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// 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 *start = L"X means ";
const wchar_t *append = L"dog";
wchar_t goodDst[12];
wcscpy(goodDst, start);
wcscat(goodDst, append);
wchar_t badDst[9];
wcscpy(badDst, start);
fprintf(stderr, "Good so far.\n");
// CHECK: Good so far.
fflush(stderr);
wcscat(badDst, append); // Boom!
// CHECK: 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: WRITE of size {{[0-9]+}} at [[ADDR]] thread T0
// CHECK: #0 {{0x[0-9a-f]+}} in wcscat
printf("Should have failed with ASAN error.\n");
}
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