[OpenWrt-Devel] [PATCH 5/6] uclient-utils: Handle memory allocation failure for url file name

Tobias Schramm tobleminer at gmail.com
Sat Feb 17 22:36:39 EST 2018


Signed-off-by: Tobias Schramm <tobleminer at gmail.com>
---
 uclient-utils.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/uclient-utils.c b/uclient-utils.c
index a375eea..ee0f8e8 100644
--- a/uclient-utils.c
+++ b/uclient-utils.c
@@ -177,8 +177,12 @@ char *uclient_get_url_filename(const char *url, const char *default_name)
 	str++;
 	len -= str - url;
 
-	if (len > 0)
-		return strncpy(calloc(1, len + 1), str, len);
+	if (len > 0) {
+		char *fname = calloc(1, len + 1);
+		if(!fname)
+			return NULL;
 
+		return strncpy(fname, str, len);
+	}
 	return strdup(default_name);
 }
-- 
2.16.1
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