1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2017 */
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);
69 autoreply_transport_options_block autoreply_transport_option_defaults = {0};
70 void autoreply_transport_init(transport_instance *tblock) {}
71 BOOL autoreply_transport_entry(transport_instance *tblock, address_item *addr) {return FALSE;}
73 #else /*!MACRO_PREDEF*/
76 /* Default private options block for the autoreply transport. */
78 autoreply_transport_options_block autoreply_transport_option_defaults = {
90 NULL, /* once_repeat */
91 NULL, /* never_mail */
93 0, /* once_file_size */
94 FALSE, /* file_expand */
95 FALSE, /* file_optional */
96 FALSE /* return message */
101 /* Type of text for the checkexpand() function */
103 enum { cke_text, cke_hdr, cke_file };
107 /*************************************************
108 * Initialization entry point *
109 *************************************************/
111 /* Called for each instance, after its options have been read, to
112 enable consistency checks to be done, or anything else that needs
116 autoreply_transport_init(transport_instance *tblock)
119 autoreply_transport_options_block *ob =
120 (autoreply_transport_options_block *)(tblock->options_block);
123 /* If a fixed uid field is set, then a gid field must also be set. */
125 if (tblock->uid_set && !tblock->gid_set && tblock->expand_gid == NULL)
126 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
127 "user set without group for the %s transport", tblock->name);
133 /*************************************************
134 * Expand string and check *
135 *************************************************/
137 /* If the expansion fails, the error is set up in the address. Expanded
138 strings must be checked to ensure they contain only printing characters
139 and white space. If not, the function fails.
143 addr address that is being worked on
144 name transport name, for error text
145 type type, for checking content:
147 cke_hdr => header, allow \n + whitespace
148 cke_file => file name, no non-printers allowed
150 Returns: expanded string if expansion succeeds;
155 checkexpand(uschar *s, address_item *addr, uschar *name, int type)
158 uschar *ss = expand_string(s);
162 addr->transport_return = FAIL;
163 addr->message = string_sprintf("Expansion of \"%s\" failed in %s transport: "
164 "%s", s, name, expand_string_message);
168 if (type != cke_text) for (t = ss; *t != 0; t++)
172 if (mac_isprint(c)) continue;
173 if (type == cke_hdr && c == '\n' && (t[1] == ' ' || t[1] == '\t')) continue;
174 sp = string_printing(s);
175 addr->transport_return = FAIL;
176 addr->message = string_sprintf("Expansion of \"%s\" in %s transport "
177 "contains non-printing character %d", sp, name, c);
187 /*************************************************
188 * Check a header line for never_mail *
189 *************************************************/
191 /* This is called to check to, cc, and bcc for addresses in the never_mail
192 list. Any that are found are removed.
195 listptr points to the list of addresses
196 never_mail an address list, already expanded
202 check_never_mail(uschar **listptr, const uschar *never_mail)
204 uschar *s = *listptr;
208 uschar *error, *next;
209 uschar *e = parse_find_address_end(s, FALSE);
211 int start, end, domain, rc;
213 /* Temporarily terminate the string at the address end while extracting
214 the operative address within. */
217 next = parse_extract_address(s, &error, &start, &end, &domain, FALSE);
220 /* If there is some kind of syntax error, just give up on this header
223 if (next == NULL) break;
225 /* See if the address is on the never_mail list */
227 rc = match_address_list(next, /* address to check */
228 TRUE, /* start caseless */
229 FALSE, /* don't expand the list */
230 &never_mail, /* the list */
231 NULL, /* no caching */
232 -1, /* no expand setup */
233 0, /* separator from list */
234 NULL); /* no lookup value return */
236 if (rc == OK) /* Remove this address */
239 debug_printf("discarding recipient %s (matched never_mail)\n", next);
240 if (terminator == ',') e++;
241 memmove(s, e, Ustrlen(e) + 1);
243 else /* Skip over this address */
246 if (terminator == ',') s++;
