Ok this is a snippet of Purple Dragons telnet negotiation code adapted to the
stock rom, this code just shows how it can be done, there is no actual code
using the results of the telnet negotiation included, except handling of
TELOPT_EOR. You will have to do that on your own :) this code should be easy
enough to expand to accomodate other telnet negotiations. by default the code
responds with WONT or DONT to things that it doesn't understand.
if you want to use the NAWS, then look on Pete Vidler's homepage -
http://www.vidler.clara.net/ - on the automap tutorial, there is code in it
that can be easily modified to format the width of room descriptions.
Add this somewhere on top of comm.c
--------------------------------------------------------------------------
/* necessary for telnet.h so we can use TELOPT and TELOPT_OK later */
#define TELOPTS
#define TELCMDS
#include "telnet.h"
--------------------------------------------------------------------------
Now find this in comm.c:
*
* Malloc debugging stuff.
*/
and delete those 3 lines below:
const char echo_off_str [] = { IAC, WILL, TELOPT_ECHO, '\0' };
const char echo_on_str [] = { IAC, WONT, TELOPT_ECHO, '\0' };
const char go_ahead_str [] = { IAC, GA, '\0' };
then add this at the same place instead:
char echo_off_str [] = { IAC, WILL, TELOPT_ECHO, '\0' };
char echo_on_str [] = { IAC, WONT, TELOPT_ECHO, '\0' };
char echo_dont [] = { IAC, DONT, TELOPT_ECHO, '\0' };
char echo_do [] = { IAC, DO, TELOPT_ECHO, '\0' };
/* Telnet End-Of-Record */
char eor_do [] = { IAC, DO, TELOPT_EOR, '\0' };
char eor_will [] = { IAC, WILL, TELOPT_EOR, '\0' };
char eor_dont [] = { IAC, DONT, TELOPT_EOR, '\0' };
char eor_wont [] = { IAC, WONT, TELOPT_EOR, '\0' };
/* Telnet window size */
char naws_will [] = { IAC, WILL, TELOPT_NAWS, '\0' };
char naws_dont [] = { IAC, DONT, TELOPT_NAWS, '\0' };
char naws_do [] = { IAC, DO, TELOPT_NAWS, '\0' };
char naws_wont [] = { IAC, WONT, TELOPT_NAWS, '\0' };
char naws_sb [] = { IAC, SB, TELOPT_NAWS, '\0' };
/* kill the socket after receiving either of those 2 strings */
char iac_ip [] = { IAC, IP, '\0' };
char iac_susp [] = { IAC, SUSP, '\0' };
char iac_brk [] = { IAC, BREAK, '\0' };
/* telnet subnegotiation end */
char iac_se [] = { IAC, SE, '\0' };
/* go ahead after prompt string */
const char go_ahead_str [] = { IAC, GA, '\0' };
--------------------------------------------------------------------------
then find those 3 lines:
void read_from_buffer args( ( DESCRIPTOR_DATA *d ) );
void stop_idling args( ( CHAR_DATA *ch ) );
void bust_a_prompt args( ( CHAR_DATA *ch ) );
and add this below them:
void telopt_naws_do args( ( DESCRIPTOR_DATA *d ) );
#define MTELOPT(string, command, len) \
if (!memcmp(&buf[i],(string),strlen((string)))) \
{ \
i += strlen((string)) - 1; \
(command); \
i += len; \
idx = i; \
continue; \
}
/* descriptor flags are used because some mud clients initiate the telnet
negotiation before the player logs on, this way as long there is a socket
open there is also flag strip that can indicate various results of the
negotiation.
*/
void desc_flags(DESCRIPTOR_DATA *d)
{
CHAR_DATA *ch = CH(d);
if (!ch) return;
if (IS_SET(d->flags,DESC_TELOPT_EOR)) SET_BIT(ch->comm,COMM_TELNET_EOR);
else REMOVE_BIT(ch->comm,COMM_TELNET_EOR);
return;
}
/* init_telnet initiates the telnet negotiation with the mud client, although
most of the mud clients support it, there is still few dinosaurs that don't
gmud is one of them.
