Example #1
0
static void exec_cmd(int fdin, int fdout,
		     const char** argv,
		     const str* env,
		     const struct passwd* pw)
{
  selfpipe_close();
  dup2(fdin, 0);
  dup2(fdout, 1);
  dup2(fdout, 2);
  close(fdin);
  close(fdout);
  if (!testmode) {
    if (initgroups(pw->pw_name, pw->pw_gid) != 0)
      die1sys(111, "Could not initgroups");
    if (setgid(pw->pw_gid) != 0)
      die1sys(111, "Could not setgid");
    if (setuid(pw->pw_uid) != 0)
      die1sys(111, "Could not setuid");
  }
  if (chdir(pw->pw_dir) != 0)
    die1sys(111, "Could not change directory");
  if (env)
    if ((environ = envstr_make_array(env)) == 0)
      die_oom(111);
  execv(argv[0], (char**)argv);
  die3sys(111, "Could not execute '", argv[0], "'");
  exit(111);
}
Example #2
0
int selfpipe_init (void) {
  if (selfpipe[0] >= 0) return (errno = EBUSY, -1);
  if (pipe(selfpipe) == -1) return -1;
  if ((ndelay_on(selfpipe[1]) == -1)
      || (coe(selfpipe[1]) == -1)
      || (ndelay_on(selfpipe[0]) == -1)
      || (coe(selfpipe[0]) == -1))
    selfpipe_close();
  return selfpipe[0];
}
Example #3
0
void selfpipe_finish (void) {
  selfpipe_close();
}