I found that this gives me the exact number of bytes I'm looking for:
fwrite(tvb, tvb_length(tvb), 1, fp);
Unfortunately, when I check the resulting file in a hex editor the
bytes don't match up with what I see in the WireShark UI.
In the UI I see (Partial):
f0 a5 05 05 d0 6b fa 04 01 00 00 00 01 00 00 00 00 00 00 00 70 6e fa
04 d0 6b
I checked the end of the file to see if the bytes were 'backwards'
and they are not. I'm not quite sure what to do now- am I missing
On 2013-05-25 21:58, Rion Carter wrote:
Thank you! I've been in C# for too many years. I'll try that when I
get back to my desk.
Sent from my BlackBerry 10 smartphone.
FROM: ronnie sahlberg
SENT: Saturday, May 25, 2013 15:12 PM
TO: Developer support list for Wireshark
REPLY TO: Developer support list for Wireshark
SUBJECT: Re: [Wireshark-dev] Extract bytes from a tvbuff_t
fwrite(extracted, sizeof(extracted), 1, file)
extracted is a pointer so sizeof(extracted) is the size of pointers
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 <[email protected]> wrote:
I'm trying to extract raw bytes from a tvbuff_t and am not having
As a simple test I have code which tries to extract the bytes and
to a file. When I compile and run I get an output file with only 4
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
dev. I may be missing obvious or going about this in the wrong