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/* Copyright (C) 2007-2019 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 <libintl.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <libc-symbols.h>
static __thread char *last_value;
static const char *
translate (const char *str, locale_t loc)
{
locale_t oldloc = __uselocale (loc);
const char *res = _(str);
__uselocale (oldloc);
return res;
}
/* Return a string describing the errno code in ERRNUM. */
char *
strerror_l (int errnum, locale_t loc)
{
if (__builtin_expect (errnum < 0 || errnum >= _sys_nerr_internal
|| _sys_errlist_internal[errnum] == NULL, 0))
{
free (last_value);
if (__asprintf (&last_value, "%s%d",
translate ("Unknown error ", loc), errnum) == -1)
last_value = NULL;
return last_value;
}
return (char *) translate (_sys_errlist_internal[errnum], loc);
}
void
__strerror_thread_freeres (void)
{
free (last_value);
}
text_set_element (__libc_subfreeres, __strerror_thread_freeres);
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