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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 preferrences must be set
       prior to calling libssh2_session_startup(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 isn’t 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_startup(3)