Commit | Line | Data |
---|---|---|
420a0d19 CE |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
2ea97746 | 5 | /* Copyright (c) University of Cambridge 1995 - 2018 */ |
420a0d19 CE |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | ||
9 | /* This single source file is used to compile three utility programs for | |
10 | maintaining Exim hints databases. | |
11 | ||
12 | exim_dumpdb dumps out the contents | |
13 | exim_fixdb patches the database (really for Exim maintenance/testing) | |
14 | exim_tidydb removed obsolete data | |
15 | ||
16 | In all cases, the first argument is the name of the spool directory. The second | |
17 | argument is the name of the database file. The available names are: | |
18 | ||
19 | retry: retry delivery information | |
20 | misc: miscellaneous hints data | |
21 | wait-<t>: message waiting information; <t> is a transport name | |
22 | callout: callout verification cache | |
23 | ||
24 | There are a number of common subroutines, followed by three main programs, | |
25 | whose inclusion is controlled by -D on the compilation command. */ | |
26 | ||
27 | ||
28 | #include "exim.h" | |
29 | ||
30 | ||
31 | /* Identifiers for the different database types. */ | |
32 | ||
33 | #define type_retry 1 | |
34 | #define type_wait 2 | |
35 | #define type_misc 3 | |
36 | #define type_callout 4 | |
37 | #define type_ratelimit 5 | |
38 | ||
39 | ||
40 | /* This is used by our cut-down dbfn_open(). */ | |
41 | ||
42 | uschar *spool_directory; | |
43 | ||
44 | ||
45 | ||
46 | /************************************************* | |
47 | * Berkeley DB error callback * | |
48 | *************************************************/ | |
49 | ||
50 | /* For Berkeley DB >= 2, we can define a function to be called in case of DB | |
51 | errors. This should help with debugging strange DB problems, e.g. getting "File | |
52 | exists" when you try to open a db file. The API changed at release 4.3. */ | |
53 | ||
54 | #if defined(USE_DB) && defined(DB_VERSION_STRING) | |
55 | void | |
56 | #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3) | |
57 | dbfn_bdb_error_callback(const DB_ENV *dbenv, const char *pfx, const char *msg) | |
58 | { | |
59 | dbenv = dbenv; | |
60 | #else | |
61 | dbfn_bdb_error_callback(const char *pfx, char *msg) | |
62 | { | |
63 | #endif | |
64 | pfx = pfx; | |
65 | printf("Berkeley DB error: %s\n", msg); | |
66 | } | |
67 | #endif | |
68 | ||
69 | ||
70 | ||
71 | /************************************************* | |
72 | * SIGALRM handler * | |
73 | *************************************************/ | |
74 | ||
75 | SIGNAL_BOOL sigalrm_seen; | |
76 | ||
77 | void | |
78 | sigalrm_handler(int sig) | |
79 | { | |
80 | sig = sig; /* Keep picky compilers happy */ | |
81 | sigalrm_seen = 1; | |
82 | } | |
83 | ||
84 | ||
85 | ||
86 | /************************************************* | |
87 | * Output usage message and exit * | |
88 | *************************************************/ | |
89 | ||
90 | static void | |
91 | usage(uschar *name, uschar *options) | |
92 | { | |
93 | printf("Usage: exim_%s%s <spool-directory> <database-name>\n", name, options); | |
94 | printf(" <database-name> = retry | misc | wait-<transport-name> | callout | ratelimit\n"); | |
95 | exit(1); | |
96 | } | |
97 | ||
98 | ||
99 | ||
100 | /************************************************* | |
101 | * Sort out the command arguments * | |
102 | *************************************************/ | |
103 | ||
104 | /* This function checks that there are exactly 2 arguments, and checks the | |
105 | second of them to be sure it is a known database name. */ | |
106 | ||
107 | static int | |
108 | check_args(int argc, uschar **argv, uschar *name, uschar *options) | |
109 | { | |
110 | if (argc == 3) | |
111 | { | |
112 | if (Ustrcmp(argv[2], "retry") == 0) return type_retry; | |
113 | if (Ustrcmp(argv[2], "misc") == 0) return type_misc; | |
114 | if (Ustrncmp(argv[2], "wait-", 5) == 0) return type_wait; | |
115 | if (Ustrcmp(argv[2], "callout") == 0) return type_callout; | |
116 | if (Ustrcmp(argv[2], "ratelimit") == 0) return type_ratelimit; | |
117 | } | |
118 | usage(name, options); | |
119 | return -1; /* Never obeyed */ | |
120 | } | |
121 | ||
122 | ||
123 | ||
124 | /************************************************* | |
125 | * Handle attempts to write the log * | |
126 | *************************************************/ | |
127 | ||
128 | /* The message gets written to stderr when log_write() is called from a | |
129 | utility. The message always gets '\n' added on the end of it. These calls come | |
130 | from modules such as store.c when things go drastically wrong (e.g. malloc() | |
131 | failing). In normal use they won't get obeyed. | |
132 | ||
133 | Arguments: | |
134 | selector not relevant when running a utility | |
135 | flags not relevant when running a utility | |
136 | format a printf() format | |
137 | ... arguments for format | |
138 | ||
139 | Returns: nothing | |
140 | */ | |
141 | ||
142 | void | |
143 | log_write(unsigned int selector, int flags, const char *format, ...) | |
144 | { | |
145 | va_list ap; | |
146 | va_start(ap, format); | |
147 | vfprintf(stderr, format, ap); | |
148 | fprintf(stderr, "\n"); | |
149 | va_end(ap); | |
150 | selector = selector; /* Keep picky compilers happy */ | |
151 | flags = flags; | |
152 | } | |
153 | ||
154 | ||
155 | ||
156 | /************************************************* | |
157 | * Format a time value for printing * | |
158 | *************************************************/ | |
159 | ||
160 | static uschar time_buffer[sizeof("09-xxx-1999 hh:mm:ss ")]; | |
161 | ||
162 | uschar * | |
163 | print_time(time_t t) | |
164 | { | |
165 | struct tm *tmstr = localtime(&t); | |
166 | Ustrftime(time_buffer, sizeof(time_buffer), "%d-%b-%Y %H:%M:%S", tmstr); | |
