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. 8296341Sdelphij * 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). 15296341Sdelphij * 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. 22296341Sdelphij * 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 :-). 37296341Sdelphij * 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)" 40296341Sdelphij * 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. 52296341Sdelphij * 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 59296341Sdelphij/* 60296341Sdelphij * GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME 61296341Sdelphij */ 6255714Skris 6355714Skris#include <stdio.h> 6455714Skris#include <time.h> 6555714Skris#include "cryptlib.h" 66109998Smarkm#include "o_time.h" 6755714Skris#include <openssl/asn1.h> 6855714Skris 69109998Smarkm#if 0 7059191Skris 7155714Skrisint i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp) 72296341Sdelphij{ 73296341Sdelphij# ifdef CHARSET_EBCDIC 74296341Sdelphij /* KLUDGE! We convert to ascii before writing DER */ 75296341Sdelphij int len; 76296341Sdelphij char tmp[24]; 77296341Sdelphij ASN1_STRING tmpstr = *(ASN1_STRING *)a; 7855714Skris 79296341Sdelphij len = tmpstr.length; 80296341Sdelphij ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len); 81296341Sdelphij tmpstr.data = tmp; 8255714Skris 83296341Sdelphij a = (ASN1_GENERALIZEDTIME *)&tmpstr; 84296341Sdelphij# endif 85296341Sdelphij return (i2d_ASN1_bytes((ASN1_STRING *)a, pp, 86296341Sdelphij V_ASN1_GENERALIZEDTIME, V_ASN1_UNIVERSAL)); 87296341Sdelphij} 8855714Skris 8955714SkrisASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a, 90296341Sdelphij unsigned char **pp, 91296341Sdelphij long length) 92296341Sdelphij{ 93296341Sdelphij ASN1_GENERALIZEDTIME *ret = NULL; 9455714Skris 95296341Sdelphij ret = 96296341Sdelphij (ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a, pp, length, 97296341Sdelphij V_ASN1_GENERALIZEDTIME, 98296341Sdelphij V_ASN1_UNIVERSAL); 99296341Sdelphij if (ret == NULL) { 100296341Sdelphij ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME, ERR_R_NESTED_ASN1_ERROR); 101296341Sdelphij return (NULL); 102296341Sdelphij } 103296341Sdelphij# ifdef CHARSET_EBCDIC 104296341Sdelphij ascii2ebcdic(ret->data, ret->data, ret->length); 105296341Sdelphij# endif 106296341Sdelphij if (!ASN1_GENERALIZEDTIME_check(ret)) { 107296341Sdelphij ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME, ASN1_R_INVALID_TIME_FORMAT); 108296341Sdelphij goto err; 109296341Sdelphij } 11055714Skris 111296341Sdelphij return (ret); 112296341Sdelphij err: 113296341Sdelphij if ((ret != NULL) && ((a == NULL) || (*a != ret))) 114296341Sdelphij M_ASN1_GENERALIZEDTIME_free(ret); 115296341Sdelphij return (NULL); 116296341Sdelphij} 11755714Skris 118109998Smarkm#endif 119109998Smarkm 12055714Skrisint ASN1_GENERALIZEDTIME_check(ASN1_GENERALIZEDTIME *d) 121296341Sdelphij{ 122296341Sdelphij static const int min[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 }; 123296341Sdelphij static const int max[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 }; 124296341Sdelphij char *a; 125296341Sdelphij int n, i, l, o; 12655714Skris 127296341Sdelphij if (d->type != V_ASN1_GENERALIZEDTIME) 128296341Sdelphij return (0); 129296341Sdelphij l = d->length; 130296341Sdelphij a = (char *)d->data; 131296341Sdelphij o = 0; 132296341Sdelphij /* 133296341Sdelphij * GENERALIZEDTIME is similar to UTCTIME except the year is represented 134296341Sdelphij * as YYYY. This stuff treats everything as a two digit field so make 135296341Sdelphij * first two fields 00 to 99 136296341Sdelphij */ 137296341Sdelphij if (l < 13) 138296341Sdelphij goto err; 139296341Sdelphij for (i = 0; i < 7; i++) { 140296341Sdelphij if ((i == 6) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) { 141296341Sdelphij i++; 142296341Sdelphij break; 143296341Sdelphij } 144296341Sdelphij if ((a[o] < '0') || (a[o] > '9')) 145296341Sdelphij goto err; 146296341Sdelphij n = a[o] - '0'; 147296341Sdelphij if (++o > l) 148296341Sdelphij goto err; 14955714Skris 150296341Sdelphij if ((a[o] < '0') || (a[o] > '9')) 151296341Sdelphij goto err; 152296341Sdelphij n = (n * 10) + a[o] - '0'; 153296341Sdelphij if (++o > l) 154296341Sdelphij goto err; 15555714Skris 156296341Sdelphij if ((n < min[i]) || (n > max[i])) 157296341Sdelphij goto err; 158296341Sdelphij } 159296341Sdelphij /* 160296341Sdelphij * Optional fractional seconds: decimal point followed by one or more 161296341Sdelphij * digits. 