Commit | Line | Data |
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0756eb3c PH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
c4ceed07 | 5 | /* Copyright (c) University of Cambridge 1995 - 2012 */ |
0756eb3c PH |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | /* Functions in support of the use of maildirsize files for handling quotas in | |
9 | maildir directories. Some of the rules are a bit baroque: | |
10 | ||
11 | http://www.inter7.com/courierimap/README.maildirquota.html | |
12 | ||
13 | We try to follow most of that, except that the directories to skip for quota | |
14 | calculations are not hard wired in, but are supplied as a regex. */ | |
15 | ||
16 | ||
17 | #include "../exim.h" | |
18 | #include "appendfile.h" | |
19 | #include "tf_maildir.h" | |
20 | ||
21 | #define MAX_FILE_SIZE 5120 | |
22 | ||
23 | ||
24 | ||
25 | /************************************************* | |
26 | * Ensure maildir directories exist * | |
27 | *************************************************/ | |
28 | ||
29 | /* This function is called at the start of a maildir delivery, to ensure that | |
d6629cdc PH |
30 | all the relevant directories exist. It also creates a maildirfolder file if the |
31 | base directory matches a given pattern. | |
0756eb3c PH |
32 | |
33 | Argument: | |
34 | path the base directory name | |
35 | addr the address item (for setting an error message) | |
36 | create_directory true if we are allowed to create missing directories | |
37 | dirmode the mode for created directories | |
d6629cdc PH |
38 | maildirfolder_create_regex |
39 | the pattern to match for maildirfolder creation | |
0756eb3c PH |
40 | |
41 | Returns: TRUE on success; FALSE on failure | |
42 | */ | |
43 | ||
44 | BOOL maildir_ensure_directories(uschar *path, address_item *addr, | |
d6629cdc | 45 | BOOL create_directory, int dirmode, uschar *maildirfolder_create_regex) |
0756eb3c PH |
46 | { |
47 | int i; | |
48 | struct stat statbuf; | |
1ba28e2b | 49 | const char *subdirs[] = { "/tmp", "/new", "/cur" }; |
0756eb3c PH |
50 | |
51 | DEBUG(D_transport) | |
52 | debug_printf("ensuring maildir directories exist in %s\n", path); | |
53 | ||
54 | /* First ensure that the path we have is a directory; if it does not exist, | |
55 | create it. Then make sure the tmp, new & cur subdirs of the maildir are | |
d6629cdc | 56 | there. If not, fail. This aborts the delivery (even though the cur subdir is |
0756eb3c PH |
57 | not actually needed for delivery). Handle all 4 directory tests/creates in a |
58 | loop so that code can be shared. */ | |
59 | ||
60 | for (i = 0; i < 4; i++) | |
61 | { | |
62 | int j; | |
1ba28e2b | 63 | const uschar *dir, *mdir; |
0756eb3c PH |
64 | |
65 | if (i == 0) | |
66 | { | |
1ba28e2b | 67 | mdir = CUS""; |
0756eb3c PH |
68 | dir = path; |
69 | } | |
70 | else | |
71 | { | |
1ba28e2b | 72 | mdir = CUS subdirs[i-1]; |
0756eb3c PH |
73 | dir = mdir + 1; |
74 | } | |
75 | ||
76 | /* Check an existing path is a directory. This is inside a loop because | |
77 | there is a potential race condition when creating the directory - some | |
78 | other process may get there first. Give up after trying several times, | |
79 | though. */ | |
80 | ||
81 | for (j = 0; j < 10; j++) | |
82 | { | |
83 | if (Ustat(dir, &statbuf) == 0) | |
84 | { | |
85 | if (S_ISDIR(statbuf.st_mode)) break; /* out of the race loop */ | |
86 | addr->message = string_sprintf("%s%s is not a directory", path, | |
87 | mdir); | |
88 | addr->basic_errno = ERRNO_NOTDIRECTORY; | |
89 | return FALSE; | |
90 | } | |
91 | ||
92 | /* Try to make if non-existent and configured to do so */ | |
93 | ||
94 | if (errno == ENOENT && create_directory) | |
95 | { | |
96 | if (!directory_make(NULL, dir, dirmode, FALSE)) | |
97 | { | |
98 | if (errno == EEXIST) continue; /* repeat the race loop */ | |
