diff options
| author | Aly ElAshram <71949028+AlyElashram@users.noreply.github.com> | 2025-06-04 20:08:27 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-06-04 13:08:27 -0400 |
| commit | ff844df719d7226a46b8cb0d99aef9480cced247 (patch) | |
| tree | ec4fdf604da96f6b652f4d44769383caa06ad884 /libc/src/string/memccpy.cpp | |
| parent | ec5610c4a2ef15551fdfbe9c990851376f58efb6 (diff) | |
[libc] Expand usage of libc null checks. (#116262)
Fixes #111546
---------
Co-authored-by: alyyelashram <150528548+alyyelashram@users.noreply.github.com>
Diffstat (limited to 'libc/src/string/memccpy.cpp')
| -rw-r--r-- | libc/src/string/memccpy.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libc/src/string/memccpy.cpp b/libc/src/string/memccpy.cpp index ae90cf9370d4..d5654fc5e46a 100644 --- a/libc/src/string/memccpy.cpp +++ b/libc/src/string/memccpy.cpp @@ -10,6 +10,7 @@ #include "src/__support/common.h" #include "src/__support/macros/config.h" +#include "src/__support/macros/null_check.h" #include <stddef.h> // For size_t. namespace LIBC_NAMESPACE_DECL { @@ -17,6 +18,10 @@ namespace LIBC_NAMESPACE_DECL { LLVM_LIBC_FUNCTION(void *, memccpy, (void *__restrict dest, const void *__restrict src, int c, size_t count)) { + if (count) { + LIBC_CRASH_ON_NULLPTR(dest); + LIBC_CRASH_ON_NULLPTR(src); + } unsigned char end = static_cast<unsigned char>(c); const unsigned char *uc_src = static_cast<const unsigned char *>(src); unsigned char *uc_dest = static_cast<unsigned char *>(dest); |