forked from winddriver/Delphi-Cross-Socket
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Net.SocketAPI.pas
1103 lines (980 loc) · 31.8 KB
/
Net.SocketAPI.pas
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
{******************************************************************************}
{ }
{ Delphi cross platform socket library }
{ }
{ Copyright (c) 2017 WiNDDRiVER([email protected]) }
{ }
{ Homepage: https://github.com/winddriver/Delphi-Cross-Socket }
{ }
{******************************************************************************}
unit Net.SocketAPI;
{$I zLib.inc}
interface
uses
SysUtils
{$IFDEF MSWINDOWS}
,Windows
,Net.Winsock2
,Net.Wship6
{$ENDIF MSWINDOWS}
{$IFDEF DELPHI}
{$IFDEF POSIX}
,Posix.Base
,Posix.UniStd
,Posix.SysSocket
,Posix.ArpaInet
,Posix.NetinetIn
,Posix.NetDB
,Posix.NetinetTCP
,Posix.Fcntl
,Posix.SysSelect
,Posix.StrOpts
,Posix.SysTime
,Posix.Errno
{$IFDEF LINUX}
,Linuxapi.KernelIoctl
{$ENDIF LINUX}
{$ENDIF POSIX}
{$ELSE}
,DTF.RTL
{$IFDEF POSIX}
,BaseUnix
,Unix
,Sockets
,netdb
,termio
{$IFDEF LINUX}
,Linux
{$ENDIF LINUX}
{$ENDIF POSIX}
{$ENDIF DELPHI}
;
type
TSocket = {$IFDEF MSWINDOWS}Net.Winsock2.TSocket{$ELSE}Integer{$ENDIF};
const
SOCKET_ERROR = -1;
INVALID_SOCKET = TSocket(-1);
{$IF DEFINED(FPC) AND NOT DEFINED(MSWINDOWS)}
NI_MAXHOST = 1025;
NI_MAXSERV = 32;
{$IF DEFINED(FREEBSD)}
NI_NOFQDN = $00000001;
NI_NUMERICHOST = $00000002;
NI_NAMEREQD = $00000004;
NI_NUMERICSERV = $00000008;
NI_DGRAM = $00000010;
NI_NUMERICSCOPE = $00000020;
{$ELSE}
NI_NUMERICHOST = 1;
NI_NUMERICSERV = 2;
NI_NOFQDN = 4;
NI_NAMEREQD = 8;
NI_DGRAM = 16;
{$ENDIF}
{$IF DEFINED(BSD) OR DEFINED(FREEBSD) OR DEFINED(DRAGONFLY)}
O_SHLOCK = $10; { Open with shared file lock }
O_EXLOCK = $20; { Open with exclusive file lock }
O_ASYNC = $40; { Signal pgrp when data ready }
O_FSYNC = $80; { Synchronous writes }
O_SYNC = $80; { POSIX synonym for O_FSYNC }
O_NOFOLLOW = $100; { Don't follow symlinks }
O_DIRECT =$10000; { Attempt to bypass buffer cache }
{$ENDIF}
{$IF DEFINED(LINUX) OR DEFINED(ANDROID)}
{$IF DEFINED(CPUSPARC) OR DEFINED(CPUSPARC64)}
O_APPEND = 8;
O_CREAT = $200;
O_TRUNC = $400;
O_EXCL = $800;
O_SYNC = $2000;
O_NONBLOCK = $4000;
O_NDELAY = O_NONBLOCK OR 4;
O_NOCTTY = $8000;
O_DIRECTORY = $10000;
O_NOFOLLOW = $20000;
O_DIRECT = $100000;
{$ELSE : NOT (CPUSPARC OR CPUSPARC64)}
{$IFDEF CPUMIPS}
O_CREAT = $100;
O_EXCL = $400;
O_NOCTTY = $800;
O_TRUNC = $200;
O_APPEND = $8;
O_NONBLOCK = $80;
O_NDELAY = O_NONBLOCK;
O_SYNC = $10;
O_DIRECT = $8000;
O_DIRECTORY = $10000;
O_NOFOLLOW = $20000;
{$ELSE : NOT CPUMIPS}
O_CREAT = $40;
O_EXCL = $80;
O_NOCTTY = $100;
O_TRUNC = $200;
O_APPEND = $400;
O_NONBLOCK = $800;
O_NDELAY = O_NONBLOCK;
O_SYNC = $1000;
O_DIRECT = $4000;
O_DIRECTORY = $10000;
O_NOFOLLOW = $20000;
{$ENDIF NOT CPUMIPS}
{$ENDIF NOT (CPUSPARC OR CPUSPARC64)}
{$ENDIF LINUX}
{$ENDIF}
{$IFDEF LINUX}
SO_REUSEPORT = 15;
{$ENDIF}
type
