openssl/crypto/asn1/a_time.c
Dr. Stephen Henson f6aed2cda6 Time to blow up the source tree :-) This is the beginning of support for
GeneralizedTime. At several points PKIX specifies that GeneralizedTime can be
used but OpenSSL doesn't currently support it. This patch adds several files
and a bunch of functions.

Of interest is the ASN1_TIME structure and its related functions. At several
points certificates, CRLs et al specify that a time can be expressed as a
choice of UTCTime and GeneralizedTime. Currently OpenSSL interprets this
(wrongly) as UTCTime because GeneralizedTime isn't supported. The ASN1_TIME
stuff provides this functionality.

Still todo is to trace which cert and CRL points need an ASN1_TIME and modify
the utilities appropriately and of course fix all the bugs.

Note new OpenSSL copyright in the new file a_time.c. I didn't put it in
a_gentm.c because it is a minimally modified form a_utctm.c .

Since this adds new files and error codes you will need to do a 'make errors'
at the top level to add the new codes.
1999-01-17 00:13:14 +00:00

114 lines
3.9 KiB
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
* licensing@OpenSSL.org.
*
* 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
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* 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 "asn1.h"
int i2d_ASN1_TIME(a,pp)
ASN1_TIME *a;
unsigned char **pp;
{
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;
}
ASN1_TIME *d2i_ASN1_TIME(a, pp, length)
ASN1_TIME **a;
unsigned char **pp;
long length;
{
unsigned char tag;
tag = **pp & ~V_ASN1_CONSTRUCTED;
if(tag == (V_ASN1_UTCTIME|V_ASN1_UNIVERSAL))
return d2i_ASN1_UTCTIME(a, pp, length);
if(tag == (V_ASN1_GENERALIZEDTIME|V_ASN1_UNIVERSAL))
return d2i_ASN1_GENERALIZEDTIME(a, pp, length);
ASN1err(ASN1_F_D2I_ASN1_TIME,ASN1_R_EXPECTING_A_TIME);
return(NULL);
}
ASN1_TIME *ASN1_TIME_set(s, t)
ASN1_TIME *s;
time_t t;
{
struct tm *ts;
#if defined(THREADS) && !defined(WIN32)
struct tm data;
#endif
#if defined(THREADS) && !defined(WIN32)
ts=(struct tm *)gmtime_r(&t,&data);
#else
ts=(struct tm *)gmtime(&t);
#endif
if((ts->tm_year >= 1950) && (ts->tm_year < 2050))
return ASN1_UTCTIME_set(s, t);
return ASN1_GENERALIZEDTIME_set(s,t);
}