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      1 // Test strict_string_checks option in atol function
      2 // RUN: %clang_asan %s -o %t
      3 // RUN: %run %t test1 2>&1
      4 // RUN: %env_asan_opts=strict_string_checks=false %run %t test1 2>&1
      5 // RUN: %env_asan_opts=strict_string_checks=true not %run %t test1 2>&1 | FileCheck %s --check-prefix=CHECK1
      6 // RUN: %run %t test2 2>&1
      7 // RUN: %env_asan_opts=strict_string_checks=false %run %t test2 2>&1
      8 // RUN: %env_asan_opts=strict_string_checks=true not %run %t test2 2>&1 | FileCheck %s --check-prefix=CHECK2
      9 // RUN: %run %t test3 2>&1
     10 // RUN: %env_asan_opts=strict_string_checks=false %run %t test3 2>&1
     11 // RUN: %env_asan_opts=strict_string_checks=true not %run %t test3 2>&1 | FileCheck %s --check-prefix=CHECK3
     12 
     13 #include <assert.h>
     14 #include <stdlib.h>
     15 #include <string.h>
     16 
     17 void test1(char *array) {
     18   // Last symbol is non-digit
     19   memset(array, '1', 10);
     20   array[9] = 'a';
     21   long r = atol(array);
     22   assert(r == 111111111);
     23 }
     24 
     25 void test2(char *array) {
     26   // Single non-digit symbol
     27   array[9] = 'a';
     28   long r = atol(array + 9);
     29   assert(r == 0);
     30 }
     31 
     32 void test3(char *array) {
     33   // Incorrect number format
     34   memset(array, ' ', 10);
     35   array[9] = '-';
     36   array[8] = '-';
     37   long r = atol(array);
     38   assert(r == 0);
     39 }
     40 
     41 int main(int argc, char **argv) {
     42   char *array = (char*)malloc(10);
     43   if (argc != 2) return 1;
     44   if (!strcmp(argv[1], "test1")) test1(array);
     45   // CHECK1: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
     46   // CHECK1: READ of size 11
     47   if (!strcmp(argv[1], "test2")) test2(array);
     48   // CHECK2: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
     49   // CHECK2: READ of size 2
     50   if (!strcmp(argv[1], "test3")) test3(array);
     51   // CHECK3: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
     52   // CHECK3: READ of size 11
     53   free(array);
     54   return 0;
     55 }
     56