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Hakase
2020-01-17 19:45:12 +09:00
parent 016df9f433
commit 0f7abb4eb6
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doc/man3/X509_cmp_time.pod
+28 -6
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@@ -2,13 +2,16 @@
=head1 NAME
X509_cmp_time, X509_cmp_current_time, X509_time_adj, X509_time_adj_ex
X509_cmp_time, X509_cmp_current_time, X509_cmp_timeframe,
X509_time_adj, X509_time_adj_ex
- X509 time functions
=head1 SYNOPSIS
int X509_cmp_time(const ASN1_TIME *asn1_time, time_t *in_tm);
int X509_cmp_current_time(const ASN1_TIME *asn1_time);
int X509_cmp_timeframe(const X509_VERIFY_PARAM *vpm,
const ASN1_TIME *start, const ASN1_TIME *end);
ASN1_TIME *X509_time_adj(ASN1_TIME *asn1_time, long offset_sec, time_t *in_tm);
ASN1_TIME *X509_time_adj_ex(ASN1_TIME *asn1_time, int offset_day, long
offset_sec, time_t *in_tm);
@@ -16,10 +19,14 @@ X509_cmp_time, X509_cmp_current_time, X509_time_adj, X509_time_adj_ex
=head1 DESCRIPTION
X509_cmp_time() compares the ASN1_TIME in B<asn1_time> with the time
in <cmp_time>. X509_cmp_current_time() compares the ASN1_TIME in
B<asn1_time> with the current time, expressed as time_t. B<asn1_time>
must satisfy the ASN1_TIME format mandated by RFC 5280, i.e., its
format must be either YYMMDDHHMMSSZ or YYYYMMDDHHMMSSZ.
in <in_tm>.
X509_cmp_current_time() compares the ASN1_TIME in
B<asn1_time> with the current time, expressed as time_t.
X509_cmp_timeframe() compares the given time period with the reference time
included in the verification parameters B<vpm> if they are not NULL and contain
B<X509_V_FLAG_USE_CHECK_TIME>; else the current time is used as reference time.
X509_time_adj_ex() sets the ASN1_TIME structure B<asn1_time> to the time
B<offset_day> and B<offset_sec> after B<in_tm>.
@@ -35,6 +42,9 @@ is allocated and returned.
In all methods, if B<in_tm> is NULL, the current time, expressed as
time_t, is used.
B<asn1_time> must satisfy the ASN1_TIME format mandated by RFC 5280,
i.e., its format must be either YYMMDDHHMMSSZ or YYYYMMDDHHMMSSZ.
=head1 BUGS
Unlike many standard comparison functions, X509_cmp_time() and
@@ -43,12 +53,24 @@ X509_cmp_current_time() return 0 on error.
=head1 RETURN VALUES
X509_cmp_time() and X509_cmp_current_time() return -1 if B<asn1_time>
is earlier than, or equal to, B<cmp_time> (resp. current time), and 1
is earlier than, or equal to, B<in_tm> (resp. current time), and 1
otherwise. These methods return 0 on error.
X509_cmp_timeframe() returns 0 if B<vpm> is not NULL and the verification
parameters do not contain B<X509_V_FLAG_USE_CHECK_TIME>
but do contain B<X509_V_FLAG_NO_CHECK_TIME>. Otherwise it returns
1 if the end time is not NULL and the reference time (which has determined as
stated above) is past the end time, -1 if the start time is not NULL and the
reference time is before, else 0 to indicate that the reference time is in range
(implying that the end time is not before the start time if both are present).
X509_time_adj() and X509_time_adj_ex() return a pointer to the updated
ASN1_TIME structure, and NULL on error.
=head1 HISTORY
X509_cmp_timeframe() was added in OpenSSL 3.0.
=head1 COPYRIGHT
Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.