source: trunk/dll/avl.c@ 251

Last change on this file since 251 was 251, checked in by root, 20 years ago

SBoxDlgProc: avoid dereferencing NULL signature
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File size: 16.7 KB
Line 
1
2/***********************************************************************
3
4 $Id: avl.c 251 2005-08-16 15:12:48Z root $
5
6 archiver.bb2 search, load, save and date parse
7
8 Copyright (c) 1993, 1998 M. Kimes
9 Copyright (c) 2004, 2005 Steven H.Levine
10
11 01 Aug 04 SHL Rework lstrip/rstrip usage
12 13 Aug 05 SHL Beautify with indent
13 13 Aug 05 SHL find_type: correct no sig exists bypass logic
14 13 Aug 05 SHL SBoxDlgProc: avoid dereferencing NULL signature
15
16***********************************************************************/
17
18#define INCL_WIN
19#define INCL_DOS
20#include <os2.h>
21
22#include <stdlib.h>
23#include <stdio.h>
24#include <string.h>
25#include <share.h>
26#include <ctype.h>
27
28#include "fm3dll.h"
29#include "fm3dlg.h"
30#include "fm3str.h"
31
32BOOL loadedarcs;
33
34#pragma alloc_text(MISC9,quick_find_type,find_type)
35
36ARC_TYPE *quick_find_type(CHAR * filespec, ARC_TYPE * topsig)
37{
38 ARC_TYPE *info, *found = NULL;
39 CHAR *p;
40
41 if (!loadedarcs)
42 load_archivers();
43 p = strrchr(filespec, '.');
44 if (p)
45 {
46 p++;
47 info = (topsig) ? topsig : arcsighead;
48 while (info)
49 {
50 if (info -> ext &&
51 *(info -> ext) &&
52 !stricmp(p, info -> ext))
53 {
54 found = find_type(filespec, topsig);
55 break;
56 }
57 info = info -> next;
58 }
59 }
60 return found;
61}
62
63ARC_TYPE *find_type(CHAR * filespec, ARC_TYPE * topsig)
64{
65 HFILE handle;
66 ULONG action;
67 ULONG len;
68 ULONG l;
69 ARC_TYPE *info;
70 CHAR *p;
71 CHAR buffer[80];
72
73 if (!loadedarcs)
74 load_archivers();
75 if (!topsig)
76 topsig = arcsighead;
77 DosError(FERR_DISABLEHARDERR);
78 if (DosOpen(filespec,
79 &handle,
80 &action,
81 0L,
82 0L,
83 OPEN_ACTION_FAIL_IF_NEW |
84 OPEN_ACTION_OPEN_IF_EXISTS,
85 OPEN_FLAGS_FAIL_ON_ERROR |
86 OPEN_FLAGS_NOINHERIT |
87 OPEN_FLAGS_RANDOMSEQUENTIAL |
88 OPEN_SHARE_DENYNONE |
89 OPEN_ACCESS_READONLY,
90 0L))
91 return NULL;
92 // Scan signatures
93 for (info = topsig; info; info = info -> next)
94 {
95 if (!info -> signature || !*info -> signature)
96 {
97 // No signature -- check extension
98 p = strrchr(filespec, '.');
99 if (p)
100 {
101 p++;
102 if (info -> ext &&
103 *(info -> ext) &&
104 !stricmp(p, info -> ext))
105 break; // Matched
106 }
107 continue; // Next sig
108 }
109 // Try signature match
110 l = strlen(info -> signature);
111 l = min(l, 79);
112 if (!DosChgFilePtr(handle,
113 abs(info -> file_offset),
114 (info -> file_offset >= 0L) ?