167 | return time_buffer; | |
168 | } | |
169 | ||
170 | ||
171 | ||
172 | /************************************************* | |
173 | * Format a cache value for printing * | |
174 | *************************************************/ | |
175 | ||
176 | uschar * | |
177 | print_cache(int value) | |
178 | { | |
179 | return (value == ccache_accept)? US"accept" : | |
180 | (value == ccache_reject)? US"reject" : | |
181 | US"unknown"; | |
182 | } | |
183 | ||
184 | ||
185 | #ifdef EXIM_FIXDB | |
186 | /************************************************* | |
187 | * Read time value * | |
188 | *************************************************/ | |
189 | ||
190 | static time_t | |
191 | read_time(uschar *s) | |
192 | { | |
193 | uschar *t = s; | |
194 | int field = 0; | |
195 | int value; | |
196 | time_t now = time(NULL); | |
197 | struct tm *tm = localtime(&now); | |
198 | ||
199 | tm->tm_sec = 0; | |
200 | tm->tm_isdst = -1; | |
201 | ||
202 | for (t = s + Ustrlen(s) - 1; t >= s; t--) | |
203 | { | |
204 | if (*t == ':') continue; | |
205 | if (!isdigit((uschar)*t)) return -1; | |
206 | ||
207 | value = *t - '0'; | |
208 | if (--t >= s) | |
209 | { | |
210 | if (!isdigit((uschar)*t)) return -1; | |
211 | value = value + (*t - '0')*10; | |
212 | } | |
213 | ||
214 | switch (field++) | |
215 | { | |
216 | case 0: tm->tm_min = value; break; | |
217 | case 1: tm->tm_hour = value; break; | |
218 | case 2: tm->tm_mday = value; break; | |
219 | case 3: tm->tm_mon = value - 1; break; | |
220 | case 4: tm->tm_year = (value < 90)? value + 100 : value; break; | |
221 | default: return -1; | |
222 | } | |
223 | } | |
224 | ||
225 | return mktime(tm); | |
226 | } | |
227 | #endif /* EXIM_FIXDB */ | |
228 | ||
229 | ||
230 | ||
231 | /************************************************* | |
232 | * Open and lock a database file * | |
233 | *************************************************/ | |
234 | ||
235 | /* This is a cut-down version from the function in dbfn.h that Exim itself | |
236 | uses. We assume the database exists, and therefore give up if we cannot open | |
237 | the lock file. | |
238 | ||
239 | Arguments: | |
240 | name The single-component name of one of Exim's database files. | |
241 | flags O_RDONLY or O_RDWR | |
242 | dbblock Points to an open_db block to be filled in. | |
243 | lof Unused. | |
244 | ||
245 | Returns: NULL if the open failed, or the locking failed. | |
246 | On success, dbblock is returned. This contains the dbm pointer and | |
247 | the fd of the locked lock file. | |
248 | */ | |
249 | ||
250 | open_db * | |
251 | dbfn_open(uschar *name, int flags, open_db *dbblock, BOOL lof) | |
252 | { | |
253 | int rc; | |
254 | struct flock lock_data; | |
255 | BOOL read_only = flags == O_RDONLY; | |
2ea97746 | 256 | uschar * dirname, * filename; |
420a0d19 CE |
257 | |
258 | /* The first thing to do is to open a separate file on which to lock. This | |
259 | ensures that Exim has exclusive use of the database before it even tries to | |
260 | open it. If there is a database, there should be a lock file in existence. */ | |
261 | ||
2ea97746 CE |
262 | #ifdef COMPILE_UTILITY |
263 | if ( asprintf(CSS &dirname, "%s/db", spool_directory) < 0 | |
264 | || asprintf(CSS &filename, "%s/%s.lockfile", dirname, name) < 0) | |
265 | return NULL; | |
266 | #else | |
267 | dirname = string_sprintf("%s/db", spool_directory); | |
268 | filename = string_sprintf("%s/%s.lockfile", dirname, name); | |
269 | #endif | |
420a0d19 | 270 | |
2ea97746 | 271 | dbblock->lockfd = Uopen(filename, flags, 0); |
420a0d19 CE |
272 | if (dbblock->lockfd < 0) |
273 | { | |
2ea97746 | 274 | printf("** Failed to open database lock file %s: %s\n", filename, |
420a0d19 CE |
275 | strerror(errno)); |
276 | return NULL; | |
277 | } | |
278 | ||
279 | /* Now we must get a lock on the opened lock file; do this with a blocking | |
280 | lock that times out. */ | |
281 | ||
2ea97746 | 282 | lock_data.l_type = read_only ? F_RDLCK : F_WRLCK; |
420a0d19 CE |
283 | lock_data.l_whence = lock_data.l_start = lock_data.l_len = 0; |
284 | ||
285 | sigalrm_seen = FALSE; | |
286 | os_non_restarting_signal(SIGALRM, sigalrm_handler); | |
2ea97746 | 287 | ALARM(EXIMDB_LOCK_TIMEOUT); |
420a0d19 | 288 | rc = fcntl(dbblock->lockfd, F_SETLKW, &lock_data); |
2ea97746 | 289 | ALARM_CLR(0); |
420a0d19 CE |
290 | |
291 | if (sigalrm_seen) errno = ETIMEDOUT; | |
292 | if (rc < 0) | |
293 | { | |
294 | printf("** Failed to get %s lock for %s: %s", | |
2ea97746 CE |
295 | flags & O_WRONLY ? "write" : "read", |
296 | filename, | |
297 | errno == ETIMEDOUT ? "timed out" : strerror(errno)); | |
420a0d19 CE |
298 | (void)close(dbblock->lockfd); |
299 | return NULL; | |
300 | } | |
301 | ||
302 | /* At this point we have an opened and locked separate lock file, that is, | |
303 | exclusive access to the database, so we can go ahead and open it. */ | |
304 | ||
2ea97746 CE |
305 | #ifdef COMPILE_UTILITY |
306 | if (asprintf(CSS &filename, "%s/%s", dirname, name) < 0) return NULL; | |
307 | #else | |
308 | filename = string_sprintf("%s/%s", dirname, name); | |
309 | #endif | |
310 | EXIM_DBOPEN(filename, dirname, flags, 0, &(dbblock->dbptr)); | |
420a0d19 | 311 | |
2ea97746 | 312 | if (!dbblock->dbptr) |
420a0d19 | 313 | { |
2ea97746 | 314 | printf("** Failed to open DBM file %s for %s:\n %s%s\n", filename, |
420a0d19 CE |
315 | read_only? "reading" : "writing", strerror(errno), |
316 | #ifdef USE_DB | |
317 | " (or Berkeley DB error while opening)" | |
318 | #else | |
319 | "" | |
320 | #endif | |
321 | ); | |
322 | (void)close(dbblock->lockfd); | |
323 | return NULL; | |
324 | } | |
325 | ||
326 | return dbblock; | |
327 | } | |
328 | ||
329 | ||
330 | ||
331 | ||
332 | /************************************************* | |
333 | * Unlock and close a database file * | |
334 | *************************************************/ | |
