Commit | Line | Data |
---|---|---|
059ec3d9 PH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
f9ba5e22 | 5 | /* Copyright (c) University of Cambridge 1995 - 2018 */ |
059ec3d9 PH |
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 | |
b10c87b3 | 23 | tls: TLS session resumption cache |
059ec3d9 PH |
24 | |
25 | There are a number of common subroutines, followed by three main programs, | |
26 | whose inclusion is controlled by -D on the compilation command. */ | |
27 | ||
28 | ||
c99ce5c9 | 29 | #include "exim.h" |
059ec3d9 PH |
30 | |
31 | ||
32 | /* Identifiers for the different database types. */ | |
33 | ||
870f6ba8 TF |
34 | #define type_retry 1 |
35 | #define type_wait 2 | |
36 | #define type_misc 3 | |
37 | #define type_callout 4 | |
38 | #define type_ratelimit 5 | |
b10c87b3 | 39 | #define type_tls 6 |
059ec3d9 PH |
40 | |
41 | ||
c99ce5c9 TF |
42 | /* This is used by our cut-down dbfn_open(). */ |
43 | ||
44 | uschar *spool_directory; | |
45 | ||
059ec3d9 | 46 | |
65766f1b JH |
47 | /******************************************************************************/ |
48 | /* dummies needed by Solaris build */ | |
fa2a928f JH |
49 | void |
50 | millisleep(int msec) | |
51 | {} | |
52 | uschar * | |
53 | readconf_printtime(int t) | |
54 | { return NULL; } | |
65766f1b JH |
55 | gstring * |
56 | string_vformat_trc(gstring * g, const uschar * func, unsigned line, | |
57 | unsigned size_limit, unsigned flags, const char *format, va_list ap) | |
58 | { return NULL; } | |
f3a6b42d JH |
59 | uschar * |
60 | string_sprintf_trc(const char * fmt, const uschar * func, unsigned line, ...) | |
61 | { return NULL; } | |
fa2a928f JH |
62 | |
63 | struct global_flags f; | |
64 | unsigned int log_selector[1]; | |
65 | uschar * queue_name; | |
66 | BOOL split_spool_directory; | |
65766f1b JH |
67 | /******************************************************************************/ |
68 | ||
059ec3d9 PH |
69 | |
70 | /************************************************* | |
71 | * Berkeley DB error callback * | |
72 | *************************************************/ | |
73 | ||
74 | /* For Berkeley DB >= 2, we can define a function to be called in case of DB | |
75 | errors. This should help with debugging strange DB problems, e.g. getting "File | |
1f922db1 | 76 | exists" when you try to open a db file. The API changed at release 4.3. */ |
059ec3d9 PH |
77 | |
78 | #if defined(USE_DB) && defined(DB_VERSION_STRING) | |
79 | void | |
1f922db1 PH |
80 | #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3) |
81 | dbfn_bdb_error_callback(const DB_ENV *dbenv, const char *pfx, const char *msg) | |
82 | { | |
83 | dbenv = dbenv; | |
84 | #else | |
059ec3d9 PH |
85 | dbfn_bdb_error_callback(const char *pfx, char *msg) |
86 | { | |
1f922db1 | 87 | #endif |
059ec3d9 PH |
88 | pfx = pfx; |
89 | printf("Berkeley DB error: %s\n", msg); | |
90 | } | |
91 | #endif | |
92 | ||
93 | ||
94 | ||
95 | /************************************************* | |
96 | * SIGALRM handler * | |
97 | *************************************************/ | |
98 | ||
c99ce5c9 | 99 | SIGNAL_BOOL sigalrm_seen; |
059ec3d9 PH |
100 | |
101 | void | |
102 | sigalrm_handler(int sig) | |
103 | { | |
104 | sig = sig; /* Keep picky compilers happy */ | |
105 | sigalrm_seen = 1; | |
106 | } | |
107 | ||
108 | ||
109 | ||
110 | /************************************************* | |
111 | * Output usage message and exit * | |
112 | *************************************************/ | |
113 | ||
114 | static void | |
115 | usage(uschar *name, uschar *options) | |
116 | { | |
117 | printf("Usage: exim_%s%s <spool-directory> <database-name>\n", name, options); | |
b10c87b3 | 118 | printf(" <database-name> = retry | misc | wait-<transport-name> | callout | ratelimit | tls\n"); |
059ec3d9 PH |
119 | exit(1); |
120 | } | |
121 | ||
122 | ||
123 | ||
124 | /************************************************* | |
125 | * Sort out the command arguments * | |
126 | *************************************************/ | |
127 | ||
128 | /* This function checks that there are exactly 2 arguments, and checks the | |
129 | second of them to be sure it is a known database name. */ | |
130 | ||
131 | static int | |
132 | check_args(int argc, uschar **argv, uschar *name, uschar *options) | |
133 | { | |
134 | if (argc == 3) | |
135 | { | |
136 | if (Ustrcmp(argv[2], "retry") == 0) return type_retry; | |
137 | if (Ustrcmp(argv[2], "misc") == 0) return type_misc; | |
138 | if (Ustrncmp(argv[2], "wait-", 5) == 0) return type_wait; | |
139 | if (Ustrcmp(argv[2], "callout") == 0) return type_callout; | |
870f6ba8 | 140 | if (Ustrcmp(argv[2], "ratelimit") == 0) return type_ratelimit; |
b10c87b3 | 141 | if (Ustrcmp(argv[2], "tls") == 0) return type_tls; |
059ec3d9 PH |
142 | } |
143 | usage(name, options); | |
144 | return -1; /* Never obeyed */ | |
145 | } | |
146 | ||
147 | ||
148 | ||
149 | /************************************************* | |
150 | * Handle attempts to write the log * | |
151 | *************************************************/ | |
152 | ||
153 | /* The message gets written to stderr when log_write() is called from a | |
154 | utility. The message always gets '\n' added on the end of it. These calls come | |
155 | from modules such as store.c when things go drastically wrong (e.g. malloc() | |
156 | failing). In normal use they won't get obeyed. | |
157 | ||
158 | Arguments: | |
159 | selector not relevant when running a utility | |
160 | flags not relevant when running a utility | |
161 | format a printf() format | |
162 | ... arguments for format | |
163 | ||
164 | Returns: nothing | |
165 | */ | |
166 | ||
167 | void | |
c99ce5c9 | 168 | log_write(unsigned int selector, int flags, const char *format, ...) |
059ec3d9 PH |
169 | { |
170 | va_list ap; | |
171 | va_start(ap, format); | |
172 | vfprintf(stderr, format, ap); | |
173 | fprintf(stderr, "\n"); | |
174 | va_end(ap); | |
175 | selector = selector; /* Keep picky compilers happy */ | |
176 | flags = flags; | |
177 | } | |
178 | ||
179 | ||
180 | ||
181 | /************************************************* | |
