| 1 | #ifndef lint |
| 2 | static char sccsid[] = "@(#)conn.c 5.15 (Berkeley) %G%"; |
| 3 | #endif |
| 4 | |
| 5 | #include <signal.h> |
| 6 | #include "uucp.h" |
| 7 | #include <setjmp.h> |
| 8 | #include <ctype.h> |
| 9 | #include <errno.h> |
| 10 | #ifdef USG |
| 11 | #include <termio.h> |
| 12 | #include <fcntl.h> |
| 13 | #endif |
| 14 | #ifndef USG |
| 15 | #include <sgtty.h> |
| 16 | #endif |
| 17 | #ifdef BSD4_2 |
| 18 | #include <sys/time.h> |
| 19 | #else |
| 20 | #include <time.h> |
| 21 | #endif |
| 22 | |
| 23 | #define MAXC 1000 |
| 24 | |
| 25 | extern jmp_buf Sjbuf; |
| 26 | jmp_buf Cjbuf; |
| 27 | extern int errno, onesys; |
| 28 | extern char *sys_errlist[]; |
| 29 | extern char MaxGrade, DefMaxGrade; |
| 30 | |
| 31 | /* Parity control during login procedure */ |
| 32 | #define P_ZERO 0 |
| 33 | #define P_ONE 1 |
| 34 | #define P_EVEN 2 |
| 35 | #define P_ODD 3 |
| 36 | |
| 37 | #define ABORT -2 |
| 38 | |
| 39 | char *AbortOn = NULL; |
| 40 | char par_tab[128]; /* must be power of two */ |
| 41 | int linebaudrate; /* used for the sleep test in pk1.c */ |
| 42 | int next_fd = -1; /* predicted fd to close interrupted opens */ |
| 43 | |
| 44 | char *PCP = "PCP"; /* PC Pursuit device type */ |
| 45 | /* |
| 46 | * catch alarm routine for "expect". |
| 47 | */ |
| 48 | alarmtr() |
| 49 | { |
| 50 | signal(SIGALRM, alarmtr); |
| 51 | if (next_fd >= 0) { |
| 52 | if (close(next_fd)) |
| 53 | logent("FAIL", "ACU LINE CLOSE"); |
| 54 | next_fd = -1; |
| 55 | } |
| 56 | longjmp(Sjbuf, 1); |
| 57 | } |
| 58 | |
| 59 | /* This template is for seismo to call ihnp4 |
| 60 | * the 3 lines marked ---> will be overwritten for the appropriate city |
| 61 | */ |
| 62 | #define PCP_BAUD 3 |
| 63 | #define PCP_PHONE 4 |
| 64 | #define PCP_CITY 14 |
| 65 | #define PCP_PASSWORD 16 |
| 66 | #define PCP_RPHONE 20 |
| 67 | #define NPCFIELDS 23 |
| 68 | |
| 69 | static char *PCFlds[] = { |
| 70 | "PC-PURSUIT", |
| 71 | "Any", |
| 72 | "ACU", |
| 73 | "1200", |
| 74 | CNULL, |
| 75 | CNULL, |
| 76 | "P_ZERO", /* Telenet insists on zero parity */ |
| 77 | "ABORT", |
| 78 | "BUSY", /* Abort on Busy Signal */ |
| 79 | CNULL, |
| 80 | "\\d\\d\\r\\d\\r", /* Get telenet's attention */ |
| 81 | "TERMINAL=~3-\r-TERM~3-\r-TERM~5", /* Terminal type ? */ |
| 82 | "\\r", |
| 83 | "@", /* telenet's prompt */ |
| 84 | "D/DCWAS/21,telenetloginstring", /* overwritten later */ |
| 85 | "PASSWORD", |
| 86 | CNULL, /* telenet password */ |
| 87 | "CONNECTED", /* We're now talking to a Hayes in the remote city */ |
| 88 | "ATZ", /* Reset it */ |
| 89 | "OK", |
| 90 | "ATDT6907171", /* overwritten */ |
| 91 | "CONNECT", |
| 92 | "\\d\\r", /* We're in !*/ |
| 93 | CNULL, |
| 94 | }; |
| 95 | |
| 96 | static char PCP_brand[25]; |
| 97 | int Dcf = -1; |
| 98 | char *Flds[MAXC/10]; |
| 99 | char LineType[10]; |
| 100 | extern int LocalOnly; |
| 101 | |
| 102 | /* |
| 103 | * place a telephone call to system and login, etc. |
| 104 | * |
| 105 | * return codes: |
| 106 | * CF_SYSTEM: don't know system |
| 107 | * CF_TIME: wrong time to call |
| 108 | * CF_DIAL: call failed |
| 109 | * CF_NODEV: no devices available to place call |
| 110 | * CF_LOGIN: login/password dialog failed |
| 111 | * |
| 112 | * >0 - file no. - connect ok |
| 113 | */ |
| 114 | conn(system) |
| 115 | char *system; |
| 116 | { |
| 117 | int nf; |
| 118 | char info[MAXC], wkpre[NAMESIZE], file[NAMESIZE]; |
| 119 | register FILE *fsys; |
| 120 | int fcode = 0; |
| 121 | |
| 122 | nf = 0; |
| 123 | |
| 124 | fsys = fopen(SYSFILE, "r"); |
| 125 | if (fsys == NULL) { |
| 126 | syslog(LOG_ERR, "fopen(%s) failed: %m", SYSFILE); |
| 127 | cleanup(FAIL); |
| 128 | } |
| 129 | |
| 130 | DEBUG(4, "finds (%s) called\n", system); |
| 131 | keeplooking: |
| 132 | while((nf = finds(fsys, system, info, Flds)) > 0) { |
| 133 | strncpy(LineType, Flds[F_LINE], 10); |
| 134 | if (LocalOnly) { |
| 135 | if (strcmp("TCP", LineType) |
| 136 | && strcmp("DIR", LineType) |
| 137 | && strcmp("LOCAL", LineType) ) { |
| 138 | fcode = CF_TIME; |
| 139 | continue; |
