1 // RUN: %clang_asan -O2 %s -o %t 2 // We need replace_str=0, intercept_strlen=0 and replace_intrin=0 to avoid 3 // 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 %s 5 // 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 %s 6 // RUN: %env_asan_opts=replace_str=0:intercept_strlen=0:replace_intrin=0 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s 7 8 // FIXME: printf is not intercepted on Windows yet. 9 // XFAIL: win32 10 11 #include <stdio.h> 12 #include <stdlib.h> 13 #include <string.h> 14 int 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-free 25 // CHECK-ON-NOT: 0 12 1.239 34 26 // CHECK-OFF: 0 12 1.239 27 } 28
