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992de934 GM |
1 | /* |
2 | * Copyright (c) 1984-1987 by the Regents of the | |
3 | * University of California and by Gregory Glenn Minshall. | |
4 | * | |
5 | * Permission to use, copy, modify, and distribute these | |
6 | * programs and their documentation for any purpose and | |
7 | * without fee is hereby granted, provided that this | |
8 | * copyright and permission appear on all copies and | |
9 | * supporting documentation, the name of the Regents of | |
10 | * the University of California not be used in advertising | |
11 | * or publicity pertaining to distribution of the programs | |
12 | * without specific prior permission, and notice be given in | |
13 | * supporting documentation that copying and distribution is | |
14 | * by permission of the Regents of the University of California | |
15 | * and by Gregory Glenn Minshall. Neither the Regents of the | |
16 | * University of California nor Gregory Glenn Minshall make | |
17 | * representations about the suitability of this software | |
18 | * for any purpose. It is provided "as is" without | |
19 | * express or implied warranty. | |
20 | */ | |
71ac803b | 21 | |
992de934 GM |
22 | #ifndef lint |
23 | static char sccsid[] = "@(#)prt3270.c 1.8 (Berkeley) %G%"; | |
24 | #endif /* not lint */ | |
71ac803b GM |
25 | |
26 | #if defined(unix) | |
27 | #endif | |
28 | #include <stdio.h> | |
71ac803b GM |
29 | #include <ctype.h> |
30 | ||
03bae598 | 31 | #include "../general/general.h" |
e56fc5cb | 32 | |
4718d085 | 33 | #include "../api/asc_ebc.h" |
71ac803b GM |
34 | #include "../ctlr/hostctlr.h" |
35 | #include "../ctlr/screen.h" | |
906419f0 | 36 | #include "../ctlr/function.h" |
4718d085 | 37 | #include "../api/astosc.h" |
03bae598 | 38 | #include "../general/globals.h" |
71ac803b | 39 | |
906419f0 GM |
40 | #include "../ctlr/kbd.out" |
41 | ||
71ac803b GM |
42 | |
43 | int NumberColumns = 80; | |
44 | ||
45 | int direction; | |
46 | ||
47 | int column = 1; | |
48 | int indenting = 0; | |
49 | int direction = '?'; | |
50 | ||
51 | unsigned char printBuffer[200], *print = printBuffer; | |
52 | ||
53 | #define ColsLeft() (79-column) /* A little room for error */ | |
54 | ||
55 | ||
56 | void | |
57 | putSpace() | |
58 | { | |
59 | extern void Column1(); | |
60 | unsigned char *ourPrint = print; | |
61 | ||
62 | print = printBuffer; /* For mutual calls */ | |
63 | *ourPrint = 0; | |
64 | if (ColsLeft() < 0) { | |
65 | Column1(); | |
66 | } | |
67 | if (column != (indenting*8+1)) { | |
68 | putchar(' '); | |
69 | } else { | |
70 | int i; | |
71 | ||
72 | putchar(direction); | |
73 | putchar(' '); | |
74 | for (i = 0; i < indenting; i++) { | |
75 | putchar('\t'); | |
76 | } | |
77 | } | |
78 | printf("%s", printBuffer); | |
79 | column += strlen(printBuffer); | |
80 | } | |
81 | ||
82 | void | |
83 | Column1() | |
84 | { | |
85 | if (print != printBuffer) { | |
86 | putSpace(); | |
87 | } | |
88 | if (column != (indenting*8+1)) { | |
89 | putchar('\n'); | |
90 | column = indenting*8+1; | |
91 | } | |
92 | } | |
93 | ||
94 | void | |
95 | Indent() | |
96 | { | |
97 | if ((column != (indenting*8+1)) || (print != printBuffer)) { | |
98 | Column1(); | |
99 | } | |
100 | indenting++; | |