*/
void init_telnet(DESCRIPTOR_DATA *d)
{
/* telnet end-of-record */
write_to_descriptor( d->descriptor, eor_will, 0 );
/* telnet window size negotiation */
write_to_descriptor( d->descriptor, naws_do, strlen(naws_do) );
return;
}
void telopt_ignore(void)
{
return;
}
/* telopt_send is just a wrapper for write_to_descriptor, if you ever need to
send any string to the client that contains '\0' then you will have to modify
this so it reports the correct string lenght to the write_to_descriptor!
*/
void telopt_send(DESCRIPTOR_DATA *d, char *string)
{
write_to_descriptor( d->descriptor, string, strlen(string) );
return;
}
/* IAC IP or IAC SUSP means that the clients machine lost control connection
and you can safely drop the link of that player */
void telopt_close(DESCRIPTOR_DATA *d)
{
wiznet("IAC IP/SUSP received, closing link to $N.", CH(d),NULL,WIZ_LINKS,0,0);
close_socket(d);
return;
}
/* TELOPT_EOR works with few clients exactly the same way as TELOPT_GA the only
advantage of it is that it can be auto-negotiated so players won't have to
turn it on or off
*/
void telopt_eor(DESCRIPTOR_DATA *d, bool state)
{
if (state) SET_BIT(d->flags,DESC_TELOPT_EOR);
else REMOVE_BIT(d->flags,DESC_TELOPT_EOR);
return;
}
void telopt_echo(DESCRIPTOR_DATA *d, bool state)
{
if (state) SET_BIT(d->flags,DESC_TELOPT_ECHO);
else REMOVE_BIT(d->flags,DESC_TELOPT_ECHO);
return;
}
/* telopt_unknown handles all the negotiation commands that the mud server
doesn't understand
*/
int telopt_unknown(DESCRIPTOR_DATA *d, unsigned char c, unsigned char t,bool quiet)
{
char buf[MAX_STRING_LENGTH];
char cmd[MAX_INPUT_LENGTH];
char opt[MAX_INPUT_LENGTH];
char rev;
char len = 1;
if (c == '\n' || c == '\r' || c == '\0') return 0;
if (TELCMD_OK(c))
{
sprintf(cmd,"%s",TELCMD(c));
if (c == IAC) len = 1; /* IAC IAC */
else if (c >= SB) len = 2; /* IAC DONT/DO/WONT/WILL/SB ?? */
else len = 1; /* IAC ?? */
}
if (!quiet)
{
if (TELCMD_OK(c)) sprintf(cmd,"%s",TELCMD(c));
else sprintf(cmd,"[%u]",c);
if (TELOPT_OK(t)) sprintf(opt,"%s",TELOPT(t));
else if (TELCMD_OK(t)) sprintf(opt,"%s",TELCMD(t));
else if (t == 85 ) sprintf(opt,"COMPRESS-1");
else if (t == 86 ) sprintf(opt,"COMPRESS-2");
else sprintf(opt,"[%u]",t);
switch ((unsigned char)c)
{
case WILL: rev = WONT; break;
case WONT: rev = DONT; break;
case DONT: rev = WONT; break;
case DO: rev = DONT; break;
default: rev = c; break;
}
sprintf(buf,"%c%c%c",IAC,rev,t);
write_to_descriptor(d->descriptor,buf,0);
}
return len;
}
/* this function is called when clients sends IAC WILL NAWS */
void telopt_naws_do(DESCRIPTOR_DATA *d)
{
return;
/* IAC WILL NAWS second time around */
if ( IS_SET(d->flags,DESC_TELOPT_NAWS))
return;
write_to_descriptor( d->descriptor, naws_do, strlen(naws_do) );
return;
}
/* this function handles the actual NAWS sub negotiation and takes the 4 bytes
of data between IAC SB NAWS and IAC SE and converts them to the clients
screen dimensions, then saves them in d->scr_width and d->scr_height
*/
void telopt_naws(DESCRIPTOR_DATA *d, int i, char *inbuf)
{
unsigned int x = 0,
y = 0,
t1,t2;
SET_BIT(d->flags,DESC_TELOPT_NAWS);
t1 = (unsigned char) inbuf[i+1];
t2 = (unsigned char) inbuf[i+2];
x = t2 + (t1 * 16);
t1 = (unsigned char) inbuf[i+3];
t2 = (unsigned char) inbuf[i+4];
y = t2 + (t1 * 16);
