|
Packit |
6c4009 |
/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <libintl.h>
|
|
Packit |
6c4009 |
#include <stdbool.h>
|
|
Packit |
6c4009 |
#include <stdio.h>
|
|
Packit |
6c4009 |
#include <stdlib.h>
|
|
Packit |
6c4009 |
#include <string.h>
|
|
Packit |
6c4009 |
#include <sys/param.h>
|
|
Packit |
6c4009 |
#include <_itoa.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* It is critical here that we always use the `dcgettext' function for
|
|
Packit |
6c4009 |
the message translation. Since <libintl.h> only defines the macro
|
|
Packit |
6c4009 |
`dgettext' to use `dcgettext' for optimizing programs this is not
|
|
Packit |
6c4009 |
always guaranteed. */
|
|
Packit |
6c4009 |
#ifndef dgettext
|
|
Packit |
6c4009 |
# include <locale.h> /* We need LC_MESSAGES. */
|
|
Packit |
6c4009 |
# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES)
|
|
Packit |
6c4009 |
#endif
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Return a string describing the errno code in ERRNUM. */
|
|
Packit |
6c4009 |
char *
|
|
Packit |
6c4009 |
__strerror_r (int errnum, char *buf, size_t buflen)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
if (__builtin_expect (errnum < 0 || errnum >= _sys_nerr_internal
|
|
Packit |
6c4009 |
|| _sys_errlist_internal[errnum] == NULL, 0))
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
/* Buffer we use to print the number in. For a maximum size for
|
|
Packit |
6c4009 |
`int' of 8 bytes we never need more than 20 digits. */
|
|
Packit |
6c4009 |
char numbuf[21];
|
|
Packit |
6c4009 |
const char *unk = _("Unknown error ");
|
|
Packit |
6c4009 |
size_t unklen = strlen (unk);
|
|
Packit |
6c4009 |
char *p, *q;
|
|
Packit |
6c4009 |
bool negative = errnum < 0;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
numbuf[20] = '\0';
|
|
Packit |
6c4009 |
p = _itoa_word (abs (errnum), &numbuf[20], 10, 0);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Now construct the result while taking care for the destination
|
|
Packit |
6c4009 |
buffer size. */
|
|
Packit |
6c4009 |
q = __mempcpy (buf, unk, MIN (unklen, buflen));
|
|
Packit |
6c4009 |
if (negative && unklen < buflen)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
*q++ = '-';
|
|
Packit |
6c4009 |
++unklen;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
if (unklen < buflen)
|
|
Packit |
6c4009 |
memcpy (q, p, MIN ((size_t) (&numbuf[21] - p), buflen - unklen));
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Terminate the string in any case. */
|
|
Packit |
6c4009 |
if (buflen > 0)
|
|
Packit |
6c4009 |
buf[buflen - 1] = '\0';
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return buf;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return (char *) _(_sys_errlist_internal[errnum]);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
weak_alias (__strerror_r, strerror_r)
|
|
Packit |
6c4009 |
libc_hidden_def (__strerror_r)
|