2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
12 #include "internal/cryptlib.h"
13 #include <openssl/asn1.h>
14 #include "asn1_locl.h"
16 int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d)
18 /* wrapper around ans1_time_to_tm */
19 if (d->type != V_ASN1_UTCTIME)
21 return asn1_time_to_tm(tm, d);
24 int ASN1_UTCTIME_check(const ASN1_UTCTIME *d)
26 return asn1_utctime_to_tm(NULL, d);
29 int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str)
33 t.type = V_ASN1_UTCTIME;
34 t.length = strlen(str);
35 t.data = (unsigned char *)str;
38 if (ASN1_UTCTIME_check(&t)) {
40 if (!ASN1_STRING_set((ASN1_STRING *)s, str, t.length))
42 s->type = V_ASN1_UTCTIME;
49 ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
51 return ASN1_UTCTIME_adj(s, t, 0, 0);
54 ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
55 int offset_day, long offset_sec)
60 const size_t len = 20;
64 s = ASN1_UTCTIME_new();
70 ts = OPENSSL_gmtime(&t, &data);
74 if (offset_day || offset_sec) {
75 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
79 if ((ts->tm_year < 50) || (ts->tm_year >= 150))
83 if ((p == NULL) || ((size_t)s->length < len)) {
84 p = OPENSSL_malloc(len);
86 ASN1err(ASN1_F_ASN1_UTCTIME_ADJ, ERR_R_MALLOC_FAILURE);
89 OPENSSL_free(s->data);
90 s->data = (unsigned char *)p;
93 s->length = BIO_snprintf(p, len, "%02d%02d%02d%02d%02d%02dZ",
94 ts->tm_year % 100, ts->tm_mon + 1, ts->tm_mday,
95 ts->tm_hour, ts->tm_min, ts->tm_sec);
96 s->type = V_ASN1_UTCTIME;
97 #ifdef CHARSET_EBCDIC_not
98 ebcdic2ascii(s->data, s->data, s->length);
103 ASN1_UTCTIME_free(s);
107 int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t)
112 if (!asn1_utctime_to_tm(&stm, s))
115 if (OPENSSL_gmtime(&t, &ttm) == NULL)
118 if (!OPENSSL_gmtime_diff(&day, &sec, &ttm, &stm))
132 static const char _asn1_mon[12][4] = {
133 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
134 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
137 int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm)
142 int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
145 v = (const char *)tm->data;
151 for (i = 0; i < 10; i++)
152 if ((v[i] > '9') || (v[i] < '0'))
154 y = (v[0] - '0') * 10 + (v[1] - '0');
157 M = (v[2] - '0') * 10 + (v[3] - '0');
158 if ((M > 12) || (M < 1))
160 d = (v[4] - '0') * 10 + (v[5] - '0');
161 h = (v[6] - '0') * 10 + (v[7] - '0');
162 m = (v[8] - '0') * 10 + (v[9] - '0');
163 if (tm->length >= 12 &&
164 (v[10] >= '0') && (v[10] <= '9') && (v[11] >= '0') && (v[11] <= '9'))
165 s = (v[10] - '0') * 10 + (v[11] - '0');
167 return BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s",
168 _asn1_mon[M - 1], d, h, m, s, y + 1900,
169 (gmt) ? " GMT" : "") > 0;
171 BIO_write(bp, "Bad time value", 14);