115 FILE_BEGIN :
116 FILE_END,
117 &len))
118 {
119 if (!DosRead(handle,
120 buffer,
121 l,
122 &len) &&
123 len == l)
124 {
125 if (!memcmp(info -> signature,
126 buffer,
127 l))
128 break; // Matched
129 }
130 }
131 } // for
132 DosClose(handle); /* Either way, we're done for now */
133 return info; /* return signature, if any */
134}
135
136#pragma alloc_text(AVL,load_archivers)
137
138INT load_archivers(VOID)
139{
140 FILE *handle;
141 CHAR s[257], *p;
142 ARC_TYPE *info = NULL, *last = NULL;
143 INT numlines = NUMLINES, x;
144
145 loadedarcs = TRUE;
146 DosEnterCritSec();
147 p = searchpath(GetPString(IDS_ARCHIVERBB2));
148 if (!p || !*p)
149 {
150 DosExitCritSec();
151 return -1;
152 }
153 handle = _fsopen(p, "r", SH_DENYWR);
154 DosExitCritSec();
155 if (!handle)
156 return -2;
157 strcpy(archiverbb2, p);
158 if (!fgets(s, 256, handle))
159 {
160 fclose(handle);
161 return -3;
162 }
163 p = strchr(s, ';');
164 if (p)
165 *p = 0;
166 bstripcr(s);
167 if (*s)
168 numlines = atoi(s);
169 if (!*s || numlines < NUMLINES)
170 return -3;
171 while (!feof(handle))
172 {
173 if (!fgets(s, 256, handle))
174 break;
175 p = strchr(s, ';');
176 if (p)
177 *p = 0; // Chop comment
178
179 bstripcr(s);
180 if (*s)
181 {
182 info = malloc(sizeof(ARC_TYPE));
183 if (!info)
184 break;
185 memset(info, 0, sizeof(ARC_TYPE));
186 if (*s)
187 info -> id = strdup(s);
188 else
189 info -> id = NULL;
190 if (!fgets(s, 256, handle))
191 break;
192 p = strchr(s, ';');
193 if (p)
194 *p = 0;
195 bstripcr(s);
196 if (*s)
197 info -> ext = strdup(s);
198 else
199 info -> ext = NULL;
200 if (!fgets(s, 256, handle))
201 break;
202 p = strchr(s, ';');
203 if (p)
204 *p = 0;
205 info -> file_offset = atol(s);
206 if (!fgets(s, 256, handle))
207 break;
208 p = strchr(s, ';');
209 if (p)
210 *p = 0;
211 bstripcr(s);
212 if (*s)
213 info -> list = strdup(s);
214 else
215 info -> list = NULL;
216 if (!info -> list)
217 break;
218 if (!fgets(s, 256, handle))
219 break;
220 p = strchr(s, ';');
221 if (p)
222 *p = 0;
223 bstripcr(s);
224 if (*s)
225 info -> extract = strdup(s);
226 else
227 info -> extract = NULL;
228 if (!fgets(s, 256, handle))
229 break;
230 p = strchr(s, ';');
231 if (p)
232 *p = 0;
233 bstripcr(s);
234 if (*s)
235 info -> exwdirs = strdup(s);
236 else
237 info -> exwdirs = NULL;
238 if (!fgets(s, 256, handle))
239 break;
240 p = strchr(s, ';');
241 if (p)
242 *p = 0;
243 bstripcr(s);
244 if (*s)
245 info -> test = strdup(s);
246 else
247 info -> test = NULL;
248 if (!fgets(s, 256, handle))
249 break;
250 p = strchr(s, ';');
251 if (p)
252 *p = 0;
253 bstripcr(s);
254 if (*s)
255 info -> create = strdup(s);
256 else
257 info -> create = NULL;
258 if (!fgets(s, 256, handle))
259 break;
260 p = strchr(s, ';');
261 if (p)
262 *p = 0; // Chop comment
263
264 bstripcr(s);
265 if (*s)
266 info -> createwdirs = strdup(s);
267 else
268 info -> createwdirs = NULL;
269 if (!fgets(s, 256, handle))
270 break;
271 p = strchr(s, ';');
