Ethereal-dev: [Ethereal-dev] Could it be solution to priting error in pop windows
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From: "Raman Singla" <ramans@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 7 Jun 2006 17:36:49 +0530
----- Original Message ----- From: "Raman Singla" <ramans@xxxxxxxxxxxxxxxxxxx> To: "Ethereal development" <ethereal-dev@xxxxxxxxxxxx> Sent: 2006 Jun 07 4:31 AM Subject: [Ethereal-dev] Could it be solution to priting error in pop windows > Hi all, > few days back, i asked for any solution for how to print errors in pop-up > windows in dissector section. > > I m new to computer programming & ofcause dealing with open source. Here is > an solution which i came across. Kindly give ur comments as this is not a > professional solution its just an twist of existing components. > > solution : > since we can access err & err_info in wiretap for error no & error message > (they will be printed in a popup window) error message display is written > here in this case file.c for all errcode in wtap.h > > so why have a err_no & err_info in our pseudo header. since info in pseudo > header we have access in dissector via pinfo. if error is there in dissector > then set this err_no & err_info & return (since dissector is void type). > > we can check this this erro_no in seek_read/read & if found any err_no set > it will simplay set actual errno & err_info passed by ethereal & it will > return from seek_read/read by returning FALSE. > > to me etheral works like this : > > in wiretap : > 1. go to open (check for file file format & do initialization) then perform > read function repeteadly untill it read a full file. (if we choose open > recent then this step is omitted) > 2. go to open. > 4. run read. > 5. go to corresponding dissector. > 5. run seek_read. > 6. go to dissector. > 7 run read & go to dissector until it has read whole packets. > > 8. now run seek read & dissectors (based on user selection ) > > (of cause we can speed up the operation in case of large file by having > checks eg. colum info is fed during read & not seek_read & decoding of hex > is done in seek_read not in read. so we can have checks accordingly by > knowing from where our contorl is coming (seek/read) > well this check will be applicable only for dissector which will be called > directly after seek/read i.e. after wiretap. > > Kindy post ur comments is approaches like these are gud since there is no > provision of printing error in dissector right now in ethereal. or how can i > do it more refined way. > > regards, > raman > > > > > > > ----- Original Message ----- > From: "Raman Singla" <ramans@xxxxxxxxxxxxxxxxxxx> > To: <jhoger@xxxxxxxxx>; "Ethereal development" <ethereal-dev@xxxxxxxxxxxx> > Sent: 2006 Jun 02 4:42 AM > Subject: Re: [Ethereal-dev] error in printing error message using > simple_dialog > > > > hi, > > there is a file (trace.def) which is having all the structure format > telling > > how the hexdumps should be decode for gprs messages > > > > suppose system is unable to open this file, there should be a error > message > > indicating that error file is missing. > > > > Here when i say error messages they are not with respect to packets, they > > are with respect to other issues. before becoding begins it will ensure > > these parameters & if it unable to set an working environment it will pop > up > > an error message. ofcause packet-related error will be using > proto_add_text. > > > > Similarly in wiretap (i have written for a new capture file format, if > > endian type is missing (file can be in either big/little format then it > > won't proceed further & prompt a error messsage) > > > > simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, dec_err_msg); > > does this with appropriate paramaters. but here in my case it is giving > > error on both platform linux/win. > > > > error on LINUX > > it is giving an linking error. > > epan/./libs/libethereal.so: undefined reference to 'simple_dialog' > > > > err on WINDOWS > > dissectors.lib(packet-dec.obj) : error LNK2001: unresolved external symbol > > _simp > > le_dialog > > libethereal.dll : fatal error LNK1120: 1 unresolved externals > > NMAKE : fatal error U1077: 'link' : return code '0x460' > > Stop. > > NMAKE : fatal error U1077: '"C:\Apps_32\MICROSOFT VISUAL > > STUDIO\VC98\BIN\NMAKE.E > > XE"' : return code '0x2' > > Stop. > > > > regards, > > raman > > > > ----- Original Message ----- > > From: "John R." <jhoger@xxxxxxxxx> > > To: "Ethereal development" <ethereal-dev@xxxxxxxxxxxx> > > Sent: 2006 Jun 02 4:23 AM > > Subject: Re: [Ethereal-dev] error in printing error message using > > simple_dialog > > > > > > > On 6/1/06, Raman Singla <ramans@xxxxxxxxxxxxxxxxxxx> wrote: > > > > Hi, > > > > > > > > I want to use simple_dialog function defined in "gtk/simple_dialog.c" > > for > > > > printing error messages. > > > > > > Upon what event would trigger such a dialog? Every time the packet is > > > selected? It seems like a very bad idea since you would end up stuck > > > in a dialog box every time the packet is dissected. If you had a bunch > > > of these packets, you would end up stuck in dialog boxes as you try to > > > navigate between packets in the display.... yikes! > > > > > > -- John. > > > _______________________________________________ > > > Ethereal-dev mailing list > > > Ethereal-dev@xxxxxxxxxxxx > > > http://www.ethereal.com/mailman/listinfo/ethereal-dev > > > > _______________________________________________ > > Ethereal-dev mailing list > > Ethereal-dev@xxxxxxxxxxxx > > http://www.ethereal.com/mailman/listinfo/ethereal-dev > > _______________________________________________ > Ethereal-dev mailing list > Ethereal-dev@xxxxxxxxxxxx > http://www.ethereal.com/mailman/listinfo/ethereal-dev _______________________________________________ Ethereal-dev mailing list Ethereal-dev@xxxxxxxxxxxx http://www.ethereal.com/mailman/listinfo/ethereal-dev
- References:
- Re: [Ethereal-dev] how to print error messages in dissector
- From: Jaap Keuter
- [Ethereal-dev] error in printing error message using simple_dialog
- From: Raman Singla
- Re: [Ethereal-dev] error in printing error message using simple_dialog
- From: John R.
- Re: [Ethereal-dev] error in printing error message using simple_dialog
- From: Raman Singla
- [Ethereal-dev] Could it be solution to priting error in pop windows
- From: Raman Singla
- Re: [Ethereal-dev] how to print error messages in dissector
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