| 140 | } |
| 141 | } |
| 142 | sprintf(wkpre, "%c.%.*s", CMDPRE, SYSNSIZE, Rmtname); |
| 143 | if (!onesys && MaxGrade != DefMaxGrade && |
| 144 | !iswrk(file, "chk", Spool, wkpre)) { |
| 145 | fcode = CF_TIME; |
| 146 | continue; |
| 147 | } |
| 148 | /* For GTE's PC Pursuit */ |
| 149 | if (snccmp(LineType, PCP) == SAME) { |
| 150 | FILE *dfp; |
| 151 | int status; |
| 152 | static struct Devices dev; |
| 153 | |
| 154 | dfp = fopen(DEVFILE, "r"); |
| 155 | if (dfp == NULL) { |
| 156 | syslog(LOG_ERR, "fopen(%s) failed: %m", |
| 157 | DEVFILE); |
| 158 | cleanup(FAIL); |
| 159 | } |
| 160 | while ((status=rddev(dfp, &dev)) != FAIL |
| 161 | && strcmp(PCP, dev.D_type) != SAME) |
| 162 | ; |
| 163 | fclose(dfp); |
| 164 | if (status == FAIL) |
| 165 | continue; |
| 166 | if (mlock(PCP) == FAIL) { |
| 167 | fcode = CF_NODEV; |
| 168 | logent("DEVICE", "NO"); |
| 169 | continue; |
| 170 | } |
| 171 | PCFlds[PCP_BAUD] = dev.D_class; |
| 172 | PCFlds[PCP_PHONE] = dev.D_calldev; |
| 173 | sprintf(PCFlds[PCP_CITY], "c d/%s%s,%s", |
| 174 | Flds[F_CLASS], |
| 175 | index(Flds[F_CLASS], '/') == NULL ? "/12" : "", |
| 176 | dev.D_arg[D_CHAT]); |
| 177 | PCFlds[PCP_PASSWORD] = dev.D_line; |
| 178 | strncpy(&PCFlds[PCP_RPHONE][4], Flds[F_PHONE], 7); |
| 179 | strncpy(PCP_brand, dev.D_brand, sizeof(PCP_brand)); |
| 180 | if ((fcode = getto(PCFlds)) < 0) { |
| 181 | rmlock(PCP); |
| 182 | continue; |
| 183 | } |
| 184 | Dcf = fcode; |
| 185 | fcode = login(NPCFIELDS, PCFlds, Dcf); |
| 186 | if (fcode == SUCCESS) |
| 187 | break; |
| 188 | fcode = CF_DIAL; |
| 189 | rmlock(PCP); |
| 190 | /* end PC Pursuit */ |
| 191 | } else if ((fcode = getto(Flds)) > 0) { |
| 192 | Dcf = fcode; |
| 193 | break; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | if (nf <= 0) { |
| 198 | fclose(fsys); |
| 199 | return fcode ? fcode : nf; |
| 200 | } |
| 201 | |
| 202 | |
| 203 | if (fcode >= 0) { |
| 204 | DEBUG(4, "login %s\n", "called"); |
| 205 | setproctitle("login"); |
| 206 | fcode = login(nf, Flds, Dcf); } |
| 207 | if (fcode < 0) { |
| 208 | clsacu(); |
| 209 | if (fcode == ABORT) { |
| 210 | fcode = CF_DIAL; |
| 211 | goto keeplooking; |
| 212 | } else { |
| 213 | fclose(fsys); |
| 214 | return CF_LOGIN; |
| 215 | } |
| 216 | } |
| 217 | fclose(fsys); |
| 218 | fioclex(Dcf); |
| 219 | return Dcf; |
| 220 | } |
| 221 | |
| 222 | int nulldev(); |
| 223 | int (*CU_end)() = nulldev; |
| 224 | |
| 225 | /* |
| 226 | * connect to remote machine |
| 227 | * |
| 228 | * return codes: |
| 229 | * >0 - file number - ok |
| 230 | * FAIL - failed |
| 231 | */ |
| 232 | getto(flds) |
| 233 | register char *flds[]; |
| 234 | { |
| 235 | register struct condev *cd; |
| 236 | int diropn(); |
| 237 | char *line; |
| 238 | |
| 239 | DEBUG(4, "getto: call no. %s ", flds[F_PHONE]); |
| 240 | DEBUG(4, "for sys %s\n", flds[F_NAME]); |
| 241 | |
| 242 | if (snccmp(flds[F_LINE], "LOCAL") == SAME) |
| 243 | line = "ACU"; |
| 244 | else |
| 245 | line = flds[F_LINE]; |
| 246 | #ifdef DIALINOUT |
| 247 | if (snccmp(line, "ACU") != SAME) |
| 248 | reenable(); |
| 249 | #endif DIALINOUT |
| 250 | CU_end = nulldev; |
| 251 | if (snccmp(line, PCP) == SAME) { |
| 252 | for(cd = condevs; cd->CU_meth != NULL; cd++) { |
| 253 | if (snccmp(PCP_brand, cd->CU_brand) == SAME) { |
| 254 | CU_end = cd->CU_clos; |
| 255 | return diropn(flds); |
| 256 | } |
| 257 | } |
| 258 | logent(PCP_brand, "UNSUPPORTED ACU TYPE"); |
| 259 | } else { |
| 260 | for (cd = condevs; cd->CU_meth != NULL; cd++) { |
| 261 | if (snccmp(cd->CU_meth, line) == SAME) { |
| 262 | DEBUG(4, "Using %s to call\n", cd->CU_meth); |
| 263 | return (*(cd->CU_gen))(flds); |
| 264 | } |
| 265 | } |
| 266 | DEBUG(1, "Can't find %s, assuming DIR\n", flds[F_LINE]); |
| 267 | } |
| 268 | return diropn(flds); /* search failed, so use direct */ |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | * close call unit |
| 273 | * |
| 274 | * return codes: none |
| 275 | */ |
| 276 | clsacu() |
| 277 | { |
| 278 | /* make *sure* Dcf is no longer exclusive. |
