete_dissectors_check",
                                 "Look for incomplete dissectors",
                                 "Look for dissectors that left some bytes undecoded.",
                                 &prefs.enable_incomplete_dissectors_check);

  prefs_register_bool_preference(protocols_module, "strict_conversation_tracking_heuristics",
                                 "Enable stricter conversation tracking heuristics",
                                 "Protocols may use things like VLAN ID or interface ID to narrow the potential for duplicate conversations. "
                                 "Currently ICMP and ICMPv6 use this preference to add VLAN ID to conversation tracking, and IPv4 uses this preference to take VLAN ID into account during reassembly",
                                 &prefs.strict_conversation_tracking_heuristics);

  prefs_register_bool_preference(protocols_module, "ignore_dup_frames",
                                 "Ignore duplicate frames",
                                 "Ignore frames that are exact duplicates of any previous frame.",
                                 &prefs.ignore_dup_frames);

  prefs_register_enum_preference(protocols_module, "conversation_deinterlacing_key",
                                 "Deinterlacing conversations key",
                                 "Separate into different conversations frames that look like duplicates but have different Interface, MAC, or VLAN field values.",
                                 (int *)&prefs.conversation_deinterlacing_key, conv_deint_options, false0);

  prefs_register_uint_preference(protocols_module, "ignore_dup_frames_cache_entries",
          "The max number of hashes to keep in memory for determining duplicates frames",
          "If \"Ignore duplicate frames\" is set, this setting sets the maximum number "
          "of cache entries to maintain. A 0 means no limit.",
          10, &prefs.ignore_dup_frames_cache_entries);


  /* Obsolete preferences
   * These "modules" were reorganized/renamed to correspond to their GUI
   * configuration screen within the preferences dialog
   */

  /* taps is now part of the stats module */
  prefs_register_module(prefs_top_level_modules, prefs_modules, "taps", "TAPS", "TAPS", NULL((void*)0), NULL((void*)0), false0);
  /* packet_list is now part of the protocol (parent) module */
  prefs_register_module(prefs_top_level_modules, prefs_modules, "packet_list", "PACKET_LIST", "PACKET_LIST", NULL((void*)0), NULL((void*)0), false0);
  /* stream is now part of the gui module */
  prefs_register_module(prefs_top_level_modules, prefs_modules, "stream", "STREAM", "STREAM", NULL((void*)0), NULL((void*)0), false0);

4125}

4127/* Parse through a list of comma-separated, possibly quoted strings.
 Return a list of the string data. */
4129GList *
4130prefs_get_string_list(const char *str)
4131{
  enum { PRE_STRING, IN_QUOT, NOT_IN_QUOT };

  int       state = PRE_STRING, i = 0;
  bool_Bool      backslash = false0;
  unsigned char    cur_c;
  const size_t default_size = 64;
  GString  *slstr = NULL((void*)0);
  GList    *sl = NULL((void*)0);

  /* Allocate a buffer for the first string.   */
  slstr = g_string_sized_new(default_size);

  for (;;) {
      cur_c = str[i];
      if (cur_c == '\0') {
          /* It's the end of the input, so it's the end of the string we
             were working on, and there's no more input. */
          if (state == IN_QUOT || backslash) {
              /* We were in the middle of a quoted string or backslash escape,
                 and ran out of characters; that's an error.  */
              g_string_free(slstr, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) (
(slstr), ((!(0)))) : g_string_free_and_steal (slstr)) : (g_string_free
) ((slstr), ((!(0)))));
              prefs_clear_string_list(sl);
              return NULL((void*)0);
          }
          if (slstr->len > 0)
              sl = g_list_append(sl, g_string_free(slstr, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((slstr
), ((0))) : g_string_free_and_steal (slstr)) : (g_string_free
) ((slstr), ((0)))));
          else
              g_string_free(slstr, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) (
(slstr), ((!(0)))) : g_string_free_and_steal (slstr)) : (g_string_free
) ((slstr), ((!(0)))));
          break;
      }
      if (cur_c == '"' && !backslash) {
          switch (state) {
          case PRE_STRING:
              /* We hadn't yet started processing a string; this starts the
                 string, and we're now quoting.  */
              state = IN_QUOT;
              break;
          case IN_QUOT:
              /* We're in the middle of a quoted string, and we saw a quotation
                 mark; we're no longer quoting.   */
              state = NOT_IN_QUOT;
              break;
          case NOT_IN_QUOT:
              /* We're working on a string, but haven't seen a quote; we're
                 now quoting.  */
              state = IN_QUOT;
              break;
          default:
              break;
          }
      } else if (cur_c == '\\' && !backslash) {
          /* We saw a backslash, and the previous character wasn't a
             backslash; escape the next character.

             This also means we've started a new string. */
          backslash = true1;
          if (state == PRE_STRING)
              state = NOT_IN_QUOT;
      } else if (cur_c == ',' && state != IN_QUOT && !backslash) {
          /* We saw a comma, and we're not in the middle of a quoted string
             and it wasn't preceded by a backslash; it's the end of
             the string we were working on...  */
          if (slstr->len > 0) {
              sl = g_list_append(sl, g_string_free(slstr, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((slstr
), ((0))) : g_string_free_and_steal (slstr)) : (g_string_free
) ((slstr), ((0)))));
              slstr = g_string_sized_new(default_size);
          }

          /* ...and the beginning of a new string.  */
          state = PRE_STRING;
      } else if (!g_ascii_isspace(cur_c)((g_ascii_table[(guchar) (cur_c)] & G_ASCII_SPACE) != 0) || state != PRE_STRING) {
          /* Either this isn't a white-space character, or we've started a
             string (i.e., already seen a non-white-space character for that
             string and put it into the string).

             The character is to be put into the string; do so.  */
          g_string_append_c(slstr, cur_c)g_string_append_c_inline (slstr, cur_c);

          /* If it was backslash-escaped, we're done with the backslash escape.  */
          backslash = false0;
      }
      i++;
  }
  return(sl);
4215}

4217char *join_string_list(GList *sl)
4218{
  GString      *joined_str = g_string_new("");
  GList        *cur, *first;
  char         *str;
  unsigned      item_count = 0;

  cur = first = g_list_first(sl);
  while (cur) {
      item_count++;
      str = (char *)cur->data;

      if (cur != first)
          g_string_append_c(joined_str, ',')g_string_append_c_inline (joined_str, ',');

      if (item_count % 2) {
          /* Wrap the line.  */
          g_string_append(joined_str, "\n\t")(__builtin_constant_p ("\n\t") ? __extension__ ({ const char *
 const __val = ("\n\t"); g_string_append_len_inline (joined_str
, __val, (__val != ((void*)0)) ? (gssize) strlen (((__val) + !
(__val))) : (gssize) -1); }) : g_string_append_len_inline (joined_str
, "\n\t", (gssize) -1));
      } else
          g_string_append_c(joined_str, ' ')g_string_append_c_inline (joined_str, ' ');

      g_string_append_c(joined_str, '"')g_string_append_c_inline (joined_str, '"');
      while (*str) {
          gunichar uc = g_utf8_get_char (str);

          if (uc == '"' || uc == '\\')
              g_string_append_c(joined_str, '\\')g_string_append_c_inline (joined_str, '\\');

          if (g_unichar_isprint(uc))
              g_string_append_unichar (joined_str, uc);

          str = g_utf8_next_char (str)(char *)((str) + g_utf8_skip[*(const guchar *)(str)]);
      }

      g_string_append_c(joined_str, '"')g_string_append_c_inline (joined_str, '"');

      cur = cur->next;
  }
  return g_string_free(joined_str, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((joined_str
), ((0))) : g_string_free_and_steal (joined_str)) : (g_string_free
) ((joined_str), ((0))));
4256}

4258void
4259prefs_clear_string_list(GList *sl)
4260{
  g_list_free_full(sl, g_free);
4262}

4264/*
* Takes a string, a pointer to an array of "enum_val_t"s, and a default int
* value.
* The array must be terminated by an entry with a null "name" string.
*
* If the string matches a "name" string in an entry, the value from that
* entry is returned.
*
* Otherwise, if a string matches a "description" string in an entry, the
* value from that entry is returned; we do that for backwards compatibility,
* as we used to have only a "name" string that was used both for command-line
* and configuration-file values and in the GUI (which meant either that
* the GUI had what might be somewhat cryptic values to select from or that
* the "-o" flag took long strings, often with spaces in them).
*
* Otherwise, the default value that was passed as the third argument is
* returned.
*/
4282static int
4283find_val_for_string(const char *needle, const enum_val_t *haystack,
                  int default_value)
4285{
  int i;

  for (i = 0; haystack[i].name != NULL((void*)0); i++) {
      if (g_ascii_strcasecmp(needle, haystack[i].name) == 0) {
          return haystack[i].value;
      }
  }
  for (i = 0; haystack[i].name != NULL((void*)0); i++) {
      if (g_ascii_strcasecmp(needle, haystack[i].description) == 0) {
          return haystack[i].value;
      }
  }
  return default_value;
4299}

4301/* Preferences file format:
* - Configuration directives start at the beginning of the line, and
*   are terminated with a colon.
* - Directives can be continued on the next line by preceding them with
*   whitespace.
*
* Example:

4309# This is a comment line
4310print.command: lpr
4311print.file: /a/very/long/path/
          to/wireshark-out.ps
*
*/

4316/*
* Initialize non-dissector preferences used by the "register preference" API
* to default values so the default values can be used when registered.
*
* String, filename, and directory preferences will be g_freed so they must
* be g_mallocated.
*/
4323static void
4324prefs_set_global_defaults(wmem_allocator_t* pref_scope, const char** col_fmt, int num_cols)
4325{
  int         i;
  char        *col_name;
  fmt_data    *cfmt;

  prefs.restore_filter_after_following_stream = false0;
  prefs.gui_toolbar_main_style = TB_STYLE_ICONS0;
  /* We try to find the best font in the Qt code */
  wmem_free(pref_scope, prefs.gui_font_name);
  prefs.gui_font_name              = wmem_strdup(pref_scope, "");
  prefs.gui_active_fg.red          =         0;
  prefs.gui_active_fg.green        =         0;
  prefs.gui_active_fg.blue         =         0;
  prefs.gui_active_bg.red          =     52223;
  prefs.gui_active_bg.green        =     59647;
  prefs.gui_active_bg.blue         =     65535;
  prefs.gui_active_style           = COLOR_STYLE_DEFAULT0;
  prefs.gui_inactive_fg.red        =         0;
  prefs.gui_inactive_fg.green      =         0;
  prefs.gui_inactive_fg.blue       =         0;
  prefs.gui_inactive_bg.red        =     61439;
  prefs.gui_inactive_bg.green      =     61439;
  prefs.gui_inactive_bg.blue       =     61439;
  prefs.gui_inactive_style         = COLOR_STYLE_DEFAULT0;
  prefs.gui_marked_fg.red          =     65535;
  prefs.gui_marked_fg.green        =     65535;
  prefs.gui_marked_fg.blue         =     65535;
  prefs.gui_marked_bg.red          =         0;
  prefs.gui_marked_bg.green        =      8224;
  prefs.gui_marked_bg.blue         =     10794;
  prefs.gui_ignored_fg.red         =     32767;
  prefs.gui_ignored_fg.green       =     32767;
  prefs.gui_ignored_fg.blue        =     32767;
  prefs.gui_ignored_bg.red         =     65535;
  prefs.gui_ignored_bg.green       =     65535;
  prefs.gui_ignored_bg.blue        =     65535;
  wmem_free(pref_scope, prefs.gui_colorized_fg);
  prefs.gui_colorized_fg           = wmem_strdup(pref_scope, "000000,000000,000000,000000,000000,000000,000000,000000,000000,000000");
  wmem_free(pref_scope, prefs.gui_colorized_bg);
  prefs.gui_colorized_bg           = wmem_strdup(pref_scope, "ffc0c0,ffc0ff,e0c0e0,c0c0ff,c0e0e0,c0ffff,c0ffc0,ffffc0,e0e0c0,e0e0e0");
  prefs.st_client_fg.red           = 32767;
  prefs.st_client_fg.green         =     0;
  prefs.st_client_fg.blue          =     0;
  prefs.st_client_bg.red           = 64507;
  prefs.st_client_bg.green         = 60909;
  prefs.st_client_bg.blue          = 60909;
  prefs.st_server_fg.red           =     0;
  prefs.st_server_fg.green         =     0;
  prefs.st_server_fg.blue          = 32767;
  prefs.st_server_bg.red           = 60909;
  prefs.st_server_bg.green         = 60909;
  prefs.st_server_bg.blue          = 64507;

  if (gui_theme_is_dark) {
      // Green, red and yellow with HSV V = 84
      prefs.gui_filter_valid_bg.red         = 0x0000; /* dark green */
      prefs.gui_filter_valid_bg.green       = 0x66ff;
      prefs.gui_filter_valid_bg.blue        = 0x0000;
      prefs.gui_filter_valid_fg.red         = 0xFFFF;
      prefs.gui_filter_valid_fg.green       = 0xFFFF;
      prefs.gui_filter_valid_fg.blue        = 0xFFFF;
      prefs.gui_filter_invalid_bg.red       = 0x66FF; /* dark red */
      prefs.gui_filter_invalid_bg.green     = 0x0000;
      prefs.gui_filter_invalid_bg.blue      = 0x0000;
      prefs.gui_filter_invalid_fg.red       = 0xFFFF;
      prefs.gui_filter_invalid_fg.green     = 0xFFFF;
      prefs.gui_filter_invalid_fg.blue      = 0xFFFF;
      prefs.gui_filter_deprecated_bg.red    = 0x66FF; /* dark yellow / olive */
      prefs.gui_filter_deprecated_bg.green  = 0x66FF;
      prefs.gui_filter_deprecated_bg.blue   = 0x0000;
      prefs.gui_filter_deprecated_fg.red    = 0xFFFF;
      prefs.gui_filter_deprecated_fg.green  = 0xFFFF;
      prefs.gui_filter_deprecated_fg.blue   = 0xFFFF;
  } else {
      // Green, red and yellow with HSV V = 20
      prefs.gui_filter_valid_bg.red         = 0xAFFF; /* light green */
      prefs.gui_filter_valid_bg.green       = 0xFFFF;
      prefs.gui_filter_valid_bg.blue        = 0xAFFF;
      prefs.gui_filter_valid_fg.red         = 0x0000;
      prefs.gui_filter_valid_fg.green       = 0x0000;
      prefs.gui_filter_valid_fg.blue        = 0x0000;
      prefs.gui_filter_invalid_bg.red       = 0xFFFF; /* light red */
      prefs.gui_filter_invalid_bg.green     = 0xAFFF;
      prefs.gui_filter_invalid_bg.blue      = 0xAFFF;
      prefs.gui_filter_invalid_fg.red       = 0x0000;
      prefs.gui_filter_invalid_fg.green     = 0x0000;
      prefs.gui_filter_invalid_fg.blue      = 0x0000;
      prefs.gui_filter_deprecated_bg.red    = 0xFFFF; /* light yellow */
      prefs.gui_filter_deprecated_bg.green  = 0xFFFF;
      prefs.gui_filter_deprecated_bg.blue   = 0xAFFF;
      prefs.gui_filter_deprecated_fg.red    = 0x0000;
      prefs.gui_filter_deprecated_fg.green  = 0x0000;
      prefs.gui_filter_deprecated_fg.blue   = 0x0000;
  }

