1/*
2 *  OpenVPN -- An application to securely tunnel IP networks
3 *             over a single UDP port, with support for SSL/TLS-based
4 *             session authentication and key exchange,
5 *             packet encryption, packet authentication, and
6 *             packet compression.
7 *
8 *  Copyright (C) 2011 - David Sommerseth <davids@redhat.com>
9 *
10 *  This program is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 2
12 *  as published by the Free Software Foundation.
13 *
14 *  This program is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this program (see the file COPYING included with this
21 *  distribution); if not, write to the Free Software Foundation, Inc.,
22 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
23 */
24
25#ifdef HAVE_CONFIG_H
26#include "config.h"
27#elif defined(_MSC_VER)
28#include "config-msvc.h"
29#endif
30
31#ifndef HAVE_INET_PTON
32
33#include "compat.h"
34
35#ifdef WIN32
36
37#include <windows.h>
38#include <string.h>
39
40/*
41 * inet_ntop() and inet_pton() wrap-implementations using
42 * WSAAddressToString() and WSAStringToAddress() functions
43 *
44 * this is needed as long as we support running OpenVPN on WinXP
45 */
46
47
48int
49inet_pton(int af, const char *src, void *dst)
50{
51  struct sockaddr_storage ss;
52  int size = sizeof(ss);
53  char src_copy[INET6_ADDRSTRLEN+1];
54
55  ZeroMemory(&ss, sizeof(ss));
56  /* stupid non-const API */
57  strncpy (src_copy, src, INET6_ADDRSTRLEN+1);
58  src_copy[INET6_ADDRSTRLEN] = 0;
59
60  if (WSAStringToAddress(src_copy, af, NULL, (struct sockaddr *)&ss, &size) == 0) {
61    switch(af) {
62      case AF_INET:
63	*(struct in_addr *)dst = ((struct sockaddr_in *)&ss)->sin_addr;
64	return 1;
65      case AF_INET6:
66	*(struct in6_addr *)dst = ((struct sockaddr_in6 *)&ss)->sin6_addr;
67	return 1;
68    }
69  }
70  return 0;
71}
72
73#else
74
75#error no emulation for inet_ntop
76
77#endif
78
79#endif
80