Hello everybody,
I'm coding a test program for ARP protocol, and i don't know why i'm getting a SIGSEGV, i traced it with gdb and it says it's due to the memcpy function from /lib/libc.so.6.
This segmentation fault came when i decided to change the protocol headers, i was using a buffer to store two structures, containing ethernet & arp headers, and i decided to use just one structure, containing both headers structure.
This is the code:
And i get the segmentation fault in the main program when i use memcpy to store the addresses in their respective field, here's an example:
Please, could anyone tell me what am i doing wrong? This is a weird error, gcc gives me no warnings.
Oh!, i changed the memcpy function to strncpy, strcpy, and i keep getting the same SIGSEGV.
Run a debugger on the file to get the line in the ocde where the segfault occurred.
gcc example:
the ba listing - the top one in your code (has a line number) - not in a library - is the point in your code where the problem was triggered.
And i get the segmentation fault in the main program when i use memcpy to store the addresses in their respective field, here's an example:
Please, could anyone tell me what am i doing wrong? This is a weird error, gcc gives me no warnings.
Oh!, i changed the memcpy function to strncpy, strcpy, and i keep getting the same SIGSEGV.
I'll appreciate any answers, thank you.
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