1 // RUN: %clang_asan -Wno-excess-initializers -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: target={{.*windows-(msvc.*|gnu)}}
9
10 // FIXME: The test is flaky after build bot upgrade. #97515
11 // UNSUPPORTED: android
12
13 #include <stdio.h>
14 #include <string.h>
main()15 int main() {
16 volatile char c = '0';
17 volatile int x = 12;
18 volatile float f = 1.239;
19 volatile char s[] = "34";
20 volatile char fmt[2] = "%c %d %f %s\n";
21 printf((char *)fmt, c, x, f, s);
22 return 0;
23 // Check that format string is sanitized.
24 // CHECK-ON: stack-buffer-overflow
25 // CHECK-ON-NOT: 0 12 1.239 34
26 // CHECK-OFF: 0
27 }
28