| [8] | 1 | UNIT Internet;
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| 2 |
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| 3 | INTERFACE
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| 4 |
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| 5 | /*
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| 6 | * Protocols
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| 7 | */
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| 8 | CONST
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| 9 | IPPROTO_IP =0; /* dummy for IP */
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| 10 | IPPROTO_ICMP =1; /* control message protocol */
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| 11 | IPPROTO_GGP =3; /* gateway^2 (deprecated) */
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| 12 | IPPROTO_TCP =6; /* tcp */
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| 13 | IPPROTO_EGP =8; /* exterior gateway protocol */
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| 14 | IPPROTO_PUP =12; /* pup */
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| 15 | IPPROTO_UDP =17; /* user datagram protocol */
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| 16 | IPPROTO_IDP =22; /* xns idp */
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| 17 |
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| 18 | IPPROTO_RAW =255; /* raw IP packet */
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| 19 | IPPROTO_MAX =256;
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| 20 |
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| 21 |
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| 22 | /*
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| 23 | * Ports < IPPORT_RESERVED are reserved for
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| 24 | * privileged processes (e.g. root).
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| 25 | * Ports > IPPORT_USERRESERVED are reserved
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| 26 | * for servers, not necessarily privileged.
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| 27 | */
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| 28 | CONST
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| 29 | IPPORT_RESERVED =1024;
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| 30 | IPPORT_USERRESERVED =5000;
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| 31 |
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| 32 | /*
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| 33 | * Link numbers
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| 34 | */
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| 35 | CONST
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| 36 | IMPLINK_IP =155;
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| 37 | IMPLINK_LOWEXPER =156;
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| 38 | IMPLINK_HIGHEXPER =158;
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| 39 |
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| 40 | /*
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| 41 | * Internet address (a structure for historical reasons)
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| 42 | */
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| 43 | TYPE
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| 44 | in_addr=RECORD
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| 45 | s_addr:LONGWORD;
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| 46 | END;
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| 47 |
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| 48 | /*
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| 49 | * Definitions of bits in internet address integers.
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| 50 | * On subnets, the decomposition of addresses to host and net parts
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| 51 | * is done according to subnet mask, not the masks here.
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| 52 | */
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| 53 | CONST
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| 54 | IN_CLASSA_NET =$ff000000;
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| 55 | IN_CLASSA_NSHIFT =24;
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| 56 | IN_CLASSA_HOST =$00ffffff;
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| 57 | IN_CLASSA_MAX =128;
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| 58 |
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| 59 | IN_CLASSB_NET =$ffff0000;
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| 60 | IN_CLASSB_NSHIFT =16;
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| 61 | IN_CLASSB_HOST =$0000ffff;
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| 62 | IN_CLASSB_MAX =65536;
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| 63 |
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| 64 | IN_CLASSC_NET =$ffffff00;
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| 65 | IN_CLASSC_NSHIFT =8;
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| 66 | IN_CLASSC_HOST =$000000ff;
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| 67 |
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| 68 | INADDR_ANY =$00000000;
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| 69 | INADDR_BROADCAST =$ffffffff; /* must be masked */
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| 70 | INADDR_NONE =$ffffffff; /* -1 return */
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| 71 |
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| 72 | IN_LOOPBACKNET =127; /* official! */
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| 73 |
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| 74 | /*
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| 75 | * Socket address, internet style.
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| 76 | */
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| 77 | TYPE
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| 78 | sockaddr_in=RECORD
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| 79 | sin_family:INTEGER;
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| 80 | sin_port:WORD;
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| 81 | sin_addr:in_addr;
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| 82 | sin_zero:CSTRING[7];
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| 83 | END;
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| 84 |
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| 85 | /*
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| 86 | * Options for use with [gs]etsockopt at the IP level.
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| 87 | */
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| 88 | CONST
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| 89 | IP_OPTIONS =1; /* set/get IP per-packet options */
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| 90 |
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| 91 | IMPORTS
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| 92 | FUNCTION inet_addr(CONST c:CSTRING):LONGWORD;
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| 93 | APIENTRY; 'TCP32DLL' index 5;
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| 94 | FUNCTION inet_makeaddr(p1,p2:LONGWORD):LONGWORD; {in_addr}
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| 95 | APIENTRY; 'TCP32DLL' index 8;
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| 96 | FUNCTION inet_network(VAR c:CSTRING):LONGWORD;
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| 97 | APIENTRY; 'TCP32DLL' index 9;
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| 98 | FUNCTION inet_ntoa(ia:LONGWORD{in_addr}):LONGWORD;
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| 99 | APIENTRY; 'TCP32DLL' index 10;
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| 100 | FUNCTION inet_lnaof(ia:LONGWORD{in_addr}):LONGWORD;
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| 101 | APIENTRY; 'TCP32DLL' index 6;
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| 102 | FUNCTION inet_netof(ia:LONGWORD{in_addr}):LONGWORD;
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| 103 | APIENTRY; 'TCP32DLL' index 7;
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| 104 | END;
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| 105 |
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| 106 | FUNCTION IN_CLASSA(i:LONGINT):BOOLEAN;
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| 107 | FUNCTION IN_CLASSB(i:LONGINT):BOOLEAN;
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| 108 | FUNCTION IN_CLASSC(i:LONGINT):BOOLEAN;
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| 109 | FUNCTION IN_CLASSD(i:LONGINT):BOOLEAN;
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| 110 | FUNCTION IN_MULTICAST(i:LONGINT):BOOLEAN;
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| 111 | FUNCTION IN_EXPERIMENTAL(i:LONGINT):BOOLEAN;
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| 112 | FUNCTION IN_BADCLASS(i:LONGINT):BOOLEAN;
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| 113 |
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| 114 | IMPLEMENTATION
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| 115 |
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| 116 | FUNCTION IN_CLASSA(i:LONGINT):BOOLEAN;
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| 117 | BEGIN
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| 118 | result:=(((i) AND $80000000) = 0);
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| 119 | END;
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| 120 |
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| 121 | FUNCTION IN_CLASSB(i:LONGINT):BOOLEAN;
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| 122 | BEGIN
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| 123 | result:=(((i) AND $c0000000) = $80000000);
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| 124 | END;
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| 125 |
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| 126 | FUNCTION IN_CLASSC(i:LONGINT):BOOLEAN;
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| 127 | BEGIN
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| 128 | result:=(((i) AND $e0000000) = $c0000000);
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| 129 | END;
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| 130 |
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| 131 | FUNCTION IN_CLASSD(i:LONGINT):BOOLEAN;
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| 132 | BEGIN
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| 133 | result:=(((i) AND $f0000000) = $e0000000);
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| 134 | END;
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| 135 |
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| 136 | FUNCTION IN_MULTICAST(i:LONGINT):BOOLEAN;
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| 137 | BEGIN
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| 138 | result:=IN_CLASSD(i);
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| 139 | END;
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| 140 |
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| 141 | FUNCTION IN_EXPERIMENTAL(i:LONGINT):BOOLEAN;
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| 142 | BEGIN
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| 143 | result:=(((i) AND $e0000000) = $e0000000);
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| 144 | END;
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| 145 |
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| 146 | FUNCTION IN_BADCLASS(i:LONGINT):BOOLEAN;
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| 147 | BEGIN
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| 148 | result:=(((i) AND $f0000000) = $f0000000);
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| 149 | END;
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| 150 |
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| 151 |
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| 152 | BEGIN
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| 153 | END.
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