1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2012 */
6 /* See the file NOTICE for conditions of use and distribution. */
8 /* Functions for reading spool files. When compiling for a utility (eximon),
9 not all are needed, and some functionality can be cut out. */
16 #ifndef COMPILE_UTILITY
17 /*************************************************
18 * Open and lock data file *
19 *************************************************/
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
28 Argument: the id of the message
29 Returns: TRUE if file successfully opened and locked
31 Side effect: deliver_datafile is set to the fd of the open file.
35 spool_open_datafile(uschar *id)
40 uschar spoolname[256];
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
49 for (i = 0; i < 2; i++)
52 message_subdir[0] = (split_spool_directory == (i == 0))? id[5] : 0;
53 sprintf(CS spoolname, "%s/input/%s/%s-D", spool_directory, message_subdir, id);
54 deliver_datafile = Uopen(spoolname, O_RDWR | O_APPEND, 0);
55 if (deliver_datafile >= 0) break;
61 log_write(0, LOG_MAIN, "Spool file %s-D not found", id);
63 else log_write(0, LOG_MAIN, "Spool error for %s: %s", spoolname,
69 /* File is open and message_subdir is set. Set the close-on-exec flag, and lock
70 the file. We lock only the first line of the file (containing the message ID)
71 because this apparently is needed for running Exim under Cygwin. If the entire
72 file is locked in one process, a sub-process cannot access it, even when passed
73 an open file descriptor (at least, I think that's the Cygwin story). On real
74 Unix systems it doesn't make any difference as long as Exim is consistent in
77 (void)fcntl(deliver_datafile, F_SETFD, fcntl(deliver_datafile, F_GETFD) |
80 lock_data.l_type = F_WRLCK;
81 lock_data.l_whence = SEEK_SET;
82 lock_data.l_start = 0;
83 lock_data.l_len = SPOOL_DATA_START_OFFSET;
85 if (fcntl(deliver_datafile, F_SETLK, &lock_data) < 0)
87 log_write(L_skip_delivery,
89 "Spool file is locked (another process is handling this message)");
90 (void)close(deliver_datafile);
91 deliver_datafile = -1;
96 /* Get the size of the data; don't include the leading filename line
97 in the count, but add one for the newline before the data. */
99 if (fstat(deliver_datafile, &statbuf) == 0)
101 message_body_size = statbuf.st_size - SPOOL_DATA_START_OFFSET;
102 message_size = message_body_size + 1;
107 #endif /* COMPILE_UTILITY */
111 /*************************************************
112 * Read non-recipients tree from spool file *
113 *************************************************/
115 /* The tree of non-recipients is written to the spool file in a form that
116 makes it easy to read back into a tree. The format is as follows:
118 . Each node is preceded by two letter(Y/N) indicating whether it has left
119 or right children. There's one space after the two flags, before the name.
121 . The left subtree (if any) then follows, then the right subtree (if any).
123 This function is entered with the next input line in the buffer. Note we must
124 save the right flag before recursing with the same buffer.
126 Once the tree is read, we re-construct the balance fields by scanning the tree.
127 I forgot to write them out originally, and the compatible fix is to do it this
128 way. This initial local recursing function does the necessary.
133 Returns: maximum depth below the node, including the node itself
137 count_below(tree_node *node)
140 if (node == NULL) return 0;
141 nleft = count_below(node->left);
142 nright = count_below(node->right);
143 node->balance = (nleft > nright)? 1 : ((nright > nleft)? 2 : 0);
144 return 1 + ((nleft > nright)? nleft : nright);
147 /* This is the real function...
