mirror of git://git.psyced.org/git/psyclpc
278 lines
12 KiB
C
278 lines
12 KiB
C
//
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// Wunderland Mudlib
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//
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// telnet.h -- Standard telnet definitions
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//
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// $Log: telnetneg.h,v $
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// Revision 1.1.1.1 2006/07/10 02:42:09 lynx
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// ldmud 3.3.714
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//
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// Revision 1.10 2002/12/02 17:31:56 Fiona
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// sb_ttype und sb_xdisp
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//
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#ifndef __TELNET_H__
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#define __TELNET_H__
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// ******************** Telnet State Machine ********************
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// Each option could be in one of the following four states. There
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// is also a one element queue for each option. Mind that each option
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// could have different states for the lokal and the remote system.
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// Six bits of TS_STATE are used.
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#define NO 0x00 // option is deactivated
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#define YES 0x01 // option is activated
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#define WANT_NO 0x02 // option is activated, negotiating to switch off
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#define WANT_YES 0x03 // option is deactivated, negotiating to switch on
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#define Q_EMPTY 0x00 // no entry in queue
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#define Q_OPPOSITE 0x04 // request to toggle state in queue
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#define REJECTED 0x08 // option denied, don't retry
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// State and queue on the remote side (DO + DONT) (bits 0-3)
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#define Q_REMOTE(x) ((x) & 0x03)
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#define S_REMOTE(x, y) (((x) & ~0x03) | (y))
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#define Q_REMOTEQ(x) ((x) & 0x04)
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#define S_REMOTEQ(x, y) (((x) & ~0x04) | (y))
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#define Q_REMOTER(x) ((x) & 0x08)
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#define S_REMOTER(x, y) (((x) & ~0x08) | (y))
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// State and queue on this side (WILL + WONT) (bits 4-7)
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#define Q_LOCAL(x) (((x) & 0x30) >> 4)
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#define S_LOCAL(x,y) (((x) & ~0x30) | ((y) << 4))
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#define Q_LOCALQ(x) (((x) & 0x40) >> 4)
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#define S_LOCALQ(x, y) (((x) & ~0x40) | ((y) << 4))
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#define Q_LOCALR(x) (((x) & 0x80) >> 4)
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#define S_LOCALR(x, y) (((x) & ~0x80) | ((y) << 4))
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// Access to mapping ts
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#define TS_STATE 0 // option state (yes, no, want yes, want no, Q)
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#define TS_SB 1 // sb infos (option specific)
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#define TS_R_AGREE 2 // preference or decision callback (remote state)
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#define TS_L_AGREE 3 // preference or decision callback (local state)
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#define TS_CB 4 // option state change callback (yes, no)
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#define TS_SBCB 5 // option sb callback
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#define TS_SIZE 6
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// To have everything in one place we have one special key in ts
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#define TS_EXTRA -1 // key
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#define TSE_STATE 0 // input_to's INPUT_NOECHO and/or INPUT_CHARMODE
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#define TSE_TELNETNEG 1 // client answered a negotiation
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#define TSE_LOG 2 // negotiation log
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// Bits used for the charmode and noecho state of the connection
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// Bits 0 + 1 used for TSE_NOECHO (set for noecho mode)
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// Bits 2 + 3 used for TSE_SGA_CHAR (set for charmode using SGA)
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// Bits 4 + 5 used for TSE_LM_CHAR (set for charmode using LINEMODE)
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// each representing the state with NO, YES, WANT_NO and WANT_YES
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#define Q_TSE_NOECHO ((ts[TS_EXTRA, TSE_STATE]) & 0x03)
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#define S_TSE_NOECHO(y) (ts[TS_EXTRA, TSE_STATE] = \
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((ts[TS_EXTRA, TSE_STATE]) & ~0x03) | (y))
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#define Q_TSE_SGA_CHAR (((ts[TS_EXTRA, TSE_STATE]) & 0x0c) >> 2)
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#define S_TSE_SGA_CHAR(y) (ts[TS_EXTRA, TSE_STATE] = \
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((ts[TS_EXTRA, TSE_STATE]) & ~0x0c) | ((y) << 2))
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#define Q_TSE_LM_CHAR (((ts[TS_EXTRA, TSE_STATE]) & 0x30) >> 4)
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#define S_TSE_LM_CHAR(y) (ts[TS_EXTRA, TSE_STATE] = \
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((ts[TS_EXTRA, TSE_STATE]) & ~0x30) | ((y) << 4))
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#ifdef NEED_PRIVATE_PROTOTYPES
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#ifndef __TELNET_H_P_PROTO__
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#define __TELNET_H_P_PROTO__
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private int send(int* x);
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private void tel_error(string err);
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private void start_telnetneg();
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private string telnet_to_text(int command, int option, int* args);
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private void sb_ttype(int command, int option, int* optargs);
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private void sb_xdisp(int command, int option, int* optargs);
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private void sb_tspeed(int command, int option, int* optargs);
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private void sb_env(int command, int option, int* optargs);
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private void sb_naws(int command, int option, int* optargs);
