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4209 lines
103 KiB
4209 lines
103 KiB
/*-
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* Copyright (c) 2003-2011 Tim Kientzle
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* Copyright (c) 2011-2012 Michihiro NAKAJIMA
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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__FBSDID("$FreeBSD: head/lib/libarchive/archive_string.c 201095 2009-12-28 02:33:22Z kientzle $");
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/*
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* Basic resizable string support, to simplify manipulating arbitrary-sized
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* strings while minimizing heap activity.
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*
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* In particular, the buffer used by a string object is only grown, it
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* never shrinks, so you can clear and reuse the same string object
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* without incurring additional memory allocations.
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*/
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#ifdef HAVE_ICONV_H
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#include <iconv.h>
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#endif
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#ifdef HAVE_LANGINFO_H
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#include <langinfo.h>
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#endif
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#ifdef HAVE_LOCALCHARSET_H
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#include <localcharset.h>
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_WCHAR_H
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#include <wchar.h>
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#endif
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#if defined(_WIN32) && !defined(__CYGWIN__)
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#include <windows.h>
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#include <locale.h>
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#endif
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#include "archive_endian.h"
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#include "archive_private.h"
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#include "archive_string.h"
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#include "archive_string_composition.h"
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#if !defined(HAVE_WMEMCPY) && !defined(wmemcpy)
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#define wmemcpy(a,b,i) (wchar_t *)memcpy((a), (b), (i) * sizeof(wchar_t))
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#endif
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#if !defined(HAVE_WMEMMOVE) && !defined(wmemmove)
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#define wmemmove(a,b,i) (wchar_t *)memmove((a), (b), (i) * sizeof(wchar_t))
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#endif
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struct archive_string_conv {
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struct archive_string_conv *next;
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char *from_charset;
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char *to_charset;
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unsigned from_cp;
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unsigned to_cp;
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/* Set 1 if from_charset and to_charset are the same. */
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int same;
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int flag;
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#define SCONV_TO_CHARSET 1 /* MBS is being converted to specified
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* charset. */
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#define SCONV_FROM_CHARSET (1<<1) /* MBS is being converted from
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* specified charset. */
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#define SCONV_BEST_EFFORT (1<<2) /* Copy at least ASCII code. */
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#define SCONV_WIN_CP (1<<3) /* Use Windows API for converting
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* MBS. */
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#define SCONV_UTF8_LIBARCHIVE_2 (1<<4) /* Incorrect UTF-8 made by libarchive
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* 2.x in the wrong assumption. */
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#define SCONV_NORMALIZATION_C (1<<6) /* Need normalization to be Form C.
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* Before UTF-8 characters are actually
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* processed. */
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#define SCONV_NORMALIZATION_D (1<<7) /* Need normalization to be Form D.
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* Before UTF-8 characters are actually
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* processed.
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* Currently this only for MAC OS X. */
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#define SCONV_TO_UTF8 (1<<8) /* "to charset" side is UTF-8. */
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#define SCONV_FROM_UTF8 (1<<9) /* "from charset" side is UTF-8. */
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#define SCONV_TO_UTF16BE (1<<10) /* "to charset" side is UTF-16BE. */
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#define SCONV_FROM_UTF16BE (1<<11) /* "from charset" side is UTF-16BE. */
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#define SCONV_TO_UTF16LE (1<<12) /* "to charset" side is UTF-16LE. */
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#define SCONV_FROM_UTF16LE (1<<13) /* "from charset" side is UTF-16LE. */
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#define SCONV_TO_UTF16 (SCONV_TO_UTF16BE | SCONV_TO_UTF16LE)
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#define SCONV_FROM_UTF16 (SCONV_FROM_UTF16BE | SCONV_FROM_UTF16LE)
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#if HAVE_ICONV
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iconv_t cd;
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iconv_t cd_w;/* Use at archive_mstring on
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* Windows. */
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#endif
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/* A temporary buffer for normalization. */
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struct archive_string utftmp;
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int (*converter[2])(struct archive_string *, const void *, size_t,
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struct archive_string_conv *);
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int nconverter;
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};
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#define CP_C_LOCALE 0 /* "C" locale only for this file. */
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#define CP_UTF16LE 1200
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#define CP_UTF16BE 1201
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#define IS_HIGH_SURROGATE_LA(uc) ((uc) >= 0xD800 && (uc) <= 0xDBFF)
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#define IS_LOW_SURROGATE_LA(uc) ((uc) >= 0xDC00 && (uc) <= 0xDFFF)
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#define IS_SURROGATE_PAIR_LA(uc) ((uc) >= 0xD800 && (uc) <= 0xDFFF)
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#define UNICODE_MAX 0x10FFFF
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#define UNICODE_R_CHAR 0xFFFD /* Replacement character. */
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/* Set U+FFFD(Replacement character) in UTF-8. */
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static const char utf8_replacement_char[] = {0xef, 0xbf, 0xbd};
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static struct archive_string_conv *find_sconv_object(struct archive *,
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const char *, const char *);
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static void add_sconv_object(struct archive *, struct archive_string_conv *);
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static struct archive_string_conv *create_sconv_object(const char *,
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const char *, unsigned, int);
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static void free_sconv_object(struct archive_string_conv *);
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static struct archive_string_conv *get_sconv_object(struct archive *,
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const char *, const char *, int);
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static unsigned make_codepage_from_charset(const char *);
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static unsigned get_current_codepage(void);
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static unsigned get_current_oemcp(void);
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static size_t mbsnbytes(const void *, size_t);
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static size_t utf16nbytes(const void *, size_t);
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#if defined(_WIN32) && !defined(__CYGWIN__)
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static int archive_wstring_append_from_mbs_in_codepage(
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struct archive_wstring *, const char *, size_t,
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struct archive_string_conv *);
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static int archive_string_append_from_wcs_in_codepage(struct archive_string *,
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const wchar_t *, size_t, struct archive_string_conv *);
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static int is_big_endian(void);
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static int strncat_in_codepage(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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static int win_strncat_from_utf16be(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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static int win_strncat_from_utf16le(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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static int win_strncat_to_utf16be(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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static int win_strncat_to_utf16le(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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#endif
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static int best_effort_strncat_from_utf16be(struct archive_string *,
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const void *, size_t, struct archive_string_conv *);
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static int best_effort_strncat_from_utf16le(struct archive_string *,
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const void *, size_t, struct archive_string_conv *);
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static int best_effort_strncat_to_utf16be(struct archive_string *,
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const void *, size_t, struct archive_string_conv *);
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static int best_effort_strncat_to_utf16le(struct archive_string *,
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const void *, size_t, struct archive_string_conv *);
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#if defined(HAVE_ICONV)
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static int iconv_strncat_in_locale(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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#endif
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static int best_effort_strncat_in_locale(struct archive_string *,
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const void *, size_t, struct archive_string_conv *);
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static int _utf8_to_unicode(uint32_t *, const char *, size_t);
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static int utf8_to_unicode(uint32_t *, const char *, size_t);
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static inline uint32_t combine_surrogate_pair(uint32_t, uint32_t);
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static int cesu8_to_unicode(uint32_t *, const char *, size_t);
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static size_t unicode_to_utf8(char *, size_t, uint32_t);
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static int utf16_to_unicode(uint32_t *, const char *, size_t, int);
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static size_t unicode_to_utf16be(char *, size_t, uint32_t);
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static size_t unicode_to_utf16le(char *, size_t, uint32_t);
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static int strncat_from_utf8_libarchive2(struct archive_string *,
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const void *, size_t, struct archive_string_conv *);
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static int strncat_from_utf8_to_utf8(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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static int archive_string_normalize_C(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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static int archive_string_normalize_D(struct archive_string *, const void *,
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size_t, struct archive_string_conv *);
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static int archive_string_append_unicode(struct archive_string *,
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const void *, size_t, struct archive_string_conv *);
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static struct archive_string *
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archive_string_append(struct archive_string *as, const char *p, size_t s)
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{
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if (archive_string_ensure(as, as->length + s + 1) == NULL)
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return (NULL);
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if (s)
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memmove(as->s + as->length, p, s);
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as->length += s;
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as->s[as->length] = 0;
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return (as);
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}
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static struct archive_wstring *
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archive_wstring_append(struct archive_wstring *as, const wchar_t *p, size_t s)
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{
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if (archive_wstring_ensure(as, as->length + s + 1) == NULL)
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return (NULL);
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if (s)
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wmemmove(as->s + as->length, p, s);
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as->length += s;
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as->s[as->length] = 0;
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return (as);
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}
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struct archive_string *
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archive_array_append(struct archive_string *as, const char *p, size_t s)
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{
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return archive_string_append(as, p, s);
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}
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void
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archive_string_concat(struct archive_string *dest, struct archive_string *src)
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{
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if (archive_string_append(dest, src->s, src->length) == NULL)
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__archive_errx(1, "Out of memory");
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}
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void
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archive_wstring_concat(struct archive_wstring *dest,
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struct archive_wstring *src)
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{
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if (archive_wstring_append(dest, src->s, src->length) == NULL)
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__archive_errx(1, "Out of memory");
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}
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void
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archive_string_free(struct archive_string *as)
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{
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as->length = 0;
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as->buffer_length = 0;
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free(as->s);
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as->s = NULL;
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}
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void
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archive_wstring_free(struct archive_wstring *as)
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{
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as->length = 0;
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as->buffer_length = 0;
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free(as->s);
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as->s = NULL;
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}
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struct archive_wstring *
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archive_wstring_ensure(struct archive_wstring *as, size_t s)
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{
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return (struct archive_wstring *)
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archive_string_ensure((struct archive_string *)as,
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s * sizeof(wchar_t));
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}
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/* Returns NULL on any allocation failure. */
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struct archive_string *
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archive_string_ensure(struct archive_string *as, size_t s)
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{
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char *p;
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size_t new_length;
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/* If buffer is already big enough, don't reallocate. */
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if (as->s && (s <= as->buffer_length))
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return (as);
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/*
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* Growing the buffer at least exponentially ensures that
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* append operations are always linear in the number of
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* characters appended. Using a smaller growth rate for
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* larger buffers reduces memory waste somewhat at the cost of
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* a larger constant factor.
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*/
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if (as->buffer_length < 32)
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/* Start with a minimum 32-character buffer. */
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new_length = 32;
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else if (as->buffer_length < 8192)
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/* Buffers under 8k are doubled for speed. */
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new_length = as->buffer_length + as->buffer_length;
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else {
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/* Buffers 8k and over grow by at least 25% each time. */
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new_length = as->buffer_length + as->buffer_length / 4;
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/* Be safe: If size wraps, fail. */
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if (new_length < as->buffer_length) {
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/* On failure, wipe the string and return NULL. */
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archive_string_free(as);
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errno = ENOMEM;/* Make sure errno has ENOMEM. */
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return (NULL);
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}
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}
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/*
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* The computation above is a lower limit to how much we'll
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* grow the buffer. In any case, we have to grow it enough to
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* hold the request.
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*/
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if (new_length < s)
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new_length = s;
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/* Now we can reallocate the buffer. */
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p = (char *)realloc(as->s, new_length);
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if (p == NULL) {
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/* On failure, wipe the string and return NULL. */
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archive_string_free(as);
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errno = ENOMEM;/* Make sure errno has ENOMEM. */
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return (NULL);
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}
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as->s = p;
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as->buffer_length = new_length;
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return (as);
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}
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/*
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* TODO: See if there's a way to avoid scanning
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* the source string twice. Then test to see
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* if it actually helps (remember that we're almost
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* always called with pretty short arguments, so
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* such an optimization might not help).
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*/
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struct archive_string *
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archive_strncat(struct archive_string *as, const void *_p, size_t n)
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{
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size_t s;
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const char *p, *pp;
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p = (const char *)_p;
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/* Like strlen(p), except won't examine positions beyond p[n]. */
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s = 0;
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pp = p;
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while (s < n && *pp) {
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pp++;
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s++;
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}
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if ((as = archive_string_append(as, p, s)) == NULL)
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__archive_errx(1, "Out of memory");
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return (as);
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}
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struct archive_wstring *
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archive_wstrncat(struct archive_wstring *as, const wchar_t *p, size_t n)
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{
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size_t s;
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const wchar_t *pp;
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/* Like strlen(p), except won't examine positions beyond p[n]. */
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s = 0;
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pp = p;
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while (s < n && *pp) {
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pp++;
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s++;
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}
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if ((as = archive_wstring_append(as, p, s)) == NULL)
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__archive_errx(1, "Out of memory");
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return (as);
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}
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struct archive_string *
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archive_strcat(struct archive_string *as, const void *p)
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{
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/* strcat is just strncat without an effective limit.
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* Assert that we'll never get called with a source
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* string over 16MB.
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* TODO: Review all uses of strcat in the source
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* and try to replace them with strncat().
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*/
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return archive_strncat(as, p, 0x1000000);
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}
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struct archive_wstring *
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archive_wstrcat(struct archive_wstring *as, const wchar_t *p)
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{
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/* Ditto. */
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return archive_wstrncat(as, p, 0x1000000);
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}
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struct archive_string *
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archive_strappend_char(struct archive_string *as, char c)
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{
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if ((as = archive_string_append(as, &c, 1)) == NULL)
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__archive_errx(1, "Out of memory");
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return (as);
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}
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struct archive_wstring *
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archive_wstrappend_wchar(struct archive_wstring *as, wchar_t c)
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{
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if ((as = archive_wstring_append(as, &c, 1)) == NULL)
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__archive_errx(1, "Out of memory");
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return (as);
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}
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/*
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* Get the "current character set" name to use with iconv.
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* On FreeBSD, the empty character set name "" chooses
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* the correct character encoding for the current locale,
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* so this isn't necessary.
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* But iconv on Mac OS 10.6 doesn't seem to handle this correctly;
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* on that system, we have to explicitly call nl_langinfo()
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* to get the right name. Not sure about other platforms.
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*
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* NOTE: GNU libiconv does not recognize the character-set name
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* which some platform nl_langinfo(CODESET) returns, so we should
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* use locale_charset() instead of nl_langinfo(CODESET) for GNU libiconv.
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*/
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static const char *
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default_iconv_charset(const char *charset) {
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if (charset != NULL && charset[0] != '\0')
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return charset;
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#if HAVE_LOCALE_CHARSET && !defined(__APPLE__)
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/* locale_charset() is broken on Mac OS */
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return locale_charset();
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#elif HAVE_NL_LANGINFO
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return nl_langinfo(CODESET);
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#else
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return "";
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#endif
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}
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#if defined(_WIN32) && !defined(__CYGWIN__)
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|
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/*
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* Convert MBS to WCS.
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* Note: returns -1 if conversion fails.
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*/
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int
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archive_wstring_append_from_mbs(struct archive_wstring *dest,
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const char *p, size_t len)
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{
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return archive_wstring_append_from_mbs_in_codepage(dest, p, len, NULL);
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}
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|
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static int
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archive_wstring_append_from_mbs_in_codepage(struct archive_wstring *dest,
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const char *s, size_t length, struct archive_string_conv *sc)
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{
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int count, ret = 0;
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UINT from_cp;
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if (sc != NULL)
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from_cp = sc->from_cp;
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else
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from_cp = get_current_codepage();
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|
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if (from_cp == CP_C_LOCALE) {
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/*
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* "C" locale special process.
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|
*/
|
|
wchar_t *ws;
|
|
const unsigned char *mp;
|
|
|
|
if (NULL == archive_wstring_ensure(dest,
|
|
dest->length + length + 1))
|
|
return (-1);
|
|
|
|
ws = dest->s + dest->length;
|
|
mp = (const unsigned char *)s;
|
|
count = 0;
|
|
while (count < (int)length && *mp) {
|
|
*ws++ = (wchar_t)*mp++;
|
|
count++;
|
|
}
|
|
} else if (sc != NULL &&
|
|
(sc->flag & (SCONV_NORMALIZATION_C | SCONV_NORMALIZATION_D))) {
|
|
/*
|
|
* Normalize UTF-8 and UTF-16BE and convert it directly
|
|
* to UTF-16 as wchar_t.
|
|
*/
|
|
struct archive_string u16;
|
|
int saved_flag = sc->flag;/* save current flag. */
|
|
|
|
if (is_big_endian())
|
|
sc->flag |= SCONV_TO_UTF16BE;
|
|
else
|
|
sc->flag |= SCONV_TO_UTF16LE;
|
|
|
|
if (sc->flag & SCONV_FROM_UTF16) {
|
|
/*
|
|
* UTF-16BE/LE NFD ===> UTF-16 NFC
|
|
* UTF-16BE/LE NFC ===> UTF-16 NFD
|
|
*/
|
|
count = (int)utf16nbytes(s, length);
|
|
} else {
|
|
/*
|
|
* UTF-8 NFD ===> UTF-16 NFC
|
|
* UTF-8 NFC ===> UTF-16 NFD
|
|
*/
|
|
count = (int)mbsnbytes(s, length);
|
|
}
|
|
u16.s = (char *)dest->s;
|
|
u16.length = dest->length << 1;;
|
|
u16.buffer_length = dest->buffer_length;
|
|
if (sc->flag & SCONV_NORMALIZATION_C)
|
|
ret = archive_string_normalize_C(&u16, s, count, sc);
|
|
else
|
|
ret = archive_string_normalize_D(&u16, s, count, sc);
|
|
dest->s = (wchar_t *)u16.s;
|
|
dest->length = u16.length >> 1;
|
|
dest->buffer_length = u16.buffer_length;
|
|
sc->flag = saved_flag;/* restore the saved flag. */
|
|
return (ret);
|
|
} else if (sc != NULL && (sc->flag & SCONV_FROM_UTF16)) {
|
|
count = (int)utf16nbytes(s, length);
|
|
count >>= 1; /* to be WCS length */
|
|
/* Allocate memory for WCS. */
|
|
if (NULL == archive_wstring_ensure(dest,
|
|
dest->length + count + 1))
|
|
return (-1);
|
|
wmemcpy(dest->s + dest->length, (const wchar_t *)s, count);
|
|
if ((sc->flag & SCONV_FROM_UTF16BE) && !is_big_endian()) {
|
|
uint16_t *u16 = (uint16_t *)(dest->s + dest->length);
|
|
int b;
|
|
for (b = 0; b < count; b++) {
|
|
uint16_t val = archive_le16dec(u16+b);
|
|
archive_be16enc(u16+b, val);
|
|
}
|
|
} else if ((sc->flag & SCONV_FROM_UTF16LE) && is_big_endian()) {
|
|
uint16_t *u16 = (uint16_t *)(dest->s + dest->length);
|
|
int b;
|
|
for (b = 0; b < count; b++) {
|
|
uint16_t val = archive_be16dec(u16+b);
|
|
archive_le16enc(u16+b, val);
|
|
}
|
|
}
|
|
} else {
|
|
DWORD mbflag;
|
|
size_t buffsize;
|
|
|
|
if (sc == NULL)
|
|
mbflag = 0;
|
|
else if (sc->flag & SCONV_FROM_CHARSET) {
|
|
/* Do not trust the length which comes from
|
|
* an archive file. */
|
|
length = mbsnbytes(s, length);
|
|
mbflag = 0;
|
|
} else
|
|
mbflag = MB_PRECOMPOSED;
|
|
|
|
buffsize = dest->length + length + 1;
|
|
do {
|
|
/* Allocate memory for WCS. */
|
|
if (NULL == archive_wstring_ensure(dest, buffsize))
|
|
return (-1);
|
|
/* Convert MBS to WCS. */
|
|
count = MultiByteToWideChar(from_cp,
|
|
mbflag, s, (int)length, dest->s + dest->length,
|
|
(int)(dest->buffer_length >> 1) -1);
|
|
if (count == 0 &&
|
|
GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
|
|
/* Expand the WCS buffer. */
|
|
buffsize = dest->buffer_length << 1;
|
|
continue;
|
|
}
|
|
if (count == 0 && length != 0)
|
|
ret = -1;
|
|
break;
|
|
} while (1);
|
|
}
|
|
dest->length += count;
|
|
dest->s[dest->length] = L'\0';
|
|
return (ret);
|
|
}
|
|
|
|
#else
|
|
|
|
/*
|
|
* Convert MBS to WCS.