d->scr_width = URANGE(1,x,150);
d->scr_height = URANGE(1,y, 80);
return;
}
/* process_telnet loops thru the buffer passed to it from read_from_descriptor
and takes care of any IAC sequences found, at the same time it appends
everything else to the end of d->inbuf
*/
void process_telnet(DESCRIPTOR_DATA *d, int len, char *buf)
{
unsigned int i, idx;
int iStart = strlen(d->inbuf);
if (len <= 0) return; /* nothing to process */
for (i = 0; i <= (unsigned)len; i++)
{
if (buf[i] == (signed char)IAC)
{
/* Telnet Window Size Negotiation */
MTELOPT( naws_sb, telopt_naws(d,i,buf), 4 );
MTELOPT( naws_will, telopt_naws_do(d), 0 );
MTELOPT( naws_wont, telopt_ignore(), 0 );
/* Telnet End-Of-Record Negotiation */
MTELOPT( eor_will, telopt_eor(d,TRUE), 0 );
MTELOPT( eor_do, telopt_eor(d,TRUE), 0 );
MTELOPT( eor_wont, telopt_eor(d,FALSE), 0 );
MTELOPT( eor_dont, telopt_eor(d,FALSE), 0 );
/* Telnet Echo Negotiation */
MTELOPT( echo_dont, telopt_echo(d,FALSE), 0 );
MTELOPT( echo_do, telopt_echo(d,TRUE), 0 );
/* IP and SUSP - kill the descriptor */
MTELOPT( iac_ip, telopt_close(d), 0 );
MTELOPT( iac_susp, telopt_close(d), 0 );
/* BRK - ignore */
MTELOPT( iac_brk, telopt_ignore(), 0 );
/* SE - end of sub negotiation */
MTELOPT( iac_se, telopt_ignore(), 0 );
if (buf[i+1] == (signed char)IAC)
continue;
/* No match for IAC sequence was found */
i += telopt_unknown(d, buf[i+1], buf[i+2],FALSE);
} else
{
d->inbuf[iStart] = buf[i];
iStart++;
}
}
d->inbuf[iStart] = '\0';
return;
}
--------------------------------------------------------------------------
then in init_descriptor add this line just before the return; on the end of it:
init_telnet(dnew);
--------------------------------------------------------------------------
then replace the [STOCK!] read_from_descriptor function with this one, if you
modified your read_from_descriptor in any way, make sure that you apply the
changes to this one:
bool read_from_descriptor( DESCRIPTOR_DATA *d )
{
unsigned int iStart, index;
static char buf[sizeof(d->inbuf)];
memset(buf, 0, sizeof(buf));
/* Hold horses if pending command already. */
if ( d->incomm[0] != '\0' )
return TRUE;
/* Check for overflow. */
iStart = strlen(d->inbuf);
index = 0;
if ( iStart >= sizeof(d->inbuf) - 10 )
{
logf( "%s input overflow!", d->host );
write_to_descriptor( d, "\n\r*** PUT A LID ON IT!!! ***\n\r", 0 );
d->inbuf[sizeof(d->inbuf) - 10] = '\0';
return TRUE;
}
for ( ; ; )
{
int nRead;
nRead = read( d->descriptor, buf + index, sizeof(buf) - 10 - index );
if ( nRead > 0 )
{
index += nRead;
if ( buf[index-1] == '\n' || buf[index-1] == '\r' )
break;
}
else if ( nRead == 0 )
{
logf( "Read_from_descriptor: EOF encountered on read." );
return FALSE;
}
else if ( errno == EWOULDBLOCK )
break;
else
{
perror( "Read_from_descriptor" );
return FALSE;
}
}
/* process_telnet does the actual writing in d->inbuf now! */
process_telnet(d,index,buf);
return TRUE;
}
--------------------------------------------------------------------------
now find this two lines in process_output and delete them
if (IS_SET(ch->comm,COMM_TELNET_GA))
write_to_buffer(d,go_ahead_str,0);
then paste this on the same place:
if (IS_SET(ch->comm, COMM_TELNET_GA))
{
write_to_buffer(d, go_ahead_str, 0);
} else if (IS_SET(ch->comm, COMM_TELNET_EOR))
{
