changeset 371:2cec41ee6eea

Add setsid.
author Rob Landley <rob@landley.net>
date Tue, 05 Jan 2010 13:17:47 -0600
parents c7a26e26ad08
children 9051cb744d0a
files toys/setsid.c
diffstat 1 files changed, 34 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toys/setsid.c	Tue Jan 05 13:17:47 2010 -0600
@@ -0,0 +1,34 @@
+/* vi: set sw=4 ts=4:
+ *
+ * setsid.c - Run program in a new session ID.
+ *
+ * Copyright 2006 Rob Landley <rob@landley.net>
+ *
+ * Not in SUSv3.
+ * See http://www.opengroup.org/onlinepubs/009695399/utilities/
+
+USE_SETSID(NEWTOY(setsid, "^<1t", TOYFLAG_USR|TOYFLAG_BIN))
+
+config SETSID
+	bool "setsid"
+	default y
+	help
+	  usage: setsid [-t] command [args...]
+
+	  Run process in a new session.
+
+	  -t	Grab tty (become foreground process, receiving keyboard signals)
+*/
+
+#include "toys.h"
+
+void setsid_main(void)
+{
+	while (setsid()<0)
+		if (vfork()) _exit(0);
+	if (toys.optflags) {
+		setpgid(0,0);
+		tcsetpgrp(0, getpid());
+	}
+	xexec(toys.optargs);
+}