  prefs.gui_geometry_save_position = true1;
  prefs.gui_geometry_save_size     = true1;
  prefs.gui_geometry_save_maximized= true1;
  prefs.gui_fileopen_style         = FO_STYLE_LAST_OPENED0;
  prefs.gui_recent_df_entries_max  = 10;
  prefs.gui_recent_files_count_max = 10;
  wmem_free(pref_scope, prefs.gui_fileopen_dir);
  prefs.gui_fileopen_dir           = wmem_strdup(pref_scope, get_persdatafile_dir());
  prefs.gui_fileopen_preview       = 3;
  wmem_free(pref_scope, prefs.gui_tlskeylog_command);
  prefs.gui_tlskeylog_command      = wmem_strdup(pref_scope, "");
  prefs.gui_ask_unsaved            = true1;
  prefs.gui_autocomplete_filter    = true1;
  prefs.gui_find_wrap              = true1;
  prefs.gui_update_enabled         = true1;
  prefs.gui_update_channel         = UPDATE_CHANNEL_STABLE;
  prefs.gui_update_interval        = 60*60*24; /* Seconds */
  prefs.gui_debounce_timer         = 400; /* milliseconds */
  wmem_free(pref_scope, prefs.gui_window_title);
  prefs.gui_window_title           = wmem_strdup(pref_scope, "");
  wmem_free(pref_scope, prefs.gui_prepend_window_title);
  prefs.gui_prepend_window_title   = wmem_strdup(pref_scope, "");
  wmem_free(pref_scope, prefs.gui_start_title);
  prefs.gui_start_title            = wmem_strdup(pref_scope, "The World's Most Popular Network Protocol Analyzer");
  prefs.gui_version_placement      = version_both;
  prefs.gui_welcome_page_show_recent = true1;
  prefs.gui_layout_type            = layout_type_2;
  prefs.gui_layout_content_1       = layout_pane_content_plist;
  prefs.gui_layout_content_2       = layout_pane_content_pdetails;
  prefs.gui_layout_content_3       = layout_pane_content_pbytes;
  prefs.gui_packet_list_elide_mode = ELIDE_RIGHT;
  prefs.gui_packet_list_copy_format_options_for_keyboard_shortcut = COPY_FORMAT_TEXT;
  prefs.gui_packet_list_copy_text_with_aligned_columns = false0;
  prefs.gui_packet_list_show_related = true1;
  prefs.gui_packet_list_show_minimap = true1;
  prefs.gui_packet_list_sortable     = true1;
  prefs.gui_packet_list_cached_rows_max = 10000;
  wmem_free(pref_scope, prefs.gui_interfaces_hide_types);
  prefs.gui_interfaces_hide_types = wmem_strdup(pref_scope, "");
  prefs.gui_interfaces_show_hidden = false0;
  prefs.gui_interfaces_remote_display = true1;
  prefs.gui_packet_list_separator = false0;
  prefs.gui_packet_header_column_definition = true1;
  prefs.gui_packet_list_hover_style = true1;
  prefs.gui_show_selected_packet = false0;
  prefs.gui_show_file_load_time = false0;
  prefs.gui_max_export_objects     = 1000;
  prefs.gui_max_tree_items = 1 * 1000 * 1000;
  prefs.gui_max_tree_depth = 5 * 100;
  prefs.gui_decimal_places1 = DEF_GUI_DECIMAL_PLACES12;
  prefs.gui_decimal_places2 = DEF_GUI_DECIMAL_PLACES24;
  prefs.gui_decimal_places3 = DEF_GUI_DECIMAL_PLACES36;

  if (prefs.col_list) {
      free_col_info(prefs.col_list);
      prefs.col_list = NULL((void*)0);
  }
  for (i = 0; i < num_cols; i++) {
      cfmt = g_new0(fmt_data,1)((fmt_data *) g_malloc0_n ((1), sizeof (fmt_data)));
      cfmt->title = g_strdup(col_fmt[i * 2])g_strdup_inline (col_fmt[i * 2]);
      cfmt->visible = true1;
      cfmt->display = COLUMN_DISPLAY_STRINGS'R';
      parse_column_format(cfmt, col_fmt[(i * 2) + 1]);
      prefs.col_list = g_list_append(prefs.col_list, cfmt);
  }
  prefs.num_cols  = num_cols;

4487/* set the default values for the capture dialog box */
  prefs.capture_prom_mode             = true1;
  prefs.capture_monitor_mode          = false0;
  prefs.capture_pcap_ng               = true1;
  prefs.capture_real_time             = true1;
  prefs.capture_update_interval       = DEFAULT_UPDATE_INTERVAL100;
  prefs.capture_no_extcap             = false0;
  prefs.capture_show_info             = false0;
  prefs.enable_aggregation            = false0;

  if (!prefs.capture_columns) {
      /* First time through */
      for (i = 0; i < num_capture_cols; i++) {
          col_name = g_strdup(capture_cols[i])g_strdup_inline (capture_cols[i]);
          prefs.capture_columns = g_list_append(prefs.capture_columns, col_name);
      }
  }

4505/* set the default values for the tap/statistics dialog box */
  prefs.tap_update_interval    = TAP_UPDATE_DEFAULT_INTERVAL3000;
  prefs.flow_graph_max_export_items = 1000;
  prefs.st_enable_burstinfo = true1;
  prefs.st_burst_showcount = false0;
  prefs.st_burst_resolution = ST_DEF_BURSTRES5;
  prefs.st_burst_windowlen = ST_DEF_BURSTLEN100;
  prefs.st_sort_casesensitve = true1;
  prefs.st_sort_rng_fixorder = true1;
  prefs.st_sort_rng_nameonly = true1;
  prefs.st_sort_defcolflag = ST_SORT_COL_COUNT2;
  prefs.st_sort_defdescending = true1;
  prefs.st_sort_showfullname = false0;
  prefs.conv_machine_readable = false0;

  /* protocols */
  prefs.display_hidden_proto_items = false0;
  prefs.display_byte_fields_with_spaces = false0;
  prefs.display_abs_time_ascii = ABS_TIME_ASCII_TREE;
  prefs.ignore_dup_frames = false0;
  prefs.ignore_dup_frames_cache_entries = 10000;

  /* set the default values for the io graph dialog */
  prefs.gui_io_graph_automatic_update = true1;
  prefs.gui_io_graph_enable_legend = true1;

  /* set the default values for the plot dialog */
  prefs.gui_plot_automatic_update = true1;
  prefs.gui_plot_enable_legend = true1;
  prefs.gui_plot_enable_auto_scroll = false0;

  /* set the default values for the packet dialog */
  prefs.gui_packet_dialog_layout   = layout_vertical;
  prefs.gui_packet_details_show_byteview = true1;
4539}

4541/*
* Reset a single dissector preference.
*/
4544void
4545reset_pref(pref_t *pref)
4546{
  if (!pref) return;

  /*
   * This preference is no longer supported; it's not a
   * real preference, so we don't reset it (i.e., we
   * treat it as if it weren't found in the list of
   * preferences, and we weren't called in the first place).
   */
  if (pref->obsolete)
      return;

  switch (pref->type) {

  case PREF_UINT:
      *pref->varp.uint = pref->default_val.uint;
      break;

  case PREF_INT:
      *pref->varp.intp = pref->default_val.intval;
      break;

  case PREF_FLOAT:
      *pref->varp.floatp = pref->default_val.floatval;
      break;

  case PREF_BOOL:
      *pref->varp.boolp = pref->default_val.boolval;
      break;

  case PREF_ENUM:
  case PREF_PROTO_TCP_SNDAMB_ENUM:
      *pref->varp.enump = pref->default_val.enumval;
      break;

  case PREF_STRING:
  case PREF_SAVE_FILENAME:
  case PREF_OPEN_FILENAME:
  case PREF_DIRNAME:
  case PREF_PASSWORD:
  case PREF_DISSECTOR:
      reset_string_like_preference(pref);
      break;

  case PREF_RANGE:
  case PREF_DECODE_AS_RANGE:
      wmem_free(pref->scope, *pref->varp.range);
      *pref->varp.range = range_copy(pref->scope, pref->default_val.range);
      break;

  case PREF_STATIC_TEXT:
  case PREF_UAT:
      /* Nothing to do */
      break;

  case PREF_COLOR:
      *pref->varp.colorp = pref->default_val.color;
      break;

  case PREF_CUSTOM:
      pref->custom_cbs.reset_cb(pref);
      break;
  }
4609}

4611static void
4612reset_pref_cb(void *data, void *user_data)
4613{
  pref_t *pref = (pref_t *) data;
  module_t *module = (module_t *)user_data;

  if (pref && (pref->type == PREF_RANGE || pref->type == PREF_DECODE_AS_RANGE)) {
      /*
       * Some dissectors expect the range (returned via prefs_get_range_value)
       * to remain valid if it has not changed. If it did change, then we
       * should set "prefs_changed_flags" to ensure that the preference apply
       * callback is invoked. That callback will notify dissectors that it
       * should no longer assume the range to be valid.
       */
      if (ranges_are_equal(*pref->varp.range, pref->default_val.range)) {
          /* Optimization: do not invoke apply callback if nothing changed. */
          return;
      }
      module->prefs_changed_flags |= prefs_get_effect_flags(pref);
  }
  reset_pref(pref);
4632}

4634/*
* Reset all preferences for a module.
*/
4637static bool_Bool
4638reset_module_prefs(const void *key _U___attribute__((unused)), void *value, void *data _U___attribute__((unused)))
4639{
  module_t *module = (module_t *)value;
  g_list_foreach(module->prefs, reset_pref_cb, module);
  return false0;
4643}

4645/* Reset preferences */
4646void
4647prefs_reset(const char* app_env_var_prefix, const char** col_fmt, int num_cols)
4648{
  g_free(prefs.saved_at_version);
  prefs.saved_at_version = NULL((void*)0);

  /*
   * Unload all UAT preferences.
   */
  uat_unload_all();

  /*
   * Unload any loaded MIBs.
   */
  oids_cleanup();

  /*
   * Reload all UAT preferences.
   */
  uat_load_all(app_env_var_prefix);

  /*
   * Reset the non-dissector preferences.
   */
  prefs_set_global_defaults(wmem_epan_scope(), col_fmt, num_cols);

  /*
   * Reset the non-UAT dissector preferences.
   */
  wmem_tree_foreach(prefs_modules, reset_module_prefs, NULL((void*)0));
4676}

4678#ifdef _WIN32
4679static void
4680read_registry(void)
4681{
  HKEY hTestKey;
  DWORD data;
  DWORD data_size = sizeof(DWORD);
  DWORD ret;

  ret = RegOpenKeyExA(HKEY_CURRENT_USER, REG_HKCU_WIRESHARK_KEY"Software\\Wireshark", 0, KEY_READ, &hTestKey);
  if (ret != ERROR_SUCCESS && ret != ERROR_FILE_NOT_FOUND) {
      ws_noisy("Cannot open HKCU "REG_HKCU_WIRESHARK_KEY": 0x%lx", ret)do { if (1) { ws_log_full("Epan", LOG_LEVEL_NOISY, "epan/prefs.c"
, 4689, __func__, "Cannot open HKCU ""Software\\Wireshark"": 0x%lx"
, ret); } } while (0);
      return;
  }

  ret = RegQueryValueExA(hTestKey, LOG_HKCU_CONSOLE_OPEN"ConsoleOpen", NULL((void*)0), NULL((void*)0), (LPBYTE)&data, &data_size);
  if (ret == ERROR_SUCCESS) {
      ws_log_console_open = (ws_log_console_open_pref)data;
      ws_noisy("Got "LOG_HKCU_CONSOLE_OPEN" from Windows registry: %d", ws_log_console_open)do { if (1) { ws_log_full("Epan", LOG_LEVEL_NOISY, "epan/prefs.c"
, 4696, __func__, "Got ""ConsoleOpen"" from Windows registry: %d"
, ws_log_console_open); } } while (0);
  }
  else if (ret != ERROR_FILE_NOT_FOUND) {
      ws_noisy("Error reading registry key "LOG_HKCU_CONSOLE_OPEN": 0x%lx", ret)do { if (1) { ws_log_full("Epan", LOG_LEVEL_NOISY, "epan/prefs.c"
, 4699, __func__, "Error reading registry key ""ConsoleOpen"": 0x%lx"
, ret); } } while (0);
  }

  RegCloseKey(hTestKey);
4703}
4704#endif

4706void
4707prefs_read_module(const char *module, const char* app_env_var_prefix)
4708{
  int         err;
  char        *pf_path;
  FILE        *pf;

  module_t *target_module = prefs_find_module(module);
  if (!target_module) {
      return;
  }

  /* Construct the pathname of the user's preferences file for the module. */
  char *pf_name = wmem_strdup_printf(NULL((void*)0), "%s.cfg", module);
  pf_path = get_persconffile_path(pf_name, true1, app_env_var_prefix);
  wmem_free(NULL((void*)0), pf_name);

  /* Read the user's module preferences file, if it exists and is not a dir. */
  if (!test_for_regular_file(pf_path) || ((pf = ws_fopenfopen(pf_path, "r")) == NULL((void*)0))) {
      g_free(pf_path);
      /* Fall back to the user's generic preferences file. */
      pf_path = get_persconffile_path(PF_NAME"preferences", true1, app_env_var_prefix);
      pf = ws_fopenfopen(pf_path, "r");
  }

  if (pf != NULL((void*)0)) {
      /* We succeeded in opening it; read it. */
      err = read_prefs_file(pf_path, pf, set_pref, target_module);
      if (err != 0) {
          /* We had an error reading the file; report it. */
          report_warning("Error reading your preferences file \"%s\": %s.",
                         pf_path, g_strerror(err));
      } else
          g_free(pf_path);
      fclose(pf);
  } else {
      /* We failed to open it.  If we failed for some reason other than
         "it doesn't exist", return the errno and the pathname, so our
         caller can report the error. */
      if (errno(*__errno_location ()) != ENOENT2) {
          report_warning("Can't open your preferences file \"%s\": %s.",
                         pf_path, g_strerror(errno(*__errno_location ())));
      } else
          g_free(pf_path);
  }

  return;
4753}

4755/* Read the preferences file, fill in "prefs", and return a pointer to it.

