From: Dmitry V. Levin <ldv@altlinux.org>
Date: Wed, 30 Nov 2016 16:50:56 +0000 (+0000)
Subject: syscall: Simplify strip_prefix
X-Git-Tag: v4.15~50
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ec8f7833562b397befbc9349edf95e9eb53b633d;p=strace

syscall: Simplify strip_prefix

* syscall.c (strip_prefix): Use strncmp instead of strlen+memcmp.
---

diff --git a/syscall.c b/syscall.c
index 602465db..0488234e 100644
--- a/syscall.c
+++ b/syscall.c
@@ -581,8 +581,7 @@ strip_prefix(const char *prefix, const char *str)
 {
 	size_t len = strlen(prefix);
 
-	return (len > strlen(str) || memcmp(prefix, str, len))
-	       ? NULL : str + len;
+	return strncmp(prefix, str, len) ? NULL : str + len;
 }
 
 static int