diff options
Diffstat (limited to 'thirdparty/openssl/crypto/asn1/a_time.c')
| -rw-r--r-- | thirdparty/openssl/crypto/asn1/a_time.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/asn1/a_time.c b/thirdparty/openssl/crypto/asn1/a_time.c new file mode 100644 index 0000000000..fcb2d565cd --- /dev/null +++ b/thirdparty/openssl/crypto/asn1/a_time.c @@ -0,0 +1,228 @@ +/* crypto/asn1/a_time.c */ +/* ==================================================================== + * Copyright (c) 1999 The OpenSSL Project. All rights reserved. + * + * 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 above 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 acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED 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 OpenSSL PROJECT OR + * ITS 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. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +/*- + * This is an implementation of the ASN1 Time structure which is: + * Time ::= CHOICE { + * utcTime UTCTime, + * generalTime GeneralizedTime } + * written by Steve Henson. + */ + +#include <stdio.h> +#include <time.h> +#include "cryptlib.h" +#include "o_time.h" +#include <openssl/asn1t.h> +#include "asn1_locl.h" + +IMPLEMENT_ASN1_MSTRING(ASN1_TIME, B_ASN1_TIME) + +IMPLEMENT_ASN1_FUNCTIONS(ASN1_TIME) + +#if 0 +int i2d_ASN1_TIME(ASN1_TIME *a, unsigned char **pp) +{ +# ifdef CHARSET_EBCDIC + /* KLUDGE! We convert to ascii before writing DER */ + char tmp[24]; + ASN1_STRING tmpstr; + + if (a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME) { + int len; + + tmpstr = *(ASN1_STRING *)a; + len = tmpstr.length; + ebcdic2ascii(tmp, tmpstr.data, + (len >= sizeof tmp) ? sizeof tmp : len); + tmpstr.data = tmp; + a = (ASN1_GENERALIZEDTIME *)&tmpstr; + } +# endif + if (a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME) + return (i2d_ASN1_bytes((ASN1_STRING *)a, pp, + a->type, V_ASN1_UNIVERSAL)); + ASN1err(ASN1_F_I2D_ASN1_TIME, ASN1_R_EXPECTING_A_TIME); + return -1; +} +#endif + +ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t) +{ + return ASN1_TIME_adj(s, t, 0, 0); +} + +ASN1_TIME *ASN1_TIME_adj(ASN1_TIME *s, time_t t, + int offset_day, long offset_sec) +{ + struct tm *ts; + struct tm data; + + ts = OPENSSL_gmtime(&t, &data); + if (ts == NULL) { + ASN1err(ASN1_F_ASN1_TIME_ADJ, ASN1_R_ERROR_GETTING_TIME); + return NULL; + } + if (offset_day || offset_sec) { + if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec)) + return NULL; + } + if ((ts->tm_year >= 50) && (ts->tm_year < 150)) + return ASN1_UTCTIME_adj(s, t, offset_day, offset_sec); + return ASN1_GENERALIZEDTIME_adj(s, t, offset_day, offset_sec); +} + +int ASN1_TIME_check(ASN1_TIME *t) +{ + if (t->type == V_ASN1_GENERALIZEDTIME) + return ASN1_GENERALIZEDTIME_check(t); + else if (t->type == V_ASN1_UTCTIME) + return ASN1_UTCTIME_check(t); + return 0; +} + +/* Convert an ASN1_TIME structure to GeneralizedTime */ +ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t, + ASN1_GENERALIZEDTIME **out) +{ + ASN1_GENERALIZEDTIME *ret; + char *str; + int newlen; + + if (!ASN1_TIME_check(t)) + return NULL; + + if (!out || !*out) { + if (!(ret = ASN1_GENERALIZEDTIME_new())) + return NULL; + if (out) + *out = ret; + } else + ret = *out; + + /* If already GeneralizedTime just copy across */ + if (t->type == V_ASN1_GENERALIZEDTIME) { + if (!ASN1_STRING_set(ret, t->data, t->length)) + return NULL; + return ret; + } + + /* grow the string */ + if (!ASN1_STRING_set(ret, NULL, t->length + 2)) + return NULL; + /* ASN1_STRING_set() allocated 'len + 1' bytes. */ + newlen = t->length + 2 + 1; + str = (char *)ret->data; + /* Work out the century and prepend */ + if (t->data[0] >= '5') + BUF_strlcpy(str, "19", newlen); + else + BUF_strlcpy(str, "20", newlen); + + BUF_strlcat(str, (char *)t->data, newlen); + + return ret; +} + +int ASN1_TIME_set_string(ASN1_TIME *s, const char *str) +{ + ASN1_TIME t; + + t.length = strlen(str); + t.data = (unsigned char *)str; + t.flags = 0; + + t.type = V_ASN1_UTCTIME; + + if (!ASN1_TIME_check(&t)) { + t.type = V_ASN1_GENERALIZEDTIME; + if (!ASN1_TIME_check(&t)) + return 0; + } + + if (s && !ASN1_STRING_copy((ASN1_STRING *)s, (ASN1_STRING *)&t)) + return 0; + + return 1; +} + +static int asn1_time_to_tm(struct tm *tm, const ASN1_TIME *t) +{ + if (t == NULL) { + time_t now_t; + time(&now_t); + if (OPENSSL_gmtime(&now_t, tm)) + return 1; + return 0; + } + + if (t->type == V_ASN1_UTCTIME) + return asn1_utctime_to_tm(tm, t); + else if (t->type == V_ASN1_GENERALIZEDTIME) + return asn1_generalizedtime_to_tm(tm, t); + + return 0; +} + +int ASN1_TIME_diff(int *pday, int *psec, + const ASN1_TIME *from, const ASN1_TIME *to) +{ + struct tm tm_from, tm_to; + if (!asn1_time_to_tm(&tm_from, from)) + return 0; + if (!asn1_time_to_tm(&tm_to, to)) + return 0; + return OPENSSL_gmtime_diff(pday, psec, &tm_from, &tm_to); +} |