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Annotation of 43BSDReno/libexec/telnetd/defs.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1989 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted provided
        !             6:  * that: (1) source distributions retain this entire copyright notice and
        !             7:  * comment, and (2) distributions including binaries display the following
        !             8:  * acknowledgement:  ``This product includes software developed by the
        !             9:  * University of California, Berkeley and its contributors'' in the
        !            10:  * documentation or other materials provided with the distribution and in
        !            11:  * all advertising materials mentioning features or use of this software.
        !            12:  * Neither the name of the University nor the names of its contributors may
        !            13:  * be used to endorse or promote products derived from this software without
        !            14:  * specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  *
        !            19:  *     @(#)defs.h      5.8 (Berkeley) 6/28/90
        !            20:  */
        !            21: 
        !            22: /*
        !            23:  * Telnet server defines
        !            24:  */
        !            25: #include <sys/types.h>
        !            26: #include <sys/param.h>
        !            27: 
        !            28: #ifndef        BSD
        !            29: # define       BSD 43
        !            30: #endif
        !            31: 
        !            32: #if    defined(CRAY) && !defined(LINEMODE)
        !            33: # define SYSV_TERMIO
        !            34: # define LINEMODE
        !            35: # define KLUDGELINEMODE
        !            36: # define NO_GETTYTAB
        !            37: # define DIAGNOSTICS
        !            38: # if !defined(UNICOS5)
        !            39: #  define BFTPDAEMON
        !            40: #  define HAS_IP_TOS
        !            41: # endif
        !            42: #endif /* CRAY */
        !            43: #if defined(UNICOS5) && !defined(NO_SETSID)
        !            44: # define NO_SETSID
        !            45: #endif
        !            46: 
        !            47: #if defined(PRINTOPTIONS) && defined(DIAGNOSTICS)
        !            48: #define TELOPTS
        !            49: #define TELCMDS
        !            50: #endif
        !            51: 
        !            52: #if    defined(SYSV_TERMIO) && !defined(USE_TERMIO)
        !            53: # define       USE_TERMIO
        !            54: #endif
        !            55: 
        !            56: #include <sys/socket.h>
        !            57: #ifndef        CRAY
        !            58: #include <sys/wait.h>
        !            59: #endif /* CRAY */
        !            60: #include <sys/file.h>
        !            61: #include <sys/stat.h>
        !            62: #include <sys/time.h>
        !            63: #ifndef        FILIO_H
        !            64: #include <sys/ioctl.h>
        !            65: #else
        !            66: #include <sys/filio.h>
        !            67: #endif
        !            68: 
        !            69: #include <netinet/in.h>
        !            70: 
        !            71: #include <arpa/telnet.h>
        !            72: 
        !            73: #include <stdio.h>
        !            74: #include <signal.h>
        !            75: #include <errno.h>
        !            76: #include <netdb.h>
        !            77: #include <syslog.h>
        !            78: #ifndef        LOG_DAEMON
        !            79: #define        LOG_DAEMON      0
        !            80: #endif
        !            81: #ifndef        LOG_ODELAY
        !            82: #define        LOG_ODELAY      0
        !            83: #endif
        !            84: #include <ctype.h>
        !            85: #ifndef NO_STRING_H
        !            86: #include <string.h>
        !            87: #else
        !            88: #include <strings.h>
        !            89: #endif
        !            90: 
        !            91: #ifndef        USE_TERMIO
        !            92: #include <sgtty.h>
        !            93: #else
        !            94: # ifdef        SYSV_TERMIO
        !            95: # include <termio.h>
        !            96: # else
        !            97: # include <termios.h>
