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f1e894f3 | 1 | /* $Cambridge: exim/src/src/exim_dbutil.c,v 1.7 2005/06/27 14:29:43 ph10 Exp $ */ |
059ec3d9 PH |
2 | |
3 | /************************************************* | |
4 | * Exim - an Internet mail transport agent * | |
5 | *************************************************/ | |
6 | ||
c988f1f4 | 7 | /* Copyright (c) University of Cambridge 1995 - 2005 */ |
059ec3d9 PH |
8 | /* See the file NOTICE for conditions of use and distribution. */ |
9 | ||
10 | ||
11 | /* This single source file is used to compile three utility programs for | |
12 | maintaining Exim hints databases. | |
13 | ||
14 | exim_dumpdb dumps out the contents | |
15 | exim_fixdb patches the database (really for Exim maintenance/testing) | |
16 | exim_tidydb removed obsolete data | |
17 | ||
18 | In all cases, the first argument is the name of the spool directory. The second | |
19 | argument is the name of the database file. The available names are: | |
20 | ||
21 | retry: retry delivery information | |
22 | misc: miscellaneous hints data | |
23 | wait-<t>: message waiting information; <t> is a transport name | |
24 | callout: callout verification cache | |
25 | ||
26 | There are a number of common subroutines, followed by three main programs, | |
27 | whose inclusion is controlled by -D on the compilation command. */ | |
28 | ||
29 | ||
30 | /* Standard C headers and Unix headers */ | |
31 | ||
32 | #include <ctype.h> | |
33 | #include <signal.h> | |
34 | #include <stdarg.h> | |
35 | #include <stdio.h> | |
36 | #include <stdlib.h> | |
37 | #include <string.h> | |
38 | #include <time.h> | |
39 | ||
40 | #include <errno.h> | |
41 | #include <fcntl.h> | |
42 | #include <unistd.h> | |
43 | #include <sys/stat.h> | |
44 | ||
45 | ||
46 | /* These are two values from macros.h which should perhaps be accessible in | |
47 | some better way than just repeating them here. */ | |
48 | ||
49 | #define WAIT_NAME_MAX 50 | |
50 | #define MESSAGE_ID_LENGTH 16 | |
51 | ||
52 | ||
53 | /* This selection of Exim headers contains exactly what we need, and hopefully | |
54 | not too much extra baggage. */ | |
55 | ||
56 | #include "config.h" /* Needed to get the DB type */ | |
57 | #include "mytypes.h" | |
58 | #include "macros.h" | |
59 | #include "dbstuff.h" | |
60 | #include "osfunctions.h" | |
61 | #include "store.h" | |
62 | ||
63 | ||
64 | /* Identifiers for the different database types. */ | |
65 | ||
870f6ba8 TF |
66 | #define type_retry 1 |
67 | #define type_wait 2 | |
68 | #define type_misc 3 | |
69 | #define type_callout 4 | |
70 | #define type_ratelimit 5 | |
059ec3d9 PH |
71 | |
72 | ||
73 | ||
74 | ||
75 | /************************************************* | |
76 | * Berkeley DB error callback * | |
77 | *************************************************/ | |
78 | ||
79 | /* For Berkeley DB >= 2, we can define a function to be called in case of DB | |
80 | errors. This should help with debugging strange DB problems, e.g. getting "File | |
1f922db1 | 81 | exists" when you try to open a db file. The API changed at release 4.3. */ |
059ec3d9 PH |
82 | |
83 | #if defined(USE_DB) && defined(DB_VERSION_STRING) | |
84 | void | |
1f922db1 PH |
85 | #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3) |
86 | dbfn_bdb_error_callback(const DB_ENV *dbenv, const char *pfx, const char *msg) | |
87 | { | |
88 | dbenv = dbenv; | |
89 | #else | |
059ec3d9 PH |
90 | dbfn_bdb_error_callback(const char *pfx, char *msg) |
91 | { | |
1f922db1 | 92 | #endif |
059ec3d9 PH |
93 | pfx = pfx; |
94 | printf("Berkeley DB error: %s\n", msg); | |
95 | } | |
96 | #endif | |
97 | ||
98 | ||
99 | ||
100 | /************************************************* | |
101 | * SIGALRM handler * | |
102 | *************************************************/ | |
103 | ||
104 | static int sigalrm_seen; | |
105 | ||
106 | void | |
107 | sigalrm_handler(int sig) | |
108 | { | |
109 | sig = sig; /* Keep picky compilers happy */ | |
110 | sigalrm_seen = 1; | |
111 | } | |
112 | ||
113 | ||
114 | ||
115 | /************************************************* | |
116 | * Output usage message and exit * | |
117 | *************************************************/ | |
118 | ||
119 | static void | |
120 | usage(uschar *name, uschar *options) | |
121 | { | |
122 | printf("Usage: exim_%s%s <spool-directory> <database-name>\n", name, options); | |
870f6ba8 | 123 | printf(" <database-name> = retry | misc | wait-<transport-name> | callout | ratelimit\n"); |
059ec3d9 PH |
124 | exit(1); |
125 | } | |
126 | ||
127 | ||
128 | ||
129 | /************************************************* | |
130 | * Sort out the command arguments * | |
131 | *************************************************/ | |
132 | ||
133 | /* This function checks that there are exactly 2 arguments, and checks the | |
134 | second of them to be sure it is a known database name. */ | |
135 | ||
136 | static int | |
137 | check_args(int argc, uschar **argv, uschar *name, uschar *options) | |
138 | { | |
139 | if (argc == 3) | |
140 | { | |
141 | if (Ustrcmp(argv[2], "retry") == 0) return type_retry; | |
142 | if (Ustrcmp(argv[2], "misc") == 0) return type_misc; | |
143 | if (Ustrncmp(argv[2], "wait-", 5) == 0) return type_wait; | |
144 | if (Ustrcmp(argv[2], "callout") == 0) return type_callout; | |
870f6ba8 | 145 | if (Ustrcmp(argv[2], "ratelimit") == 0) return type_ratelimit; |
059ec3d9 PH |
146 | } |
147 | usage(name, options); | |
148 | return -1; /* Never obeyed */ | |
149 | } | |
150 | ||
151 | ||
152 | ||