| 279 | * Otherwise dual call-in/call-out modems could get stuck. |
| 280 | * Unfortunately, doing this here is not ideal, but it is the |
| 281 | * easiest place to put the call. |
| 282 | * Hopefully everyone honors the LCK protocol, of course |
| 283 | */ |
| 284 | #ifdef TIOCNXCL |
| 285 | if (!IsTcpIp && Dcf >= 0 && ioctl(Dcf, TIOCNXCL, STBNULL) < 0) |
| 286 | DEBUG(5, "clsacu ioctl %s\n", sys_errlist[errno]); |
| 287 | #endif |
| 288 | if (setjmp(Sjbuf)) |
| 289 | logent(Rmtname, "CLOSE TIMEOUT"); |
| 290 | else { |
| 291 | signal(SIGALRM, alarmtr); |
| 292 | alarm(20); |
| 293 | (*(CU_end))(Dcf); |
| 294 | alarm(0); |
| 295 | } |
| 296 | if (close(Dcf) == 0) { |
| 297 | DEBUG(4, "fd %d NOT CLOSED by CU_clos\n", Dcf); |
| 298 | logent("clsacu", "NOT CLOSED by CU_clos"); |
| 299 | } |
| 300 | Dcf = -1; |
| 301 | CU_end = nulldev; |
| 302 | } |
| 303 | |
| 304 | /* |
| 305 | * expand phone number for given prefix and number |
| 306 | */ |
| 307 | exphone(in, out) |
| 308 | register char *in, *out; |
| 309 | { |
| 310 | FILE *fn; |
| 311 | char pre[MAXPH], npart[MAXPH], tpre[MAXPH], p[MAXPH]; |
| 312 | char buf[BUFSIZ]; |
| 313 | register char *s1; |
| 314 | |
| 315 | if (!isascii(*in) || !isalpha(*in)) { |
| 316 | strcpy(out, in); |
| 317 | return; |
| 318 | } |
| 319 | |
| 320 | s1=pre; |
| 321 | while (isascii(*in) && isalpha(*in)) |
| 322 | *s1++ = *in++; |
| 323 | *s1 = '\0'; |
| 324 | s1 = npart; |
| 325 | while (*in != '\0') |
| 326 | *s1++ = *in++; |
| 327 | *s1 = '\0'; |
| 328 | |
| 329 | tpre[0] = '\0'; |
| 330 | if ((fn = fopen(DIALFILE, "r")) == NULL) |
| 331 | DEBUG(2, "CAN'T OPEN %s\n", DIALFILE); |
| 332 | else { |
| 333 | while (cfgets(buf, BUFSIZ, fn)) { |
| 334 | if (sscanf(buf, "%s%s", p, tpre) != 2) |
| 335 | continue; |
| 336 | if (strcmp(p, pre) == SAME) |
| 337 | goto found; |
| 338 | tpre[0] = '\0'; |
| 339 | } |
| 340 | DEBUG(2, "CAN'T FIND dialcodes prefix '%s'\n", pre); |
| 341 | found:; |
| 342 | fclose(fn); |
| 343 | } |
| 344 | |
| 345 | strcpy(out, tpre); |
| 346 | strcat(out, npart); |
| 347 | } |
| 348 | |
| 349 | /* |
| 350 | * read and decode a line from device file |
| 351 | * |
| 352 | * return code - FAIL at end-of file; 0 otherwise |
| 353 | */ |
| 354 | rddev(fp, dev) |
| 355 | register struct Devices *dev; |
| 356 | FILE *fp; |
| 357 | { |
| 358 | register int na; |
| 359 | |
| 360 | if (!cfgets(dev->D_argbfr, sizeof(dev->D_argbfr), fp)) |
| 361 | return FAIL; |
| 362 | na = getargs(dev->D_argbfr, dev->D_arg, 20); |
| 363 | if (na < 4) { |
| 364 | syslog(LOG_ERR, "%s: invalid device entry", dev->D_argbfr); |
| 365 | cleanup(FAIL); |
| 366 | } |
| 367 | if (na == 4) { |
| 368 | dev->D_brand = ""; |
| 369 | na++; |
| 370 | } |
| 371 | dev->D_speed = atoi(fdig(dev->D_class)); |
| 372 | dev->D_numargs = na; |
| 373 | return 0; |
| 374 | } |
| 375 | |
| 376 | /* |
| 377 | * set system attribute vector |
| 378 | * |
| 379 | * return codes: |
| 380 | * >0 - number of arguments in vector - succeeded |
| 381 | * CF_SYSTEM - system name not found |
| 382 | * CF_TIME - wrong time to call |
| 383 | */ |
| 384 | finds(fsys, sysnam, info, flds) |
| 385 | char *sysnam, info[], *flds[]; |
| 386 | FILE *fsys; |
| 387 | { |
| 388 | int na; |
| 389 | int fcode = 0; |
| 390 | |
| 391 | /* format of fields |
| 392 | * 0 name; |
| 393 | * 1 time |
| 394 | * 2 acu/hardwired |
| 395 | * 3 speed |
| 396 | * etc |
| 397 | */ |
| 398 | while (cfgets(info, MAXC, fsys) != NULL) { |
| 399 | na = getargs(info, flds, MAXC/10); |
| 400 | if (strncmp(sysnam, flds[F_NAME], MAXBASENAME) != SAME) |
| 401 | continue; |
| 402 | if (ifdate(flds[F_TIME]) != FAIL) |
| 403 | /* found a good entry */ |
| 404 | return na; |
| 405 | DEBUG(2, "Wrong time ('%s') to call\n", flds[F_TIME]); |
| 406 | fcode = CF_TIME; |
| 407 | } |
| 408 | return fcode ? fcode : CF_SYSTEM; |
| 409 | } |
| 410 | |
| 411 | /* |
| 412 | * do login conversation |
| 413 | * |
| 414 | * return codes: SUCCESS | FAIL |
| 415 | */ |
| 416 | login(nf, flds, fn) |
| 417 | register char *flds[]; |
| 418 | int nf, fn; |
| 419 | { |
