We should use -feature instead of nofeature.

This matches the ifconfig and Gentoo USE flag syntax and is hopefully
easier to read.
Fixes #178.

src/librc/librc-depend.c

@@ -738,7 +738,7 @@ rc_deptree_update(void)
 	RC_STRING *s, *s2, *s2_np, *s3, *s4;
 	char *line = NULL;
 	size_t len = 0;
-	char *depend, *depends, *service, *type, *nosys;
+	char *depend, *depends, *service, *type, *nosys, *onosys;
 	size_t i, k, l;
 	bool retval = true;
 	const char *sys = rc_sys();
@@ -841,17 +841,25 @@ rc_deptree_update(void)
 	 * work for them. This doesn't stop them from being run directly. */
 	if (sys) {
 		len = strlen(sys);
-		nosys = xmalloc(len + 3);
-		nosys[0] = 'n';
-		nosys[1] = 'o';
+		nosys = xmalloc(len + 1);
+		nosys[0] = '-';
 		for (i = 0; i < len; i++)
-			nosys[i + 2] = (char)tolower((unsigned char)sys[i]);
-		nosys[i + 2] = '\0';
+			nosys[i + 1] = (char)tolower((unsigned char)sys[i]);
+		nosys[i + 1] = '\0';
+
+		onosys = xmalloc(len + 3);
+		onosys[0] = 'n';
+		onosys[1] = 'o';
+		for (i = 0; i < len; i++)
+			onosys[i + 2] = (char)tolower((unsigned char)sys[i]);
+		onosys[i + 2] = '\0';
 
 		TAILQ_FOREACH_SAFE(depinfo, deptree, entries, depinfo_np)
 			if ((deptype = get_deptype(depinfo, "keyword")))
 				TAILQ_FOREACH(s, deptype->services, entries)
-					if (strcmp(s->value, nosys) == 0) {
+					if (strcmp(s->value, nosys) == 0 ||
+					    strcmp(s->value, onosys) == 0)
+					{
 						provide = get_deptype(depinfo, "iprovide");
 						TAILQ_REMOVE(deptree, depinfo, entries);
 						TAILQ_FOREACH(di, deptree, entries) {
@@ -870,6 +878,7 @@ rc_deptree_update(void)
 						}
 					}
 		free(nosys);
+		free(onosys);
 	}
 
 	/* Phase 3 - add our providers to the tree */

src/rc/rc.c

@@ -600,8 +600,11 @@ do_stop_services(const char *newlevel, bool parallel, bool going_down)
 			continue;
 		}
 		kwords = rc_deptree_depend(deptree, service->value, "keyword");
-		if (rc_stringlist_find(kwords, "nostop") ||
-		    (going_down && rc_stringlist_find(kwords, "noshutdown")))
+		if (rc_stringlist_find(kwords, "-stop") ||
+		    rc_stringlist_find(kwords, "nostop") ||
+		    (going_down &&
+			(rc_stringlist_find(kwords, "-shutdown") ||
+			    rc_stringlist_find(kwords, "noshutdown"))))
 			nstop = true;
 		else
 			nstop = false;

src/rc/runscript.c

@@ -471,7 +471,8 @@ svc_wait(const char *svc)
 
 	/* Some services don't have a timeout, like fsck */
 	keywords = rc_deptree_depend(deptree, svc, "keyword");
-	if (rc_stringlist_find(keywords, "notimeout"))
+	if (rc_stringlist_find(keywords, "-timeout") ||
+	    rc_stringlist_find(keywords, "notimeout"))
 		forever = true;
 	rc_stringlist_free(keywords);