250 /* Check to see if we removed the last address, leaving a terminating comma
251 that needs to be removed */
253 s = *listptr + Ustrlen(*listptr);
254 while (s > *listptr && (isspace(s[-1]) || s[-1] == ',')) s--;
257 /* Check to see if there any addresses left; if not, set NULL */
260 while (s != 0 && isspace(*s)) s++;
261 if (*s == 0) *listptr = NULL;
266 /*************************************************
268 *************************************************/
270 /* See local README for interface details. This transport always returns
271 FALSE, indicating that the top address has the status for all - though in fact
272 this transport can handle only one address at at time anyway. */
275 autoreply_transport_entry(
276 transport_instance *tblock, /* data for this instantiation */
277 address_item *addr) /* address we are working on */
283 EXIM_DB *dbm_file = NULL;
284 BOOL file_expand, return_message;
285 uschar *from, *reply_to, *to, *cc, *bcc, *subject, *headers, *text, *file;
286 uschar *logfile, *oncelog;
287 uschar *cache_buff = NULL;
288 uschar *cache_time = NULL;
289 uschar *message_id = NULL;
291 time_t now = time(NULL);
292 time_t once_repeat_sec = 0;
296 autoreply_transport_options_block *ob =
297 (autoreply_transport_options_block *)(tblock->options_block);
299 DEBUG(D_transport) debug_printf("%s transport entered\n", tblock->name);
301 /* Set up for the good case */
303 addr->transport_return = OK;
304 addr->basic_errno = 0;
306 /* If the address is pointing to a reply block, then take all the data
307 from that block. It has typically been set up by a mail filter processing
308 router. Otherwise, the data must be supplied by this transport, and
309 it has to be expanded here. */
311 if (addr->reply != NULL)
313 DEBUG(D_transport) debug_printf("taking data from address\n");
314 from = addr->reply->from;
315 reply_to = addr->reply->reply_to;
316 to = addr->reply->to;
317 cc = addr->reply->cc;
318 bcc = addr->reply->bcc;
319 subject = addr->reply->subject;
320 headers = addr->reply->headers;
321 text = addr->reply->text;
322 file = addr->reply->file;
323 logfile = addr->reply->logfile;
324 oncelog = addr->reply->oncelog;
325 once_repeat_sec = addr->reply->once_repeat;
326 file_expand = addr->reply->file_expand;
327 expand_forbid = addr->reply->expand_forbid;
328 return_message = addr->reply->return_message;
332 uschar *oncerepeat = ob->once_repeat;
334 DEBUG(D_transport) debug_printf("taking data from transport\n");
336 reply_to = ob->reply_to;
340 subject = ob->subject;
341 headers = ob->headers;
344 logfile = ob->logfile;
345 oncelog = ob->oncelog;
346 file_expand = ob->file_expand;
347 return_message = ob->return_message;
349 if ( from && !(from = checkexpand(from, addr, tblock->name, cke_hdr))
350 || reply_to && !(reply_to = checkexpand(reply_to, addr, tblock->name, cke_hdr))
351 || to && !(to = checkexpand(to, addr, tblock->name, cke_hdr))
352 || cc && !(cc = checkexpand(cc, addr, tblock->name, cke_hdr))
353 || bcc && !(bcc = checkexpand(bcc, addr, tblock->name, cke_hdr))
354 || subject && !(subject = checkexpand(subject, addr, tblock->name, cke_hdr))
355 || headers && !(headers = checkexpand(headers, addr, tblock->name, cke_text))
356 || text && !(text = checkexpand(text, addr, tblock->name, cke_text))
357 || file && !(file = checkexpand(file, addr, tblock->name, cke_file))
358 || logfile && !(logfile = checkexpand(logfile, addr, tblock->name, cke_file))
359 || oncelog && !(oncelog = checkexpand(oncelog, addr, tblock->name, cke_file))
360 || oncerepeat && !(oncerepeat = checkexpand(oncerepeat, addr, tblock->name, cke_file))
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. */
382 const uschar *never_mail = expand_string(ob->never_mail);
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) check_never_mail(&to, never_mail);
393 if (cc) check_never_mail(&cc, never_mail);
394 if (bcc) check_never_mail(&bcc, never_mail);
396 if (!to && !cc && !bcc)
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 && *oncelog != 0 && to)
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. */
467 for (p = cache_buff; p < cache_buff + cache_size; p = nextp)
469 uschar *s = p + sizeof(time_t);
470 nextp = s + Ustrlen(s) + 1;
471 if (Ustrcmp(to, s) == 0)
