summaryrefslogtreecommitdiff
path: root/pith/msgno.c
blob: cf36f3a10866b390d7c89613bb285e8042758829 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
#if !defined(lint) && !defined(DOS)
static char rcsid[] = "$Id: msgno.c 854 2007-12-07 17:44:43Z hubert@u.washington.edu $";
#endif

/*
 * ========================================================================
 * Copyright 2006-2007 University of Washington
 * Copyright 2013-2016 Eduardo Chappa
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * ========================================================================
 */

#include "../pith/headers.h"
#include "../pith/msgno.h"
#include "../pith/flag.h"
#include "../pith/mailindx.h"
#include "../pith/pineelt.h"
#include "../pith/icache.h"


/* internal prototypes */
void    set_msg_score(MAILSTREAM *, long, long);


/*
 *           * * *  Message number management functions  * * *
 */


/*----------------------------------------------------------------------
  Initialize a message manipulation structure for the given total

   Accepts: msgs - pointer to pointer to message manipulation struct
	    tot - number of messages to initialize with
  ----*/
void
msgno_init(MSGNO_S **msgs, long int tot, SortOrder def_sort, int def_sort_rev)
{
    long   slop = (tot + 1L) % 64;
    size_t len;

    if(!msgs)
      return;

    if(!(*msgs)){
	(*msgs) = (MSGNO_S *)fs_get(sizeof(MSGNO_S));
	memset((void *)(*msgs), 0, sizeof(MSGNO_S));
    }

    (*msgs)->sel_cur  = 0L;
    (*msgs)->sel_cnt  = 1L;
    (*msgs)->sel_size = 8L;
    len		      = (size_t)(*msgs)->sel_size * sizeof(long);
    if((*msgs)->select)
      fs_resize((void **)&((*msgs)->select), len);
    else
      (*msgs)->select = (long *)fs_get(len);

    (*msgs)->select[0] = (tot) ? 1L : 0L;

    (*msgs)->sort_size = (tot + 1L) + (64 - slop);
    len		       = (size_t)(*msgs)->sort_size * sizeof(long);
    if((*msgs)->sort)
      fs_resize((void **)&((*msgs)->sort), len);
    else
      (*msgs)->sort = (long *)fs_get(len);

    memset((void *)(*msgs)->sort, 0, len);
    for(slop = 1L ; slop <= tot; slop++)	/* reusing "slop" */
      (*msgs)->sort[slop] = slop;

    /*
     * If there is filtering happening, isort will become larger than sort.
     * Sort is a list of raw message numbers in their sorted order. There
     * are missing raw numbers because some of the messages are excluded
     * (MN_EXLD) from the view. Isort has one entry for every raw message
     * number, which maps to the corresponding msgno (the row in the sort
     * array). Some of the entries in isort are not used because those
     * messages are excluded, but the entry is still there because we want
     * to map from rawno to message number and the row number is the rawno.
     */
    (*msgs)->isort_size = (*msgs)->sort_size;
    if((*msgs)->isort)
      fs_resize((void **)&((*msgs)->isort), len);
    else
      (*msgs)->isort = (long *)fs_get(len);

    (*msgs)->max_msgno    = tot;
    (*msgs)->nmsgs	  = tot;

    /* set the inverse array */
    msgno_reset_isort(*msgs);

    (*msgs)->sort_order   = def_sort;
    (*msgs)->reverse_sort = def_sort_rev;
    (*msgs)->flagged_hid  = 0L;
    (*msgs)->flagged_exld = 0L;
    (*msgs)->flagged_chid = 0L;
    (*msgs)->flagged_chid2= 0L;
    (*msgs)->flagged_coll = 0L;
    (*msgs)->flagged_usor = 0L;
    (*msgs)->flagged_tmp  = 0L;
    (*msgs)->flagged_stmp = 0L;

    /*
     * This one is the total number of messages which are flagged
     * hid OR chid. It isn't the sum of those two because a
     * message may be flagged both at the same time.
     */
    (*msgs)->flagged_invisible = 0L;

