OS/2 Professional

home *** CD-ROM | disk | FTP | other *** search

/ OS/2 Professional / OS2PRO194.ISO / os2 / wps / com / c_kermit / sources / ckcmai.c < prev next >

Wrap

C/C++ Source or Header | 1990-01-01 | 17.2 KB | 425 lines

char *versio = "C-Kermit S/W, 5A(119) 2 Mar 1990"; /* Version herald. */ long vernum = 501119; /* Numeric version number, keep these two in sync! */ /* C K C M A I -- C-Kermit Main program */ /* Author: Frank da Cruz (fdc@columbia.edu, FDCCU@CUVMA.BITNET), Columbia University Center for Computing Activities. First released January 1985. Copyright (C) 1985, 1990, Trustees of Columbia University in the City of New York. Permission is granted to any individual or institution to use, copy, or redistribute this software so long as it is not sold for profit, provided this copyright notice is retained. */ /* The Kermit file transfer protocol was developed at the Columbia University Center for Computing Activities (CUCCA). It is named after Kermit the Frog, star of the television series THE MUPPET SHOW; the name is used by permission of Henson Associates, Inc. "Kermit" is also Celtic for "free". */ /* Thanks to at least the following people for their contributions to this program over the years: Chris Adie, Edinburgh U, Scotland (OS/2 support) Larry Afrin, Clemson U Barry Archer, U of Missouri Robert Andersson, Oslo, Norway Chris Armstrong, Brookhaven National Lab (OS/2) Fuat Baran, CUCCA Stan Barber, Rice U Charles Brooks, EDN Mike Brown, Purdue U Mark Buda, DEC (VAX/VMS) Bill Catchings, formerly of CUCCA Bob Cattani, Columbia U CS Dept Howard Chu, U of Michigan Bill Coalson, McDonnell Douglas Alan Crosswell, CUCCA Jeff Damens, formerly of CUCCA Mark Davies, Bath U, UK Joe R. Doupnik, Utah State U Kristoffer Eriksson, Peridot Konsult AB, Oerebro, Sweden (System V) John R. Evans, IRS, Kansas City Glenn Everhart, RCA Labs Herm Fischer, Encino, CA (extensive contributions to version 4.0) Carl Fongheiser, CWRU Christine M. Gianone, CUCCA John Gilmore, UC Berkeley Yekta Gursel, MIT Jim Guyton, Rand Corp Marion Kananson, hakanson@cs.orst.edu Stan Hanks, Rice U. Ken Harrenstein, SRI Chuck Hedrick, Rutgers U Ron Heiby, Motorola Micromputer Division Steve Hemminger, Tektronix Randy Huntziger, National Library of Medicine Phil Julian, SAS Institute Howie Kaye, CUCCA Rob Kedoin, Linotype Co, Hauppauge, NY (OS/2) Jim Knutson, U of Texas at Austin Bo Kullmar, Kista, Sweden John Kunze, UC Berkeley Bob Larson, USC (OS-9) David Lawyer, UC Irvine S.O. Lidie, Lehigh U Kevin Lowey, U of Saskatchewan (OS/2) David MacKenzie, Environmental Defense Fund, Rockefeller U Martin Maclaren, Bath U, UK Chris Maio, Columbia U CS Dept Leslie Mikesall, American Farm Bureau Martin Minow, DEC (VAX/VMS) Ray Moody, Purdue U Tony Movshon, NYU Dan Murphy, ??? Jim Noble, Planning Research Corporation (Macintosh) Ian O'Brien, Bath U, UK Paul Placeway, Ohio State U (Macintosh & more) Ken Poulton, HP Labs Frank Prindle, NADC Anton Rang, ??? Scott Ribe, ??? Jack Rouse, SAS Institute (Data General and/or Apollo) Stew Rubenstein, Harvard U (VAX/VMS) Dan Schullman, DEC (modems, etc) Gordon Scott, Micro Focus, Newbury UK David Sizeland, U of London Medical School Bradley Smith, UCLA Andy Tanenbaum, Vrije U, Amsterdam, Netherlands Markku Toijala, Helsinki U of Technology Warren Tucker, Tridom Corp, Mountain Park, GA Dave Tweten, AMES-NAS Walter Underwood, Ford Aerospace Pieter Van Der Linden, Centre Mondial, Paris Ge van Geldorp, Netherlands Wayne