1// ASan interceptor can be accessed with __interceptor_ prefix.
2
3// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
4// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
5// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
6// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
7#include <stdlib.h>
8#include <stdio.h>
9
10extern "C" long __interceptor_strtol(const char *nptr, char **endptr, int base);
11extern "C" long strtol(const char *nptr, char **endptr, int base) {
12  fprintf(stderr, "my_strtol_interceptor\n");
13  return __interceptor_strtol(nptr, endptr, base);
14}
15
16int main() {
17  char *x = (char*)malloc(10 * sizeof(char));
18  free(x);
19  return (int)strtol(x, 0, 10);
20  // CHECK: my_strtol_interceptor
21  // CHECK: heap-use-after-free
22}
23