1 /* $NetBSD: externs.h,v 1.44 2018/12/14 23:40:17 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1990, 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: @(#)externs.h 8.3 (Berkeley) 5/30/95 32 */ 33 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <setjmp.h> 37 #include <sys/ioctl.h> 38 #include <errno.h> 39 #include <sys/termios.h> 40 41 #include <string.h> 42 43 #if defined(IPSEC) 44 #include <netipsec/ipsec.h> 45 #if defined(IPSEC_POLICY_IPSEC) 46 extern char *ipsec_policy_in; 47 extern char *ipsec_policy_out; 48 #endif 49 #endif 50 51 #ifndef _POSIX_VDISABLE 52 # ifdef sun 53 # include <sys/param.h> /* pick up VDISABLE definition, mayby */ 54 # endif 55 # ifdef VDISABLE 56 # define _POSIX_VDISABLE VDISABLE 57 # else 58 # define _POSIX_VDISABLE ((cc_t)'\377') 59 # endif 60 #endif 61 62 #define SUBBUFSIZE 256 63 64 #include <sys/cdefs.h> 65 66 extern int 67 autologin, /* Autologin enabled */ 68 skiprc, /* Don't process the ~/.telnetrc file */ 69 eight, /* use eight bit mode (binary in and/or out */ 70 family, /* address family of peer */ 71 flushout, /* flush output */ 72 connected, /* Are we connected to the other side? */ 73 globalmode, /* Mode tty should be in */ 74 telnetport, /* Are we connected to the telnet port? */ 75 localflow, /* Flow control handled locally */ 76 restartany, /* If flow control, restart output on any character */ 77 localchars, /* we recognize interrupt/quit */ 78 donelclchars, /* the user has set "localchars" */ 79 showoptions, 80 net, /* Network file descriptor */ 81 tin, /* Terminal input file descriptor */ 82 tout, /* Terminal output file descriptor */ 83 crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ 84 autoflush, /* flush output when interrupting? */ 85 autosynch, /* send interrupt characters with SYNCH? */ 86 SYNCHing, /* Is the stream in telnet SYNCH mode? */ 87 donebinarytoggle, /* the user has put us in binary */ 88 dontlecho, /* do we suppress local echoing right now? */ 89 crmod, 90 netdata, /* Print out network data flow */ 91 prettydump, /* Print "netdata" output in user readable format */ 92 termdata, /* Print out terminal data flow */ 93 telnet_debug, /* Debug level */ 94 doaddrlookup, /* do a reverse address lookup? */ 95 clienteof; /* Client received EOF */ 96 97 extern cc_t escape; /* Escape to command mode */ 98 extern cc_t rlogin; /* Rlogin mode escape character */ 99 #ifdef KLUDGELINEMODE 100 extern cc_t echoc; /* Toggle local echoing */ 101 #endif 102 103 extern char 104 *prompt; /* Prompt for command. */ 105 106 extern char 107 doopt[], 108 dont[], 109 will[], 110 wont[], 111 options[], /* All the little options */ 112 *hostname; /* Who are we connected to? */ 113 114 #ifdef ENCRYPTION 115 extern void (*encrypt_output)(unsigned char *, int); 116 extern int (*decrypt_input)(int); 117 #endif /* ENCRYPTION */ 118 119 /* 120 * We keep track of each side of the option negotiation. 121 */ 122 123 #define MY_STATE_WILL 0x01 124 #define MY_WANT_STATE_WILL 0x02 125 #define MY_STATE_DO 0x04 126 #define MY_WANT_STATE_DO 0x08 127 128 /* 129 * Macros to check the current state of things 130 */ 131 132 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 133 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 134 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 135 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 136 137 #define my_state_is_dont(opt) (!my_state_is_do(opt)) 138 #define my_state_is_wont(opt) (!my_state_is_will(opt)) 139 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 140 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 141 142 #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;} 143 #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;} 144 #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;} 145 #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;} 146 147 #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;} 148 #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;} 149 #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;} 150 #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;} 151 152 /* 153 * Make everything symmetrical 154 */ 155 156 #define HIS_STATE_WILL MY_STATE_DO 157 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 158 #define HIS_STATE_DO MY_STATE_WILL 159 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 160 161 #define his_state_is_do my_state_is_will 162 #define his_state_is_will my_state_is_do 163 #define his_want_state_is_do my_want_state_is_will 164 #define his_want_state_is_will my_want_state_is_do 165 166 #define his_state_is_dont my_state_is_wont 167 #define his_state_is_wont my_state_is_dont 168 #define his_want_state_is_dont my_want_state_is_wont 169 #define his_want_state_is_wont my_want_state_is_dont 170 171 #define set_his_state_do set_my_state_will 172 #define set_his_state_will set_my_state_do 173 #define set_his_want_state_do set_my_want_state_will 174 #define set_his_want_state_will set_my_want_state_do 175 176 #define set_his_state_dont set_my_state_wont 177 #define set_his_state_wont set_my_state_dont 178 #define set_his_want_state_dont set_my_want_state_wont 179 #define set_his_want_state_wont set_my_want_state_dont 180 181 182 extern FILE 183 *NetTrace; /* Where debugging output goes */ 184 extern char 185 NetTraceFile[]; /* Name of file where debugging output goes */ 186 187 extern jmp_buf 188 toplevel; /* For error conditions. */ 189 190 191 /* authenc.c */ 192 int telnet_net_write(unsigned char *, int); 193 void net_encrypt(void); 194 int telnet_spin(void); 195 char *telnet_getenv(char *); 196 char *telnet_gets(char *, char *, int, int); 197 198 /* commands.c */ 199 int send_tncmd(void (*)(int, int), const char *, const char *); 200 void _setlist_init(void); 201 void set_escape_char(char *); 202 int set_mode(int); 203 int clear_mode(int); 204 int modehelp(int); 205 int suspend(int, char *[]); 206 int shell(int, char *[]); 207 int quit(int, char *[]); 208 int logout(int, char *[]); 209 int env_cmd(int, char *[]); 210 struct env_lst *env_find(const char *); 211 void env_init(void); 212 struct env_lst *env_define(const char *, char *); 213 struct env_lst *env_undefine(const char *, char *); 214 struct env_lst *env_export(const char *, char *); 215 struct env_lst *env_unexport(const char *, char *); 216 struct env_lst *env_send(const char *, char *); 217 struct env_lst *env_list(const char *, char *); 218 char *env_default(int, int ); 219 char *env_getvalue(const char *); 220 void env_varval(const char *); 221 int auth_cmd(int, char *[]); 222 int ayt_status(void); 223 int encrypt_cmd(int, char *[]); 224 int tn(int, char *[]); 225 void command(int, const char *, int); 226 void cmdrc(const char *, const char *); 227 struct addrinfo; 228 229 /* main.c */ 230 void tninit(void); 231 void usage(void) __dead; 232 233 /* network.c */ 234 void init_network(void); 235 int stilloob(void); 236 void setneturg(void); 237 int netflush(void); 238 239 /* sys_bsd.c */ 240 void init_sys(void); 241 int TerminalWrite(char *, int); 242 int TerminalRead(unsigned char *, int); 243 int TerminalAutoFlush(void); 244 int TerminalSpecialChars(int); 245 void TerminalFlushOutput(void); 246 void TerminalSaveState(void); 247 cc_t *tcval(int); 248 void TerminalDefaultChars(void); 249 void TerminalNewMode(int); 250 void TerminalSpeeds(long *, long *); 251 int TerminalWindowSize(long *, long *); 252 int NetClose(int); 253 void NetSigIO(int, int); 254 void NetSetPgrp(int); 255 void sys_telnet_init(void); 