char eor_str[] = { IAC, EOR, '\0' };
write_to_buffer(d, eor_str, 0);
}
--------------------------------------------------------------------------
in nanny in 'case CON_GET_OLD_PASSWORD:' find this:
do_function(ch, &do_help, "motd" );
d->connected = CON_READ_MOTD;
}
and add this line between the '}' bracket and 'break;' below it:
desc_flags(d);
--------------------------------------------------------------------------
that's it for comm.c let's move down to merc.h
--------------------------------------------------------------------------
add this to merc.h:
#define CH(d) ((d)->original ? (d)->original : (d)->character )
/*
* Telnet negotiation flags
*/
#define DESC_TELOPT_EOR (A)
#define DESC_TELOPT_ECHO (B)
#define DESC_TELOPT_NAWS (D)
--------------------------------------------------------------------------
then find struct descriptor_data and add this on the end of it:
unsigned long flags; /* telnet negotiation flags */
unsigned int scr_width; /* screen width */
unsigned int scr_height; /* screen height */
--------------------------------------------------------------------------
add this line to the COMM_ flags:
#define COMM_TELNET_EOR (S) /* End Of Record - from telnet negotiation */
--------------------------------------------------------------------------
now remove the stock telnet.h and replace it with this one:
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)telnet.h 8.2 (Berkeley) 12/15/93
*/
/*
Updated on 19/03/1999 to support current state of Telnet Internet-Drafts
by Jeffrey Altman (The Kermit Project at Columbia University)
jaltman@columbia.edu
*/
#ifndef _TELNET_H_
#define _TELNET_H_
/*
* Definitions for the TELNET protocol.
*/
#define IAC 255 /* interpret as command: */
#define DONT 254 /* you are not to use option */
#define DO 253 /* please, you use option */
#define WONT 252 /* I won't use option */
#define WILL 251 /* I will use option */
#define SB 250 /* interpret as subnegotiation */
#define GA 249 /* you may reverse the line */
#define EL 248 /* erase the current line */
#define EC 247 /* erase the current character */
#define AYT 246 /* are you there */
#define AO 245 /* abort output--but let prog finish */
#define IP 244 /* interrupt process--permanently */
#define BREAK 243 /* break */
#define DM 242 /* data mark--for connect. cleaning */
#define NOP 241 /* nop */
#define SE 240 /* end sub negotiation */
#define EOR 239 /* end of record (transparent mode) */
#define ABORT 238 /* Abort process */
#define SUSP 237 /* Suspend process */
#define xEOF 236 /* End of file: EOF is already used... */
#define SYNCH 242 /* for telfunc calls */
#ifdef TELCMDS
char *telcmds[] = { "EOF", "SUSP", "ABORT", "EOR", "SE", "NOP", "DMARK",
"BRK", "IP", "AO", "AYT", "EC", "EL", "GA", "SB", "WILL",
"WONT", "DO", "DONT", "IAC", 0
};
#else
extern char *telcmds[];
#endif
#define TELCMD_FIRST xEOF
#define TELCMD_LAST IAC
#define TELCMD_OK(x) ((unsigned int)(x) <= TELCMD_LAST && \
(unsigned int)(x) >= TELCMD_FIRST)
#define TELCMD(x) telcmds[(x)-TELCMD_FIRST]
/* telnet options */
#define TELOPT_BINARY 0 /* 8-bit data path */
#define TELOPT_ECHO 1 /* echo */
#define TELOPT_RCP 2 /* prepare to reconnect */
#define TELOPT_SGA 3 /* suppress go ahead */
#define TELOPT_NAMS 4 /* approximate message size */
