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1 Theoretical Science Group

2 RPG D HASM 7 Map Friends Project DX ( ) ' ' ii TSG No. 211

............................... 13.................................. 15 DX ( )............................... 15 17 '98.......................... 17 '97.

3 E EEEEEEEEEEEEEEEEE E Network RPG DX( ) Micro Floppy Map Friends Project italk Tak TSG No

4 TSGer ( ) TSGer ReACT OB 10 (^_^;) TSG No. 211

5 10/15( ) :-) 10/16( ) 10/17( ) (^_^;) 10/18( ) 10/19( ) 10/20( ) 10/20( ) 0:00 2:00 7:00 11:00 12:00 15:00 18:30 21:00 23:00 10/22( ) 0:00 Tai 2:00 3:00 DX 18:00 10/23( ) 360dpi ( ) SelectObject() DeleteObject() TSG No

6 dpi 3 W ( 3 Tak. 2 kaneko3 (,, Tak. Tak. 1 Petzold SelectObject ( ) 2 30 :-) 4 TSG No. 211

7 RPG (italk) ( :D) ( ) RPG RPG 3 256x RPG Sword World (!) MIDI BGM FEP ATOK MS-IME 3 4 AWE64 Trio64 VRAM 2MB ( ) 5 reball 6 TSG No

8 RPG Hit Point 7 8 AI 9 Broken Pipe 10 ( ) TODO AI ( ) ( ) TSG Spy &Spy RPG AI NPC TODO 3D DirectX Ultima Online 3D 7 (Ys ) 8 client server ( ) 9 AI 5 AI 10 3 SIGPIPE?pipe client server socket UNIX Microsoft PC-UNIX socket 6 TSG No. 211

9 3D 3D HASM 3D 3 3D 20 4 VEA FPU Map Friends Project mfp FreeBSD mfp TSG No

10 Map Friends Project mfp ecc 11/21 (Fri) 4 9 ( > ) 10 mfp FPServer make FPServer PentiumPro DOS/V 20 PentiumPro FreeBSD !! ( ) 2 (^^;; FPServer make Segmentation Fault C++ (T_T) 10 8 TSG No. 211

106 PentiumPro DOS/V 20 PentiumPro FreeBSD 2.2.5 5000 24!

11 Map Friends Project 2 11/22 (Sat) 1 10 ( )!! P Tai! etc. ( ) 2 1 (Tak ) UTMC ( ) mfp X-Friends(2nd Window) 6 106!! KFC (T_T) KFC TSG No

12 Map Friends Project :P 11/23 (Sun) YAT TSGer 2 (^^;; 3 2 ( ) 5 KFC :P 1 11/24 (Mon) 3 NRPG MIDI BGM 10 TSG No. 211

13 3 Tak. 2 KFC 1 (^^;; YTA ( ) 3 kaneko ReACT TSG 105 KFC PHS 2 ( 11/25 (Tue) ReACT ReACT TSGer 98DOS TSG No

14 2 C++ Null pointer assignment 1 C++ 98 master.lib 1 UNIX Segmentation fault 12 TSG No. 211

15 Windows Windows Windows 3D VC5 VC5 MS VC5 VC5 VC5 VC5 VC5 MFC DOS Win public TSG No

16 C 3 4!! 486DX2,66MHz, 12M VC5 106 ( 200 ) ( ( ( TSG No. 211

17 2 P.S.: ( (^^;;) 75% 1 C++ DX ( ) 1 : :D TSG No

18 DX ( ) MFC DEVSTUDIO 3 16 TSG No. 211

19 E EEEEEEEEEEEE E ' k 1k : or TM 1 1 \ " 1 1 TSG No

$or TM 1 1 \ " 1$

20 '98 2 TSGer TSG TSG 3 PC98-NX VS20C etc 1 BASIC MML BEEP Perl CGI Perl :) 4 TSG & 2 K 2 TSG KONNO Shun-ichi TSG No. 211

21 '98 TSG YTA C++ 5 TSG 1 100MHz 100MHz II intel 440BX 7 intel 7 Ali VIA Sis 7 100MHz 3 Ali Alladin5 1 COMDEX FALL intel 430TX Ali Alladin Alladin5 5 1 TSG No

22 '98 100MHz SDRAM 10ns SDRAM 100MHz MHz 100MHz Tom's Hardware guide 100MHz SDRAM 4 100MHz 100MHz WAITA Hironori, YTA (^_^;) ( TSG TEX 6 HTML 7 m( )m TSUJIKAWA Toru, 01ParaGRAPH 6 7 : :p 20 TSG No. 211

