src/compiler-rt/test/asan/TestCases/Windows/intercept_strlen.cc

   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
   7 int main() {
   8   char str[] = "Hello";
   9   if (5 != strlen(str))
  10     return 1;
  11
  12   printf("Initial test OK\n");
  13   fflush(0);
  14 // CHECK: Initial test OK
  15
  16   str[5] = '!';  // Losing '\0' at the end.
  17   int len = strlen(str);
  18 // CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
  19 // FIXME: Should be READ of size 1, see issue 155.
  20 // CHECK: READ of size {{[0-9]+}} at [[ADDR]] thread T0
  21 // CHECK:      strlen
  22 // CHECK-NEXT: main {{.*}}intercept_strlen.cc:[[@LINE-5]]
  23 // CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
  24 // CHECK-NEXT: main {{.*}}intercept_strlen.cc
  25 // CHECK: 'str' <== Memory access at offset {{.*}} overflows this variable
  26   return len < 6;
  27 }