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-rw-r--r--include/applets.h3
-rw-r--r--include/usage.h6
-rw-r--r--miscutils/Config.in6
-rw-r--r--miscutils/Makefile.in1
-rw-r--r--miscutils/setsid.c46
5 files changed, 62 insertions, 0 deletions
diff --git a/include/applets.h b/include/applets.h
index d6aee55..e2fe251 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -558,6 +558,9 @@
#ifdef CONFIG_SETKEYCODES
APPLET(setkeycodes, setkeycodes_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
#endif
+#ifdef CONFIG_SETSID
+ APPLET(setsid, setsid_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
+#endif
#if defined(CONFIG_FEATURE_SH_IS_ASH) && defined(CONFIG_ASH)
APPLET_NOUSAGE("sh", ash_main, _BB_DIR_BIN, _BB_SUID_NEVER)
#elif defined(CONFIG_FEATURE_SH_IS_HUSH) && defined(CONFIG_HUSH)
diff --git a/include/usage.h b/include/usage.h
index 5d7c365..dc8058a 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -2375,6 +2375,12 @@
#define setkeycodes_example_usage \
"$ setkeycodes e030 127\n"
+#define setsid_trivial_usage \
+ "program [arg ...]"
+#define setsid_full_usage \
+ "Runs any program in a new session by calling setsid() before\n" \
+ "exec'ing the rest of its arguments. See setsid(2) for details."
+
#define lash_trivial_usage \
"[FILE]...\n" \
"or: sh -c command [args]..."
diff --git a/miscutils/Config.in b/miscutils/Config.in
index 69a3300..6c68cd0 100644
--- a/miscutils/Config.in
+++ b/miscutils/Config.in
@@ -215,6 +215,12 @@ config CONFIG_STRINGS
strings prints the printable character sequences for each file
specified.
+config CONFIG_SETSID
+ bool "setsid"
+ default n
+ help
+ setsid runs a program in a new session
+
config CONFIG_TIME
bool "time"
default n
diff --git a/miscutils/Makefile.in b/miscutils/Makefile.in
index d4c5ff7..8c53104 100644
--- a/miscutils/Makefile.in
+++ b/miscutils/Makefile.in
@@ -36,6 +36,7 @@ MISCUTILS-$(CONFIG_LAST) += last.o
MISCUTILS-$(CONFIG_MAKEDEVS) += makedevs.o
MISCUTILS-$(CONFIG_MT) += mt.o
MISCUTILS-$(CONFIG_RX) += rx.o
+MISCUTILS-$(CONFIG_SETSID) += setsid.o
MISCUTILS-$(CONFIG_STRINGS) += strings.o
MISCUTILS-$(CONFIG_TIME) += time.o
MISCUTILS-$(CONFIG_WATCHDOG) += watchdog.o
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]);
+
+}