|
|
* Note: returns -1 if conversion fails.
|
|
*/
|
|
int
|
|
archive_wstring_append_from_mbs(struct archive_wstring *dest,
|
|
const char *p, size_t len)
|
|
{
|
|
size_t r;
|
|
int ret_val = 0;
|
|
/*
|
|
* No single byte will be more than one wide character,
|
|
* so this length estimate will always be big enough.
|
|
*/
|
|
size_t wcs_length = len;
|
|
size_t mbs_length = len;
|
|
const char *mbs = p;
|
|
wchar_t *wcs;
|
|
#if HAVE_MBRTOWC
|
|
mbstate_t shift_state;
|
|
|
|
memset(&shift_state, 0, sizeof(shift_state));
|
|
#endif
|
|
if (NULL == archive_wstring_ensure(dest, dest->length + wcs_length + 1))
|
|
return (-1);
|
|
wcs = dest->s + dest->length;
|
|
/*
|
|
* We cannot use mbsrtowcs/mbstowcs here because those may convert
|
|
* extra MBS when strlen(p) > len and one wide character consists of
|
|
* multi bytes.
|
|
*/
|
|
while (*mbs && mbs_length > 0) {
|
|
if (wcs_length == 0) {
|
|
dest->length = wcs - dest->s;
|
|
dest->s[dest->length] = L'\0';
|
|
wcs_length = mbs_length;
|
|
if (NULL == archive_wstring_ensure(dest,
|
|
dest->length + wcs_length + 1))
|
|
return (-1);
|
|
wcs = dest->s + dest->length;
|
|
}
|
|
#if HAVE_MBRTOWC
|
|
r = mbrtowc(wcs, mbs, wcs_length, &shift_state);
|
|
#else
|
|
r = mbtowc(wcs, mbs, wcs_length);
|
|
#endif
|
|
if (r == (size_t)-1 || r == (size_t)-2) {
|
|
ret_val = -1;
|
|
if (errno == EILSEQ) {
|
|
++mbs;
|
|
--mbs_length;
|
|
continue;
|
|
} else
|
|
break;
|
|
}
|
|
if (r == 0 || r > mbs_length)
|
|
break;
|
|
wcs++;
|
|
wcs_length--;
|
|
mbs += r;
|
|
mbs_length -= r;
|
|
}
|
|
dest->length = wcs - dest->s;
|
|
dest->s[dest->length] = L'\0';
|
|
return (ret_val);
|
|
}
|
|
|
|
#endif
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
|
|
/*
|
|
* WCS ==> MBS.
|
|
* Note: returns -1 if conversion fails.
|
|
*
|
|
* Win32 builds use WideCharToMultiByte from the Windows API.
|
|
* (Maybe Cygwin should too? WideCharToMultiByte will know a
|
|
* lot more about local character encodings than the wcrtomb()
|
|
* wrapper is going to know.)
|
|
*/
|
|
int
|
|
archive_string_append_from_wcs(struct archive_string *as,
|
|
const wchar_t *w, size_t len)
|
|
{
|
|
return archive_string_append_from_wcs_in_codepage(as, w, len, NULL);
|
|
}
|
|
|
|
static int
|
|
archive_string_append_from_wcs_in_codepage(struct archive_string *as,
|
|
const wchar_t *ws, size_t len, struct archive_string_conv *sc)
|
|
{
|
|
BOOL defchar_used, *dp;
|
|
int count, ret = 0;
|
|
UINT to_cp;
|
|
int wslen = (int)len;
|
|
|
|
if (sc != NULL)
|
|
to_cp = sc->to_cp;
|
|
else
|
|
to_cp = get_current_codepage();
|
|
|
|
if (to_cp == CP_C_LOCALE) {
|
|
/*
|
|
* "C" locale special process.
|
|
*/
|
|
const wchar_t *wp = ws;
|
|
char *p;
|
|
|
|
if (NULL == archive_string_ensure(as,
|
|
as->length + wslen +1))
|
|
return (-1);
|
|
p = as->s + as->length;
|
|
count = 0;
|
|
defchar_used = 0;
|
|
while (count < wslen && *wp) {
|
|
if (*wp > 255) {
|
|
*p++ = '?';
|
|
wp++;
|
|
defchar_used = 1;
|
|
} else
|
|
*p++ = (char)*wp++;
|
|
count++;
|
|
}
|
|
} else if (sc != NULL && (sc->flag & SCONV_TO_UTF16)) {
|
|
uint16_t *u16;
|
|
|
|
if (NULL ==
|
|
archive_string_ensure(as, as->length + len * 2 + 2))
|
|
return (-1);
|
|
u16 = (uint16_t *)(as->s + as->length);
|
|
count = 0;
|
|
defchar_used = 0;
|
|
if (sc->flag & SCONV_TO_UTF16BE) {
|
|
while (count < (int)len && *ws) {
|
|
archive_be16enc(u16+count, *ws);
|
|
ws++;
|
|
count++;
|
|
}
|
|
} else {
|
|
while (count < (int)len && *ws) {
|
|
archive_le16enc(u16+count, *ws);
|
|
ws++;
|
|
count++;
|
|
}
|
|
}
|
|
count <<= 1; /* to be byte size */
|
|
} else {
|
|
/* Make sure the MBS buffer has plenty to set. */
|
|
if (NULL ==
|
|
archive_string_ensure(as, as->length + len * 2 + 1))
|
|
return (-1);
|
|
do {
|
|
defchar_used = 0;
|
|
if (to_cp == CP_UTF8 || sc == NULL)
|
|
dp = NULL;
|
|
else
|
|
dp = &defchar_used;
|
|
count = WideCharToMultiByte(to_cp, 0, ws, wslen,
|
|
as->s + as->length, (int)as->buffer_length-1, NULL, dp);
|
|
if (count == 0 &&
|
|
GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
|
|
/* Expand the MBS buffer and retry. */
|
|
if (NULL == archive_string_ensure(as,
|
|
as->buffer_length + len))
|
|
return (-1);
|
|
continue;
|
|
}
|
|
if (count == 0)
|
|
ret = -1;
|
|
break;
|
|
} while (1);
|
|
}
|
|
as->length += count;
|
|
as->s[as->length] = '\0';
|
|
return (defchar_used?-1:ret);
|
|
}
|
|
|
|
#elif defined(HAVE_WCTOMB) || defined(HAVE_WCRTOMB)
|
|
|
|
/*
|
|
* Translates a wide character string into current locale character set
|
|
* and appends to the archive_string. Note: returns -1 if conversion
|
|
* fails.
|
|
*/
|
|
int
|
|
archive_string_append_from_wcs(struct archive_string *as,
|
|
const wchar_t *w, size_t len)
|
|
{
|
|
/* We cannot use the standard wcstombs() here because it
|
|
* cannot tell us how big the output buffer should be. So
|
|
* I've built a loop around wcrtomb() or wctomb() that
|
|
* converts a character at a time and resizes the string as
|
|
* needed. We prefer wcrtomb() when it's available because
|
|
* it's thread-safe. */
|
|
int n, ret_val = 0;
|
|
char *p;
|
|
char *end;
|
|
#if HAVE_WCRTOMB
|
|
mbstate_t shift_state;
|
|
|
|
memset(&shift_state, 0, sizeof(shift_state));
|
|
#else
|
|
/* Clear the shift state before starting. */
|
|
wctomb(NULL, L'\0');
|
|
#endif
|
|
/*
|
|
* Allocate buffer for MBS.
|
|
* We need this allocation here since it is possible that
|
|
* as->s is still NULL.
|
|
*/
|
|
if (archive_string_ensure(as, as->length + len + 1) == NULL)
|
|
return (-1);
|
|
|
|
p = as->s + as->length;
|
|
end = as->s + as->buffer_length - MB_CUR_MAX -1;
|
|
while (*w != L'\0' && len > 0) {
|
|
if (p >= end) {
|
|
as->length = p - as->s;
|
|
as->s[as->length] = '\0';
|
|
/* Re-allocate buffer for MBS. */
|
|
if (archive_string_ensure(as,
|
|
as->length + len * 2 + 1) == NULL)
|
|
return (-1);
|
|
p = as->s + as->length;
|
|
end = as->s + as->buffer_length - MB_CUR_MAX -1;
|
|
}
|
|
#if HAVE_WCRTOMB
|
|
n = wcrtomb(p, *w++, &shift_state);
|
|
#else
|
|
n = wctomb(p, *w++);
|
|
#endif
|
|
if (n == -1) {
|
|
if (errno == EILSEQ) {
|
|
/* Skip an illegal wide char. */
|
|
*p++ = '?';
|
|
ret_val = -1;
|
|
} else {
|
|
ret_val = -1;
|
|
break;
|
|
}
|
|
} else
|
|
p += n;
|
|
len--;
|
|
}
|
|
as->length = p - as->s;
|
|
as->s[as->length] = '\0';
|
|
return (ret_val);
|
|
}
|
|
|
|
#else /* HAVE_WCTOMB || HAVE_WCRTOMB */
|
|
|
|
/*
|
|
* TODO: Test if __STDC_ISO_10646__ is defined.
|
|
* Non-Windows uses ISO C wcrtomb() or wctomb() to perform the conversion
|
|
* one character at a time. If a non-Windows platform doesn't have
|
|
* either of these, fall back to the built-in UTF8 conversion.
|
|
*/
|
|
int
|
|
archive_string_append_from_wcs(struct archive_string *as,
|
|
const wchar_t *w, size_t len)
|
|
{
|
|
(void)as;/* UNUSED */
|
|
(void)w;/* UNUSED */
|
|
(void)len;/* UNUSED */
|
|
errno = ENOSYS;
|
|
return (-1);
|
|
}
|
|
|
|
#endif /* HAVE_WCTOMB || HAVE_WCRTOMB */
|
|
|
|
/*
|
|
* Find a string conversion object by a pair of 'from' charset name
|
|
* and 'to' charset name from an archive object.
|
|
* Return NULL if not found.
|
|
*/
|
|
static struct archive_string_conv *
|
|
find_sconv_object(struct archive *a, const char *fc, const char *tc)
|
|
{
|
|
struct archive_string_conv *sc;
|
|
|
|
if (a == NULL)
|
|
return (NULL);
|
|
|
|
for (sc = a->sconv; sc != NULL; sc = sc->next) {
|
|
if (strcmp(sc->from_charset, fc) == 0 &&
|
|
strcmp(sc->to_charset, tc) == 0)
|
|
break;
|
|
}
|
|
return (sc);
|
|
}
|
|
|
|
/*
|
|
* Register a string object to an archive object.
|
|
*/
|
|
static void
|
|
add_sconv_object(struct archive *a, struct archive_string_conv *sc)
|
|
{
|
|
struct archive_string_conv **psc;
|
|
|
|
/* Add a new sconv to sconv list. */
|
|
psc = &(a->sconv);
|
|
while (*psc != NULL)
|
|
psc = &((*psc)->next);
|
|
*psc = sc;
|
|
}
|
|
|
|
static void
|
|
add_converter(struct archive_string_conv *sc, int (*converter)
|
|
(struct archive_string *, const void *, size_t,
|
|
struct archive_string_conv *))
|
|
{
|
|
if (sc == NULL || sc->nconverter >= 2)
|
|
__archive_errx(1, "Programing error");
|
|
sc->converter[sc->nconverter++] = converter;
|
|
}
|
|
|
|
static void
|
|
setup_converter(struct archive_string_conv *sc)
|
|
{
|
|
|
|
/* Reset. */
|
|
sc->nconverter = 0;
|
|
|
|
/*
|
|
* Perform special sequence for the incorrect UTF-8 filenames
|
|
* made by libarchive2.x.
|
|
*/
|
|
if (sc->flag & SCONV_UTF8_LIBARCHIVE_2) {
|
|
add_converter(sc, strncat_from_utf8_libarchive2);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Convert a string to UTF-16BE/LE.
|
|
*/
|
|
if (sc->flag & SCONV_TO_UTF16) {
|
|
/*
|
|
* If the current locale is UTF-8, we can translate
|
|
* a UTF-8 string into a UTF-16BE string.
|
|
*/
|
|
if (sc->flag & SCONV_FROM_UTF8) {
|
|
add_converter(sc, archive_string_append_unicode);
|
|
return;
|
|
}
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
if (sc->flag & SCONV_WIN_CP) {
|
|
if (sc->flag & SCONV_TO_UTF16BE)
|
|
add_converter(sc, win_strncat_to_utf16be);
|
|
else
|
|
add_converter(sc, win_strncat_to_utf16le);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#if defined(HAVE_ICONV)
|
|
if (sc->cd != (iconv_t)-1) {
|
|
add_converter(sc, iconv_strncat_in_locale);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
if (sc->flag & SCONV_BEST_EFFORT) {
|
|
if (sc->flag & SCONV_TO_UTF16BE)
|
|
add_converter(sc,
|
|
best_effort_strncat_to_utf16be);
|
|
else
|
|
add_converter(sc,
|
|
best_effort_strncat_to_utf16le);
|
|
} else
|
|
/* Make sure we have no converter. */
|
|
sc->nconverter = 0;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Convert a string from UTF-16BE/LE.
|
|
*/
|
|
if (sc->flag & SCONV_FROM_UTF16) {
|
|
/*
|
|
* At least we should normalize a UTF-16BE string.
|
|
*/
|
|
if (sc->flag & SCONV_NORMALIZATION_D)
|
|
add_converter(sc,archive_string_normalize_D);
|
|
else if (sc->flag & SCONV_NORMALIZATION_C)
|
|
add_converter(sc, archive_string_normalize_C);
|
|
|
|
if (sc->flag & SCONV_TO_UTF8) {
|
|
/*
|
|
* If the current locale is UTF-8, we can translate
|
|
* a UTF-16BE/LE string into a UTF-8 string directly.
|
|
*/
|
|
if (!(sc->flag &
|
|
(SCONV_NORMALIZATION_D |SCONV_NORMALIZATION_C)))
|
|
add_converter(sc,
|
|
archive_string_append_unicode);
|
|
return;
|
|
}
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
if (sc->flag & SCONV_WIN_CP) {
|
|
if (sc->flag & SCONV_FROM_UTF16BE)
|
|
add_converter(sc, win_strncat_from_utf16be);
|
|
else
|
|
add_converter(sc, win_strncat_from_utf16le);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#if defined(HAVE_ICONV)
|
|
if (sc->cd != (iconv_t)-1) {
|
|
add_converter(sc, iconv_strncat_in_locale);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
if ((sc->flag & (SCONV_BEST_EFFORT | SCONV_FROM_UTF16BE))
|
|
== (SCONV_BEST_EFFORT | SCONV_FROM_UTF16BE))
|
|
add_converter(sc, best_effort_strncat_from_utf16be);
|
|
else if ((sc->flag & (SCONV_BEST_EFFORT | SCONV_FROM_UTF16LE))
|
|
== (SCONV_BEST_EFFORT | SCONV_FROM_UTF16LE))
|
|
add_converter(sc, best_effort_strncat_from_utf16le);
|
|
else
|
|
/* Make sure we have no converter. */
|
|
sc->nconverter = 0;
|
|
return;
|
|
}
|
|
|
|
if (sc->flag & SCONV_FROM_UTF8) {
|
|
/*
|
|
* At least we should normalize a UTF-8 string.
|
|
*/
|
|
if (sc->flag & SCONV_NORMALIZATION_D)
|
|
add_converter(sc,archive_string_normalize_D);
|
|
else if (sc->flag & SCONV_NORMALIZATION_C)
|
|
add_converter(sc, archive_string_normalize_C);
|
|
|
|
/*
|
|
* Copy UTF-8 string with a check of CESU-8.
|
|
* Apparently, iconv does not check surrogate pairs in UTF-8
|
|
* when both from-charset and to-charset are UTF-8, and then
|
|
* we use our UTF-8 copy code.
|
|
*/
|
|
if (sc->flag & SCONV_TO_UTF8) {
|
|
/*
|
|
* If the current locale is UTF-8, we can translate
|
|
* a UTF-16BE string into a UTF-8 string directly.
|
|
*/
|
|
if (!(sc->flag &
|
|
(SCONV_NORMALIZATION_D |SCONV_NORMALIZATION_C)))
|
|
add_converter(sc, strncat_from_utf8_to_utf8);
|
|
return;
|
|
}
|
|
}
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
/*
|
|
* On Windows we can use Windows API for a string conversion.
|
|
*/
|
|
if (sc->flag & SCONV_WIN_CP) {
|
|
add_converter(sc, strncat_in_codepage);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_ICONV
|
|
if (sc->cd != (iconv_t)-1) {
|
|
add_converter(sc, iconv_strncat_in_locale);
|
|
/*
|
|
* iconv generally does not support UTF-8-MAC and so
|
|
* we have to the output of iconv from NFC to NFD if
|
|
* need.
|
|
*/
|
|
if ((sc->flag & SCONV_FROM_CHARSET) &&
|
|
(sc->flag & SCONV_TO_UTF8)) {
|
|
if (sc->flag & SCONV_NORMALIZATION_D)
|
|
add_converter(sc, archive_string_normalize_D);
|
|
}
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Try conversion in the best effort or no conversion.
|
|
*/
|
|
if ((sc->flag & SCONV_BEST_EFFORT) || sc->same)
|
|
add_converter(sc, best_effort_strncat_in_locale);
|
|
else
|
|
/* Make sure we have no converter. */
|
|
sc->nconverter = 0;
|
|
}
|
|
|
|
/*
|
|
* Return canonicalized charset-name but this supports just UTF-8, UTF-16BE
|
|
* and CP932 which are referenced in create_sconv_object().
|
|
*/
|
|
static const char *
|
|
canonical_charset_name(const char *charset)
|
|
{
|
|
char cs[16];
|
|
char *p;
|
|
const char *s;
|
|
|
|
if (charset == NULL || charset[0] == '\0'
|
|
|| strlen(charset) > 15)
|
|
return (charset);
|
|
|
|
/* Copy name to uppercase. */
|
|
p = cs;
|
|
s = charset;
|
|
while (*s) {
|
|
char c = *s++;
|
|
if (c >= 'a' && c <= 'z')
|
|
c -= 'a' - 'A';
|
|
*p++ = c;
|
|
}
|
|
*p++ = '\0';
|
|
|
|
if (strcmp(cs, "UTF-8") == 0 ||
|
|
strcmp(cs, "UTF8") == 0)
|
|
return ("UTF-8");
|
|
if (strcmp(cs, "UTF-16BE") == 0 ||
|
|
strcmp(cs, "UTF16BE") == 0)
|
|
return ("UTF-16BE");
|
|
if (strcmp(cs, "UTF-16LE") == 0 ||
|
|
strcmp(cs, "UTF16LE") == 0)
|
|
return ("UTF-16LE");
|
|
if (strcmp(cs, "CP932") == 0)
|
|
return ("CP932");
|
|
return (charset);
|
|
}
|
|
|
|
/*
|
|
* Create a string conversion object.
