const correctness

6 files changed, 55 insertions, 99 deletions

diff --git a/src/librc-depend.c b/src/librc-depend.c
index c00f4fa..69c06c2 100644
--- a/src/librc-depend.c
+++ b/src/librc-depend.c
@@ -351,13 +351,14 @@ static char **get_provided (rc_depinfo_t *deptree, rc_depinfo_t *depinfo,
 	return (providers.list);
 }
 
-static void visit_service (rc_depinfo_t *deptree, char **types,
+static void visit_service (rc_depinfo_t *deptree, const char * const *types,
 						   struct lhead *sorted, struct lhead *visited,
 						   rc_depinfo_t *depinfo,
 						   const char *runlevel, int options)
 {
 	int i, j, k;
-	char *lp, *item;
+	char *lp;
+	const char *item;
 	char *service;
 	rc_depinfo_t *di;
 	rc_deptype_t *dt;
@@ -441,13 +442,13 @@ static void visit_service (rc_depinfo_t *deptree, char **types,
 }
 
 char **rc_deptree_depends (rc_depinfo_t *deptree,
-						   char **types, char **services,
+						   const char * const *types, const char * const *services,
 						   const char *runlevel, int options)
 {  
 	struct lhead sorted;
 	struct lhead visited;
 	rc_depinfo_t *di;
-	char *service;
+	const char *service;
 	int i;
 
 	if (! deptree || ! services)
@@ -476,11 +477,11 @@ char **rc_deptree_depends (rc_depinfo_t *deptree,
 }
 librc_hidden_def(rc_deptree_depends)
 
+static const const char *order_types[] = { "ineed", "iuse", "iafter", NULL };
 char **rc_deptree_order (rc_depinfo_t *deptree, const char *runlevel,
 						 int options)
 {
 	char **list = NULL;
-	char **types = NULL;
 	char **services = NULL;
 	bool reverse = false;
 	char **tmp = NULL;
@@ -525,13 +526,10 @@ char **rc_deptree_order (rc_depinfo_t *deptree, const char *runlevel,
 
 	/* Now we have our lists, we need to pull in any dependencies
 	   and order them */
-	rc_strlist_add (&types, "ineed");
-	rc_strlist_add (&types, "iuse");
-	rc_strlist_add (&types, "iafter");
-	services = rc_deptree_depends (deptree, types, list, runlevel,
+	services = rc_deptree_depends (deptree, order_types, (const char **) list,
+								   runlevel,
 								   RC_DEP_STRICT | RC_DEP_TRACE | options);
 	rc_strlist_free (list);
-	rc_strlist_free (types);
 
 	if (reverse)
 		rc_strlist_reverse (services);
diff --git a/src/rc-depend.c b/src/rc-depend.c
index 8a0f189..190d5c8 100644
--- a/src/rc-depend.c
+++ b/src/rc-depend.c
@@ -114,7 +114,8 @@ int rc_depend (int argc, char **argv)
 		list = NULL;
 		rc_strlist_add (&list, argv[optind]);
 		errno = 0;
-		depends = rc_deptree_depends (deptree, NULL, list, runlevel, 0);
+		depends = rc_deptree_depends (deptree, NULL, (const char **) list,
+									  runlevel, 0);
 		if (! depends && errno == ENOENT)
 			eerror ("no dependency info for service `%s'", argv[optind]);
 		else
@@ -140,7 +141,8 @@ int rc_depend (int argc, char **argv)
 		rc_strlist_add (&types, "iuse");
 	}
 
-	depends = rc_deptree_depends (deptree, types, services, runlevel, options);
+	depends = rc_deptree_depends (deptree, (const char **) types,
+								  (const char **) services, runlevel, options);
 
 	if (depends) {
 		STRLIST_FOREACH (depends, service, i) {
diff --git a/src/rc-status.c b/src/rc-status.c
index cb62e7c..324177c 100644
--- a/src/rc-status.c
+++ b/src/rc-status.c
@@ -19,7 +19,7 @@
 
 #define APPLET "rc-status"
 
-static char const *types[] = { "ineed", "iuse", "iafter", NULL };
+static const char *types_nua[] = { "ineed", "iuse", "iafter", NULL };
 
 static void print_level (char *level)
 {
@@ -146,7 +146,8 @@ int rc_status (int argc, char **argv)
 		print_level (level);
 		services = rc_services_in_runlevel (level);
 		if (deptree) {
-			ordered = rc_deptree_depends (deptree, (char **) types, services,
+			ordered = rc_deptree_depends (deptree, types_nua,
+										  (const char **) services,
 										  level, depopts);
 			rc_strlist_free (services);
 			services = ordered;
diff --git a/src/rc.c b/src/rc.c
index 773bb45..4906d6a 100644
--- a/src/rc.c
+++ b/src/rc.c
@@ -72,7 +72,6 @@ static char **coldplugged_services = NULL;
 static char **stop_services = NULL;
 static char **start_services = NULL;
 static rc_depinfo_t *deptree = NULL;
-static char **types = NULL;
 static char *tmp = NULL;
 
 struct termios *termios_orig = NULL;
@@ -84,6 +83,9 @@ typedef struct pidlist
 } pidlist_t;
 static pidlist_t *service_pids = NULL;
 