99 | addr->message = string_sprintf("cannot create %s%s", path, mdir); | |
100 | addr->basic_errno = errno; | |
101 | return FALSE; | |
102 | } | |
103 | DEBUG(D_transport) | |
104 | debug_printf("created directory %s%s\n", path, mdir); | |
105 | break; /* out of the race loop */ | |
106 | } | |
107 | ||
108 | /* stat() error other than ENOENT, or ENOENT and not creatable */ | |
109 | ||
110 | addr->message = string_sprintf("stat() error for %s%s: %s", path, mdir, | |
111 | strerror(errno)); | |
112 | addr->basic_errno = errno; | |
113 | return FALSE; | |
114 | } | |
115 | ||
116 | /* If we went round the loop 10 times, the directory was flickering in | |
117 | and out of existence like someone in a malfunctioning Star Trek | |
118 | transporter. */ | |
119 | ||
120 | if (j >= 10) | |
121 | { | |
122 | addr->message = string_sprintf("existence of %s%s unclear\n", path, | |
123 | mdir); | |
124 | addr->basic_errno = errno; | |
125 | addr->special_action = SPECIAL_FREEZE; | |
126 | return FALSE; | |
127 | } | |
128 | ||
129 | /* First time through the directories loop, cd to the main directory */ | |
130 | ||
131 | if (i == 0 && Uchdir(path) != 0) | |
132 | { | |
133 | addr->message = string_sprintf ("cannot chdir to %s", path); | |
134 | addr->basic_errno = errno; | |
135 | return FALSE; | |
136 | } | |
137 | } | |
138 | ||
d6629cdc PH |
139 | /* If the basic path matches maildirfolder_create_regex, we are dealing with |
140 | a subfolder, and should ensure that a maildirfolder file exists. */ | |
141 | ||
142 | if (maildirfolder_create_regex != NULL) | |
143 | { | |
144 | const uschar *error; | |
145 | int offset; | |
146 | const pcre *regex; | |
147 | ||
148 | DEBUG(D_transport) debug_printf("checking for maildirfolder requirement\n"); | |
149 | ||
150 | regex = pcre_compile(CS maildirfolder_create_regex, PCRE_COPT, | |
151 | (const char **)&error, &offset, NULL); | |
152 | ||
153 | if (regex == NULL) | |
154 | { | |
155 | addr->message = string_sprintf("appendfile: regular expression " | |
156 | "error: %s at offset %d while compiling %s", error, offset, | |
157 | maildirfolder_create_regex); | |
158 | return FALSE; | |
159 | } | |
160 | ||
161 | if (pcre_exec(regex, NULL, CS path, Ustrlen(path), 0, 0, NULL, 0) >= 0) | |
162 | { | |
163 | uschar *fname = string_sprintf("%s/maildirfolder", path); | |
164 | if (Ustat(fname, &statbuf) == 0) | |
165 | { | |
166 | DEBUG(D_transport) debug_printf("maildirfolder already exists\n"); | |
167 | } | |
168 | else | |
169 | { | |
5f28a6e8 | 170 | int fd = Uopen(fname, O_WRONLY|O_APPEND|O_CREAT, 0600); |
d6629cdc PH |
171 | if (fd < 0) |
172 | { | |
173 | addr->message = string_sprintf("appendfile: failed to create " | |
174 | "maildirfolder file in %s directory: %s", path, strerror(errno)); | |
175 | return FALSE; | |
176 | } | |
177 | (void)close(fd); | |
178 | DEBUG(D_transport) debug_printf("created maildirfolder file\n"); | |
179 | } | |
180 | } | |
181 | else | |
182 | { | |
183 | DEBUG(D_transport) debug_printf("maildirfolder file not required\n"); | |
184 | } | |
185 | } | |
186 | ||
187 | return TRUE; /* Everything exists that should exist */ | |
0756eb3c PH |
188 | } |
189 | ||
190 | ||
191 | ||
192 | ||
193 | /************************************************* | |
194 | * Update maildirsizefile for new file * | |
195 | *************************************************/ | |
196 | ||
197 | /* This function is called to add a new line to the file, recording the length | |
198 | of the newly added message. There isn't much we can do on failure... | |
199 | ||
200 | Arguments: | |
201 | fd the open file descriptor | |
202 | size the size of the message | |
203 | ||
204 | Returns: nothing | |
205 | */ | |
206 | ||
207 | void | |
208 | maildir_record_length(int fd, int size) | |
209 | { | |
210 | int len; | |