150 connect pointer to the root of the tree
151 f FILE to read data from
152 buffer contains next input line; further lines read into it
153 buffer_size size of the buffer
155 Returns: FALSE on format error
159 read_nonrecipients_tree(tree_node **connect, FILE *f, uschar *buffer,
163 int n = Ustrlen(buffer);
164 BOOL right = buffer[1] == 'Y';
166 if (n < 5) return FALSE; /* malformed line */
167 buffer[n-1] = 0; /* Remove \n */
168 node = store_get(sizeof(tree_node) + n - 3);
170 Ustrcpy(node->name, buffer + 3);
171 node->data.ptr = NULL;
173 if (buffer[0] == 'Y')
175 if (Ufgets(buffer, buffer_size, f) == NULL ||
176 !read_nonrecipients_tree(&node->left, f, buffer, buffer_size))
179 else node->left = NULL;
183 if (Ufgets(buffer, buffer_size, f) == NULL ||
184 !read_nonrecipients_tree(&node->right, f, buffer, buffer_size))
187 else node->right = NULL;
189 (void) count_below(*connect);
196 /*************************************************
197 * Read spool header file *
198 *************************************************/
200 /* This function reads a spool header file and places the data into the
201 appropriate global variables. The header portion is always read, but header
202 structures are built only if read_headers is set true. It isn't, for example,
203 while generating -bp output.
205 It may be possible for blocks of nulls (binary zeroes) to get written on the
206 end of a file if there is a system crash during writing. It was observed on an
207 earlier version of Exim that omitted to fsync() the files - this is thought to
208 have been the cause of that incident, but in any case, this code must be robust
209 against such an event, and if such a file is encountered, it must be treated as
213 name name of the header file, including the -H
214 read_headers TRUE if in-store header structures are to be built
215 subdir_set TRUE is message_subdir is already set
217 Returns: spool_read_OK success
218 spool_read_notopen open failed
219 spool_read_enverror error in the envelope portion
220 spool_read_hdrdrror error in the header portion
224 spool_read_header(uschar *name, BOOL read_headers, BOOL subdir_set)
230 BOOL inheader = FALSE;
233 /* Reset all the global variables to their default values. However, there is
234 one exception. DO NOT change the default value of dont_deliver, because it may
235 be forced by an external setting. */
237 acl_var_c = acl_var_m = NULL;
238 authenticated_id = NULL;
239 authenticated_sender = NULL;
240 allow_unqualified_recipient = FALSE;
241 allow_unqualified_sender = FALSE;
244 deliver_firsttime = FALSE;
245 deliver_freeze = FALSE;
246 deliver_frozen_at = 0;
247 deliver_manual_thaw = FALSE;
248 /* dont_deliver must NOT be reset */
249 header_list = header_last = NULL;
250 host_lookup_deferred = FALSE;
251 host_lookup_failed = FALSE;
252 interface_address = NULL;
254 local_error_message = FALSE;
255 local_scan_data = NULL;
256 max_received_linelength = 0;
257 message_linecount = 0;
258 received_protocol = NULL;
260 recipients_list = NULL;
261 sender_address = NULL;
262 sender_fullhost = NULL;
263 sender_helo_name = NULL;
264 sender_host_address = NULL;
265 sender_host_name = NULL;
266 sender_host_port = 0;
267 sender_host_authenticated = NULL;
269 sender_local = FALSE;
270 sender_set_untrusted = FALSE;
271 smtp_active_hostname = primary_hostname;
272 tree_nonrecipients = NULL;
274 #ifdef EXPERIMENTAL_BRIGHTMAIL
281 dkim_disable_verify = FALSE;
282 dkim_collect_input = FALSE;
286 tls_in.certificate_verified = FALSE;
287 # ifdef EXPERIMENTAL_DANE
288 tls_in.dane_verified = FALSE;
290 tls_in.cipher = NULL;
291 tls_in.ourcert = NULL;
292 tls_in.peercert = NULL;
293 tls_in.peerdn = NULL;
295 tls_in.ocsp = OCSP_NOT_REQ;
298 #ifdef WITH_CONTENT_SCAN
299 spam_score_int = NULL;
302 #if defined(EXPERIMENTAL_INTERNATIONAL) && !defined(COMPILE_UTILITY)
303 message_smtputf8 = FALSE;
304 message_utf8_downconvert = 0;
310 /* Generate the full name and open the file. If message_subdir is already
311 set, just look in the given directory. Otherwise, look in both the split
312 and unsplit directories, as for the data file above. */
314 for (n = 0; n < 2; n++)
317 message_subdir[0] = (split_spool_directory == (n == 0))? name[5] : 0;
318 sprintf(CS big_buffer, "%s/input/%s/%s", spool_directory, message_subdir,
320 f = Ufopen(big_buffer, "rb");
321 if (f != NULL) break;
322 if (n != 0 || subdir_set || errno != ENOENT) return spool_read_notopen;
327 #ifndef COMPILE_UTILITY
328 DEBUG(D_deliver) debug_printf("reading spool file %s\n", name);
329 #endif /* COMPILE_UTILITY */
331 /* The first line of a spool file contains the message id followed by -H (i.e.