162296341Sdelphij */ 163296341Sdelphij if (a[o] == '.') { 164296341Sdelphij if (++o > l) 165296341Sdelphij goto err; 166296341Sdelphij i = o; 167296341Sdelphij while ((a[o] >= '0') && (a[o] <= '9') && (o <= l)) 168296341Sdelphij o++; 169296341Sdelphij /* Must have at least one digit after decimal point */ 170296341Sdelphij if (i == o) 171296341Sdelphij goto err; 172296341Sdelphij } 173109998Smarkm 174296341Sdelphij if (a[o] == 'Z') 175296341Sdelphij o++; 176296341Sdelphij else if ((a[o] == '+') || (a[o] == '-')) { 177296341Sdelphij o++; 178296341Sdelphij if (o + 4 > l) 179296341Sdelphij goto err; 180296341Sdelphij for (i = 7; i < 9; i++) { 181296341Sdelphij if ((a[o] < '0') || (a[o] > '9')) 182296341Sdelphij goto err; 183296341Sdelphij n = a[o] - '0'; 184296341Sdelphij o++; 185296341Sdelphij if ((a[o] < '0') || (a[o] > '9')) 186296341Sdelphij goto err; 187296341Sdelphij n = (n * 10) + a[o] - '0'; 188296341Sdelphij if ((n < min[i]) || (n > max[i])) 189296341Sdelphij goto err; 190296341Sdelphij o++; 191296341Sdelphij } 192296341Sdelphij } else { 193296341Sdelphij /* Missing time zone information. */ 194296341Sdelphij goto err; 195296341Sdelphij } 196296341Sdelphij return (o == l); 197296341Sdelphij err: 198296341Sdelphij return (0); 199296341Sdelphij} 20055714Skris 201160814Ssimonint ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str) 202296341Sdelphij{ 203296341Sdelphij ASN1_GENERALIZEDTIME t; 20455714Skris 205296341Sdelphij t.type = V_ASN1_GENERALIZEDTIME; 206296341Sdelphij t.length = strlen(str); 207296341Sdelphij t.data = (unsigned char *)str; 208296341Sdelphij if (ASN1_GENERALIZEDTIME_check(&t)) { 209296341Sdelphij if (s != NULL) { 210296341Sdelphij if (!ASN1_STRING_set((ASN1_STRING *)s, 211296341Sdelphij (unsigned char *)str, t.length)) 212296341Sdelphij return 0; 213296341Sdelphij s->type = V_ASN1_GENERALIZEDTIME; 214296341Sdelphij } 215296341Sdelphij return (1); 216296341Sdelphij } else 217296341Sdelphij return (0); 218296341Sdelphij} 21955714Skris 22055714SkrisASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s, 221296341Sdelphij time_t t) 222296341Sdelphij{ 223296341Sdelphij return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0); 224296341Sdelphij} 225238405Sjkim 226238405SjkimASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s, 227296341Sdelphij time_t t, int offset_day, 228296341Sdelphij long offset_sec) 229296341Sdelphij{ 230296341Sdelphij char *p; 231296341Sdelphij struct tm *ts; 232296341Sdelphij struct tm data; 233296341Sdelphij size_t len = 20; 23455714Skris 235296341Sdelphij if (s == NULL) 236296341Sdelphij s = M_ASN1_GENERALIZEDTIME_new(); 237296341Sdelphij if (s == NULL) 238296341Sdelphij return (NULL); 23955714Skris 240296341Sdelphij ts = OPENSSL_gmtime(&t, &data); 241296341Sdelphij if (ts == NULL) 242296341Sdelphij return (NULL); 243109998Smarkm 244296341Sdelphij if (offset_day || offset_sec) { 245296341Sdelphij if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec)) 246296341Sdelphij return NULL; 247296341Sdelphij } 248238405Sjkim 249296341Sdelphij p = (char *)s->data; 250296341Sdelphij if ((p == NULL) || ((size_t)s->length < len)) { 251296341Sdelphij p = OPENSSL_malloc(len); 252296341Sdelphij if (p == NULL) { 253296341Sdelphij ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ, ERR_R_MALLOC_FAILURE); 254296341Sdelphij return (NULL); 255296341Sdelphij } 256296341Sdelphij if (s->data != NULL) 257296341Sdelphij OPENSSL_free(s->data); 258296341Sdelphij s->data = (unsigned char *)p; 259296341Sdelphij } 26055714Skris 261296341Sdelphij BIO_snprintf(p, len, "%04d%02d%02d%02d%02d%02dZ", ts->tm_year + 1900, 262296341Sdelphij ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min, 263296341Sdelphij ts->tm_sec); 264296341Sdelphij s->length = strlen(p); 265296341Sdelphij s->type = V_ASN1_GENERALIZEDTIME; 26655714Skris#ifdef CHARSET_EBCDIC_not 267296341Sdelphij ebcdic2ascii(s->data, s->data, s->length); 26855714Skris#endif 269296341Sdelphij return (s); 270296341Sdelphij} 271