| 420 | register char *want, *altern; |
| 421 | int k, ok; |
| 422 | |
| 423 | if (nf < 4) { |
| 424 | syslog(LOG_ERR, "Too few log fields: %d", nf); |
| 425 | cleanup(FAIL); |
| 426 | } |
| 427 | if (setjmp(Cjbuf)) |
| 428 | return FAIL; |
| 429 | AbortOn = NULL; |
| 430 | for (k = F_LOGIN; k < nf; k += 2) { |
| 431 | want = flds[k]; |
| 432 | if (want == NULL) |
| 433 | want = ""; |
| 434 | ok = FAIL; |
| 435 | while (ok != SUCCESS) { |
| 436 | altern = index(want, '-'); |
| 437 | if (altern != NULL) |
| 438 | *altern++ = '\0'; |
| 439 | if (strcmp(want, "ABORT") == 0) { |
| 440 | AbortOn = flds[k+1]; |
| 441 | DEBUG(4, "ABORT ON: %s\n", AbortOn); |
| 442 | goto nextfield; |
| 443 | } |
| 444 | DEBUG(4, "wanted \"%s\"\n", want); |
| 445 | ok = expect(want, fn); |
| 446 | DEBUG(4, "got: %s\n", ok ? "?" : "that"); |
| 447 | if (ok == FAIL) { |
| 448 | if (altern == NULL) { |
| 449 | logent("LOGIN", _FAILED); |
| 450 | return FAIL; |
| 451 | } |
| 452 | want = index(altern, '-'); |
| 453 | if (want != NULL) |
| 454 | *want++ = '\0'; |
| 455 | sendthem(altern, fn); |
| 456 | } else |
| 457 | if (ok == ABORT) { |
| 458 | char sbuf[MAXFULLNAME]; |
| 459 | sprintf(sbuf, "LOGIN ABORTED on \"%s\"", AbortOn); |
| 460 | logent(sbuf, _FAILED); |
| 461 | return ABORT; |
| 462 | } |
| 463 | } |
| 464 | sleep(1); |
| 465 | if (k+1 < nf) |
| 466 | sendthem(flds[k+1], fn); |
| 467 | nextfield: ; |
| 468 | } |
| 469 | return SUCCESS; |
| 470 | } |
| 471 | |
| 472 | |
| 473 | /* conditional table generation to support odd speeds */ |
| 474 | struct sg_spds {int sp_val, sp_name;} spds[] = { |
| 475 | #ifdef B50 |
| 476 | { 50, B50}, |
| 477 | #endif |
| 478 | #ifdef B75 |
| 479 | { 75, B75}, |
| 480 | #endif |
| 481 | #ifdef B110 |
| 482 | { 110, B110}, |
| 483 | #endif |
| 484 | #ifdef B150 |
| 485 | { 150, B150}, |
| 486 | #endif |
| 487 | #ifdef B200 |
| 488 | { 200, B200}, |
| 489 | #endif |
| 490 | #ifdef B300 |
| 491 | { 300, B300}, |
| 492 | #endif |
| 493 | #ifdef B600 |
| 494 | {600, B600}, |
| 495 | #endif |
| 496 | #ifdef B1200 |
| 497 | {1200, B1200}, |
| 498 | #endif |
| 499 | #ifdef B1800 |
| 500 | {1800, B1800}, |
| 501 | #endif |
| 502 | #ifdef B2000 |
| 503 | {2000, B2000}, |
| 504 | #endif |
| 505 | #ifdef B2400 |
| 506 | {2400, B2400}, |
| 507 | #endif |
| 508 | #ifdef B3600 |
| 509 | {3600, B3600}, |
| 510 | #endif |
| 511 | #ifdef B4800 |
| 512 | {4800, B4800}, |
| 513 | #endif |
| 514 | #ifdef B7200 |
| 515 | {7200, B7200}, |
| 516 | #endif |
| 517 | #ifdef B9600 |
| 518 | {9600, B9600}, |
| 519 | #endif |
| 520 | #ifdef B19200 |
| 521 | {19200, B19200}, |
| 522 | #endif |
| 523 | #ifdef EXTA |
| 524 | {19200, EXTA}, |
| 525 | #endif |
| 526 | {0, 0} |
| 527 | }; |
| 528 | |
| 529 | /* |
| 530 | * set speed/echo/mode... |
| 531 | * |
| 532 | * return codes: none |
| 533 | */ |
| 534 | fixline(tty, spwant) |
| 535 | int tty, spwant; |
| 536 | { |
| 537 | #ifdef USG |
| 538 | struct termio ttbuf; |
| 539 | #else !USG |
| 540 | struct sgttyb ttbuf; |
| 541 | #endif !USG |
| 542 | register struct sg_spds *ps; |
| 543 | int speed = -1; |
| 544 | |
| 545 | for (ps = spds; ps->sp_val; ps++) |
| 546 | if (ps->sp_val == spwant) |
| 547 | speed = ps->sp_name; |
| 548 | if (speed < 0) { |
| 549 | syslog(LOG_ERR, "unrecognized speed: %d", speed); |
| 550 | cleanup(FAIL); |
| 551 | } |
| 552 | #ifdef USG |
| 553 | if (ioctl(tty, TCGETA, &ttbuf) < 0) |
| 554 | return FAIL; |
| 555 | /* ttbuf.sg_flags = (ANYP|RAW); |
| 556 | ttbuf.sg_ispeed = ttbuf.sg_ospeed = speed; */ |
| 557 | ttbuf.c_iflag = (ushort)0; |
| 558 | ttbuf.c_oflag = (ushort)0; |
| 559 | ttbuf.c_cflag = (speed|CS8|HUPCL|CREAD); |
| 560 | ttbuf.c_lflag = (ushort)0; |
| 561 | ttbuf.c_cc[VMIN] = 6; |
| 562 | ttbuf.c_cc[VTIME] = 1; |
| 563 | if (ioctl(tty, TCSETA, &ttbuf) < 0) |
| 564 | return FAIL; |
| 565 | #else !USG |
| 566 | if (ioctl(tty, TIOCGETP, &ttbuf) < 0) |
| 567 | return FAIL; |
| 568 | ttbuf.sg_flags = (ANYP|RAW); |
| 569 | ttbuf.sg_ispeed = ttbuf.sg_ospeed = speed; |
| 570 | if (ioctl(tty, TIOCSETP, &ttbuf) < 0) |
| 571 | return FAIL; |
