diff options
Diffstat (limited to 'openssl/crypto/asn1/a_utctm.c')
| -rw-r--r-- | openssl/crypto/asn1/a_utctm.c | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/a_utctm.c b/openssl/crypto/asn1/a_utctm.c new file mode 100644 index 0000000..724a10b --- /dev/null +++ b/openssl/crypto/asn1/a_utctm.c @@ -0,0 +1,352 @@ +/* crypto/asn1/a_utctm.c */ +/* 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 <stdio.h> +#include <time.h> +#include "cryptlib.h" +#include "o_time.h" +#include <openssl/asn1.h> +#include "asn1_locl.h" + +#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; +} + +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) { + ASN1err(ASN1_F_ASN1_UTCTIME_ADJ, 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; +#ifdef CHARSET_EBCDIC_not + ebcdic2ascii(s->data, s->data, s->length); +#endif + 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 + + /* + * 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. + */ + return mktime(&tm) - offset * 60; +} +#endif |