From: Nikos Mavrogiannopoulos <nmav@gnutls.org>
Date: Sun, 27 Apr 2014 15:59:19 +0000 (+0200)
Subject: tolerate NULL in strdup(). Patch by shawn (sth0r2046 [at] gmail.com).
X-Git-Tag: gnutls_3_3_2~61
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1a375376f9876b1f8308e5ff135366348ede063;p=thirdparty%2Fgnutls.git

tolerate NULL in strdup(). Patch by shawn (sth0r2046 [at] gmail.com).
---

diff --git a/lib/gnutls_mem.c b/lib/gnutls_mem.c
index 8c24420770..d2da8b0ffe 100644
--- a/lib/gnutls_mem.c
+++ b/lib/gnutls_mem.c
@@ -63,9 +63,14 @@ void *gnutls_realloc_fast(void *ptr, size_t size)
 
 char *_gnutls_strdup(const char *str)
 {
-	size_t siz = strlen(str) + 1;
+	size_t siz;
 	char *ret;
 
+	if(unlikely(!str))
+		return NULL;
+
+	siz = strlen(str) + 1;
+
 	ret = gnutls_malloc(siz);
 	if (ret != NULL)
 		memcpy(ret, str, siz);