1SSL_SET_FD(3)                       OpenSSL                      SSL_SET_FD(3)
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NAME

6       SSL_set_fd, SSL_set_rfd, SSL_set_wfd - connect the SSL object with a
7       file descriptor
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SYNOPSIS

10        #include <openssl/ssl.h>
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12        int SSL_set_fd(SSL *ssl, int fd);
13        int SSL_set_rfd(SSL *ssl, int fd);
14        int SSL_set_wfd(SSL *ssl, int fd);
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DESCRIPTION

17       SSL_set_fd() sets the file descriptor fd as the input/output facility
18       for the TLS/SSL (encrypted) side of ssl. fd will typically be the
19       socket file descriptor of a network connection.
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21       When performing the operation, a socket BIO is automatically created to
22       interface between the ssl and fd. The BIO and hence the SSL engine
23       inherit the behaviour of fd. If fd is non-blocking, the ssl will also
24       have non-blocking behaviour.
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26       If there was already a BIO connected to ssl, BIO_free() will be called
27       (for both the reading and writing side, if different).
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29       SSL_set_rfd() and SSL_set_wfd() perform the respective action, but only
30       for the read channel or the write channel, which can be set
31       independently.
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RETURN VALUES

34       The following return values can occur:
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36       0   The operation failed. Check the error stack to find out why.
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38       1   The operation succeeded.
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SEE ALSO

41       SSL_get_fd(3), SSL_set_bio(3), SSL_connect(3), SSL_accept(3),
42       SSL_shutdown(3), ssl(7) , bio(7)
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45       Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
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47       Licensed under the OpenSSL license (the "License").  You may not use
48       this file except in compliance with the License.  You can obtain a copy
49       in the file LICENSE in the source distribution or at
50       <https://www.openssl.org/source/license.html>.
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541.1.1g                            2020-04-23                     SSL_SET_FD(3)
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