182 | * Format a time value for printing * | |
183 | *************************************************/ | |
184 | ||
185 | static uschar time_buffer[sizeof("09-xxx-1999 hh:mm:ss ")]; | |
186 | ||
187 | uschar * | |
188 | print_time(time_t t) | |
189 | { | |
190 | struct tm *tmstr = localtime(&t); | |
191 | Ustrftime(time_buffer, sizeof(time_buffer), "%d-%b-%Y %H:%M:%S", tmstr); | |
192 | return time_buffer; | |
193 | } | |
194 | ||
195 | ||
196 | ||
197 | /************************************************* | |
198 | * Format a cache value for printing * | |
199 | *************************************************/ | |
200 | ||
201 | uschar * | |
202 | print_cache(int value) | |
203 | { | |
204 | return (value == ccache_accept)? US"accept" : | |
205 | (value == ccache_reject)? US"reject" : | |
206 | US"unknown"; | |
207 | } | |
208 | ||
209 | ||
210 | #ifdef EXIM_FIXDB | |
211 | /************************************************* | |
212 | * Read time value * | |
213 | *************************************************/ | |
214 | ||
215 | static time_t | |
216 | read_time(uschar *s) | |
217 | { | |
059ec3d9 PH |
218 | int field = 0; |
219 | int value; | |
220 | time_t now = time(NULL); | |
221 | struct tm *tm = localtime(&now); | |
222 | ||
223 | tm->tm_sec = 0; | |
224 | tm->tm_isdst = -1; | |
225 | ||
d7978c0f | 226 | for (uschar * t = s + Ustrlen(s) - 1; t >= s; t--) |
059ec3d9 PH |
227 | { |
228 | if (*t == ':') continue; | |
229 | if (!isdigit((uschar)*t)) return -1; | |
230 | ||
231 | value = *t - '0'; | |
232 | if (--t >= s) | |
233 | { | |
234 | if (!isdigit((uschar)*t)) return -1; | |
235 | value = value + (*t - '0')*10; | |
236 | } | |
237 | ||
238 | switch (field++) | |
239 | { | |
240 | case 0: tm->tm_min = value; break; | |
241 | case 1: tm->tm_hour = value; break; | |
242 | case 2: tm->tm_mday = value; break; | |
243 | case 3: tm->tm_mon = value - 1; break; | |
244 | case 4: tm->tm_year = (value < 90)? value + 100 : value; break; | |
245 | default: return -1; | |
246 | } | |
247 | } | |
248 | ||
249 | return mktime(tm); | |
250 | } | |
251 | #endif /* EXIM_FIXDB */ | |
252 | ||
253 | ||
254 | ||
255 | /************************************************* | |
256 | * Open and lock a database file * | |
257 | *************************************************/ | |
258 | ||
259 | /* This is a cut-down version from the function in dbfn.h that Exim itself | |
260 | uses. We assume the database exists, and therefore give up if we cannot open | |
261 | the lock file. | |
262 | ||
263 | Arguments: | |
059ec3d9 PH |
264 | name The single-component name of one of Exim's database files. |
265 | flags O_RDONLY or O_RDWR | |
266 | dbblock Points to an open_db block to be filled in. | |
c99ce5c9 | 267 | lof Unused. |
b10c87b3 | 268 | panic Unused |
059ec3d9 PH |
269 | |
270 | Returns: NULL if the open failed, or the locking failed. | |
271 | On success, dbblock is returned. This contains the dbm pointer and | |
272 | the fd of the locked lock file. | |
273 | */ | |
274 | ||
c99ce5c9 | 275 | open_db * |
b10c87b3 | 276 | dbfn_open(uschar *name, int flags, open_db *dbblock, BOOL lof, BOOL panic) |
059ec3d9 PH |
277 | { |
278 | int rc; | |
279 | struct flock lock_data; | |
280 | BOOL read_only = flags == O_RDONLY; | |
ebda598a | 281 | uschar * dirname, * filename; |
059ec3d9 PH |
282 | |
283 | /* The first thing to do is to open a separate file on which to lock. This | |
284 | ensures that Exim has exclusive use of the database before it even tries to | |
285 | open it. If there is a database, there should be a lock file in existence. */ | |
286 | ||
ebda598a | 287 | #ifdef COMPILE_UTILITY |
5d520e57 JH |
288 | if ( asprintf(CSS &dirname, "%s/db", spool_directory) < 0 |
289 | || asprintf(CSS &filename, "%s/%s.lockfile", dirname, name) < 0) | |
290 | return NULL; | |
ebda598a JH |
291 | #else |
292 | dirname = string_sprintf("%s/db", spool_directory); | |
293 | filename = string_sprintf("%s/%s.lockfile", dirname, name); | |
294 | #endif | |
059ec3d9 | 295 | |
cfb9cf20 | 296 | dbblock->lockfd = Uopen(filename, flags, 0); |
059ec3d9 PH |
297 | if (dbblock->lockfd < 0) |
298 | { | |
cfb9cf20 | 299 | printf("** Failed to open database lock file %s: %s\n", filename, |
059ec3d9 PH |
300 | strerror(errno)); |
301 | return NULL; | |
302 | } | |
303 | ||
304 | /* Now we must get a lock on the opened lock file; do this with a blocking | |
305 | lock that times out. */ | |
306 | ||
ebda598a | 307 | lock_data.l_type = read_only ? F_RDLCK : F_WRLCK; |
059ec3d9 PH |
308 | lock_data.l_whence = lock_data.l_start = lock_data.l_len = 0; |
309 | ||
310 | sigalrm_seen = FALSE; | |
311 | os_non_restarting_signal(SIGALRM, sigalrm_handler); | |
c2a1bba0 | 312 | ALARM(EXIMDB_LOCK_TIMEOUT); |
059ec3d9 | 313 | rc = fcntl(dbblock->lockfd, F_SETLKW, &lock_data); |
c2a1bba0 | 314 | ALARM_CLR(0); |
059ec3d9 PH |
315 | |
316 | if (sigalrm_seen) errno = ETIMEDOUT; | |
317 | if (rc < 0) | |
318 | { | |
319 | printf("** Failed to get %s lock for %s: %s", | |
d4ff61d1 | 320 | flags & O_WRONLY ? "write" : "read", |
cfb9cf20 | 321 | filename, |
d4ff61d1 | 322 | errno == ETIMEDOUT ? "timed out" : strerror(errno)); |
f1e894f3 | 323 | (void)close(dbblock->lockfd); |
059ec3d9 PH |
324 | return NULL; |
325 | } | |
326 | ||
327 | /* At this point we have an opened and locked separate lock file, that is, | |
328 | exclusive access to the database, so we can go ahead and open it. */ | |
329 | ||
ebda598a | 330 | #ifdef COMPILE_UTILITY |
5d520e57 | 331 | if (asprintf(CSS &filename, "%s/%s", dirname, name) < 0) return NULL; |
ebda598a JH |
332 | #else |
333 | filename = string_sprintf("%s/%s", dirname, name); | |
334 | #endif | |
6e0fddef | 335 | EXIM_DBOPEN(filename, dirname, flags, 0, &dbblock->dbptr); |
059ec3d9 | 336 | |
13c7874e | 337 | if (!dbblock->dbptr) |
059ec3d9 | 338 | { |
cfb9cf20 | 339 | printf("** Failed to open DBM file %s for %s:\n %s%s\n", filename, |
059ec3d9 PH |
340 | read_only? "reading" : "writing", strerror(errno), |
341 | #ifdef USE_DB | |
342 | " (or Berkeley DB error while opening)" | |
343 | #else | |
344 | "" | |
345 | #endif | |
346 | ); | |
f1e894f3 | 347 | (void)close(dbblock->lockfd); |
