Commit | Line | Data |
---|---|---|
059ec3d9 PH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
80fea873 | 5 | /* Copyright (c) University of Cambridge 1995 - 2016 */ |
059ec3d9 PH |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | /* Functions for reading spool files. When compiling for a utility (eximon), | |
9 | not all are needed, and some functionality can be cut out. */ | |
10 | ||
11 | ||
12 | #include "exim.h" | |
13 | ||
14 | ||
15 | ||
16 | #ifndef COMPILE_UTILITY | |
17 | /************************************************* | |
18 | * Open and lock data file * | |
19 | *************************************************/ | |
20 | ||
21 | /* The data file is the one that is used for locking, because the header file | |
22 | can get replaced during delivery because of header rewriting. The file has | |
23 | to opened with write access so that we can get an exclusive lock, but in | |
24 | fact it won't be written to. Just in case there's a major disaster (e.g. | |
25 | overwriting some other file descriptor with the value of this one), open it | |
26 | with append. | |
27 | ||
28 | Argument: the id of the message | |
789f8a4f | 29 | Returns: fd if file successfully opened and locked, else -1 |
059ec3d9 | 30 | |
789f8a4f | 31 | Side effect: message_subdir is set for the (possibly split) spool directory |
059ec3d9 PH |
32 | */ |
33 | ||
789f8a4f | 34 | int |
059ec3d9 PH |
35 | spool_open_datafile(uschar *id) |
36 | { | |
37 | int i; | |
38 | struct stat statbuf; | |
39 | flock_t lock_data; | |
789f8a4f | 40 | int fd; |
059ec3d9 PH |
41 | |
42 | /* If split_spool_directory is set, first look for the file in the appropriate | |
43 | sub-directory of the input directory. If it is not found there, try the input | |
44 | directory itself, to pick up leftovers from before the splitting. If split_ | |
45 | spool_directory is not set, first look in the main input directory. If it is | |
46 | not found there, try the split sub-directory, in case it is left over from a | |
47 | splitting state. */ | |
48 | ||
49 | for (i = 0; i < 2; i++) | |
50 | { | |
41313d92 | 51 | uschar * fname; |
059ec3d9 | 52 | int save_errno; |
9befa1ca JH |
53 | |
54 | message_subdir[0] = split_spool_directory == i == 0 ? id[5] : 0; | |
41313d92 JH |
55 | fname = spool_fname(US"input", message_subdir, id, US"-D"); |
56 | DEBUG(D_deliver) debug_printf("Trying spool file %s\n", fname); | |
a2da3176 | 57 | |
41313d92 | 58 | if ((fd = Uopen(fname, O_RDWR | O_APPEND, 0)) >= 0) |
789f8a4f | 59 | break; |
059ec3d9 PH |
60 | save_errno = errno; |
61 | if (errno == ENOENT) | |
62 | { | |
63 | if (i == 0) continue; | |
64 | if (!queue_running) | |
9befa1ca JH |
65 | log_write(0, LOG_MAIN, "Spool%s%s file %s-D not found", |
66 | *queue_name ? " Q=" : "", | |
67 | *queue_name ? queue_name : "", | |
68 | id); | |
059ec3d9 | 69 | } |
9befa1ca JH |
70 | else |
71 | log_write(0, LOG_MAIN, "Spool error for %s: %s", fname, strerror(errno)); | |
059ec3d9 | 72 | errno = save_errno; |
789f8a4f | 73 | return -1; |
059ec3d9 PH |
74 | } |
75 | ||
76 | /* File is open and message_subdir is set. Set the close-on-exec flag, and lock | |
77 | the file. We lock only the first line of the file (containing the message ID) | |
78 | because this apparently is needed for running Exim under Cygwin. If the entire | |
79 | file is locked in one process, a sub-process cannot access it, even when passed | |
80 | an open file descriptor (at least, I think that's the Cygwin story). On real | |
81 | Unix systems it doesn't make any difference as long as Exim is consistent in | |
82 | what it locks. */ | |
83 | ||
789f8a4f | 84 | (void)fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | |
059ec3d9 PH |
85 | FD_CLOEXEC); |
86 | ||
87 | lock_data.l_type = F_WRLCK; | |
88 | lock_data.l_whence = SEEK_SET; | |
89 | lock_data.l_start = 0; | |
90 | lock_data.l_len = SPOOL_DATA_START_OFFSET; | |
91 | ||
789f8a4f | 92 | if (fcntl(fd, F_SETLK, &lock_data) < 0) |
059ec3d9 PH |
93 | { |
94 | log_write(L_skip_delivery, | |
95 | LOG_MAIN, | |
96 | "Spool file is locked (another process is handling this message)"); | |
789f8a4f | 97 | (void)close(fd); |
059ec3d9 | 98 | errno = 0; |
789f8a4f | 99 | return -1; |
059ec3d9 PH |
100 | } |
101 | ||
102 | /* Get the size of the data; don't include the leading filename line | |
103 | in the count, but add one for the newline before the data. */ | |
104 | ||
789f8a4f | 105 | if (fstat(fd, &statbuf) == 0) |
059ec3d9 PH |
106 | { |
107 | message_body_size = statbuf.st_size - SPOOL_DATA_START_OFFSET; | |
108 | message_size = message_body_size + 1; | |
109 | } | |
110 | ||
789f8a4f | 111 | return fd; |
059ec3d9 PH |
112 | } |