153 | /************************************************* | |
154 | * Handle attempts to write the log * | |
155 | *************************************************/ | |
156 | ||
157 | /* The message gets written to stderr when log_write() is called from a | |
158 | utility. The message always gets '\n' added on the end of it. These calls come | |
159 | from modules such as store.c when things go drastically wrong (e.g. malloc() | |
160 | failing). In normal use they won't get obeyed. | |
161 | ||
162 | Arguments: | |
163 | selector not relevant when running a utility | |
164 | flags not relevant when running a utility | |
165 | format a printf() format | |
166 | ... arguments for format | |
167 | ||
168 | Returns: nothing | |
169 | */ | |
170 | ||
171 | void | |
172 | log_write(unsigned int selector, int flags, char *format, ...) | |
173 | { | |
174 | va_list ap; | |
175 | va_start(ap, format); | |
176 | vfprintf(stderr, format, ap); | |
177 | fprintf(stderr, "\n"); | |
178 | va_end(ap); | |
179 | selector = selector; /* Keep picky compilers happy */ | |
180 | flags = flags; | |
181 | } | |
182 | ||
183 | ||
184 | ||
185 | /************************************************* | |
186 | * Format a time value for printing * | |
187 | *************************************************/ | |
188 | ||
189 | static uschar time_buffer[sizeof("09-xxx-1999 hh:mm:ss ")]; | |
190 | ||
191 | uschar * | |
192 | print_time(time_t t) | |
193 | { | |
194 | struct tm *tmstr = localtime(&t); | |
195 | Ustrftime(time_buffer, sizeof(time_buffer), "%d-%b-%Y %H:%M:%S", tmstr); | |
196 | return time_buffer; | |
197 | } | |
198 | ||
199 | ||
200 | ||
201 | /************************************************* | |
202 | * Format a cache value for printing * | |
203 | *************************************************/ | |
204 | ||
205 | uschar * | |
206 | print_cache(int value) | |
207 | { | |
208 | return (value == ccache_accept)? US"accept" : | |
209 | (value == ccache_reject)? US"reject" : | |
210 | US"unknown"; | |
211 | } | |
212 | ||
213 | ||
214 | #ifdef EXIM_FIXDB | |
215 | /************************************************* | |
216 | * Read time value * | |
217 | *************************************************/ | |
218 | ||
219 | static time_t | |
220 | read_time(uschar *s) | |
221 | { | |
222 | uschar *t = s; | |
223 | int field = 0; | |
224 | int value; | |
225 | time_t now = time(NULL); | |
226 | struct tm *tm = localtime(&now); | |
227 | ||
228 | tm->tm_sec = 0; | |
229 | tm->tm_isdst = -1; | |
230 | ||
231 | for (t = s + Ustrlen(s) - 1; t >= s; t--) | |
232 | { | |
233 | if (*t == ':') continue; | |
234 | if (!isdigit((uschar)*t)) return -1; | |
235 | ||
236 | value = *t - '0'; | |
237 | if (--t >= s) | |
238 | { | |
239 | if (!isdigit((uschar)*t)) return -1; | |
240 | value = value + (*t - '0')*10; | |
241 | } | |
242 | ||
243 | switch (field++) | |
244 | { | |
245 | case 0: tm->tm_min = value; break; | |
246 | case 1: tm->tm_hour = value; break; | |
247 | case 2: tm->tm_mday = value; break; | |
248 | case 3: tm->tm_mon = value - 1; break; | |
249 | case 4: tm->tm_year = (value < 90)? value + 100 : value; break; | |
250 | default: return -1; | |
251 | } | |
252 | } | |
253 | ||
254 | return mktime(tm); | |
255 | } | |
256 | #endif /* EXIM_FIXDB */ | |
257 | ||
258 | ||
259 | ||
260 | /************************************************* | |
261 | * Open and lock a database file * | |
262 | *************************************************/ | |
263 | ||
264 | /* This is a cut-down version from the function in dbfn.h that Exim itself | |
265 | uses. We assume the database exists, and therefore give up if we cannot open | |
266 | the lock file. | |
267 | ||
268 | Arguments: | |
269 | spool The spool directory | |
270 | name The single-component name of one of Exim's database files. | |
271 | flags O_RDONLY or O_RDWR | |
272 | dbblock Points to an open_db block to be filled in. | |
273 | ||
274 | Returns: NULL if the open failed, or the locking failed. | |
275 | On success, dbblock is returned. This contains the dbm pointer and | |
276 | the fd of the locked lock file. | |
277 | */ | |
278 | ||
279 | static open_db * | |
280 | dbfn_open(uschar *spool, uschar *name, int flags, open_db *dbblock) | |
281 | { | |
282 | int rc; | |
283 | struct flock lock_data; | |
284 | BOOL read_only = flags == O_RDONLY; | |
285 | uschar buffer[256]; | |
286 | ||
287 | /* The first thing to do is to open a separate file on which to lock. This | |
288 | ensures that Exim has exclusive use of the database before it even tries to | |
289 | open it. If there is a database, there should be a lock file in existence. */ | |
290 | ||
291 | sprintf(CS buffer, "%s/db/%s.lockfile", spool, name); | |
292 | ||
293 | dbblock->lockfd = Uopen(buffer, flags, 0); | |
294 | if (dbblock->lockfd < 0) | |
295 | { | |
296 | printf("** Failed to open database lock file %s: %s\n", buffer, | |
297 | strerror(errno)); | |
298 | return NULL; | |
299 | } | |
300 | ||
301 | /* Now we must get a lock on the opened lock file; do this with a blocking | |
302 | lock that times out. */ | |
303 | ||
304 | lock_data.l_type = read_only? F_RDLCK : F_WRLCK; | |
305 | lock_data.l_whence = lock_data.l_start = lock_data.l_len = 0; | |
306 | ||
307 | sigalrm_seen = FALSE; | |
308 | os_non_restarting_signal(SIGALRM, sigalrm_handler); | |
309 | alarm(EXIMDB_LOCK_TIMEOUT); | |
310 | rc = fcntl(dbblock->lockfd, F_SETLKW, &lock_data); | |
311 | alarm(0); | |
312 | ||
313 | if (sigalrm_seen) errno = ETIMEDOUT; | |
314 | if (rc < 0) | |
315 | { | |
316 | printf("** Failed to get %s lock for %s: %s", | |