335 | ||
336 | /* Closing a file automatically unlocks it, so after closing the database, just | |
337 | close the lock file. | |
338 | ||
339 | Argument: a pointer to an open database block | |
340 | Returns: nothing | |
341 | */ | |
342 | ||
343 | void | |
344 | dbfn_close(open_db *dbblock) | |
345 | { | |
346 | EXIM_DBCLOSE(dbblock->dbptr); | |
347 | (void)close(dbblock->lockfd); | |
348 | } | |
349 | ||
350 | ||
351 | ||
352 | ||
353 | /************************************************* | |
354 | * Read from database file * | |
355 | *************************************************/ | |
356 | ||
357 | /* Passing back the pointer unchanged is useless, because there is no guarantee | |
358 | of alignment. Since all the records used by Exim need to be properly aligned to | |
359 | pick out the timestamps, etc., do the copying centrally here. | |
360 | ||
361 | Arguments: | |
362 | dbblock a pointer to an open database block | |
363 | key the key of the record to be read | |
364 | length where to put the length (or NULL if length not wanted) | |
365 | ||
366 | Returns: a pointer to the retrieved record, or | |
367 | NULL if the record is not found | |
368 | */ | |
369 | ||
370 | void * | |
2ea97746 | 371 | dbfn_read_with_length(open_db *dbblock, const uschar *key, int *length) |
420a0d19 CE |
372 | { |
373 | void *yield; | |
374 | EXIM_DATUM key_datum, result_datum; | |
2ea97746 CE |
375 | int klen = Ustrlen(key) + 1; |
376 | uschar * key_copy = store_get(klen); | |
377 | ||
378 | memcpy(key_copy, key, klen); | |
420a0d19 CE |
379 | |
380 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
381 | EXIM_DATUM_INIT(result_datum); /* to be cleared before use. */ | |
2ea97746 CE |
382 | EXIM_DATUM_DATA(key_datum) = CS key_copy; |
383 | EXIM_DATUM_SIZE(key_datum) = klen; | |
420a0d19 CE |
384 | |
385 | if (!EXIM_DBGET(dbblock->dbptr, key_datum, result_datum)) return NULL; | |
386 | ||
387 | yield = store_get(EXIM_DATUM_SIZE(result_datum)); | |
388 | memcpy(yield, EXIM_DATUM_DATA(result_datum), EXIM_DATUM_SIZE(result_datum)); | |
389 | if (length != NULL) *length = EXIM_DATUM_SIZE(result_datum); | |
390 | ||
391 | EXIM_DATUM_FREE(result_datum); /* Some DBM libs require freeing */ | |
392 | return yield; | |
393 | } | |
394 | ||
395 | ||
396 | ||
397 | #if defined(EXIM_TIDYDB) || defined(EXIM_FIXDB) | |
398 | ||
399 | /************************************************* | |
400 | * Write to database file * | |
401 | *************************************************/ | |
402 | ||
403 | /* | |
404 | Arguments: | |
405 | dbblock a pointer to an open database block | |
406 | key the key of the record to be written | |
407 | ptr a pointer to the record to be written | |
408 | length the length of the record to be written | |
409 | ||
410 | Returns: the yield of the underlying dbm or db "write" function. If this | |
411 | is dbm, the value is zero for OK. | |
412 | */ | |
413 | ||
414 | int | |
2ea97746 | 415 | dbfn_write(open_db *dbblock, const uschar *key, void *ptr, int length) |
420a0d19 CE |
416 | { |
417 | EXIM_DATUM key_datum, value_datum; | |
418 | dbdata_generic *gptr = (dbdata_generic *)ptr; | |
2ea97746 CE |
419 | int klen = Ustrlen(key) + 1; |
420 | uschar * key_copy = store_get(klen); | |
421 | ||
422 | memcpy(key_copy, key, klen); | |
420a0d19 CE |
423 | gptr->time_stamp = time(NULL); |
424 | ||
425 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
426 | EXIM_DATUM_INIT(value_datum); /* to be cleared before use. */ | |
2ea97746 CE |
427 | EXIM_DATUM_DATA(key_datum) = CS key_copy; |
428 | EXIM_DATUM_SIZE(key_datum) = klen; | |
420a0d19 CE |
429 | EXIM_DATUM_DATA(value_datum) = CS ptr; |
430 | EXIM_DATUM_SIZE(value_datum) = length; | |
431 | return EXIM_DBPUT(dbblock->dbptr, key_datum, value_datum); | |
432 | } | |
433 | ||
434 | ||
435 | ||
436 | /************************************************* | |
437 | * Delete record from database file * | |
438 | *************************************************/ | |
439 | ||
440 | /* | |
441 | Arguments: | |
442 | dbblock a pointer to an open database block | |
443 | key the key of the record to be deleted | |
444 | ||
445 | Returns: the yield of the underlying dbm or db "delete" function. | |
446 | */ | |
447 | ||
448 | int | |
2ea97746 | 449 | dbfn_delete(open_db *dbblock, const uschar *key) |
420a0d19 | 450 | { |
2ea97746 CE |
451 | int klen = Ustrlen(key) + 1; |
452 | uschar * key_copy = store_get(klen); | |
453 | ||
454 | memcpy(key_copy, key, klen); | |
420a0d19 CE |
455 | EXIM_DATUM key_datum; |
456 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require clearing */ | |
2ea97746 CE |
457 | EXIM_DATUM_DATA(key_datum) = CS key_copy; |
458 | EXIM_DATUM_SIZE(key_datum) = klen; | |
420a0d19 CE |
459 | return EXIM_DBDEL(dbblock->dbptr, key_datum); |
460 | } | |
461 | ||
462 | #endif /* EXIM_TIDYDB || EXIM_FIXDB */ | |
463 | ||
464 | ||
465 | ||
466 | #if defined(EXIM_DUMPDB) || defined(EXIM_TIDYDB) | |
467 | /************************************************* | |
468 | * Scan the keys of a database file * | |
469 | *************************************************/ | |
470 | ||
471 | /* | |
472 | Arguments: | |
473 | dbblock a pointer to an open database block | |
474 | start TRUE if starting a new scan | |
475 | FALSE if continuing with the current scan | |
476 | cursor a pointer to a pointer to a cursor anchor, for those dbm libraries | |
477 | that use the notion of a cursor | |
478 | ||
479 | Returns: the next record from the file, or | |
480 | NULL if there are no more | |
481 | */ | |
482 | ||
483 | uschar * | |
484 | dbfn_scan(open_db *dbblock, BOOL start, EXIM_CURSOR **cursor) | |
485 | { | |
486 | EXIM_DATUM key_datum, value_datum; | |
487 | uschar *yield; | |
488 | value_datum = value_datum; /* dummy; not all db libraries use this */ | |
489 | ||
