compiled-tools/setpgrp.c

   1
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <unistd.h>
   5 #include <errno.h>
   6 #include <err.h>
   7
   8
   9 int main(int argc, char** argv)
  10 {
  11         if(argc < 2)
  12         {
  13                 errx(-1, "Usage: setpgrp <command> [arguments]");
  14         }
  15
  16         /*
  17         The System V-style setpgrp(), which takes no arguments, is equivalent to setpgid(0, 0).
  18         */
  19
  20         int error = setpgid(0, 0);
  21
  22         if(error != 0)
  23         {
  24                 perror("setpgid");
  25                 exit(error);
  26         }
  27
  28         execvp(argv[1], &argv[1]);
  29         exit(127);
  30 }