272 if (p)
273 *p = 0;
274 bstripcr(s);
275 if (*s)
276 info -> createrecurse = strdup(s);
277 else
278 info -> createrecurse = NULL;
279 if (!fgets(s, 256, handle))
280 break;
281 p = strchr(s, ';');
282 if (p)
283 *p = 0;
284 bstripcr(s);
285 if (*s)
286 info -> move = strdup(s);
287 else
288 info -> move = NULL;
289 if (!fgets(s, 256, handle))
290 break;
291 p = strchr(s, ';');
292 if (p)
293 *p = 0;
294 bstripcr(s);
295 if (*s)
296 info -> movewdirs = strdup(s);
297 else
298 info -> movewdirs = NULL;
299 if (!fgets(s, 256, handle))
300 break;
301 p = strchr(s, ';');
302 if (p)
303 *p = 0;
304 bstripcr(s);
305 info -> delete = strdup(s);
306 if (!fgets(s, 256, handle))
307 break;
308 stripcr(s);
309 literal(s);
310 if (*s)
311 {
312 info -> signature = strdup(s);
313 if (!info -> signature)
314 break;
315 }
316 else
317 info -> signature = NULL;
318 if (!fgets(s, 256, handle))
319 break;
320 stripcr(s);
321 info -> startlist = strdup(s);
322 if (!fgets(s, 256, handle))
323 break;
324 stripcr(s);
325 if (*s)
326 info -> endlist = strdup(s);
327 else
328 info -> endlist = NULL;
329 if (!fgets(s, 256, handle))
330 break;
331 p = strchr(s, ';');
332 if (p)
333 *p = 0;
334 info -> osizepos = atoi(s);
335 if (!fgets(s, 256, handle))
336 break;
337 p = strchr(s, ';');
338 if (p)
339 *p = 0;
340 info -> nsizepos = atoi(s);
341 if (!fgets(s, 256, handle))
342 break;
343 p = strchr(s, ';');
344 if (p)
345 *p = 0;
346 info -> fdpos = atoi(s);
347 p = strchr(s, ',');
348 if (p)
349 {
350 p++;
351 info -> datetype = atoi(p);
352 }
353 if (!fgets(s, 256, handle))
354 break;
355 p = strchr(s, ';');
356 if (p)
357 *p = 0;
358 info -> fdflds = atoi(s);
359 if (!fgets(s, 256, handle))
360 break;
361 p = strchr(s, ';');
362 if (p)
363 *p = 0;
364 info -> fnpos = atoi(s);
365 p = strchr(s, ',');
366 if (p)
367 {
368 p++;
369 info -> nameislast = (BOOL) (*p && atol(p) == 0) ? FALSE : TRUE;
370 p = strchr(p, ',');
371 if (p)
372 {
373 p++;
374 info -> nameisnext = (BOOL) (*p && atol(p) == 0) ? FALSE : TRUE;
375 p = strchr(p, ',');
376 if (p)
377 {
378 p++;
379 info -> nameisfirst = (BOOL) (*p && atol(p) == 0) ? FALSE : TRUE;
380 }
381 }
382 }
383 for (x = NUMLINES; x < numlines; x++)
384 {
385 if (!fgets(s, 256, handle))
386 break;
387 }
388 info -> next = NULL;
389 if (!arcsighead)
390 {
391 arcsighead = last = info;
392 info -> prev = NULL;
393 }
394 else
395 {
396 last -> next = info;
397 info -> prev = last;
398 last = info;
399 }
400 if (info -> extract &&
401 !*info -> extract)
402 {
403 free(info -> extract);
404 info -> extract = NULL;
405 }
406 }
407 info = NULL;
408 }
409 fclose(handle);
410 if (info)
411 {
412 if (info -> id)
413 free(info -> id);
414 if (info -> ext)
415 free(info -> ext);
416 if (info -> list)
417 free(info -> list);
418 if (info -> extract)
419 free(info -> extract);
420 if (info -> create)
421 free(info -> create);
422 if (info -> move)
423 free(info -> move);
424 if (info -> delete)
425 free(info -> delete);
