1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2016 */
6 /* See the file NOTICE for conditions of use and distribution. */
10 #include "autoreply.h"
14 /* Options specific to the autoreply transport. They must be in alphabetic
15 order (note that "_" comes before the lower case letters). Those starting
16 with "*" are not settable by the user but are used by the option-reading
17 software for alternative value types. Some options are publicly visible and so
18 are stored in the driver instance block. These are flagged with opt_public. */
20 optionlist autoreply_transport_options[] = {
21 { "bcc", opt_stringptr,
22 (void *)offsetof(autoreply_transport_options_block, bcc) },
23 { "cc", opt_stringptr,
24 (void *)offsetof(autoreply_transport_options_block, cc) },
25 { "file", opt_stringptr,
26 (void *)offsetof(autoreply_transport_options_block, file) },
27 { "file_expand", opt_bool,
28 (void *)offsetof(autoreply_transport_options_block, file_expand) },
29 { "file_optional", opt_bool,
30 (void *)offsetof(autoreply_transport_options_block, file_optional) },
31 { "from", opt_stringptr,
32 (void *)offsetof(autoreply_transport_options_block, from) },
33 { "headers", opt_stringptr,
34 (void *)offsetof(autoreply_transport_options_block, headers) },
35 { "log", opt_stringptr,
36 (void *)offsetof(autoreply_transport_options_block, logfile) },
38 (void *)offsetof(autoreply_transport_options_block, mode) },
39 { "never_mail", opt_stringptr,
40 (void *)offsetof(autoreply_transport_options_block, never_mail) },
41 { "once", opt_stringptr,
42 (void *)offsetof(autoreply_transport_options_block, oncelog) },
43 { "once_file_size", opt_int,
44 (void *)offsetof(autoreply_transport_options_block, once_file_size) },
45 { "once_repeat", opt_stringptr,
46 (void *)offsetof(autoreply_transport_options_block, once_repeat) },
47 { "reply_to", opt_stringptr,
48 (void *)offsetof(autoreply_transport_options_block, reply_to) },
49 { "return_message", opt_bool,
50 (void *)offsetof(autoreply_transport_options_block, return_message) },
51 { "subject", opt_stringptr,
52 (void *)offsetof(autoreply_transport_options_block, subject) },
53 { "text", opt_stringptr,
54 (void *)offsetof(autoreply_transport_options_block, text) },
55 { "to", opt_stringptr,
56 (void *)offsetof(autoreply_transport_options_block, to) },
59 /* Size of the options list. An extern variable has to be used so that its
60 address can appear in the tables drtables.c. */
62 int autoreply_transport_options_count =
63 sizeof(autoreply_transport_options)/sizeof(optionlist);
65 /* Default private options block for the autoreply transport. */
67 autoreply_transport_options_block autoreply_transport_option_defaults = {
79 NULL, /* once_repeat */
80 NULL, /* never_mail */
82 0, /* once_file_size */
83 FALSE, /* file_expand */
84 FALSE, /* file_optional */
85 FALSE /* return message */
90 /* Type of text for the checkexpand() function */
92 enum { cke_text, cke_hdr, cke_file };
96 /*************************************************
97 * Initialization entry point *
98 *************************************************/
100 /* Called for each instance, after its options have been read, to
101 enable consistency checks to be done, or anything else that needs
105 autoreply_transport_init(transport_instance *tblock)
108 autoreply_transport_options_block *ob =
109 (autoreply_transport_options_block *)(tblock->options_block);
112 /* If a fixed uid field is set, then a gid field must also be set. */
114 if (tblock->uid_set && !tblock->gid_set && tblock->expand_gid == NULL)
115 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
116 "user set without group for the %s transport", tblock->name);
122 /*************************************************
123 * Expand string and check *
124 *************************************************/
126 /* If the expansion fails, the error is set up in the address. Expanded
127 strings must be checked to ensure they contain only printing characters
128 and white space. If not, the function fails.