{$IF DEFINED(FPC) AND NOT DEFINED(MSWINDOWS)}
{$IF DEFINED(LINUX) OR DEFINED(OPENBSD) OR DEFINED(DARWIN)}
{$DEFINE FIRST_ADDR_THEN_CANONNAME}
{$ENDIF}
{$IF DEFINED(FREEBSD) OR DEFINED(NETBSD) OR DEFINED(DRAGONFLY) OR DEFINED(SOLARIS) OR DEFINED(ANDROID)}
{$DEFINE FIRST_CANONNAME_THEN_ADDR}
{$ENDIF}
{$IF NOT DEFINED(FIRST_CANONNAME_THEN_ADDR) AND NOT DEFINED(FIRST_ADDR_THEN_CANONNAME)}
{$ERROR FATAL 'PLEASE CONSULT THE NETDB.H FILE FOR YOUR SYSTEM TO DETERMINE THE ORDER OF AI_ADDR AND AI_CANONNAME'}
{$ENDIF}
PAddrInfo = ^addrinfo;
addrinfo = record
ai_flags: cInt; {* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST *}
ai_family: cInt; {* PF_xxx *}
ai_socktype: cInt; {* SOCK_xxx *}
ai_protocol: cInt; {* 0 or IPPROTO_xxx for IPv4 and IPv6 *}
ai_addrlen: TSocklen; {* length of ai_addr *}
{$ifdef FIRST_CANONNAME_THEN_ADDR}
ai_canonname: PAnsiChar; {* canonical name for hostname *}
ai_addr: psockaddr; {* binary address *}
{$endif}
{$ifdef FIRST_ADDR_THEN_CANONNAME}
ai_addr: psockaddr; {* binary address *}
ai_canonname: PAnsiChar; {* canonical name for hostname *}
{$endif}
ai_next: PAddrInfo; {* next structure in linked list *}
end;
TAddrInfo = addrinfo;
PPAddrInfo = ^PAddrInfo;
{$ENDIF}
TRawSockAddrIn = packed record
AddrLen: Integer;
case Integer of
0: (Addr: sockaddr_in);
1: (Addr6: sockaddr_in6);
end;
{$IFDEF POSIX}
TRawAddrInfo = addrinfo;
{$ELSE}
TRawAddrInfo = Net.Winsock2.{$IFDEF UNICODE}TAddrInfoW{$ELSE}TAddrInfo{$ENDIF};
{$ENDIF}
PRawAddrInfo = ^TRawAddrInfo;
/// <summary>
/// 套接字基础接口封装
/// </summary>
TSocketAPI = class
public
/// <summary>
/// 新建套接字
/// </summary>
class function NewSocket(const ADomain, AType, AProtocol: Integer): TSocket; static;
/// <summary>
/// 新建 Tcp 套接字
/// </summary>
class function NewTcp: TSocket; static;
/// <summary>
/// 新建 Udp 套接字
/// </summary>
class function NewUdp: TSocket; static;
/// <summary>
/// 关闭套接字
/// </summary>
class function CloseSocket(const ASocket: TSocket): Integer; static;
/// <summary>
/// 停止套接字(SD_RECEIVE=0, SD_SEND=1, SD_BOTH=2)
/// </summary>
class function Shutdown(const ASocket: TSocket; const AHow: Integer = 2): Integer; static;
/// <summary>
/// 接受一个连接请求, 并分配 Socket
/// </summary>
class function Accept(const ASocket: TSocket; const Addr: PSockAddr; const AddrLen: PInteger): TSocket; static;
/// <summary>
/// 绑定套接字到指定地址和端口, 支持 IPv6
/// </summary>
class function Bind(const ASocket: TSocket; const Addr: PSockAddr; const AddrLen: Integer): Integer; static;
/// <summary>
/// 连接到主机, 支持 IPv6
/// </summary>
class function Connect(const ASocket: TSocket; const Addr: PSockAddr; const AddrLen: Integer): Integer; static;
/// <summary>
/// 启动监听
/// </summary>
class function Listen(const ASocket: TSocket; const backlog: Integer = SOMAXCONN): Integer; overload; static;
/// <summary>
/// 接收数据
/// </summary>
class function Recv(const ASocket: TSocket; var Buf; const len: Integer; const flags: Integer = 0): Integer; static;
