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 5.2 (Berkeley) 03/01/91"; 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[256]; 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 default: 440 for (i = 2; i < length; i++) 441 fprintf(NetTrace, " ?%d?", pointer[i]); 442 break; 443 } 444 break; 445 #endif 446 447 #if defined(ENCRYPT) 448 case TELOPT_ENCRYPT: 449 fprintf(NetTrace, "ENCRYPT"); 450 if (length < 2) { 451 fprintf(NetTrace, " (empty suboption???)"); 452 break; 453 } 454 switch (pointer[1]) { 455 case ENCRYPT_START: 456 fprintf(NetTrace, " START"); 457 break; 458 459 case ENCRYPT_END: 460 fprintf(NetTrace, " END"); 461 break; 462 463 case ENCRYPT_REQSTART: 464 fprintf(NetTrace, " REQUEST-START"); 465 break; 466 467 case ENCRYPT_REQEND: 468 fprintf(NetTrace, " REQUEST-END"); 469 break; 470 471 case ENCRYPT_IS: 472 case ENCRYPT_REPLY: 473 fprintf(NetTrace, " %s ", (pointer[1] == ENCRYPT_IS) ? 474 "IS" : "REPLY"); 475 if (length < 3) { 476 fprintf(NetTrace, " (partial suboption???)"); 477 break; 478 } 479 if (ENCTYPE_NAME_OK(pointer[2])) 480 fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[2])); 481 else 482 fprintf(NetTrace, " %d (unknown)", pointer[2]); 483 484 encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf)); 485 fprintf(NetTrace, "%s", buf); 486 break; 487 488 case ENCRYPT_SUPPORT: 489 i = 2; 490 fprintf(NetTrace, " SUPPORT "); 491 while (i < length) { 492 if (ENCTYPE_NAME_OK(pointer[i])) 493 fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[i])); 494 else 495 fprintf(NetTrace, "%d ", pointer[i]); 496 i++; 497 } 498 break; 499 500 default: 501 fprintf(NetTrace, "%d (unknown)", pointer[1]); 502 for (i = 2; i < length; i++) 503 fprintf(NetTrace, " %d", pointer[i]); 504 break; 505 } 506 break; 507 #endif 508 509 case TELOPT_LINEMODE: 510 fprintf(NetTrace, "LINEMODE "); 511 if (length < 2) { 512 fprintf(NetTrace, " (empty suboption???)"); 513 break; 514 } 515 switch (pointer[1]) { 516 case WILL: 517 fprintf(NetTrace, "WILL "); 518 goto common; 519 case WONT: 520 fprintf(NetTrace, "WONT "); 521 goto common; 522 case DO: 523 fprintf(NetTrace, "DO "); 524 goto common; 525 case DONT: 526 fprintf(NetTrace, "DONT "); 527 common: 528 if (length < 3) { 529 fprintf(NetTrace, "(no option???)"); 530 break; 531 } 532 switch (pointer[2]) { 533 case LM_FORWARDMASK: 534 fprintf(NetTrace, "Forward Mask"); 535 for (i = 3; i < length; i++) 536 fprintf(NetTrace, " %x", pointer[i]); 537 break; 538 default: 539 fprintf(NetTrace, "%d (unknown)", pointer[2]); 540 for (i = 3; i < length; i++) 541 fprintf(NetTrace, " %d", pointer[i]); 542 break; 543 } 544 break; 545 546 case LM_SLC: 547 fprintf(NetTrace, "SLC"); 548 for (i = 2; i < length - 2; i += 3) { 549 if (SLC_NAME_OK(pointer[i+SLC_FUNC])) 550 fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC])); 551 else 552 fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]); 553 switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { 554 case SLC_NOSUPPORT: 555 fprintf(NetTrace, " NOSUPPORT"); break; 556 case SLC_CANTCHANGE: 557 fprintf(NetTrace, " CANTCHANGE"); break; 558 case SLC_VARIABLE: 559 fprintf(NetTrace, " VARIABLE"); break; 560 case SLC_DEFAULT: 561 fprintf(NetTrace, " DEFAULT"); break; 562 } 563 fprintf(NetTrace, "%s%s%s", 564 pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", 565 pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", 566 pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); 567 if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| 568 SLC_FLUSHOUT| SLC_LEVELBITS)) 569 fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]); 570 fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]); 571 if ((pointer[i+SLC_VALUE] == IAC) && 572 (pointer[i+SLC_VALUE+1] == IAC)) 573 i++; 574 } 575 for (; i < length; i++) 576 fprintf(NetTrace, " ?