317 | ((flags & O_RDONLY) != 0)? "read" : "write", buffer, | |
318 | (errno == ETIMEDOUT)? "timed out" : strerror(errno)); | |
f1e894f3 | 319 | (void)close(dbblock->lockfd); |
059ec3d9 PH |
320 | return NULL; |
321 | } | |
322 | ||
323 | /* At this point we have an opened and locked separate lock file, that is, | |
324 | exclusive access to the database, so we can go ahead and open it. */ | |
325 | ||
326 | sprintf(CS buffer, "%s/db/%s", spool, name); | |
327 | EXIM_DBOPEN(buffer, flags, 0, &(dbblock->dbptr)); | |
328 | ||
329 | if (dbblock->dbptr == NULL) | |
330 | { | |
331 | printf("** Failed to open DBM file %s for %s:\n %s%s\n", buffer, | |
332 | read_only? "reading" : "writing", strerror(errno), | |
333 | #ifdef USE_DB | |
334 | " (or Berkeley DB error while opening)" | |
335 | #else | |
336 | "" | |
337 | #endif | |
338 | ); | |
f1e894f3 | 339 | (void)close(dbblock->lockfd); |
059ec3d9 PH |
340 | return NULL; |
341 | } | |
342 | ||
343 | return dbblock; | |
344 | } | |
345 | ||
346 | ||
347 | ||
348 | ||
349 | /************************************************* | |
350 | * Unlock and close a database file * | |
351 | *************************************************/ | |
352 | ||
353 | /* Closing a file automatically unlocks it, so after closing the database, just | |
354 | close the lock file. | |
355 | ||
356 | Argument: a pointer to an open database block | |
357 | Returns: nothing | |
358 | */ | |
359 | ||
360 | static void | |
361 | dbfn_close(open_db *dbblock) | |
362 | { | |
363 | EXIM_DBCLOSE(dbblock->dbptr); | |
f1e894f3 | 364 | (void)close(dbblock->lockfd); |
059ec3d9 PH |
365 | } |
366 | ||
367 | ||
368 | ||
369 | ||
370 | /************************************************* | |
371 | * Read from database file * | |
372 | *************************************************/ | |
373 | ||
374 | /* Passing back the pointer unchanged is useless, because there is no guarantee | |
375 | of alignment. Since all the records used by Exim need to be properly aligned to | |
376 | pick out the timestamps, etc., do the copying centrally here. | |
377 | ||
378 | Arguments: | |
379 | dbblock a pointer to an open database block | |
380 | key the key of the record to be read | |
381 | length where to put the length (or NULL if length not wanted) | |
382 | ||
383 | Returns: a pointer to the retrieved record, or | |
384 | NULL if the record is not found | |
385 | */ | |
386 | ||
387 | static void * | |
388 | dbfn_read_with_length(open_db *dbblock, uschar *key, int *length) | |
389 | { | |
390 | void *yield; | |
391 | EXIM_DATUM key_datum, result_datum; | |
392 | ||
393 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
394 | EXIM_DATUM_INIT(result_datum); /* to be cleared before use. */ | |
395 | EXIM_DATUM_DATA(key_datum) = CS key; | |
396 | EXIM_DATUM_SIZE(key_datum) = Ustrlen(key) + 1; | |
397 | ||
398 | if (!EXIM_DBGET(dbblock->dbptr, key_datum, result_datum)) return NULL; | |
399 | ||
400 | yield = store_get(EXIM_DATUM_SIZE(result_datum)); | |
401 | memcpy(yield, EXIM_DATUM_DATA(result_datum), EXIM_DATUM_SIZE(result_datum)); | |
402 | if (length != NULL) *length = EXIM_DATUM_SIZE(result_datum); | |
403 | ||
404 | EXIM_DATUM_FREE(result_datum); /* Some DBM libs require freeing */ | |
405 | return yield; | |
406 | } | |
407 | ||
408 | ||
409 | ||
410 | #if defined(EXIM_TIDYDB) || defined(EXIM_FIXDB) | |
411 | ||
412 | /************************************************* | |
413 | * Write to database file * | |
414 | *************************************************/ | |
415 | ||
416 | /* | |
417 | Arguments: | |
418 | dbblock a pointer to an open database block | |
419 | key the key of the record to be written | |
420 | ptr a pointer to the record to be written | |
421 | length the length of the record to be written | |
422 | ||
423 | Returns: the yield of the underlying dbm or db "write" function. If this | |
424 | is dbm, the value is zero for OK. | |
425 | */ | |
426 | ||
427 | static int | |
428 | dbfn_write(open_db *dbblock, uschar *key, void *ptr, int length) | |
429 | { | |
430 | EXIM_DATUM key_datum, value_datum; | |
431 | dbdata_generic *gptr = (dbdata_generic *)ptr; | |
432 | gptr->time_stamp = time(NULL); | |
433 | ||
434 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
435 | EXIM_DATUM_INIT(value_datum); /* to be cleared before use. */ | |
436 | EXIM_DATUM_DATA(key_datum) = CS key; | |
437 | EXIM_DATUM_SIZE(key_datum) = Ustrlen(key) + 1; | |
438 | EXIM_DATUM_DATA(value_datum) = CS ptr; | |
439 | EXIM_DATUM_SIZE(value_datum) = length; | |
440 | return EXIM_DBPUT(dbblock->dbptr, key_datum, value_datum); | |
441 | } | |
442 | ||
443 | ||
444 | ||
445 | /************************************************* | |
446 | * Delete record from database file * | |
447 | *************************************************/ | |
448 | ||
449 | /* | |
450 | Arguments: | |
451 | dbblock a pointer to an open database block | |
452 | key the key of the record to be deleted | |
453 | ||
454 | Returns: the yield of the underlying dbm or db "delete" function. | |
455 | */ | |
456 | ||
457 | static int | |
458 | dbfn_delete(open_db *dbblock, uschar *key) | |
459 | { | |
460 | EXIM_DATUM key_datum; | |
461 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require clearing */ | |
462 | EXIM_DATUM_DATA(key_datum) = CS key; | |
463 | EXIM_DATUM_SIZE(key_datum) = Ustrlen(key) + 1; | |
464 | return EXIM_DBDEL(dbblock->dbptr, key_datum); | |
465 | } | |
466 | ||
467 | #endif /* EXIM_TIDYDB || EXIM_FIXDB */ | |
468 | ||
469 | ||
470 | ||
