diff options
Diffstat (limited to 'wcsmbs/mbrtowc.c')
| -rw-r--r-- | wcsmbs/mbrtowc.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/wcsmbs/mbrtowc.c b/wcsmbs/mbrtowc.c deleted file mode 100644 index ea207bd0c6..0000000000 --- a/wcsmbs/mbrtowc.c +++ /dev/null @@ -1,129 +0,0 @@ -/* Copyright (C) 1996-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <assert.h> -#include <dlfcn.h> -#include <errno.h> -#include <gconv.h> -#include <wchar.h> -#include <wcsmbsload.h> - -#include <sysdep.h> - -#ifndef EILSEQ -# define EILSEQ EINVAL -#endif - -/* This is the private state used if PS is NULL. */ -static mbstate_t state; - -size_t -__mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) -{ - wchar_t buf[1]; - struct __gconv_step_data data; - int status; - size_t result; - size_t dummy; - const unsigned char *inbuf, *endbuf; - unsigned char *outbuf = (unsigned char *) (pwc ?: buf); - const struct gconv_fcts *fcts; - - /* Set information for this step. */ - data.__invocation_counter = 0; - data.__internal_use = 1; - data.__flags = __GCONV_IS_LAST; - data.__statep = ps ?: &state; - - /* A first special case is if S is NULL. This means put PS in the - initial state. */ - if (s == NULL) - { - outbuf = (unsigned char *) buf; - s = ""; - n = 1; - } - - if (n == 0) - return (size_t) -2; - - /* Tell where we want the result. */ - data.__outbuf = outbuf; - data.__outbufend = outbuf + sizeof (wchar_t); - - /* Get the conversion functions. */ - fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE)); - - /* Do a normal conversion. */ - inbuf = (const unsigned char *) s; - endbuf = inbuf + n; - if (__glibc_unlikely (endbuf < inbuf)) - { - endbuf = (const unsigned char *) ~(uintptr_t) 0; - if (endbuf == inbuf) - goto ilseq; - } - __gconv_fct fct = fcts->towc->__fct; -#ifdef PTR_DEMANGLE - if (fcts->towc->__shlib_handle != NULL) - PTR_DEMANGLE (fct); -#endif - status = DL_CALL_FCT (fct, (fcts->towc, &data, &inbuf, endbuf, - NULL, &dummy, 0, 1)); - - /* There must not be any problems with the conversion but illegal input - characters. The output buffer must be large enough, otherwise the - definition of MB_CUR_MAX is not correct. All the other possible - errors also must not happen. */ - 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_EMPTY_INPUT - || status == __GCONV_FULL_OUTPUT) - { - if (data.__outbuf != (unsigned char *) outbuf - && *(wchar_t *) outbuf == L'\0') - { - /* The converted character is the NUL character. */ - assert (__mbsinit (data.__statep)); - result = 0; - } - else - result = inbuf - (const unsigned char *) s; - } - else if (status == __GCONV_INCOMPLETE_INPUT) - result = (size_t) -2; - else - { - ilseq: - result = (size_t) -1; - __set_errno (EILSEQ); - } - - return result; -} -libc_hidden_def (__mbrtowc) -weak_alias (__mbrtowc, mbrtowc) -libc_hidden_weak (mbrtowc) - -/* There should be no difference between the UTF-32 handling required - by mbrtoc32 and the wchar_t handling which has long since been - implemented in mbrtowc. */ -weak_alias (__mbrtowc, mbrtoc32) |