From b9caa1859d9116959a1aafdb8dc3f6578d692459 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=2E=20David=20Ib=C3=A1=C3=B1ez?= <jdavid.ibp@gmail.com>
Date: Fri, 30 Sep 2011 19:50:13 +0200
Subject: [PATCH] oid: now git_oid_fromstrn checks whether the given string is
 too short
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Signed-off-by: J. David Ibáñez <jdavid.ibp@gmail.com>
---
 src/oid.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/oid.c b/src/oid.c
index 1f7227410..08e9305b5 100644
--- a/src/oid.c
+++ b/src/oid.c
@@ -36,6 +36,9 @@ int git_oid_fromstrn(git_oid *out, const char *str, size_t length)
 	size_t p;
 	int v;
 
+	if (length < 4)
+		return git__throw(GIT_ENOTOID, "Failed to generate sha1. Given string is too short");
+
 	if (length > GIT_OID_HEXSZ)
 		length = GIT_OID_HEXSZ;