113 | #endif /* COMPILE_UTILITY */ | |
114 | ||
115 | ||
116 | ||
117 | /************************************************* | |
118 | * Read non-recipients tree from spool file * | |
119 | *************************************************/ | |
120 | ||
121 | /* The tree of non-recipients is written to the spool file in a form that | |
122 | makes it easy to read back into a tree. The format is as follows: | |
123 | ||
124 | . Each node is preceded by two letter(Y/N) indicating whether it has left | |
125 | or right children. There's one space after the two flags, before the name. | |
126 | ||
127 | . The left subtree (if any) then follows, then the right subtree (if any). | |
128 | ||
129 | This function is entered with the next input line in the buffer. Note we must | |
130 | save the right flag before recursing with the same buffer. | |
131 | ||
132 | Once the tree is read, we re-construct the balance fields by scanning the tree. | |
133 | I forgot to write them out originally, and the compatible fix is to do it this | |
134 | way. This initial local recursing function does the necessary. | |
135 | ||
136 | Arguments: | |
137 | node tree node | |
138 | ||
139 | Returns: maximum depth below the node, including the node itself | |
140 | */ | |
141 | ||
142 | static int | |
143 | count_below(tree_node *node) | |
144 | { | |
145 | int nleft, nright; | |
146 | if (node == NULL) return 0; | |
147 | nleft = count_below(node->left); | |
148 | nright = count_below(node->right); | |
149 | node->balance = (nleft > nright)? 1 : ((nright > nleft)? 2 : 0); | |
150 | return 1 + ((nleft > nright)? nleft : nright); | |
151 | } | |
152 | ||
153 | /* This is the real function... | |
154 | ||
155 | Arguments: | |
156 | connect pointer to the root of the tree | |
157 | f FILE to read data from | |
158 | buffer contains next input line; further lines read into it | |
159 | buffer_size size of the buffer | |
160 | ||
161 | Returns: FALSE on format error | |
162 | */ | |
163 | ||
164 | static BOOL | |
165 | read_nonrecipients_tree(tree_node **connect, FILE *f, uschar *buffer, | |
166 | int buffer_size) | |
167 | { | |
168 | tree_node *node; | |
169 | int n = Ustrlen(buffer); | |
170 | BOOL right = buffer[1] == 'Y'; | |
171 | ||
172 | if (n < 5) return FALSE; /* malformed line */ | |
173 | buffer[n-1] = 0; /* Remove \n */ | |
174 | node = store_get(sizeof(tree_node) + n - 3); | |
175 | *connect = node; | |
176 | Ustrcpy(node->name, buffer + 3); | |
177 | node->data.ptr = NULL; | |
178 | ||
179 | if (buffer[0] == 'Y') | |
180 | { | |
181 | if (Ufgets(buffer, buffer_size, f) == NULL || | |
182 | !read_nonrecipients_tree(&node->left, f, buffer, buffer_size)) | |
183 | return FALSE; | |
184 | } | |
185 | else node->left = NULL; | |
186 | ||
187 | if (right) | |
188 | { | |
189 | if (Ufgets(buffer, buffer_size, f) == NULL || | |
190 | !read_nonrecipients_tree(&node->right, f, buffer, buffer_size)) | |
191 | return FALSE; | |
192 | } | |
193 | else node->right = NULL; | |
194 | ||
195 | (void) count_below(*connect); | |
196 | return TRUE; | |
197 | } | |
198 | ||
199 | ||
200 | ||
201 | ||
202 | /************************************************* | |
203 | * Read spool header file * | |
204 | *************************************************/ | |
205 | ||
206 | /* This function reads a spool header file and places the data into the | |
207 | appropriate global variables. The header portion is always read, but header | |
208 | structures are built only if read_headers is set true. It isn't, for example, | |
209 | while generating -bp output. | |
210 | ||
211 | It may be possible for blocks of nulls (binary zeroes) to get written on the | |
212 | end of a file if there is a system crash during writing. It was observed on an | |
213 | earlier version of Exim that omitted to fsync() the files - this is thought to | |
214 | have been the cause of that incident, but in any case, this code must be robust | |
215 | against such an event, and if such a file is encountered, it must be treated as | |
216 | malformed. | |
217 | ||
218 | Arguments: | |
219 | name name of the header file, including the -H | |
220 | read_headers TRUE if in-store header structures are to be built | |
221 | subdir_set TRUE is message_subdir is already set | |
222 | ||
223 | Returns: spool_read_OK success | |
224 | spool_read_notopen open failed | |
225 | spool_read_enverror error in the envelope portion | |
226 | spool_read_hdrdrror error in the header portion | |
227 | */ | |
228 | ||
229 | int | |
230 | spool_read_header(uschar *name, BOOL read_headers, BOOL subdir_set) | |
231 | { | |
232 | FILE *f = NULL; | |
233 | int n; | |
234 | int rcount = 0; | |
