ip.h

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#ifndef IP_H
#define IP_H

#include "uint32.h"
#include "stralloc.h"

#define IPFMT 40
#define V4MAPPREFIX "::ffff:"
#define HOSTNAMELEN 1025

struct ip_address { unsigned char d[4]; };      /* 4 decimal pieces */
struct ip6_address { unsigned char d[16]; };    /* 16 hex pieces */

unsigned int ip4_fmt(char *,struct ip_address *);
unsigned int ip4_scan(struct ip_address *,char *);
unsigned int ip4_scanbracket(struct ip_address *,char *);
unsigned int ip4_bitstring(stralloc *,struct ip_address *,int);

const static char ip4loopback[4] = {127,0,0,1};

unsigned int ip6_fmt(char *,struct ip6_address *);
unsigned int ip6_scan(struct ip6_address *,char *);
unsigned int ip6_scanbracket(struct ip6_address *,char *);
unsigned int ip6_bitstring(stralloc *,struct ip6_address *,int);

const static unsigned char V4mappedprefix[12]={0,0,0,0,0,0,0,0,0,0,0xff,0xff};
const static unsigned char V6loopback[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1};
const static unsigned char V6any[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

#endif