1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2015 */
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 # ifndef COMPILE_UTILITY /* tls support fns not built in */
292 tls_free_cert(&tls_in.ourcert);
293 tls_free_cert(&tls_in.peercert);
295 tls_in.peerdn = NULL;
297 tls_in.ocsp = OCSP_NOT_REQ;
300 #ifdef WITH_CONTENT_SCAN
301 spam_score_int = NULL;
304 #if defined(EXPERIMENTAL_INTERNATIONAL) && !defined(COMPILE_UTILITY)
305 message_smtputf8 = FALSE;
306 message_utf8_downconvert = 0;
312 /* Generate the full name and open the file. If message_subdir is already
313 set, just look in the given directory. Otherwise, look in both the split
314 and unsplit directories, as for the data file above. */
316 for (n = 0; n < 2; n++)
319 message_subdir[0] = (split_spool_directory == (n == 0))? name[5] : 0;
320 sprintf(CS big_buffer, "%s/input/%s/%s", spool_directory, message_subdir,
322 f = Ufopen(big_buffer, "rb");
323 if (f != NULL) break;
324 if (n != 0 || subdir_set || errno != ENOENT) return spool_read_notopen;
329 #ifndef COMPILE_UTILITY
330 DEBUG(D_deliver) debug_printf("reading spool file %s\n", name);
331 #endif /* COMPILE_UTILITY */
333 /* The first line of a spool file contains the message id followed by -H (i.e.
334 the file name), in order to make the file self-identifying. */
336 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
337 if (Ustrlen(big_buffer) != MESSAGE_ID_LENGTH + 3 ||
338 Ustrncmp(big_buffer, name, MESSAGE_ID_LENGTH + 2) != 0)
339 goto SPOOL_FORMAT_ERROR;
341 /* The next three lines in the header file are in a fixed format. The first
342 contains the login, uid, and gid of the user who caused the file to be written.
343 There are known cases where a negative gid is used, so we allow for both
344 negative uids and gids. The second contains the mail address of the message's
345 sender, enclosed in <>. The third contains the time the message was received,
346 and the number of warning messages for delivery delays that have been sent. */
348 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
350 p = big_buffer + Ustrlen(big_buffer);
351 while (p > big_buffer && isspace(p[-1])) p--;
353 if (!isdigit(p[-1])) goto SPOOL_FORMAT_ERROR;
354 while (p > big_buffer && (isdigit(p[-1]) || '-' == p[-1])) p--;
356 if (p <= big_buffer || *(--p) != ' ') goto SPOOL_FORMAT_ERROR;
358 if (!isdigit(p[-1])) goto SPOOL_FORMAT_ERROR;
359 while (p > big_buffer && (isdigit(p[-1]) || '-' == p[-1])) p--;
361 if (p <= big_buffer || *(--p) != ' ') goto SPOOL_FORMAT_ERROR;
364 originator_login = string_copy(big_buffer);
365 originator_uid = (uid_t)uid;
366 originator_gid = (gid_t)gid;
369 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
370 n = Ustrlen(big_buffer);
371 if (n < 3 || big_buffer[0] != '<' || big_buffer[n-2] != '>')
372 goto SPOOL_FORMAT_ERROR;
374 sender_address = store_get(n-2);
375 Ustrncpy(sender_address, big_buffer+1, n-3);
376 sender_address[n-3] = 0;
379 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
380 if (sscanf(CS big_buffer, "%d %d", &received_time, &warning_count) != 2)
381 goto SPOOL_FORMAT_ERROR;
383 message_age = time(NULL) - received_time;
385 #ifndef COMPILE_UTILITY
386 DEBUG(D_deliver) debug_printf("user=%s uid=%ld gid=%ld sender=%s\n",
387 originator_login, (long int)originator_uid, (long int)originator_gid,
389 #endif /* COMPILE_UTILITY */
391 /* Now there may be a number of optional lines, each starting with "-". If you
392 add a new setting here, make sure you set the default above.
394 Because there are now quite a number of different possibilities, we use a
395 switch on the first character to avoid too many failing tests. Thanks to Nico
396 Erfurth for the patch that implemented this. I have made it even more efficient
397 by not re-scanning the first two characters.
