Merge pull request #1469 from poettering/even-more-fixed

Even more fixes

src/activate/activate.c

@@ -361,6 +361,11 @@ static int parse_argv(int argc, char *argv[]) {
                         break;
 
                 case ARG_FDNAME:
+                        if (!fdname_is_valid(optarg)) {
+                                log_error("File descriptor name %s is not valid, refusing.", optarg);
+                                return -EINVAL;
+                        }
+
                         arg_fdname = optarg;
                         break;
 

src/basic/strv.c

@@ -784,5 +784,5 @@ rollback:
                 free(nl[j]);
 
         nl[k] = NULL;
-        return NULL;
+        return -ENOMEM;
 }

src/basic/util.c

@@ -6849,12 +6849,14 @@ int version(void) {
 bool fdname_is_valid(const char *s) {
         const char *p;
 
-        /* Validates a name for $LISTEN_NAMES. We basically allow
+        /* Validates a name for $LISTEN_FDNAMES. We basically allow
          * everything ASCII that's not a control character. Also, as
          * special exception the ":" character is not allowed, as we
-         * use that as field separator in $LISTEN_NAMES.
+         * use that as field separator in $LISTEN_FDNAMES.
          *
-         * Note that the empty string is explicitly allowed here.*/
+         * Note that the empty string is explicitly allowed
+         * here. However, we limit the length of the names to 255
+         * characters. */
 
         if (!s)
                 return false;