/* 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 #include #include #include #include #include #if 0 int i2d_ASN1_UTCTIME(ASN1_UTCTIME *a, unsigned char **pp) { return (i2d_ASN1_bytes((ASN1_STRING *)a, pp, V_ASN1_UTCTIME, V_ASN1_UNIVERSAL)); } 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) { OPENSSL_PUT_ERROR(ASN1, ERR_R_NESTED_ASN1_ERROR); return (NULL); } if (!ASN1_UTCTIME_check(ret)) { OPENSSL_PUT_ERROR(ASN1, 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; } 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; 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