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-rw-r--r--lib/iconv.c449
1 files changed, 0 insertions, 449 deletions
diff --git a/lib/iconv.c b/lib/iconv.c
deleted file mode 100644
index 850c8b77..00000000
--- a/lib/iconv.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/* Character set conversion.
- Copyright (C) 1999-2001, 2007, 2009-2015 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License along
- with this program; if not, see <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-
-/* Specification. */
-#include <iconv.h>
-
-#include <stddef.h>
-
-#if REPLACE_ICONV_UTF
-# include <errno.h>
-# include <stdint.h>
-# include <stdlib.h>
-# include "unistr.h"
-# ifndef uintptr_t
-# define uintptr_t unsigned long
-# endif
-#endif
-
-#if REPLACE_ICONV_UTF
-
-/* UTF-{16,32}{BE,LE} converters taken from GNU libiconv 1.11. */
-
-/* Return code if invalid. (xxx_mbtowc) */
-# define RET_ILSEQ -1
-/* Return code if no bytes were read. (xxx_mbtowc) */
-# define RET_TOOFEW -2
-
-/* Return code if invalid. (xxx_wctomb) */
-# define RET_ILUNI -1
-/* Return code if output buffer is too small. (xxx_wctomb, xxx_reset) */
-# define RET_TOOSMALL -2
-
-/*
- * UTF-16BE
- */
-
-/* Specification: RFC 2781 */
-
-static int
-utf16be_mbtowc (ucs4_t *pwc, const unsigned char *s, size_t n)
-{
- if (n >= 2)
- {
- ucs4_t wc = (s[0] << 8) + s[1];
- if (wc >= 0xd800 && wc < 0xdc00)
- {
- if (n >= 4)
- {
- ucs4_t wc2 = (s[2] << 8) + s[3];
- if (!(wc2 >= 0xdc00 && wc2 < 0xe000))
- return RET_ILSEQ;
- *pwc = 0x10000 + ((wc - 0xd800) << 10) + (wc2 - 0xdc00);
- return 4;
- }
- }
- else if (wc >= 0xdc00 && wc < 0xe000)
- {
- return RET_ILSEQ;
- }
- else
- {
- *pwc = wc;
- return 2;
- }
- }
- return RET_TOOFEW;
-}
-
-static int
-utf16be_wctomb (unsigned char *r, ucs4_t wc, size_t n)
-{
- if (!(wc >= 0xd800 && wc < 0xe000))
- {
- if (wc < 0x10000)
- {
- if (n >= 2)
- {
- r[0] = (unsigned char) (wc >> 8);
- r[1] = (unsigned char) wc;
- return 2;
- }
- else
- return RET_TOOSMALL;
- }
- else if (wc < 0x110000)
- {
- if (n >= 4)
- {
- ucs4_t wc1 = 0xd800 + ((wc - 0x10000) >> 10);
- ucs4_t wc2 = 0xdc00 + ((wc - 0x10000) & 0x3ff);
- r[0] = (unsigned char) (wc1 >> 8);
- r[1] = (unsigned char) wc1;
- r[2] = (unsigned char) (wc2 >> 8);
- r[3] = (unsigned char) wc2;
- return 4;
- }
- else
- return RET_TOOSMALL;
- }
- }
- return RET_ILUNI;
-}
-
-/*
- * UTF-16LE
- */
-
-/* Specification: RFC 2781 */
-
-static int
-utf16le_mbtowc (ucs4_t *pwc, const unsigned char *s, size_t n)
-{
- if (n >= 2)
- {
- ucs4_t wc = s[0] + (s[1] << 8);
- if (wc >= 0xd800 && wc < 0xdc00)
- {
- if (n >= 4)
- {
- ucs4_t wc2 = s[2] + (s[3] << 8);
- if (!(wc2 >= 0xdc00 && wc2 < 0xe000))
- return RET_ILSEQ;