23 ' TACT 1 3 defrag Java g TSG No

24 '98 SHIMOMURA Tetsuto TACT, TSG 8 INO Yusuke TSGer : 22 TSG No. 211

25 '98 OKUBO Ryo 4 TSG 9 TSG TSGer 9 _ _ _ TSG TSG No

26 '98 TSG 10 TSG TSGer TSG :p ISHIBASHI Shinobu ebi KOIZUMI Akie ItaO 305 ` ' 10 1 SAKAO Yosuke ItaO, ItaO 10 : 24 TSG No. 211

27 ' TSG TEX dviout TSG TEX :D~~ 3 4 TSG italk TEX TSG No

28 '98 :) TEX FUKUBAYASHI Ippei 26 TSG No. 211

29 '97 '97 97 TSG KFC 5 7 TSG TSGer (T_T) 98 :) TSG No

30 ' :) 2 2 (^^;; UEHARA Yosuke 204 ( ) : 1996/12/19 : (157 ) : : 36 : 14 % MPEG-Audio TEX (warai) ( TSG No. 211

31 ' ( ) : 1997/3/8 : : : 44 : 36 % pl A TEX2" small (^^;; (Direct3D ) 206 ('97 ) : 1997/4/1 : xdm : : 20 : 20 % xdm ascmac tabular (^^;; 207 ( ) : 1997/5/10 : : : 38 : 36 % :) MEGADEMO, 3x5 TSG No

32 ' ( ) : 1997/7/20 : : : 42 : 16 % CD-R 3x5 3x5 2 ( ) TSGer TEX mfp djgpp 209 ( ) : 1997/11/1 : you know? : : 50 : 24 % ( ) goth FA (1998 ) : 1997/11/10 : : : 8 : 100 % 2 30 TSG No. 211

33 ' ( ) : 1997/11/19 : fp7220::opensocket() :, : 16 TEA : 25 % TEA 98dos-ppp ( ) : 1997/12/18 : (none) : : 22 : % 2 1 ( ) ( ) 211 (TSG No. 211) : 1997/12/19 : : : :?? % TSG No

34 '97 5, :D HTML ( ( ) ( OFF CD-R ) :D all 305 TSGer TSGer 32 TSG No. 211

35 ' TRADE MO TRADE CD TRADE MO BBS Plextor MP3 encoder SAKAMOTO Takahiro TSG TSG TSG TSG 6M italk.ne.jp 0 ock Perl ock 1 0 TSG No

36 ' BANDO Daigoro PC MO CD-R TSG TANGE Yoshio italk italk 2 3 TSG TSG No. 211

37 '97!? or % UMAMOTO Hideki ( ) TSG No

38 ' SUGAWARA Yutaka HASM HOBARA Rei 4 : TSG No. 211

39 E EEEEEEEE E LAN TCP/IP 2 OS CPU WWW FTP TSG No

40 IP Netscape www IP 1 IP Ver.4 IP IP IP JPNIC 2 IP 1 IP IP 16 A 2345 B 3456 A 4567 C HTTP 3 80 SMTP 4 25 FTP TELNET italk WWW 80 HTTP 80 ( ) HTTP 80 1 Internet Protocol 2 Japan Network Information Center 3 Hyper-Text Transfer Protocol 4 Simple Mail Transfer Protocol 5 File Transfer Protocol 38 TSG No. 211

41 TCP UDP TCP 6 UDP 7 2 TCP TCP UDP UDP CPU Intel x86 CPU Sun Sparc UNIX OS sys/types.h sys/socket.h, netinet/in.h, arpa/inet.h, netdb.h include Windows winsock.h include wsock32.lib TCP 1. socket() int socket(int af, int type, int protocol ); af AF INET 6 Transfer Control Protocol 7 User Datagram Protocol TSG No

42 type SOCK STREAM UDP SOCK DGRAM protocol 0 UNIX Windows bind() int bind(int s, const struct sockaddr *name, int namelen ); s name sockaddr in sockaddr3 namelen sizeof(&name) sockaddr in struct sockaddr_in{ short sin_family; // AF_INET u_short sin_port; // ( ) u_long sin_addr.s_addr; // INADDR_ANY } bind() htons() 16 htons(12345) CPU bind() listen() int listen(int s, int backlog ); s backlog SOMAXCONN 5 accept() 40 TSG No. 211

43 backlog 4. accept() accept() accept() sleep select() int accept(int s, const struct sockaddr *addr, int *addrlen ); s addr sockaddr in sockaddr3 addrlen 3addrlen sizeof(&addr) s s 01 addr addrlen addr TCP 1. IP 2. connect() int connect(int s, const struct sockaddr *name, int namelen ); s name sockaddr in sockaddr3 namelen sizeof(&name) sockaddr in struct sockaddr_in{ TSG No

44 } short sin_family; // AF_INET u_short sin_port; // ( ) u_long sin_addr.s_addr; // IP htons() IP htonl() 0-1 TCP send() int send(int s, const char *buf, int len, int flags ); s buf len ags 0 len len send() select() 01 send() recv() recv() 42 TSG No. 211