132 addr address that is being worked on
133 name transport name, for error text
134 type type, for checking content:
136 cke_hdr => header, allow \n + whitespace
137 cke_file => file name, no non-printers allowed
139 Returns: expanded string if expansion succeeds;
144 checkexpand(uschar *s, address_item *addr, uschar *name, int type)
147 uschar *ss = expand_string(s);
151 addr->transport_return = FAIL;
152 addr->message = string_sprintf("Expansion of \"%s\" failed in %s transport: "
153 "%s", s, name, expand_string_message);
157 if (type != cke_text) for (t = ss; *t != 0; t++)
161 if (mac_isprint(c)) continue;
162 if (type == cke_hdr && c == '\n' && (t[1] == ' ' || t[1] == '\t')) continue;
163 sp = string_printing(s);
164 addr->transport_return = FAIL;
165 addr->message = string_sprintf("Expansion of \"%s\" in %s transport "
166 "contains non-printing character %d", sp, name, c);
176 /*************************************************
177 * Check a header line for never_mail *
178 *************************************************/
180 /* This is called to check to, cc, and bcc for addresses in the never_mail
181 list. Any that are found are removed.
184 listptr points to the list of addresses
185 never_mail an address list, already expanded
191 check_never_mail(uschar **listptr, const uschar *never_mail)
193 uschar *s = *listptr;
197 uschar *error, *next;
198 uschar *e = parse_find_address_end(s, FALSE);
200 int start, end, domain, rc;
202 /* Temporarily terminate the string at the address end while extracting
203 the operative address within. */
206 next = parse_extract_address(s, &error, &start, &end, &domain, FALSE);
209 /* If there is some kind of syntax error, just give up on this header
212 if (next == NULL) break;
214 /* See if the address is on the never_mail list */
216 rc = match_address_list(next, /* address to check */
217 TRUE, /* start caseless */
218 FALSE, /* don't expand the list */
219 &never_mail, /* the list */
220 NULL, /* no caching */
221 -1, /* no expand setup */
222 0, /* separator from list */
223 NULL); /* no lookup value return */
225 if (rc == OK) /* Remove this address */
228 debug_printf("discarding recipient %s (matched never_mail)\n", next);
229 if (terminator == ',') e++;
230 memmove(s, e, Ustrlen(e) + 1);
232 else /* Skip over this address */
235 if (terminator == ',') s++;
239 /* Check to see if we removed the last address, leaving a terminating comma
240 that needs to be removed */
242 s = *listptr + Ustrlen(*listptr);
243 while (s > *listptr && (isspace(s[-1]) || s[-1] == ',')) s--;
246 /* Check to see if there any addresses left; if not, set NULL */
249 while (s != 0 && isspace(*s)) s++;
250 if (*s == 0) *listptr = NULL;
255 /*************************************************
257 *************************************************/
259 /* See local README for interface details. This transport always returns
260 FALSE, indicating that the top address has the status for all - though in fact
261 this transport can handle only one address at at time anyway. */
264 autoreply_transport_entry(
265 transport_instance *tblock, /* data for this instantiation */
266 address_item *addr) /* address we are working on */
272 EXIM_DB *dbm_file = NULL;
273 BOOL file_expand, return_message;
274 uschar *from, *reply_to, *to, *cc, *bcc, *subject, *headers, *text, *file;
275 uschar *logfile, *oncelog;
276 uschar *cache_buff = NULL;
277 uschar *cache_time = NULL;
278 uschar *message_id = NULL;
280 time_t now = time(NULL);
281 time_t once_repeat_sec = 0;
285 autoreply_transport_options_block *ob =
286 (autoreply_transport_options_block *)(tblock->options_block);
288 DEBUG(D_transport) debug_printf("%s transport entered\n", tblock->name);
290 /* Set up for the good case */
292 addr->transport_return = OK;
293 addr->basic_errno = 0;
295 /* If the address is pointing to a reply block, then take all the data
296 from that block. It has typically been set up by a mail filter processing
297 router. Otherwise, the data must be supplied by this transport, and
298 it has to be expanded here. */
300 if (addr->reply != NULL)
302 DEBUG(D_transport) debug_printf("taking data from address\n");
303 from = addr->reply->from;
304 reply_to = addr->reply->reply_to;
305 to = addr->reply->to;
306 cc = addr->reply->cc;
307 bcc = addr->reply->bcc;
308 subject = addr->reply->subject;
309 headers = addr->reply->headers;
