1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
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)
157 uschar *ss = expand_string(s);
161 addr->transport_return = FAIL;
162 addr->message = string_sprintf("Expansion of \"%s\" failed in %s transport: "
163 "%s", s, name, expand_string_message);
167 if (type != cke_text) for (uschar * t = ss; *t != 0; t++)
171 if (mac_isprint(c)) continue;
172 if (type == cke_hdr && c == '\n' && (t[1] == ' ' || t[1] == '\t')) continue;
173 sp = string_printing(s);
174 addr->transport_return = FAIL;
175 addr->message = string_sprintf("Expansion of \"%s\" in %s transport "
176 "contains non-printing character %d", sp, name, c);
186 /*************************************************
187 * Check a header line for never_mail *
188 *************************************************/
190 /* This is called to check to, cc, and bcc for addresses in the never_mail
191 list. Any that are found are removed.
194 listptr points to the list of addresses
195 never_mail an address list, already expanded
201 check_never_mail(uschar **listptr, const uschar *never_mail)
203 uschar *s = *listptr;
207 uschar *error, *next;
208 uschar *e = parse_find_address_end(s, FALSE);
210 int start, end, domain, rc;
212 /* Temporarily terminate the string at the address end while extracting
213 the operative address within. */
216 next = parse_extract_address(s, &error, &start, &end, &domain, FALSE);
219 /* If there is some kind of syntax error, just give up on this header
222 if (next == NULL) break;
224 /* See if the address is on the never_mail list */
226 rc = match_address_list(next, /* address to check */
227 TRUE, /* start caseless */
228 FALSE, /* don't expand the list */
229 &never_mail, /* the list */
230 NULL, /* no caching */
231 -1, /* no expand setup */
232 0, /* separator from list */
233 NULL); /* no lookup value return */
235 if (rc == OK) /* Remove this address */
238 debug_printf("discarding recipient %s (matched never_mail)\n", next);
239 if (terminator == ',') e++;
240 memmove(s, e, Ustrlen(e) + 1);
242 else /* Skip over this address */
245 if (terminator == ',') s++;
249 /* Check to see if we removed the last address, leaving a terminating comma
250 that needs to be removed */
252 s = *listptr + Ustrlen(*listptr);
253 while (s > *listptr && (isspace(s[-1]) || s[-1] == ',')) s--;
256 /* Check to see if there any addresses left; if not, set NULL */
259 while (s != 0 && isspace(*s)) s++;
260 if (*s == 0) *listptr = NULL;
265 /*************************************************
267 *************************************************/
269 /* See local README for interface details. This transport always returns
270 FALSE, indicating that the top address has the status for all - though in fact
271 this transport can handle only one address at at time anyway. */
274 autoreply_transport_entry(
275 transport_instance *tblock, /* data for this instantiation */
276 address_item *addr) /* address we are working on */
282 EXIM_DB *dbm_file = NULL;
283 BOOL file_expand, return_message;
284 uschar *from, *reply_to, *to, *cc, *bcc, *subject, *headers, *text, *file;
285 uschar *logfile, *oncelog;
286 uschar *cache_buff = NULL;
287 uschar *cache_time = NULL;
288 uschar *message_id = NULL;
290 time_t now = time(NULL);
291 time_t once_repeat_sec = 0;
295 autoreply_transport_options_block *ob =
296 (autoreply_transport_options_block *)(tblock->options_block);
298 DEBUG(D_transport) debug_printf("%s transport entered\n", tblock->name);
300 /* Set up for the good case */
302 addr->transport_return = OK;
303 addr->basic_errno = 0;
305 /* If the address is pointing to a reply block, then take all the data
306 from that block. It has typically been set up by a mail filter processing
307 router. Otherwise, the data must be supplied by this transport, and
308 it has to be expanded here. */
310 if (addr->reply != NULL)
312 DEBUG(D_transport) debug_printf("taking data from address\n");
313 from = addr->reply->from;
314 reply_to = addr->reply->reply_to;
315 to = addr->reply->to;
316 cc = addr->reply->cc;
317 bcc = addr->reply->bcc;
318 subject = addr->reply->subject;
319 headers = addr->reply->headers;
320 text = addr->reply->text;
321 file = addr->reply->file;
322 logfile = addr->reply->logfile;
323 oncelog = addr->reply->oncelog;
