ref: 5ebb1a29d8250027e8b7f2287f3bfa3a6f3d13ac
dir: /sys/src/ape/lib/openssl/crypto/asn1/a_gentm.c/
/* crypto/asn1/a_gentm.c */
/* Copyright (C) 1995-1998 Eric Young ([email protected])
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young ([email protected]).
* 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 ([email protected]).
*
* 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 ([email protected])"
* 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 ([email protected])"
*
* 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 "o_time.h"
#include <openssl/asn1.h>
#if 0
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);
}
#endif
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;
}
/* Optional fractional seconds: decimal point followed by one
* or more digits.
*/
if (a[o] == '.')
{
if (++o > l) goto err;
i = o;
while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
o++;
/* Must have at least one digit after decimal point */
if (i == o) 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, const 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)
{
if (!ASN1_STRING_set((ASN1_STRING *)s,
(unsigned char *)str,t.length))
return 0;
s->type=V_ASN1_GENERALIZEDTIME;
}
return(1);
}
else
return(0);
}
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
time_t t)
{
char *p;
struct tm *ts;
struct tm data;
size_t len = 20;
if (s == NULL)
s=M_ASN1_GENERALIZEDTIME_new();
if (s == NULL)
return(NULL);
ts=OPENSSL_gmtime(&t, &data);
if (ts == NULL)
return(NULL);
p=(char *)s->data;
if ((p == NULL) || ((size_t)s->length < len))
{
p=OPENSSL_malloc(len);
if (p == NULL)
{
ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_SET,
ERR_R_MALLOC_FAILURE);
return(NULL);
}
if (s->data != NULL)
OPENSSL_free(s->data);
s->data=(unsigned char *)p;
}
BIO_snprintf(p,len,"%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);
}