310 text = addr->reply->text;
311 file = addr->reply->file;
312 logfile = addr->reply->logfile;
313 oncelog = addr->reply->oncelog;
314 once_repeat_sec = addr->reply->once_repeat;
315 file_expand = addr->reply->file_expand;
316 expand_forbid = addr->reply->expand_forbid;
317 return_message = addr->reply->return_message;
321 uschar *oncerepeat = ob->once_repeat;
323 DEBUG(D_transport) debug_printf("taking data from transport\n");
325 reply_to = ob->reply_to;
329 subject = ob->subject;
330 headers = ob->headers;
333 logfile = ob->logfile;
334 oncelog = ob->oncelog;
335 file_expand = ob->file_expand;
336 return_message = ob->return_message;
339 (from = checkexpand(from, addr, tblock->name, cke_hdr)) == NULL) ||
341 (reply_to = checkexpand(reply_to, addr, tblock->name, cke_hdr)) == NULL) ||
343 (to = checkexpand(to, addr, tblock->name, cke_hdr)) == NULL) ||
345 (cc = checkexpand(cc, addr, tblock->name, cke_hdr)) == NULL) ||
347 (bcc = checkexpand(bcc, addr, tblock->name, cke_hdr)) == NULL) ||
349 (subject = checkexpand(subject, addr, tblock->name, cke_hdr)) == NULL) ||
351 (headers = checkexpand(headers, addr, tblock->name, cke_text)) == NULL) ||
353 (text = checkexpand(text, addr, tblock->name, cke_text)) == NULL) ||
355 (file = checkexpand(file, addr, tblock->name, cke_file)) == NULL) ||
357 (logfile = checkexpand(logfile, addr, tblock->name, cke_file)) == NULL) ||
359 (oncelog = checkexpand(oncelog, addr, tblock->name, cke_file)) == NULL) ||
360 (oncerepeat != NULL &&
361 (oncerepeat = checkexpand(oncerepeat, addr, tblock->name, cke_file)) == NULL))
364 if (oncerepeat != NULL)
366 once_repeat_sec = readconf_readtime(oncerepeat, 0, FALSE);
367 if (once_repeat_sec < 0)
369 addr->transport_return = FAIL;
370 addr->message = string_sprintf("Invalid time value \"%s\" for "
371 "\"once_repeat\" in %s transport", oncerepeat, tblock->name);
377 /* If the never_mail option is set, we have to scan all the recipients and
378 remove those that match. */
380 if (ob->never_mail != NULL)
382 const uschar *never_mail = expand_string(ob->never_mail);
384 if (never_mail == NULL)
386 addr->transport_return = FAIL;
387 addr->message = string_sprintf("Failed to expand \"%s\" for "
388 "\"never_mail\" in %s transport", ob->never_mail, tblock->name);
392 if (to != NULL) check_never_mail(&to, never_mail);
393 if (cc != NULL) check_never_mail(&cc, never_mail);
394 if (bcc != NULL) check_never_mail(&bcc, never_mail);
396 if (to == NULL && cc == NULL && bcc == NULL)
399 debug_printf("*** all recipients removed by never_mail\n");
404 /* If the -N option is set, can't do any more. */
409 debug_printf("*** delivery by %s transport bypassed by -N option\n",
415 /* If the oncelog field is set, we send want to send only one message to the
416 given recipient(s). This works only on the "To" field. If there is no "To"
417 field, the message is always sent. If the To: field contains more than one
418 recipient, the effect might not be quite as envisaged. If once_file_size is
419 set, instead of a dbm file, we use a regular file containing a circular buffer
422 if (oncelog != NULL && *oncelog != 0 && to != NULL)
426 /* Handle fixed-size cache file. */
428 if (ob->once_file_size > 0)
432 cache_fd = Uopen(oncelog, O_CREAT|O_RDWR, ob->mode);
434 if (cache_fd < 0 || fstat(cache_fd, &statbuf) != 0)
436 addr->transport_return = DEFER;
437 addr->message = string_sprintf("Failed to %s \"once\" file %s when "
438 "sending message from %s transport: %s",
439 (cache_fd < 0)? "open" : "stat", oncelog, tblock->name,
444 /* Get store in the temporary pool and read the entire file into it. We get
445 an amount of store that is big enough to add the new entry on the end if we
448 cache_size = statbuf.st_size;
449 add_size = sizeof(time_t) + Ustrlen(to) + 1;
450 cache_buff = store_get(cache_size + add_size);
452 if (read(cache_fd, cache_buff, cache_size) != cache_size)
454 addr->transport_return = DEFER;
455 addr->basic_errno = errno;
456 addr->message = US"error while reading \"once\" file";
460 DEBUG(D_transport) debug_printf("%d bytes read from %s\n", cache_size, oncelog);
462 /* Scan the data for this recipient. Each entry in the file starts with
463 a time_t sized time value, followed by the address, followed by a binary
464 zero. If we find a match, put the time into "then", and the place where it
465 was found into "cache_time". Otherwise, "then" is left at zero. */
