From f28763d4928a5ffb2c288388299ccf69ee26f26e Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Wed, 4 Jul 2007 16:02:01 +0000
Subject: [PATCH] As we're running each plugin in a fork, we need to call our
 cleanup code so we don't leak memory. To this extent, we now have the global
 boolean rc_in_plugin and the cleanup code can act accordingly.

---
 src/rc-plugin.c | 13 ++++++++++++-
 src/rc-plugin.h |  4 ++++
 src/rc.c        | 12 +++++++-----
 src/runscript.c |  7 ++++---
 4 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/src/rc-plugin.c b/src/rc-plugin.c
index 66ffeb5c..5970dc58 100644
--- a/src/rc-plugin.c
+++ b/src/rc-plugin.c
@@ -19,6 +19,8 @@
 #include "rc-plugin.h"
 #include "strlist.h"
 
+bool rc_in_plugin = false;
+
 typedef struct plugin
 {
 	char *name;
@@ -49,6 +51,10 @@ void rc_plugin_load (void)
 	int i;
 	plugin_t *plugin = plugins;
 
+	/* Don't load plugins if we're in one */
+	if (rc_in_plugin)
+		return;
+
 	/* Ensure some sanity here */
 	rc_plugin_unload ();
 
@@ -103,6 +109,10 @@ void rc_plugin_run (rc_hook_t hook, const char *value)
 {
 	plugin_t *plugin = plugins;
 
+	/* Don't run plugins if we're in one */
+	if (rc_in_plugin)
+		return;
+
 	while (plugin) {
 		if (plugin->hook) {
 			int i;
@@ -135,12 +145,13 @@ void rc_plugin_run (rc_hook_t hook, const char *value)
 			if (pid == 0) {
 				int retval;
 
+				rc_in_plugin = true;
 				close (pfd[0]);
 				rc_environ_fd = fdopen (pfd[1], "w");
 				retval = plugin->hook (hook, value);
 				fclose (rc_environ_fd);
 				rc_environ_fd = NULL;
-				_exit (retval);
+				exit (retval);
 			} else {
 				char buffer[RC_LINEBUFFER];
 				char *token;
diff --git a/src/rc-plugin.h b/src/rc-plugin.h
index 15d46213..b15a11c7 100644
--- a/src/rc-plugin.h
+++ b/src/rc-plugin.h
@@ -8,6 +8,10 @@
 #ifndef __LIBRC_PLUGIN_H__
 #define __LIBRC_PLUGIN_H__
 
+/* A simple flag to say if we're in a plugin proccess or not.
+ * Mainly used in atexit code. */
+extern bool rc_in_plugin;
+
 void rc_plugin_load ();
 void rc_plugin_unload ();
 void rc_plugin_run (rc_hook_t, const char *value);
diff --git a/src/rc.c b/src/rc.c
index 2e2a2e04..ab104a98 100644
--- a/src/rc.c
+++ b/src/rc.c
@@ -83,7 +83,7 @@ static void cleanup (void)
 
 	rc_plugin_unload ();
 
-	if (termios_orig) {
+	if (! rc_in_plugin && termios_orig) {
 		tcsetattr (STDIN_FILENO, TCSANOW, termios_orig);
 		free (termios_orig);
 	}
@@ -103,10 +103,12 @@ static void cleanup (void)
 	rc_strlist_free (types);
 
 	/* Clean runlevel start, stop markers */
-	if (rc_is_dir (RC_SVCDIR "softscripts.new"))
-		rc_rm_dir (RC_SVCDIR "softscripts.new", true);
-	if (rc_is_dir (RC_SVCDIR "softscripts.old"))
-		rc_rm_dir (RC_SVCDIR "softscripts.old", true);
+	if (! rc_in_plugin) {
+		if (rc_is_dir (RC_SVCDIR "softscripts.new"))
+			rc_rm_dir (RC_SVCDIR "softscripts.new", true);
+		if (rc_is_dir (RC_SVCDIR "softscripts.old"))
+			rc_rm_dir (RC_SVCDIR "softscripts.old", true);
+	}
 
 	free (applet);
 }
diff --git a/src/runscript.c b/src/runscript.c
index ad2d69a8..94df6fcc 100644
--- a/src/runscript.c
+++ b/src/runscript.c
@@ -234,7 +234,7 @@ static void start_services (char **list) {
 
 static void cleanup (void)
 {
-	if (prefix_locked)
+	if (! rc_in_plugin && prefix_locked)
 		unlink (PREFIX_LOCK);
 
 	/* Flush our buffered output if any */
@@ -259,7 +259,7 @@ static void cleanup (void)
 	rc_strlist_free (tmplist);
 	free (ibsave);
 
-	if (in_control ()) {
+	if (! rc_in_plugin && in_control ()) {
 		if (rc_service_state (applet, rc_service_stopping)) {
 			/* If the we're shutting down, do it cleanly */
 			if ((softlevel &&
@@ -287,7 +287,8 @@ static void cleanup (void)
 
 	if (mtime_test)
 	{
-		unlink (mtime_test);
+		if (! rc_in_plugin)
+			unlink (mtime_test);
 		free (mtime_test);
 	}
 	free (exclusive);