    /*
     * And this keeps track of visible threads in the THRD_INDX. This is
     * weird because a thread is visible if any of its messages are
     * not hidden, including those that are CHID hidden. You can't just
     * count up all the messages that are hid or chid because you would
     * miss a thread that has its top-level message hidden but some chid
     * message not hidden.
     */
    (*msgs)->visible_threads = -1L;
}


/*
 * Isort makes mn_raw2m fast. Alternatively, we could look through
 * the sort array to do mn_raw2m.
 */
void
msgno_reset_isort(MSGNO_S *msgs)
{
    long i;

    if(msgs){
	/*
	 * Zero isort so raw messages numbers which don't appear in the
	 * sort array show up as undefined.
	 */
	memset((void *) msgs->isort, 0,
	       (size_t) msgs->isort_size * sizeof(long));

	/* fill in all the defined entries */
	for(i = 1L; i <= mn_get_total(msgs); i++)
	  msgs->isort[msgs->sort[i]] = i;
    }
}



/*----------------------------------------------------------------------
  Release resources of a message manipulation structure

   Accepts: msgs - pointer to message manipulation struct
	    n - number to test
   Returns: with specified structure and its members free'd
  ----*/
void
msgno_give(MSGNO_S **msgs)
{
    if(msgs && *msgs){
	if((*msgs)->sort)
	  fs_give((void **) &((*msgs)->sort));

	if((*msgs)->isort)
	  fs_give((void **) &((*msgs)->isort));

	if((*msgs)->select)
	  fs_give((void **) &((*msgs)->select));

	fs_give((void **) msgs);
    }
}



/*----------------------------------------------------------------------
  Release resources of a message part exception list

   Accepts: parts -- list of parts to free
   Returns: with specified structure and its members free'd
  ----*/
void
msgno_free_exceptions(PARTEX_S **parts)
{
    if(parts && *parts){
	if((*parts)->next)
	  msgno_free_exceptions(&(*parts)->next);

	fs_give((void **) &(*parts)->partno);
	fs_give((void **) parts);
    }
}



/*----------------------------------------------------------------------
 Increment the current message number

   Accepts: msgs - pointer to message manipulation struct
  ----*/
void
msgno_inc(MAILSTREAM *stream, MSGNO_S *msgs, int flags)
{
    long i;

    if(!msgs || mn_get_total(msgs) < 1L)
      return;
    
    for(i = msgs->select[msgs->sel_cur] + 1; i <= mn_get_total(msgs); i++){
        if(!msgline_hidden(stream, msgs, i, flags)){
	    (msgs)->select[((msgs)->sel_cur)] = i;
	    break;
	}
    }
}
 


/*----------------------------------------------------------------------
  Decrement the current message number

   Accepts: msgs - pointer to message manipulation struct
  ----*/
void
msgno_dec(MAILSTREAM *stream, MSGNO_S *msgs, int flags)
{
    long i;

    if(!msgs || mn_get_total(msgs) < 1L)
      return;

    for(i = (msgs)->select[((msgs)->sel_cur)] - 1L; i >= 1L; i--){
        if(!msgline_hidden(stream, msgs, i, flags)){
	    (msgs)->select[((msgs)->sel_cur)] = i;
	    break;
	}
    }
}



/*----------------------------------------------------------------------
  Got thru the message mapping table, and remove messages with DELETED flag

   Accepts: stream -- mail stream to removed message references from
	    msgs -- pointer to message manipulation struct
	    f -- flags to use a purge criteria
  ----*/
void
msgno_exclude_deleted(MAILSTREAM *stream, MSGNO_S *msgs, char *sequence)
{
    long	  i, rawno;
    MESSAGECACHE *mc;
    int           need_isort_reset = 0;

    if(!msgs || msgs->max_msgno < 1L)
      return;

    /*
     * With 3.91 we're using a new strategy for finding and operating
     * on all the messages with deleted status.  The idea is to do a
     * mail_search for deleted messages so the elt's "searched" bit gets
     * set, and then to scan the elt's for them and set our local bit
     * to indicate they're excluded...
     */
    (void) count_flagged(stream, F_DEL);

    if(sequence)
	mail_sequence (stream,(unsigned char *) sequence);

