1 // RUN: %clang_asan -O2 %s -o %t 2 // We need replace_intrin=0 to avoid reporting errors in memcpy. 3 // RUN: %env_asan_opts=replace_intrin=0:check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s 4 // RUN: %env_asan_opts=replace_intrin=0:check_printf=0 %run %t 2>&1 | FileCheck --check-prefix=CHECK-OFF %s 5 // RUN: %env_asan_opts=replace_intrin=0 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s 6 7 // FIXME: printf is not intercepted on Windows yet. 8 // XFAIL: win32 9 10 #include <stdio.h> 11 #include <string.h> 12 int main() { 13 volatile char c = '0'; 14 volatile int x = 12; 15 volatile float f = 1.239; 16 volatile char s[] = "34"; 17 volatile char fmt[2]; 18 memcpy((char *)fmt, "%c %d %f %s\n", sizeof(fmt)); 19 printf((char *)fmt, c, x, f, s); 20 return 0; 21 // Check that format string is sanitized. 22 // CHECK-ON: stack-buffer-overflow 23 // CHECK-ON-NOT: 0 12 1.239 34 24 // CHECK-OFF: 0 25 } 26
