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 #ifdef EXPERIMENTAL_DSN
307 /* Generate the full name and open the file. If message_subdir is already
308 set, just look in the given directory. Otherwise, look in both the split
309 and unsplit directories, as for the data file above. */
311 for (n = 0; n < 2; n++)
314 message_subdir[0] = (split_spool_directory == (n == 0))? name[5] : 0;
315 sprintf(CS big_buffer, "%s/input/%s/%s", spool_directory, message_subdir,
317 f = Ufopen(big_buffer, "rb");
318 if (f != NULL) break;
319 if (n != 0 || subdir_set || errno != ENOENT) return spool_read_notopen;
324 #ifndef COMPILE_UTILITY
325 DEBUG(D_deliver) debug_printf("reading spool file %s\n", name);
326 #endif /* COMPILE_UTILITY */
328 /* The first line of a spool file contains the message id followed by -H (i.e.
329 the file name), in order to make the file self-identifying. */
331 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
332 if (Ustrlen(big_buffer) != MESSAGE_ID_LENGTH + 3 ||
333 Ustrncmp(big_buffer, name, MESSAGE_ID_LENGTH + 2) != 0)
334 goto SPOOL_FORMAT_ERROR;
336 /* The next three lines in the header file are in a fixed format. The first
337 contains the login, uid, and gid of the user who caused the file to be written.
338 There are known cases where a negative gid is used, so we allow for both
339 negative uids and gids. The second contains the mail address of the message's
340 sender, enclosed in <>. The third contains the time the message was received,
341 and the number of warning messages for delivery delays that have been sent. */
343 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
345 p = big_buffer + Ustrlen(big_buffer);
346 while (p > big_buffer && isspace(p[-1])) p--;
348 if (!isdigit(p[-1])) goto SPOOL_FORMAT_ERROR;
349 while (p > big_buffer && (isdigit(p[-1]) || '-' == p[-1])) p--;
351 if (p <= big_buffer || *(--p) != ' ') goto SPOOL_FORMAT_ERROR;
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;
359 originator_login = string_copy(big_buffer);
360 originator_uid = (uid_t)uid;
361 originator_gid = (gid_t)gid;
364 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
365 n = Ustrlen(big_buffer);
366 if (n < 3 || big_buffer[0] != '<' || big_buffer[n-2] != '>')
367 goto SPOOL_FORMAT_ERROR;
369 sender_address = store_get(n-2);
370 Ustrncpy(sender_address, big_buffer+1, n-3);
371 sender_address[n-3] = 0;
374 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
375 if (sscanf(CS big_buffer, "%d %d", &received_time, &warning_count) != 2)
376 goto SPOOL_FORMAT_ERROR;
378 message_age = time(NULL) - received_time;
380 #ifndef COMPILE_UTILITY
381 DEBUG(D_deliver) debug_printf("user=%s uid=%ld gid=%ld sender=%s\n",
382 originator_login, (long int)originator_uid, (long int)originator_gid,
384 #endif /* COMPILE_UTILITY */
386 /* Now there may be a number of optional lines, each starting with "-". If you
387 add a new setting here, make sure you set the default above.
389 Because there are now quite a number of different possibilities, we use a
390 switch on the first character to avoid too many failing tests. Thanks to Nico
391 Erfurth for the patch that implemented this. I have made it even more efficient
392 by not re-scanning the first two characters.
394 To allow new versions of Exim that add additional flags to interwork with older
395 versions that do not understand them, just ignore any lines starting with "-"
396 that we don't recognize. Otherwise it wouldn't be possible to back off a new
397 version that left new-style flags written on the spool. */
403 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
404 if (big_buffer[0] != '-') break;
405 while ( (len = Ustrlen(big_buffer)) == big_buffer_size-1
406 && big_buffer[len-1] != '\n'
408 { /* buffer not big enough for line; certs make this possible */
410 if (big_buffer_size >= BIG_BUFFER_SIZE*4) goto SPOOL_READ_ERROR;
411 buf = store_get_perm(big_buffer_size *= 2);
412 memcpy(buf, big_buffer, --len);
414 if (Ufgets(big_buffer+len, big_buffer_size-len, f) == NULL)
415 goto SPOOL_READ_ERROR;
417 big_buffer[len-1] = 0;
419 switch(big_buffer[1])
423 /* Nowadays we use "-aclc" and "-aclm" for the different types of ACL
424 variable, because Exim allows any number of them, with arbitrary names.
