SSL_GET_FD - Online Linux Manual Page

Section : 3
Updated : 2021-03-26
Source : 1.1.1k
Note : OpenSSL
NAMESSL_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 VALUESThe 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 (7) , bio (7)
COPYRIGHTCopyright 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 LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>. 0
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