1// Test strict_string_checks option in strchr function
2// RUN: %clang_asan %s -o %t && %run %t 2>&1
3// RUN: ASAN_OPTIONS=strict_string_checks=false %run %t 2>&1
4// RUN: ASAN_OPTIONS=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
5
6#include <assert.h>
7#include <stdlib.h>
8#include <string.h>
9
10int main(int argc, char **argv) {
11  size_t size = 100;
12  char fill = 'o';
13  char *s = (char*)malloc(size);
14  memset(s, fill, size);
15  char c = 'o';
16  char* r = strchr(s, c);
17  // CHECK: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
18  // CHECK: READ of size 101
19  assert(r == s);
20  free(s);
21  return 0;
22}
23