324 once_repeat_sec = addr->reply->once_repeat;
325 file_expand = addr->reply->file_expand;
326 expand_forbid = addr->reply->expand_forbid;
327 return_message = addr->reply->return_message;
331 uschar *oncerepeat = ob->once_repeat;
333 DEBUG(D_transport) debug_printf("taking data from transport\n");
335 reply_to = ob->reply_to;
339 subject = ob->subject;
340 headers = ob->headers;
343 logfile = ob->logfile;
344 oncelog = ob->oncelog;
345 file_expand = ob->file_expand;
346 return_message = ob->return_message;
348 if ( from && !(from = checkexpand(from, addr, tblock->name, cke_hdr))
349 || reply_to && !(reply_to = checkexpand(reply_to, addr, tblock->name, cke_hdr))
350 || to && !(to = checkexpand(to, addr, tblock->name, cke_hdr))
351 || cc && !(cc = checkexpand(cc, addr, tblock->name, cke_hdr))
352 || bcc && !(bcc = checkexpand(bcc, addr, tblock->name, cke_hdr))
353 || subject && !(subject = checkexpand(subject, addr, tblock->name, cke_hdr))
354 || headers && !(headers = checkexpand(headers, addr, tblock->name, cke_text))
355 || text && !(text = checkexpand(text, addr, tblock->name, cke_text))
356 || file && !(file = checkexpand(file, addr, tblock->name, cke_file))
357 || logfile && !(logfile = checkexpand(logfile, addr, tblock->name, cke_file))
358 || oncelog && !(oncelog = checkexpand(oncelog, addr, tblock->name, cke_file))
359 || oncerepeat && !(oncerepeat = checkexpand(oncerepeat, addr, tblock->name, cke_file))
365 once_repeat_sec = readconf_readtime(oncerepeat, 0, FALSE);
366 if (once_repeat_sec < 0)
368 addr->transport_return = FAIL;
369 addr->message = string_sprintf("Invalid time value \"%s\" for "
370 "\"once_repeat\" in %s transport", oncerepeat, tblock->name);
376 /* If the never_mail option is set, we have to scan all the recipients and
377 remove those that match. */
381 const uschar *never_mail = expand_string(ob->never_mail);
385 addr->transport_return = FAIL;
386 addr->message = string_sprintf("Failed to expand \"%s\" for "
387 "\"never_mail\" in %s transport", ob->never_mail, tblock->name);
391 if (to) check_never_mail(&to, never_mail);
392 if (cc) check_never_mail(&cc, never_mail);
393 if (bcc) check_never_mail(&bcc, never_mail);
395 if (!to && !cc && !bcc)
398 debug_printf("*** all recipients removed by never_mail\n");
403 /* If the -N option is set, can't do any more. */
408 debug_printf("*** delivery by %s transport bypassed by -N option\n",
414 /* If the oncelog field is set, we send want to send only one message to the
415 given recipient(s). This works only on the "To" field. If there is no "To"
416 field, the message is always sent. If the To: field contains more than one
417 recipient, the effect might not be quite as envisaged. If once_file_size is
418 set, instead of a dbm file, we use a regular file containing a circular buffer
421 if (oncelog && *oncelog != 0 && to)
425 /* Handle fixed-size cache file. */
427 if (ob->once_file_size > 0)
431 cache_fd = Uopen(oncelog, O_CREAT|O_RDWR, ob->mode);
433 if (cache_fd < 0 || fstat(cache_fd, &statbuf) != 0)
435 addr->transport_return = DEFER;
436 addr->message = string_sprintf("Failed to %s \"once\" file %s when "
437 "sending message from %s transport: %s",
438 (cache_fd < 0)? "open" : "stat", oncelog, tblock->name,
443 /* Get store in the temporary pool and read the entire file into it. We get
444 an amount of store that is big enough to add the new entry on the end if we
447 cache_size = statbuf.st_size;
448 add_size = sizeof(time_t) + Ustrlen(to) + 1;
449 cache_buff = store_get(cache_size + add_size);
451 if (read(cache_fd, cache_buff, cache_size) != cache_size)
453 addr->transport_return = DEFER;
454 addr->basic_errno = errno;
455 addr->message = US"error while reading \"once\" file";
459 DEBUG(D_transport) debug_printf("%d bytes read from %s\n", cache_size, oncelog);
461 /* Scan the data for this recipient. Each entry in the file starts with
462 a time_t sized time value, followed by the address, followed by a binary
463 zero. If we find a match, put the time into "then", and the place where it
464 was found into "cache_time". Otherwise, "then" is left at zero. */
466 for (uschar * p = cache_buff; p < cache_buff + cache_size; p = nextp)
468 uschar *s = p + sizeof(time_t);
469 nextp = s + Ustrlen(s) + 1;
470 if (Ustrcmp(to, s) == 0)
472 memcpy(&then, p, sizeof(time_t));
