.\" Automatically generated by Pod::Man 4.07 (Pod::Simple 3.32) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. 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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" SSL_set_bio, SSL_set0_rbio, SSL_set0_wbio \- connect the SSL object with a BIO .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include \& \& void SSL_set_bio(SSL *ssl, BIO *rbio, BIO *wbio); \& void SSL_set0_rbio(SSL *s, BIO *rbio); \& void SSL_set0_wbio(SSL *s, BIO *wbio); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fISSL_set0_rbio()\fR connects the \s-1BIO \s0\fBrbio\fR for the read operations of the \fBssl\fR object. The \s-1SSL\s0 engine inherits the behaviour of \fBrbio\fR. If the \s-1BIO\s0 is non-blocking then the \fBssl\fR object will also have non-blocking behaviour. This function transfers ownership of \fBrbio\fR to \fBssl\fR. It will be automatically freed using \fIBIO_free_all\fR\|(3) when the \fBssl\fR is freed. On calling this function, any existing \fBrbio\fR that was previously set will also be freed via a call to \fIBIO_free_all\fR\|(3) (this includes the case where the \fBrbio\fR is set to the same value as previously). .PP \&\fISSL_set0_wbio()\fR works in the same as \fISSL_set0_rbio()\fR except that it connects the \s-1BIO \s0\fBwbio\fR for the write operations of the \fBssl\fR object. Note that if the rbio and wbio are the same then \fISSL_set0_rbio()\fR and \fISSL_set0_wbio()\fR each take ownership of one reference. Therefore it may be necessary to increment the number of references available using \fIBIO_up_ref\fR\|(3) before calling the set0 functions. .PP \&\fISSL_set_bio()\fR does a similar job as \fISSL_set0_rbio()\fR and \fISSL_set0_wbio()\fR except that it connects both the \fBrbio\fR and the \fBwbio\fR at the same time. This function transfers the ownership of \fBrbio\fR and \fBwbio\fR to \fBssl\fR except that the rules for this are much more complex. For this reason this function is considered a legacy function and \fISSL_set0_rbio()\fR and \fISSL_set0_wbio()\fR should be used in preference. The ownership rules are as follows: .IP "\(bu" 2 If neither the rbio or wbio have changed from their previous values then nothing is done. .IP "\(bu" 2 If the rbio and wbio parameters are different and both are different to their previously set values then one reference is consumed for the rbio and one reference is consumed for the wbio. .IP "\(bu" 2 If the rbio and wbio parameters are the same and the rbio is not the same as the previously set value then one reference is consumed. .IP "\(bu" 2 If the rbio and wbio parameters are the same and the rbio is the same as the previously set value, then no additional references are consumed. .IP "\(bu" 2 If the rbio and wbio parameters are different and the rbio is the same as the previously set value then one reference is consumed for the wbio and no references are consumed for the rbio. .IP "\(bu" 2 If the rbio and wbio parameters are different and the wbio is the same as the previously set value and the old rbio and wbio values were the same as each other then one reference is consumed for the rbio and no references are consumed for the wbio. .IP "\(bu" 2 If the rbio and wbio parameters are different and the wbio is the same as the previously set value and the old rbio and wbio values were different to each other then one reference is consumed for the rbio and one reference is consumed for the wbio. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fISSL_set_bio()\fR, \fISSL_set_rbio()\fR and \fISSL_set_wbio()\fR cannot fail. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fISSL_get_rbio\fR\|(3), \&\fISSL_connect\fR\|(3), \fISSL_accept\fR\|(3), \&\fISSL_shutdown\fR\|(3), \fIssl\fR\|(7), \fIbio\fR\|(7) .SH "HISTORY" .IX Header "HISTORY" \&\fISSL_set0_rbio()\fR and \fISSL_set0_wbio()\fR were added in OpenSSL 1.1.0. .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2000\-2017 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at .