fortify-headers

commit 31f2952bc70bc521e3392a9465a306dbb1dd1b38
parent bcc398c14af23c2d640d6fbbc6330d64e5ffad58
Author: sin <sin@2f30.org>
Date:   Wed, 28 Jan 2015 17:15:56 +0000

Use local _n to avoid multiple evaluation

Diffstat:
M
include/stdio.h
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/stdio.h b/include/stdio.h
@@ -24,9 +24,9 @@ int __fortify_vsnprintf(char *__restrict s, size_t n, const char *__restrict fmt
 #define snprintf(s, n, fmt, ...) ({ \
 	size_t _n = (n); \
 	size_t bos = __builtin_object_size(s, 0); \
-	if (n > bos) \
+	if (_n > bos) \
 		__builtin_trap(); \
-	snprintf(s, n, fmt, __VA_ARGS__); \
+	snprintf(s, _n, fmt, __VA_ARGS__); \
 })
 
 #endif