xref: /freebsd-src/crypto/openssl/doc/man3/ASN1_TIME_set.pod (revision b077aed33b7b6aefca7b17ddb250cf521f938613)
1e71b7053SJung-uk Kim=pod
2e71b7053SJung-uk Kim
3e71b7053SJung-uk Kim=head1 NAME
4e71b7053SJung-uk Kim
5e71b7053SJung-uk KimASN1_TIME_set, ASN1_UTCTIME_set, ASN1_GENERALIZEDTIME_set,
6e71b7053SJung-uk KimASN1_TIME_adj, ASN1_UTCTIME_adj, ASN1_GENERALIZEDTIME_adj,
7e71b7053SJung-uk KimASN1_TIME_check, ASN1_UTCTIME_check, ASN1_GENERALIZEDTIME_check,
8e71b7053SJung-uk KimASN1_TIME_set_string, ASN1_UTCTIME_set_string, ASN1_GENERALIZEDTIME_set_string,
9e71b7053SJung-uk KimASN1_TIME_set_string_X509,
10e71b7053SJung-uk KimASN1_TIME_normalize,
11e71b7053SJung-uk KimASN1_TIME_to_tm,
12*b077aed3SPierre ProncheryASN1_TIME_print, ASN1_TIME_print_ex, ASN1_UTCTIME_print, ASN1_GENERALIZEDTIME_print,
13e71b7053SJung-uk KimASN1_TIME_diff,
14e71b7053SJung-uk KimASN1_TIME_cmp_time_t, ASN1_UTCTIME_cmp_time_t,
15e71b7053SJung-uk KimASN1_TIME_compare,
16*b077aed3SPierre ProncheryASN1_TIME_to_generalizedtime,
17*b077aed3SPierre ProncheryASN1_TIME_dup, ASN1_UTCTIME_dup, ASN1_GENERALIZEDTIME_dup - ASN.1 Time functions
18e71b7053SJung-uk Kim
19e71b7053SJung-uk Kim=head1 SYNOPSIS
20e71b7053SJung-uk Kim
21e71b7053SJung-uk Kim ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t);
22e71b7053SJung-uk Kim ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t);
23e71b7053SJung-uk Kim ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
24e71b7053SJung-uk Kim                                                time_t t);
25e71b7053SJung-uk Kim
26e71b7053SJung-uk Kim ASN1_TIME *ASN1_TIME_adj(ASN1_TIME *s, time_t t, int offset_day,
27e71b7053SJung-uk Kim                          long offset_sec);
28e71b7053SJung-uk Kim ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
29e71b7053SJung-uk Kim                                int offset_day, long offset_sec);
30e71b7053SJung-uk Kim ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
31e71b7053SJung-uk Kim                                                time_t t, int offset_day,
32e71b7053SJung-uk Kim                                                long offset_sec);
33e71b7053SJung-uk Kim
34e71b7053SJung-uk Kim int ASN1_TIME_set_string(ASN1_TIME *s, const char *str);
35e71b7053SJung-uk Kim int ASN1_TIME_set_string_X509(ASN1_TIME *s, const char *str);
36e71b7053SJung-uk Kim int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str);
37e71b7053SJung-uk Kim int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s,
38e71b7053SJung-uk Kim                                     const char *str);
39e71b7053SJung-uk Kim
40e71b7053SJung-uk Kim int ASN1_TIME_normalize(ASN1_TIME *s);
41e71b7053SJung-uk Kim
42e71b7053SJung-uk Kim int ASN1_TIME_check(const ASN1_TIME *t);
43e71b7053SJung-uk Kim int ASN1_UTCTIME_check(const ASN1_UTCTIME *t);
44e71b7053SJung-uk Kim int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *t);
45e71b7053SJung-uk Kim
46e71b7053SJung-uk Kim int ASN1_TIME_print(BIO *b, const ASN1_TIME *s);
47*b077aed3SPierre Pronchery int ASN1_TIME_print_ex(BIO *bp, const ASN1_TIME *tm, unsigned long flags);
48e71b7053SJung-uk Kim int ASN1_UTCTIME_print(BIO *b, const ASN1_UTCTIME *s);
49e71b7053SJung-uk Kim int ASN1_GENERALIZEDTIME_print(BIO *b, const ASN1_GENERALIZEDTIME *s);
