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authorJakob Kaivo <jkk@ung.org>2024-01-31 13:24:56 -0500
committerJakob Kaivo <jkk@ung.org>2024-01-31 13:24:56 -0500
commit4b43b375b7abae22070cd86bfc26a8222233150e (patch)
tree6ff165b17879e80300cb6d05b5537a65c82c2dc7 /src/stdio/fwrite.c
parentab3c589cd14c2b7efd79c89fd75ea35edcf9edff (diff)
check for overlapping pointers
Diffstat (limited to 'src/stdio/fwrite.c')
-rw-r--r--src/stdio/fwrite.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/stdio/fwrite.c b/src/stdio/fwrite.c
index 52861b00..ab2e0f04 100644
--- a/src/stdio/fwrite.c
+++ b/src/stdio/fwrite.c
@@ -7,7 +7,9 @@ size_t fwrite(const void * restrict ptr, size_t size, size_t nmemb, FILE * restr
{
unsigned char *buf = (unsigned char *)ptr;
size_t n = 0;
+
SIGNAL_SAFE(0);
+ ASSERT_NOOVERLAP(ptr, size * nmemb, stream, sizeof(*stream));
while (nmemb) {
size_t i;