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/* Copyright (C) 2007-2024 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 <string.h>
#include <tls-internal.h>
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)
{
int saved_errno = errno;
char *err = (char *) __get_errlist (errnum);
if (__glibc_unlikely (err == NULL))
{
struct tls_internal_t *tls_internal = __glibc_tls_internal ();
free (tls_internal->strerror_l_buf);
if (__asprintf (&tls_internal->strerror_l_buf, "%s%d",
translate ("Unknown error ", loc), errnum) > 0)
err = tls_internal->strerror_l_buf;
else
{
/* The memory was freed above. */
tls_internal->strerror_l_buf = NULL;
/* Provide a fallback translation. */
err = (char *) translate ("Unknown error", loc);
}
}
else
err = (char *) translate (err, loc);
__set_errno (saved_errno);
return err;
}
weak_alias (__strerror_l, strerror_l)
libc_hidden_def (__strerror_l)
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