/// <summary>
/// 发送数据
/// </summary>
class function Send(const ASocket: TSocket; const Buf; const len: Integer; const flags: Integer = 0): Integer; static;
/// <summary>
/// 接收数据从指定地址端口(用于UDP)
/// </summary>
class function RecvFrom(const ASocket: TSocket; const Addr: PSockAddr;
var AddrLen: Integer; var Buf; const len: Integer; const flags: Integer = 0): Integer; static;
/// <summary>
/// 发送数据到指定地址端口(用于UDP)
/// </summary>
class function SendTo(const ASocket: TSocket; const Addr: PSockAddr;
const AddrLen: Integer; const Buf; const len: Integer; const flags: Integer = 0): Integer; static;
/// <summary>
/// 返回与套接字关联的远程协议地址
/// </summary>
class function GetPeerName(const ASocket: TSocket; const Addr: PSockAddr;
var AddrLen: Integer): Integer; static;
/// <summary>
/// 返回与套接字关联的本地协议地址
/// </summary>
class function GetSockName(const ASocket: TSocket; const Addr: PSockAddr;
var AddrLen: Integer): Integer; static;
/// <summary>
/// 获取套接字参数
/// </summary>
class function GetSockOpt(const ASocket: TSocket; const ALevel, AOptionName: Integer;
var AOptionValue; var AOptionLen: Integer): Integer; overload; static;
/// <summary>
/// 获取套接字参数
/// </summary>
class function GetSockOpt<T>(const ASocket: TSocket; const ALevel, AOptionName: Integer;
var AOptionValue: T): Integer; overload; static;
/// <summary>
/// 设置套接字参数
/// </summary>
class function SetSockOpt(const ASocket: TSocket; const ALevel, AOptionName: Integer;
const AOptionValue: Pointer; AOptionLen: Integer): Integer; overload; static;
/// <summary>
/// 设置套接字参数
/// </summary>
class function SetSockOpt(const ASocket: TSocket; const ALevel, AOptionName: Integer;
const AOptionValue; AOptionLen: Integer): Integer; overload; static;
/// <summary>
/// 设置套接字参数
/// </summary>
class function SetSockOpt<T>(const ASocket: TSocket; const ALevel, AOptionName: Integer;
const AOptionValue: T): Integer; overload; static;
/// <summary>
/// 检查套接字错误码
/// </summary>
class function GetError(const ASocket: TSocket): Integer; static;
/// <summary>
/// 设置非阻塞模式
/// </summary>
class function SetNonBlock(const ASocket: TSocket; const ANonBlock: Boolean = True): Integer; static;
/// <summary>
/// 设置地址重用模式
/// </summary>
class function SetReUseAddr(const ASocket: TSocket; const AReUseAddr: Boolean = True): Integer; static;
/// <summary>
/// 设置端口重用模式(POSIX)
/// </summary>
class function SetReUsePort(const ASocket: TSocket; const AReUsePort: Boolean = True): Integer; static;
/// <summary>
/// 设置心跳参数
/// </summary>
class function SetKeepAlive(const ASocket: TSocket; const AIdleSeconds, AInterval, ACount: Integer): Integer; static;
/// <summary>
/// 开启TCP_NODELAY
/// </summary>
class function SetTcpNoDelay(const ASocket: TSocket; const ANoDelay: Boolean = True): Integer; static;
/// <summary>
/// 设置发送缓冲区大小
/// </summary>
class function SetSndBuf(const ASocket: TSocket; const ABufSize: Integer): Integer; static;
/// <summary>
/// 设置接收缓冲区大小