| 572 | #endif |
| 573 | #ifndef USG |
| 574 | if (ioctl(tty, TIOCHPCL, STBNULL) < 0) |
| 575 | return FAIL; |
| 576 | if (ioctl(tty, TIOCEXCL, STBNULL) < 0) |
| 577 | return FAIL; |
| 578 | #endif |
| 579 | linebaudrate = spwant; |
| 580 | return SUCCESS; |
| 581 | } |
| 582 | |
| 583 | #define MR 100 |
| 584 | |
| 585 | /* |
| 586 | * look for expected string |
| 587 | * |
| 588 | * return codes: |
| 589 | * 0 - found |
| 590 | * FAIL - lost line or too many characters read |
| 591 | * some character - timed out |
| 592 | */ |
| 593 | expect(str, fn) |
| 594 | register char *str; |
| 595 | int fn; |
| 596 | { |
| 597 | char rdvec[MR]; |
| 598 | register char *rp = rdvec, *strptr; |
| 599 | int kr, cnt_char; |
| 600 | char nextch; |
| 601 | int timo = MAXMSGTIME; |
| 602 | |
| 603 | if (*str == '\0' || strcmp(str, "\"\"") == SAME) |
| 604 | return SUCCESS; |
| 605 | /* Cleanup str, convert \0xx strings to one char */ |
| 606 | for (strptr = str; *strptr; strptr++) { |
| 607 | if (*strptr == '\\') |
| 608 | switch(*++strptr) { |
| 609 | case 's': |
| 610 | DEBUG(5, "BLANK\n", CNULL); |
| 611 | strptr--; |
| 612 | *strptr = ' '; |
| 613 | strcpy(&strptr[1], &strptr[4]); |
| 614 | break; |
| 615 | default: |
| 616 | strptr--; /* back up to backslash */ |
| 617 | sscanf(strptr + 1,"%o", &cnt_char); |
| 618 | DEBUG(6, "BACKSLASHED %02xH\n", cnt_char); |
| 619 | *strptr = (char) (cnt_char); |
| 620 | strcpy(&strptr[1], &strptr[4]); |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | strptr = index(str, '~'); |
| 625 | if (strptr != NULL) { |
| 626 | *strptr++ = '\0'; |
| 627 | timo = atoi(strptr); |
| 628 | if (timo <= 0) |
| 629 | timo = MAXMSGTIME; |
| 630 | } |
| 631 | |
| 632 | if (setjmp(Sjbuf)) |
| 633 | return FAIL; |
| 634 | signal(SIGALRM, alarmtr); |
| 635 | alarm(timo); |
| 636 | *rp = 0; |
| 637 | while (notin(str, rdvec)) { |
| 638 | int c; |
| 639 | if(AbortOn != NULL && !notin(AbortOn, rdvec)) { |
| 640 | DEBUG(1, "Call aborted on '%s'\n", AbortOn); |
| 641 | alarm(0); |
| 642 | return ABORT; |
| 643 | } |
| 644 | kr = read(fn, &nextch, 1); |
| 645 | if (kr <= 0) { |
| 646 | alarm(0); |
| 647 | DEBUG(4, "lost line kr - %d\n, ", kr); |
| 648 | logent("LOGIN", "LOST LINE"); |
| 649 | return FAIL; |
| 650 | } |
| 651 | c = nextch & 0177; |
| 652 | if (c == '\0') |
| 653 | continue; |
| 654 | DEBUG(4, (isprint(c) || isspace(c)) ? "%c" : "\\%03o", c); |
| 655 | *rp++ = c; |
| 656 | if (rp >= rdvec + MR) { |
| 657 | register char *p; |
| 658 | for (p = rdvec+MR/2; p < rp; p++) |
| 659 | *(p-MR/2) = *p; |
| 660 | rp -= MR/2; |
| 661 | } |
| 662 | *rp = '\0'; |
| 663 | } |
| 664 | alarm(0); |
| 665 | return SUCCESS; |
| 666 | } |
| 667 | |
| 668 | |
| 669 | /* |
| 670 | * Determine next file descriptor that would be allocated. |
| 671 | * This permits later closing of a file whose open was interrupted. |
| 672 | * It is a UNIX kernel problem, but it has to be handled. |
| 673 | * unc!smb (Steve Bellovin) probably first discovered it. |
| 674 | */ |
| 675 | getnextfd() |
| 676 | { |
| 677 | close(next_fd = open("/", 0)); |
| 678 | } |
| 679 | |
| 680 | /* |
| 681 | * send line of login sequence |
| 682 | * |
| 683 | * return codes: none |
| 684 | */ |
| 685 | sendthem(str, fn) |
| 686 | register char *str; |
| 687 | int fn; |
| 688 | { |
| 689 | register char *strptr; |
| 690 | int i, n, cr = 1; |
| 691 | register char c; |
| 692 | static int p_init = 0; |
| 693 | |
| 694 | DEBUG(5, "send \"%s\"\n", str); |
| 695 | |
| 696 | if (!p_init) { |
| 697 | p_init++; |
| 698 | bld_partab(P_ZERO); |
| 699 | } |
| 700 | |
| 701 | if (prefix("BREAK", str)) { |
| 702 | sscanf(&str[5], "%1d", &i); |
| 703 | if (i <= 0 || i > 10) |
| 704 | i = 3; |
| 705 | /* send break */ |
| 706 | genbrk(fn, i); |
| 707 | return; |
| 708 | } |
| 709 | |
| 710 | if (prefix("PAUSE", str)) { |
| 711 | sscanf(&str[5], "%1d", &i); |
| 712 | if (i <= 0 || i > 10) |
| 713 | i = 3; |
| 714 | /* pause for a while */ |
| 715 | sleep((unsigned)i); |
| 716 | return; |
| 717 | } |
| 718 | |
