| /* 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.] */ | |
| #include <openssl/asn1.h> | |
| #include <string.h> | |
| #include <time.h> | |
| #include <openssl/err.h> | |
| #include <openssl/mem.h> | |
| #include "internal.h" | |
| int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d) | |
| { | |
| static const int min[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; | |
| static const int max[8] = { 99, 12, 31, 23, 59, 59, 12, 59 }; | |
| char *a; | |
| int n, i, l, o; | |
| if (d->type != V_ASN1_UTCTIME) | |
| return (0); | |
| l = d->length; | |
| a = (char *)d->data; | |
| o = 0; | |
| if (l < 11) | |
| goto err; | |
| for (i = 0; i < 6; i++) { | |
| if ((i == 5) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) { | |
| i++; | |
| if (tm) | |
| tm->tm_sec = 0; | |
| 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 (tm) { | |
| switch (i) { | |
| case 0: | |
| tm->tm_year = n < 50 ? n + 100 : n; | |
| break; | |
| case 1: | |
| tm->tm_mon = n - 1; | |
| break; | |
| case 2: | |
| tm->tm_mday = n; | |
| break; | |
| case 3: | |
| tm->tm_hour = n; | |
| break; | |
| case 4: | |
| tm->tm_min = n; | |
| break; | |
| case 5: | |
| tm->tm_sec = n; | |
| break; | |
| } | |
| } | |
| } | |
| if (a[o] == 'Z') | |
| o++; | |
| else if ((a[o] == '+') || (a[o] == '-')) { | |
| int offsign = a[o] == '-' ? 1 : -1, offset = 0; | |
| o++; | |
| if (o + 4 > l) | |
| goto err; | |
| for (i = 6; i < 8; 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; | |
| if (tm) { | |
| if (i == 6) | |
| offset = n * 3600; | |
| else if (i == 7) | |
| offset += n * 60; | |
| } | |
| o++; | |
| } | |
| if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign)) | |
| return 0; | |
| } | |
| return o == l; | |
| err: | |
| return 0; | |
| } | |
| int ASN1_UTCTIME_check(const ASN1_UTCTIME *d) | |
| { | |
| return asn1_utctime_to_tm(NULL, d); | |
| } | |
| int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str) | |
| { | |
| ASN1_UTCTIME t; | |
| t.type = V_ASN1_UTCTIME; | |
| t.length = strlen(str); | |
| t.data = (unsigned char *)str; | |
| if (ASN1_UTCTIME_check(&t)) { | |
| if (s != NULL) { | |
| if (!ASN1_STRING_set((ASN1_STRING *)s, | |
| (unsigned char *)str, t.length)) | |
| return 0; | |
| s->type = V_ASN1_UTCTIME; | |
| } | |
| return (1); | |
| } else | |
| return (0); | |
| } | |
| ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t) | |
| { | |
| return ASN1_UTCTIME_adj(s, t, 0, 0); | |
| } | |
| ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t, | |
| int offset_day, long offset_sec) | |
| { | |
| char *p; | |
| struct tm *ts; | |
| struct tm data; | |
| size_t len = 20; | |
| int free_s = 0; | |
| if (s == NULL) { | |
| free_s = 1; | |
| s = ASN1_UTCTIME_new(); | |
| } | |
| if (s == NULL) | |
| goto err; | |
| ts = OPENSSL_gmtime(&t, &data); | |
| if (ts == NULL) | |
| goto err; | |
| if (offset_day || offset_sec) { | |
| if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec)) | |
| goto err; | |
| } | |
| if ((ts->tm_year < 50) || (ts->tm_year >= 150)) | |
| goto err; | |
| p = (char *)s->data; | |
| if ((p == NULL) || ((size_t)s->length < len)) { | |
| p = OPENSSL_malloc(len); | |
| if (p == NULL) { | |
| OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE); | |
| goto err; | |
| } | |
| if (s->data != NULL) | |
| OPENSSL_free(s->data); | |
| s->data = (unsigned char *)p; | |
| } | |
| BIO_snprintf(p, len, "%02d%02d%02d%02d%02d%02dZ", ts->tm_year % 100, | |
| ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min, | |
| ts->tm_sec); | |
| s->length = strlen(p); | |
| s->type = V_ASN1_UTCTIME; | |
| return (s); | |
| err: | |
| if (free_s && s) | |
| ASN1_UTCTIME_free(s); | |
| return NULL; | |
| } | |
| int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t) | |
| { | |
| struct tm stm, ttm; | |
| int day, sec; | |
| if (!asn1_utctime_to_tm(&stm, s)) | |
| return -2; | |
| if (!OPENSSL_gmtime(&t, &ttm)) | |
| return -2; | |
| if (!OPENSSL_gmtime_diff(&day, &sec, &ttm, &stm)) | |
| return -2; | |
| if (day > 0) | |
| return 1; | |
| if (day < 0) | |
| return -1; | |
| if (sec > 0) | |
| return 1; | |
| if (sec < 0) | |
| return -1; | |
| return 0; | |
| } |