.\" $OpenBSD: X509_get0_notBefore.3,v 1.1 2018/02/15 10:01:33 schwarze Exp $
.\" content checked up to: OpenSSL 27b138e9 May 19 00:16:38 2017 +0000
.\"
.\" Copyright (c) 2018 Ingo Schwarze <schwarze@openbsd.org>
.\"
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.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.Dd $Mdocdate: February 15 2018 $
.Dt X509_GET0_NOTBEFORE 3
.Os
.Sh NAME
.Nm X509_get0_notBefore ,
.Nm X509_getm_notBefore ,
.Nm X509_get0_notAfter ,
.Nm X509_getm_notAfter
.Nd get certificate validity dates
.Sh SYNOPSIS
.In openssl/x509.h
.Ft const ASN1_TIME *
.Fo X509_get0_notBefore
.Fa "const X509 *x"
.Fc
.Ft const ASN1_TIME *
.Fo X509_get0_notAfter
.Fa "const X509 *x"
.Fc
.Ft ASN1_TIME *
.Fo X509_getm_notBefore
.Fa "const X509 *x"
.Fc
.Ft ASN1_TIME *
.Fo X509_getm_notAfter
.Fa "const X509 *x"
.Fc
.Sh DESCRIPTION
.Fn X509_getm_notBefore
and
.Fn X509_getm_notAfter
return pointers to the
.Fa notBefore
and
.Fa notAfter
fields of the validity period of the certificate
.Fa x ,
respectively.
.Pp
.Fn X509_get0_notBefore
and
.Fn X509_get0_notAfter
are identical except for the const qualifier on the return type.
.Sh RETURN VALUES
These functions return internal pointers which must not be freed
by the application, or
.Dv NULL
if the requested fields are not available.
.Sh SEE ALSO
.Xr ASN1_TIME_set 3 ,
.Xr ASN1_TIME_set_tm 3 ,
.Xr X509_cmp_time 3 ,
.Xr X509_get_subject_name 3 ,
.Xr X509_new 3 ,
.Xr X509_sign 3 ,
.Xr X509_VAL_new 3 ,
.Xr X509_verify_cert 3