From: brian m. carlson <sandals@crustytoothpaste.net>
Date: Mon, 16 Jul 2018 01:27:57 +0000 (+0000)
Subject: strbuf: allocate space with GIT_MAX_HEXSZ
X-Git-Tag: v2.19.0-rc0~112^2~11
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/4b048c917f9e2cc33771b61b8f12eeac10ea8a51

strbuf: allocate space with GIT_MAX_HEXSZ

In order to be sure we have enough space to use with any hash algorithm,
use GIT_MAX_HEXSZ to allocate space.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/strbuf.c b/strbuf.c
index b0716ac585..030556111d 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -921,7 +921,7 @@ void strbuf_add_unique_abbrev(struct strbuf *sb, const struct object_id *oid,
 			      int abbrev_len)
 {
 	int r;
-	strbuf_grow(sb, GIT_SHA1_HEXSZ + 1);
+	strbuf_grow(sb, GIT_MAX_HEXSZ + 1);
 	r = find_unique_abbrev_r(sb->buf + sb->len, oid, abbrev_len);
 	strbuf_setlen(sb, sb->len + r);
 }