1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)utilities.c 5.3 (Berkeley) 03/22/91"; 10 #endif /* not lint */ 11 12 #define TELOPTS 13 #define TELCMDS 14 #define SLC_NAMES 15 #include <arpa/telnet.h> 16 #include <sys/types.h> 17 #include <sys/time.h> 18 19 #include <ctype.h> 20 21 #include "general.h" 22 23 #include "fdset.h" 24 25 #include "ring.h" 26 27 #include "defines.h" 28 29 #include "externs.h" 30 31 FILE *NetTrace = 0; /* Not in bss, since needs to stay */ 32 int prettydump; 33 34 /* 35 * upcase() 36 * 37 * Upcase (in place) the argument. 38 */ 39 40 void 41 upcase(argument) 42 register char *argument; 43 { 44 register int c; 45 46 while ((c = *argument) != 0) { 47 if (islower(c)) { 48 *argument = toupper(c); 49 } 50 argument++; 51 } 52 } 53 54 /* 55 * SetSockOpt() 56 * 57 * Compensate for differences in 4.2 and 4.3 systems. 58 */ 59 60 int 61 SetSockOpt(fd, level, option, yesno) 62 int fd, level, option, yesno; 63 { 64 #ifndef NOT43 65 return setsockopt(fd, level, option, 66 (char *)&yesno, sizeof yesno); 67 #else /* NOT43 */ 68 if (yesno == 0) { /* Can't do that in 4.2! */ 69 fprintf(stderr, "Error: attempt to turn off an option 0x%x.\n", 70 option); 71 return -1; 72 } 73 return setsockopt(fd, level, option, 0, 0); 74 #endif /* NOT43 */ 75 } 76 77 /* 78 * The following are routines used to print out debugging information. 79 */ 80 81 unsigned char NetTraceFile[256] = "(standard output)"; 82 83 void 84 SetNetTrace(file) 85 register char *file; 86 { 87 if (NetTrace && NetTrace != stdout) 88 fclose(NetTrace); 89 if (file && (strcmp(file, "-") != 0)) { 90 NetTrace = fopen(file, "w"); 91 if (NetTrace) { 92 strcpy((char *)NetTraceFile, file); 93 return; 94 } 95 fprintf(stderr, "Cannot open %s.\n", file); 96 } 97 NetTrace = stdout; 98 strcpy((char *)NetTraceFile, "(standard output)"); 99 } 100 101 void 102 Dump(direction, buffer, length) 103 char direction; 104 unsigned char *buffer; 105 int length; 106 { 107 # define BYTES_PER_LINE 32 108 # define min(x,y) ((x<y)? x:y) 109 unsigned char *pThis; 110 int offset; 111 extern pettydump; 112 113 offset = 0; 114 115 while (length) { 116 /* print one line */ 117 fprintf(NetTrace, "%c 0x%x\t", direction, offset); 118 pThis = buffer; 119 if (prettydump) { 120 buffer = buffer + min(length, BYTES_PER_LINE/2); 121 while (pThis < buffer) { 122 fprintf(NetTrace, "%c%.2x", 123 (((*pThis)&0xff) == 0xff) ? '*' : ' ', 124 (*pThis)&0xff); 125 pThis++; 126 } 127 length -= BYTES_PER_LINE/2; 128 offset += BYTES_PER_LINE/2; 129 } else { 130 buffer = buffer + min(length, BYTES_PER_LINE); 131 while (pThis < buffer) { 132 fprintf(NetTrace, "%.2x", (*pThis)&0xff); 133 pThis++; 134 } 135 length -= BYTES_PER_LINE; 136 offset += BYTES_PER_LINE; 137 } 138 if (NetTrace == stdout) { 139 fprintf(NetTrace, "\r\n"); 140 } else { 141 fprintf(NetTrace, "\n"); 142 } 143 if (length < 0) { 144 fflush(NetTrace); 145 return; 146 } 147 /* find next unique line */ 148 } 149 fflush(NetTrace); 150 } 151 152 153 void 154 printoption(direction, cmd, option) 155 char *direction; 156 int cmd, option; 157 { 158 if (!showoptions) 159 return; 160 if (cmd == IAC) { 161 if (TELCMD_OK(option)) 162 fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option)); 163 else 164 fprintf(NetTrace, "%s IAC %d", direction, option); 165 } else { 166 register char *fmt; 167 fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" : 168 (cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0; 