nbd_get_version - return the version of the library


 #include <libnbd.h>

 const char * nbd_get_version (struct nbd_handle *h);


Return the version of libnbd. This is returned as a string in the form "major.minor.release" where each of major, minor and release is a small positive integer. For example:

     ↑   ↑
 major   release
major = 0

The major number was 0 for the early experimental versions of libnbd where we still had an unstable API.

major = 1

The major number is 1 for the versions of libnbd with a long-term stable API and ABI. It is not anticipated that major will be any number other than 1.

minor = 0, 2, ... (even)

The minor number is even for stable releases.

minor = 1, 3, ... (odd)

The minor number is odd for development versions. Note that new APIs added in a development version remain experimental and subject to change in that branch until they appear in a stable release.


The release number is incremented for each release along a particular branch.


This call returns a statically allocated string, valid for the lifetime of the process or until libnbd is unloaded by dlclose(3). You must not try to free the string.


This function does not fail.


This function first appeared in libnbd 1.0.

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



nbd_create(3), nbd_get_package_name(3), libnbd(3).


Eric Blake

Richard W.M. Jones


Copyright (C) 2019-2020 Red Hat Inc.


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