399 To allow new versions of Exim that add additional flags to interwork with older
400 versions that do not understand them, just ignore any lines starting with "-"
401 that we don't recognize. Otherwise it wouldn't be possible to back off a new
402 version that left new-style flags written on the spool. */
408 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
409 if (big_buffer[0] != '-') break;
410 while ( (len = Ustrlen(big_buffer)) == big_buffer_size-1
411 && big_buffer[len-1] != '\n'
413 { /* buffer not big enough for line; certs make this possible */
415 if (big_buffer_size >= BIG_BUFFER_SIZE*4) goto SPOOL_READ_ERROR;
416 buf = store_get_perm(big_buffer_size *= 2);
417 memcpy(buf, big_buffer, --len);
419 if (Ufgets(big_buffer+len, big_buffer_size-len, f) == NULL)
420 goto SPOOL_READ_ERROR;
422 big_buffer[len-1] = 0;
424 switch(big_buffer[1])
428 /* Nowadays we use "-aclc" and "-aclm" for the different types of ACL
429 variable, because Exim allows any number of them, with arbitrary names.
430 The line in the spool file is "-acl[cm] <name> <length>". The name excludes
433 if (Ustrncmp(p, "clc ", 4) == 0 ||
434 Ustrncmp(p, "clm ", 4) == 0)
436 uschar *name, *endptr;
439 endptr = Ustrchr(big_buffer + 6, ' ');
440 if (endptr == NULL) goto SPOOL_FORMAT_ERROR;
441 name = string_sprintf("%c%.*s", big_buffer[4], endptr - big_buffer - 6,
443 if (sscanf(CS endptr, " %d", &count) != 1) goto SPOOL_FORMAT_ERROR;
444 node = acl_var_create(name);
445 node->data.ptr = store_get(count + 1);
446 if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR;
447 ((uschar*)node->data.ptr)[count] = 0;
450 else if (Ustrcmp(p, "llow_unqualified_recipient") == 0)
451 allow_unqualified_recipient = TRUE;
452 else if (Ustrcmp(p, "llow_unqualified_sender") == 0)
453 allow_unqualified_sender = TRUE;
455 else if (Ustrncmp(p, "uth_id", 6) == 0)
456 authenticated_id = string_copy(big_buffer + 9);
457 else if (Ustrncmp(p, "uth_sender", 10) == 0)
458 authenticated_sender = string_copy(big_buffer + 13);
459 else if (Ustrncmp(p, "ctive_hostname", 14) == 0)
460 smtp_active_hostname = string_copy(big_buffer + 17);
462 /* For long-term backward compatibility, we recognize "-acl", which was
463 used before the number of ACL variables changed from 10 to 20. This was
464 before the subsequent change to an arbitrary number of named variables.
465 This code is retained so that upgrades from very old versions can still
466 handle old-format spool files. The value given after "-acl" is a number
467 that is 0-9 for connection variables, and 10-19 for message variables. */
469 else if (Ustrncmp(p, "cl ", 3) == 0)
472 uschar name[20]; /* Need plenty of space for %d format */
474 if (sscanf(CS big_buffer + 5, "%d %d", &index, &count) != 2)
475 goto SPOOL_FORMAT_ERROR;
477 (void) string_format(name, sizeof(name), "%c%d", 'c', index);
478 else if (index < 20) /* ignore out-of-range index */
479 (void) string_format(name, sizeof(name), "%c%d", 'm', index - 10);
480 node = acl_var_create(name);
481 node->data.ptr = store_get(count + 1);
482 if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR;
483 ((uschar*)node->data.ptr)[count] = 0;
488 if (Ustrncmp(p, "ody_linecount", 13) == 0)
489 body_linecount = Uatoi(big_buffer + 15);
490 else if (Ustrncmp(p, "ody_zerocount", 13) == 0)
491 body_zerocount = Uatoi(big_buffer + 15);
492 #ifdef EXPERIMENTAL_BRIGHTMAIL
