271 lines
7.7 KiB
C
271 lines
7.7 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)defs.h 8.1 (Berkeley) 6/4/93
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* $FreeBSD$
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*/
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/*
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* Telnet server defines
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#ifndef BSD
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# define BSD 43
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#endif
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#if defined(PRINTOPTIONS) && defined(DIAGNOSTICS)
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#define TELOPTS
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#define TELCMDS
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#define SLC_NAMES
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#endif
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#if defined(SYSV_TERMIO) && !defined(USE_TERMIO)
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# define USE_TERMIO
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#endif
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#include <sys/socket.h>
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#ifndef SHUT_RDWR
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# define SHUT_RDWR 2
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#endif
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#include <sys/wait.h>
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#include <fcntl.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#ifndef FILIO_H
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# if !defined(USE_TERMIO)
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# define USE_OLD_TTY
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# endif
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#include <sys/ioctl.h>
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#else
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#include <sys/filio.h>
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#endif
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#include <netinet/in.h>
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#include "arpa/telnet.h"
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#include <stdio.h>
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#ifdef __STDC__
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#include <stdlib.h>
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#endif
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#include <signal.h>
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#include <errno.h>
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#include <netdb.h>
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#include <syslog.h>
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#ifndef LOG_DAEMON
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#define LOG_DAEMON 0
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#endif
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#ifndef LOG_ODELAY
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#define LOG_ODELAY 0
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#endif
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#include <ctype.h>
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#ifndef NO_STRING_H
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#include <string.h>
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#else
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#include <strings.h>
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#endif
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#ifdef __GNO__
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# include "libtelnet/strlcpy.h"
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# include "libtelnet/vasprintf.h"
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# include "libtelnet/posix_openpt.h"
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#endif
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#ifndef USE_TERMIO
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#include <sgtty.h>
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#else
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# ifdef SYSV_TERMIO
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# include <termio.h>
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# else
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# include <termios.h>
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# endif
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#endif
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#if !defined(USE_TERMIO) || defined(NO_CC_T)
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typedef unsigned char cc_t;
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#endif
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#ifdef __STDC__
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#include <unistd.h>
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#endif
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#ifndef _POSIX_VDISABLE
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# ifdef VDISABLE
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# define _POSIX_VDISABLE VDISABLE
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# else
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# define _POSIX_VDISABLE ((unsigned char)'\377')
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# endif
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#endif
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#if !defined(TIOCSCTTY) && defined(TCSETCTTY)
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# define TIOCSCTTY TCSETCTTY
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#endif
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#ifndef FD_SET
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#ifndef HAVE_fd_set
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typedef struct fd_set { int fds_bits[1]; } fd_set;
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#endif
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#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n)))
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#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n)))
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#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n)))
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#define FD_ZERO(p) ((p)->fds_bits[0] = 0)
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#endif /* FD_SET */
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/*
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* I/O data buffers defines
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*/
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#define NETSLOP 64
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#define NIACCUM(c) { *netip++ = c; \
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ncc++; \
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}
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/* clock manipulations */
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#define settimer(x) (clocks.x = ++clocks.system)
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#define sequenceIs(x,y) (clocks.x < clocks.y)
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/*
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* Linemode support states, in decreasing order of importance
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*/
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#define REAL_LINEMODE 0x04
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#define KLUDGE_OK 0x03
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#define NO_AUTOKLUDGE 0x02
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#define KLUDGE_LINEMODE 0x01
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#define NO_LINEMODE 0x00
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/*
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* Structures of information for each special character function.
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*/
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typedef struct {
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unsigned char flag; /* the flags for this function */
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cc_t val; /* the value of the special character */
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} slcent, *Slcent;
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typedef struct {
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slcent defset; /* the default settings */
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slcent current; /* the current settings */
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cc_t *sptr; /* a pointer to the char in */
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/* system data structures */
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} slcfun, *Slcfun;
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#ifdef DIAGNOSTICS
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/*
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* Diagnostics capabilities
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*/
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#define TD_REPORT 0x01 /* Report operations to client */
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#define TD_EXERCISE 0x02 /* Exercise client's implementation */
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#define TD_NETDATA 0x04 /* Display received data stream */
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#define TD_PTYDATA 0x08 /* Display data passed to pty */
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#define TD_OPTIONS 0x10 /* Report just telnet options */
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#endif /* DIAGNOSTICS */
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/*
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* We keep track of each side of the option negotiation.
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*/
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#define MY_STATE_WILL 0x01
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#define MY_WANT_STATE_WILL 0x02
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#define MY_STATE_DO 0x04
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#define MY_WANT_STATE_DO 0x08
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/*
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* Macros to check the current state of things
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*/
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#define my_state_is_do(opt) (options[opt]&MY_STATE_DO)
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#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL)
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#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO)
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#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL)
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#define my_state_is_dont(opt) (!my_state_is_do(opt))
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#define my_state_is_wont(opt) (!my_state_is_will(opt))
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#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt))
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#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt))
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#define set_my_state_do(opt) (options[opt] |= MY_STATE_DO)
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#define set_my_state_will(opt) (options[opt] |= MY_STATE_WILL)
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#define set_my_want_state_do(opt) (options[opt] |= MY_WANT_STATE_DO)
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#define set_my_want_state_will(opt) (options[opt] |= MY_WANT_STATE_WILL)
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#define set_my_state_dont(opt) (options[opt] &= ~MY_STATE_DO)
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#define set_my_state_wont(opt) (options[opt] &= ~MY_STATE_WILL)
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#define set_my_want_state_dont(opt) (options[opt] &= ~MY_WANT_STATE_DO)
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#define set_my_want_state_wont(opt) (options[opt] &= ~MY_WANT_STATE_WILL)
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/*
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* Tricky code here. What we want to know is if the MY_STATE_WILL
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* and MY_WANT_STATE_WILL bits have the same value. Since the two
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* bits are adjacent, a little arithmatic will show that by adding
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* in the lower bit, the upper bit will be set if the two bits were
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* different, and clear if they were the same.
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*/
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#define my_will_wont_is_changing(opt) \
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((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)
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#define my_do_dont_is_changing(opt) \
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((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)
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/*
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* Make everything symetrical
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*/
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#define HIS_STATE_WILL MY_STATE_DO
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#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO
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#define HIS_STATE_DO MY_STATE_WILL
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#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL
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#define his_state_is_do my_state_is_will
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#define his_state_is_will my_state_is_do
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#define his_want_state_is_do my_want_state_is_will
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#define his_want_state_is_will my_want_state_is_do
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#define his_state_is_dont my_state_is_wont
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#define his_state_is_wont my_state_is_dont
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#define his_want_state_is_dont my_want_state_is_wont
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#define his_want_state_is_wont my_want_state_is_dont
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#define set_his_state_do set_my_state_will
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#define set_his_state_will set_my_state_do
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#define set_his_want_state_do set_my_want_state_will
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#define set_his_want_state_will set_my_want_state_do
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#define set_his_state_dont set_my_state_wont
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#define set_his_state_wont set_my_state_dont
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#define set_his_want_state_dont set_my_want_state_wont
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#define set_his_want_state_wont set_my_want_state_dont
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#define his_will_wont_is_changing my_do_dont_is_changing
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#define his_do_dont_is_changing my_will_wont_is_changing
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