|
|
*/
|
|
static struct archive_string_conv *
|
|
create_sconv_object(const char *fc, const char *tc,
|
|
unsigned current_codepage, int flag)
|
|
{
|
|
struct archive_string_conv *sc;
|
|
|
|
sc = calloc(1, sizeof(*sc));
|
|
if (sc == NULL)
|
|
return (NULL);
|
|
sc->next = NULL;
|
|
sc->from_charset = strdup(fc);
|
|
if (sc->from_charset == NULL) {
|
|
free(sc);
|
|
return (NULL);
|
|
}
|
|
sc->to_charset = strdup(tc);
|
|
if (sc->to_charset == NULL) {
|
|
free(sc->from_charset);
|
|
free(sc);
|
|
return (NULL);
|
|
}
|
|
archive_string_init(&sc->utftmp);
|
|
|
|
if (flag & SCONV_TO_CHARSET) {
|
|
/*
|
|
* Convert characters from the current locale charset to
|
|
* a specified charset.
|
|
*/
|
|
sc->from_cp = current_codepage;
|
|
sc->to_cp = make_codepage_from_charset(tc);
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
if (IsValidCodePage(sc->to_cp))
|
|
flag |= SCONV_WIN_CP;
|
|
#endif
|
|
} else if (flag & SCONV_FROM_CHARSET) {
|
|
/*
|
|
* Convert characters from a specified charset to
|
|
* the current locale charset.
|
|
*/
|
|
sc->to_cp = current_codepage;
|
|
sc->from_cp = make_codepage_from_charset(fc);
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
if (IsValidCodePage(sc->from_cp))
|
|
flag |= SCONV_WIN_CP;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Check if "from charset" and "to charset" are the same.
|
|
*/
|
|
if (strcmp(fc, tc) == 0 ||
|
|
(sc->from_cp != (unsigned)-1 && sc->from_cp == sc->to_cp))
|
|
sc->same = 1;
|
|
else
|
|
sc->same = 0;
|
|
|
|
/*
|
|
* Mark if "from charset" or "to charset" are UTF-8 or UTF-16BE/LE.
|
|
*/
|
|
if (strcmp(tc, "UTF-8") == 0)
|
|
flag |= SCONV_TO_UTF8;
|
|
else if (strcmp(tc, "UTF-16BE") == 0)
|
|
flag |= SCONV_TO_UTF16BE;
|
|
else if (strcmp(tc, "UTF-16LE") == 0)
|
|
flag |= SCONV_TO_UTF16LE;
|
|
if (strcmp(fc, "UTF-8") == 0)
|
|
flag |= SCONV_FROM_UTF8;
|
|
else if (strcmp(fc, "UTF-16BE") == 0)
|
|
flag |= SCONV_FROM_UTF16BE;
|
|
else if (strcmp(fc, "UTF-16LE") == 0)
|
|
flag |= SCONV_FROM_UTF16LE;
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
if (sc->to_cp == CP_UTF8)
|
|
flag |= SCONV_TO_UTF8;
|
|
else if (sc->to_cp == CP_UTF16BE)
|
|
flag |= SCONV_TO_UTF16BE | SCONV_WIN_CP;
|
|
else if (sc->to_cp == CP_UTF16LE)
|
|
flag |= SCONV_TO_UTF16LE | SCONV_WIN_CP;
|
|
if (sc->from_cp == CP_UTF8)
|
|
flag |= SCONV_FROM_UTF8;
|
|
else if (sc->from_cp == CP_UTF16BE)
|
|
flag |= SCONV_FROM_UTF16BE | SCONV_WIN_CP;
|
|
else if (sc->from_cp == CP_UTF16LE)
|
|
flag |= SCONV_FROM_UTF16LE | SCONV_WIN_CP;
|
|
#endif
|
|
|
|
/*
|
|
* Set a flag for Unicode NFD. Usually iconv cannot correctly
|
|
* handle it. So we have to translate NFD characters to NFC ones
|
|
* ourselves before iconv handles. Another reason is to prevent
|
|
* that the same sight of two filenames, one is NFC and other
|
|
* is NFD, would be in its directory.
|
|
* On Mac OS X, although its filesystem layer automatically
|
|
* convert filenames to NFD, it would be useful for filename
|
|
* comparing to find out the same filenames that we normalize
|
|
* that to be NFD ourselves.
|
|
*/
|
|
if ((flag & SCONV_FROM_CHARSET) &&
|
|
(flag & (SCONV_FROM_UTF16 | SCONV_FROM_UTF8))) {
|
|
#if defined(__APPLE__)
|
|
if (flag & SCONV_TO_UTF8)
|
|
flag |= SCONV_NORMALIZATION_D;
|
|
else
|
|
#endif
|
|
flag |= SCONV_NORMALIZATION_C;
|
|
}
|
|
#if defined(__APPLE__)
|
|
/*
|
|
* In case writing an archive file, make sure that a filename
|
|
* going to be passed to iconv is a Unicode NFC string since
|
|
* a filename in HFS Plus filesystem is a Unicode NFD one and
|
|
* iconv cannot handle it with "UTF-8" charset. It is simpler
|
|
* than a use of "UTF-8-MAC" charset.
|
|
*/
|
|
if ((flag & SCONV_TO_CHARSET) &&
|
|
(flag & (SCONV_FROM_UTF16 | SCONV_FROM_UTF8)) &&
|
|
!(flag & (SCONV_TO_UTF16 | SCONV_TO_UTF8)))
|
|
flag |= SCONV_NORMALIZATION_C;
|
|
/*
|
|
* In case reading an archive file. make sure that a filename
|
|
* will be passed to users is a Unicode NFD string in order to
|
|
* correctly compare the filename with other one which comes
|
|
* from HFS Plus filesystem.
|
|
*/
|
|
if ((flag & SCONV_FROM_CHARSET) &&
|
|
!(flag & (SCONV_FROM_UTF16 | SCONV_FROM_UTF8)) &&
|
|
(flag & SCONV_TO_UTF8))
|
|
flag |= SCONV_NORMALIZATION_D;
|
|
#endif
|
|
|
|
#if defined(HAVE_ICONV)
|
|
sc->cd_w = (iconv_t)-1;
|
|
/*
|
|
* Create an iconv object.
|
|
*/
|
|
if (((flag & (SCONV_TO_UTF8 | SCONV_TO_UTF16)) &&
|
|
(flag & (SCONV_FROM_UTF8 | SCONV_FROM_UTF16))) ||
|
|
(flag & SCONV_WIN_CP)) {
|
|
/* This case we won't use iconv. */
|
|
sc->cd = (iconv_t)-1;
|
|
} else {
|
|
sc->cd = iconv_open(tc, fc);
|
|
if (sc->cd == (iconv_t)-1 && (sc->flag & SCONV_BEST_EFFORT)) {
|
|
/*
|
|
* Unfortunately, all of iconv implements do support
|
|
* "CP932" character-set, so we should use "SJIS"
|
|
* instead if iconv_open failed.
|
|
*/
|
|
if (strcmp(tc, "CP932") == 0)
|
|
sc->cd = iconv_open("SJIS", fc);
|
|
else if (strcmp(fc, "CP932") == 0)
|
|
sc->cd = iconv_open(tc, "SJIS");
|
|
}
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
/*
|
|
* archive_mstring on Windows directly convert multi-bytes
|
|
* into archive_wstring in order not to depend on locale
|
|
* so that you can do a I18N programming. This will be
|
|
* used only in archive_mstring_copy_mbs_len_l so far.
|
|
*/
|
|
if (flag & SCONV_FROM_CHARSET) {
|
|
sc->cd_w = iconv_open("UTF-8", fc);
|
|
if (sc->cd_w == (iconv_t)-1 &&
|
|
(sc->flag & SCONV_BEST_EFFORT)) {
|
|
if (strcmp(fc, "CP932") == 0)
|
|
sc->cd_w = iconv_open("UTF-8", "SJIS");
|
|
}
|
|
}
|
|
#endif /* _WIN32 && !__CYGWIN__ */
|
|
}
|
|
#endif /* HAVE_ICONV */
|
|
|
|
sc->flag = flag;
|
|
|
|
/*
|
|
* Set up converters.
|
|
*/
|
|
setup_converter(sc);
|
|
|
|
return (sc);
|
|
}
|
|
|
|
/*
|
|
* Free a string conversion object.
|
|
*/
|
|
static void
|
|
free_sconv_object(struct archive_string_conv *sc)
|
|
{
|
|
free(sc->from_charset);
|
|
free(sc->to_charset);
|
|
archive_string_free(&sc->utftmp);
|
|
#if HAVE_ICONV
|
|
if (sc->cd != (iconv_t)-1)
|
|
iconv_close(sc->cd);
|
|
if (sc->cd_w != (iconv_t)-1)
|
|
iconv_close(sc->cd_w);
|
|
#endif
|
|
free(sc);
|
|
}
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
static unsigned
|
|
my_atoi(const char *p)
|
|
{
|
|
unsigned cp;
|
|
|
|
cp = 0;
|
|
while (*p) {
|
|
if (*p >= '0' && *p <= '9')
|
|
cp = cp * 10 + (*p - '0');
|
|
else
|
|
return (-1);
|
|
p++;
|
|
}
|
|
return (cp);
|
|
}
|
|
|
|
/*
|
|
* Translate Charset name (as used by iconv) into CodePage (as used by Windows)
|
|
* Return -1 if failed.
|
|
*
|
|
* Note: This translation code may be insufficient.
|
|
*/
|
|
static struct charset {
|
|
const char *name;
|
|
unsigned cp;
|
|
} charsets[] = {
|
|
/* MUST BE SORTED! */
|
|
{"ASCII", 1252},
|
|
{"ASMO-708", 708},
|
|
{"BIG5", 950},
|
|
{"CHINESE", 936},
|
|
{"CP367", 1252},
|
|
{"CP819", 1252},
|
|
{"CP1025", 21025},
|
|
{"DOS-720", 720},
|
|
{"DOS-862", 862},
|
|
{"EUC-CN", 51936},
|
|
{"EUC-JP", 51932},
|
|
{"EUC-KR", 949},
|
|
{"EUCCN", 51936},
|
|
{"EUCJP", 51932},
|
|
{"EUCKR", 949},
|
|
{"GB18030", 54936},
|
|
{"GB2312", 936},
|
|
{"HEBREW", 1255},
|
|
{"HZ-GB-2312", 52936},
|
|
{"IBM273", 20273},
|
|
{"IBM277", 20277},
|
|
{"IBM278", 20278},
|
|
{"IBM280", 20280},
|
|
{"IBM284", 20284},
|
|
{"IBM285", 20285},
|
|
{"IBM290", 20290},
|
|
{"IBM297", 20297},
|
|
{"IBM367", 1252},
|
|
{"IBM420", 20420},
|
|
{"IBM423", 20423},
|
|
{"IBM424", 20424},
|
|
{"IBM819", 1252},
|
|
{"IBM871", 20871},
|
|
{"IBM880", 20880},
|
|
{"IBM905", 20905},
|
|
{"IBM924", 20924},
|
|
{"ISO-8859-1", 28591},
|
|
{"ISO-8859-13", 28603},
|
|
{"ISO-8859-15", 28605},
|
|
{"ISO-8859-2", 28592},
|
|
{"ISO-8859-3", 28593},
|
|
{"ISO-8859-4", 28594},
|
|
{"ISO-8859-5", 28595},
|
|
{"ISO-8859-6", 28596},
|
|
{"ISO-8859-7", 28597},
|
|
{"ISO-8859-8", 28598},
|
|
{"ISO-8859-9", 28599},
|
|
{"ISO8859-1", 28591},
|
|
{"ISO8859-13", 28603},
|
|
{"ISO8859-15", 28605},
|
|
{"ISO8859-2", 28592},
|
|
{"ISO8859-3", 28593},
|
|
{"ISO8859-4", 28594},
|
|
{"ISO8859-5", 28595},
|
|
{"ISO8859-6", 28596},
|
|
{"ISO8859-7", 28597},
|
|
{"ISO8859-8", 28598},
|
|
{"ISO8859-9", 28599},
|
|
{"JOHAB", 1361},
|
|
{"KOI8-R", 20866},
|
|
{"KOI8-U", 21866},
|
|
{"KS_C_5601-1987", 949},
|
|
{"LATIN1", 1252},
|
|
{"LATIN2", 28592},
|
|
{"MACINTOSH", 10000},
|
|
{"SHIFT-JIS", 932},
|
|
{"SHIFT_JIS", 932},
|
|
{"SJIS", 932},
|
|
{"US", 1252},
|
|
{"US-ASCII", 1252},
|
|
{"UTF-16", 1200},
|
|
{"UTF-16BE", 1201},
|
|
{"UTF-16LE", 1200},
|
|
{"UTF-8", CP_UTF8},
|
|
{"X-EUROPA", 29001},
|
|
{"X-MAC-ARABIC", 10004},
|
|
{"X-MAC-CE", 10029},
|
|
{"X-MAC-CHINESEIMP", 10008},
|
|
{"X-MAC-CHINESETRAD", 10002},
|
|
{"X-MAC-CROATIAN", 10082},
|
|
{"X-MAC-CYRILLIC", 10007},
|
|
{"X-MAC-GREEK", 10006},
|
|
{"X-MAC-HEBREW", 10005},
|
|
{"X-MAC-ICELANDIC", 10079},
|
|
{"X-MAC-JAPANESE", 10001},
|
|
{"X-MAC-KOREAN", 10003},
|
|
{"X-MAC-ROMANIAN", 10010},
|
|
{"X-MAC-THAI", 10021},
|
|
{"X-MAC-TURKISH", 10081},
|
|
{"X-MAC-UKRAINIAN", 10017},
|
|
};
|
|
static unsigned
|
|
make_codepage_from_charset(const char *charset)
|
|
{
|
|
char cs[16];
|
|
char *p;
|
|
unsigned cp;
|
|
int a, b;
|
|
|
|
if (charset == NULL || strlen(charset) > 15)
|
|
return -1;
|
|
|
|
/* Copy name to uppercase. */
|
|
p = cs;
|
|
while (*charset) {
|
|
char c = *charset++;
|
|
if (c >= 'a' && c <= 'z')
|
|
c -= 'a' - 'A';
|
|
*p++ = c;
|
|
}
|
|
*p++ = '\0';
|
|
cp = -1;
|
|
|
|
/* Look it up in the table first, so that we can easily
|
|
* override CP367, which we map to 1252 instead of 367. */
|
|
a = 0;
|
|
b = sizeof(charsets)/sizeof(charsets[0]);
|
|
while (b > a) {
|
|
int c = (b + a) / 2;
|
|
int r = strcmp(charsets[c].name, cs);
|
|
if (r < 0)
|
|
a = c + 1;
|
|
else if (r > 0)
|
|
b = c;
|
|
else
|
|
return charsets[c].cp;
|
|
}
|
|
|
|
/* If it's not in the table, try to parse it. */
|
|
switch (*cs) {
|
|
case 'C':
|
|
if (cs[1] == 'P' && cs[2] >= '0' && cs[2] <= '9') {
|
|
cp = my_atoi(cs + 2);
|
|
} else if (strcmp(cs, "CP_ACP") == 0)
|
|
cp = get_current_codepage();
|
|
else if (strcmp(cs, "CP_OEMCP") == 0)
|
|
cp = get_current_oemcp();
|
|
break;
|
|
case 'I':
|
|
if (cs[1] == 'B' && cs[2] == 'M' &&
|
|
cs[3] >= '0' && cs[3] <= '9') {
|
|
cp = my_atoi(cs + 3);
|
|
}
|
|
break;
|
|
case 'W':
|
|
if (strncmp(cs, "WINDOWS-", 8) == 0) {
|
|
cp = my_atoi(cs + 8);
|
|
if (cp != 874 && (cp < 1250 || cp > 1258))
|
|
cp = -1;/* This may invalid code. */
|
|
}
|
|
break;
|
|
}
|
|
return (cp);
|
|
}
|
|
|
|
/*
|
|
* Return ANSI Code Page of current locale set by setlocale().
|
|
*/
|
|
static unsigned
|
|
get_current_codepage(void)
|
|
{
|
|
char *locale, *p;
|
|
unsigned cp;
|
|
|
|
locale = setlocale(LC_CTYPE, NULL);
|
|
if (locale == NULL)
|
|
return (GetACP());
|
|
if (locale[0] == 'C' && locale[1] == '\0')
|
|
return (CP_C_LOCALE);
|
|
p = strrchr(locale, '.');
|
|
if (p == NULL)
|
|
return (GetACP());
|
|
cp = my_atoi(p+1);
|
|
if (cp <= 0)
|
|
return (GetACP());
|
|
return (cp);
|
|
}
|
|
|
|
/*
|
|
* Translation table between Locale Name and ACP/OEMCP.
|
|
*/
|
|
static struct {
|
|
unsigned acp;
|
|
unsigned ocp;
|
|
const char *locale;
|
|
} acp_ocp_map[] = {
|
|
{ 950, 950, "Chinese_Taiwan" },
|
|
{ 936, 936, "Chinese_People's Republic of China" },
|
|
{ 950, 950, "Chinese_Taiwan" },
|
|
{ 1250, 852, "Czech_Czech Republic" },
|
|
{ 1252, 850, "Danish_Denmark" },
|
|
{ 1252, 850, "Dutch_Netherlands" },
|
|
{ 1252, 850, "Dutch_Belgium" },
|
|
{ 1252, 437, "English_United States" },
|
|
{ 1252, 850, "English_Australia" },
|
|
{ 1252, 850, "English_Canada" },
|
|
{ 1252, 850, "English_New Zealand" },
|
|
{ 1252, 850, "English_United Kingdom" },
|
|
{ 1252, 437, "English_United States" },
|
|
{ 1252, 850, "Finnish_Finland" },
|
|
{ 1252, 850, "French_France" },
|
|
{ 1252, 850, "French_Belgium" },
|
|
{ 1252, 850, "French_Canada" },
|
|
{ 1252, 850, "French_Switzerland" },
|
|
{ 1252, 850, "German_Germany" },
|
|
{ 1252, 850, "German_Austria" },
|
|
{ 1252, 850, "German_Switzerland" },
|
|
{ 1253, 737, "Greek_Greece" },
|
|
{ 1250, 852, "Hungarian_Hungary" },
|
|
{ 1252, 850, "Icelandic_Iceland" },
|
|
{ 1252, 850, "Italian_Italy" },
|
|
{ 1252, 850, "Italian_Switzerland" },
|
|
{ 932, 932, "Japanese_Japan" },
|
|
{ 949, 949, "Korean_Korea" },
|
|
{ 1252, 850, "Norwegian (BokmOl)_Norway" },
|
|
{ 1252, 850, "Norwegian (BokmOl)_Norway" },
|
|
{ 1252, 850, "Norwegian-Nynorsk_Norway" },
|
|
{ 1250, 852, "Polish_Poland" },
|
|
{ 1252, 850, "Portuguese_Portugal" },
|
|
{ 1252, 850, "Portuguese_Brazil" },
|
|
{ 1251, 866, "Russian_Russia" },
|
|
{ 1250, 852, "Slovak_Slovakia" },
|
|
{ 1252, 850, "Spanish_Spain" },
|
|
{ 1252, 850, "Spanish_Mexico" },
|
|
{ 1252, 850, "Spanish_Spain" },
|
|
{ 1252, 850, "Swedish_Sweden" },
|
|
{ 1254, 857, "Turkish_Turkey" },
|
|
{ 0, 0, NULL}
|
|
};
|
|
|
|
/*
|
|
* Return OEM Code Page of current locale set by setlocale().