493 else if (Ustrncmp(p, "mi_verdicts ", 12) == 0)
494 bmi_verdicts = string_copy(big_buffer + 14);
499 if (Ustrcmp(p, "eliver_firsttime") == 0)
500 deliver_firsttime = TRUE;
501 /* Check if the dsn flags have been set in the header file */
502 else if (Ustrncmp(p, "sn_ret", 6) == 0)
503 dsn_ret= atoi(CS big_buffer + 8);
504 else if (Ustrncmp(p, "sn_envid", 8) == 0)
505 dsn_envid = string_copy(big_buffer + 11);
509 if (Ustrncmp(p, "rozen", 5) == 0)
511 deliver_freeze = TRUE;
512 sscanf(CS big_buffer+7, TIME_T_FMT, &deliver_frozen_at);
517 if (Ustrcmp(p, "ost_lookup_deferred") == 0)
518 host_lookup_deferred = TRUE;
519 else if (Ustrcmp(p, "ost_lookup_failed") == 0)
520 host_lookup_failed = TRUE;
521 else if (Ustrncmp(p, "ost_auth", 8) == 0)
522 sender_host_authenticated = string_copy(big_buffer + 11);
523 else if (Ustrncmp(p, "ost_name", 8) == 0)
524 sender_host_name = string_copy(big_buffer + 11);
525 else if (Ustrncmp(p, "elo_name", 8) == 0)
526 sender_helo_name = string_copy(big_buffer + 11);
528 /* We now record the port number after the address, separated by a
529 dot. For compatibility during upgrading, do nothing if there
530 isn't a value (it gets left at zero). */
532 else if (Ustrncmp(p, "ost_address", 11) == 0)
534 sender_host_port = host_address_extract_port(big_buffer + 14);
535 sender_host_address = string_copy(big_buffer + 14);
540 if (Ustrncmp(p, "nterface_address", 16) == 0)
542 interface_port = host_address_extract_port(big_buffer + 19);
543 interface_address = string_copy(big_buffer + 19);
545 else if (Ustrncmp(p, "dent", 4) == 0)
546 sender_ident = string_copy(big_buffer + 7);
550 if (Ustrcmp(p, "ocal") == 0) sender_local = TRUE;
551 else if (Ustrcmp(big_buffer, "-localerror") == 0)
552 local_error_message = TRUE;
553 else if (Ustrncmp(p, "ocal_scan ", 10) == 0)
554 local_scan_data = string_copy(big_buffer + 12);
558 if (Ustrcmp(p, "anual_thaw") == 0) deliver_manual_thaw = TRUE;
559 else if (Ustrncmp(p, "ax_received_linelength", 22) == 0)
560 max_received_linelength = Uatoi(big_buffer + 24);
564 if (*p == 0) dont_deliver = TRUE; /* -N */
568 if (Ustrncmp(p, "eceived_protocol", 16) == 0)
569 received_protocol = string_copy(big_buffer + 19);
573 if (Ustrncmp(p, "ender_set_untrusted", 19) == 0)
574 sender_set_untrusted = TRUE;
575 #ifdef WITH_CONTENT_SCAN
576 else if (Ustrncmp(p, "pam_score_int ", 14) == 0)
577 spam_score_int = string_copy(big_buffer + 16);
579 #if defined(EXPERIMENTAL_INTERNATIONAL) && !defined(COMPILE_UTILITY)
580 else if (Ustrncmp(p, "mtputf8", 7) == 0)
581 message_smtputf8 = TRUE;
587 if (Ustrncmp(p, "ls_certificate_verified", 23) == 0)
588 tls_in.certificate_verified = TRUE;
589 else if (Ustrncmp(p, "ls_cipher", 9) == 0)
590 tls_in.cipher = string_copy(big_buffer + 12);
591 # ifndef COMPILE_UTILITY /* tls support fns not built in */
592 else if (Ustrncmp(p, "ls_ourcert", 10) == 0)
593 (void) tls_import_cert(big_buffer + 13, &tls_in.ourcert);
594 else if (Ustrncmp(p, "ls_peercert", 11) == 0)
595 (void) tls_import_cert(big_buffer + 14, &tls_in.peercert);
597 else if (Ustrncmp(p, "ls_peerdn", 9) == 0)
598 tls_in.peerdn = string_unprinting(string_copy(big_buffer + 12));
599 else if (Ustrncmp(p, "ls_sni", 6) == 0)
600 tls_in.sni = string_unprinting(string_copy(big_buffer + 9));
601 else if (Ustrncmp(p, "ls_ocsp", 7) == 0)
602 tls_in.ocsp = big_buffer[10] - '0';