468 while (p < cache_buff + cache_size)
470 uschar *s = p + sizeof(time_t);
471 uschar *nextp = s + Ustrlen(s) + 1;
472 if (Ustrcmp(to, s) == 0)
474 memcpy(&then, p, sizeof(time_t));
482 /* Use a DBM file for the list of previous recipients. */
486 EXIM_DATUM key_datum, result_datum;
487 EXIM_DBOPEN(oncelog, O_RDWR|O_CREAT, ob->mode, &dbm_file);
488 if (dbm_file == NULL)
490 addr->transport_return = DEFER;
491 addr->message = string_sprintf("Failed to open %s file %s when sending "
492 "message from %s transport: %s", EXIM_DBTYPE, oncelog, tblock->name,
497 EXIM_DATUM_INIT(key_datum); /* Some DBM libraries need datums */
498 EXIM_DATUM_INIT(result_datum); /* to be cleared */
499 EXIM_DATUM_DATA(key_datum) = CS to;
500 EXIM_DATUM_SIZE(key_datum) = Ustrlen(to) + 1;
502 if (EXIM_DBGET(dbm_file, key_datum, result_datum))
504 /* If the datum size is that of a binary time, we are in the new world
505 where messages are sent periodically. Otherwise the file is an old one,
506 where the datum was filled with a tod_log time, which is assumed to be
507 different in size. For that, only one message is ever sent. This change
508 introduced at Exim 3.00. In a couple of years' time the test on the size
511 if (EXIM_DATUM_SIZE(result_datum) == sizeof(time_t))
513 memcpy(&then, EXIM_DATUM_DATA(result_datum), sizeof(time_t));
519 /* Either "then" is set zero, if no message has yet been sent, or it
520 is set to the time of the last sending. */
522 if (then != 0 && (once_repeat_sec <= 0 || now - then < once_repeat_sec))
525 DEBUG(D_transport) debug_printf("message previously sent to %s%s\n", to,
526 (once_repeat_sec > 0)? " and repeat time not reached" : "");
527 log_fd = logfile ? Uopen(logfile, O_WRONLY|O_APPEND|O_CREAT, ob->mode) : -1;
530 uschar *ptr = log_buffer;
531 sprintf(CS ptr, "%s\n previously sent to %.200s\n", tod_stamp(tod_log), to);
533 if(write(log_fd, log_buffer, ptr - log_buffer) != ptr-log_buffer
535 DEBUG(D_transport) debug_printf("Problem writing log file %s for %s "
536 "transport\n", logfile, tblock->name);
541 DEBUG(D_transport) debug_printf("%s %s\n", (then <= 0)?
542 "no previous message sent to" : "repeat time reached for", to);
545 /* We are going to send a message. Ensure any requested file is available. */
549 ff = Ufopen(file, "rb");
550 if (ff == NULL && !ob->file_optional)
552 addr->transport_return = DEFER;
553 addr->message = string_sprintf("Failed to open file %s when sending "
554 "message from %s transport: %s", file, tblock->name, strerror(errno));
559 /* Make a subprocess to send the message */
561 pid = child_open_exim(&fd);
563 /* Creation of child failed; defer this delivery. */
567 addr->transport_return = DEFER;
568 addr->message = string_sprintf("Failed to create child process to send "
569 "message from %s transport: %s", tblock->name, strerror(errno));
570 DEBUG(D_transport) debug_printf("%s\n", addr->message);
574 /* Create the message to be sent - recipients are taken from the headers,
575 as the -t option is used. The "headers" stuff *must* be last in case there
576 are newlines in it which might, if placed earlier, screw up other headers. */
578 f = fdopen(fd, "wb");
580 if (from != NULL) fprintf(f, "From: %s\n", from);
581 if (reply_to != NULL) fprintf(f, "Reply-To: %s\n", reply_to);
582 if (to != NULL) fprintf(f, "To: %s\n", to);
583 if (cc != NULL) fprintf(f, "Cc: %s\n", cc);
584 if (bcc != NULL) fprintf(f, "Bcc: %s\n", bcc);
585 if (subject != NULL) fprintf(f, "Subject: %s\n", subject);
587 /* Generate In-Reply-To from the message_id header; there should
588 always be one, but code defensively. */
590 for (h = header_list; h != NULL; h = h->next)
591 if (h->type == htype_id) break;
595 message_id = Ustrchr(h->text, ':') + 1;
596 while (isspace(*message_id)) message_id++;
597 fprintf(f, "In-Reply-To: %s", message_id);
600 /* Generate a References header if there is at least one of Message-ID:,
601 References:, or In-Reply-To: (see RFC 2822). */
603 for (h = header_list; h != NULL; h = h->next)
604 if (h->type != htype_old && strncmpic(US"References:", h->text, 11) == 0)
608 for (h = header_list; h != NULL; h = h->next)
609 if (h->type != htype_old && strncmpic(US"In-Reply-To:", h->text, 12) == 0)
612 /* We limit the total length of references. Although there is no fixed
613 limit, some systems do not like headers growing beyond recognition.