        !            98: # endif
        !            99: #endif
        !           100: #if !defined(USE_TERMIO) || defined(NO_CC_T)
        !           101: typedef unsigned char cc_t;
        !           102: #endif
        !           103: 
        !           104: #ifdef CRAY
        !           105: #include <sys/fcntl.h>
        !           106: # ifdef        CRAY1
        !           107: # include <sys/pty.h>
        !           108: #  ifndef FD_ZERO
        !           109: # include <sys/select.h>
        !           110: #  endif /* FD_ZERO */
        !           111: # endif        /* CRAY1 */
        !           112: 
        !           113: #include <memory.h>
        !           114: #endif /* CRAY */
        !           115: 
        !           116: #if    !defined(TIOCSCTTY) && defined(TCSETCTTY)
        !           117: # define       TIOCSCTTY TCSETCTTY
        !           118: #endif
        !           119: 
        !           120: #ifndef        FD_SET
        !           121: #ifndef        HAVE_fd_set
        !           122: typedef struct fd_set { int fds_bits[1]; } fd_set;
        !           123: #endif
        !           124: 
        !           125: #define        FD_SET(n, p)    ((p)->fds_bits[0] |= (1<<(n)))
        !           126: #define        FD_CLR(n, p)    ((p)->fds_bits[0] &= ~(1<<(n)))
        !           127: #define        FD_ISSET(n, p)  ((p)->fds_bits[0] & (1<<(n)))
        !           128: #define FD_ZERO(p)     ((p)->fds_bits[0] = 0)
        !           129: #endif /* FD_SET */
        !           130: 
        !           131: /*
        !           132:  * I/O data buffers defines
        !           133:  */
        !           134: #define        NETSLOP 64
        !           135: #ifdef CRAY
        !           136: #undef BUFSIZ
        !           137: #define BUFSIZ  2048
        !           138: #endif
        !           139: 
        !           140: #define        NIACCUM(c)      {   *netip++ = c; \
        !           141:                            ncc++; \
        !           142:                        }
        !           143: 
        !           144: /* clock manipulations */
        !           145: #define        settimer(x)     (clocks.x = ++clocks.system)
        !           146: #define        sequenceIs(x,y) (clocks.x < clocks.y)
        !           147: 
        !           148: /*
        !           149:  * Linemode support states, in decreasing order of importance
        !           150:  */
        !           151: #define REAL_LINEMODE  0x02
        !           152: #define KLUDGE_LINEMODE        0x01
        !           153: #define NO_LINEMODE    0x00
        !           154: 
        !           155: /*
        !           156:  * Structures of information for each special character function.
        !           157:  */
        !           158: typedef struct {
        !           159:        unsigned char   flag;           /* the flags for this function */
        !           160:        cc_t            val;            /* the value of the special character */
        !           161: } slcent, *Slcent;
        !           162: 
        !           163: typedef struct {
        !           164:        slcent          defset;         /* the default settings */
        !           165:        slcent          current;        /* the current settings */
        !           166:        cc_t            *sptr;          /* a pointer to the char in */
        !           167:                                        /* system data structures */
        !           168: } slcfun, *Slcfun;
        !           169: 
        !           170: #ifdef DIAGNOSTICS
        !           171: /*
        !           172:  * Diagnostics capabilities
        !           173:  */
        !           174: #define        TD_REPORT       0x01    /* Report operations to client */
        !           175: #define TD_EXERCISE    0x02    /* Exercise client's implementation */
        !           176: #define TD_NETDATA     0x04    /* Display received data stream */
        !           177: #define TD_PTYDATA     0x08    /* Display data passed to pty */
        !           178: #define        TD_OPTIONS      0x10    /* Report just telnet options */
        !           179: #endif /* DIAGNOSTICS */
        !           180: 
        !           181: /*
        !           182:  * We keep track of each side of the option negotiation.
