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