From: Wayne Davison <wayne@opencoder.net>
Date: Mon, 9 Jan 2023 05:35:39 +0000 (-0800)
Subject: Don't call memcmp() on an empty lastdir.
X-Git-Tag: v3.3.0pre1~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=90df93e446f9ebbfd4ce97d6755c5fe1f45f9fd0;p=thirdparty%2Frsync.git

Don't call memcmp() on an empty lastdir.
---

diff --git a/flist.c b/flist.c
index 65b459b1..4eb672f1 100644
--- a/flist.c
+++ b/flist.c
@@ -2367,7 +2367,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 		}
 
 		dirlen = dir ? strlen(dir) : 0;
-		if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
+		if (dirlen != lastdir_len || (dirlen && memcmp(lastdir, dir, dirlen) != 0)) {
 			if (!change_pathname(NULL, dir, -dirlen))
 				goto bad_path;
 			lastdir = pathname;