address.h

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#ifndef fooaddresshfoo
#define fooaddresshfoo

/***
  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.
***/

#include <inttypes.h>
#include <sys/types.h>

#include <avahi-common/cdecl.h>

AVAHI_C_DECL_BEGIN

typedef int AvahiProtocol;

typedef int AvahiIfIndex;

enum {
    AVAHI_PROTO_INET = 0,     
    AVAHI_PROTO_INET6 = 1,   
    AVAHI_PROTO_UNSPEC = -1  
};

enum {
    AVAHI_IF_UNSPEC = -1       
};

#define AVAHI_ADDRESS_STR_MAX 40 /* IPv6 Max = 4*8 + 7 + 1 for NUL */

#define AVAHI_IF_VALID(ifindex) (((ifindex) >= 0) || ((ifindex) == AVAHI_IF_UNSPEC))

#define AVAHI_PROTO_VALID(protocol) (((protocol) == AVAHI_PROTO_INET) || ((protocol) == AVAHI_PROTO_INET6) || ((protocol) == AVAHI_PROTO_UNSPEC))

typedef struct AvahiIPv4Address {
    uint32_t address; 
} AvahiIPv4Address;

typedef struct AvahiIPv6Address {
    uint8_t address[16]; 
} AvahiIPv6Address;

typedef struct AvahiAddress {
    AvahiProtocol proto; 
    union {
        AvahiIPv6Address ipv6;  
        AvahiIPv4Address ipv4;  
        uint8_t data[1];        
    } data;
} AvahiAddress;

int avahi_address_cmp(const AvahiAddress *a, const AvahiAddress *b);

char *avahi_address_snprint(char *ret_s, size_t length, const AvahiAddress *a);

AvahiAddress *avahi_address_parse(const char *s, AvahiProtocol af, AvahiAddress *ret_addr);

char* avahi_reverse_lookup_name(const AvahiAddress *a, char *ret_s, size_t length);
int avahi_proto_to_af(AvahiProtocol proto);

AvahiProtocol avahi_af_to_proto(int af);

const char* avahi_proto_to_string(AvahiProtocol proto);

AVAHI_C_DECL_END

#endif