        !           183:  */
        !           184: 
        !           185: #define        MY_STATE_WILL           0x01
        !           186: #define        MY_WANT_STATE_WILL      0x02
        !           187: #define        MY_STATE_DO             0x04
        !           188: #define        MY_WANT_STATE_DO        0x08
        !           189: 
        !           190: /*
        !           191:  * Macros to check the current state of things
        !           192:  */
        !           193: 
        !           194: #define        my_state_is_do(opt)             (options[opt]&MY_STATE_DO)
        !           195: #define        my_state_is_will(opt)           (options[opt]&MY_STATE_WILL)
        !           196: #define my_want_state_is_do(opt)       (options[opt]&MY_WANT_STATE_DO)
        !           197: #define my_want_state_is_will(opt)     (options[opt]&MY_WANT_STATE_WILL)
        !           198: 
        !           199: #define        my_state_is_dont(opt)           (!my_state_is_do(opt))
        !           200: #define        my_state_is_wont(opt)           (!my_state_is_will(opt))
        !           201: #define my_want_state_is_dont(opt)     (!my_want_state_is_do(opt))
        !           202: #define my_want_state_is_wont(opt)     (!my_want_state_is_will(opt))
        !           203: 
        !           204: #define        set_my_state_do(opt)            (options[opt] |= MY_STATE_DO)
        !           205: #define        set_my_state_will(opt)          (options[opt] |= MY_STATE_WILL)
        !           206: #define        set_my_want_state_do(opt)       (options[opt] |= MY_WANT_STATE_DO)
        !           207: #define        set_my_want_state_will(opt)     (options[opt] |= MY_WANT_STATE_WILL)
        !           208: 
        !           209: #define        set_my_state_dont(opt)          (options[opt] &= ~MY_STATE_DO)
        !           210: #define        set_my_state_wont(opt)          (options[opt] &= ~MY_STATE_WILL)
        !           211: #define        set_my_want_state_dont(opt)     (options[opt] &= ~MY_WANT_STATE_DO)
        !           212: #define        set_my_want_state_wont(opt)     (options[opt] &= ~MY_WANT_STATE_WILL)
        !           213: 
        !           214: /*
        !           215:  * Tricky code here.  What we want to know is if the MY_STATE_WILL
        !           216:  * and MY_WANT_STATE_WILL bits have the same value.  Since the two
        !           217:  * bits are adjacent, a little arithmatic will show that by adding
        !           218:  * in the lower bit, the upper bit will be set if the two bits were
        !           219:  * different, and clear if they were the same.
        !           220:  */
        !           221: #define my_will_wont_is_changing(opt) \
        !           222:                        ((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)
        !           223: 
        !           224: #define my_do_dont_is_changing(opt) \
        !           225:                        ((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)
        !           226: 
        !           227: /*
        !           228:  * Make everything symetrical
        !           229:  */
        !           230: 
        !           231: #define        HIS_STATE_WILL                  MY_STATE_DO
        !           232: #define        HIS_WANT_STATE_WILL             MY_WANT_STATE_DO
        !           233: #define HIS_STATE_DO                   MY_STATE_WILL
        !           234: #define HIS_WANT_STATE_DO              MY_WANT_STATE_WILL
        !           235: 
        !           236: #define        his_state_is_do                 my_state_is_will
        !           237: #define        his_state_is_will               my_state_is_do
        !           238: #define his_want_state_is_do           my_want_state_is_will
        !           239: #define his_want_state_is_will         my_want_state_is_do
        !           240: 
        !           241: #define        his_state_is_dont               my_state_is_wont
        !           242: #define        his_state_is_wont               my_state_is_dont
        !           243: #define his_want_state_is_dont         my_want_state_is_wont
        !           244: #define his_want_state_is_wont         my_want_state_is_dont
        !           245: 
        !           246: #define        set_his_state_do                set_my_state_will
        !           247: #define        set_his_state_will              set_my_state_do
        !           248: #define        set_his_want_state_do           set_my_want_state_will
        !           249: #define        set_his_want_state_will         set_my_want_state_do
        !           250: 
        !           251: #define        set_his_state_dont              set_my_state_wont
        !           252: #define        set_his_state_wont              set_my_state_dont
        !           253: #define        set_his_want_state_dont         set_my_want_state_wont
        !           254: #define        set_his_want_state_wont         set_my_want_state_dont
        !           255: 
        !           256: #define his_will_wont_is_changing      my_do_dont_is_changing
        !           257: #define his_do_dont_is_changing                my_will_wont_is_changing

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