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/* Safe version of strerror for GDB, the GNU debugger.
Copyright (C) 2006-2019 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "common-defs.h"
#include <string.h>
/* Implementation of safe_strerror as defined in common-utils.h. */
const char *
safe_strerror (int errnum)
{
static thread_local char buf[1024];
/* Assign the return value to an int, so we get an error if we accidentally
get the wrong version of this function (glibc has two of them...). */
int ret = strerror_r (errnum, buf, sizeof (buf));
if (ret == 0)
return buf;
xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
return buf;
}
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