sl@0: /* crypto/asn1/a_utctm.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <time.h>
sl@0: #include "cryptlib.h"
sl@0: #include "o_time.h"
sl@0: #include <openssl/asn1.h>
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libcrypto_wsd_macros.h"
sl@0: #include "libcrypto_wsd.h"
sl@0: #endif
sl@0: 
sl@0: #if 0
sl@0: EXPORT_C int i2d_ASN1_UTCTIME(ASN1_UTCTIME *a, unsigned char **pp)
sl@0: 	{
sl@0: #ifndef CHARSET_EBCDIC
sl@0: 	return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
sl@0: 		V_ASN1_UTCTIME,V_ASN1_UNIVERSAL));
sl@0: #else
sl@0: 	/* KLUDGE! We convert to ascii before writing DER */
sl@0: 	int len;
sl@0: 	char tmp[24];
sl@0: 	ASN1_STRING x = *(ASN1_STRING *)a;
sl@0: 
sl@0: 	len = x.length;
sl@0: 	ebcdic2ascii(tmp, x.data, (len >= sizeof tmp) ? sizeof tmp : len);
sl@0: 	x.data = tmp;
sl@0: 	return i2d_ASN1_bytes(&x, pp, V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
sl@0: #endif
sl@0: 	}
sl@0: 
sl@0: 
sl@0: EXPORT_C ASN1_UTCTIME *d2i_ASN1_UTCTIME(ASN1_UTCTIME **a, unsigned char **pp,
sl@0: 	     long length)
sl@0: 	{
sl@0: 	ASN1_UTCTIME *ret=NULL;
sl@0: 
sl@0: 	ret=(ASN1_UTCTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
sl@0: 		V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
sl@0: 	if (ret == NULL)
sl@0: 		{
sl@0: 		ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ERR_R_NESTED_ASN1_ERROR);
sl@0: 		return(NULL);
sl@0: 		}
sl@0: #ifdef CHARSET_EBCDIC
sl@0: 	ascii2ebcdic(ret->data, ret->data, ret->length);
sl@0: #endif
sl@0: 	if (!ASN1_UTCTIME_check(ret))
sl@0: 		{
sl@0: 		ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ASN1_R_INVALID_TIME_FORMAT);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	return(ret);
sl@0: err:
sl@0: 	if ((ret != NULL) && ((a == NULL) || (*a != ret)))
sl@0: 		M_ASN1_UTCTIME_free(ret);
sl@0: 	return(NULL);
sl@0: 	}
sl@0: 
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: EXPORT_C int ASN1_UTCTIME_check(ASN1_UTCTIME *d)
sl@0: 	{
sl@0: #ifdef EMULATOR	
sl@0: 	static int min[8]={ 0, 1, 1, 0, 0, 0, 0, 0};
sl@0: 	static int max[8]={99,12,31,23,59,59,12,59};
sl@0: #else	
sl@0: 	static const int min[8]={ 0, 1, 1, 0, 0, 0, 0, 0};
sl@0: 	static const int max[8]={99,12,31,23,59,59,12,59};
sl@0: #endif
sl@0: 	char *a;
sl@0: 	int n,i,l,o;
sl@0: 
sl@0: 	if (d->type != V_ASN1_UTCTIME) return(0);
sl@0: 	l=d->length;
sl@0: 	a=(char *)d->data;
sl@0: 	o=0;
sl@0: 
sl@0: 	if (l < 11) goto err;
sl@0: 	for (i=0; i<6; i++)
sl@0: 		{
sl@0: 		if ((i == 5) && ((a[o] == 'Z') ||
sl@0: 			(a[o] == '+') || (a[o] == '-')))
sl@0: 			{ i++; break; }
sl@0: 		if ((a[o] < '0') || (a[o] > '9')) goto err;
sl@0: 		n= a[o]-'0';
sl@0: 		if (++o > l) goto err;
sl@0: 
sl@0: 		if ((a[o] < '0') || (a[o] > '9')) goto err;
sl@0: 		n=(n*10)+ a[o]-'0';
sl@0: 		if (++o > l) goto err;
sl@0: 
sl@0: 		if ((n < min[i]) || (n > max[i])) goto err;
sl@0: 		}
sl@0: 	if (a[o] == 'Z')
sl@0: 		o++;
sl@0: 	else if ((a[o] == '+') || (a[o] == '-'))
sl@0: 		{
sl@0: 		o++;
sl@0: 		if (o+4 > l) goto err;
sl@0: 		for (i=6; i<8; i++)
sl@0: 			{
sl@0: 			if ((a[o] < '0') || (a[o] > '9')) goto err;
sl@0: 			n= a[o]-'0';
sl@0: 			o++;
sl@0: 			if ((a[o] < '0') || (a[o] > '9')) goto err;
sl@0: 			n=(n*10)+ a[o]-'0';
sl@0: 			if ((n < min[i]) || (n > max[i])) goto err;
sl@0: 			o++;
sl@0: 			}
sl@0: 		}
sl@0: 	return(o == l);
sl@0: err:
sl@0: 	return(0);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str)
sl@0: 	{
sl@0: 	ASN1_UTCTIME t;
sl@0: 
sl@0: 	t.type=V_ASN1_UTCTIME;
sl@0: 	t.length=strlen(str);
sl@0: 	t.data=(unsigned char *)str;
sl@0: 	if (ASN1_UTCTIME_check(&t))
sl@0: 		{
sl@0: 		if (s != NULL)
sl@0: 			{
sl@0: 			if (!ASN1_STRING_set((ASN1_STRING *)s,
