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authorJeff King <peff@peff.net>2013-01-23 01:23:27 -0500
committerJunio C Hamano <gitster@pobox.com>2013-01-23 08:41:50 -0800
commit785a04298177e155dc7391e7234945b38b624e34 (patch)
treef952b01753afe3f46393957ba3b13484153d432d /archive-tar.c
parent1b86bbb0ade4641c2da0dc74ebca1c09ec772bb4 (diff)
downloadgit-785a04298177e155dc7391e7234945b38b624e34.tar.gz
git-785a04298177e155dc7391e7234945b38b624e34.tar.xz
archive-tar: use parse_config_key when parsing config
This is fewer lines of code, but more importantly, fixes a bogus pointer offset. We are looking for "tar." in the section, but later assume that the dot we found is at offset 9, not 3. This is a holdover from an earlier iteration of 767cf45 which called the section "tarfilter". As a result, we could erroneously reject some filters with dots in their name, as well as read uninitialized memory. Reported by (and test by) René Scharfe. Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'archive-tar.c')
-rw-r--r--archive-tar.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/archive-tar.c b/archive-tar.c
index d1cce46e3..719b6298e 100644
--- a/archive-tar.c
+++ b/archive-tar.c
@@ -327,20 +327,12 @@ static struct archiver *find_tar_filter(const char *name, int len)
static int tar_filter_config(const char *var, const char *value, void *data)
{
struct archiver *ar;
- const char *dot;
const char *name;
const char *type;
int namelen;
- if (prefixcmp(var, "tar."))
+ if (parse_config_key(var, "tar", &name, &namelen, &type) < 0 || !name)
return 0;
- dot = strrchr(var, '.');
- if (dot == var + 9)
- return 0;
-
- name = var + 4;
- namelen = dot - name;
- type = dot + 1;
ar = find_tar_filter(name, namelen);
if (!ar) {