From d9bdfd1644320ab916ea31d95da4bf641042209a Mon Sep 17 00:00:00 2001 From: Quentin Rameau Date: Sun, 11 Nov 2018 09:25:26 +0100 Subject: [PATCH] fix memccpy to not access buffer past given size memccpy would return a pointer over the given size when c is not found in the source buffer and n reaches 0. --- src/string/memccpy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/string/memccpy.c b/src/string/memccpy.c index f515581c..00c18e2b 100644 --- a/src/string/memccpy.c +++ b/src/string/memccpy.c @@ -29,6 +29,6 @@ void *memccpy(void *restrict dest, const void *restrict src, int c, size_t n) #endif for (; n && (*d=*s)!=c; n--, s++, d++); tail: - if (*s==c) return d+1; + if (n && *s==c) return d+1; return 0; } -- 2.25.1