[thirdparty/openssl.git] / crypto / asn1 / a_utctm.c

/* crypto/asn1/a_utctm.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * 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 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 acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include "asn1.h"

/* ASN1err(ASN1_F_ASN1_UTCTIME_NEW,ASN1_R_UTCTIME_TOO_LONG);
 * ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ASN1_R_EXPECTING_A_UTCTIME);
 */

int i2d_ASN1_UTCTIME(ASN1_UTCTIME *a, unsigned char **pp)
	{
	return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
		V_ASN1_UTCTIME,V_ASN1_UNIVERSAL));
	}


ASN1_UTCTIME *d2i_ASN1_UTCTIME(ASN1_UTCTIME **a, unsigned char **pp,
	     long length)
	{
	ASN1_UTCTIME *ret=NULL;

	ret=(ASN1_UTCTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
		V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
	if (ret == NULL)
		{
		ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ERR_R_NESTED_ASN1_ERROR);
		return(NULL);
		}
	if (!ASN1_UTCTIME_check(ret))
		{
		ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ASN1_R_INVALID_TIME_FORMAT);
		goto err;
		}

	return(ret);
err:
	if ((ret != NULL) && ((a == NULL) || (*a != ret)))
		ASN1_UTCTIME_free(ret);
	return(NULL);
	}

int ASN1_UTCTIME_check(ASN1_UTCTIME *d)
	{
	static int min[8]={ 0, 1, 1, 0, 0, 0, 0, 0};
	static int max[8]={99,12,31,23,59,59,12,59};
	char *a;
	int n,i,l,o;

	if (d->type != V_ASN1_UTCTIME) return(0);
	l=d->length;
	a=(char *)d->data;
	o=0;

	if (l < 11) goto err;
	for (i=0; i<6; i++)
		{
		if ((i == 5) && ((a[o] == 'Z') ||
			(a[o] == '+') || (a[o] == '-')))
			{ i++; break; }
		if ((a[o] < '0') || (a[o] > '9')) goto err;
		n= a[o]-'0';
		if (++o > l) goto err;

		if ((a[o] < '0') || (a[o] > '9')) goto err;
		n=(n*10)+ a[o]-'0';
		if (++o > l) goto err;

		if ((n < min[i]) || (n > max[i])) goto err;
		}
	if (a[o] == 'Z')
		o++;
	else if ((a[o] == '+') || (a[o] == '-'))
		{
		o++;
		if (o+4 > l) goto err;
		for (i=6; i<8; i++)
			{
			if ((a[o] < '0') || (a[o] > '9')) goto err;
			n= a[o]-'0';
			o++;
			if ((a[o] < '0') || (a[o] > '9')) goto err;
			n=(n*10)+ a[o]-'0';
			if ((n < min[i]) || (n > max[i])) goto err;
			o++;
			}
		}
	return(o == l);
err:
	return(0);
	}

int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, char *str)
	{
	ASN1_UTCTIME t;

	t.type=V_ASN1_UTCTIME;
	t.length=strlen(str);
	t.data=(unsigned char *)str;
	if (ASN1_UTCTIME_check(&t))
		{
		if (s != NULL)
			{
			ASN1_STRING_set((ASN1_STRING *)s,
				(unsigned char *)str,t.length);
			}
		return(1);
		}
	else
		return(0);
	}

ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
	{
	char *p;
	struct tm *ts;
#if defined(THREADS) && !defined(WIN32)
	struct tm data;
#endif

	if (s == NULL)
		s=ASN1_UTCTIME_new();
	if (s == NULL)
		return(NULL);

#if defined(THREADS) && !defined(WIN32)
	ts=(struct tm *)gmtime_r(&t,&data);
#else
	ts=(struct tm *)gmtime(&t);
#endif
	p=(char *)s->data;
	if ((p == NULL) || (s->length < 14))
		{
		p=Malloc(20);
		if (p == NULL) return(NULL);
		if (s->data != NULL)
			Free(s->data);
		s->data=(unsigned char *)p;
		}

