[PATCH] D34656: [msan] Intercept wcscat, wcsncat.

[Vitaly Buka via Phabricator via llvm-commits]

vitalybuka added a comment.

Why strncat is not in common?



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Comment at: compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc:6215
+  SIZE_T res = REAL(wcsnlen)(s, n);
+  COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * Min(res + 1, n));
+  return res;
----------------
you need to handle strict_string_checks
Probably new macro COMMON_INTERCEPTOR_READ_WSTRING is needed


================
Comment at: compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc:6243
+  SIZE_T dst_size = REAL(wcslen)(dst);
+  COMMON_INTERCEPTOR_READ_RANGE(ctx, src,
+                                Min(src_size + 1, n) * sizeof(wchar_t));
----------------
 COMMON_INTERCEPTOR_READ_WSTRING


https://reviews.llvm.org/D34656