lib/krb5/test_time.c

   1 /*
   2  * Copyright (c) 2003 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of KTH nor the names of its contributors may be
  18  *    used to endorse or promote products derived from this software without
  19  *    specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include "krb5_locl.h"
  35 #include <err.h>
  36
  37 static void
  38 check_set_time(krb5_context context)
  39 {
  40     krb5_error_code ret;
  41     krb5_timestamp sec;
  42     int32_t usec;
  43     struct timeval tv;
  44     int diff = 10;
  45     int diff2;
  46
  47     gettimeofday(&tv, NULL);
  48
  49     ret = krb5_set_real_time(context, tv.tv_sec + diff, tv.tv_usec);
  50     if (ret)
  51         krb5_err(context, 1, ret, "krb5_us_timeofday");
  52
  53     ret = krb5_us_timeofday(context, &sec, &usec);
  54     if (ret)
  55         krb5_err(context, 1, ret, "krb5_us_timeofday");
  56
  57     diff2 = labs(sec - tv.tv_sec);
  58
  59     if (diff2 < 9 || diff > 11)
  60         krb5_errx(context, 1, "set time error: diff: %ld",
  61                   labs(sec - tv.tv_sec));
  62 }
  63
  64
  65
  66 int
  67 main(int argc, char **argv)
  68 {
  69     krb5_context context;
  70     krb5_error_code ret;
  71
  72     ret = krb5_init_context(&context);
  73     if (ret)
  74         errx(1, "krb5_init_context %d", ret);
  75
  76     check_set_time(context);
  77     check_set_time(context);
  78     check_set_time(context);
  79     check_set_time(context);
  80     check_set_time(context);
  81
  82     krb5_free_context(context);
  83
  84     return 0;
  85 }