|
|
*/
|
|
static unsigned
|
|
get_current_oemcp(void)
|
|
{
|
|
int i;
|
|
char *locale, *p;
|
|
size_t len;
|
|
|
|
locale = setlocale(LC_CTYPE, NULL);
|
|
if (locale == NULL)
|
|
return (GetOEMCP());
|
|
if (locale[0] == 'C' && locale[1] == '\0')
|
|
return (CP_C_LOCALE);
|
|
|
|
p = strrchr(locale, '.');
|
|
if (p == NULL)
|
|
return (GetOEMCP());
|
|
len = p - locale;
|
|
for (i = 0; acp_ocp_map[i].acp; i++) {
|
|
if (strncmp(acp_ocp_map[i].locale, locale, len) == 0)
|
|
return (acp_ocp_map[i].ocp);
|
|
}
|
|
return (GetOEMCP());
|
|
}
|
|
#else
|
|
|
|
/*
|
|
* POSIX platform does not use CodePage.
|
|
*/
|
|
|
|
static unsigned
|
|
get_current_codepage(void)
|
|
{
|
|
return (-1);/* Unknown */
|
|
}
|
|
static unsigned
|
|
make_codepage_from_charset(const char *charset)
|
|
{
|
|
(void)charset; /* UNUSED */
|
|
return (-1);/* Unknown */
|
|
}
|
|
static unsigned
|
|
get_current_oemcp(void)
|
|
{
|
|
return (-1);/* Unknown */
|
|
}
|
|
|
|
#endif /* defined(_WIN32) && !defined(__CYGWIN__) */
|
|
|
|
/*
|
|
* Return a string conversion object.
|
|
*/
|
|
static struct archive_string_conv *
|
|
get_sconv_object(struct archive *a, const char *fc, const char *tc, int flag)
|
|
{
|
|
struct archive_string_conv *sc;
|
|
unsigned current_codepage;
|
|
|
|
/* Check if we have made the sconv object. */
|
|
sc = find_sconv_object(a, fc, tc);
|
|
if (sc != NULL)
|
|
return (sc);
|
|
|
|
if (a == NULL)
|
|
current_codepage = get_current_codepage();
|
|
else
|
|
current_codepage = a->current_codepage;
|
|
|
|
sc = create_sconv_object(canonical_charset_name(fc),
|
|
canonical_charset_name(tc), current_codepage, flag);
|
|
if (sc == NULL) {
|
|
if (a != NULL)
|
|
archive_set_error(a, ENOMEM,
|
|
"Could not allocate memory for "
|
|
"a string conversion object");
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* If there is no converter for current string conversion object,
|
|
* we cannot handle this conversion.
|
|
*/
|
|
if (sc->nconverter == 0) {
|
|
if (a != NULL) {
|
|
#if HAVE_ICONV
|
|
archive_set_error(a, ARCHIVE_ERRNO_MISC,
|
|
"iconv_open failed : Cannot handle ``%s''",
|
|
(flag & SCONV_TO_CHARSET)?tc:fc);
|
|
#else
|
|
archive_set_error(a, ARCHIVE_ERRNO_MISC,
|
|
"A character-set conversion not fully supported "
|
|
"on this platform");
|
|
#endif
|
|
}
|
|
/* Failed; free a sconv object. */
|
|
free_sconv_object(sc);
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Success!
|
|
*/
|
|
if (a != NULL)
|
|
add_sconv_object(a, sc);
|
|
return (sc);
|
|
}
|
|
|
|
static const char *
|
|
get_current_charset(struct archive *a)
|
|
{
|
|
const char *cur_charset;
|
|
|
|
if (a == NULL)
|
|
cur_charset = default_iconv_charset("");
|
|
else {
|
|
cur_charset = default_iconv_charset(a->current_code);
|
|
if (a->current_code == NULL) {
|
|
a->current_code = strdup(cur_charset);
|
|
a->current_codepage = get_current_codepage();
|
|
a->current_oemcp = get_current_oemcp();
|
|
}
|
|
}
|
|
return (cur_charset);
|
|
}
|
|
|
|
/*
|
|
* Make and Return a string conversion object.
|
|
* Return NULL if the platform does not support the specified conversion
|
|
* and best_effort is 0.
|
|
* If best_effort is set, A string conversion object must be returned
|
|
* unless memory allocation for the object fails, but the conversion
|
|
* might fail when non-ASCII code is found.
|
|
*/
|
|
struct archive_string_conv *
|
|
archive_string_conversion_to_charset(struct archive *a, const char *charset,
|
|
int best_effort)
|
|
{
|
|
int flag = SCONV_TO_CHARSET;
|
|
|
|
if (best_effort)
|
|
flag |= SCONV_BEST_EFFORT;
|
|
return (get_sconv_object(a, get_current_charset(a), charset, flag));
|
|
}
|
|
|
|
struct archive_string_conv *
|
|
archive_string_conversion_from_charset(struct archive *a, const char *charset,
|
|
int best_effort)
|
|
{
|
|
int flag = SCONV_FROM_CHARSET;
|
|
|
|
if (best_effort)
|
|
flag |= SCONV_BEST_EFFORT;
|
|
return (get_sconv_object(a, charset, get_current_charset(a), flag));
|
|
}
|
|
|
|
/*
|
|
* archive_string_default_conversion_*_archive() are provided for Windows
|
|
* platform because other archiver application use CP_OEMCP for
|
|
* MultiByteToWideChar() and WideCharToMultiByte() for the filenames
|
|
* in tar or zip files. But mbstowcs/wcstombs(CRT) usually use CP_ACP
|
|
* unless you use setlocale(LC_ALL, ".OCP")(specify CP_OEMCP).
|
|
* So we should make a string conversion between CP_ACP and CP_OEMCP
|
|
* for compatibility.
|
|
*/
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
struct archive_string_conv *
|
|
archive_string_default_conversion_for_read(struct archive *a)
|
|
{
|
|
const char *cur_charset = get_current_charset(a);
|
|
char oemcp[16];
|
|
|
|
/* NOTE: a check of cur_charset is unneeded but we need
|
|
* that get_current_charset() has been surely called at
|
|
* this time whatever C compiler optimized. */
|
|
if (cur_charset != NULL &&
|
|
(a->current_codepage == CP_C_LOCALE ||
|
|
a->current_codepage == a->current_oemcp))
|
|
return (NULL);/* no conversion. */
|
|
|
|
_snprintf(oemcp, sizeof(oemcp)-1, "CP%d", a->current_oemcp);
|
|
/* Make sure a null termination must be set. */
|
|
oemcp[sizeof(oemcp)-1] = '\0';
|
|
return (get_sconv_object(a, oemcp, cur_charset,
|
|
SCONV_FROM_CHARSET));
|
|
}
|
|
|
|
struct archive_string_conv *
|
|
archive_string_default_conversion_for_write(struct archive *a)
|
|
{
|
|
const char *cur_charset = get_current_charset(a);
|
|
char oemcp[16];
|
|
|
|
/* NOTE: a check of cur_charset is unneeded but we need
|
|
* that get_current_charset() has been surely called at
|
|
* this time whatever C compiler optimized. */
|
|
if (cur_charset != NULL &&
|
|
(a->current_codepage == CP_C_LOCALE ||
|
|
a->current_codepage == a->current_oemcp))
|
|
return (NULL);/* no conversion. */
|
|
|
|
_snprintf(oemcp, sizeof(oemcp)-1, "CP%d", a->current_oemcp);
|
|
/* Make sure a null termination must be set. */
|
|
oemcp[sizeof(oemcp)-1] = '\0';
|
|
return (get_sconv_object(a, cur_charset, oemcp,
|
|
SCONV_TO_CHARSET));
|
|
}
|
|
#else
|
|
struct archive_string_conv *
|
|
archive_string_default_conversion_for_read(struct archive *a)
|
|
{
|
|
(void)a; /* UNUSED */
|
|
return (NULL);
|
|
}
|
|
|
|
struct archive_string_conv *
|
|
archive_string_default_conversion_for_write(struct archive *a)
|
|
{
|
|
(void)a; /* UNUSED */
|
|
return (NULL);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Dispose of all character conversion objects in the archive object.
|
|
*/
|
|
void
|
|
archive_string_conversion_free(struct archive *a)
|
|
{
|
|
struct archive_string_conv *sc;
|
|
struct archive_string_conv *sc_next;
|
|
|
|
for (sc = a->sconv; sc != NULL; sc = sc_next) {
|
|
sc_next = sc->next;
|
|
free_sconv_object(sc);
|
|
}
|
|
a->sconv = NULL;
|
|
free(a->current_code);
|
|
a->current_code = NULL;
|
|
}
|
|
|
|
/*
|
|
* Return a conversion charset name.
|
|
*/
|
|
const char *
|
|
archive_string_conversion_charset_name(struct archive_string_conv *sc)
|
|
{
|
|
if (sc->flag & SCONV_TO_CHARSET)
|
|
return (sc->to_charset);
|
|
else
|
|
return (sc->from_charset);
|
|
}
|
|
|
|
/*
|
|
* Change the behavior of a string conversion.
|
|
*/
|
|
void
|
|
archive_string_conversion_set_opt(struct archive_string_conv *sc, int opt)
|
|
{
|
|
switch (opt) {
|
|
/*
|
|
* A filename in UTF-8 was made with libarchive 2.x in a wrong
|
|
* assumption that wchar_t was Unicode.
|
|
* This option enables simulating the assumption in order to read
|
|
* that filename correctly.
|
|
*/
|
|
case SCONV_SET_OPT_UTF8_LIBARCHIVE2X:
|
|
#if (defined(_WIN32) && !defined(__CYGWIN__)) \
|
|
|| defined(__STDC_ISO_10646__) || defined(__APPLE__)
|
|
/*
|
|
* Nothing to do for it since wchar_t on these platforms
|
|
* is really Unicode.
|
|
*/
|
|
(void)sc; /* UNUSED */
|
|
#else
|
|
if ((sc->flag & SCONV_UTF8_LIBARCHIVE_2) == 0) {
|
|
sc->flag |= SCONV_UTF8_LIBARCHIVE_2;
|
|
/* Set up string converters. */
|
|
setup_converter(sc);
|
|
}
|
|
#endif
|
|
break;
|
|
case SCONV_SET_OPT_NORMALIZATION_C:
|
|
if ((sc->flag & SCONV_NORMALIZATION_C) == 0) {
|
|
sc->flag |= SCONV_NORMALIZATION_C;
|
|
sc->flag &= ~SCONV_NORMALIZATION_D;
|
|
/* Set up string converters. */
|
|
setup_converter(sc);
|
|
}
|
|
break;
|
|
case SCONV_SET_OPT_NORMALIZATION_D:
|
|
#if defined(HAVE_ICONV)
|
|
/*
|
|
* If iconv will take the string, do not change the
|
|
* setting of the normalization.
|
|
*/
|
|
if (!(sc->flag & SCONV_WIN_CP) &&
|
|
(sc->flag & (SCONV_FROM_UTF16 | SCONV_FROM_UTF8)) &&
|
|
!(sc->flag & (SCONV_TO_UTF16 | SCONV_TO_UTF8)))
|
|
break;
|
|
#endif
|
|
if ((sc->flag & SCONV_NORMALIZATION_D) == 0) {
|
|
sc->flag |= SCONV_NORMALIZATION_D;
|
|
sc->flag &= ~SCONV_NORMALIZATION_C;
|
|
/* Set up string converters. */
|
|
setup_converter(sc);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
*
|
|
* Copy one archive_string to another in locale conversion.
|
|
*
|
|
* archive_strncat_l();
|
|
* archive_strncpy_l();
|
|
*
|
|
*/
|
|
|
|
static size_t
|
|
mbsnbytes(const void *_p, size_t n)
|
|
{
|
|
size_t s;
|
|
const char *p, *pp;
|
|
|
|
if (_p == NULL)
|
|
return (0);
|
|
p = (const char *)_p;
|
|
|
|
/* Like strlen(p), except won't examine positions beyond p[n]. */
|
|
s = 0;
|
|
pp = p;
|
|
while (s < n && *pp) {
|
|
pp++;
|
|
s++;
|
|
}
|
|
return (s);
|
|
}
|
|
|
|
static size_t
|
|
utf16nbytes(const void *_p, size_t n)
|
|
{
|
|
size_t s;
|
|
const char *p, *pp;
|
|
|
|
if (_p == NULL)
|
|
return (0);
|
|
p = (const char *)_p;
|
|
|
|
/* Like strlen(p), except won't examine positions beyond p[n]. */
|
|
s = 0;
|
|
pp = p;
|
|
n >>= 1;
|
|
while (s < n && (pp[0] || pp[1])) {
|
|
pp += 2;
|
|
s++;
|
|
}
|
|
return (s<<1);
|
|
}
|
|
|
|
int
|
|
archive_strncpy_l(struct archive_string *as, const void *_p, size_t n,
|
|
struct archive_string_conv *sc)
|
|
{
|
|
as->length = 0;
|
|
return (archive_strncat_l(as, _p, n, sc));
|
|
}
|
|
|
|
int
|
|
archive_strncat_l(struct archive_string *as, const void *_p, size_t n,
|
|
struct archive_string_conv *sc)
|
|
{
|
|
const void *s;
|
|
size_t length = 0;
|
|
int i, r = 0, r2;
|
|
|
|
if (_p != NULL && n > 0) {
|
|
if (sc != NULL && (sc->flag & SCONV_FROM_UTF16))
|
|
length = utf16nbytes(_p, n);
|
|
else
|
|
length = mbsnbytes(_p, n);
|
|
}
|
|
|
|
/* We must allocate memory even if there is no data for conversion
|
|
* or copy. This simulates archive_string_append behavior. */
|
|
if (length == 0) {
|
|
int tn = 1;
|
|
if (sc != NULL && (sc->flag & SCONV_TO_UTF16))
|
|
tn = 2;
|
|
if (archive_string_ensure(as, as->length + tn) == NULL)
|
|
return (-1);
|
|
as->s[as->length] = 0;
|
|
if (tn == 2)
|
|
as->s[as->length+1] = 0;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* If sc is NULL, we just make a copy.
|
|
*/
|
|
if (sc == NULL) {
|
|
if (archive_string_append(as, _p, length) == NULL)
|
|
return (-1);/* No memory */
|
|
return (0);
|
|
}
|
|
|
|
s = _p;
|
|
i = 0;
|
|
if (sc->nconverter > 1) {
|
|
sc->utftmp.length = 0;
|
|
r2 = sc->converter[0](&(sc->utftmp), s, length, sc);
|
|
if (r2 != 0 && errno == ENOMEM)
|
|
return (r2);
|
|
if (r > r2)
|
|
r = r2;
|
|
s = sc->utftmp.s;
|
|
length = sc->utftmp.length;
|
|
++i;
|
|
}
|
|
r2 = sc->converter[i](as, s, length, sc);
|
|
if (r > r2)
|
|
r = r2;
|
|
return (r);
|
|
}
|
|
|
|
#if HAVE_ICONV
|
|
|
|
/*
|
|
* Return -1 if conversion fails.
|
|
*/
|
|
static int
|
|
iconv_strncat_in_locale(struct archive_string *as, const void *_p,
|
|
size_t length, struct archive_string_conv *sc)
|
|
{
|
|
ICONV_CONST char *itp;
|
|
size_t remaining;
|
|
iconv_t cd;
|
|
char *outp;
|
|
size_t avail, bs;
|
|
int return_value = 0; /* success */
|
|
int to_size, from_size;
|
|
|
|
if (sc->flag & SCONV_TO_UTF16)
|
|
to_size = 2;
|
|
else
|
|
to_size = 1;
|
|
if (sc->flag & SCONV_FROM_UTF16)
|
|
from_size = 2;
|
|
else
|
|
from_size = 1;
|
|
|
|
if (archive_string_ensure(as, as->length + length*2+to_size) == NULL)
|
|
return (-1);
|
|
|
|
cd = sc->cd;
|
|
itp = (char *)(uintptr_t)_p;
|
|
remaining = length;
|
|
outp = as->s + as->length;
|
|
avail = as->buffer_length - as->length - to_size;
|
|
while (remaining >= (size_t)from_size) {
|
|
size_t result = iconv(cd, &itp, &remaining, &outp, &avail);
|
|
|
|
if (result != (size_t)-1)
|
|
break; /* Conversion completed. */
|
|
|
|
if (errno == EILSEQ || errno == EINVAL) {
|
|
/*
|
|
* If an output charset is UTF-8 or UTF-16BE/LE,
|
|
* unknown character should be U+FFFD
|
|
* (replacement character).
|
|
*/
|
|
if (sc->flag & (SCONV_TO_UTF8 | SCONV_TO_UTF16)) {
|
|
size_t rbytes;
|
|
if (sc->flag & SCONV_TO_UTF8)
|
|
rbytes = sizeof(utf8_replacement_char);
|
|
else
|
|
rbytes = 2;
|
|
|
|
if (avail < rbytes) {
|
|
as->length = outp - as->s;
|
|
bs = as->buffer_length +
|
|
(remaining * to_size) + rbytes;
|
|
if (NULL ==
|
|
archive_string_ensure(as, bs))
|
|
return (-1);
|
|
outp = as->s + as->length;
|
|
avail = as->buffer_length
|
|
- as->length - to_size;
|
|
}
|
|
if (sc->flag & SCONV_TO_UTF8)
|
|
memcpy(outp, utf8_replacement_char, sizeof(utf8_replacement_char));
|
|
else if (sc->flag & SCONV_TO_UTF16BE)
|
|
archive_be16enc(outp, UNICODE_R_CHAR);
|
|
else
|
|
archive_le16enc(outp, UNICODE_R_CHAR);
|
|
outp += rbytes;
|
|
avail -= rbytes;
|
|
} else {
|
|
/* Skip the illegal input bytes. */
|
|
*outp++ = '?';
|
|
avail--;
|
|
}
|
|
itp += from_size;
|
|
remaining -= from_size;
|
|
return_value = -1; /* failure */
|
|
} else {
|
|
/* E2BIG no output buffer,
|
|
* Increase an output buffer. */
|
|
as->length = outp - as->s;
|
|
bs = as->buffer_length + remaining * 2;
|
|
if (NULL == archive_string_ensure(as, bs))
|
|
return (-1);
|
|
outp = as->s + as->length;
|
|
avail = as->buffer_length - as->length - to_size;
|
|
}
|
|
}
|
|
as->length = outp - as->s;
|
|
as->s[as->length] = 0;
|
|
if (to_size == 2)
|
|
as->s[as->length+1] = 0;
|
|
return (return_value);
|
|
}
|
|
|
|
#endif /* HAVE_ICONV */
|
|
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
|
|
/*
|
|
* Translate a string from a some CodePage to an another CodePage by
|
|
* Windows APIs, and copy the result. Return -1 if conversion fails.