%d?", pointer[i]); 577 break; 578 579 case LM_MODE: 580 fprintf(NetTrace, "MODE "); 581 if (length < 3) { 582 fprintf(NetTrace, "(no mode???)"); 583 break; 584 } 585 { 586 char tbuf[64]; 587 sprintf(tbuf, "%s%s%s%s%s", 588 pointer[2]&MODE_EDIT ? "|EDIT" : "", 589 pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "", 590 pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", 591 pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", 592 pointer[2]&MODE_ACK ? "|ACK" : ""); 593 fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0"); 594 } 595 if (pointer[2]&~(MODE_MASK)) 596 fprintf(NetTrace, " (0x%x)", pointer[2]); 597 for (i = 3; i < length; i++) 598 fprintf(NetTrace, " ?0x%x?", pointer[i]); 599 break; 600 default: 601 fprintf(NetTrace, "%d (unknown)", pointer[1]); 602 for (i = 2; i < length; i++) 603 fprintf(NetTrace, " %d", pointer[i]); 604 } 605 break; 606 607 case TELOPT_STATUS: { 608 register char *cp; 609 register int j, k; 610 611 fprintf(NetTrace, "STATUS"); 612 613 switch (pointer[1]) { 614 default: 615 if (pointer[1] == TELQUAL_SEND) 616 fprintf(NetTrace, " SEND"); 617 else 618 fprintf(NetTrace, " %d (unknown)", pointer[1]); 619 for (i = 2; i < length; i++) 620 fprintf(NetTrace, " ?%d?", pointer[i]); 621 break; 622 case TELQUAL_IS: 623 if (--want_status_response < 0) 624 want_status_response = 0; 625 if (NetTrace == stdout) 626 fprintf(NetTrace, " IS\r\n"); 627 else 628 fprintf(NetTrace, " IS\n"); 629 630 for (i = 2; i < length; i++) { 631 switch(pointer[i]) { 632 case DO: cp = "DO"; goto common2; 633 case DONT: cp = "DONT"; goto common2; 634 case WILL: cp = "WILL"; goto common2; 635 case WONT: cp = "WONT"; goto common2; 636 common2: 637 i++; 638 if (TELOPT_OK((int)pointer[i])) 639 fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i])); 640 else 641 fprintf(NetTrace, " %s %d", cp, pointer[i]); 642 643 if (NetTrace == stdout) 644 fprintf(NetTrace, "\r\n"); 645 else 646 fprintf(NetTrace, "\n"); 647 break; 648 649 case SB: 650 fprintf(NetTrace, " SB "); 651 i++; 652 j = k = i; 653 while (j < length) { 654 if (pointer[j] == SE) { 655 if (j+1 == length) 656 break; 657 if (pointer[j+1] == SE) 658 j++; 659 else 660 break; 661 } 662 pointer[k++] = pointer[j++]; 663 } 664 printsub(0, &pointer[i], k - i); 665 if (i < length) { 666 fprintf(NetTrace, " SE"); 667 i = j; 668 } else 669 i = j - 1; 670 671 if (NetTrace == stdout) 672 fprintf(NetTrace, "\r\n"); 673 else 674 fprintf(NetTrace, "\n"); 675 676 break; 677 678 default: 679 fprintf(NetTrace, " %d", pointer[i]); 680 break; 681 } 682 } 683 break; 684 } 685 break; 686 } 687 688 case TELOPT_XDISPLOC: 689 fprintf(NetTrace, "X-DISPLAY-LOCATION "); 690 switch (pointer[1]) { 691 case TELQUAL_IS: 692 fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2); 693 break; 694 case TELQUAL_SEND: 695 fprintf(NetTrace, "SEND"); 696 break; 