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

/* crypto/asn1/a_gentm.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.]
 */

/* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */

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

/* ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_NEW,ASN1_R_GENERALIZEDTIME_TOO_LONG);
 * ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_EXPECTING_A_GENERALIZEDTIME);
 */

int i2d_ASN1_GENERALIZEDTIME(a,pp)
ASN1_GENERALIZEDTIME *a;
unsigned char **pp;
	{
	return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
		V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL));
	}


ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(a, pp, length)
ASN1_GENERALIZEDTIME **a;
unsigned char **pp;
long length;
	{
	ASN1_GENERALIZEDTIME *ret=NULL;

	ret=(ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
		V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL);
	if (ret == NULL)
		{
		ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR);
		return(NULL);
		}
	if (!ASN1_GENERALIZEDTIME_check(ret))
		{
		ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT);
		goto err;
		}

	return(ret);
err:
	if ((ret != NULL) && ((a == NULL) || (*a != ret)))
		ASN1_GENERALIZEDTIME_free(ret);
	return(NULL);
	}

int ASN1_GENERALIZEDTIME_check(d)
ASN1_GENERALIZEDTIME *d;
	{
	static int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0};
	static int max[9]={99, 99,12,31,23,59,59,12,59};
	char *a;
	int n,i,l,o;

	if (d->type != V_ASN1_GENERALIZEDTIME) return(0);
	l=d->length;
	a=(char *)d->data;
	o=0;
	/* GENERALIZEDTIME is similar to UTCTIME except the year is
         * represented as YYYY. This stuff treats everything as a two digit
         * field so make first two fields 00 to 99
         */
	if (l < 13) goto err;
	for (i=0; i<7; i++)
		{
		if ((i == 6) && ((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=7; i<9; 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_GENERALIZEDTIME_set_string(s,str)
ASN1_GENERALIZEDTIME *s;
char *str;
	{
	ASN1_GENERALIZEDTIME t;

	t.type=V_ASN1_GENERALIZEDTIME;
	t.length=strlen(str);
	t.data=(unsigned char *)str;
	if (ASN1_GENERALIZEDTIME_check(&t))
		{
		if (s != NULL)
			{
			ASN1_STRING_set((ASN1_STRING *)s,
				(unsigned char *)str,t.length);
			}
		return(1);
		}
	else
		return(0);
	}

ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(s, t)
ASN1_GENERALIZEDTIME *s;
time_t t;
	{
	char *p;
	struct tm *ts;
#if defined(THREADS) && !defined(WIN32)
	struct tm data;
#endif

	if (s == NULL)
		s=ASN1_GENERALIZEDTIME_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 < 16))
		{
		p=Malloc(20);
		if (p == NULL) return(NULL);
		if (s->data != NULL)
			Free(s->data);
		s->data=(unsigned char *)p;
		}

