1X509_CMP_TIME(3)                    OpenSSL                   X509_CMP_TIME(3)
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NAME

6       X509_cmp_time, X509_cmp_current_time, X509_time_adj, X509_time_adj_ex -
7       X509 time functions
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SYNOPSIS

10        int X509_cmp_time(const ASN1_TIME *asn1_time, time_t *in_tm);
11        int X509_cmp_current_time(const ASN1_TIME *asn1_time);
12        ASN1_TIME *X509_time_adj(ASN1_TIME *asn1_time, long offset_sec, time_t *in_tm);
13        ASN1_TIME *X509_time_adj_ex(ASN1_TIME *asn1_time, int offset_day, long
14                                    offset_sec, time_t *in_tm);
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DESCRIPTION

17       X509_cmp_time() compares the ASN1_TIME in asn1_time with the time in
18       <cmp_time>. X509_cmp_current_time() compares the ASN1_TIME in asn1_time
19       with the current time, expressed as time_t. asn1_time must satisfy the
20       ASN1_TIME format mandated by RFC 5280, i.e., its format must be either
21       YYMMDDHHMMSSZ or YYYYMMDDHHMMSSZ.
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23       X509_time_adj_ex() sets the ASN1_TIME structure asn1_time to the time
24       offset_day and offset_sec after in_tm.
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26       X509_time_adj() sets the ASN1_TIME structure asn1_time to the time
27       offset_sec after in_tm. This method can only handle second offsets up
28       to the capacity of long, so the newer X509_time_adj_ex() API should be
29       preferred.
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31       In both methods, if asn1_time is NULL, a new ASN1_TIME structure is
32       allocated and returned.
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34       In all methods, if in_tm is NULL, the current time, expressed as
35       time_t, is used.
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BUGS

38       Unlike many standard comparison functions, X509_cmp_time() and
39       X509_cmp_current_time() return 0 on error.
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RETURN VALUES

42       X509_cmp_time() and X509_cmp_current_time() return -1 if asn1_time is
43       earlier than, or equal to, cmp_time (resp. current time), and 1
44       otherwise. These methods return 0 on error.
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46       X509_time_adj() and X509_time_adj_ex() return a pointer to the updated
47       ASN1_TIME structure, and NULL on error.
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50       Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
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52       Licensed under the OpenSSL license (the "License").  You may not use
53       this file except in compliance with the License.  You can obtain a copy
54       in the file LICENSE in the source distribution or at
55       <https://www.openssl.org/source/license.html>.
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591.1.1i                            2021-01-26                  X509_CMP_TIME(3)
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