- *pwc = 0x10000 + ((wc - 0xd800) << 10) + (wc2 - 0xdc00);
- return 4;
- }
- }
- else if (wc >= 0xdc00 && wc < 0xe000)
- {
- return RET_ILSEQ;
- }
- else
- {
- *pwc = wc;
- return 2;
- }
- }
- return RET_TOOFEW;
-}
-
-static int
-utf16le_wctomb (unsigned char *r, ucs4_t wc, size_t n)
-{
- if (!(wc >= 0xd800 && wc < 0xe000))
- {
- if (wc < 0x10000)
- {
- if (n >= 2)
- {
- r[0] = (unsigned char) wc;
- r[1] = (unsigned char) (wc >> 8);
- return 2;
- }
- else
- return RET_TOOSMALL;
- }
- else if (wc < 0x110000)
- {
- if (n >= 4)
- {
- ucs4_t wc1 = 0xd800 + ((wc - 0x10000) >> 10);
- ucs4_t wc2 = 0xdc00 + ((wc - 0x10000) & 0x3ff);
- r[0] = (unsigned char) wc1;
- r[1] = (unsigned char) (wc1 >> 8);
- r[2] = (unsigned char) wc2;
- r[3] = (unsigned char) (wc2 >> 8);
- return 4;
- }
- else
- return RET_TOOSMALL;
- }
- }
- return RET_ILUNI;
-}
-
-/*
- * UTF-32BE
- */
-
-/* Specification: Unicode 3.1 Standard Annex #19 */
-
-static int
-utf32be_mbtowc (ucs4_t *pwc, const unsigned char *s, size_t n)
-{
- if (n >= 4)
- {
- ucs4_t wc = (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3];
- if (wc < 0x110000 && !(wc >= 0xd800 && wc < 0xe000))
- {
- *pwc = wc;
- return 4;
- }
- else
- return RET_ILSEQ;
- }
- return RET_TOOFEW;
-}
-
-static int
-utf32be_wctomb (unsigned char *r, ucs4_t wc, size_t n)
-{
- if (wc < 0x110000 && !(wc >= 0xd800 && wc < 0xe000))
- {
- if (n >= 4)
- {
- r[0] = 0;
- r[1] = (unsigned char) (wc >> 16);
- r[2] = (unsigned char) (wc >> 8);
- r[3] = (unsigned char) wc;
- return 4;
- }
- else
- return RET_TOOSMALL;
- }
- return RET_ILUNI;
-}
-
-/*
- * UTF-32LE
- */
-
-/* Specification: Unicode 3.1 Standard Annex #19 */
-
-static int
-utf32le_mbtowc (ucs4_t *pwc, const unsigned char *s, size_t n)
-{
- if (n >= 4)
- {
- ucs4_t wc = s[0] + (s[1] << 8) + (s[2] << 16) + (s[3] << 24);
- if (wc < 0x110000 && !(wc >= 0xd800 && wc < 0xe000))
- {
- *pwc = wc;
- return 4;
- }
- else
- return RET_ILSEQ;
- }
- return RET_TOOFEW;
-}
-
-static int
-utf32le_wctomb (unsigned char *r, ucs4_t wc, size_t n)
-{
- if (wc < 0x110000 && !(wc >= 0xd800 && wc < 0xe000))
- {
- if (n >= 4)
- {
- r[0] = (unsigned char) wc;
- r[1] = (unsigned char) (wc >> 8);
- r[2] = (unsigned char) (wc >> 16);
- r[3] = 0;
- return 4;
- }
- else
- return RET_TOOSMALL;
- }
- return RET_ILUNI;
-}
-
-#endif
-
-size_t
-rpl_iconv (iconv_t cd,
- ICONV_CONST char **inbuf, size_t *inbytesleft,
- char **outbuf, size_t *outbytesleft)
-#undef iconv
-{
-#if REPLACE_ICONV_UTF
- switch ((uintptr_t) cd)
- {
- {
- int (*xxx_wctomb) (unsigned char *, ucs4_t, size_t);
-
- case (uintptr_t) _ICONV_UTF8_UTF16BE:
- xxx_wctomb = utf16be_wctomb;
- goto loop_from_utf8;
- case (uintptr_t) _ICONV_UTF8_UTF16LE:
