1 /* ========================================================================
2 * Copyright 2008-2011 Mark Crispin
3 * ========================================================================
4 */
5
6 /*
7 * Program: Dummy routines for DOS
8 *
9 * Author: Mark Crispin
10 *
11 * Date: 24 May 1993
12 * Last Edited: 8 April 2011
13 *
14 * Previous versions of this file were
15 *
16 * Copyright 1988-2006 University of Washington
17 *
18 * Licensed under the Apache License, Version 2.0 (the "License");
19 * you may not use this file except in compliance with the License.
20 * You may obtain a copy of the License at
21 *
22 * http://www.apache.org/licenses/LICENSE-2.0
23 *
24 */
25
26
27 #include <ctype.h>
28 #include <errno.h>
29 #include <fcntl.h>
30 #include "mail.h"
31 #include "osdep.h"
32 #include <sys\stat.h>
33 #include <dos.h>
34 #include "dummy.h"
35 #include "misc.h"
36
37 /* Function prototypes */
38
39 DRIVER *dummy_valid (char *name);
40 void *dummy_parameters (long function,void *value);
41 void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
42 long level);
43 long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
44 long attributes,char *contents);
45 long dummy_subscribe (MAILSTREAM *stream,char *mailbox);
46 MAILSTREAM *dummy_open (MAILSTREAM *stream);
47 void dummy_close (MAILSTREAM *stream,long options);
48 long dummy_ping (MAILSTREAM *stream);
49 void dummy_check (MAILSTREAM *stream);
50 long dummy_expunge (MAILSTREAM *stream,char *sequence,long options);
51 long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
52 long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
53 long dummy_badname (char *tmp,char *s);
54
55 /* Dummy routines */
56
57
58 /* Driver dispatch used by MAIL */
59
60 DRIVER dummydriver = {
61 "dummy", /* driver name */
62 DR_LOCAL|DR_MAIL, /* driver flags */
63 (DRIVER *) NIL, /* next driver */
64 dummy_valid, /* mailbox is valid for us */
65 dummy_parameters, /* manipulate parameters */
66 dummy_scan, /* scan mailboxes */
67 dummy_list, /* list mailboxes */
68 dummy_lsub, /* list subscribed mailboxes */
69 dummy_subscribe, /* subscribe to mailbox */
70 NIL, /* unsubscribe from mailbox */
71 dummy_create, /* create mailbox */
72 dummy_delete, /* delete mailbox */
73 dummy_rename, /* rename mailbox */
74 mail_status_default, /* status of mailbox */
75 dummy_open, /* open mailbox */
76 dummy_close, /* close mailbox */
77 NIL, /* fetch message "fast" attributes */
78 NIL, /* fetch message flags */
79 NIL, /* fetch overview */
80 NIL, /* fetch message structure */
81 NIL, /* fetch header */
82 NIL, /* fetch text */
83 NIL, /* fetch message data */
84 NIL, /* unique identifier */
85 NIL, /* message number from UID */
86 NIL, /* modify flags */
87 NIL, /* per-message modify flags */
88 NIL, /* search for message based on criteria */
89 NIL, /* sort messages */
90 NIL, /* thread messages */
91 dummy_ping, /* ping mailbox to see if still alive */
92 dummy_check, /* check for new messages */
93 dummy_expunge, /* expunge deleted messages */
94 dummy_copy, /* copy messages to another mailbox */
95 dummy_append, /* append string message to mailbox */
96 NIL /* garbage collect stream */
97 };
98
99
100 /* prototype stream */
101 MAILSTREAM dummyproto = {&dummydriver};
102
103 /* driver parameters */
104 static char *file_extension = NIL;
105
106 /* Dummy validate mailbox
107 * Accepts: mailbox name
108 * Returns: our driver if name is valid, NIL otherwise
109 */
110
dummy_valid(char * name)111 DRIVER *dummy_valid (char *name)
112 {
113 char *s,tmp[MAILTMPLEN];
114 struct stat sbuf;
115 /* must be valid local mailbox */
116 return (name && *name && (*name != '{') &&
117 (s = mailboxfile (tmp,name)) && (!*s || !stat (s,&sbuf))) ?