#define TELOPT_STATUS 5 /* give status */
#define TELOPT_TM 6 /* timing mark */
#define TELOPT_RCTE 7 /* remote controlled transmission and echo */
#define TELOPT_NAOL 8 /* negotiate about output line width */
#define TELOPT_NAOP 9 /* negotiate about output page size */
#define TELOPT_NAOCRD 10 /* negotiate about CR disposition */
#define TELOPT_NAOHTS 11 /* negotiate about horizontal tabstops */
#define TELOPT_NAOHTD 12 /* negotiate about horizontal tab disposition */
#define TELOPT_NAOFFD 13 /* negotiate about formfeed disposition */
#define TELOPT_NAOVTS 14 /* negotiate about vertical tab stops */
#define TELOPT_NAOVTD 15 /* negotiate about vertical tab disposition */
#define TELOPT_NAOLFD 16 /* negotiate about output LF disposition */
#define TELOPT_XASCII 17 /* extended ascic character set */
#define TELOPT_LOGOUT 18 /* force logout */
#define TELOPT_BM 19 /* byte macro */
#define TELOPT_DET 20 /* data entry terminal */
#define TELOPT_SUPDUP 21 /* supdup protocol */
#define TELOPT_SUPDUPOUTPUT 22 /* supdup output */
#define TELOPT_SNDLOC 23 /* send location */
#define TELOPT_TTYPE 24 /* terminal type */
#define TELOPT_EOR 25 /* end or record */
#define TELOPT_TUID 26 /* TACACS user identification */
#define TELOPT_OUTMRK 27 /* output marking */
#define TELOPT_TTYLOC 28 /* terminal location number */
#define TELOPT_3270REGIME 29 /* 3270 regime */
#define TELOPT_X3PAD 30 /* X.3 PAD */
#define TELOPT_NAWS 31 /* window size */
#define TELOPT_TSPEED 32 /* terminal speed */
#define TELOPT_LFLOW 33 /* remote flow control */
#define TELOPT_LINEMODE 34 /* Linemode option */
#define TELOPT_XDISPLOC 35 /* X Display Location */
#define TELOPT_OLD_ENVIRON 36 /* Old - Environment variables */
#define TELOPT_AUTHENTICATION 37 /* Authenticate */
#define TELOPT_ENCRYPT 38 /* Encryption option */
#define TELOPT_NEW_ENVIRON 39 /* New - Environment variables */
#define TELOPT_3270E 40 /* 3270 Extended (RFC 1647) */
#define TELOPT_XAUTH 41 /* ??? (Earhart) */
#define TELOPT_CHARSET 42 /* Character-set (RFC 2066) */
#define TELOPT_RSP 43 /* Remote Serial Port (Barnes) */
#define TELOPT_COM_PORT 44 /* Com Port Control (RFC 2217) */
#define TELOPT_SLE 45 /* Suppress Local Echo (Atmar) - rejected */
#define TELOPT_START_TLS 46 /* Start TLS Authentication/Encryption */
#define TELOPT_KERMIT 47 /* Kermit (altman) */
#define TELOPT_SEND_URL 48 /* Send URL */
#define TELOPT_COMPRESS 85 /* MCP (version 1) */
#define TELOPT_COMPRESS2 86 /* MCP (version 2) */
#define TELOPT_PRAGMA_LOGON 138 /* Encrypted Logon option (PragmaSys) */
#define TELOPT_SSPI_LOGON 139 /* MS SSPI Logon option (PragmaSys) */
#define TELOPT_PRAGMA_HEARTBEAT 140 /* Server Heartbeat option (PragmaSys) */
#define TELOPT_IBM_SAK 200 /* IBM Secure Attention Key (not registered)*/
#define TELOPT_EXOPL 255 /* extended-options-list */
#define NTELOPTS (1+TELOPT_SEND_URL) /* ignore knowledge of non-seq opts */
#ifdef TELOPTS
char *telopts[NTELOPTS+1] = {
"BINARY", "ECHO", "RCP", "SUPPRESS GO AHEAD", "NAME",
"STATUS", "TIMING MARK", "RCTE", "NAOL", "NAOP",
"NAOCRD", "NAOHTS", "NAOHTD", "NAOFFD", "NAOVTS",
"NAOVTD", "NAOLFD", "EXTEND ASCII", "LOGOUT", "BYTE MACRO",
"DATA ENTRY TERMINAL", "SUPDUP", "SUPDUP OUTPUT",
"SEND LOCATION", "TERMINAL TYPE", "END OF RECORD",
