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/* $Id: ip4addr.h,v 1.8 2005-12-19 14:36:21 mjt Exp $
* common #include header for various helper routines to
* manipulate IP4 addreses
*/
#ifndef _IP4ADDR_H_INCLUDED
#define _IP4ADDR_H_INCLUDED
#include "config.h"
#if !defined(NO_STDINT_H)
# include <stdint.h>
typedef uint32_t ip4addr_t; /* host byte order */
#elif SIZEOF_SHORT == 4
typedef unsigned short ip4addr_t;
#else
typedef unsigned ip4addr_t;
#endif
/* parse string to ip4addr_t (if np specified, return
* pointer to the next characted in it)...: */
/* ..single address, like inet_aton/inet_addr,
* return #bits in _prefix_ (32,24,16 or 8) or <0 on error */
int ip4addr(const char *s, ip4addr_t *ap, char **np);
/* ..prefix, 1.2.3.4 or 1.2.3 or 1.2, return number of bits or <0 */
int ip4prefix(const char *s, ip4addr_t *ap, char **np);
/* ..CIDR range, return number of bits or <0 if error.
* does NOT zerofill hostpart of *ap - &= ip4mask(bits) for this */
int ip4cidr(const char *s, ip4addr_t *ap, char **np);
/* ..range of addresses (inclusive) or CIDR, return #bits if
* that was CIDR or prefix or 32 if plain range, <0 on error.
* does NOT zerofill hostpart of *ap - &= ip4mask(bits) for this.
* *bp will be real end of range regardless of netmask */
int ip4range(const char *s, ip4addr_t *ap, ip4addr_t *bp, char **np);
/* inet_ntoa() */
const char *ip4atos(ip4addr_t a);
/* convert #bits into mask */
/* note: works for bits < 32 only! */
extern const ip4addr_t ip4addr_cidr_netmasks[33];
#define ip4mask(bits) ip4addr_cidr_netmasks[bits]
#define IP4A_LOOPBACK 0x7f000000
#endif
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