linux网络编程

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网络编程
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1.进程间通讯 2.套接字 3.tcpip 4网络安全
󰄄  ..................................................................................................................1
1.1 .......................................................................................................1
1.2 OSI ...........................................................................................................3
1.3 Internet ..............................................................................................4
1.4 /...............................................................................................5
1.4 UNIX  ...................................................................................................7
1.4.1 Unix  .................................................................................7
1.4.2 UNIX ..........................................................................................8
1.4.3 1979 – UNIX  .............................................................................10
1.4.4 UNIX ?............................................................................. 11
1.5 Linux 󰃻.................................................................................................. 11
1.5.1 Linux 󰃻..................................................................................12
1.5.2  GNU ......................................................................................12
1.5.3 Linux  ........................................................................................13
1.5.4 󰀸...............................................................................................14
1.5.5 Linux 󰁉 .................................................................................14
1.5.6 󰃕 Linux ............................................................................15
1.6 Linux Unix 󰃻....................................................................................15
󰄄 UNIX/Linux ...............................................................................................17
2.1 UNIX/Linux .......................................................................................17
2.2 ......................................................................................................19
2.2.1 UNIX/Linux ......................................................................19
2.2.2 󰆺 I/O ......................................................................................20
2.3 ................................................................................................................21
󰄄 󰅦 ..........................................................................................................22
3.1 󰁱󰂯...........................................................................................22
3.1.1 ............................................................................................22
3.1.2 ............................................................................................22
3.1.3 󰂯............................................................................................24
3.1.4 .......................................................................29
3.2 󰅦󰇵...............................................................................................31
3.2.1 󰅵󰅙............................................................................................31
3.2.2 ............................................................................................32
3.2.3 󰅵󰅙..............................................................................33
3.2.4 󰅦.....................................................................................33
3.3 ......................................................................................................38
3.3.1 ............................................................................................38
3.3.2 󰇧.....................................................................................39
3.3.3 ................................................................................................40
3.3.4 .....................................................................................42
3.3.5 󰁖..................................................................................43
3.3.6 󰇈󰂘............................................................................................44
3.3.7 󰁋.........................................................................................45
3.4 .........................................................................................................46
3.4.1 .......................................................................................................46
3.4.2 ............................................................................................46
3.4.3 ..............................................................................46
3.4.4 .....................................................................................48
3.5 󰄄.........................................................................................................49
󰄄 .......................................................................................................50
4.1 .............................................................................50
4.2 信号................................................................................................................50
4.2.1 ............................................................................................52
4.2.2 󰁱󰁉...........................................................................54
4.2.3 ............................................................................................55
4.2.4 󰂾..................................................................................56
4.2.5 󰁉 alarm() pause()......................................................................58
4.2.6 󰁉 setjmp() longjmp().................................................................62
4.3 ................................................................................................................63
4.3.1 󰁉 C 󰁉..........................................................................65
4.3.2 󰆠󰀊.....................................................................................72
4.4 󰁖.........................................................................................................72
4.4.1 󰁖.....................................................................................72
4.4.2 󰁖 I/O 󰁉...............................................................................73
4.4.3 󰁠󰁖󰆠󰀊.........................................................75
4.5 ...............................................................................................75
4.5.1 ..................................................................................75
4.5.2 󰅰..................................................................................78
4.5.3 System V󰇇..............................................................................78
4.5.4 BSD 󰇇.................................................................................79
4.5.5 󰅶.......................................................................81
4.5.6 Linux ............................................................................81
4.6 System V IPC...................................................................................................84
4.6.1 ipcs ................................................................................................85
4.6.2 ipcrm ..............................................................................................86
4.7 Message Queues...........................................................................86
4.7.1 󰁖.....................................................................................86
4.7.2 󰁖............................................................................................89
4.7.3 msgtool󰁉..................94
4.8 (Semaphores) .........................................................................................97
4.8.1 󰁖.....................................................................................98
4.8.2 󰁖............................................................................................99
4.8.3 semtool󰁉...........................103
4.9 (Shared Memory)..............................................................................109
4.9.1 󰁖...................................................................................109
4.9.2 󰁖..........................................................................................110
4.9.3 󰀬󰁉shmtool,󰁉...................112
4.9.4 󰁱󰁉..............................................................114
󰄄 󰀑 .................................................................................................120
5.1 󰀥..............................................................................................................120
5.2 XNSXerox Network Systems..............................................................120
5.2.1 XNS ......................................................................................120
5.3 IPX/SPX 󰀑........................................................................................122
5.3.1 IPX .............................................................................122
5.3.2 SPX.............................................................................124
5.4 Net BIOS ................................................................................................124
5.5 Apple Talk  ..............................................................................................125
5.6 TCP/IP ...................................................................................................126
5.6.1 TCP/IP  ..................................................................................126
5.6.2 Internet 󰀑IP...............................................................................127
5.6.3 󰅦󰀑TCP.........................................................................132
5.6.4 󰁉󰀑................................................................................134
5.7 ..............................................................................................................135
󰄄 Berkeley 󰇔 ............................................................................................. 136
6.1 󰀥............................................................................................................. 136
6.2 ............................................................................................................. 136
6.2.1 Socket ...................................................................................... 136
6.2.2 Socket ...................................................................................... 136
6.2.3 󰇔󰅶............................................................................... 138
6.3 Linux 󰅇󰀑................................................................................... 141
