72 lines
2.4 KiB
C
Executable File
72 lines
2.4 KiB
C
Executable File
/* Conversion from UTF-16/UTF-32 to legacy encodings.
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Copyright (C) 2002, 2006-2007, 2009-2024 Free Software Foundation, Inc.
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This file is free software.
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It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
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You can redistribute it and/or modify it under either
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- the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation, either version 3, or (at your
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option) any later version, or
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- the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option)
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any later version, or
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- the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License and the GNU General Public License
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for more details.
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You should have received a copy of the GNU Lesser General Public
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License and of the GNU General Public License along with this
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program. If not, see <https://www.gnu.org/licenses/>. */
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char *
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FUNC (const UNIT *string,
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const char *tocode,
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enum iconv_ilseq_handler handler)
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{
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#if HAVE_UTF_NAME
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char *result = NULL;
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size_t length = 0;
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if (mem_iconveha ((const char *) string, (U_STRLEN (string) + 1) * sizeof (UNIT),
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UTF_NAME, tocode,
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handler == iconveh_question_mark, handler,
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NULL, &result, &length) < 0)
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return NULL;
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/* Verify the result has exactly one NUL byte, at the end. */
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if (!(length > 0 && result[length-1] == '\0' && strlen (result) == length-1))
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{
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free (result);
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errno = EILSEQ;
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return NULL;
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}
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return result;
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#else
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uint8_t tmpbuf[4096];
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size_t tmpbufsize = SIZEOF (tmpbuf);
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uint8_t *utf8_string;
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char *result;
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utf8_string = U_TO_U8 (string, U_STRLEN (string) + 1, tmpbuf, &tmpbufsize);
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if (utf8_string == NULL)
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return NULL;
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result = u8_strconv_to_encoding (utf8_string, tocode, handler);
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if (result == NULL)
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{
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if (utf8_string != tmpbuf)
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{
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int saved_errno = errno;
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free (utf8_string);
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errno = saved_errno;
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}
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return NULL;
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}
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if (utf8_string != tmpbuf)
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free (utf8_string);
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return result;
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#endif
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}
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