    /*
     * Start with the end of the folder and work backwards so that
     * msgno_exclude doesn't have to shift the entire array each time when
     * there are lots of deleteds. In fact, if everything is deleted (like
     * might be the case in a huge newsgroup) then it never has to shift
     * anything. It is always at the end of the array just eliminating the
     * last one instead. So instead of an n**2 operation, it is n.
     */
    for(i = msgs->max_msgno; i >= 1L; i--)
      if((rawno = mn_m2raw(msgs, i)) > 0L && stream && rawno <= stream->nmsgs
	 && (mc = mail_elt(stream, rawno))
	 && (sequence ? mc->sequence : 1)
	 && ((mc->valid && mc->deleted) || (!mc->valid && mc->searched))){
	  msgno_exclude(stream, msgs, i, 0);
	  need_isort_reset++;
      }
    
    if(need_isort_reset)
      msgno_reset_isort(msgs);

    /*
     * If we excluded away a zoomed display, unhide everything...
     */
    if(msgs->max_msgno > 0L && any_lflagged(msgs, MN_HIDE) >= msgs->max_msgno)
      for(i = 1L; i <= msgs->max_msgno; i++)
	set_lflag(stream, msgs, i, MN_HIDE, 0);
}



void
msgno_exclude(MAILSTREAM *stream, MSGNO_S *msgmap, long int msgno, int reset_isort)
{
    long i;

    /*--- clear all flags to keep our counts consistent  ---*/
    set_lflag(stream, msgmap, msgno, MN_HIDE | MN_CHID | MN_CHID2 | MN_SLCT, 0);
    set_lflag(stream, msgmap, msgno, MN_EXLD, 1); /* mark excluded */

    /* erase knowledge in sort array (shift array down) */
    for(i = msgno + 1L; i <= msgmap->max_msgno; i++)
      msgmap->sort[i-1L] = msgmap->sort[i];

    msgmap->max_msgno = MAX(0L, msgmap->max_msgno - 1L);
    if(reset_isort)
      msgno_reset_isort(msgmap);

    msgno_flush_selected(msgmap, msgno);
}



/*----------------------------------------------------------------------
   Accepts: stream -- mail stream to removed message references from
	    msgs -- pointer to message manipulation struct
	    flags
	      MI_REFILTERING  -- do includes appropriate for refiltering
	      MI_STATECHGONLY -- when refiltering, maybe only re-include
	                         messages which have had state changes
				 since they were originally filtered
   Returns 1 if any new messages are included (indicating that we need
              to re-sort)
	   0 if no new messages are included
  ----*/
int
msgno_include(MAILSTREAM *stream, MSGNO_S *msgs, int flags)
{
    long   i, slop, old_total, old_size;
    int    exbits, ret = 0;
    size_t len;
    MESSAGECACHE *mc;

    if(!msgs)
      return(ret);

    for(i = 1L; i <= stream->nmsgs; i++){
	if(!msgno_exceptions(stream, i, "0", &exbits, FALSE))
	  exbits = 0;

	if((((flags & MI_REFILTERING) && (exbits & MSG_EX_FILTERED)
	     && !(exbits & MSG_EX_FILED)
	     && (!(flags & MI_STATECHGONLY) || (exbits & MSG_EX_STATECHG)))
	    || (!(flags & MI_REFILTERING) && !(exbits & MSG_EX_FILTERED)))
	   && get_lflag(stream, NULL, i, MN_EXLD)){
	    old_total	     = msgs->max_msgno;
	    old_size	     = msgs->sort_size;
	    slop	     = (msgs->max_msgno + 1L) % 64;
	    msgs->sort_size  = (msgs->max_msgno + 1L) + (64 - slop);
	    len		     = (size_t) msgs->sort_size * sizeof(long);
	    if(msgs->sort){
		if(old_size != msgs->sort_size)
		  fs_resize((void **)&(msgs->sort), len);
	    }
	    else
	      msgs->sort = (long *)fs_get(len);

	    ret = 1;
	    msgs->sort[++msgs->max_msgno] = i;
	    msgs->isort[i] = msgs->max_msgno;
	    set_lflag(stream, msgs, msgs->max_msgno, MN_EXLD, 0);
	    if(flags & MI_REFILTERING){
		exbits &= ~(MSG_EX_FILTERED | MSG_EX_TESTED);
		msgno_exceptions(stream, i, "0", &exbits, TRUE);
	    }