/// </summary>
class function SetRcvBuf(const ASocket: TSocket; const ABufSize: Integer): Integer; static;
/// <summary>
/// 设置Linger参数(在closesocket()调用, 但是还有数据没发送完毕时容许逗留的秒数)
/// </summary>
class function SetLinger(const ASocket: TSocket; const AOnOff: Boolean; const ALinger: Integer): Integer; static;
/// <summary>
/// 设置广播SO_BROADCAST
/// </summary>
class function SetBroadcast(const ASocket: TSocket; const ABroadcast: Boolean = True): Integer; static;
/// <summary>
/// 设置接收超时(单位为ms)
/// </summary>
class function SetRecvTimeout(const ASocket: TSocket; const ATimeout: Cardinal): Integer; static;
/// <summary>
/// 设置发送超时(单位为ms)
/// </summary>
class function SetSendTimeout(const ASocket: TSocket; const ATimeout: Cardinal): Integer; static;
/// <summary>
/// 查看接收队列
/// ATimeout < 0 阻塞
/// ATimeout = 0 非阻塞立即返回
/// ATimeout > 0 等待超时时间
/// </summary>
class function Readable(const ASocket: TSocket; const ATimeout: Integer): Integer; static;
/// <summary>
/// 查看发送队列
/// ATimeout < 0 阻塞
/// ATimeout = 0 非阻塞立即返回
/// ATimeout > 0 等待超时时间
/// </summary>
class function Writeable(const ASocket: TSocket; const ATimeout: Integer): Integer; static;
/// <summary>
/// 缓存中已接收的字节数
/// </summary>
class function RecvdCount(const ASocket: TSocket): Integer; static;
/// <summary>
/// 解析地址信息, 支持 IPv6
/// </summary>
class function GetAddrInfo(const AHostName, AServiceName: string;
const AHints: TRawAddrInfo): PRawAddrInfo; overload; static;
/// <summary>
/// 解析地址信息, 支持 IPv6
/// </summary>
class function GetAddrInfo(const AHostName: string; const APort: Word;
const AHints: TRawAddrInfo): PRawAddrInfo; overload; static;
/// <summary>
/// 释放 GetAddrInfo 返回的数据
/// </summary>
class procedure FreeAddrInfo(const ARawAddrInfo: PRawAddrInfo); static;
/// <summary>
/// 从 SockAddr 结构中解析出 IP 和 端口, 支持 IPv6
/// </summary>
class procedure ExtractAddrInfo(const AAddr: PSockAddr; const AAddrLen: Integer;
var AIP: string; var APort: Word); static;
/// <summary>
/// 将域名解析为 IP 地址, 支持 IPv6
/// </summary>
class function GetIpAddrByHost(const AHost: string): string; static;
/// <summary>
/// 套接字是否有效
/// </summary>
class function IsValidSocket(const ASocket: TSocket): Boolean; static;
/// <summary>
/// 标准化主机地址(主要是为IPv6补足[])
/// </summary>
class function StandardAddr(const AHost: string): string; static;
end;
implementation
{$IF DEFINED(FPC) AND NOT DEFINED(MSWINDOWS)}
{$LINKLIB c}
function getaddrinfo(hostname, servname: MarshaledAString;
hints: PAddrInfo; res: PPAddrInfo): Integer; cdecl; external;
procedure freeaddrinfo(ai: PRawAddrInfo); cdecl; external;
function getnameinfo(sa: PSockAddr; salen: TSockLen; host: PAnsiChar; hostlen: TSize;
serv: PAnsiChar; servlen: TSize; flags: cInt): cInt; cdecl; external;
{$ENDIF}
{ TSocketAPI }
class function TSocketAPI.NewSocket(const ADomain, AType,
AProtocol: Integer): TSocket;
begin
{$IFDEF DELPHI}
Result :=
{$IFDEF MSWINDOWS}
Net.Winsock2.
{$ELSE}
Posix.SysSocket.
