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/* Conversion from UTF-16/UTF-32 to legacy encodings.
Copyright (C) 2002, 2006-2007, 2009-2024 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 UNIT *string,
const char *tocode,
enum iconv_ilseq_handler handler)
{
#if HAVE_UTF_NAME
char *result = NULL;
size_t length = 0;
if (mem_iconveha ((const char *) string, (U_STRLEN (string) + 1) * sizeof (UNIT),
UTF_NAME, tocode,
handler == iconveh_question_mark, handler,
NULL, &result, &length) < 0)
return NULL;
/* Verify the result has exactly one NUL byte, at the end. */
if (!(length > 0 && result[length-1] == '\0' && strlen (result) == length-1))
{
free (result);
errno = EILSEQ;
return NULL;
}
return result;
#else
uint8_t tmpbuf[4096];
size_t tmpbufsize = SIZEOF (tmpbuf);
uint8_t *utf8_string;
char *result;
utf8_string = U_TO_U8 (string, U_STRLEN (string) + 1, tmpbuf, &tmpbufsize);
if (utf8_string == NULL)
return NULL;
result = u8_strconv_to_encoding (utf8_string, tocode, handler);
if (result == NULL)
{
if (utf8_string != tmpbuf)
{
int saved_errno = errno;
free (utf8_string);
errno = saved_errno;
}
return NULL;
}
if (utf8_string != tmpbuf)
free (utf8_string);
return result;
#endif
}
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