230 lines
7.1 KiB
C
230 lines
7.1 KiB
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 <openssl/asn1.h>
|
|
|
|
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_new(void)
|
|
{ return M_ASN1_GENERALIZEDTIME_new(); }
|
|
|
|
void ASN1_GENERALIZEDTIME_free(ASN1_GENERALIZEDTIME *x)
|
|
{ M_ASN1_GENERALIZEDTIME_free(x); }
|
|
|
|
int i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp)
|
|
{
|
|
#ifdef CHARSET_EBCDIC
|
|
/* KLUDGE! We convert to ascii before writing DER */
|
|
int len;
|
|
char tmp[24];
|
|
ASN1_STRING 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
|
|
return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
|
|
V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL));
|
|
}
|
|
|
|
|
|
ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(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);
|
|
}
|
|
#ifdef CHARSET_EBCDIC
|
|
ascii2ebcdic(ret->data, ret->data, ret->length);
|
|
#endif
|
|
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)))
|
|
M_ASN1_GENERALIZEDTIME_free(ret);
|
|
return(NULL);
|
|
}
|
|
|
|
int ASN1_GENERALIZEDTIME_check(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(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(ASN1_GENERALIZEDTIME *s,
|
|
time_t t)
|
|
{
|
|
char *p;
|
|
struct tm *ts;
|
|
#if defined(THREADS) && !defined(WIN32)
|
|
struct tm data;
|
|
#endif
|
|
|
|
if (s == NULL)
|
|
s=M_ASN1_GENERALIZEDTIME_new();
|
|
if (s == NULL)
|
|
return(NULL);
|
|
|
|
#if defined(THREADS) && !defined(WIN32)
|
|
gmtime_r(&t,&data); /* should return &data, but doesn't on some systems, so we don't even look at the return value */
|
|
ts=&data;
|
|
#else
|
|
ts=gmtime(&t);
|
|
#endif
|
|
p=(char *)s->data;
|
|
if ((p == NULL) || (s->length < 16))
|
|
{
|
|
p=OPENSSL_malloc(20);
|
|
if (p == NULL) return(NULL);
|
|
if (s->data != NULL)
|
|
OPENSSL_free(s->data);
|
|
s->data=(unsigned char *)p;
|
|
}
|
|
|
|
sprintf(p,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year + 1900,
|
|
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;
|
|
#ifdef CHARSET_EBCDIC_not
|
|
ebcdic2ascii(s->data, s->data, s->length);
|
|
#endif
|
|
return(s);
|
|
}
|