From d51b4f92d7c9899694e9ef8334030ceb512cb2de Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Sat, 5 Oct 2013 09:14:11 +0100
Subject: Use open(".")/fchdir() to save and restore current directory rather
 than getcwd()/chdir().

---
 tmux.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

(limited to 'tmux.c')

diff --git a/tmux.c b/tmux.c
index 9c81cff5..4ff45d55 100644
--- a/tmux.c
+++ b/tmux.c
@@ -127,19 +127,25 @@ areshell(const char *shell)
 	return (0);
 }
 
-const char*
+const char *
 get_full_path(const char *wd, const char *path)
 {
+	int		fd;
 	static char	newpath[MAXPATHLEN];
-	char		oldpath[MAXPATHLEN];
 
-	if (getcwd(oldpath, sizeof oldpath) == NULL)
+	fd = open(".", O_RDONLY);
+	if (fd == -1)
 		return (NULL);
+
 	if (chdir(wd) != 0)
 		return (NULL);
 	if (realpath(path, newpath) != 0)
 		return (NULL);
-	chdir(oldpath);
+
+	if (fchdir(fd) != 0)
+		chdir("/");
+	close(fd);
+
 	return (newpath);
 }
 
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