473 memcpy(&then, p, sizeof(time_t));
480 /* Use a DBM file for the list of previous recipients. */
484 EXIM_DATUM key_datum, result_datum;
485 uschar * dirname = string_copy(oncelog);
488 if ((s = Ustrrchr(dirname, '/'))) *s = '\0';
489 EXIM_DBOPEN(oncelog, dirname, O_RDWR|O_CREAT, ob->mode, &dbm_file);
492 addr->transport_return = DEFER;
493 addr->message = string_sprintf("Failed to open %s file %s when sending "
494 "message from %s transport: %s", EXIM_DBTYPE, oncelog, tblock->name,
499 EXIM_DATUM_INIT(key_datum); /* Some DBM libraries need datums */
500 EXIM_DATUM_INIT(result_datum); /* to be cleared */
501 EXIM_DATUM_DATA(key_datum) = CS to;
502 EXIM_DATUM_SIZE(key_datum) = Ustrlen(to) + 1;
504 if (EXIM_DBGET(dbm_file, key_datum, result_datum))
506 /* If the datum size is that of a binary time, we are in the new world
507 where messages are sent periodically. Otherwise the file is an old one,
508 where the datum was filled with a tod_log time, which is assumed to be
509 different in size. For that, only one message is ever sent. This change
510 introduced at Exim 3.00. In a couple of years' time the test on the size
513 if (EXIM_DATUM_SIZE(result_datum) == sizeof(time_t))
514 memcpy(&then, EXIM_DATUM_DATA(result_datum), sizeof(time_t));
520 /* Either "then" is set zero, if no message has yet been sent, or it
521 is set to the time of the last sending. */
523 if (then != 0 && (once_repeat_sec <= 0 || now - then < once_repeat_sec))
526 DEBUG(D_transport) debug_printf("message previously sent to %s%s\n", to,
527 (once_repeat_sec > 0)? " and repeat time not reached" : "");
528 log_fd = logfile ? Uopen(logfile, O_WRONLY|O_APPEND|O_CREAT, ob->mode) : -1;
531 uschar *ptr = log_buffer;
532 sprintf(CS ptr, "%s\n previously sent to %.200s\n", tod_stamp(tod_log), to);
534 if(write(log_fd, log_buffer, ptr - log_buffer) != ptr-log_buffer
536 DEBUG(D_transport) debug_printf("Problem writing log file %s for %s "
537 "transport\n", logfile, tblock->name);
542 DEBUG(D_transport) debug_printf("%s %s\n", (then <= 0)?
543 "no previous message sent to" : "repeat time reached for", to);
546 /* We are going to send a message. Ensure any requested file is available. */
550 ff = Ufopen(file, "rb");
551 if (!ff && !ob->file_optional)
553 addr->transport_return = DEFER;
554 addr->message = string_sprintf("Failed to open file %s when sending "
555 "message from %s transport: %s", file, tblock->name, strerror(errno));
560 /* Make a subprocess to send the message */
562 pid = child_open_exim(&fd);
564 /* Creation of child failed; defer this delivery. */
568 addr->transport_return = DEFER;
569 addr->message = string_sprintf("Failed to create child process to send "
570 "message from %s transport: %s", tblock->name, strerror(errno));
571 DEBUG(D_transport) debug_printf("%s\n", addr->message);
572 if (dbm_file) EXIM_DBCLOSE(dbm_file);
576 /* Create the message to be sent - recipients are taken from the headers,
577 as the -t option is used. The "headers" stuff *must* be last in case there
578 are newlines in it which might, if placed earlier, screw up other headers. */
580 f = fdopen(fd, "wb");
582 if (from) fprintf(f, "From: %s\n", from);
583 if (reply_to) fprintf(f, "Reply-To: %s\n", reply_to);
584 if (to) fprintf(f, "To: %s\n", to);
585 if (cc) fprintf(f, "Cc: %s\n", cc);
586 if (bcc) fprintf(f, "Bcc: %s\n", bcc);
587 if (subject) fprintf(f, "Subject: %s\n", subject);
589 /* Generate In-Reply-To from the message_id header; there should
590 always be one, but code defensively. */
592 for (h = header_list; h; h = h->next)
593 if (h->type == htype_id) break;
597 message_id = Ustrchr(h->text, ':') + 1;
598 while (isspace(*message_id)) message_id++;
599 fprintf(f, "In-Reply-To: %s", message_id);
602 /* Generate a References header if there is at least one of Message-ID:,
603 References:, or In-Reply-To: (see RFC 2822). */
605 for (h = header_list; h; h = h->next)
606 if (h->type != htype_old && strncmpic(US"References:", h->text, 11) == 0)
610 for (h = header_list; h; h = h->next)
611 if (h->type != htype_old && strncmpic(US"In-Reply-To:", h->text, 12) == 0)
614 /* We limit the total length of references. Although there is no fixed
615 limit, some systems do not like headers growing beyond recognition.
