155714Skris/* crypto/asn1/a_gentm.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 855714Skris * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555714Skris * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 2255714Skris * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 3755714Skris * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055714Skris * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 5255714Skris * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris/* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */ 6055714Skris 6155714Skris#include <stdio.h> 6255714Skris#include <time.h> 6355714Skris#include "cryptlib.h" 64109998Smarkm#include "o_time.h" 6555714Skris#include <openssl/asn1.h> 6655714Skris 67109998Smarkm#if 0 6859191Skris 6955714Skrisint i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp) 7055714Skris { 7155714Skris#ifdef CHARSET_EBCDIC 7255714Skris /* KLUDGE! We convert to ascii before writing DER */ 7355714Skris int len; 7455714Skris char tmp[24]; 7555714Skris ASN1_STRING tmpstr = *(ASN1_STRING *)a; 7655714Skris 7755714Skris len = tmpstr.length; 7855714Skris ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len); 7955714Skris tmpstr.data = tmp; 8055714Skris 8155714Skris a = (ASN1_GENERALIZEDTIME *) &tmpstr; 8255714Skris#endif 8355714Skris return(i2d_ASN1_bytes((ASN1_STRING *)a,pp, 8455714Skris V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL)); 8555714Skris } 8655714Skris 8755714Skris 8855714SkrisASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a, 8955714Skris unsigned char **pp, long length) 9055714Skris { 9155714Skris ASN1_GENERALIZEDTIME *ret=NULL; 9255714Skris 9355714Skris ret=(ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length, 9455714Skris V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL); 9555714Skris if (ret == NULL) 9655714Skris { 9755714Skris ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR); 9855714Skris return(NULL); 9955714Skris } 10055714Skris#ifdef CHARSET_EBCDIC 10155714Skris ascii2ebcdic(ret->data, ret->data, ret->length); 10255714Skris#endif 10355714Skris if (!ASN1_GENERALIZEDTIME_check(ret)) 10455714Skris { 10555714Skris ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT); 10655714Skris goto err; 10755714Skris } 10855714Skris 10955714Skris return(ret); 11055714Skriserr: 11155714Skris if ((ret != NULL) && ((a == NULL) || (*a != ret))) 11259191Skris M_ASN1_GENERALIZEDTIME_free(ret); 11355714Skris return(NULL); 11455714Skris } 11555714Skris 116109998Smarkm#endif 117109998Smarkm 11855714Skrisint ASN1_GENERALIZEDTIME_check(ASN1_GENERALIZEDTIME *d) 11955714Skris { 120238405Sjkim static const int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0}; 121238405Sjkim static const int max[9]={99, 99,12,31,23,59,59,12,59}; 12255714Skris char *a; 12355714Skris int n,i,l,o; 12455714Skris 12555714Skris if (d->type != V_ASN1_GENERALIZEDTIME) return(0); 12655714Skris l=d->length; 12755714Skris a=(char *)d->data; 12855714Skris o=0; 12955714Skris /* GENERALIZEDTIME is similar to UTCTIME except the year is 13055714Skris * represented as YYYY. This stuff treats everything as a two digit 13155714Skris * field so make first two fields 00 to 99 13255714Skris */ 13355714Skris if (l < 13) goto err; 13455714Skris for (i=0; i<7; i++) 13555714Skris { 13655714Skris if ((i == 6) && ((a[o] == 'Z') || 13755714Skris (a[o] == '+') || (a[o] == '-'))) 13855714Skris { i++; break; } 13955714Skris if ((a[o] < '0') || (a[o] > '9')) goto err; 14055714Skris n= a[o]-'0'; 14155714Skris if (++o > l) goto err; 14255714Skris 14355714Skris if ((a[o] < '0') || (a[o] > '9')) goto err; 14455714Skris n=(n*10)+ a[o]-'0'; 14555714Skris if (++o > l) goto err; 14655714Skris 14755714Skris if ((n < min[i]) || (n > max[i])) goto err; 14855714Skris } 149109998Smarkm /* Optional fractional seconds: decimal point followed by one 150109998Smarkm * or more digits. 