697 default: 698 fprintf(NetTrace, "- unknown qualifier %d (0x%x).", 699 pointer[1], pointer[1]); 700 } 701 break; 702 703 case TELOPT_ENVIRON: 704 fprintf(NetTrace, "ENVIRON "); 705 switch (pointer[1]) { 706 case TELQUAL_IS: 707 fprintf(NetTrace, "IS "); 708 goto env_common; 709 case TELQUAL_SEND: 710 fprintf(NetTrace, "SEND "); 711 goto env_common; 712 case TELQUAL_INFO: 713 fprintf(NetTrace, "INFO "); 714 env_common: 715 { 716 register int noquote = 2; 717 for (i = 2; i < length; i++ ) { 718 switch (pointer[i]) { 719 case ENV_VAR: 720 if (pointer[1] == TELQUAL_SEND) 721 goto def_case; 722 fprintf(NetTrace, "\" VAR " + noquote); 723 noquote = 2; 724 break; 725 726 case ENV_VALUE: 727 fprintf(NetTrace, "\" VALUE " + noquote); 728 noquote = 2; 729 break; 730 731 case ENV_ESC: 732 fprintf(NetTrace, "\" ESC " + noquote); 733 noquote = 2; 734 break; 735 736 default: 737 def_case: 738 if (isprint(pointer[i]) && pointer[i] != '"') { 739 if (noquote) { 740 putc('"', NetTrace); 741 noquote = 0; 742 } 743 putc(pointer[i], NetTrace); 744 } else { 745 fprintf(NetTrace, "\" %03o " + noquote, 746 pointer[i]); 747 noquote = 2; 748 } 749 break; 750 } 751 } 752 if (!noquote) 753 putc('"', NetTrace); 754 break; 755 } 756 } 757 break; 758 759 default: 760 if (TELOPT_OK(pointer[0])) 761 fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0])); 762 else 763 fprintf(NetTrace, "%d (unknown)", pointer[i]); 764 for (i = 1; i < length; i++) 765 fprintf(NetTrace, " %d", pointer[i]); 766 break; 767 } 768 if (direction) { 769 if (NetTrace == stdout) 770 fprintf(NetTrace, "\r\n"); 771 else 772 fprintf(NetTrace, "\n"); 773 } 774 } 775 } 776 777 /* EmptyTerminal - called to make sure that the terminal buffer is empty. 778 * Note that we consider the buffer to run all the 779 * way to the kernel (thus the select). 780 */ 781 782 void 783 EmptyTerminal() 784 { 785 #if defined(unix) 786 fd_set o; 787 788 FD_ZERO(&o); 789 #endif /* defined(unix) */ 790 791 if (TTYBYTES() == 0) { 792 #if defined(unix) 793 FD_SET(tout, &o); 794 (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, 795 (struct timeval *) 0); /* wait for TTLOWAT */ 796 #endif /* defined(unix) */ 797 } else { 798 while (TTYBYTES()) { 799 (void) ttyflush(0); 800 #if defined(unix) 801 FD_SET(tout, &o); 802 (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, 803 (struct timeval *) 0); /* wait for TTLOWAT */ 804 #endif /* defined(unix) */ 805 } 806 } 807 } 808 809 void 810 SetForExit() 811 { 812 setconnmode(0); 813 #if defined(TN3270) 814 if (In3270) { 815 Finish3270(); 816 } 817 #else /* defined(TN3270) */ 818 do { 819 (void)telrcv(); /* Process any incoming data */ 820 EmptyTerminal(); 821 } while (ring_full_count(&netiring)); /* While there is any */ 822 #endif /* defined(TN3270) */ 823 setcommandmode(); 824 fflush(stdout); 825 fflush(stderr); 826 #if defined(TN3270) 827 if (In3270) { 828 StopScreen(1); 829 } 830 #endif /* defined(TN3270) */ 831 setconnmode(0); 832 EmptyTerminal(); /* Flush the path to the tty */ 833 setcommandmode(); 834 } 835 836 void 837 Exit(returnCode) 838 int returnCode; 839 { 840 SetForExit(); 841 exit(returnCode); 842 } 843 844 void 845 ExitString(string, returnCode) 846 char *string; 847 int returnCode; 848 { 849 SetForExit(); 850 fwrite(string, 1, strlen(string), stderr); 851 exit(returnCode); 852 } 853