- xxx_wctomb = utf16le_wctomb;
- goto loop_from_utf8;
- case (uintptr_t) _ICONV_UTF8_UTF32BE:
- xxx_wctomb = utf32be_wctomb;
- goto loop_from_utf8;
- case (uintptr_t) _ICONV_UTF8_UTF32LE:
- xxx_wctomb = utf32le_wctomb;
- goto loop_from_utf8;
-
- loop_from_utf8:
- if (inbuf == NULL || *inbuf == NULL)
- return 0;
- {
- ICONV_CONST char *inptr = *inbuf;
- size_t inleft = *inbytesleft;
- char *outptr = *outbuf;
- size_t outleft = *outbytesleft;
- size_t res = 0;
- while (inleft > 0)
- {
- ucs4_t uc;
- int m = u8_mbtoucr (&uc, (const uint8_t *) inptr, inleft);
- if (m <= 0)
- {
- if (m == -1)
- {
- errno = EILSEQ;
- res = (size_t)(-1);
- break;
- }
- if (m == -2)
- {
- errno = EINVAL;
- res = (size_t)(-1);
- break;
- }
- abort ();
- }
- else
- {
- int n = xxx_wctomb ((uint8_t *) outptr, uc, outleft);
- if (n < 0)
- {
- if (n == RET_ILUNI)
- {
- errno = EILSEQ;
- res = (size_t)(-1);
- break;
- }
- if (n == RET_TOOSMALL)
- {
- errno = E2BIG;
- res = (size_t)(-1);
- break;
- }
- abort ();
- }
- else
- {
- inptr += m;
- inleft -= m;
- outptr += n;
- outleft -= n;
- }
- }
- }
- *inbuf = inptr;
- *inbytesleft = inleft;
- *outbuf = outptr;
- *outbytesleft = outleft;
- return res;
- }
- }
-
- {
- int (*xxx_mbtowc) (ucs4_t *, const unsigned char *, size_t);
-
- case (uintptr_t) _ICONV_UTF16BE_UTF8:
- xxx_mbtowc = utf16be_mbtowc;
- goto loop_to_utf8;
- case (uintptr_t) _ICONV_UTF16LE_UTF8:
- xxx_mbtowc = utf16le_mbtowc;
- goto loop_to_utf8;
- case (uintptr_t) _ICONV_UTF32BE_UTF8:
- xxx_mbtowc = utf32be_mbtowc;
- goto loop_to_utf8;
- case (uintptr_t) _ICONV_UTF32LE_UTF8:
- xxx_mbtowc = utf32le_mbtowc;
- goto loop_to_utf8;
-
- loop_to_utf8:
- if (inbuf == NULL || *inbuf == NULL)
- return 0;
- {
- ICONV_CONST char *inptr = *inbuf;
- size_t inleft = *inbytesleft;
- char *outptr = *outbuf;
- size_t outleft = *outbytesleft;
- size_t res = 0;
- while (inleft > 0)
- {
- ucs4_t uc;
- int m = xxx_mbtowc (&uc, (const uint8_t *) inptr, inleft);
- if (m <= 0)
- {
- if (m == RET_ILSEQ)
- {
- errno = EILSEQ;
- res = (size_t)(-1);
- break;
- }
- if (m == RET_TOOFEW)
- {
- errno = EINVAL;
- res = (size_t)(-1);
- break;
- }
- abort ();
- }
- else
- {
- int n = u8_uctomb ((uint8_t *) outptr, uc, outleft);
- if (n < 0)
- {
- if (n == -1)
- {
- errno = EILSEQ;
- res = (size_t)(-1);
- break;
- }
- if (n == -2)
- {
- errno = E2BIG;
- res = (size_t)(-1);
- break;
- }
- abort ();
- }
- else
- {
- inptr += m;
- inleft -= m;
- outptr += n;
- outleft -= n;
- }
- }
- }
- *inbuf = inptr;
- *inbytesleft = inleft;
- *outbuf = outptr;
- *outbytesleft = outleft;
- return res;
- }
- }
- }
-#endif
- return iconv (cd, inbuf, inbytesleft, outbuf, outbytesleft);
-}
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