pmt: revert 7f8090b
This commit is contained in:
@@ -1,164 +0,0 @@
|
||||
/* Conversion from UTF-16/UTF-32 to legacy encodings.
|
||||
Copyright (C) 2002, 2006-2024 Free Software Foundation, Inc.
|
||||
|
||||
This file is free software.
|
||||
It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
|
||||
You can redistribute it and/or modify it under either
|
||||
- the terms of the GNU Lesser General Public License as published
|
||||
by the Free Software Foundation, either version 3, or (at your
|
||||
option) any later version, or
|
||||
- the terms of the GNU General Public License as published by the
|
||||
Free Software Foundation; either version 2, or (at your option)
|
||||
any later version, or
|
||||
- the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
|
||||
|
||||
This file 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 and the GNU General Public License
|
||||
for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License and of the GNU General Public License along with this
|
||||
program. If not, see <https://www.gnu.org/licenses/>. */
|
||||
|
||||
char *
|
||||
FUNC (const char *tocode,
|
||||
enum iconv_ilseq_handler handler,
|
||||
const UNIT *src, size_t srclen,
|
||||
size_t *offsets,
|
||||
char *resultbuf, size_t *lengthp)
|
||||
{
|
||||
#if HAVE_UTF_NAME
|
||||
size_t *scaled_offsets;
|
||||
char *result;
|
||||
size_t length;
|
||||
|
||||
if (offsets != NULL && srclen > 0)
|
||||
{
|
||||
scaled_offsets =
|
||||
(size_t *) malloc (srclen * sizeof (UNIT) * sizeof (size_t));
|
||||
if (scaled_offsets == NULL)
|
||||
{
|
||||
errno = ENOMEM;
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
else
|
||||
scaled_offsets = NULL;
|
||||
|
||||
result = resultbuf;
|
||||
length = *lengthp;
|
||||
if (mem_iconveha ((const char *) src, srclen * sizeof (UNIT),
|
||||
UTF_NAME, tocode,
|
||||
handler == iconveh_question_mark, handler,
|
||||
scaled_offsets, &result, &length) < 0)
|
||||
{
|
||||
int saved_errno = errno;
|
||||
free (scaled_offsets);
|
||||
errno = saved_errno;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (offsets != NULL)
|
||||
{
|
||||
/* Convert scaled_offsets[srclen * sizeof (UNIT)] to
|
||||
offsets[srclen]. */
|
||||
size_t i;
|
||||
|
||||
for (i = 0; i < srclen; i++)
|
||||
offsets[i] = scaled_offsets[i * sizeof (UNIT)];
|
||||
free (scaled_offsets);
|
||||
}
|
||||
|
||||
if (result == NULL) /* when (resultbuf == NULL && length == 0) */
|
||||
{
|
||||
result = (char *) malloc (1);
|
||||
if (result == NULL)
|
||||
{
|
||||
errno = ENOMEM;
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
*lengthp = length;
|
||||
return result;
|
||||
#else
|
||||
uint8_t tmpbuf[4096];
|
||||
size_t tmpbufsize = SIZEOF (tmpbuf);
|
||||
uint8_t *utf8_src;
|
||||
size_t utf8_srclen;
|
||||
size_t *scaled_offsets;
|
||||
char *result;
|
||||
|
||||
utf8_src = U_TO_U8 (src, srclen, tmpbuf, &tmpbufsize);
|
||||
if (utf8_src == NULL)
|
||||
return NULL;
|
||||
utf8_srclen = tmpbufsize;
|
||||
|
||||
if (offsets != NULL && utf8_srclen > 0)
|
||||
{
|
||||
scaled_offsets = (size_t *) malloc (utf8_srclen * sizeof (size_t));
|
||||
if (scaled_offsets == NULL)
|
||||
{
|
||||
if (utf8_src != tmpbuf)
|
||||
free (utf8_src);
|
||||
errno = ENOMEM;
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
else
|
||||
scaled_offsets = NULL;
|
||||
|
||||
result = u8_conv_to_encoding (tocode, handler, utf8_src, utf8_srclen,
|
||||
scaled_offsets, resultbuf, lengthp);
|
||||
if (result == NULL)
|
||||
{
|
||||
int saved_errno = errno;
|
||||
free (scaled_offsets);
|
||||
if (utf8_src != tmpbuf)
|
||||
free (utf8_src);
|
||||
errno = saved_errno;
|
||||
return NULL;
|
||||
}
|
||||
if (offsets != NULL)
|
||||
{
|
||||
size_t iunit; /* offset into src */
|
||||
size_t i8; /* offset into utf8_src */
|
||||
|
||||
for (iunit = 0; iunit < srclen; iunit++)
|
||||
offsets[iunit] = (size_t)(-1);
|
||||
|
||||
iunit = 0;
|
||||
i8 = 0;
|
||||
while (iunit < srclen && i8 < utf8_srclen)
|
||||
{
|
||||
int countunit;
|
||||
int count8;
|
||||
|
||||
offsets[iunit] = scaled_offsets[i8];
|
||||
|
||||
countunit = U_MBLEN (src + iunit, srclen - iunit);
|
||||
count8 = u8_mblen (utf8_src + i8, utf8_srclen - i8);
|
||||
if (countunit < 0 || count8 < 0)
|
||||
abort ();
|
||||
iunit += countunit;
|
||||
i8 += count8;
|
||||
}
|
||||
/* Check that utf8_src has been traversed entirely. */
|
||||
if (i8 < utf8_srclen)
|
||||
abort ();
|
||||
/* Check that src has been traversed entirely, except possibly for an
|
||||
incomplete sequence of units at the end. */
|
||||
if (iunit < srclen)
|
||||
{
|
||||
offsets[iunit] = *lengthp;
|
||||
if (!(U_MBLEN (src + iunit, srclen - iunit) < 0))
|
||||
abort ();
|
||||
}
|
||||
free (scaled_offsets);
|
||||
}
|
||||
if (utf8_src != tmpbuf)
|
||||
free (utf8_src);
|
||||
return result;
|
||||
#endif
|
||||
}
|
||||
Reference in New Issue
Block a user