From: Wayne Davison <wayne@opencoder.net>
Date: Thu, 4 Jun 2020 19:35:19 +0000 (-0700)
Subject: Fix change_dir() leaving appended slash in curr_dir on failure.
X-Git-Tag: v3.2.0pre1~63
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e633091d23ee483f4bc7a0f8bca15b5b17958fff;p=thirdparty%2Frsync.git

Fix change_dir() leaving appended slash in curr_dir on failure.
---

diff --git a/util.c b/util.c
index e1a75565..2c734b7c 100644
--- a/util.c
+++ b/util.c
@@ -1116,6 +1116,7 @@ int change_dir(const char *dir, int set_path_only)
 		skipped_chdir = set_path_only;
 		memcpy(curr_dir, dir, len + 1);
 	} else {
+		unsigned int save_dir_len = curr_dir_len;
 		if (curr_dir_len + 1 + len >= sizeof curr_dir) {
 			errno = ENAMETOOLONG;
 			return 0;
@@ -1125,6 +1126,7 @@ int change_dir(const char *dir, int set_path_only)
 		memcpy(curr_dir + curr_dir_len, dir, len + 1);
 
 		if (!set_path_only && chdir(curr_dir)) {
+			curr_dir_len = save_dir_len;
 			curr_dir[curr_dir_len] = '\0';
 			return 0;
 		}