1 /* $OpenBSD: tip.h,v 1.18 2004/05/26 18:17:59 deraadt Exp $ */ 2 /* $NetBSD: tip.h,v 1.7 1997/04/20 00:02:46 mellon Exp $ */ 3 4 /* 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. 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 * @(#)tip.h 8.1 (Berkeley) 6/6/93 34 */ 35 36 /* 37 * tip - terminal interface program 38 */ 39 40 #include <sys/types.h> 41 #include <sys/file.h> 42 #include <sys/time.h> 43 #include <sys/wait.h> 44 #include <sys/ioctl.h> 45 46 #include <termios.h> 47 #include <signal.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <pwd.h> 52 #include <ctype.h> 53 #include <setjmp.h> 54 #include <unistd.h> 55 #include <errno.h> 56 #include <limits.h> 57 58 /* 59 * Remote host attributes 60 */ 61 char *DV; /* UNIX device(s) to open */ 62 char *EL; /* chars marking an EOL */ 63 char *CM; /* initial connection message */ 64 char *IE; /* EOT to expect on input */ 65 char *OE; /* EOT to send to complete FT */ 66 char *CU; /* call unit if making a phone call */ 67 char *AT; /* acu type */ 68 char *PN; /* phone number(s) */ 69 char *DI; /* disconnect string */ 70 char *PA; /* parity to be generated */ 71 72 char *PH; /* phone number file */ 73 char *RM; /* remote file name */ 74 char *HO; /* host name */ 75 76 long BR; /* line speed for conversation */ 77 long FS; /* frame size for transfers */ 78 79 short DU; /* this host is dialed up */ 80 short HW; /* this device is hardwired, see hunt.c */ 81 char *ES; /* escape character */ 82 char *EX; /* exceptions */ 83 char *FO; /* force (literal next) char*/ 84 char *RC; /* raise character */ 85 char *RE; /* script record file */ 86 char *PR; /* remote prompt */ 87 long DL; /* line delay for file transfers to remote */ 88 long CL; /* char delay for file transfers to remote */ 89 long ET; /* echocheck timeout */ 90 short HD; /* this host is half duplex - do local echo */ 91 short DC; /* this host is directly connected. */ 92 93 /* 94 * String value table 95 */ 96 typedef 97 struct { 98 char *v_name; /* whose name is it */ 99 char v_type; /* for interpreting set's */ 100 char v_access; /* protection of touchy ones */ 101 char *v_abrev; /* possible abreviation */ 102 char *v_value; /* casted to a union later */ 103 } 104 value_t; 105 106 #define STRING 01 /* string valued */ 107 #define BOOL 02 /* true-false value */ 108 #define NUMBER 04 /* numeric value */ 109 #define CHAR 010 /* character value */ 110 111 #define WRITE 01 /* write access to variable */ 112 #define READ 02 /* read access */ 113 114 #define CHANGED 01 /* low bit is used to show modification */ 115 #define PUBLIC 1 /* public access rights */ 116 #define PRIVATE 03 /* private to definer */ 117 #define ROOT 05 /* root defined */ 118 119 #define TRUE 1 120 #define FALSE 0 121 122 #define ENVIRON 020 /* initialize out of the environment */ 123 #define IREMOTE 040 /* initialize out of remote structure */ 124 #define INIT 0100 /* static data space used for initialization */ 125 #define TMASK 017 126 127 /* 128 * Definition of ACU line description 129 */ 130 typedef 131 struct { 132 char *acu_name; 133 int (*acu_dialer)(); 134 int (*acu_disconnect)(); 135 int (*acu_abort)(); 136 } 137 acu_t; 138 139 #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */ 140 141 /* 142 * variable manipulation stuff -- 143 * if we defined the value entry in value_t, then we couldn't 144 * initialize it in vars.c, so we cast it as needed to keep lint 145 * happy. 146 */ 147 148 #define value(v) vtable[v].v_value 149 150 #define number(v) ((long)(v)) 151 #define boolean(v) ((short)(long)(v)) 152 #define character(v) ((char)(long)(v)) 153 #define address(v) ((long *)(v)) 154 155 #define setnumber(v,n) do { (v) = (char *)(long)(n); } while (0) 156 #define setboolean(v,n) do { (v) = (char *)(long)(n); } while (0) 157 #define setcharacter(v,n) do { (v) = (char *)(long)(n); } while (0) 158 #define setaddress(v,n) do { (v) = (char *)(n); } while (0) 159 160 /* 161 * Escape command table definitions -- 162 * lookup in this table is performed when ``escapec'' is recognized 163 * at the begining of a line (as defined by the eolmarks variable). 