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+/* resolv.h
+ * DNS resolver code header file.
+ * Authtor Adam Dunkels <adam@dunkels.com>
+ *
+ * Copyright (c) 2002-2003, Adam Dunkels.
+ * All rights reserved.
+ *
+ * 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. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 __UIP_RESOLV_H__
+#define __UIP_RESOLV_H__
+
+#include <sys/types.h>
+#include <net/uip/uipopt.h>
+
+/* Callback function which is called when a hostname is found.
+ *
+ * This function must be implemented by the module that uses the DNS
+ * resolver. It is called when a hostname is found, or when a hostname
+ * was not found.
+ *
+ * name A pointer to the name that was looked up. \param
+ * ipaddr A pointer to a 4-byte array containing the IP address of the
+ * hostname, or NULL if the hostname could not be found.
+ */
+
+extern void resolv_found(char *name, uint16 *ipaddr);
+
+/* Functions. */
+
+extern void resolv_conf(uint16 *dnsserver);
+extern uint16 *resolv_getserver(void);
+extern void resolv_init(void);
+extern uint16 *resolv_lookup(char *name);
+extern void resolv_query(char *name);
+
+#endif /* __UIP_RESOLV_H__ */