426 if (info -> signature)
427 free(info -> signature);
428 if (info -> startlist)
429 free(info -> startlist);
430 if (info -> endlist)
431 free(info -> endlist);
432 if (info -> exwdirs)
433 free(info -> exwdirs);
434 if (info -> test)
435 free(info -> test);
436 if (info -> createrecurse)
437 free(info -> createrecurse);
438 if (info -> createwdirs)
439 free(info -> createwdirs);
440 if (info -> movewdirs)
441 free(info -> movewdirs);
442 }
443 if (!arcsighead)
444 return -4;
445 return 0;
446}
447
448#pragma alloc_text(FMARCHIVE,SBoxDlgProc)
449
450MRESULT EXPENTRY SBoxDlgProc(HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2)
451{
452 /* dlg proc that allows selecting an archiver entry */
453
454 ARC_TYPE **info, *temp, *test;
455 SHORT sSelect, x;
456 CHAR text[256];
457
458 switch (msg)
459 {
460 case WM_INITDLG:
461 if (!loadedarcs)
462 load_archivers();
463 if (!(ARC_TYPE **) mp2)
464 {
465 DosBeep(100, 100);
466 WinDismissDlg(hwnd, 0);
467 break;
468 }
469 info = (ARC_TYPE **) mp2;
470 if (*info)
471 *info = arcsighead;
472 WinSetWindowPtr(hwnd, 0L, (PVOID) info);
473 temp = arcsighead;
474 WinSendDlgItemMsg(hwnd, ASEL_LISTBOX, LM_DELETEALL, MPVOID, MPVOID);
475 /* this loop fills the listbox */
476 {
477 BOOL found = FALSE;
478
479 while (temp)
480 {
481 /*
482 * this inner loop tests for a dupe signature entry and assures
483 * that only the entry at the top of the list gets used for
484 * conversion; editing any is okay
485 */
486 if (*info)
487 {
488 test = arcsighead;
489 while (test && test != temp)
490 {
491 if (test -> signature && temp -> signature &&
492 !strcmp(test -> signature, temp -> signature))
493 goto ContinueHere; // Got match
494 test = test -> next;
495 }
496 }
497
498 if (!*info || (temp -> id && temp -> extract && temp -> create))
499 {
500 sSelect = (SHORT) WinSendDlgItemMsg(hwnd, ASEL_LISTBOX, LM_INSERTITEM,
501 MPFROM2SHORT(LIT_END, 0),
502 MPFROMP((temp -> id) ?
503 temp -> id : "?"));
504 if (!found && *szDefArc && temp -> id && !strcmp(szDefArc, temp -> id))
505 {
506 WinSendDlgItemMsg(hwnd, ASEL_LISTBOX, LM_SELECTITEM,
507 MPFROMSHORT(sSelect), MPFROMSHORT(TRUE));
508 found = TRUE;
509 }
510 }
511 else
512 {
513 if (!temp -> id || !*temp -> id)
514 WinSendDlgItemMsg(hwnd, ASEL_LISTBOX, LM_INSERTITEM,
515 MPFROM2SHORT(LIT_END, 0),
516 MPFROMP(GetPString(IDS_UNKNOWNUNUSABLETEXT)));
517 else
518 {
519 CHAR s[81];
520
521 sprintf(s, "%0.12s %s",
522 temp -> id,
523 GetPString(IDS_UNUSABLETEXT));
524 WinSendDlgItemMsg(hwnd, ASEL_LISTBOX, LM_INSERTITEM,
525 MPFROM2SHORT(LIT_END, 0),
526 MPFROMP(s));
527 }
528 }
529
530 ContinueHere:
531
532 temp = temp -> next;
533 }
534 if (found)
535 PosOverOkay(hwnd);
536 }
537 break;
538
539 case WM_COMMAND:
540 info = (ARC_TYPE **) WinQueryWindowPtr(hwnd, 0L);
541 switch (SHORT1FROMMP(mp1))
542 {
543 case DID_OK:
544 sSelect = (SHORT) WinSendDlgItemMsg(hwnd,
545 ASEL_LISTBOX,
546 LM_QUERYSELECTION,
547 MPFROMSHORT(LIT_FIRST),