151109998Smarkm */ 152109998Smarkm if (a[o] == '.') 153109998Smarkm { 154109998Smarkm if (++o > l) goto err; 155109998Smarkm i = o; 156109998Smarkm while ((a[o] >= '0') && (a[o] <= '9') && (o <= l)) 157109998Smarkm o++; 158109998Smarkm /* Must have at least one digit after decimal point */ 159109998Smarkm if (i == o) goto err; 160109998Smarkm } 161109998Smarkm 16255714Skris if (a[o] == 'Z') 16355714Skris o++; 16455714Skris else if ((a[o] == '+') || (a[o] == '-')) 16555714Skris { 16655714Skris o++; 16755714Skris if (o+4 > l) goto err; 16855714Skris for (i=7; i<9; i++) 16955714Skris { 17055714Skris if ((a[o] < '0') || (a[o] > '9')) goto err; 17155714Skris n= a[o]-'0'; 17255714Skris o++; 17355714Skris if ((a[o] < '0') || (a[o] > '9')) goto err; 17455714Skris n=(n*10)+ a[o]-'0'; 17555714Skris if ((n < min[i]) || (n > max[i])) goto err; 17655714Skris o++; 17755714Skris } 17855714Skris } 179238405Sjkim else 180238405Sjkim { 181238405Sjkim /* Missing time zone information. */ 182238405Sjkim goto err; 183238405Sjkim } 18455714Skris return(o == l); 18555714Skriserr: 18655714Skris return(0); 18755714Skris } 18855714Skris 189160814Ssimonint ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str) 19055714Skris { 19155714Skris ASN1_GENERALIZEDTIME t; 19255714Skris 19355714Skris t.type=V_ASN1_GENERALIZEDTIME; 19455714Skris t.length=strlen(str); 19555714Skris t.data=(unsigned char *)str; 19655714Skris if (ASN1_GENERALIZEDTIME_check(&t)) 19755714Skris { 19855714Skris if (s != NULL) 19955714Skris { 200160814Ssimon if (!ASN1_STRING_set((ASN1_STRING *)s, 201160814Ssimon (unsigned char *)str,t.length)) 202160814Ssimon return 0; 203109998Smarkm s->type=V_ASN1_GENERALIZEDTIME; 20455714Skris } 20555714Skris return(1); 20655714Skris } 20755714Skris else 20855714Skris return(0); 20955714Skris } 21055714Skris 21155714SkrisASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s, 21255714Skris time_t t) 21355714Skris { 214238405Sjkim return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0); 215238405Sjkim } 216238405Sjkim 217238405SjkimASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s, 218238405Sjkim time_t t, int offset_day, long offset_sec) 219238405Sjkim { 22055714Skris char *p; 22155714Skris struct tm *ts; 22255714Skris struct tm data; 223127128Snectar size_t len = 20; 22455714Skris 22555714Skris if (s == NULL) 22659191Skris s=M_ASN1_GENERALIZEDTIME_new(); 22755714Skris if (s == NULL) 22855714Skris return(NULL); 22955714Skris 230109998Smarkm ts=OPENSSL_gmtime(&t, &data); 231109998Smarkm if (ts == NULL) 232109998Smarkm return(NULL); 233109998Smarkm 234238405Sjkim if (offset_day || offset_sec) 235238405Sjkim { 236238405Sjkim if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec)) 237238405Sjkim return NULL; 238238405Sjkim } 239238405Sjkim 24055714Skris p=(char *)s->data; 241127128Snectar if ((p == NULL) || ((size_t)s->length < len)) 24255714Skris { 243127128Snectar p=OPENSSL_malloc(len); 244160814Ssimon if (p == NULL) 245160814Ssimon { 246238405Sjkim ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ, 247160814Ssimon ERR_R_MALLOC_FAILURE); 248160814Ssimon return(NULL); 249160814Ssimon } 25055714Skris if (s->data != NULL) 25168651Skris OPENSSL_free(s->data); 25255714Skris s->data=(unsigned char *)p; 25355714Skris } 25455714Skris 255127128Snectar BIO_snprintf(p,len,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year + 1900, 256127128Snectar ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec); 25755714Skris s->length=strlen(p); 25855714Skris s->type=V_ASN1_GENERALIZEDTIME; 25955714Skris#ifdef CHARSET_EBCDIC_not 26055714Skris ebcdic2ascii(s->data, s->data, s->length); 26155714Skris#endif 26255714Skris return(s); 26355714Skris } 264