425 The line in the spool file is "-acl[cm] <name> <length>". The name excludes
428 if (Ustrncmp(p, "clc ", 4) == 0 ||
429 Ustrncmp(p, "clm ", 4) == 0)
431 uschar *name, *endptr;
434 endptr = Ustrchr(big_buffer + 6, ' ');
435 if (endptr == NULL) goto SPOOL_FORMAT_ERROR;
436 name = string_sprintf("%c%.*s", big_buffer[4], endptr - big_buffer - 6,
438 if (sscanf(CS endptr, " %d", &count) != 1) goto SPOOL_FORMAT_ERROR;
439 node = acl_var_create(name);
440 node->data.ptr = store_get(count + 1);
441 if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR;
442 ((uschar*)node->data.ptr)[count] = 0;
445 else if (Ustrcmp(p, "llow_unqualified_recipient") == 0)
446 allow_unqualified_recipient = TRUE;
447 else if (Ustrcmp(p, "llow_unqualified_sender") == 0)
448 allow_unqualified_sender = TRUE;
450 else if (Ustrncmp(p, "uth_id", 6) == 0)
451 authenticated_id = string_copy(big_buffer + 9);
452 else if (Ustrncmp(p, "uth_sender", 10) == 0)
453 authenticated_sender = string_copy(big_buffer + 13);
454 else if (Ustrncmp(p, "ctive_hostname", 14) == 0)
455 smtp_active_hostname = string_copy(big_buffer + 17);
457 /* For long-term backward compatibility, we recognize "-acl", which was
458 used before the number of ACL variables changed from 10 to 20. This was
459 before the subsequent change to an arbitrary number of named variables.
460 This code is retained so that upgrades from very old versions can still
461 handle old-format spool files. The value given after "-acl" is a number
462 that is 0-9 for connection variables, and 10-19 for message variables. */
464 else if (Ustrncmp(p, "cl ", 3) == 0)
467 uschar name[20]; /* Need plenty of space for %d format */
469 if (sscanf(CS big_buffer + 5, "%d %d", &index, &count) != 2)
470 goto SPOOL_FORMAT_ERROR;
472 (void) string_format(name, sizeof(name), "%c%d", 'c', index);
473 else if (index < 20) /* ignore out-of-range index */
474 (void) string_format(name, sizeof(name), "%c%d", 'm', index - 10);
475 node = acl_var_create(name);
476 node->data.ptr = store_get(count + 1);
477 if (fread(node->data.ptr, 1, count+1, f) < count) goto SPOOL_READ_ERROR;
478 ((uschar*)node->data.ptr)[count] = 0;
483 if (Ustrncmp(p, "ody_linecount", 13) == 0)
484 body_linecount = Uatoi(big_buffer + 15);
485 else if (Ustrncmp(p, "ody_zerocount", 13) == 0)
486 body_zerocount = Uatoi(big_buffer + 15);
487 #ifdef EXPERIMENTAL_BRIGHTMAIL
488 else if (Ustrncmp(p, "mi_verdicts ", 12) == 0)
489 bmi_verdicts = string_copy(big_buffer + 14);
494 if (Ustrcmp(p, "eliver_firsttime") == 0)
495 deliver_firsttime = TRUE;
496 #ifdef EXPERIMENTAL_DSN
497 /* Check if the dsn flags have been set in the header file */
498 else if (Ustrncmp(p, "sn_ret", 6) == 0)
500 dsn_ret= atoi(big_buffer + 8);
502 else if (Ustrncmp(p, "sn_envid", 8) == 0)
504 dsn_envid = string_copy(big_buffer + 11);
510 if (Ustrncmp(p, "rozen", 5) == 0)
512 deliver_freeze = TRUE;
513 sscanf(CS big_buffer+7, TIME_T_FMT, &deliver_frozen_at);
