From 8daa83a594a2e98f39d764422bfbdbc62c9efd44 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 19:20:00 +0200 Subject: Adding upstream version 2:4.20.0+dfsg. Signed-off-by: Daniel Baumann --- third_party/heimdal/lib/krb5/time.c | 138 ++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 third_party/heimdal/lib/krb5/time.c (limited to 'third_party/heimdal/lib/krb5/time.c') diff --git a/third_party/heimdal/lib/krb5/time.c b/third_party/heimdal/lib/krb5/time.c new file mode 100644 index 0000000..d0d4af1 --- /dev/null +++ b/third_party/heimdal/lib/krb5/time.c @@ -0,0 +1,138 @@ +/* + * 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; +} -- cgit v1.2.3