1 /* $NetBSD: ext.h,v 1.22 2012/01/10 23:39:11 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * from: @(#)ext.h 8.2 (Berkeley) 12/15/93 32 */ 33 34 /* 35 * Telnet server variable declarations 36 */ 37 extern char options[256]; 38 extern char do_dont_resp[256]; 39 extern char will_wont_resp[256]; 40 extern int linemode; /* linemode on/off */ 41 #ifdef LINEMODE 42 extern int uselinemode; /* what linemode to use (on/off) */ 43 extern int editmode; /* edit modes in use */ 44 extern int useeditmode; /* edit modes to use */ 45 extern int alwayslinemode; /* command line option */ 46 # ifdef KLUDGELINEMODE 47 extern int lmodetype; /* Client support for linemode */ 48 # endif /* KLUDGELINEMODE */ 49 #endif /* LINEMODE */ 50 extern int flowmode; /* current flow control state */ 51 extern int restartany; /* restart output on any character state */ 52 #ifdef DIAGNOSTICS 53 extern int diagnostic; /* telnet diagnostic capabilities */ 54 #endif /* DIAGNOSTICS */ 55 #ifdef SECURELOGIN 56 extern int require_secure_login; 57 #endif 58 #ifdef AUTHENTICATION 59 extern int auth_level; 60 #endif 61 62 extern slcfun slctab[NSLC + 1]; /* slc mapping table */ 63 extern char terminaltype[41]; 64 65 /* 66 * I/O data buffers, pointers, and counters. 67 */ 68 extern char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp; 69 extern char netibuf[BUFSIZ], *netip; 70 extern char netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp; 71 extern char *neturg; /* one past last bye of urgent data */ 72 extern int pcc, ncc; 73 extern int pty, net; 74 extern char *line; 75 extern int SYNCHing; /* we are in TELNET SYNCH mode */ 76 77 #include <sys/cdefs.h> 78 79 extern void 80 _termstat(void), 81 add_slc(char, char, cc_t), 82 check_slc(void), 83 change_slc(int, int, cc_t), 84 cleanup(int) __dead, 85 clientstat(int, int, int), 86 copy_termbuf(char *, int), 87 deferslc(void), 88 defer_terminit(void), 89 do_opt_slc(unsigned char *, int), 90 doeof(void), 91 dooption(int), 92 dontoption(int), 93 edithost(const char *, const char *), 94 fatal(int, const char *) __dead, 95 fatalperror(int, const char *) __dead, 96 get_slc_defaults(void), 97 init_env(void), 98 init_termbuf(void), 99 interrupt(void), 100 localstat(void), 101 flowstat(void), 102 netclear(void), 103 netflush(void), 104 #ifdef DIAGNOSTICS 105 printoption(const char *, int), 106 printdata(const char *, char *, int), 107 #ifndef ENCRYPTION 108 printsub(int, unsigned char *, int), 109 #endif 110 #endif 111 ptyflush(void), 112 putchr(int), 113 recv_ayt(void), 114 send_do(int, int), 115 send_dont(int, int), 116 send_slc(void), 117 send_status(void), 118 send_will(int, int), 119 send_wont(int, int), 120 sendbrk(void), 121 sendsusp(void), 122 set_termbuf(void), 123 start_login(char *, int, char *) __dead, 124 start_slc(int), 125 startslave(char *, int, char *), 126 suboption(void), 127 telrcv(void), 128 ttloop(void), 129 tty_binaryin(int), 130 tty_binaryout(int); 131 132 extern char * 133 putf(const char *, char *); 134 135 extern int 136 end_slc(unsigned char **), 137 getnpty(void), 138 getpty(int *), 139 spcset(int, cc_t *, cc_t **), 140 stilloob(int), 141 terminit(void), 142 termstat(void), 143 tty_flowmode(void), 144 tty_restartany(void), 145 tty_isbinaryin(void), 146 tty_isbinaryout(void), 147 tty_iscrnl(void), 148 tty_isecho(void), 149 tty_isediting(void), 150 tty_islitecho(void), 151 tty_isnewmap(void), 152 tty_israw(void), 153 tty_issofttab(void), 154 tty_istrapsig(void), 155 tty_linemode(void); 156 157 extern void 158 tty_rspeed(int), 159 tty_setecho(int), 160 tty_setedit(int), 161 tty_setlinemode(int), 162 tty_setlitecho(int), 163 tty_setsig(int), 164 tty_setsofttab(int), 165 tty_tspeed(int), 166 willoption(int), 167 wontoption(int), 168 writenet(unsigned char *, int); 169 170 extern int output_data(const char *, ...) 171 __attribute__((__format__(__printf__, 1, 2))); 172 extern int output_datalen(const char *, size_t); 173 174 #ifdef ENCRYPTION 175 extern char *nclearto; 176 #endif /* ENCRYPTION */ 177 178 /* 179 * The following are some clocks used to decide how to interpret 180 * the relationship between various variables. 181 */ 182 extern struct { 183 int 184 system, /* what the current time is */ 185 echotoggle, /* last time user entered echo character */ 186 modenegotiated, /* last time operating mode negotiated */ 187 didnetreceive, /* last time we read data from network */ 188 ttypesubopt, /* ttype subopt is received */ 189 tspeedsubopt, /* tspeed subopt is received */ 190 environsubopt, /* environ subopt is received */ 191 oenvironsubopt, /* old environ subopt is received */ 192 xdisplocsubopt, /* xdisploc subopt is received */ 193 baseline, /* time started to do timed action */ 194 gotDM; /* when did we last see a data mark */ 195 } clocks; 196 197 #ifndef DEFAULT_IM 198 # define DEFAULT_IM "\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r" 199 #endif 200 201 #ifdef AUTHENTICATION 202 #include <libtelnet/auth.h> 203 #endif 204 205 #ifdef ENCRYPTION 206 #include <libtelnet/encrypt.h> 207 #endif 208