1 /*	$NetBSD: gettimeofday.c,v 1.1.1.1 2011/04/13 18:15:41 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
5  * (Royal Institute of Technology, Stockholm, Sweden).
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * 3. Neither the name of the Institute nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <config.h>
37 #include <krb5/roken.h>
38 #ifndef HAVE_GETTIMEOFDAY
39 
40 #ifdef _WIN32
41 
42 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
43 gettimeofday (struct timeval *tp, void *ignore)
44 {
45     FILETIME ft;
46     ULARGE_INTEGER li;
47     ULONGLONG ull;
48 
49     GetSystemTimeAsFileTime(&ft);
50     li.LowPart = ft.dwLowDateTime;
51     li.HighPart = ft.dwHighDateTime;
52     ull = li.QuadPart;
53 
54     ull -= 116444736000000000i64;
55     ull /= 10i64;               /* ull is now in microseconds */
56 
57     tp->tv_usec = (ull % 1000000i64);
58     tp->tv_sec  = (ull / 1000000i64);
59 
60     return 0;
61 }
62 
63 #else
64 
65 /*
66  * Simple gettimeofday that only returns seconds.
67  */
68 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
69 gettimeofday (struct timeval *tp, void *ignore)
70 {
71      time_t t;
72 
73      t = time(NULL);
74      tp->tv_sec  = (long) t;
75      tp->tv_usec = 0;
76      return 0;
77 }
78 
79 #endif  /* !_WIN32 */
80 #endif
81