compiler-rt/test/asan/TestCases/Posix/strndup_oob_test.cpp

   1 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   2 // RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
   3 // RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
   4 // RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
   5
   6 // When built as C on Linux, strndup is transformed to __strndup.
   7 // RUN: %clangxx_asan -O3 -xc %s -o %t && not %run %t 2>&1 | FileCheck %s
   8
   9 // Unwind problem on arm: "main" is missing from the allocation stack trace.
  10 // UNSUPPORTED: target={{.*windows-msvc.*}},target=s390{{.*}},target=arm{{.*}} && !fast-unwinder-works
  11
  12 #include <string.h>
  13
  14 char kString[] = "foo";
  15
  16 int main(int argc, char **argv) {
  17   char *copy = strndup(kString, 2);
  18   int x = copy[2 + argc];  // BOOM
  19   // CHECK: AddressSanitizer: heap-buffer-overflow
  20   // CHECK: #0 {{.*}}main {{.*}}strndup_oob_test.cpp:[[@LINE-2]]
  21   // CHECK-LABEL: allocated by thread T{{.*}} here:
  22   // CHECK: #{{[01]}} {{.*}}strndup
  23   // CHECK: #{{.*}}main {{.*}}strndup_oob_test.cpp:[[@LINE-6]]
  24   // CHECK-LABEL: SUMMARY
  25   // CHECK: strndup_oob_test.cpp:[[@LINE-7]]
  26   return x;
  27 }