| 719 | if (strcmp(str, "EOT") == SAME) { |
| 720 | p_chwrite(fn, '\04'); |
| 721 | return; |
| 722 | } |
| 723 | |
| 724 | /* Send a '\n' */ |
| 725 | if (strcmp(str, "LF") == SAME) { |
| 726 | p_chwrite(fn, '\n'); |
| 727 | return; |
| 728 | } |
| 729 | |
| 730 | /* Send a '\r' */ |
| 731 | if (strcmp(str, "CR") == SAME) { |
| 732 | p_chwrite(fn, '\r'); |
| 733 | return; |
| 734 | } |
| 735 | |
| 736 | /* Set parity as needed */ |
| 737 | if (strcmp(str, "P_ZERO") == SAME) { |
| 738 | bld_partab(P_ZERO); |
| 739 | return; |
| 740 | } |
| 741 | if (strcmp(str, "P_ONE") == SAME) { |
| 742 | bld_partab(P_ONE); |
| 743 | return; |
| 744 | } |
| 745 | if (strcmp(str, "P_EVEN") == SAME) { |
| 746 | bld_partab(P_EVEN); |
| 747 | return; |
| 748 | } |
| 749 | if (strcmp(str, "P_ODD") == SAME) { |
| 750 | bld_partab(P_ODD); |
| 751 | return; |
| 752 | } |
| 753 | |
| 754 | /* If "", just send '\r' */ |
| 755 | if (strcmp(str, "\"\"") == SAME) { |
| 756 | p_chwrite(fn, '\r'); |
| 757 | return; |
| 758 | } |
| 759 | |
| 760 | strptr = str; |
| 761 | while ((c = *strptr++) != '\0') { |
| 762 | if (c == '\\') { |
| 763 | switch(*strptr++) { |
| 764 | case '\0': |
| 765 | DEBUG(5, "TRAILING BACKSLASH IGNORED\n", CNULL); |
| 766 | --strptr; |
| 767 | continue; |
| 768 | case 's': |
| 769 | DEBUG(5, "BLANK\n", CNULL); |
| 770 | c = ' '; |
| 771 | break; |
| 772 | case 'd': |
| 773 | DEBUG(5, "DELAY\n", CNULL); |
| 774 | sleep(1); |
| 775 | continue; |
| 776 | case 'n': |
| 777 | DEBUG(5, "NEW LINE\n", CNULL); |
| 778 | c = '\n'; |
| 779 | break; |
| 780 | case 'r': |
| 781 | DEBUG(5, "RETURN\n", CNULL); |
| 782 | c = '\r'; |
| 783 | break; |
| 784 | case 'b': |
| 785 | if (isdigit(*strptr)) { |
| 786 | i = (*strptr++ - '0'); |
| 787 | if (i <= 0 || i > 10) |
| 788 | i = 3; |
| 789 | } else |
| 790 | i = 3; |
| 791 | /* send break */ |
| 792 | genbrk(fn, i); |
| 793 | if (*strptr == '\0') |
| 794 | cr = 0; |
| 795 | continue; |
| 796 | case 'c': |
| 797 | if (*strptr == '\0') { |
| 798 | DEBUG(5, "NO CR\n", CNULL); |
| 799 | cr = 0; |
| 800 | } else |
| 801 | DEBUG(5, "NO CR - IGNORED NOT EOL\n", CNULL); |
| 802 | continue; |
| 803 | #define isoctal(x) ((x >= '0') && (x <= '7')) |
| 804 | default: |
| 805 | if (isoctal(strptr[-1])) { |
| 806 | i = 0; |
| 807 | n = 0; |
| 808 | --strptr; |
| 809 | while (isoctal(*strptr) && ++n <= 3) |
| 810 | i = i * 8 + (*strptr++ - '0'); |
| 811 | DEBUG(5, "\\%o\n", i); |
| 812 | p_chwrite(fn, (char)i); |
| 813 | continue; |
| 814 | } |
| 815 | } |
| 816 | } |
| 817 | p_chwrite(fn, c); |
| 818 | } |
| 819 | |
| 820 | if (cr) |
| 821 | p_chwrite(fn, '\r'); |
| 822 | return; |
| 823 | } |
| 824 | |
| 825 | p_chwrite(fd, c) |
| 826 | int fd; |
| 827 | char c; |
| 828 | { |
| 829 | c = par_tab[c&0177]; |
| 830 | if (write(fd, &c, 1) != 1) { |
| 831 | logent(sys_errlist[errno], "BAD WRITE"); |
| 832 | longjmp(Cjbuf, 2); |
| 833 | } |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * generate parity table for use by p_chwrite. |
| 838 | */ |
| 839 | bld_partab(type) |
| 840 | int type; |
| 841 | { |
| 842 | register int i, j, n; |
| 843 | |
| 844 | for (i = 0; i < sizeof(par_tab); i++) { |
| 845 | n = 0; |
| 846 | for (j = i&(sizeof(par_tab)-1); j; j = (j-1)&j) |
| 847 | n++; |
| 848 | par_tab[i] = i; |
| 849 | if (type == P_ONE |
| 850 | || (type == P_EVEN && (n&01) != 0) |
| 851 | || (type == P_ODD && (n&01) == 0)) |
| 852 | par_tab[i] |= sizeof(par_tab); |
| 853 | } |
| 854 | } |
| 855 | |
| 856 | /* |
| 857 | * check for occurrence of substring "sh" |
| 858 | * |
| 859 | * return codes: |
| 860 | * 0 - found the string |
| 861 | * 1 - not in the string |
| 862 | */ |
| 863 | notin(sh, lg) |
| 864 | register char *sh, *lg; |
| 865 | { |
| 866 | while (*lg != '\0') { |
| 867 | if (wprefix(sh, lg)) |
| 868 | return 0; |
| 869 | else |
| 870 | lg++; |
| 871 | } |
| 872 | return 1; |
| 873 | } |
| 874 | |
| 875 | /* |
| 876 | * Allow multiple date specifications separated by ','. |
| 877 | */ |
| 878 | ifdate(p) |
| 879 | register char *p; |
| 880 | { |
| 881 | register char *np; |