Van Pelt, GE/CRD Mark Vasoll & Gregg Wonderly, Oklahoma State U (V7 UNIX) Paul Vixie (DEC) Stephen Walton, Calif State U, Northridge Lauren Weinstein Joachim Wiesel, U of Karlsruhe Michael Williams, UCLA Patrick Wolfe, Kuck & Associates, Inc. Farrell Woods, Concurrent (formerly Masscomp) Dave Woolley, CAP Communication Systems, London Ken Yap, U of Rochester (Telnet support) John Zeeff, Ann Arbor, MI */ #include "ckcsym.h" /* Macintosh once needed this */ #include "ckcasc.h" /* ASCII character symbols */ #include "ckcdeb.h" /* Debug & other symbols */ #include "ckcker.h" /* Kermit symbols */ #ifndef NULL #define NULL 0 #endif /* Text message definitions.. each should be 256 chars long, or less. */ #ifdef MAC char *hlptxt = "\r\ MacKermit Server Commands:\r\ \r\ BYE\r\ FINISH\r\ GET filespec\r\ REMOTE CWD directory\r\ REMOTE HELP\r\ SEND filespec\r\ \r\0"; #else #ifdef AMIGA char *hlptxt = "C-Kermit Server Commands:\n\ \n\ GET filespec, SEND filespec, FINISH, BYE, REMOTE HELP\n\ \n\0"; #else #ifdef OS2 char *hlptxt = "C-Kermit Server REMOTE Commands:\n\ \n\ GET files REMOTE CWD [dir] REMOTE DIRECTORY [files]\n\ SEND files REMOTE SPACE [dir] REMOTE HOST command\n\ FINISH REMOTE DELETE files REMOTE TYPE files\n\ BYE REMOTE HELP\n\ \n\0"; #else char *hlptxt = "C-Kermit Server REMOTE Commands:\n\ \n\ GET files REMOTE CWD [dir] REMOTE DIRECTORY [files]\n\ SEND files REMOTE SPACE [dir] REMOTE HOST command\n\ MAIL files REMOTE DELETE files REMOTE WHO [user]\n\ BYE REMOTE PRINT files REMOTE TYPE files\n\ FINISH REMOTE HELP\n\ \n\0"; #endif #endif #endif #ifdef OSK char *srvtxt = "\r\l\ C-Kermit server starting. Return to your local machine by typing\r\l\ its escape sequence for closing the connection, and issue further\r\l\ commands from there. To shut down the C-Kermit server, issue the\r\l\ BYE command to logout, or the FINISH command and then reconnect.\r\l\ \l\0"; #else char *srvtxt = "\r\n\ C-Kermit server starting. Return to your local machine by typing\r\n\ its escape sequence for closing the connection, and issue further\r\n\ commands from there. To shut down the C-Kermit server, issue the\r\n\ BYE command to logout, or the FINISH command and then reconnect.\r\n\ \r\n\0"; #endif /* Declarations for Send-Init Parameters */ int spsiz = DSPSIZ, /* Current packet size to send */ spmax = DSPSIZ, /* (PWP) Biggest packet size we can send */ /* (see rcalcpsz()) */ spsizf = 0, /* Flag to override what you ask for */ rpsiz = DRPSIZ, /* Biggest we want to receive */ urpsiz = DRPSIZ, /* User-requested rpsiz */ maxrps = MAXRP, /* Maximum incoming long packet size */ maxsps = MAXSP, /* Maximum outbound l.p. size */ maxtry = MAXTRY, /* Maximum retries per packet */ wslots = 1, /* Window size in use */ wslotsr = 1, /* Window size requested */ wslotsn = 1, /* Window size negotiated */ timeouts = 0, /* For statistics reporting */ spackets = 0, /* ... */ rpackets = 0, /* ... */ retrans = 0, /* ... */ crunched = 0, /* ... */ wmax = 0, /* ... */ timint = DMYTIM, /* Timeout interval I use */ srvtim = DSRVTIM, /* Server command wait timeout */ rtimo = URTIME, /* Timeout I want you to use */ timef = 0, /* Flag to override what you ask */ npad = MYPADN, /* How much padding to send */ mypadn = MYPADN, /* How much padding to ask for */ bctr = 1, /* Block check type requested */ bctu = 1, /* Block check type used */ ebq = MYEBQ, /* 8th bit prefix */ ebqflg = 0, /* 8th-bit quoting flag */ rqf = -1, /* Flag used in 8bq negotiation */ rq = 0, /* Received 