332 the file name), in order to make the file self-identifying. */
334 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
335 if (Ustrlen(big_buffer) != MESSAGE_ID_LENGTH + 3 ||
336 Ustrncmp(big_buffer, name, MESSAGE_ID_LENGTH + 2) != 0)
337 goto SPOOL_FORMAT_ERROR;
339 /* The next three lines in the header file are in a fixed format. The first
340 contains the login, uid, and gid of the user who caused the file to be written.
341 There are known cases where a negative gid is used, so we allow for both
342 negative uids and gids. The second contains the mail address of the message's
343 sender, enclosed in <>. The third contains the time the message was received,
344 and the number of warning messages for delivery delays that have been sent. */
346 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
348 p = big_buffer + Ustrlen(big_buffer);
349 while (p > big_buffer && isspace(p[-1])) p--;
351 if (!isdigit(p[-1])) goto SPOOL_FORMAT_ERROR;
352 while (p > big_buffer && (isdigit(p[-1]) || '-' == p[-1])) p--;
354 if (p <= big_buffer || *(--p) != ' ') goto SPOOL_FORMAT_ERROR;
356 if (!isdigit(p[-1])) goto SPOOL_FORMAT_ERROR;
357 while (p > big_buffer && (isdigit(p[-1]) || '-' == p[-1])) p--;
359 if (p <= big_buffer || *(--p) != ' ') goto SPOOL_FORMAT_ERROR;
362 originator_login = string_copy(big_buffer);
363 originator_uid = (uid_t)uid;
364 originator_gid = (gid_t)gid;
367 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
368 n = Ustrlen(big_buffer);
369 if (n < 3 || big_buffer[0] != '<' || big_buffer[n-2] != '>')
370 goto SPOOL_FORMAT_ERROR;
372 sender_address = store_get(n-2);
373 Ustrncpy(sender_address, big_buffer+1, n-3);
374 sender_address[n-3] = 0;
377 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
378 if (sscanf(CS big_buffer, "%d %d", &received_time, &warning_count) != 2)
379 goto SPOOL_FORMAT_ERROR;
381 message_age = time(NULL) - received_time;
383 #ifndef COMPILE_UTILITY
384 DEBUG(D_deliver) debug_printf("user=%s uid=%ld gid=%ld sender=%s\n",
385 originator_login, (long int)originator_uid, (long int)originator_gid,
387 #endif /* COMPILE_UTILITY */
389 /* Now there may be a number of optional lines, each starting with "-". If you
390 add a new setting here, make sure you set the default above.
392 Because there are now quite a number of different possibilities, we use a
393 switch on the first character to avoid too many failing tests. Thanks to Nico
394 Erfurth for the patch that implemented this. I have made it even more efficient
395 by not re-scanning the first two characters.
397 To allow new versions of Exim that add additional flags to interwork with older
398 versions that do not understand them, just ignore any lines starting with "-"
399 that we don't recognize. Otherwise it wouldn't be possible to back off a new
400 version that left new-style flags written on the spool. */
406 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
407 if (big_buffer[0] != '-') break;
408 while ( (len = Ustrlen(big_buffer)) == big_buffer_size-1
409 && big_buffer[len-1] != '\n'
411 { /* buffer not big enough for line; certs make this possible */
413 if (big_buffer_size >= BIG_BUFFER_SIZE*4) goto SPOOL_READ_ERROR;
414 buf = store_get_perm(big_buffer_size *= 2);
415 memcpy(buf, big_buffer, --len);
417 if (Ufgets(big_buffer+len, big_buffer_size-len, f) == NULL)
418 goto SPOOL_READ_ERROR;
420 big_buffer[len-1] = 0;
422 switch(big_buffer[1])
426 /* Nowadays we use "-aclc" and "-aclm" for the different types of ACL
427 variable, because Exim allows any number of them, with arbitrary names.