235 | long int uid, gid; | |
236 | BOOL inheader = FALSE; | |
1e70f85b | 237 | uschar *p; |
059ec3d9 PH |
238 | |
239 | /* Reset all the global variables to their default values. However, there is | |
240 | one exception. DO NOT change the default value of dont_deliver, because it may | |
241 | be forced by an external setting. */ | |
242 | ||
38a0a95f | 243 | acl_var_c = acl_var_m = NULL; |
059ec3d9 PH |
244 | authenticated_id = NULL; |
245 | authenticated_sender = NULL; | |
246 | allow_unqualified_recipient = FALSE; | |
247 | allow_unqualified_sender = FALSE; | |
248 | body_linecount = 0; | |
249 | body_zerocount = 0; | |
250 | deliver_firsttime = FALSE; | |
251 | deliver_freeze = FALSE; | |
252 | deliver_frozen_at = 0; | |
253 | deliver_manual_thaw = FALSE; | |
254 | /* dont_deliver must NOT be reset */ | |
255 | header_list = header_last = NULL; | |
b08b24c8 | 256 | host_lookup_deferred = FALSE; |
059ec3d9 PH |
257 | host_lookup_failed = FALSE; |
258 | interface_address = NULL; | |
259 | interface_port = 0; | |
260 | local_error_message = FALSE; | |
261 | local_scan_data = NULL; | |
d677b2f2 | 262 | max_received_linelength = 0; |
059ec3d9 PH |
263 | message_linecount = 0; |
264 | received_protocol = NULL; | |
265 | received_count = 0; | |
266 | recipients_list = NULL; | |
267 | sender_address = NULL; | |
268 | sender_fullhost = NULL; | |
269 | sender_helo_name = NULL; | |
270 | sender_host_address = NULL; | |
271 | sender_host_name = NULL; | |
272 | sender_host_port = 0; | |
273 | sender_host_authenticated = NULL; | |
274 | sender_ident = NULL; | |
275 | sender_local = FALSE; | |
276 | sender_set_untrusted = FALSE; | |
1f5b4c3d | 277 | smtp_active_hostname = primary_hostname; |
059ec3d9 PH |
278 | tree_nonrecipients = NULL; |
279 | ||
8523533c TK |
280 | #ifdef EXPERIMENTAL_BRIGHTMAIL |
281 | bmi_run = 0; | |
282 | bmi_verdicts = NULL; | |
283 | #endif | |
284 | ||
80a47a2c | 285 | #ifndef DISABLE_DKIM |
9e5d6b55 | 286 | dkim_signers = NULL; |
80a47a2c TK |
287 | dkim_disable_verify = FALSE; |
288 | dkim_collect_input = FALSE; | |
f7572e5a TK |
289 | #endif |
290 | ||
059ec3d9 | 291 | #ifdef SUPPORT_TLS |
817d9f57 | 292 | tls_in.certificate_verified = FALSE; |
53a7196b JH |
293 | # ifdef EXPERIMENTAL_DANE |
294 | tls_in.dane_verified = FALSE; | |
295 | # endif | |
817d9f57 | 296 | tls_in.cipher = NULL; |
790fbb71 JH |
297 | # ifndef COMPILE_UTILITY /* tls support fns not built in */ |
298 | tls_free_cert(&tls_in.ourcert); | |
299 | tls_free_cert(&tls_in.peercert); | |
300 | # endif | |
817d9f57 JH |
301 | tls_in.peerdn = NULL; |
302 | tls_in.sni = NULL; | |
44662487 | 303 | tls_in.ocsp = OCSP_NOT_REQ; |
7be682ca | 304 | #endif |
059ec3d9 | 305 | |
8523533c | 306 | #ifdef WITH_CONTENT_SCAN |
3481c572 JH |
307 | spam_bar = NULL; |
308 | spam_score = NULL; | |
8523533c TK |
309 | spam_score_int = NULL; |
310 | #endif | |
311 | ||
8c5d388a | 312 | #if defined(SUPPORT_I18N) && !defined(COMPILE_UTILITY) |
7ade712c | 313 | message_smtputf8 = FALSE; |
3c8b3577 | 314 | message_utf8_downconvert = 0; |
7ade712c JH |
315 | #endif |
316 | ||
6c1c3d1d WB |
317 | dsn_ret = 0; |
318 | dsn_envid = NULL; | |
6c1c3d1d | 319 | |
059ec3d9 PH |
320 | /* Generate the full name and open the file. If message_subdir is already |
321 | set, just look in the given directory. Otherwise, look in both the split | |
322 | and unsplit directories, as for the data file above. */ | |
323 | ||
324 | for (n = 0; n < 2; n++) | |
325 | { | |
326 | if (!subdir_set) | |
a2da3176 | 327 | message_subdir[0] = split_spool_directory == (n == 0) ? name[5] : 0; |
41313d92 JH |
328 | |
329 | if ((f = Ufopen(spool_fname(US"input", message_subdir, name, US""), "rb"))) | |
330 | break; | |
331 | if (n != 0 || subdir_set || errno != ENOENT) | |
332 | return spool_read_notopen; | |
059ec3d9 PH |
333 | } |
334 | ||
335 | errno = 0; | |
336 | ||
337 | #ifndef COMPILE_UTILITY | |
338 | DEBUG(D_deliver) debug_printf("reading spool file %s\n", name); | |
339 | #endif /* COMPILE_UTILITY */ | |
340 | ||
341 | /* The first line of a spool file contains the message id followed by -H (i.e. | |
342 | the file name), in order to make the file self-identifying. */ | |
343 | ||
344 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; | |
345 | if (Ustrlen(big_buffer) != MESSAGE_ID_LENGTH + 3 || | |
346 | Ustrncmp(big_buffer, name, MESSAGE_ID_LENGTH + 2) != 0) | |
347 | goto SPOOL_FORMAT_ERROR; | |
348 | ||
349 | /* The next three lines in the header file are in a fixed format. The first | |
350 | contains the login, uid, and gid of the user who caused the file to be written. | |
ebb6e6d5 PH |
351 | There are known cases where a negative gid is used, so we allow for both |