614 Keep the first message ID for the thread root and the last few for
615 the position inside the thread, up to a maximum of 12 altogether. */
617 if (h != NULL || message_id != NULL)
619 fprintf(f, "References:");
622 uschar *s, *id, *error;
623 uschar *referenced_ids[12];
624 int reference_count = 0;
627 s = Ustrchr(h->text, ':') + 1;
628 parse_allow_group = FALSE;
629 while (*s != 0 && (s = parse_message_id(s, &id, &error)) != NULL)
631 if (reference_count == sizeof(referenced_ids)/sizeof(uschar *))
633 memmove(referenced_ids + 1, referenced_ids + 2,
634 sizeof(referenced_ids) - 2*sizeof(uschar *));
635 referenced_ids[reference_count - 1] = id;
637 else referenced_ids[reference_count++] = id;
639 for (i = 0; i < reference_count; ++i) fprintf(f, " %s", referenced_ids[i]);
642 /* The message id will have a newline on the end of it. */
644 if (message_id != NULL) fprintf(f, " %s", message_id);
645 else fprintf(f, "\n");
648 /* Add an Auto-Submitted: header */
650 fprintf(f, "Auto-Submitted: auto-replied\n");
652 /* Add any specially requested headers */
654 if (headers != NULL) fprintf(f, "%s\n", headers);
659 fprintf(f, "%s", CS text);
660 if (text[Ustrlen(text)-1] != '\n') fprintf(f, "\n");
665 while (Ufgets(big_buffer, big_buffer_size, ff) != NULL)
669 uschar *s = expand_string(big_buffer);
673 debug_printf("error while expanding line from file:\n %s\n %s\n",
674 big_buffer, expand_string_message);
676 fprintf(f, "%s", (s == NULL)? CS big_buffer : CS s);
678 else fprintf(f, "%s", CS big_buffer);
683 /* Copy the original message if required, observing the return size
684 limit if we are returning the body. */
688 uschar *rubric = (tblock->headers_only)?
689 US"------ This is a copy of the message's header lines.\n"
690 : (tblock->body_only)?
691 US"------ This is a copy of the body of the message, without the headers.\n"
693 US"------ This is a copy of the message, including all the headers.\n";
694 transport_ctx tctx = {
699 (tblock->body_only ? topt_no_headers : 0) |
700 (tblock->headers_only ? topt_no_body : 0) |
701 (tblock->return_path_add ? topt_add_return_path : 0) |
702 (tblock->delivery_date_add ? topt_add_delivery_date : 0) |
703 (tblock->envelope_to_add ? topt_add_envelope_to : 0)
706 if (bounce_return_size_limit > 0 && !tblock->headers_only)
709 int max = (bounce_return_size_limit/DELIVER_IN_BUFFER_SIZE + 1) *
710 DELIVER_IN_BUFFER_SIZE;
711 if (fstat(deliver_datafile, &statbuf) == 0 && statbuf.st_size > max)
714 "------ The body of the message is " OFF_T_FMT " characters long; only the first\n"
715 "------ %d or so are included here.\n\n", rubric, statbuf.st_size,
718 else fprintf(f, "\n%s\n", rubric);
720 else fprintf(f, "\n%s\n", rubric);
724 transport_write_message(&tctx, bounce_return_size_limit);
727 /* End the message and wait for the child process to end; no timeout. */
730 rc = child_close(pid, 0);
732 /* Update the "sent to" log whatever the yield. This errs on the side of
733 missing out a message rather than risking sending more than one. We either have
734 cache_fd set to a fixed size, circular buffer file, or dbm_file set to an open
735 DBM file (or neither, if "once" is not set). */
737 /* Update fixed-size cache file. If cache_time is set, we found a previous
738 entry; that is the spot into which to put the current time. Otherwise we have
739 to add a new record; remove the first one in the file if the file is too big.