|
|
*/
|
|
static int
|
|
strncat_in_codepage(struct archive_string *as,
|
|
const void *_p, size_t length, struct archive_string_conv *sc)
|
|
{
|
|
const char *s = (const char *)_p;
|
|
struct archive_wstring aws;
|
|
size_t l;
|
|
int r, saved_flag;
|
|
|
|
archive_string_init(&aws);
|
|
saved_flag = sc->flag;
|
|
sc->flag &= ~(SCONV_NORMALIZATION_D | SCONV_NORMALIZATION_C);
|
|
r = archive_wstring_append_from_mbs_in_codepage(&aws, s, length, sc);
|
|
sc->flag = saved_flag;
|
|
if (r != 0) {
|
|
archive_wstring_free(&aws);
|
|
if (errno != ENOMEM)
|
|
archive_string_append(as, s, length);
|
|
return (-1);
|
|
}
|
|
|
|
l = as->length;
|
|
r = archive_string_append_from_wcs_in_codepage(
|
|
as, aws.s, aws.length, sc);
|
|
if (r != 0 && errno != ENOMEM && l == as->length)
|
|
archive_string_append(as, s, length);
|
|
archive_wstring_free(&aws);
|
|
return (r);
|
|
}
|
|
|
|
/*
|
|
* Test whether MBS ==> WCS is okay.
|
|
*/
|
|
static int
|
|
invalid_mbs(const void *_p, size_t n, struct archive_string_conv *sc)
|
|
{
|
|
const char *p = (const char *)_p;
|
|
unsigned codepage;
|
|
DWORD mbflag = MB_ERR_INVALID_CHARS;
|
|
|
|
if (sc->flag & SCONV_FROM_CHARSET)
|
|
codepage = sc->to_cp;
|
|
else
|
|
codepage = sc->from_cp;
|
|
|
|
if (codepage == CP_C_LOCALE)
|
|
return (0);
|
|
if (codepage != CP_UTF8)
|
|
mbflag |= MB_PRECOMPOSED;
|
|
|
|
if (MultiByteToWideChar(codepage, mbflag, p, (int)n, NULL, 0) == 0)
|
|
return (-1); /* Invalid */
|
|
return (0); /* Okay */
|
|
}
|
|
|
|
#else
|
|
|
|
/*
|
|
* Test whether MBS ==> WCS is okay.
|
|
*/
|
|
static int
|
|
invalid_mbs(const void *_p, size_t n, struct archive_string_conv *sc)
|
|
{
|
|
const char *p = (const char *)_p;
|
|
size_t r;
|
|
|
|
#if HAVE_MBRTOWC
|
|
mbstate_t shift_state;
|
|
|
|
memset(&shift_state, 0, sizeof(shift_state));
|
|
#else
|
|
/* Clear the shift state before starting. */
|
|
mbtowc(NULL, NULL, 0);
|
|
#endif
|
|
while (n) {
|
|
wchar_t wc;
|
|
|
|
#if HAVE_MBRTOWC
|
|
r = mbrtowc(&wc, p, n, &shift_state);
|
|
#else
|
|
r = mbtowc(&wc, p, n);
|
|
#endif
|
|
if (r == (size_t)-1 || r == (size_t)-2)
|
|
return (-1);/* Invalid. */
|
|
if (r == 0)
|
|
break;
|
|
p += r;
|
|
n -= r;
|
|
}
|
|
(void)sc; /* UNUSED */
|
|
return (0); /* All Okey. */
|
|
}
|
|
|
|
#endif /* defined(_WIN32) && !defined(__CYGWIN__) */
|
|
|
|
/*
|
|
* Basically returns -1 because we cannot make a conversion of charset
|
|
* without iconv but in some cases this would return 0.
|
|
* Returns 0 if all copied characters are ASCII.
|
|
* Returns 0 if both from-locale and to-locale are the same and those
|
|
* can be WCS with no error.
|
|
*/
|
|
static int
|
|
best_effort_strncat_in_locale(struct archive_string *as, const void *_p,
|
|
size_t length, struct archive_string_conv *sc)
|
|
{
|
|
size_t remaining;
|
|
const uint8_t *itp;
|
|
int return_value = 0; /* success */
|
|
|
|
/*
|
|
* If both from-locale and to-locale is the same, this makes a copy.
|
|
* And then this checks all copied MBS can be WCS if so returns 0.
|
|
*/
|
|
if (sc->same) {
|
|
if (archive_string_append(as, _p, length) == NULL)
|
|
return (-1);/* No memory */
|
|
return (invalid_mbs(_p, length, sc));
|
|
}
|
|
|
|
/*
|
|
* If a character is ASCII, this just copies it. If not, this
|
|
* assigns '?' character instead but in UTF-8 locale this assigns
|
|
* byte sequence 0xEF 0xBD 0xBD, which are code point U+FFFD,
|
|
* a Replacement Character in Unicode.
|
|
*/
|
|
|
|
remaining = length;
|
|
itp = (const uint8_t *)_p;
|
|
while (*itp && remaining > 0) {
|
|
if (*itp > 127) {
|
|
// Non-ASCII: Substitute with suitable replacement
|
|
if (sc->flag & SCONV_TO_UTF8) {
|
|
if (archive_string_append(as, utf8_replacement_char, sizeof(utf8_replacement_char)) == NULL) {
|
|
__archive_errx(1, "Out of memory");
|
|
}
|
|
} else {
|
|
archive_strappend_char(as, '?');
|
|
}
|
|
return_value = -1;
|
|
} else {
|
|
archive_strappend_char(as, *itp);
|
|
}
|
|
++itp;
|
|
}
|
|
return (return_value);
|
|
}
|
|
|
|
|
|
/*
|
|
* Unicode conversion functions.
|
|
* - UTF-8 <===> UTF-8 in removing surrogate pairs.
|
|
* - UTF-8 NFD ===> UTF-8 NFC in removing surrogate pairs.
|
|
* - UTF-8 made by libarchive 2.x ===> UTF-8.
|
|
* - UTF-16BE <===> UTF-8.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Utility to convert a single UTF-8 sequence.
|
|
*
|
|
* Usually return used bytes, return used byte in negative value when
|
|
* a unicode character is replaced with U+FFFD.
|
|
* See also http://unicode.org/review/pr-121.html Public Review Issue #121
|
|
* Recommended Practice for Replacement Characters.
|
|
*/
|
|
static int
|
|
_utf8_to_unicode(uint32_t *pwc, const char *s, size_t n)
|
|
{
|
|
static const char utf8_count[256] = {
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 00 - 0F */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 10 - 1F */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 20 - 2F */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 30 - 3F */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 40 - 4F */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 50 - 5F */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 60 - 6F */
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 70 - 7F */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 80 - 8F */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 90 - 9F */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* A0 - AF */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* B0 - BF */
|
|
0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,/* C0 - CF */
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,/* D0 - DF */
|
|
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,/* E0 - EF */
|
|
4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* F0 - FF */
|
|
};
|
|
int ch, i;
|
|
int cnt;
|
|
uint32_t wc;
|
|
|
|
/* Sanity check. */
|
|
if (n == 0)
|
|
return (0);
|
|
/*
|
|
* Decode 1-4 bytes depending on the value of the first byte.
|
|
*/
|
|
ch = (unsigned char)*s;
|
|
if (ch == 0)
|
|
return (0); /* Standard: return 0 for end-of-string. */
|
|
cnt = utf8_count[ch];
|
|
|
|
/* Invalid sequence or there are not plenty bytes. */
|
|
if ((int)n < cnt) {
|
|
cnt = (int)n;
|
|
for (i = 1; i < cnt; i++) {
|
|
if ((s[i] & 0xc0) != 0x80) {
|
|
cnt = i;
|
|
break;
|
|
}
|
|
}
|
|
goto invalid_sequence;
|
|
}
|
|
|
|
/* Make a Unicode code point from a single UTF-8 sequence. */
|
|
switch (cnt) {
|
|
case 1: /* 1 byte sequence. */
|
|
*pwc = ch & 0x7f;
|
|
return (cnt);
|
|
case 2: /* 2 bytes sequence. */
|
|
if ((s[1] & 0xc0) != 0x80) {
|
|
cnt = 1;
|
|
goto invalid_sequence;
|
|
}
|
|
*pwc = ((ch & 0x1f) << 6) | (s[1] & 0x3f);
|
|
return (cnt);
|
|
case 3: /* 3 bytes sequence. */
|
|
if ((s[1] & 0xc0) != 0x80) {
|
|
cnt = 1;
|
|
goto invalid_sequence;
|
|
}
|
|
if ((s[2] & 0xc0) != 0x80) {
|
|
cnt = 2;
|
|
goto invalid_sequence;
|
|
}
|
|
wc = ((ch & 0x0f) << 12)
|
|
| ((s[1] & 0x3f) << 6)
|
|
| (s[2] & 0x3f);
|
|
if (wc < 0x800)
|
|
goto invalid_sequence;/* Overlong sequence. */
|
|
break;
|
|
case 4: /* 4 bytes sequence. */
|
|
if ((s[1] & 0xc0) != 0x80) {
|
|
cnt = 1;
|
|
goto invalid_sequence;
|
|
}
|
|
if ((s[2] & 0xc0) != 0x80) {
|
|
cnt = 2;
|
|
goto invalid_sequence;
|
|
}
|
|
if ((s[3] & 0xc0) != 0x80) {
|
|
cnt = 3;
|
|
goto invalid_sequence;
|
|
}
|
|
wc = ((ch & 0x07) << 18)
|
|
| ((s[1] & 0x3f) << 12)
|
|
| ((s[2] & 0x3f) << 6)
|
|
| (s[3] & 0x3f);
|
|
if (wc < 0x10000)
|
|
goto invalid_sequence;/* Overlong sequence. */
|
|
break;
|
|
default: /* Others are all invalid sequence. */
|
|
if (ch == 0xc0 || ch == 0xc1)
|
|
cnt = 2;
|
|
else if (ch >= 0xf5 && ch <= 0xf7)
|
|
cnt = 4;
|
|
else if (ch >= 0xf8 && ch <= 0xfb)
|
|
cnt = 5;
|
|
else if (ch == 0xfc || ch == 0xfd)
|
|
cnt = 6;
|
|
else
|
|
cnt = 1;
|
|
if ((int)n < cnt)
|
|
cnt = (int)n;
|
|
for (i = 1; i < cnt; i++) {
|
|
if ((s[i] & 0xc0) != 0x80) {
|
|
cnt = i;
|
|
break;
|
|
}
|
|
}
|
|
goto invalid_sequence;
|
|
}
|
|
|
|
/* The code point larger than 0x10FFFF is not legal
|
|
* Unicode values. */
|
|
if (wc > UNICODE_MAX)
|
|
goto invalid_sequence;
|
|
/* Correctly gets a Unicode, returns used bytes. */
|
|
*pwc = wc;
|
|
return (cnt);
|
|
invalid_sequence:
|
|
*pwc = UNICODE_R_CHAR;/* set the Replacement Character instead. */
|
|
return (cnt * -1);
|
|
}
|
|
|
|
static int
|
|
utf8_to_unicode(uint32_t *pwc, const char *s, size_t n)
|
|
{
|
|
int cnt;
|
|
|
|
cnt = _utf8_to_unicode(pwc, s, n);
|
|
/* Any of Surrogate pair is not legal Unicode values. */
|
|
if (cnt == 3 && IS_SURROGATE_PAIR_LA(*pwc))
|
|
return (-3);
|
|
return (cnt);
|
|
}
|
|
|
|
static inline uint32_t
|
|
combine_surrogate_pair(uint32_t uc, uint32_t uc2)
|
|
{
|
|
uc -= 0xD800;
|
|
uc *= 0x400;
|
|
uc += uc2 - 0xDC00;
|
|
uc += 0x10000;
|
|
return (uc);
|
|
}
|
|
|
|
/*
|
|
* Convert a single UTF-8/CESU-8 sequence to a Unicode code point in
|
|
* removing surrogate pairs.
|
|
*
|
|
* CESU-8: The Compatibility Encoding Scheme for UTF-16.
|
|
*
|
|
* Usually return used bytes, return used byte in negative value when
|
|
* a unicode character is replaced with U+FFFD.
|
|
*/
|
|
static int
|
|
cesu8_to_unicode(uint32_t *pwc, const char *s, size_t n)
|
|
{
|
|
uint32_t wc = 0;
|
|
int cnt;
|
|
|
|
cnt = _utf8_to_unicode(&wc, s, n);
|
|
if (cnt == 3 && IS_HIGH_SURROGATE_LA(wc)) {
|
|
uint32_t wc2 = 0;
|
|
if (n - 3 < 3) {
|
|
/* Invalid byte sequence. */
|
|
goto invalid_sequence;
|
|
}
|
|
cnt = _utf8_to_unicode(&wc2, s+3, n-3);
|
|
if (cnt != 3 || !IS_LOW_SURROGATE_LA(wc2)) {
|
|
/* Invalid byte sequence. */
|
|
goto invalid_sequence;
|
|
}
|
|
wc = combine_surrogate_pair(wc, wc2);
|
|
cnt = 6;
|
|
} else if (cnt == 3 && IS_LOW_SURROGATE_LA(wc)) {
|
|
/* Invalid byte sequence. */
|
|
goto invalid_sequence;
|
|
}
|
|
*pwc = wc;
|
|
return (cnt);
|
|
invalid_sequence:
|
|
*pwc = UNICODE_R_CHAR;/* set the Replacement Character instead. */
|
|
if (cnt > 0)
|
|
cnt *= -1;
|
|
return (cnt);
|
|
}
|
|
|
|
/*
|
|
* Convert a Unicode code point to a single UTF-8 sequence.
|
|
*
|
|
* NOTE:This function does not check if the Unicode is legal or not.
|
|
* Please you definitely check it before calling this.
|
|
*/
|
|
static size_t
|
|
unicode_to_utf8(char *p, size_t remaining, uint32_t uc)
|
|
{
|
|
char *_p = p;
|
|
|
|
/* Invalid Unicode char maps to Replacement character */
|
|
if (uc > UNICODE_MAX)
|
|
uc = UNICODE_R_CHAR;
|
|
/* Translate code point to UTF8 */
|
|
if (uc <= 0x7f) {
|
|
if (remaining == 0)
|
|
return (0);
|
|
*p++ = (char)uc;
|
|
} else if (uc <= 0x7ff) {
|
|
if (remaining < 2)
|
|
return (0);
|
|
*p++ = 0xc0 | ((uc >> 6) & 0x1f);
|
|
*p++ = 0x80 | (uc & 0x3f);
|
|
} else if (uc <= 0xffff) {
|
|
if (remaining < 3)
|
|
return (0);
|
|
*p++ = 0xe0 | ((uc >> 12) & 0x0f);
|
|
*p++ = 0x80 | ((uc >> 6) & 0x3f);
|
|
*p++ = 0x80 | (uc & 0x3f);
|
|
} else {
|
|
if (remaining < 4)
|
|
return (0);
|
|
*p++ = 0xf0 | ((uc >> 18) & 0x07);
|
|
*p++ = 0x80 | ((uc >> 12) & 0x3f);
|
|
*p++ = 0x80 | ((uc >> 6) & 0x3f);
|
|
*p++ = 0x80 | (uc & 0x3f);
|
|
}
|
|
return (p - _p);
|
|
}
|
|
|
|
static int
|
|
utf16be_to_unicode(uint32_t *pwc, const char *s, size_t n)
|
|
{
|
|
return (utf16_to_unicode(pwc, s, n, 1));
|
|
}
|
|
|
|
static int
|
|
utf16le_to_unicode(uint32_t *pwc, const char *s, size_t n)
|
|
{
|
|
return (utf16_to_unicode(pwc, s, n, 0));
|
|
}
|
|
|
|
static int
|
|
utf16_to_unicode(uint32_t *pwc, const char *s, size_t n, int be)
|
|
{
|
|
const char *utf16 = s;
|
|
unsigned uc;
|
|
|
|
if (n == 0)
|
|
return (0);
|
|
if (n == 1) {
|
|
/* set the Replacement Character instead. */
|
|
*pwc = UNICODE_R_CHAR;
|
|
return (-1);
|
|
}
|
|
|
|
if (be)
|
|
uc = archive_be16dec(utf16);
|
|
else
|
|
uc = archive_le16dec(utf16);
|
|
utf16 += 2;
|
|
|
|
/* If this is a surrogate pair, assemble the full code point.*/
|
|
if (IS_HIGH_SURROGATE_LA(uc)) {
|
|
unsigned uc2;
|
|
|
|
if (n >= 4) {
|
|
if (be)
|
|
uc2 = archive_be16dec(utf16);
|
|
else
|
|
uc2 = archive_le16dec(utf16);
|
|
} else
|
|
uc2 = 0;
|
|
if (IS_LOW_SURROGATE_LA(uc2)) {
|
|
uc = combine_surrogate_pair(uc, uc2);
|
|
utf16 += 2;
|
|
} else {
|
|
/* Undescribed code point should be U+FFFD
|
|
* (replacement character). */
|
|
*pwc = UNICODE_R_CHAR;
|
|
return (-2);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Surrogate pair values(0xd800 through 0xdfff) are only
|
|
* used by UTF-16, so, after above calculation, the code
|
|
* must not be surrogate values, and Unicode has no codes
|
|
* larger than 0x10ffff. Thus, those are not legal Unicode
|
|
* values.
|
|
*/
|
|
if (IS_SURROGATE_PAIR_LA(uc) || uc > UNICODE_MAX) {
|
|
/* Undescribed code point should be U+FFFD
|
|
* (replacement character). */
|
|
*pwc = UNICODE_R_CHAR;
|
|
return (((int)(utf16 - s)) * -1);
|
|
}
|
|
*pwc = uc;
|
|
return ((int)(utf16 - s));
|
|
}
|
|
|
|
static size_t
|
|
unicode_to_utf16be(char *p, size_t remaining, uint32_t uc)
|
|
{
|
|
char *utf16 = p;
|
|
|
|
if (uc > 0xffff) {
|
|
/* We have a code point that won't fit into a
|
|
* wchar_t; convert it to a surrogate pair. */
|
|
if (remaining < 4)
|
|
return (0);
|
|
uc -= 0x10000;
|
|
archive_be16enc(utf16, ((uc >> 10) & 0x3ff) + 0xD800);
|
|
archive_be16enc(utf16+2, (uc & 0x3ff) + 0xDC00);
|
|
return (4);
|
|
} else {
|
|
if (remaining < 2)
|
|
return (0);
|
|
archive_be16enc(utf16, uc);
|
|
return (2);
|
|
}
|
|
}
|
|
|
|
static size_t
|
|
unicode_to_utf16le(char *p, size_t remaining, uint32_t uc)
|
|
{
|
|
char *utf16 = p;
|
|
|
|
if (uc > 0xffff) {
|
|
/* We have a code point that won't fit into a
|
|
* wchar_t; convert it to a surrogate pair. */
|
|
if (remaining < 4)
|
|
return (0);
|
|
uc -= 0x10000;
|
|
archive_le16enc(utf16, ((uc >> 10) & 0x3ff) + 0xD800);
|
|
archive_le16enc(utf16+2, (uc & 0x3ff) + 0xDC00);
|
|
return (4);
|
|
} else {
|
|
if (remaining < 2)
|
|
return (0);
|
|
archive_le16enc(utf16, uc);
|
|
return (2);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Copy UTF-8 string in checking surrogate pair.
