mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +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>
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/* Convert characters in input buffer using conversion descriptor to
|
|
output buffer.
|
|
Copyright (C) 1997-2022 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 <assert.h>
|
|
#include <dlfcn.h>
|
|
#include <stddef.h>
|
|
#include <sys/param.h>
|
|
|
|
#include <gconv_int.h>
|
|
#include <pointer_guard.h>
|
|
|
|
|
|
int
|
|
__gconv (__gconv_t cd, const unsigned char **inbuf,
|
|
const unsigned char *inbufend, unsigned char **outbuf,
|
|
unsigned char *outbufend, size_t *irreversible)
|
|
{
|
|
size_t last_step;
|
|
int result;
|
|
|
|
if (cd == (__gconv_t) -1L)
|
|
return __GCONV_ILLEGAL_DESCRIPTOR;
|
|
|
|
last_step = cd->__nsteps - 1;
|
|
|
|
assert (irreversible != NULL);
|
|
*irreversible = 0;
|
|
|
|
cd->__data[last_step].__outbuf = outbuf != NULL ? *outbuf : NULL;
|
|
cd->__data[last_step].__outbufend = outbufend;
|
|
|
|
__gconv_fct fct = cd->__steps->__fct;
|
|
if (cd->__steps->__shlib_handle != NULL)
|
|
PTR_DEMANGLE (fct);
|
|
|
|
if (inbuf == NULL || *inbuf == NULL)
|
|
{
|
|
/* We just flush. */
|
|
result = DL_CALL_FCT (fct,
|
|
(cd->__steps, cd->__data, NULL, NULL, NULL,
|
|
irreversible,
|
|
cd->__data[last_step].__outbuf == NULL ? 2 : 1,
|
|
0));
|
|
|
|
/* If the flush was successful clear the rest of the state. */
|
|
if (result == __GCONV_OK)
|
|
for (size_t cnt = 0; cnt <= last_step; ++cnt)
|
|
cd->__data[cnt].__invocation_counter = 0;
|
|
}
|
|
else
|
|
{
|
|
const unsigned char *last_start;
|
|
|
|
assert (outbuf != NULL && *outbuf != NULL);
|
|
|
|
do
|
|
{
|
|
last_start = *inbuf;
|
|
result = DL_CALL_FCT (fct,
|
|
(cd->__steps, cd->__data, inbuf, inbufend,
|
|
NULL, irreversible, 0, 0));
|
|
}
|
|
while (result == __GCONV_EMPTY_INPUT && last_start != *inbuf
|
|
&& *inbuf + cd->__steps->__min_needed_from <= inbufend);
|
|
}
|
|
|
|
if (outbuf != NULL && *outbuf != NULL)
|
|
*outbuf = cd->__data[last_step].__outbuf;
|
|
|
|
return result;
|
|
}
|