101 | column = indenting*8+1; | |
102 | } | |
103 | ||
104 | void | |
105 | Undent() | |
106 | { | |
107 | if ((column != (indenting*8+1)) || (print != printBuffer)) { | |
108 | Column1(); | |
109 | } | |
110 | indenting--; | |
111 | if (indenting < 0) { | |
112 | fflush(stdout); | |
113 | fprintf(stderr, "INTERNAL ERROR: indenting < 0.\n"); | |
114 | fflush(stderr); | |
115 | } else { | |
116 | column = indenting*8+1; | |
117 | } | |
118 | } | |
119 | ||
120 | void | |
121 | putChar(character) | |
122 | int character; | |
123 | { | |
124 | *print++ = character; | |
e993a7ea | 125 | column++; |
71ac803b GM |
126 | } |
127 | ||
128 | void | |
129 | putstr(s) | |
130 | char *s; | |
131 | { | |
132 | while (*s) { | |
133 | putChar(*s++); | |
134 | } | |
135 | } | |
136 | ||
137 | void | |
138 | put2hex(i) | |
139 | int i; | |
140 | { | |
141 | char place[40]; | |
142 | ||
143 | sprintf(place, "%02x", i); | |
144 | putstr(place); | |
145 | } | |
146 | ||
147 | ||
148 | void | |
149 | putdecimal(i) | |
150 | int i; | |
151 | { | |
152 | char place[40]; | |
153 | ||
154 | sprintf(place, "%d", i); | |
155 | putstr(place); | |
156 | } | |
157 | ||
158 | void | |
159 | puthex(i) | |
160 | int i; | |
161 | { | |
162 | char place[40]; | |
163 | ||
164 | sprintf(place, "%x", i); | |
165 | putstr(place); | |
166 | } | |
167 | ||
168 | void | |
169 | putEChar(character) | |
170 | int character; | |
171 | { | |
138011c0 | 172 | putChar(ebc_asc[character]); |
71ac803b GM |
173 | if (ColsLeft() < 10) { |
174 | Column1(); | |
175 | } | |
176 | } | |
177 | ||
178 | void | |
179 | PrintAid(i) | |
180 | int i; | |
181 | { | |
906419f0 GM |
182 | struct astosc *this; |
183 | ||
184 | for (this = &astosc[0]; this <= &astosc[highestof(astosc)]; this++) { | |
185 | if (this->function == FCN_AID) { | |
186 | int j; | |
71ac803b | 187 | |
906419f0 GM |
188 | switch (this->shiftstate) { |
189 | case 0: | |
190 | j = 0; | |
191 | break; | |
192 | case SHIFT_UPSHIFT: | |
193 | j = 1; | |
194 | break; | |
195 | case SHIFT_ALT: | |
196 | j = 2; | |
197 | break; | |
198 | case (SHIFT_UPSHIFT|SHIFT_ALT): | |
199 | j = 3; | |
200 | break; | |
201 | default: | |
202 | fprintf(stderr, "Bad shiftstate 0x%x.\n", this->shiftstate); | |
203 | exit(1); | |
204 | } | |
205 | if (hits[this->scancode].hit[j].code == i) { | |
206 | putstr(this->name); | |
207 | return; | |
208 | } | |
71ac803b GM |
209 | } |
210 | } | |
211 | ||
212 | putstr("Unknown AID 0x"); | |
213 | put2hex(i); | |
214 | } | |
215 | ||
216 | void | |
217 | PrintAddr(i) | |
218 | int i; | |
219 | { | |
220 | if (ColsLeft() < 9) { | |
221 | Column1(); | |
222 | } | |
223 | putChar('('); | |
224 | putdecimal(ScreenLine(i)); | |
225 | putChar(','); | |
226 | putdecimal(ScreenLineOffset(i)); | |
227 | putChar(')'); | |
228 | } | |
229 | ||
230 | ||
231 | /* returns the number of characters consumed */ | |
232 | int | |
233 | DataFromNetwork(buffer, count, control) | |
234 | register unsigned char *buffer; /* what the data is */ | |
235 | register int count; /* and how much there is */ | |
236 | int control; /* this buffer ended block? */ | |
237 | { | |
238 | int origCount; | |
239 | register int c; | |
240 | register int i; | |
241 | static int Command; | |
242 | static int Wcc; | |