428 The line in the spool file is "-acl[cm] <name> <length>". The name excludes
431 if (Ustrncmp(p, "clc ", 4) == 0 ||
432 Ustrncmp(p, "clm ", 4) == 0)
434 uschar *name, *endptr;
437 endptr = Ustrchr(big_buffer + 6, ' ');
438 if (endptr == NULL) goto SPOOL_FORMAT_ERROR;
439 name = string_sprintf("%c%.*s", big_buffer[4], endptr - big_buffer - 6,
441 if (sscanf(CS endptr, " %d", &count) != 1) goto SPOOL_FORMAT_ERROR;
442 node = acl_var_create(name);
443 node->data.ptr = store_get(count + 1);
444 if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR;
445 ((uschar*)node->data.ptr)[count] = 0;
448 else if (Ustrcmp(p, "llow_unqualified_recipient") == 0)
449 allow_unqualified_recipient = TRUE;
450 else if (Ustrcmp(p, "llow_unqualified_sender") == 0)
451 allow_unqualified_sender = TRUE;
453 else if (Ustrncmp(p, "uth_id", 6) == 0)
454 authenticated_id = string_copy(big_buffer + 9);
455 else if (Ustrncmp(p, "uth_sender", 10) == 0)
456 authenticated_sender = string_copy(big_buffer + 13);
457 else if (Ustrncmp(p, "ctive_hostname", 14) == 0)
458 smtp_active_hostname = string_copy(big_buffer + 17);
460 /* For long-term backward compatibility, we recognize "-acl", which was
461 used before the number of ACL variables changed from 10 to 20. This was
462 before the subsequent change to an arbitrary number of named variables.
463 This code is retained so that upgrades from very old versions can still
464 handle old-format spool files. The value given after "-acl" is a number
465 that is 0-9 for connection variables, and 10-19 for message variables. */
467 else if (Ustrncmp(p, "cl ", 3) == 0)
470 uschar name[20]; /* Need plenty of space for %d format */
472 if (sscanf(CS big_buffer + 5, "%d %d", &index, &count) != 2)
473 goto SPOOL_FORMAT_ERROR;
475 (void) string_format(name, sizeof(name), "%c%d", 'c', index);
476 else if (index < 20) /* ignore out-of-range index */
477 (void) string_format(name, sizeof(name), "%c%d", 'm', index - 10);
478 node = acl_var_create(name);
479 node->data.ptr = store_get(count + 1);
480 if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR;
481 ((uschar*)node->data.ptr)[count] = 0;
486 if (Ustrncmp(p, "ody_linecount", 13) == 0)
487 body_linecount = Uatoi(big_buffer + 15);
488 else if (Ustrncmp(p, "ody_zerocount", 13) == 0)
489 body_zerocount = Uatoi(big_buffer + 15);
490 #ifdef EXPERIMENTAL_BRIGHTMAIL
491 else if (Ustrncmp(p, "mi_verdicts ", 12) == 0)
492 bmi_verdicts = string_copy(big_buffer + 14);
497 if (Ustrcmp(p, "eliver_firsttime") == 0)
498 deliver_firsttime = TRUE;
499 /* Check if the dsn flags have been set in the header file */
500 else if (Ustrncmp(p, "sn_ret", 6) == 0)
501 dsn_ret= atoi(CS big_buffer + 8);
502 else if (Ustrncmp(p, "sn_envid", 8) == 0)
503 dsn_envid = string_copy(big_buffer + 11);
507 if (Ustrncmp(p, "rozen", 5) == 0)
509 deliver_freeze = TRUE;
510 sscanf(CS big_buffer+7, TIME_T_FMT, &deliver_frozen_at);
515 if (Ustrcmp(p, "ost_lookup_deferred") == 0)
516 host_lookup_deferred = TRUE;
517 else if (Ustrcmp(p, "ost_lookup_failed") == 0)
