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3 Help For Developers

The GnuTLS library is detected automatically at compile time. You should see that it’s enabled in the configure output. If not, follow the standard procedure for finding out why a system library is not picked up by the Emacs compilation. On the W32 (Windows) platform, installing the DLLs with a recent build should be enough.

Just use open-protocol-stream or open-network-stream (the two are equivalent, the first one being an alias to the second). You should not have to use the gnutls.el functions directly. But you can test them with open-gnutls-stream.

Function: open-gnutls-stream name buffer host service

This function creates a buffer connected to a specific host and service (port number or service name). The parameters and their syntax are the same as those given to open-network-stream (see Network Connections in The Emacs Lisp Reference Manual). The connection process is called name (made unique if necessary). This function returns the connection process.

;; open a HTTPS connection
(open-gnutls-stream "tls" "tls-buffer" "" "https")

;; open a IMAPS connection
(open-gnutls-stream "tls" "tls-buffer" "" "imaps")

The function gnutls-negotiate is not generally useful and it may change as needed, so please see gnutls.el for the details.

Function: gnutls-negotiate spec

Please see gnutls.el for the spec details and for usage, but do not rely on this function’s interface if possible.