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.\" $OpenBSD: d2i_DIST_POINT.3,v 1.4 2018/03/23 04:34:23 schwarze Exp $
.\"
.\" Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: March 23 2018 $
.Dt D2I_DIST_POINT 3
.Os
.Sh NAME
.Nm d2i_DIST_POINT ,
.Nm i2d_DIST_POINT ,
.Nm d2i_CRL_DIST_POINTS ,
.Nm i2d_CRL_DIST_POINTS ,
.Nm d2i_DIST_POINT_NAME ,
.Nm i2d_DIST_POINT_NAME ,
.Nm d2i_ISSUING_DIST_POINT ,
.Nm i2d_ISSUING_DIST_POINT ,
.Nm d2i_ACCESS_DESCRIPTION ,
.Nm i2d_ACCESS_DESCRIPTION ,
.Nm d2i_AUTHORITY_INFO_ACCESS ,
.Nm i2d_AUTHORITY_INFO_ACCESS
.Nd decode and encode X.509 data access extensions
.Sh SYNOPSIS
.In openssl/x509v3.h
.Ft DIST_POINT *
.Fo d2i_DIST_POINT
.Fa "DIST_POINT_NAME **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_DIST_POINT
.Fa "DIST_POINT *val_in"
.Fa "unsigned char **der_out"
.Fc
.Ft CRL_DIST_POINTS *
.Fo d2i_CRL_DIST_POINTS
.Fa "CRL_DIST_POINTS_NAME **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_CRL_DIST_POINTS
.Fa "CRL_DIST_POINTS *val_in"
.Fa "unsigned char **der_out"
.Fc
.Ft DIST_POINT_NAME *
.Fo d2i_DIST_POINT_NAME
.Fa "DIST_POINT_NAME_NAME **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_DIST_POINT_NAME
.Fa "DIST_POINT_NAME *val_in"
.Fa "unsigned char **der_out"
.Fc
.Ft ISSUING_DIST_POINT *
.Fo d2i_ISSUING_DIST_POINT
.Fa "ISSUING_DIST_POINT_NAME **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_ISSUING_DIST_POINT
.Fa "ISSUING_DIST_POINT *val_in"
.Fa "unsigned char **der_out"
.Fc
.Ft ACCESS_DESCRIPTION *
.Fo d2i_ACCESS_DESCRIPTION
.Fa "ACCESS_DESCRIPTION_NAME **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_ACCESS_DESCRIPTION
.Fa "ACCESS_DESCRIPTION *val_in"
.Fa "unsigned char **der_out"
.Fc
.Ft AUTHORITY_INFO_ACCESS *
.Fo d2i_AUTHORITY_INFO_ACCESS
.Fa "AUTHORITY_INFO_ACCESS_NAME **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_AUTHORITY_INFO_ACCESS
.Fa "AUTHORITY_INFO_ACCESS *val_in"
.Fa "unsigned char **der_out"
.Fc
.Sh DESCRIPTION
These functions decode and encode X.509 extensions that communicate
where to retrieve additional information online.
For details about the semantics, examples, caveats, and bugs, see
.Xr ASN1_item_d2i 3 .
.Pp
.Fn d2i_DIST_POINT
and
.Fn i2d_DIST_POINT
decode and encode an ASN.1
.Vt DistributionPoint
structure defined in RFC 5280 section 4.2.1.13.
.Pp
.Fn d2i_CRL_DIST_POINTS
and
.Fn i2d_CRL_DIST_POINTS
decode and encode an ASN.1
.Vt CRLDistributionPoints
structure defined in RFC 5280 section 4.2.1.13.
.Pp
.Fn d2i_DIST_POINT_NAME
and
.Fn i2d_DIST_POINT_NAME
decode and encode an ASN.1
.Vt DistributionPointName
structure defined in RFC 5280 section 4.2.1.13.
.Pp
.Fn d2i_ISSUING_DIST_POINT
and
.Fn i2d_ISSUING_DIST_POINT
decode and encode an ASN.1
.Vt IssuingDistributionPoint
structure defined in RFC 5280 section 5.2.5.
.Pp
.Fn d2i_ACCESS_DESCRIPTION
and
.Fn i2d_ACCESS_DESCRIPTION
decode and encode an ASN.1
.Vt AccessDescription
structure defined in RFC 5280 section 4.2.2.1.
.Pp
.Fn d2i_AUTHORITY_INFO_ACCESS
and
.Fn i2d_AUTHORITY_INFO_ACCESS
decode and encode an ASN.1
.Vt AuthorityInfoAccessSyntax
structure defined in RFC 5280 section 4.2.2.1.
.Sh RETURN VALUES
.Fn d2i_DIST_POINT ,
.Fn d2i_CRL_DIST_POINTS ,
.Fn d2i_DIST_POINT_NAME ,
.Fn d2i_ISSUING_DIST_POINT ,
.Fn d2i_ACCESS_DESCRIPTION ,
and
.Fn d2i_AUTHORITY_INFO_ACCESS
return an object of the respective type or
.Dv NULL
if an error occurs.
.Pp
.Fn i2d_DIST_POINT ,
.Fn i2d_CRL_DIST_POINTS ,
.Fn i2d_DIST_POINT_NAME ,
.Fn i2d_ISSUING_DIST_POINT ,
.Fn i2d_ACCESS_DESCRIPTION ,
and
.Fn i2d_AUTHORITY_INFO_ACCESS
return the number of bytes successfully encoded or a negative value
if an error occurs.
.Sh SEE ALSO
.Xr ACCESS_DESCRIPTION_new 3 ,
.Xr ASN1_item_d2i 3 ,
.Xr DIST_POINT_new 3 ,
.Xr X509_EXTENSION_new 3
.Sh STANDARDS
RFC 5280: Internet X.509 Public Key Infrastructure Certificate and
Certificate Revocation List (CRL) Profile
.Sh HISTORY
.Fn d2i_DIST_POINT ,
.Fn i2d_DIST_POINT ,
.Fn d2i_CRL_DIST_POINTS ,
.Fn i2d_CRL_DIST_POINTS ,
.Fn d2i_DIST_POINT_NAME ,
and
.Fn i2d_DIST_POINT_NAME
first appeared in OpenSSL 0.9.3 and have been available since
.Ox 2.6 .
.Pp
.Fn d2i_ACCESS_DESCRIPTION ,
.Fn i2d_ACCESS_DESCRIPTION ,
.Fn d2i_AUTHORITY_INFO_ACCESS ,
and
.Fn i2d_AUTHORITY_INFO_ACCESS
first appeared in OpenSSL 0.9.5 and have been available since
.Ox 2.7 .
.Pp
.Fn d2i_ISSUING_DIST_POINT
and
.Fn i2d_ISSUING_DIST_POINT
first appeared in OpenSSL 1.0.0 and have been available since
.Ox 4.9 .
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