352 | negative uids and gids. The second contains the mail address of the message's | |
353 | sender, enclosed in <>. The third contains the time the message was received, | |
354 | and the number of warning messages for delivery delays that have been sent. */ | |
059ec3d9 PH |
355 | |
356 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; | |
357 | ||
1e70f85b PH |
358 | p = big_buffer + Ustrlen(big_buffer); |
359 | while (p > big_buffer && isspace(p[-1])) p--; | |
360 | *p = 0; | |
361 | if (!isdigit(p[-1])) goto SPOOL_FORMAT_ERROR; | |
ebb6e6d5 | 362 | while (p > big_buffer && (isdigit(p[-1]) || '-' == p[-1])) p--; |
1e70f85b PH |
363 | gid = Uatoi(p); |
364 | if (p <= big_buffer || *(--p) != ' ') goto SPOOL_FORMAT_ERROR; | |
365 | *p = 0; | |
366 | if (!isdigit(p[-1])) goto SPOOL_FORMAT_ERROR; | |
ebb6e6d5 | 367 | while (p > big_buffer && (isdigit(p[-1]) || '-' == p[-1])) p--; |
1e70f85b PH |
368 | uid = Uatoi(p); |
369 | if (p <= big_buffer || *(--p) != ' ') goto SPOOL_FORMAT_ERROR; | |
370 | *p = 0; | |
8e669ac1 | 371 | |
1e70f85b | 372 | originator_login = string_copy(big_buffer); |
059ec3d9 PH |
373 | originator_uid = (uid_t)uid; |
374 | originator_gid = (gid_t)gid; | |
375 | ||
e91ad4a7 | 376 | /* envelope from */ |
059ec3d9 PH |
377 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; |
378 | n = Ustrlen(big_buffer); | |
379 | if (n < 3 || big_buffer[0] != '<' || big_buffer[n-2] != '>') | |
380 | goto SPOOL_FORMAT_ERROR; | |
381 | ||
382 | sender_address = store_get(n-2); | |
383 | Ustrncpy(sender_address, big_buffer+1, n-3); | |
384 | sender_address[n-3] = 0; | |
385 | ||
e91ad4a7 | 386 | /* time */ |
059ec3d9 PH |
387 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; |
388 | if (sscanf(CS big_buffer, "%d %d", &received_time, &warning_count) != 2) | |
389 | goto SPOOL_FORMAT_ERROR; | |
390 | ||
391 | message_age = time(NULL) - received_time; | |
392 | ||
393 | #ifndef COMPILE_UTILITY | |
394 | DEBUG(D_deliver) debug_printf("user=%s uid=%ld gid=%ld sender=%s\n", | |
395 | originator_login, (long int)originator_uid, (long int)originator_gid, | |
396 | sender_address); | |
397 | #endif /* COMPILE_UTILITY */ | |
398 | ||
08955dd3 PH |
399 | /* Now there may be a number of optional lines, each starting with "-". If you |
400 | add a new setting here, make sure you set the default above. | |
059ec3d9 | 401 | |
08955dd3 PH |
402 | Because there are now quite a number of different possibilities, we use a |
403 | switch on the first character to avoid too many failing tests. Thanks to Nico | |
404 | Erfurth for the patch that implemented this. I have made it even more efficient | |
405 | by not re-scanning the first two characters. | |
406 | ||
407 | To allow new versions of Exim that add additional flags to interwork with older | |
408 | versions that do not understand them, just ignore any lines starting with "-" | |
409 | that we don't recognize. Otherwise it wouldn't be possible to back off a new | |
410 | version that left new-style flags written on the spool. */ | |
411 | ||
412 | p = big_buffer + 2; | |
059ec3d9 PH |
413 | for (;;) |
414 | { | |
e91ad4a7 | 415 | int len; |
059ec3d9 PH |
416 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; |
417 | if (big_buffer[0] != '-') break; | |
e91ad4a7 JH |
418 | while ( (len = Ustrlen(big_buffer)) == big_buffer_size-1 |
419 | && big_buffer[len-1] != '\n' | |
420 | ) | |
421 | { /* buffer not big enough for line; certs make this possible */ | |
422 | uschar * buf; | |
423 | if (big_buffer_size >= BIG_BUFFER_SIZE*4) goto SPOOL_READ_ERROR; | |
424 | buf = store_get_perm(big_buffer_size *= 2); | |
425 | memcpy(buf, big_buffer, --len); | |
426 | big_buffer = buf; | |
427 | if (Ufgets(big_buffer+len, big_buffer_size-len, f) == NULL) | |
428 | goto SPOOL_READ_ERROR; | |
429 | } | |
430 | big_buffer[len-1] = 0; | |
47ca6d6c | 431 | |
08955dd3 | 432 | switch(big_buffer[1]) |
059ec3d9 | 433 | { |
08955dd3 PH |
434 | case 'a': |
435 | ||
436 | /* Nowadays we use "-aclc" and "-aclm" for the different types of ACL | |
437 | variable, because Exim allows any number of them, with arbitrary names. | |
438 | The line in the spool file is "-acl[cm] <name> <length>". The name excludes | |
439 | the c or m. */ | |
440 | ||
441 | if (Ustrncmp(p, "clc ", 4) == 0 || | |
442 | Ustrncmp(p, "clm ", 4) == 0) | |
443 | { | |
444 | uschar *name, *endptr; | |
445 | int count; | |
446 | tree_node *node; | |
447 | endptr = Ustrchr(big_buffer + 6, ' '); | |
448 | if (endptr == NULL) goto SPOOL_FORMAT_ERROR; | |
449 | name = string_sprintf("%c%.*s", big_buffer[4], endptr - big_buffer - 6, | |
450 | big_buffer + 6); | |