169 if (fmt) { 170 fprintf(NetTrace, "%s %s ", direction, fmt); 171 if (TELOPT_OK(option)) 172 fprintf(NetTrace, "%s", TELOPT(option)); 173 else if (option == TELOPT_EXOPL) 174 fprintf(NetTrace, "EXOPL"); 175 else 176 fprintf(NetTrace, "%d", option); 177 } else 178 fprintf(NetTrace, "%s %d %d", direction, cmd, option); 179 } 180 if (NetTrace == stdout) 181 fprintf(NetTrace, "\r\n"); 182 else 183 fprintf(NetTrace, "\n"); 184 return; 185 } 186 187 void 188 optionstatus() 189 { 190 register int i; 191 extern char will_wont_resp[], do_dont_resp[]; 192 193 for (i = 0; i < 256; i++) { 194 if (do_dont_resp[i]) { 195 if (TELOPT_OK(i)) 196 printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]); 197 else if (TELCMD_OK(i)) 198 printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]); 199 else 200 printf("resp DO_DONT %d: %d\n", i, 201 do_dont_resp[i]); 202 if (my_want_state_is_do(i)) { 203 if (TELOPT_OK(i)) 204 printf("want DO %s\n", TELOPT(i)); 205 else if (TELCMD_OK(i)) 206 printf("want DO %s\n", TELCMD(i)); 207 else 208 printf("want DO %d\n", i); 209 } else { 210 if (TELOPT_OK(i)) 211 printf("want DONT %s\n", TELOPT(i)); 212 else if (TELCMD_OK(i)) 213 printf("want DONT %s\n", TELCMD(i)); 214 else 215 printf("want DONT %d\n", i); 216 } 217 } else { 218 if (my_state_is_do(i)) { 219 if (TELOPT_OK(i)) 220 printf(" DO %s\n", TELOPT(i)); 221 else if (TELCMD_OK(i)) 222 printf(" DO %s\n", TELCMD(i)); 223 else 224 printf(" DO %d\n", i); 225 } 226 } 227 if (will_wont_resp[i]) { 228 if (TELOPT_OK(i)) 229 printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]); 230 else if (TELCMD_OK(i)) 231 printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]); 232 else 233 printf("resp WILL_WONT %d: %d\n", 234 i, will_wont_resp[i]); 235 if (my_want_state_is_will(i)) { 236 if (TELOPT_OK(i)) 237 printf("want WILL %s\n", TELOPT(i)); 238 else if (TELCMD_OK(i)) 239 printf("want WILL %s\n", TELCMD(i)); 240 else 241 printf("want WILL %d\n", i); 242 } else { 243 if (TELOPT_OK(i)) 244 printf("want WONT %s\n", TELOPT(i)); 245 else if (TELCMD_OK(i)) 246 printf("want WONT %s\n", TELCMD(i)); 247 else 248 printf("want WONT %d\n", i); 249 } 250 } else { 251 if (my_state_is_will(i)) { 252 if (TELOPT_OK(i)) 253 printf(" WILL %s\n", TELOPT(i)); 254 else if (TELCMD_OK(i)) 255 printf(" WILL %s\n", TELCMD(i)); 256 else 257 printf(" WILL %d\n", i); 258 } 259 } 260 } 261 262 } 263 264 void 265 printsub(direction, pointer, length) 266 char direction; /* '<' or '>' */ 267 unsigned char *pointer; /* where suboption data sits */ 268 int length; /* length of suboption data */ 269 { 270 register int i; 271 char buf[512]; 272 extern int want_status_response; 273 274 if (showoptions || direction == 0 || 275 (want_status_response && (pointer[0] == TELOPT_STATUS))) { 276 if (direction) { 277 fprintf(NetTrace, "%s IAC SB ", 278 (direction == '<')? "RCVD":"SENT"); 279 if (length >= 3) { 280 register int j; 281 282 i = pointer[length-2]; 283 j = pointer[length-1]; 284 285 if (i != IAC || j != SE) { 286 fprintf(NetTrace, "(terminated by "); 287 if (TELOPT_OK(i)) 288 fprintf(NetTrace, "%s ", TELOPT(i)); 289 else if (TELCMD_OK(i)) 290 fprintf(NetTrace, "%s ", TELCMD(i)); 291 else 292 fprintf(NetTrace, "%d ", i); 293 if (TELOPT_OK(j)) 294 fprintf(NetTrace, "%s", TELOPT(j)); 295 else if (TELCMD_OK(j)) 296 fprintf(NetTrace, "%s", TELCMD(j)); 297 else 298 fprintf(NetTrace, "%d", j); 299 fprintf(NetTrace, ", not IAC SE!) "); 300 } 