fortify-headers

standalone fortify-source implementation
git clone git://git.2f30.org/fortify-headers.git
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commit 31f2952bc70bc521e3392a9465a306dbb1dd1b38
parent bcc398c14af23c2d640d6fbbc6330d64e5ffad58
Author: sin <sin@2f30.org>
Date:   Wed Jan 28 17:15:56 +0000

Use local _n to avoid multiple evaluation

Diffstat:
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