scanner: Make sure arguments have names.

diff --git a/src/scanner.c b/src/scanner.c
index 69fefb3..47c22cb 100644 (file)
--- a/src/scanner.c
+++ b/src/scanner.c
@@ -350,6 +350,9 @@ start_element(void *data, const char *element_name, const char **atts)
 
                ctx->message = message;
        } else if (strcmp(element_name, "arg") == 0) {
+               if (name == NULL)
+                       fail(ctx, "no argument name given");
+
                arg = malloc(sizeof *arg);
                arg->name = strdup(name);