616 Keep the first message ID for the thread root and the last few for
617 the position inside the thread, up to a maximum of 12 altogether. */
621 fprintf(f, "References:");
624 uschar *s, *id, *error;
625 uschar *referenced_ids[12];
626 int reference_count = 0;
629 s = Ustrchr(h->text, ':') + 1;
630 parse_allow_group = FALSE;
631 while (*s != 0 && (s = parse_message_id(s, &id, &error)) != NULL)
633 if (reference_count == nelem(referenced_ids))
635 memmove(referenced_ids + 1, referenced_ids + 2,
636 sizeof(referenced_ids) - 2*sizeof(uschar *));
637 referenced_ids[reference_count - 1] = id;
639 else referenced_ids[reference_count++] = id;
641 for (i = 0; i < reference_count; ++i) fprintf(f, " %s", referenced_ids[i]);
644 /* The message id will have a newline on the end of it. */
646 if (message_id) fprintf(f, " %s", message_id);
647 else fprintf(f, "\n");
650 /* Add an Auto-Submitted: header */
652 fprintf(f, "Auto-Submitted: auto-replied\n");
654 /* Add any specially requested headers */
656 if (headers) fprintf(f, "%s\n", headers);
661 fprintf(f, "%s", CS text);
662 if (text[Ustrlen(text)-1] != '\n') fprintf(f, "\n");
667 while (Ufgets(big_buffer, big_buffer_size, ff) != NULL)
671 uschar *s = expand_string(big_buffer);
675 debug_printf("error while expanding line from file:\n %s\n %s\n",
676 big_buffer, expand_string_message);
678 fprintf(f, "%s", s ? CS s : CS big_buffer);
680 else fprintf(f, "%s", CS big_buffer);
685 /* Copy the original message if required, observing the return size
686 limit if we are returning the body. */
690 uschar *rubric = (tblock->headers_only)?
691 US"------ This is a copy of the message's header lines.\n"
692 : (tblock->body_only)?
693 US"------ This is a copy of the body of the message, without the headers.\n"
695 US"------ This is a copy of the message, including all the headers.\n";
696 transport_ctx tctx = {
701 (tblock->body_only ? topt_no_headers : 0) |
702 (tblock->headers_only ? topt_no_body : 0) |
703 (tblock->return_path_add ? topt_add_return_path : 0) |
704 (tblock->delivery_date_add ? topt_add_delivery_date : 0) |
705 (tblock->envelope_to_add ? topt_add_envelope_to : 0)
708 if (bounce_return_size_limit > 0 && !tblock->headers_only)
711 int max = (bounce_return_size_limit/DELIVER_IN_BUFFER_SIZE + 1) *
712 DELIVER_IN_BUFFER_SIZE;
713 if (fstat(deliver_datafile, &statbuf) == 0 && statbuf.st_size > max)
716 "------ The body of the message is " OFF_T_FMT " characters long; only the first\n"
717 "------ %d or so are included here.\n\n", rubric, statbuf.st_size,
720 else fprintf(f, "\n%s\n", rubric);
722 else fprintf(f, "\n%s\n", rubric);
726 transport_write_message(&tctx, bounce_return_size_limit);
729 /* End the message and wait for the child process to end; no timeout. */
732 rc = child_close(pid, 0);
734 /* Update the "sent to" log whatever the yield. This errs on the side of
735 missing out a message rather than risking sending more than one. We either have
736 cache_fd set to a fixed size, circular buffer file, or dbm_file set to an open
737 DBM file (or neither, if "once" is not set). */
739 /* Update fixed-size cache file. If cache_time is set, we found a previous
740 entry; that is the spot into which to put the current time. Otherwise we have
741 to add a new record; remove the first one in the file if the file is too big.
