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#pragma src "/sys/src/libip"
#pragma lib "libip.a"
enum
{
IPaddrlen= 16,
IPv4addrlen= 4,
IPv4off= 12,
IPllen= 4,
};
/*
* for reading /net/ipifc
*/
typedef struct Ipifc Ipifc;
typedef struct Ipifcs Ipifcs;
struct Ipifc
{
char dev[64];
uchar ip[IPaddrlen];
uchar mask[IPaddrlen];
uchar net[IPaddrlen]; /* ip & mask */
Ipifc *next;
};
struct Ipifcs
{
Ipifc *first;
Ipifc *last;
};
/*
* user level udp headers
*/
enum
{
Udphdrsize= 36, /* size of a Udphdr */
};
typedef struct Udphdr Udphdr;
struct Udphdr
{
uchar raddr[IPaddrlen]; /* remote address and port */
uchar laddr[IPaddrlen]; /* local address and port */
uchar rport[2];
uchar lport[2];
};
uchar* defmask(uchar*);
void maskip(uchar*, uchar*, uchar*);
int eipconv(va_list*, Fconv*);
ulong parseip(uchar*, char*);
ulong parseipmask(uchar*, char*);
int parseether(uchar*, char*);
int myipaddr(uchar*, char*);
int myetheraddr(uchar*, char*);
void readipifc(char*, Ipifcs*);
void hnputl(void*, uint);
void hnputs(void*, ushort);
uint nhgetl(void*);
ushort nhgets(void*);
#define ipcmp(x, y) memcmp(x, y, IPaddrlen)
#define ipmove(x, y) memmove(x, y, IPaddrlen)
extern uchar IPv4bcast[IPaddrlen];
extern uchar IPv4bcastobs[IPaddrlen];
extern uchar IPv4allsys[IPaddrlen];
extern uchar IPv4allrouter[IPaddrlen];
extern uchar IPnoaddr[IPaddrlen];
extern uchar v4prefix[IPaddrlen];
extern uchar IPallbits[IPaddrlen];
#define CLASS(p) ((*(uchar*)(p))>>6)
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