211 | uschar buffer[256]; | |
212 | sprintf(CS buffer, "%d 1\n", size); | |
213 | len = Ustrlen(buffer); | |
214 | (void)lseek(fd, 0, SEEK_END); | |
1ac6b2e7 | 215 | len = write(fd, buffer, len); |
0756eb3c PH |
216 | DEBUG(D_transport) |
217 | debug_printf("added '%.*s' to maildirsize file\n", len-1, buffer); | |
218 | } | |
219 | ||
220 | ||
221 | ||
222 | /************************************************* | |
223 | * Find the size of a maildir * | |
224 | *************************************************/ | |
225 | ||
226 | /* This function is called when we have to recalculate the size of a maildir by | |
227 | scanning all the files and directories therein. There are rules and conventions | |
228 | about which files or directories are included. We support this by the use of a | |
229 | regex to match directories that are to be included. | |
230 | ||
231 | Maildirs can only be one level deep. However, this function recurses, so it | |
232 | might cope with deeper nestings. We use the existing check_dir_size() function | |
233 | to add up the sizes of the files in a directory that contains messages. | |
234 | ||
235 | The function returns the most recent timestamp encountered. It can also be run | |
236 | in a dummy mode in which it does not scan for sizes, but just returns the | |
237 | timestamp. | |
238 | ||
239 | Arguments: | |
240 | path the path to the maildir | |
241 | filecount where to store the count of messages | |
242 | latest where to store the latest timestamp encountered | |
243 | regex a regex for getting files sizes from file names | |
244 | dir_regex a regex for matching directories to be included | |
245 | timestamp_only don't actually compute any sizes | |
246 | ||
247 | Returns: the sum of the sizes of the messages | |
248 | */ | |
249 | ||
0d7eb84a | 250 | off_t |
0756eb3c PH |
251 | maildir_compute_size(uschar *path, int *filecount, time_t *latest, |
252 | const pcre *regex, const pcre *dir_regex, BOOL timestamp_only) | |
253 | { | |
254 | DIR *dir; | |
0d7eb84a | 255 | off_t sum = 0; |
0756eb3c PH |
256 | struct dirent *ent; |
257 | struct stat statbuf; | |
258 | ||
259 | dir = opendir(CS path); | |
260 | if (dir == NULL) return 0; | |
261 | ||
262 | while ((ent = readdir(dir)) != NULL) | |
263 | { | |
264 | uschar *name = US ent->d_name; | |
265 | uschar buffer[1024]; | |
266 | ||
267 | if (Ustrcmp(name, ".") == 0 || Ustrcmp(name, "..") == 0) continue; | |
268 | ||
269 | /* We are normally supplied with a regex for choosing which directories to | |
270 | scan. We do the regex match first, because that avoids a stat() for names | |
271 | we aren't interested in. */ | |
272 | ||
273 | if (dir_regex != NULL && | |
274 | pcre_exec(dir_regex, NULL, CS name, Ustrlen(name), 0, 0, NULL, 0) < 0) | |
275 | { | |
276 | DEBUG(D_transport) | |
277 | debug_printf("skipping %s/%s: dir_regex does not match\n", path, name); | |
278 | continue; | |
279 | } | |
280 | ||
281 | /* The name is OK; stat it. */ | |
282 | ||
283 | if (!string_format(buffer, sizeof(buffer), "%s/%s", path, name)) | |
284 | { | |
285 | DEBUG(D_transport) | |
286 | debug_printf("maildir_compute_size: name too long: dir=%s name=%s\n", | |
287 | path, name); | |
288 | continue; | |
289 | } | |
290 | ||
291 | if (Ustat(buffer, &statbuf) < 0) | |
292 | { | |
293 | DEBUG(D_transport) | |
294 | debug_printf("maildir_compute_size: stat error %d for %s: %s\n", errno, | |
295 | buffer, strerror(errno)); | |
296 | continue; | |
297 | } | |
298 | ||
299 | if ((statbuf.st_mode & S_IFMT) != S_IFDIR) | |
300 | { | |
301 | DEBUG(D_transport) | |
302 | debug_printf("skipping %s/%s: not a directory\n", path, name); | |
303 | continue; | |
304 | } | |
305 | ||
306 | /* Keep the latest timestamp encountered */ | |
307 | ||
308 | if (statbuf.st_mtime > *latest) *latest = statbuf.st_mtime; | |