| 882 | register int ret, g; |
| 883 | int rtime, i; |
| 884 | |
| 885 | /* pick up retry time for failures */ |
| 886 | /* global variable Retrytime is set here */ |
| 887 | if ((np = index(p, ';')) == NULL) { |
| 888 | Retrytime = RETRYTIME; |
| 889 | } else { |
| 890 | i = sscanf(np+1, "%d", &rtime); |
| 891 | if (i < 1 || rtime < 0) |
| 892 | rtime = 5; |
| 893 | Retrytime = rtime * 60; |
| 894 | } |
| 895 | |
| 896 | ret = FAIL; |
| 897 | MaxGrade = '\0'; |
| 898 | do { |
| 899 | np = strpbrk(p, ",|"); /* prefer , but allow | for compat */ |
| 900 | if (np) |
| 901 | *np = '\0'; |
| 902 | g = ifadate(p); |
| 903 | DEBUG(11,"ifadate returns %o\n", g); |
| 904 | if (g != FAIL) { |
| 905 | ret = SUCCESS; |
| 906 | if (g > MaxGrade) |
| 907 | MaxGrade = g; |
| 908 | } |
| 909 | if (np) |
| 910 | *np = ','; |
| 911 | p = np + 1; |
| 912 | } while (np); |
| 913 | if (MaxGrade == '\0') |
| 914 | MaxGrade = DefMaxGrade; |
| 915 | return ret; |
| 916 | } |
| 917 | |
| 918 | /* |
| 919 | * this routine will check a string (string) |
| 920 | * like "MoTu0800-1730" to see if the present |
| 921 | * time is within the given limits. |
| 922 | * SIDE EFFECT - Retrytime is set |
| 923 | * |
| 924 | * return codes: |
| 925 | * 0 - not within limits |
| 926 | * 1 - within limits |
| 927 | */ |
| 928 | |
| 929 | ifadate(string) |
| 930 | char *string; |
| 931 | { |
| 932 | static char *days[]={ |
| 933 | "Su", "Mo", "Tu", "We", "Th", "Fr", "Sa", 0 |
| 934 | }; |
| 935 | time_t clock; |
| 936 | register char *s = string; |
| 937 | int i, tl, th, tn, dayok=0; |
| 938 | struct tm *localtime(); |
| 939 | struct tm *tp; |
| 940 | char *p, MGrade; |
| 941 | |
| 942 | if ((p = index(s, '/')) == NULL) |
| 943 | MGrade = DefMaxGrade; |
| 944 | else |
| 945 | MGrade = p[1]; |
| 946 | |
| 947 | time(&clock); |
| 948 | tp = localtime(&clock); |
| 949 | while (isascii(*s) && isalpha(*s)) { |
| 950 | for (i = 0; days[i]; i++) { |
| 951 | if (prefix(days[i], s)) |
| 952 | if (tp->tm_wday == i) |
| 953 | dayok = 1; |
| 954 | } |
| 955 | |
| 956 | if (prefix("Wk", s)) |
| 957 | if (tp->tm_wday >= 1 && tp->tm_wday <= 5) |
| 958 | dayok = 1; |
| 959 | if (prefix("Any", s)) |
| 960 | dayok = 1; |
| 961 | if (prefix("Evening", s)) { |
| 962 | /* Sat or Sun */ |
| 963 | if (tp->tm_wday == 6 || tp->tm_wday == 0 |
| 964 | || tp->tm_hour >= 17 || tp->tm_hour < 8) |
| 965 | dayok = 1; |
| 966 | } |
| 967 | if (prefix("Night", s)) { |
| 968 | if (tp->tm_wday == 6 /* Sat */ |
| 969 | || tp->tm_hour >= 23 || tp->tm_hour < 8 |
| 970 | /* Sunday before 5pm */ |
| 971 | || (tp->tm_wday == 0 && tp->tm_hour < 17)) |
| 972 | dayok = 1; |
| 973 | } |
| 974 | if (prefix("NonPeak", s)) { /* For Tymnet and PC Pursuit */ |
| 975 | /* Sat or Sun */ |
| 976 | if (tp->tm_wday == 6 || tp->tm_wday == 0 |
| 977 | || tp->tm_hour >= 18 || tp->tm_hour < 7) |
| 978 | dayok = 1; |
| 979 | } |
| 980 | s++; |
| 981 | } |
| 982 | |
| 983 | if (dayok == 0 && s != string) |
| 984 | return FAIL; |
| 985 | i = sscanf(s, "%d-%d", &tl, &th); |
| 986 | if (i < 2) |
| 987 | return MGrade; |
| 988 | tn = tp->tm_hour * 100 + tp->tm_min; |
| 989 | if (th < tl) { /* crosses midnight */ |
| 990 | if (tl <= tn || tn < th) |
| 991 | return MGrade; |
| 992 | } else { |
| 993 | if (tl <= tn && tn < th) |
| 994 | return MGrade; |
| 995 | } |
| 996 | return FAIL; |
| 997 | } |
| 998 | |
| 999 | /* |
| 1000 | * find first digit in string |
| 1001 | * |
| 1002 | * return - pointer to first digit in string or end of string |
| 1003 | */ |
| 1004 | char * |
| 1005 | fdig(cp) |
| 1006 | register char *cp; |
| 1007 | { |
| 1008 | register char *c; |
| 1009 | |
| 1010 | for (c = cp; *c; c++) |
| 1011 | if (*c >= '0' && *c <= '9') |
| 1012 | break; |
| 1013 | return c; |
| 1014 | } |
| 1015 | |
| 1016 | /* |
| 1017 | * Compare strings: s1>s2: >0 s1==s2: 0 s1<s2: <0 |
| 1018 | * Strings are compared as if they contain all capital letters. |
| 1019 | */ |
| 1020 | snccmp(s1, s2) |
| 1021 | register char *s1, *s2; |
| 1022 | { |
| 1023 | char c1, c2; |
| 1024 | |
| 1025 | if (islower(*s1)) |