471 | #if defined(EXIM_DUMPDB) || defined(EXIM_TIDYDB) | |
472 | /************************************************* | |
473 | * Scan the keys of a database file * | |
474 | *************************************************/ | |
475 | ||
476 | /* | |
477 | Arguments: | |
478 | dbblock a pointer to an open database block | |
479 | start TRUE if starting a new scan | |
480 | FALSE if continuing with the current scan | |
481 | cursor a pointer to a pointer to a cursor anchor, for those dbm libraries | |
482 | that use the notion of a cursor | |
483 | ||
484 | Returns: the next record from the file, or | |
485 | NULL if there are no more | |
486 | */ | |
487 | ||
488 | static uschar * | |
489 | dbfn_scan(open_db *dbblock, BOOL start, EXIM_CURSOR **cursor) | |
490 | { | |
491 | EXIM_DATUM key_datum, value_datum; | |
492 | uschar *yield; | |
493 | value_datum = value_datum; /* dummy; not all db libraries use this */ | |
494 | ||
495 | /* Some dbm require an initialization */ | |
496 | ||
497 | if (start) EXIM_DBCREATE_CURSOR(dbblock->dbptr, cursor); | |
498 | ||
499 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
500 | EXIM_DATUM_INIT(value_datum); /* to be cleared before use. */ | |
501 | ||
502 | yield = (EXIM_DBSCAN(dbblock->dbptr, key_datum, value_datum, start, *cursor))? | |
503 | US EXIM_DATUM_DATA(key_datum) : NULL; | |
504 | ||
505 | /* Some dbm require a termination */ | |
506 | ||
507 | if (!yield) EXIM_DBDELETE_CURSOR(*cursor); | |
508 | return yield; | |
509 | } | |
510 | #endif /* EXIM_DUMPDB || EXIM_TIDYDB */ | |
511 | ||
512 | ||
513 | ||
514 | #ifdef EXIM_DUMPDB | |
515 | /************************************************* | |
516 | * The exim_dumpdb main program * | |
517 | *************************************************/ | |
518 | ||
519 | int | |
520 | main(int argc, char **cargv) | |
521 | { | |
522 | int dbdata_type = 0; | |
523 | int yield = 0; | |
524 | open_db dbblock; | |
525 | open_db *dbm; | |
526 | EXIM_CURSOR *cursor; | |
527 | uschar **argv = USS cargv; | |
528 | uschar *key; | |
529 | uschar keybuffer[1024]; | |
530 | ||
531 | /* Check the arguments, and open the database */ | |
532 | ||
533 | dbdata_type = check_args(argc, argv, US"dumpdb", US""); | |
534 | dbm = dbfn_open(argv[1], argv[2], O_RDONLY, &dbblock); | |
535 | if (dbm == NULL) exit(1); | |
536 | ||
537 | /* Scan the file, formatting the information for each entry. Note | |
538 | that data is returned in a malloc'ed block, in order that it be | |
539 | correctly aligned. */ | |
540 | ||
541 | key = dbfn_scan(dbm, TRUE, &cursor); | |
542 | while (key != NULL) | |
543 | { | |
544 | dbdata_retry *retry; | |
545 | dbdata_wait *wait; | |
546 | dbdata_callout_cache *callout; | |
870f6ba8 | 547 | dbdata_ratelimit *ratelimit; |
059ec3d9 PH |
548 | int count_bad = 0; |
549 | int i, length; | |
550 | uschar *t; | |
551 | uschar name[MESSAGE_ID_LENGTH + 1]; | |
552 | void *value; | |
553 | ||
554 | /* Keep a copy of the key separate, as in some DBM's the pointer is into data | |
555 | which might change. */ | |
556 | ||
557 | if (Ustrlen(key) > sizeof(keybuffer) - 1) | |
558 | { | |
559 | printf("**** Overlong key encountered: %s\n", key); | |
560 | return 1; | |
561 | } | |
562 | Ustrcpy(keybuffer, key); | |
563 | value = dbfn_read_with_length(dbm, keybuffer, &length); | |
564 | ||
565 | if (value == NULL) | |
566 | fprintf(stderr, "**** Entry \"%s\" was in the key scan, but the record " | |
567 | "was not found in the file - something is wrong!\n", | |
568 | CS keybuffer); | |
569 | else | |
570 | { | |
571 | /* Note: don't use print_time more than once in one statement, since | |
572 | it uses a single buffer. */ | |
573 | ||
574 | switch(dbdata_type) | |
575 | { | |
576 | case type_retry: | |
577 | retry = (dbdata_retry *)value; | |
578 | printf(" %s %d %d %s\n%s ", keybuffer, retry->basic_errno, | |
579 | retry->more_errno, retry->text, | |
580 | print_time(retry->first_failed)); | |
581 | printf("%s ", print_time(retry->last_try)); | |
582 | printf("%s %s\n", print_time(retry->next_try), | |
583 | (retry->expired)? "*" : ""); | |
584 | break; | |
585 | ||
586 | case type_wait: | |
587 | wait = (dbdata_wait *)value; | |
588 | printf("%s ", keybuffer); | |
589 | t = wait->text; | |
590 | name[MESSAGE_ID_LENGTH] = 0; | |
591 | ||
592 | if (wait->count > WAIT_NAME_MAX) | |
593 | { | |
594 | fprintf(stderr, | |
595 | "**** Data for %s corrupted\n count=%d=0x%x max=%d\n", | |
596 | CS keybuffer, wait->count, wait->count, WAIT_NAME_MAX); | |
597 | wait->count = WAIT_NAME_MAX; | |
598 | yield = count_bad = 1; | |
599 | } | |
600 | for (i = 1; i <= wait->count; i++) | |
601 | { | |
602 | Ustrncpy(name, t, MESSAGE_ID_LENGTH); | |
603 | if (count_bad && name[0] == 0) break; | |
604 | if (Ustrlen(name) != MESSAGE_ID_LENGTH || | |
605 | Ustrspn(name, "0123456789" | |
606 | "abcdefghijklmnopqrstuvwxyz" | |
607 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ-") != MESSAGE_ID_LENGTH) | |
608 | { | |
609 | int j; | |
610 | fprintf(stderr, | |
611 | "**** Data for %s corrupted: bad character in message id\n", | |
612 | CS keybuffer); | |
613 | for (j = 0; j < MESSAGE_ID_LENGTH; j++) | |
614 | fprintf(stderr, "%02x ", name[j]); | |
615 | fprintf(stderr, "\n"); | |
616 | yield = 1; | |
617 | break; | |
618 | } | |
619 | printf("%s ", name); | |
620 | t += MESSAGE_ID_LENGTH; | |
621 | } | |
622 | printf("\n"); | |
623 | break; | |
624 | ||
625 | case type_misc: | |
626 | printf("%s %s\n", print_time(((dbdata_generic *)value)->time_stamp), | |
627 | keybuffer); | |
628 | break; | |
629 | ||
630 | case type_callout: | |