118 &dummydriver : NIL;
119 }
120
121
122 /* Dummy manipulate driver parameters
123 * Accepts: function code
124 * function-dependent value
125 * Returns: function-dependent return value
126 */
127
dummy_parameters(long function,void * value)128 void *dummy_parameters (long function,void *value)
129 {
130 void *ret = NIL;
131 switch ((int) function) {
132 case SET_EXTENSION:
133 if (file_extension) fs_give ((void **) &file_extension);
134 if (*(char *) value) file_extension = cpystr ((char *) value);
135 case GET_EXTENSION:
136 ret = (void *) file_extension;
137 }
138 return ret;
139 }
140
141 /* Dummy scan mailboxes
142 * Accepts: mail stream
143 * reference
144 * pattern to search
145 * string to scan
146 */
147
148 #define LISTTMPLEN 128
149
dummy_scan(MAILSTREAM * stream,char * ref,char * pat,char * contents)150 void dummy_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
151 {
152 char *s,test[LISTTMPLEN],file[LISTTMPLEN];
153 long i = 0;
154 if (!pat || !*pat) { /* empty pattern? */
155 if (dummy_canonicalize (test,ref,"*")) {
156 /* tie off name at root */
157 if (s = strchr (test,'\\')) *++s = '\0';
158 else test[0] = '\0';
159 dummy_listed (stream,'\\',test,LATT_NOINFERIORS,NIL);
160 }
161 }
162 /* get canonical form of name */
163 else if (dummy_canonicalize (test,ref,pat)) {
164 /* found any wildcards? */
165 if (s = strpbrk (test,"%*")) {
166 /* yes, copy name up to that point */
167 strncpy (file,test,(size_t) (i = s - test));
168 file[i] = '\0'; /* tie off */
169 }
170 else strcpy (file,test); /* use just that name then */
171 /* find directory name */
172 if (s = strrchr (file,'\\')) {
173 *++s = '\0'; /* found, tie off at that point */
174 s = file;
175 }
176 /* silly case */
177 else if (file[0] == '#') s = file;
178 /* do the work */
179 dummy_list_work (stream,s,test,contents,0);
180 if (pmatch ("INBOX",test)) /* always an INBOX */
181 dummy_listed (stream,NIL,"INBOX",LATT_NOINFERIORS,contents);
182 }
183 }
184
185 /* Dummy list mailboxes
186 * Accepts: mail stream
187 * reference
188 * pattern to search
189 */
190
dummy_list(MAILSTREAM * stream,char * ref,char * pat)191 void dummy_list (MAILSTREAM *stream,char *ref,char *pat)
192 {
193 dummy_scan (stream,ref,pat,NIL);
194 }
195
196
197 /* Dummy list subscribed mailboxes
198 * Accepts: mail stream
199 * pattern to search
200 */
201
dummy_lsub(MAILSTREAM * stream,char * ref,char * pat)202 void dummy_lsub (MAILSTREAM *stream,char *ref,char *pat)
203 {
204 void *sdb = NIL;
205 char *s,*t,test[MAILTMPLEN],tmp[MAILTMPLEN];
206 int showuppers = pat[strlen (pat) - 1] == '%';
207 /* get canonical form of name */
208 if (dummy_canonicalize (test,ref,pat) && (s = sm_read (tmp,&sdb))) do
