1 /* bzflag
2  * Copyright (c) 1993-2021 Tim Riker
3  *
4  * This package is free software;  you can redistribute it and/or
5  * modify it under the terms of the license found in the file
6  * named COPYING that should have accompanied this file.
7  *
8  * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
9  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
10  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
11  */
12 
13 /* Address:
14  *  Encapsulates an Internet address
15  *
16  * PlayerId:
17  *  Unique network id for a player.  Can be sent
18  *  across the net.
19  */
20 
21 #ifndef BZF_INET_ADDR_H
22 #define BZF_INET_ADDR_H
23 
24 // system headers
25 #include <sys/types.h>
26 #include <vector>
27 #include <string>
28 
29 // local headers
30 #include "common.h"
31 #include "global.h"
32 #include "network.h"
33 #include "Pack.h"
34 
35 typedef struct in_addr  InAddr;         // shorthand
36 
37 class Address
38 {
39 public:
40     Address();
41     Address(const std::string&);
42     Address(const Address&);
43     Address(const InAddr&);         // input in nbo
44     Address(const struct sockaddr_in&); // input in nbo
45     ~Address();
46     Address&        operator=(const Address&);
47 
48     operator InAddr() const;
49     bool        operator==(const Address&) const;
50     bool        operator!=(const Address&) const;
51     bool        operator<(Address const&) const;
52     bool        isAny() const;
53     bool        isPrivate() const;
54     std::string     getDotNotation() const;
55     uint8_t     getIPVersion() const;
56 
57     void*       pack(void*) const;
58     const void*     unpack(const void*);
59 
60     static Address  getHostAddress(const std::string &hostname = std::string(""));
61     static std::string  getHostByAddress(InAddr);
62     static const std::string getHostName(const std::string &hostname = std::string(""));
63 
64 private:
65     std::vector <InAddr> addr;
66 };
67 
68 typedef uint8_t     PlayerId;
69 const int       PlayerIdPLen = sizeof(PlayerId);
70 const int       ServerIdPLen = 8;
71 
72 // FIXME - enum maybe? put into namespace or class cage?
73 const PlayerId      NoPlayer = 255;
74 const PlayerId      AllPlayers = 254;
75 const PlayerId      ServerPlayer = 253;
76 const PlayerId      AdminPlayers = 252;
77 const PlayerId      FirstTeam = 251;
78 const PlayerId      LastRealPlayer = FirstTeam - NumTeams;
79 
80 class ServerId
81 {
82 public:
83     void*       pack(void*) const;
84     const void*     unpack(const void*);
85 
86     bool        operator==(const ServerId&) const;
87     bool        operator!=(const ServerId&) const;
88 
89 public:
90     // host and port in network byte order
91     InAddr      serverHost;     // server host
92     int16_t     port;           // server port
93     int16_t     number;         // local player number
94 };
95 
96 #endif // BZF_INET_ADDR_H
97 
98 // Local Variables: ***
99 // mode: C++ ***
100 // tab-width: 4 ***
101 // c-basic-offset: 4 ***
102 // indent-tabs-mode: nil ***
103 // End: ***
104 // ex: shiftwidth=4 tabstop=4
105