X-Git-Url: http://andersk.mit.edu/gitweb/libyaml.git/blobdiff_plain/0f400264da7f8230f00688a666132c861939906e..aa6f0e8a0a8257181e428c8af720d98e964f69d9:/src/api.c

diff --git a/src/api.c b/src/api.c
index ee170d8..e793b08 100644
--- a/src/api.c
+++ b/src/api.c
@@ -118,7 +118,12 @@ yaml_string_join(
 YAML_DECLARE(int)
 yaml_stack_extend(void **start, void **top, void **end)
 {
-    void *new_start = yaml_realloc(*start, ((char *)*end - (char *)*start)*2);
+    void *new_start;
+
+    if ((char *)*end - (char *)*start >= INT_MAX / 2)
+	return 0;
+
+    new_start = yaml_realloc(*start, ((char *)*end - (char *)*start)*2);
 
     if (!new_start) return 0;
 
@@ -1117,13 +1122,8 @@ error:
 YAML_DECLARE(void)
 yaml_document_delete(yaml_document_t *document)
 {
-    struct {
-        yaml_error_type_t error;
-    } context;
     yaml_tag_directive_t *tag_directive;
 
-    context.error = YAML_NO_ERROR;  /* Eliminate a compliler warning. */
-
     assert(document);   /* Non-NULL document object is expected. */
 
     while (!STACK_EMPTY(&context, document->nodes)) {