209 if (*s != '{') {
210 if (pmatch_full (s,test,'\\')) {
211 if (pmatch (s,"INBOX")) mm_lsub (stream,NIL,s,LATT_NOINFERIORS);
212 else mm_lsub (stream,'\\',s,NIL);
213 }
214 else while (showuppers && (t = strrchr (s,'\\'))) {
215 *t = '\0'; /* tie off the name */
216 if (pmatch_full (s,test,'\\')) mm_lsub (stream,'\\',s,LATT_NOSELECT);
217 }
218 }
219 /* until no more subscriptions */
220 while (s = sm_read (tmp,&sdb));
221 }
222
223
224 /* Dummy subscribe to mailbox
225 * Accepts: mail stream
226 * mailbox to add to subscription list
227 * Returns: T on success, NIL on failure
228 */
229
dummy_subscribe(MAILSTREAM * stream,char * mailbox)230 long dummy_subscribe (MAILSTREAM *stream,char *mailbox)
231 {
232 char *s,tmp[MAILTMPLEN];
233 struct stat sbuf;
234 /* must be valid local mailbox */
235 if ((s = mailboxfile (tmp,mailbox)) && *s && !stat (s,&sbuf) &&
236 ((sbuf.st_mode & S_IFMT) == S_IFREG)) return sm_subscribe (mailbox);
237 sprintf (tmp,"Can't subscribe %s: not a mailbox",mailbox);
238 mm_log (tmp,ERROR);
239 return NIL;
240 }
241
242 /* Dummy list mailboxes worker routine
243 * Accepts: mail stream
244 * directory name to search
245 * search pattern
246 * string to scan
247 * search level
248 */
249
dummy_list_work(MAILSTREAM * stream,char * dir,char * pat,char * contents,long level)250 void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
251 long level)
252 {
253 struct find_t f;
254 struct stat sbuf;
255 char *s,tmp[LISTTMPLEN],tmpx[LISTTMPLEN];
256 char *base = (dir && (dir[0] == '\\')) ? NIL : myhomedir ();
257 /* build name */
258 if (base) sprintf (tmpx,"%s\\",base);
259 else tmpx[0] = '\0';
260 if (dir) strcat (tmpx,dir);
261 /* punt if bogus name */
262 if (!mailboxfile (tmp,tmpx)) return;
263 /* make directory wildcard */
264 strcat (tmp,(tmp[strlen (tmp) -1] == '\\') ? "*." : "\\*.");
265 strcat (tmp,file_extension ? file_extension : "*");
266 /* do nothing if can't open directory */
267 if (!_dos_findfirst (tmp,_A_NORMAL|_A_SUBDIR,&f)) {
268 /* list it if at top-level */
269 if (!level && dir && pmatch_full (dir,pat,'\\'))
270 dummy_listed (stream,'\\',dir,LATT_NOSELECT,contents);
271 /* scan directory */
272 if (tmpx[strlen (tmpx) - 1] == '\\') do if (*f.name != '.') {
273 if (base) sprintf (tmpx,"%s\\",base);
274 else tmpx[0] = '\0';
275 if (dir) sprintf (tmpx + strlen (tmpx),"%s%s",dir,f.name);
276 else strcat (tmpx,f.name);
277 if (mailboxfile (tmp,tmpx) && !stat (tmp,&sbuf)) {
278 /* suppress extension */
279 if (file_extension && (s = strchr (f.name,'.'))) *s = '\0';
280 /* now make name we'd return */
281 if (dir) sprintf (tmp,"%s%s",dir,f.name);
282 else strcpy (tmp,f.name);
