/* Copyright (C) 1991-2019 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or 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 Lesser General Public License for more details. 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 <stdlib.h> #include <string.h> #include <wchar.h> #include <gconv.h> #include <wcsmbs/wcsmbsload.h> /* Shared with __wctomb_chk. */ mbstate_t __wctomb_state attribute_hidden; /* Convert WCHAR into its multibyte character representation, putting this in S and returning its length. Attention: this function should NEVER be intentionally used. The interface is completely stupid. The state is shared between all conversion functions. You should use instead the restartable version `wcrtomb'. */ int wctomb (char *s, wchar_t wchar) { /* If S is NULL the function has to return null or not null depending on the encoding having a state depending encoding or not. */ if (s == NULL) { const struct gconv_fcts *fcts; /* Get the conversion functions. */ fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE)); /* This is an extension in the Unix standard which does not directly violate ISO C. */ memset (&__wctomb_state, '\0', sizeof __wctomb_state); return fcts->tomb->__stateful; } return __wcrtomb (s, wchar, &__wctomb_state); } libc_hidden_def (wctomb)