+static const char *types_n[] = { "needsme", NULL };
+static const char *types_nua[] = { "ineed", "iuse", "iafter", NULL };
+
 static void cleanup (void)
 {
 	if (applet && strcmp (applet, "rc") == 0) {
@@ -108,7 +110,6 @@ static void cleanup (void)
 		rc_strlist_free (stop_services);
 		rc_strlist_free (start_services);
 		rc_deptree_free (deptree);
-		rc_strlist_free (types);
 
 		/* Clean runlevel start, stop markers */
 		if (! rc_in_plugin) {
@@ -1153,17 +1154,11 @@ int main (int argc, char **argv)
 	rc_strlist_join (&stop_services, tmplist);
 	rc_strlist_free (tmplist);
 
-	types = NULL;
-	rc_strlist_add (&types, "ineed");
-	rc_strlist_add (&types, "iuse");
-	rc_strlist_add (&types, "iafter");
-
-	deporder = rc_deptree_depends (deptree, types, stop_services,
+	deporder = rc_deptree_depends (deptree, types_nua,
+								   (const char **) stop_services,
 								   runlevel, depoptions | RC_DEP_STOP);
 
 	rc_strlist_free (stop_services);
-	rc_strlist_free (types);
-	types = NULL;
 	stop_services = deporder;
 	deporder = NULL;
 	rc_strlist_reverse (stop_services);
@@ -1212,8 +1207,6 @@ int main (int argc, char **argv)
 	if (going_down)
 		rc_runlevel_set (newlevel);
 
-	types = NULL;
-	rc_strlist_add (&types, "needsme");
 	/* Now stop the services that shouldn't be running */
 	STRLIST_FOREACH (stop_services, service, i) {
 		bool found = false;
@@ -1274,7 +1267,8 @@ int main (int argc, char **argv)
 		/* We got this far! Or last check is to see if any any service that
 		   going to be started depends on us */
 		rc_strlist_add (&stopdeps, service);
-		deporder = rc_deptree_depends (deptree, types, stopdeps,
+		deporder = rc_deptree_depends (deptree, types_n,
+									   (const char **) stopdeps,
 									   runlevel, RC_DEP_STRICT);
 		rc_strlist_free (stopdeps);
 		stopdeps = NULL;
@@ -1298,8 +1292,6 @@ int main (int argc, char **argv)
 				wait_pid (pid);
 		}
 	}
-	rc_strlist_free (types);
-	types = NULL;
 
 	/* Wait for our services to finish */
 	wait_for_services ();
@@ -1341,13 +1333,9 @@ int main (int argc, char **argv)
 		rc_service_mark (service, RC_SERVICE_COLDPLUGGED);
 
 	/* Order the services to start */
-	rc_strlist_add (&types, "ineed");
-	rc_strlist_add (&types, "iuse");
-	rc_strlist_add (&types, "iafter");
-	deporder = rc_deptree_depends (deptree, types, start_services,
+	deporder = rc_deptree_depends (deptree, types_nua,
+								   (const char **) start_services,
 								   runlevel, depoptions | RC_DEP_START);
-	rc_strlist_free (types);
-	types = NULL;
 	rc_strlist_free (start_services);
 	start_services = deporder;
 	deporder = NULL;
diff --git a/src/rc.h b/src/rc.h
index 6040345..1a5368a 100644
--- a/src/rc.h
+++ b/src/rc.h
@@ -264,8 +264,9 @@ rc_depinfo_t *rc_deptree_load (void);
  * @param services to check
  * @param options to pass
  * @return NULL terminated list of services in order */
-char **rc_deptree_depends (rc_depinfo_t *deptree, char **types,
-						   char **services, const char *runlevel, int options);
+char **rc_deptree_depends (rc_depinfo_t *deptree, const char * const *types,
+						   const char * const *services, const char *runlevel,
+						   int options);
 