8bq bid */ sq = 'Y', /* Sent 8bq bid */ rpt = 0, /* Repeat count */ rptq = MYRPTQ, /* Repeat prefix */ rptflg = 0; /* Repeat processing flag */ int capas = 9, /* Position of Capabilities */ atcapb = 8, /* Attribute capability */ atcapr = 1, /* requested */ atcapu = 0, /* used */ swcapb = 4, /* Sliding Window capability */ swcapr = 0, /* requested */ swcapu = 1, /* used */ lpcapb = 2, /* Long Packet capability */ lpcapr = 1, /* requested */ lpcapu = 0; /* used */ CHAR padch = MYPADC, /* Padding character to send */ mypadc = MYPADC, /* Padding character to ask for */ seol = MYEOL, /* End-Of-Line character to send */ eol = MYEOL, /* End-Of-Line character to look for */ ctlq = CTLQ, /* Control prefix in incoming data */ myctlq = CTLQ; /* Outbound control character prefix */ struct zattr iattr; /* Incoming file attributes */ /* Packet-related variables */ int pktnum = 0, /* Current packet number */ prvpkt = -1, /* Previous packet number */ sndtyp, /* Type of packet just sent */ rsn, /* Received packet sequence number */ rln, /* Received packet length */ size, /* Current size of output pkt data */ osize, /* Previous output packet data size */ maxsize, /* Max size for building data field */ spktl = 0, /* Length packet being sent */ rprintf, /* REMOTE PRINT flag */ rmailf; /* MAIL flag */ CHAR #ifdef NO_MORE /* Buffers used before sliding windows... sndpkt[MAXSP+100], /* Entire packet being sent */ recpkt[MAXRP+200], /* Packet most recently received */ data[MAXSP+4], /* Packet data buffer */ #endif padbuf[95], /* Buffer for send-padding */ *recpkt, *rdatap, /* Pointer to received packet data */ *data, /* Pointer to send-packet data */ srvcmd[MAXRP+4], /* Where to decode server command */ *srvptr, /* Pointer to above */ mystch = SOH, /* Outbound packet-start character */ stchr = SOH; /* Incoming packet-start character */ /* File-related variables */ CHAR filnam[256]; /* Name of current file. */ int nfils; /* Number of files in file group */ long fsize; /* Size of current file */ /* Communication line variables */ CHAR ttname[50]; /* Name of communication line. */ int parity, /* Parity specified, 0,'e','o',etc */ flow, /* Flow control, 1 = xon/xoff */ speed = -1, /* Line speed */ turn = 0, /* Line turnaround handshake flag */ turnch = XON, /* Line turnaround character */ duplex = 0, /* Duplex, full by default */ #ifdef OS2 escape = 035, /* Escape character for connect */ #else escape = 034, /* Escape character for connect */ #endif delay = DDELAY, /* Initial delay before sending */ mdmtyp = 0; /* Modem type (initially none) */ int network = 0; /* Network vs tty connection */ int tlevel = -1; /* Take-file command level */ /* Statistics variables */ long filcnt, /* Number of files in transaction */ flci, /* Characters from line, current file */ flco, /* Chars to line, current file */ tlci, /* Chars from line in transaction */ tlco, /* Chars to line in transaction */ ffc, /* Chars to/from current file */ tfc, /* Chars to/from files in transaction */ rptn; /* Repeated characters compressed */ int tsecs; /* Seconds for transaction */ /* Flags */ int deblog = 0, /* Flag for debug logging */ pktlog = 0, /* Flag for packet logging */ seslog = 0, /* Session logging */ tralog = 0, /* Transaction logging */ displa = 0, /* File transfer display on/off */ stdouf = 0, /* Flag for output to stdout */ stdinf = 0, /* Flag for input from stdin */ xflg = 0, /* Flag for X instead of F packet */ hcflg = 0, /* Doing Host command */ fncnv = 1, /* Flag