mirror of
https://sourceware.org/git/glibc.git
synced 2024-09-20 08:30:00 +00:00
58548b9d68
In the future, this will result in a compilation failure if the macros are unexpectedly undefined (due to header inclusion ordering or header inclusion missing altogether). Assembler sources are more difficult to convert. In many cases, they are hand-optimized for the mangling and no-mangling variants, which is why they are not converted. sysdeps/s390/s390-32/__longjmp.c and sysdeps/s390/s390-64/__longjmp.c are special: These are C sources, but most of the implementation is in assembler, so the PTR_DEMANGLE macro has to be undefined in some cases, to match the assembler style. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* Copyright (C) 1996-2022 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 <dlfcn.h>
|
|
#include <gconv.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include <wcsmbsload.h>
|
|
|
|
#include <pointer_guard.h>
|
|
|
|
|
|
int
|
|
wctob (wint_t c)
|
|
{
|
|
unsigned char buf[MB_LEN_MAX];
|
|
struct __gconv_step_data data;
|
|
wchar_t inbuf[1];
|
|
wchar_t *inptr = inbuf;
|
|
size_t dummy;
|
|
int status;
|
|
const struct gconv_fcts *fcts;
|
|
|
|
if (c == WEOF)
|
|
return EOF;
|
|
|
|
/* We know that only ASCII compatible encodings are used for the
|
|
locale and that the wide character encoding is ISO 10646. */
|
|
if (c >= L'\0' && c <= L'\x7f')
|
|
return (int) c;
|
|
|
|
/* Tell where we want the result. */
|
|
data.__outbuf = buf;
|
|
data.__outbufend = buf + MB_LEN_MAX;
|
|
data.__invocation_counter = 0;
|
|
data.__internal_use = 1;
|
|
data.__flags = __GCONV_IS_LAST;
|
|
data.__statep = &data.__state;
|
|
|
|
/* Make sure we start in the initial state. */
|
|
memset (&data.__state, '\0', sizeof (mbstate_t));
|
|
|
|
/* Get the conversion functions. */
|
|
fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
|
|
|
|
/* Create the input string. */
|
|
inbuf[0] = c;
|
|
|
|
const unsigned char *argptr = (const unsigned char *) inptr;
|
|
__gconv_fct fct = fcts->tomb->__fct;
|
|
if (fcts->tomb->__shlib_handle != NULL)
|
|
PTR_DEMANGLE (fct);
|
|
status = DL_CALL_FCT (fct,
|
|
(fcts->tomb, &data, &argptr,
|
|
argptr + sizeof (inbuf[0]), NULL, &dummy, 0, 1));
|
|
|
|
/* The conversion failed or the output is too long. */
|
|
if ((status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
|
|
&& status != __GCONV_EMPTY_INPUT)
|
|
|| data.__outbuf != (unsigned char *) (buf + 1))
|
|
return EOF;
|
|
|
|
return buf[0];
|
|
}
|