1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)ext.h 8.2 (Berkeley) 12/15/93 30 * $FreeBSD: src/crypto/telnet/telnetd/ext.h,v 1.2.8.4 2002/04/13 10:59:08 markm Exp $ 31 */ 32 33 /* 34 * Telnet server variable declarations 35 */ 36 extern char options[256]; 37 extern char do_dont_resp[256]; 38 extern char will_wont_resp[256]; 39 extern int linemode; /* linemode on/off */ 40 #ifdef LINEMODE 41 extern int uselinemode; /* what linemode to use (on/off) */ 42 extern int editmode; /* edit modes in use */ 43 extern int useeditmode; /* edit modes to use */ 44 extern int alwayslinemode; /* command line option */ 45 extern int lmodetype; /* Client support for linemode */ 46 #endif /* LINEMODE */ 47 extern int flowmode; /* current flow control state */ 48 extern int restartany; /* restart output on any character state */ 49 #ifdef DIAGNOSTICS 50 extern int diagnostic; /* telnet diagnostic capabilities */ 51 #endif /* DIAGNOSTICS */ 52 #ifdef BFTPDAEMON 53 extern int bftpd; /* behave as bftp daemon */ 54 #endif /* BFTPDAEMON */ 55 #ifdef AUTHENTICATION 56 extern int auth_level; 57 #endif 58 59 extern slcfun slctab[NSLC + 1]; /* slc mapping table */ 60 61 #define TERMINAL_TYPE_SIZE 41 /* allocated space for terminaltype */ 62 63 char *terminaltype; 64 65 /* 66 * I/O data buffers, pointers, and counters. 67 */ 68 extern char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp; 69 70 extern char netibuf[BUFSIZ], *netip; 71 72 extern char netobuf[BUFSIZ], *nfrontp, *nbackp; 73 extern char *neturg; /* one past last bye of urgent data */ 74 75 extern int pcc, ncc; 76 77 extern int pty, net; 78 extern char line[16]; 79 extern int SYNCHing; /* we are in TELNET SYNCH mode */ 80 81 extern void 82 _termstat(void), 83 add_slc(char, char, cc_t), 84 check_slc(void), 85 change_slc(char, char, cc_t), 86 cleanup(int) __dead2, 87 clientstat(int, int, int), 88 copy_termbuf(char *, size_t), 89 deferslc(void), 90 defer_terminit(void), 91 do_opt_slc(unsigned char *, int), 92 doeof(void), 93 dooption(int), 94 dontoption(int), 95 edithost(char *, char *), 96 fatal(int, const char *) __dead2, 97 fatalperror(int, const char *) __dead2, 98 get_slc_defaults(void), 99 init_env(void), 100 init_termbuf(void), 101 interrupt(void), 102 localstat(void), 103 flowstat(void), 104 netclear(void), 105 netflush(void), 106 #ifdef DIAGNOSTICS 107 printoption(const char *, int), 108 printdata(const char *, char *, int), 109 printsub(char, unsigned char *, int), 110 #endif 111 process_slc(unsigned char, unsigned char, cc_t), 112 ptyflush(void), 113 putchr(int), 114 putf(char *, char *), 115 recv_ayt(void), 116 send_do(int, int), 117 send_dont(int, int), 118 send_slc(void), 119 send_status(void), 120 send_will(int, int), 121 send_wont(int, int), 122 sendbrk(void), 123 sendsusp(void), 124 set_termbuf(void), 125 start_login(char *, int, char *) __dead2, 126 start_slc(int), 127 #ifdef AUTHENTICATION 128 start_slave(char *), 129 #else 130 start_slave(char *, int, char *), 131 #endif 132 suboption(void), 133 telrcv(void), 134 ttloop(void), 135 tty_binaryin(int), 136 tty_binaryout(int); 137 138 extern int 139 end_slc(unsigned char **), 140 getnpty(void), 141 #ifndef convex 142 getpty(int *), 143 #endif 144 login_tty(int), 145 spcset(int, cc_t *, cc_t **), 146 stilloob(int), 147 terminit(void), 148 termstat(void), 149 tty_flowmode(void), 150 tty_restartany(void), 151 tty_isbinaryin(void), 152 tty_isbinaryout(void), 153 tty_iscrnl(void), 154 tty_isecho(void), 155 tty_isediting(void), 156 tty_islitecho(void), 157 tty_isnewmap(void), 158 tty_israw(void), 159 tty_issofttab(void), 160 tty_istrapsig(void), 161 tty_linemode(void); 162 163 extern void 164 tty_rspeed(int), 165 tty_setecho(int), 166 tty_setedit(int), 167 tty_setlinemode(int), 168 tty_setlitecho(int), 169 tty_setsig(int), 170 tty_setsofttab(int), 171 tty_tspeed(int), 172 willoption(int), 173 wontoption(int); 174 175 int output_data(const char *, ...) __printflike(1, 2); 176 void output_datalen(const char *, int); 177 void startslave(char *, int, char *); 178 179 #ifdef ENCRYPTION 180 extern void (*encrypt_output)(unsigned char *, int); 181 extern int (*decrypt_input)(int); 182 extern char *nclearto; 183 #endif /* ENCRYPTION */ 184 185 186 /* 187 * The following are some clocks used to decide how to interpret 188 * the relationship between various variables. 189 */ 190 191 extern struct { 192 int 193 system, /* what the current time is */ 194 echotoggle, /* last time user entered echo character */ 195 modenegotiated, /* last time operating mode negotiated */ 196 didnetreceive, /* last time we read data from network */ 197 ttypesubopt, /* ttype subopt is received */ 198 tspeedsubopt, /* tspeed subopt is received */ 199 environsubopt, /* environ subopt is received */ 200 oenvironsubopt, /* old environ subopt is received */ 201 xdisplocsubopt, /* xdisploc subopt is received */ 202 baseline, /* time started to do timed action */ 203 gotDM; /* when did we last see a data mark */ 204 } clocks; 205 206 #ifndef DEFAULT_IM 207 # ifdef ultrix 208 # define DEFAULT_IM "\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r" 209 # else 210 # if defined(__DragonFly__) 211 # define DEFAULT_IM "\r\n\r\nDragonFly (%h) (%t)\r\n\r\r\n\r" 212 # elif defined(__FreeBSD__) 213 # define DEFAULT_IM "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r" 214 # else 215 # define DEFAULT_IM "\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r" 216 # endif 217 # endif 218 #endif 219