externs.h revision 1.28
1 /* $NetBSD: externs.h,v 1.28 2003/07/14 15:56:29 itojun 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: @(#)externs.h 8.3 (Berkeley) 5/30/95 36 */ 37 38 #ifndef BSD 39 # define BSD 43 40 #endif 41 42 /* 43 * ucb stdio.h defines BSD as something weird 44 */ 45 #if defined(sun) && defined(__svr4__) && !defined(BSD) 46 #define BSD 43 47 #endif 48 49 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <setjmp.h> 53 #include <sys/ioctl.h> 54 #include <errno.h> 55 #include <sys/termios.h> 56 57 #include <string.h> 58 59 #if defined(IPSEC) 60 #include <netinet6/ipsec.h> 61 #if defined(IPSEC_POLICY_IPSEC) 62 extern char *ipsec_policy_in; 63 extern char *ipsec_policy_out; 64 #endif 65 #endif 66 67 #ifndef _POSIX_VDISABLE 68 # ifdef sun 69 # include <sys/param.h> /* pick up VDISABLE definition, mayby */ 70 # endif 71 # ifdef VDISABLE 72 # define _POSIX_VDISABLE VDISABLE 73 # else 74 # define _POSIX_VDISABLE ((cc_t)'\377') 75 # endif 76 #endif 77 78 #define SUBBUFSIZE 256 79 80 #include <sys/cdefs.h> 81 82 extern int 83 autologin, /* Autologin enabled */ 84 skiprc, /* Don't process the ~/.telnetrc file */ 85 eight, /* use eight bit mode (binary in and/or out */ 86 family, /* address family of peer */ 87 flushout, /* flush output */ 88 connected, /* Are we connected to the other side? */ 89 globalmode, /* Mode tty should be in */ 90 In3270, /* Are we in 3270 mode? */ 91 telnetport, /* Are we connected to the telnet port? */ 92 localflow, /* Flow control handled locally */ 93 restartany, /* If flow control, restart output on any character */ 94 localchars, /* we recognize interrupt/quit */ 95 donelclchars, /* the user has set "localchars" */ 96 showoptions, 97 net, /* Network file descriptor */ 98 tin, /* Terminal input file descriptor */ 99 tout, /* Terminal output file descriptor */ 100 crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ 101 autoflush, /* flush output when interrupting? */ 102 autosynch, /* send interrupt characters with SYNCH? */ 103 SYNCHing, /* Is the stream in telnet SYNCH mode? */ 104 donebinarytoggle, /* the user has put us in binary */ 105 dontlecho, /* do we suppress local echoing right now? */ 106 crmod, 107 netdata, /* Print out network data flow */ 108 prettydump, /* Print "netdata" output in user readable format */ 109 #ifdef TN3270 110 cursesdata, /* Print out curses data flow */ 111 apitrace, /* Trace API transactions */ 112 #endif /* defined(TN3270) */ 113 termdata, /* Print out terminal data flow */ 114 debug, /* Debug level */ 115 doaddrlookup, /* do a reverse address lookup? */ 116 clienteof; /* Client received EOF */ 117 118 extern cc_t escape; /* Escape to command mode */ 119 extern cc_t rlogin; /* Rlogin mode escape character */ 120 #ifdef KLUDGELINEMODE 121 extern cc_t echoc; /* Toggle local echoing */ 122 #endif 123 124 extern char 125 *prompt; /* Prompt for command. */ 126 127 extern char 128 doopt[], 129 dont[], 130 will[], 131 wont[], 132 options[], /* All the little options */ 133 *hostname; /* Who are we connected to? */ 134 135 #ifdef ENCRYPTION 136 extern void (*encrypt_output)(unsigned char *, int); 137 extern int (*decrypt_input)(int); 138 #endif /* ENCRYPTION */ 139 140 /* 141 * We keep track of each side of the option negotiation. 142 */ 143 144 #define MY_STATE_WILL 0x01 145 #define MY_WANT_STATE_WILL 0x02 146 #define MY_STATE_DO 0x04 147 #define MY_WANT_STATE_DO 0x08 148 149 /* 150 * Macros to check the current state of things 151 */ 152 153 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 154 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 155 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 156 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 157 158 #define my_state_is_dont(opt) (!my_state_is_do(opt)) 159 #define my_state_is_wont(opt) (!my_state_is_will(opt)) 160 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 161 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 162 163 #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;} 164 #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;} 165 #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;} 166 #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;} 167 168 #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;} 169 #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;} 