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.\" $OpenBSD: d2i_CMS_ContentInfo.3,v 1.1 2019/08/12 14:24:38 schwarze Exp $
.\" Copyright (c) 2019 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: August 12 2019 $
.Dt D2I_CMS_CONTENTINFO 3
.Os
.Sh NAME
.Nm d2i_CMS_ContentInfo ,
.Nm i2d_CMS_ContentInfo ,
.Nm d2i_CMS_bio ,
.Nm i2d_CMS_bio ,
.Nm d2i_CMS_ReceiptRequest ,
.Nm i2d_CMS_ReceiptRequest
.Nd decode and encode Cryptographic Message Syntax data
.Sh SYNOPSIS
.In openssl/cms.h
.Ft CMS_ContentInfo *
.Fo d2i_CMS_ContentInfo
.Fa "CMS_ContentInfo **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_CMS_ContentInfo
.Fa "CMS_ContentInfo *val_in"
.Fa "unsigned char **out"
.Fc
.Ft CMS_ContentInfo *
.Fo d2i_CMS_bio
.Fa "BIO *in_bio"
.Fa "CMS_ContentInfo **val_out"
.Fc
.Ft int
.Fo i2d_CMS_bio
.Fa "BIO *out_bio"
.Fa "CMS_ContentInfo *val_in"
.Fc
.Ft CMS_ReceiptRequest *
.Fo d2i_CMS_ReceiptRequest
.Fa "CMS_ReceiptRequest **val_out"
.Fa "const unsigned char **der_in"
.Fa "long length"
.Fc
.Ft int
.Fo i2d_CMS_ReceiptRequest
.Fa "CMS_ReceiptRequest *val_in"
.Fa "unsigned char **out"
.Fc
.Sh DESCRIPTION
These functions decode and encode Cryptographic Message Syntax
data structures.
For details about the semantics, examples, caveats, and bugs, see
.Xr ASN1_item_d2i 3 .
.Pp
.Fn d2i_CMS_ContentInfo
and
.Fn i2d_CMS_ContentInfo
decode and encode a
.Vt CMS_ContentInfo
structure defined in RFC 5652 section 3.
.Fn d2i_CMS_bio
and
.Fn i2d_CMS_bio
are similar except that they decode or encode using a
.Vt BIO
pointer.
.Pp
.Fn d2i_CMS_ReceiptRequest
and
.Fn i2d_CMS_ReceiptRequest
decode and encode a
.Vt CMS_ReceiptRequest
structure defined in RFC 2634 section 2.7.
.Sh RETURN VALUES
.Fn d2i_CMS_ContentInfo
and
.Fn d2i_CMS_bio
return a valid
.Vt CMS_ContentInfo
structure or
.Dv NULL
if an error occurs.
.Pp
.Fn d2i_CMS_ReceiptRequest
returns a valid
.Vt CMS_ReceiptRequest
structure or
.Dv NULL
if an error occurs.
.Pp
.Fn i2d_CMS_ContentInfo
and
.Fn i2d_CMS_ReceiptRequest
return the number of bytes successfully encoded
or a negative value if an error occurs.
.Pp
.Fn i2d_CMS_bio
returns 1 for success or 0 if an error occurs.
.Pp
For all functions, the error code can be obtained by
.Xr ERR_get_error 3 .
.Sh SEE ALSO
.Xr ASN1_item_d2i 3 ,
.Xr CMS_ContentInfo_new 3 ,
.Xr i2d_CMS_bio_stream 3
.Sh STANDARDS
RFC 5652: Cryptographic Message Syntax, section 3: General Syntax
.Pp
RFC 2634: Enhanced Security Services for S/MIME,
section 2.7: Receipt Request Syntax
.Sh HISTORY
These functions first appeared in OpenSSL 0.9.8h
and have been available since
.Ox 6.6 .
|
