Chih Wang schrieb:
Hi all,
I have a custom dissector in plugin form originally developed on Linux
(Ubuntu on x86). Wireshark ran fine on the system with the plugin.
The code was moved to a Windows XP box verbatim. After setting up the
build environment on the box, I was able to build Wireshark and the
plugin.
However, when I ran Wireshark, I noticed that when I selected some of
the filters from my custom dissector using the Expression button,
Wireshark crashed with memory access error (memory could not be read).
After a little more digging, I realized that Wireshark only crashed when
I selected a field that used VALS macro. All other filters worked fine.
Has anyone experienced this problem?
Here is the code snippet:
static const value_string msgtypenames[] = {
{ 0x10, "Type 16" },
{ 0x01, "Type 1" },
{ 0x03, "Type 3" },
{ 0x05, "Type 5"}
Please terminate the value_string with { 0, NULL}, otherwise you'll end
up in problems!
};
<snip>
static hf_register_info hf[] = {
/*** common fields */
{ &hf_foo_msg_type,
{ "Message TYPE", "foo.type",
FT_UINT8, BASE_DEC,
VALS(msgtypenames), 0x0,
NULL, HFILL }
},
<snip>
My development environment is as follows:
- Wireshark 1.0.2 source
- Windows XP Pro SP2
- VC++ 2005 Express Edition
- Microsoft Platform SDK for Windows Server 2003 R2
Both gtk1 and gtk2 Wireshark binary has the same problem.
Any help will be greatly appreciated.
Best regards,
Chih Wang
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