/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. 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 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <dlfcn.h> #include <gconv.h> #include <stdio.h> #include <string.h> #include <wchar.h> #include <wcsmbsload.h> #include <limits.h> wint_t __btowc (c) int c; { wchar_t result; struct __gconv_step_data data; unsigned char inbuf[1]; const unsigned char *inptr = inbuf; size_t dummy; int status; /* If the parameter does not fit into one byte or it is the EOF value we can give the answer now. */ if (c < SCHAR_MIN || c > UCHAR_MAX || c == EOF) return WEOF; /* Tell where we want the result. */ data.__outbuf = (unsigned char *) &result; data.__outbufend = data.__outbuf + sizeof (wchar_t); data.__invocation_counter = 0; data.__internal_use = 1; data.__flags = __GCONV_IS_LAST; data.__statep = &data.__state; data.__trans = NULL; /* Make sure we start in the initial state. */ memset (&data.__state, '\0', sizeof (mbstate_t)); /* Make sure we use the correct function. */ update_conversion_ptrs (); /* Create the input string. */ inbuf[0] = c; status = DL_CALL_FCT (__wcsmbs_gconv_fcts.towc->__fct, (__wcsmbs_gconv_fcts.towc, &data, &inptr, inptr + 1, NULL, &dummy, 0, 1)); /* The conversion failed. */ if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT && status != __GCONV_EMPTY_INPUT) result = WEOF; return result; } weak_alias (__btowc, btowc)