{$ENDIF MSWINDOWS}
socket(ADomain, AType, AProtocol);
{$ELSE DELPHI}
Result :=
{$IFDEF MSWINDOWS}
Net.Winsock2.socket
{$ELSE}
Sockets.fpSocket
{$ENDIF MSWINDOWS}
(ADomain, AType, AProtocol);
{$ENDIF DELPHI}
{$IFDEF DEBUG}
if not IsValidSocket(Result) then
RaiseLastOSError;
{$ENDIF}
end;
class function TSocketAPI.NewTcp: TSocket;
begin
Result := TSocketAPI.NewSocket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
end;
class function TSocketAPI.NewUdp: TSocket;
begin
Result := TSocketAPI.NewSocket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
end;
class function TSocketAPI.Readable(const ASocket: TSocket; const ATimeout: Integer): Integer;
var
{$IFDEF MSWINDOWS}
LFDSet: TFDSet;
LTime_val: TTimeval;
{$ELSE}
LFDSet: {$IFDEF DELPHI}fd_set{$ELSE}TFDSet{$ENDIF};
LTime_val: timeval;
{$ENDIF}
P: PTimeVal;
begin
if (ATimeout >= 0) then
begin
LTime_val.tv_sec := ATimeout div 1000;
LTime_val.tv_usec := 1000 * (ATimeout mod 1000);
P := @LTime_val;
end else
P := nil;
{$IFDEF MSWINDOWS}
FD_ZERO(LFDSet);
FD_SET(ASocket, LFDSet);
Result := Net.Winsock2.select(0, @LFDSet, nil, nil, P);
{$ELSE MSWINDOWS}
{$IFDEF DELPHI}
FD_ZERO(LFDSet);
_FD_SET(ASocket, LFDSet);
Result := Posix.SysSelect.select(0, @LFDSet, nil, nil, P);
{$ELSE DELPHI}
fpFD_ZERO(LFDSet);
fpFD_SET(ASocket, LFDSet);
Result := fpSelect(0, @LFDSet, nil, nil, P);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.Recv(const ASocket: TSocket; var Buf; const len,
flags: Integer): Integer;
begin
Result :=
{$IFDEF DELPHI}
{$IFDEF MSWINDOWS}
Net.Winsock2.
{$ELSE}
Posix.SysSocket.
{$ENDIF}
recv(ASocket, Buf, len, flags);
{$ELSE DELPHI}
{$IFDEF MSWINDOWS}
Net.Winsock2.recv(ASocket, Buf, len, flags);
{$ELSE}
fprecv(ASocket, @Buf, len, flags);
{$ENDIF}
{$ENDIF DELPHI}
end;
class function TSocketAPI.RecvdCount(const ASocket: TSocket): Integer;
{$IF DEFINED(MSWINDOWS) OR DEFINED(FPC)}
var
LTemp : Cardinal;
{$ENDIF}
begin
{$IFDEF MSWINDOWS}
if ioctlsocket(ASocket, FIONREAD, LTemp) = SOCKET_ERROR then
Result := -1
else
Result := LTemp;
{$ELSE}
{$IFDEF DELPHI}
Result := ioctl(ASocket, FIONREAD);
{$ELSE}
if fpioctl(ASocket, FIONREAD, @LTemp) = SOCKET_ERROR then
Result := -1
else
Result := LTemp;
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.RecvFrom(const ASocket: TSocket; const Addr: PSockAddr;
var AddrLen: Integer; var Buf; const len, flags: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.recvfrom(ASocket, Buf, len, flags, Addr, @AddrLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.recvfrom(ASocket, Buf, len, flags, Addr^, socklen_t(AddrLen));
{$ELSE}
Result := fprecvfrom(ASocket, @Buf, len, flags, Addr, @AddrLen);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.Accept(const ASocket: TSocket; const Addr: PSockAddr;
const AddrLen: PInteger): TSocket;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.accept(ASocket, Addr, AddrLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.accept(ASocket, Addr^, socklen_t(AddrLen^));
{$ELSE}
Result := fpaccept(ASocket, Addr, psocklen(AddrLen));
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.Bind(const ASocket: TSocket; const Addr: PSockAddr;
const AddrLen: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.bind(ASocket, Addr, AddrLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.bind(ASocket, Addr^, AddrLen);
{$ELSE}
Result := fpbind(ASocket, Addr, AddrLen);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.CloseSocket(const ASocket: TSocket): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.closesocket(ASocket);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.UniStd.__close(ASocket);