742 We always rewrite the entire file in a single write operation. This is
743 (hopefully) going to be the safest thing because there is no interlocking
744 between multiple simultaneous deliveries. */
748 uschar *from = cache_buff;
749 int size = cache_size;
751 if (lseek(cache_fd, 0, SEEK_SET) == 0)
755 cache_time = from + size;
756 memcpy(cache_time + sizeof(time_t), to, add_size - sizeof(time_t));
759 if (cache_size > 0 && size > ob->once_file_size)
761 from += sizeof(time_t) + Ustrlen(from + sizeof(time_t)) + 1;
762 size -= (from - cache_buff);
766 memcpy(cache_time, &now, sizeof(time_t));
767 if(write(cache_fd, from, size) != size)
768 DEBUG(D_transport) debug_printf("Problem writing cache file %s for %s "
769 "transport\n", oncelog, tblock->name);
773 /* Update DBM file */
777 EXIM_DATUM key_datum, value_datum;
778 EXIM_DATUM_INIT(key_datum); /* Some DBM libraries need to have */
779 EXIM_DATUM_INIT(value_datum); /* cleared datums. */
780 EXIM_DATUM_DATA(key_datum) = CS to;
781 EXIM_DATUM_SIZE(key_datum) = Ustrlen(to) + 1;
783 /* Many OS define the datum value, sensibly, as a void *. However, there
784 are some which still have char *. By casting this address to a char * we
785 can avoid warning messages from the char * systems. */
787 EXIM_DATUM_DATA(value_datum) = CS (&now);
788 EXIM_DATUM_SIZE(value_datum) = (int)sizeof(time_t);
789 EXIM_DBPUT(dbm_file, key_datum, value_datum);
792 /* If sending failed, defer to try again - but if once is set the next
793 try will skip, of course. However, if there were no recipients in the
794 message, we do not fail. */
797 if (rc == EXIT_NORECIPIENTS)
799 DEBUG(D_any) debug_printf("%s transport: message contained no recipients\n",
804 addr->transport_return = DEFER;
805 addr->message = string_sprintf("Failed to send message from %s "
806 "transport (%d)", tblock->name, rc);
810 /* Log the sending of the message if successful and required. If the file
811 fails to open, it's hard to know what to do. We cannot write to the Exim
812 log from here, since we may be running under an unprivileged uid. We don't
813 want to fail the delivery, since the message has been successfully sent. For
814 the moment, ignore open failures. Write the log entry as a single write() to a
815 file opened for appending, in order to avoid interleaving of output from
816 different processes. The log_buffer can be used exactly as for main log
821 int log_fd = Uopen(logfile, O_WRONLY|O_APPEND|O_CREAT, ob->mode);
824 uschar *ptr = log_buffer;
825 DEBUG(D_transport) debug_printf("logging message details\n");
826 sprintf(CS ptr, "%s\n", tod_stamp(tod_log));
830 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
831 " From: %s\n", from);
836 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
842 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
848 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
854 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
855 " Subject: %s\n", subject);
860 (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
864 if(write(log_fd, log_buffer, ptr - log_buffer) != ptr-log_buffer
866 DEBUG(D_transport) debug_printf("Problem writing log file %s for %s "
867 "transport\n", logfile, tblock->name);
869 else DEBUG(D_transport) debug_printf("Failed to open log file %s for %s "
870 "transport: %s\n", logfile, tblock->name, strerror(errno));
874 if (dbm_file) EXIM_DBCLOSE(dbm_file);
875 if (cache_fd > 0) (void)close(cache_fd);
877 DEBUG(D_transport) debug_printf("%s transport succeeded\n", tblock->name);
882 #endif /*!MACRO_PREDEF*/
883 /* End of transport/autoreply.c */