[PATCH] [Sanitizers] Intercept snprintf_l() on FreeBSD

[Evgeniy Stepanov]

================
Comment at: lib/asan/tests/asan_test.cc:1289
@@ +1288,3 @@
+#if SANITIZER_TEST_HAS_PRINTF_L
+static int vsnprintf_l_Wrapper(char *s, size_t n,
+                               locale_t l, const char *format, ...) {
----------------
Capital W after an underscore looks unusual.

================
Comment at: lib/asan/tests/asan_test.cc:1298
@@ +1297,3 @@
+
+TEST(AddressSanitizer, snprintf_l) {
+  char buff[100];
----------------
This does not really test much (does it fail before this patch?).
See test/asan/TestCases/printf-*.c for inspiration. No need to repeat all 5 of them for the _l variant, but please add something that verifies that the whole prinf sanitizing machinery is applied in this case.

http://reviews.llvm.org/D6418

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