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| Current File : //usr/src/crypto/openssl/doc/ssl/SSL_get_fd.pod |
=pod =head1 NAME SSL_get_fd - get file descriptor linked to an SSL object =head1 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); =head1 DESCRIPTION SSL_get_fd() returns the file descriptor which is linked to B<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. =head1 RETURN VALUES The following return values can occur: =over 4 =item -1 The operation failed, because the underlying BIO is not of the correct type (suitable for file descriptors). =item E<gt>=0 The file descriptor linked to B<ssl>. =back =head1 SEE ALSO L<SSL_set_fd(3)|SSL_set_fd(3)>, L<ssl(3)|ssl(3)> , L<bio(3)|bio(3)> =cut