243 | static int LastWasTerminated = 1; /* was "control" = 1 last time? */ | |
244 | ||
245 | if (count == 0) { | |
246 | Column1(); | |
247 | return 0; | |
248 | } | |
249 | ||
250 | origCount = count; | |
251 | ||
252 | if (LastWasTerminated) { | |
253 | ||
254 | if (count < 2) { | |
255 | if (count == 0) { | |
256 | fflush(stdout); | |
257 | fprintf(stderr, "Short count received from host!\n"); | |
258 | fflush(stderr); | |
259 | return(count); | |
260 | } | |
261 | Command = buffer[0]; | |
262 | switch (Command) { /* This had better be a read command */ | |
263 | case CMD_READ_MODIFIED: | |
264 | putstr("read_modified command\n"); | |
265 | break; | |
266 | case CMD_SNA_READ_MODIFIED: | |
267 | putstr("read_modified command\n"); | |
268 | break; | |
269 | case CMD_SNA_READ_MODIFIED_ALL: | |
270 | putstr("read_modified command\n"); | |
271 | break; | |
272 | case CMD_READ_BUFFER: | |
273 | putstr("read_modified command\n"); | |
274 | break; | |
275 | case CMD_SNA_READ_BUFFER: | |
276 | putstr("read_modified command\n"); | |
277 | break; | |
278 | default: | |
279 | break; | |
280 | } | |
281 | return(1); /* We consumed everything */ | |
282 | } | |
283 | Command = buffer[0]; | |
284 | Wcc = buffer[1]; | |
285 | switch (Command) { | |
286 | case CMD_ERASE_WRITE: | |
287 | putstr("erase write command "); | |
288 | break; | |
289 | case CMD_ERASE_WRITE_ALTERNATE: | |
290 | putstr("erase write alternate command "); | |
291 | break; | |
292 | case CMD_SNA_ERASE_WRITE: | |
293 | putstr("sna erase write command "); | |
294 | break; | |
295 | case CMD_SNA_ERASE_WRITE_ALTERNATE: | |
296 | putstr("erase write alternate command "); | |
297 | break; | |
298 | case CMD_ERASE_ALL_UNPROTECTED: | |
299 | putstr("erase all unprotected command "); | |
300 | break; | |
301 | case CMD_SNA_ERASE_ALL_UNPROTECTED: | |
302 | putstr("sna erase write command "); | |
303 | break; | |
304 | case CMD_WRITE: | |
305 | putstr("write command "); | |
306 | break; | |
307 | case CMD_SNA_WRITE: | |
308 | putstr("sna write command "); | |
309 | break; | |
310 | default: | |
311 | putstr("Unexpected command code 0x"); | |
312 | puthex(Command); | |
313 | putstr(" received."); | |
314 | Column1(); | |
315 | break; | |
316 | } | |
317 | putstr("WCC is 0x"); | |
318 | puthex(Wcc); | |
319 | Column1(); | |
320 | ||
321 | count -= 2; /* strip off command and wcc */ | |
322 | buffer += 2; | |
323 | ||
324 | } | |
325 | LastWasTerminated = 0; /* then, reset at end... */ | |
326 | ||
327 | while (count) { | |
328 | count--; | |
329 | c = *buffer++; | |
330 | if (IsOrder(c)) { | |
331 | /* handle an order */ | |
332 | switch (c) { | |
333 | # define Ensure(x) if (count < x) { \ | |
334 | if (!control) { \ | |
335 | return(origCount-(count+1)); \ | |
336 | } else { \ | |
337 | /* XXX - should not occur */ \ | |
338 | count = 0; \ | |
339 | break; \ | |
340 | } \ | |
341 | } | |
342 | case ORDER_SF: | |
343 | Ensure(1); | |
344 | c = *buffer++; | |
345 | count--; | |
346 | putstr("SF (0x"); | |
347 | put2hex(c); | |
348 | putstr(") "); | |
349 | break; | |
350 | case ORDER_SBA: | |
351 | Ensure(2); | |
352 | i = buffer[0]; | |
353 | c = buffer[1]; | |
354 | buffer += 2; | |
355 | count -= 2; | |
356 | putstr("SBA to "); | |
357 | PrintAddr(Addr3270(i,c)); | |
