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/*
* Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* GENERALIZEDTIME implementation. Based on UTCTIME
*/
#include <stdio.h>
#include <time.h>
#include "internal/cryptlib.h"
#include <openssl/asn1.h>
#include "asn1_locl.h"
/* This is the primary function used to parse ASN1_GENERALIZEDTIME */
int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
{
/* wrapper around asn1_time_to_tm */
if (d->type != V_ASN1_GENERALIZEDTIME)
return 0;
return asn1_time_to_tm(tm, d);
}
int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
{
return asn1_generalizedtime_to_tm(NULL, d);
}
int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
{
ASN1_GENERALIZEDTIME t;
t.type = V_ASN1_GENERALIZEDTIME;
t.length = strlen(str);
t.data = (unsigned char *)str;
t.flags = 0;
if (!ASN1_GENERALIZEDTIME_check(&t))
return 0;
if (s != NULL && !ASN1_STRING_copy(s, &t))
return 0;
return 1;
}
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
time_t t)
{
return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
}
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
time_t t, int offset_day,
long offset_sec)
{
struct tm *ts;
struct tm data;
ts = OPENSSL_gmtime(&t, &data);
if (ts == NULL)
return NULL;
if (offset_day || offset_sec) {
if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
return NULL;
}
return asn1_time_from_tm(s, ts, V_ASN1_GENERALIZEDTIME);
}
int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
{
if (tm->type != V_ASN1_GENERALIZEDTIME)
return 0;
return ASN1_TIME_print(bp, tm);
}