451 | if (sscanf(CS endptr, " %d", &count) != 1) goto SPOOL_FORMAT_ERROR; | |
452 | node = acl_var_create(name); | |
453 | node->data.ptr = store_get(count + 1); | |
454 | if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR; | |
455 | ((uschar*)node->data.ptr)[count] = 0; | |
456 | } | |
457 | ||
458 | else if (Ustrcmp(p, "llow_unqualified_recipient") == 0) | |
459 | allow_unqualified_recipient = TRUE; | |
460 | else if (Ustrcmp(p, "llow_unqualified_sender") == 0) | |
461 | allow_unqualified_sender = TRUE; | |
462 | ||
463 | else if (Ustrncmp(p, "uth_id", 6) == 0) | |
464 | authenticated_id = string_copy(big_buffer + 9); | |
465 | else if (Ustrncmp(p, "uth_sender", 10) == 0) | |
466 | authenticated_sender = string_copy(big_buffer + 13); | |
467 | else if (Ustrncmp(p, "ctive_hostname", 14) == 0) | |
468 | smtp_active_hostname = string_copy(big_buffer + 17); | |
469 | ||
470 | /* For long-term backward compatibility, we recognize "-acl", which was | |
471 | used before the number of ACL variables changed from 10 to 20. This was | |
472 | before the subsequent change to an arbitrary number of named variables. | |
473 | This code is retained so that upgrades from very old versions can still | |
474 | handle old-format spool files. The value given after "-acl" is a number | |
475 | that is 0-9 for connection variables, and 10-19 for message variables. */ | |
476 | ||
477 | else if (Ustrncmp(p, "cl ", 3) == 0) | |
478 | { | |
479 | int index, count; | |
8dce1a6f | 480 | uschar name[20]; /* Need plenty of space for %d format */ |
08955dd3 | 481 | tree_node *node; |
806c3df9 JH |
482 | if ( sscanf(CS big_buffer + 5, "%d %d", &index, &count) != 2 |
483 | || index >= 20 | |
484 | ) | |
08955dd3 | 485 | goto SPOOL_FORMAT_ERROR; |
8dce1a6f PH |
486 | if (index < 10) |
487 | (void) string_format(name, sizeof(name), "%c%d", 'c', index); | |
806c3df9 | 488 | else |
8dce1a6f | 489 | (void) string_format(name, sizeof(name), "%c%d", 'm', index - 10); |
08955dd3 PH |
490 | node = acl_var_create(name); |
491 | node->data.ptr = store_get(count + 1); | |
492 | if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR; | |
493 | ((uschar*)node->data.ptr)[count] = 0; | |
494 | } | |
495 | break; | |
496 | ||
497 | case 'b': | |
498 | if (Ustrncmp(p, "ody_linecount", 13) == 0) | |
499 | body_linecount = Uatoi(big_buffer + 15); | |
500 | else if (Ustrncmp(p, "ody_zerocount", 13) == 0) | |
501 | body_zerocount = Uatoi(big_buffer + 15); | |
e91ad4a7 | 502 | #ifdef EXPERIMENTAL_BRIGHTMAIL |
08955dd3 PH |
503 | else if (Ustrncmp(p, "mi_verdicts ", 12) == 0) |
504 | bmi_verdicts = string_copy(big_buffer + 14); | |
e91ad4a7 | 505 | #endif |
08955dd3 PH |
506 | break; |
507 | ||
508 | case 'd': | |
509 | if (Ustrcmp(p, "eliver_firsttime") == 0) | |
510 | deliver_firsttime = TRUE; | |
6c1c3d1d WB |
511 | /* Check if the dsn flags have been set in the header file */ |
512 | else if (Ustrncmp(p, "sn_ret", 6) == 0) | |
45500060 | 513 | dsn_ret= atoi(CS big_buffer + 8); |
6c1c3d1d | 514 | else if (Ustrncmp(p, "sn_envid", 8) == 0) |
6c1c3d1d | 515 | dsn_envid = string_copy(big_buffer + 11); |
08955dd3 PH |
516 | break; |
517 | ||
518 | case 'f': | |
519 | if (Ustrncmp(p, "rozen", 5) == 0) | |
520 | { | |
521 | deliver_freeze = TRUE; | |
dc8091e7 JH |
522 | if (sscanf(CS big_buffer+7, TIME_T_FMT, &deliver_frozen_at) != 1) |
523 | goto SPOOL_READ_ERROR; | |
08955dd3 PH |
524 | } |
525 | break; | |
526 | ||
527 | case 'h': | |
528 | if (Ustrcmp(p, "ost_lookup_deferred") == 0) | |
529 | host_lookup_deferred = TRUE; | |
530 | else if (Ustrcmp(p, "ost_lookup_failed") == 0) | |
531 | host_lookup_failed = TRUE; | |
532 | else if (Ustrncmp(p, "ost_auth", 8) == 0) | |
533 | sender_host_authenticated = string_copy(big_buffer + 11); | |
534 | else if (Ustrncmp(p, "ost_name", 8) == 0) | |
535 | sender_host_name = string_copy(big_buffer + 11); | |
536 | else if (Ustrncmp(p, "elo_name", 8) == 0) | |
537 | sender_helo_name = string_copy(big_buffer + 11); | |
538 | ||
539 | /* We now record the port number after the address, separated by a | |
540 | dot. For compatibility during upgrading, do nothing if there | |
541 | isn't a value (it gets left at zero). */ | |
542 | ||
543 | else if (Ustrncmp(p, "ost_address", 11) == 0) | |
544 | { | |
545 | sender_host_port = host_address_extract_port(big_buffer + 14); | |
546 | sender_host_address = string_copy(big_buffer + 14); | |
547 | } | |
548 | break; | |
549 | ||
550 | case 'i': | |
551 | if (Ustrncmp(p, "nterface_address", 16) == 0) | |
552 | { | |
553 | interface_port = host_address_extract_port(big_buffer + 19); | |
554 | interface_address = string_copy(big_buffer + 19); | |
555 | } | |
556 | else if (Ustrncmp(p, "dent", 4) == 0) | |