358 | putSpace(); | |
359 | break; | |
360 | case ORDER_IC: | |
361 | putstr("IC"); | |
362 | putSpace(); | |
363 | break; | |
364 | case ORDER_PT: | |
365 | putstr("PT"); | |
366 | putSpace(); | |
367 | break; | |
368 | case ORDER_RA: | |
369 | Ensure(3); | |
370 | i = Addr3270(buffer[0], buffer[1]); | |
371 | c = buffer[2]; | |
372 | buffer += 3; | |
373 | count -= 3; | |
374 | putstr("RA to "); | |
375 | PrintAddr(i); | |
376 | putstr(" of 0x"); | |
377 | put2hex(c); | |
378 | putSpace(); | |
379 | break; | |
380 | case ORDER_EUA: /* (from [here,there), ie: half open interval] */ | |
381 | Ensure(2); | |
382 | putstr("EUA to "); | |
383 | PrintAddr(Addr3270(buffer[0], buffer[1])); | |
384 | putSpace(); | |
385 | buffer += 2; | |
386 | count -= 2; | |
387 | break; | |
388 | case ORDER_YALE: /* special YALE defined order */ | |
389 | Ensure(2); /* need at least two characters */ | |
390 | putstr("YALE order"); | |
391 | putSpace(); | |
392 | break; | |
393 | default: | |
394 | putstr("UNKNOWN ORDER: 0x"); | |
395 | put2hex(c); | |
396 | putSpace(); | |
397 | break; | |
398 | } | |
399 | if (count < 0) { | |
400 | count = 0; | |
401 | } | |
402 | } else { | |
403 | /* Data comes in large clumps - take it all */ | |
404 | putstr("DATA:"); | |
405 | Indent(); | |
406 | putEChar(c); | |
407 | c = *buffer; | |
408 | while (count && !IsOrder(c)) { | |
409 | putEChar(c); | |
410 | count--; | |
411 | buffer++; | |
412 | c = *buffer; | |
413 | } | |
414 | Undent(); | |
415 | } | |
416 | } | |
417 | LastWasTerminated = control; | |
418 | return origCount - count; | |
419 | } | |
420 | ||
421 | int | |
422 | DataToNetwork(buffer, count, control) | |
423 | unsigned char *buffer; | |
424 | int count; | |
425 | int control; | |
426 | { | |
427 | #define NEED_AID 0 | |
428 | #define JUST_GOT_AID 1 | |
429 | #define DATA 2 | |
430 | #define DATA_CONTINUE 3 | |
431 | static int state = NEED_AID; | |
432 | static int aid; | |
433 | int origCount = count; | |
434 | ||
435 | if (count == 0) { | |
436 | if (control) { | |
437 | state = NEED_AID; | |
438 | } | |
439 | Column1(); | |
440 | return 0; | |
441 | } | |
442 | ||
443 | switch (state) { | |
444 | case NEED_AID: | |
445 | aid = buffer[0]; | |
446 | buffer++; | |
447 | count--; | |
448 | PrintAid(aid); | |
449 | putSpace(); | |
906419f0 | 450 | if (aid == AID_TREQ) { |
71ac803b GM |
451 | state = DATA; |
452 | } else { | |
453 | state = JUST_GOT_AID; | |
454 | } | |
455 | return origCount - count + DataToNetwork(buffer, count, control); | |
456 | case JUST_GOT_AID: | |
457 | Ensure(2); | |
458 | PrintAddr(Addr3270(buffer[0], buffer[1])); | |
459 | putSpace(); | |
460 | buffer += 2; | |
461 | count -= 2; | |
462 | state = DATA; | |
463 | return origCount - count + DataToNetwork(buffer, count, control); | |
464 | case DATA: | |
465 | case DATA_CONTINUE: | |
466 | while (count) { | |
467 | if (*buffer == ORDER_SBA) { | |
468 | if (state == DATA_CONTINUE) { | |
469 | Undent(); | |
470 | state = DATA; | |
471 | } | |
472 | putstr("SBA "); | |
473 | PrintAddr(Addr3270(buffer[1], buffer[2])); | |
474 | putSpace(); | |
475 | buffer += 3; | |
476 | count -= 3; | |
477 | } else { | |
478 | if (state == DATA) { | |
479 | putstr("DATA:"); | |
480 | Indent(); | |
