compiler-rt/test/asan/TestCases/Windows/dll_intercept_strlen.cpp

   1 // RUN: %clang_cl_asan %Od %p/dll_host.cpp %Fe%t
   2 // RUN: %clang_cl_asan %LD %Od %s %Fe%t.dll
   3 // RUN: not %run %t %t.dll 2>&1 | FileCheck %s
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7
   8 extern "C" __declspec(dllexport)
   9 int test_function() {
  10   char str[] = "Hello!";
  11   if (6 != strlen(str))
  12     return 1;
  13   printf("Initial test OK\n");
  14   fflush(0);
  15 // CHECK: Initial test OK
  16
  17   str[6] = '!';  // Removes '\0' at the end!
  18   int len = strlen(str);
  19 // CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
  20 // FIXME: Should be READ of size 1, see issue 155.
  21 // CHECK: READ of size {{[0-9]+}} at [[ADDR]] thread T0
  22 // CHECK-NEXT: {{#0 .*}}strlen
  23 // CHECK-NEXT: {{#1 .* test_function .*}}dll_intercept_strlen.cpp:[[@LINE-5]]
  24 //
  25 // CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
  26 // CHECK-NEXT: test_function {{.*}}dll_intercept_strlen.cpp:
  27   return len > 42;
  28 }