631 | callout = (dbdata_callout_cache *)value; | |
632 | ||
633 | /* New-style address record */ | |
634 | ||
635 | if (length == sizeof(dbdata_callout_cache_address)) | |
636 | { | |
637 | printf("%s %s callout=%s\n", | |
638 | print_time(((dbdata_generic *)value)->time_stamp), | |
639 | keybuffer, | |
640 | print_cache(callout->result)); | |
641 | } | |
642 | ||
643 | /* New-style domain record */ | |
644 | ||
645 | else if (length == sizeof(dbdata_callout_cache)) | |
646 | { | |
647 | printf("%s %s callout=%s postmaster=%s", | |
648 | print_time(((dbdata_generic *)value)->time_stamp), | |
649 | keybuffer, | |
650 | print_cache(callout->result), | |
651 | print_cache(callout->postmaster_result)); | |
652 | if (callout->postmaster_result != ccache_unknown) | |
653 | printf(" (%s)", print_time(callout->postmaster_stamp)); | |
654 | printf(" random=%s", print_cache(callout->random_result)); | |
655 | if (callout->random_result != ccache_unknown) | |
656 | printf(" (%s)", print_time(callout->random_stamp)); | |
657 | printf("\n"); | |
658 | } | |
659 | ||
660 | /* Old-style domain record, without separate timestamps. This code can | |
661 | eventually be thrown away, say in 5 years' time (it's now Feb 2003). */ | |
662 | ||
663 | else | |
664 | { | |
665 | printf("%s %s callout=%s postmaster=%s random=%s\n", | |
666 | print_time(((dbdata_generic *)value)->time_stamp), | |
667 | keybuffer, | |
668 | print_cache(callout->result), | |
669 | print_cache(callout->postmaster_result), | |
670 | print_cache(callout->random_result)); | |
671 | } | |
672 | ||
870f6ba8 TF |
673 | break; |
674 | ||
675 | case type_ratelimit: | |
676 | ratelimit = (dbdata_ratelimit *)value; | |
677 | ||
678 | printf("%s.%06d rate: %10.3f key: %s\n", | |
679 | print_time(ratelimit->time_stamp), ratelimit->time_usec, | |
680 | ratelimit->rate, keybuffer); | |
681 | ||
059ec3d9 PH |
682 | break; |
683 | } | |
684 | store_reset(value); | |
685 | } | |
686 | key = dbfn_scan(dbm, FALSE, &cursor); | |
687 | } | |
688 | ||
689 | dbfn_close(dbm); | |
690 | return yield; | |
691 | } | |
692 | ||
693 | #endif /* EXIM_DUMPDB */ | |
694 | ||
695 | ||
696 | ||
697 | ||
698 | #ifdef EXIM_FIXDB | |
699 | /************************************************* | |
700 | * The exim_fixdb main program * | |
701 | *************************************************/ | |
702 | ||
703 | /* In order not to hold the database lock any longer than is necessary, each | |
704 | operation on the database uses a separate open/close call. This is expensive, | |
705 | but then using this utility is not expected to be very common. Its main use is | |
706 | to provide a way of patching up hints databases in order to run tests. | |
707 | ||
708 | Syntax of commands: | |
709 | ||
710 | (1) <record name> | |
711 | This causes the data from the given record to be displayed, or "not found" | |
712 | to be output. Note that in the retry database, destination names are | |
713 | preceded by R: or T: for router or transport retry info. | |
714 | ||
715 | (2) <record name> d | |
716 | This causes the given record to be deleted or "not found" to be output. | |
717 | ||
718 | (3) <record name> <field number> <value> | |
719 | This sets the given value into the given field, identified by a number | |
720 | which is output by the display command. Not all types of record can | |
721 | be changed. | |
722 | ||
723 | (4) q | |
724 | This exits from exim_fixdb. | |
725 | ||
726 | If the record name is omitted from (2) or (3), the previously used record name | |
727 | is re-used. */ | |
728 | ||
729 | ||
730 | int main(int argc, char **cargv) | |
731 | { | |
732 | int dbdata_type; | |
733 | uschar **argv = USS cargv; | |
734 | uschar buffer[256]; | |
735 | uschar name[256]; | |
736 | void *reset_point = store_get(0); | |
737 | ||
738 | name[0] = 0; /* No name set */ | |
739 | ||
740 | /* Sort out the database type, verify what we are working on and then process | |
741 | user requests */ | |
742 | ||
743 | dbdata_type = check_args(argc, argv, US"fixdb", US""); | |
744 | printf("Modifying Exim hints database %s/db/%s\n", argv[1], argv[2]); | |
745 | ||
746 | for(;;) | |
747 | { | |
748 | open_db dbblock; | |
749 | open_db *dbm; | |
750 | void *record; | |
751 | dbdata_retry *retry; | |
752 | dbdata_wait *wait; | |
753 | dbdata_callout_cache *callout; | |
870f6ba8 | 754 | dbdata_ratelimit *ratelimit; |
059ec3d9 PH |
755 | int i, oldlength; |
756 | uschar *t; | |
757 | uschar field[256], value[256]; | |
758 | ||
759 | store_reset(reset_point); | |
760 | ||
761 | printf("> "); | |
762 | if (Ufgets(buffer, 256, stdin) == NULL) break; | |
763 | ||
764 | buffer[Ustrlen(buffer)-1] = 0; | |
765 | field[0] = value[0] = 0; | |
766 | ||
767 | /* If the buffer contains just one digit, or just consists of "d", use the | |
768 | previous name for an update. */ | |
769 | ||
770 | if ((isdigit((uschar)buffer[0]) && !isdigit((uschar)buffer[1])) || | |
771 | Ustrcmp(buffer, "d") == 0) | |
772 | { | |
773 | if (name[0] == 0) | |
774 | { | |
775 | printf("No previous record name is set\n"); | |
776 | continue; | |
777 | } | |
ff790e47 | 778 | (void)sscanf(CS buffer, "%s %s", field, value); |
059ec3d9 PH |
779 | } |
780 | else | |
781 | { | |
782 | name[0] = 0; | |
ff790e47 | 783 | (void)sscanf(CS buffer, "%s %s %s", name, field, value); |
059ec3d9 PH |
784 | } |
785 | ||
786 | /* Handle an update request */ | |
787 | ||
788 | if (field[0] != 0) | |
789 | { | |
790 | int verify = 1; | |
791 | dbm = dbfn_open(argv[1], argv[2], O_RDWR, &dbblock); | |
