1/* Host support routines for MinGW, for GDB, the GNU debugger.
2
3   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#include "defs.h"
21
22#include "gdb_string.h"
23
24#include "gdb_select.h"
25
26/* The strerror() function can return NULL for errno values that are
27   out of range.  Provide a "safe" version that always returns a
28   printable string. */
29
30char *
31safe_strerror (int errnum)
32{
33  char *msg;
34
35  msg = strerror (errnum);
36  if (msg == NULL)
37    {
38      static char buf[32];
39      xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
40      msg = buf;
41    }
42  return (msg);
43}
44
45/* Wrapper for select.  Nothing special needed on POSIX platforms.  */
46
47int
48gdb_select (int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
49	    struct timeval *timeout)
50{
51  return select (n, readfds, writefds, exceptfds, timeout);
52}
53