50e71b7053SJung-uk Kim
51e71b7053SJung-uk Kim int ASN1_TIME_to_tm(const ASN1_TIME *s, struct tm *tm);
52e71b7053SJung-uk Kim int ASN1_TIME_diff(int *pday, int *psec, const ASN1_TIME *from,
53e71b7053SJung-uk Kim                    const ASN1_TIME *to);
54e71b7053SJung-uk Kim
55e71b7053SJung-uk Kim int ASN1_TIME_cmp_time_t(const ASN1_TIME *s, time_t t);
56e71b7053SJung-uk Kim int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t);
57e71b7053SJung-uk Kim
58e71b7053SJung-uk Kim int ASN1_TIME_compare(const ASN1_TIME *a, const ASN1_TIME *b);
59e71b7053SJung-uk Kim
60e71b7053SJung-uk Kim ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t,
61e71b7053SJung-uk Kim                                                    ASN1_GENERALIZEDTIME **out);
62e71b7053SJung-uk Kim
63*b077aed3SPierre Pronchery ASN1_TIME *ASN1_TIME_dup(const ASN1_TIME *t);
64*b077aed3SPierre Pronchery ASN1_UTCTIME *ASN1_UTCTIME_dup(const ASN1_UTCTIME *t);
65*b077aed3SPierre Pronchery ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_dup(const ASN1_GENERALIZEDTIME *t);
66*b077aed3SPierre Pronchery
67e71b7053SJung-uk Kim=head1 DESCRIPTION
68e71b7053SJung-uk Kim
69e71b7053SJung-uk KimThe ASN1_TIME_set(), ASN1_UTCTIME_set() and ASN1_GENERALIZEDTIME_set()
70*b077aed3SPierre Proncheryfunctions set the structure I<s> to the time represented by the time_t
71*b077aed3SPierre Proncheryvalue I<t>. If I<s> is NULL a new time structure is allocated and returned.
72e71b7053SJung-uk Kim
73e71b7053SJung-uk KimThe ASN1_TIME_adj(), ASN1_UTCTIME_adj() and ASN1_GENERALIZEDTIME_adj()
74*b077aed3SPierre Proncheryfunctions set the time structure I<s> to the time represented
75*b077aed3SPierre Proncheryby the time I<offset_day> and I<offset_sec> after the time_t value I<t>.
76*b077aed3SPierre ProncheryThe values of I<offset_day> or I<offset_sec> can be negative to set a
77*b077aed3SPierre Proncherytime before I<t>. The I<offset_sec> value can also exceed the number of
78*b077aed3SPierre Proncheryseconds in a day. If I<s> is NULL a new structure is allocated
79e71b7053SJung-uk Kimand returned.
80e71b7053SJung-uk Kim
81e71b7053SJung-uk KimThe ASN1_TIME_set_string(), ASN1_UTCTIME_set_string() and
82*b077aed3SPierre ProncheryASN1_GENERALIZEDTIME_set_string() functions set the time structure I<s>
83*b077aed3SPierre Proncheryto the time represented by string I<str> which must be in appropriate ASN.1
84*b077aed3SPierre Proncherytime format (for example YYMMDDHHMMSSZ or YYYYMMDDHHMMSSZ). If I<s> is NULL
85*b077aed3SPierre Proncherythis function performs a format check on I<str> only. The string I<str>
86*b077aed3SPierre Proncheryis copied into I<s>.
87e71b7053SJung-uk Kim
88*b077aed3SPierre ProncheryASN1_TIME_set_string_X509() sets B<ASN1_TIME> structure I<s> to the time
89*b077aed3SPierre Proncheryrepresented by string I<str> which must be in appropriate time format
90e71b7053SJung-uk Kimthat RFC 5280 requires, which means it only allows YYMMDDHHMMSSZ and
91e71b7053SJung-uk KimYYYYMMDDHHMMSSZ (leap second is rejected), all other ASN.1 time format
92*b077aed3SPierre Proncheryare not allowed. If I<s> is NULL this function performs a format check
93*b077aed3SPierre Proncheryon I<str> only.
