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71 lines
1.9 KiB
Plaintext
71 lines
1.9 KiB
Plaintext
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=pod
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=head1 NAME
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BIO_f_prefix, BIO_set_prefix, BIO_set_indent, BIO_get_indent
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- prefix BIO filter
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=head1 SYNOPSIS
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#include <openssl/bio.h>
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const BIO_METHOD *BIO_f_prefix(void);
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long BIO_set_prefix(BIO *b, const char *prefix);
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long BIO_set_indent(BIO *b, long indent);
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long BIO_get_indent(BIO *b);
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=head1 DESCRIPTION
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BIO_f_cipher() returns the prefix BIO method. This is a filter for
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text output, where each line gets automatically prefixed and indented
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according to user input.
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The prefix and the indentation are combined. For each line of output
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going through this filter, the prefix is output first, then the amount
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of additional spaces indicated by the indentation, and then the line
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itself.
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By default, there is no prefix, and indentation is set to 0.
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BIO_set_prefix() sets the prefix to be used for future lines of
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text, using I<prefix>. I<prefix> may be NULL, signifying that there
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should be no prefix. If I<prefix> isn't NULL, this function makes a
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copy of it.
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BIO_set_indent() sets the indentation to be used for future lines of
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text, using I<indent>. Negative values are not allowed.
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BIO_get_indent() gets the current indentation.
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=head1 NOTES
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BIO_set_prefix(), BIO_set_indent() and BIO_get_indent() are
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implemented as macros.
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=head1 RETURN VALUES
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BIO_f_prefix() returns the prefix BIO method.
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BIO_set_prefix() returns 1 if the prefix was correctly set, or <=0 on
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failure.
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BIO_set_indent() returns 1 if the prefix was correctly set, or <=0 on
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failure.
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BIO_get_indent() returns the current indentation, or a negative value for failure.
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=head1 SEE ALSO
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L<bio(7)>
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=head1 COPYRIGHT
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Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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