{$ELSE}
Result := Sockets.CloseSocket(ASocket);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.Shutdown(const ASocket: TSocket; const AHow: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.shutdown(ASocket, AHow);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.shutdown(ASocket, AHow);
{$ELSE}
Result := fpshutdown(ASocket, AHow);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.StandardAddr(const AHost: string): string;
var
LHost: string;
begin
if (AHost = '') then Exit('');
LHost := AHost.Trim.ToLower;
// IPv6
if LHost.Contains(':') then
begin
if not LHost.StartsWith('[', True) then
LHost := '[' + LHost;
if not LHost.EndsWith(']', True) then
LHost := LHost + ']';
end;
Result := LHost;
end;
class function TSocketAPI.Connect(const ASocket: TSocket; const Addr: PSockAddr;
const AddrLen: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.connect(ASocket, Addr, AddrLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.connect(ASocket, Addr^, AddrLen);
{$ELSE}
Result := fpconnect(ASocket, Addr, AddrLen);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
{$IFDEF DEBUG}
// if (Result <> 0) and (GetLastError <> EINPROGRESS) then
// RaiseLastOSError;
{$ENDIF}
end;
class function TSocketAPI.GetAddrInfo(const AHostName, AServiceName: string;
const AHints: TRawAddrInfo): PRawAddrInfo;
var
M: TMarshaller;
LHost, LService: Pointer;
LRet: Integer;
LAddrInfo: PRawAddrInfo;
begin
Result := nil;
{$IFDEF MSWINDOWS}
if (AHostName <> '') then
LHost := M.OutString(AHostName).ToPointer
else
LHost := nil;
if (AServiceName <> '') then
LService := M.OutString(AServiceName).ToPointer
else
LService := nil;
LRet := Net.Wship6.getaddrinfo(LHost, LService, @AHints, @LAddrInfo);
{$ELSE}
if (AHostName <> '') then
LHost := M.AsAnsi(AHostName).ToPointer
else
LHost := nil;
if (AServiceName <> '') then
LService := M.AsAnsi(AServiceName).ToPointer
else
LService := nil;
{$IFDEF DELPHI}
LRet := Posix.NetDB.getaddrinfo(LHost, LService, AHints, Paddrinfo(LAddrInfo));
{$ELSE}
//LRet := cNetDB.getaddrinfo(LHost, LService, @AHints, @LAddrInfo);
LRet := Net.SocketAPI.getaddrinfo(LHost, LService, @AHints, @LAddrInfo);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
if (LRet <> 0) then Exit;
Result := LAddrInfo;
end;
class function TSocketAPI.GetAddrInfo(const AHostName: string; const APort: Word;
const AHints: TRawAddrInfo): PRawAddrInfo;
begin
Result := GetAddrInfo(AHostName, APort.ToString, AHints);
end;
class function TSocketAPI.GetError(const ASocket: TSocket): Integer;
var
LRet, LErrLen: Integer;
begin
LErrLen := SizeOf(Integer);
LRet := TSocketAPI.GetSockOpt(ASocket, SOL_SOCKET, SO_ERROR, Result, LErrLen);
if (LRet <> 0) then
Result := LRet;
end;
class procedure TSocketAPI.FreeAddrInfo(const ARawAddrInfo: PRawAddrInfo);
begin
{$IFDEF MSWINDOWS}
Net.Wship6.freeaddrinfo(PAddrInfoW(ARawAddrInfo));
{$ELSE}
{$IFDEF DELPHI}
Posix.NetDB.freeaddrinfo(ARawAddrInfo^);
{$ELSE}
//cNetDB.freeaddrinfo(ARawAddrInfo);
Net.SocketAPI.freeaddrinfo(ARawAddrInfo);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class procedure TSocketAPI.ExtractAddrInfo(const AAddr: PSockAddr;
const AAddrLen: Integer; var AIP: string; var APort: Word);
var
M: TMarshaller;
LIP, LServInfo: TPtrWrapper;
begin
LIP := M.AllocMem(NI_MAXHOST);
LServInfo := M.AllocMem(NI_MAXSERV);
{$IFDEF MSWINDOWS}
getnameinfo(AAddr, AAddrLen, LIP.ToPointer, NI_MAXHOST, LServInfo.ToPointer, NI_MAXSERV, NI_NUMERICHOST or NI_NUMERICSERV);
AIP := TMarshal.ReadStringAsUnicode(LIP);
