Accept git aliases outside a git repository

[git.git] / tag.c

diff --git a/tag.c b/tag.c
index f62bcdd994509323080683ce19c1a4d8241f9dec..4470d2bf78e1fbb00d00e487f41daa4373cf48e1 100644 (file)
--- a/tag.c
+++ b/tag.c
@@ -9,7 +9,10 @@ const char *tag_type = "tag";
 struct object *deref_tag(struct object *o, const char *warn, int warnlen)
 {
        while (o && o->type == OBJ_TAG)
-               o = parse_object(((struct tag *)o)->tagged->sha1);
+               if (((struct tag *)o)->tagged)
+                       o = parse_object(((struct tag *)o)->tagged->sha1);
+               else
+                       o = NULL;
        if (!o && warn) {
                if (!warnlen)
                        warnlen = strlen(warn);
@@ -39,6 +42,7 @@ int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
        unsigned char sha1[20];
        const char *type_line, *tag_line, *sig_line;
        char type[20];
+       const char *start = data;
 
         if (item->object.parsed)
                 return 0;
@@ -53,11 +57,11 @@ int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
        if (memcmp("\ntype ", type_line-1, 6))
                return -1;
 
-       tag_line = strchr(type_line, '\n');
+       tag_line = memchr(type_line, '\n', size - (type_line - start));
        if (!tag_line || memcmp("tag ", ++tag_line, 4))
                return -1;
 
-       sig_line = strchr(tag_line, '\n');
+       sig_line = memchr(tag_line, '\n', size - (tag_line - start));
        if (!sig_line)
                return -1;
        sig_line++;
@@ -83,12 +87,6 @@ int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
                item->tagged = NULL;
        }
 
-       if (item->tagged && track_object_refs) {
-               struct object_refs *refs = alloc_object_refs(1);
-               refs->ref[0] = item->tagged;
-               set_object_refs(&item->object, refs);
-       }
-
        return 0;
 }