301 } 302 length -= 2; 303 } 304 if (length < 1) { 305 fprintf(NetTrace, "(Empty suboption???)"); 306 return; 307 } 308 switch (pointer[0]) { 309 case TELOPT_TTYPE: 310 fprintf(NetTrace, "TERMINAL-TYPE "); 311 switch (pointer[1]) { 312 case TELQUAL_IS: 313 fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2); 314 break; 315 case TELQUAL_SEND: 316 fprintf(NetTrace, "SEND"); 317 break; 318 default: 319 fprintf(NetTrace, 320 "- unknown qualifier %d (0x%x).", 321 pointer[1], pointer[1]); 322 } 323 break; 324 case TELOPT_TSPEED: 325 fprintf(NetTrace, "TERMINAL-SPEED"); 326 if (length < 2) { 327 fprintf(NetTrace, " (empty suboption???)"); 328 break; 329 } 330 switch (pointer[1]) { 331 case TELQUAL_IS: 332 fprintf(NetTrace, " IS "); 333 fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2); 334 break; 335 default: 336 if (pointer[1] == 1) 337 fprintf(NetTrace, " SEND"); 338 else 339 fprintf(NetTrace, " %d (unknown)", pointer[1]); 340 for (i = 2; i < length; i++) 341 fprintf(NetTrace, " ?%d?", pointer[i]); 342 break; 343 } 344 break; 345 346 case TELOPT_LFLOW: 347 fprintf(NetTrace, "TOGGLE-FLOW-CONTROL"); 348 if (length < 2) { 349 fprintf(NetTrace, " (empty suboption???)"); 350 break; 351 } 352 switch (pointer[1]) { 353 case 0: 354 fprintf(NetTrace, " OFF"); break; 355 case 1: 356 fprintf(NetTrace, " ON"); break; 357 default: 358 fprintf(NetTrace, " %d (unknown)", pointer[1]); 359 } 360 for (i = 2; i < length; i++) 361 fprintf(NetTrace, " ?%d?", pointer[i]); 362 break; 363 364 case TELOPT_NAWS: 365 fprintf(NetTrace, "NAWS"); 366 if (length < 2) { 367 fprintf(NetTrace, " (empty suboption???)"); 368 break; 369 } 370 if (length == 2) { 371 fprintf(NetTrace, " ?%d?", pointer[1]); 372 break; 373 } 374 fprintf(NetTrace, " %d %d (%d)", 375 pointer[1], pointer[2], 376 (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2]))); 377 if (length == 4) { 378 fprintf(NetTrace, " ?%d?", pointer[3]); 379 break; 380 } 381 fprintf(NetTrace, " %d %d (%d)", 382 pointer[3], pointer[4], 383 (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4]))); 384 for (i = 5; i < length; i++) 385 fprintf(NetTrace, " ?%d?", pointer[i]); 386 break; 387 388 #if defined(AUTHENTICATE) 389 case TELOPT_AUTHENTICATION: 390 fprintf(NetTrace, "AUTHENTICATION"); 391 if (length < 2) { 392 fprintf(NetTrace, " (empty suboption???)"); 393 break; 394 } 395 switch (pointer[1]) { 396 case TELQUAL_REPLY: 397 case TELQUAL_IS: 398 fprintf(NetTrace, " %s ", (pointer[1] == TELQUAL_IS) ? 399 "IS" : "REPLY"); 400 if (AUTHTYPE_NAME_OK(pointer[2])) 401 fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[2])); 402 else 403 fprintf(NetTrace, "%d ", pointer[2]); 404 if (length < 3) { 405 fprintf(NetTrace, "(partial suboption???)"); 406 break; 407 } 408 fprintf(NetTrace, "%s|%s", 409 ((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? 410 "CLIENT" : "SERVER", 411 ((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? 412 "MUTUAL" : "ONE-WAY"); 413 414 auth_printsub(&pointer[1], length - 1, buf, sizeof(buf)); 415 fprintf(NetTrace, "%s", buf); 416 break; 417 418 case TELQUAL_SEND: 419 i = 2; 420 fprintf(NetTrace, " SEND "); 421 while (i < length) { 422 if (AUTHTYPE_NAME_OK(pointer[i])) 423 fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[i])); 424 else 425 fprintf(NetTrace, "%d ", pointer[i]); 426 if (++i >= length) { 427 fprintf(NetTrace, "(partial suboption???)"); 428 break; 429 } 430 fprintf(NetTrace, "%s|%s ", 431 ((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? 