31 lines · c
1// RUN: %clang_asan -O2 %s -o %t2// RUN: %env_asan_opts=check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s3// RUN: %env_asan_opts=check_printf=0 %run %t 2>&1 | FileCheck --check-prefix=CHECK-OFF %s4// RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s5 6// FIXME: printf is not intercepted on Windows yet.7// XFAIL: target={{.*windows-(msvc.*|gnu)}}8 9// New Bionic rejects %n10// https://android.googlesource.com/platform/bionic/+/41398d03b7e8e0dfb951660ae713e682e9fc033611// UNSUPPORTED: android12 13#include <stdio.h>14int main() {15#ifdef _MSC_VER16 // FIXME: The test raises a dialog even though it's XFAILd.17 return 42;18#endif19 volatile char c = '0';20 volatile int x = 12;21 volatile float f = 1.239;22 volatile char s[] = "34";23 volatile int n[1];24 printf("%c %d %.3f %s%n\n", c, x, f, s, &n[1]);25 return 0;26 // Check that %n is sanitized.27 // CHECK-ON: stack-buffer-overflow28 // CHECK-ON-NOT: 0 12 1.239 3429 // CHECK-OFF: 0 12 1.239 3430}31