94e71b7053SJung-uk Kim
95*b077aed3SPierre ProncheryThe ASN1_TIME_normalize() function converts an B<ASN1_GENERALIZEDTIME> or
96*b077aed3SPierre ProncheryB<ASN1_UTCTIME> into a time value that can be used in a certificate. It
97e71b7053SJung-uk Kimshould be used after the ASN1_TIME_set_string() functions and before
98e71b7053SJung-uk KimASN1_TIME_print() functions to get consistent (i.e. GMT) results.
99e71b7053SJung-uk Kim
100e71b7053SJung-uk KimThe ASN1_TIME_check(), ASN1_UTCTIME_check() and ASN1_GENERALIZEDTIME_check()
101*b077aed3SPierre Proncheryfunctions check the syntax of the time structure I<s>.
102e71b7053SJung-uk Kim
103e71b7053SJung-uk KimThe ASN1_TIME_print(), ASN1_UTCTIME_print() and ASN1_GENERALIZEDTIME_print()
104*b077aed3SPierre Proncheryfunctions print the time structure I<s> to BIO I<b> in human readable
105e71b7053SJung-uk Kimformat. It will be of the format MMM DD HH:MM:SS YYYY [GMT], for example
106*b077aed3SPierre Pronchery"Feb  3 00:55:52 2015 GMT", which does not include a newline.
107*b077aed3SPierre ProncheryIf the time structure has invalid format it prints out "Bad time value" and
108*b077aed3SPierre Proncheryreturns an error. The output for generalized time may include a fractional part
109e71b7053SJung-uk Kimfollowing the second.
110e71b7053SJung-uk Kim
111*b077aed3SPierre ProncheryASN1_TIME_print_ex() provides I<flags> to specify the output format of the
112*b077aed3SPierre Proncherydatetime. This can be either B<ASN1_DTFLGS_RFC822> or B<ASN1_DTFLGS_ISO8601>.
113e71b7053SJung-uk Kim
114*b077aed3SPierre ProncheryASN1_TIME_to_tm() converts the time I<s> to the standard I<tm> structure.
115*b077aed3SPierre ProncheryIf I<s> is NULL, then the current time is converted. The output time is GMT.
116*b077aed3SPierre ProncheryThe I<tm_sec>, I<tm_min>, I<tm_hour>, I<tm_mday>, I<tm_wday>, I<tm_yday>,
117*b077aed3SPierre ProncheryI<tm_mon> and I<tm_year> fields of I<tm> structure are set to proper values,
118*b077aed3SPierre Proncherywhereas all other fields are set to 0. If I<tm> is NULL this function performs
119*b077aed3SPierre Proncherya format check on I<s> only. If I<s> is in Generalized format with fractional
120*b077aed3SPierre Proncheryseconds, e.g. YYYYMMDDHHMMSS.SSSZ, the fractional seconds will be lost while
121*b077aed3SPierre Proncheryconverting I<s> to I<tm> structure.
122*b077aed3SPierre Pronchery
123*b077aed3SPierre ProncheryASN1_TIME_diff() sets I<*pday> and I<*psec> to the time difference between
124*b077aed3SPierre ProncheryI<from> and I<to>. If I<to> represents a time later than I<from> then
125*b077aed3SPierre Proncheryone or both (depending on the time difference) of I<*pday> and I<*psec>
126*b077aed3SPierre Proncherywill be positive. If I<to> represents a time earlier than I<from> then
127*b077aed3SPierre Proncheryone or both of I<*pday> and I<*psec> will be negative. If I<to> and I<from>
128*b077aed3SPierre Proncheryrepresent the same time then I<*pday> and I<*psec> will both be zero.
129*b077aed3SPierre ProncheryIf both I<*pday> and I<*psec> are nonzero they will always have the same
130*b077aed3SPierre Proncherysign. The value of I<*psec> will always be less than the number of seconds
131*b077aed3SPierre Proncheryin a day. If I<from> or I<to> is NULL the current time is used.
