wrapper for all generic network headers that have different names

and locations on the various systems.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89379 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/network.h

+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2007, Digium, Inc.
+ *
+ * Luigi Rizzo
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ * \brief Wrapper for network related headers,
+ * masking differences between various operating systems.
+ */
+
+#ifndef _ASTERISK_NETWORK_H
+#define _ASTERISK_NETWORK_H
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+#ifdef HAVE_WINSOCK2_H_NOT
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#elif defined(HAVE_WINSOCK_H)
+#include <winsock.h>
+typedef int socklen_t;
+
+#else
+#include <arpa/inet.h>  /* include early to override inet_ntoa */
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#include <sys/socket.h>  
+#endif
+
+#ifndef HAVE_INET_ATON
+int inet_aton(const char *cp, struct in_addr *pin);
+#endif
+
+#ifndef IFNAMSIZ
+#define	IFNAMSIZ	16
+#endif
+
+#ifndef MAXHOSTNAMELEN
+#define	MAXHOSTNAMELEN	256
+#endif
+
+/*!
+ * \brief thread-safe replacement for inet_ntoa().
+ *
+ * \note It is very important to note that even though this is a thread-safe
+ *       replacement for inet_ntoa(), it is *not* reentrant.  In a single
+ *       thread, the result from a previous call to this function is no longer
+ *       valid once it is called again.  If the result from multiple calls to
+ *       this function need to be kept or used at once, then the result must be
+ *       copied to a local buffer before calling this function again.
+ */
+const char *ast_inet_ntoa(struct in_addr ia);
+
+#ifdef inet_ntoa
+#undef inet_ntoa
+#endif
+#define inet_ntoa __dont__use__inet_ntoa__use__ast_inet_ntoa__instead__
+
+/*! \brief Compares the source address and port of two sockaddr_in */
+static force_inline int inaddrcmp(const struct sockaddr_in *sin1, const struct sockaddr_in *sin2)
+{
+        return ((sin1->sin_addr.s_addr != sin2->sin_addr.s_addr)
+                || (sin1->sin_port != sin2->sin_port));
+}
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+
+#endif /* _ASTERISK_NETWORK_H */