283 /* only interested in file type */
284 switch (sbuf.st_mode & S_IFMT) {
285 case S_IFDIR: /* directory? */
286 if (pmatch_full (tmp,pat,'\\')) {
287 dummy_listed (stream,'\\',tmp,LATT_NOSELECT,contents);
288 strcat (tmp,"\\"); /* set up for dmatch call */
289 }
290 /* try again with trailing / */
291 else if (pmatch_full (strcat (tmp,"\\"),pat,'\\'))
292 dummy_listed (stream,'\\',tmp,LATT_NOSELECT,contents);
293 if (dmatch (tmp,pat,'\\') &&
294 (level < (long) mail_parameters (NIL,GET_LISTMAXLEVEL,NIL)))
295 dummy_list_work (stream,tmp,pat,contents,level+1);
296 break;
297 case S_IFREG: /* ordinary name */
298 if (pmatch_full (tmp,pat,'\\') && !pmatch ("INBOX",tmp))
299 dummy_listed (stream,'\\',tmp,LATT_NOINFERIORS,contents);
300 break;
301 }
302 }
303 }
304 while (!_dos_findnext (&f));
305 }
306 }
307
308 /* Mailbox found
309 * Accepts: hierarchy delimiter
310 * mailbox name
311 * attributes
312 * contents to search before calling mm_list()
313 * Returns: T, always
314 */
315
316 #define BUFSIZE MAILTMPLEN
317
dummy_listed(MAILSTREAM * stream,char delimiter,char * name,long attributes,char * contents)318 long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
319 long attributes,char *contents)
320 {
321 struct stat sbuf;
322 int fd;
323 size_t csiz,ssiz,bsiz;
324 char *buf,tmp[MAILTMPLEN];
325 if (contents) { /* want to search contents? */
326 /* forget it if can't select or open */
327 if ((attributes & LATT_NOSELECT) || !(csiz = strlen (contents)) ||
328 !mailboxfile (tmp,name) || stat (tmp,&sbuf) || (csiz > sbuf.st_size) ||
329 ((fd = open (tmp,O_RDONLY,NIL)) < 0)) return T;
330 /* get buffer including slop */
331 buf = (char *) fs_get (BUFSIZE + (ssiz = 4 * ((csiz / 4) + 1)) + 1);
332 memset (buf,'\0',ssiz); /* no slop area the first time */
333 while (sbuf.st_size) { /* until end of file */
334 read (fd,buf+ssiz,bsiz = min (sbuf.st_size,BUFSIZE));
335 if (search ((unsigned char *) buf,bsiz+ssiz,
336 (unsigned char *) contents,csiz)) break;
337 memcpy (buf,buf+BUFSIZE,ssiz);
338 sbuf.st_size -= bsiz; /* note that we read that much */
339 }
340 fs_give ((void **) &buf); /* flush buffer */
341 close (fd); /* finished with file */
342 if (!sbuf.st_size) return T;/* not found */
343 }
344 /* notify main program */
345 mm_list (stream,delimiter,name,attributes);
346 return T;
347 }
348
349 /* Dummy create mailbox
350 * Accepts: mail stream
351 * mailbox name to create
352 * Returns: T on success, NIL on failure
353 */
354
dummy_create(MAILSTREAM * stream,char * mailbox)355 long dummy_create (MAILSTREAM *stream,char *mailbox)
356 {
357 char tmp[MAILTMPLEN];
358 return (compare_cstring (mailbox,"INBOX") && mailboxfile (tmp,mailbox)) ?
