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.\" ========================================================================
.\"
.IX Title "nbd_get_version 3"
.TH nbd_get_version 3 "2021-02-09" "libnbd-1.6.1" "LIBNBD"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
nbd_get_version \- return the version of the library
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <libnbd.h>
\&
\& const char * nbd_get_version (struct nbd_handle *h);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Return the version of libnbd.  This is returned as a string
in the form \f(CW"major.minor.release"\fR where each of major, minor
and release is a small positive integer.  For example:
.PP
.Vb 5
\&     minor
\&       ↓
\&    "1.0.3"
\&     ↑   ↑
\& major   release
.Ve
.IP "major = 0" 4
.IX Item "major = 0"
The major number was \f(CW0\fR for the early experimental versions of
libnbd where we still had an unstable \s-1API.\s0
.IP "major = 1" 4
.IX Item "major = 1"
The major number is \f(CW1\fR for the versions of libnbd with a
long-term stable \s-1API\s0 and \s-1ABI.\s0  It is not anticipated that
major will be any number other than \f(CW1\fR.
.IP "minor = 0, 2, ... (even)" 4
.IX Item "minor = 0, 2, ... (even)"
The minor number is even for stable releases.
.IP "minor = 1, 3, ... (odd)" 4
.IX Item "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.
.IP "release" 4
.IX Item "release"
The release number is incremented for each release along a particular
branch.
.SH "RETURN VALUE"
.IX Header "RETURN VALUE"
This call returns a statically allocated string, valid for the
lifetime of the process or until libnbd is unloaded by
\&\fBdlclose\fR\|(3).  You \fBmust not\fR try to free the string.
.SH "ERRORS"
.IX Header "ERRORS"
This function does not fail.
.SH "VERSION"
.IX Header "VERSION"
This function first appeared in libnbd 1.0.
.PP
If you need to test if this function is available at compile time
check if the following macro is defined:
.PP
.Vb 1
\& #define LIBNBD_HAVE_NBD_GET_VERSION 1
.Ve
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBnbd_create\fR\|(3),
\&\fBnbd_get_package_name\fR\|(3),
\&\fBlibnbd\fR\|(3).
.SH "AUTHORS"
.IX Header "AUTHORS"
Eric Blake
.PP
Richard W.M. Jones
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (C) 2019\-2020 Red Hat Inc.
.SH "LICENSE"
.IX Header "LICENSE"
This library is free software; you can redistribute it and/or
modify it under the terms of the \s-1GNU\s0 Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
.PP
This library is distributed in the hope that it will be useful,
but \s-1WITHOUT ANY WARRANTY\s0; without even the implied warranty of
\&\s-1MERCHANTABILITY\s0 or \s-1FITNESS FOR A PARTICULAR PURPOSE.\s0  See the \s-1GNU\s0
Lesser General Public License for more details.
.PP
You should have received a copy of the \s-1GNU\s0 Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, \s-1MA 02110\-1301 USA\s0