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.\" $OpenBSD: catopen.3,v 1.8 2013/06/05 03:39:23 tedu Exp $
.\"
.\" Written by J.T. Conklin <jtc@netbsd.org>.
.\" Public domain.
.\"
.Dd $Mdocdate: June 5 2013 $
.Dt CATOPEN 3
.Os
.Sh NAME
.Nm catopen
.Nd open message catalog
.Sh SYNOPSIS
.In nl_types.h
.Ft nl_catd
.Fn catopen "const char *name" "int oflag"
.Sh DESCRIPTION
The
.Fn catopen
function opens the message catalog specified by
.Fa name
and returns a message catalog descriptor.
If
.Fa name
contains a
.Ql / ,
then
.Fa name
specifies the full pathname for the message catalog, otherwise the value
of the environment variable
.Ev NLSPATH
is used with
.Fa name
substituted for
.Ql \&%N .
.Pp
If the
.Fa oflag
argument is
.Dv NL_CAT_LOCALE ,
the
.Ev LC_MESSAGES
environment variable is used to select the message catalog.
If the
.Fa oflag
argument is zero, the
.Ev LANG
environment variable is used to select the message catalog.
.Sh RETURN VALUES
Upon successful completion,
.Fn catopen
returns a message catalog descriptor.
Otherwise, \-1 is returned and
.Va errno
is set to indicate the error.
.Sh SEE ALSO
.Xr catclose 3 ,
.Xr catgets 3
.Sh STANDARDS
The
.Fn catopen
function conforms to
.St -p1003.1-2008 .
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