792 | if (dbm == NULL) continue; | |
793 | ||
794 | if (Ustrcmp(field, "d") == 0) | |
795 | { | |
796 | if (value[0] != 0) printf("unexpected value after \"d\"\n"); | |
797 | else printf("%s\n", (dbfn_delete(dbm, name) < 0)? | |
798 | "not found" : "deleted"); | |
799 | dbfn_close(dbm); | |
800 | continue; | |
801 | } | |
802 | ||
803 | else if (isdigit((uschar)field[0])) | |
804 | { | |
805 | int fieldno = Uatoi(field); | |
806 | if (value[0] == 0) | |
807 | { | |
808 | printf("value missing\n"); | |
809 | dbfn_close(dbm); | |
810 | continue; | |
811 | } | |
812 | else | |
813 | { | |
814 | record = dbfn_read_with_length(dbm, name, &oldlength); | |
815 | if (record == NULL) printf("not found\n"); else | |
816 | { | |
817 | time_t tt; | |
818 | int length = 0; /* Stops compiler warning */ | |
819 | ||
820 | switch(dbdata_type) | |
821 | { | |
822 | case type_retry: | |
823 | retry = (dbdata_retry *)record; | |
824 | length = sizeof(dbdata_retry) + Ustrlen(retry->text); | |
825 | ||
826 | switch(fieldno) | |
827 | { | |
828 | case 0: | |
829 | retry->basic_errno = Uatoi(value); | |
830 | break; | |
831 | ||
832 | case 1: | |
833 | retry->more_errno = Uatoi(value); | |
834 | break; | |
835 | ||
836 | case 2: | |
837 | if ((tt = read_time(value)) > 0) retry->first_failed = tt; | |
838 | else printf("bad time value\n"); | |
839 | break; | |
840 | ||
841 | case 3: | |
842 | if ((tt = read_time(value)) > 0) retry->last_try = tt; | |
843 | else printf("bad time value\n"); | |
844 | break; | |
845 | ||
846 | case 4: | |
847 | if ((tt = read_time(value)) > 0) retry->next_try = tt; | |
848 | else printf("bad time value\n"); | |
849 | break; | |
850 | ||
851 | case 5: | |
852 | if (Ustrcmp(value, "yes") == 0) retry->expired = TRUE; | |
853 | else if (Ustrcmp(value, "no") == 0) retry->expired = FALSE; | |
854 | else printf("\"yes\" or \"no\" expected=n"); | |
855 | break; | |
856 | ||
857 | default: | |
858 | printf("unknown field number\n"); | |
859 | verify = 0; | |
860 | break; | |
861 | } | |
862 | break; | |
863 | ||
864 | case type_wait: | |
865 | printf("Can't change contents of wait database record\n"); | |
866 | break; | |
867 | ||
868 | case type_misc: | |
869 | printf("Can't change contents of misc database record\n"); | |
870 | break; | |
871 | ||
872 | case type_callout: | |
873 | callout = (dbdata_callout_cache *)record; | |
874 | length = sizeof(dbdata_callout_cache); | |
875 | switch(fieldno) | |
876 | { | |
877 | case 0: | |
878 | callout->result = Uatoi(value); | |
879 | break; | |
880 | ||
881 | case 1: | |
882 | callout->postmaster_result = Uatoi(value); | |
883 | break; | |
884 | ||
885 | case 2: | |
886 | callout->random_result = Uatoi(value); | |
887 | break; | |
888 | ||
889 | default: | |
890 | printf("unknown field number\n"); | |
891 | verify = 0; | |
892 | break; | |
893 | } | |
894 | break; | |
870f6ba8 TF |
895 | |
896 | case type_ratelimit: | |
897 | ratelimit = (dbdata_ratelimit *)value; | |
898 | switch(fieldno) | |
899 | { | |
900 | case 0: | |
901 | if ((tt = read_time(value)) > 0) ratelimit->time_stamp = tt; | |
902 | else printf("bad time value\n"); | |
903 | break; | |
904 | ||
905 | case 1: | |
906 | ratelimit->time_usec = Uatoi(value); | |
907 | ||
908 | case 2: | |
909 | ratelimit->rate = Ustrtod(value, NULL); | |
910 | break; | |
911 | ||
912 | default: | |
913 | printf("unknown field number\n"); | |
914 | verify = 0; | |
915 | break; | |
916 | } | |
917 | break; | |
059ec3d9 PH |
918 | } |
919 | ||
920 | dbfn_write(dbm, name, record, length); | |
921 | } | |
922 | } | |
923 | } | |
924 | ||
925 | else | |
926 | { | |
927 | printf("field number or d expected\n"); | |
928 | verify = 0; | |
929 | } | |
930 | ||
931 | dbfn_close(dbm); | |
932 | if (!verify) continue; | |
933 | } | |
934 | ||
935 | /* The "name" q causes an exit */ | |
936 | ||
937 | else if (Ustrcmp(name, "q") == 0) return 0; | |
938 | ||
939 | /* Handle a read request, or verify after an update. */ | |
940 | ||
941 | dbm = dbfn_open(argv[1], argv[2], O_RDONLY, &dbblock); | |
942 | if (dbm == NULL) continue; | |
943 | ||
944 | record = dbfn_read_with_length(dbm, name, &oldlength); | |
945 | if (record == NULL) | |
946 | { | |
947 | printf("record %s not found\n", name); | |
948 | name[0] = 0; | |
949 | } | |
950 | else | |
951 | { | |
952 | int count_bad = 0; | |
953 | printf("%s\n", CS print_time(((dbdata_generic *)record)->time_stamp)); | |
954 | switch(dbdata_type) | |
955 | { | |
956 | case type_retry: | |
957 | retry = (dbdata_retry *)record; | |
958 | printf("0 error number: %d %s\n", retry->basic_errno, retry->text); | |
959 | printf("1 extra data: %d\n", retry->more_errno); | |
960 | printf("2 first failed: %s\n", print_time(retry->first_failed)); | |
961 | printf("3 last try: %s\n", print_time(retry->last_try)); | |
962 | printf("4 next try: %s\n", print_time(retry->next_try)); | |
963 | printf("5 expired: %s\n", (retry->expired)? "yes" : "no"); | |
964 | break; | |
965 | ||
966 | case type_wait: | |
967 | wait = (dbdata_wait *)record; | |
968 | t = wait->text; | |
969 | printf("Sequence: %d\n", wait->sequence); | |
970 | if (wait->count > WAIT_NAME_MAX) | |
971 | { | |
972 | printf("**** Data corrupted: count=%d=0x%x max=%d ****\n", wait->count, | |
973 | wait->count, WAIT_NAME_MAX); | |
974 | wait->count = WAIT_NAME_MAX; | |
975 | count_bad = 1; | |
976 | } | |
977 | for (i = 1; i <= wait->count; i++) | |
978 | { | |
979 | Ustrncpy(value, t, MESSAGE_ID_LENGTH); | |
980 | value[MESSAGE_ID_LENGTH] = 0; | |
981 | if (count_bad && value[0] == 0) break; | |
