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Diffstat (limited to 'miscutils/setsid.c')
-rw-r--r-- | miscutils/setsid.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/miscutils/setsid.c b/miscutils/setsid.c new file mode 100644 index 0000000..7df35be --- /dev/null +++ b/miscutils/setsid.c @@ -0,0 +1,46 @@ +/* + * setsid.c -- execute a command in a new session + * Rick Sladkey <jrs@world.std.com> + * In the public domain. + * + * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL> + * - added Native Language Support + * + * 2001-01-18 John Fremlin <vii@penguinpowered.com> + * - fork in case we are process group leader + * + * 2004-11-12 Paul Fox + * - busyboxed + */ + +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include "busybox.h" + +int +setsid_main(int argc, char *argv[]) { + + if (argc < 2) { + bb_show_usage(); + } + + if (getpgrp() == getpid()) { + switch(fork()){ + case -1: + bb_perror_msg_and_die("fork"); + case 0: + break; + default: /* parent */ + exit(0); + } + /* child falls through */ + } + + setsid(); /* no error possible */ + + execvp(argv[1], argv + 1); + + bb_perror_msg_and_die(argv[1]); + +} |