557 | sender_ident = string_copy(big_buffer + 7); | |
558 | break; | |
559 | ||
560 | case 'l': | |
561 | if (Ustrcmp(p, "ocal") == 0) sender_local = TRUE; | |
562 | else if (Ustrcmp(big_buffer, "-localerror") == 0) | |
563 | local_error_message = TRUE; | |
564 | else if (Ustrncmp(p, "ocal_scan ", 10) == 0) | |
565 | local_scan_data = string_copy(big_buffer + 12); | |
566 | break; | |
567 | ||
568 | case 'm': | |
569 | if (Ustrcmp(p, "anual_thaw") == 0) deliver_manual_thaw = TRUE; | |
d677b2f2 PH |
570 | else if (Ustrncmp(p, "ax_received_linelength", 22) == 0) |
571 | max_received_linelength = Uatoi(big_buffer + 24); | |
08955dd3 PH |
572 | break; |
573 | ||
574 | case 'N': | |
575 | if (*p == 0) dont_deliver = TRUE; /* -N */ | |
576 | break; | |
577 | ||
578 | case 'r': | |
579 | if (Ustrncmp(p, "eceived_protocol", 16) == 0) | |
580 | received_protocol = string_copy(big_buffer + 19); | |
581 | break; | |
582 | ||
583 | case 's': | |
584 | if (Ustrncmp(p, "ender_set_untrusted", 19) == 0) | |
585 | sender_set_untrusted = TRUE; | |
e91ad4a7 | 586 | #ifdef WITH_CONTENT_SCAN |
3481c572 JH |
587 | else if (Ustrncmp(p, "pam_bar ", 8) == 0) |
588 | spam_bar = string_copy(big_buffer + 10); | |
589 | else if (Ustrncmp(p, "pam_score ", 10) == 0) | |
590 | spam_score = string_copy(big_buffer + 12); | |
08955dd3 PH |
591 | else if (Ustrncmp(p, "pam_score_int ", 14) == 0) |
592 | spam_score_int = string_copy(big_buffer + 16); | |
e91ad4a7 | 593 | #endif |
8c5d388a | 594 | #if defined(SUPPORT_I18N) && !defined(COMPILE_UTILITY) |
7ade712c JH |
595 | else if (Ustrncmp(p, "mtputf8", 7) == 0) |
596 | message_smtputf8 = TRUE; | |
597 | #endif | |
08955dd3 PH |
598 | break; |
599 | ||
e91ad4a7 | 600 | #ifdef SUPPORT_TLS |
08955dd3 PH |
601 | case 't': |
602 | if (Ustrncmp(p, "ls_certificate_verified", 23) == 0) | |
817d9f57 | 603 | tls_in.certificate_verified = TRUE; |
08955dd3 | 604 | else if (Ustrncmp(p, "ls_cipher", 9) == 0) |
817d9f57 | 605 | tls_in.cipher = string_copy(big_buffer + 12); |
e91ad4a7 | 606 | # ifndef COMPILE_UTILITY /* tls support fns not built in */ |
9d1c15ef JH |
607 | else if (Ustrncmp(p, "ls_ourcert", 10) == 0) |
608 | (void) tls_import_cert(big_buffer + 13, &tls_in.ourcert); | |
609 | else if (Ustrncmp(p, "ls_peercert", 11) == 0) | |
610 | (void) tls_import_cert(big_buffer + 14, &tls_in.peercert); | |
e91ad4a7 | 611 | # endif |
08955dd3 | 612 | else if (Ustrncmp(p, "ls_peerdn", 9) == 0) |
817d9f57 | 613 | tls_in.peerdn = string_unprinting(string_copy(big_buffer + 12)); |
7be682ca | 614 | else if (Ustrncmp(p, "ls_sni", 6) == 0) |
817d9f57 | 615 | tls_in.sni = string_unprinting(string_copy(big_buffer + 9)); |
44662487 JH |
616 | else if (Ustrncmp(p, "ls_ocsp", 7) == 0) |
617 | tls_in.ocsp = big_buffer[10] - '0'; | |
08955dd3 | 618 | break; |
e91ad4a7 | 619 | #endif |
08955dd3 | 620 | |
8c5d388a | 621 | #if defined(SUPPORT_I18N) && !defined(COMPILE_UTILITY) |
3c8b3577 JH |
622 | case 'u': |
623 | if (Ustrncmp(p, "tf8_downcvt", 11) == 0) | |
624 | message_utf8_downconvert = 1; | |
0ec7e948 | 625 | else if (Ustrncmp(p, "tf8_optdowncvt", 15) == 0) |
3c8b3577 JH |
626 | message_utf8_downconvert = -1; |
627 | break; | |
628 | #endif | |
629 | ||
08955dd3 PH |
630 | default: /* Present because some compilers complain if all */ |
631 | break; /* possibilities are not covered. */ | |
059ec3d9 | 632 | } |
059ec3d9 PH |
633 | } |
634 | ||
635 | /* Build sender_fullhost if required */ | |
636 | ||
637 | #ifndef COMPILE_UTILITY | |
638 | host_build_sender_fullhost(); | |
639 | #endif /* COMPILE_UTILITY */ | |
640 | ||
641 | #ifndef COMPILE_UTILITY | |
642 | DEBUG(D_deliver) | |
643 | debug_printf("sender_local=%d ident=%s\n", sender_local, | |
644 | (sender_ident == NULL)? US"unset" : sender_ident); | |
645 | #endif /* COMPILE_UTILITY */ | |
646 | ||
647 | /* We now have the tree of addresses NOT to deliver to, or a line | |
648 | containing "XX", indicating no tree. */ | |
649 | ||
650 | if (Ustrncmp(big_buffer, "XX\n", 3) != 0 && | |
651 | !read_nonrecipients_tree(&tree_nonrecipients, f, big_buffer, big_buffer_size)) | |
652 | goto SPOOL_FORMAT_ERROR; | |
653 | ||
654 | #ifndef COMPILE_UTILITY | |
655 | DEBUG(D_deliver) | |
656 | { | |
657 | debug_printf("Non-recipients:\n"); | |
658 | debug_print_tree(tree_nonrecipients); | |
659 | } | |
660 | #endif /* COMPILE_UTILITY */ | |
661 | ||
662 | /* After reading the tree, the next line has not yet been read into the | |
663 | buffer. It contains the count of recipients which follow on separate lines. */ | |
664 | ||
665 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; | |
666 | if (sscanf(CS big_buffer, "%d", &rcount) != 1) goto SPOOL_FORMAT_ERROR; | |