518 if (Ustrcmp(p, "ost_lookup_deferred") == 0)
519 host_lookup_deferred = TRUE;
520 else if (Ustrcmp(p, "ost_lookup_failed") == 0)
521 host_lookup_failed = TRUE;
522 else if (Ustrncmp(p, "ost_auth", 8) == 0)
523 sender_host_authenticated = string_copy(big_buffer + 11);
524 else if (Ustrncmp(p, "ost_name", 8) == 0)
525 sender_host_name = string_copy(big_buffer + 11);
526 else if (Ustrncmp(p, "elo_name", 8) == 0)
527 sender_helo_name = string_copy(big_buffer + 11);
529 /* We now record the port number after the address, separated by a
530 dot. For compatibility during upgrading, do nothing if there
531 isn't a value (it gets left at zero). */
533 else if (Ustrncmp(p, "ost_address", 11) == 0)
535 sender_host_port = host_address_extract_port(big_buffer + 14);
536 sender_host_address = string_copy(big_buffer + 14);
541 if (Ustrncmp(p, "nterface_address", 16) == 0)
543 interface_port = host_address_extract_port(big_buffer + 19);
544 interface_address = string_copy(big_buffer + 19);
546 else if (Ustrncmp(p, "dent", 4) == 0)
547 sender_ident = string_copy(big_buffer + 7);
551 if (Ustrcmp(p, "ocal") == 0) sender_local = TRUE;
552 else if (Ustrcmp(big_buffer, "-localerror") == 0)
553 local_error_message = TRUE;
554 else if (Ustrncmp(p, "ocal_scan ", 10) == 0)
555 local_scan_data = string_copy(big_buffer + 12);
559 if (Ustrcmp(p, "anual_thaw") == 0) deliver_manual_thaw = TRUE;
560 else if (Ustrncmp(p, "ax_received_linelength", 22) == 0)
561 max_received_linelength = Uatoi(big_buffer + 24);
565 if (*p == 0) dont_deliver = TRUE; /* -N */
569 if (Ustrncmp(p, "eceived_protocol", 16) == 0)
570 received_protocol = string_copy(big_buffer + 19);
574 if (Ustrncmp(p, "ender_set_untrusted", 19) == 0)
575 sender_set_untrusted = TRUE;
576 #ifdef WITH_CONTENT_SCAN
577 else if (Ustrncmp(p, "pam_score_int ", 14) == 0)
578 spam_score_int = string_copy(big_buffer + 16);
584 if (Ustrncmp(p, "ls_certificate_verified", 23) == 0)
585 tls_in.certificate_verified = TRUE;
586 else if (Ustrncmp(p, "ls_cipher", 9) == 0)
587 tls_in.cipher = string_copy(big_buffer + 12);
588 # ifndef COMPILE_UTILITY /* tls support fns not built in */
589 else if (Ustrncmp(p, "ls_ourcert", 10) == 0)
590 (void) tls_import_cert(big_buffer + 13, &tls_in.ourcert);
591 else if (Ustrncmp(p, "ls_peercert", 11) == 0)
592 (void) tls_import_cert(big_buffer + 14, &tls_in.peercert);
594 else if (Ustrncmp(p, "ls_peerdn", 9) == 0)
595 tls_in.peerdn = string_unprinting(string_copy(big_buffer + 12));
596 else if (Ustrncmp(p, "ls_sni", 6) == 0)
597 tls_in.sni = string_unprinting(string_copy(big_buffer + 9));
598 else if (Ustrncmp(p, "ls_ocsp", 7) == 0)
599 tls_in.ocsp = big_buffer[10] - '0';
603 default: /* Present because some compilers complain if all */
604 break; /* possibilities are not covered. */
608 /* Build sender_fullhost if required */
610 #ifndef COMPILE_UTILITY
611 host_build_sender_fullhost();