"TACACS UID", "OUTPUT MARKING", "TTYLOC",
"3270 REGIME", "X.3 PAD", "NAWS", "TSPEED", "LFLOW",
"LINEMODE", "XDISPLOC", "OLD-ENVIRON", "AUTHENTICATION",
"ENCRYPT", "NEW-ENVIRON","TN3270E","XAUTH","CHARSET",
"REMOTE-SERIAL-PORT","COM-PORT-CONTROL","SUPPRESS-LOCAL-ECHO",
"START-TLS","KERMIT","SEND-URL",
0,
};
#define TELOPT_FIRST TELOPT_BINARY
#define TELOPT_LAST TELOPT_SEND_URL
#define TELOPT_OK(x) ((unsigned int)(x) <= TELOPT_LAST)
#define TELOPT(x) telopts[(x)-TELOPT_FIRST]
#endif
/* sub-option qualifiers */
#define TELQUAL_IS 0 /* option is... */
#define TELQUAL_SEND 1 /* send option */
#define TELQUAL_INFO 2 /* ENVIRON: informational version of IS */
#define TELQUAL_REPLY 2 /* AUTHENTICATION: client version of IS */
#define TELQUAL_NAME 3 /* AUTHENTICATION: client version of IS */
#define LFLOW_OFF 0 /* Disable remote flow control */
#define LFLOW_ON 1 /* Enable remote flow control */
#define LFLOW_RESTART_ANY 2 /* Restart output on any char */
#define LFLOW_RESTART_XON 3 /* Restart output only on XON */
/*
* LINEMODE suboptions
*/
#define LM_MODE 1
#define LM_FORWARDMASK 2
#define LM_SLC 3
#define MODE_EDIT 0x01
#define MODE_TRAPSIG 0x02
#define MODE_ACK 0x04
#define MODE_SOFT_TAB 0x08
#define MODE_LIT_ECHO 0x10
#define MODE_MASK 0x1f
/* Not part of protocol, but needed to simplify things... */
#define MODE_FLOW 0x0100
#define MODE_ECHO 0x0200
#define MODE_INBIN 0x0400
#define MODE_OUTBIN 0x0800
#define MODE_FORCE 0x1000
#define SLC_SYNCH 1
#define SLC_BRK 2
#define SLC_IP 3
#define SLC_AO 4
#define SLC_AYT 5
#define SLC_EOR 6
#define SLC_ABORT 7
#define SLC_EOF 8
#define SLC_SUSP 9
#define SLC_EC 10
#define SLC_EL 11
#define SLC_EW 12
#define SLC_RP 13
#define SLC_LNEXT 14
#define SLC_XON 15
#define SLC_XOFF 16
#define SLC_FORW1 17
#define SLC_FORW2 18
#define NSLC 18
/*
* For backwards compatability, we define SLC_NAMES to be the
* list of names if SLC_NAMES is not defined.
*/
#define SLC_NAMELIST "0", "SYNCH", "BRK", "IP", "AO", "AYT", "EOR", \
"ABORT", "EOF", "SUSP", "EC", "EL", "EW", "RP", \
"LNEXT", "XON", "XOFF", "FORW1", "FORW2", 0,
#ifdef SLC_NAMES
char *slc_names[] = {
SLC_NAMELIST
};
#else
extern char *slc_names[];
#define SLC_NAMES SLC_NAMELIST
#endif
#define SLC_NAME_OK(x) ((unsigned int)(x) <= NSLC)
#define SLC_NAME(x) slc_names[x]
#define SLC_NOSUPPORT 0
#define SLC_CANTCHANGE 1
#define SLC_VARIABLE 2
#define SLC_DEFAULT 3
#define SLC_LEVELBITS 0x03
#define SLC_FUNC 0
#define SLC_FLAGS 1
#define SLC_VALUE 2
#define SLC_ACK 0x80
#define SLC_FLUSHIN 0x40
#define SLC_FLUSHOUT 0x20
#define OLD_ENV_VAR 1
#define OLD_ENV_VALUE 0
#define NEW_ENV_VAR 0
#define NEW_ENV_VALUE 1
#define ENV_ESC 2
#define ENV_USERVAR 3
/*
* AUTHENTICATION suboptions
*/
/*
* Who is authenticating who ...
*/
#define AUTH_WHO_CLIENT 0 /* Client authenticating server */
#define AUTH_WHO_SERVER 1 /* Server authenticating client */
#define AUTH_WHO_MASK 1
/*
* amount of authentication done
*/
#define AUTH_HOW_ONE_WAY 0
#define AUTH_HOW_MUTUAL 2
#define AUTH_HOW_MASK 2
/*
* should we be encrypting?
*/
#define AUTH_ENCRYPT_OFF 0
#define AUTH_ENCRYPT_USING_TELOPT 4
#define AUTH_ENCRYPT_ON AUTH_ENCRYPT_USING_TELOPT
#define AUTH_ENCRYPT_AFTER_EXCHANGE 16
#define AUTH_ENCRYPT_RESERVED 20
#define AUTH_ENCRYPT_MASK 20
/*
* will we be forwarding?