 If we got an error (other than "it doesn't exist") we report it through
 the UI. */
4759e_prefs *
4760read_prefs(const char* app_env_var_prefix)
4761{
  int         err;
  char        *pf_path;
  FILE        *pf;

  /* clean up libsmi structures before reading prefs */
  oids_cleanup();

4769#ifdef _WIN32
  read_registry();
4771#endif

  /*
   * If we don't already have the pathname of the global preferences
   * file, construct it.  Then, in either case, try to open the file.
   */
  if (gpf_path == NULL((void*)0)) {
      /*
       * We don't have the path; try the new path first, and, if that
       * file doesn't exist, try the old path.
       */
      gpf_path = get_datafile_path(PF_NAME"preferences", app_env_var_prefix);
      if ((pf = ws_fopenfopen(gpf_path, "r")) == NULL((void*)0) && errno(*__errno_location ()) == ENOENT2) {
          /*
           * It doesn't exist by the new name; try the old name.
           */
          g_free(gpf_path);
          gpf_path = get_datafile_path(OLD_GPF_NAME"wireshark.conf", app_env_var_prefix);
          pf = ws_fopenfopen(gpf_path, "r");
      }
  } else {
      /*
       * We have the path; try it.
       */
      pf = ws_fopenfopen(gpf_path, "r");
  }

  /*
   * If we were able to open the file, read it.
   * XXX - if it failed for a reason other than "it doesn't exist",
   * report the error.
   */
  if (pf != NULL((void*)0)) {
      /* We succeeded in opening it; read it. */
      err = read_prefs_file(gpf_path, pf, set_pref, NULL((void*)0));
      if (err != 0) {
          /* We had an error reading the file; report it. */
          report_warning("Error reading global preferences file \"%s\": %s.",
                         gpf_path, g_strerror(err));
      }
      fclose(pf);
  } else {
      /* We failed to open it.  If we failed for some reason other than
         "it doesn't exist", report the error. */
      if (errno(*__errno_location ()) != ENOENT2) {
          if (errno(*__errno_location ()) != 0) {
              report_warning("Can't open global preferences file \"%s\": %s.",
                             gpf_path, g_strerror(errno(*__errno_location ())));
          }
      }
  }

  /* Construct the pathname of the user's preferences file. */
  pf_path = get_persconffile_path(PF_NAME"preferences", true1, app_env_var_prefix);

  /* Read the user's preferences file, if it exists. */
  if ((pf = ws_fopenfopen(pf_path, "r")) != NULL((void*)0)) {

      /* We succeeded in opening it; read it. */
      err = read_prefs_file(pf_path, pf, set_pref, NULL((void*)0));
      if (err != 0) {
          /* We had an error reading the file; report it. */
          report_warning("Error reading your preferences file \"%s\": %s.",
                         pf_path, g_strerror(err));
      } else
          g_free(pf_path);
      fclose(pf);
  } else {
      /* We failed to open it.  If we failed for some reason other than
         "it doesn't exist", return the errno and the pathname, so our
         caller can report the error. */
      if (errno(*__errno_location ()) != ENOENT2) {
          report_warning("Can't open your preferences file \"%s\": %s.",
                         pf_path, g_strerror(errno(*__errno_location ())));
      } else
          g_free(pf_path);
  }

  /* load SMI modules if needed */
  oids_init(app_env_var_prefix);

  return &prefs;
4853}

4855/* read the preferences file (or similar) and call the callback
* function to set each key/value pair found */
4857int
4858read_prefs_file(const char *pf_path, FILE *pf,
              pref_set_pair_cb pref_set_pair_fct, void *private_data)
4860{
  enum {
      START,    /* beginning of a line */
      IN_VAR,   /* processing key name */
      PRE_VAL,  /* finished processing key name, skipping white space before value */
      IN_VAL,   /* processing value */
      IN_SKIP   /* skipping to the end of the line */
  } state = START;
  int       got_c;
  GString  *cur_val;
  GString  *cur_var;
  bool_Bool      got_val = false0;
  int       fline = 1, pline = 1;
  char      hint[] = "(save preferences to remove this warning)";
  char      ver[128];

  cur_val = g_string_new("");
  cur_var = g_string_new("");

  /* Try to read in the profile name in the first line of the preferences file. */
  if (fscanf(pf, "# Configuration file for %127[^\r\n]", ver) == 1) {
1
Assuming the condition is false→
2
←
Taking false branch→
      /* Assume trailing period and remove it */
      g_free(prefs.saved_at_version);
      prefs.saved_at_version = g_strndup(ver, strlen(ver) - 1);
  }
  rewind(pf);
3
←
After calling 'rewind' reading 'errno' is required to find out if the call has failed→

  while ((got_c = ws_getc_unlockedgetc_unlocked(pf)) != EOF(-1)) {
4
←
Value of 'errno' was not checked and may be overwritten by function 'getc_unlocked'
      if (got_c == '\r') {
          /* Treat CR-LF at the end of a line like LF, so that if we're reading
           * a Windows-format file on UN*X, we handle it the same way we'd handle
           * a UN*X-format file. */
          got_c = ws_getc_unlockedgetc_unlocked(pf);
          if (got_c == EOF(-1))
              break;
          if (got_c != '\n') {
              /* Put back the character after the CR, and process the CR normally. */
              ungetc(got_c, pf);
              got_c = '\r';
          }
      }
      if (got_c == '\n') {
          state = START;
          fline++;
          continue;
      }

      switch (state) {
      case START:
          if (g_ascii_isalnum(got_c)((g_ascii_table[(guchar) (got_c)] & G_ASCII_ALNUM) != 0)) {
              if (cur_var->len > 0) {
                  if (got_val) {
                      if (cur_val->len > 0) {
                          if (cur_val->str[cur_val->len-1] == ',') {
                              /*
                               * If the pref has a trailing comma, eliminate it.
                               */
                              cur_val->str[cur_val->len-1] = '\0';
                              ws_warning("%s line %d: trailing comma in \"%s\" %s", pf_path, pline, cur_var->str, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 4918, __func__, "%s line %d: trailing comma in \"%s\" %s", pf_path
, pline, cur_var->str, hint); } } while (0);
                          }
                      }
                      /* Call the routine to set the preference; it will parse
                         the value as appropriate.

                         Since we're reading a file, rather than processing
                         explicit user input, for range preferences, silently
                         lower values in excess of the range's maximum, rather
                         than reporting errors and failing. */
                      switch (pref_set_pair_fct(cur_var->str, cur_val->str, private_data, false0)) {

                      case PREFS_SET_OK:
                          break;

                      case PREFS_SET_SYNTAX_ERR:
                          report_warning("Syntax error in preference \"%s\" at line %d of\n%s %s",
                                     cur_var->str, pline, pf_path, hint);
                          break;

                      case PREFS_SET_NO_SUCH_PREF:
                          ws_warning("No such preference \"%s\" at line %d of\n%s %s",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 4940, __func__, "No such preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0)
                                     cur_var->str, pline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 4940, __func__, "No such preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0);
                          break;

                      case PREFS_SET_OBSOLETE:
                          /*
                           * If an attempt is made to save the
                           * preferences, a popup warning will be
                           * displayed stating that obsolete prefs
                           * have been detected and the user will
                           * be given the opportunity to save these
                           * prefs under a different profile name.
                           * The prefs in question need to be listed
                           * in the console window so that the
                           * user can make an informed choice.
                           */
                          ws_warning("Obsolete preference \"%s\" at line %d of\n%s %s",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 4956, __func__, "Obsolete preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0)
                                     cur_var->str, pline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 4956, __func__, "Obsolete preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0);
                          break;
                      }
                  } else {
                      ws_warning("Incomplete preference at line %d: of\n%s %s", pline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 4960, __func__, "Incomplete preference at line %d: of\n%s %s"
, pline, pf_path, hint); } } while (0);
                  }
              }
              state      = IN_VAR;
              got_val    = false0;
              g_string_truncate(cur_var, 0)g_string_truncate_inline (cur_var, 0);
              g_string_append_c(cur_var, (char) got_c)g_string_append_c_inline (cur_var, (char) got_c);
              pline = fline;
          } else if (g_ascii_isspace(got_c)((g_ascii_table[(guchar) (got_c)] & G_ASCII_SPACE) != 0) && cur_var->len > 0 && got_val) {
              state = PRE_VAL;
          } else if (got_c == '#') {
              state = IN_SKIP;
          } else {
              ws_warning("Malformed preference at line %d of\n%s %s", fline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 4973, __func__, "Malformed preference at line %d of\n%s %s"
, fline, pf_path, hint); } } while (0);
          }
          break;
      case IN_VAR:
          if (got_c != ':') {
              g_string_append_c(cur_var, (char) got_c)g_string_append_c_inline (cur_var, (char) got_c);
          } else {
              /* This is a colon (':') */
              state   = PRE_VAL;
              g_string_truncate(cur_val, 0)g_string_truncate_inline (cur_val, 0);
              /*
               * Set got_val to true to accommodate prefs such as
               * "gui.fileopen.dir" that do not require a value.
               */
              got_val = true1;
          }
          break;
      case PRE_VAL:
          if (!g_ascii_isspace(got_c)((g_ascii_table[(guchar) (got_c)] & G_ASCII_SPACE) != 0)) {
              state = IN_VAL;
              g_string_append_c(cur_val, (char) got_c)g_string_append_c_inline (cur_val, (char) got_c);
          }
          break;
      case IN_VAL:
          g_string_append_c(cur_val, (char) got_c)g_string_append_c_inline (cur_val, (char) got_c);
          break;
      case IN_SKIP:
          break;
      }
  }
  if (cur_var->len > 0) {
      if (got_val) {
          /* Call the routine to set the preference; it will parse
             the value as appropriate.

             Since we're reading a file, rather than processing
             explicit user input, for range preferences, silently
             lower values in excess of the range's maximum, rather
             than reporting errors and failing. */
          switch (pref_set_pair_fct(cur_var->str, cur_val->str, private_data, false0)) {

          case PREFS_SET_OK:
              break;

          case PREFS_SET_SYNTAX_ERR:
              ws_warning("Syntax error in preference %s at line %d of\n%s %s",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5019, __func__, "Syntax error in preference %s at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0)
                         cur_var->str, pline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5019, __func__, "Syntax error in preference %s at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0);
              break;

          case PREFS_SET_NO_SUCH_PREF:
              ws_warning("No such preference \"%s\" at line %d of\n%s %s",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5024, __func__, "No such preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0)
                         cur_var->str, pline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5024, __func__, "No such preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0);
              break;

          case PREFS_SET_OBSOLETE:
              ws_warning("Obsolete preference \"%s\" at line %d of\n%s %s",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5029, __func__, "Obsolete preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0)
                  cur_var->str, pline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5029, __func__, "Obsolete preference \"%s\" at line %d of\n%s %s"
, cur_var->str, pline, pf_path, hint); } } while (0);
              break;
          }
      } else {
          ws_warning("Incomplete preference at line %d of\n%s %s",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5034, __func__, "Incomplete preference at line %d of\n%s %s"
, pline, pf_path, hint); } } while (0)
                     pline, pf_path, hint)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5034, __func__, "Incomplete preference at line %d of\n%s %s"
, pline, pf_path, hint); } } while (0);
      }
  }

  g_string_free(cur_val, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) (
(cur_val), ((!(0)))) : g_string_free_and_steal (cur_val)) : (
g_string_free) ((cur_val), ((!(0)))));
  g_string_free(cur_var, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) (
(cur_var), ((!(0)))) : g_string_free_and_steal (cur_var)) : (
g_string_free) ((cur_var), ((!(0)))));

  if (ferror(pf))
      return errno(*__errno_location ());
  else
      return 0;
5045}

5047/*
* If we were handed a preference starting with "uat:", try to turn it into
* a valid uat entry.
*/
5051static bool_Bool
5052prefs_set_uat_pref(char *uat_entry, char **errmsg) {
  char *p, *colonp;
  uat_t *uat;
  bool_Bool ret;

  colonp = strchr(uat_entry, ':');
  if (colonp == NULL((void*)0))
      return false0;

  p = colonp;
  *p++ = '\0';

  /*
   * Skip over any white space (there probably won't be any, but
   * as we allow it in the preferences file, we might as well
   * allow it here).
   */
  while (g_ascii_isspace(*p)((g_ascii_table[(guchar) (*p)] & G_ASCII_SPACE) != 0))
      p++;
  if (*p == '\0') {
      /*
       * Put the colon back, so if our caller uses, in an
       * error message, the string they passed us, the message
       * looks correct.
       */
      *colonp = ':';
      return false0;
  }

  uat = uat_find(uat_entry);
  *colonp = ':';
  if (uat == NULL((void*)0)) {
      *errmsg = g_strdup("Unknown preference")g_strdup_inline ("Unknown preference");
      return false0;
  }

  ret = uat_load_str(uat, p, errmsg);
  return ret;
5090}

5092char *
5093prefs_sanitize_string(const char* str)
5094{
  char *sanitized;
  if (!prefs_regex) {
      prefs_regex = g_regex_new("\\s*\\R\\s*", (GRegexCompileFlags)G_REGEX_OPTIMIZE,
          (GRegexMatchFlags)G_REGEX_MATCH_BSR_ANYCRLF, NULL((void*)0));
  } else {
      g_regex_ref(prefs_regex);
  }
  sanitized = g_regex_replace(prefs_regex, str, -1, 0, " ", G_REGEX_MATCH_DEFAULT, NULL((void*)0));
  g_regex_unref(prefs_regex);
  return sanitized;
5105}

5107/*
* Given a string of the form "<pref name>:<pref value>", as might appear
* as an argument to a "-o" option, parse it and set the preference in
* question.  Return an indication of whether it succeeded or failed
* in some fashion.
*/
5113prefs_set_pref_e
5114prefs_set_pref(char *prefarg, char **errmsg)
5115{
  char *p, *colonp;
  prefs_set_pref_e ret;

  *errmsg = NULL((void*)0);

  colonp = strchr(prefarg, ':');
  if (colonp == NULL((void*)0)) {
      *errmsg = g_strdup("missing ':' (syntax is prefname:value).")g_strdup_inline ("missing ':' (syntax is prefname:value).");
      return PREFS_SET_SYNTAX_ERR;
  }

  p = colonp;
  *p++ = '\0';
  /* XXX - Replace line terminators, or match and fail with errmsg, or ignore? */