667 | ||
668 | #ifndef COMPILE_UTILITY | |
669 | DEBUG(D_deliver) debug_printf("recipients_count=%d\n", rcount); | |
670 | #endif /* COMPILE_UTILITY */ | |
671 | ||
672 | recipients_list_max = rcount; | |
673 | recipients_list = store_get(rcount * sizeof(recipient_item)); | |
674 | ||
675 | for (recipients_count = 0; recipients_count < rcount; recipients_count++) | |
676 | { | |
677 | int nn; | |
678 | int pno = -1; | |
6c1c3d1d WB |
679 | int dsn_flags = 0; |
680 | uschar *orcpt = NULL; | |
059ec3d9 PH |
681 | uschar *errors_to = NULL; |
682 | uschar *p; | |
683 | ||
684 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; | |
685 | nn = Ustrlen(big_buffer); | |
686 | if (nn < 2) goto SPOOL_FORMAT_ERROR; | |
687 | ||
688 | /* Remove the newline; this terminates the address if there is no additional | |
689 | data on the line. */ | |
690 | ||
691 | p = big_buffer + nn - 1; | |
692 | *p-- = 0; | |
693 | ||
694 | /* Look back from the end of the line for digits and special terminators. | |
695 | Since an address must end with a domain, we can tell that extra data is | |
696 | present by the presence of the terminator, which is always some character | |
697 | that cannot exist in a domain. (If I'd thought of the need for additional | |
698 | data early on, I'd have put it at the start, with the address at the end. As | |
699 | it is, we have to operate backwards. Addresses are permitted to contain | |
700 | spaces, you see.) | |
701 | ||
702 | This code has to cope with various versions of this data that have evolved | |
703 | over time. In all cases, the line might just contain an address, with no | |
704 | additional data. Otherwise, the possibilities are as follows: | |
705 | ||
706 | Exim 3 type: <address><space><digits>,<digits>,<digits> | |
707 | ||
708 | The second set of digits is the parent number for one_time addresses. The | |
709 | other values were remnants of earlier experiments that were abandoned. | |
710 | ||
711 | Exim 4 first type: <address><space><digits> | |
712 | ||
713 | The digits are the parent number for one_time addresses. | |
714 | ||
715 | Exim 4 new type: <address><space><data>#<type bits> | |
716 | ||
717 | The type bits indicate what the contents of the data are. | |
718 | ||
719 | Bit 01 indicates that, reading from right to left, the data | |
720 | ends with <errors_to address><space><len>,<pno> where pno is | |
721 | the parent number for one_time addresses, and len is the length | |
722 | of the errors_to address (zero meaning none). | |
6c1c3d1d WB |
723 | |
724 | Bit 02 indicates that, again reading from right to left, the data continues | |
725 | with orcpt len(orcpt),dsn_flags | |
059ec3d9 PH |
726 | */ |
727 | ||
728 | while (isdigit(*p)) p--; | |
729 | ||
730 | /* Handle Exim 3 spool files */ | |
731 | ||
732 | if (*p == ',') | |
733 | { | |
734 | int dummy; | |
735 | while (isdigit(*(--p)) || *p == ','); | |
736 | if (*p == ' ') | |
737 | { | |
738 | *p++ = 0; | |
ff790e47 | 739 | (void)sscanf(CS p, "%d,%d", &dummy, &pno); |
059ec3d9 PH |
740 | } |
741 | } | |
742 | ||
743 | /* Handle early Exim 4 spool files */ | |
744 | ||
745 | else if (*p == ' ') | |
746 | { | |
747 | *p++ = 0; | |
ff790e47 | 748 | (void)sscanf(CS p, "%d", &pno); |
059ec3d9 PH |
749 | } |
750 | ||
751 | /* Handle current format Exim 4 spool files */ | |
752 | ||
753 | else if (*p == '#') | |
754 | { | |
755 | int flags; | |
6c1c3d1d | 756 | |
50dc7409 | 757 | #if !defined (COMPILE_UTILITY) |
e91ad4a7 JH |
758 | DEBUG(D_deliver) debug_printf("**** SPOOL_IN - Exim 4 standard format spoolfile\n"); |
759 | #endif | |
6c1c3d1d | 760 | |
ff790e47 | 761 | (void)sscanf(CS p+1, "%d", &flags); |
059ec3d9 PH |
762 | |
763 | if ((flags & 0x01) != 0) /* one_time data exists */ | |
764 | { | |
765 | int len; | |
766 | while (isdigit(*(--p)) || *p == ',' || *p == '-'); | |
ff790e47 | 767 | (void)sscanf(CS p+1, "%d,%d", &len, &pno); |
059ec3d9 PH |
768 | *p = 0; |
769 | if (len > 0) | |
770 | { | |
771 | p -= len; | |
772 | errors_to = string_copy(p); | |
94431adb | 773 | } |
6c1c3d1d WB |
774 | } |
775 | ||
776 | *(--p) = 0; /* Terminate address */ | |
6c1c3d1d WB |
777 | if ((flags & 0x02) != 0) /* one_time data exists */ |
778 | { | |
779 | int len; | |
780 | while (isdigit(*(--p)) || *p == ',' || *p == '-'); | |
781 | (void)sscanf(CS p+1, "%d,%d", &len, &dsn_flags); | |
782 | *p = 0; | |
783 | if (len > 0) | |
784 | { | |
785 | p -= len; | |
786 | orcpt = string_copy(p); | |
94431adb | 787 | } |
059ec3d9 PH |
788 | } |
789 | ||
790 | *(--p) = 0; /* Terminate address */ | |
6c1c3d1d | 791 | } |
50dc7409 | 792 | #if !defined(COMPILE_UTILITY) |
6c1c3d1d | 793 | else |
