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=head1 NAME

CMS_final - finalise a CMS_ContentInfo structure

=head1 SYNOPSIS

 #include <openssl/cms.h>

 int CMS_final(CMS_ContentInfo *cms, BIO *data, BIO *dcont, unsigned int flags);

=head1 DESCRIPTION

CMS_final() finalises the structure B<cms>. Its purpose is to perform any
operations necessary on B<cms> (digest computation for example) and set the
appropriate fields. The parameter B<data> contains the content to be
processed. The B<dcont> parameter contains a BIO to write content to after
processing: this is only used with detached data and will usually be set to
NULL.

=head1 NOTES

This function will normally be called when the B<CMS_PARTIAL> flag is used. It
should only be used when streaming is not performed because the streaming
I/O functions perform finalisation operations internally.

=head1 RETURN VALUES

CMS_final() returns 1 for success or 0 for failure.

=head1 SEE ALSO

L<ERR_get_error(3)>, L<CMS_sign(3)>,
L<CMS_encrypt(3)>

=head1 COPYRIGHT

Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.

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