309 | ||
310 | /* If this is a maildir folder, call this function recursively. */ | |
311 | ||
312 | if (name[0] == '.') | |
313 | { | |
314 | sum += maildir_compute_size(buffer, filecount, latest, regex, dir_regex, | |
315 | timestamp_only); | |
316 | } | |
317 | ||
318 | /* Otherwise it must be a folder that contains messages (e.g. new or cur), so | |
319 | we need to get its size, unless all we are interested in is the timestamp. */ | |
320 | ||
321 | else if (!timestamp_only) | |
322 | { | |
323 | sum += check_dir_size(buffer, filecount, regex); | |
324 | } | |
325 | } | |
326 | ||
327 | closedir(dir); | |
328 | DEBUG(D_transport) | |
329 | { | |
330 | if (timestamp_only) | |
331 | debug_printf("maildir_compute_size (timestamp_only): %ld\n", | |
332 | (long int) *latest); | |
333 | else | |
b1c749bb PH |
334 | debug_printf("maildir_compute_size: path=%s\n sum=" OFF_T_FMT |
335 | " filecount=%d timestamp=%ld\n", | |
336 | path, sum, *filecount, (long int) *latest); | |
0756eb3c PH |
337 | } |
338 | return sum; | |
339 | } | |
340 | ||
341 | ||
342 | ||
343 | /************************************************* | |
344 | * Create or update maildirsizefile * | |
345 | *************************************************/ | |
346 | ||
347 | /* This function is called before a delivery if the option to use | |
348 | maildirsizefile is enabled. Its function is to create the file if it does not | |
349 | exist, or to update it if that is necessary. | |
350 | ||
351 | The logic in this function follows the rules that are described in | |
352 | ||
353 | http://www.inter7.com/courierimap/README.maildirquota.html | |
354 | ||
355 | Or, at least, it is supposed to! | |
356 | ||
357 | Arguments: | |
358 | path the path to the maildir directory; this is already backed-up | |
359 | to the parent if the delivery diretory is a maildirfolder | |
360 | ob the appendfile options block | |
361 | regex a compiled regex for getting a file's size from its name | |
362 | dir_regex a compiled regex for selecting maildir directories | |
363 | returned_size where to return the current size of the maildir, even if | |
364 | the maildirsizefile is removed because of a race | |
365 | ||
366 | Returns: >=0 a file descriptor for an open maildirsize file | |
367 | -1 there was an error opening or accessing the file | |
368 | -2 the file was removed because of a race | |
369 | */ | |
370 | ||
371 | int | |
372 | maildir_ensure_sizefile(uschar *path, appendfile_transport_options_block *ob, | |
0d7eb84a | 373 | const pcre *regex, const pcre *dir_regex, off_t *returned_size, |
0756eb3c PH |
374 | int *returned_filecount) |
375 | { | |
376 | int count, fd; | |
0d7eb84a | 377 | off_t cached_quota = 0; |
0756eb3c | 378 | int cached_quota_filecount = 0; |
0756eb3c PH |
379 | int filecount = 0; |
380 | int linecount = 0; | |
0d7eb84a | 381 | off_t size = 0; |
0756eb3c PH |
382 | uschar *filename; |
383 | uschar buffer[MAX_FILE_SIZE]; | |
384 | uschar *ptr = buffer; | |
385 | uschar *endptr; | |
386 | ||
387 | /* Try a few times to open or create the file, in case another process is doing | |
388 | the same thing. */ | |
389 | ||
390 | filename = string_sprintf("%s/maildirsize", path); | |
391 | ||
392 | DEBUG(D_transport) debug_printf("looking for maildirsize in %s\n", path); | |
dc988b7e | 393 | fd = Uopen(filename, O_RDWR|O_APPEND, ob->mode ? ob->mode : 0600); |
0756eb3c PH |
394 | if (fd < 0) |
395 | { | |
396 | if (errno != ENOENT) return -1; | |
397 | DEBUG(D_transport) | |
398 | debug_printf("%s does not exist: recalculating\n", filename); | |
399 | goto RECALCULATE; | |
400 | } | |
401 | ||
402 | /* The file has been successfully opened. Check that the cached quota value is | |
403 | still correct, and that the size of the file is still small enough. If so, | |