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private void sb_status(int command, int option, int* optargs);
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private void sb_line(int command, int option, int* optargs);
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private int neg_sga(int command, int option);
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private int neg_echo(int command, int option);
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private int neg_bin(int command, int option);
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private int neg_tm(int command, int option);
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private void start_sb(int command, int option);
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private void start_eor(int command, int option);
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private void start_lm(int command, int option);
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private void cb_echo(int command, int option);
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private void cb_sga(int command, int option);
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static void modify_prompt(); // std/player/prompt.c
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#endif
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#endif // NEED_PRIVATE_PROTOTYPES
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// ************ Definitions for the TELNET protocol *************
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#define IAC 255 /* interpret as command: */
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#define DONT 254 /* you are not to use option */
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#define DO 253 /* please, you use option */
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#define WONT 252 /* I won't use option */
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#define WILL 251 /* I will use option */
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#define SB 250 /* interpret as subnegotiation */
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#define SE 240 /* end sub negotiation */
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#define EOR 239 /* end of record (transparent mode) */
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#define TELCMDS ({\
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"EOR", "SE", "NOP", "DMARK", "BRK", "IP", "AO", "AYT", "EC",\
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"EL", "GA", "SB", "WILL", "WONT", "DO", "DONT", "IAC",\
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})
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/* backward starting with IAC == 255 */
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#define TELCMD2STRING(x) (((256-x)<sizeof(TELCMDS))?TELCMDS[<(256-x)]:(""+x))
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/* telnet options */
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#define TELOPT_BINARY 0 /* 8-bit data path */
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#define TELOPT_ECHO 1 /* echo */
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#define TELOPT_RCP 2 /* prepare to reconnect */
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#define TELOPT_SGA 3 /* suppress go ahead */
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#define TELOPT_NAMS 4 /* approximate message size */
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#define TELOPT_STATUS 5 /* give status */
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#define TELOPT_TM 6 /* timing mark */
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#define TELOPT_RCTE 7 /* remote controlled transmission and echo */
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#define TELOPT_NAOL 8 /* negotiate about output line width */
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#define TELOPT_NAOP 9 /* negotiate about output page size */
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#define TELOPT_NAOCRD 10 /* negotiate about CR disposition */
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#define TELOPT_NAOHTS 11 /* negotiate about horizontal tabstops */
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#define TELOPT_NAOHTD 12 /* negotiate about horizontal tab disposition */
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#define TELOPT_NAOFFD 13 /* negotiate about formfeed disposition */
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#define TELOPT_NAOVTS 14 /* negotiate about vertical tab stops */
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#define TELOPT_NAOVTD 15 /* negotiate about vertical tab disposition */
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#define TELOPT_NAOLFD 16 /* negotiate about output LF disposition */
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#define TELOPT_XASCII 17 /* extended ascic character set */
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#define TELOPT_LOGOUT 18 /* force logout */
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#define TELOPT_BM 19 /* byte macro */
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#define TELOPT_DET 20 /* data entry terminal */
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#define TELOPT_SUPDUP 21 /* supdup protocol */
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#define TELOPT_SUPDUPOUTPUT 22 /* supdup output */
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#define TELOPT_SNDLOC 23 /* send location */
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#define TELOPT_TTYPE 24 /* terminal type */
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#define TELOPT_EOR 25 /* end or record */
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#define TELOPT_TUID 26 /* TACACS user identification */
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#define TELOPT_OUTMRK 27 /* output marking */
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#define TELOPT_TTYLOC 28 /* terminal location number */
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#define TELOPT_3270REGIME 29 /* 3270 regime */
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#define TELOPT_X3PAD 30 /* X.3 PAD */
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#define TELOPT_NAWS 31 /* window size */
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#define TELOPT_TSPEED 32 /* terminal speed */
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#define TELOPT_LFLOW 33 /* remote flow control */
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#define TELOPT_LINEMODE 34 /* linemode negotiations */
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#define TELOPT_XDISPLOC 35 /* X Display Location */
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#define TELOPT_ENVIRON 36 /* Environment opt for Port ID */
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#define TELOPT_AUTHENTICATION 37/* authentication */
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#define TELOPT_ENCRYPT 38 /* authentication */
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#define TELOPT_NEWENV 39 /* Environment opt for Port ID */
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/* Inofficial, mud specific telnet options */
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#define TELOPT_COMPRESS 85 /* Mud Compression Protocol, v.1 */
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#define TELOPT_COMPRESS2 86 /* Mud Compression Protocol, v.2 */
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#define TELOPT_MSP 90 /* Mud Sound Protocol */
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#define TELOPT_MXP 91 /* Mud Extension Protocol */
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#define TELOPT_EXOPL 255 /* extended-options-list */
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#define NTELOPTS (1+TELOPT_NEWENV)
