ref: 7be7d0681f567e97fd37f937c2e5e486d6d74eab
dir: /sys/src/ape/lib/openssl/crypto/asn1/a_time.c/
/* crypto/asn1/a_time.c */
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. 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. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* [email protected].
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected]).
*
*/
/* This is an implementation of the ASN1 Time structure which is:
* Time ::= CHOICE {
* utcTime UTCTime,
* generalTime GeneralizedTime }
* written by Steve Henson.
*/
#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include "o_time.h"
#include <openssl/asn1t.h>
IMPLEMENT_ASN1_MSTRING(ASN1_TIME, B_ASN1_TIME)
IMPLEMENT_ASN1_FUNCTIONS(ASN1_TIME)
#if 0
int i2d_ASN1_TIME(ASN1_TIME *a, unsigned char **pp)
{
#ifdef CHARSET_EBCDIC
/* KLUDGE! We convert to ascii before writing DER */
char tmp[24];
ASN1_STRING tmpstr;
if(a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME) {
int len;
tmpstr = *(ASN1_STRING *)a;
len = tmpstr.length;
ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len);
tmpstr.data = tmp;
a = (ASN1_GENERALIZEDTIME *) &tmpstr;
}
#endif
if(a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME)
return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
a->type ,V_ASN1_UNIVERSAL));
ASN1err(ASN1_F_I2D_ASN1_TIME,ASN1_R_EXPECTING_A_TIME);
return -1;
}
#endif
ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t)
{
struct tm *ts;
struct tm data;
ts=OPENSSL_gmtime(&t,&data);
if (ts == NULL)
{
ASN1err(ASN1_F_ASN1_TIME_SET, ASN1_R_ERROR_GETTING_TIME);
return NULL;
}
if((ts->tm_year >= 50) && (ts->tm_year < 150))
return ASN1_UTCTIME_set(s, t);
return ASN1_GENERALIZEDTIME_set(s,t);
}
int ASN1_TIME_check(ASN1_TIME *t)
{
if (t->type == V_ASN1_GENERALIZEDTIME)
return ASN1_GENERALIZEDTIME_check(t);
else if (t->type == V_ASN1_UTCTIME)
return ASN1_UTCTIME_check(t);
return 0;
}
/* Convert an ASN1_TIME structure to GeneralizedTime */
ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t, ASN1_GENERALIZEDTIME **out)
{
ASN1_GENERALIZEDTIME *ret;
char *str;
int newlen;
if (!ASN1_TIME_check(t)) return NULL;
if (!out || !*out)
{
if (!(ret = ASN1_GENERALIZEDTIME_new ()))
return NULL;
if (out) *out = ret;
}
else ret = *out;
/* If already GeneralizedTime just copy across */
if (t->type == V_ASN1_GENERALIZEDTIME)
{
if(!ASN1_STRING_set(ret, t->data, t->length))
return NULL;
return ret;
}
/* grow the string */
if (!ASN1_STRING_set(ret, NULL, t->length + 2))
return NULL;
/* ASN1_STRING_set() allocated 'len + 1' bytes. */
newlen = t->length + 2 + 1;
str = (char *)ret->data;
/* Work out the century and prepend */
if (t->data[0] >= '5') BUF_strlcpy(str, "19", newlen);
else BUF_strlcpy(str, "20", newlen);
BUF_strlcat(str, (char *)t->data, newlen);
return ret;
}