| Alexey Samsonov | 00cd273 | 2014-01-21 11:58:33 +0000 | [diff] [blame] | 1 | // RUN: %clang_asan -O2 %s -o %t |
| Reid Kleckner | 7a21138 | 2016-03-11 19:11:15 +0000 | [diff] [blame^] | 2 | // RUN: %env_asan_opts=check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s |
| 3 | // RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s |
| Alexey Samsonov | 00cd273 | 2014-01-21 11:58:33 +0000 | [diff] [blame] | 4 | |
| Reid Kleckner | 7a21138 | 2016-03-11 19:11:15 +0000 | [diff] [blame^] | 5 | // FIXME: sprintf is not intercepted on Windows yet. |
| Timur Iskhodzhanov | 7f29181 | 2014-05-28 13:06:14 +0000 | [diff] [blame] | 6 | // XFAIL: win32 |
| 7 | |
| Alexey Samsonov | 00cd273 | 2014-01-21 11:58:33 +0000 | [diff] [blame] | 8 | #include <stdio.h> |
| 9 | int main() { |
| 10 | volatile char c = '0'; |
| 11 | volatile int x = 12; |
| 12 | volatile float f = 1.239; |
| 13 | volatile char s[] = "34"; |
| 14 | volatile char buf[2]; |
| Reid Kleckner | 7a21138 | 2016-03-11 19:11:15 +0000 | [diff] [blame^] | 15 | puts("before sprintf"); |
| Alexey Samsonov | 00cd273 | 2014-01-21 11:58:33 +0000 | [diff] [blame] | 16 | sprintf((char *)buf, "%c %d %.3f %s\n", c, x, f, s); |
| Reid Kleckner | 7a21138 | 2016-03-11 19:11:15 +0000 | [diff] [blame^] | 17 | puts("after sprintf"); |
| Alexey Samsonov | 00cd273 | 2014-01-21 11:58:33 +0000 | [diff] [blame] | 18 | puts((const char *)buf); |
| 19 | return 0; |
| 20 | // Check that size of output buffer is sanitized. |
| Reid Kleckner | 7a21138 | 2016-03-11 19:11:15 +0000 | [diff] [blame^] | 21 | // CHECK-ON: before sprintf |
| 22 | // CHECK-ON-NOT: after sprintf |
| Alexey Samsonov | 00cd273 | 2014-01-21 11:58:33 +0000 | [diff] [blame] | 23 | // CHECK-ON: stack-buffer-overflow |
| 24 | // CHECK-ON-NOT: 0 12 1.239 34 |
| Alexey Samsonov | 00cd273 | 2014-01-21 11:58:33 +0000 | [diff] [blame] | 25 | } |