	    if(old_total <= 0L){	/* if no previous messages, */
		if(!msgs->select){	/* select the new message   */
		    msgs->sel_size = 8L;
		    len		   = (size_t)msgs->sel_size * sizeof(long);
		    msgs->select   = (long *)fs_get(len);
		}

		msgs->sel_cnt   = 1L;
		msgs->sel_cur   = 0L;
		msgs->select[0] = 1L;
	    }
	}
	else if((flags & MI_REFILTERING)
		&& (exbits & (MSG_EX_FILTERED | MSG_EX_TESTED))
		&& !(exbits & MSG_EX_FILED)
		&& (!(exbits & MSG_EX_MANUNDEL)
		    || ((mc = mail_elt(stream, i)) && mc->deleted))
	        && (!(flags & MI_STATECHGONLY) || (exbits & MSG_EX_STATECHG))){
	    /*
	     * We get here if the message was filtered by a filter that
	     * just changes status bits (it wasn't excluded), and now also
	     * if the message was merely tested for filtering. It has also
	     * not been manually undeleted. If it was manually undeleted, we
	     * don't want to reprocess the filter, undoing the user's
	     * manual undeleting. Of course, a new pine will re check this
	     * message anyway, so the user had better be using this
	     * manual undeleting only to temporarily save him or herself
	     * from an expunge before Saving or printing or something.
	     * Also, we want to still try filtering if the message has at
	     * all been marked deleted, even if the there was any manual
	     * undeleting, since this directly precedes an expunge, we want
	     * to make sure the filter does the right thing before getting
	     * rid of the message forever.
	     */
	    exbits &= ~(MSG_EX_FILTERED | MSG_EX_TESTED);
	    msgno_exceptions(stream, i, "0", &exbits, TRUE);
	}
    }

    return(ret);
}



/*----------------------------------------------------------------------
 Add the given number of raw message numbers to the end of the
 current list...

   Accepts: msgs - pointer to message manipulation struct
	    n - number to add
   Returns: with fixed up msgno struct

   Only have to adjust the sort array, as since new mail can't cause
   selection!
  ----*/
void
msgno_add_raw(MSGNO_S *msgs, long int n)
{
    long   slop, islop, old_total, old_size, old_isize;
    size_t len, ilen;

    if(!msgs || n <= 0L)
      return;

    old_total        = msgs->max_msgno;
    old_size         = msgs->sort_size;
    old_isize        = msgs->isort_size;
    slop             = (msgs->max_msgno + n + 1L) % 64;
    islop            = (msgs->nmsgs + n + 1L) % 64;
    msgs->sort_size  = (msgs->max_msgno + n + 1L) + (64 - slop);
    msgs->isort_size = (msgs->nmsgs + n + 1L) + (64 - islop);
    len		     = (size_t) msgs->sort_size * sizeof(long);
    ilen	     = (size_t) msgs->isort_size * sizeof(long);
    if(msgs->sort){
	if(old_size != msgs->sort_size)
	  fs_resize((void **) &(msgs->sort), len);
    }
    else
      msgs->sort = (long *) fs_get(len);

    if(msgs->isort){
	if(old_isize != msgs->isort_size)
	  fs_resize((void **) &(msgs->isort), ilen);
    }
    else
      msgs->isort = (long *) fs_get(ilen);

    while(n-- > 0){
	msgs->sort[++msgs->max_msgno] = ++msgs->nmsgs;
	msgs->isort[msgs->nmsgs] = msgs->max_msgno;
    }

    if(old_total <= 0L){			/* if no previous messages, */
	if(!msgs->select){			/* select the new message   */
	    msgs->sel_size = 8L;
	    len		   = (size_t) msgs->sel_size * sizeof(long);
	    msgs->select   = (long *) fs_get(len);
	}

	msgs->sel_cnt   = 1L;
	msgs->sel_cur   = 0L;
	msgs->select[0] = 1L;
    }
}


/*----------------------------------------------------------------------
  Remove all knowledge of the given raw message number

