You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
27 lines
730 B
27 lines
730 B
4 months ago
|
// Test strict_string_checks option in strcmp function
|
||
|
|
// RUN: %clang_asan %s -o %t && %run %t 2>&1
|
||
|
|
// RUN: %env_asan_opts=strict_string_checks=false %run %t 2>&1
|
||
|
|
// RUN: %env_asan_opts=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
int main(int argc, char **argv) {
|
||
|
|
size_t size = 100;
|
||
|
|
char fill = 'o';
|
||
|
|
char *s1 = (char*)malloc(size);
|
||
|
|
memset(s1, fill, size);
|
||
|
|
char *s2 = (char*)malloc(size);
|
||
|
|
memset(s2, fill, size);
|
||
|
|
s1[size - 1] = 'z';
|
||
|
|
s2[size - 1] = 'x';
|
||
|
|
int r = strcmp(s1, s2);
|
||
|
|
// CHECK: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
|
||
|
|
// CHECK: READ of size 101
|
||
|
|
assert(r == 1);
|
||
|
|
free(s1);
|
||
|
|
free(s2);
|
||
|
|
return 0;
|
||
|
|
}
|