6.3.1  TCP/IP?................................................................................... 141
6.4 󰇔󰅗................................................................................................... 142
6.4.1  Socket.................................................................................. 142
6.4.2 Socket ...................................................................................... 142
6.4.3 󰇔󰃙󰂾............................................ 143
6.5 󰇔󰅊................................................................................. 144
6.5.1 ............................................................................................. 144
6.5.2 󰆨...................................................................................... 145
6.6 󰇔󰁉............................................................................................ 147
6.6.1 socket() ....................................................................................... 147
6.6.2 bind()  ......................................................................................... 148
6.6.3 connect() ...................................................................................... 150
6.6.4 listen() ........................................................................................ 151
6.6.5 accept() ........................................................................................ 152
6.6.6 send()recv()............................................................................... 154
6.6.7 sendto() recvfrom() ................................................................. 155
6.6.8 close() shutdown()...................................................................... 156
6.6.9 setsockopt() getsockopt() ......................................................... 157
6.6.10 getpeername().............................................................................. 157
6.6.11 gethostname().............................................................................. 158
6.7 DNS 󰇵.................................................................................................. 158
6.7.1  DNS............................................................................................ 158
6.7.2 DNS 󰁖 .................................................................. 158
6.7.3 DNS ............................................................................................ 159
6.8 󰇔 Client/Server 󰇑.......................................................... 160
6.8.1 .................................................................................. 161
6.8.2 󰇔............................................................. 163
6.8.3 󰇔DatagramSockets............................................... 165
6.9 ...................................................................................................... 169
6.9.1 .................................................................................................... 169
6.9.2 ............................................................................................. 170
6.10 󰅶 I/O ................................................................................................. 179
6.10.1 󰇦 I/O  .................................................................................... 179
6.10.2 󰇦 I/O.................................................................................. 180
6.10.3 I/O 󰁉 ..................................................................................... 181
6.10.4  I/O  ............................................................................. 182
6.10.5 󰀔 I/O  .................................................................................... 185
6.10.6 󰅶 I/O .......................................................................... 186
6.10.7 fcntl()......................................................................................... 186
6.10.8 󰇔󰃕 select().................................................................. 187
6.11 ..................................................................................................... 190
6.11.1 TCP  ................................................................................ 190
6.11.2 OOB 󰇔 Server.c ................................... 193
6.11.3 OOB 󰇔 Client.c.................................... 196
6.11.4 󰀓󰇑........................................................................................... 199
6.12 󰁉 InetdInternet ............................................................... 199
6.12.1 .................................................................................................. 199
6.12.2  inetd 󰁉 hello inet service.......................... 199
6.12.3 /etc/services /etc/inetd.conf  ..................................................... 200
6.12.4 󰂷 inetd ...................................................... 201
6.12.5 󰂷 inetd ...................................................... 203
6.12.6 󰇯󰆺󰃖............................................................... 205
6.12.7 .................................................................................................. 205
6.13 󰄄󰇚 .................................................................................................... 205
󰄄 .....................................................................................................206
7.1 ................................................................................................206
7.1.1 󰅸................................................................................206
7.1.2 .........................................................................207
7.2 Linux 󰀚................................................................................209
7.3 Linux 󰂕...........................................................................................211
7.3.1 系统子程序..........................................................................................212
7.3.2 标准 Ｃ 函数库.......................................................................................214
7.3.3 书写安全的 Ｃ 程序................................................................................216
7.3.4 ＳＵＩＤ／ＳＧＩＤ 程序指导准则......................................................................217
7.3.5 root 程序的设计....................................................................................218
7.4 ..............................................................................................................219
󰄄 Ping .......................................................................................................220
8.1 Ping ................................................................................................220
8.2 Ping 󰂑.............................................................................................220
8.3 ..............................................................................................................221
󰄄 tftp .........................................................................................................222
9.1 tftp 协议简介..................................................................................................222
9.2 tftp 󰁉.....................................................................................................222
9.3 tftp 󰂑.....................................................................................................223
9.3 tftp ..............................................................................................223
9.4 ..............................................................................................................225
󰄄 󰂚󰅔 .................................................................................................226
10.1 󰀥 ............................................................................................................226
10.2 rcmd  rshd ...............................................................................227
10.3 rexec  rexecd ...........................................................................233
󰄄 󰂚󰆠.....................................................................................................235
11.1 .............................................................................................................235
11.2 󰅵󰅵........................................................................................235
11.3 󰅵󰇔󰅦󰅵.................................................................................239
11.4 rlogin ....................................................................................................242
11.5 ......................................................................................................242
11.6 󰅦󰁱󰅵󰇔.................................................................................243
11.7 rlogin .............................................................................................245
11.8 rlogin ................................................................................................246
󰄄 󰂚󰁉..............................................................................................249
12.1 󰀥 ............................................................................................................249
12.2 󰂚󰁉 .......................................................................................249
12.3 󰁉󰂚󰁉 ...........................................................250
12.4 󰂚󰁉󰀍....................................................................................252
12.5 󰂚󰁉󰁖.............................................................................252
12.5.1 󰂚󰁉󰀑.......................................................................253
12.5.2 Sun RPC...........................................................................................254
12.5.3 Xerox Courier....................................................................................254
12.5.4 Apollo RPC........................................................................................255
12.6 stub ...............................................................................................256
12.7 rpcgen ..................................................................................................256
12.8 󰇑 ................................................................................257
12.8.1 󰃐󰀬󰁉...........................................257
12.9  ............................................................................................................283
󰄄 󰂚 ..........................................................................................284
13.1  ............................................................................................................284
13.2 Linux  ..............................................................................285
13.3 rmt 󰀑.......................................................................................................285
13.4 rmt  .....................................................................................286
󰄄 WWW HTTP 󰀑.................................................................................. 290

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