059ec3d9 PH |
348 | return NULL; |
349 | } | |
350 | ||
351 | return dbblock; | |
352 | } | |
353 | ||
354 | ||
355 | ||
356 | ||
357 | /************************************************* | |
358 | * Unlock and close a database file * | |
359 | *************************************************/ | |
360 | ||
361 | /* Closing a file automatically unlocks it, so after closing the database, just | |
362 | close the lock file. | |
363 | ||
364 | Argument: a pointer to an open database block | |
365 | Returns: nothing | |
366 | */ | |
367 | ||
c99ce5c9 | 368 | void |
059ec3d9 PH |
369 | dbfn_close(open_db *dbblock) |
370 | { | |
371 | EXIM_DBCLOSE(dbblock->dbptr); | |
f1e894f3 | 372 | (void)close(dbblock->lockfd); |
059ec3d9 PH |
373 | } |
374 | ||
375 | ||
376 | ||
377 | ||
378 | /************************************************* | |
379 | * Read from database file * | |
380 | *************************************************/ | |
381 | ||
382 | /* Passing back the pointer unchanged is useless, because there is no guarantee | |
383 | of alignment. Since all the records used by Exim need to be properly aligned to | |
384 | pick out the timestamps, etc., do the copying centrally here. | |
385 | ||
386 | Arguments: | |
387 | dbblock a pointer to an open database block | |
388 | key the key of the record to be read | |
389 | length where to put the length (or NULL if length not wanted) | |
390 | ||
391 | Returns: a pointer to the retrieved record, or | |
392 | NULL if the record is not found | |
393 | */ | |
394 | ||
c99ce5c9 | 395 | void * |
55414b25 | 396 | dbfn_read_with_length(open_db *dbblock, const uschar *key, int *length) |
059ec3d9 PH |
397 | { |
398 | void *yield; | |
399 | EXIM_DATUM key_datum, result_datum; | |
55414b25 | 400 | int klen = Ustrlen(key) + 1; |
f3ebb786 | 401 | uschar * key_copy = store_get(klen, is_tainted(key)); |
55414b25 JH |
402 | |
403 | memcpy(key_copy, key, klen); | |
059ec3d9 PH |
404 | |
405 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
406 | EXIM_DATUM_INIT(result_datum); /* to be cleared before use. */ | |
55414b25 JH |
407 | EXIM_DATUM_DATA(key_datum) = CS key_copy; |
408 | EXIM_DATUM_SIZE(key_datum) = klen; | |
059ec3d9 PH |
409 | |
410 | if (!EXIM_DBGET(dbblock->dbptr, key_datum, result_datum)) return NULL; | |
411 | ||
f3ebb786 JH |
412 | /* Assume for now that anything stored could have been tainted. Properly |
413 | we should store the taint status along with the data. */ | |
414 | ||
415 | yield = store_get(EXIM_DATUM_SIZE(result_datum), TRUE); | |
059ec3d9 PH |
416 | memcpy(yield, EXIM_DATUM_DATA(result_datum), EXIM_DATUM_SIZE(result_datum)); |
417 | if (length != NULL) *length = EXIM_DATUM_SIZE(result_datum); | |
418 | ||
419 | EXIM_DATUM_FREE(result_datum); /* Some DBM libs require freeing */ | |
420 | return yield; | |
421 | } | |
422 | ||
423 | ||
424 | ||
425 | #if defined(EXIM_TIDYDB) || defined(EXIM_FIXDB) | |
426 | ||
427 | /************************************************* | |
428 | * Write to database file * | |
429 | *************************************************/ | |
430 | ||
431 | /* | |
432 | Arguments: | |
433 | dbblock a pointer to an open database block | |
434 | key the key of the record to be written | |
435 | ptr a pointer to the record to be written | |
436 | length the length of the record to be written | |
437 | ||
438 | Returns: the yield of the underlying dbm or db "write" function. If this | |
439 | is dbm, the value is zero for OK. | |
440 | */ | |
441 | ||
c99ce5c9 | 442 | int |
55414b25 | 443 | dbfn_write(open_db *dbblock, const uschar *key, void *ptr, int length) |
059ec3d9 PH |
444 | { |
445 | EXIM_DATUM key_datum, value_datum; | |
446 | dbdata_generic *gptr = (dbdata_generic *)ptr; | |
55414b25 | 447 | int klen = Ustrlen(key) + 1; |
f3ebb786 | 448 | uschar * key_copy = store_get(klen, is_tainted(key)); |
55414b25 JH |
449 | |
450 | memcpy(key_copy, key, klen); | |
059ec3d9 PH |
451 | gptr->time_stamp = time(NULL); |
452 | ||
453 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
454 | EXIM_DATUM_INIT(value_datum); /* to be cleared before use. */ | |
55414b25 JH |
455 | EXIM_DATUM_DATA(key_datum) = CS key_copy; |
456 | EXIM_DATUM_SIZE(key_datum) = klen; | |
059ec3d9 PH |
457 | EXIM_DATUM_DATA(value_datum) = CS ptr; |
458 | EXIM_DATUM_SIZE(value_datum) = length; | |
459 | return EXIM_DBPUT(dbblock->dbptr, key_datum, value_datum); | |
460 | } | |
461 | ||
462 | ||
463 | ||
464 | /************************************************* | |
465 | * Delete record from database file * | |
466 | *************************************************/ | |
467 | ||
468 | /* | |
469 | Arguments: | |
470 | dbblock a pointer to an open database block | |
471 | key the key of the record to be deleted | |
472 | ||
473 | Returns: the yield of the underlying dbm or db "delete" function. | |
474 | */ | |
475 | ||
c99ce5c9 | 476 | int |
55414b25 | 477 | dbfn_delete(open_db *dbblock, const uschar *key) |
059ec3d9 | 478 | { |
55414b25 | 479 | int klen = Ustrlen(key) + 1; |
f3ebb786 | 480 | uschar * key_copy = store_get(klen, is_tainted(key)); |
55414b25 JH |
481 | |
482 | memcpy(key_copy, key, klen); | |
059ec3d9 PH |
483 | EXIM_DATUM key_datum; |
484 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require clearing */ | |
55414b25 JH |
485 | EXIM_DATUM_DATA(key_datum) = CS key_copy; |
486 | EXIM_DATUM_SIZE(key_datum) = klen; | |
059ec3d9 PH |
487 | return EXIM_DBDEL(dbblock->dbptr, key_datum); |
488 | } | |
489 | ||
490 | #endif /* EXIM_TIDYDB || EXIM_FIXDB */ | |
491 | ||
492 | ||
493 | ||
494 | #if defined(EXIM_DUMPDB) || defined(EXIM_TIDYDB) | |
495 | /************************************************* | |
496 | * Scan the keys of a database file * | |
497 | *************************************************/ | |
498 | ||
499 | /* | |
500 | Arguments: | |
501 | dbblock a pointer to an open database block | |
502 | start TRUE if starting a new scan | |
503 | FALSE if continuing with the current scan | |
504 | cursor a pointer to a pointer to a cursor anchor, for those dbm libraries | |
505 | that use the notion of a cursor | |
506 | ||