404 | compute the maildir size from the file. */ | |
405 | ||
406 | count = read(fd, buffer, sizeof(buffer)); | |
407 | if (count >= sizeof(buffer)) | |
408 | { | |
409 | DEBUG(D_transport) | |
410 | debug_printf("maildirsize file too big (%d): recalculating\n", count); | |
411 | goto RECALCULATE; | |
412 | } | |
413 | buffer[count] = 0; /* Ensure string terminated */ | |
414 | ||
415 | /* Read the quota parameters from the first line of the data. */ | |
416 | ||
417 | DEBUG(D_transport) | |
418 | debug_printf("reading quota parameters from maildirsize data\n"); | |
419 | ||
420 | for (;;) | |
421 | { | |
0d7eb84a | 422 | off_t n = (off_t)Ustrtod(ptr, &endptr); |
0756eb3c PH |
423 | |
424 | /* Only two data items are currently defined; ignore any others that | |
425 | may be present. The spec is for a number followed by a letter. Anything | |
426 | else we reject and recalculate. */ | |
427 | ||
428 | if (*endptr == 'S') cached_quota = n; | |
0d7eb84a | 429 | else if (*endptr == 'C') cached_quota_filecount = (int)n; |
0756eb3c PH |
430 | if (!isalpha(*endptr++)) |
431 | { | |
432 | DEBUG(D_transport) | |
433 | debug_printf("quota parameter number not followed by letter in " | |
434 | "\"%.*s\": recalculating maildirsize\n", (int)(endptr - buffer), | |
435 | buffer); | |
436 | goto RECALCULATE; | |
437 | } | |
438 | if (*endptr == '\n' || *endptr == 0) break; | |
439 | if (*endptr++ != ',') | |
440 | { | |
441 | DEBUG(D_transport) | |
442 | debug_printf("quota parameter not followed by comma in " | |
443 | "\"%.*s\": recalculating maildirsize\n", (int)(endptr - buffer), | |
444 | buffer); | |
445 | goto RECALCULATE; | |
446 | } | |
447 | ptr = endptr; | |
448 | } | |
449 | ||
450 | /* Check the cached values against the current settings */ | |
451 | ||
452 | if (cached_quota != ob->quota_value || | |
453 | cached_quota_filecount != ob->quota_filecount_value) | |
454 | { | |
455 | DEBUG(D_transport) | |
456 | debug_printf("cached quota is out of date: recalculating\n" | |
b1c749bb PH |
457 | " quota=" OFF_T_FMT " cached_quota=" OFF_T_FMT " filecount_quota=%d " |
458 | "cached_quota_filecount=%d\n", ob->quota_value, | |
459 | cached_quota, ob->quota_filecount_value, cached_quota_filecount); | |
0756eb3c PH |
460 | goto RECALCULATE; |
461 | } | |
462 | ||
463 | /* Quota values agree; parse the rest of the data to get the sizes. At this | |
464 | stage, *endptr points either to 0 or to '\n'. */ | |
465 | ||
466 | DEBUG(D_transport) | |
467 | debug_printf("computing maildir size from maildirsize data\n"); | |
468 | ||
469 | while (*endptr++ == '\n') | |
470 | { | |
471 | if (*endptr == 0) break; | |
472 | linecount++; | |
473 | ptr = endptr; | |
0d7eb84a | 474 | size += (off_t)Ustrtod(ptr, &endptr); |
0756eb3c PH |
475 | if (*endptr != ' ') break; |
476 | ptr = endptr + 1; | |
477 | filecount += Ustrtol(ptr, &endptr, 10); | |
478 | } | |
479 | ||
480 | /* If *endptr is zero, we have successfully parsed the file, and we now have | |
481 | the size of the mailbox as cached in the file. The "rules" say that if this | |
482 | value indicates that the mailbox is over quota, we must recalculate if there is | |
62c0818f PH |
483 | more than one entry in the file, or if the file is older than 15 minutes. Also, |
484 | just in case there are weird values in the file, recalculate if either of the | |
485 | values is negative. */ | |
0756eb3c PH |
486 | |
487 | if (*endptr == 0) | |
488 | { | |
8e669ac1 | 489 | if (size < 0 || filecount < 0) |
62c0818f PH |
490 | { |
491 | DEBUG(D_transport) debug_printf("negative value in maildirsize " | |
b1c749bb | 492 | "(size=" OFF_T_FMT " count=%d): recalculating\n", size, filecount); |
8e669ac1 PH |
493 | goto RECALCULATE; |
494 | } | |
495 | ||
0756eb3c PH |
496 | if (ob->quota_value > 0 && |
497 | (size + (ob->quota_is_inclusive? message_size : 0) > ob->quota_value || | |
