externs.h revision 1.39
1 /* $NetBSD: externs.h,v 1.39 2018/12/13 04:49:19 maya 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 In3270, /* Are we in 3270 mode? */ 75 telnetport, /* Are we connected to the telnet port? */ 76 localflow, /* Flow control handled locally */ 77 restartany, /* If flow control, restart output on any character */ 78 localchars, /* we recognize interrupt/quit */ 79 donelclchars, /* the user has set "localchars" */ 80 showoptions, 81 net, /* Network file descriptor */ 82 tin, /* Terminal input file descriptor */ 83 tout, /* Terminal output file descriptor */ 84 crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ 85 autoflush, /* flush output when interrupting? */ 86 autosynch, /* send interrupt characters with SYNCH? */ 87 SYNCHing, /* Is the stream in telnet SYNCH mode? */ 88 donebinarytoggle, /* the user has put us in binary */ 89 dontlecho, /* do we suppress local echoing right now? */ 90 crmod, 91 netdata, /* Print out network data flow */ 92 prettydump, /* Print "netdata" output in user readable format */ 93 termdata, /* Print out terminal data flow */ 94 telnet_debug, /* Debug level */ 95 doaddrlookup, /* do a reverse address lookup? */ 96 clienteof; /* Client received EOF */ 97 98 extern cc_t escape; /* Escape to command mode */ 99 extern cc_t rlogin; /* Rlogin mode escape character */ 100 #ifdef KLUDGELINEMODE 101 extern cc_t echoc; /* Toggle local echoing */ 102 #endif 103 104 extern char 105 *prompt; /* Prompt for command. */ 106 107 extern char 108 doopt[], 109 dont[], 110 will[], 111 wont[], 112 options[], /* All the little options */ 113 *hostname; /* Who are we connected to? */ 114 115 #ifdef ENCRYPTION 116 extern void (*encrypt_output)(unsigned char *, int); 117 extern int (*decrypt_input)(int); 118 #endif /* ENCRYPTION */ 119 120 /* 121 * We keep track of each side of the option negotiation. 122 */ 123 124 #define MY_STATE_WILL 0x01 125 #define MY_WANT_STATE_WILL 0x02 126 #define MY_STATE_DO 0x04 127 #define MY_WANT_STATE_DO 0x08 128 129 /* 130 * Macros to check the current state of things 131 */ 132 133 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 134 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 135 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 136 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 137 138 #define my_state_is_dont(opt) (!my_state_is_do(opt)) 139 #define my_state_is_wont(opt) (!my_state_is_will(opt)) 140 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 141 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 142 143 #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;} 144 #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;} 145 #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;} 146 #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;} 147 148 #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;} 149 #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;} 150 #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;} 151 #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;} 152 153 /* 154 * Make everything symmetrical 155 */ 156 157 #define HIS_STATE_WILL MY_STATE_DO 158 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 159 #define HIS_STATE_DO MY_STATE_WILL 160 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 161 162 #define his_state_is_do my_state_is_will 163 #define his_state_is_will my_state_is_do 164 #define his_want_state_is_do my_want_state_is_will 165 #define his_want_state_is_will my_want_state_is_do 166 167 #define his_state_is_dont my_state_is_wont 168 #define his_state_is_wont my_state_is_dont 169 #define his_want_state_is_dont my_want_state_is_wont 170 #define his_want_state_is_wont my_want_state_is_dont 171 172 #define set_his_state_do set_my_state_will 173 #define set_his_state_will set_my_state_do 174 #define set_his_want_state_do set_my_want_state_will 175 #define set_his_want_state_will set_my_want_state_do 176 177 #define set_his_state_dont set_my_state_wont 178 #define set_his_state_wont set_my_state_dont 179 #define set_his_want_state_dont set_my_want_state_wont 180 #define set_his_want_state_wont set_my_want_state_dont 181 182 183 extern FILE 184 *NetTrace; /* Where debugging output goes */ 185 extern char 186 NetTraceFile[]; /* Name of file where debugging output goes */ 187 188 extern jmp_buf 189 toplevel; /* For error conditions. */ 190 191 192 /* authenc.c */ 193 int telnet_net_write(unsigned char *, int); 194 void net_encrypt(void); 195 int telnet_spin(void); 196 char *telnet_getenv(char *); 197 char *telnet_gets(char *, char *, int, int); 198 199 /* commands.c */ 200 int send_tncmd(void (*)(int, int), const char *, char *); 201 void _setlist_init(void); 202 void set_escape_char(char *); 203 int set_mode(int); 204 int clear_mode(int); 205 int modehelp(int); 206 int suspend(int, char *[]); 207 int shell(int, char *[]); 208 int quit(int, char *[]); 209 int logout(int, char *[]); 210 int env_cmd(int, char *[]); 211 struct env_lst *env_find(const unsigned char *); 212 void env_init(void); 213 struct env_lst *env_define(const unsigned char *, unsigned char *); 214 struct env_lst *env_undefine(const unsigned char *, unsigned char *); 215 struct env_lst *env_export(const unsigned char *, unsigned char *); 216 struct env_lst *env_unexport(const unsigned char *, unsigned char *); 217 struct env_lst *env_send(const unsigned char *, unsigned char *); 218 struct env_lst *env_list(const unsigned char *, unsigned char *); 219 unsigned char *env_default(int, int ); 220 unsigned char *env_getvalue(const unsigned char *); 221 void env_varval(const unsigned char *); 222 int auth_cmd(int, char *[]); 223 int ayt_status(void); 224 int encrypt_cmd(int, char *[]); 225 int tn(int, char *[]); 226 void command(int, const char *, int); 227 void cmdrc(const char *, const char *); 228 struct addrinfo; 229 230 /* main.c */ 231 void tninit(void); 232 void usage(void) __dead; 233 234 /* network.c */ 235 void init_network(void); 236 int stilloob(void); 237 void setneturg(void); 238 int netflush(void); 239 240 /* sys_bsd.c */ 241 void init_sys(void); 242 int TerminalWrite(char *, int); 243 int TerminalRead(unsigned char *, int); 244 int TerminalAutoFlush(void); 245 int TerminalSpecialChars(int); 246 void TerminalFlushOutput(void); 247 void TerminalSaveState(void); 248 cc_t *tcval(int); 249 void TerminalDefaultChars(void); 250 void TerminalRestoreState(void); 251 void TerminalNewMode(int); 252 void TerminalSpeeds(long *, long *); 253 int TerminalWindowSize(long *, long *); 254 int NetClose(int); 255 void NetNonblockingIO(int, int); 256 void NetSigIO(int, int); 257 void NetSetPgrp(int); 258 void sys_telnet_init(void); 259 int process_rings(int , int , int , int , int , int); 260 261 /* telnet.c */ 262 void init_telnet(void); 263 void send_do(int, int ); 264 void send_dont(int, int ); 265 void send_will(int, int ); 266 void send_wont(int, int ); 267 void willoption(int); 268 void wontoption(int); 269 char **mklist(char *, char *); 270 int is_unique(char *, char **, char **); 271 int setup_term(char *, int, int *); 272 char *gettermname(void); 273 void lm_will(unsigned char *, int); 274 void lm_wont(unsigned char *, int); 275 void lm_do(unsigned char *, int); 276 void lm_dont(unsigned char *, int); 277 void lm_mode(unsigned char *, int, int ); 278 void slc_init(void); 279 void slcstate(void); 280 void slc_mode_export(int); 281 void slc_mode_import(int); 282 void slc_import(int); 283 void slc_export(void); 284 void slc(unsigned char *, int); 285 void slc_check(void); 286 void slc_start_reply(void); 287 void slc_add_reply(unsigned int, unsigned int, cc_t); 288 void slc_end_reply(void); 289 int slc_update(void); 290 void env_opt(unsigned char *, int); 291 void env_opt_start(void); 292 void env_opt_start_info(void); 293 void env_opt_add(unsigned char *); 294 int opt_welldefined(const char *); 295 void env_opt_end(int); 296 int telrcv(void); 297 int rlogin_susp(void); 298 int Scheduler(int); 299 void telnet(const char *); 300 void xmitAO(void); 301 void xmitEL(void); 302 void xmitEC(void); 303 int dosynch(char *); 304 int get_status(char *); 305 void intp(void); 306 void sendbrk(void); 307 void sendabort(void); 308 void sendsusp(void); 309 void sendeof(void); 310 void sendayt(void); 311 void sendnaws(void); 312 void tel_enter_binary(int); 313 void tel_leave_binary(int); 314 315 /* terminal.c */ 316 void init_terminal(void); 317 int ttyflush(int); 318 int getconnmode(void); 319 void setconnmode(int); 320 void setcommandmode(void); 321 322 /* utilities.c */ 323 void upcase(char *); 324 int SetSockOpt(int, int, int, int); 325 void SetNetTrace(char *); 326 void Dump(int, unsigned char *, int); 327 void printoption(const char *, int, int ); 328 void optionstatus(void); 329 void printsub(int, unsigned char *, int); 330 void EmptyTerminal(void); 331 void SetForExit(void); 332 void Exit(int) __attribute__((__noreturn__)); 333 void ExitString(const char *, int) __attribute__((__noreturn__)); 334 335 336 extern struct termios new_tc; 337 338 # define termEofChar new_tc.c_cc[VEOF] 339 # define termEraseChar new_tc.c_cc[VERASE] 340 # define termIntChar new_tc.c_cc[VINTR] 341 # define termKillChar new_tc.c_cc[VKILL] 342 # define termQuitChar new_tc.c_cc[VQUIT] 343 344 # define termSuspChar new_tc.c_cc[VSUSP] 345 # define termFlushChar new_tc.c_cc[VDISCARD] 346 # define termWerasChar new_tc.c_cc[VWERASE] 347 # define termRprntChar new_tc.c_cc[VREPRINT] 348 # define termLiteralNextChar new_tc.c_cc[VLNEXT] 349 # define termStartChar new_tc.c_cc[VSTART] 350 # define termStopChar new_tc.c_cc[VSTOP] 351 # define termForw1Char new_tc.c_cc[VEOL] 352 # define termForw2Char new_tc.c_cc[VEOL] 353 # define termAytChar new_tc.c_cc[VSTATUS] 354 355 # define termEofCharp &termEofChar 356 # define termEraseCharp &termEraseChar 357 # define termIntCharp &termIntChar 358 # define termKillCharp &termKillChar 359 # define termQuitCharp &termQuitChar 360 # define termSuspCharp &termSuspChar 361 # define termFlushCharp &termFlushChar 362 # define termWerasCharp &termWerasChar 363 # define termRprntCharp &termRprntChar 364 # define termLiteralNextCharp &termLiteralNextChar 365 # define termStartCharp &termStartChar 366 # define termStopCharp &termStopChar 367 # define termForw1Charp &termForw1Char 368 # define termForw2Charp &termForw2Char 369 # define termAytCharp &termAytChar 370
Indexes created Thu Oct 30 16:09:53 GMT 2025