// RUN: %clang_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s

// RUN: %clang_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s

// RUN: %clang_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s

// RUN: %clang_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s



// When built as C on Linux, strndup is transformed to __strndup.

// RUN: %clang_asan -O3 -xc %s -o %t && not %run %t 2>&1 | FileCheck %s



// Unwind problem on arm: "main" is missing from the allocation stack trace.

// UNSUPPORTED: target={{.*windows-msvc.*}},target=s390{{.*}},target=arm{{.*}} && !fast-unwinder-works


#include <string.h>



char kChars[] = { 'f', 'o', 'o' };



int main(int argc, char **argv) {

  char *copy = strndup(kChars, 3);

  copy = strndup(kChars, 10);

  // CHECK: AddressSanitizer: global-buffer-overflow

  // CHECK: {{.*}}main {{.*}}.cpp:[[@LINE-2]]

  return *copy;

}