  /*
   * Skip over any white space (there probably won't be any, but
   * as we allow it in the preferences file, we might as well
   * allow it here).
   */
  while (g_ascii_isspace(*p)((g_ascii_table[(guchar) (*p)] & G_ASCII_SPACE) != 0))
      p++;
  /* The empty string is a legal value for range preferences (PREF_RANGE,
   * PREF_DECODE_AS_RANGE), and string-like preferences (PREF_STRING,
   * PREF_SAVE_FILENAME, PREF_OPEN_FILENAME, PREF_DIRNAME), indeed often
   * not just useful but the default. A user might have a value saved
   * to their preference file but want to override it to default behavior.
   * Individual preference handlers of those types should be prepared to
   * deal with an empty string. For other types, it is up to set_pref() to
   * test for the empty string and set PREFS_SET_SYNTAX_ERROR there.
   */
  if (strcmp(prefarg, "uat")) {
      ret = set_pref(prefarg, p, NULL((void*)0), true1);
  } else {
      ret = prefs_set_uat_pref(p, errmsg) ? PREFS_SET_OK : PREFS_SET_SYNTAX_ERR;
  }
  *colonp = ':';    /* put the colon back */
  return ret;
5154}

5156unsigned prefs_get_uint_value(pref_t *pref, pref_source_t source)
5157{
  switch (source)
  {
  case pref_default:
      return pref->default_val.uint;
  case pref_stashed:
      return pref->stashed_val.uint;
  case pref_current:
      return *pref->varp.uint;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5167
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return 0;
5172}

5174unsigned int prefs_set_int_value(pref_t* pref, int value, pref_source_t source)
5175{
  int changed = 0;
  switch (source)
  {
  case pref_default:
      if (pref->default_val.intval != value) {
          pref->default_val.intval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_stashed:
      if (pref->stashed_val.intval != value) {
          pref->stashed_val.intval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_current:
      if (*pref->varp.intp != value) {
          *pref->varp.intp = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5198
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
5203}

5205int prefs_get_int_value(pref_t* pref, pref_source_t source)
5206{
  switch (source)
  {
  case pref_default:
      return pref->default_val.intval;
  case pref_stashed:
      return pref->stashed_val.intval;
  case pref_current:
      return *pref->varp.intp;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5216
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return 0;
5221}

5223unsigned int prefs_set_float_value(pref_t* pref, double value, pref_source_t source)
5224{
  int changed = 0;
  switch (source)
  {
  case pref_default:
      if (pref->default_val.floatval != value) {
          pref->default_val.floatval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_stashed:
      if (pref->stashed_val.floatval != value) {
          pref->stashed_val.floatval = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_current:
      if (*pref->varp.floatp != value) {
          *pref->varp.floatp = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5247
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
5252}

5254double prefs_get_float_value(pref_t* pref, pref_source_t source)
5255{
  switch (source)
  {
  case pref_default:
      return pref->default_val.floatval;
  case pref_stashed:
      return pref->stashed_val.floatval;
  case pref_current:
      return *pref->varp.floatp;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5265
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return 0;
5270}


5273const char *prefs_get_password_value(pref_t *pref, pref_source_t source)
5274{
  return prefs_get_string_value(pref, source);
5276}


5279unsigned int prefs_set_uint_value(pref_t *pref, unsigned value, pref_source_t source)
5280{
  unsigned int changed = 0;
  switch (source)
  {
  case pref_default:
      if (pref->default_val.uint != value) {
          pref->default_val.uint = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_stashed:
      if (pref->stashed_val.uint != value) {
          pref->stashed_val.uint = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  case pref_current:
      if (*pref->varp.uint != value) {
          *pref->varp.uint = value;
          changed = prefs_get_effect_flags(pref);
      }
      break;
  default:
      ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5303
, __func__, "assertion \"not reached\" failed");
      break;
  }

  return changed;
5308}

5310/*
* For use by UI code that sets preferences.
*/
5313unsigned int
5314prefs_set_password_value(pref_t *pref, const char* value, pref_source_t source)
5315{
  return prefs_set_string_value(pref, value, source);
5317}


5320unsigned prefs_get_uint_base(pref_t *pref)
5321{
  return pref->info.base;
5323}

5325/*
* Returns true if the given device is hidden
*/
5328bool_Bool
5329prefs_is_capture_device_hidden(const char *name)
5330{
  char *tok, *devices;
  size_t len;

  if (prefs.capture_devices_hide && name) {
      devices = g_strdup (prefs.capture_devices_hide)g_strdup_inline (prefs.capture_devices_hide);
      len = strlen (name);
      for (tok = strtok (devices, ","); tok; tok = strtok(NULL((void*)0), ",")) {
          if (strlen (tok) == len && strcmp (name, tok) == 0) {
              g_free (devices);
              return true1;
          }
      }
      g_free (devices);
  }

  return false0;
5347}

5349/*
* Returns true if the given column is visible (not hidden)
*/
5352static bool_Bool
5353prefs_is_column_visible(const char *cols_hidden, int col)
5354{
  char *tok, *cols, *p;
  int cidx;

  /*
   * Do we have a list of hidden columns?
   */
  if (cols_hidden) {
      /*
       * Yes - check the column against each of the ones in the
       * list.
       */
      cols = g_strdup(cols_hidden)g_strdup_inline (cols_hidden);
      for (tok = strtok(cols, ","); tok; tok = strtok(NULL((void*)0), ",")) {
          tok = g_strstrip(tok)g_strchomp (g_strchug (tok));

          cidx = (int)strtol(tok, &p, 10);
          if (p == tok || *p != '\0') {
              continue;
          }
          if (cidx != col) {
              continue;
          }
          /*
           * OK, they match, so it's one of the hidden fields,
           * hence not visible.
           */
          g_free(cols);
          return false0;
      }
      g_free(cols);
  }

  /*
   * No - either there are no hidden columns or this isn't one
   * of them - so it is visible.
   */
  return true1;
5392}

5394/*
* Returns true if the given column is visible (not hidden)
*/
5397static bool_Bool
5398prefs_is_column_fmt_visible(const char *cols_hidden, fmt_data *cfmt)
5399{
  char *tok, *cols;
  fmt_data cfmt_hidden;

  /*
   * Do we have a list of hidden columns?
   */
  if (cols_hidden) {
      /*
       * Yes - check the column against each of the ones in the
       * list.
       */
      cols = g_strdup(cols_hidden)g_strdup_inline (cols_hidden);
      for (tok = strtok(cols, ","); tok; tok = strtok(NULL((void*)0), ",")) {
          tok = g_strstrip(tok)g_strchomp (g_strchug (tok));

          /*
           * Parse this column format.
           */
          if (!parse_column_format(&cfmt_hidden, tok)) {
              /*
               * It's not valid; ignore it.
               */
              continue;
          }

          /*
           * Does it match the column?
           */
          if (cfmt->fmt != cfmt_hidden.fmt) {
              /* No. */
              g_free(cfmt_hidden.custom_fields);
              cfmt_hidden.custom_fields = NULL((void*)0);
              continue;
          }
          if (cfmt->fmt == COL_CUSTOM) {
              /*
               * A custom column has to have the same custom field
               * and occurrence.
               */
              if (cfmt_hidden.custom_fields && cfmt->custom_fields) {
                  if (strcmp(cfmt->custom_fields,
                             cfmt_hidden.custom_fields) != 0) {
                      /* Different fields. */
                      g_free(cfmt_hidden.custom_fields);
                      cfmt_hidden.custom_fields = NULL((void*)0);
                      continue;
                  }
                  if (cfmt->custom_occurrence != cfmt_hidden.custom_occurrence) {
                      /* Different occurrences settings. */
                      g_free(cfmt_hidden.custom_fields);
                      cfmt_hidden.custom_fields = NULL((void*)0);
                      continue;
                  }
              }
          }

          /*
           * OK, they match, so it's one of the hidden fields,
           * hence not visible.
           */
          g_free(cfmt_hidden.custom_fields);
          g_free(cols);
          return false0;
      }
      g_free(cols);
  }

  /*
   * No - either there are no hidden columns or this isn't one
   * of them - so it is visible.
   */
  return true1;
5472}

5474/*
* Returns true if the given device should capture in monitor mode by default
*/
5477bool_Bool
5478prefs_capture_device_monitor_mode(const char *name)
5479{
  char *tok, *devices;
  size_t len;

  if (prefs.capture_devices_monitor_mode && name) {
      devices = g_strdup (prefs.capture_devices_monitor_mode)g_strdup_inline (prefs.capture_devices_monitor_mode);
      len = strlen (name);
      for (tok = strtok (devices, ","); tok; tok = strtok(NULL((void*)0), ",")) {
          if (strlen (tok) == len && strcmp (name, tok) == 0) {
              g_free (devices);
              return true1;
          }
      }
      g_free (devices);
  }

  return false0;
5496}

5498/*
* Returns true if the user has marked this column as visible
*/
5501bool_Bool
5502prefs_capture_options_dialog_column_is_visible(const char *column)
5503{
  GList *curr;
  char *col;

  for (curr = g_list_first(prefs.capture_columns); curr; curr = g_list_next(curr)((curr) ? (((GList *)(curr))->next) : ((void*)0))) {
      col = (char *)curr->data;
      if (col && (g_ascii_strcasecmp(col, column) == 0)) {
          return true1;
      }
  }
  return false0;
5514}

5516bool_Bool
5517prefs_has_layout_pane_content (layout_pane_content_e layout_pane_content)
5518{
  return ((prefs.gui_layout_content_1 == layout_pane_content) ||
          (prefs.gui_layout_content_2 == layout_pane_content) ||
          (prefs.gui_layout_content_3 == layout_pane_content));
5522}

5524char
5525string_to_name_resolve(const char *string, e_addr_resolve *name_resolve)
5526{
  char c;

  memset(name_resolve, 0, sizeof(e_addr_resolve));
  while ((c = *string++) != '\0') {
      switch (c) {
      case 'g':
          name_resolve->maxmind_geoip = true1;
          break;
      case 'm':
          name_resolve->mac_name = true1;
          break;
      case 'n':
          name_resolve->network_name = true1;
          break;
      case 'N':
          name_resolve->use_external_net_name_resolver = true1;
          break;
      case 't':
          name_resolve->transport_name = true1;
          break;
      case 'd':
          name_resolve->dns_pkt_addr_resolution = true1;
          break;
      case 's':
          name_resolve->handshake_sni_addr_resolution = true1;
          break;
      case 'v':
          name_resolve->vlan_name = true1;
          break;
      default:
          /*
           * Unrecognized letter.
           */
          return c;
      }
  }
  return '\0';
5564}

5566static bool_Bool
5567deprecated_heur_dissector_pref(char *pref_name, const char *value)
5568{
  struct heur_pref_name
  {
      const char* pref_name;
      const char* short_name;
      bool_Bool      more_dissectors; /* For multiple dissectors controlled by the same preference */
  };

  static const struct heur_pref_name heur_prefs[] = {
      {"acn.heuristic_acn", "acn_udp", 0},
      {"bfcp.enable", "bfcp_tcp", 1},
      {"bfcp.enable", "bfcp_udp", 0},
      {"bt-dht.enable", "bittorrent_dht_udp", 0},
      {"bt-utp.enable", "bt_utp_udp", 0},
      {"cattp.enable", "cattp_udp", 0},
      {"cfp.enable", "fp_eth", 0},
      {"dicom.heuristic", "dicom_tcp", 0},
      {"dnp3.heuristics", "dnp3_tcp", 1},
      {"dnp3.heuristics", "dnp3_udp", 0},
      {"dvb-s2_modeadapt.enable", "dvb_s2_udp", 0},
      {"esl.enable", "esl_eth", 0},
      {"fp.udp_heur", "fp_udp", 0},
      {"gvsp.enable_heuristic", "gvsp_udp", 0},
      {"hdcp2.enable", "hdcp2_tcp", 0},
      {"hislip.enable_heuristic", "hislip_tcp", 0},
      {"infiniband.dissect_eoib", "mellanox_eoib", 1},
      {"infiniband.identify_payload", "eth_over_ib", 0},
      {"jxta.udp.heuristic", "jxta_udp", 0},
      {"jxta.tcp.heuristic", "jxta_tcp", 0},
      {"jxta.sctp.heuristic", "jxta_sctp", 0},
      {"mac-lte.heuristic_mac_lte_over_udp", "mac_lte_udp", 0},
      {"mbim.bulk_heuristic", "mbim_usb_bulk", 0},
      {"norm.heuristic_norm", "rmt_norm_udp", 0},
      {"openflow.heuristic", "openflow_tcp", 0},
      {"pdcp-lte.heuristic_pdcp_lte_over_udp", "pdcp_lte_udp", 0},
      {"rlc.heuristic_rlc_over_udp", "rlc_udp", 0},
      {"rlc-lte.heuristic_rlc_lte_over_udp", "rlc_lte_udp", 0},
      {"rtcp.heuristic_rtcp", "rtcp_udp", 1},
      {"rtcp.heuristic_rtcp", "rtcp_stun", 0},
      {"rtp.heuristic_rtp", "rtp_udp", 1},
      {"rtp.heuristic_rtp", "rtp_stun", 0},
      {"teredo.heuristic_teredo", "teredo_udp", 0},
      {"vssmonitoring.use_heuristics", "vssmonitoring_eth", 0},
      {"xml.heuristic", "xml_http", 1},
      {"xml.heuristic", "xml_sip", 1},
      {"xml.heuristic", "xml_media", 0},
      {"xml.heuristic_tcp", "xml_tcp", 0},
      {"xml.heuristic_udp", "xml_udp", 0},
  };

  unsigned int i;
  heur_dtbl_entry_t* heuristic;


  for (i = 0; i < array_length(heur_prefs)(sizeof (heur_prefs) / sizeof (heur_prefs)[0]); i++)
  {
      if (strcmp(pref_name, heur_prefs[i].pref_name) == 0)
      {
          heuristic = find_heur_dissector_by_unique_short_name(heur_prefs[i].short_name);
          if (heuristic != NULL((void*)0)) {
              heuristic->enabled = ((g_ascii_strcasecmp(value, "true") == 0) ? true1 : false0);
          }

          if (!heur_prefs[i].more_dissectors)
              return true1;
      }
  }


  return false0;
5638}

5640static bool_Bool
5641deprecated_enable_dissector_pref(char *pref_name, const char *value)
5642{
  struct dissector_pref_name
  {
      const char* pref_name;
      const char* short_name;
  };

  struct dissector_pref_name dissector_prefs[] = {
      {"transum.tsumenabled", "TRANSUM"},
      {"snort.enable_snort_dissector", "Snort"},
      {"prp.enable", "PRP"},
  };

  unsigned int i;
  int proto_id;

  for (i = 0; i < array_length(dissector_prefs)(sizeof (dissector_prefs) / sizeof (dissector_prefs)[0]); i++)
  {
      if (strcmp(pref_name, dissector_prefs[i].pref_name) == 0)
      {
          proto_id = proto_get_id_by_short_name(dissector_prefs[i].short_name);
          if (proto_id >= 0)
              proto_set_decoding(proto_id, ((g_ascii_strcasecmp(value, "true") == 0) ? true1 : false0));
          return true1;
      }
  }

  return false0;
5670}

5672static bool_Bool
5673deprecated_port_pref(char *pref_name, const char *value)
5674{
  struct port_pref_name
  {
      const char* pref_name;
      const char* module_name;    /* the protocol filter name */
      const char* table_name;
      unsigned base;
  };

  struct obsolete_pref_name
  {
      const char* pref_name;
  };