	sprintf(p,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year,
		ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
	s->length=strlen(p);
	s->type=V_ASN1_GENERALIZEDTIME;
	return(s);
	}
Commit	Line	Data
f6aed2cd DSH	1	/* crypto/asn1/a_gentm.c */
	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
	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	/* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */
	60
	61	#include <stdio.h>
	62	#include <time.h>
	63	#include "cryptlib.h"
	64	#include "asn1.h"
65
66	/* ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_NEW,ASN1_R_GENERALIZEDTIME_TOO_LONG);
67	* ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_EXPECTING_A_GENERALIZEDTIME);
68	*/
69
70	int i2d_ASN1_GENERALIZEDTIME(a,pp)
71	ASN1_GENERALIZEDTIME *a;
72	unsigned char **pp;
73	{
74	return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
75	V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL));
76	}
77
78
79	ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(a, pp, length)
80	ASN1_GENERALIZEDTIME **a;
81	unsigned char **pp;
82	long length;
83	{
84	ASN1_GENERALIZEDTIME *ret=NULL;
85
86	ret=(ASN1_GENERALIZEDTIME )d2i_ASN1_bytes((ASN1_STRING *)a,pp,length,
87	V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL);
88	if (ret == NULL)
89	{
90	ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR);
91	return(NULL);
92	}
93	if (!ASN1_GENERALIZEDTIME_check(ret))
94	{
95	ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT);
96	goto err;
97	}
98
99	return(ret);
100	err:
101	if ((ret != NULL) && ((a == NULL) \|\| (*a != ret)))
102	ASN1_GENERALIZEDTIME_free(ret);
103	return(NULL);
104	}
105
106	int ASN1_GENERALIZEDTIME_check(d)
107	ASN1_GENERALIZEDTIME *d;
108	{
109	static int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0};
110	static int max[9]={99, 99,12,31,23,59,59,12,59};
111	char *a;
112	int n,i,l,o;
113
114	if (d->type != V_ASN1_GENERALIZEDTIME) return(0);
115	l=d->length;
116	a=(char *)d->data;
117	o=0;
118	/* GENERALIZEDTIME is similar to UTCTIME except the year is
119	* represented as YYYY. This stuff treats everything as a two digit
120	* field so make first two fields 00 to 99
121	*/
122	if (l < 13) goto err;
123	for (i=0; i<7; i++)
124	{
125	if ((i == 6) && ((a[o] == 'Z') \|\|
126	(a[o] == '+') \|\| (a[o] == '-')))
127	{ i++; break; }
128	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
129	n= a[o]-'0';
130	if (++o > l) goto err;
131
132	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
133	n=(n*10)+ a[o]-'0';
134	if (++o > l) goto err;
135
136	if ((n < min[i]) \|\| (n > max[i])) goto err;
137	}
138	if (a[o] == 'Z')
139	o++;
140	else if ((a[o] == '+') \|\| (a[o] == '-'))
141	{
142	o++;
143	if (o+4 > l) goto err;
144	for (i=7; i<9; i++)
145	{
146	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
147	n= a[o]-'0';
148	o++;
149	if ((a[o] < '0') \|\| (a[o] > '9')) goto err;
150	n=(n*10)+ a[o]-'0';
151	if ((n < min[i]) \|\| (n > max[i])) goto err;
152	o++;
153	}
154	}
155	return(o == l);
156	err:
157	return(0);
158	}
159
160	int ASN1_GENERALIZEDTIME_set_string(s,str)
161	ASN1_GENERALIZEDTIME *s;
162	char *str;
163	{
164	ASN1_GENERALIZEDTIME t;
165
166	t.type=V_ASN1_GENERALIZEDTIME;
167	t.length=strlen(str);
168	t.data=(unsigned char *)str;
169	if (ASN1_GENERALIZEDTIME_check(&t))
170	{
171	if (s != NULL)
172	{
173	ASN1_STRING_set((ASN1_STRING *)s,
174	(unsigned char *)str,t.length);
175	}
176	return(1);
177	}
178	else
179	return(0);
180	}
181
182	ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(s, t)
183	ASN1_GENERALIZEDTIME *s;
184	time_t t;
185	{
186	char *p;
187	struct tm *ts;
188	#if defined(THREADS) && !defined(WIN32)
189	struct tm data;
190	#endif
191
192	if (s == NULL)
193	s=ASN1_GENERALIZEDTIME_new();
194	if (s == NULL)
195	return(NULL);
196
197	#if defined(THREADS) && !defined(WIN32)
198	ts=(struct tm *)gmtime_r(&t,&data);
199	#else
200	ts=(struct tm *)gmtime(&t);
201	#endif
202	p=(char *)s->data;
203	if ((p == NULL) \|\| (s->length < 16))
204	{
205	p=Malloc(20);
206	if (p == NULL) return(NULL);
207	if (s->data != NULL)
208	Free(s->data);
209	s->data=(unsigned char *)p;
210	}
211
212	sprintf(p,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year,
213	ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
214	s->length=strlen(p);
215	s->type=V_ASN1_GENERALIZEDTIME;
216	return(s);
217	}