498 | (ob->quota_filecount_value > 0 && | |
499 | filecount + (ob->quota_is_inclusive ? 1:0) > | |
500 | ob->quota_filecount_value) | |
501 | )) | |
502 | { | |
503 | struct stat statbuf; | |
504 | if (linecount > 1) | |
505 | { | |
62c0818f | 506 | DEBUG(D_transport) debug_printf("over quota and maildirsize has " |
0756eb3c PH |
507 | "more than 1 entry: recalculating\n"); |
508 | goto RECALCULATE; | |
509 | } | |
510 | ||
511 | if (fstat(fd, &statbuf) < 0) goto RECALCULATE; /* Should never occur */ | |
512 | ||
513 | if (time(NULL) - statbuf.st_mtime > 15*60) | |
514 | { | |
515 | DEBUG(D_transport) debug_printf("over quota and maildirsize is older " | |
516 | "than 15 minutes: recalculating\n"); | |
517 | goto RECALCULATE; | |
518 | } | |
519 | } | |
520 | } | |
521 | ||
522 | ||
523 | /* If *endptr is not zero, there was a syntax error in the file. */ | |
524 | ||
525 | else | |
526 | { | |
527 | int len; | |
528 | time_t old_latest, new_latest; | |
529 | uschar *tempname; | |
530 | struct timeval tv; | |
531 | ||
532 | DEBUG(D_transport) | |
533 | { | |
534 | uschar *p = endptr; | |
535 | while (p > buffer && p[-1] != '\n') p--; | |
536 | endptr[1] = 0; | |
537 | ||
538 | debug_printf("error in maildirsizefile: unexpected character %d in " | |
539 | "line %d (starting '%s'): recalculating\n", | |
540 | *endptr, linecount + 1, string_printing(p)); | |
541 | } | |
542 | ||
543 | /* Either there is no file, or the quota value has changed, or the file has | |
544 | got too big, or there was some format error in the file. Recalculate the size | |
545 | and write new contents to a temporary file; then rename it. After any | |
546 | error, just return -1 as the file descriptor. */ | |
547 | ||
548 | RECALCULATE: | |
549 | ||
f1e894f3 | 550 | if (fd >= 0) (void)close(fd); |
0756eb3c PH |
551 | old_latest = 0; |
552 | filecount = 0; | |
553 | size = maildir_compute_size(path, &filecount, &old_latest, regex, dir_regex, | |
554 | FALSE); | |
555 | ||
556 | (void)gettimeofday(&tv, NULL); | |
d0291a0a JH |
557 | tempname = string_sprintf("%s/tmp/" TIME_T_FMT ".H%luP%lu.%s", |
558 | path, tv.tv_sec, tv.tv_usec, (long unsigned) getpid(), primary_hostname); | |
0756eb3c | 559 | |
1da77999 | 560 | fd = Uopen(tempname, O_RDWR|O_CREAT|O_EXCL, ob->mode ? ob->mode : 0600); |
0756eb3c PH |
561 | if (fd >= 0) |
562 | { | |
b1c749bb PH |
563 | (void)sprintf(CS buffer, OFF_T_FMT "S,%dC\n" OFF_T_FMT " %d\n", |
564 | ob->quota_value, ob->quota_filecount_value, size, filecount); | |
0756eb3c PH |
565 | len = Ustrlen(buffer); |
566 | if (write(fd, buffer, len) != len || Urename(tempname, filename) < 0) | |
567 | { | |
f1e894f3 | 568 | (void)close(fd); |
0756eb3c PH |
569 | fd = -1; |
570 | } | |
571 | } | |
572 | ||
573 | /* If any of the directories have been modified since the last timestamp we | |
574 | saw, we have to junk this maildirsize file. */ | |
575 | ||
576 | DEBUG(D_transport) debug_printf("checking subdirectory timestamps\n"); | |
577 | new_latest = 0; | |
578 | (void)maildir_compute_size(path, NULL, &new_latest , NULL, dir_regex, TRUE); | |
579 | if (new_latest > old_latest) | |
580 | { | |
581 | DEBUG(D_transport) debug_printf("abandoning maildirsize because of " | |
582 | "a later subdirectory modification\n"); | |
583 | (void)Uunlink(filename); | |
f1e894f3 | 584 | (void)close(fd); |
660242ad | 585 | fd = -2; |
0756eb3c PH |
586 | } |
587 | } | |
588 | ||
589 | /* Return the sizes and the file descriptor, if any */ | |
590 | ||
b1c749bb PH |
591 | DEBUG(D_transport) debug_printf("returning maildir size=" OFF_T_FMT |
592 | " filecount=%d\n", size, filecount); | |
0756eb3c PH |
593 | *returned_size = size; |
594 | *returned_filecount = filecount; | |
595 | return fd; | |
596 | } | |
597 | ||
598 | /* End of tf_maildir.c */ |