  /* For now this is only supporting TCP/UDP port and RTP payload
   * types dissector preferences, which are assumed to be decimal */
  /* module_name is the filter name of the destination port preference,
   * which is usually the same as the original module but not
   * necessarily (e.g., if the preference is for what is now a PINO.)
   * XXX:  Most of these were changed pre-2.0. Can we end support
   * for migrating legacy preferences at some point?
   */
  static const struct port_pref_name port_prefs[] = {
      /* TCP */
      {"cmp.tcp_alternate_port", "cmp", "tcp.port", 10},
      {"h248.tcp_port", "h248", "tcp.port", 10},
      {"cops.tcp.cops_port", "cops", "tcp.port", 10},
      {"dhcpfo.tcp_port", "dhcpfo", "tcp.port", 10},
      {"enttec.tcp_port", "enttec", "tcp.port", 10},
      {"forces.tcp_alternate_port", "forces", "tcp.port", 10},
      {"ged125.tcp_port", "ged125", "tcp.port", 10},
      {"hpfeeds.dissector_port", "hpfeeds", "tcp.port", 10},
      {"lsc.port", "lsc", "tcp.port", 10},
      {"megaco.tcp.txt_port", "megaco", "tcp.port", 10},
      {"netsync.tcp_port", "netsync", "tcp.port", 10},
      {"osi.tpkt_port", "osi", "tcp.port", 10},
      {"rsync.tcp_port", "rsync", "tcp.port", 10},
      {"sametime.tcp_port", "sametime", "tcp.port", 10},
      {"sigcomp.tcp.port2", "sigcomp", "tcp.port", 10},
      {"synphasor.tcp_port", "synphasor", "tcp.port", 10},
      {"tipc.alternate_port", "tipc", "tcp.port", 10},
      {"vnc.alternate_port", "vnc", "tcp.port", 10},
      {"scop.port", "scop", "tcp.port", 10},
      {"scop.port_secure", "scop", "tcp.port", 10},
      {"tpncp.tcp.trunkpack_port", "tpncp", "tcp.port", 10},
      /* UDP */
      {"h248.udp_port", "h248", "udp.port", 10},
      {"actrace.udp_port", "actrace", "udp.port", 10},
      {"brp.port", "brp", "udp.port", 10},
      {"bvlc.additional_udp_port", "bvlc", "udp.port", 10},
      {"capwap.udp.port.control", "capwap", "udp.port", 10},
      {"capwap.udp.port.data", "capwap", "udp.port", 10},
      {"coap.udp_port", "coap", "udp.port", 10},
      {"enttec.udp_port", "enttec", "udp.port", 10},
      {"forces.udp_alternate_port", "forces", "udp.port", 10},
      {"ldss.udp_port", "ldss", "udp.port", 10},
      {"lmp.udp_port", "lmp", "udp.port", 10},
      {"ltp.port", "ltp", "udp.port", 10},
      {"lwres.udp.lwres_port", "lwres", "udp.port", 10},
      {"megaco.udp.txt_port", "megaco", "udp.port", 10},
      {"pfcp.port_pfcp", "pfcp", "udp.port", 10},
      {"pgm.udp.encap_ucast_port", "pgm", "udp.port", 10},
      {"pgm.udp.encap_mcast_port", "pgm", "udp.port", 10},
      {"quic.udp.quic.port", "quic", "udp.port", 10},
      {"quic.udp.quics.port", "quic", "udp.port", 10},
      {"radius.alternate_port", "radius", "udp.port", 10},
      {"rdt.default_udp_port", "rdt", "udp.port", 10},
      {"alc.default.udp_port", "alc", "udp.port", 10},
      {"sigcomp.udp.port2", "sigcomp", "udp.port", 10},
      {"synphasor.udp_port", "synphasor", "udp.port", 10},
      {"tdmop.udpport", "tdmop", "udp.port", 10},
      {"uaudp.port1", "uaudp", "udp.port", 10},
      {"uaudp.port2", "uaudp", "udp.port", 10},
      {"uaudp.port3", "uaudp", "udp.port", 10},
      {"uaudp.port4", "uaudp", "udp.port", 10},
      {"uhd.dissector_port", "uhd", "udp.port", 10},
      {"vrt.dissector_port", "vrt", "udp.port", 10},
      {"tpncp.udp.trunkpack_port", "tpncp", "udp.port", 10},
      /* SCTP */
      {"hnbap.port", "hnbap", "sctp.port", 10},
      {"m2pa.port", "m2pa", "sctp.port", 10},
      {"megaco.sctp.txt_port", "megaco", "sctp.port", 10},
      {"rua.port", "rua", "sctp.port", 10},
      /* SCTP PPI */
      {"lapd.sctp_payload_protocol_identifier", "lapd", "sctp.ppi", 10},
      /* SCCP SSN */
      {"ranap.sccp_ssn", "ranap", "sccp.ssn", 10},
  };

  static const struct port_pref_name port_range_prefs[] = {
      /* TCP */
      {"couchbase.tcp.ports", "couchbase", "tcp.port", 10},
      {"gsm_ipa.tcp_ports", "gsm_ipa", "tcp.port", 10},
      {"kafka.tcp.ports", "kafka", "tcp.port", 10},
      {"kt.tcp.ports", "kt", "tcp.port", 10},
      {"memcache.tcp.ports", "memcache", "tcp.port", 10},
      {"mrcpv2.tcp.port_range", "mrcpv2", "tcp.port", 10},
      {"pdu_transport.ports.tcp", "pdu_transport", "tcp.port", 10},
      {"rtsp.tcp.port_range", "rtsp", "tcp.port", 10},
      {"sip.tcp.ports", "sip", "tcp.port", 10},
      {"someip.ports.tcp", "someip", "tcp.port", 10},
      {"tds.tcp_ports", "tds", "tcp.port", 10},
      {"tpkt.tcp.ports", "tpkt", "tcp.port", 10},
      {"uma.tcp.ports", "uma", "tcp.port", 10},
      /* UDP */
      {"aruba_erm.udp.ports", "arubs_erm", "udp.port", 10},
      {"diameter.udp.ports", "diameter", "udp.port", 10},
      {"dmp.udp_ports", "dmp", "udp.port", 10},
      {"dns.udp.ports", "dns", "udp.port", 10},
      {"gsm_ipa.udp_ports", "gsm_ipa", "udp.port", 10},
      {"hcrt.dissector_udp_port", "hcrt", "udp.port", 10},
      {"memcache.udp.ports", "memcache", "udp.port", 10},
      {"nb_rtpmux.udp_ports", "nb_rtpmux", "udp.port", 10},
      {"gprs-ns.udp.ports", "gprs-ns", "udp.port", 10},
      {"p_mul.udp_ports", "p_mul", "udp.port", 10},
      {"pdu_transport.ports.udp", "pdu_transport", "udp.port", 10},
      {"radius.ports", "radius", "udp.port", 10},
      {"sflow.ports", "sflow", "udp.port", 10},
      {"someip.ports.udp", "someip", "udp.port", 10},
      {"sscop.udp.ports", "sscop", "udp.port", 10},
      {"tftp.udp_ports", "tftp", "udp.port", 10},
      {"tipc.udp.ports", "tipc", "udp.port", 10},
      /* RTP */
      {"amr.dynamic.payload.type", "amr", "rtp.pt", 10},
      {"amr.wb.dynamic.payload.type", "amr_wb", "rtp.pt", 10},
      {"dvb-s2_modeadapt.dynamic.payload.type", "dvb-s2_modeadapt", "rtp.pt", 10},
      {"evs.dynamic.payload.type", "evs", "rtp.pt", 10},
      {"h263p.dynamic.payload.type", "h263p", "rtp.pt", 10},
      {"h264.dynamic.payload.type", "h264", "rtp.pt", 10},
      {"h265.dynamic.payload.type", "h265", "rtp.pt", 10},
      {"ismacryp.dynamic.payload.type", "ismacryp", "rtp.pt", 10},
      {"iuup.dynamic.payload.type", "iuup", "rtp.pt", 10},
      {"lapd.rtp_payload_type", "lapd", "rtp.pt", 10},
      {"mp4ves.dynamic.payload.type", "mp4ves", "rtp.pt", 10},
      {"mtp2.rtp_payload_type", "mtp2", "rtp.pt", 10},
      {"opus.dynamic.payload.type", "opus", "rtp.pt", 10},
      {"rtp.rfc2198_payload_type", "rtp_rfc2198", "rtp.pt", 10},
      {"rtpevent.event_payload_type_value", "rtpevent", "rtp.pt", 10},
      {"rtpevent.cisco_nse_payload_type_value", "rtpevent", "rtp.pt", 10},
      {"rtpmidi.midi_payload_type_value", "rtpmidi", "rtp.pt", 10},
      {"vp8.dynamic.payload.type", "vp8", "rtp.pt", 10},
      /* SCTP */
      {"diameter.sctp.ports", "diameter", "sctp.port", 10},
      {"sgsap.sctp_ports", "sgsap", "sctp.port", 10},
      /* SCCP SSN */
      {"pcap.ssn", "pcap", "sccp.ssn", 10},
  };

  /* These are subdissectors of TPKT/OSITP that used to have a
     TCP port preference even though they were never
     directly on TCP.  Convert them to use Decode As
     with the TPKT dissector handle */
  static const struct port_pref_name tpkt_subdissector_port_prefs[] = {
      {"dap.tcp.port", "dap", "tcp.port", 10},
      {"disp.tcp.port", "disp", "tcp.port", 10},
      {"dop.tcp.port", "dop", "tcp.port", 10},
      {"dsp.tcp.port", "dsp", "tcp.port", 10},
      {"p1.tcp.port", "p1", "tcp.port", 10},
      {"p7.tcp.port", "p7", "tcp.port", 10},
      {"rdp.tcp.port", "rdp", "tcp.port", 10},
  };

  /* These are obsolete preferences from the dissectors' view,
     (typically because of a switch from a single value to a
     range value) but the name of the preference conflicts
     with the generated preference name from the dissector table.
     Don't allow the obsolete preference through to be handled */
  static const struct obsolete_pref_name obsolete_prefs[] = {
      {"diameter.tcp.port"},
      {"kafka.tcp.port"},
      {"mrcpv2.tcp.port"},
      {"rtsp.tcp.port"},
      {"sip.tcp.port"},
      {"t38.tcp.port"},
  };

  unsigned int i;
  unsigned uval;
  dissector_table_t sub_dissectors;
  dissector_handle_t handle, tpkt_handle;
  module_t *module;
  pref_t *pref;

  static bool_Bool sanity_checked;
  if (!sanity_checked) {
      sanity_checked = true1;
      for (i = 0; i < G_N_ELEMENTS(port_prefs)(sizeof (port_prefs) / sizeof ((port_prefs)[0])); i++) {
          module = prefs_find_module(port_prefs[i].module_name);
          if (!module) {
              ws_warning("Deprecated ports pref check - module '%s' not found", port_prefs[i].module_name)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5863, __func__, "Deprecated ports pref check - module '%s' not found"
, port_prefs[i].module_name); } } while (0);
              continue;
          }
          pref = prefs_find_preference(module, port_prefs[i].table_name);
          if (!pref) {
              ws_warning("Deprecated ports pref '%s.%s' not found", module->name, port_prefs[i].table_name)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5868, __func__, "Deprecated ports pref '%s.%s' not found", module
->name, port_prefs[i].table_name); } } while (0);
              continue;
          }
          if (pref->type != PREF_DECODE_AS_RANGE) {
              ws_warning("Deprecated ports pref '%s.%s' has wrong type: %#x (%s)", module->name, port_prefs[i].table_name, pref->type, prefs_pref_type_name(pref))do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 5872, __func__, "Deprecated ports pref '%s.%s' has wrong type: %#x (%s)"
, module->name, port_prefs[i].table_name, pref->type, prefs_pref_type_name
(pref)); } } while (0);
          }
      }
  }

  for (i = 0; i < G_N_ELEMENTS(port_prefs)(sizeof (port_prefs) / sizeof ((port_prefs)[0])); i++) {
      if (strcmp(pref_name, port_prefs[i].pref_name) == 0) {
          if (!ws_basestrtou32(value, NULL((void*)0), &uval, port_prefs[i].base))
              return false0;        /* number was bad */

          module = prefs_find_module(port_prefs[i].module_name);
          pref = prefs_find_preference(module, port_prefs[i].table_name);
          if (pref != NULL((void*)0)) {
              module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              if (pref->type == PREF_DECODE_AS_RANGE) {
                  // The legacy preference was a port number, but the new
                  // preference is a port range. Add to existing range.
                  if (uval) {
                      prefs_range_add_value(pref, uval);
                  }
              }
          }

          /* If the value is zero, it wouldn't add to the Decode As tables */
          if (uval != 0)
          {
              sub_dissectors = find_dissector_table(port_prefs[i].table_name);
              if (sub_dissectors != NULL((void*)0)) {
                  handle = dissector_table_get_dissector_handle(sub_dissectors, module->title);
                  if (handle != NULL((void*)0)) {
                      dissector_change_uint(port_prefs[i].table_name, uval, handle);
                      decode_build_reset_list(port_prefs[i].table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER(uval)((gpointer) (gulong) (uval)), NULL((void*)0), NULL((void*)0));
                  }
              }
          }

          return true1;
      }
  }

  for (i = 0; i < array_length(port_range_prefs)(sizeof (port_range_prefs) / sizeof (port_range_prefs)[0]); i++)
  {
      if (strcmp(pref_name, port_range_prefs[i].pref_name) == 0)
      {
          uint32_t range_i, range_j;

          sub_dissectors = find_dissector_table(port_range_prefs[i].table_name);
          if (sub_dissectors != NULL((void*)0)) {
              switch (dissector_table_get_type(sub_dissectors)) {
              case FT_UINT8:
              case FT_UINT16:
              case FT_UINT24:
              case FT_UINT32:
                  break;

              default:
                  ws_error("The dissector table %s (%s) is not an integer type - are you using a buggy plugin?", port_range_prefs[i].table_name, get_dissector_table_ui_name(port_range_prefs[i].table_name))ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5928
, __func__, "The dissector table %s (%s) is not an integer type - are you using a buggy plugin?"
, port_range_prefs[i].table_name, get_dissector_table_ui_name
(port_range_prefs[i].table_name));
                  ws_assert_not_reached()ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 5929
, __func__, "assertion \"not reached\" failed");
              }

              module = prefs_find_module(port_range_prefs[i].module_name);
              pref = prefs_find_preference(module, port_range_prefs[i].table_name);
              if (pref != NULL((void*)0))
              {
                  if (!prefs_set_range_value_work(pref, value, true1, &module->prefs_changed_flags))
                  {
                      return false0;        /* number was bad */
                  }

                  handle = dissector_table_get_dissector_handle(sub_dissectors, module->title);
                  if (handle != NULL((void*)0)) {

                      for (range_i = 0; range_i < (*pref->varp.range)->nranges; range_i++) {
                          for (range_j = (*pref->varp.range)->ranges[range_i].low; range_j < (*pref->varp.range)->ranges[range_i].high; range_j++) {
                              dissector_change_uint(port_range_prefs[i].table_name, range_j, handle);
                              decode_build_reset_list(port_range_prefs[i].table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER(range_j)((gpointer) (gulong) (range_j)), NULL((void*)0), NULL((void*)0));
                          }