170 #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;} 171 #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;} 172 173 /* 174 * Make everything symmetrical 175 */ 176 177 #define HIS_STATE_WILL MY_STATE_DO 178 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 179 #define HIS_STATE_DO MY_STATE_WILL 180 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 181 182 #define his_state_is_do my_state_is_will 183 #define his_state_is_will my_state_is_do 184 #define his_want_state_is_do my_want_state_is_will 185 #define his_want_state_is_will my_want_state_is_do 186 187 #define his_state_is_dont my_state_is_wont 188 #define his_state_is_wont my_state_is_dont 189 #define his_want_state_is_dont my_want_state_is_wont 190 #define his_want_state_is_wont my_want_state_is_dont 191 192 #define set_his_state_do set_my_state_will 193 #define set_his_state_will set_my_state_do 194 #define set_his_want_state_do set_my_want_state_will 195 #define set_his_want_state_will set_my_want_state_do 196 197 #define set_his_state_dont set_my_state_wont 198 #define set_his_state_wont set_my_state_dont 199 #define set_his_want_state_dont set_my_want_state_wont 200 #define set_his_want_state_wont set_my_want_state_dont 201 202 203 extern FILE 204 *NetTrace; /* Where debugging output goes */ 205 extern char 206 NetTraceFile[]; /* Name of file where debugging output goes */ 207 208 extern jmp_buf 209 peerdied, 210 toplevel; /* For error conditions. */ 211 212 213 /* authenc.c */ 214 int telnet_net_write(unsigned char *, int); 215 void net_encrypt(void); 216 int telnet_spin(void); 217 char *telnet_getenv(char *); 218 char *telnet_gets(char *, char *, int, int); 219 220 /* commands.c */ 221 int send_tncmd(void (*)(int, int), char *, char *); 222 void _setlist_init(void); 223 void set_escape_char(char *); 224 int set_mode(int); 225 int clear_mode(int); 226 int modehelp(int); 227 int suspend(int, char *[]); 228 int shell(int, char *[]); 229 int quit(int, char *[]); 230 int logout(int, char *[]); 231 int env_cmd(int, char *[]); 232 struct env_lst *env_find(unsigned char *); 233 void env_init(void); 234 struct env_lst *env_define(unsigned char *, unsigned char *); 235 struct env_lst *env_undefine(unsigned char *, unsigned char *); 236 struct env_lst *env_export(unsigned char *, unsigned char *); 237 struct env_lst *env_unexport(unsigned char *, unsigned char *); 238 struct env_lst *env_send(unsigned char *, unsigned char *); 239 struct env_lst *env_list(unsigned char *, unsigned char *); 240 unsigned char *env_default(int, int ); 241 unsigned char *env_getvalue(unsigned char *); 242 void env_varval(unsigned char *); 243 int auth_cmd(int, char *[]); 244 int ayt_status(void); 245 int encrypt_cmd(int, char *[]); 246 int tn(int, char *[]); 247 void command(int, char *, int); 248 void cmdrc(const char *, const char *); 249 struct addrinfo; 250 int sourceroute(struct addrinfo *, char *, char **, int *, int*); 251 252 /* main.c */ 253 void tninit(void); 254 void usage(void); 255 256 /* network.c */ 257 void init_network(void); 258 int stilloob(void); 259 void setneturg(void); 260 int netflush(void); 261 262 /* sys_bsd.c */ 263 void init_sys(void); 264 int TerminalWrite(char *, int); 265 int TerminalRead(unsigned char *, int); 266 int TerminalAutoFlush(void); 267 int TerminalSpecialChars(int); 268 void TerminalFlushOutput(void); 269 void TerminalSaveState(void); 270 cc_t *tcval(int); 271 void TerminalDefaultChars(void); 272 void TerminalRestoreState(void); 273 void TerminalNewMode(int); 274 void TerminalSpeeds(long *, long *); 275 int TerminalWindowSize(long *, long *); 276 int NetClose(int); 277 void NetNonblockingIO(int, int); 278 void NetSigIO(int, int); 279 void NetSetPgrp(int); 280 void sys_telnet_init(void); 281 int process_rings(int , int , int , int , int , int); 282 283 /* telnet.c */ 284 void init_telnet(void); 285 void send_do(int, int ); 286 void send_dont(int, int ); 287 void send_will(int, int ); 288 void send_wont(int, int ); 289 void willoption(int); 290 void wontoption(int); 291 char **mklist(char *, char *); 292 int is_unique(char *, char **, char **); 293 int setup_term(char *, int, int *); 294 char *gettermname(void); 295 void lm_will(unsigned char *, int); 296 void lm_wont(unsigned char *, int); 297 void lm_do(unsigned char *, int); 298 void