28 lines · c
1// RUN: %clang_asan -O2 %s -o %t2// We need replace_str=0, intercept_strlen=0 and replace_intrin=0 to avoid3// reporting errors in strlen() and memcpy() called by printf().4// RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0:check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s5// RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0:check_printf=0 %run %t 2>&1 | FileCheck --check-prefix=CHECK-OFF %s6// RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s7 8// FIXME: printf is not intercepted on Windows yet.9// XFAIL: target={{.*windows-(msvc.*|gnu)}}10 11#include <stdio.h>12#include <stdlib.h>13#include <string.h>14int main() {15 volatile char c = '0';16 volatile int x = 12;17 volatile float f = 1.239;18 volatile char s[] = "34";19 char *p = strdup((const char *)s);20 free(p);21 printf("%c %d %.3f %s\n", c, x, f, p);22 return 0;23 // Check that %s is sanitized.24 // CHECK-ON: heap-use-after-free25 // CHECK-ON-NOT: 0 12 1.239 3426 // CHECK-OFF: 0 12 1.239 27}28