build: move inet_ntop(), inet_pton() emulation into compat

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Acked-by: Samuli Seppänen <samuli@openvpn.net>
Acked-by: David Sommerseth <davids@redhat.com>
Signed-off-by: David Sommerseth <davids@redhat.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/src/compat/compat-inet_pton.c b/src/compat/compat-inet_pton.c
new file mode 100644
index 0000000..cdc8d4b
--- /dev/null
+++ b/src/compat/compat-inet_pton.c
@@ -0,0 +1,79 @@
+/*
+ *  OpenVPN -- An application to securely tunnel IP networks
+ *             over a single UDP port, with support for SSL/TLS-based
+ *             session authentication and key exchange,
+ *             packet encryption, packet authentication, and
+ *             packet compression.
+ *
+ *  Copyright (C) 2011 - David Sommerseth <davids@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  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 (see the file COPYING included with this
+ *  distribution); if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#elif defined(_MSC_VER)
+#include "config-msvc.h"
+#endif
+
+#ifndef HAVE_INET_PTON
+
+#include "compat.h"
+
+#ifdef WIN32
+
+#include <windows.h>
+#include <string.h>
+
+/*
+ * inet_ntop() and inet_pton() wrap-implementations using
+ * WSAAddressToString() and WSAStringToAddress() functions
+ *
+ * this is needed as long as we support running OpenVPN on WinXP
+ */
+
+
+int
+inet_pton(int af, const char *src, void *dst)
+{
+  struct sockaddr_storage ss;
+  int size = sizeof(ss);
+  char src_copy[INET6_ADDRSTRLEN+1];
+
+  ZeroMemory(&ss, sizeof(ss));
+  /* stupid non-const API */
+  strncpy (src_copy, src, INET6_ADDRSTRLEN+1);
+  src_copy[INET6_ADDRSTRLEN] = 0;
+
+  if (WSAStringToAddress(src_copy, af, NULL, (struct sockaddr *)&ss, &size) == 0) {
+    switch(af) {
+      case AF_INET:
+	*(struct in_addr *)dst = ((struct sockaddr_in *)&ss)->sin_addr;
+	return 1;
+      case AF_INET6:
+	*(struct in6_addr *)dst = ((struct sockaddr_in6 *)&ss)->sin6_addr;
+	return 1;
+    }
+  }
+  return 0;
+}
+
+#else
+
+#error no emulation for inet_ntop
+
+#endif
+
+#endif