e91ad4a7 | 794 | { DEBUG(D_deliver) debug_printf("**** SPOOL_IN - No additional fields\n"); } |
6c1c3d1d WB |
795 | |
796 | if ((orcpt != NULL) || (dsn_flags != 0)) | |
797 | { | |
798 | DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| orcpt: |%s| dsn_flags: %d\n", | |
799 | big_buffer, orcpt, dsn_flags); | |
800 | } | |
801 | if (errors_to != NULL) | |
802 | { | |
803 | DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| errorsto: |%s|\n", | |
804 | big_buffer, errors_to); | |
059ec3d9 | 805 | } |
50dc7409 | 806 | #endif |
059ec3d9 PH |
807 | |
808 | recipients_list[recipients_count].address = string_copy(big_buffer); | |
809 | recipients_list[recipients_count].pno = pno; | |
810 | recipients_list[recipients_count].errors_to = errors_to; | |
6c1c3d1d WB |
811 | recipients_list[recipients_count].orcpt = orcpt; |
812 | recipients_list[recipients_count].dsn_flags = dsn_flags; | |
059ec3d9 PH |
813 | } |
814 | ||
815 | /* The remainder of the spool header file contains the headers for the message, | |
816 | separated off from the previous data by a blank line. Each header is preceded | |
817 | by a count of its length and either a certain letter (for various identified | |
818 | headers), space (for a miscellaneous live header) or an asterisk (for a header | |
819 | that has been rewritten). Count the Received: headers. We read the headers | |
820 | always, in order to check on the format of the file, but only create a header | |
821 | list if requested to do so. */ | |
822 | ||
823 | inheader = TRUE; | |
824 | if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR; | |
825 | if (big_buffer[0] != '\n') goto SPOOL_FORMAT_ERROR; | |
826 | ||
827 | while ((n = fgetc(f)) != EOF) | |
828 | { | |
829 | header_line *h; | |
830 | uschar flag[4]; | |
831 | int i; | |
832 | ||
833 | if (!isdigit(n)) goto SPOOL_FORMAT_ERROR; | |
1ac6b2e7 JH |
834 | if(ungetc(n, f) == EOF || fscanf(f, "%d%c ", &n, flag) == EOF) |
835 | goto SPOOL_READ_ERROR; | |
059ec3d9 PH |
836 | if (flag[0] != '*') message_size += n; /* Omit non-transmitted headers */ |
837 | ||
838 | if (read_headers) | |
839 | { | |
840 | h = store_get(sizeof(header_line)); | |
841 | h->next = NULL; | |
842 | h->type = flag[0]; | |
843 | h->slen = n; | |
844 | h->text = store_get(n+1); | |
845 | ||
846 | if (h->type == htype_received) received_count++; | |
847 | ||
848 | if (header_list == NULL) header_list = h; | |
849 | else header_last->next = h; | |
850 | header_last = h; | |
851 | ||
852 | for (i = 0; i < n; i++) | |
853 | { | |
854 | int c = fgetc(f); | |
855 | if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR; | |
856 | if (c == '\n' && h->type != htype_old) message_linecount++; | |
857 | h->text[i] = c; | |
858 | } | |
859 | h->text[i] = 0; | |
860 | } | |
861 | ||
862 | /* Not requiring header data, just skip through the bytes */ | |
863 | ||
864 | else for (i = 0; i < n; i++) | |
865 | { | |
866 | int c = fgetc(f); | |
867 | if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR; | |
868 | } | |
869 | } | |
870 | ||
871 | /* We have successfully read the data in the header file. Update the message | |
872 | line count by adding the body linecount to the header linecount. Close the file | |
873 | and give a positive response. */ | |
874 | ||
875 | #ifndef COMPILE_UTILITY | |
876 | DEBUG(D_deliver) debug_printf("body_linecount=%d message_linecount=%d\n", | |
877 | body_linecount, message_linecount); | |
878 | #endif /* COMPILE_UTILITY */ | |
879 | ||
880 | message_linecount += body_linecount; | |
881 | ||
882 | fclose(f); | |
883 | return spool_read_OK; | |
884 | ||
885 | ||
886 | /* There was an error reading the spool or there was missing data, | |
887 | or there was a format error. A "read error" with no errno means an | |
888 | unexpected EOF, which we treat as a format error. */ | |
889 | ||
890 | SPOOL_READ_ERROR: | |
891 | if (errno != 0) | |
892 | { | |
893 | n = errno; | |
894 | ||
e91ad4a7 | 895 | #ifndef COMPILE_UTILITY |
059ec3d9 | 896 | DEBUG(D_any) debug_printf("Error while reading spool file %s\n", name); |
e91ad4a7 | 897 | #endif /* COMPILE_UTILITY */ |
059ec3d9 PH |
898 | |
899 | fclose(f); | |
900 | errno = n; | |
901 | return inheader? spool_read_hdrerror : spool_read_enverror; | |
902 | } | |
903 | ||
904 | SPOOL_FORMAT_ERROR: | |
905 | ||
906 | #ifndef COMPILE_UTILITY | |
907 | DEBUG(D_any) debug_printf("Format error in spool file %s\n", name); | |
908 | #endif /* COMPILE_UTILITY */ | |
909 | ||
910 | fclose(f); | |
911 | errno = ERRNO_SPOOLFORMAT; | |
912 | return inheader? spool_read_hdrerror : spool_read_enverror; | |
913 | } | |
914 | ||
9d1c15ef JH |
915 | /* vi: aw ai sw=2 |
916 | */ | |
059ec3d9 | 917 | /* End of spool_in.c */ |