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* wcsmbs/wcsmbsload.h (__wcsmbs_gconv_fcts, __wcsmbs_last_locale, __wcsmbs_to_wc, update_conversion_ptrs): Removed. (__wcsmbs_gconv_fcts_c, _nl_C_LC_CTYPE): New externs. (__wcsmbs_load_conv): Remove const from argument. (_nl_cleanup_ctype): New proto. (get_gconv_fcts): New function. * wcsmbs/wcsmbsload.c (__wcsmbs_last_locale): Removed. (__wcsmbs_to_wc): Rename back to... (to_wc): ... this. (__wcsmbs_gconv_fcts): Rename to... (__wcsmbs_gconv_fcts_c): ... this. Make const. Use to_wc. (lock): Removed. (__libc_setlocale_lock): New extern. (__wcsmbs_load_conv): Remove const from argument. Initialize new_category->private.ctype instead of a global variable. (__wcsmbs_clone_conv): Use get_gconv_fcts instead of update_function_ptrs. No locking is necessary. (_nl_cleanup_ctype): New function. * wcsmbs/btowc.c (__btowc): Use get_gconv_fcts instead of update_function_ptrs and a global __wcsmbs_gconv_fcts variable. * wcsmbs/mbrtowc.c (__mbrtowc): Likewise. * wcsmbs/mbsnrtowcs.c (__mbsnrtowcs): Likewise. * wcsmbs/wcrtomb.c (__wcrtomb): Likewise. * wcsmbs/wcsnrtombs.c (__wcsnrtombs): Likewise. * wcsmbs/wcsrtombs.c (__wcsrtombs): Likewise. * wcsmbs/wctob.c (wctob): Likewise. * stdlib/mblen.c (mblen): Likewise. * stdlib/mbtowc.c (mbtowc): Likewise. * stdlib/wctomb.c (wctomb): Likewise. * wcsmbs/mbsrtowcs.c (__mbsrtowcs): Likewise. Remove calls to wcsmbs_get_towc_func and wcsmbs_free_funcs. * wcsmbs/mbsrtowcs_l.c (wcsmbs_get_towc_func, wcsmbs_free_funcs): Removed.
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/* Copyright (C) 1991,1997,1998,1999,2000,2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include <gconv.h>
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#include <wcsmbs/wcsmbsload.h>
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/* Internal state. */
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static mbstate_t state;
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/* Return the length of the multibyte character (if there is one)
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at S which is no longer than N characters.
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The ISO C standard says that the `mblen' function must not change
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the state of the `mbtowc' function. */
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int
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mblen (const char *s, size_t n)
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{
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int result;
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/* If S is NULL the function has to return null or not null
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depending on the encoding having a state depending encoding or
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not. */
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if (s == NULL)
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{
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const struct gconv_fcts *fcts;
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/* Get the conversion functions. */
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fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
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/* Reset the state. */
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memset (&state, '\0', sizeof state);
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result = fcts->towc->__stateful;
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}
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else if (*s == '\0')
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/* According to the ISO C 89 standard this is the expected behaviour. */
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result = 0;
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else
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{
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memset (&state, '\0', sizeof state);
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result = __mbrtowc (NULL, s, n, &state);
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/* The `mbrtowc' functions tell us more than we need. Fold the -1
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and -2 result into -1. */
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if (result < 0)
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result = -1;
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}
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return result;
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}
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