/crypto/heimdal/lib/roken/gettimeofday.c

 1/*
 2 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Hรถgskolan
 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 the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <config.h>
35#include "roken.h"
36#ifndef HAVE_GETTIMEOFDAY
37
38#ifdef _WIN32
39
40ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
41gettimeofday (struct timeval *tp, void *ignore)
42{
43    FILETIME ft;
44    ULARGE_INTEGER li;
45    ULONGLONG ull;
46
47    GetSystemTimeAsFileTime(&ft);
48    li.LowPart = ft.dwLowDateTime;
49    li.HighPart = ft.dwHighDateTime;
50    ull = li.QuadPart;
51
52    ull -= 116444736000000000i64;
53    ull /= 10i64;               /* ull is now in microseconds */
54
55    tp->tv_usec = (ull % 1000000i64);
56    tp->tv_sec  = (ull / 1000000i64);
57
58    return 0;
59}
60
61#else
62
63/*
64 * Simple gettimeofday that only returns seconds.
65 */
66ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
67gettimeofday (struct timeval *tp, void *ignore)
68{
69     time_t t;
70
71     t = time(NULL);
72     tp->tv_sec  = (long) t;
73     tp->tv_usec = 0;
74     return 0;
75}
76
77#endif  /* !_WIN32 */
78#endif