| 1026 | c1 = toupper(*s1); |
| 1027 | else |
| 1028 | c1 = *s1; |
| 1029 | if (islower(*s2)) |
| 1030 | c2 = toupper(*s2); |
| 1031 | else |
| 1032 | c2 = *s2; |
| 1033 | |
| 1034 | while (c1 == c2) { |
| 1035 | if (*s1++ == '\0') |
| 1036 | return 0; |
| 1037 | s2++; |
| 1038 | if (islower(*s1)) |
| 1039 | c1 = toupper(*s1); |
| 1040 | else |
| 1041 | c1 = *s1; |
| 1042 | if (islower(*s2)) |
| 1043 | c2 = toupper(*s2); |
| 1044 | else |
| 1045 | c2 = *s2; |
| 1046 | } |
| 1047 | return c1 - c2; |
| 1048 | } |
| 1049 | |
| 1050 | /* |
| 1051 | * Compare strings: s1>s2: >0 s1==s2: 0 s1<s2: <0 |
| 1052 | * Strings are compared as if they contain all capital letters. |
| 1053 | */ |
| 1054 | sncncmp(s1, s2, n) |
| 1055 | register char *s1, *s2; |
| 1056 | register int n; |
| 1057 | { |
| 1058 | char c1, c2; |
| 1059 | |
| 1060 | if (islower(*s1)) |
| 1061 | c1 = toupper(*s1); |
| 1062 | else |
| 1063 | c1 = *s1; |
| 1064 | if (islower(*s2)) |
| 1065 | c2 = toupper(*s2); |
| 1066 | else |
| 1067 | c2 = *s2; |
| 1068 | |
| 1069 | while ( --n >= 0 && c1 == c2) { |
| 1070 | if (*s1++ == '\0') |
| 1071 | return 0; |
| 1072 | s2++; |
| 1073 | if (islower(*s1)) |
| 1074 | c1 = toupper(*s1); |
| 1075 | else |
| 1076 | c1 = *s1; |
| 1077 | if (islower(*s2)) |
| 1078 | c2 = toupper(*s2); |
| 1079 | else |
| 1080 | c2 = *s2; |
| 1081 | } |
| 1082 | return n<0 ? 0 : (c1 - c2); |
| 1083 | } |
| 1084 | /* |
| 1085 | * do chat script |
| 1086 | * occurs after local port is opened, |
| 1087 | * before 'dialing' the other machine. |
| 1088 | */ |
| 1089 | dochat(dev, flds, fd) |
| 1090 | register struct Devices *dev; |
| 1091 | char *flds[]; |
| 1092 | int fd; |
| 1093 | { |
| 1094 | register int i; |
| 1095 | register char *p; |
| 1096 | char bfr[sizeof(dev->D_argbfr)]; |
| 1097 | |
| 1098 | if (dev->D_numargs <= 5) |
| 1099 | return(0); |
| 1100 | DEBUG(4, "dochat called %d\n", dev->D_numargs); |
| 1101 | for (i = 0; i < dev->D_numargs-5; i++) { |
| 1102 | sprintf(bfr, dev->D_arg[D_CHAT+i], flds[F_PHONE]); |
| 1103 | if (strcmp(bfr, dev->D_arg[D_CHAT+i])) { |
| 1104 | p = malloc((unsigned)strlen(bfr)+1); |
| 1105 | if (p != NULL) { |
| 1106 | strcpy(p, bfr); |
| 1107 | dev->D_arg[D_CHAT+i] = p; |
| 1108 | } |
| 1109 | } |
| 1110 | } |
| 1111 | /* following is a kludge because login() arglist is a kludge */ |
| 1112 | i = login(dev->D_numargs, &dev->D_arg[D_CHAT-5], fd); |
| 1113 | /* |
| 1114 | * If login() last did a sendthem(), must pause so things can settle. |
| 1115 | * But don't bother if chat failed. |
| 1116 | */ |
| 1117 | if (i == 0 && (dev->D_numargs&01)) |
| 1118 | sleep(2); |
| 1119 | return(i); |
| 1120 | } |
| 1121 | |
| 1122 | /* |
| 1123 | * fix kill/echo/raw on line |
| 1124 | * |
| 1125 | * return codes: none |
| 1126 | */ |
| 1127 | fixmode(tty) |
| 1128 | register int tty; |
| 1129 | { |
| 1130 | #ifdef USG |
| 1131 | struct termio ttbuf; |
| 1132 | #else !USG |
| 1133 | struct sgttyb ttbuf; |
| 1134 | #endif !USG |
| 1135 | register struct sg_spds *ps; |
| 1136 | int speed; |
| 1137 | |
| 1138 | if (IsTcpIp) |
| 1139 | return; |
| 1140 | #ifdef USG |
| 1141 | ioctl(tty, TCGETA, &ttbuf); |
| 1142 | ttbuf.c_iflag = ttbuf.c_oflag = ttbuf.c_lflag = (ushort)0; |
| 1143 | speed = ttbuf.c_cflag &= (CBAUD); |
| 1144 | ttbuf.c_cflag |= (CS8|CREAD); |
| 1145 | ttbuf.c_cc[VMIN] = 6; |
| 1146 | ttbuf.c_cc[VTIME] = 1; |
| 1147 | ioctl(tty, TCSETA, &ttbuf); |
| 1148 | #else !USG |
| 1149 | ioctl(tty, TIOCGETP, &ttbuf); |
| 1150 | ttbuf.sg_flags = (ANYP | RAW); |
| 1151 | ioctl(tty, TIOCSETP, &ttbuf); |
| 1152 | speed = ttbuf.sg_ispeed; |
| 1153 | ioctl(tty, TIOCEXCL, STBNULL); |
| 1154 | #endif !USG |
| 1155 | |
| 1156 | for (ps = spds; ps->sp_val; ps++) |
| 1157 | if (ps->sp_name == speed) { |
| 1158 | linebaudrate = ps->sp_val; |
| 1159 | DEBUG(9,"Incoming baudrate is %d\n", linebaudrate); |
| 1160 | return; |
| 1161 | } |
| 1162 | if (linebaudrate < 0) { |
| 1163 | syslog(LOG_ERR, "unrecognized speed: %d", linebaudrate); |
| 1164 | cleanup(FAIL); |
| 1165 | } |
| 1166 | } |