1.\" Copyright (c) 2011 The FreeBSD Foundation 2.\" All rights reserved. 3.\" 4.\" This documentation was written by David Chisnall under sponsorship from 5.\" the FreeBSD Foundation. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd November 8, 2020 31.Dt QUERYLOCALE 3 32.Os 33.Sh NAME 34.Nm querylocale 35.Nd Look up the locale name or version for a specified category 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS 39.In locale.h 40.Ft const char * 41.Fn querylocale "int mask" "locale_t locale" 42.Sh DESCRIPTION 43Returns the name or version of the locale for the category specified by 44.Fa mask . 45The possible values for the mask are the same as those in 46.Xr newlocale 3 , 47when requesting the locale name. 48Specify the bitwise OR of 49.Fa LC_VERSION_MASK 50and another mask value to request a version string. 51Version strings can be compared to detect changes to the locale's definition. 52The structure of the version string is unspecified. 53Currently, version information is only available for 54.Fa LC_COLLATE_MASK , 55and an empty string is returned for other categories. 56If more than one bit in the mask is set, not counting 57.Fa LC_VERSION_MASK , 58the returned value is undefined. 59.Sh SEE ALSO 60.Xr duplocale 3 , 61.Xr freelocale 3 , 62.Xr localeconv 3 , 63.Xr newlocale 3 , 64.Xr uselocale 3 , 65.Xr xlocale 3 66.Sh HISTORY 67The 68.Fn querylocale 69function first appeared in 70.Fx 9.1 , 71and is based on the function of the same name in Darwin. 72.Fa LC_VERSION_MASK 73first appeared in 74.Fx 13.0 . 75