164 */ 165 166 typedef 167 struct { 168 char e_char; /* char to match on */ 169 char e_flags; /* experimental, privileged */ 170 char *e_help; /* help string */ 171 int (*e_func)(); /* command */ 172 } 173 esctable_t; 174 175 #define NORM 00 /* normal protection, execute anyone */ 176 #define EXP 01 /* experimental, mark it with a `*' on help */ 177 #define PRIV 02 /* privileged, root execute only */ 178 179 extern int vflag; /* verbose during reading of .tiprc file */ 180 extern int noesc; /* no escape `~' char */ 181 extern value_t vtable[]; /* variable table */ 182 183 #ifndef ACULOG 184 #define logent(a, b, c, d) 185 #define loginit() 186 #endif 187 188 /* 189 * Definition of indices into variable table so 190 * value(DEFINE) turns into a static address. 191 */ 192 193 #define BEAUTIFY 0 194 #define BAUDRATE 1 195 #define DIALTIMEOUT 2 196 #define EOFREAD 3 197 #define EOFWRITE 4 198 #define EOL 5 199 #define ESCAPE 6 200 #define EXCEPTIONS 7 201 #define FORCE 8 202 #define FRAMESIZE 9 203 #define HOST 10 204 #define LOG 11 205 #define PHONES 12 206 #define PROMPT 13 207 #define RAISE 14 208 #define RAISECHAR 15 209 #define RECORD 16 210 #define REMOTE 17 211 #define SCRIPT 18 212 #define TABEXPAND 19 213 #define VERBOSE 20 214 #define SHELL 21 215 #define HOME 22 216 #define ECHOCHECK 23 217 #define DISCONNECT 24 218 #define TAND 25 219 #define LDELAY 26 220 #define CDELAY 27 221 #define ETIMEOUT 28 222 #define RAWFTP 29 223 #define HALFDUPLEX 30 224 #define LECHO 31 225 #define PARITY 32 226 #define HARDWAREFLOW 33 227 228 #define NOVAL ((value_t *)NULL) 229 #define NOACU ((acu_t *)NULL) 230 #define NOSTR ((char *)NULL) 231 #define NOFILE ((FILE *)NULL) 232 #define NOPWD ((struct passwd *)0) 233 234 struct termios term; /* current mode of terminal */ 235 struct termios defterm; /* initial mode of terminal */ 236 struct termios defchars; /* current mode with initial chars */ 237 int gotdefterm; 238 239 FILE *fscript; /* FILE for scripting */ 240 241 int fildes[2]; /* file transfer synchronization channel */ 242 int repdes[2]; /* read process sychronization channel */ 243 int FD; /* open file descriptor to remote host */ 244 int AC; /* open file descriptor to dialer (v831 only) */ 245 int vflag; /* print .tiprc initialization sequence */ 246 int noesc; /* no `~' escape char */ 247 int sfd; /* for ~< operation */ 248 pid_t tipin_pid; /* pid of tipin */ 249 pid_t tipout_pid; /* pid of tipout */ 250 uid_t uid, euid; /* real and effective user id's */ 251 gid_t gid, egid; /* real and effective group id's */ 252 int stop; /* stop transfer session flag */ 253 int quit; /* same; but on other end */ 254 int intflag; /* recognized interrupt */ 255 int stoprompt; /* for interrupting a prompt session */ 256 int timedout; /* ~> transfer timedout */ 257 int cumode; /* simulating the "cu" program */ 258 int bits8; /* terminal is is 8-bit mode */ 259 #define STRIP_PAR (bits8 ? 0377 : 0177) 260 261 char fname[PATH_MAX]; /* file name buffer for ~< */ 262 char copyname[PATH_MAX]; /* file name buffer for ~> */ 263 char ccc; /* synchronization character */ 264 char ch; /* for tipout */ 265 char *uucplock; /* name of lock file for uucp's */ 266 267 int odisc; /* initial tty line discipline */ 268 extern int disc; /* current tty discpline */ 269 270 extern char *__progname; /* program name */ 271 272 extern char *ctrl(); 273 extern char *vinterp(); 274 extern char *connect(); 275 276 char *sname(char *s); 277 int any(int cc, char *p); 278 int anyof(char *s1, char *s2); 279 int args(char *buf, char *a[], int num); 280 int escape(void); 281 int prompt(char *s, char *p, size_t sz); 282 int size(char *s); 283 int ttysetup(int speed); 284 int uu_lock(char *ttyname); 285 int uu_unlock(char *ttyname); 286 int vstring(char *s, char *v); 287 long hunt(char *name); 288 void cumain(int argc, char *argv[]); 289 void daemon_uid(void); 290 void disconnect(char *reason); 291 void execute(char *s); 292 void hardwareflow(char *option); 293 void logent(char *group, char *num, char *acu, char *message); 294 void loginit(void); 295 void prtime(char *s, time_t a); 296 void parwrite(int fd, char *buf, int n); 297 void raw(void); 298 void send(int c); 299 void setparity(char *defparity); 300 void setscript(void); 301 void shell_uid(void); 302 void tandem(char *option); 303 void tipabort(char *msg); 304 void tipin(void); 305 void tipout(void); 306 void transfer(char *buf, int fd, char *eofchars); 307 void transmit(FILE *fd, char *eofchars, char *command); 308 void unraw(void); 309 void user_uid(void); 310 void vinit(void); 311 void vlex(char *s); 312