507 | Returns: the next record from the file, or | |
508 | NULL if there are no more | |
509 | */ | |
510 | ||
c99ce5c9 | 511 | uschar * |
059ec3d9 PH |
512 | dbfn_scan(open_db *dbblock, BOOL start, EXIM_CURSOR **cursor) |
513 | { | |
514 | EXIM_DATUM key_datum, value_datum; | |
515 | uschar *yield; | |
516 | value_datum = value_datum; /* dummy; not all db libraries use this */ | |
517 | ||
518 | /* Some dbm require an initialization */ | |
519 | ||
520 | if (start) EXIM_DBCREATE_CURSOR(dbblock->dbptr, cursor); | |
521 | ||
522 | EXIM_DATUM_INIT(key_datum); /* Some DBM libraries require the datum */ | |
523 | EXIM_DATUM_INIT(value_datum); /* to be cleared before use. */ | |
524 | ||
525 | yield = (EXIM_DBSCAN(dbblock->dbptr, key_datum, value_datum, start, *cursor))? | |
526 | US EXIM_DATUM_DATA(key_datum) : NULL; | |
527 | ||
528 | /* Some dbm require a termination */ | |
529 | ||
530 | if (!yield) EXIM_DBDELETE_CURSOR(*cursor); | |
531 | return yield; | |
532 | } | |
533 | #endif /* EXIM_DUMPDB || EXIM_TIDYDB */ | |
534 | ||
535 | ||
536 | ||
537 | #ifdef EXIM_DUMPDB | |
538 | /************************************************* | |
539 | * The exim_dumpdb main program * | |
540 | *************************************************/ | |
541 | ||
542 | int | |
543 | main(int argc, char **cargv) | |
544 | { | |
545 | int dbdata_type = 0; | |
546 | int yield = 0; | |
547 | open_db dbblock; | |
548 | open_db *dbm; | |
549 | EXIM_CURSOR *cursor; | |
550 | uschar **argv = USS cargv; | |
059ec3d9 PH |
551 | uschar keybuffer[1024]; |
552 | ||
553 | /* Check the arguments, and open the database */ | |
554 | ||
555 | dbdata_type = check_args(argc, argv, US"dumpdb", US""); | |
c99ce5c9 | 556 | spool_directory = argv[1]; |
b10c87b3 | 557 | if (!(dbm = dbfn_open(argv[2], O_RDONLY, &dbblock, FALSE, TRUE))) |
0a6c178c | 558 | exit(1); |
059ec3d9 PH |
559 | |
560 | /* Scan the file, formatting the information for each entry. Note | |
561 | that data is returned in a malloc'ed block, in order that it be | |
562 | correctly aligned. */ | |
563 | ||
d7978c0f | 564 | for (uschar * key = dbfn_scan(dbm, TRUE, &cursor); |
0a6c178c JH |
565 | key; |
566 | key = dbfn_scan(dbm, FALSE, &cursor)) | |
059ec3d9 PH |
567 | { |
568 | dbdata_retry *retry; | |
569 | dbdata_wait *wait; | |
570 | dbdata_callout_cache *callout; | |
870f6ba8 | 571 | dbdata_ratelimit *ratelimit; |
c99ce5c9 | 572 | dbdata_ratelimit_unique *rate_unique; |
b10c87b3 | 573 | dbdata_tls_session *session; |
059ec3d9 | 574 | int count_bad = 0; |
d7978c0f | 575 | int length; |
059ec3d9 PH |
576 | uschar *t; |
577 | uschar name[MESSAGE_ID_LENGTH + 1]; | |
578 | void *value; | |
f3ebb786 | 579 | rmark reset_point = store_mark(); |
059ec3d9 PH |
580 | |
581 | /* Keep a copy of the key separate, as in some DBM's the pointer is into data | |
582 | which might change. */ | |
583 | ||
584 | if (Ustrlen(key) > sizeof(keybuffer) - 1) | |
585 | { | |
586 | printf("**** Overlong key encountered: %s\n", key); | |
587 | return 1; | |
588 | } | |
589 | Ustrcpy(keybuffer, key); | |
059ec3d9 | 590 | |
0a6c178c | 591 | if (!(value = dbfn_read_with_length(dbm, keybuffer, &length))) |
059ec3d9 PH |
592 | fprintf(stderr, "**** Entry \"%s\" was in the key scan, but the record " |
593 | "was not found in the file - something is wrong!\n", | |
594 | CS keybuffer); | |
595 | else | |
596 | { | |
597 | /* Note: don't use print_time more than once in one statement, since | |
598 | it uses a single buffer. */ | |
599 | ||
600 | switch(dbdata_type) | |
601 | { | |
602 | case type_retry: | |
d7978c0f JH |
603 | retry = (dbdata_retry *)value; |
604 | printf(" %s %d %d %s\n%s ", keybuffer, retry->basic_errno, | |
605 | retry->more_errno, retry->text, | |
606 | print_time(retry->first_failed)); | |
607 | printf("%s ", print_time(retry->last_try)); | |
608 | printf("%s %s\n", print_time(retry->next_try), | |
609 | (retry->expired)? "*" : ""); | |
610 | break; | |
059ec3d9 PH |
611 | |
612 | case type_wait: | |
d7978c0f JH |
613 | wait = (dbdata_wait *)value; |
614 | printf("%s ", keybuffer); | |
615 | t = wait->text; | |
616 | name[MESSAGE_ID_LENGTH] = 0; | |
617 | ||
618 | if (wait->count > WAIT_NAME_MAX) | |
619 | { | |
620 | fprintf(stderr, | |
621 | "**** Data for %s corrupted\n count=%d=0x%x max=%d\n", | |
622 | CS keybuffer, wait->count, wait->count, WAIT_NAME_MAX); | |
623 | wait->count = WAIT_NAME_MAX; | |
624 | yield = count_bad = 1; | |
625 | } | |
626 | for (int i = 1; i <= wait->count; i++) | |
627 | { | |
628 | Ustrncpy(name, t, MESSAGE_ID_LENGTH); | |
629 | if (count_bad && name[0] == 0) break; | |
630 | if (Ustrlen(name) != MESSAGE_ID_LENGTH || | |
631 | Ustrspn(name, "0123456789" | |
632 | "abcdefghijklmnopqrstuvwxyz" | |
633 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ-") != MESSAGE_ID_LENGTH) | |
634 | { | |
635 | fprintf(stderr, | |
636 | "**** Data for %s corrupted: bad character in message id\n", | |
637 | CS keybuffer); | |
638 | for (int j = 0; j < MESSAGE_ID_LENGTH; j++) | |
639 | fprintf(stderr, "%02x ", name[j]); | |
640 | fprintf(stderr, "\n"); | |
641 | yield = 1; | |
642 | break; | |
643 | } | |
644 | printf("%s ", name); | |
645 | t += MESSAGE_ID_LENGTH; | |
646 | } | |
647 | printf("\n"); | |
648 | break; | |
059ec3d9 PH |
649 | |
650 | case type_misc: | |
d7978c0f JH |
651 | printf("%s %s\n", print_time(((dbdata_generic *)value)->time_stamp), |
652 | keybuffer); | |
653 | break; | |
059ec3d9 PH |
654 | |
655 | case type_callout: | |
d7978c0f JH |
656 | callout = (dbdata_callout_cache *)value; |
657 | ||
658 | /* New-style address record */ | |
659 | ||
660 | if (length == sizeof(dbdata_callout_cache_address)) | |
661 | { | |
662 | printf("%s %s callout=%s\n", | |
663 | print_time(((dbdata_generic *)value)->time_stamp), | |
664 | keybuffer, | |
665 | print_cache(callout->result)); | |
666 | } | |
667 | ||
668 | /* New-style domain record */ | |
669 | ||
670 | else if (length == sizeof(dbdata_callout_cache)) | |
671 | { | |
672 | printf("%s %s callout=%s postmaster=%s", | |
673 | print_time(((dbdata_generic *)value)->time_stamp), | |
674 | keybuffer, | |
675 | print_cache(callout->result), | |
