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// Test strict_string_checks option in strcasestr 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
// There's no interceptor for strcasestr on Windows
// XFAIL: windows-msvc
#define _GNU_SOURCE
#include <assert.h>
#include <stdlib.h>
#include <string.h>
int main(int argc, char **argv) {
size_t size = 100;
char *s1 = (char*)malloc(size);
char *s2 = (char*)malloc(size);
memset(s1, 'o', size);
memset(s2, 'O', size);
s2[size - 1]='\0';
char* r = strcasestr(s1, s2);
// CHECK: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
// CHECK: READ of size 101
assert(r == s1);
free(s1);
free(s2);
return 0;
}
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