From: Brandon Williams <bmwill@google.com>
Date: Mon, 9 Jan 2017 18:50:24 +0000 (-0800)
Subject: real_path: set errno when max number of symlinks is exceeded
X-Git-Tag: v2.12.0-rc0~61^2
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=0b9864aa28ba08d7fb901afee1a75a15e4ad431b;p=git-core%2Fgit.git

real_path: set errno when max number of symlinks is exceeded

Set errno to ELOOP when the maximum number of symlinks is exceeded, as
would be done by other symlink-resolving functions.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/abspath.c b/abspath.c
index 0393213e5..fce40fddc 100644
--- a/abspath.c
+++ b/abspath.c
@@ -141,6 +141,8 @@ char *strbuf_realpath(struct strbuf *resolved, const char *path,
 			strbuf_reset(&symlink);
 
 			if (num_symlinks++ > MAXSYMLINKS) {
+				errno = ELOOP;
+
 				if (die_on_error)
 					die("More than %d nested symlinks "
 					    "on path '%s'", MAXSYMLINKS, path);