|
|
* If any surrogate pair are found, it would be canonicalized.
|
|
*/
|
|
static int
|
|
strncat_from_utf8_to_utf8(struct archive_string *as, const void *_p,
|
|
size_t len, struct archive_string_conv *sc)
|
|
{
|
|
const char *s;
|
|
char *p, *endp;
|
|
int n, ret = 0;
|
|
|
|
(void)sc; /* UNUSED */
|
|
|
|
if (archive_string_ensure(as, as->length + len + 1) == NULL)
|
|
return (-1);
|
|
|
|
s = (const char *)_p;
|
|
p = as->s + as->length;
|
|
endp = as->s + as->buffer_length -1;
|
|
do {
|
|
uint32_t uc;
|
|
const char *ss = s;
|
|
size_t w;
|
|
|
|
/*
|
|
* Forward byte sequence until a conversion of that is needed.
|
|
*/
|
|
while ((n = utf8_to_unicode(&uc, s, len)) > 0) {
|
|
s += n;
|
|
len -= n;
|
|
}
|
|
if (ss < s) {
|
|
if (p + (s - ss) > endp) {
|
|
as->length = p - as->s;
|
|
if (archive_string_ensure(as,
|
|
as->buffer_length + len + 1) == NULL)
|
|
return (-1);
|
|
p = as->s + as->length;
|
|
endp = as->s + as->buffer_length -1;
|
|
}
|
|
|
|
memcpy(p, ss, s - ss);
|
|
p += s - ss;
|
|
}
|
|
|
|
/*
|
|
* If n is negative, current byte sequence needs a replacement.
|
|
*/
|
|
if (n < 0) {
|
|
if (n == -3 && IS_SURROGATE_PAIR_LA(uc)) {
|
|
/* Current byte sequence may be CESU-8. */
|
|
n = cesu8_to_unicode(&uc, s, len);
|
|
}
|
|
if (n < 0) {
|
|
ret = -1;
|
|
n *= -1;/* Use a replaced unicode character. */
|
|
}
|
|
|
|
/* Rebuild UTF-8 byte sequence. */
|
|
while ((w = unicode_to_utf8(p, endp - p, uc)) == 0) {
|
|
as->length = p - as->s;
|
|
if (archive_string_ensure(as,
|
|
as->buffer_length + len + 1) == NULL)
|
|
return (-1);
|
|
p = as->s + as->length;
|
|
endp = as->s + as->buffer_length -1;
|
|
}
|
|
p += w;
|
|
s += n;
|
|
len -= n;
|
|
}
|
|
} while (n > 0);
|
|
as->length = p - as->s;
|
|
as->s[as->length] = '\0';
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
archive_string_append_unicode(struct archive_string *as, const void *_p,
|
|
size_t len, struct archive_string_conv *sc)
|
|
{
|
|
const char *s;
|
|
char *p, *endp;
|
|
uint32_t uc;
|
|
size_t w;
|
|
int n, ret = 0, ts, tm;
|
|
int (*parse)(uint32_t *, const char *, size_t);
|
|
size_t (*unparse)(char *, size_t, uint32_t);
|
|
|
|
if (sc->flag & SCONV_TO_UTF16BE) {
|
|
unparse = unicode_to_utf16be;
|
|
ts = 2;
|
|
} else if (sc->flag & SCONV_TO_UTF16LE) {
|
|
unparse = unicode_to_utf16le;
|
|
ts = 2;
|
|
} else if (sc->flag & SCONV_TO_UTF8) {
|
|
unparse = unicode_to_utf8;
|
|
ts = 1;
|
|
} else {
|
|
/*
|
|
* This case is going to be converted to another
|
|
* character-set through iconv.
|
|
*/
|
|
if (sc->flag & SCONV_FROM_UTF16BE) {
|
|
unparse = unicode_to_utf16be;
|
|
ts = 2;
|
|
} else if (sc->flag & SCONV_FROM_UTF16LE) {
|
|
unparse = unicode_to_utf16le;
|
|
ts = 2;
|
|
} else {
|
|
unparse = unicode_to_utf8;
|
|
ts = 1;
|
|
}
|
|
}
|
|
|
|
if (sc->flag & SCONV_FROM_UTF16BE) {
|
|
parse = utf16be_to_unicode;
|
|
tm = 1;
|
|
} else if (sc->flag & SCONV_FROM_UTF16LE) {
|
|
parse = utf16le_to_unicode;
|
|
tm = 1;
|
|
} else {
|
|
parse = cesu8_to_unicode;
|
|
tm = ts;
|
|
}
|
|
|
|
if (archive_string_ensure(as, as->length + len * tm + ts) == NULL)
|
|
return (-1);
|
|
|
|
s = (const char *)_p;
|
|
p = as->s + as->length;
|
|
endp = as->s + as->buffer_length - ts;
|
|
while ((n = parse(&uc, s, len)) != 0) {
|
|
if (n < 0) {
|
|
/* Use a replaced unicode character. */
|
|
n *= -1;
|
|
ret = -1;
|
|
}
|
|
s += n;
|
|
len -= n;
|
|
while ((w = unparse(p, endp - p, uc)) == 0) {
|
|
/* There is not enough output buffer so
|
|
* we have to expand it. */
|
|
as->length = p - as->s;
|
|
if (archive_string_ensure(as,
|
|
as->buffer_length + len * tm + ts) == NULL)
|
|
return (-1);
|
|
p = as->s + as->length;
|
|
endp = as->s + as->buffer_length - ts;
|
|
}
|
|
p += w;
|
|
}
|
|
as->length = p - as->s;
|
|
as->s[as->length] = '\0';
|
|
if (ts == 2)
|
|
as->s[as->length+1] = '\0';
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Following Constants for Hangul compositions this information comes from
|
|
* Unicode Standard Annex #15 http://unicode.org/reports/tr15/
|
|
*/
|
|
#define HC_SBASE 0xAC00
|
|
#define HC_LBASE 0x1100
|
|
#define HC_VBASE 0x1161
|
|
#define HC_TBASE 0x11A7
|
|
#define HC_LCOUNT 19
|
|
#define HC_VCOUNT 21
|
|
#define HC_TCOUNT 28
|
|
#define HC_NCOUNT (HC_VCOUNT * HC_TCOUNT)
|
|
#define HC_SCOUNT (HC_LCOUNT * HC_NCOUNT)
|
|
|
|
static uint32_t
|
|
get_nfc(uint32_t uc, uint32_t uc2)
|
|
{
|
|
int t, b;
|
|
|
|
t = 0;
|
|
b = sizeof(u_composition_table)/sizeof(u_composition_table[0]) -1;
|
|
while (b >= t) {
|
|
int m = (t + b) / 2;
|
|
if (u_composition_table[m].cp1 < uc)
|
|
t = m + 1;
|
|
else if (u_composition_table[m].cp1 > uc)
|
|
b = m - 1;
|
|
else if (u_composition_table[m].cp2 < uc2)
|
|
t = m + 1;
|
|
else if (u_composition_table[m].cp2 > uc2)
|
|
b = m - 1;
|
|
else
|
|
return (u_composition_table[m].nfc);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
#define FDC_MAX 10 /* The maximum number of Following Decomposable
|
|
* Characters. */
|
|
|
|
/*
|
|
* Update first code point.
|
|
*/
|
|
#define UPDATE_UC(new_uc) do { \
|
|
uc = new_uc; \
|
|
ucptr = NULL; \
|
|
} while (0)
|
|
|
|
/*
|
|
* Replace first code point with second code point.
|
|
*/
|
|
#define REPLACE_UC_WITH_UC2() do { \
|
|
uc = uc2; \
|
|
ucptr = uc2ptr; \
|
|
n = n2; \
|
|
} while (0)
|
|
|
|
#define EXPAND_BUFFER() do { \
|
|
as->length = p - as->s; \
|
|
if (archive_string_ensure(as, \
|
|
as->buffer_length + len * tm + ts) == NULL)\
|
|
return (-1); \
|
|
p = as->s + as->length; \
|
|
endp = as->s + as->buffer_length - ts; \
|
|
} while (0)
|
|
|
|
#define UNPARSE(p, endp, uc) do { \
|
|
while ((w = unparse(p, (endp) - (p), uc)) == 0) {\
|
|
EXPAND_BUFFER(); \
|
|
} \
|
|
p += w; \
|
|
} while (0)
|
|
|
|
/*
|
|
* Write first code point.
|
|
* If the code point has not be changed from its original code,
|
|
* this just copies it from its original buffer pointer.
|
|
* If not, this converts it to UTF-8 byte sequence and copies it.
|
|
*/
|
|
#define WRITE_UC() do { \
|
|
if (ucptr) { \
|
|
if (p + n > endp) \
|
|
EXPAND_BUFFER(); \
|
|
switch (n) { \
|
|
case 4: \
|
|
*p++ = *ucptr++; \
|
|
/* FALL THROUGH */ \
|
|
case 3: \
|
|
*p++ = *ucptr++; \
|
|
/* FALL THROUGH */ \
|
|
case 2: \
|
|
*p++ = *ucptr++; \
|
|
/* FALL THROUGH */ \
|
|
case 1: \
|
|
*p++ = *ucptr; \
|
|
break; \
|
|
} \
|
|
ucptr = NULL; \
|
|
} else { \
|
|
UNPARSE(p, endp, uc); \
|
|
} \
|
|
} while (0)
|
|
|
|
/*
|
|
* Collect following decomposable code points.
|
|
*/
|
|
#define COLLECT_CPS(start) do { \
|
|
int _i; \
|
|
for (_i = start; _i < FDC_MAX ; _i++) { \
|
|
nx = parse(&ucx[_i], s, len); \
|
|
if (nx <= 0) \
|
|
break; \
|
|
cx = CCC(ucx[_i]); \
|
|
if (cl >= cx && cl != 228 && cx != 228)\
|
|
break; \
|
|
s += nx; \
|
|
len -= nx; \
|
|
cl = cx; \
|
|
ccx[_i] = cx; \
|
|
} \
|
|
if (_i >= FDC_MAX) { \
|
|
ret = -1; \
|
|
ucx_size = FDC_MAX; \
|
|
} else \
|
|
ucx_size = _i; \
|
|
} while (0)
|
|
|
|
/*
|
|
* Normalize UTF-8/UTF-16BE characters to Form C and copy the result.
|
|
*
|
|
* TODO: Convert composition exclusions, which are never converted
|
|
* from NFC,NFD,NFKC and NFKD, to Form C.
|
|
*/
|
|
static int
|
|
archive_string_normalize_C(struct archive_string *as, const void *_p,
|
|
size_t len, struct archive_string_conv *sc)
|
|
{
|
|
const char *s = (const char *)_p;
|
|
char *p, *endp;
|
|
uint32_t uc, uc2;
|
|
size_t w;
|
|
int always_replace, n, n2, ret = 0, spair, ts, tm;
|
|
int (*parse)(uint32_t *, const char *, size_t);
|
|
size_t (*unparse)(char *, size_t, uint32_t);
|
|
|
|
always_replace = 1;
|
|
ts = 1;/* text size. */
|
|
if (sc->flag & SCONV_TO_UTF16BE) {
|
|
unparse = unicode_to_utf16be;
|
|
ts = 2;
|
|
if (sc->flag & SCONV_FROM_UTF16BE)
|
|
always_replace = 0;
|
|
} else if (sc->flag & SCONV_TO_UTF16LE) {
|
|
unparse = unicode_to_utf16le;
|
|
ts = 2;
|
|
if (sc->flag & SCONV_FROM_UTF16LE)
|
|
always_replace = 0;
|
|
} else if (sc->flag & SCONV_TO_UTF8) {
|
|
unparse = unicode_to_utf8;
|
|
if (sc->flag & SCONV_FROM_UTF8)
|
|
always_replace = 0;
|
|
} else {
|
|
/*
|
|
* This case is going to be converted to another
|
|
* character-set through iconv.
|
|
*/
|
|
always_replace = 0;
|
|
if (sc->flag & SCONV_FROM_UTF16BE) {
|
|
unparse = unicode_to_utf16be;
|
|
ts = 2;
|
|
} else if (sc->flag & SCONV_FROM_UTF16LE) {
|
|
unparse = unicode_to_utf16le;
|
|
ts = 2;
|
|
} else {
|
|
unparse = unicode_to_utf8;
|
|
}
|
|
}
|
|
|
|
if (sc->flag & SCONV_FROM_UTF16BE) {
|
|
parse = utf16be_to_unicode;
|
|
tm = 1;
|
|
spair = 4;/* surrogate pair size in UTF-16. */
|
|
} else if (sc->flag & SCONV_FROM_UTF16LE) {
|
|
parse = utf16le_to_unicode;
|
|
tm = 1;
|
|
spair = 4;/* surrogate pair size in UTF-16. */
|
|
} else {
|
|
parse = cesu8_to_unicode;
|
|
tm = ts;
|
|
spair = 6;/* surrogate pair size in UTF-8. */
|
|
}
|
|
|
|
if (archive_string_ensure(as, as->length + len * tm + ts) == NULL)
|
|
return (-1);
|
|
|
|
p = as->s + as->length;
|
|
endp = as->s + as->buffer_length - ts;
|
|
while ((n = parse(&uc, s, len)) != 0) {
|
|
const char *ucptr, *uc2ptr;
|
|
|
|
if (n < 0) {
|
|
/* Use a replaced unicode character. */
|
|
UNPARSE(p, endp, uc);
|
|
s += n*-1;
|
|
len -= n*-1;
|
|
ret = -1;
|
|
continue;
|
|
} else if (n == spair || always_replace)
|
|
/* uc is converted from a surrogate pair.
|
|
* this should be treated as a changed code. */
|
|
ucptr = NULL;
|
|
else
|
|
ucptr = s;
|
|
s += n;
|
|
len -= n;
|
|
|
|
/* Read second code point. */
|
|
while ((n2 = parse(&uc2, s, len)) > 0) {
|
|
uint32_t ucx[FDC_MAX];
|
|
int ccx[FDC_MAX];
|
|
int cl, cx, i, nx, ucx_size;
|
|
int LIndex,SIndex;
|
|
uint32_t nfc;
|
|
|
|
if (n2 == spair || always_replace)
|
|
/* uc2 is converted from a surrogate pair.
|
|
* this should be treated as a changed code. */
|
|
uc2ptr = NULL;
|
|
else
|
|
uc2ptr = s;
|
|
s += n2;
|
|
len -= n2;
|
|
|
|
/*
|
|
* If current second code point is out of decomposable
|
|
* code points, finding compositions is unneeded.
|
|
*/
|
|
if (!IS_DECOMPOSABLE_BLOCK(uc2)) {
|
|
WRITE_UC();
|
|
REPLACE_UC_WITH_UC2();
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Try to combine current code points.
|
|
*/
|
|
/*
|
|
* We have to combine Hangul characters according to
|
|
* http://uniicode.org/reports/tr15/#Hangul
|
|
*/
|
|
if (0 <= (LIndex = uc - HC_LBASE) &&
|
|
LIndex < HC_LCOUNT) {
|
|
/*
|
|
* Hangul Composition.
|
|
* 1. Two current code points are L and V.
|
|
*/
|
|
int VIndex = uc2 - HC_VBASE;
|
|
if (0 <= VIndex && VIndex < HC_VCOUNT) {
|
|
/* Make syllable of form LV. */
|
|
UPDATE_UC(HC_SBASE +
|
|
(LIndex * HC_VCOUNT + VIndex) *
|
|
HC_TCOUNT);
|
|
} else {
|
|
WRITE_UC();
|
|
REPLACE_UC_WITH_UC2();
|
|
}
|
|
continue;
|
|
} else if (0 <= (SIndex = uc - HC_SBASE) &&
|
|
SIndex < HC_SCOUNT && (SIndex % HC_TCOUNT) == 0) {
|
|
/*
|
|
* Hangul Composition.
|
|
* 2. Two current code points are LV and T.
|
|
*/
|
|
int TIndex = uc2 - HC_TBASE;
|
|
if (0 < TIndex && TIndex < HC_TCOUNT) {
|
|
/* Make syllable of form LVT. */
|
|
UPDATE_UC(uc + TIndex);
|
|
} else {
|
|
WRITE_UC();
|
|
REPLACE_UC_WITH_UC2();
|
|
}
|
|
continue;
|
|
} else if ((nfc = get_nfc(uc, uc2)) != 0) {
|
|
/* A composition to current code points
|
|
* is found. */
|
|
UPDATE_UC(nfc);
|
|
continue;
|
|
} else if ((cl = CCC(uc2)) == 0) {
|
|
/* Clearly 'uc2' the second code point is not
|
|
* a decomposable code. */
|
|
WRITE_UC();
|
|
REPLACE_UC_WITH_UC2();
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Collect following decomposable code points.
|
|
*/
|
|
cx = 0;
|
|
ucx[0] = uc2;
|
|
ccx[0] = cl;
|
|
COLLECT_CPS(1);
|
|
|
|
/*
|
|
* Find a composed code in the collected code points.
|
|
*/
|
|
i = 1;
|
|
while (i < ucx_size) {
|
|
int j;
|
|
|
|
if ((nfc = get_nfc(uc, ucx[i])) == 0) {
|
|
i++;
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* nfc is composed of uc and ucx[i].
|
|
*/
|
|
UPDATE_UC(nfc);
|
|
|
|
/*
|
|
* Remove ucx[i] by shifting
|
|
* following code points.
|
|
*/
|
|
for (j = i; j+1 < ucx_size; j++) {
|
|
ucx[j] = ucx[j+1];
|
|
ccx[j] = ccx[j+1];
|
|
}
|
|
ucx_size --;
|
|
|
|
/*
|
|
* Collect following code points blocked
|
|
* by ucx[i] the removed code point.
|
|
*/
|
|
if (ucx_size > 0 && i == ucx_size &&
|
|
nx > 0 && cx == cl) {
|
|
cl = ccx[ucx_size-1];
|
|
COLLECT_CPS(ucx_size);
|
|
}
|
|
/*
|
|
* Restart finding a composed code with
|
|
* the updated uc from the top of the
|
|
* collected code points.
|
|
*/
|
|
i = 0;
|
|
}
|
|
|
|
/*
|
|
* Apparently the current code points are not
|
|
* decomposed characters or already composed.
|
|
*/
|
|
WRITE_UC();
|
|
for (i = 0; i < ucx_size; i++)
|
|
UNPARSE(p, endp, ucx[i]);
|
|
|
|
/*
|
|
* Flush out remaining canonical combining characters.
|
|
*/
|
|
if (nx > 0 && cx == cl && len > 0) {
|
|
while ((nx = parse(&ucx[0], s, len))
|
|
> 0) {
|
|
cx = CCC(ucx[0]);
|
|
if (cl > cx)
|
|
break;
|
|
s += nx;
|
|
len -= nx;
|
|
cl = cx;
|
|
UNPARSE(p, endp, ucx[0]);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
if (n2 < 0) {
|
|
WRITE_UC();
|
|
/* Use a replaced unicode character. */
|
|
UNPARSE(p, endp, uc2);
|
|
s += n2*-1;
|
|
len -= n2*-1;
|
|
ret = -1;
|
|
continue;
|
|
} else if (n2 == 0) {
|
|
WRITE_UC();
|
|
break;
|
|
}
|
|
}
|
|
as->length = p - as->s;
|
|
as->s[as->length] = '\0';
|
|
if (ts == 2)
|
|
as->s[as->length+1] = '\0';
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
get_nfd(uint32_t *cp1, uint32_t *cp2, uint32_t uc)
|
|
{
|
|
int t, b;
|
|
|
|
/*
|
|
* These are not converted to NFD on Mac OS.
