rev-parse: add --shared-index-path to get shared index path

diff --git a/fsck.c b/fsck.c
index 31ce993e371c91505f98c64f49600ae4f260c2f2..abed62bac77c67e7c7447a18fea75f228406baac 100644 (file)
--- a/fsck.c
+++ b/fsck.c
@@ -237,8 +237,10 @@ static int fsck_tree(struct tree *item, int strict, fsck_error error_func)
        return retval;
 }
 
-static int fsck_ident(char **ident, struct object *obj, fsck_error error_func)
+static int fsck_ident(const char **ident, struct object *obj, fsck_error error_func)
 {
+       char *end;
+
        if (**ident == '<')
                return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing space before email");
        *ident += strcspn(*ident, "<>\n");
@@ -258,10 +260,11 @@ static int fsck_ident(char **ident, struct object *obj, fsck_error error_func)
        (*ident)++;
        if (**ident == '0' && (*ident)[1] != ' ')
                return error_func(obj, FSCK_ERROR, "invalid author/committer line - zero-padded date");
-       *ident += strspn(*ident, "0123456789");
-       if (**ident != ' ')
+       if (date_overflows(strtoul(*ident, &end, 10)))
+               return error_func(obj, FSCK_ERROR, "invalid author/committer line - date causes integer overflow");
+       if (end == *ident || *end != ' ')
                return error_func(obj, FSCK_ERROR, "invalid author/committer line - bad date");
-       (*ident)++;
+       *ident = end + 1;
        if ((**ident != '+' && **ident != '-') ||
            !isdigit((*ident)[1]) ||
            !isdigit((*ident)[2]) ||
@@ -275,24 +278,23 @@ static int fsck_ident(char **ident, struct object *obj, fsck_error error_func)
 
 static int fsck_commit(struct commit *commit, fsck_error error_func)
 {
-       char *buffer = commit->buffer;
+       const char *buffer = commit->buffer, *tmp;
        unsigned char tree_sha1[20], sha1[20];
        struct commit_graft *graft;
        int parents = 0;
        int err;
 
-       if (commit->date == ULONG_MAX)
-               return error_func(&commit->object, FSCK_ERROR, "invalid author/committer line");
-
-       if (memcmp(buffer, "tree ", 5))
+       buffer = skip_prefix(buffer, "tree ");
+       if (!buffer)
                return error_func(&commit->object, FSCK_ERROR, "invalid format - expected 'tree' line");
-       if (get_sha1_hex(buffer+5, tree_sha1) || buffer[45] != '\n')
+       if (get_sha1_hex(buffer, tree_sha1) || buffer[40] != '\n')
                return error_func(&commit->object, FSCK_ERROR, "invalid 'tree' line format - bad sha1");
-       buffer += 46;
-       while (!memcmp(buffer, "parent ", 7)) {
-               if (get_sha1_hex(buffer+7, sha1) || buffer[47] != '\n')
+       buffer += 41;
+       while ((tmp = skip_prefix(buffer, "parent "))) {
+               buffer = tmp;
+               if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n')
                        return error_func(&commit->object, FSCK_ERROR, "invalid 'parent' line format - bad sha1");
-               buffer += 48;
+               buffer += 41;
                parents++;
        }
        graft = lookup_commit_graft(commit->object.sha1);
@@ -316,15 +318,15 @@ static int fsck_commit(struct commit *commit, fsck_error error_func)
                if (p || parents)
                        return error_func(&commit->object, FSCK_ERROR, "parent objects missing");
        }
-       if (memcmp(buffer, "author ", 7))
+       buffer = skip_prefix(buffer, "author ");
+       if (!buffer)
                return error_func(&commit->object, FSCK_ERROR, "invalid format - expected 'author' line");
-       buffer += 7;
        err = fsck_ident(&buffer, &commit->object, error_func);
        if (err)
                return err;
-       if (memcmp(buffer, "committer ", strlen("committer ")))
+       buffer = skip_prefix(buffer, "committer ");
+       if (!buffer)
                return error_func(&commit->object, FSCK_ERROR, "invalid format - expected 'committer' line");
-       buffer += strlen("committer ");
        err = fsck_ident(&buffer, &commit->object, error_func);
        if (err)
                return err;