/*  * linux/x86 exit(0) - 6 bytes  * Febriyanto Nugroho  */   #include <stdio.h>   char shellcode[] = "\xf7\xf0"                   "\xcd\x80"                   "\xeb\xfa";   int main(int argc, char **argv) { asm("jmp %0;" : "=m" (shellcode)); }