SSL_get_fd(3)SSL_get_fd(3)NAMESSL_get_fd - Get file descriptor linked to an SSL object
SYNOPSIS
#include <openssl/ssl.h>
int SSL_get_fd(
SSL *ssl ); int SSL_get_rfd(
SSL *ssl ); int SSL_get_wfd(
SSL *ssl );
DESCRIPTION
The SSL_get_fd() function returns the file descriptor which is linked
to ssl. The SSL_get_rfd() and SSL_get_wfd() functions return the file
descriptors for the read or the write channel, which can be different.
If the read and the write channel are different, the SSL_get_fd() func‐
tion will return the file descriptor of the read channel.
RETURN VALUES
The following return values can occur: The operation failed, because
the underlying BIO is not of the correct type (suitable for file
descriptors). The file descriptor linked to ssl.
SEE ALSO
Functions: SSL_set_fd(3), ssl(3) , bio(3)SSL_get_fd(3)