612 #endif /* COMPILE_UTILITY */
614 #ifndef COMPILE_UTILITY
616 debug_printf("sender_local=%d ident=%s\n", sender_local,
617 (sender_ident == NULL)? US"unset" : sender_ident);
618 #endif /* COMPILE_UTILITY */
620 /* We now have the tree of addresses NOT to deliver to, or a line
621 containing "XX", indicating no tree. */
623 if (Ustrncmp(big_buffer, "XX\n", 3) != 0 &&
624 !read_nonrecipients_tree(&tree_nonrecipients, f, big_buffer, big_buffer_size))
625 goto SPOOL_FORMAT_ERROR;
627 #ifndef COMPILE_UTILITY
630 debug_printf("Non-recipients:\n");
631 debug_print_tree(tree_nonrecipients);
633 #endif /* COMPILE_UTILITY */
635 /* After reading the tree, the next line has not yet been read into the
636 buffer. It contains the count of recipients which follow on separate lines. */
638 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
639 if (sscanf(CS big_buffer, "%d", &rcount) != 1) goto SPOOL_FORMAT_ERROR;
641 #ifndef COMPILE_UTILITY
642 DEBUG(D_deliver) debug_printf("recipients_count=%d\n", rcount);
643 #endif /* COMPILE_UTILITY */
645 recipients_list_max = rcount;
646 recipients_list = store_get(rcount * sizeof(recipient_item));
648 for (recipients_count = 0; recipients_count < rcount; recipients_count++)
652 #ifdef EXPERIMENTAL_DSN
654 uschar *orcpt = NULL;
656 uschar *errors_to = NULL;
659 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
660 nn = Ustrlen(big_buffer);
661 if (nn < 2) goto SPOOL_FORMAT_ERROR;
663 /* Remove the newline; this terminates the address if there is no additional
666 p = big_buffer + nn - 1;
669 /* Look back from the end of the line for digits and special terminators.
670 Since an address must end with a domain, we can tell that extra data is
671 present by the presence of the terminator, which is always some character
672 that cannot exist in a domain. (If I'd thought of the need for additional
673 data early on, I'd have put it at the start, with the address at the end. As
674 it is, we have to operate backwards. Addresses are permitted to contain
677 This code has to cope with various versions of this data that have evolved
678 over time. In all cases, the line might just contain an address, with no
679 additional data. Otherwise, the possibilities are as follows:
681 Exim 3 type: <address><space><digits>,<digits>,<digits>
683 The second set of digits is the parent number for one_time addresses. The
684 other values were remnants of earlier experiments that were abandoned.
686 Exim 4 first type: <address><space><digits>
688 The digits are the parent number for one_time addresses.
690 Exim 4 new type: <address><space><data>#<type bits>
692 The type bits indicate what the contents of the data are.
694 Bit 01 indicates that, reading from right to left, the data
695 ends with <errors_to address><space><len>,<pno> where pno is
696 the parent number for one_time addresses, and len is the length
697 of the errors_to address (zero meaning none).