548 MPVOID);
549 if (sSelect >= 0)
550 {
551 temp = arcsighead;
552 if (*info)
553 {
554 *text = 0;
555 WinSendDlgItemMsg(hwnd, ASEL_LISTBOX, LM_QUERYITEMTEXT,
556 MPFROM2SHORT(sSelect, 255), MPFROMP(text));
557 if (*text)
558 {
559 while (temp)
560 {
561 if (temp -> id)
562 {
563 if (!strcmp(text, temp -> id))
564 break;
565 }
566 temp = temp -> next;
567 }
568 }
569 else
570 temp = NULL;
571 }
572 else
573 {
574 x = 0;
575 while (temp)
576 {
577 if (x >= sSelect)
578 break;
579 x++;
580 temp = temp -> next;
581 }
582 }
583 if (temp && (!*info || (temp -> id && temp -> extract &&
584 temp -> create)))
585 {
586 *info = temp;
587 }
588 else
589 {
590 WinSendDlgItemMsg(hwnd, ASEL_LISTBOX, LM_SELECTITEM,
591 MPFROMSHORT(LIT_NONE), FALSE);
592 DosBeep(100, 100);
593 temp = NULL;
594 return 0;
595 }
596 }
597 else
598 {
599 DosBeep(100, 100);
600 return 0;
601 }
602 WinDismissDlg(hwnd, TRUE);
603 return 0;
604
605 case DID_CANCEL:
606 *info = NULL;
607 PostMsg(hwnd, WM_CLOSE, MPVOID, MPVOID);
608 break;
609
610 default:
611 break;
612 }
613 return 0;
614
615 case WM_CONTROL:
616 if (SHORT1FROMMP(mp1) == ASEL_LISTBOX && SHORT2FROMMP(mp1) == LN_ENTER)
617 PostMsg(hwnd, WM_COMMAND, MPFROM2SHORT(DID_OK, 0), MPVOID);
618 return 0;
619
620 case WM_CLOSE:
621 WinDismissDlg(hwnd, FALSE);
622 return 0;
623
624 default:
625 break;
626 }
627 return WinDefDlgProc(hwnd, msg, mp1, mp2);
628}
629
630/*
631 02-08-96 23:55 1
632 8 Feb 96 23:55:32 2
633 8 Feb 96 11:55p 3
634 96-02-08 23:55:32 4
635 */
636
637#pragma alloc_text(ARCCNRS,ArcDateTime)
638
639BOOL ArcDateTime(CHAR * dt, INT type, CDATE * cdate, CTIME * ctime)
640{
641 INT x;
642 BOOL ret = FALSE;
643 CHAR *p, *pp, *pd;
644
645 if (dt && cdate && ctime)
646 {
647 memset(cdate, 0, sizeof(CDATE));
648 memset(ctime, 0, sizeof(CTIME));
649 if (type)
650 {
651 p = dt;
652 while (*p && *p == ' ')
653 p++;
654 pd = dt;
655 switch (type)
656 {
657 case 1:
658 cdate -> month = atoi(pd);
659 p = to_delim(pd, "-/.");
660 if (p)
661 {
662 p++;
663 cdate -> day = atoi(p);
664 pd = p;
665 p = to_delim(pd, "-/.");
666 if (p)
667 {
668 p++;
669 cdate -> year = atoi(p);
670 if (cdate -> year > 80 && cdate -> year < 1900)
671 cdate -> year += 1900;
672 else if (cdate -> year < 1900)
673 cdate -> year += 2000;
674 ret = TRUE;
675 p = strchr(p, ' ');
676 if (p)
677 {
678 while (*p && *p == ' ')
679 p++;
680 ctime -> hours = atoi(p);
681 p = to_delim(pd, ":.");
682 if (p)
683 {
684 p++;
685 ctime -> minutes = atoi(p);
686 p = to_delim(pd, ":.");
687 if (p)
688 {
689 p++;
690 ctime -> seconds = atoi(p);
691 }
692 }
693 }
694 }
695 }
696 break;
697
698 case 2:
699 cdate -> day = atoi(p);
700 p = strchr(p, ' ');
701 if (p)
702 {
703 p++;
704 for (x = 0; x < 12; x++)
705 {
706 if (!strnicmp(p, GetPString(IDS_JANUARY + x), 3))
707 break;
708 }
709 if (x < 12)
710 {
711 cdate -> month = x;
712 p = strchr(p, ' ');
713 if (p)
714 {
715 p++;
716 cdate -> year = atoi(p);
717 if (cdate -> year > 80 && cdate -> year < 1900)
