/src/samba/third_party/heimdal/lib/krb5/time.c

Source
/*
 * 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"

/**
 * 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_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_string_to_deltat(const char *string, krb5_deltat *deltat)
{
    if((*deltat = parse_time(string, "s")) == -1)
  return KRB5_DELTAT_BADFORMAT;
    return 0;
}

krb5_deltat
krb5_time_abs(krb5_deltat t1, krb5_deltat t2)
{
    krb5_deltat t = t1 - t2;
    if (t < 0)
  return -t;
    return t;
}

Line	Count	Source
1		/*
2		* Copyright (c) 1997-2004 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 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 "krb5_locl.h"
35
36		/**
37		* Set the absolute time that the caller knows the kdc has so the
38		* kerberos library can calculate the relative diffrence beteen the
39		* KDC time and local system time.
40		*
41		* @param context Keberos 5 context.
42		* @param sec The applications new of "now" in seconds
43		* @param usec The applications new of "now" in micro seconds
44
45		* @return Kerberos 5 error code, see krb5_get_error_message().
46		*
47		* @ingroup krb5
48		*/
49
50		KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
51		krb5_set_real_time (krb5_context context,
52		krb5_timestamp sec,
53		int32_t usec)
54	0	{
55	0	struct timeval tv;
56
57	0	gettimeofday(&tv, NULL);
58
59	0	context->kdc_sec_offset = sec - tv.tv_sec;
60
61		/**
62		* If the caller passes in a negative usec, its assumed to be
63		* unknown and the function will use the current time usec.
64		*/
65	0	if (usec >= 0) {
66	0	context->kdc_usec_offset = usec - tv.tv_usec;
67
68	0	if (context->kdc_usec_offset < 0) {
69	0	context->kdc_sec_offset--;
70	0	context->kdc_usec_offset += 1000000;
71	0	}
72	0	} else
73	0	context->kdc_usec_offset = tv.tv_usec;
74
75	0	return 0;
76	0	}
77
78		/*
79		* return ``corrected'' time in `timeret'.
80		*/
81
82		KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
83		krb5_timeofday (krb5_context context,
84		krb5_timestamp *timeret)
85	0	{
86	0	*timeret = time(NULL) + context->kdc_sec_offset;
87	0	return 0;
88	0	}
89
90		/*
91		* like gettimeofday but with time correction to the KDC
92		*/
93
94		KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
95		krb5_us_timeofday (krb5_context context,
96		krb5_timestamp *sec,
97		int32_t *usec)
98	0	{
99	0	struct timeval tv;
100
101	0	gettimeofday (&tv, NULL);
102
103	0	*sec = tv.tv_sec + context->kdc_sec_offset;
104	0	usec = tv.tv_usec; / XXX */
105	0	return 0;
106	0	}
107
108		KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
109		krb5_format_time(krb5_context context, time_t t,
110		char *s, size_t len, krb5_boolean include_time)
111	0	{
112	0	struct tm *tm;
113	0	if(context->log_utc)
114	0	tm = gmtime (&t);
115	0	else
116	0	tm = localtime(&t);
117	0	if(tm == NULL \|\|
118	0	strftime(s, len, include_time ? context->time_fmt : context->date_fmt, tm) == 0)
119	0	snprintf(s, len, "%ld", (long)t);
120	0	return 0;
121	0	}
122
123		KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
124		krb5_string_to_deltat(const char string, krb5_deltat deltat)
125	0	{
126	0	if((*deltat = parse_time(string, "s")) == -1)
127	0	return KRB5_DELTAT_BADFORMAT;
128	0	return 0;
129	0	}
130
131		krb5_deltat
132		krb5_time_abs(krb5_deltat t1, krb5_deltat t2)
133	0	{
134	0	krb5_deltat t = t1 - t2;
135	0	if (t < 0)
136	0	return -t;
137	0	return t;
138	0	}

Coverage Report

Created: 2025-12-31 06:20