CATOPEN(3C)                          SysV                          CATOPEN(3C)



NAME
     catopen - Opens a specified message catalog

SYNOPSIS
     #include <nl_types.h>

     nl_catd catopen (name, oflag )
     const char *name;
     int oflag;

DESCRIPTION
     The catopen function opens a specified message catalog and returns a
     catalog descriptor that is used to retrieve messages from the catalog in
     subsequent calls to catgets(3C).

     The name argument specifies the name of the message catalog to be opened.
     If name contains a / (slash), then name specifies a full pathname for the
     message catalog.  Otherwise, the environment variable NLSPATH is used
     with name substituted for %N.  If NLSPATH does not exist in the
     environment, or if a message catalog cannot be opened in any of the
     components specified by NLSPATH, then a default message catalog is used.

     The default language, territory, and codeset for program localization is
     defined by the LANG environment variable. Users (or system
     administrators) must set the LANG environment variable in order to
     specify default requirements for program localization.

     If a file descriptor is used to implement message catalog descriptors,
     the FD_CLOEXEC flag will be set.

     oflag is included for compatibility with X/Open. The oflag argument is
     reserved for future use and should be set to zero.  The results of
     setting this field to any other value are undefined.

NOTES
     The special nl_catd data type is used for catalog descriptors. Since this
     data type is defined in the nl_types.h header file, include this file in
     your application program.

DIAGNOSTICS
     Upon successful completion, catopen returns a message catalogue
     descriptor for use on subsequent calls to catgets and catclose.
     Otherwise catopen returns nl_catd -1.

SEE ALSO
     catclose(3C), catgets(3C),

     For more information on setting environment variables, see the "Overview
     of Internationalization on Domain/OS" chapter  in:  Domain System
     Software Release Notes, Software Release 10.4.