518 host_lookup_failed = TRUE;
519 else if (Ustrncmp(p, "ost_auth", 8) == 0)
520 sender_host_authenticated = string_copy(big_buffer + 11);
521 else if (Ustrncmp(p, "ost_name", 8) == 0)
522 sender_host_name = string_copy(big_buffer + 11);
523 else if (Ustrncmp(p, "elo_name", 8) == 0)
524 sender_helo_name = string_copy(big_buffer + 11);
526 /* We now record the port number after the address, separated by a
527 dot. For compatibility during upgrading, do nothing if there
528 isn't a value (it gets left at zero). */
530 else if (Ustrncmp(p, "ost_address", 11) == 0)
532 sender_host_port = host_address_extract_port(big_buffer + 14);
533 sender_host_address = string_copy(big_buffer + 14);
538 if (Ustrncmp(p, "nterface_address", 16) == 0)
540 interface_port = host_address_extract_port(big_buffer + 19);
541 interface_address = string_copy(big_buffer + 19);
543 else if (Ustrncmp(p, "dent", 4) == 0)
544 sender_ident = string_copy(big_buffer + 7);
548 if (Ustrcmp(p, "ocal") == 0) sender_local = TRUE;
549 else if (Ustrcmp(big_buffer, "-localerror") == 0)
550 local_error_message = TRUE;
551 else if (Ustrncmp(p, "ocal_scan ", 10) == 0)
552 local_scan_data = string_copy(big_buffer + 12);
556 if (Ustrcmp(p, "anual_thaw") == 0) deliver_manual_thaw = TRUE;
557 else if (Ustrncmp(p, "ax_received_linelength", 22) == 0)
558 max_received_linelength = Uatoi(big_buffer + 24);
562 if (*p == 0) dont_deliver = TRUE; /* -N */
566 if (Ustrncmp(p, "eceived_protocol", 16) == 0)
567 received_protocol = string_copy(big_buffer + 19);
571 if (Ustrncmp(p, "ender_set_untrusted", 19) == 0)
572 sender_set_untrusted = TRUE;
573 #ifdef WITH_CONTENT_SCAN
574 else if (Ustrncmp(p, "pam_score_int ", 14) == 0)
575 spam_score_int = string_copy(big_buffer + 16);
577 #if defined(EXPERIMENTAL_INTERNATIONAL) && !defined(COMPILE_UTILITY)
578 else if (Ustrncmp(p, "mtputf8", 7) == 0)
579 message_smtputf8 = TRUE;
585 if (Ustrncmp(p, "ls_certificate_verified", 23) == 0)
586 tls_in.certificate_verified = TRUE;
587 else if (Ustrncmp(p, "ls_cipher", 9) == 0)
588 tls_in.cipher = string_copy(big_buffer + 12);
589 # ifndef COMPILE_UTILITY /* tls support fns not built in */
590 else if (Ustrncmp(p, "ls_ourcert", 10) == 0)
591 (void) tls_import_cert(big_buffer + 13, &tls_in.ourcert);
592 else if (Ustrncmp(p, "ls_peercert", 11) == 0)
593 (void) tls_import_cert(big_buffer + 14, &tls_in.peercert);
595 else if (Ustrncmp(p, "ls_peerdn", 9) == 0)
596 tls_in.peerdn = string_unprinting(string_copy(big_buffer + 12));
597 else if (Ustrncmp(p, "ls_sni", 6) == 0)
598 tls_in.sni = string_unprinting(string_copy(big_buffer + 9));
599 else if (Ustrncmp(p, "ls_ocsp", 7) == 0)
600 tls_in.ocsp = big_buffer[10] - '0';
604 #if defined(EXPERIMENTAL_INTERNATIONAL) && !defined(COMPILE_UTILITY)
606 if (Ustrncmp(p, "tf8_downcvt", 11) == 0)
607 message_utf8_downconvert = 1;
608 else if (Ustrncmp(p, "tf8_downcvt_opt", 15) == 0)
609 message_utf8_downconvert = -1;
613 default: /* Present because some compilers complain if all */
614 break; /* possibilities are not covered. */