sl@0: 				(unsigned char *)str,t.length))
sl@0: 				return 0;
sl@0: 			s->type = V_ASN1_UTCTIME;
sl@0: 			}
sl@0: 		return(1);
sl@0: 		}
sl@0: 	else
sl@0: 		return(0);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
sl@0: 	{
sl@0: 	char *p;
sl@0: 	struct tm *ts;
sl@0: 	struct tm data;
sl@0: 	size_t len = 20;
sl@0: 
sl@0: 	if (s == NULL)
sl@0: 		s=M_ASN1_UTCTIME_new();
sl@0: 	if (s == NULL)
sl@0: 		return(NULL);
sl@0: 
sl@0: 	ts=OPENSSL_gmtime(&t, &data);
sl@0: 	if (ts == NULL)
sl@0: 		return(NULL);
sl@0: 
sl@0: 	p=(char *)s->data;
sl@0: 	if ((p == NULL) || ((size_t)s->length < len))
sl@0: 		{
sl@0: 		p=OPENSSL_malloc(len);
sl@0: 		if (p == NULL)
sl@0: 			{
sl@0: 			ASN1err(ASN1_F_ASN1_UTCTIME_SET,ERR_R_MALLOC_FAILURE);
sl@0: 			return(NULL);
sl@0: 			}
sl@0: 		if (s->data != NULL)
sl@0: 			OPENSSL_free(s->data);
sl@0: 		s->data=(unsigned char *)p;
sl@0: 		}
sl@0: 
sl@0: 	BIO_snprintf(p,len,"%02d%02d%02d%02d%02d%02dZ",ts->tm_year%100,
sl@0: 		     ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
sl@0: 	s->length=strlen(p);
sl@0: 	s->type=V_ASN1_UTCTIME;
sl@0: #ifdef CHARSET_EBCDIC_not
sl@0: 	ebcdic2ascii(s->data, s->data, s->length);
sl@0: #endif
sl@0: 	return(s);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: EXPORT_C int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t)
sl@0: 	{
sl@0: 	struct tm *tm;
sl@0: 	struct tm data;
sl@0: 	int offset;
sl@0: 	int year;
sl@0: 
sl@0: #define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
sl@0: 
sl@0: 	if (s->data[12] == 'Z')
sl@0: 		offset=0;
sl@0: 	else
sl@0: 		{
sl@0: 		offset = g2(s->data+13)*60+g2(s->data+15);
sl@0: 		if (s->data[12] == '-')
sl@0: 			offset = -offset;
sl@0: 		}
sl@0: 
sl@0: 	t -= offset*60; /* FIXME: may overflow in extreme cases */
sl@0: 
sl@0: 	tm = OPENSSL_gmtime(&t, &data);
sl@0: 	
sl@0: #define return_cmp(a,b) if ((a)<(b)) return -1; else if ((a)>(b)) return 1
sl@0: 	year = g2(s->data);
sl@0: 	if (year < 50)
sl@0: 		year += 100;
sl@0: 	return_cmp(year,              tm->tm_year);
sl@0: 	return_cmp(g2(s->data+2) - 1, tm->tm_mon);
sl@0: 	return_cmp(g2(s->data+4),     tm->tm_mday);
sl@0: 	return_cmp(g2(s->data+6),     tm->tm_hour);
sl@0: 	return_cmp(g2(s->data+8),     tm->tm_min);
sl@0: 	return_cmp(g2(s->data+10),    tm->tm_sec);
sl@0: #undef g2
sl@0: #undef return_cmp
sl@0: 
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: #if 0
sl@0: EXPORT_C time_t ASN1_UTCTIME_get(const ASN1_UTCTIME *s)
sl@0: 	{
sl@0: 	struct tm tm;
sl@0: 	int offset;
sl@0: 
sl@0: 	memset(&tm,'\0',sizeof tm);
sl@0: 
sl@0: #define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
sl@0: 	tm.tm_year=g2(s->data);
sl@0: 	if(tm.tm_year < 50)
sl@0: 		tm.tm_year+=100;
sl@0: 	tm.tm_mon=g2(s->data+2)-1;
sl@0: 	tm.tm_mday=g2(s->data+4);
sl@0: 	tm.tm_hour=g2(s->data+6);
sl@0: 	tm.tm_min=g2(s->data+8);
sl@0: 	tm.tm_sec=g2(s->data+10);
sl@0: 	if(s->data[12] == 'Z')
sl@0: 		offset=0;
sl@0: 	else
sl@0: 		{
sl@0: 		offset=g2(s->data+13)*60+g2(s->data+15);
sl@0: 		if(s->data[12] == '-')
sl@0: 			offset= -offset;
sl@0: 		}
sl@0: #undef g2
sl@0: 
sl@0: 	return mktime(&tm)-offset*60; /* FIXME: mktime assumes the current timezone
sl@0: 	                               * instead of UTC, and unless we rewrite OpenSSL
sl@0: 				       * in Lisp we cannot locally change the timezone
sl@0: 				       * without possibly interfering with other parts
sl@0: 	                               * of the program. timegm, which uses UTC, is
sl@0: 				       * non-standard.
sl@0: 	                               * Also time_t is inappropriate for general
sl@0: 	                               * UTC times because it may a 32 bit type. */
sl@0: 	}
sl@0: #endif