45 int recv(int s, char *buf, int len, int flags ); s buf len buf ags 0 1 recv() select() TCP UNIX close() Windows closesocket() UDP UDP 1. socket() 2 SOCK DGRAM TCP 2. bind() TCP 3. sendto() int sendto(int s, const char *buf, int len, int flags, const struct sockaddr *to, int tolen ); s bind() buf len ags 0 to sockaddr in TSG No

46 tolen sizeof(&to) Windows 64KB recvfrom() int recvfrom(int s, char *buf, int len, int flags, struct sockaddr *from, int *fromlen); s bind() buf len ags 0 to sockaddr in tolen 3tolen sizeof(&to) 01 IP IP gethostbyname() struct hostent* gethostbyname(const char *name ); name name \ hostent struct hostent { char *h_name; char **h_aliases; short h_addrtype; short h_length; char **h_addr_list; }; 44 TSG No. 211

47 h addr list[0] IP h addr char3 unsigned long IP NULL gethostbyname() 1 \ " IP unsigned long inet addr() char3 host name struct hostent *host; unsigned long IPaddr = inet_addr(host_name); if(ipaddr == -1){ host = gethostbyname(host_name); if(host) IPaddr = *((unsigned long *)(host->h_addr)); } IPaddr IP IP IP getpeername() int getpeername(int s, struct sockaddr *name, int *namelen ); s name sockaddr in ( ) namelen sizeof(&name) 0 01 name->sin addr IP (32 ) IP gethostbyaddr() struct hostent *gethostbyaddr(const char *addr, int len, int type ); addr IP ( ) len IP 4 type IP AF INET TSG No

48 hostent hostent h name NULL IP inet ntoa() IP char *inet_ntoa(struct in_addr in ); in IP \ " IP s char *name = NULL; struct sockaddr_in addr; int len = sizeof(addr); if(!getpeername(s, (sockaddr*)&addr, &len) ){ struct hostent *host; host = gethostbyaddr((char*)&addr.sin_addr, 4, AF_INET); if(host) name = host->h_name; else name = inet_ntoa(addr.sin_addr); } name name == NULL select() send() recv() select() select() select() fd set typedef fd set FD ZERO() FD_ZERO(fd set *fds ) 46 TSG No. 211

49 fds fd set FD ZERO() fd set FD SET() FD_SET(int s, fd set *fds ) s fds s fd set FD SET() fd set FD CLR() FD_CLR(int s, fd set *fds ) s fds s fd set FD ZERO() fd set FD ISSET() FD_ISSET(int s, fd set *fds ) s fds s fd set s 0 0 select() int select(int nfds, fd_set *rfds, fd_set *wrds, fd_set *efds, struct timeval *timeout ); nfds rfds wfds efds +1 rfds wfds efds timeout select() nfds select() 3 fd set +1 FD SET() nfds select() +1 TSG No

50 rfds wfds efds 3 select() 3 TCP listen() accept() rfds select() timeout 0 NULL timeval UNIX OS sys/time.h struct timeval { long tv sec; // long tv usec; // } select() 3 0 select() 01 select() while(1){ struct timeval timeout = {0, 0}; fd_set rfds, wrds, efds; FD_ZERO(&rfds); FD_ZERO(&wfds); FD_ZERO(&efds); FD_SET(sock, &rfds); FD_SET(sock, &wfds); FD_SET(sock, &efds); int n = select(sock +1, &rfds, &wfds, &efds, &timeout); if(n > 0){ if(fd_isset(sock, &rfds)) if(fd_isset(sock, &wfds)) if(fd_isset(sock, &efds)) } else } select() 1 48 TSG No. 211

51 UNIX OS select() fd set UNIX OS SIGPIPE SIGPIPE signal() UNIX limit OS bind() server sock bind() #ifdef _DEBUG_ int temp = 1; if(setsockopt(server_sock, SOL_SOCKET, SO_REUSEADDR, &temp, sizeof(temp))) fprintf(stderr, "setsockopt() failed"); #endif Windows OS Windows (Winsock) WSAData wsad; WSAStartup(MAKEWORD(1,1), &wsad); Windows API WSAAsyncSelect() Windows Windows 64 FD SETSIZE TSG No

52 OS KANEKO Wataru 50 TSG No. 211

53 1. TSGer (a) (b) 1 (c) 1 PHS (d) (e) TSG 1 (f) :D / 153 3{8{1 305 Telephone: 03{5454{4343 (C) Theoretical Science Group, University of Tokyo, All rights are reserved. Printed in Japan.

54 THEORETICAL SCIENCE GROUP

buho210.dvi

buho210.dvi int fp7220::opensocket( void ) { struct hostent *hp; struct sockaddr_in sin; unsigned timeout; int result, s; } // make socket if (!(hp = gethostbyname(szserverloc)) ) return -1; if ( (s = socket(af_inet,