359 dummy_create_path (stream,tmp,NIL) : dummy_badname (tmp,mailbox);
360 }
361
362
363 /* Dummy create path
364 * Accepts: mail stream
365 * path name to create
366 * directory mode
367 * Returns: T on success, NIL on failure
368 */
369
dummy_create_path(MAILSTREAM * stream,char * path,long dirmode)370 long dummy_create_path (MAILSTREAM *stream,char *path,long dirmode)
371 {
372 struct stat sbuf;
373 char c,*s,tmp[MAILTMPLEN];
374 int fd;
375 long ret = NIL;
376 char *t = strrchr (path,'\\');
377 char *pt = (path[1] == ':') ? path + 2 : path;
378 int wantdir = t && !t[1];
379 if (wantdir) *t = '\0'; /* flush trailing delimiter for directory */
380 /* found superior to this name? */
381 if ((s = strrchr (pt,'\\')) && (s != pt)) {
382 strncpy (tmp,path,(size_t) (s - path));
383 tmp[s - path] = '\0'; /* make directory name for stat */
384 c = *++s; /* tie off in case need to recurse */
385 *s = '\0';
386 /* name doesn't exist, create it */
387 if ((stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
388 !dummy_create_path (stream,path,dirmode)) return NIL;
389 *s = c; /* restore full name */
390 }
391 if (wantdir) { /* want to create directory? */
392 ret = !mkdir (path);
393 *t = '\\'; /* restore directory delimiter */
394 }
395 /* create file */
396 else if ((fd = open (path,O_WRONLY|O_CREAT|O_EXCL,S_IREAD|S_IWRITE)) >= 0)
397 ret = !close (fd); /* close file */
398 if (!ret) { /* error? */
399 sprintf (tmp,"Can't create mailbox node %s: %s",path,strerror (errno));
400 mm_log (tmp,ERROR);
401 }
402 return ret; /* return status */
403 }
404
405 /* Dummy delete mailbox
406 * Accepts: mail stream
407 * mailbox name to delete
408 * Returns: T on success, NIL on failure
409 */
410
dummy_delete(MAILSTREAM * stream,char * mailbox)411 long dummy_delete (MAILSTREAM *stream,char *mailbox)
412 {
413 struct stat sbuf;
414 char *s,tmp[MAILTMPLEN];
415 if (!mailboxfile (tmp,mailbox)) return dummy_badname (tmp,mailbox);
416 /* no trailing \ */
417 if ((s = strrchr (tmp,'\\')) && !s[1]) *s = '\0';
418 if (stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) == S_IFDIR) ?
419 rmdir (tmp) : unlink (tmp)) {
420 sprintf (tmp,"Can't delete mailbox %s: %s",mailbox,strerror (errno));
421 mm_log (tmp,ERROR);
422 return NIL;
423 }
424 return T; /* return success */
425 }
426
427
428 /* Mail rename mailbox
429 * Accepts: mail stream
430 * old mailbox name
431 * new mailbox name
432 * Returns: T on success, NIL on failure
433 */
434
dummy_rename(MAILSTREAM * stream,char * old,char * newname)435 long dummy_rename (MAILSTREAM *stream,char *old,char *newname)
436 {
437 struct stat sbuf;
438 char c,*s,tmp[MAILTMPLEN],file[MAILTMPLEN];
439 /* make file name */
440 if (!mailboxfile (file,old)) return dummy_badname (tmp,old);
441 /* no trailing \ allowed */
442 if (!(s = mailboxfile (tmp,newname)) || ((s = strrchr (s,'\\')) && !s[1]))
443 return dummy_badname (tmp,newname);
444 if (s) { /* found superior to destination name? */
445 c = *++s; /* remember first character of inferior */
446 *s = '\0'; /* tie off to get just superior */
447 /* name doesn't exist, create it */
448 if ((stat (file,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
