--- /dev/null
+/* 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 "asn1_locl.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 = M_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)
+ M_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;
+}
+
+#if 0
+time_t ASN1_UTCTIME_get(const ASN1_UTCTIME *s)
+{
+ struct tm tm;
+ int offset;
+
+ OPENSSL_memset(&tm, '\0', sizeof tm);
+
+# define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
+ tm.tm_year = g2(s->data);
+ if (tm.tm_year < 50)
+ tm.tm_year += 100;
+ tm.tm_mon = g2(s->data + 2) - 1;
+ tm.tm_mday = g2(s->data + 4);
+ tm.tm_hour = g2(s->data + 6);
+ tm.tm_min = g2(s->data + 8);
+ tm.tm_sec = g2(s->data + 10);
+ if (s->data[12] == 'Z')
+ offset = 0;
+ else {
+ offset = g2(s->data + 13) * 60 + g2(s->data + 15);
+ if (s->data[12] == '-')
+ offset = -offset;
+ }
+# undef g2
+
+ return mktime(&tm) - offset * 60; /* FIXME: mktime assumes the current
+ * timezone instead of UTC, and unless
+ * we rewrite OpenSSL in Lisp we cannot
+ * locally change the timezone without
+ * possibly interfering with other
+ * parts of the program. timegm, which
+ * uses UTC, is non-standard. Also
+ * time_t is inappropriate for general
+ * UTC times because it may a 32 bit
+ * type. */
+}
+#endif
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