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#define TELOPTS ({\
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"BINARY", "ECHO", "RCP", "SGA", "NAME",\
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"STATUS", "TM", "RCTE", "NAOL", "NAOP",\
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"NAOCRD", "NAOHTS", "NAOHTD", "NAOFFD", "NAOVTS",\
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"NAOVTD", "NAOLFD", "XASCII", "LOGOUT", "BM",\
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"DET", "SUPDUP", "SUPDUP OUTPUT",\
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"SENDLOC", "TTYPE", "EOR", \
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"TACACS UID", "OUTPUT MARKING", "TTYLOC",\
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"3270 REGIME", "X.3 PAD", "NAWS","TSPEED","LFLOW","LINEMODE",\
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"XDISPLOC","ENVIRON","AUTHENTICATION","ENCRYPT","NEWENV",\
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"TELOPT 40", "TELOPT 41", "TELOPT 42", "TELOPT 43",\
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"TELOPT 44", "TELOPT 45", "TELOPT 46", "TELOPT 47",\
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"TELOPT 48", "TELOPT 49", "TELOPT 50", "TELOPT 51",\
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"TELOPT 52", "TELOPT 53", "TELOPT 54", "TELOPT 55",\
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"TELOPT 56", "TELOPT 57", "TELOPT 58", "TELOPT 59",\
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"TELOPT 60", "TELOPT 61", "TELOPT 62", "TELOPT 63",\
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"TELOPT 64", "TELOPT 65", "TELOPT 66", "TELOPT 67",\
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"TELOPT 68", "TELOPT 69", "TELOPT 70", "TELOPT 71",\
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"TELOPT 72", "TELOPT 73", "TELOPT 74", "TELOPT 75",\
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"TELOPT 76", "TELOPT 77", "TELOPT 78", "TELOPT 79",\
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"TELOPT 80", "TELOPT 81", "TELOPT 82", "TELOPT 83",\
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"TELOPT 84", "MCCP1", "MCCP2", "TELOPT 87",\
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"TELOPT 88", "TELOPT 89", "MSP", "MEP",\
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})
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#define TELOPT2STRING(x) ((x<sizeof(TELOPTS))?TELOPTS[x]:(""+x))
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/* sub-option qualifiers */
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#define TELQUAL_IS 0 /* option is... */
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#define TELQUAL_SEND 1 /* send option */
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#define TELQUAL_INFO 2
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#define TELQUAL2STRING(x) (x<3?({"IS","SEND","INFO"})[x]:""+x)
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/*
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* LINEMODE suboptions
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*/
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#define LM_MODE 1
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#define LM_FORWARDMASK 2
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#define LM_SLC 3
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#define MODE_EDIT 0x01
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#define MODE_TRAPSIG 0x02
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#define MODE_ACK 0x04
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#define MODE_SOFT_TAB 0x08
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#define MODE_LIT_ECHO 0x10
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#define MODE_MASK (MODE_EDIT|MODE_TRAPSIG|MODE_ACK|MODE_SOFT_TAB|MODE_LIT_ECHO)
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#define SLC_SYNCH 1
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#define SLC_BRK 2
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#define SLC_IP 3
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#define SLC_AO 4
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#define SLC_AYT 5
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#define SLC_EOR 6
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#define SLC_ABORT 7
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#define SLC_EOF 8
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#define SLC_SUSP 9
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#define SLC_EC 10
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#define SLC_EL 11
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#define SLC_EW 12
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#define SLC_RP 13
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#define SLC_LNEXT 14
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#define SLC_XON 15
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#define SLC_XOFF 16
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#define SLC_FORW1 17
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#define SLC_FORW2 18
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#define SLC_MCL 19
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#define SLC_MCR 20
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#define SLC_MCWL 21
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#define SLC_MCWR 22
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#define SLC_MCBOL 23
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#define SLC_MCEOL 24
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#define SLC_INSRT 25
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#define SLC_OVER 26
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#define SLC_ECR 27
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#define SLC_EWR 28
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#define SLC_EBOL 29
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#define SLC_EEOL 30
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#define SLC_NAMES ({"0", "SYNCH", "BRK", "IP", "AO", "AYT", "EOR", \
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"ABORT", "EOF", "SUSP", "EC", "EL", "EW", "RP", \
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"LNEXT", "XON", "XOFF", "FORW1", "FORW2", \
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"MCL", "MCR", "MCWL", "MCWR", "MCBOL", "MCEOL", \
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"INSRT", "OVER", "ECR", "EWR", "EBOL", "EEOL"})
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#define SLC2STRING(x) ((x)<sizeof(SLC_NAMES)?SLC_NAMES[x]:sprintf("%02x",x))
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#define SLC_NOSUPPORT 0
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#define SLC_CANTCHANGE 1
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#define SLC_VARIABLE 2
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#define SLC_DEFAULT 3
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#define SLC_ACK 0x80
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#define SLC_FLUSHIN 0x40
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#define SLC_FLUSHOUT 0x20
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#define SLC_LEVELBITS 0x03
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#define SLC_FLAGNAME ({ "NOSUPPORT", "CANTCHANGE", "VARIABLE", "DEFAULT" })
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#define ENV_VAR 0
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#define ENV_VALUE 1
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#define ENV_ESC 2
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#define ENV_USERVAR 3
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#endif
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