NAME¶
SSL_get_fd - 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)