132e71b7053SJung-uk Kim
133e71b7053SJung-uk KimThe ASN1_TIME_cmp_time_t() and ASN1_UTCTIME_cmp_time_t() functions compare
134*b077aed3SPierre Proncherythe two times represented by the time structure I<s> and the time_t I<t>.
135e71b7053SJung-uk Kim
136e71b7053SJung-uk KimThe ASN1_TIME_compare() function compares the two times represented by the
137*b077aed3SPierre Proncherytime structures I<a> and I<b>.
138e71b7053SJung-uk Kim
139*b077aed3SPierre ProncheryThe ASN1_TIME_to_generalizedtime() function converts an B<ASN1_TIME> to an
140*b077aed3SPierre ProncheryB<ASN1_GENERALIZEDTIME>, regardless of year. If either I<out> or
141*b077aed3SPierre ProncheryI<*out> are NULL, then a new object is allocated and must be freed after use.
142*b077aed3SPierre Pronchery
143*b077aed3SPierre ProncheryThe ASN1_TIME_dup(), ASN1_UTCTIME_dup() and ASN1_GENERALIZEDTIME_dup() functions
144*b077aed3SPierre Proncheryduplicate the time structure I<t> and return the duplicated result
145*b077aed3SPierre Proncherycorrespondingly.
146e71b7053SJung-uk Kim
147e71b7053SJung-uk Kim=head1 NOTES
148e71b7053SJung-uk Kim
149*b077aed3SPierre ProncheryThe B<ASN1_TIME> structure corresponds to the ASN.1 structure B<Time>
150e71b7053SJung-uk Kimdefined in RFC5280 et al. The time setting functions obey the rules outlined
151e71b7053SJung-uk Kimin RFC5280: if the date can be represented by UTCTime it is used, else
152e71b7053SJung-uk KimGeneralizedTime is used.
153e71b7053SJung-uk Kim
154*b077aed3SPierre ProncheryThe B<ASN1_TIME>, B<ASN1_UTCTIME> and B<ASN1_GENERALIZEDTIME> structures are
155*b077aed3SPierre Proncheryrepresented as an B<ASN1_STRING> internally and can be freed up using
156*b077aed3SPierre ProncheryASN1_STRING_free().
157e71b7053SJung-uk Kim
158*b077aed3SPierre ProncheryThe B<ASN1_TIME> structure can represent years from 0000 to 9999 but no attempt
159e71b7053SJung-uk Kimis made to correct ancient calendar changes (for example from Julian to
160e71b7053SJung-uk KimGregorian calendars).
161e71b7053SJung-uk Kim
162*b077aed3SPierre ProncheryB<ASN1_UTCTIME> is limited to a year range of 1950 through 2049.
163e71b7053SJung-uk Kim
164e71b7053SJung-uk KimSome applications add offset times directly to a time_t value and pass the
165e71b7053SJung-uk Kimresults to ASN1_TIME_set() (or equivalent). This can cause problems as the
166e71b7053SJung-uk Kimtime_t value can overflow on some systems resulting in unexpected results.
167e71b7053SJung-uk KimNew applications should use ASN1_TIME_adj() instead and pass the offset value
168*b077aed3SPierre Proncheryin the I<offset_sec> and I<offset_day> parameters instead of directly
169e71b7053SJung-uk Kimmanipulating a time_t value.
170e71b7053SJung-uk Kim
171*b077aed3SPierre ProncheryASN1_TIME_adj() may change the type from B<ASN1_GENERALIZEDTIME> to
172*b077aed3SPierre ProncheryB<ASN1_UTCTIME>, or vice versa, based on the resulting year.
173*b077aed3SPierre ProncheryASN1_GENERALIZEDTIME_adj() and ASN1_UTCTIME_adj() will not modify the type
174*b077aed3SPierre Proncheryof the return structure.
175e71b7053SJung-uk Kim
176*b077aed3SPierre ProncheryIt is recommended that functions starting with B<ASN1_TIME> be used instead of
177*b077aed3SPierre Proncherythose starting with B<ASN1_UTCTIME> or B<ASN1_GENERALIZEDTIME>. The functions
178*b077aed3SPierre Proncherystarting with B<ASN1_UTCTIME> and B<ASN1_GENERALIZEDTIME> act only on that
179*b077aed3SPierre Proncheryspecific time format. The functions starting with B<ASN1_TIME> will operate on
180*b077aed3SPierre Proncheryeither format.