982 | if (Ustrlen(value) != MESSAGE_ID_LENGTH || | |
983 | Ustrspn(value, "0123456789" | |
984 | "abcdefghijklmnopqrstuvwxyz" | |
985 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ-") != MESSAGE_ID_LENGTH) | |
986 | { | |
987 | int j; | |
988 | printf("\n**** Data corrupted: bad character in message id ****\n"); | |
989 | for (j = 0; j < MESSAGE_ID_LENGTH; j++) | |
990 | printf("%02x ", value[j]); | |
991 | printf("\n"); | |
992 | break; | |
993 | } | |
994 | printf("%s ", value); | |
995 | t += MESSAGE_ID_LENGTH; | |
996 | } | |
997 | printf("\n"); | |
998 | break; | |
999 | ||
1000 | case type_misc: | |
1001 | break; | |
1002 | ||
1003 | case type_callout: | |
1004 | callout = (dbdata_callout_cache *)record; | |
1005 | printf("0 callout: %s (%d)\n", print_cache(callout->result), | |
1006 | callout->result); | |
1007 | if (oldlength > sizeof(dbdata_callout_cache_address)) | |
1008 | { | |
1009 | printf("1 postmaster: %s (%d)\n", print_cache(callout->postmaster_result), | |
1010 | callout->postmaster_result); | |
1011 | printf("2 random: %s (%d)\n", print_cache(callout->random_result), | |
1012 | callout->random_result); | |
1013 | } | |
1014 | break; | |
870f6ba8 TF |
1015 | |
1016 | case type_ratelimit: | |
1017 | ratelimit = (dbdata_ratelimit *)value; | |
1018 | printf("0 time stamp: %s\n", print_time(ratelimit->time_stamp)); | |
1019 | printf("1 fract. time: .%06d\n", ratelimit->time_usec); | |
1020 | printf("2 sender rate: % .3f\n", ratelimit->rate); | |
1021 | break; | |
059ec3d9 PH |
1022 | } |
1023 | } | |
1024 | ||
1025 | /* The database is closed after each request */ | |
1026 | ||
1027 | dbfn_close(dbm); | |
1028 | } | |
1029 | ||
1030 | printf("\n"); | |
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | #endif /* EXIM_FIXDB */ | |
1035 | ||
1036 | ||
1037 | ||
1038 | #ifdef EXIM_TIDYDB | |
1039 | /************************************************* | |
1040 | * The exim_tidydb main program * | |
1041 | *************************************************/ | |
1042 | ||
1043 | ||
1044 | /* Utility program to tidy the contents of an exim database file. There is one | |
1045 | option: | |
1046 | ||
1047 | -t <time> expiry time for old records - default 30 days | |
1048 | ||
1049 | For backwards compatibility, an -f option is recognized and ignored. (It used | |
1050 | to request a "full" tidy. This version always does the whole job.) */ | |
1051 | ||
1052 | ||
1053 | typedef struct key_item { | |
1054 | struct key_item *next; | |
1055 | uschar key[1]; | |
1056 | } key_item; | |
1057 | ||
1058 | ||
1059 | int main(int argc, char **cargv) | |
1060 | { | |
1061 | struct stat statbuf; | |
1062 | int maxkeep = 30 * 24 * 60 * 60; | |
1063 | int dbdata_type, i, oldest, path_len; | |
1064 | key_item *keychain = NULL; | |
1065 | void *reset_point; | |
1066 | open_db dbblock; | |
1067 | open_db *dbm; | |
1068 | EXIM_CURSOR *cursor; | |
1069 | uschar **argv = USS cargv; | |
1070 | uschar buffer[256]; | |
1071 | uschar *key; | |
1072 | ||
1073 | /* Scan the options */ | |
1074 | ||
1075 | for (i = 1; i < argc; i++) | |
1076 | { | |
1077 | if (argv[i][0] != '-') break; | |
1078 | if (Ustrcmp(argv[i], "-f") == 0) continue; | |
1079 | if (Ustrcmp(argv[i], "-t") == 0) | |
1080 | { | |
1081 | uschar *s; | |
1082 | s = argv[++i]; | |
1083 | maxkeep = 0; | |
1084 | while (*s != 0) | |
1085 | { | |
1086 | int value, count; | |
1087 | if (!isdigit(*s)) usage(US"tidydb", US" [-t <time>]"); | |
1088 | (void)sscanf(CS s, "%d%n", &value, &count); | |
1089 | s += count; | |
1090 | switch (*s) | |
1091 | { | |
1092 | case 'w': value *= 7; | |
1093 | case 'd': value *= 24; | |
1094 | case 'h': value *= 60; | |
1095 | case 'm': value *= 60; | |
1096 | case 's': s++; | |
1097 | break; | |
1098 | default: usage(US"tidydb", US" [-t <time>]"); | |
1099 | } | |
1100 | maxkeep += value; | |
1101 | } | |
1102 | } | |
1103 | else usage(US"tidydb", US" [-t <time>]"); | |
1104 | } | |
1105 | ||
1106 | /* Adjust argument values and process arguments */ | |
1107 | ||
1108 | argc -= --i; | |
1109 | argv += i; | |
1110 | ||
1111 | dbdata_type = check_args(argc, argv, US"tidydb", US" [-t <time>]"); | |
1112 | ||
1113 | /* Compute the oldest keep time, verify what we are doing, and open the | |
1114 | database */ | |
1115 | ||
1116 | oldest = time(NULL) - maxkeep; | |
1117 | printf("Tidying Exim hints database %s/db/%s\n", argv[1], argv[2]); | |
1118 | ||
1119 | dbm = dbfn_open(argv[1], argv[2], O_RDWR, &dbblock); | |
1120 | if (dbm == NULL) exit(1); | |
1121 | ||
1122 | /* Prepare for building file names */ | |
1123 | ||
1124 | sprintf(CS buffer, "%s/input/", argv[1]); | |
1125 | path_len = Ustrlen(buffer); | |
1126 | ||
1127 | ||
1128 | /* It appears, by experiment, that it is a bad idea to make changes | |
1129 | to the file while scanning it. Pity the man page doesn't warn you about that. | |
1130 | Therefore, we scan and build a list of all the keys. Then we use that to | |
1131 | read the records and possibly update them. */ | |
1132 | ||
1133 | key = dbfn_scan(dbm, TRUE, &cursor); | |
1134 | while (key != NULL) | |
1135 | { | |
1136 | key_item *k = store_get(sizeof(key_item) + Ustrlen(key)); | |
1137 | k->next = keychain; | |
1138 | keychain = k; | |
1139 | Ustrcpy(k->key, key); | |
1140 | key = dbfn_scan(dbm, FALSE, &cursor); | |
1141 | } | |
1142 | ||
1143 | /* Now scan the collected keys and operate on the records, resetting | |
1144 | the store each time round. */ | |
1145 | ||
1146 | reset_point = store_get(0); | |
1147 | ||
1148 | while (keychain != NULL) | |
1149 | { | |
1150 | dbdata_generic *value; | |