718 cdate -> year += 1900;
719 else if (cdate -> year < 1900)
720 cdate -> year += 2000;
721 ret = TRUE;
722 p = strchr(p, ' ');
723 if (p)
724 {
725 while (*p && *p == ' ')
726 p++;
727 ctime -> hours = atoi(p);
728 p = to_delim(pd, ":.");
729 if (p)
730 {
731 p++;
732 ctime -> minutes = atoi(p);
733 p = to_delim(pd, ":.");
734 if (p)
735 {
736 p++;
737 ctime -> seconds = atoi(p);
738 }
739 }
740 }
741 }
742 }
743 }
744 break;
745
746 case 3:
747 cdate -> day = atoi(p);
748 p = strchr(p, ' ');
749 if (p)
750 {
751 p++;
752 for (x = 0; x < 12; x++)
753 {
754 if (!strnicmp(p, GetPString(IDS_JANUARY + x), 3))
755 break;
756 }
757 if (x < 12)
758 {
759 cdate -> month = x;
760 p = strchr(p, ' ');
761 if (p)
762 {
763 p++;
764 cdate -> year = atoi(p);
765 if (cdate -> year > 80 && cdate -> year < 1900)
766 cdate -> year += 1900;
767 else if (cdate -> year < 1900)
768 cdate -> year += 2000;
769 ret = TRUE;
770 p = strchr(p, ' ');
771 if (p)
772 {
773 while (*p && *p == ' ')
774 p++;
775 ctime -> hours = atoi(p);
776 p = to_delim(pd, ":.");
777 if (p)
778 {
779 p++;
780 pp = p;
781 ctime -> minutes = atoi(p);
782 p = to_delim(pd, ":.");
783 if (p)
784 {
785 p++;
786 ctime -> seconds = atoi(p);
787 p += 2;
788 if (toupper(*p) == 'P')
789 ctime -> hours += 12;
790 }
791 else
792 {
793 p = pp;
794 p += 2;
795 if (toupper(*p) == 'P')
796 ctime -> hours += 12;
797 }
798 }
799 }
800 }
801 }
802 }
803 break;
804
805 case 4:
806 cdate -> year = atoi(p);
807 if (cdate -> year > 80 && cdate -> year < 1900)
808 cdate -> year += 1900;
809 else if (cdate -> year < 1900)
810 cdate -> year += 2000;
811 p = to_delim(pd, "-/.");
812 if (p)
813 {
814 p++;
815 cdate -> month = atoi(p);
816 pd = p;
817 p = to_delim(pd, "-/.");
818 if (p)
819 {
820 p++;
821 cdate -> day = atoi(p);
822 ret = TRUE;
823 p = strchr(p, ' ');
824 if (p)
825 {
826 while (*p && *p == ' ')
827 p++;
828 ctime -> hours = atoi(p);
829 p = to_delim(pd, ":.");
830 if (p)
831 {
832 p++;
833 ctime -> minutes = atoi(p);
834 p = to_delim(pd, ":.");
835 if (p)
836 {
837 p++;
838 ctime -> seconds = atoi(p);
839 }
840 }
841 }
842 }
843 }
844 break;
845
846 case 5:
847 cdate -> day = atoi(pd);
848 p = to_delim(pd, "-/.");
849 if (p)
850 {
851 p++;
852 cdate -> month = atoi(p);
853 pd = p;
854 p = to_delim(pd, "-/.");
855 if (p)
856 {
857 p++;
858 cdate -> year = atoi(p);
859 if (cdate -> year > 80 && cdate -> year < 1900)
860 cdate -> year += 1900;
861 else if (cdate -> year < 1900)
862 cdate -> year += 2000;
863 ret = TRUE;
864 p = strchr(p, ' ');
865 if (p)
866 {
867 while (*p && *p == ' ')
868 p++;
869 ctime -> hours = atoi(p);
870 p = to_delim(pd, ":.");
871 if (p)
872 {
873 p++;
874 ctime -> minutes = atoi(p);
875 p = to_delim(pd, ":.");
876 if (p)
877 {
878 p++;
879 ctime -> seconds = atoi(p);
880 }
881 }
882 }
883 }
884 }
885 break;
886
887 default:
888 break;
889 }
890 }
891 }
892 return ret;
893}
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