text: /*
   * Copyright (c) 2013 Jiri Svoboda
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * - Redistributions of source code must retain the above copyright
   *   notice, this list of conditions and the following disclaimer.
   * - 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.
   * - 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.
   */
  
  /** @addtogroup libc
   * @{
   */
  /** @file
   */
  
  #ifndef _LIBC_INET_ADDR_H_
  #define _LIBC_INET_ADDR_H_
  
  #include <errno.h>
  #include <stdint.h>
  
  typedef uint32_t addr32_t;
  typedef uint8_t addr48_t[6];
  typedef uint8_t addr128_t[16];
  
  typedef enum {
  	/** Any IP protocol version */
  	ip_any,
  	/** IPv4 */
  	ip_v4,
  	/** IPv6 */
  	ip_v6
  } ip_ver_t;
  
  /** Node address */
  typedef struct {
  	/** IP version */
  	ip_ver_t version;
  	union {
  		addr32_t addr;
  		addr128_t addr6;
  	};
  } inet_addr_t;
  
  /** Network address */
  typedef struct {
  	/** IP version */
  	ip_ver_t version;
  
  	/** Address */
  	union {
  		addr32_t addr;
  		addr128_t addr6;
  	};
  
  	/** Number of valid bits */
  	uint8_t prefix;
  } inet_naddr_t;
  
  extern const addr32_t addr32_broadcast_all_hosts;
  extern const addr48_t addr48_broadcast;
  
  extern void addr48(const addr48_t, addr48_t);
  extern void addr128(const addr128_t, addr128_t);
  
  extern int addr48_compare(const addr48_t, const addr48_t);
  extern int addr128_compare(const addr128_t, const addr128_t);
  
  extern void addr48_solicited_node(const addr128_t, addr48_t);
  
  extern void host2addr128_t_be(const addr128_t, addr128_t);
  extern void addr128_t_be2host(const addr128_t, addr128_t);
  
  extern void inet_addr(inet_addr_t *, uint8_t, uint8_t, uint8_t, uint8_t);
  extern void inet_naddr(inet_naddr_t *, uint8_t, uint8_t, uint8_t, uint8_t,
      uint8_t);
  
  extern void inet_addr6(inet_addr_t *, uint16_t, uint16_t, uint16_t, uint16_t,
      uint16_t, uint16_t, uint16_t, uint16_t);
  extern void inet_naddr6(inet_naddr_t *, uint16_t, uint16_t, uint16_t, uint16_t,
      uint16_t, uint16_t, uint16_t, uint16_t, uint8_t);
  
  extern void inet_naddr_addr(const inet_naddr_t *, inet_addr_t *);
  extern void inet_addr_naddr(const inet_addr_t *, uint8_t, inet_naddr_t *);
  
  extern void inet_addr_any(inet_addr_t *);
  extern void inet_naddr_any(inet_naddr_t *);
  
  extern int inet_addr_compare(const inet_addr_t *, const inet_addr_t *);
  extern int inet_addr_is_any(const inet_addr_t *);
  
  extern int inet_naddr_compare(const inet_naddr_t *, const inet_addr_t *);
  extern int inet_naddr_compare_mask(const inet_naddr_t *, const inet_addr_t *);
  
  extern errno_t inet_addr_parse(const char *, inet_addr_t *, char **);
  extern errno_t inet_naddr_parse(const char *, inet_naddr_t *, char **);
  
  extern errno_t inet_addr_format(const inet_addr_t *, char **);
  extern errno_t inet_naddr_format(const inet_naddr_t *, char **);
  
  extern ip_ver_t inet_addr_get(const inet_addr_t *, addr32_t *, addr128_t *);
  extern ip_ver_t inet_naddr_get(const inet_naddr_t *, addr32_t *, addr128_t *,
      uint8_t *);
  
  extern void inet_addr_set(addr32_t, inet_addr_t *);
  extern void inet_naddr_set(addr32_t, uint8_t, inet_naddr_t *);
  
  extern void inet_addr_set6(addr128_t, inet_addr_t *);
  extern void inet_naddr_set6(addr128_t, uint8_t, inet_naddr_t *);
  
  #endif
  
  /** @}
   */
  