NAME¶

nbd_connect_socket - connect directly to a connected socket

SYNOPSIS¶

 #include <libnbd.h>
 int nbd_connect_socket (struct nbd_handle *h, int sock);

DESCRIPTION¶

Pass a connected socket "sock" through which libnbd will talk to the NBD server.

The caller is responsible for creating and connecting this socket by some method, before passing it to libnbd.

If this call returns without error then socket ownership is passed to libnbd. Libnbd will close the socket when the handle is closed. The caller must not use the socket in any way.

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_CONNECT_SOCKET 1

SEE ALSO¶

nbd_aio_connect_socket(3), nbd_connect_command(3), nbd_create(3), libnbd(3), socket(7).

AUTHORS¶

Eric Blake

Richard W.M. Jones

COPYRIGHT¶

Copyright (C) 2019-2021 Red Hat Inc.

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