APort := TMarshal.ReadStringAsUnicode(LServInfo).ToInteger;
{$ELSE}
{$IFDEF DELPHI}
getnameinfo(AAddr^, AAddrLen, LIP.ToPointer, NI_MAXHOST, LServInfo.ToPointer, NI_MAXSERV, NI_NUMERICHOST or NI_NUMERICSERV);
{$ELSE}
getnameinfo(AAddr, AAddrLen, LIP.ToPointer, NI_MAXHOST, LServInfo.ToPointer, NI_MAXSERV, NI_NUMERICHOST or NI_NUMERICSERV);
{$ENDIF DELPHI}
AIP := TMarshal.ReadStringAsAnsi(LIP);
APort := TMarshal.ReadStringAsAnsi(LServInfo).ToInteger;
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.GetIpAddrByHost(const AHost: string): string;
var
LHints: TRawAddrInfo;
LAddrInfo: PRawAddrInfo;
LPort: Word;
begin
FillChar(LHints, SizeOf(TRawAddrInfo), 0);
LAddrInfo := GetAddrInfo(AHost, '', LHints);
if (LAddrInfo = nil) then Exit('');
ExtractAddrInfo(LAddrInfo.ai_addr, LAddrInfo.ai_addrlen, Result, LPort);
FreeAddrInfo(LAddrInfo);
end;
class function TSocketAPI.GetPeerName(const ASocket: TSocket; const Addr: PSockAddr;
var AddrLen: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.getpeername(ASocket, Addr, AddrLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.getpeername(ASocket, Addr^, socklen_t(AddrLen));
{$ELSE}
Result := fpgetpeername(ASocket, Addr, @AddrLen);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.GetSockName(const ASocket: TSocket; const Addr: PSockAddr;
var AddrLen: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.getsockname(ASocket, Addr, AddrLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.getsockname(ASocket, Addr^, socklen_t(AddrLen));
{$ELSE}
Result := fpgetsockname(ASocket, Addr, @AddrLen);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.GetSockOpt(const ASocket: TSocket; const ALevel, AOptionName: Integer;
var AOptionValue; var AOptionLen: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.getsockopt(ASocket, ALevel, AOptionName, PAnsiChar(@AOptionValue), AOptionLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.getsockopt(ASocket, ALevel, AOptionName, AOptionValue, socklen_t(AOptionLen));
{$ELSE}
Result := fpgetsockopt(ASocket, ALevel, AOptionName, @AOptionValue, @AOptionLen);
{$ENDIF DELPHI}
{$ENDIF}
end;
class function TSocketAPI.GetSockOpt<T>(const ASocket: TSocket; const ALevel,
AOptionName: Integer; var AOptionValue: T): Integer;
var
LOptionLen: Integer;
begin
Result := GetSockOpt(ASocket, ALevel, AOptionName, AOptionValue, LOptionLen);
end;
class function TSocketAPI.IsValidSocket(const ASocket: TSocket): Boolean;
begin
Result := (ASocket <> INVALID_SOCKET);
end;
class function TSocketAPI.Listen(const ASocket: TSocket; const backlog: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.listen(ASocket, backlog);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.listen(ASocket, backlog);
{$ELSE}
Result := fplisten(ASocket, backlog);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
{$IFDEF DEBUG}
// if (Result <> 0) then
// RaiseLastOSError;
{$ENDIF}
end;
class function TSocketAPI.Send(const ASocket: TSocket; const Buf; const len,
flags: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.send(ASocket, Buf, len, flags);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.send(ASocket, Buf, len, flags);
{$ELSE}
Result := fpsend(ASocket, @Buf, len, flags);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.SendTo(const ASocket: TSocket; const Addr: PSockAddr;
const AddrLen: Integer; const Buf; const len, flags: Integer): Integer;
begin
{$IFDEF MSWINDOWS}
Result := Net.Winsock2.sendto(ASocket, Buf, len, flags, Addr, AddrLen);
{$ELSE}
{$IFDEF DELPHI}
Result := Posix.SysSocket.sendto(ASocket, Buf, len, flags, Addr^, AddrLen);