                          dissector_change_uint(port_range_prefs[i].table_name, (*pref->varp.range)->ranges[range_i].high, handle);
                          decode_build_reset_list(port_range_prefs[i].table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER((*pref->varp.range)->ranges[range_i].high)((gpointer) (gulong) ((*pref->varp.range)->ranges[range_i
].high)), NULL((void*)0), NULL((void*)0));
                      }
                  }
              }
          }

          return true1;
      }
  }

  for (i = 0; i < array_length(tpkt_subdissector_port_prefs)(sizeof (tpkt_subdissector_port_prefs) / sizeof (tpkt_subdissector_port_prefs
)[0]); i++)
  {
      if (strcmp(pref_name, tpkt_subdissector_port_prefs[i].pref_name) == 0)
      {
          /* XXX - give an error if it doesn't fit in a unsigned? */
          if (!ws_basestrtou32(value, NULL((void*)0), &uval, tpkt_subdissector_port_prefs[i].base))
              return false0;        /* number was bad */

          /* If the value is 0 or 102 (default TPKT port), don't add to the Decode As tables */
          if ((uval != 0) && (uval != 102))
          {
              tpkt_handle = find_dissector("tpkt");
              if (tpkt_handle != NULL((void*)0)) {
                  dissector_change_uint(tpkt_subdissector_port_prefs[i].table_name, uval, tpkt_handle);
              }
          }

          return true1;
      }
  }

  for (i = 0; i < array_length(obsolete_prefs)(sizeof (obsolete_prefs) / sizeof (obsolete_prefs)[0]); i++)
  {
      if (strcmp(pref_name, obsolete_prefs[i].pref_name) == 0)
      {
          /* Just ignore the preference */
          return true1;
      }
  }
  return false0;
5991}

5993static prefs_set_pref_e
5994set_pref(char *pref_name, const char *value, void *private_data,
       bool_Bool return_range_errors)
5996{
  unsigned cval;
  unsigned uval;
  bool_Bool     bval;
  int      enum_val, ival;
  double   fval;
  char     *dotp, *last_dotp;
  module_t *module, *containing_module, *target_module;
  pref_t   *pref;
  bool_Bool converted_pref = false0;

  target_module = (module_t*)private_data;

  if (deprecated_heur_dissector_pref(pref_name, value)) {
       /* Handled within deprecated_heur_dissector_pref() if found */
  } else if (deprecated_enable_dissector_pref(pref_name, value)) {
       /* Handled within deprecated_enable_dissector_pref() if found */
  } else if (deprecated_port_pref(pref_name, value)) {
       /* Handled within deprecated_port_pref() if found */
  } else if (strcmp(pref_name, "console.log.level") == 0) {
      /* Handled on the command line within ws_log_parse_args() */
      return PREFS_SET_OK;
  } else {
      /* To which module does this preference belong? */
      module = NULL((void*)0);
      last_dotp = pref_name;
      while (!module) {
          dotp = strchr(last_dotp, '.');
          if (dotp == NULL((void*)0)) {
              /* Either there's no such module, or no module was specified.
                  In either case, that means there's no such preference. */
              return PREFS_SET_NO_SUCH_PREF;
          }
          *dotp = '\0'; /* separate module and preference name */
          module = prefs_find_module(pref_name);

          /*
           * XXX - "Diameter" rather than "diameter" was used in earlier
           * versions of Wireshark; if we didn't find the module, and its name
           * was "Diameter", look for "diameter" instead.
           *
           * In addition, the BEEP protocol used to be the BXXP protocol,
           * so if we didn't find the module, and its name was "bxxp",
           * look for "beep" instead.
           *
           * Also, the preferences for GTP v0 and v1 were combined under
           * a single "gtp" heading, and the preferences for SMPP were
           * moved to "smpp-gsm-sms" and then moved to "gsm-sms-ud".
           * However, SMPP now has its own preferences, so we just map
           * "smpp-gsm-sms" to "gsm-sms-ud", and then handle SMPP below.
           *
           * We also renamed "dcp" to "dccp", "x.25" to "x25", "x411" to "p1"
           * and "nsip" to "gprs_ns".
           *
           * The SynOptics Network Management Protocol (SONMP) is now known by
           * its modern name, the Nortel Discovery Protocol (NDP).
           */
          if (module == NULL((void*)0)) {
              /*
               * See if there's a backwards-compatibility name
               * that maps to this module.
               */
              module = prefs_find_module_alias(pref_name);
              if (module == NULL((void*)0)) {
                  /*
                   * There's no alias for the module; see if the
                   * module name matches any protocol aliases.
                   */
                  header_field_info *hfinfo = proto_registrar_get_byalias(pref_name);
                  if (hfinfo) {
                      module = (module_t *) wmem_tree_lookup_string(prefs_modules, hfinfo->abbrev, WMEM_TREE_STRING_NOCASE0x00000001);
                  }
              }
              if (module) {
                  converted_pref = true1;
              }
          }
          *dotp = '.';                /* put the preference string back */
          dotp++;                     /* skip past separator to preference name */
          last_dotp = dotp;
      }

      /* The pref is located in the module or a submodule.
       * Assume module, then search for a submodule holding the pref. */
      containing_module = module;
      pref = prefs_find_preference_with_submodule(module, dotp, &containing_module);

      if (pref == NULL((void*)0)) {
          /* "gui" prefix was added to column preferences for better organization
           * within the preferences file
           */
          if (module == gui_column_module) {
              /* While this has a subtree, there is no apply callback, so no
               * need to use prefs_find_preference_with_submodule to update
               * containing_module. It would not be useful. */
              pref = prefs_find_preference(module, pref_name);
          }
          else if (strcmp(module->name, "tcp") == 0) {
              /* Handle old names for TCP preferences. */
              if (strcmp(dotp, "dissect_experimental_options_with_magic") == 0)
                  pref = prefs_find_preference(module, "dissect_experimental_options_rfc6994");
          } else if (strcmp(module->name, "extcap") == 0) {
              /* Handle the old "sshdump.remotesudo" preference; map it to the new
                "sshdump.remotepriv" preference, and map the boolean values to the
                appropriate strings of the new preference. */
              if (strcmp(dotp, "sshdump.remotesudo") == 0) {
                  pref = prefs_find_preference(module, "sshdump.remotepriv");
                  if (g_ascii_strcasecmp(value, "true") == 0)
                      value = "sudo";
                  else
                      value = "none";
              }
          }
          if (pref) {
              converted_pref = true1;
          }
      }
      if (pref == NULL((void*)0) ) {
          if (strcmp(module->name, "extcap") == 0 && g_list_length(module->prefs) <= 1) {
                  /*
                  * Assume that we've skipped extcap preference registration
                  * and that only extcap.gui_save_on_start is loaded.
                  */
                  return PREFS_SET_OK;
              }
          return PREFS_SET_NO_SUCH_PREF;    /* no such preference */
      }

      if (target_module && target_module != containing_module) {
          /* Ignore */
          return PREFS_SET_OK;
      }

      if (pref->obsolete)
          return PREFS_SET_OBSOLETE;        /* no such preference any more */

      if (converted_pref) {
          ws_warning("Preference \"%s\" has been converted to \"%s.%s\"\n"do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 6135, __func__, "Preference \"%s\" has been converted to \"%s.%s\"\n"
 "Save your preferences to make this change permanent.", pref_name
, module->name ? module->name : module->parent->name
, prefs_get_name(pref)); } } while (0)
                     "Save your preferences to make this change permanent.",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 6135, __func__, "Preference \"%s\" has been converted to \"%s.%s\"\n"
 "Save your preferences to make this change permanent.", pref_name
, module->name ? module->name : module->parent->name
, prefs_get_name(pref)); } } while (0)
                     pref_name, module->name ? module->name : module->parent->name, prefs_get_name(pref))do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 6135, __func__, "Preference \"%s\" has been converted to \"%s.%s\"\n"
 "Save your preferences to make this change permanent.", pref_name
, module->name ? module->name : module->parent->name
, prefs_get_name(pref)); } } while (0);
      }

      switch (pref->type) {

      case PREF_UINT:
          if (!ws_basestrtou32(value, NULL((void*)0), &uval, pref->info.base))
              return PREFS_SET_SYNTAX_ERR;        /* number was bad */
          if (*pref->varp.uint != uval) {
              containing_module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              *pref->varp.uint = uval;
          }
          break;

      case PREF_INT:
          if (!ws_strtoi32(value, NULL((void*)0), &ival))
              return PREFS_SET_SYNTAX_ERR;        /* number was bad */
          if (*pref->varp.intp != ival) {
              containing_module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              *pref->varp.intp = ival;
          }
          break;

      case PREF_FLOAT:
          fval = g_ascii_strtod(value, NULL((void*)0));
          if (errno(*__errno_location ()) == ERANGE34)
              return PREFS_SET_SYNTAX_ERR;        /* number was bad */

          if (*pref->varp.floatp != fval) {
              containing_module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              *pref->varp.floatp = fval;
          }
          break;

      case PREF_BOOL:
          /* XXX - give an error if it's neither "true" nor "false"? */
          if (g_ascii_strcasecmp(value, "true") == 0)
              bval = true1;
          else
              bval = false0;
          if (*pref->varp.boolp != bval) {
              containing_module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              *pref->varp.boolp = bval;
          }
          break;

      case PREF_ENUM:
          /* XXX - give an error if it doesn't match? */
          enum_val = find_val_for_string(value, pref->info.enum_info.enumvals,
                                         *pref->varp.enump);
          if (*pref->varp.enump != enum_val) {
              containing_module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              *pref->varp.enump = enum_val;
          }
          break;

      case PREF_STRING:
      case PREF_SAVE_FILENAME:
      case PREF_OPEN_FILENAME:
      case PREF_DIRNAME:
      case PREF_DISSECTOR:
          containing_module->prefs_changed_flags |= prefs_set_string_value(pref, value, pref_current);
          break;

      case PREF_PASSWORD:
          /* Read value is every time empty */
          containing_module->prefs_changed_flags |= prefs_set_string_value(pref, "", pref_current);
          break;

      case PREF_RANGE:
      {
          if (!prefs_set_range_value_work(pref, value, return_range_errors,
                                          &containing_module->prefs_changed_flags))
              return PREFS_SET_SYNTAX_ERR;        /* number was bad */
          break;
      }
      case PREF_DECODE_AS_RANGE:
      {
          /* This is for backwards compatibility in case any of the preferences
             that shared the "Decode As" preference name and used to be PREF_RANGE
             are now applied directly to the Decode As functionality */
          range_t *newrange;
          dissector_table_t sub_dissectors;
          dissector_handle_t handle;
          uint32_t i, j;

          if (range_convert_str_work(pref->scope, &newrange, value, pref->info.max_value,
                                     return_range_errors) != CVT_NO_ERROR) {
              return PREFS_SET_SYNTAX_ERR;        /* number was bad */
          }

          if (!ranges_are_equal(*pref->varp.range, newrange)) {
              wmem_free(pref->scope, *pref->varp.range);
              *pref->varp.range = newrange;
              containing_module->prefs_changed_flags |= prefs_get_effect_flags(pref);

              const char* table_name = prefs_get_dissector_table(pref);
              sub_dissectors = find_dissector_table(table_name);
              if (sub_dissectors != NULL((void*)0)) {
                  handle = dissector_table_get_dissector_handle(sub_dissectors, module->title);
                  if (handle != NULL((void*)0)) {
                      /* Delete all of the old values from the dissector table */
                      for (i = 0; i < (*pref->varp.range)->nranges; i++) {
                          for (j = (*pref->varp.range)->ranges[i].low; j < (*pref->varp.range)->ranges[i].high; j++) {
                              dissector_delete_uint(table_name, j, handle);
                              decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER(j)((gpointer) (gulong) (j)), NULL((void*)0), NULL((void*)0));
                          }

                          dissector_delete_uint(table_name, (*pref->varp.range)->ranges[i].high, handle);
                          decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER((*pref->varp.range)->ranges[i].high)((gpointer) (gulong) ((*pref->varp.range)->ranges[i].high
)), NULL((void*)0), NULL((void*)0));
                      }

                      /* Add new values to the dissector table */
                      for (i = 0; i < newrange->nranges; i++) {
                          for (j = newrange->ranges[i].low; j < newrange->ranges[i].high; j++) {
                              dissector_change_uint(table_name, j, handle);
                              decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER(j)((gpointer) (gulong) (j)), NULL((void*)0), NULL((void*)0));
                          }

                          dissector_change_uint(table_name, newrange->ranges[i].high, handle);
                          decode_build_reset_list(table_name, dissector_table_get_type(sub_dissectors), GUINT_TO_POINTER(newrange->ranges[i].high)((gpointer) (gulong) (newrange->ranges[i].high)), NULL((void*)0), NULL((void*)0));
                      }