490 | /* Some dbm require an initialization */ | |
491 | ||
492 | if (start) EXIM_DBCREATE_CURSOR(dbblock->dbptr, cursor); | |
493 | ||
494 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
495 | EXIM_DATUM_INIT(value_datum); /* to be cleared before use. */ | |
496 | ||
497 | yield = (EXIM_DBSCAN(dbblock->dbptr, key_datum, value_datum, start, *cursor))? | |
498 | US EXIM_DATUM_DATA(key_datum) : NULL; | |
499 | ||
500 | /* Some dbm require a termination */ | |
501 | ||
502 | if (!yield) EXIM_DBDELETE_CURSOR(*cursor); | |
503 | return yield; | |
504 | } | |
505 | #endif /* EXIM_DUMPDB || EXIM_TIDYDB */ | |
506 | ||
507 | ||
508 | ||
509 | #ifdef EXIM_DUMPDB | |
510 | /************************************************* | |
511 | * The exim_dumpdb main program * | |
512 | *************************************************/ | |
513 | ||
514 | int | |
515 | main(int argc, char **cargv) | |
516 | { | |
517 | int dbdata_type = 0; | |
518 | int yield = 0; | |
519 | open_db dbblock; | |
520 | open_db *dbm; | |
521 | EXIM_CURSOR *cursor; | |
522 | uschar **argv = USS cargv; | |
523 | uschar *key; | |
524 | uschar keybuffer[1024]; | |
525 | ||
526 | /* Check the arguments, and open the database */ | |
527 | ||
528 | dbdata_type = check_args(argc, argv, US"dumpdb", US""); | |
529 | spool_directory = argv[1]; | |
2ea97746 CE |
530 | if (!(dbm = dbfn_open(argv[2], O_RDONLY, &dbblock, FALSE))) |
531 | exit(1); | |
420a0d19 CE |
532 | |
533 | /* Scan the file, formatting the information for each entry. Note | |
534 | that data is returned in a malloc'ed block, in order that it be | |
535 | correctly aligned. */ | |
536 | ||
2ea97746 CE |
537 | for (key = dbfn_scan(dbm, TRUE, &cursor); |
538 | key; | |
539 | key = dbfn_scan(dbm, FALSE, &cursor)) | |
420a0d19 CE |
540 | { |
541 | dbdata_retry *retry; | |
542 | dbdata_wait *wait; | |
543 | dbdata_callout_cache *callout; | |
544 | dbdata_ratelimit *ratelimit; | |
545 | dbdata_ratelimit_unique *rate_unique; | |
546 | int count_bad = 0; | |
547 | int i, length; | |
548 | uschar *t; | |
549 | uschar name[MESSAGE_ID_LENGTH + 1]; | |
550 | void *value; | |
551 | ||
552 | /* Keep a copy of the key separate, as in some DBM's the pointer is into data | |
553 | which might change. */ | |
554 | ||
555 | if (Ustrlen(key) > sizeof(keybuffer) - 1) | |
556 | { | |
557 | printf("**** Overlong key encountered: %s\n", key); | |
558 | return 1; | |
559 | } | |
560 | Ustrcpy(keybuffer, key); | |
420a0d19 | 561 | |
2ea97746 | 562 | if (!(value = dbfn_read_with_length(dbm, keybuffer, &length))) |
420a0d19 CE |
563 | fprintf(stderr, "**** Entry \"%s\" was in the key scan, but the record " |
564 | "was not found in the file - something is wrong!\n", | |
565 | CS keybuffer); | |
566 | else | |
567 | { | |
568 | /* Note: don't use print_time more than once in one statement, since | |
569 | it uses a single buffer. */ | |
570 | ||
571 | switch(dbdata_type) | |
572 | { | |
573 | case type_retry: | |
574 | retry = (dbdata_retry *)value; | |
575 | printf(" %s %d %d %s\n%s ", keybuffer, retry->basic_errno, | |
576 | retry->more_errno, retry->text, | |
577 | print_time(retry->first_failed)); | |
578 | printf("%s ", print_time(retry->last_try)); | |
579 | printf("%s %s\n", print_time(retry->next_try), | |
580 | (retry->expired)? "*" : ""); | |
581 | break; | |
582 | ||
583 | case type_wait: | |
584 | wait = (dbdata_wait *)value; | |
585 | printf("%s ", keybuffer); | |
586 | t = wait->text; | |
587 | name[MESSAGE_ID_LENGTH] = 0; | |
588 | ||
589 | if (wait->count > WAIT_NAME_MAX) | |
590 | { | |
591 | fprintf(stderr, | |
592 | "**** Data for %s corrupted\n count=%d=0x%x max=%d\n", | |
593 | CS keybuffer, wait->count, wait->count, WAIT_NAME_MAX); | |
594 | wait->count = WAIT_NAME_MAX; | |
595 | yield = count_bad = 1; | |
596 | } | |
597 | for (i = 1; i <= wait->count; i++) | |
598 | { | |
599 | Ustrncpy(name, t, MESSAGE_ID_LENGTH); | |
600 | if (count_bad && name[0] == 0) break; | |
601 | if (Ustrlen(name) != MESSAGE_ID_LENGTH || | |
602 | Ustrspn(name, "0123456789" | |
603 | "abcdefghijklmnopqrstuvwxyz" | |
604 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ-") != MESSAGE_ID_LENGTH) | |
605 | { | |
606 | int j; | |
607 | fprintf(stderr, | |
608 | "**** Data for %s corrupted: bad character in message id\n", | |
609 | CS keybuffer); | |
610 | for (j = 0; j < MESSAGE_ID_LENGTH; j++) | |
611 | fprintf(stderr, "%02x ", name[j]); | |
612 | fprintf(stderr, "\n"); | |
613 | yield = 1; | |
614 | break; | |
615 | } | |
616 | printf("%s ", name); | |
617 | t += MESSAGE_ID_LENGTH; | |
618 | } | |
619 | printf("\n"); | |
620 | break; | |
621 | ||
622 | case type_misc: | |
623 | printf("%s %s\n", print_time(((dbdata_generic *)value)->time_stamp), | |
624 | keybuffer); | |
625 | break; | |
626 | ||
627 | case type_callout: | |
628 | callout = (dbdata_callout_cache *)value; | |
629 | ||
630 | /* New-style address record */ | |
631 | ||
632 | if (length == sizeof(dbdata_callout_cache_address)) | |
633 | { | |
634 | printf("%s %s callout=%s\n", | |
635 | print_time(((dbdata_generic *)value)->time_stamp), | |
636 | keybuffer, | |
637 | print_cache(callout->result)); | |
638 | } | |
639 | ||
640 | /* New-style domain record */ | |
641 | ||
642 | else if (length == sizeof(dbdata_callout_cache)) | |
643 | { | |
644 | printf("%s %s callout=%s postmaster=%s", | |
645 | print_time(((dbdata_generic *)value)->time_stamp), | |
646 | keybuffer, | |
647 | print_cache(callout->result), | |
648 | print_cache(callout->postmaster_result)); | |
649 | if (callout->postmaster_result != ccache_unknown) | |
650 | printf(" (%s)", print_time(callout->postmaster_stamp)); | |
651 | printf(" random=%s", print_cache(callout->random_result)); | |
652 | if (callout->random_result != ccache_unknown) | |
653 | printf(" (%s)", print_time(callout->random_stamp)); | |