449 !dummy_create (stream,file)) return NIL;
450 *s = c; /* restore full name */
451 }
452 if (rename (file,tmp)) {
453 sprintf (tmp,"Can't rename mailbox %s to %s: %s",old,newname,
454 strerror (errno));
455 mm_log (tmp,ERROR);
456 return NIL;
457 }
458 return LONGT; /* return success */
459 }
460
461 /* Dummy open
462 * Accepts: stream to open
463 * Returns: stream on success, NIL on failure
464 */
465
dummy_open(MAILSTREAM * stream)466 MAILSTREAM *dummy_open (MAILSTREAM *stream)
467 {
468 char tmp[MAILTMPLEN];
469 struct stat sbuf;
470 int fd = -1;
471 /* OP_PROTOTYPE call or silence */
472 if (!stream || stream->silent) return NIL;
473 if (!mailboxfile (tmp,stream->mailbox))
474 sprintf (tmp,"Can't open this name: %.80s",stream->mailbox);
475 else if (compare_cstring (stream->mailbox,"INBOX") &&
476 ((fd = open (tmp,O_RDONLY,NIL)) < 0))
477 sprintf (tmp,"%s: %s",strerror (errno),stream->mailbox);
478 else {
479 if (fd >= 0) { /* if got a file */
480 fstat (fd,&sbuf); /* sniff at its size */
481 close (fd);
482 if (sbuf.st_size) sprintf (tmp,"Not a mailbox: %s",stream->mailbox);
483 else fd = -1; /* a-OK */
484 }
485 if (fd < 0) { /* no file, right? */
486 if (!stream->silent) { /* only if silence not requested */
487 /* say there are 0 messages */
488 mail_exists (stream,(long) 0);
489 mail_recent (stream,(long) 0);
490 stream->uid_validity = time (0);
491 }
492 stream->inbox = T; /* note that it's an INBOX */
493 return stream; /* return success */
494 }
495 }
496 mm_log (tmp,stream->silent ? WARN: ERROR);
497 return NIL; /* always fails */
498 }
499
500
501 /* Dummy close
502 * Accepts: MAIL stream
503 * options
504 */
505
dummy_close(MAILSTREAM * stream,long options)506 void dummy_close (MAILSTREAM *stream,long options)
507 {
508 /* return silently */
509 }
510
511 /* Dummy ping mailbox
512 * Accepts: MAIL stream
513 * Returns: T if stream alive, else NIL
514 * No-op for readonly files, since read/writer can expunge it from under us!
515 */
516
dummy_ping(MAILSTREAM * stream)517 long dummy_ping (MAILSTREAM *stream)
518 {
519 MAILSTREAM *test;
520 /* time to do another test? */
521 if (time (0) >= ((time_t) (stream->gensym + 30))) {
522 /* has mailbox format changed? */
523 if ((test = mail_open (NIL,stream->mailbox,OP_PROTOTYPE)) &&
524 (test->dtb != stream->dtb) &&
525 (test = mail_open (NIL,stream->mailbox,NIL))) {
526 /* preserve some resources */
527 test->original_mailbox = stream->original_mailbox;
528 stream->original_mailbox = NIL;
529 test->sparep = stream->sparep;
530 stream->sparep = NIL;
531 test->sequence = stream->sequence;
532 mail_close ((MAILSTREAM *) /* flush resources used by dummy stream */
533 memcpy (fs_get (sizeof (MAILSTREAM)),stream,
534 sizeof (MAILSTREAM)));
535 /* swap the streams */
536 memcpy (stream,test,sizeof (MAILSTREAM));
537 fs_give ((void **) &test);/* flush test now that copied */
538 /* make sure application knows */
539 mail_exists (stream,stream->recent = stream->nmsgs);
540 }
541 /* still hasn't changed */
542 else stream->gensym = time (0);
543 }
544 return T;
545 }
546
547
548 /* Dummy check mailbox
549 * Accepts: MAIL stream
550 * No-op for readonly files, since read/writer can expunge it from under us!