*/
#define INI_CRED_FWD_OFF 0
#define INI_CRED_FWD_ON 8
#define INI_CRED_FWD_MASK 8
#define AUTHTYPE_NULL 0
#define AUTHTYPE_KERBEROS_V4 1
#define AUTHTYPE_KERBEROS_V5 2
#define AUTHTYPE_SPX 3
#define AUTHTYPE_MINK 4
#define AUTHTYPE_SRP 5
#define AUTHTYPE_RSA 6
#define AUTHTYPE_SSL 7
#define AUTHTYPE_LOKI 10
#define AUTHTYPE_SSA 11
#define AUTHTYPE_KEA_SJ 12
#define AUTHTYPE_KEA_INTEG 13
#define AUTHTYPE_DSS 14
#define AUTHTYPE_NTLM 15
#define AUTHTYPE_CNT 16
#define AUTHTYPE_TEST 99
#ifdef AUTH_NAMES
char *authtype_names[] = {
"NULL", /* RFC 1409 */
"KERBEROS_V4", /* RFC 1409 */
"KERBEROS_V5", /* RFC 1409 */
"SPX", /* RFC 1409 */
"MINK/unassigned_4",
"SRP", /* Wu */
"RSA", /* RFC 1409 */
"SSL", /* tjh/not assigned by IANA */
"IANA_8",
"IANA_9", /* Microsoft/not assigned by IANA */
"LOKI", /* RFC 1409 */
"SSA", /* Schoch */
"KEA_SJ",
"KEA_SJ_INTEG",
"DSS",
"NTLM", /* Kahn <louisk@microsoft.com> */
0
};
#else
extern char *authtype_names[];
#endif
#define AUTHTYPE_NAME_OK(x) ((unsigned int)(x) < AUTHTYPE_CNT)
#define AUTHTYPE_NAME(x) authtype_names[x]
/*
* ENCRYPTion suboptions
*/
#define ENCRYPT_IS 0 /* I pick encryption type ... */
#define ENCRYPT_SUPPORT 1 /* I support encryption types ... */
#define ENCRYPT_REPLY 2 /* Initial setup response */
#define ENCRYPT_START 3 /* Am starting to send encrypted */
#define ENCRYPT_END 4 /* Am ending encrypted */
#define ENCRYPT_REQSTART 5 /* Request you start encrypting */
#define ENCRYPT_REQEND 6 /* Request you send encrypting */
#define ENCRYPT_ENC_KEYID 7
#define ENCRYPT_DEC_KEYID 8
#define ENCRYPT_CNT 9
#define ENCTYPE_ANY 0
#define ENCTYPE_DES_CFB64 1
#define ENCTYPE_DES_OFB64 2
#define ENCTYPE_DES3_CFB64 3
#define ENCTYPE_DES3_OFB64 4
#define ENCTYPE_CAST5_40_CFB64 8
#define ENCTYPE_CAST5_40_OFB64 9
#define ENCTYPE_CAST128_CFB64 10
#define ENCTYPE_CAST128_OFB64 11
#define ENCTYPE_CNT 12
#ifdef ENCRYPT_NAMES
char *encrypt_names[] = {
"IS", "SUPPORT", "REPLY", "START", "END",
"REQUEST-START", "REQUEST-END", "ENC-KEYID", "DEC-KEYID",
0,
};
char *enctype_names[] = {
"ANY", "DES_CFB64", "DES_OFB64", "DES3_CFB64", "DES3_OFB64",
"UNKNOWN", "UNKNOWN", "UNKNOWN", "CAST5_40_CFB64", "CAST5_40_OFB64",
"CAST128_CFB64", "CAST128_OFB64", 0,
};
#else
extern char *encrypt_names[];
extern char *enctype_names[];
#endif
#define ENCRYPT_NAME_OK(x) ((unsigned int)(x) < ENCRYPT_CNT)
#define ENCRYPT_NAME(x) encrypt_names[x]
#define ENCTYPE_NAME_OK(x) ((unsigned int)(x) < ENCTYPE_CNT)
#define ENCTYPE_NAME(x) enctype_names[x]
#endif /* !_TELNET_H_ */
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and that's all folks! :) don't forget to do a clean recompile :)