654 | printf("\n"); | |
655 | } | |
656 | ||
420a0d19 CE |
657 | break; |
658 | ||
659 | case type_ratelimit: | |
660 | if (Ustrstr(key, "/unique/") != NULL && length >= sizeof(*rate_unique)) | |
661 | { | |
662 | ratelimit = (dbdata_ratelimit *)value; | |
663 | rate_unique = (dbdata_ratelimit_unique *)value; | |
664 | printf("%s.%06d rate: %10.3f epoch: %s size: %u key: %s\n", | |
665 | print_time(ratelimit->time_stamp), | |
666 | ratelimit->time_usec, ratelimit->rate, | |
667 | print_time(rate_unique->bloom_epoch), rate_unique->bloom_size, | |
668 | keybuffer); | |
669 | } | |
670 | else | |
671 | { | |
672 | ratelimit = (dbdata_ratelimit *)value; | |
673 | printf("%s.%06d rate: %10.3f key: %s\n", | |
674 | print_time(ratelimit->time_stamp), | |
675 | ratelimit->time_usec, ratelimit->rate, | |
676 | keybuffer); | |
677 | } | |
678 | break; | |
679 | } | |
680 | store_reset(value); | |
681 | } | |
420a0d19 CE |
682 | } |
683 | ||
684 | dbfn_close(dbm); | |
685 | return yield; | |
686 | } | |
687 | ||
688 | #endif /* EXIM_DUMPDB */ | |
689 | ||
690 | ||
691 | ||
692 | ||
693 | #ifdef EXIM_FIXDB | |
694 | /************************************************* | |
695 | * The exim_fixdb main program * | |
696 | *************************************************/ | |
697 | ||
698 | /* In order not to hold the database lock any longer than is necessary, each | |
699 | operation on the database uses a separate open/close call. This is expensive, | |
700 | but then using this utility is not expected to be very common. Its main use is | |
701 | to provide a way of patching up hints databases in order to run tests. | |
702 | ||
703 | Syntax of commands: | |
704 | ||
705 | (1) <record name> | |
706 | This causes the data from the given record to be displayed, or "not found" | |
707 | to be output. Note that in the retry database, destination names are | |
708 | preceded by R: or T: for router or transport retry info. | |
709 | ||
710 | (2) <record name> d | |
711 | This causes the given record to be deleted or "not found" to be output. | |
712 | ||
713 | (3) <record name> <field number> <value> | |
714 | This sets the given value into the given field, identified by a number | |
715 | which is output by the display command. Not all types of record can | |
716 | be changed. | |
717 | ||
718 | (4) q | |
719 | This exits from exim_fixdb. | |
720 | ||
721 | If the record name is omitted from (2) or (3), the previously used record name | |
722 | is re-used. */ | |
723 | ||
724 | ||
725 | int main(int argc, char **cargv) | |
726 | { | |
727 | int dbdata_type; | |
728 | uschar **argv = USS cargv; | |
729 | uschar buffer[256]; | |
730 | uschar name[256]; | |
731 | void *reset_point = store_get(0); | |
732 | ||
733 | name[0] = 0; /* No name set */ | |
734 | ||
735 | /* Sort out the database type, verify what we are working on and then process | |
736 | user requests */ | |
737 | ||
738 | dbdata_type = check_args(argc, argv, US"fixdb", US""); | |
739 | printf("Modifying Exim hints database %s/db/%s\n", argv[1], argv[2]); | |
740 | ||
741 | for(;;) | |
742 | { | |
743 | open_db dbblock; | |
744 | open_db *dbm; | |
745 | void *record; | |
746 | dbdata_retry *retry; | |
747 | dbdata_wait *wait; | |
748 | dbdata_callout_cache *callout; | |
749 | dbdata_ratelimit *ratelimit; | |
750 | dbdata_ratelimit_unique *rate_unique; | |
751 | int i, oldlength; | |
752 | uschar *t; | |
753 | uschar field[256], value[256]; | |
754 | ||
755 | store_reset(reset_point); | |
756 | ||
757 | printf("> "); | |
758 | if (Ufgets(buffer, 256, stdin) == NULL) break; | |
759 | ||
760 | buffer[Ustrlen(buffer)-1] = 0; | |
761 | field[0] = value[0] = 0; | |
762 | ||
763 | /* If the buffer contains just one digit, or just consists of "d", use the | |
764 | previous name for an update. */ | |
765 | ||
766 | if ((isdigit((uschar)buffer[0]) && (buffer[1] == ' ' || buffer[1] == '\0')) | |
767 | || Ustrcmp(buffer, "d") == 0) | |
768 | { | |
769 | if (name[0] == 0) | |
770 | { | |
771 | printf("No previous record name is set\n"); | |
772 | continue; | |
773 | } | |
774 | (void)sscanf(CS buffer, "%s %s", field, value); | |
775 | } | |
776 | else | |
777 | { | |
778 | name[0] = 0; | |
779 | (void)sscanf(CS buffer, "%s %s %s", name, field, value); | |
780 | } | |
781 | ||
782 | /* Handle an update request */ | |
783 | ||
784 | if (field[0] != 0) | |
785 | { | |
786 | int verify = 1; | |
787 | spool_directory = argv[1]; | |
2ea97746 CE |
788 | |
789 | if (!(dbm = dbfn_open(argv[2], O_RDWR, &dbblock, FALSE))) | |
790 | continue; | |
420a0d19 CE |
791 | |
792 | if (Ustrcmp(field, "d") == 0) | |
793 | { | |
794 | if (value[0] != 0) printf("unexpected value after \"d\"\n"); | |
795 | else printf("%s\n", (dbfn_delete(dbm, name) < 0)? | |
796 | "not found" : "deleted"); | |
797 | dbfn_close(dbm); | |
798 | continue; | |
799 | } | |
800 | ||
801 | else if (isdigit((uschar)field[0])) | |
802 | { | |
803 | int fieldno = Uatoi(field); | |
804 | if (value[0] == 0) | |
805 | { | |
806 | printf("value missing\n"); | |
807 | dbfn_close(dbm); | |
808 | continue; | |
809 | } | |
810 | else | |
811 | { | |
812 | record = dbfn_read_with_length(dbm, name, &oldlength); | |
813 | if (record == NULL) printf("not found\n"); else | |
814 | { | |
815 | time_t tt; | |
2ea97746 | 816 | /*int length = 0; Stops compiler warning */ |
420a0d19 CE |
817 | |
818 | switch(dbdata_type) | |
819 | { | |
820 | case type_retry: | |
821 | retry = (dbdata_retry *)record; | |
2ea97746 | 822 | /* length = sizeof(dbdata_retry) + Ustrlen(retry->text); */ |
420a0d19 CE |
823 | |
824 | switch(fieldno) | |
825 | { | |
826 | case 0: | |
827 | retry->basic_errno = Uatoi(value); | |
828 | break; | |
829 | ||
830 | case 1: | |
831 | retry->more_errno = Uatoi(value); | |
832 | break; | |
833 | ||
834 | case 2: | |
835 | if ((tt = read_time(value)) > 0) retry->first_failed = tt; | |