 /*! List all the services that should be stoppned and then started, in order,
  * for the given runlevel, including sysinit and boot services where
diff --git a/src/runscript.c b/src/runscript.c
index 852194b..a375b70 100644
--- a/src/runscript.c
+++ b/src/runscript.c
@@ -51,10 +51,8 @@ static char *exclusive = NULL;
 static char *mtime_test = NULL;
 static rc_depinfo_t *deptree = NULL;
 static char **services = NULL;
-static char **svclist = NULL;
 static char **tmplist = NULL;
 static char **providelist = NULL;
-static char **types = NULL;
 static char **restart_services = NULL;
 static char **need_services = NULL;
 static char **use_services = NULL;
@@ -73,6 +71,15 @@ static int master_tty = -1;
 
 extern char **environ;
 
+static const char *types_b[] = { "broken", NULL };
+static const char *types_n[] = { "ineed", NULL };
+static const char *types_nu[] = { "ineed", "iuse", NULL };
+static const char *types_nua[] = { "ineed", "iuse", "iafter", NULL };
+static const char *types_p[] = { "iprovide", NULL };
+
+static const char *types_m[] = { "needsme", NULL };
+static const char *types_mua[] = { "needsme", "usesme", "beforeme", NULL };
+
 #ifdef __linux__
 static void (*selinux_run_init_old) (void);
 static void (*selinux_run_init_new) (int argc, char **argv);
@@ -299,8 +306,6 @@ static void cleanup (void)
 	rc_plugin_unload ();
 	rc_deptree_free (deptree);
 	rc_strlist_free (services);
-	rc_strlist_free (types);
-	rc_strlist_free (svclist);
 	rc_strlist_free (providelist);
 	rc_strlist_free (need_services);
 	rc_strlist_free (use_services);
@@ -580,6 +585,7 @@ static void svc_start (bool deps)
 	int i;
 	int j;
 	int depoptions = RC_DEP_TRACE;
+	const char *svcl[] = { applet, NULL };
 	rc_service_state_t state;
 
 	hook_out = RC_HOOK_SERVICE_START_OUT;
@@ -617,14 +623,8 @@ static void svc_start (bool deps)
 		if (! deptree && ((deptree = _rc_deptree_load ()) == NULL))
 			eerrorx ("failed to load deptree");
 
-		rc_strlist_free (types);
-		types = NULL;
-		rc_strlist_add (&types, "broken");
-		rc_strlist_free (svclist);
-		svclist = NULL;
-		rc_strlist_add (&svclist, applet);
 		rc_strlist_free (services);
-		services = rc_deptree_depends (deptree, types, svclist, softlevel, 0);
+		services = rc_deptree_depends (deptree, types_b, svcl, softlevel, 0);
 		if (services) {
 			eerrorn ("ERROR: `%s' needs ", applet);
 			STRLIST_FOREACH (services, svc, i) {
@@ -637,16 +637,12 @@ static void svc_start (bool deps)
 		rc_strlist_free (services);
 		services = NULL;
 
-		rc_strlist_free (types);
-		types = NULL;
-		rc_strlist_add (&types, "ineed");
 		rc_strlist_free (need_services);
-		need_services = rc_deptree_depends (deptree, types, svclist,
+		need_services = rc_deptree_depends (deptree, types_n, svcl,
 										softlevel, depoptions);
 
-		rc_strlist_add (&types, "iuse");
 		rc_strlist_free (use_services);
-		use_services = rc_deptree_depends (deptree, types, svclist,
+		use_services = rc_deptree_depends (deptree, types_nu, svcl,
 									   softlevel, depoptions);
 
 		if (! rc_runlevel_starting ()) {
@@ -659,9 +655,8 @@ static void svc_start (bool deps)
 		}
 
 		/* Now wait for them to start */
-		rc_strlist_add (&types, "iafter");
-		services = rc_deptree_depends (deptree, types, svclist,
-								   softlevel, depoptions);
+		services = rc_deptree_depends (deptree, types_nua, svcl,
+									   softlevel, depoptions);
 
 		/* We use tmplist to hold our scheduled by list */
 		rc_strlist_free (tmplist);
@@ -712,18 +707,13 @@ static void svc_start (bool deps)
 			rc_service_mark (service, RC_SERVICE_STOPPED);
 			unlink_mtime_test ();
 
-			rc_strlist_free (types);
-			types = NULL;
-			rc_strlist_add (&types, "iprovide");
 			STRLIST_FOREACH (tmplist, svc, i) {
+				const char *sl[] = { svc, NULL };
 				rc_service_schedule_start (svc, service);
 
-				rc_strlist_free (svclist);
-				svclist = NULL;
-				rc_strlist_add (&svclist, svc);
 				rc_strlist_free (providelist);
-				providelist = rc_deptree_depends (deptree, types, svclist,
-											  softlevel, depoptions);
+				providelist = rc_deptree_depends (deptree, types_p, sl,
+												  softlevel, depoptions);
 				STRLIST_FOREACH (providelist, svc2, j) 
 					rc_service_schedule_start (svc2, service);
 
