12d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: %clang_asan -O2 %s -o %t 22d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// We need replace_intrin=0 to avoid reporting errors in memcpy. 32d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: env ASAN_OPTIONS=replace_intrin=0:check_printf=1 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s 42d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: env ASAN_OPTIONS=replace_intrin=0:check_printf=0 %run %t 2>&1 | FileCheck --check-prefix=CHECK-OFF %s 52d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: env ASAN_OPTIONS=replace_intrin=0 not %run %t 2>&1 | FileCheck --check-prefix=CHECK-ON %s 62d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 75d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// FIXME: printf is not intercepted on Windows yet. 85d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// XFAIL: win32 95d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines 102d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#include <stdio.h> 112d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#include <string.h> 122d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hinesint main() { 132d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile char c = '0'; 142d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile int x = 12; 152d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile float f = 1.239; 162d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile char s[] = "34"; 172d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile char fmt[2]; 182d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines memcpy((char *)fmt, "%c %d %f %s\n", sizeof(fmt)); 192d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines printf((char *)fmt, c, x, f, s); 202d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines return 0; 212d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // Check that format string is sanitized. 222d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // CHECK-ON: stack-buffer-overflow 232d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // CHECK-ON-NOT: 0 12 1.239 34 242d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // CHECK-OFF: 0 252d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines} 26