|
|
*/
|
|
if ((uc >= 0x2000 && uc <= 0x2FFF) ||
|
|
(uc >= 0xF900 && uc <= 0xFAFF) ||
|
|
(uc >= 0x2F800 && uc <= 0x2FAFF))
|
|
return (0);
|
|
/*
|
|
* Those code points are not converted to NFD on Mac OS.
|
|
* I do not know the reason because it is undocumented.
|
|
* NFC NFD
|
|
* 1109A ==> 11099 110BA
|
|
* 1109C ==> 1109B 110BA
|
|
* 110AB ==> 110A5 110BA
|
|
*/
|
|
if (uc == 0x1109A || uc == 0x1109C || uc == 0x110AB)
|
|
return (0);
|
|
|
|
t = 0;
|
|
b = sizeof(u_decomposition_table)/sizeof(u_decomposition_table[0]) -1;
|
|
while (b >= t) {
|
|
int m = (t + b) / 2;
|
|
if (u_decomposition_table[m].nfc < uc)
|
|
t = m + 1;
|
|
else if (u_decomposition_table[m].nfc > uc)
|
|
b = m - 1;
|
|
else {
|
|
*cp1 = u_decomposition_table[m].cp1;
|
|
*cp2 = u_decomposition_table[m].cp2;
|
|
return (1);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
#define REPLACE_UC_WITH(cp) do { \
|
|
uc = cp; \
|
|
ucptr = NULL; \
|
|
} while (0)
|
|
|
|
/*
|
|
* Normalize UTF-8 characters to Form D and copy the result.
|
|
*/
|
|
static int
|
|
archive_string_normalize_D(struct archive_string *as, const void *_p,
|
|
size_t len, struct archive_string_conv *sc)
|
|
{
|
|
const char *s = (const char *)_p;
|
|
char *p, *endp;
|
|
uint32_t uc, uc2;
|
|
size_t w;
|
|
int always_replace, n, n2, ret = 0, spair, ts, tm;
|
|
int (*parse)(uint32_t *, const char *, size_t);
|
|
size_t (*unparse)(char *, size_t, uint32_t);
|
|
|
|
always_replace = 1;
|
|
ts = 1;/* text size. */
|
|
if (sc->flag & SCONV_TO_UTF16BE) {
|
|
unparse = unicode_to_utf16be;
|
|
ts = 2;
|
|
if (sc->flag & SCONV_FROM_UTF16BE)
|
|
always_replace = 0;
|
|
} else if (sc->flag & SCONV_TO_UTF16LE) {
|
|
unparse = unicode_to_utf16le;
|
|
ts = 2;
|
|
if (sc->flag & SCONV_FROM_UTF16LE)
|
|
always_replace = 0;
|
|
} else if (sc->flag & SCONV_TO_UTF8) {
|
|
unparse = unicode_to_utf8;
|
|
if (sc->flag & SCONV_FROM_UTF8)
|
|
always_replace = 0;
|
|
} else {
|
|
/*
|
|
* This case is going to be converted to another
|
|
* character-set through iconv.
|
|
*/
|
|
always_replace = 0;
|
|
if (sc->flag & SCONV_FROM_UTF16BE) {
|
|
unparse = unicode_to_utf16be;
|
|
ts = 2;
|
|
} else if (sc->flag & SCONV_FROM_UTF16LE) {
|
|
unparse = unicode_to_utf16le;
|
|
ts = 2;
|
|
} else {
|
|
unparse = unicode_to_utf8;
|
|
}
|
|
}
|
|
|
|
if (sc->flag & SCONV_FROM_UTF16BE) {
|
|
parse = utf16be_to_unicode;
|
|
tm = 1;
|
|
spair = 4;/* surrogate pair size in UTF-16. */
|
|
} else if (sc->flag & SCONV_FROM_UTF16LE) {
|
|
parse = utf16le_to_unicode;
|
|
tm = 1;
|
|
spair = 4;/* surrogate pair size in UTF-16. */
|
|
} else {
|
|
parse = cesu8_to_unicode;
|
|
tm = ts;
|
|
spair = 6;/* surrogate pair size in UTF-8. */
|
|
}
|
|
|
|
if (archive_string_ensure(as, as->length + len * tm + ts) == NULL)
|
|
return (-1);
|
|
|
|
p = as->s + as->length;
|
|
endp = as->s + as->buffer_length - ts;
|
|
while ((n = parse(&uc, s, len)) != 0) {
|
|
const char *ucptr;
|
|
uint32_t cp1, cp2;
|
|
int SIndex;
|
|
struct {
|
|
uint32_t uc;
|
|
int ccc;
|
|
} fdc[FDC_MAX];
|
|
int fdi, fdj;
|
|
int ccc;
|
|
|
|
check_first_code:
|
|
if (n < 0) {
|
|
/* Use a replaced unicode character. */
|
|
UNPARSE(p, endp, uc);
|
|
s += n*-1;
|
|
len -= n*-1;
|
|
ret = -1;
|
|
continue;
|
|
} else if (n == spair || always_replace)
|
|
/* uc is converted from a surrogate pair.
|
|
* this should be treated as a changed code. */
|
|
ucptr = NULL;
|
|
else
|
|
ucptr = s;
|
|
s += n;
|
|
len -= n;
|
|
|
|
/* Hangul Decomposition. */
|
|
if ((SIndex = uc - HC_SBASE) >= 0 && SIndex < HC_SCOUNT) {
|
|
int L = HC_LBASE + SIndex / HC_NCOUNT;
|
|
int V = HC_VBASE + (SIndex % HC_NCOUNT) / HC_TCOUNT;
|
|
int T = HC_TBASE + SIndex % HC_TCOUNT;
|
|
|
|
REPLACE_UC_WITH(L);
|
|
WRITE_UC();
|
|
REPLACE_UC_WITH(V);
|
|
WRITE_UC();
|
|
if (T != HC_TBASE) {
|
|
REPLACE_UC_WITH(T);
|
|
WRITE_UC();
|
|
}
|
|
continue;
|
|
}
|
|
if (IS_DECOMPOSABLE_BLOCK(uc) && CCC(uc) != 0) {
|
|
WRITE_UC();
|
|
continue;
|
|
}
|
|
|
|
fdi = 0;
|
|
while (get_nfd(&cp1, &cp2, uc) && fdi < FDC_MAX) {
|
|
int k;
|
|
|
|
for (k = fdi; k > 0; k--)
|
|
fdc[k] = fdc[k-1];
|
|
fdc[0].ccc = CCC(cp2);
|
|
fdc[0].uc = cp2;
|
|
fdi++;
|
|
REPLACE_UC_WITH(cp1);
|
|
}
|
|
|
|
/* Read following code points. */
|
|
while ((n2 = parse(&uc2, s, len)) > 0 &&
|
|
(ccc = CCC(uc2)) != 0 && fdi < FDC_MAX) {
|
|
int j, k;
|
|
|
|
s += n2;
|
|
len -= n2;
|
|
for (j = 0; j < fdi; j++) {
|
|
if (fdc[j].ccc > ccc)
|
|
break;
|
|
}
|
|
if (j < fdi) {
|
|
for (k = fdi; k > j; k--)
|
|
fdc[k] = fdc[k-1];
|
|
fdc[j].ccc = ccc;
|
|
fdc[j].uc = uc2;
|
|
} else {
|
|
fdc[fdi].ccc = ccc;
|
|
fdc[fdi].uc = uc2;
|
|
}
|
|
fdi++;
|
|
}
|
|
|
|
WRITE_UC();
|
|
for (fdj = 0; fdj < fdi; fdj++) {
|
|
REPLACE_UC_WITH(fdc[fdj].uc);
|
|
WRITE_UC();
|
|
}
|
|
|
|
if (n2 == 0)
|
|
break;
|
|
REPLACE_UC_WITH(uc2);
|
|
n = n2;
|
|
goto check_first_code;
|
|
}
|
|
as->length = p - as->s;
|
|
as->s[as->length] = '\0';
|
|
if (ts == 2)
|
|
as->s[as->length+1] = '\0';
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* libarchive 2.x made incorrect UTF-8 strings in the wrong assumption
|
|
* that WCS is Unicode. It is true for several platforms but some are false.
|
|
* And then people who did not use UTF-8 locale on the non Unicode WCS
|
|
* platform and made a tar file with libarchive(mostly bsdtar) 2.x. Those
|
|
* now cannot get right filename from libarchive 3.x and later since we
|
|
* fixed the wrong assumption and it is incompatible to older its versions.
|
|
* So we provide special option, "compat-2x.x", for resolving it.
|
|
* That option enable the string conversion of libarchive 2.x.
|
|
*
|
|
* Translates the wrong UTF-8 string made by libarchive 2.x into current
|
|
* locale character set and appends to the archive_string.
|
|
* Note: returns -1 if conversion fails.
|
|
*/
|
|
static int
|
|
strncat_from_utf8_libarchive2(struct archive_string *as,
|
|
const void *_p, size_t len, struct archive_string_conv *sc)
|
|
{
|
|
const char *s;
|
|
int n;
|
|
char *p;
|
|
char *end;
|
|
uint32_t unicode;
|
|
#if HAVE_WCRTOMB
|
|
mbstate_t shift_state;
|
|
|
|
memset(&shift_state, 0, sizeof(shift_state));
|
|
#else
|
|
/* Clear the shift state before starting. */
|
|
wctomb(NULL, L'\0');
|
|
#endif
|
|
(void)sc; /* UNUSED */
|
|
/*
|
|
* Allocate buffer for MBS.
|
|
* We need this allocation here since it is possible that
|
|
* as->s is still NULL.
|
|
*/
|
|
if (archive_string_ensure(as, as->length + len + 1) == NULL)
|
|
return (-1);
|
|
|
|
s = (const char *)_p;
|
|
p = as->s + as->length;
|
|
end = as->s + as->buffer_length - MB_CUR_MAX -1;
|
|
while ((n = _utf8_to_unicode(&unicode, s, len)) != 0) {
|
|
wchar_t wc;
|
|
|
|
if (p >= end) {
|
|
as->length = p - as->s;
|
|
/* Re-allocate buffer for MBS. */
|
|
if (archive_string_ensure(as,
|
|
as->length + len * 2 + 1) == NULL)
|
|
return (-1);
|
|
p = as->s + as->length;
|
|
end = as->s + as->buffer_length - MB_CUR_MAX -1;
|
|
}
|
|
|
|
/*
|
|
* As libarchive 2.x, translates the UTF-8 characters into
|
|
* wide-characters in the assumption that WCS is Unicode.
|
|
*/
|
|
if (n < 0) {
|
|
n *= -1;
|
|
wc = L'?';
|
|
} else
|
|
wc = (wchar_t)unicode;
|
|
|
|
s += n;
|
|
len -= n;
|
|
/*
|
|
* Translates the wide-character into the current locale MBS.
|
|
*/
|
|
#if HAVE_WCRTOMB
|
|
n = (int)wcrtomb(p, wc, &shift_state);
|
|
#else
|
|
n = (int)wctomb(p, wc);
|
|
#endif
|
|
if (n == -1)
|
|
return (-1);
|
|
p += n;
|
|
}
|
|
as->length = p - as->s;
|
|
as->s[as->length] = '\0';
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Conversion functions between current locale dependent MBS and UTF-16BE.
|
|
* strncat_from_utf16be() : UTF-16BE --> MBS
|
|
* strncat_to_utf16be() : MBS --> UTF16BE
|
|
*/
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
|
|
/*
|
|
* Convert a UTF-16BE/LE string to current locale and copy the result.
|
|
* Return -1 if conversion fails.
|
|
*/
|
|
static int
|
|
win_strncat_from_utf16(struct archive_string *as, const void *_p, size_t bytes,
|
|
struct archive_string_conv *sc, int be)
|
|
{
|
|
struct archive_string tmp;
|
|
const char *u16;
|
|
int ll;
|
|
BOOL defchar;
|
|
char *mbs;
|
|
size_t mbs_size, b;
|
|
int ret = 0;
|
|
|
|
bytes &= ~1;
|
|
if (archive_string_ensure(as, as->length + bytes +1) == NULL)
|
|
return (-1);
|
|
|
|
mbs = as->s + as->length;
|
|
mbs_size = as->buffer_length - as->length -1;
|
|
|
|
if (sc->to_cp == CP_C_LOCALE) {
|
|
/*
|
|
* "C" locale special process.
|
|
*/
|
|
u16 = _p;
|
|
ll = 0;
|
|
for (b = 0; b < bytes; b += 2) {
|
|
uint16_t val;
|
|
if (be)
|
|
val = archive_be16dec(u16+b);
|
|
else
|
|
val = archive_le16dec(u16+b);
|
|
if (val > 255) {
|
|
*mbs++ = '?';
|
|
ret = -1;
|
|
} else
|
|
*mbs++ = (char)(val&0xff);
|
|
ll++;
|
|
}
|
|
as->length += ll;
|
|
as->s[as->length] = '\0';
|
|
return (ret);
|
|
}
|
|
|
|
archive_string_init(&tmp);
|
|
if (be) {
|
|
if (is_big_endian()) {
|
|
u16 = _p;
|
|
} else {
|
|
if (archive_string_ensure(&tmp, bytes+2) == NULL)
|
|
return (-1);
|
|
memcpy(tmp.s, _p, bytes);
|
|
for (b = 0; b < bytes; b += 2) {
|
|
uint16_t val = archive_be16dec(tmp.s+b);
|
|
archive_le16enc(tmp.s+b, val);
|
|
}
|
|
u16 = tmp.s;
|
|
}
|
|
} else {
|
|
if (!is_big_endian()) {
|
|
u16 = _p;
|
|
} else {
|
|
if (archive_string_ensure(&tmp, bytes+2) == NULL)
|
|
return (-1);
|
|
memcpy(tmp.s, _p, bytes);
|
|
for (b = 0; b < bytes; b += 2) {
|
|
uint16_t val = archive_le16dec(tmp.s+b);
|
|
archive_be16enc(tmp.s+b, val);
|
|
}
|
|
u16 = tmp.s;
|
|
}
|
|
}
|
|
|
|
do {
|
|
defchar = 0;
|
|
ll = WideCharToMultiByte(sc->to_cp, 0,
|
|
(LPCWSTR)u16, (int)bytes>>1, mbs, (int)mbs_size,
|
|
NULL, &defchar);
|
|
/* Exit loop if we succeeded */
|
|
if (ll != 0 ||
|
|
GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
|
|
break;
|
|
}
|
|
/* Else expand buffer and loop to try again. */
|
|
ll = WideCharToMultiByte(sc->to_cp, 0,
|
|
(LPCWSTR)u16, (int)bytes, NULL, 0, NULL, NULL);
|
|
if (archive_string_ensure(as, ll +1) == NULL)
|
|
return (-1);
|
|
mbs = as->s + as->length;
|
|
mbs_size = as->buffer_length - as->length -1;
|
|
} while (1);
|
|
archive_string_free(&tmp);
|
|
as->length += ll;
|
|
as->s[as->length] = '\0';
|
|
if (ll == 0 || defchar)
|
|
ret = -1;
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
win_strncat_from_utf16be(struct archive_string *as, const void *_p,
|
|
size_t bytes, struct archive_string_conv *sc)
|
|
{
|
|
return (win_strncat_from_utf16(as, _p, bytes, sc, 1));
|
|
}
|
|
|
|
static int
|
|
win_strncat_from_utf16le(struct archive_string *as, const void *_p,
|
|
size_t bytes, struct archive_string_conv *sc)
|
|
{
|
|
return (win_strncat_from_utf16(as, _p, bytes, sc, 0));
|
|
}
|
|
|
|
static int
|
|
is_big_endian(void)
|
|
{
|
|
uint16_t d = 1;
|
|
|
|
return (archive_be16dec(&d) == 1);
|
|
}
|
|
|
|
/*
|
|
* Convert a current locale string to UTF-16BE/LE and copy the result.
|
|
* Return -1 if conversion fails.
|
|
*/
|
|
static int
|
|
win_strncat_to_utf16(struct archive_string *as16, const void *_p,
|
|
size_t length, struct archive_string_conv *sc, int bigendian)
|
|
{
|
|
const char *s = (const char *)_p;
|
|
char *u16;
|
|
size_t count, avail;
|
|
|
|
if (archive_string_ensure(as16,
|
|
as16->length + (length + 1) * 2) == NULL)
|
|
return (-1);
|
|
|
|
u16 = as16->s + as16->length;
|
|
avail = as16->buffer_length - 2;
|
|
if (sc->from_cp == CP_C_LOCALE) {
|
|
/*
|
|
* "C" locale special process.
|
|
*/
|
|
count = 0;
|
|
while (count < length && *s) {
|
|
if (bigendian)
|
|
archive_be16enc(u16, *s);
|
|
else
|
|
archive_le16enc(u16, *s);
|
|
u16 += 2;
|
|
s++;
|
|
count++;
|
|
}
|
|
as16->length += count << 1;
|
|
as16->s[as16->length] = 0;
|
|
as16->s[as16->length+1] = 0;
|
|
return (0);
|
|
}
|
|
do {
|
|
count = MultiByteToWideChar(sc->from_cp,
|
|
MB_PRECOMPOSED, s, (int)length, (LPWSTR)u16, (int)avail>>1);
|
|
/* Exit loop if we succeeded */
|
|
if (count != 0 ||
|
|
GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
|
|
break;
|
|
}
|
|
/* Expand buffer and try again */
|
|
count = MultiByteToWideChar(sc->from_cp,
|
|
MB_PRECOMPOSED, s, (int)length, NULL, 0);
|
|
if (archive_string_ensure(as16, (count +1) * 2)
|
|
== NULL)
|
|
return (-1);
|
|
u16 = as16->s + as16->length;
|
|
avail = as16->buffer_length - 2;
|
|
} while (1);
|
|
as16->length += count * 2;
|
|
as16->s[as16->length] = 0;
|
|
as16->s[as16->length+1] = 0;
|
|
if (count == 0)
|
|
return (-1);
|
|
|
|
if (is_big_endian()) {
|
|
if (!bigendian) {
|
|
while (count > 0) {
|
|
uint16_t v = archive_be16dec(u16);
|
|
archive_le16enc(u16, v);
|
|
u16 += 2;
|
|
count--;
|
|
}
|
|
}
|
|
} else {
|
|
if (bigendian) {
|
|
while (count > 0) {
|
|
uint16_t v = archive_le16dec(u16);
|
|
archive_be16enc(u16, v);
|
|
u16 += 2;
|
|
count--;
|
|
}
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
win_strncat_to_utf16be(struct archive_string *as16, const void *_p,
|
|
size_t length, struct archive_string_conv *sc)
|
|
{
|
|
return (win_strncat_to_utf16(as16, _p, length, sc, 1));
|
|
}
|
|
|
|
static int
|
|
win_strncat_to_utf16le(struct archive_string *as16, const void *_p,
|
|
size_t length, struct archive_string_conv *sc)
|
|
{
|
|
return (win_strncat_to_utf16(as16, _p, length, sc, 0));
|
|
}
|
|
|
|
#endif /* _WIN32 && !__CYGWIN__ */
|
|
|
|
/*
|
|
* Do the best effort for conversions.