   Accepts: msgs - pointer to message manipulation struct
	    rawno - number to remove
   Returns: with fixed up msgno struct

   After removing *all* references, adjust the sort array and
   various pointers accordingly...
  ----*/
void
msgno_flush_raw(MSGNO_S *msgs, long int rawno)
{
    long i, old_sorted = 0L;
    int  shift = 0;

    if(!msgs)
      return;

    /* blast rawno from sort array */
    for(i = 1L; i <= msgs->max_msgno; i++){
	if(msgs->sort[i] == rawno){
	    old_sorted = i;
	    shift++;
	}

	if(shift && i < msgs->max_msgno)
	  msgs->sort[i] = msgs->sort[i + 1L];

	if(msgs->sort[i] > rawno)
	  msgs->sort[i] -= 1L;
    }

    /*---- now, fixup counts and select array ----*/
    if(--msgs->nmsgs < 0)
      msgs->nmsgs = 0L;

    if(old_sorted){
	if(--msgs->max_msgno < 0)
	  msgs->max_msgno = 0L;

	msgno_flush_selected(msgs, old_sorted);
    }

    msgno_reset_isort(msgs);

    {	char b[100];
	snprintf(b, sizeof(b),
		"isort validity: end of msgno_flush_raw: rawno=%ld\n", rawno);
    }
}


/*----------------------------------------------------------------------
  Remove all knowledge of the given selected message number

   Accepts: msgs - pointer to message manipulation struct
	    n - number to remove
   Returns: with fixed up selec members in msgno struct

   Remove reference and fix up selected message numbers beyond
   the specified number
  ----*/
void
msgno_flush_selected(MSGNO_S *msgs, long int n)
{
    long i;
    int  shift = 0;

    for(i = 0L; i < msgs->sel_cnt; i++){
	if(!shift && (msgs->select[i] == n))
	  shift++;

	if(shift && i + 1L < msgs->sel_cnt)
	  msgs->select[i] = msgs->select[i + 1L];

	if(n < msgs->select[i] || msgs->select[i] > msgs->max_msgno)
	  msgs->select[i] -= 1L;
    }

    if(shift && msgs->sel_cnt > 1L)
      msgs->sel_cnt -= 1L;
}


void
msgno_set_sort(MSGNO_S *msgs, SortOrder sort)
{
    if(msgs){
	if(sort == SortScore)
	  scores_are_used(SCOREUSE_INVALID);

	msgs->sort_order = sort;
    }
}


/*----------------------------------------------------------------------
  Test to see if the given message number is in the selected message
  list...

   Accepts: msgs - pointer to message manipulation struct
	    n - number to test
   Returns: true if n is in selected array, false otherwise

  ----*/
int
msgno_in_select(MSGNO_S *msgs, long int n)
{
    long i;

    if(msgs)
      for(i = 0L; i < msgs->sel_cnt; i++)
	if(msgs->select[i] == n)
	  return(1);

    return(0);
}



/*----------------------------------------------------------------------
  return our index number for the given raw message number

   Accepts: msgs - pointer to message manipulation struct
	    msgno - number that's important
	    part
   Returns: our index number of given raw message

  ----*/
int
msgno_exceptions(MAILSTREAM *stream, long int rawno, char *part, int *bits, int set)
{
    PINELT_S **peltp;
    PARTEX_S **partp;
    MESSAGECACHE *mc;

    if(!stream || rawno < 1L || rawno > stream->nmsgs)
      return FALSE;

    /*
     * Get pointer to exceptional part list, and scan down it
     * for the requested part...
     */
    if((mc = mail_elt(stream, rawno)) && (*(peltp = (PINELT_S **) &mc->sparep)))
      for(partp = &(*peltp)->exceptions; *partp; partp = &(*partp)->next){
	  if(part){
	      if(!strcmp(part, (*partp)->partno)){
		  if(bits){
		      if(set)
			(*partp)->handling = *bits;
		      else
			*bits = (*partp)->handling;
		  }

