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SSL_GET_FD(3) Library Functions Manual SSL_GET_FD(3)

NAME

SSL_get_fd, SSL_get_rfd, SSL_get_wfdget 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

BIO_new(3), ssl(3), SSL_set_fd(3)
December 6, 2016 OpenBSD-current