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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)ext.h 8.2 (Berkeley) 12/15/93 34 * $FreeBSD: src/crypto/telnet/telnetd/ext.h,v 1.2.8.4 2002/04/13 10:59:08 markm Exp $ 35 * $DragonFly: src/crypto/telnet/telnetd/ext.h,v 1.3 2006/01/17 23:50:35 dillon Exp $ 36 */ 37 38 /* 39 * Telnet server variable declarations 40 */ 41 extern char options[256]; 42 extern char do_dont_resp[256]; 43 extern char will_wont_resp[256]; 44 extern int linemode; /* linemode on/off */ 45 #ifdef LINEMODE 46 extern int uselinemode; /* what linemode to use (on/off) */ 47 extern int editmode; /* edit modes in use */ 48 extern int useeditmode; /* edit modes to use */ 49 extern int alwayslinemode; /* command line option */ 50 extern int lmodetype; /* Client support for linemode */ 51 #endif /* LINEMODE */ 52 extern int flowmode; /* current flow control state */ 53 extern int restartany; /* restart output on any character state */ 54 #ifdef DIAGNOSTICS 55 extern int diagnostic; /* telnet diagnostic capabilities */ 56 #endif /* DIAGNOSTICS */ 57 #ifdef BFTPDAEMON 58 extern int bftpd; /* behave as bftp daemon */ 59 #endif /* BFTPDAEMON */ 60 #ifdef AUTHENTICATION 61 extern int auth_level; 62 #endif 63 64 extern slcfun slctab[NSLC + 1]; /* slc mapping table */ 65 66 #define TERMINAL_TYPE_SIZE 41 /* allocated space for terminaltype */ 67 68 char *terminaltype; 69 70 /* 71 * I/O data buffers, pointers, and counters. 72 */ 73 extern char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp; 74 75 extern char netibuf[BUFSIZ], *netip; 76 77 extern char netobuf[BUFSIZ], *nfrontp, *nbackp; 78 extern char *neturg; /* one past last bye of urgent data */ 79 80 extern int pcc, ncc; 81 82 extern int pty, net; 83 extern char line[16]; 84 extern int SYNCHing; /* we are in TELNET SYNCH mode */ 85 86 extern void 87 _termstat(void), 88 add_slc(char, char, cc_t), 89 check_slc(void), 90 change_slc(char, char, cc_t), 91 cleanup(int), 92 clientstat(int, int, int), 93 copy_termbuf(char *, size_t), 94 deferslc(void), 95 defer_terminit(void), 96 do_opt_slc(unsigned char *, int), 97 doeof(void), 98 dooption(int), 99 dontoption(int), 100 edithost(char *, char *), 101 fatal(int, const char *), 102 fatalperror(int, const char *), 103 get_slc_defaults(void), 104 init_env(void), 105 init_termbuf(void), 106 interrupt(void), 107 localstat(void), 108 flowstat(void), 109 netclear(void), 110 netflush(void), 111 #ifdef DIAGNOSTICS 112 printoption(const char *, int), 113 printdata(const char *, char *, int), 114 printsub(char, unsigned char *, int), 115 #endif 116 process_slc(unsigned char, unsigned char, cc_t), 117 ptyflush(void), 118 putchr(int), 119 putf(char *, char *), 120 recv_ayt(void), 121 send_do(int, int), 122 send_dont(int, int), 123 send_slc(void), 124 send_status(void), 125 send_will(int, int), 126 send_wont(int, int), 127 sendbrk(void), 128 sendsusp(void), 129 set_termbuf(void), 130 start_login(char *, int, char *), 131 start_slc(int), 132 #ifdef AUTHENTICATION 133 start_slave(char *), 134 #else 135 start_slave(char *, int, char *), 136 #endif 137 suboption(void), 138 telrcv(void), 139 ttloop(void), 140 tty_binaryin(int), 141 tty_binaryout(int); 142 143 extern int 144 end_slc(unsigned char **), 145 getnpty(void), 146 #ifndef convex 147 getpty(int *), 148 #endif 149 login_tty(int), 150 spcset(int, cc_t *, cc_t **), 151 stilloob(int), 152 terminit(void), 153 termstat(void), 154 tty_flowmode(void), 155 tty_restartany(void), 156 tty_isbinaryin(void), 157 tty_isbinaryout(void), 158 tty_iscrnl(void), 159 tty_isecho(void), 160 tty_isediting(void), 161 tty_islitecho(void), 162 tty_isnewmap(void), 163 tty_israw(void), 164 tty_issofttab(void), 165 tty_istrapsig(void), 166 tty_linemode(void); 167 168 extern void 169 tty_rspeed(int), 170 tty_setecho(int), 171 tty_setedit(int), 172 tty_setlinemode(int), 173 tty_setlitecho(int), 174 tty_setsig(int), 175 tty_setsofttab(int), 176 tty_tspeed(int), 177 willoption(int), 178 wontoption(int); 179 180 int output_data(const char *, ...) __printflike(1, 2); 181 void output_datalen(const char *, int); 182 void startslave(char *, int, char *); 183 184 #ifdef ENCRYPTION 185 extern void (*encrypt_output)(unsigned char *, int); 186 extern int (*decrypt_input)(int); 187 extern char *nclearto; 188 #endif /* ENCRYPTION */ 189 190 191 /* 192 * The following are some clocks used to decide how to interpret 193 * the relationship between various variables. 194 */ 195 196 extern struct { 197 int 198 system, /* what the current time is */ 199 echotoggle, /* last time user entered echo character */ 200 modenegotiated, /* last time operating mode negotiated */ 201 didnetreceive, /* last time we read data from network */ 202 ttypesubopt, /* ttype subopt is received */ 203 tspeedsubopt, /* tspeed subopt is received */ 204 environsubopt, /* environ subopt is received */ 205 oenvironsubopt, /* old environ subopt is received */ 206 xdisplocsubopt, /* xdisploc subopt is received */ 207 baseline, /* time started to do timed action */ 208 gotDM; /* when did we last see a data mark */ 209 } clocks; 210 211 #ifndef DEFAULT_IM 212 # ifdef ultrix 213 # define DEFAULT_IM "\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r" 214 # else 215 # if defined(__DragonFly__) 216 # define DEFAULT_IM "\r\n\r\nDragonFly (%h) (%t)\r\n\r\r\n\r" 217 # elif defined(__FreeBSD__) 218 # define DEFAULT_IM "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r" 219 # else 220 # define DEFAULT_IM "\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r" 221 # endif 222 # endif 223 #endif 224