836 | else printf("bad time value\n"); | |
837 | break; | |
838 | ||
839 | case 3: | |
840 | if ((tt = read_time(value)) > 0) retry->last_try = tt; | |
841 | else printf("bad time value\n"); | |
842 | break; | |
843 | ||
844 | case 4: | |
845 | if ((tt = read_time(value)) > 0) retry->next_try = tt; | |
846 | else printf("bad time value\n"); | |
847 | break; | |
848 | ||
849 | case 5: | |
850 | if (Ustrcmp(value, "yes") == 0) retry->expired = TRUE; | |
851 | else if (Ustrcmp(value, "no") == 0) retry->expired = FALSE; | |
852 | else printf("\"yes\" or \"no\" expected=n"); | |
853 | break; | |
854 | ||
855 | default: | |
856 | printf("unknown field number\n"); | |
857 | verify = 0; | |
858 | break; | |
859 | } | |
860 | break; | |
861 | ||
862 | case type_wait: | |
863 | printf("Can't change contents of wait database record\n"); | |
864 | break; | |
865 | ||
866 | case type_misc: | |
867 | printf("Can't change contents of misc database record\n"); | |
868 | break; | |
869 | ||
870 | case type_callout: | |
871 | callout = (dbdata_callout_cache *)record; | |
2ea97746 | 872 | /* length = sizeof(dbdata_callout_cache); */ |
420a0d19 CE |
873 | switch(fieldno) |
874 | { | |
875 | case 0: | |
876 | callout->result = Uatoi(value); | |
877 | break; | |
878 | ||
879 | case 1: | |
880 | callout->postmaster_result = Uatoi(value); | |
881 | break; | |
882 | ||
883 | case 2: | |
884 | callout->random_result = Uatoi(value); | |
885 | break; | |
886 | ||
887 | default: | |
888 | printf("unknown field number\n"); | |
889 | verify = 0; | |
890 | break; | |
891 | } | |
892 | break; | |
893 | ||
894 | case type_ratelimit: | |
895 | ratelimit = (dbdata_ratelimit *)record; | |
896 | switch(fieldno) | |
897 | { | |
898 | case 0: | |
899 | if ((tt = read_time(value)) > 0) ratelimit->time_stamp = tt; | |
900 | else printf("bad time value\n"); | |
901 | break; | |
902 | ||
903 | case 1: | |
904 | ratelimit->time_usec = Uatoi(value); | |
905 | break; | |
906 | ||
907 | case 2: | |
908 | ratelimit->rate = Ustrtod(value, NULL); | |
909 | break; | |
910 | ||
911 | case 3: | |
912 | if (Ustrstr(name, "/unique/") != NULL | |
913 | && oldlength >= sizeof(dbdata_ratelimit_unique)) | |
914 | { | |
915 | rate_unique = (dbdata_ratelimit_unique *)record; | |
916 | if ((tt = read_time(value)) > 0) rate_unique->bloom_epoch = tt; | |
917 | else printf("bad time value\n"); | |
918 | break; | |
919 | } | |
920 | /* else fall through */ | |
921 | ||
922 | case 4: | |
923 | case 5: | |
924 | if (Ustrstr(name, "/unique/") != NULL | |
925 | && oldlength >= sizeof(dbdata_ratelimit_unique)) | |
926 | { | |
927 | /* see acl.c */ | |
928 | BOOL seen; | |
929 | unsigned n, hash, hinc; | |
930 | uschar md5sum[16]; | |
931 | md5 md5info; | |
932 | md5_start(&md5info); | |
933 | md5_end(&md5info, value, Ustrlen(value), md5sum); | |
934 | hash = md5sum[0] << 0 | md5sum[1] << 8 | |
935 | | md5sum[2] << 16 | md5sum[3] << 24; | |
936 | hinc = md5sum[4] << 0 | md5sum[5] << 8 | |
937 | | md5sum[6] << 16 | md5sum[7] << 24; | |
938 | rate_unique = (dbdata_ratelimit_unique *)record; | |
939 | seen = TRUE; | |
940 | for (n = 0; n < 8; n++, hash += hinc) | |
941 | { | |
942 | int bit = 1 << (hash % 8); | |
943 | int byte = (hash / 8) % rate_unique->bloom_size; | |
944 | if ((rate_unique->bloom[byte] & bit) == 0) | |
945 | { | |
946 | seen = FALSE; | |
947 | if (fieldno == 5) rate_unique->bloom[byte] |= bit; | |
948 | } | |
949 | } | |
950 | printf("%s %s\n", | |
951 | seen ? "seen" : fieldno == 5 ? "added" : "unseen", value); | |
952 | break; | |
953 | } | |
954 | /* else fall through */ | |
955 | ||
956 | default: | |
957 | printf("unknown field number\n"); | |
958 | verify = 0; | |
959 | break; | |
960 | } | |
961 | break; | |
962 | } | |
963 | ||
964 | dbfn_write(dbm, name, record, oldlength); | |
965 | } | |
966 | } | |
967 | } | |
968 | ||
969 | else | |
970 | { | |
971 | printf("field number or d expected\n"); | |
972 | verify = 0; | |
973 | } | |
974 | ||
975 | dbfn_close(dbm); | |
976 | if (!verify) continue; | |
977 | } | |
978 | ||
979 | /* The "name" q causes an exit */ | |
980 | ||
981 | else if (Ustrcmp(name, "q") == 0) return 0; | |
982 | ||
983 | /* Handle a read request, or verify after an update. */ | |
984 | ||
985 | spool_directory = argv[1]; | |
2ea97746 CE |
986 | if (!(dbm = dbfn_open(argv[2], O_RDONLY, &dbblock, FALSE))) |
987 | continue; | |
420a0d19 | 988 | |
2ea97746 | 989 | if (!(record = dbfn_read_with_length(dbm, name, &oldlength))) |
420a0d19 CE |
990 | { |
991 | printf("record %s not found\n", name); | |
992 | name[0] = 0; | |
993 | } | |
994 | else | |
995 | { | |
996 | int count_bad = 0; | |
997 | printf("%s\n", CS print_time(((dbdata_generic *)record)->time_stamp)); | |
998 | switch(dbdata_type) | |
999 | { | |
1000 | case type_retry: | |
1001 | retry = (dbdata_retry *)record; | |
1002 | printf("0 error number: %d %s\n", retry->basic_errno, retry->text); | |
1003 | printf("1 extra data: %d\n", retry->more_errno); | |
1004 | printf("2 first failed: %s\n", print_time(retry->first_failed)); | |
1005 | printf("3 last try: %s\n", print_time(retry->last_try)); | |
1006 | printf("4 next try: %s\n", print_time(retry->next_try)); | |
1007 | printf("5 expired: %s\n", (retry->expired)? "yes" : "no"); | |
1008 | break; | |
1009 | ||
1010 | case type_wait: | |
1011 | wait = (dbdata_wait *)record; | |
1012 | t = wait->text; | |
1013 | printf("Sequence: %d\n", wait->sequence); | |
1014 | if (wait->count > WAIT_NAME_MAX) | |
1015 | { | |
1016 | printf("**** Data corrupted: count=%d=0x%x max=%d ****\n", wait->count, | |
1017 | wait->count, WAIT_NAME_MAX); | |
1018 | wait->count = WAIT_NAME_MAX; | |
1019 | count_bad = 1; | |
1020 | } | |
1021 | for (i = 1; i <= wait->count; i++) | |
1022 | { | |
1023 | Ustrncpy(value, t, MESSAGE_ID_LENGTH); | |