lm_dont(unsigned char *, int); 299 void lm_mode(unsigned char *, int, int ); 300 void slc_init(void); 301 void slcstate(void); 302 void slc_mode_export(int); 303 void slc_mode_import(int); 304 void slc_import(int); 305 void slc_export(void); 306 void slc(unsigned char *, int); 307 void slc_check(void); 308 void slc_start_reply(void); 309 void slc_add_reply(unsigned int, unsigned int, cc_t); 310 void slc_end_reply(void); 311 int slc_update(void); 312 void env_opt(unsigned char *, int); 313 void env_opt_start(void); 314 void env_opt_start_info(void); 315 void env_opt_add(unsigned char *); 316 int opt_welldefined(char *); 317 void env_opt_end(int); 318 int telrcv(void); 319 int rlogin_susp(void); 320 int Scheduler(int); 321 void telnet(const char *); 322 void xmitAO(void); 323 void xmitEL(void); 324 void xmitEC(void); 325 int dosynch(char *); 326 int get_status(char *); 327 void intp(void); 328 void sendbrk(void); 329 void sendabort(void); 330 void sendsusp(void); 331 void sendeof(void); 332 void sendayt(void); 333 void sendnaws(void); 334 void tel_enter_binary(int); 335 void tel_leave_binary(int); 336 337 /* terminal.c */ 338 void init_terminal(void); 339 int ttyflush(int); 340 int getconnmode(void); 341 void setconnmode(int); 342 void setcommandmode(void); 343 344 /* utilities.c */ 345 void upcase(char *); 346 int SetSockOpt(int, int, int, int); 347 void SetNetTrace(char *); 348 void Dump(int, unsigned char *, int); 349 void printoption(char *, int, int ); 350 void optionstatus(void); 351 void printsub(int, unsigned char *, int); 352 void EmptyTerminal(void); 353 void SetForExit(void); 354 void Exit(int) __attribute__((__noreturn__)); 355 void ExitString(char *, int) __attribute__((__noreturn__)); 356 357 358 extern struct termios new_tc; 359 360 # define termEofChar new_tc.c_cc[VEOF] 361 # define termEraseChar new_tc.c_cc[VERASE] 362 # define termIntChar new_tc.c_cc[VINTR] 363 # define termKillChar new_tc.c_cc[VKILL] 364 # define termQuitChar new_tc.c_cc[VQUIT] 365 366 # define termSuspChar new_tc.c_cc[VSUSP] 367 # define termFlushChar new_tc.c_cc[VDISCARD] 368 # define termWerasChar new_tc.c_cc[VWERASE] 369 # define termRprntChar new_tc.c_cc[VREPRINT] 370 # define termLiteralNextChar new_tc.c_cc[VLNEXT] 371 # define termStartChar new_tc.c_cc[VSTART] 372 # define termStopChar new_tc.c_cc[VSTOP] 373 # define termForw1Char new_tc.c_cc[VEOL] 374 # define termForw2Char new_tc.c_cc[VEOL] 375 # define termAytChar new_tc.c_cc[VSTATUS] 376 377 # define termEofCharp &termEofChar 378 # define termEraseCharp &termEraseChar 379 # define termIntCharp &termIntChar 380 # define termKillCharp &termKillChar 381 # define termQuitCharp &termQuitChar 382 # define termSuspCharp &termSuspChar 383 # define termFlushCharp &termFlushChar 384 # define termWerasCharp &termWerasChar 385 # define termRprntCharp &termRprntChar 386 # define termLiteralNextCharp &termLiteralNextChar 387 # define termStartCharp &termStartChar 388 # define termStopCharp &termStopChar 389 # define termForw1Charp &termForw1Char 390 # define termForw2Charp &termForw2Char 391 # define termAytCharp &termAytChar 392 393 394 /* Tn3270 section */ 395 #if defined(TN3270) 396 397 extern int 398 HaveInput, /* Whether an asynchronous I/O indication came in */ 399 noasynchtty, /* Don't do signals on I/O (SIGURG, SIGIO) */ 400 noasynchnet, /* Don't do signals on I/O (SIGURG, SIGIO) */ 401 sigiocount, /* Count of SIGIO receptions */ 402 shell_active; /* Subshell is active */ 403 404 extern char 405 *Ibackp, /* Oldest byte of 3270 data */ 406 Ibuf[], /* 3270 buffer */ 407 *Ifrontp, /* Where next 3270 byte goes */ 408 tline[200], 409 *transcom; /* Transparent command */ 410 411 /* tn3270.c */ 412 void init_3270(void); 413 int DataToNetwork(char *, int, int); 414 void inputAvailable(int); 415 void outputPurge(void); 416 int DataToTerminal(char *, int); 417 int Push3270(void); 418 void Finish3270(void); 419 void StringToTerminal(char *); 420 int _putchar(int); 421 void SetIn3270(void); 422 int tn3270_ttype(void); 423 int settranscom(int, char *[]); 424 int shell_continue(void); 425 int DataFromTerminal(char *, int); 426 int DataFromNetwork(char *, int, int); 427 void ConnectScreen(void); 428 int DoTerminalOutput(void); 429 430 #endif /* defined(TN3270) */ 431
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