256 int process_rings(int , int , int , int , int , int); 257 258 /* telnet.c */ 259 void init_telnet(void); 260 void send_do(int, int ); 261 void send_dont(int, int ); 262 void send_will(int, int ); 263 void send_wont(int, int ); 264 void willoption(int); 265 void wontoption(int); 266 char **mklist(char *, char *); 267 int is_unique(char *, char **, char **); 268 int setup_term(char *, int, int *); 269 char *gettermname(void); 270 void lm_will(unsigned char *, int); 271 void lm_wont(unsigned char *, int); 272 void lm_do(unsigned char *, int); 273 void lm_dont(unsigned char *, int); 274 void lm_mode(unsigned char *, int, int ); 275 void slc_init(void); 276 void slcstate(void); 277 void slc_mode_export(int); 278 void slc_mode_import(int); 279 void slc_import(int); 280 void slc_export(void); 281 void slc(unsigned char *, int); 282 void slc_check(void); 283 void slc_start_reply(void); 284 void slc_add_reply(unsigned int, unsigned int, cc_t); 285 void slc_end_reply(void); 286 int slc_update(void); 287 void env_opt(unsigned char *, int); 288 void env_opt_start(void); 289 void env_opt_start_info(void); 290 void env_opt_add(unsigned char *); 291 int opt_welldefined(const char *); 292 void env_opt_end(int); 293 int telrcv(void); 294 int rlogin_susp(void); 295 int Scheduler(int); 296 void telnet(const char *); 297 void xmitAO(void); 298 void xmitEL(void); 299 void xmitEC(void); 300 int dosynch(const char *); 301 int get_status(const char *); 302 void intp(void); 303 void sendbrk(void); 304 void sendabort(void); 305 void sendsusp(void); 306 void sendeof(void); 307 void sendayt(void); 308 void sendnaws(void); 309 void tel_enter_binary(int); 310 void tel_leave_binary(int); 311 312 /* terminal.c */ 313 void init_terminal(void); 314 int ttyflush(int); 315 int getconnmode(void); 316 void setconnmode(int); 317 void setcommandmode(void); 318 319 /* utilities.c */ 320 void upcase(char *); 321 int SetSockOpt(int, int, int, int); 322 void SetNetTrace(const char *); 323 void Dump(int, unsigned char *, int); 324 void printoption(const char *, int, int ); 325 void optionstatus(void); 326 void printsub(int, unsigned char *, int); 327 void EmptyTerminal(void); 328 void Exit(int) __attribute__((__noreturn__)); 329 void ExitString(const char *, int) __attribute__((__noreturn__)); 330 331 332 extern struct termios new_tc; 333 334 # define termEofChar new_tc.c_cc[VEOF] 335 # define termEraseChar new_tc.c_cc[VERASE] 336 # define termIntChar new_tc.c_cc[VINTR] 337 # define termKillChar new_tc.c_cc[VKILL] 338 # define termQuitChar new_tc.c_cc[VQUIT] 339 340 # define termSuspChar new_tc.c_cc[VSUSP] 341 # define termFlushChar new_tc.c_cc[VDISCARD] 342 # define termWerasChar new_tc.c_cc[VWERASE] 343 # define termRprntChar new_tc.c_cc[VREPRINT] 344 # define termLiteralNextChar new_tc.c_cc[VLNEXT] 345 # define termStartChar new_tc.c_cc[VSTART] 346 # define termStopChar new_tc.c_cc[VSTOP] 347 # define termForw1Char new_tc.c_cc[VEOL] 348 # define termForw2Char new_tc.c_cc[VEOL] 349 # define termAytChar new_tc.c_cc[VSTATUS] 350 351 # define termEofCharp &termEofChar 352 # define termEraseCharp &termEraseChar 353 # define termIntCharp &termIntChar 354 # define termKillCharp &termKillChar 355 # define termQuitCharp &termQuitChar 356 # define termSuspCharp &termSuspChar 357 # define termFlushCharp &termFlushChar 358 # define termWerasCharp &termWerasChar 359 # define termRprntCharp &termRprntChar 360 # define termLiteralNextCharp &termLiteralNextChar 361 # define termStartCharp &termStartChar 362 # define termStopCharp &termStopChar 363 # define termForw1Charp &termForw1Char 364 # define termForw2Charp &termForw2Char 365 # define termAytCharp &termAytChar 366
Indexes created Sat Sep 20 22:09:52 GMT 2025