+#if 0
+int i2d_ASN1_UTCTIME(ASN1_UTCTIME *a, unsigned char **pp)
+{
+# ifndef CHARSET_EBCDIC
+ return (i2d_ASN1_bytes((ASN1_STRING *)a, pp,
+ V_ASN1_UTCTIME, V_ASN1_UNIVERSAL));
+# else
+ /* KLUDGE! We convert to ascii before writing DER */
+ int len;
+ char tmp[24];
+ ASN1_STRING x = *(ASN1_STRING *)a;
+
+ len = x.length;
+ ebcdic2ascii(tmp, x.data, (len >= sizeof tmp) ? sizeof tmp : len);
+ x.data = tmp;
+ return i2d_ASN1_bytes(&x, pp, V_ASN1_UTCTIME, V_ASN1_UNIVERSAL);
+# endif
+}
+
+ASN1_UTCTIME *d2i_ASN1_UTCTIME(ASN1_UTCTIME **a, unsigned char **pp,
+ long length)
+{
+ ASN1_UTCTIME *ret = NULL;
+
+ ret = (ASN1_UTCTIME *)d2i_ASN1_bytes((ASN1_STRING **)a, pp, length,
+ V_ASN1_UTCTIME, V_ASN1_UNIVERSAL);
+ if (ret == NULL) {
+ ASN1err(ASN1_F_D2I_ASN1_UTCTIME, ERR_R_NESTED_ASN1_ERROR);
+ return (NULL);
+ }
+# ifdef CHARSET_EBCDIC
+ ascii2ebcdic(ret->data, ret->data, ret->length);
+# endif
+ if (!ASN1_UTCTIME_check(ret)) {
+ ASN1err(ASN1_F_D2I_ASN1_UTCTIME, ASN1_R_INVALID_TIME_FORMAT);
+ goto err;
+ }
+
+ return (ret);
+ err:
+ if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+ M_ASN1_UTCTIME_free(ret);
+ return (NULL);
+}
+
+#endif
+
+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;
+}