606 #if defined(EXPERIMENTAL_INTERNATIONAL) && !defined(COMPILE_UTILITY)
608 if (Ustrncmp(p, "tf8_downcvt", 11) == 0)
609 message_utf8_downconvert = 1;
610 else if (Ustrncmp(p, "tf8_optdowncvt", 15) == 0)
611 message_utf8_downconvert = -1;
615 default: /* Present because some compilers complain if all */
616 break; /* possibilities are not covered. */
620 /* Build sender_fullhost if required */
622 #ifndef COMPILE_UTILITY
623 host_build_sender_fullhost();
624 #endif /* COMPILE_UTILITY */
626 #ifndef COMPILE_UTILITY
628 debug_printf("sender_local=%d ident=%s\n", sender_local,
629 (sender_ident == NULL)? US"unset" : sender_ident);
630 #endif /* COMPILE_UTILITY */
632 /* We now have the tree of addresses NOT to deliver to, or a line
633 containing "XX", indicating no tree. */
635 if (Ustrncmp(big_buffer, "XX\n", 3) != 0 &&
636 !read_nonrecipients_tree(&tree_nonrecipients, f, big_buffer, big_buffer_size))
637 goto SPOOL_FORMAT_ERROR;
639 #ifndef COMPILE_UTILITY
642 debug_printf("Non-recipients:\n");
643 debug_print_tree(tree_nonrecipients);
645 #endif /* COMPILE_UTILITY */
647 /* After reading the tree, the next line has not yet been read into the
648 buffer. It contains the count of recipients which follow on separate lines. */
650 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
651 if (sscanf(CS big_buffer, "%d", &rcount) != 1) goto SPOOL_FORMAT_ERROR;
653 #ifndef COMPILE_UTILITY
654 DEBUG(D_deliver) debug_printf("recipients_count=%d\n", rcount);
655 #endif /* COMPILE_UTILITY */
657 recipients_list_max = rcount;
658 recipients_list = store_get(rcount * sizeof(recipient_item));
660 for (recipients_count = 0; recipients_count < rcount; recipients_count++)
665 uschar *orcpt = NULL;
666 uschar *errors_to = NULL;
669 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
670 nn = Ustrlen(big_buffer);
671 if (nn < 2) goto SPOOL_FORMAT_ERROR;
673 /* Remove the newline; this terminates the address if there is no additional
676 p = big_buffer + nn - 1;
679 /* Look back from the end of the line for digits and special terminators.
680 Since an address must end with a domain, we can tell that extra data is
681 present by the presence of the terminator, which is always some character
682 that cannot exist in a domain. (If I'd thought of the need for additional
683 data early on, I'd have put it at the start, with the address at the end. As
684 it is, we have to operate backwards. Addresses are permitted to contain
687 This code has to cope with various versions of this data that have evolved
688 over time. In all cases, the line might just contain an address, with no
689 additional data. Otherwise, the possibilities are as follows:
691 Exim 3 type: <address><space><digits>,<digits>,<digits>
693 The second set of digits is the parent number for one_time addresses. The
694 other values were remnants of earlier experiments that were abandoned.
696 Exim 4 first type: <address><space><digits>
698 The digits are the parent number for one_time addresses.
700 Exim 4 new type: <address><space><data>#<type bits>
702 The type bits indicate what the contents of the data are.
704 Bit 01 indicates that, reading from right to left, the data
705 ends with <errors_to address><space><len>,<pno> where pno is
706 the parent number for one_time addresses, and len is the length
707 of the errors_to address (zero meaning none).