1024 | value[MESSAGE_ID_LENGTH] = 0; | |
1025 | if (count_bad && value[0] == 0) break; | |
1026 | if (Ustrlen(value) != MESSAGE_ID_LENGTH || | |
1027 | Ustrspn(value, "0123456789" | |
1028 | "abcdefghijklmnopqrstuvwxyz" | |
1029 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ-") != MESSAGE_ID_LENGTH) | |
1030 | { | |
1031 | int j; | |
1032 | printf("\n**** Data corrupted: bad character in message id ****\n"); | |
1033 | for (j = 0; j < MESSAGE_ID_LENGTH; j++) | |
1034 | printf("%02x ", value[j]); | |
1035 | printf("\n"); | |
1036 | break; | |
1037 | } | |
1038 | printf("%s ", value); | |
1039 | t += MESSAGE_ID_LENGTH; | |
1040 | } | |
1041 | printf("\n"); | |
1042 | break; | |
1043 | ||
1044 | case type_misc: | |
1045 | break; | |
1046 | ||
1047 | case type_callout: | |
1048 | callout = (dbdata_callout_cache *)record; | |
1049 | printf("0 callout: %s (%d)\n", print_cache(callout->result), | |
1050 | callout->result); | |
1051 | if (oldlength > sizeof(dbdata_callout_cache_address)) | |
1052 | { | |
1053 | printf("1 postmaster: %s (%d)\n", print_cache(callout->postmaster_result), | |
1054 | callout->postmaster_result); | |
1055 | printf("2 random: %s (%d)\n", print_cache(callout->random_result), | |
1056 | callout->random_result); | |
1057 | } | |
1058 | break; | |
1059 | ||
1060 | case type_ratelimit: | |
1061 | ratelimit = (dbdata_ratelimit *)record; | |
1062 | printf("0 time stamp: %s\n", print_time(ratelimit->time_stamp)); | |
1063 | printf("1 fract. time: .%06d\n", ratelimit->time_usec); | |
1064 | printf("2 sender rate: % .3f\n", ratelimit->rate); | |
1065 | if (Ustrstr(name, "/unique/") != NULL | |
1066 | && oldlength >= sizeof(dbdata_ratelimit_unique)) | |
1067 | { | |
1068 | rate_unique = (dbdata_ratelimit_unique *)record; | |
1069 | printf("3 filter epoch: %s\n", print_time(rate_unique->bloom_epoch)); | |
1070 | printf("4 test filter membership\n"); | |
1071 | printf("5 add element to filter\n"); | |
1072 | } | |
1073 | break; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | /* The database is closed after each request */ | |
1078 | ||
1079 | dbfn_close(dbm); | |
1080 | } | |
1081 | ||
1082 | printf("\n"); | |
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | #endif /* EXIM_FIXDB */ | |
1087 | ||
1088 | ||
1089 | ||
1090 | #ifdef EXIM_TIDYDB | |
1091 | /************************************************* | |
1092 | * The exim_tidydb main program * | |
1093 | *************************************************/ | |
1094 | ||
1095 | ||
1096 | /* Utility program to tidy the contents of an exim database file. There is one | |
1097 | option: | |
1098 | ||
1099 | -t <time> expiry time for old records - default 30 days | |
1100 | ||
1101 | For backwards compatibility, an -f option is recognized and ignored. (It used | |
1102 | to request a "full" tidy. This version always does the whole job.) */ | |
1103 | ||
1104 | ||
1105 | typedef struct key_item { | |
1106 | struct key_item *next; | |
1107 | uschar key[1]; | |
1108 | } key_item; | |
1109 | ||
1110 | ||
1111 | int main(int argc, char **cargv) | |
1112 | { | |
1113 | struct stat statbuf; | |
1114 | int maxkeep = 30 * 24 * 60 * 60; | |
1115 | int dbdata_type, i, oldest, path_len; | |
1116 | key_item *keychain = NULL; | |
1117 | void *reset_point; | |
1118 | open_db dbblock; | |
1119 | open_db *dbm; | |
1120 | EXIM_CURSOR *cursor; | |
1121 | uschar **argv = USS cargv; | |
1122 | uschar buffer[256]; | |
1123 | uschar *key; | |
1124 | ||
1125 | /* Scan the options */ | |
1126 | ||
1127 | for (i = 1; i < argc; i++) | |
1128 | { | |
1129 | if (argv[i][0] != '-') break; | |
1130 | if (Ustrcmp(argv[i], "-f") == 0) continue; | |
1131 | if (Ustrcmp(argv[i], "-t") == 0) | |
1132 | { | |
1133 | uschar *s; | |
1134 | s = argv[++i]; | |
1135 | maxkeep = 0; | |
1136 | while (*s != 0) | |
1137 | { | |
1138 | int value, count; | |
1139 | if (!isdigit(*s)) usage(US"tidydb", US" [-t <time>]"); | |
1140 | (void)sscanf(CS s, "%d%n", &value, &count); | |
1141 | s += count; | |
1142 | switch (*s) | |
1143 | { | |
1144 | case 'w': value *= 7; | |
1145 | case 'd': value *= 24; | |
1146 | case 'h': value *= 60; | |
1147 | case 'm': value *= 60; | |
1148 | case 's': s++; | |
1149 | break; | |
1150 | default: usage(US"tidydb", US" [-t <time>]"); | |
1151 | } | |
1152 | maxkeep += value; | |
1153 | } | |
1154 | } | |
1155 | else usage(US"tidydb", US" [-t <time>]"); | |
1156 | } | |
1157 | ||
1158 | /* Adjust argument values and process arguments */ | |
1159 | ||
1160 | argc -= --i; | |
1161 | argv += i; | |
1162 | ||
1163 | dbdata_type = check_args(argc, argv, US"tidydb", US" [-t <time>]"); | |
1164 | ||
1165 | /* Compute the oldest keep time, verify what we are doing, and open the | |
1166 | database */ | |
1167 | ||
1168 | oldest = time(NULL) - maxkeep; | |
1169 | printf("Tidying Exim hints database %s/db/%s\n", argv[1], argv[2]); | |
1170 | ||
1171 | spool_directory = argv[1]; | |
2ea97746 CE |
1172 | if (!(dbm = dbfn_open(argv[2], O_RDWR, &dbblock, FALSE))) |
1173 | exit(1); | |
420a0d19 CE |
1174 | |
1175 | /* Prepare for building file names */ | |
1176 | ||
1177 | sprintf(CS buffer, "%s/input/", argv[1]); | |
1178 | path_len = Ustrlen(buffer); | |
1179 | ||
1180 | ||
1181 | /* It appears, by experiment, that it is a bad idea to make changes | |
1182 | to the file while scanning it. Pity the man page doesn't warn you about that. | |
1183 | Therefore, we scan and build a list of all the keys. Then we use that to | |
1184 | read the records and possibly update them. */ | |
1185 | ||
2ea97746 CE |
1186 | for (key = dbfn_scan(dbm, TRUE, &cursor); |
1187 | key; | |
1188 | key = dbfn_scan(dbm, FALSE, &cursor)) | |
420a0d19 CE |
1189 | { |
1190 | key_item *k = store_get(sizeof(key_item) + Ustrlen(key)); | |
1191 | k->next = keychain; | |
1192 | keychain = k; | |
1193 | Ustrcpy(k->key, key); | |
