Initial include/arpa directory

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@322 42af7a65-404d-4744-a932-0658087f49c3

include/arpa/inet.h

+/****************************************************************************
+ * arpa/inet.h
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __ARPA_INET_H
+#define __ARPA_INET_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+
+/****************************************************************************
+ * Public Type Definitions
+ ****************************************************************************/
+
+/* This macro to convert a 16/32-bit constant values quantity from host byte
+ * order to network byte order.  The 16-bit version of this macro is require
+ * for uIP:
+ *
+ *   Author Adam Dunkels <adam@dunkels.com>
+ *   Copyright (c) 2001-2003, Adam Dunkels.
+ *   All rights reserved.
+ */
+
+#ifdef CONFIG_ENDIAN_BIG
+# define HTONS(ns) (ns)
+# define HTONL(nl) (nl)
+#else
+# define HTONS(ns) \
+  (uint16)((((uint16) (ns)) << 8) | (((uint16) (ns)) >> 8))
+# define HTONL(nl) htonl(nl) \
+  ((uint32)HTONS((uint16)((hs) << 16)) | (uint32)HTONS((uint16)((hs) & 0xffff)))
+#endif
+
+#define NTOHS(hs) HTONS(hs)
+#define NTOHL(hl) NTOHL(hl)
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/* Functions to convert between nost and network byte ordering */
+
+EXTERN uint32      ntohl (uint32 nl);
+EXTERN uint16      ntohs (uint16 ns);
+EXTERN uint32      htonl (uint32 hl);
+EXTERN uint16      htons (uint16 hs);
+
+/* Functions to manipulate address representations */
+
+EXTERN int         inet_aton(const char *cp, struct in_addr *inp);
+EXTERN in_addr_t   inet_addr(const char *cp);
+EXTERN in_addr_t   inet_network(const char *cp);
+EXTERN char       *inet_ntoa(struct in_addr in);
+EXTERN struct in_addr inet_makeaddr(in_addr_t net, in_addr_t host);
+EXTERN in_addr_t   inet_lnaof(struct in_addr in);
+EXTERN in_addr_t   inet_netof(struct in_addr in);
+EXTERN int         inet_pton(int af, const char *cp, void *buf);
+EXTERN const char *inet_ntop(int af, const void *cp, char *buf, socklen_t len);
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ARPA_INET_H */