676 | print_cache(callout->postmaster_result)); | |
677 | if (callout->postmaster_result != ccache_unknown) | |
678 | printf(" (%s)", print_time(callout->postmaster_stamp)); | |
679 | printf(" random=%s", print_cache(callout->random_result)); | |
680 | if (callout->random_result != ccache_unknown) | |
681 | printf(" (%s)", print_time(callout->random_stamp)); | |
682 | printf("\n"); | |
683 | } | |
684 | ||
685 | break; | |
870f6ba8 TF |
686 | |
687 | case type_ratelimit: | |
d7978c0f JH |
688 | if (Ustrstr(key, "/unique/") != NULL && length >= sizeof(*rate_unique)) |
689 | { | |
690 | ratelimit = (dbdata_ratelimit *)value; | |
691 | rate_unique = (dbdata_ratelimit_unique *)value; | |
692 | printf("%s.%06d rate: %10.3f epoch: %s size: %u key: %s\n", | |
693 | print_time(ratelimit->time_stamp), | |
694 | ratelimit->time_usec, ratelimit->rate, | |
695 | print_time(rate_unique->bloom_epoch), rate_unique->bloom_size, | |
696 | keybuffer); | |
697 | } | |
698 | else | |
699 | { | |
700 | ratelimit = (dbdata_ratelimit *)value; | |
701 | printf("%s.%06d rate: %10.3f key: %s\n", | |
702 | print_time(ratelimit->time_stamp), | |
703 | ratelimit->time_usec, ratelimit->rate, | |
704 | keybuffer); | |
705 | } | |
706 | break; | |
b10c87b3 JH |
707 | |
708 | case type_tls: | |
709 | session = (dbdata_tls_session *)value; | |
710 | printf(" %s %.*s\n", keybuffer, length, session->session); | |
711 | break; | |
059ec3d9 | 712 | } |
059ec3d9 | 713 | } |
f3ebb786 | 714 | store_reset(reset_point); |
059ec3d9 PH |
715 | } |
716 | ||
717 | dbfn_close(dbm); | |
718 | return yield; | |
719 | } | |
720 | ||
721 | #endif /* EXIM_DUMPDB */ | |
722 | ||
723 | ||
724 | ||
725 | ||
726 | #ifdef EXIM_FIXDB | |
727 | /************************************************* | |
728 | * The exim_fixdb main program * | |
729 | *************************************************/ | |
730 | ||
731 | /* In order not to hold the database lock any longer than is necessary, each | |
732 | operation on the database uses a separate open/close call. This is expensive, | |
733 | but then using this utility is not expected to be very common. Its main use is | |
734 | to provide a way of patching up hints databases in order to run tests. | |
735 | ||
736 | Syntax of commands: | |
737 | ||
738 | (1) <record name> | |
739 | This causes the data from the given record to be displayed, or "not found" | |
740 | to be output. Note that in the retry database, destination names are | |
741 | preceded by R: or T: for router or transport retry info. | |
742 | ||
743 | (2) <record name> d | |
744 | This causes the given record to be deleted or "not found" to be output. | |
745 | ||
746 | (3) <record name> <field number> <value> | |
747 | This sets the given value into the given field, identified by a number | |
748 | which is output by the display command. Not all types of record can | |
749 | be changed. | |
750 | ||
751 | (4) q | |
752 | This exits from exim_fixdb. | |
753 | ||
754 | If the record name is omitted from (2) or (3), the previously used record name | |
755 | is re-used. */ | |
756 | ||
757 | ||
758 | int main(int argc, char **cargv) | |
759 | { | |
760 | int dbdata_type; | |
761 | uschar **argv = USS cargv; | |
762 | uschar buffer[256]; | |
763 | uschar name[256]; | |
f3ebb786 | 764 | rmark reset_point; |
059ec3d9 PH |
765 | |
766 | name[0] = 0; /* No name set */ | |
767 | ||
768 | /* Sort out the database type, verify what we are working on and then process | |
769 | user requests */ | |
770 | ||
771 | dbdata_type = check_args(argc, argv, US"fixdb", US""); | |
772 | printf("Modifying Exim hints database %s/db/%s\n", argv[1], argv[2]); | |
773 | ||
f3ebb786 | 774 | for(; (reset_point = store_mark()); store_reset(reset_point)) |
059ec3d9 PH |
775 | { |
776 | open_db dbblock; | |
777 | open_db *dbm; | |
778 | void *record; | |
779 | dbdata_retry *retry; | |
780 | dbdata_wait *wait; | |
781 | dbdata_callout_cache *callout; | |
870f6ba8 | 782 | dbdata_ratelimit *ratelimit; |
c99ce5c9 | 783 | dbdata_ratelimit_unique *rate_unique; |
b10c87b3 | 784 | dbdata_tls_session *session; |
d7978c0f | 785 | int oldlength; |
059ec3d9 PH |
786 | uschar *t; |
787 | uschar field[256], value[256]; | |
788 | ||
059ec3d9 PH |
789 | printf("> "); |
790 | if (Ufgets(buffer, 256, stdin) == NULL) break; | |
791 | ||
792 | buffer[Ustrlen(buffer)-1] = 0; | |
793 | field[0] = value[0] = 0; | |
794 | ||
795 | /* If the buffer contains just one digit, or just consists of "d", use the | |
796 | previous name for an update. */ | |
797 | ||
2695e54e | 798 | if ((isdigit((uschar)buffer[0]) && (buffer[1] == ' ' || buffer[1] == '\0')) |
2e88a017 | 799 | || Ustrcmp(buffer, "d") == 0) |
059ec3d9 PH |
800 | { |
801 | if (name[0] == 0) | |
802 | { | |
803 | printf("No previous record name is set\n"); | |
804 | continue; | |
805 | } | |
ff790e47 | 806 | (void)sscanf(CS buffer, "%s %s", field, value); |
059ec3d9 PH |
807 | } |
808 | else | |
809 | { | |
810 | name[0] = 0; | |
ff790e47 | 811 | (void)sscanf(CS buffer, "%s %s %s", name, field, value); |
059ec3d9 PH |
812 | } |
813 | ||
814 | /* Handle an update request */ | |
815 | ||
816 | if (field[0] != 0) | |
817 | { | |
818 | int verify = 1; | |
c99ce5c9 | 819 | spool_directory = argv[1]; |
0a6c178c | 820 | |
b10c87b3 | 821 | if (!(dbm = dbfn_open(argv[2], O_RDWR, &dbblock, FALSE, TRUE))) |
0a6c178c | 822 | continue; |
059ec3d9 PH |
823 | |
824 | if (Ustrcmp(field, "d") == 0) | |
825 | { | |
826 | if (value[0] != 0) printf("unexpected value after \"d\"\n"); | |
827 | else printf("%s\n", (dbfn_delete(dbm, name) < 0)? | |
828 | "not found" : "deleted"); | |
829 | dbfn_close(dbm); | |
830 | continue; | |
831 | } | |
832 | ||
833 | else if (isdigit((uschar)field[0])) | |
834 | { | |
835 | int fieldno = Uatoi(field); | |
836 | if (value[0] == 0) | |
837 | { | |
838 | printf("value missing\n"); | |
839 | dbfn_close(dbm); | |
840 | continue; | |
841 | } | |
842 | else | |
843 | { | |
844 | record = dbfn_read_with_length(dbm, name, &oldlength); | |
845 | if (record == NULL) printf("not found\n"); else | |
846 | { | |
847 | time_t tt; | |
4dc2379a | 848 | /*int length = 0; Stops compiler warning */ |
