src/oldsed/intl/os2compat.c

   1 /* OS/2 compatibility functions.
   2    Copyright (C) 2001-2002 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify it
   5    under the terms of the GNU Library General Public License as published
   6    by the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with this program; if not, write to the Free Software
  16    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17    USA.  */
  18
  19 #define OS2_AWARE
  20 #ifdef HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 /* A version of getenv() that works from DLLs */
  28 extern unsigned long DosScanEnv (const unsigned char *pszName, unsigned char **ppszValue);
  29
  30 char *
  31 _nl_getenv (const char *name)
  32 {
  33   unsigned char *value;
  34   if (DosScanEnv (name, &value))
  35     return NULL;
  36   else
  37     return value;
  38 }
  39
  40 char _nl_default_dirname[] =    /* a 260+1 bytes large buffer */
  41   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  42   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  43   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  44   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  45   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  46   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  47   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  48   "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
  49   "\0\0\0\0"
  50 #define LOCALEDIR_MAX 260
  51
  52 char *_os2_libdir = NULL;
  53 char *_os2_localealiaspath = NULL;
  54 char *_os2_localedir = NULL;
  55
  56 static __attribute__((constructor)) void
  57 os2_initialize ()
  58 {
  59   char *root = getenv ("UNIXROOT");
  60   char *gnulocaledir = getenv ("GNULOCALEDIR");
  61
  62   _os2_libdir = gnulocaledir;
  63   if (!_os2_libdir)
  64     {
  65       if (root)
  66         {
  67           size_t sl = strlen (root);
  68           _os2_libdir = (char *) malloc (sl + strlen (LIBDIR) + 1);
  69           memcpy (_os2_libdir, root, sl);
  70           memcpy (_os2_libdir + sl, LIBDIR, strlen (LIBDIR) + 1);
  71         }
  72       else
  73         _os2_libdir = LIBDIR;
  74     }
  75
  76   _os2_localealiaspath = gnulocaledir;
  77   if (!_os2_localealiaspath)
  78     {
  79       if (root)
  80         {
  81           size_t sl = strlen (root);
  82           _os2_localealiaspath = (char *) malloc (sl + strlen (LOCALE_ALIAS_PATH) + 1);
  83           memcpy (_os2_localealiaspath, root, sl);
  84           memcpy (_os2_localealiaspath + sl, LOCALE_ALIAS_PATH, strlen (LOCALE_ALIAS_PATH) + 1);
  85         }
  86      else
  87         _os2_localealiaspath = LOCALE_ALIAS_PATH;
  88     }
  89
  90   _os2_localedir = gnulocaledir;
  91   if (!_os2_localedir)
  92     {
  93       if (root)
  94         {
  95           size_t sl = strlen (root);
  96           _os2_localedir = (char *) malloc (sl + strlen (LOCALEDIR) + 1);
  97           memcpy (_os2_localedir, root, sl);
  98           memcpy (_os2_localedir + sl, LOCALEDIR, strlen (LOCALEDIR) + 1);
  99         }
 100       else
 101         _os2_localedir = LOCALEDIR;
 102     }
 103
 104   {
 105     extern const char _nl_default_dirname__[];
 106     if (strlen (_os2_localedir) <= LOCALEDIR_MAX)
 107       strcpy (_nl_default_dirname__, _os2_localedir);
 108   }
 109 }