X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Flocalcharset.c;h=66099d5e315bfbddc1118042a4a9eb9b3ac61b90;hb=0df2580e13bb5523b7f5569e9bec1fda9c812677;hp=2b1564e2fd8d00b71cd112d2e26d3da6bd37d560;hpb=120198bc782d3d46c3f7247200ef8cb3e102b991;p=gnulib.git

diff --git a/lib/localcharset.c b/lib/localcharset.c
index 2b1564e2f..66099d5e3 100644
--- a/lib/localcharset.c
+++ b/lib/localcharset.c
@@ -1,21 +1,20 @@
 /* Determine a canonical name for the current locale's character encoding.
 
-   Copyright (C) 2000-2002 Free Software Foundation, Inc.
+   Copyright (C) 2000-2004 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU Library General Public License as published
-   by the Free Software Foundation; either version 2, or (at your option)
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-   USA.  */
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 /* Written by Bruno Haible <bruno@clisp.org>.  */
 
@@ -23,6 +22,9 @@
 # include <config.h>
 #endif
 
+/* Specification.  */
+#include "localcharset.h"
+
 #if HAVE_STDDEF_H
 # include <stddef.h>
 #endif
@@ -64,8 +66,14 @@
 # include <os2.h>
 #endif
 
-#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
-  /* Win32, OS/2, DOS */
+#if ENABLE_RELOCATABLE
+# include "relocatable.h"
+#else
+# define relocate(pathname) (pathname)
+#endif
+
+#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
+  /* Win32, Cygwin, OS/2, DOS */
 # define ISSLASH(C) ((C) == '/' || (C) == '\\')
 #endif
 
@@ -77,16 +85,11 @@
 # define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
 #endif
 
-#ifdef HAVE_GETC_UNLOCKED
+#if HAVE_DECL_GETC_UNLOCKED
 # undef getc
 # define getc getc_unlocked
 #endif
 
-#ifdef __cplusplus
-/* When compiling with "gcc -x c++", produce a function with C linkage.  */
-extern "C" const char * locale_charset (void);
-#endif
-
 /* The following static variable is declared 'volatile' to avoid a
    possible multithread problem in the function get_charset_aliases. If we
    are running in a threaded environment, and if two threads initialize
@@ -110,9 +113,9 @@ get_charset_aliases ()
   cp = charset_aliases;
   if (cp == NULL)
     {
-#if !defined WIN32
+#if !(defined VMS || defined WIN32)
       FILE *fp;
-      const char *dir = LIBDIR;
+      const char *dir = relocate (LIBDIR);
       const char *base = "charset.alias";
       char *file_name;
 
@@ -137,15 +140,17 @@ get_charset_aliases ()
       else
 	{
 	  /* Parse the file's contents.  */
-	  int c;
-	  char buf1[50+1];
-	  char buf2[50+1];
 	  char *res_ptr = NULL;
 	  size_t res_size = 0;
-	  size_t l1, l2;
 
 	  for (;;)
 	    {
+	      int c;
+	      char buf1[50+1];
+	      char buf2[50+1];
+	      size_t l1, l2;
+	      char *old_res_ptr;
+
 	      c = getc (fp);
 	      if (c == EOF)
 		break;
@@ -166,6 +171,7 @@ get_charset_aliases ()
 		break;
 	      l1 = strlen (buf1);
 	      l2 = strlen (buf2);
+	      old_res_ptr = res_ptr;
 	      if (res_size == 0)
 		{
 		  res_size = l1 + 1 + l2 + 1;
@@ -180,6 +186,8 @@ get_charset_aliases ()
 		{
 		  /* Out of memory. */
 		  res_size = 0;
+		  if (old_res_ptr != NULL)
+		    free (old_res_ptr);
 		  break;
 		}
 	      strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
@@ -200,11 +208,36 @@ get_charset_aliases ()
 
 #else
 
+# if defined VMS
+      /* To avoid the troubles of an extra file charset.alias_vms in the
+	 sources of many GNU packages, simply inline the aliases here.  */
+      /* The list of encodings is taken from the OpenVMS 7.3-1 documentation
+	 "Compaq C Run-Time Library Reference Manual for OpenVMS systems"
+	 section 10.7 "Handling Different Character Sets".  */
+      cp = "ISO8859-1" "\0" "ISO-8859-1" "\0"
+	   "ISO8859-2" "\0" "ISO-8859-2" "\0"
+	   "ISO8859-5" "\0" "ISO-8859-5" "\0"
+	   "ISO8859-7" "\0" "ISO-8859-7" "\0"
+	   "ISO8859-8" "\0" "ISO-8859-8" "\0"
+	   "ISO8859-9" "\0" "ISO-8859-9" "\0"
+	   /* Japanese */
+	   "eucJP" "\0" "EUC-JP" "\0"
+	   "SJIS" "\0" "SHIFT_JIS" "\0"
+	   "DECKANJI" "\0" "DEC-KANJI" "\0"
+	   "SDECKANJI" "\0" "EUC-JP" "\0"
+	   /* Chinese */
+	   "eucTW" "\0" "EUC-TW" "\0"
+	   "DECHANYU" "\0" "DEC-HANYU" "\0"
+	   "DECHANZI" "\0" "GB2312" "\0"
+	   /* Korean */
+	   "DECKOREAN" "\0" "EUC-KR" "\0";
+# endif
+
+# if defined WIN32
       /* To avoid the troubles of installing a separate file in the same
 	 directory as the DLL and of retrieving the DLL's directory at
 	 runtime, simply inline the aliases here.  */
 
-# if defined WIN32
       cp = "CP936" "\0" "GBK" "\0"
 	   "CP1361" "\0" "JOHAB" "\0"
 	   "CP20127" "\0" "ASCII" "\0"