		  return(TRUE);		/* bingo! */
	      }
	  }
	  else if(bits){
	      /*
	       * The caller provided flags, but no part.
	       * We are looking to see if the bits are set in any of the
	       * parts. This doesn't count parts with non-digit partno's (like
	       * scores) because those are used differently.
	       * any of the flags...
	       */
	      if((*partp)->partno && *(*partp)->partno &&
		 isdigit((unsigned char) *(*partp)->partno) &&
		 (*bits & (*partp)->handling) == *bits)
		return(TRUE);
	  }
	  else
	    /*
	     * The caller didn't specify a part, so
	     * they must just be interested in whether
	     * the msg had any exceptions at all...
	     */
	    return(TRUE);
      }

    if(set && part){
	if(!*peltp){
	    *peltp = (PINELT_S *) fs_get(sizeof(PINELT_S));
	    memset(*peltp, 0, sizeof(PINELT_S));
	    partp = &(*peltp)->exceptions;
	}

	(*partp)	   = (PARTEX_S *) fs_get(sizeof(PARTEX_S));
	(*partp)->partno   = cpystr(part);
	(*partp)->next	   = NULL;
	(*partp)->handling = *bits;
	return(TRUE);
    }

    if(bits)			/* init bits */
      *bits = 0;

    return(FALSE);
}


/*
 * Checks whether any parts of any of the messages in msgmap are marked
 * for deletion.
 */
int
msgno_any_deletedparts(MAILSTREAM *stream, MSGNO_S *msgmap)
{
    long n, rawno;
    PINELT_S  *pelt;
    PARTEX_S **partp;
    MESSAGECACHE *mc;

    for(n = mn_first_cur(msgmap); n > 0L; n = mn_next_cur(msgmap))
      if((rawno = mn_m2raw(msgmap, n)) > 0L
	 && stream && rawno <= stream->nmsgs
	 && (mc = mail_elt(stream, rawno))
	 && (pelt = (PINELT_S *) mc->sparep))
        for(partp = &pelt->exceptions; *partp; partp = &(*partp)->next)
	  if(((*partp)->handling & MSG_EX_DELETE)
	     && (*partp)->partno
	     && *(*partp)->partno != '0'
	     && isdigit((unsigned char) *(*partp)->partno))
	    return(1);

    return(0);
}


int
msgno_part_deleted(MAILSTREAM *stream, long int rawno, char *part)
{
    char *p;
    int   expbits;

    /*
     * Is this attachment or any of it's parents in the
     * MIME structure marked for deletion?
     */
    for(p = part; p && *p; p = strindex(++p, '.')){
	if(*p == '.')
	  *p = '\0';

	(void) msgno_exceptions(stream, rawno, part, &expbits, FALSE);
	if(!*p)
	  *p = '.';

	if(expbits & MSG_EX_DELETE)
	  return(TRUE);
    }

    /* Finally, check if the whole message body's deleted */
    return(msgno_exceptions(stream, rawno, "", &expbits, FALSE)
	   ? (expbits & MSG_EX_DELETE) : FALSE);
}



/* 
 * Set the score for a message to score, which can be anything including
 * SCORE_UNDEF.
 */
void
set_msg_score(MAILSTREAM *stream, long int rawmsgno, long int score)
{
    int intscore;

    /* scores are between SCORE_MIN and SCORE_MAX, so ok */
    intscore = (int) score;

    (void) msgno_exceptions(stream, rawmsgno, "S", &intscore, TRUE);
}


/*
 * Returns the score for a message. If that score is undefined the value
 * returned will be SCORE_UNDEF, so the caller has to be prepared for that.
 * The caller should calculate the undefined scores before calling this.
 */
long
get_msg_score(MAILSTREAM *stream, long int rawmsgno)
{
    int  s;
    long score;

    if(msgno_exceptions(stream, rawmsgno, "S", &s, FALSE))
      score = (long) s;
    else
      score = SCORE_UNDEF;

    return(score);
}


void
clear_msg_score(MAILSTREAM *stream, long int rawmsgno)
{
    if(!stream)
      return;

    set_msg_score(stream, rawmsgno, SCORE_UNDEF);
}


/*
 * Set all the score values to undefined.
 */
void
clear_folder_scores(MAILSTREAM *stream)
{
    long n;

    if(!stream)
      return;