618 /* Build sender_fullhost if required */
620 #ifndef COMPILE_UTILITY
621 host_build_sender_fullhost();
622 #endif /* COMPILE_UTILITY */
624 #ifndef COMPILE_UTILITY
626 debug_printf("sender_local=%d ident=%s\n", sender_local,
627 (sender_ident == NULL)? US"unset" : sender_ident);
628 #endif /* COMPILE_UTILITY */
630 /* We now have the tree of addresses NOT to deliver to, or a line
631 containing "XX", indicating no tree. */
633 if (Ustrncmp(big_buffer, "XX\n", 3) != 0 &&
634 !read_nonrecipients_tree(&tree_nonrecipients, f, big_buffer, big_buffer_size))
635 goto SPOOL_FORMAT_ERROR;
637 #ifndef COMPILE_UTILITY
640 debug_printf("Non-recipients:\n");
641 debug_print_tree(tree_nonrecipients);
643 #endif /* COMPILE_UTILITY */
645 /* After reading the tree, the next line has not yet been read into the
646 buffer. It contains the count of recipients which follow on separate lines. */
648 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
649 if (sscanf(CS big_buffer, "%d", &rcount) != 1) goto SPOOL_FORMAT_ERROR;
651 #ifndef COMPILE_UTILITY
652 DEBUG(D_deliver) debug_printf("recipients_count=%d\n", rcount);
653 #endif /* COMPILE_UTILITY */
655 recipients_list_max = rcount;
656 recipients_list = store_get(rcount * sizeof(recipient_item));
658 for (recipients_count = 0; recipients_count < rcount; recipients_count++)
663 uschar *orcpt = NULL;
664 uschar *errors_to = NULL;
667 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
668 nn = Ustrlen(big_buffer);
669 if (nn < 2) goto SPOOL_FORMAT_ERROR;
671 /* Remove the newline; this terminates the address if there is no additional
674 p = big_buffer + nn - 1;
677 /* Look back from the end of the line for digits and special terminators.
678 Since an address must end with a domain, we can tell that extra data is
679 present by the presence of the terminator, which is always some character
680 that cannot exist in a domain. (If I'd thought of the need for additional
681 data early on, I'd have put it at the start, with the address at the end. As
682 it is, we have to operate backwards. Addresses are permitted to contain
685 This code has to cope with various versions of this data that have evolved
686 over time. In all cases, the line might just contain an address, with no
687 additional data. Otherwise, the possibilities are as follows:
689 Exim 3 type: <address><space><digits>,<digits>,<digits>
691 The second set of digits is the parent number for one_time addresses. The
692 other values were remnants of earlier experiments that were abandoned.
694 Exim 4 first type: <address><space><digits>
696 The digits are the parent number for one_time addresses.
698 Exim 4 new type: <address><space><data>#<type bits>
700 The type bits indicate what the contents of the data are.
702 Bit 01 indicates that, reading from right to left, the data
703 ends with <errors_to address><space><len>,<pno> where pno is
704 the parent number for one_time addresses, and len is the length
705 of the errors_to address (zero meaning none).