|
|
* We cannot handle UTF-16BE character-set without such iconv,
|
|
* but there is a chance if a string consists just ASCII code or
|
|
* a current locale is UTF-8.
|
|
*/
|
|
|
|
/*
|
|
* Convert a UTF-16BE string to current locale and copy the result.
|
|
* Return -1 if conversion fails.
|
|
*/
|
|
static int
|
|
best_effort_strncat_from_utf16(struct archive_string *as, const void *_p,
|
|
size_t bytes, struct archive_string_conv *sc, int be)
|
|
{
|
|
const char *utf16 = (const char *)_p;
|
|
char *mbs;
|
|
uint32_t uc;
|
|
int n, ret;
|
|
|
|
(void)sc; /* UNUSED */
|
|
/*
|
|
* Other case, we should do the best effort.
|
|
* If all character are ASCII(<0x7f), we can convert it.
|
|
* if not , we set a alternative character and return -1.
|
|
*/
|
|
ret = 0;
|
|
if (archive_string_ensure(as, as->length + bytes +1) == NULL)
|
|
return (-1);
|
|
mbs = as->s + as->length;
|
|
|
|
while ((n = utf16_to_unicode(&uc, utf16, bytes, be)) != 0) {
|
|
if (n < 0) {
|
|
n *= -1;
|
|
ret = -1;
|
|
}
|
|
bytes -= n;
|
|
utf16 += n;
|
|
|
|
if (uc > 127) {
|
|
/* We cannot handle it. */
|
|
*mbs++ = '?';
|
|
ret = -1;
|
|
} else
|
|
*mbs++ = (char)uc;
|
|
}
|
|
as->length = mbs - as->s;
|
|
as->s[as->length] = '\0';
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
best_effort_strncat_from_utf16be(struct archive_string *as, const void *_p,
|
|
size_t bytes, struct archive_string_conv *sc)
|
|
{
|
|
return (best_effort_strncat_from_utf16(as, _p, bytes, sc, 1));
|
|
}
|
|
|
|
static int
|
|
best_effort_strncat_from_utf16le(struct archive_string *as, const void *_p,
|
|
size_t bytes, struct archive_string_conv *sc)
|
|
{
|
|
return (best_effort_strncat_from_utf16(as, _p, bytes, sc, 0));
|
|
}
|
|
|
|
/*
|
|
* Convert a current locale string to UTF-16BE/LE and copy the result.
|
|
* Return -1 if conversion fails.
|
|
*/
|
|
static int
|
|
best_effort_strncat_to_utf16(struct archive_string *as16, const void *_p,
|
|
size_t length, struct archive_string_conv *sc, int bigendian)
|
|
{
|
|
const char *s = (const char *)_p;
|
|
char *utf16;
|
|
size_t remaining;
|
|
int ret;
|
|
|
|
(void)sc; /* UNUSED */
|
|
/*
|
|
* Other case, we should do the best effort.
|
|
* If all character are ASCII(<0x7f), we can convert it.
|
|
* if not , we set a alternative character and return -1.
|
|
*/
|
|
ret = 0;
|
|
remaining = length;
|
|
|
|
if (archive_string_ensure(as16,
|
|
as16->length + (length + 1) * 2) == NULL)
|
|
return (-1);
|
|
|
|
utf16 = as16->s + as16->length;
|
|
while (remaining--) {
|
|
unsigned c = *s++;
|
|
if (c > 127) {
|
|
/* We cannot handle it. */
|
|
c = UNICODE_R_CHAR;
|
|
ret = -1;
|
|
}
|
|
if (bigendian)
|
|
archive_be16enc(utf16, c);
|
|
else
|
|
archive_le16enc(utf16, c);
|
|
utf16 += 2;
|
|
}
|
|
as16->length = utf16 - as16->s;
|
|
as16->s[as16->length] = 0;
|
|
as16->s[as16->length+1] = 0;
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
best_effort_strncat_to_utf16be(struct archive_string *as16, const void *_p,
|
|
size_t length, struct archive_string_conv *sc)
|
|
{
|
|
return (best_effort_strncat_to_utf16(as16, _p, length, sc, 1));
|
|
}
|
|
|
|
static int
|
|
best_effort_strncat_to_utf16le(struct archive_string *as16, const void *_p,
|
|
size_t length, struct archive_string_conv *sc)
|
|
{
|
|
return (best_effort_strncat_to_utf16(as16, _p, length, sc, 0));
|
|
}
|
|
|
|
|
|
/*
|
|
* Multistring operations.
|
|
*/
|
|
|
|
void
|
|
archive_mstring_clean(struct archive_mstring *aes)
|
|
{
|
|
archive_wstring_free(&(aes->aes_wcs));
|
|
archive_string_free(&(aes->aes_mbs));
|
|
archive_string_free(&(aes->aes_utf8));
|
|
archive_string_free(&(aes->aes_mbs_in_locale));
|
|
aes->aes_set = 0;
|
|
}
|
|
|
|
void
|
|
archive_mstring_copy(struct archive_mstring *dest, struct archive_mstring *src)
|
|
{
|
|
dest->aes_set = src->aes_set;
|
|
archive_string_copy(&(dest->aes_mbs), &(src->aes_mbs));
|
|
archive_string_copy(&(dest->aes_utf8), &(src->aes_utf8));
|
|
archive_wstring_copy(&(dest->aes_wcs), &(src->aes_wcs));
|
|
}
|
|
|
|
int
|
|
archive_mstring_get_utf8(struct archive *a, struct archive_mstring *aes,
|
|
const char **p)
|
|
{
|
|
struct archive_string_conv *sc;
|
|
int r;
|
|
|
|
/* If we already have a UTF8 form, return that immediately. */
|
|
if (aes->aes_set & AES_SET_UTF8) {
|
|
*p = aes->aes_utf8.s;
|
|
return (0);
|
|
}
|
|
|
|
*p = NULL;
|
|
if (aes->aes_set & AES_SET_MBS) {
|
|
sc = archive_string_conversion_to_charset(a, "UTF-8", 1);
|
|
if (sc == NULL)
|
|
return (-1);/* Couldn't allocate memory for sc. */
|
|
r = archive_strncpy_l(&(aes->aes_utf8), aes->aes_mbs.s,
|
|
aes->aes_mbs.length, sc);
|
|
if (a == NULL)
|
|
free_sconv_object(sc);
|
|
if (r == 0) {
|
|
aes->aes_set |= AES_SET_UTF8;
|
|
*p = aes->aes_utf8.s;
|
|
return (0);/* success. */
|
|
} else
|
|
return (-1);/* failure. */
|
|
}
|
|
return (0);/* success. */
|
|
}
|
|
|
|
int
|
|
archive_mstring_get_mbs(struct archive *a, struct archive_mstring *aes,
|
|
const char **p)
|
|
{
|
|
int r, ret = 0;
|
|
|
|
(void)a; /* UNUSED */
|
|
/* If we already have an MBS form, return that immediately. */
|
|
if (aes->aes_set & AES_SET_MBS) {
|
|
*p = aes->aes_mbs.s;
|
|
return (ret);
|
|
}
|
|
|
|
*p = NULL;
|
|
/* If there's a WCS form, try converting with the native locale. */
|
|
if (aes->aes_set & AES_SET_WCS) {
|
|
archive_string_empty(&(aes->aes_mbs));
|
|
r = archive_string_append_from_wcs(&(aes->aes_mbs),
|
|
aes->aes_wcs.s, aes->aes_wcs.length);
|
|
*p = aes->aes_mbs.s;
|
|
if (r == 0) {
|
|
aes->aes_set |= AES_SET_MBS;
|
|
return (ret);
|
|
} else
|
|
ret = -1;
|
|
}
|
|
|
|
/*
|
|
* Only a UTF-8 form cannot avail because its conversion already
|
|
* failed at archive_mstring_update_utf8().
|
|
*/
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
archive_mstring_get_wcs(struct archive *a, struct archive_mstring *aes,
|
|
const wchar_t **wp)
|
|
{
|
|
int r, ret = 0;
|
|
|
|
(void)a;/* UNUSED */
|
|
/* Return WCS form if we already have it. */
|
|
if (aes->aes_set & AES_SET_WCS) {
|
|
*wp = aes->aes_wcs.s;
|
|
return (ret);
|
|
}
|
|
|
|
*wp = NULL;
|
|
/* Try converting MBS to WCS using native locale. */
|
|
if (aes->aes_set & AES_SET_MBS) {
|
|
archive_wstring_empty(&(aes->aes_wcs));
|
|
r = archive_wstring_append_from_mbs(&(aes->aes_wcs),
|
|
aes->aes_mbs.s, aes->aes_mbs.length);
|
|
if (r == 0) {
|
|
aes->aes_set |= AES_SET_WCS;
|
|
*wp = aes->aes_wcs.s;
|
|
} else
|
|
ret = -1;/* failure. */
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
archive_mstring_get_mbs_l(struct archive_mstring *aes,
|
|
const char **p, size_t *length, struct archive_string_conv *sc)
|
|
{
|
|
int r, ret = 0;
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
/*
|
|
* Internationalization programming on Windows must use Wide
|
|
* characters because Windows platform cannot make locale UTF-8.
|
|
*/
|
|
if (sc != NULL && (aes->aes_set & AES_SET_WCS) != 0) {
|
|
archive_string_empty(&(aes->aes_mbs_in_locale));
|
|
r = archive_string_append_from_wcs_in_codepage(
|
|
&(aes->aes_mbs_in_locale), aes->aes_wcs.s,
|
|
aes->aes_wcs.length, sc);
|
|
if (r == 0) {
|
|
*p = aes->aes_mbs_in_locale.s;
|
|
if (length != NULL)
|
|
*length = aes->aes_mbs_in_locale.length;
|
|
return (0);
|
|
} else if (errno == ENOMEM)
|
|
return (-1);
|
|
else
|
|
ret = -1;
|
|
}
|
|
#endif
|
|
|
|
/* If there is not an MBS form but is a WCS form, try converting
|
|
* with the native locale to be used for translating it to specified
|
|
* character-set. */
|
|
if ((aes->aes_set & AES_SET_MBS) == 0 &&
|
|
(aes->aes_set & AES_SET_WCS) != 0) {
|
|
archive_string_empty(&(aes->aes_mbs));
|
|
r = archive_string_append_from_wcs(&(aes->aes_mbs),
|
|
aes->aes_wcs.s, aes->aes_wcs.length);
|
|
if (r == 0)
|
|
aes->aes_set |= AES_SET_MBS;
|
|
else if (errno == ENOMEM)
|
|
return (-1);
|
|
else
|
|
ret = -1;
|
|
}
|
|
/* If we already have an MBS form, use it to be translated to
|
|
* specified character-set. */
|
|
if (aes->aes_set & AES_SET_MBS) {
|
|
if (sc == NULL) {
|
|
/* Conversion is unneeded. */
|
|
*p = aes->aes_mbs.s;
|
|
if (length != NULL)
|
|
*length = aes->aes_mbs.length;
|
|
return (0);
|
|
}
|
|
ret = archive_strncpy_l(&(aes->aes_mbs_in_locale),
|
|
aes->aes_mbs.s, aes->aes_mbs.length, sc);
|
|
*p = aes->aes_mbs_in_locale.s;
|
|
if (length != NULL)
|
|
*length = aes->aes_mbs_in_locale.length;
|
|
} else {
|
|
*p = NULL;
|
|
if (length != NULL)
|
|
*length = 0;
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
archive_mstring_copy_mbs(struct archive_mstring *aes, const char *mbs)
|
|
{
|
|
if (mbs == NULL) {
|
|
aes->aes_set = 0;
|
|
return (0);
|
|
}
|
|
return (archive_mstring_copy_mbs_len(aes, mbs, strlen(mbs)));
|
|
}
|
|
|
|
int
|
|
archive_mstring_copy_mbs_len(struct archive_mstring *aes, const char *mbs,
|
|
size_t len)
|
|
{
|
|
if (mbs == NULL) {
|
|
aes->aes_set = 0;
|
|
return (0);
|
|
}
|
|
aes->aes_set = AES_SET_MBS; /* Only MBS form is set now. */
|
|
archive_strncpy(&(aes->aes_mbs), mbs, len);
|
|
archive_string_empty(&(aes->aes_utf8));
|
|
archive_wstring_empty(&(aes->aes_wcs));
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
archive_mstring_copy_wcs(struct archive_mstring *aes, const wchar_t *wcs)
|
|
{
|
|
return archive_mstring_copy_wcs_len(aes, wcs,
|
|
wcs == NULL ? 0 : wcslen(wcs));
|
|
}
|
|
|
|
int
|
|
archive_mstring_copy_utf8(struct archive_mstring *aes, const char *utf8)
|
|
{
|
|
if (utf8 == NULL) {
|
|
aes->aes_set = 0;
|
|
}
|
|
aes->aes_set = AES_SET_UTF8;
|
|
archive_string_empty(&(aes->aes_mbs));
|
|
archive_string_empty(&(aes->aes_wcs));
|
|
archive_strncpy(&(aes->aes_utf8), utf8, strlen(utf8));
|
|
return (int)strlen(utf8);
|
|
}
|
|
|
|
int
|
|
archive_mstring_copy_wcs_len(struct archive_mstring *aes, const wchar_t *wcs,
|
|
size_t len)
|
|
{
|
|
if (wcs == NULL) {
|
|
aes->aes_set = 0;
|
|
}
|
|
aes->aes_set = AES_SET_WCS; /* Only WCS form set. */
|
|
archive_string_empty(&(aes->aes_mbs));
|
|
archive_string_empty(&(aes->aes_utf8));
|
|
archive_wstrncpy(&(aes->aes_wcs), wcs, len);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
archive_mstring_copy_mbs_len_l(struct archive_mstring *aes,
|
|
const char *mbs, size_t len, struct archive_string_conv *sc)
|
|
{
|
|
int r;
|
|
|
|
if (mbs == NULL) {
|
|
aes->aes_set = 0;
|
|
return (0);
|
|
}
|
|
archive_string_empty(&(aes->aes_mbs));
|
|
archive_wstring_empty(&(aes->aes_wcs));
|
|
archive_string_empty(&(aes->aes_utf8));
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
/*
|
|
* Internationalization programming on Windows must use Wide
|
|
* characters because Windows platform cannot make locale UTF-8.
|
|
*/
|
|
if (sc == NULL) {
|
|
if (archive_string_append(&(aes->aes_mbs),
|
|
mbs, mbsnbytes(mbs, len)) == NULL) {
|
|
aes->aes_set = 0;
|
|
r = -1;
|
|
} else {
|
|
aes->aes_set = AES_SET_MBS;
|
|
r = 0;
|
|
}
|
|
#if defined(HAVE_ICONV)
|
|
} else if (sc != NULL && sc->cd_w != (iconv_t)-1) {
|
|
/*
|
|
* This case happens only when MultiByteToWideChar() cannot
|
|
* handle sc->from_cp, and we have to iconv in order to
|
|
* translate character-set to wchar_t,UTF-16.
|
|
*/
|
|
iconv_t cd = sc->cd;
|
|
unsigned from_cp;
|
|
int flag;
|
|
|
|
/*
|
|
* Translate multi-bytes from some character-set to UTF-8.
|
|
*/
|
|
sc->cd = sc->cd_w;
|
|
r = archive_strncpy_l(&(aes->aes_utf8), mbs, len, sc);
|
|
sc->cd = cd;
|
|
if (r != 0) {
|
|
aes->aes_set = 0;
|
|
return (r);
|
|
}
|
|
aes->aes_set = AES_SET_UTF8;
|
|
|
|
/*
|
|
* Append the UTF-8 string into wstring.
|
|
*/
|
|
flag = sc->flag;
|
|
sc->flag &= ~(SCONV_NORMALIZATION_C
|
|
| SCONV_TO_UTF16| SCONV_FROM_UTF16);
|
|
from_cp = sc->from_cp;
|
|
sc->from_cp = CP_UTF8;
|
|
r = archive_wstring_append_from_mbs_in_codepage(&(aes->aes_wcs),
|
|
aes->aes_utf8.s, aes->aes_utf8.length, sc);
|
|
sc->flag = flag;
|
|
sc->from_cp = from_cp;
|
|
if (r == 0)
|
|
aes->aes_set |= AES_SET_WCS;
|
|
#endif
|
|
} else {
|
|
r = archive_wstring_append_from_mbs_in_codepage(
|
|
&(aes->aes_wcs), mbs, len, sc);
|
|
if (r == 0)
|
|
aes->aes_set = AES_SET_WCS;
|
|
else
|
|
aes->aes_set = 0;
|
|
}
|
|
#else
|
|
r = archive_strncpy_l(&(aes->aes_mbs), mbs, len, sc);
|
|
if (r == 0)
|
|
aes->aes_set = AES_SET_MBS; /* Only MBS form is set now. */
|
|
else
|
|
aes->aes_set = 0;
|
|
#endif
|
|
return (r);
|
|
}
|
|
|
|
/*
|
|
* The 'update' form tries to proactively update all forms of
|
|
* this string (WCS and MBS) and returns an error if any of
|
|
* them fail. This is used by the 'pax' handler, for instance,
|
|
* to detect and report character-conversion failures early while
|
|
* still allowing clients to get potentially useful values from
|
|
* the more tolerant lazy conversions. (get_mbs and get_wcs will
|
|
* strive to give the user something useful, so you can get hopefully
|
|
* usable values even if some of the character conversions are failing.)
|
|
*/
|
|
int
|
|
archive_mstring_update_utf8(struct archive *a, struct archive_mstring *aes,
|
|
const char *utf8)
|
|
{
|
|
struct archive_string_conv *sc;
|
|
int r;
|
|
|
|
if (utf8 == NULL) {
|
|
aes->aes_set = 0;
|
|
return (0); /* Succeeded in clearing everything. */
|
|
}
|
|
|
|
/* Save the UTF8 string. */
|
|
archive_strcpy(&(aes->aes_utf8), utf8);
|
|
|
|
/* Empty the mbs and wcs strings. */
|
|
archive_string_empty(&(aes->aes_mbs));
|
|
archive_wstring_empty(&(aes->aes_wcs));
|
|
|
|
aes->aes_set = AES_SET_UTF8; /* Only UTF8 is set now. */
|
|
|
|
/* Try converting UTF-8 to MBS, return false on failure. */
|
|
sc = archive_string_conversion_from_charset(a, "UTF-8", 1);
|
|
if (sc == NULL)
|
|
return (-1);/* Couldn't allocate memory for sc. */
|
|
r = archive_strcpy_l(&(aes->aes_mbs), utf8, sc);
|
|
if (a == NULL)
|
|
free_sconv_object(sc);
|
|
if (r != 0)
|
|
return (-1);
|
|
aes->aes_set = AES_SET_UTF8 | AES_SET_MBS; /* Both UTF8 and MBS set. */
|
|
|
|
/* Try converting MBS to WCS, return false on failure. */
|
|
if (archive_wstring_append_from_mbs(&(aes->aes_wcs), aes->aes_mbs.s,
|
|
aes->aes_mbs.length))
|
|
return (-1);
|
|
aes->aes_set = AES_SET_UTF8 | AES_SET_WCS | AES_SET_MBS;
|
|
|
|
/* All conversions succeeded. */
|
|
return (0);
|
|
}
|