181e71b7053SJung-uk Kim
182e71b7053SJung-uk Kim=head1 BUGS
183e71b7053SJung-uk Kim
184*b077aed3SPierre ProncheryASN1_TIME_print(), ASN1_UTCTIME_print() and ASN1_GENERALIZEDTIME_print() do
185*b077aed3SPierre Proncherynot print out the timezone: it either prints out "GMT" or nothing. But all
186e71b7053SJung-uk Kimcertificates complying with RFC5280 et al use GMT anyway.
187e71b7053SJung-uk Kim
188*b077aed3SPierre ProncheryASN1_TIME_print(), ASN1_TIME_print_ex(), ASN1_UTCTIME_print() and
189*b077aed3SPierre ProncheryASN1_GENERALIZEDTIME_print() do not distinguish if they fail because
190*b077aed3SPierre Proncheryof an I/O error or invalid time format.
191*b077aed3SPierre Pronchery
192e71b7053SJung-uk KimUse the ASN1_TIME_normalize() function to normalize the time value before
193e71b7053SJung-uk Kimprinting to get GMT results.
194e71b7053SJung-uk Kim
195e71b7053SJung-uk Kim=head1 RETURN VALUES
196e71b7053SJung-uk Kim
197*b077aed3SPierre ProncheryASN1_TIME_set(), ASN1_UTCTIME_set(), ASN1_GENERALIZEDTIME_set(),
198*b077aed3SPierre ProncheryASN1_TIME_adj(), ASN1_UTCTIME_adj() and ASN1_GENERALIZEDTIME_set() return
199*b077aed3SPierre Proncherya pointer to a time structure or NULL if an error occurred.
200e71b7053SJung-uk Kim
201*b077aed3SPierre ProncheryASN1_TIME_set_string(), ASN1_UTCTIME_set_string(),
202*b077aed3SPierre ProncheryASN1_GENERALIZEDTIME_set_string() and ASN1_TIME_set_string_X509() return
203*b077aed3SPierre Pronchery1 if the time value is successfully set and 0 otherwise.
204e71b7053SJung-uk Kim
205e71b7053SJung-uk KimASN1_TIME_normalize() returns 1 on success, and 0 on error.
206e71b7053SJung-uk Kim
207e71b7053SJung-uk KimASN1_TIME_check(), ASN1_UTCTIME_check and ASN1_GENERALIZEDTIME_check() return 1
208e71b7053SJung-uk Kimif the structure is syntactically correct and 0 otherwise.
209e71b7053SJung-uk Kim
210*b077aed3SPierre ProncheryASN1_TIME_print(), ASN1_UTCTIME_print() and ASN1_GENERALIZEDTIME_print()
211*b077aed3SPierre Proncheryreturn 1 if the time is successfully printed out and
212*b077aed3SPierre Pronchery0 if an I/O error occurred an error occurred (I/O error or invalid time format).
213e71b7053SJung-uk Kim
214e71b7053SJung-uk KimASN1_TIME_to_tm() returns 1 if the time is successfully parsed and 0 if an
215e71b7053SJung-uk Kimerror occurred (invalid time format).
216e71b7053SJung-uk Kim
217e71b7053SJung-uk KimASN1_TIME_diff() returns 1 for success and 0 for failure. It can fail if the
218e71b7053SJung-uk Kimpassed-in time structure has invalid syntax, for example.
219e71b7053SJung-uk Kim
220*b077aed3SPierre ProncheryASN1_TIME_cmp_time_t() and ASN1_UTCTIME_cmp_time_t() return -1 if I<s> is
221*b077aed3SPierre Proncherybefore I<t>, 0 if I<s> equals I<t>, or 1 if I<s> is after I<t>. -2 is returned
222e71b7053SJung-uk Kimon error.
223e71b7053SJung-uk Kim
224*b077aed3SPierre ProncheryASN1_TIME_compare() returns -1 if I<a> is before I<b>, 0 if I<a> equals I<b>,
225*b077aed3SPierre Proncheryor 1 if I<a> is after I<b>. -2 is returned on error.