                      /* XXX - Do we save the decode_as_entries file here? */
                  }
              }
          } else {
              wmem_free(pref->scope, newrange);
          }
          break;
      }

      case PREF_COLOR:
      {
          if (!ws_hexstrtou32(value, NULL((void*)0), &cval))
              return PREFS_SET_SYNTAX_ERR;        /* number was bad */
          if ((pref->varp.colorp->red != RED_COMPONENT(cval)(uint16_t) (((((cval) >> 16) & 0xff) * 65535 / 255)
)) ||
              (pref->varp.colorp->green != GREEN_COMPONENT(cval)(uint16_t) (((((cval) >> 8) & 0xff) * 65535 / 255))) ||
              (pref->varp.colorp->blue != BLUE_COMPONENT(cval)(uint16_t) ( (((cval) & 0xff) * 65535 / 255)))) {
              containing_module->prefs_changed_flags |= prefs_get_effect_flags(pref);
              pref->varp.colorp->red   = RED_COMPONENT(cval)(uint16_t) (((((cval) >> 16) & 0xff) * 65535 / 255)
);
              pref->varp.colorp->green = GREEN_COMPONENT(cval)(uint16_t) (((((cval) >> 8) & 0xff) * 65535 / 255));
              pref->varp.colorp->blue  = BLUE_COMPONENT(cval)(uint16_t) ( (((cval) & 0xff) * 65535 / 255));
          }
          break;
      }

      case PREF_CUSTOM:
          return pref->custom_cbs.set_cb(pref, value, &containing_module->prefs_changed_flags);

      case PREF_STATIC_TEXT:
      case PREF_UAT:
          break;

      case PREF_PROTO_TCP_SNDAMB_ENUM:
      {
          /* There's no point in setting the TCP sequence override
           * value from the command line, because the pref is different
           * for each frame and reset to the default (0) for each new
           * file.
           */
          break;
      }
      }
  }

  return PREFS_SET_OK;
6302}

6304typedef struct {
  FILE     *pf;
  bool_Bool is_gui_module;
6307} write_gui_pref_arg_t;

6309const char *
6310prefs_pref_type_name(pref_t *pref)
6311{
  const char *type_name = "[Unknown]";

  if (!pref) {
      return type_name; /* ...or maybe assert? */
  }

  if (pref->obsolete) {
      type_name = "Obsolete";
  } else {
      switch (pref->type) {

      case PREF_UINT:
          switch (pref->info.base) {

          case 10:
              type_name = "Decimal";
              break;

          case 8:
              type_name = "Octal";
              break;

          case 16:
              type_name = "Hexadecimal";
              break;
          }
          break;

      case PREF_INT:
          type_name = "Integer";
          break;

      case PREF_FLOAT:
          type_name = "Float";
          break;

      case PREF_BOOL:
          type_name = "Boolean";
          break;

      case PREF_ENUM:
      case PREF_PROTO_TCP_SNDAMB_ENUM:
          type_name = "Choice";
          break;

      case PREF_STRING:
          type_name = "String";
          break;

      case PREF_SAVE_FILENAME:
      case PREF_OPEN_FILENAME:
          type_name = "Filename";
          break;

      case PREF_DIRNAME:
          type_name = "Directory";
          break;

      case PREF_RANGE:
          type_name = "Range";
          break;

      case PREF_COLOR:
          type_name = "Color";
          break;

      case PREF_CUSTOM:
          if (pref->custom_cbs.type_name_cb)
              return pref->custom_cbs.type_name_cb();
          type_name = "Custom";
          break;

      case PREF_DECODE_AS_RANGE:
          type_name = "Range (for Decode As)";
          break;

      case PREF_STATIC_TEXT:
          type_name = "Static text";
          break;

      case PREF_UAT:
          type_name = "UAT";
          break;

      case PREF_PASSWORD:
          type_name = "Password";
          break;

      case PREF_DISSECTOR:
          type_name = "Dissector";
          break;
      }
  }

  return type_name;
6407}

6409unsigned int
6410prefs_get_effect_flags(pref_t *pref)
6411{
  if (pref == NULL((void*)0))
      return 0;

  return pref->effect_flags;
6416}

6418void
6419prefs_set_effect_flags(pref_t *pref, unsigned int flags)
6420{
  if (pref != NULL((void*)0)) {
      if (flags == 0) {
          ws_error("Setting \"%s\" preference effect flags to 0", pref->name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 6423
, __func__, "Setting \"%s\" preference effect flags to 0", pref
->name);
      }
      pref->effect_flags = flags;
  }
6427}

6429void
6430prefs_set_effect_flags_by_name(module_t * module, const char *pref, unsigned int flags)
6431{
  prefs_set_effect_flags(prefs_find_preference(module, pref), flags);
6433}

6435unsigned int
6436prefs_get_module_effect_flags(module_t * module)
6437{
  if (module == NULL((void*)0))
      return 0;

  return module->effect_flags;
6442}

6444void
6445prefs_set_module_effect_flags(module_t * module, unsigned int flags)
6446{
  if (module != NULL((void*)0)) {
      if (flags == 0) {
          ws_error("Setting module \"%s\" preference effect flags to 0", module->name)ws_log_fatal_full("Epan", LOG_LEVEL_ERROR, "epan/prefs.c", 6449
, __func__, "Setting module \"%s\" preference effect flags to 0"
, module->name);
      }
      module->effect_flags = flags;
  }
6453}

6455char *
6456prefs_pref_type_description(pref_t *pref)
6457{
  const char *type_desc = "An unknown preference type";

  if (!pref) {
      return ws_strdup_printf("%s.", type_desc)wmem_strdup_printf(((void*)0), "%s.", type_desc); /* ...or maybe assert? */
  }

  if (pref->obsolete) {
      type_desc = "An obsolete preference";
  } else {
      switch (pref->type) {

      case PREF_UINT:
          switch (pref->info.base) {

          case 10:
              type_desc = "A decimal number";
              break;

          case 8:
              type_desc = "An octal number";
              break;

          case 16:
              type_desc = "A hexadecimal number";
              break;
          }
          break;

      case PREF_INT:
          type_desc = "A decimal number";
          break;

      case PREF_FLOAT:
          type_desc = "A floating point number";
          break;

      case PREF_BOOL:
          type_desc = "true or false (case-insensitive)";
          break;

      case PREF_ENUM:
      case PREF_PROTO_TCP_SNDAMB_ENUM:
      {
          const enum_val_t *enum_valp = pref->info.enum_info.enumvals;
          GString *enum_str = g_string_new("One of: ");
          GString *desc_str = g_string_new("\nEquivalently, one of: ");
          bool_Bool distinct = false0;
          while (enum_valp->name != NULL((void*)0)) {
              g_string_append(enum_str, enum_valp->name)(__builtin_constant_p (enum_valp->name) ? __extension__ ({
 const char * const __val = (enum_valp->name); g_string_append_len_inline
 (enum_str, __val, (__val != ((void*)0)) ? (gssize) strlen ((
(__val) + !(__val))) : (gssize) -1); }) : g_string_append_len_inline
 (enum_str, enum_valp->name, (gssize) -1));
              g_string_append(desc_str, enum_valp->description)(__builtin_constant_p (enum_valp->description) ? __extension__
 ({ const char * const __val = (enum_valp->description); g_string_append_len_inline
 (desc_str, __val, (__val != ((void*)0)) ? (gssize) strlen ((
(__val) + !(__val))) : (gssize) -1); }) : g_string_append_len_inline
 (desc_str, enum_valp->description, (gssize) -1));
              if (g_strcmp0(enum_valp->name, enum_valp->description) != 0) {
                  distinct = true1;
              }
              enum_valp++;
              if (enum_valp->name != NULL((void*)0)) {
                  g_string_append(enum_str, ", ")(__builtin_constant_p (", ") ? __extension__ ({ const char * const
 __val = (", "); g_string_append_len_inline (enum_str, __val,
 (__val != ((void*)0)) ? (gssize) strlen (((__val) + !(__val)
)) : (gssize) -1); }) : g_string_append_len_inline (enum_str,
 ", ", (gssize) -1));
                  g_string_append(desc_str, ", ")(__builtin_constant_p (", ") ? __extension__ ({ const char * const
 __val = (", "); g_string_append_len_inline (desc_str, __val,
 (__val != ((void*)0)) ? (gssize) strlen (((__val) + !(__val)
)) : (gssize) -1); }) : g_string_append_len_inline (desc_str,
 ", ", (gssize) -1));
              }
          }
          if (distinct) {
              g_string_append(enum_str, desc_str->str)(__builtin_constant_p (desc_str->str) ? __extension__ ({ const
 char * const __val = (desc_str->str); g_string_append_len_inline
 (enum_str, __val, (__val != ((void*)0)) ? (gssize) strlen ((
(__val) + !(__val))) : (gssize) -1); }) : g_string_append_len_inline
 (enum_str, desc_str->str, (gssize) -1));
          }
          g_string_free(desc_str, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) (
(desc_str), ((!(0)))) : g_string_free_and_steal (desc_str)) :
 (g_string_free) ((desc_str), ((!(0)))));
          g_string_append(enum_str, "\n(case-insensitive).")(__builtin_constant_p ("\n(case-insensitive).") ? __extension__
 ({ const char * const __val = ("\n(case-insensitive)."); g_string_append_len_inline
 (enum_str, __val, (__val != ((void*)0)) ? (gssize) strlen ((
(__val) + !(__val))) : (gssize) -1); }) : g_string_append_len_inline
 (enum_str, "\n(case-insensitive).", (gssize) -1));
          return g_string_free(enum_str, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((enum_str
), ((0))) : g_string_free_and_steal (enum_str)) : (g_string_free
) ((enum_str), ((0))));
      }

      case PREF_STRING:
          type_desc = "A string";
          break;

      case PREF_SAVE_FILENAME:
      case PREF_OPEN_FILENAME:
          type_desc = "A path to a file";
          break;

      case PREF_DIRNAME:
          type_desc = "A path to a directory";
          break;

      case PREF_RANGE:
      {
          type_desc = "A string denoting an positive integer range (e.g., \"1-20,30-40\")";
          break;
      }

      case PREF_COLOR:
      {
          type_desc = "A six-digit hexadecimal RGB color triplet (e.g. fce94f)";
          break;
      }

      case PREF_CUSTOM:
          if (pref->custom_cbs.type_description_cb)
              return pref->custom_cbs.type_description_cb();
          type_desc = "A custom value";
          break;

      case PREF_DECODE_AS_RANGE:
          type_desc = "A string denoting an positive integer range for Decode As";
          break;

      case PREF_STATIC_TEXT:
          type_desc = "[Static text]";
          break;

      case PREF_UAT:
          type_desc = "Configuration data stored in its own file";
          break;

      case PREF_PASSWORD:
          type_desc = "Password (never stored on disk)";
          break;

      case PREF_DISSECTOR:
          type_desc = "A dissector name";
          break;

      default:
          break;
      }
  }

  return g_strdup(type_desc)g_strdup_inline (type_desc);
6582}

6584bool_Bool
6585prefs_pref_is_default(pref_t *pref)
6586{
  if (!pref) return false0;

  if (pref->obsolete) {
      return false0;
  }

  switch (pref->type) {

  case PREF_UINT:
      if (pref->default_val.uint == *pref->varp.uint)
          return true1;
      break;

  case PREF_INT:
      if (pref->default_val.intval == *pref->varp.intp)
          return true1;
      break;

  case PREF_FLOAT:
      if (pref->default_val.floatval == *pref->varp.floatp)
          return true1;
      break;

  case PREF_BOOL:
      if (pref->default_val.boolval == *pref->varp.boolp)
          return true1;
      break;

  case PREF_ENUM:
  case PREF_PROTO_TCP_SNDAMB_ENUM:
      if (pref->default_val.enumval == *pref->varp.enump)
          return true1;
      break;

  case PREF_STRING:
  case PREF_SAVE_FILENAME:
  case PREF_OPEN_FILENAME:
  case PREF_DIRNAME:
  case PREF_PASSWORD:
  case PREF_DISSECTOR:
      if (!(g_strcmp0(pref->default_val.string, *pref->varp.string)))
          return true1;
      break;

  case PREF_DECODE_AS_RANGE:
  case PREF_RANGE:
  {
      if ((ranges_are_equal(pref->default_val.range, *pref->varp.range)))
          return true1;
      break;
  }

  case PREF_COLOR:
  {
      if ((pref->default_val.color.red == pref->varp.colorp->red) &&
          (pref->default_val.color.green == pref->varp.colorp->green) &&
          (pref->default_val.color.blue == pref->varp.colorp->blue))
          return true1;
      break;
  }

  case PREF_CUSTOM:
      return pref->custom_cbs.is_default_cb(pref);

  case PREF_STATIC_TEXT:
  case PREF_UAT:
      return false0;
      /* ws_assert_not_reached(); */
      break;
  }

  return false0;
6659}

6661char *
6662prefs_pref_to_str(pref_t *pref, pref_source_t source)
6663{
  const char *pref_text = "[Unknown]";
  void *valp; /* pointer to preference value */
  color_t *pref_color;
  char *tmp_value, *ret_value;

  if (!pref) {
      return g_strdup(pref_text)g_strdup_inline (pref_text);
  }

  switch (source) {
      case pref_default:
          valp = &pref->default_val;
          /* valp = &boolval, &enumval, etc. are implied by union property */
          pref_color = &pref->default_val.color;
          break;
      case pref_stashed:
          valp = &pref->stashed_val;
          /* valp = &boolval, &enumval, etc. are implied by union property */
          pref_color = &pref->stashed_val.color;
          break;
      case pref_current:
          valp = pref->varp.uint;
          /* valp = boolval, enumval, etc. are implied by union property */
          pref_color = pref->varp.colorp;
          break;
      default:
          return g_strdup(pref_text)g_strdup_inline (pref_text);
  }

  if (pref->obsolete) {
      pref_text = "[Obsolete]";
  } else {
      switch (pref->type) {

      case PREF_UINT:
      {
          unsigned pref_uint = *(unsigned *) valp;
          switch (pref->info.base) {

          case 10:
              return ws_strdup_printf("%u", pref_uint)wmem_strdup_printf(((void*)0), "%u", pref_uint);

          case 8:
              return ws_strdup_printf("%#o", pref_uint)wmem_strdup_printf(((void*)0), "%#o", pref_uint);

          case 16:
              return ws_strdup_printf("%#x", pref_uint)wmem_strdup_printf(((void*)0), "%#x", pref_uint);
          }
          break;
      }
      case PREF_INT:
          return ws_strdup_printf("%d", *(int*)valp)wmem_strdup_printf(((void*)0), "%d", *(int*)valp);

      case PREF_FLOAT:
          return ws_strdup_printf("%.*f", pref->info.base, *(double*)valp)wmem_strdup_printf(((void*)0), "%.*f", pref->info.base, *(
double*)valp);

      case PREF_BOOL:
          return g_strdup((*(bool *) valp) ? "TRUE" : "FALSE")g_strdup_inline ((*(_Bool *) valp) ? "TRUE" : "FALSE");

      case PREF_ENUM:
      case PREF_PROTO_TCP_SNDAMB_ENUM:
      {
          int pref_enumval = *(int *) valp;
          const enum_val_t *enum_valp = pref->info.enum_info.enumvals;
          /*
          * TODO - We write the "description" value, because the "name" values
          * weren't validated to be command line friendly until 5.0, and a few
          * of them had to be changed. This allows older versions of Wireshark
          * to read preferences that they supported, as we supported either
          * the short name or the description when reading the preference files
          * or an "-o" option. Once 5.0 is the oldest supported version, switch
          * to writing the name below.
          */
          while (enum_valp->name != NULL((void*)0)) {
              if (enum_valp->value == pref_enumval)
                  return g_strdup(enum_valp->description)g_strdup_inline (enum_valp->description);
              enum_valp++;
          }
          break;
      }

