complete rewrite to avoid the BSD license in the previous version

1 files changed, 75 insertions, 295 deletions

diff --git a/lib/arpa_telnet.h b/lib/arpa_telnet.h
index 7c1c3b02b..1f1890fb7 100644
--- a/lib/arpa_telnet.h
+++ b/lib/arpa_telnet.h
@@ -1,321 +1,101 @@
-/*
- * Copyright (c) 1983, 1993
- *	The Regents of the University of California.  All rights reserved.
+#ifndef __ARPA_TELNET_H
+#define __ARPA_TELNET_H
+/*****************************************************************************
+ *                                  _   _ ____  _     
+ *  Project                     ___| | | |  _ \| |    
+ *                             / __| | | | |_) | |    
+ *                            | (__| |_| |  _ <| |___ 
+ *                             \___|\___/|_| \_\_____|
  *
- * 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.
+ * Copyright (C) 2001, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
- * 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.
+ * In order to be useful for every potential user, curl and libcurl are
+ * dual-licensed under the MPL and the MIT/X-derivate licenses.
  *
- *	@(#)telnet.h	8.2 (Berkeley) 12/15/93
- */
-
-#ifndef _ARPA_TELNET_H
-#define _ARPA_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
-static
-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_EXOPL	255	/* extended-options-list */
-
-
-#define	NTELOPTS	(1+TELOPT_NEW_ENVIRON)
-#ifdef TELOPTS
-static
-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 */
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the MPL or the MIT/X-derivate
+ * licenses. You may pick one of these licenses.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * $Id$
+ *****************************************************************************/
 
 /*
- * LINEMODE suboptions
+ * Telnet option defines. Add more here if in need.
  */
+#define TELOPT_BINARY   0  /* binary 8bit data */
+#define TELOPT_SGA      3  /* Supress Go Ahead */
+#define TELOPT_EXOPL  255  /* EXtended OPtions List */
+#define TELOPT_TTYPE   24  /* Terminal TYPE */
+#define TELOPT_XDISPLOC 35 /* X DISPlay LOCation */
 
-#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
+#define TELOPT_NEW_ENVIRON 39  /* NEW ENVIRONment variables */
+#define NEW_ENV_VAR   0
+#define NEW_ENV_VALUE 1
 
 /*
- * For backwards compatability, we define SLC_NAMES to be the
- * list of names if SLC_NAMES is not defined.
+ * The telnet options represented as strings
  */
-#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
+static char *telnetoptions[]=
+{
+  "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",
+  "DE TERMINAL", "SUPDUP",         "SUPDUP OUTPUT", "SEND LOCATION",
+  "TERM TYPE",   "END OF RECORD",  "TACACS UID",    "OUTPUT MARKING",
+  "TTYLOC",      "3270 REGIME",    "X3 PAD",        "NAWS",
+  "TERM SPEED",  "LFLOW",          "LINEMODE",      "XDISPLOC",
+  "OLD-ENVIRON", "AUTHENTICATION", "ENCRYPT",       "NEW-ENVIRON"
 };
-#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 TELOPT_MAXIMUM TELOPT_NEW_ENVIRON
 
-#define	SLC_FUNC	0
-#define	SLC_FLAGS	1
-#define	SLC_VALUE	2
+#define TELOPT_OK(x) ((x) <= TELOPT_MAXIMUM)
+#define TELOPT(x)    telnetoptions[x]
 
-#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
+#define NTELOPTS 40 
 
 /*
- * AUTHENTICATION suboptions
+ * First some defines
  */
+#define xEOF 236 /* End Of File */ 
+#define SE   240 /* Sub negotiation End */
+#define NOP  241 /* No OPeration */
+#define DM   242 /* Data Mark */
+#define GA   249 /* Go Ahead, reverse the line */
+#define SB   250 /* SuBnegotiation */
+#define WILL 251 /* Our side WILL use this option */
+#define WONT 252 /* Our side WON'T use this option */
+#define DO   253 /* DO use this option! */
+#define DONT 254 /* DON'T use this option! */
+#define IAC  255 /* Interpret As Command */
 
 /*
- * Who is authenticating who ...
+ * Then those numbers represented as strings:
  */
-#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
-char *authtype_names[] = {
-	"NULL", "KERBEROS_V4", "KERBEROS_V5", "SPX", "MINK", 0,
+static char *telnetcmds[]=
+{
+  "EOF",  "SUSP",  "ABORT", "EOR",  "SE",
+  "NOP",  "DMARK", "BRK",   "IP",   "AO",
+  "AYT",  "EC",    "EL",    "GA",   "SB",
+  "WILL", "WONT",  "DO",    "DONT", "IAC"
 };
-#else
-extern char *authtype_names[];
-#endif
 
-#define	AUTHTYPE_NAME_OK(x)	((unsigned int)(x) < AUTHTYPE_CNT)
-#define	AUTHTYPE_NAME(x)	authtype_names[x]
+#define TELCMD_MINIMUM xEOF /* the first one */
+#define TELCMD_MAXIMUM  IAC  /* surprise, 255 is the last one! ;-) */
 
-/*
- * 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 TELQUAL_IS   0
+#define TELQUAL_SEND 1
+#define TELQUAL_INFO 2
+#define TELQUAL_NAME 3
 
-#define	ENCTYPE_ANY		0
-#define	ENCTYPE_DES_CFB64	1
-#define	ENCTYPE_DES_OFB64	2
-#define	ENCTYPE_CNT		3
+#define TELCMD_OK(x) ( ((unsigned int)(x) >= TELCMD_MINIMUM) && \
+                       ((unsigned int)(x) <= TELCMD_MAXIMUM) )
+#define TELCMD(x)    telnetcmds[(x)-TELCMD_MINIMUM]
 
-#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",  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 /* _ARPA_TELNET_H */