diff options
Diffstat (limited to 'compiler-rt/test/asan/TestCases/wcsncpy.cpp')
| -rw-r--r-- | compiler-rt/test/asan/TestCases/wcsncpy.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/compiler-rt/test/asan/TestCases/wcsncpy.cpp b/compiler-rt/test/asan/TestCases/wcsncpy.cpp new file mode 100644 index 0000000..485ddc4 --- /dev/null +++ b/compiler-rt/test/asan/TestCases/wcsncpy.cpp @@ -0,0 +1,24 @@ +// RUN: %clangxx_asan -O0 %s -o %t && not %env_asan_opts=log_to_stderr=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK +// RUN: %clangxx_asan -O1 %s -o %t && not %env_asan_opts=log_to_stderr=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK +// RUN: %clangxx_asan -O2 %s -o %t && not %env_asan_opts=log_to_stderr=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK +// RUN: %clangxx_asan -O3 %s -o %t && not %env_asan_opts=log_to_stderr=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK + +#include <stdio.h> +#include <wchar.h> + +int main() { + const wchar_t *src = L"X means dog"; + wchar_t goodDst[12]; + wcsncpy(goodDst, src, 12); + + wchar_t badDst[7]; + wcsncpy(badDst, src, 7); // This should still work. + fprintf(stderr, "Good so far.\n"); + // CHECK-DAG: Good so far. + fflush(stderr); + wcsncpy(badDst, src, 15); // Boom! + // CHECK-DAG: ERROR: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] at pc {{0x[0-9a-f]+}} bp {{0x[0-9a-f]+}} sp {{0x[0-9a-f]+}} + // CHECK-DAG: WRITE of size {{[0-9]+}} at [[ADDR]] thread T0 + // CHECK-DAG: #0 {{0x[0-9a-f]+}} in wcsncpy + printf("Should have failed with ASAN error.\n"); +} |