059ec3d9 PH |
849 | |
850 | switch(dbdata_type) | |
851 | { | |
852 | case type_retry: | |
d7978c0f JH |
853 | retry = (dbdata_retry *)record; |
854 | /* length = sizeof(dbdata_retry) + Ustrlen(retry->text); */ | |
855 | ||
856 | switch(fieldno) | |
857 | { | |
858 | case 0: retry->basic_errno = Uatoi(value); | |
859 | break; | |
860 | case 1: retry->more_errno = Uatoi(value); | |
861 | break; | |
862 | case 2: if ((tt = read_time(value)) > 0) retry->first_failed = tt; | |
863 | else printf("bad time value\n"); | |
864 | break; | |
865 | case 3: if ((tt = read_time(value)) > 0) retry->last_try = tt; | |
866 | else printf("bad time value\n"); | |
867 | break; | |
868 | case 4: if ((tt = read_time(value)) > 0) retry->next_try = tt; | |
869 | else printf("bad time value\n"); | |
870 | break; | |
871 | case 5: if (Ustrcmp(value, "yes") == 0) retry->expired = TRUE; | |
872 | else if (Ustrcmp(value, "no") == 0) retry->expired = FALSE; | |
873 | else printf("\"yes\" or \"no\" expected=n"); | |
874 | break; | |
875 | default: printf("unknown field number\n"); | |
876 | verify = 0; | |
877 | break; | |
878 | } | |
879 | break; | |
059ec3d9 PH |
880 | |
881 | case type_wait: | |
d7978c0f JH |
882 | printf("Can't change contents of wait database record\n"); |
883 | break; | |
059ec3d9 PH |
884 | |
885 | case type_misc: | |
d7978c0f JH |
886 | printf("Can't change contents of misc database record\n"); |
887 | break; | |
059ec3d9 PH |
888 | |
889 | case type_callout: | |
d7978c0f JH |
890 | callout = (dbdata_callout_cache *)record; |
891 | /* length = sizeof(dbdata_callout_cache); */ | |
892 | switch(fieldno) | |
893 | { | |
894 | case 0: callout->result = Uatoi(value); | |
895 | break; | |
896 | case 1: callout->postmaster_result = Uatoi(value); | |
897 | break; | |
898 | case 2: callout->random_result = Uatoi(value); | |
899 | break; | |
900 | default: printf("unknown field number\n"); | |
901 | verify = 0; | |
902 | break; | |
903 | } | |
904 | break; | |
870f6ba8 TF |
905 | |
906 | case type_ratelimit: | |
d7978c0f JH |
907 | ratelimit = (dbdata_ratelimit *)record; |
908 | switch(fieldno) | |
909 | { | |
910 | case 0: if ((tt = read_time(value)) > 0) ratelimit->time_stamp = tt; | |
911 | else printf("bad time value\n"); | |
912 | break; | |
913 | case 1: ratelimit->time_usec = Uatoi(value); | |
914 | break; | |
915 | case 2: ratelimit->rate = Ustrtod(value, NULL); | |
916 | break; | |
917 | case 3: if (Ustrstr(name, "/unique/") != NULL | |
918 | && oldlength >= sizeof(dbdata_ratelimit_unique)) | |
919 | { | |
920 | rate_unique = (dbdata_ratelimit_unique *)record; | |
921 | if ((tt = read_time(value)) > 0) rate_unique->bloom_epoch = tt; | |
922 | else printf("bad time value\n"); | |
923 | break; | |
924 | } | |
925 | /* else fall through */ | |
926 | case 4: | |
927 | case 5: if (Ustrstr(name, "/unique/") != NULL | |
928 | && oldlength >= sizeof(dbdata_ratelimit_unique)) | |
929 | { | |
930 | /* see acl.c */ | |
931 | BOOL seen; | |
932 | unsigned hash, hinc; | |
933 | uschar md5sum[16]; | |
934 | md5 md5info; | |
935 | md5_start(&md5info); | |
936 | md5_end(&md5info, value, Ustrlen(value), md5sum); | |
937 | hash = md5sum[0] << 0 | md5sum[1] << 8 | |
938 | | md5sum[2] << 16 | md5sum[3] << 24; | |
939 | hinc = md5sum[4] << 0 | md5sum[5] << 8 | |
940 | | md5sum[6] << 16 | md5sum[7] << 24; | |
941 | rate_unique = (dbdata_ratelimit_unique *)record; | |
942 | seen = TRUE; | |
943 | for (unsigned n = 0; n < 8; n++, hash += hinc) | |
944 | { | |
945 | int bit = 1 << (hash % 8); | |
946 | int byte = (hash / 8) % rate_unique->bloom_size; | |
947 | if ((rate_unique->bloom[byte] & bit) == 0) | |
948 | { | |
949 | seen = FALSE; | |
950 | if (fieldno == 5) rate_unique->bloom[byte] |= bit; | |
951 | } | |
952 | } | |
953 | printf("%s %s\n", | |
954 | seen ? "seen" : fieldno == 5 ? "added" : "unseen", value); | |
955 | break; | |
956 | } | |
957 | /* else fall through */ | |
958 | default: printf("unknown field number\n"); | |
959 | verify = 0; | |
960 | break; | |
961 | } | |
962 | break; | |
b10c87b3 JH |
963 | |
964 | case type_tls: | |
965 | printf("Can't change contents of tls database record\n"); | |
966 | break; | |
059ec3d9 PH |
967 | } |
968 | ||
c99ce5c9 | 969 | dbfn_write(dbm, name, record, oldlength); |
059ec3d9 PH |
970 | } |
971 | } | |
972 | } | |
973 | ||
974 | else | |
975 | { | |
976 | printf("field number or d expected\n"); | |
977 | verify = 0; | |
978 | } | |
979 | ||
980 | dbfn_close(dbm); | |
981 | if (!verify) continue; | |
982 | } | |
983 | ||
984 | /* The "name" q causes an exit */ | |
985 | ||
986 | else if (Ustrcmp(name, "q") == 0) return 0; | |
987 | ||
988 | /* Handle a read request, or verify after an update. */ | |
989 | ||
c99ce5c9 | 990 | spool_directory = argv[1]; |
b10c87b3 | 991 | if (!(dbm = dbfn_open(argv[2], O_RDONLY, &dbblock, FALSE, TRUE))) |
0a6c178c | 992 | continue; |
059ec3d9 | 993 | |
0a6c178c | 994 | if (!(record = dbfn_read_with_length(dbm, name, &oldlength))) |
059ec3d9 PH |
995 | { |
996 | printf("record %s not found\n", name); | |
997 | name[0] = 0; | |
998 | } | |
999 | else | |
1000 | { | |
1001 | int count_bad = 0; | |
1002 | printf("%s\n", CS print_time(((dbdata_generic *)record)->time_stamp)); | |
1003 | switch(dbdata_type) | |
1004 | { | |
1005 | case type_retry: | |
d7978c0f JH |
1006 | retry = (dbdata_retry *)record; |
1007 | printf("0 error number: %d %s\n", retry->basic_errno, retry->text); | |
1008 | printf("1 extra data: %d\n", retry->more_errno); | |
1009 | printf("2 first failed: %s\n", print_time(retry->first_failed)); | |
1010 | printf("3 last try: %s\n", print_time(retry->last_try)); | |
1011 | printf("4 next try: %s\n", print_time(retry->next_try)); | |
1012 | printf("5 expired: %s\n", (retry->expired)? "yes" : "no"); | |
1013 | break; | |
059ec3d9 PH |
1014 | |
1015 | case type_wait: | |
d7978c0f JH |
1016 | wait = (dbdata_wait *)record; |
1017 | t = wait->text; | |
1018 | printf("Sequence: %d\n", wait->sequence); | |
1019 | if (wait->count > WAIT_NAME_MAX) | |
1020 | { | |
1021 | printf("**** Data corrupted: count=%d=0x%x max=%d ****\n", wait->count, | |
1022 | wait->count, WAIT_NAME_MAX); | |
