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diff --git a/linux/avahi-common/address.h b/linux/avahi-common/address.h
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+#ifndef fooaddresshfoo
+#define fooaddresshfoo
+
+/* $Id: address.h 1477 2007-05-09 19:45:54Z lennart $ */
+
+/***
+  This file is part of avahi.
+ 
+  avahi is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2.1 of the
+  License, or (at your option) any later version.
+ 
+  avahi 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 Lesser General
+  Public License for more details.
+ 
+  You should have received a copy of the GNU Lesser General Public
+  License along with avahi; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+/** \file address.h Definitions and functions to manipulate IP addresses. */
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include <avahi-common/cdecl.h>
+
+AVAHI_C_DECL_BEGIN
+
+/** Protocol family specification, takes the values AVAHI_PROTO_INET, AVAHI_PROTO_INET6, AVAHI_PROTO_UNSPEC */
+typedef int AvahiProtocol;
+
+/** Numeric network interface index. Takes OS dependent values and the special constant AVAHI_IF_UNSPEC  */
+typedef int AvahiIfIndex;
+
+/** Values for AvahiProtocol */
+enum {
+    AVAHI_PROTO_INET = 0,     /**< IPv4 */
+    AVAHI_PROTO_INET6 = 1,   /**< IPv6 */
+    AVAHI_PROTO_UNSPEC = -1  /**< Unspecified/all protocol(s) */
+};
+
+/** Special values for AvahiIfIndex */
+enum {
+    AVAHI_IF_UNSPEC = -1       /**< Unspecified/all interface(s) */
+};
+
+/** Maximum size of an address in string form */
+#define AVAHI_ADDRESS_STR_MAX 40 /* IPv6 Max = 4*8 + 7 + 1 for NUL */
+
+/** Return TRUE if the specified interface index is valid */
+#define AVAHI_IF_VALID(ifindex) (((ifindex) >= 0) || ((ifindex) == AVAHI_IF_UNSPEC))
+
+/** Return TRUE if the specified protocol is valid */
+#define AVAHI_PROTO_VALID(protocol) (((protocol) == AVAHI_PROTO_INET) || ((protocol) == AVAHI_PROTO_INET6) || ((protocol) == AVAHI_PROTO_UNSPEC))
+
+/** An IPv4 address */
+typedef struct AvahiIPv4Address {
+    uint32_t address; /**< Address data in network byte order. */
+} AvahiIPv4Address;
+
+/** An IPv6 address */
+typedef struct AvahiIPv6Address {
+    uint8_t address[16]; /**< Address data */
+} AvahiIPv6Address;
+
+/** Protocol (address family) independent address structure */
+typedef struct AvahiAddress {
+    AvahiProtocol proto; /**< Address family */
+
+    union {
+        AvahiIPv6Address ipv6;  /**< Address when IPv6 */
+        AvahiIPv4Address ipv4;  /**< Address when IPv4 */
+        uint8_t data[1];        /**< Type independant data field */
+    } data;
+} AvahiAddress;
+
+/** @{ \name Comparison */
+
+/** Compare two addresses. Returns 0 when equal, a negative value when a < b, a positive value when a > b. */
+int avahi_address_cmp(const AvahiAddress *a, const AvahiAddress *b);
+
+/** @} */
+
+/** @{ \name String conversion */
+
+/** Convert the specified address *a to a human readable character string, use AVAHI_ADDRESS_STR_MAX to allocate an array of the right size */
+char *avahi_address_snprint(char *ret_s, size_t length, const AvahiAddress *a);
+
+/** Convert the specified human readable character string to an
+ * address structure. Set af to AVAHI_UNSPEC for automatic address
+ * family detection. */
+AvahiAddress *avahi_address_parse(const char *s, AvahiProtocol af, AvahiAddress *ret_addr);
+
+/** @} */
+
+/** \cond fulldocs */
+/** Generate the DNS reverse lookup name for an IPv4 or IPv6 address. */
+char* avahi_reverse_lookup_name(const AvahiAddress *a, char *ret_s, size_t length);
+/** \endcond */
+
+/** @{ \name Protocol/address family handling */
+
+/** Map AVAHI_PROTO_xxx constants to Unix AF_xxx constants */
+int avahi_proto_to_af(AvahiProtocol proto);
+
+/** Map Unix AF_xxx constants to AVAHI_PROTO_xxx constants */
+AvahiProtocol avahi_af_to_proto(int af);
+
+/** Return a textual representation of the specified protocol number. i.e. "IPv4", "IPv6" or "UNSPEC" */
+const char* avahi_proto_to_string(AvahiProtocol proto);
+
+/** @} */
+
+AVAHI_C_DECL_END
+
+#endif