1 rizwank 1.1 /* Implementation of the textdomain(3) function.
  2                Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
  3                Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
  4             
  5                This program is free software; you can redistribute it and/or modify
  6                it under the terms of the GNU General Public License as published by
  7                the Free Software Foundation; either version 2, or (at your option)
  8                any later version.
  9             
 10                This program is distributed in the hope that it will be useful,
 11                but WITHOUT ANY WARRANTY; without even the implied warranty of
 12                MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13                GNU General Public License for more details.
 14             
 15                You should have received a copy of the GNU General Public License
 16                along with this program; if not, write to the Free Software Foundation,
 17                Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 18             
 19             #ifdef HAVE_CONFIG_H
 20             # include <config.h>
 21             #endif
 22 rizwank 1.1 
 23             #if defined STDC_HEADERS || defined _LIBC
 24             # include <stdlib.h>
 25             #endif
 26             
 27             #if defined STDC_HEADERS || defined HAVE_STRING_H || defined _LIBC
 28             # include <string.h>
 29             #else
 30             # include <strings.h>
 31             # ifndef memcpy
 32             #  define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
 33             # endif
 34             #endif
 35             
 36             #ifdef _LIBC
 37             # include <libintl.h>
 38             #else
 39             # include "libgettext.h"
 40             #endif
 41             
 42             /* @@ end of prolog @@ */
 43 rizwank 1.1 
 44             /* Name of the default text domain.  */
 45             extern const char _nl_default_default_domain[];
 46             
 47             /* Default text domain in which entries for gettext(3) are to be found.  */
 48             extern const char *_nl_current_default_domain;
 49             
 50             
 51             /* Names for the libintl functions are a problem.  They must not clash
 52                with existing names and they should follow ANSI C.  But this source
 53                code is also used in GNU C Library where the names have a __
 54                prefix.  So we have to make a difference here.  */
 55             #ifdef _LIBC
 56             # define TEXTDOMAIN __textdomain
 57             # ifndef strdup
 58             #  define strdup(str) __strdup (str)
 59             # endif
 60             #else
 61             # define TEXTDOMAIN textdomain__
 62             #endif
 63             
 64 rizwank 1.1 /* Set the current default message catalog to DOMAINNAME.
 65                If DOMAINNAME is null, return the current default.
 66                If DOMAINNAME is "", reset to the default of "messages".  */
 67             char *
 68             TEXTDOMAIN (domainname)
 69                  const char *domainname;
 70             {
 71               char *old;
 72             
 73               /* A NULL pointer requests the current setting.  */
 74               if (domainname == NULL)
 75                 return (char *) _nl_current_default_domain;
 76             
 77               old = (char *) _nl_current_default_domain;
 78             
 79               /* If domain name is the null string set to default domain "messages".  */
 80               if (domainname[0] == '\0'
 81                   || strcmp (domainname, _nl_default_default_domain) == 0)
 82                 _nl_current_default_domain = _nl_default_default_domain;
 83               else
 84                 {
 85 rizwank 1.1       /* If the following malloc fails `_nl_current_default_domain'
 86             	 will be NULL.  This value will be returned and so signals we
 87             	 are out of core.  */
 88             #if defined _LIBC || defined HAVE_STRDUP
 89                   _nl_current_default_domain = strdup (domainname);
 90             #else
 91                   size_t len = strlen (domainname) + 1;
 92                   char *cp = (char *) malloc (len);
 93                   if (cp != NULL)
 94             	memcpy (cp, domainname, len);
 95                   _nl_current_default_domain = cp;
 96             #endif
 97                 }
 98             
 99               if (old != _nl_default_default_domain)
100                 free (old);
101             
102               return (char *) _nl_current_default_domain;
103             }
104             
105             #ifdef _LIBC
106 rizwank 1.1 /* Alias for function name in GNU C Library.  */
107             weak_alias (__textdomain, textdomain);
108             #endif