for file name conversion */ binary = 0, /* Flag for binary file */ savmod = 0, /* Saved file mode (whole session) */ bsave = 0, /* Saved file mode (per file) */ bsavef = 0, /* Flag if bsave was used. */ cmask = 0177, /* Connect byte mask */ fmask = 0377, /* File byte mask */ warn = 0, /* Flag for file warning */ quiet = 0, /* Be quiet during file transfer */ local = 0, /* Flag for external tty vs stdout */ server = 0, /* Flag for being a server */ cnflg = 0, /* Connect after transaction */ cxseen = 0, /* Flag for cancelling a file */ czseen = 0, /* Flag for cancelling file group */ keep = 0, /* Keep incomplete files */ unkcs = 1, /* Keep file w/unknown character set */ nakstate = 0; /* In a state where we can send NAKs */ /* Variables passed from command parser to protocol module */ char parser(); /* The parser itself */ char sstate = 0; /* Starting state for automaton */ char *cmarg = ""; /* Pointer to command data */ char *cmarg2 = ""; /* Pointer to 2nd command data */ char **cmlist; /* Pointer to file list in argv */ /* Flags for the ENABLE and DISABLE commands */ int en_cwd = 1; /* CD/CWD */ int en_del = 1; /* DELETE */ int en_dir = 1; /* DIRECTORY */ int en_fin = 1; /* FINISH/BYE */ int en_get = 1; /* GET */ int en_hos = 1; /* HOST */ int en_sen = 1; /* SEND */ int en_set = 1; /* SET */ int en_spa = 1; /* SPACE */ int en_typ = 1; /* TYPE */ int en_who = 1; /* WHO */ /* Miscellaneous */ char **xargv; /* Global copies of argv */ int xargc; /* and argc */ extern char *dftty; /* Default tty name from ckx???.c */ extern int dfloc; /* Default location: remote/local */ extern int dfprty; /* Default parity */ extern int dfflow; /* Default flow control */ /* (PWP) buffered file input and output buffers; see ckcfns.c getpkt(). */ CHAR zinbuffer[INBUFSIZE], zoutbuffer[INBUFSIZE]; CHAR *zinptr, *zoutptr; int zincnt, zoutcnt; /* M A I N -- C-Kermit main program */ #ifdef aegis /* On the Apollo, intercept main to insert a cleanup handler */ ckcmai(argc,argv) int argc; char **argv; { #else main(argc,argv) int argc; char **argv; { #endif char *strcpy(); /* Do some initialization */ xargc = argc; /* Make global copies of argc */ xargv = argv; /* ...and argv. */ sstate = 0; /* No default start state. */ if (sysinit() < 0) doexit(BAD_EXIT); /* System-dependent initialization. */ strcpy(ttname,dftty); /* Set up default tty name. */ local = dfloc; /* And whether it's local or remote. */ parity = dfprty; /* Set initial parity, */ flow = dfflow; /* and flow control. */ /* Attempt to take ini file before doing command line */ prescan(); /* But first check for -y option */ cmdini(); /* Sets tlevel */ while (tlevel > -1) { /* Execute init file. */ sstate = parser(); /* Loop getting commands. */ if (sstate) proto(); /* Enter protocol if requested. */ } /* Look for a UNIX-style command line... */ if (argc > 1) { /* Command line arguments? */ sstate = cmdlin(); /* Yes, parse. */ if (sstate) { proto(); /* Take any requested action, then */ if (!quiet) conoll(""); /* put cursor back at left margin, */ if (cnflg) conect(); /* connect if requested, */ doexit(GOOD_EXIT); /* and then exit with status 0. */ } } #ifdef OS2 if (speed==-1) speed = ttspeed(); /* Unless explicitly changed, use the current line speed */ #endif /* If no action requested on command line, enter interactive parser */ herald(); /* Display program herald. */ while(1) { /* Loop getting commands. */ sstate = parser(); if (sstate) proto(); /* Enter protocol if requested. */ } }