481 | state = DATA_CONTINUE; | |
482 | } | |
483 | putEChar(*buffer); | |
484 | buffer++; | |
485 | count--; | |
486 | } | |
487 | } | |
488 | if (control) { | |
489 | if (state == DATA_CONTINUE) { | |
490 | Undent(); | |
491 | } | |
492 | state = NEED_AID; | |
493 | } | |
494 | return origCount-count; | |
495 | } | |
496 | } | |
497 | ||
498 | int | |
499 | GetXValue(c) | |
500 | int c; | |
501 | { | |
502 | if (!isascii(c)) { | |
503 | fflush(stdout); | |
504 | fprintf(stderr, "Non-hex digit 0x%x.\n"); | |
505 | fflush(stderr); | |
506 | return 0; | |
507 | } else { | |
508 | if (islower(c)) { | |
509 | return (c-'a')+10; | |
510 | } else if (isupper(c)) { | |
511 | return (c-'A')+10; | |
512 | } else { | |
513 | return c-'0'; | |
514 | } | |
515 | } | |
516 | } | |
517 | ||
518 | unsigned char outbound[8192], inbound[8192], | |
519 | *outnext = outbound, *innext = inbound, *p = 0; | |
520 | ||
521 | void | |
522 | termblock(old, new, control) | |
523 | int old, | |
524 | new; /* old and new directions */ | |
525 | { | |
526 | int count; | |
527 | ||
528 | if (p) { | |
529 | if (old == '<') { | |
530 | outnext = p; | |
531 | count = DataFromNetwork(outbound, outnext-outbound, control); | |
532 | if (outbound+count == outnext) { | |
533 | outnext = outbound; | |
534 | } else { | |
e56fc5cb | 535 | memcpy(outbound, outbound+count, outnext-(outbound+count)); |
71ac803b GM |
536 | outnext = outbound+count; |
537 | } | |
538 | } else { | |
539 | innext = p; | |
540 | count = DataToNetwork(inbound, innext-inbound, control); | |
541 | if (inbound+count == innext) { | |
542 | innext = inbound; | |
543 | } else { | |
e56fc5cb | 544 | memcpy(inbound, inbound+count, innext-(inbound+count)); |
71ac803b GM |
545 | innext = inbound+count; |
546 | } | |
547 | } | |
548 | } | |
549 | if (new == '<') { | |
550 | p = outnext; | |
551 | } else if (new == '>') { | |
552 | p = innext; | |
553 | } else { | |
554 | fprintf(stderr, "Bad direction character '%c'.\n", new); | |
555 | exit(1); | |
556 | } | |
557 | } | |
558 | ||
559 | main() | |
560 | { | |
561 | int location; | |
562 | int new; | |
563 | int c, c1; | |
564 | ||
e56fc5cb | 565 | memset(Orders, 0, sizeof Orders); |
71ac803b GM |
566 | Orders[ORDER_SF] = Orders[ORDER_SBA] = Orders[ORDER_IC] |
567 | = Orders[ORDER_PT] = Orders[ORDER_RA] = Orders[ORDER_EUA] | |
568 | = Orders[ORDER_YALE] = 1; | |
569 | ||
570 | while (scanf("%c 0x%x\t", &new, &location) != EOF) { | |
571 | if (new != direction) { | |
572 | termblock(direction, new, 0); | |
573 | direction = new; | |
574 | } | |
575 | while (((c = getchar()) != EOF) && (c != '\n') && (isxdigit(c))) { | |
576 | #define NORMAL 0 | |
577 | #define GOT0XFF 0xff | |
578 | static int state = NORMAL; | |
579 | ||
580 | c1 = getchar(); | |
581 | c = (GetXValue(c) << 4) + GetXValue(c1); | |
582 | switch (state) { | |
583 | case NORMAL: | |
584 | if (c == 0xff) { | |
585 | state = GOT0XFF; | |
586 | } else { | |
587 | *p++ = c; | |
588 | } | |
589 | break; | |
590 | case GOT0XFF: | |
591 | if (c == 0xef) { | |
592 | termblock(direction, direction, 1); | |
593 | } else { | |
594 | *p++ = 0xff; | |
595 | *p++ = c; | |
596 | } | |
597 | state = NORMAL; | |
598 | } | |
599 | } | |
600 | } | |
601 | return 0; | |
602 | } |