	sprintf(p,"%02d%02d%02d%02d%02d%02dZ",ts->tm_year%100,
		ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
	s->length=strlen(p);
	s->type=V_ASN1_UTCTIME;
	return(s);
	}
Commit	Line	Data
d02b48c6	1	/* crypto/asn1/a_utctm.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	5	* This package is an SSL implementation written
	6	* by Eric Young (eay@cryptsoft.com).
	7	* The implementation was written so as to conform with Netscapes SSL.
	8	*
	9	* This library is free for commercial and non-commercial use as long as
	10	* the following conditions are aheared to. The following conditions
	11	* apply to all code found in this distribution, be it the RC4, RSA,
	12	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	13	* included with this distribution is covered by the same copyright terms
	14	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	15	*
	16	* Copyright remains Eric Young's, and as such any Copyright notices in
	17	* the code are not to be removed.
	18	* If this package is used in a product, Eric Young should be given attribution
	19	* as the author of the parts of the library used.
	20	* This can be in the form of a textual message at program startup or
	21	* in documentation (online or textual) provided with the package.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	26	* 1. Redistributions of source code must retain the copyright
	27	* notice, this list of conditions and the following disclaimer.
	28	* 2. Redistributions in binary form must reproduce the above copyright
	29	* notice, this list of conditions and the following disclaimer in the
	30	* documentation and/or other materials provided with the distribution.
	31	* 3. All advertising materials mentioning features or use of this software
	32	* must display the following acknowledgement:
	33	* "This product includes cryptographic software written by
	34	* Eric Young (eay@cryptsoft.com)"
	35	* The word 'cryptographic' can be left out if the rouines from the library
	36	* being used are not cryptographic related :-).
	37	* 4. If you include any Windows specific code (or a derivative thereof) from
	38	* the apps directory (application code) you must include an acknowledgement:
	39	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	40	*
	41	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	42	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	43	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	44	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	45	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	46	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	47	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	49	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	50	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	51	* SUCH DAMAGE.
	52	*
	53	* The licence and distribution terms for any publically available version or
	54	* derivative of this code cannot be changed. i.e. this code cannot simply be
	55	* copied and put under another distribution licence
	56	* [including the GNU Public Licence.]
	57	*/
	58
	59	#include <stdio.h>
	60	#include <time.h>
	61	#include "cryptlib.h"
	62	#include "asn1.h"
	63
	64	/* ASN1err(ASN1_F_ASN1_UTCTIME_NEW,ASN1_R_UTCTIME_TOO_LONG);
	65	* ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ASN1_R_EXPECTING_A_UTCTIME);
	66	*/
67
6b691a5c	68	int i2d_ASN1_UTCTIME(ASN1_UTCTIME a, unsigned char *pp)
d02b48c6 RE	69	{
	70	return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
	71	V_ASN1_UTCTIME,V_ASN1_UNIVERSAL));
	72	}
	73
	74
6b691a5c UM	75	ASN1_UTCTIME d2i_ASN1_UTCTIME(ASN1_UTCTIME a, unsigned char *pp,
6b691a5c UM	76	long length)
d02b48c6 RE	77	{
	78	ASN1_UTCTIME *ret=NULL;
	79
	80	ret=(ASN1_UTCTIME )d2i_ASN1_bytes((ASN1_STRING *)a,pp,length,
	81	V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
	82	if (ret == NULL)
	83	{
dfeab068	84	ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ERR_R_NESTED_ASN1_ERROR);
d02b48c6 RE	85	return(NULL);
	86	}
	87	if (!ASN1_UTCTIME_check(ret))
	88	{
	89	ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ASN1_R_INVALID_TIME_FORMAT);
	90	goto err;
	91	}
	92
	93	return(ret);
	94	err:
	95	if ((ret != NULL) && ((a == NULL) \|\| (*a != ret)))
	96	ASN1_UTCTIME_free(ret);
	97	return(NULL);
	98	}
	99
6b691a5c	100	int ASN1_UTCTIME_check(ASN1_UTCTIME *d)
d02b48c6 RE	101	{
	102	static int min[8]={ 0, 1, 1, 0, 0, 0, 0, 0};
	103	static int max[8]={99,12,31,23,59,59,12,59};
	104	char *a;
	105	int n,i,l,o;
	106
	107	if (d->type != V_ASN1_UTCTIME) return(0);
	108	l=d->length;
	109	a=(char *)d->data;
	110	o=0;
	111
	112	if (l < 11) goto err;
	113	for (i=0; i<6; i++)
	114	{
	115	if ((i == 5) && ((a[o] == 'Z') \|\|
	116	(a[o] == '+') \|\| (a[o] == '-')))
	117	{ i++; break; }
	118	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
	119	n= a[o]-'0';
	120	if (++o > l) goto err;
	121
	122	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
	123	n=(n*10)+ a[o]-'0';
	124	if (++o > l) goto err;
	125
	126	if ((n < min[i]) \|\| (n > max[i])) goto err;
	127	}
	128	if (a[o] == 'Z')
	129	o++;
	130	else if ((a[o] == '+') \|\| (a[o] == '-'))
	131	{
	132	o++;
	133	if (o+4 > l) goto err;
	134	for (i=6; i<8; i++)
	135	{
	136	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
	137	n= a[o]-'0';
	138	o++;
	139	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
	140	n=(n*10)+ a[o]-'0';
	141	if ((n < min[i]) \|\| (n > max[i])) goto err;
	142	o++;
	143	}
	144	}
	145	return(o == l);
	146	err:
	147	return(0);
	148	}
	149
6b691a5c	150	int ASN1_UTCTIME_set_string(ASN1_UTCTIME s, char str)
58964a49 RE	151	{
	152	ASN1_UTCTIME t;
	153
	154	t.type=V_ASN1_UTCTIME;
	155	t.length=strlen(str);
	156	t.data=(unsigned char *)str;
	157	if (ASN1_UTCTIME_check(&t))
	158	{
	159	if (s != NULL)
	160	{
	161	ASN1_STRING_set((ASN1_STRING *)s,
	162	(unsigned char *)str,t.length);
	163	}
	164	return(1);
	165	}
	166	else
	167	return(0);
	168	}
	169
6b691a5c	170	ASN1_UTCTIME ASN1_UTCTIME_set(ASN1_UTCTIME s, time_t t)
d02b48c6 RE	171	{
	172	char *p;
	173	struct tm *ts;
dfeab068	174	#if defined(THREADS) && !defined(WIN32)
d02b48c6 RE	175	struct tm data;
	176	#endif
	177
	178	if (s == NULL)
	179	s=ASN1_UTCTIME_new();
	180	if (s == NULL)
	181	return(NULL);
	182
dfeab068	183	#if defined(THREADS) && !defined(WIN32)
d02b48c6 RE	184	ts=(struct tm *)gmtime_r(&t,&data);
	185	#else
	186	ts=(struct tm *)gmtime(&t);
	187	#endif
	188	p=(char *)s->data;
	189	if ((p == NULL) \|\| (s->length < 14))
	190	{
	191	p=Malloc(20);
	192	if (p == NULL) return(NULL);
	193	if (s->data != NULL)
	194	Free(s->data);
	195	s->data=(unsigned char *)p;
	196	}
	197
	198	sprintf(p,"%02d%02d%02d%02d%02d%02dZ",ts->tm_year%100,
	199	ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
	200	s->length=strlen(p);
	201	s->type=V_ASN1_UTCTIME;
	202	return(s);
	203	}