From: Junio C Hamano <gitster@pobox.com>
Date: Mon, 17 Oct 2011 17:22:47 GMT
Subject: Re: regression in git-gui since 2c5c66b... Merge branch 'jp/get-ref-dir-unsorted
Message-ID: <7v4nz7o7mg.fsf@alter.siamese.dyndns.org>
In-Reply-To: <4E9C2F3C.7080405@alum.mit.edu>

Michael Haggerty <mhagger@alum.mit.edu> writes:

> static int resolve_gitlink_packed_ref(char *name, int pathlen, const
> char *refname, unsigned char *result)
> {
> 	int retval = -1;
> 	struct ref_entry *ref;
> 	struct ref_array *array = get_packed_refs(name);
>
> 	ref = search_ref_array(array, refname);
> 	if (ref != NULL) {
> 		memcpy(result, ref->sha1, 20);
> 		retval = 0;
> 	}
> 	return retval;
> }
>
> The problem is that the parameter "name" is not NUL-terminated.  The old
> code turned it into a (NUL-terminated) filename via
>
>     strcpy(name + pathlen, "packed-refs");
>
> but the new code passes it (unterminated) to get_packed_refs()

Thanks for digging this through before I got to it. Very much appreciated,
and sorry or the mismerge (incidentally this was why I wanted to merge
early these two topics that tried to improve different things that
happened to touch the same part of the code, as I knew such a merge was
risky and needed plenty time before it hits released versions).