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142 lines
5.2 KiB
C
142 lines
5.2 KiB
C
/* Copyright (C) 1999-2003 Free Software Foundation, Inc.
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This file is part of the GNU LIBICONV Library.
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The GNU LIBICONV Library is free software; you can redistribute it
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and/or modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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The GNU LIBICONV Library is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU LIBICONV Library; see the file COPYING.LIB.
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If not, write to the Free Software Foundation, Inc., 59 Temple Place -
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Suite 330, Boston, MA 02111-1307, USA. */
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/* When installed, this file is called "iconv.h". */
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#ifndef _LIBICONV_H
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#define _LIBICONV_H
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#define _LIBICONV_VERSION 0x0109 /* version number: (major<<8) + minor */
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#ifdef LIBICONV_STATIC
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#define LIBICONV_DLL_EXPORTED
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#else /* LIBICONV_STATIC */
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#ifdef BUILDING_LIBICONV
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#define LIBICONV_DLL_EXPORTED __declspec(dllexport)
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#else
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#define LIBICONV_DLL_EXPORTED __declspec(dllimport)
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#endif
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#endif /* LIBICONV_STATIC */
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extern LIBICONV_DLL_EXPORTED int _libiconv_version; /* Likewise */
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/* We would like to #include any system header file which could define
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iconv_t, 1. in order to eliminate the risk that the user gets compilation
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errors because some other system header file includes /usr/include/iconv.h
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which defines iconv_t or declares iconv after this file, 2. when compiling
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for LIBICONV_PLUG, we need the proper iconv_t type in order to produce
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binary compatible code.
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But gcc's #include_next is not portable. Thus, once libiconv's iconv.h
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has been installed in /usr/local/include, there is no way any more to
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include the original /usr/include/iconv.h. We simply have to get away
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without it.
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Ad 1. The risk that a system header file does
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#include "iconv.h" or #include_next "iconv.h"
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is small. They all do #include <iconv.h>.
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Ad 2. The iconv_t type is a pointer type in all cases I have seen. (It
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has to be a scalar type because (iconv_t)(-1) is a possible return value
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from iconv_open().) */
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/* Define iconv_t ourselves. */
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#undef iconv_t
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#define iconv_t libiconv_t
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typedef void* iconv_t;
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/* Get size_t declaration. */
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#include <stddef.h>
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/* Get errno declaration and values. */
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#include <errno.h>
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/* Some systems, like SunOS 4, don't have EILSEQ. Some systems, like BSD/OS,
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have EILSEQ in a different header. On these systems, define EILSEQ
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ourselves. */
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#ifndef EILSEQ
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#define EILSEQ
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Allocates descriptor for code conversion from encoding `fromcode' to
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encoding `tocode'. */
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#ifndef LIBICONV_PLUG
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#define iconv_open libiconv_open
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#endif
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extern LIBICONV_DLL_EXPORTED iconv_t iconv_open (const char* tocode, const char* fromcode);
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/* Converts, using conversion descriptor `cd', at most `*inbytesleft' bytes
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starting at `*inbuf', writing at most `*outbytesleft' bytes starting at
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`*outbuf'.
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Decrements `*inbytesleft' and increments `*inbuf' by the same amount.
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Decrements `*outbytesleft' and increments `*outbuf' by the same amount. */
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#ifndef LIBICONV_PLUG
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#define iconv libiconv
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#endif
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extern LIBICONV_DLL_EXPORTED size_t iconv (iconv_t cd, const char* * inbuf, size_t *inbytesleft, char* * outbuf, size_t *outbytesleft);
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/* Frees resources allocated for conversion descriptor `cd'. */
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#ifndef LIBICONV_PLUG
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#define iconv_close libiconv_close
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#endif
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extern LIBICONV_DLL_EXPORTED int iconv_close (iconv_t cd);
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#ifndef LIBICONV_PLUG
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/* Nonstandard extensions. */
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/* Control of attributes. */
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#define iconvctl libiconvctl
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extern LIBICONV_DLL_EXPORTED int iconvctl (iconv_t cd, int request, void* argument);
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/* Requests for iconvctl. */
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#define ICONV_TRIVIALP 0 /* int *argument */
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#define ICONV_GET_TRANSLITERATE 1 /* int *argument */
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#define ICONV_SET_TRANSLITERATE 2 /* const int *argument */
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#define ICONV_GET_DISCARD_ILSEQ 3 /* int *argument */
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#define ICONV_SET_DISCARD_ILSEQ 4 /* const int *argument */
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/* Listing of locale independent encodings. */
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#define iconvlist libiconvlist
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extern LIBICONV_DLL_EXPORTED void iconvlist (int (*do_one) (unsigned int namescount,
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const char * const * names,
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void* data),
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void* data);
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/* Support for relocatable packages. */
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/* Sets the original and the current installation prefix of the package.
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Relocation simply replaces a pathname starting with the original prefix
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by the corresponding pathname with the current prefix instead. Both
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prefixes should be directory names without trailing slash (i.e. use ""
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instead of "/"). */
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extern LIBICONV_DLL_EXPORTED void libiconv_set_relocation_prefix (const char *orig_prefix,
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const char *curr_prefix);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBICONV_H */
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