12d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: %clang_asan -O2 %s -o %t 22d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: env ASAN_OPTIONS=check_printf=1 %run %t 2>&1 | FileCheck %s 32d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: env ASAN_OPTIONS=check_printf=0 %run %t 2>&1 | FileCheck %s 42d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: %run %t 2>&1 | FileCheck %s 52d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 62d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#include <stdio.h> 75d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines#if defined(_WIN32) 85d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines# define snprintf _snprintf 95d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines#endif 105d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines 112d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hinesint main() { 122d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile char c = '0'; 132d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile int x = 12; 142d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile float f = 1.239; 152d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines volatile char s[] = "34"; 162d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // Check that printf works fine under Asan. 172d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines printf("%c %d %.3f %s\n", c, x, f, s); 182d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // CHECK: 0 12 1.239 34 192d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // Check that snprintf works fine under Asan. 202d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines char buf[4]; 212d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines snprintf(buf, 1000, "qwe"); 222d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines printf("%s\n", buf); 232d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines // CHECK: qwe 242d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines return 0; 252d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines} 26