1 // RUN: %clang_cl_asan -O0 %s -Fe%t 2 // RUN: not %run %t 2>&1 | FileCheck %s 3 4 #include <stdio.h> 5 #include <string.h> 6 #include <malloc.h> 7 8 int main() { 9 char *ptr = _strdup("Hello"); 10 int subscript = 1; 11 ptr[subscript] = '3'; 12 printf("%s\n", ptr); 13 fflush(0); 14 // CHECK: H3llo 15 16 subscript = -1; 17 ptr[subscript] = 42; 18 // CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] 19 // CHECK: WRITE of size 1 at [[ADDR]] thread T0 20 // CHECK: {{#0 .* main .*}}intercept_strdup.cc:[[@LINE-3]] 21 // CHECK: [[ADDR]] is located 1 bytes to the left of 6-byte region 22 // CHECK: allocated by thread T0 here: 23 // 24 // The first frame is our wrapper normally but will be malloc in the dynamic 25 // config. 26 // CHECK: #0 {{.*}} in {{malloc|__asan_wrap_strdup}} 27 // 28 // The local call to _strdup above may be the second or third frame depending 29 // on whether we're using the dynamic config. 30 // CHECK: #{{[12]}} {{.*}} in main {{.*}}intercept_strdup.cc:[[@LINE-21]] 31 free(ptr); 32 } 33
