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/* Copyright (C) 1991, 1993, 1995-1998, 2000, 2002, 2004, 2010, 2011
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <assert.h>
#include <errno.h>
#include <libintl.h>
#include <stdio.h>
#include <string.h>
#include <sys/param.h>
#include <stdio-common/_itoa.h>
/* It is critical here that we always use the `dcgettext' function for
the message translation. Since <libintl.h> only defines the macro
`dgettext' to use `dcgettext' for optimizing programs this is not
always guaranteed. */
#ifndef dgettext
# include <locale.h> /* We need LC_MESSAGES. */
# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES)
#endif
/* Fill buf with a string describing the errno code in ERRNUM. */
int
__xpg_strerror_r (int errnum, char *buf, size_t buflen)
{
const char *estr = __strerror_r (errnum, buf, buflen);
size_t estrlen = strlen (estr);
if (errnum < 0 || errnum >= _sys_nerr_internal
|| _sys_errlist_internal[errnum] == NULL)
return EINVAL;
assert (estr != buf);
/* Terminate the string in any case. */
*((char *) __mempcpy (buf, estr, MIN (buflen - 1, estrlen))) = '\0';
return buflen <= estrlen ? ERANGE : 0;
}
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