226e71b7053SJung-uk Kim
227*b077aed3SPierre ProncheryASN1_TIME_to_generalizedtime() returns a pointer to the appropriate time
228*b077aed3SPierre Proncherystructure on success or NULL if an error occurred.
229*b077aed3SPierre Pronchery
230*b077aed3SPierre ProncheryASN1_TIME_dup(), ASN1_UTCTIME_dup() and ASN1_GENERALIZEDTIME_dup() return a
231*b077aed3SPierre Proncherypointer to a time structure or NULL if an error occurred.
232e71b7053SJung-uk Kim
233610a21fdSJung-uk Kim=head1 EXAMPLES
234610a21fdSJung-uk Kim
235610a21fdSJung-uk KimSet a time structure to one hour after the current time and print it out:
236610a21fdSJung-uk Kim
237610a21fdSJung-uk Kim #include <time.h>
238610a21fdSJung-uk Kim #include <openssl/asn1.h>
239610a21fdSJung-uk Kim
240610a21fdSJung-uk Kim ASN1_TIME *tm;
241610a21fdSJung-uk Kim time_t t;
242610a21fdSJung-uk Kim BIO *b;
243610a21fdSJung-uk Kim
244610a21fdSJung-uk Kim t = time(NULL);
245610a21fdSJung-uk Kim tm = ASN1_TIME_adj(NULL, t, 0, 60 * 60);
246610a21fdSJung-uk Kim b = BIO_new_fp(stdout, BIO_NOCLOSE);
247610a21fdSJung-uk Kim ASN1_TIME_print(b, tm);
248610a21fdSJung-uk Kim ASN1_STRING_free(tm);
249610a21fdSJung-uk Kim BIO_free(b);
250610a21fdSJung-uk Kim
251610a21fdSJung-uk KimDetermine if one time is later or sooner than the current time:
252610a21fdSJung-uk Kim
253610a21fdSJung-uk Kim int day, sec;
254610a21fdSJung-uk Kim
255610a21fdSJung-uk Kim if (!ASN1_TIME_diff(&day, &sec, NULL, to))
256610a21fdSJung-uk Kim     /* Invalid time format */
257610a21fdSJung-uk Kim
258610a21fdSJung-uk Kim if (day > 0 || sec > 0)
259610a21fdSJung-uk Kim     printf("Later\n");
260610a21fdSJung-uk Kim else if (day < 0 || sec < 0)
261610a21fdSJung-uk Kim     printf("Sooner\n");
262610a21fdSJung-uk Kim else
263610a21fdSJung-uk Kim     printf("Same\n");
264610a21fdSJung-uk Kim
265e71b7053SJung-uk Kim=head1 HISTORY
266e71b7053SJung-uk Kim
267e71b7053SJung-uk KimThe ASN1_TIME_to_tm() function was added in OpenSSL 1.1.1.
268e71b7053SJung-uk KimThe ASN1_TIME_set_string_X509() function was added in OpenSSL 1.1.1.
269e71b7053SJung-uk KimThe ASN1_TIME_normalize() function was added in OpenSSL 1.1.1.
270e71b7053SJung-uk KimThe ASN1_TIME_cmp_time_t() function was added in OpenSSL 1.1.1.
271e71b7053SJung-uk KimThe ASN1_TIME_compare() function was added in OpenSSL 1.1.1.
272e71b7053SJung-uk Kim
273e71b7053SJung-uk Kim=head1 COPYRIGHT
274e71b7053SJung-uk Kim
275*b077aed3SPierre ProncheryCopyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
276e71b7053SJung-uk Kim
277*b077aed3SPierre ProncheryLicensed under the Apache License 2.0 (the "License").  You may not use
278e71b7053SJung-uk Kimthis file except in compliance with the License.  You can obtain a copy
279e71b7053SJung-uk Kimin the file LICENSE in the source distribution or at
280e71b7053SJung-uk KimL<https://www.openssl.org/source/license.html>.
281e71b7053SJung-uk Kim
282e71b7053SJung-uk Kim=cut
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