From: Dmitry V. Levin <ldv@altlinux.org>
Date: Tue, 26 Feb 2013 19:23:27 +0000 (+0000)
Subject: pathtrace: fix umovestr return code check
X-Git-Tag: v4.8~116
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1a880cf3bd8c12af6d831c2dfa5b259be074d77a;p=strace

pathtrace: fix umovestr return code check

* pathtrace.c (upathmatch): Only NUL-terminated strings can be
path-matched, so fix the umovestr return code check to filter out
unsuitable strings.
---

diff --git a/pathtrace.c b/pathtrace.c
index f202c99f..83d79d37 100644
--- a/pathtrace.c
+++ b/pathtrace.c
@@ -65,7 +65,7 @@ upathmatch(struct tcb *tcp, unsigned long upath)
 {
 	char path[PATH_MAX + 1];
 
-	return umovestr(tcp, upath, sizeof path, path) >= 0 &&
+	return umovestr(tcp, upath, sizeof path, path) > 0 &&
 		pathmatch(path);
 }