| // RUN: %clang_asan -O2 %s -o %t |
| // RUN: env ASAN_OPTIONS=check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s |
| // RUN: env ASAN_OPTIONS=check_printf=0 %run %t 2>&1 | FileCheck --check-prefix=CHECK-OFF %s |
| // RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s |
| |
| // FIXME: printf is not intercepted on Windows yet. |
| // XFAIL: win32 |
| |
| #include <stdio.h> |
| int main() { |
| volatile char c = '0'; |
| volatile int x = 12; |
| volatile float f = 1.239; |
| volatile char s[] = "34"; |
| volatile int n[1]; |
| printf("%c %d %.3f %s%n\n", c, x, f, s, &n[1]); |
| return 0; |
| // Check that %n is sanitized. |
| // CHECK-ON: stack-buffer-overflow |
| // CHECK-ON-NOT: 0 12 1.239 34 |
| // CHECK-OFF: 0 12 1.239 34 |
| } |
