[PATCH v2 2/9] real_path_internal(): add comment explaining use of cwd

From: Michael Haggerty <mhagger@alum.mit.edu>
Date: Sep 29, 2012, 06:15 UTC
Message-ID: <1348899362-4057-3-git-send-email-mhagger@alum.mit.edu>
In-Reply-To: <1348899362-4057-1-git-send-email-mhagger@alum.mit.edu>

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 abspath.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/abspath.c b/abspath.c
index a7ab8e9..f8a526f 100644
--- a/abspath.c
+++ b/abspath.c
@@ -35,7 +35,14 @@ static const char *real_path_internal(const char *path, int die_on_error)
 {
 	static char bufs[2][PATH_MAX + 1], *buf = bufs[0], *next_buf = bufs[1];
 	char *retval = NULL;
+
+	/*
+	 * If we have to temporarily chdir(), store the original CWD
+	 * here so that we can chdir() back to it at the end of the
+	 * function:
+	 */
 	char cwd[1024] = "";
+
 	int buf_index = 1;
 
 	int depth = MAXDEPTH;

-- 
1.7.11.3