1*2175Sjp161948=pod 2*2175Sjp161948 3*2175Sjp161948=head1 NAME 4*2175Sjp161948 5*2175Sjp161948SSL_get_fd - get file descriptor linked to an SSL object 6*2175Sjp161948 7*2175Sjp161948=head1 SYNOPSIS 8*2175Sjp161948 9*2175Sjp161948 #include <openssl/ssl.h> 10*2175Sjp161948 11*2175Sjp161948 int SSL_get_fd(const SSL *ssl); 12*2175Sjp161948 int SSL_get_rfd(const SSL *ssl); 13*2175Sjp161948 int SSL_get_wfd(const SSL *ssl); 14*2175Sjp161948 15*2175Sjp161948=head1 DESCRIPTION 16*2175Sjp161948 17*2175Sjp161948SSL_get_fd() returns the file descriptor which is linked to B<ssl>. 18*2175Sjp161948SSL_get_rfd() and SSL_get_wfd() return the file descriptors for the 19*2175Sjp161948read or the write channel, which can be different. If the read and the 20*2175Sjp161948write channel are different, SSL_get_fd() will return the file descriptor 21*2175Sjp161948of the read channel. 22*2175Sjp161948 23*2175Sjp161948=head1 RETURN VALUES 24*2175Sjp161948 25*2175Sjp161948The following return values can occur: 26*2175Sjp161948 27*2175Sjp161948=over 4 28*2175Sjp161948 29*2175Sjp161948=item -1 30*2175Sjp161948 31*2175Sjp161948The operation failed, because the underlying BIO is not of the correct type 32*2175Sjp161948(suitable for file descriptors). 33*2175Sjp161948 34*2175Sjp161948=item E<gt>=0 35*2175Sjp161948 36*2175Sjp161948The file descriptor linked to B<ssl>. 37*2175Sjp161948 38*2175Sjp161948=back 39*2175Sjp161948 40*2175Sjp161948=head1 SEE ALSO 41*2175Sjp161948 42*2175Sjp161948L<SSL_set_fd(3)|SSL_set_fd(3)>, L<ssl(3)|ssl(3)> , L<bio(3)|bio(3)> 43*2175Sjp161948 44*2175Sjp161948=cut 45