openssl/doc/man3/OSSL_ENCODER_to_bio.pod
Richard Levitte b8975c68b1 ENCODER: Refactor the OSSL_ENCODER API to be more like OSSL_DECODER
OSSL_ENCODER was developed before OSSL_DECODER, so the idea of
chaining and the resulting API came later.  This series of changes
brings the same sort of API and functionality back to OSSL_ENCODER,
making the two APIs more consistent with each other.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12873)
2020-09-20 17:31:22 +02:00

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=pod
=head1 NAME
OSSL_ENCODER_to_bio,
OSSL_ENCODER_to_fp
- Routines to perform an encoding
=head1 SYNOPSIS
#include <openssl/encoder.h>
int OSSL_ENCODER_to_bio(OSSL_ENCODER_CTX *ctx, BIO *out);
int OSSL_ENCODER_to_fp(OSSL_ENCODER_CTX *ctx, FILE *fp);
Feature availability macros:
=over 4
=item OSSL_ENCODER_to_fp() is only available when B<OPENSSL_NO_STDIO>
is undefined.
=back
=head1 DESCRIPTION
OSSL_ENCODER_to_bio() runs the encoding process for the context I<ctx>, with
the output going to the B<BIO> I<out>. The application is required to set
up the B<BIO> properly, for example to have it in text or binary mode if
that's appropriate.
=for comment Know your encoder!
OSSL_ENCODER_to_fp() does the same thing as OSSL_ENCODER_to_bio(),
except that the output is going to the B<FILE> I<fp>.
=head1 RETURN VALUES
OSSL_ENCODER_to_bio() and OSSL_ENCODER_to_fp() return 1 on success, or 0 on
failure.
=begin comment TODO(3.0) Add examples!
=head1 EXAMPLES
Text, because pod2xxx doesn't like empty sections
=end comment
=head1 SEE ALSO
L<provider(7)>, L<OSSL_ENCODER_CTX(3)>
=head1 HISTORY
The functions described here were added in OpenSSL 3.0.
=head1 COPYRIGHT
Copyright 2019-2020 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>.
=cut