NAME

       nbd_set_request_structured_replies - control use of structured replies

SYNOPSIS

        #include <libnbd.h>

        int nbd_set_request_structured_replies (
              struct nbd_handle *h, bool request
            );

DESCRIPTION

       By default, libnbd tries to negotiate structured replies with the server, as this protocol
       extension must be in use before nbd_can_meta_context(3) or nbd_can_df(3) can return true.
       However, for integration testing, it can be useful to clear this flag rather than find a
       way to alter the server to fail the negotiation request.  It is also useful to set this to
       false prior to using nbd_set_opt_mode(3) if it is desired to control when to send
       nbd_opt_structured_reply(3) during negotiation.

RETURN VALUE

       If the call is successful the function returns 0.

ERRORS

       On error "-1" is returned.

       Refer to "ERROR HANDLING" in libnbd(3) for how to get further details of the error.

       The following parameters must not be NULL: "h".  For more information see "Non-NULL
       parameters" in libnbd(3).

HANDLE STATE

       The handle must be newly created, otherwise this call will return an error.

VERSION

       This function first appeared in libnbd 1.2.

       If you need to test if this function is available at compile time check if the following
       macro is defined:

        #define LIBNBD_HAVE_NBD_SET_REQUEST_STRUCTURED_REPLIES 1

SEE ALSO

       nbd_can_df(3), nbd_can_meta_context(3), nbd_create(3),
       nbd_get_request_structured_replies(3), nbd_get_structured_replies_negotiated(3),
       nbd_opt_structured_reply(3), nbd_set_handshake_flags(3), nbd_set_opt_mode(3),
       nbd_set_strict_mode(3), libnbd(3).

AUTHORS

       Eric Blake

       Richard W.M. Jones

COPYRIGHT

       Copyright Red Hat

LICENSE

       This library is free software; you can redistribute it and/or modify it under the terms of
       the GNU Lesser General Public License as published by the Free Software Foundation; either
       version 2 of the License, or (at your option) any later version.

       This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
       without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
       See the GNU Lesser General Public License for more details.

       You should have received a copy of the GNU Lesser General Public License along with this
       library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
       Floor, Boston, MA 02110-1301 USA