@@ -749,10 +739,6 @@ static void svc_start (bool deps)
 
 		rc_strlist_free (services);
 		services = NULL;
-		rc_strlist_free (types);
-		types = NULL;
-		rc_strlist_free (svclist);
-		svclist = NULL;
 	}
 
 	if (ibsave)
@@ -791,14 +777,8 @@ static void svc_start (bool deps)
 	services = NULL;
 
 	/* Do the same for any services we provide */
-	rc_strlist_free (types);
-	types = NULL;
-	rc_strlist_add (&types, "iprovide");
-	rc_strlist_free (svclist);
-	svclist = NULL;
-	rc_strlist_add (&svclist, applet);
 	rc_strlist_free (tmplist);
-	tmplist = rc_deptree_depends (deptree, types, svclist, softlevel, depoptions);
+	tmplist = rc_deptree_depends (deptree, types_p, svcl, softlevel, depoptions);
 
 	STRLIST_FOREACH (tmplist, svc2, j) {
 		rc_strlist_free (services);
@@ -815,6 +795,8 @@ static void svc_start (bool deps)
 static void svc_stop (bool deps)
 {
 	bool stopped;
+	const char *svcl[] = { applet, NULL };
+
 	rc_service_state_t state = rc_service_state (service);
 
 	hook_out = RC_HOOK_SERVICE_STOP_OUT;
@@ -857,17 +839,11 @@ static void svc_stop (bool deps)
 		if (! deptree && ((deptree = _rc_deptree_load ()) == NULL))
 			eerrorx ("failed to load deptree");
 
-		rc_strlist_free (types);
-		types = NULL;
-		rc_strlist_add (&types, "needsme");
-		rc_strlist_free (svclist);
-		svclist = NULL;
-		rc_strlist_add (&svclist, applet);
 		rc_strlist_free (tmplist);
 		tmplist = NULL;
 		rc_strlist_free (services);
-		services = rc_deptree_depends (deptree, types, svclist,
-								   softlevel, depoptions);
+		services = rc_deptree_depends (deptree, types_m, svcl,
+									   softlevel, depoptions);
 		rc_strlist_reverse (services);
 		STRLIST_FOREACH (services, svc, i) {
 			rc_service_state_t svcs = rc_service_state (svc);
@@ -915,10 +891,8 @@ static void svc_stop (bool deps)
 
 		/* We now wait for other services that may use us and are stopping
 		   This is important when a runlevel stops */
-		rc_strlist_add (&types, "usesme");
-		rc_strlist_add (&types, "ibefore");
-		services = rc_deptree_depends (deptree, types, svclist,
-								   softlevel, depoptions);
+		services = rc_deptree_depends (deptree, types_mua, svcl,
+									   softlevel, depoptions);
 		STRLIST_FOREACH (services, svc, i) {
 			if (rc_service_state (svc) & RC_SERVICE_STOPPED)
 				continue;
@@ -927,8 +901,6 @@ static void svc_stop (bool deps)
 
 		rc_strlist_free (services);
 		services = NULL;
-		rc_strlist_free (types);
-		types = NULL;
 	}
 
 	if (ibsave)
@@ -957,7 +929,6 @@ static void svc_stop (bool deps)
 		unlink (exclusive);
 	hook_out = 0;
 	rc_plugin_run (RC_HOOK_SERVICE_STOP_OUT, applet);
-
 }
 
 static void svc_restart (bool deps)
@@ -1213,6 +1184,8 @@ int runscript (int argc, char **argv)
 				   strcmp (optarg, "ibefore") == 0 ||
 				   strcmp (optarg, "iprovide") == 0) {
 			int depoptions = RC_DEP_TRACE;
+			const char *t[] = { optarg, NULL };
+			const char *s[] = { applet, NULL };
 
 			if (rc_env_bool ("RC_DEPEND_STRICT"))
 				depoptions |= RC_DEP_STRICT;
@@ -1220,15 +1193,8 @@ int runscript (int argc, char **argv)
 			if (! deptree && ((deptree = _rc_deptree_load ()) == NULL))
 				eerrorx ("failed to load deptree");
 
-			rc_strlist_free (types);
-			types = NULL;
-			rc_strlist_add (&types, optarg);
-			rc_strlist_free (svclist);
-			svclist = NULL;
-			rc_strlist_add (&svclist, applet);
 			rc_strlist_free (services);
-			services = rc_deptree_depends (deptree, types, svclist,
-									   softlevel, depoptions);
+			services = rc_deptree_depends (deptree, t, s, softlevel, depoptions);
 			STRLIST_FOREACH (services, svc, i)
 				printf ("%s%s", i == 1 ? "" : " ", svc);
 			if (services)