Wireshark mailing list archives
Re: Extract bytes from a tvbuff_t
From: ronnie sahlberg <ronniesahlberg () gmail com>
Date: Sat, 25 May 2013 14:11:20 -0700
fwrite(extracted, sizeof(extracted), 1, file) extracted is a pointer so sizeof(extracted) is the size of pointers on your platform. Often 4 on 32-bit platforms and 8 on 64-bit. You need something like this : fwrite(extracted, tvb_get_length(tvb, 0), 1, file) On Sat, May 25, 2013 at 1:42 PM, Rion Carter <rion () rubion com> wrote:
Hi, I'm trying to extract raw bytes from a tvbuff_t and am not having much luck. As a simple test I have code which tries to extract the bytes and write it to a file. When I compile and run I get an output file with only 4 bytes in it when I know there is more (extracting certificates). Here is what I've got. Any help is appreciated: guint8* extracted = (guint8*)ep_tvb_memdup(tvb, 0, -1); fwrite(extracted, size of extracted), 1, file); It's been awhile since I used c file io, and I'm pretty new to Wireshark dev. I may be missing obvious or going about this in the wrong fashion. Rion ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
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Current thread:
- Extract bytes from a tvbuff_t Rion Carter (May 25)
- Re: Extract bytes from a tvbuff_t ronnie sahlberg (May 25)
- Re: Extract bytes from a tvbuff_t Rion Carter (May 25)
- HTML mails to text (was: Re: Extract bytes from a tvbuff_t) Jakub Zawadzki (May 25)
- Re: Extract bytes from a tvbuff_t rion (May 26)
- Re: Extract bytes from a tvbuff_t Jakub Zawadzki (May 26)
- Re: Extract bytes from a tvbuff_t rion (May 26)
- Re: Extract bytes from a tvbuff_t Rion Carter (May 25)
- Re: Extract bytes from a tvbuff_t ronnie sahlberg (May 25)