1023 | wait->count = WAIT_NAME_MAX; | |
1024 | count_bad = 1; | |
1025 | } | |
1026 | for (int i = 1; i <= wait->count; i++) | |
1027 | { | |
1028 | Ustrncpy(value, t, MESSAGE_ID_LENGTH); | |
1029 | value[MESSAGE_ID_LENGTH] = 0; | |
1030 | if (count_bad && value[0] == 0) break; | |
1031 | if (Ustrlen(value) != MESSAGE_ID_LENGTH || | |
1032 | Ustrspn(value, "0123456789" | |
1033 | "abcdefghijklmnopqrstuvwxyz" | |
1034 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ-") != MESSAGE_ID_LENGTH) | |
1035 | { | |
1036 | printf("\n**** Data corrupted: bad character in message id ****\n"); | |
1037 | for (int j = 0; j < MESSAGE_ID_LENGTH; j++) | |
1038 | printf("%02x ", value[j]); | |
1039 | printf("\n"); | |
1040 | break; | |
1041 | } | |
1042 | printf("%s ", value); | |
1043 | t += MESSAGE_ID_LENGTH; | |
1044 | } | |
1045 | printf("\n"); | |
1046 | break; | |
059ec3d9 PH |
1047 | |
1048 | case type_misc: | |
d7978c0f | 1049 | break; |
059ec3d9 PH |
1050 | |
1051 | case type_callout: | |
d7978c0f JH |
1052 | callout = (dbdata_callout_cache *)record; |
1053 | printf("0 callout: %s (%d)\n", print_cache(callout->result), | |
1054 | callout->result); | |
1055 | if (oldlength > sizeof(dbdata_callout_cache_address)) | |
1056 | { | |
1057 | printf("1 postmaster: %s (%d)\n", print_cache(callout->postmaster_result), | |
1058 | callout->postmaster_result); | |
1059 | printf("2 random: %s (%d)\n", print_cache(callout->random_result), | |
1060 | callout->random_result); | |
1061 | } | |
1062 | break; | |
870f6ba8 TF |
1063 | |
1064 | case type_ratelimit: | |
d7978c0f JH |
1065 | ratelimit = (dbdata_ratelimit *)record; |
1066 | printf("0 time stamp: %s\n", print_time(ratelimit->time_stamp)); | |
1067 | printf("1 fract. time: .%06d\n", ratelimit->time_usec); | |
1068 | printf("2 sender rate: % .3f\n", ratelimit->rate); | |
1069 | if (Ustrstr(name, "/unique/") != NULL | |
1070 | && oldlength >= sizeof(dbdata_ratelimit_unique)) | |
1071 | { | |
1072 | rate_unique = (dbdata_ratelimit_unique *)record; | |
1073 | printf("3 filter epoch: %s\n", print_time(rate_unique->bloom_epoch)); | |
1074 | printf("4 test filter membership\n"); | |
1075 | printf("5 add element to filter\n"); | |
1076 | } | |
1077 | break; | |
b10c87b3 JH |
1078 | |
1079 | case type_tls: | |
1080 | session = (dbdata_tls_session *)value; | |
1081 | printf("0 time stamp: %s\n", print_time(session->time_stamp)); | |
1082 | printf("1 session: .%s\n", session->session); | |
1083 | break; | |
059ec3d9 PH |
1084 | } |
1085 | } | |
1086 | ||
1087 | /* The database is closed after each request */ | |
1088 | ||
1089 | dbfn_close(dbm); | |
1090 | } | |
1091 | ||
1092 | printf("\n"); | |
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | #endif /* EXIM_FIXDB */ | |
1097 | ||
1098 | ||
1099 | ||
1100 | #ifdef EXIM_TIDYDB | |
1101 | /************************************************* | |
1102 | * The exim_tidydb main program * | |
1103 | *************************************************/ | |
1104 | ||
1105 | ||
1106 | /* Utility program to tidy the contents of an exim database file. There is one | |
1107 | option: | |
1108 | ||
1109 | -t <time> expiry time for old records - default 30 days | |
1110 | ||
1111 | For backwards compatibility, an -f option is recognized and ignored. (It used | |
1112 | to request a "full" tidy. This version always does the whole job.) */ | |
1113 | ||
1114 | ||
1115 | typedef struct key_item { | |
1116 | struct key_item *next; | |
1117 | uschar key[1]; | |
1118 | } key_item; | |
1119 | ||
1120 | ||
1121 | int main(int argc, char **cargv) | |
1122 | { | |
1123 | struct stat statbuf; | |
1124 | int maxkeep = 30 * 24 * 60 * 60; | |
1125 | int dbdata_type, i, oldest, path_len; | |
1126 | key_item *keychain = NULL; | |
f3ebb786 | 1127 | rmark reset_point; |
059ec3d9 PH |
1128 | open_db dbblock; |
1129 | open_db *dbm; | |
1130 | EXIM_CURSOR *cursor; | |
1131 | uschar **argv = USS cargv; | |
1132 | uschar buffer[256]; | |
1133 | uschar *key; | |
1134 | ||
1135 | /* Scan the options */ | |
1136 | ||
1137 | for (i = 1; i < argc; i++) | |
1138 | { | |
1139 | if (argv[i][0] != '-') break; | |
1140 | if (Ustrcmp(argv[i], "-f") == 0) continue; | |
1141 | if (Ustrcmp(argv[i], "-t") == 0) | |
1142 | { | |
1143 | uschar *s; | |
1144 | s = argv[++i]; | |
1145 | maxkeep = 0; | |
1146 | while (*s != 0) | |
1147 | { | |
1148 | int value, count; | |
1149 | if (!isdigit(*s)) usage(US"tidydb", US" [-t <time>]"); | |
1150 | (void)sscanf(CS s, "%d%n", &value, &count); | |
1151 | s += count; | |
1152 | switch (*s) | |
1153 | { | |
1154 | case 'w': value *= 7; | |
1155 | case 'd': value *= 24; | |
1156 | case 'h': value *= 60; | |
1157 | case 'm': value *= 60; | |
1158 | case 's': s++; | |
1159 | break; | |
1160 | default: usage(US"tidydb", US" [-t <time>]"); | |
1161 | } | |
1162 | maxkeep += value; | |
1163 | } | |
1164 | } | |
1165 | else usage(US"tidydb", US" [-t <time>]"); | |
1166 | } | |
1167 | ||
1168 | /* Adjust argument values and process arguments */ | |
1169 | ||
1170 | argc -= --i; | |
1171 | argv += i; | |
1172 | ||
1173 | dbdata_type = check_args(argc, argv, US"tidydb", US" [-t <time>]"); | |
1174 | ||
1175 | /* Compute the oldest keep time, verify what we are doing, and open the | |
1176 | database */ | |
1177 | ||
1178 | oldest = time(NULL) - maxkeep; | |
1179 | printf("Tidying Exim hints database %s/db/%s\n", argv[1], argv[2]); | |
1180 | ||
c99ce5c9 | 1181 | spool_directory = argv[1]; |
b10c87b3 | 1182 | if (!(dbm = dbfn_open(argv[2], O_RDWR, &dbblock, FALSE, TRUE))) |
0a6c178c | 1183 | exit(1); |
059ec3d9 PH |
1184 | |
1185 | /* Prepare for building file names */ | |
1186 | ||
1187 | sprintf(CS buffer, "%s/input/", argv[1]); | |
1188 | path_len = Ustrlen(buffer); | |
1189 | ||
1190 | ||
1191 | /* It appears, by experiment, that it is a bad idea to make changes | |
1192 | to the file while scanning it. Pity the man page doesn't warn you about that. | |
1193 | Therefore, we scan and build a list of all the keys. Then we use that to | |
1194 | read the records and possibly update them. */ | |
1195 | ||
0a6c178c JH |
1196 | for (key = dbfn_scan(dbm, TRUE, &cursor); |
