SSL_get_wfd (3)

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NAME

SSL_get_fd, SSL_get_rfd, SSL_get_wfd - get file descriptor linked to an SSL object

SYNOPSIS

 #include <openssl/ssl.h>

 int SSL_get_fd(const SSL *ssl);
 int SSL_get_rfd(const SSL *ssl);
 int SSL_get_wfd(const SSL *ssl);

DESCRIPTION

SSL_get_fd() returns the file descriptor which is linked to ssl. SSL_get_rfd() and SSL_get_wfd() return the file descriptors for the read or the write channel, which can be different. If the read and the write channel are different, SSL_get_fd() will return the file descriptor of the read channel.

RETURN VALUES

The following return values can occur:

-1

The operation failed, because the underlying

BIO

is not of the correct type (suitable for file descriptors).

>=0

The file descriptor linked to ssl.

SEE ALSO

SSL_set_fd(3), ssl(3) , bio(3)

COPYRIGHT

Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the ``License''). You may not use this file except in compliance with the License. You can obtain a copy in the file

in the source distribution or at <www.openssl.org/source/license.html>.