432 "CLIENT" : "SERVER", 433 ((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? 434 "MUTUAL" : "ONE-WAY"); 435 ++i; 436 } 437 break; 438 439 case TELQUAL_NAME: 440 i = 2; 441 fprintf(NetTrace, " NAME \""); 442 while (i < length) 443 putc(pointer[i++], NetTrace); 444 putc('"', NetTrace); 445 break; 446 447 default: 448 for (i = 2; i < length; i++) 449 fprintf(NetTrace, " ?%d?", pointer[i]); 450 break; 451 } 452 break; 453 #endif 454 455 #if defined(ENCRYPT) 456 case TELOPT_ENCRYPT: 457 fprintf(NetTrace, "ENCRYPT"); 458 if (length < 2) { 459 fprintf(NetTrace, " (empty suboption???)"); 460 break; 461 } 462 switch (pointer[1]) { 463 case ENCRYPT_START: 464 fprintf(NetTrace, " START"); 465 break; 466 467 case ENCRYPT_END: 468 fprintf(NetTrace, " END"); 469 break; 470 471 case ENCRYPT_REQSTART: 472 fprintf(NetTrace, " REQUEST-START"); 473 break; 474 475 case ENCRYPT_REQEND: 476 fprintf(NetTrace, " REQUEST-END"); 477 break; 478 479 case ENCRYPT_IS: 480 case ENCRYPT_REPLY: 481 fprintf(NetTrace, " %s ", (pointer[1] == ENCRYPT_IS) ? 482 "IS" : "REPLY"); 483 if (length < 3) { 484 fprintf(NetTrace, " (partial suboption???)"); 485 break; 486 } 487 if (ENCTYPE_NAME_OK(pointer[2])) 488 fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[2])); 489 else 490 fprintf(NetTrace, " %d (unknown)", pointer[2]); 491 492 encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf)); 493 fprintf(NetTrace, "%s", buf); 494 break; 495 496 case ENCRYPT_SUPPORT: 497 i = 2; 498 fprintf(NetTrace, " SUPPORT "); 499 while (i < length) { 500 if (ENCTYPE_NAME_OK(pointer[i])) 501 fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[i])); 502 else 503 fprintf(NetTrace, "%d ", pointer[i]); 504 i++; 505 } 506 break; 507 508 case ENCRYPT_ENC_KEYID: 509 fprintf(NetTrace, " ENC_KEYID "); 510 goto encommon; 511 512 case ENCRYPT_DEC_KEYID: 513 fprintf(NetTrace, " DEC_KEYID "); 514 goto encommon; 515 516 default: 517 fprintf(NetTrace, " %d (unknown)", pointer[1]); 518 encommon: 519 for (i = 2; i < length; i++) 520 fprintf(NetTrace, " %d", pointer[i]); 521 break; 522 } 523 break; 524 #endif 525 526 case TELOPT_LINEMODE: 527 fprintf(NetTrace, "LINEMODE "); 528 if (length < 2) { 529 fprintf(NetTrace, " (empty suboption???)"); 530 break; 531 } 532 switch (pointer[1]) { 533 case WILL: 534 fprintf(NetTrace, "WILL "); 535 goto common; 536 case WONT: 537 fprintf(NetTrace, "WONT "); 538 goto common; 539 case DO: 540 fprintf(NetTrace, "DO "); 541 goto common; 542 case DONT: 543 fprintf(NetTrace, "DONT "); 544 common: 545 if (length < 3) { 546 fprintf(NetTrace, "(no option???)"); 547 break; 548 } 549 switch (pointer[2]) { 550 case LM_FORWARDMASK: 551 fprintf(NetTrace, "Forward Mask"); 552 for (i = 3; i < length; i++) 553 fprintf(NetTrace, " %x", pointer[i]); 554 break; 555 default: 556 fprintf(NetTrace, "%d (unknown)", pointer[2]); 557 for (i = 3; i < length; i++) 558 fprintf(NetTrace, " %d", pointer[i]); 559 break; 560 } 561 break; 562 563 case LM_SLC: 564 fprintf(NetTrace, "SLC"); 565 for (i = 2; i < length - 2; i += 3) { 566 if (SLC_NAME_OK(pointer[i+SLC_FUNC])) 567 fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC])); 568 else 569 fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]); 570 switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { 571 case SLC_NOSUPPORT: 572 fprintf(NetTrace, " NOSUPPORT"); break; 573 case SLC_CANTCHANGE: 574 fprintf(NetTrace, " CANTCHANGE"); break; 