libc/include/arpa/telnet.h - platform/bionic - Git at Google

 /*
  * 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.
  * 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
  */

 #ifndef _ARPA_TELNET_H
 #define	_ARPA_TELNET_H 1

 /*
  * 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 ascii 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_EXOPL	255	/* extended-options-list */


 #define	NTELOPTS	(1+TELOPT_NEW_ENVIRON)
 #ifdef TELOPTS
 const 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",
 	0,
 };
 #define	TELOPT_FIRST	TELOPT_BINARY
 #define	TELOPT_LAST	TELOPT_NEW_ENVIRON
 #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 compatibility, 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
 const 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

 #define	AUTHTYPE_NULL		0
 #define	AUTHTYPE_KERBEROS_V4	1
 #define	AUTHTYPE_KERBEROS_V5	2
 #define	AUTHTYPE_SPX		3
 #define	AUTHTYPE_MINK		4
 #define	AUTHTYPE_CNT		5

 #define	AUTHTYPE_TEST		99

 #ifdef	AUTH_NAMES
 const char *authtype_names[] = {
 	"NULL", "KERBEROS_V4", "KERBEROS_V5", "SPX", "MINK", 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_CNT		3

 #ifdef	ENCRYPT_NAMES
 const char *encrypt_names[] = {
 	"IS", "SUPPORT", "REPLY", "START", "END",
 	"REQUEST-START", "REQUEST-END", "ENC-KEYID", "DEC-KEYID",
 	0,
 };
 const char *enctype_names[] = {
 	"ANY", "DES_CFB64",  "DES_OFB64",  0,
 };
 #else
 extern const char *encrypt_names[];
 extern const 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 /* arpa/telnet.h */
	/*
	* 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.
	* 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
	*/

	#ifndef _ARPA_TELNET_H
	#define _ARPA_TELNET_H 1

	/*
	* 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 ascii 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_EXOPL 255 /* extended-options-list */


	#define NTELOPTS (1+TELOPT_NEW_ENVIRON)
	#ifdef TELOPTS
	const 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",
	0,
	};
	#define TELOPT_FIRST TELOPT_BINARY
	#define TELOPT_LAST TELOPT_NEW_ENVIRON
	#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 compatibility, 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
	const 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

	#define AUTHTYPE_NULL 0
	#define AUTHTYPE_KERBEROS_V4 1
	#define AUTHTYPE_KERBEROS_V5 2
	#define AUTHTYPE_SPX 3
	#define AUTHTYPE_MINK 4
	#define AUTHTYPE_CNT 5

	#define AUTHTYPE_TEST 99

	#ifdef AUTH_NAMES
	const char *authtype_names[] = {
	"NULL", "KERBEROS_V4", "KERBEROS_V5", "SPX", "MINK", 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_CNT 3

	#ifdef ENCRYPT_NAMES
	const char *encrypt_names[] = {
	"IS", "SUPPORT", "REPLY", "START", "END",
	"REQUEST-START", "REQUEST-END", "ENC-KEYID", "DEC-KEYID",
	0,
	};
	const char *enctype_names[] = {
	"ANY", "DES_CFB64", "DES_OFB64", 0,
	};
	#else
	extern const char *encrypt_names[];
	extern const 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 /* arpa/telnet.h */