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BIO_f_null.3ssl

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.IX Title "BIO_f_null 3"
.TH BIO_f_null 3 "2019-12-20" "1.0.2u" "OpenSSL"
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.SH "NAME"
BIO_f_null \- null filter
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/bio.h>
\&
\& BIO_METHOD *   BIO_f_null(void);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBBIO_f_null()\fR returns the null filter \s-1BIO\s0 method. This is a filter \s-1BIO\s0
that does nothing.
.PP
All requests to a null filter \s-1BIO\s0 are passed through to the next \s-1BIO\s0 in
the chain: this means that a \s-1BIO\s0 chain containing a null filter \s-1BIO\s0
behaves just as though the \s-1BIO\s0 was not there.
.SH "NOTES"
.IX Header "NOTES"
As may be apparent a null filter \s-1BIO\s0 is not particularly useful.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBBIO_f_null()\fR returns the null filter \s-1BIO\s0 method.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\s-1TBA\s0

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