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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* Copyright (c) 1997-2004 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "krb5_locl.h"
RCSID("$Id$");
/**
* Set the absolute time that the caller knows the kdc has so the
* kerberos library can calculate the relative diffrence beteen the
* KDC time and local system time.
*
* @param context Keberos 5 context.
* @param sec The applications new of "now" in seconds
* @param usec The applications new of "now" in micro seconds
* @return Kerberos 5 error code, see krb5_get_error_message().
*
* @ingroup krb5
*/
krb5_error_code KRB5_LIB_FUNCTION
krb5_set_real_time (krb5_context context,
krb5_timestamp sec,
int32_t usec)
{
struct timeval tv;
gettimeofday(&tv, NULL);
context->kdc_sec_offset = sec - tv.tv_sec;
/**
* If the caller passes in a negative usec, its assumed to be
* unknown and the function will use the current time usec.
*/
if (usec >= 0) {
context->kdc_usec_offset = usec - tv.tv_usec;
if (context->kdc_usec_offset < 0) {
context->kdc_sec_offset--;
context->kdc_usec_offset += 1000000;
}
} else
context->kdc_usec_offset = tv.tv_usec;
return 0;
}
/*
* return ``corrected'' time in `timeret'.
*/
krb5_error_code KRB5_LIB_FUNCTION
krb5_timeofday (krb5_context context,
krb5_timestamp *timeret)
{
*timeret = time(NULL) + context->kdc_sec_offset;
return 0;
}
/*
* like gettimeofday but with time correction to the KDC
*/
krb5_error_code KRB5_LIB_FUNCTION
krb5_us_timeofday (krb5_context context,
krb5_timestamp *sec,
int32_t *usec)
{
struct timeval tv;
gettimeofday (&tv, NULL);
*sec = tv.tv_sec + context->kdc_sec_offset;
*usec = tv.tv_usec; /* XXX */
return 0;
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_format_time(krb5_context context, time_t t,
char *s, size_t len, krb5_boolean include_time)
{
struct tm *tm;
if(context->log_utc)
tm = gmtime (&t);
else
tm = localtime(&t);
if(tm == NULL ||
strftime(s, len, include_time ? context->time_fmt : context->date_fmt, tm) == 0)
snprintf(s, len, "%ld", (long)t);
return 0;
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_string_to_deltat(const char *string, krb5_deltat *deltat)
{
if((*deltat = parse_time(string, "s")) == -1)
return KRB5_DELTAT_BADFORMAT;
return 0;
}
|
