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/*      COPYRIGHT, (c) HEWLETT PACKARD CO. 1990,1991 */ 
/*      All rights reserved. No part of this program */ 
/*      may be copied or used without the express    */ 
/*      written consent of HEWLETT PACKARD Corp.     */ 
/* 
**      IN.H 
** 
**      (c) Copyright 1988, The Regents of the University of California. 
** 
**      Copyright (c) Hewlett Packard Company, 1989.  All rights reserved. 
*/ 
 
 
 
/* 
**  Protocol numbers defined for use in the IP header protocol field. 
**  Currently, these are the only supported protocols. 
*/ 
 
#define IPPROTO_TCP             6              /* tcp */ 
#define IPPROTO_UDP             17             /* user datagram protocol */ 
 
 
/* 
**  Port/socket numbers: network standard functions 
*/ 
 
#define IPPORT_ECHO             7 
#define IPPORT_DISCARD          9 
#define IPPORT_SYSTAT           11 
#define IPPORT_DAYTIME          13 
#define IPPORT_NETSTAT          15 
#define IPPORT_FTP              21 
#define IPPORT_TELNET           23 
#define IPPORT_SMTP             25 
#define IPPORT_TIMESERVER       37 
#define IPPORT_NAMESERVER       42 
#define IPPORT_WHOIS            43 
 
 
/* 
**  Port/socket numbers: host specific functions 
*/ 
 
#define IPPORT_TFTP             69 
#define IPPORT_RJE              77 
#define IPPORT_FINGER           79 
#define IPPORT_TTYLINK          87 
#define IPPORT_SUPDUP           95 
 
 
/* 
**  TCP sockets 
*/ 
 
#define IPPORT_EXECSERVER       512 
#define IPPORT_LOGINSERVER      513 
#define IPPORT_CMDSERVER        514 
#define IPPORT_EFSSERVER        520 
 
 
/* 
**  UDP sockets 
*/ 
 
#define IPPORT_BIFFUDP          512 
#define IPPORT_WHOSERVER        513 
#define IPPORT_ROUTESERVER      520 
 
 
/* 
**    Ports < IPPORT_RESERVED are reserved for 
**    privileged processes (e.g. root). 
*/ 
  
#define IPPORT_RESERVED         1024 
 
 
/* 
**     Definitions of bits in internet address integers. 
*/ 
 
#define   IN_CLASSA(i)         ((((long)(i))&0x80000000)==0) 
#define   IN_CLASSA_NET        0xff000000 
#define   IN_CLASSA_NSHIFT     24 
#define   IN_CLASSA_HOST       0x00ffffff 
 
#define   IN_CLASSB(i)         ((((long)(i))&0xc0000000)==0x80000000) 
#define   IN_CLASSB_NET        0xffff0000 
#define   IN_CLASSB_NSHIFT     16 
#define   IN_CLASSB_HOST       0x0000ffff 
 
#define   IN_CLASSC(i)         ((((long)(i))&0xc0000000)==0xc0000000) 
#define   IN_CLASSC_NET        0xffffff00 
#define   IN_CLASSC_NSHIFT     8 
#define   IN_CLASSC_HOST       0x000000ff 
 
#define   INADDR_ANY           0x00000000 
#define   INADDR_BROADCAST     0xffffffff 
 
/* The following conditional compilation allows in_addr to be defined 
** here and in socket.h.  This change was made because the C 6.0 compiler  
** requires sturctures be defined before referenced. */ 
 
#ifndef IN_ADDR_DEFINE 
#define IN_ADDR_DEFINE 
struct in_addr { 
    union { 
        struct { unsigned char s_b1, s_b2, s_b3, s_b4; } S_un_b; 
        struct { unsigned short s_w1, s_w2; } S_un_w; 
        unsigned long S_addr; 
    } S_un; 
}; 
#endif  
         
#define s_addr  S_un.S_addr             /* for most uses */ 
#define s_host  S_un.S_un_b.s_b2        /* host on imp */ 
#define s_net   S_un.S_un_b.s_b1        /* network */ 
#define s_imp   S_un.S_un_w.s_w2        /* imp */ 
#define s_impno S_un.S_un_b.s_b4        /* imp # */ 
#define s_lh    S_un.S_un_b.s_b3        /* logical host */ 
 
 
struct sockaddr_in { 
    short           sin_family; 
    unsigned short  sin_port; 
    struct in_addr  sin_addr; 
    char            sin_zero[8]; 
};