479 /* Use a DBM file for the list of previous recipients. */
483 EXIM_DATUM key_datum, result_datum;
484 uschar * dirname = string_copy(oncelog);
487 if ((s = Ustrrchr(dirname, '/'))) *s = '\0';
488 EXIM_DBOPEN(oncelog, dirname, O_RDWR|O_CREAT, ob->mode, &dbm_file);
491 addr->transport_return = DEFER;
492 addr->message = string_sprintf("Failed to open %s file %s when sending "
493 "message from %s transport: %s", EXIM_DBTYPE, oncelog, tblock->name,
498 EXIM_DATUM_INIT(key_datum); /* Some DBM libraries need datums */
499 EXIM_DATUM_INIT(result_datum); /* to be cleared */
500 EXIM_DATUM_DATA(key_datum) = CS to;
501 EXIM_DATUM_SIZE(key_datum) = Ustrlen(to) + 1;
503 if (EXIM_DBGET(dbm_file, key_datum, result_datum))
505 /* If the datum size is that of a binary time, we are in the new world
506 where messages are sent periodically. Otherwise the file is an old one,
507 where the datum was filled with a tod_log time, which is assumed to be
508 different in size. For that, only one message is ever sent. This change
509 introduced at Exim 3.00. In a couple of years' time the test on the size
512 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 && !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);
571 if (dbm_file) EXIM_DBCLOSE(dbm_file);
575 /* Create the message to be sent - recipients are taken from the headers,
576 as the -t option is used. The "headers" stuff *must* be last in case there
577 are newlines in it which might, if placed earlier, screw up other headers. */
579 fp = fdopen(fd, "wb");
581 if (from) fprintf(fp, "From: %s\n", from);
582 if (reply_to) fprintf(fp, "Reply-To: %s\n", reply_to);
583 if (to) fprintf(fp, "To: %s\n", to);
584 if (cc) fprintf(fp, "Cc: %s\n", cc);
585 if (bcc) fprintf(fp, "Bcc: %s\n", bcc);
586 if (subject) fprintf(fp, "Subject: %s\n", subject);
588 /* Generate In-Reply-To from the message_id header; there should
589 always be one, but code defensively. */
591 for (h = header_list; h; h = h->next)
592 if (h->type == htype_id) break;
596 message_id = Ustrchr(h->text, ':') + 1;
597 while (isspace(*message_id)) message_id++;
598 fprintf(fp, "In-Reply-To: %s", message_id);
601 /* Generate a References header if there is at least one of Message-ID:,
602 References:, or In-Reply-To: (see RFC 2822). */
604 for (h = header_list; h; h = h->next)
605 if (h->type != htype_old && strncmpic(US"References:", h->text, 11) == 0)
609 for (h = header_list; h; h = h->next)
610 if (h->type != htype_old && strncmpic(US"In-Reply-To:", h->text, 12) == 0)
613 /* We limit the total length of references. Although there is no fixed
614 limit, some systems do not like headers growing beyond recognition.
615 Keep the first message ID for the thread root and the last few for
616 the position inside the thread, up to a maximum of 12 altogether. */
620 fprintf(fp, "References:");
623 uschar *s, *id, *error;
624 uschar *referenced_ids[12];
625 int reference_count = 0;
627 s = Ustrchr(h->text, ':') + 1;
628 f.parse_allow_group = FALSE;
629 while (*s != 0 && (s = parse_message_id(s, &id, &error)) != NULL)
631 if (reference_count == nelem(referenced_ids))
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 (int i = 0; i < reference_count; ++i) fprintf(fp, " %s", referenced_ids[i]);
642 /* The message id will have a newline on the end of it. */
644 if (message_id) fprintf(fp, " %s", message_id);
645 else fprintf(fp, "\n");
648 /* Add an Auto-Submitted: header */
650 fprintf(fp, "Auto-Submitted: auto-replied\n");
652 /* Add any specially requested headers */
654 if (headers) fprintf(fp, "%s\n", headers);
659 fprintf(fp, "%s", CS text);
660 if (text[Ustrlen(text)-1] != '\n') fprintf(fp, "\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(fp, "%s", s ? CS s : CS big_buffer);
678 else fprintf(fp, "%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 = {
695 .u = {.fd = fileno(fp)},
698 .check_string = NULL,
699 .escape_string = NULL,
700 .options = (tblock->body_only ? topt_no_headers : 0)
701 | (tblock->headers_only ? topt_no_body : 0)
702 | (tblock->return_path_add ? topt_add_return_path : 0)
703 | (tblock->delivery_date_add ? topt_add_delivery_date : 0)
704 | (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(fp, "\n%s\n", rubric);
722 else fprintf(fp, "\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 */