From 3d08cd331c1adcf0d917392f7e527b3f00511748 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 24 May 2024 06:52:22 +0200 Subject: Merging upstream version 6.8. Signed-off-by: Daniel Baumann --- man/man3/catopen.3 | 199 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 199 insertions(+) create mode 100644 man/man3/catopen.3 (limited to 'man/man3/catopen.3') diff --git a/man/man3/catopen.3 b/man/man3/catopen.3 new file mode 100644 index 0000000..278213f --- /dev/null +++ b/man/man3/catopen.3 @@ -0,0 +1,199 @@ +'\" t +.\" Copyright 1993 Mitchum DSouza +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" Modified Thu Dec 13 22:51:19 2001 by Martin Schulze +.\" Modified 2001-12-14 aeb +.\" +.TH catopen 3 2024-05-02 "Linux man-pages (unreleased)" +.SH NAME +catopen, catclose \- open/close a message catalog +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include +.P +.BI "nl_catd catopen(const char *" name ", int " flag ); +.BI "int catclose(nl_catd " catalog ); +.fi +.SH DESCRIPTION +The function +.BR catopen () +opens a message catalog and returns a catalog descriptor. +The descriptor remains valid until +.BR catclose () +or +.BR execve (2). +If a file descriptor is used to implement catalog descriptors, +then the +.B FD_CLOEXEC +flag will be set. +.P +The argument +.I name +specifies the name of the message catalog to be opened. +If +.I name +specifies an absolute path (i.e., contains a \[aq]/\[aq]), +then +.I name +specifies a pathname for the message catalog. +Otherwise, the environment variable +.B NLSPATH +is used with +.I name +substituted for +.B %N +(see +.BR locale (7)). +It is unspecified whether +.B NLSPATH +will be used when the process has root privileges. +If +.B NLSPATH +does not exist in the environment, +or if a message catalog cannot be opened +in any of the paths specified by it, +then an implementation defined path is used. +This latter default path may depend on the +.B LC_MESSAGES +locale setting when the +.I flag +argument is +.B NL_CAT_LOCALE +and on the +.B LANG +environment variable when the +.I flag +argument is 0. +Changing the +.B LC_MESSAGES +part of the locale may invalidate +open catalog descriptors. +.P +The +.I flag +argument to +.BR catopen () +is used to indicate the source for the language to use. +If it is set to +.BR NL_CAT_LOCALE , +then it will use the current locale setting for +.BR LC_MESSAGES . +Otherwise, it will use the +.B LANG +environment variable. +.P +The function +.BR catclose () +closes the message catalog identified by +.IR catalog . +It invalidates any subsequent references to the message catalog +defined by +.IR catalog . +.SH RETURN VALUE +The function +.BR catopen () +returns a message catalog descriptor of type +.I nl_catd +on success. +On failure, it returns +.I (nl_catd)\~\-1 +and sets +.I errno +to indicate the error. +The possible error values include all +possible values for the +.BR open (2) +call. +.P +The function +.BR catclose () +returns 0 on success, or \-1 on failure. +.SH ENVIRONMENT +.TP +.B LC_MESSAGES +May be the source of the +.B LC_MESSAGES +locale setting, and thus +determine the language to use if +.I flag +is set to +.BR NL_CAT_LOCALE . +.TP +.B LANG +The language to use if +.I flag +is 0. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR catopen () +T} Thread safety MT-Safe env +T{ +.na +.nh +.BR catclose () +T} Thread safety MT-Safe +.TE +.SH VERSIONS +The above is the POSIX.1 description. +The glibc value for +.B NL_CAT_LOCALE +is 1. +.\" (Compare +.\" .B MCLoadAll +.\" below.) +The default path varies, but usually looks at a number of places below +.IR /usr/share/locale . +.\" .SS Linux notes +.\" These functions are available for Linux since libc 4.4.4c. +.\" In the case of linux libc4 and libc5, the catalog descriptor +.\" .I nl_catd +.\" is a +.\" .BR mmap (2)'ed +.\" area of memory and not a file descriptor. +.\" The +.\" .I flag +.\" argument to +.\" .BR catopen () +.\" should be either +.\" .B MCLoadBySet +.\" (=0) or +.\" .B MCLoadAll +.\" (=1). +.\" The former value indicates that a set from the catalog is to be +.\" loaded when needed, whereas the latter causes the initial call to +.\" .BR catopen () +.\" to load the entire catalog into memory. +.\" The default search path varies, but usually looks at a number of places below +.\" .I /etc/locale +.\" and +.\" .IR /usr/lib/locale . +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001. +.\" In XPG 1987, Vol. 3 it says: +.\" .I "The flag argument of catopen is reserved for future use" +.\" .IR "and should be set to 0" . +.\" +.\" It is unclear what the source was for the constants +.\" .B MCLoadBySet +.\" and +.\" .B MCLoadAll +.\" (see below). +.SH SEE ALSO +.BR catgets (3), +.BR setlocale (3) -- cgit v1.2.3