      case PREF_STRING:
      case PREF_SAVE_FILENAME:
      case PREF_OPEN_FILENAME:
      case PREF_DIRNAME:
      case PREF_PASSWORD:
      case PREF_DISSECTOR:
          return prefs_sanitize_string(*(const char **) valp);

      case PREF_DECODE_AS_RANGE:
      case PREF_RANGE:
          /* Convert wmem to g_alloc memory */
          tmp_value = range_convert_range(NULL((void*)0), *(range_t **) valp);
          ret_value = g_strdup(tmp_value)g_strdup_inline (tmp_value);
          wmem_free(NULL((void*)0), tmp_value);
          return ret_value;

      case PREF_COLOR:
          return ws_strdup_printf("%02x%02x%02x",wmem_strdup_printf(((void*)0), "%02x%02x%02x", (pref_color->
red * 255 / 65535), (pref_color->green * 255 / 65535), (pref_color
->blue * 255 / 65535))
                  (pref_color->red * 255 / 65535),wmem_strdup_printf(((void*)0), "%02x%02x%02x", (pref_color->
red * 255 / 65535), (pref_color->green * 255 / 65535), (pref_color
->blue * 255 / 65535))
                  (pref_color->green * 255 / 65535),wmem_strdup_printf(((void*)0), "%02x%02x%02x", (pref_color->
red * 255 / 65535), (pref_color->green * 255 / 65535), (pref_color
->blue * 255 / 65535))
                  (pref_color->blue * 255 / 65535))wmem_strdup_printf(((void*)0), "%02x%02x%02x", (pref_color->
red * 255 / 65535), (pref_color->green * 255 / 65535), (pref_color
->blue * 255 / 65535));

      case PREF_CUSTOM:
          if (pref->custom_cbs.to_str_cb)
              return pref->custom_cbs.to_str_cb(pref, source == pref_default ? true1 : false0);
          pref_text = "[Custom]";
          break;

      case PREF_STATIC_TEXT:
          pref_text = "[Static text]";
          break;

      case PREF_UAT:
      {
          uat_t *uat = pref->varp.uat;
          if (uat && uat->filename)
              return ws_strdup_printf("[Managed in the file \"%s\"]", uat->filename)wmem_strdup_printf(((void*)0), "[Managed in the file \"%s\"]"
, uat->filename);
          else
              pref_text = "[Managed in an unknown file]";
          break;
      }

      default:
          break;
      }
  }

  return g_strdup(pref_text)g_strdup_inline (pref_text);
6793}

6795/*
* Write out a single dissector preference.
*/
6798void
6799pref_write_individual(void *data, void *user_data)
6800{
  pref_t *pref = (pref_t *)data;
  write_pref_arg_t *arg = (write_pref_arg_t *)user_data;
  char **desc_lines;
  int i;

  if (!pref || pref->obsolete) {
      /*
       * This preference is no longer supported; it's not a
       * real preference, so we don't write it out (i.e., we
       * treat it as if it weren't found in the list of
       * preferences, and we weren't called in the first place).
       */
      return;
  }

  switch (pref->type) {

  case PREF_STATIC_TEXT:
  case PREF_UAT:
      /* Nothing to do; don't bother printing the description */
      return;
  case PREF_DECODE_AS_RANGE:
      /* Data is saved through Decode As mechanism and not part of preferences file */
      return;
  case PREF_PROTO_TCP_SNDAMB_ENUM:
      /* Not written to the preference file because the override is only
       * for the lifetime of the capture file and there is no single
       * value to write.
       */
      return;
  default:
      break;
  }

  if (pref->type != PREF_CUSTOM || pref->custom_cbs.type_name_cb() != NULL((void*)0)) {
      /*
       * The prefix will either be the module name or the parent
       * name if it's a subtree
       */
      const char *name_prefix = (arg->module->name != NULL((void*)0)) ? arg->module->name : arg->module->parent->name;
      char *type_desc, *pref_text;
      const char * def_prefix = prefs_pref_is_default(pref) ? "#" : "";

      if (pref->type == PREF_CUSTOM)
          fprintf(arg->pf, "\n# %s", pref->custom_cbs.type_name_cb());
      fprintf(arg->pf, "\n");
      if (pref->description &&
              (g_ascii_strncasecmp(pref->description,"", 2) != 0)) {
          if (pref->type != PREF_CUSTOM) {
              /* We get duplicate lines otherwise. */

              desc_lines = g_strsplit(pref->description, "\n", 0);
              for (i = 0; desc_lines[i] != NULL((void*)0); ++i) {
                  fprintf(arg->pf, "# %s\n", desc_lines[i]);
              }
              g_strfreev(desc_lines);
          }
      } else {
          fprintf(arg->pf, "# No description\n");
      }

      type_desc = prefs_pref_type_description(pref);
      desc_lines = g_strsplit(type_desc, "\n", 0);
      for (i = 0; desc_lines[i] != NULL((void*)0); ++i) {
          fprintf(arg->pf, "# %s\n", desc_lines[i]);
      }
      g_strfreev(desc_lines);
      g_free(type_desc);

      pref_text = prefs_pref_to_str(pref, pref_current);
      fprintf(arg->pf, "%s%s.%s: ", def_prefix, name_prefix, pref->name);
      if (pref->type != PREF_PASSWORD)
      {
          desc_lines = g_strsplit(pref_text, "\n", 0);
          for (i = 0; desc_lines[i] != NULL((void*)0); ++i) {
              fprintf(arg->pf, "%s%s\n", i == 0 ? "" : def_prefix, desc_lines[i]);
          }
          if (i == 0)
              fprintf(arg->pf, "\n");
          g_strfreev(desc_lines);
      } else {
          /* We never store password value */
          fprintf(arg->pf, "\n");
      }
      g_free(pref_text);
  }

6888}

6890static void
6891count_non_uat_pref(void *data, void *user_data)
6892{
  pref_t *pref = (pref_t *)data;
  int *arg = (int *)user_data;

  switch (pref->type)
  {
  case PREF_UAT:
  case PREF_DECODE_AS_RANGE:
  case PREF_PROTO_TCP_SNDAMB_ENUM:
      //These types are not written in preference file
      break;
  default:
      (*arg)++;
      break;
  }
6907}

6909int
6910prefs_num_non_uat(module_t *module)
6911{
  int num = 0;

  g_list_foreach(module->prefs, count_non_uat_pref, &num);

  return num;
6917}

6919/*
* Write out all preferences for a module.
*/
6922static unsigned
6923write_module_prefs(module_t *module, void *user_data)
6924{
  write_gui_pref_arg_t *gui_pref_arg = (write_gui_pref_arg_t*)user_data;
  write_pref_arg_t arg;

  /* The GUI module needs to be explicitly called out so it
     can be written out of order */
  if ((module == gui_module) && (gui_pref_arg->is_gui_module != true1))
      return 0;

  /* Write a header for the main modules and GUI sub-modules */
  if (((module->parent == NULL((void*)0)) || (module->parent == gui_module)) &&
      ((prefs_module_has_submodules(module)) ||
       (prefs_num_non_uat(module) > 0) ||
       (module->name == NULL((void*)0)))) {
       if ((module->name == NULL((void*)0)) && (module->parent != NULL((void*)0))) {
          fprintf(gui_pref_arg->pf, "\n####### %s: %s ########\n", module->parent->title, module->title);
       } else {
          fprintf(gui_pref_arg->pf, "\n####### %s ########\n", module->title);
       }
  }

  arg.module = module;
  arg.pf = gui_pref_arg->pf;
  g_list_foreach(arg.module->prefs, pref_write_individual, &arg);

  if (prefs_module_has_submodules(module))
      return prefs_modules_foreach_submodules(module->submodules, write_module_prefs, user_data);

  return 0;
6953}

6955#ifdef _WIN32
6956static void
6957write_registry(void)
6958{
  HKEY hTestKey;
  DWORD data;
  DWORD data_size;
  DWORD ret;

  ret = RegCreateKeyExA(HKEY_CURRENT_USER, REG_HKCU_WIRESHARK_KEY"Software\\Wireshark", 0, NULL((void*)0),
                          REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL((void*)0),
                          &hTestKey, NULL((void*)0));
  if (ret != ERROR_SUCCESS) {
      ws_noisy("Cannot open HKCU "REG_HKCU_WIRESHARK_KEY": 0x%lx", ret)do { if (1) { ws_log_full("Epan", LOG_LEVEL_NOISY, "epan/prefs.c"
, 6968, __func__, "Cannot open HKCU ""Software\\Wireshark"": 0x%lx"
, ret); } } while (0);
      return;
  }

  data = ws_log_console_open;
  data_size = sizeof(DWORD);
  ret = RegSetValueExA(hTestKey, LOG_HKCU_CONSOLE_OPEN"ConsoleOpen", 0, REG_DWORD, (const BYTE *)&data, data_size);
  if (ret == ERROR_SUCCESS) {
      ws_noisy("Wrote "LOG_HKCU_CONSOLE_OPEN" to Windows registry: 0x%lu", data)do { if (1) { ws_log_full("Epan", LOG_LEVEL_NOISY, "epan/prefs.c"
, 6976, __func__, "Wrote ""ConsoleOpen"" to Windows registry: 0x%lu"
, data); } } while (0);
  }
  else {
      ws_noisy("Error writing registry key "LOG_HKCU_CONSOLE_OPEN": 0x%lx", ret)do { if (1) { ws_log_full("Epan", LOG_LEVEL_NOISY, "epan/prefs.c"
, 6979, __func__, "Error writing registry key ""ConsoleOpen"": 0x%lx"
, ret); } } while (0);
  }

  RegCloseKey(hTestKey);
6983}
6984#endif

6986/* Write out "prefs" to the user's preferences file, and return 0.

 If the preferences file path is NULL, write to stdout.

 If we got an error, stuff a pointer to the path of the preferences file
 into "*pf_path_return", and return the errno. */
6992int
6993write_prefs(const char* app_env_var_prefix, char **pf_path_return)
6994{
  char        *pf_path;
  FILE        *pf;
  write_gui_pref_arg_t write_gui_pref_info;

6999#ifdef _WIN32
  write_registry();
7001#endif

  /* To do:
   * - Split output lines longer than MAX_VAL_LEN
   * - Create a function for the preference directory check/creation
   *   so that duplication can be avoided with filter.c
   */

  if (pf_path_return != NULL((void*)0)) {
      pf_path = get_persconffile_path(PF_NAME"preferences", true1, app_env_var_prefix);
      if ((pf = ws_fopenfopen(pf_path, "w")) == NULL((void*)0)) {
          *pf_path_return = pf_path;
          return errno(*__errno_location ());
      }
      g_free(pf_path);
  } else {
      pf = stdoutstdout;
  }

  /*
   * If the preferences file is being written, be sure to write UAT files
   * first that were migrated from the preferences file.
   */
  if (pf_path_return != NULL((void*)0)) {
      if (prefs.filter_expressions_old) {
          char *err = NULL((void*)0);
          prefs.filter_expressions_old = false0;
          if (!uat_save(uat_get_table_by_name("Display expressions"), app_env_var_prefix, &err)) {
              ws_warning("Unable to save Display expressions: %s", err)do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 7029, __func__, "Unable to save Display expressions: %s", err
); } } while (0);
              g_free(err);
          }
      }

      module_t *extcap_module = prefs_find_module("extcap");
      if (extcap_module && !prefs.capture_no_extcap) {
          char *ext_path = get_persconffile_path("extcap.cfg", true1, app_env_var_prefix);
          FILE *extf;
          if ((extf = ws_fopenfopen(ext_path, "w")) == NULL((void*)0)) {
              if (errno(*__errno_location ()) != EISDIR21) {
                  ws_warning("Unable to save extcap preferences \"%s\": %s",do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 7041, __func__, "Unable to save extcap preferences \"%s\": %s"
, ext_path, g_strerror((*__errno_location ()))); } } while (0
)
                      ext_path, g_strerror(errno))do { if (1) { ws_log_full("Epan", LOG_LEVEL_WARNING, "epan/prefs.c"
, 7041, __func__, "Unable to save extcap preferences \"%s\": %s"
, ext_path, g_strerror((*__errno_location ()))); } } while (0
);
              }
              g_free(ext_path);
          } else {
              g_free(ext_path);

              fputs("# Extcap configuration file for Wireshark " VERSION"4.7.0" ".\n"
                    "#\n"
                    "# This file is regenerated each time preferences are saved within\n"
                    "# Wireshark. Making manual changes should be safe, however.\n"
                    "# Preferences that have been commented out have not been\n"
                    "# changed from their default value.\n", extf);

              write_gui_pref_info.pf = extf;
              write_gui_pref_info.is_gui_module = false0;

              write_module_prefs(extcap_module, &write_gui_pref_info);

              fclose(extf);
          }
      }
  }

  fputs("# Configuration file for Wireshark " VERSION"4.7.0" ".\n"
        "#\n"
        "# This file is regenerated each time preferences are saved within\n"
        "# Wireshark. Making manual changes should be safe, however.\n"
        "# Preferences that have been commented out have not been\n"
        "# changed from their default value.\n", pf);

  /*
   * For "backwards compatibility" the GUI module is written first as it's
   * at the top of the file.  This is followed by all modules that can't
   * fit into the preferences read/write API.  Finally the remaining modules
   * are written in alphabetical order (including of course the protocol preferences)
   */
  write_gui_pref_info.pf = pf;
  write_gui_pref_info.is_gui_module = true1;

  write_module_prefs(gui_module, &write_gui_pref_info);

  write_gui_pref_info.is_gui_module = false0;
  prefs_module_list_foreach(prefs_top_level_modules, write_module_prefs, &write_gui_pref_info, true1);

  fclose(pf);

  /* XXX - catch I/O errors (e.g. "ran out of disk space") and return
     an error indication, or maybe write to a new preferences file and
     rename that file on top of the old one only if there are not I/O
     errors. */
  return 0;
7092}

7094/** The col_list is only partly managed by the custom preference API
* because its data is shared between multiple preferences, so
* it's freed here
*/
7098static void
7099free_col_info(GList *list)
7100{
  fmt_data *cfmt;
  GList *list_head = list;

  while (list != NULL((void*)0)) {
      cfmt = (fmt_data *)list->data;

      g_free(cfmt->title);
      g_free(cfmt->custom_fields);
      g_free(cfmt);
      list = g_list_next(list)((list) ? (((GList *)(list))->next) : ((void*)0));
  }
  g_list_free(list_head);
7113}

7115/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/