740 We always rewrite the entire file in a single write operation. This is
741 (hopefully) going to be the safest thing because there is no interlocking
742 between multiple simultaneous deliveries. */
746 uschar *from = cache_buff;
747 int size = cache_size;
748 (void)lseek(cache_fd, 0, SEEK_SET);
750 if (cache_time == NULL)
752 cache_time = from + size;
753 memcpy(cache_time + sizeof(time_t), to, add_size - sizeof(time_t));
756 if (cache_size > 0 && size > ob->once_file_size)
758 from += sizeof(time_t) + Ustrlen(from + sizeof(time_t)) + 1;
759 size -= (from - cache_buff);
763 memcpy(cache_time, &now, sizeof(time_t));
764 if(write(cache_fd, from, size) != size)
765 DEBUG(D_transport) debug_printf("Problem writing cache file %s for %s "
766 "transport\n", oncelog, tblock->name);
769 /* Update DBM file */
771 else if (dbm_file != NULL)
773 EXIM_DATUM key_datum, value_datum;
774 EXIM_DATUM_INIT(key_datum); /* Some DBM libraries need to have */
775 EXIM_DATUM_INIT(value_datum); /* cleared datums. */
776 EXIM_DATUM_DATA(key_datum) = CS to;
777 EXIM_DATUM_SIZE(key_datum) = Ustrlen(to) + 1;
779 /* Many OS define the datum value, sensibly, as a void *. However, there
780 are some which still have char *. By casting this address to a char * we
781 can avoid warning messages from the char * systems. */
783 EXIM_DATUM_DATA(value_datum) = CS (&now);
784 EXIM_DATUM_SIZE(value_datum) = (int)sizeof(time_t);
785 EXIM_DBPUT(dbm_file, key_datum, value_datum);
788 /* If sending failed, defer to try again - but if once is set the next
789 try will skip, of course. However, if there were no recipients in the
790 message, we do not fail. */
794 if (rc == EXIT_NORECIPIENTS)
796 DEBUG(D_any) debug_printf("%s transport: message contained no recipients\n",
801 addr->transport_return = DEFER;
802 addr->message = string_sprintf("Failed to send message from %s "
803 "transport (%d)", tblock->name, rc);
808 /* Log the sending of the message if successful and required. If the file
809 fails to open, it's hard to know what to do. We cannot write to the Exim
810 log from here, since we may be running under an unprivileged uid. We don't
811 want to fail the delivery, since the message has been successfully sent. For
812 the moment, ignore open failures. Write the log entry as a single write() to a
813 file opened for appending, in order to avoid interleaving of output from
814 different processes. The log_buffer can be used exactly as for main log
819 int log_fd = Uopen(logfile, O_WRONLY|O_APPEND|O_CREAT, ob->mode);
822 uschar *ptr = log_buffer;
823 DEBUG(D_transport) debug_printf("logging message details\n");
824 sprintf(CS ptr, "%s\n", tod_stamp(tod_log));
828 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
829 " From: %s\n", from);
834 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
840 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
846 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
852 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
853 " Subject: %s\n", subject);
858 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
862 if(write(log_fd, log_buffer, ptr - log_buffer) != ptr-log_buffer
864 DEBUG(D_transport) debug_printf("Problem writing log file %s for %s "
865 "transport\n", logfile, tblock->name);
867 else DEBUG(D_transport) debug_printf("Failed to open log file %s for %s "
868 "transport: %s\n", logfile, tblock->name, strerror(errno));
872 if (dbm_file != NULL) EXIM_DBCLOSE(dbm_file);
873 if (cache_fd > 0) (void)close(cache_fd);
875 DEBUG(D_transport) debug_printf("%s transport succeeded\n", tblock->name);
880 /* End of transport/autoreply.c */