709 Bit 02 indicates that, again reading from right to left, the data continues
710 with orcpt len(orcpt),dsn_flags
713 while (isdigit(*p)) p--;
715 /* Handle Exim 3 spool files */
720 while (isdigit(*(--p)) || *p == ',');
724 (void)sscanf(CS p, "%d,%d", &dummy, &pno);
728 /* Handle early Exim 4 spool files */
733 (void)sscanf(CS p, "%d", &pno);
736 /* Handle current format Exim 4 spool files */
742 #if !defined (COMPILE_UTILITY)
743 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - Exim 4 standard format spoolfile\n");
746 (void)sscanf(CS p+1, "%d", &flags);
748 if ((flags & 0x01) != 0) /* one_time data exists */
751 while (isdigit(*(--p)) || *p == ',' || *p == '-');
752 (void)sscanf(CS p+1, "%d,%d", &len, &pno);
757 errors_to = string_copy(p);
761 *(--p) = 0; /* Terminate address */
762 if ((flags & 0x02) != 0) /* one_time data exists */
765 while (isdigit(*(--p)) || *p == ',' || *p == '-');
766 (void)sscanf(CS p+1, "%d,%d", &len, &dsn_flags);
771 orcpt = string_copy(p);
775 *(--p) = 0; /* Terminate address */
777 #if !defined(COMPILE_UTILITY)
779 { DEBUG(D_deliver) debug_printf("**** SPOOL_IN - No additional fields\n"); }
781 if ((orcpt != NULL) || (dsn_flags != 0))
783 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| orcpt: |%s| dsn_flags: %d\n",
784 big_buffer, orcpt, dsn_flags);
786 if (errors_to != NULL)
788 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| errorsto: |%s|\n",
789 big_buffer, errors_to);
793 recipients_list[recipients_count].address = string_copy(big_buffer);
794 recipients_list[recipients_count].pno = pno;
795 recipients_list[recipients_count].errors_to = errors_to;
796 recipients_list[recipients_count].orcpt = orcpt;
797 recipients_list[recipients_count].dsn_flags = dsn_flags;
800 /* The remainder of the spool header file contains the headers for the message,
801 separated off from the previous data by a blank line. Each header is preceded
802 by a count of its length and either a certain letter (for various identified
803 headers), space (for a miscellaneous live header) or an asterisk (for a header
804 that has been rewritten). Count the Received: headers. We read the headers
805 always, in order to check on the format of the file, but only create a header
806 list if requested to do so. */
809 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
810 if (big_buffer[0] != '\n') goto SPOOL_FORMAT_ERROR;
812 while ((n = fgetc(f)) != EOF)
818 if (!isdigit(n)) goto SPOOL_FORMAT_ERROR;
819 if(ungetc(n, f) == EOF || fscanf(f, "%d%c ", &n, flag) == EOF)
820 goto SPOOL_READ_ERROR;
821 if (flag[0] != '*') message_size += n; /* Omit non-transmitted headers */
825 h = store_get(sizeof(header_line));
829 h->text = store_get(n+1);
831 if (h->type == htype_received) received_count++;
833 if (header_list == NULL) header_list = h;
834 else header_last->next = h;
837 for (i = 0; i < n; i++)
840 if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR;
841 if (c == '\n' && h->type != htype_old) message_linecount++;
847 /* Not requiring header data, just skip through the bytes */
849 else for (i = 0; i < n; i++)
852 if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR;
856 /* We have successfully read the data in the header file. Update the message
857 line count by adding the body linecount to the header linecount. Close the file
858 and give a positive response. */
860 #ifndef COMPILE_UTILITY
861 DEBUG(D_deliver) debug_printf("body_linecount=%d message_linecount=%d\n",
862 body_linecount, message_linecount);
863 #endif /* COMPILE_UTILITY */
865 message_linecount += body_linecount;
868 return spool_read_OK;
871 /* There was an error reading the spool or there was missing data,
872 or there was a format error. A "read error" with no errno means an
873 unexpected EOF, which we treat as a format error. */
880 #ifndef COMPILE_UTILITY
881 DEBUG(D_any) debug_printf("Error while reading spool file %s\n", name);
882 #endif /* COMPILE_UTILITY */
886 return inheader? spool_read_hdrerror : spool_read_enverror;
891 #ifndef COMPILE_UTILITY
892 DEBUG(D_any) debug_printf("Format error in spool file %s\n", name);
893 #endif /* COMPILE_UTILITY */
896 errno = ERRNO_SPOOLFORMAT;
897 return inheader? spool_read_hdrerror : spool_read_enverror;
902 /* End of spool_in.c */