NAME

       libssh2_session_method_pref - set preferred key exchange method

SYNOPSIS

       #include <libssh2.h>

       int
       libssh2_session_method_pref(LIBSSH2_SESSION *session,
                                   int method_type, const char *prefs);

DESCRIPTION

       session - Session instance as returned by libssh2_session_init_ex(3)

       method_type - One of the Method Type constants.

       prefs  -  Coma  delimited  list of preferred methods to use with the most preferred listed
       first and the least preferred listed last.  If a method is listed which is  not  supported
       by libssh2 it will be ignored and not sent to the remote host during protocol negotiation.

       Set  preferred  methods  to  be negotiated. These preferences must be set prior to calling
       libssh2_session_handshake(3) as they are used during the protocol initiation phase.

RETURN VALUE

       Return 0 on success or negative on failure.  It returns LIBSSH2_ERROR_EAGAIN when it would
       otherwise  block.  While  LIBSSH2_ERROR_EAGAIN  is  a  negative number, it is not really a
       failure per se.

ERRORS

       LIBSSH2_ERROR_INVAL - The requested method type was invalid.

       LIBSSH2_ERROR_ALLOC -  An internal memory allocation call failed.

       LIBSSH2_ERROR_METHOD_NOT_SUPPORTED - The requested method is not supported.

SEE ALSO

       libssh2_session_init_ex(3) libssh2_session_handshake(3)