{$ELSE}
Result := fpsendto(ASocket, @Buf, len, flags, Addr, AddrLen);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.SetBroadcast(const ASocket: TSocket;
const ABroadcast: Boolean): Integer;
var
LOptVal: Integer;
begin
if ABroadcast then
LOptVal := 1
else
LOptVal := 0;
Result := TSocketAPI.SetSockOpt(ASocket, SOL_SOCKET, SO_BROADCAST, LOptVal, SizeOf(Integer));
end;
class function TSocketAPI.SetKeepAlive(const ASocket: TSocket; const AIdleSeconds,
AInterval, ACount: Integer): Integer;
var
LOptVal: Integer;
{$IFDEF MSWINDOWS}
LKeepAlive: tcp_keepalive;
LBytes: Cardinal;
{$ENDIF}
begin
LOptVal := 1;
Result := SetSockOpt(ASocket, SOL_SOCKET, SO_KEEPALIVE, LOptVal, SizeOf(Integer));
if (Result < 0) then Exit;
{$IFDEF MSWINDOWS}
// Windows 下重试次数为 3 次, 无法修改
LKeepAlive.onoff := 1;
LKeepAlive.keepalivetime := AIdleSeconds * 1000;
LKeepAlive.keepaliveinterval := AInterval * 1000;
LBytes := 0;
Result := WSAIoctl(ASocket, SIO_KEEPALIVE_VALS, @LKeepAlive, SizeOf(tcp_keepalive),
nil, 0, @LBytes, nil, nil);
{$ELSEIF defined(MACOS)}
// MAC 下 TCP_KEEPALIVE 相当于 Linux 中的 TCP_KEEPIDLE
// 暂不支持 TCP_KEEPINTVL 和 TCP_KEEPCNT
// OSX 10.9.5下默认的心跳参数
// sysctl -A | grep net.inet.tcp.*keep
// **************************************
// net.inet.tcp.keepidle: 7200000
// net.inet.tcp.keepintvl: 75000
// net.inet.tcp.keepinit: 75000
// net.inet.tcp.keepcnt: 8
// net.inet.tcp.always_keepalive: 0
// **************************************
Result := SetSockOpt(ASocket, IPPROTO_TCP, TCP_KEEPALIVE, AIdleSeconds, SizeOf(Integer));
{$ELSEIF defined(LINUX) or defined(ANDROID)}
Result := SetSockOpt(ASocket, IPPROTO_TCP, TCP_KEEPIDLE, AIdleSeconds, SizeOf(Integer));
if (Result < 0) then Exit;
Result := SetSockOpt(ASocket, IPPROTO_TCP, TCP_KEEPINTVL, AInterval, SizeOf(Integer));
if (Result < 0) then Exit;
Result := SetSockOpt(ASocket, IPPROTO_TCP, TCP_KEEPCNT, ACount, SizeOf(Integer));
if (Result < 0) then Exit;
{$ENDIF}
end;
class function TSocketAPI.SetLinger(const ASocket: TSocket;
const AOnOff: Boolean; const ALinger: Integer): Integer;
var
LLinger: linger;
begin
if AOnOff then
LLinger.l_onoff := 1
else
LLinger.l_onoff := 0;
LLinger.l_linger := ALinger;
Result := SetSockOpt(ASocket, SOL_SOCKET, SO_LINGER, LLinger, SizeOf(linger));
end;
class function TSocketAPI.SetNonBlock(const ASocket: TSocket;
const ANonBlock: Boolean): Integer;
var
LFlag: Cardinal;
begin
{$IFDEF MSWINDOWS}
if ANonBlock then
LFlag := 1
else
LFlag := 0;
Result := ioctlsocket(ASocket, FIONBIO, LFlag);
{$ELSE}
{$IFDEF DELPHI}
LFlag := fcntl(ASocket, F_GETFL);
if ANonBlock then
LFlag := LFlag and not O_SYNC or O_NONBLOCK
else
LFlag := LFlag and not O_NONBLOCK or O_SYNC;
Result := fcntl(ASocket, F_SETFL, LFlag);
{$ELSE}
LFlag := fpfcntl(ASocket, F_GETFL);
if ANonBlock then
LFlag := LFlag and not O_SYNC or O_NONBLOCK
else
LFlag := LFlag and not O_NONBLOCK or O_SYNC;
Result := fpfcntl(ASocket, F_SETFL, LFlag);
{$ENDIF DELPHI}
{$ENDIF MSWINDOWS}
end;
class function TSocketAPI.SetReUseAddr(const ASocket: TSocket;
const AReUseAddr: Boolean): Integer;
var
LOptVal: Integer;
begin
if AReUseAddr then
LOptVal := 1
else
LOptVal := 0;
Result := TSocketAPI.SetSockOpt(ASocket, SOL_SOCKET, SO_REUSEADDR, LOptVal, SizeOf(Integer));
end;
class function TSocketAPI.SetReUsePort(const ASocket: TSocket;
const AReUsePort: Boolean): Integer;
var
LOptVal: Integer;
begin
if AReUsePort then
LOptVal := 1
else
LOptVal := 0;
{$IFDEF LINUX}
Result := TSocketAPI.SetSockOpt(ASocket, SOL_SOCKET, SO_REUSEPORT, LOptVal, SizeOf(Integer));
{$ELSE}
Result := -1;
{$ENDIF}
end;