420a0d19 CE |
1194 | } |
1195 | ||
1196 | /* Now scan the collected keys and operate on the records, resetting | |
1197 | the store each time round. */ | |
1198 | ||
1199 | reset_point = store_get(0); | |
1200 | ||
2ea97746 | 1201 | while (keychain) |
420a0d19 CE |
1202 | { |
1203 | dbdata_generic *value; | |
1204 | ||
1205 | store_reset(reset_point); | |
1206 | key = keychain->key; | |
1207 | keychain = keychain->next; | |
1208 | value = dbfn_read_with_length(dbm, key, NULL); | |
1209 | ||
1210 | /* A continuation record may have been deleted or renamed already, so | |
1211 | non-existence is not serious. */ | |
1212 | ||
1213 | if (value == NULL) continue; | |
1214 | ||
1215 | /* Delete if too old */ | |
1216 | ||
1217 | if (value->time_stamp < oldest) | |
1218 | { | |
1219 | printf("deleted %s (too old)\n", key); | |
1220 | dbfn_delete(dbm, key); | |
1221 | continue; | |
1222 | } | |
1223 | ||
1224 | /* Do database-specific tidying for wait databases, and message- | |
1225 | specific tidying for the retry database. */ | |
1226 | ||
1227 | if (dbdata_type == type_wait) | |
1228 | { | |
1229 | dbdata_wait *wait = (dbdata_wait *)value; | |
1230 | BOOL update = FALSE; | |
1231 | ||
1232 | /* Leave corrupt records alone */ | |
1233 | ||
1234 | if (wait->count > WAIT_NAME_MAX) | |
1235 | { | |
1236 | printf("**** Data for %s corrupted\n count=%d=0x%x max=%d\n", | |
1237 | key, wait->count, wait->count, WAIT_NAME_MAX); | |
1238 | continue; | |
1239 | } | |
1240 | ||
1241 | /* Loop for renamed continuation records. For each message id, | |
1242 | check to see if the message exists, and if not, remove its entry | |
1243 | from the record. Because of the possibility of split input directories, | |
1244 | we must look in both possible places for a -D file. */ | |
1245 | ||
1246 | for (;;) | |
1247 | { | |
1248 | int offset; | |
1249 | int length = wait->count * MESSAGE_ID_LENGTH; | |
1250 | ||
1251 | for (offset = length - MESSAGE_ID_LENGTH; | |
1252 | offset >= 0; offset -= MESSAGE_ID_LENGTH) | |
1253 | { | |
1254 | Ustrncpy(buffer+path_len, wait->text + offset, MESSAGE_ID_LENGTH); | |
1255 | sprintf(CS(buffer+path_len + MESSAGE_ID_LENGTH), "-D"); | |
1256 | ||
1257 | if (Ustat(buffer, &statbuf) != 0) | |
1258 | { | |
1259 | buffer[path_len] = wait->text[offset+5]; | |
1260 | buffer[path_len+1] = '/'; | |
1261 | Ustrncpy(buffer+path_len+2, wait->text + offset, MESSAGE_ID_LENGTH); | |
1262 | sprintf(CS(buffer+path_len+2 + MESSAGE_ID_LENGTH), "-D"); | |
1263 | ||
1264 | if (Ustat(buffer, &statbuf) != 0) | |
1265 | { | |
1266 | int left = length - offset - MESSAGE_ID_LENGTH; | |
1267 | if (left > 0) Ustrncpy(wait->text + offset, | |
1268 | wait->text + offset + MESSAGE_ID_LENGTH, left); | |
1269 | wait->count--; | |
1270 | length -= MESSAGE_ID_LENGTH; | |
1271 | update = TRUE; | |
1272 | } | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* If record is empty and the main record, either delete it or rename | |
1277 | the next continuation, repeating if that is also empty. */ | |
1278 | ||
1279 | if (wait->count == 0 && Ustrchr(key, ':') == NULL) | |
1280 | { | |
1281 | while (wait->count == 0 && wait->sequence > 0) | |
1282 | { | |
1283 | uschar newkey[256]; | |
1284 | dbdata_generic *newvalue; | |
1285 | sprintf(CS newkey, "%s:%d", key, wait->sequence - 1); | |
1286 | newvalue = dbfn_read_with_length(dbm, newkey, NULL); | |
1287 | if (newvalue != NULL) | |
1288 | { | |
1289 | value = newvalue; | |
1290 | wait = (dbdata_wait *)newvalue; | |
1291 | dbfn_delete(dbm, newkey); | |
1292 | printf("renamed %s\n", newkey); | |
1293 | update = TRUE; | |
1294 | } | |
1295 | else wait->sequence--; | |
1296 | } | |
1297 | ||
1298 | /* If we have ended up with an empty main record, delete it | |
1299 | and break the loop. Otherwise the new record will be scanned. */ | |
1300 | ||
1301 | if (wait->count == 0 && wait->sequence == 0) | |
1302 | { | |
1303 | dbfn_delete(dbm, key); | |
1304 | printf("deleted %s (empty)\n", key); | |
1305 | update = FALSE; | |
1306 | break; | |
1307 | } | |
1308 | } | |
1309 | ||
1310 | /* If not an empty main record, break the loop */ | |
1311 | ||
1312 | else break; | |
1313 | } | |
1314 | ||
1315 | /* Re-write the record if required */ | |
1316 | ||
1317 | if (update) | |
1318 | { | |
1319 | printf("updated %s\n", key); | |
1320 | dbfn_write(dbm, key, wait, sizeof(dbdata_wait) + | |
1321 | wait->count * MESSAGE_ID_LENGTH); | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | /* If a retry record's key ends with a message-id, check that that message | |
1326 | still exists; if not, remove this record. */ | |
1327 | ||
1328 | else if (dbdata_type == type_retry) | |
1329 | { | |
1330 | uschar *id; | |
1331 | int len = Ustrlen(key); | |
1332 | ||
1333 | if (len < MESSAGE_ID_LENGTH + 1) continue; | |
1334 | id = key + len - MESSAGE_ID_LENGTH - 1; | |
1335 | if (*id++ != ':') continue; | |
1336 | ||
1337 | for (i = 0; i < MESSAGE_ID_LENGTH; i++) | |
1338 | { | |
1339 | if (i == 6 || i == 13) | |
1340 | { if (id[i] != '-') break; } | |
1341 | else | |
1342 | { if (!isalnum(id[i])) break; } | |
1343 | } | |
1344 | if (i < MESSAGE_ID_LENGTH) continue; | |
1345 | ||
1346 | Ustrncpy(buffer + path_len, id, MESSAGE_ID_LENGTH); | |
1347 | sprintf(CS(buffer + path_len + MESSAGE_ID_LENGTH), "-D"); | |
1348 | ||
1349 | if (Ustat(buffer, &statbuf) != 0) | |
1350 | { | |
1351 | sprintf(CS(buffer + path_len), "%c/%s-D", id[5], id); | |
1352 | if (Ustat(buffer, &statbuf) != 0) | |
1353 | { | |
1354 | dbfn_delete(dbm, key); | |
1355 | printf("deleted %s (no message)\n", key); | |
1356 | } | |
1357 | } | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | dbfn_close(dbm); | |
1362 | printf("Tidying complete\n"); | |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | #endif /* EXIM_TIDYDB */ | |
1367 | ||
1368 | /* End of exim_dbutil.c */ |