-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
+ Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <gconv.h>
-#include <stdlib.h>
-#include <string.h>
#include <wchar.h>
-#include <wcsmbsload.h>
-
-#include <assert.h>
-
-#ifndef EILSEQ
-# define EILSEQ EINVAL
-#endif
+#include <locale/localeinfo.h>
/* This is the private state used if PS is NULL. */
static mbstate_t state;
size_t
-__mbsrtowcs (dst, src, len, ps)
- wchar_t *dst;
- const char **src;
- size_t len;
- mbstate_t *ps;
+__mbsrtowcs (wchar_t *dst, const char **src, size_t len, mbstate_t *ps)
{
- struct gconv_step_data data;
- size_t result = 0;
- int status;
-
- /* Tell where we want the result. */
- data.invocation_counter = 0;
- data.internal_use = 1;
- data.is_last = 1;
- data.statep = ps ?: &state;
-
- /* Make sure we use the correct function. */
- update_conversion_ptrs ();
-
- /* We have to handle DST == NULL special. */
- if (dst == NULL)
- {
- wchar_t buf[64]; /* Just an arbitrary size. */
- const char *srcend = *src + strlen (*src) + 1;
- const char *inbuf = *src;
-
- data.outbufend = data.outbuf + sizeof (buf);
- do
- {
- data.outbuf = (char *) buf;
-
- status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc,
- &data, &inbuf, srcend,
- &result, 0);
- }
- while (status == GCONV_FULL_OUTPUT);
-
- if (status == GCONV_OK || status == GCONV_EMPTY_INPUT)
- {
- /* There better should be a NUL wide char at the end. */
- assert (((wchar_t *) data.outbuf)[-1] == L'\0');
- /* Don't count the NUL character in. */
- --result;
- }
- }
- else
- {
- /* This code is based on the safe assumption that all internal
- multi-byte encodings use the NUL byte only to mark the end
- of the string. */
- const char *srcend = *src + __strnlen (*src, len * MB_CUR_MAX) + 1;
-
- data.outbuf = (char *) dst;
- data.outbufend = data.outbuf + len * sizeof (wchar_t);
-
- status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc,
- &data, src, srcend,
- &result, 0);
-
- /* We have to determine whether the last character converted
- is the NUL character. */
- if ((status == GCONV_OK || status == GCONV_EMPTY_INPUT)
- && ((wchar_t *) dst)[result - 1] == L'\0')
- {
- assert (result > 0);
- assert (__mbsinit (data.statep));
- *src = NULL;
- --result;
- }
- }
-
- /* There must not be any problems with the conversion but illegal input
- characters. */
- assert (status == GCONV_OK || status == GCONV_EMPTY_INPUT
- || status == GCONV_ILLEGAL_INPUT
- || status == GCONV_INCOMPLETE_INPUT || status == GCONV_FULL_OUTPUT);
-
- if (status != GCONV_OK && status != GCONV_FULL_OUTPUT
- && status != GCONV_EMPTY_INPUT)
- {
- result = (size_t) -1;
- __set_errno (EILSEQ);
- }
-
- return result;
+ return __mbsrtowcs_l (dst, src, len, ps ?: &state, _NL_CURRENT_LOCALE);
}
weak_alias (__mbsrtowcs, mbsrtowcs)