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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 2008-2019 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (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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