blob: be42ed337c86bfd6fbf5692a964e8791d58c8793 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <limits.h>
#include <sys/time.h>
#include <sys/timex.h>
#define MAX_SEC (INT_MAX / 1000000L - 2)
#define MIN_SEC (INT_MIN / 1000000L + 2)
#ifndef MOD_OFFSET
#define modes mode
#endif
int
__adjtime (itv, otv)
const struct timeval *itv;
struct timeval *otv;
{
struct timex tntx;
if (itv)
{
struct timeval tmp;
/* We will do some check here. */
tmp.tv_sec = itv->tv_sec + itv->tv_usec / 1000000L;
tmp.tv_usec = itv->tv_usec % 1000000L;
if (tmp.tv_sec > MAX_SEC || tmp.tv_sec < MIN_SEC)
{
__set_errno (EINVAL);
return -1;
}
tntx.offset = tmp.tv_usec + tmp.tv_sec * 1000000L;
tntx.modes = ADJ_OFFSET_SINGLESHOT;
}
else
tntx.modes = 0;
if (__adjtimex (&tntx) < 0) return -1;
if (otv)
{
if (tntx.offset < 0)
{
otv->tv_usec = -(-tntx.offset % 1000000);
otv->tv_sec = -(-tntx.offset / 1000000);
}
else
{
otv->tv_usec = tntx.offset % 1000000;
otv->tv_sec = tntx.offset / 1000000;
}
}
return 0;
}
weak_alias (__adjtime, adjtime)
|
GitWeb