1197 | key; | |
1198 | key = dbfn_scan(dbm, FALSE, &cursor)) | |
059ec3d9 | 1199 | { |
f3ebb786 | 1200 | key_item *k = store_get(sizeof(key_item) + Ustrlen(key), is_tainted(key)); |
059ec3d9 PH |
1201 | k->next = keychain; |
1202 | keychain = k; | |
1203 | Ustrcpy(k->key, key); | |
059ec3d9 PH |
1204 | } |
1205 | ||
1206 | /* Now scan the collected keys and operate on the records, resetting | |
1207 | the store each time round. */ | |
1208 | ||
f3ebb786 | 1209 | for (; keychain && (reset_point = store_mark()); store_reset(reset_point)) |
059ec3d9 PH |
1210 | { |
1211 | dbdata_generic *value; | |
1212 | ||
059ec3d9 PH |
1213 | key = keychain->key; |
1214 | keychain = keychain->next; | |
1215 | value = dbfn_read_with_length(dbm, key, NULL); | |
1216 | ||
1217 | /* A continuation record may have been deleted or renamed already, so | |
1218 | non-existence is not serious. */ | |
1219 | ||
1220 | if (value == NULL) continue; | |
1221 | ||
1222 | /* Delete if too old */ | |
1223 | ||
1224 | if (value->time_stamp < oldest) | |
1225 | { | |
1226 | printf("deleted %s (too old)\n", key); | |
1227 | dbfn_delete(dbm, key); | |
1228 | continue; | |
1229 | } | |
1230 | ||
1231 | /* Do database-specific tidying for wait databases, and message- | |
1232 | specific tidying for the retry database. */ | |
1233 | ||
1234 | if (dbdata_type == type_wait) | |
1235 | { | |
1236 | dbdata_wait *wait = (dbdata_wait *)value; | |
1237 | BOOL update = FALSE; | |
1238 | ||
1239 | /* Leave corrupt records alone */ | |
1240 | ||
1241 | if (wait->count > WAIT_NAME_MAX) | |
1242 | { | |
1243 | printf("**** Data for %s corrupted\n count=%d=0x%x max=%d\n", | |
1244 | key, wait->count, wait->count, WAIT_NAME_MAX); | |
1245 | continue; | |
1246 | } | |
1247 | ||
1248 | /* Loop for renamed continuation records. For each message id, | |
1249 | check to see if the message exists, and if not, remove its entry | |
1250 | from the record. Because of the possibility of split input directories, | |
1251 | we must look in both possible places for a -D file. */ | |
1252 | ||
1253 | for (;;) | |
1254 | { | |
059ec3d9 PH |
1255 | int length = wait->count * MESSAGE_ID_LENGTH; |
1256 | ||
d7978c0f | 1257 | for (int offset = length - MESSAGE_ID_LENGTH; |
059ec3d9 PH |
1258 | offset >= 0; offset -= MESSAGE_ID_LENGTH) |
1259 | { | |
1260 | Ustrncpy(buffer+path_len, wait->text + offset, MESSAGE_ID_LENGTH); | |
1261 | sprintf(CS(buffer+path_len + MESSAGE_ID_LENGTH), "-D"); | |
1262 | ||
1263 | if (Ustat(buffer, &statbuf) != 0) | |
1264 | { | |
1265 | buffer[path_len] = wait->text[offset+5]; | |
1266 | buffer[path_len+1] = '/'; | |
1267 | Ustrncpy(buffer+path_len+2, wait->text + offset, MESSAGE_ID_LENGTH); | |
1268 | sprintf(CS(buffer+path_len+2 + MESSAGE_ID_LENGTH), "-D"); | |
1269 | ||
1270 | if (Ustat(buffer, &statbuf) != 0) | |
1271 | { | |
1272 | int left = length - offset - MESSAGE_ID_LENGTH; | |
1273 | if (left > 0) Ustrncpy(wait->text + offset, | |
1274 | wait->text + offset + MESSAGE_ID_LENGTH, left); | |
1275 | wait->count--; | |
1276 | length -= MESSAGE_ID_LENGTH; | |
1277 | update = TRUE; | |
1278 | } | |
1279 | } | |
1280 | } | |
1281 | ||
1282 | /* If record is empty and the main record, either delete it or rename | |
1283 | the next continuation, repeating if that is also empty. */ | |
1284 | ||
1285 | if (wait->count == 0 && Ustrchr(key, ':') == NULL) | |
1286 | { | |
1287 | while (wait->count == 0 && wait->sequence > 0) | |
1288 | { | |
1289 | uschar newkey[256]; | |
1290 | dbdata_generic *newvalue; | |
1291 | sprintf(CS newkey, "%s:%d", key, wait->sequence - 1); | |
1292 | newvalue = dbfn_read_with_length(dbm, newkey, NULL); | |
1293 | if (newvalue != NULL) | |
1294 | { | |
1295 | value = newvalue; | |
1296 | wait = (dbdata_wait *)newvalue; | |
1297 | dbfn_delete(dbm, newkey); | |
1298 | printf("renamed %s\n", newkey); | |
1299 | update = TRUE; | |
1300 | } | |
1301 | else wait->sequence--; | |
1302 | } | |
1303 | ||
1304 | /* If we have ended up with an empty main record, delete it | |
1305 | and break the loop. Otherwise the new record will be scanned. */ | |
1306 | ||
1307 | if (wait->count == 0 && wait->sequence == 0) | |
1308 | { | |
1309 | dbfn_delete(dbm, key); | |
1310 | printf("deleted %s (empty)\n", key); | |
1311 | update = FALSE; | |
1312 | break; | |
1313 | } | |
1314 | } | |
1315 | ||
1316 | /* If not an empty main record, break the loop */ | |
1317 | ||
1318 | else break; | |
1319 | } | |
1320 | ||
1321 | /* Re-write the record if required */ | |
1322 | ||
1323 | if (update) | |
1324 | { | |
1325 | printf("updated %s\n", key); | |
1326 | dbfn_write(dbm, key, wait, sizeof(dbdata_wait) + | |
1327 | wait->count * MESSAGE_ID_LENGTH); | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | /* If a retry record's key ends with a message-id, check that that message | |
1332 | still exists; if not, remove this record. */ | |
1333 | ||
1334 | else if (dbdata_type == type_retry) | |
1335 | { | |
1336 | uschar *id; | |
1337 | int len = Ustrlen(key); | |
1338 | ||
1339 | if (len < MESSAGE_ID_LENGTH + 1) continue; | |
1340 | id = key + len - MESSAGE_ID_LENGTH - 1; | |
1341 | if (*id++ != ':') continue; | |
1342 | ||
1343 | for (i = 0; i < MESSAGE_ID_LENGTH; i++) | |
059ec3d9 PH |
1344 | if (i == 6 || i == 13) |
1345 | { if (id[i] != '-') break; } | |
1346 | else | |
1347 | { if (!isalnum(id[i])) break; } | |
059ec3d9 PH |
1348 | if (i < MESSAGE_ID_LENGTH) continue; |
1349 | ||
1350 | Ustrncpy(buffer + path_len, id, MESSAGE_ID_LENGTH); | |
1351 | sprintf(CS(buffer + path_len + MESSAGE_ID_LENGTH), "-D"); | |
1352 | ||
1353 | if (Ustat(buffer, &statbuf) != 0) | |
1354 | { | |
0ec020ea PH |
1355 | sprintf(CS(buffer + path_len), "%c/%s-D", id[5], id); |
1356 | if (Ustat(buffer, &statbuf) != 0) | |
1357 | { | |
1358 | dbfn_delete(dbm, key); | |
1359 | printf("deleted %s (no message)\n", key); | |
1360 | } | |
059ec3d9 PH |
1361 | } |
1362 | } | |
1363 | } | |
1364 | ||
1365 | dbfn_close(dbm); | |
1366 | printf("Tidying complete\n"); | |
1367 | return 0; | |
1368 | } | |
1369 | ||
1370 | #endif /* EXIM_TIDYDB */ | |
1371 | ||
1372 | /* End of exim_dbutil.c */ |