707 Bit 02 indicates that, again reading from right to left, the data continues
708 with orcpt len(orcpt),dsn_flags
711 while (isdigit(*p)) p--;
713 /* Handle Exim 3 spool files */
718 while (isdigit(*(--p)) || *p == ',');
722 (void)sscanf(CS p, "%d,%d", &dummy, &pno);
726 /* Handle early Exim 4 spool files */
731 (void)sscanf(CS p, "%d", &pno);
734 /* Handle current format Exim 4 spool files */
740 #if !defined (COMPILE_UTILITY)
741 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - Exim 4 standard format spoolfile\n");
744 (void)sscanf(CS p+1, "%d", &flags);
746 if ((flags & 0x01) != 0) /* one_time data exists */
749 while (isdigit(*(--p)) || *p == ',' || *p == '-');
750 (void)sscanf(CS p+1, "%d,%d", &len, &pno);
755 errors_to = string_copy(p);
759 *(--p) = 0; /* Terminate address */
760 if ((flags & 0x02) != 0) /* one_time data exists */
763 while (isdigit(*(--p)) || *p == ',' || *p == '-');
764 (void)sscanf(CS p+1, "%d,%d", &len, &dsn_flags);
769 orcpt = string_copy(p);
773 *(--p) = 0; /* Terminate address */
775 #if !defined(COMPILE_UTILITY)
777 { DEBUG(D_deliver) debug_printf("**** SPOOL_IN - No additional fields\n"); }
779 if ((orcpt != NULL) || (dsn_flags != 0))
781 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| orcpt: |%s| dsn_flags: %d\n",
782 big_buffer, orcpt, dsn_flags);
784 if (errors_to != NULL)
786 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| errorsto: |%s|\n",
787 big_buffer, errors_to);
791 recipients_list[recipients_count].address = string_copy(big_buffer);
792 recipients_list[recipients_count].pno = pno;
793 recipients_list[recipients_count].errors_to = errors_to;
794 recipients_list[recipients_count].orcpt = orcpt;
795 recipients_list[recipients_count].dsn_flags = dsn_flags;
798 /* The remainder of the spool header file contains the headers for the message,
799 separated off from the previous data by a blank line. Each header is preceded
800 by a count of its length and either a certain letter (for various identified
801 headers), space (for a miscellaneous live header) or an asterisk (for a header
802 that has been rewritten). Count the Received: headers. We read the headers
803 always, in order to check on the format of the file, but only create a header
804 list if requested to do so. */
807 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
808 if (big_buffer[0] != '\n') goto SPOOL_FORMAT_ERROR;
810 while ((n = fgetc(f)) != EOF)
816 if (!isdigit(n)) goto SPOOL_FORMAT_ERROR;
817 if(ungetc(n, f) == EOF || fscanf(f, "%d%c ", &n, flag) == EOF)
818 goto SPOOL_READ_ERROR;
819 if (flag[0] != '*') message_size += n; /* Omit non-transmitted headers */
823 h = store_get(sizeof(header_line));
827 h->text = store_get(n+1);
829 if (h->type == htype_received) received_count++;
831 if (header_list == NULL) header_list = h;
832 else header_last->next = h;
835 for (i = 0; i < n; i++)
838 if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR;
839 if (c == '\n' && h->type != htype_old) message_linecount++;
845 /* Not requiring header data, just skip through the bytes */
847 else for (i = 0; i < n; i++)
850 if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR;
854 /* We have successfully read the data in the header file. Update the message
855 line count by adding the body linecount to the header linecount. Close the file
856 and give a positive response. */
858 #ifndef COMPILE_UTILITY
859 DEBUG(D_deliver) debug_printf("body_linecount=%d message_linecount=%d\n",
860 body_linecount, message_linecount);
861 #endif /* COMPILE_UTILITY */
863 message_linecount += body_linecount;
866 return spool_read_OK;
869 /* There was an error reading the spool or there was missing data,
870 or there was a format error. A "read error" with no errno means an
871 unexpected EOF, which we treat as a format error. */
878 #ifndef COMPILE_UTILITY
879 DEBUG(D_any) debug_printf("Error while reading spool file %s\n", name);
880 #endif /* COMPILE_UTILITY */
884 return inheader? spool_read_hdrerror : spool_read_enverror;
889 #ifndef COMPILE_UTILITY
890 DEBUG(D_any) debug_printf("Format error in spool file %s\n", name);
891 #endif /* COMPILE_UTILITY */
894 errno = ERRNO_SPOOLFORMAT;
895 return inheader? spool_read_hdrerror : spool_read_enverror;
900 /* End of spool_in.c */