sbase/setsid.c

42 lines
624 B
C
Raw Normal View History

/* See LICENSE file for copyright and license details. */
2013-10-07 15:37:23 +00:00
#include <errno.h>
2013-08-21 11:56:26 +00:00
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s cmd [arg ...]\n", argv0);
}
int
main(int argc, char *argv[])
{
ARGBEGIN {
default:
usage();
} ARGEND;
if (argc < 1)
usage();
if(getpgrp() == getpid()) {
switch(fork()){
case -1:
eprintf("fork:");
case 0:
break;
default:
return EXIT_SUCCESS;
2013-08-21 11:56:26 +00:00
}
}
if(setsid() < 0)
eprintf("setsid:");
execvp(argv[0], argv);
eprintf("execvp:");
2013-10-07 15:37:23 +00:00
return (errno == ENOENT) ? 127 : 126;
2013-08-21 11:56:26 +00:00
}