    for(n = 1L; n <= stream->nmsgs; n++)
      clear_msg_score(stream, n);
}


/*
 * Calculates all of the scores for the searchset and stores them in the
 * mail elts. Careful, this function uses patterns so if the caller is using
 * patterns then the caller will probably have to reset the pattern functions.
 * That is, will have to call first_pattern again with the correct type.
 *
 * Args:     stream
 *        searchset -- calculate scores for this set of messages
 *         no_fetch -- we're in a callback from c-client, don't call c-client
 *
 * Returns   1 -- ok
 *           0 -- error, because of no_fetch
 */
int
calculate_some_scores(MAILSTREAM *stream, SEARCHSET *searchset, int no_fetch)
{
    PAT_S         *pat = NULL;
    PAT_STATE      pstate;
    char          *savebits;
    long           newscore, addtoscore, score;
    int            error = 0;
    long           rflags = ROLE_SCORE;
    long           n, i;
    SEARCHSET     *s;
    MESSAGECACHE  *mc;
    HEADER_TOK_S  *hdrtok;

    dprint((7, "calculate_some_scores\n"));

    if(nonempty_patterns(rflags, &pstate)){

	/* calculate scores */
	if(searchset){
	    
	    /* this calls match_pattern which messes up searched bits */
	    savebits = (char *)fs_get((stream->nmsgs+1) * sizeof(char));
	    for(i = 1L; i <= stream->nmsgs; i++)
	      savebits[i] = (mc = mail_elt(stream, i)) ? mc->searched : 0;

	    /*
	     * First set all the scores in the searchset to zero so that they
	     * will no longer be undefined.
	     */
	    score = 0L;
	    for(s = searchset; s; s = s->next)
	      for(n = s->first; n <= s->last; n++)
		set_msg_score(stream, n, score);

	    for(pat = first_pattern(&pstate);
		!error && pat;
		pat = next_pattern(&pstate)){

		newscore = pat->action->scoreval;
		hdrtok = pat->action->scorevalhdrtok;

		/*
		 * This no_fetch probably isn't necessary since
		 * we will actually have fetched this with
		 * the envelope. Just making sure.
		 */
		if(hdrtok && no_fetch){
		    error++;
		    break;
		}

		switch(match_pattern(pat->patgrp, stream, searchset, NULL, NULL,
				     (no_fetch ? MP_IN_CCLIENT_CB : 0)
				      | (SE_NOSERVER|SE_NOPREFETCH))){
		  case 1:
		    if(!pat->action || pat->action->bogus)
		      break;

		    for(s = searchset; s; s = s->next)
		      for(n = s->first; n <= s->last; n++)
			if(n > 0L && stream && n <= stream->nmsgs
			   && (mc = mail_elt(stream, n)) && mc->searched){
			    if((score = get_msg_score(stream,n)) == SCORE_UNDEF)
			      score = 0L;
			    
			    if(hdrtok)
			      addtoscore = scorevalfrommsg(stream, n, hdrtok, no_fetch);
			    else
			      addtoscore = newscore;

			    score += addtoscore;
			    set_msg_score(stream, n, score);
			}

		    break;
		
		  case 0:
		    break;

		  case -1:
		    error++;
		    break;
		}
	    }

	    for(i = 1L; i <= stream->nmsgs; i++)
	      if((mc = mail_elt(stream, i)) != NULL)
		mc->searched = savebits[i];

	    fs_give((void **)&savebits);

	    if(error){
		/*
		 * Revert to undefined scores.
		 */
		score = SCORE_UNDEF;
		for(s = searchset; s; s = s->next)
		  for(n = s->first; n <= s->last; n++)
		    set_msg_score(stream, n, score);
	    }
	}
    }

    return(error ? 0 : 1);
}


void
free_pine_elt(void **sparep)
{
    PINELT_S **peltp;

    peltp = (PINELT_S **) sparep;

    if(peltp && *peltp){
	msgno_free_exceptions(&(*peltp)->exceptions);
	if((*peltp)->pthrd)
	  fs_give((void **) &(*peltp)->pthrd);

	if((*peltp)->ice)
	  free_ice(&(*peltp)->ice);

	fs_give((void **) peltp);
    }
}