551 */
552
dummy_check(MAILSTREAM * stream)553 void dummy_check (MAILSTREAM *stream)
554 {
555 dummy_ping (stream); /* invoke ping */
556 }
557
558
559 /* Dummy expunge mailbox
560 * Accepts: MAIL stream
561 * sequence to expunge if non-NIL
562 * expunge options
563 * Returns: T, always
564 */
565
dummy_expunge(MAILSTREAM * stream,char * sequence,long options)566 long dummy_expunge (MAILSTREAM *stream,char *sequence,long options)
567 {
568 return LONGT;
569 }
570
571 /* Dummy copy message(s)
572 * Accepts: MAIL stream
573 * sequence
574 * destination mailbox
575 * options
576 * Returns: T if copy successful, else NIL
577 */
578
dummy_copy(MAILSTREAM * stream,char * sequence,char * mailbox,long options)579 long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
580 {
581 if ((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
582 mail_sequence (stream,sequence)) fatal ("Impossible dummy_copy");
583 return NIL;
584 }
585
586
587 /* Dummy append message string
588 * Accepts: mail stream
589 * destination mailbox
590 * append callback function
591 * data for callback
592 * Returns: T on success, NIL on failure
593 */
594
dummy_append(MAILSTREAM * stream,char * mailbox,append_t af,void * data)595 long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
596 {
597 struct stat sbuf;
598 int fd = -1;
599 int e;
600 char tmp[MAILTMPLEN];
601 MAILSTREAM *ts = default_proto (T);
602 if (compare_cstring (mailbox,"INBOX") && mailboxfile (tmp,mailbox) &&
603 ((fd = open (tmp,O_RDONLY,NIL)) < 0)) {
604 if ((e = errno) == ENOENT) /* failed, was it no such file? */
605 mm_notify (stream,"[TRYCREATE] Must create mailbox before append",
606 (long) NIL);
607 sprintf (tmp,"%s: %s",strerror (e),mailbox);
608 mm_log (tmp,ERROR); /* pass up error */
609 return NIL; /* always fails */
610 }
611 if (fd >= 0) { /* found file? */
612 fstat (fd,&sbuf); /* get its size */
613 close (fd); /* toss out the fd */
614 if (sbuf.st_size) ts = NIL; /* non-empty file? */
615 }
616 if (ts) return (*ts->dtb->append) (stream,mailbox,af,data);
617 sprintf (tmp,"Indeterminate mailbox format: %s",mailbox);
618 mm_log (tmp,ERROR);
619 return NIL;
620 }
621
622 /* Return bad file name error message
623 * Accepts: temporary buffer
624 * file name
625 * Returns: long NIL always
626 */
627
dummy_badname(char * tmp,char * s)628 long dummy_badname (char *tmp,char *s)
629 {
630 sprintf (tmp,"Invalid mailbox name: %s",s);
631 mm_log (tmp,ERROR);
632 return (long) NIL;
633 }
634
635
636 /* Dummy canonicalize name
637 * Accepts: buffer to write name
638 * reference
639 * pattern
640 * Returns: T if success, NIL if failure
641 */
642
dummy_canonicalize(char * tmp,char * ref,char * pat)643 long dummy_canonicalize (char *tmp,char *ref,char *pat)
644 {
645 unsigned long i;
646 char *s,dev[4];
647 /* initially no device */
648 dev[0] = dev[1] = dev[2] = dev[3] = '\0';
649 if (ref) switch (*ref) { /* preliminary reference check */
650 case '{': /* remote names not allowed */
651 return NIL; /* disallowed */
652 case '\0': /* empty reference string */
653 break;
654 default: /* all other names */
655 if (ref[1] == ':') { /* start with device name? */
656 dev[0] = *ref++; dev[1] = *ref++;
657 }
658 break;
659 }
660 if (pat[1] == ':') { /* device name in pattern? */
661 dev[0] = *pat++; dev[1] = *pat++;
662 ref = NIL; /* ignore reference */
663 }
664 switch (*pat) {
665 case '#': /* namespace names */
666 if (mailboxfile (tmp,pat)) strcpy (tmp,pat);
667 else return NIL; /* unknown namespace */
668 break;
669 case '{': /* remote names not allowed */
670 return NIL;
671 case '\\': /* rooted name */
672 ref = NIL; /* ignore reference */
673 break;
674 }
675 /* make sure device names are rooted */
676 if (dev[0] && (*(ref ? ref : pat) != '\\')) dev[2] = '\\';
677 /* build name */
678 sprintf (tmp,"%s%s%s",dev,ref ? ref : "",pat);
679 ucase (tmp); /* force upper case */
680 /* count wildcards */
681 for (i = 0, s = tmp; *s; *s++) if ((*s == '*') || (*s == '%')) ++i;
682 if (i > MAXWILDCARDS) { /* ridiculous wildcarding? */
683 MM_LOG ("Excessive wildcards in LIST/LSUB",ERROR);
684 return NIL;
685 }
686 return T;
687 }
688