575 case SLC_VARIABLE: 576 fprintf(NetTrace, " VARIABLE"); break; 577 case SLC_DEFAULT: 578 fprintf(NetTrace, " DEFAULT"); break; 579 } 580 fprintf(NetTrace, "%s%s%s", 581 pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", 582 pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", 583 pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); 584 if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| 585 SLC_FLUSHOUT| SLC_LEVELBITS)) 586 fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]); 587 fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]); 588 if ((pointer[i+SLC_VALUE] == IAC) && 589 (pointer[i+SLC_VALUE+1] == IAC)) 590 i++; 591 } 592 for (; i < length; i++) 593 fprintf(NetTrace, " ?%d?", pointer[i]); 594 break; 595 596 case LM_MODE: 597 fprintf(NetTrace, "MODE "); 598 if (length < 3) { 599 fprintf(NetTrace, "(no mode???)"); 600 break; 601 } 602 { 603 char tbuf[64]; 604 sprintf(tbuf, "%s%s%s%s%s", 605 pointer[2]&MODE_EDIT ? "|EDIT" : "", 606 pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "", 607 pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", 608 pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", 609 pointer[2]&MODE_ACK ? "|ACK" : ""); 610 fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0"); 611 } 612 if (pointer[2]&~(MODE_MASK)) 613 fprintf(NetTrace, " (0x%x)", pointer[2]); 614 for (i = 3; i < length; i++) 615 fprintf(NetTrace, " ?0x%x?", pointer[i]); 616 break; 617 default: 618 fprintf(NetTrace, "%d (unknown)", pointer[1]); 619 for (i = 2; i < length; i++) 620 fprintf(NetTrace, " %d", pointer[i]); 621 } 622 break; 623 624 case TELOPT_STATUS: { 625 register char *cp; 626 register int j, k; 627 628 fprintf(NetTrace, "STATUS"); 629 630 switch (pointer[1]) { 631 default: 632 if (pointer[1] == TELQUAL_SEND) 633 fprintf(NetTrace, " SEND"); 634 else 635 fprintf(NetTrace, " %d (unknown)", pointer[1]); 636 for (i = 2; i < length; i++) 637 fprintf(NetTrace, " ?%d?", pointer[i]); 638 break; 639 case TELQUAL_IS: 640 if (--want_status_response < 0) 641 want_status_response = 0; 642 if (NetTrace == stdout) 643 fprintf(NetTrace, " IS\r\n"); 644 else 645 fprintf(NetTrace, " IS\n"); 646 647 for (i = 2; i < length; i++) { 648 switch(pointer[i]) { 649 case DO: cp = "DO"; goto common2; 650 case DONT: cp = "DONT"; goto common2; 651 case WILL: cp = "WILL"; goto common2; 652 case WONT: cp = "WONT"; goto common2; 653 common2: 654 i++; 655 if (TELOPT_OK((int)pointer[i])) 656 fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i])); 657 else 658 fprintf(NetTrace, " %s %d", cp, pointer[i]); 659 660 if (NetTrace == stdout) 661 fprintf(NetTrace, "\r\n"); 662 else 663 fprintf(NetTrace, "\n"); 664 break; 665 666 case SB: 667 fprintf(NetTrace, " SB "); 668 i++; 669 j = k = i; 670 while (j < length) { 671 if (pointer[j] == SE) { 672 if (j+1 == length) 673 break; 674 if (pointer[j+1] == SE) 675 j++; 676 else 677 break; 678 } 679 pointer[k++] = pointer[j++]; 680 } 681 printsub(0, &pointer[i], k - i); 682 if (i < length) { 683 fprintf(NetTrace, " SE"); 684 i = j; 685 } else 686 i = j - 1; 687 688 if (NetTrace == stdout) 689 fprintf(NetTrace, "\r\n"); 690 else 691 fprintf(NetTrace, "\n"); 692 693 break; 694 695 default: 696 fprintf(NetTrace, " %d", pointer[i]); 697 break; 698 } 699 } 700 break; 701 } 702 break; 703 } 704 705 case TELOPT_XDISPLOC: 706 fprintf(NetTrace, "X-DISPLAY-LOCATION "); 707 switch (pointer[1]) { 708 case TELQUAL_IS: 709 fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2); 710 break; 711 case TELQUAL_SEND: 712 fprintf(NetTrace, "SEND"); 713 break; 714 default: 715 fprintf(NetTrace, "- unknown qualifier %d (0x%x).", 716 pointer[1], pointer[1]); 717 } 718 break; 719 720 case TELOPT_ENVIRON: 721 fprintf(NetTrace, "ENVIRON "); 722 switch (pointer[1]) { 723 case TELQUAL_IS: 724 fprintf(NetTrace, "IS "); 725 goto env_common; 726 case TELQUAL_SEND: 727 fprintf(NetTrace, "SEND "); 728 goto env_common; 729 case TELQUAL_INFO: 730 fprintf(NetTrace, "INFO "); 731 env_common: 732 { 733 register int noquote = 2; 734 for (i = 2; i < length; i++ ) { 735 switch (pointer[i]) { 736 case ENV_VAR: 737 if (pointer[1] == TELQUAL_SEND) 738 goto def_case; 739 fprintf(NetTrace, "\" VAR " + noquote); 740 noquote = 2; 741 break; 742 743 case ENV_VALUE: 744 fprintf(NetTrace, "\" VALUE " + noquote); 745 noquote = 2; 746 break; 747 748 case ENV_ESC: 749 fprintf(NetTrace, "\" ESC " + noquote); 750 noquote = 2; 751 break; 752 753 default: 754 def_case: 755 if (isprint(pointer[i]) && pointer[i] != '"') { 756 if (noquote) { 757 putc('"', NetTrace); 758 noquote = 0; 759 } 760 putc(pointer[i], NetTrace); 761 } else { 762 fprintf(NetTrace, "\" %03o " + noquote, 763 pointer[i]); 764 noquote = 2; 765 } 766 break; 767 } 768 } 769 if (!noquote) 770 putc('"', NetTrace); 771 break; 772 } 773 } 774 break; 775 776 default: 777 if (TELOPT_OK(pointer[0])) 778 fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0])); 779 else 780 fprintf(NetTrace, "%d (unknown)", pointer[i]); 781 for (i = 1; i < length; i++) 782 fprintf(NetTrace, " %d", pointer[i]); 783 break; 784 } 785 if (direction) { 786 if (NetTrace == stdout) 787 fprintf(NetTrace, "\r\n"); 788 else 789 fprintf(NetTrace, "\n"); 790 } 791 } 792 } 793 794 /* EmptyTerminal - called to make sure that the terminal buffer is empty. 795 * Note that we consider the buffer to run all the 796 * way to the kernel (thus the select). 797 */ 798 799 void 800 EmptyTerminal() 801 { 802 #if defined(unix) 803 fd_set o; 804 805 FD_ZERO(&o); 806 #endif /* defined(unix) */ 807 808 if (TTYBYTES() == 0) { 809 #if defined(unix) 810 FD_SET(tout, &o); 811 (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, 812 (struct timeval *) 0); /* wait for TTLOWAT */ 813 #endif /* defined(unix) */ 814 } else { 815 while (TTYBYTES()) { 816 (void) ttyflush(0); 817 #if defined(unix) 818 FD_SET(tout, &o); 819 (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, 820 (struct timeval *) 0); /* wait for TTLOWAT */ 821 #endif /* defined(unix) */ 822 } 823 } 824 } 825 826 void 827 SetForExit() 828 { 829 setconnmode(0); 830 #if defined(TN3270) 831 if (In3270) { 832 Finish3270(); 833 } 834 #else /* defined(TN3270) */ 835 do { 836 (void)telrcv(); /* Process any incoming data */ 837 EmptyTerminal(); 838 } while (ring_full_count(&netiring)); /* While there is any */ 839 #endif /* defined(TN3270) */ 840 setcommandmode(); 841 fflush(stdout); 842 fflush(stderr); 843 #if defined(TN3270) 844 if (In3270) { 845 StopScreen(1); 846 } 847 #endif /* defined(TN3270) */ 848 setconnmode(0); 849 EmptyTerminal(); /* Flush the path to the tty */ 850 setcommandmode(); 851 } 852 853 void 854 Exit(returnCode) 855 int returnCode; 856 { 857 SetForExit(); 858 exit(returnCode); 859 } 860 861 void 862 ExitString(string, returnCode) 863 char *string; 864 int returnCode; 865 { 866 SetForExit(); 867 fwrite(string, 1, strlen(string), stderr); 868 exit(returnCode); 869 } 870