699 Bit 02 indicates that, again reading from right to left, the data continues
700 with orcpt len(orcpt),dsn_flags
703 while (isdigit(*p)) p--;
705 /* Handle Exim 3 spool files */
710 while (isdigit(*(--p)) || *p == ',');
714 (void)sscanf(CS p, "%d,%d", &dummy, &pno);
718 /* Handle early Exim 4 spool files */
723 (void)sscanf(CS p, "%d", &pno);
726 /* Handle current format Exim 4 spool files */
732 #if defined(EXPERIMENTAL_DSN) && !defined (COMPILE_UTILITY)
733 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - Exim 4 standard format spoolfile\n");
736 (void)sscanf(CS p+1, "%d", &flags);
738 if ((flags & 0x01) != 0) /* one_time data exists */
741 while (isdigit(*(--p)) || *p == ',' || *p == '-');
742 (void)sscanf(CS p+1, "%d,%d", &len, &pno);
747 errors_to = string_copy(p);
751 *(--p) = 0; /* Terminate address */
752 #ifdef EXPERIMENTAL_DSN
753 if ((flags & 0x02) != 0) /* one_time data exists */
756 while (isdigit(*(--p)) || *p == ',' || *p == '-');
757 (void)sscanf(CS p+1, "%d,%d", &len, &dsn_flags);
762 orcpt = string_copy(p);
766 *(--p) = 0; /* Terminate address */
767 #endif /* EXPERIMENTAL_DSN */
769 #if defined(EXPERIMENTAL_DSN) && !defined(COMPILE_UTILITY)
771 { DEBUG(D_deliver) debug_printf("**** SPOOL_IN - No additional fields\n"); }
773 if ((orcpt != NULL) || (dsn_flags != 0))
775 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| orcpt: |%s| dsn_flags: %d\n",
776 big_buffer, orcpt, dsn_flags);
778 if (errors_to != NULL)
780 DEBUG(D_deliver) debug_printf("**** SPOOL_IN - address: |%s| errorsto: |%s|\n",
781 big_buffer, errors_to);
783 #endif /* EXPERIMENTAL_DSN */
785 recipients_list[recipients_count].address = string_copy(big_buffer);
786 recipients_list[recipients_count].pno = pno;
787 recipients_list[recipients_count].errors_to = errors_to;
788 #ifdef EXPERIMENTAL_DSN
789 recipients_list[recipients_count].orcpt = orcpt;
790 recipients_list[recipients_count].dsn_flags = dsn_flags;
794 /* The remainder of the spool header file contains the headers for the message,
795 separated off from the previous data by a blank line. Each header is preceded
796 by a count of its length and either a certain letter (for various identified
797 headers), space (for a miscellaneous live header) or an asterisk (for a header
798 that has been rewritten). Count the Received: headers. We read the headers
799 always, in order to check on the format of the file, but only create a header
800 list if requested to do so. */
803 if (Ufgets(big_buffer, big_buffer_size, f) == NULL) goto SPOOL_READ_ERROR;
804 if (big_buffer[0] != '\n') goto SPOOL_FORMAT_ERROR;
806 while ((n = fgetc(f)) != EOF)
812 if (!isdigit(n)) goto SPOOL_FORMAT_ERROR;
813 if(ungetc(n, f) == EOF || fscanf(f, "%d%c ", &n, flag) == EOF)
814 goto SPOOL_READ_ERROR;
815 if (flag[0] != '*') message_size += n; /* Omit non-transmitted headers */
819 h = store_get(sizeof(header_line));
823 h->text = store_get(n+1);
825 if (h->type == htype_received) received_count++;
827 if (header_list == NULL) header_list = h;
828 else header_last->next = h;
831 for (i = 0; i < n; i++)
834 if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR;
835 if (c == '\n' && h->type != htype_old) message_linecount++;
841 /* Not requiring header data, just skip through the bytes */
843 else for (i = 0; i < n; i++)
846 if (c == 0 || c == EOF) goto SPOOL_FORMAT_ERROR;
850 /* We have successfully read the data in the header file. Update the message
851 line count by adding the body linecount to the header linecount. Close the file
852 and give a positive response. */
854 #ifndef COMPILE_UTILITY
855 DEBUG(D_deliver) debug_printf("body_linecount=%d message_linecount=%d\n",
856 body_linecount, message_linecount);
857 #endif /* COMPILE_UTILITY */
859 message_linecount += body_linecount;
862 return spool_read_OK;
865 /* There was an error reading the spool or there was missing data,
866 or there was a format error. A "read error" with no errno means an
867 unexpected EOF, which we treat as a format error. */
874 #ifndef COMPILE_UTILITY
875 DEBUG(D_any) debug_printf("Error while reading spool file %s\n", name);
876 #endif /* COMPILE_UTILITY */
880 return inheader? spool_read_hdrerror : spool_read_enverror;
885 #ifndef COMPILE_UTILITY
886 DEBUG(D_any) debug_printf("Format error in spool file %s\n", name);
887 #endif /* COMPILE_UTILITY */
890 errno = ERRNO_SPOOLFORMAT;
891 return inheader? spool_read_hdrerror : spool_read_enverror;
896 /* End of spool_in.c */