1151 | ||
1152 | store_reset(reset_point); | |
1153 | key = keychain->key; | |
1154 | keychain = keychain->next; | |
1155 | value = dbfn_read_with_length(dbm, key, NULL); | |
1156 | ||
1157 | /* A continuation record may have been deleted or renamed already, so | |
1158 | non-existence is not serious. */ | |
1159 | ||
1160 | if (value == NULL) continue; | |
1161 | ||
1162 | /* Delete if too old */ | |
1163 | ||
1164 | if (value->time_stamp < oldest) | |
1165 | { | |
1166 | printf("deleted %s (too old)\n", key); | |
1167 | dbfn_delete(dbm, key); | |
1168 | continue; | |
1169 | } | |
1170 | ||
1171 | /* Do database-specific tidying for wait databases, and message- | |
1172 | specific tidying for the retry database. */ | |
1173 | ||
1174 | if (dbdata_type == type_wait) | |
1175 | { | |
1176 | dbdata_wait *wait = (dbdata_wait *)value; | |
1177 | BOOL update = FALSE; | |
1178 | ||
1179 | /* Leave corrupt records alone */ | |
1180 | ||
1181 | if (wait->count > WAIT_NAME_MAX) | |
1182 | { | |
1183 | printf("**** Data for %s corrupted\n count=%d=0x%x max=%d\n", | |
1184 | key, wait->count, wait->count, WAIT_NAME_MAX); | |
1185 | continue; | |
1186 | } | |
1187 | ||
1188 | /* Loop for renamed continuation records. For each message id, | |
1189 | check to see if the message exists, and if not, remove its entry | |
1190 | from the record. Because of the possibility of split input directories, | |
1191 | we must look in both possible places for a -D file. */ | |
1192 | ||
1193 | for (;;) | |
1194 | { | |
1195 | int offset; | |
1196 | int length = wait->count * MESSAGE_ID_LENGTH; | |
1197 | ||
1198 | for (offset = length - MESSAGE_ID_LENGTH; | |
1199 | offset >= 0; offset -= MESSAGE_ID_LENGTH) | |
1200 | { | |
1201 | Ustrncpy(buffer+path_len, wait->text + offset, MESSAGE_ID_LENGTH); | |
1202 | sprintf(CS(buffer+path_len + MESSAGE_ID_LENGTH), "-D"); | |
1203 | ||
1204 | if (Ustat(buffer, &statbuf) != 0) | |
1205 | { | |
1206 | buffer[path_len] = wait->text[offset+5]; | |
1207 | buffer[path_len+1] = '/'; | |
1208 | Ustrncpy(buffer+path_len+2, wait->text + offset, MESSAGE_ID_LENGTH); | |
1209 | sprintf(CS(buffer+path_len+2 + MESSAGE_ID_LENGTH), "-D"); | |
1210 | ||
1211 | if (Ustat(buffer, &statbuf) != 0) | |
1212 | { | |
1213 | int left = length - offset - MESSAGE_ID_LENGTH; | |
1214 | if (left > 0) Ustrncpy(wait->text + offset, | |
1215 | wait->text + offset + MESSAGE_ID_LENGTH, left); | |
1216 | wait->count--; | |
1217 | length -= MESSAGE_ID_LENGTH; | |
1218 | update = TRUE; | |
1219 | } | |
1220 | } | |
1221 | } | |
1222 | ||
1223 | /* If record is empty and the main record, either delete it or rename | |
1224 | the next continuation, repeating if that is also empty. */ | |
1225 | ||
1226 | if (wait->count == 0 && Ustrchr(key, ':') == NULL) | |
1227 | { | |
1228 | while (wait->count == 0 && wait->sequence > 0) | |
1229 | { | |
1230 | uschar newkey[256]; | |
1231 | dbdata_generic *newvalue; | |
1232 | sprintf(CS newkey, "%s:%d", key, wait->sequence - 1); | |
1233 | newvalue = dbfn_read_with_length(dbm, newkey, NULL); | |
1234 | if (newvalue != NULL) | |
1235 | { | |
1236 | value = newvalue; | |
1237 | wait = (dbdata_wait *)newvalue; | |
1238 | dbfn_delete(dbm, newkey); | |
1239 | printf("renamed %s\n", newkey); | |
1240 | update = TRUE; | |
1241 | } | |
1242 | else wait->sequence--; | |
1243 | } | |
1244 | ||
1245 | /* If we have ended up with an empty main record, delete it | |
1246 | and break the loop. Otherwise the new record will be scanned. */ | |
1247 | ||
1248 | if (wait->count == 0 && wait->sequence == 0) | |
1249 | { | |
1250 | dbfn_delete(dbm, key); | |
1251 | printf("deleted %s (empty)\n", key); | |
1252 | update = FALSE; | |
1253 | break; | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | /* If not an empty main record, break the loop */ | |
1258 | ||
1259 | else break; | |
1260 | } | |
1261 | ||
1262 | /* Re-write the record if required */ | |
1263 | ||
1264 | if (update) | |
1265 | { | |
1266 | printf("updated %s\n", key); | |
1267 | dbfn_write(dbm, key, wait, sizeof(dbdata_wait) + | |
1268 | wait->count * MESSAGE_ID_LENGTH); | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | /* If a retry record's key ends with a message-id, check that that message | |
1273 | still exists; if not, remove this record. */ | |
1274 | ||
1275 | else if (dbdata_type == type_retry) | |
1276 | { | |
1277 | uschar *id; | |
1278 | int len = Ustrlen(key); | |
1279 | ||
1280 | if (len < MESSAGE_ID_LENGTH + 1) continue; | |
1281 | id = key + len - MESSAGE_ID_LENGTH - 1; | |
1282 | if (*id++ != ':') continue; | |
1283 | ||
1284 | for (i = 0; i < MESSAGE_ID_LENGTH; i++) | |
1285 | { | |
1286 | if (i == 6 || i == 13) | |
1287 | { if (id[i] != '-') break; } | |
1288 | else | |
1289 | { if (!isalnum(id[i])) break; } | |
1290 | } | |
1291 | if (i < MESSAGE_ID_LENGTH) continue; | |
1292 | ||
1293 | Ustrncpy(buffer + path_len, id, MESSAGE_ID_LENGTH); | |
1294 | sprintf(CS(buffer + path_len + MESSAGE_ID_LENGTH), "-D"); | |
1295 | ||
1296 | if (Ustat(buffer, &statbuf) != 0) | |
1297 | { | |
0ec020ea PH |
1298 | sprintf(CS(buffer + path_len), "%c/%s-D", id[5], id); |
1299 | if (Ustat(buffer, &statbuf) != 0) | |
1300 | { | |
1301 | dbfn_delete(dbm, key); | |
1302 | printf("deleted %s (no message)\n", key); | |
1303 | } | |
059ec3d9 PH |
1304 | } |
1305 | } | |
1306 | } | |
1307 | ||
1308 | dbfn_close(dbm); | |
1309 | printf("Tidying complete\n"); | |
1310 | return 0; | |
1311 | } | |
1312 | ||
1313 | #endif /* EXIM_TIDYDB */ | |
1314 | ||
1315 | /* End of exim_dbutil.c */ |