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.\" $OpenBSD: d2i_X509_CRL.3,v 1.8 2021/10/30 16:20:35 schwarze Exp $
.\"
.\" Copyright (c) 2016, 2021 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: October 30 2021 $
.Dt D2I_X509_CRL 3
.Os
.Sh NAME
.Nm d2i_X509_CRL ,
.Nm i2d_X509_CRL ,
.Nm d2i_X509_CRL_bio ,
.Nm d2i_X509_CRL_fp ,
.Nm i2d_X509_CRL_bio ,
.Nm i2d_X509_CRL_fp ,
.Nm d2i_X509_CRL_INFO ,
.Nm i2d_X509_CRL_INFO ,
.Nm d2i_X509_REVOKED ,
.Nm i2d_X509_REVOKED
.Nd decode and encode X.509 certificate revocation lists
.Sh SYNOPSIS
.In openssl/x509.h
.Ft X509_CRL *
.Fo d2i_X509_CRL
.Fa "X509_CRL **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_X509_CRL
.Fa "X509_CRL *val_in"
.Fa "unsigned char **der_out"
.Fc
.Ft X509_CRL *
.Fo d2i_X509_CRL_bio
.Fa "BIO *in_bio"
.Fa "X509_CRL **der_out"
.Fc
.Ft X509_CRL *
.Fo d2i_X509_CRL_fp
.Fa "FILE *in_fp"
.Fa "X509_CRL **der_out"
.Fc
.Ft int
.Fo i2d_X509_CRL_bio
.Fa "BIO *out_bio"
.Fa "X509_CRL *der_in"
.Fc
.Ft int
.Fo i2d_X509_CRL_fp
.Fa "FILE *out_fp"
.Fa "X509_CRL *der_in"
.Fc
.Ft X509_CRL_INFO *
.Fo d2i_X509_CRL_INFO
.Fa "X509_CRL_INFO **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_X509_CRL_INFO
.Fa "X509_CRL_INFO *val_in"
.Fa "unsigned char **der_out"
.Fc
.Ft X509_REVOKED *
.Fo d2i_X509_REVOKED
.Fa "X509_REVOKED **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_X509_REVOKED
.Fa "X509_REVOKED *val_in"
.Fa "unsigned char **der_out"
.Fc
.Sh DESCRIPTION
These functions decode and encode X.509 certificate revocation lists.
For details about the semantics, examples, caveats, and bugs, see
.Xr ASN1_item_d2i 3 .
.Pp
.Fn d2i_X509_CRL
and
.Fn i2d_X509_CRL
decode and encode an ASN.1
.Vt CertificateList
structure defined in RFC 5280 section 5.1.
.Pp
If
.Xr X509_CRL_set_default_method 3
is in effect and the
.Fn crl_init
callback is not
.Dv NULL ,
that callback is invoked at the end of
.Fn d2i_X509_CRL .
.Pp
.Fn d2i_X509_CRL_bio ,
.Fn d2i_X509_CRL_fp ,
.Fn i2d_X509_CRL_bio ,
and
.Fn i2d_X509_CRL_fp
are similar except that they decode or encode using a
.Vt BIO
or
.Vt FILE
pointer.
.Pp
.Fn d2i_X509_CRL_INFO
and
.Fn i2d_X509_CRL_INFO
decode and encode an ASN.1
.Vt TBSCertList
structure defined in RFC 5280 section 5.1.
.Pp
.Fn d2i_X509_REVOKED
and
.Fn i2d_X509_REVOKED
decode and encode an ASN.1 structure representing one element of
the revokedCertificates field of the ASN.1
.Vt TBSCertList
structure.
.Sh SEE ALSO
.Xr ASN1_item_d2i 3 ,
.Xr X509_CRL_METHOD_new 3 ,
.Xr X509_CRL_new 3 ,
.Xr X509_REVOKED_new 3
.Sh STANDARDS
RFC 5280: Internet X.509 Public Key Infrastructure Certificate and
Certificate Revocation List (CRL) Profile,
section 5: CRL and CRL Extensions Profile
.Sh HISTORY
.Fn d2i_X509_CRL ,
.Fn i2d_X509_CRL ,
.Fn d2i_X509_CRL_fp ,
.Fn i2d_X509_CRL_fp ,
.Fn d2i_X509_CRL_INFO ,
.Fn i2d_X509_CRL_INFO ,
.Fn d2i_X509_REVOKED ,
and
.Fn i2d_X509_REVOKED
first appeared in SSLeay 0.5.1.
.Fn d2i_X509_CRL_bio
and
.Fn i2d_X509_CRL_bio
first appeared in SSLeay 0.6.0.
These functions have been available since
.Ox 2.4 .
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