-/* $Cambridge: exim/src/src/receive.c,v 1.15 2005/04/07 15:40:50 ph10 Exp $ */
+/* $Cambridge: exim/src/src/receive.c,v 1.27 2006/03/06 16:05:12 ph10 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2006 */
/* See the file NOTICE for conditions of use and distribution. */
/* Code for receiving a message and setting up spool files. */
/* Now close the file if it is open, either as a fd or a stream. */
-if (data_file != NULL) fclose(data_file);
- else if (data_fd >= 0) close(data_fd);
+if (data_file != NULL) (void)fclose(data_file);
+ else if (data_fd >= 0) (void)close(data_fd);
/* Attempt to close down an SMTP connection tidily. */
error_rc = EXIT_FAILURE;
}
else fprintf(stderr, "exim: %s%s\n", text2, text1); /* Sic */
-fclose(f);
+(void)fclose(f);
exim_exit(error_rc);
}
header_line *h, *next;
header_line *last_received = NULL;
-if (acl_warn_headers == NULL) return;
+if (acl_added_headers == NULL) return;
DEBUG(D_receive|D_acl) debug_printf(">>Headers added by %s ACL:\n", acl_name);
-for (h = acl_warn_headers; h != NULL; h = next)
+for (h = acl_added_headers; h != NULL; h = next)
{
next = h->next;
DEBUG(D_receive|D_acl) debug_printf(" %s", header_last->text);
}
-acl_warn_headers = NULL;
+acl_added_headers = NULL;
DEBUG(D_receive|D_acl) debug_printf(">>\n");
}
MIME_ACL_CHECK:
mime_part_count = -1;
rc = mime_acl_check(acl, mbox_file, NULL, &user_msg, &log_msg);
-fclose(mbox_file);
+(void)fclose(mbox_file);
if (Ustrlen(rfc822_file_path) > 0) {
mime_part_count = mime_part_count_buffer;
struct dirent *entry;
DIR *tempdir;
- snprintf(CS temp_path, 1024, "%s/scan/%s", spool_directory, message_id);
+ (void)string_format(temp_path, 1024, "%s/scan/%s", spool_directory,
+ message_id);
tempdir = opendir(CS temp_path);
n = 0;
entry = readdir(tempdir);
if (entry == NULL) break;
if (strncmpic(US entry->d_name,US"__rfc822_",9) == 0) {
- snprintf(CS rfc822_file_path, 2048,"%s/scan/%s/%s", spool_directory, message_id, entry->d_name);
+ (void)string_format(rfc822_file_path, 2048,"%s/scan/%s/%s", spool_directory, message_id, entry->d_name);
debug_printf("RFC822 attachment detected: running MIME ACL for '%s'\n", rfc822_file_path);
break;
};
closedir(tempdir);
if (entry != NULL) {
- mbox_file = Ufopen(rfc822_file_path,"r");
+ mbox_file = Ufopen(rfc822_file_path,"rb");
if (mbox_file == NULL) {
log_write(0, LOG_PANIC,
"acl_smtp_mime: can't open RFC822 spool file, skipping.");
Either a non-null list of recipients, or the extract flag will be true, or
both. The flag sender_local is true for locally generated messages. The flag
submission_mode is true if an ACL has obeyed "control = submission". The flag
-smtp_input is true if the message is to be handled using SMTP conventions about
-termination and lines starting with dots. For non-SMTP messages, dot_ends is
-true for dot-terminated messages.
+suppress_local_fixups is true if an ACL has obeyed "control =
+suppress_local_fixups". The flag smtp_input is true if the message is to be
+handled using SMTP conventions about termination and lines starting with dots.
+For non-SMTP messages, dot_ends is true for dot-terminated messages.
If a message was successfully read, message_id[0] will be non-zero.
header_line *h, *next;
-/* Flags for noting the existence of certain headers */
-
-/**** No longer check for these (Nov 2003)
-BOOL to_or_cc_header_exists = FALSE;
-BOOL bcc_header_exists = FALSE;
-****/
+/* Flags for noting the existence of certain headers (only one left) */
BOOL date_header_exists = FALSE;
if (thismessage_size_limit <= 0) thismessage_size_limit = INT_MAX;
-/* While reading the message, body_linecount and body_zerocount is computed.
-The full message_ linecount is set up only when the headers are read back in
-from the spool for delivery. */
+/* While reading the message, the following counts are computed. */
-body_linecount = body_zerocount = 0;
+message_linecount = body_linecount = body_zerocount = 0;
#ifdef EXPERIMENTAL_DOMAINKEYS
/* Call into DK to set up the context. Check if DK is to be run are carried out
/* End of header line reached */
EOL:
- receive_linecount++; /* For BSMTP errors */
+
+ /* Keep track of lines for BSMTP errors and overall message_linecount. */
+
+ receive_linecount++;
+ message_linecount++;
/* Now put in the terminating newline. There is always space for
at least two more characters. */
switch (header_checkname(h, is_resent))
{
- /* "Bcc:" gets flagged, and its existence noted, whether it's resent- or
- not. */
-
case htype_bcc:
- h->type = htype_bcc;
- /****
- bcc_header_exists = TRUE;
- ****/
+ h->type = htype_bcc; /* Both Bcc: and Resent-Bcc: */
break;
- /* "Cc:" gets flagged, and the existence of a recipient header is noted,
- whether it's resent- or not. */
-
case htype_cc:
- h->type = htype_cc;
- /****
- to_or_cc_header_exists = TRUE;
- ****/
+ h->type = htype_cc; /* Both Cc: and Resent-Cc: */
break;
/* Record whether a Date: or Resent-Date: header exists, as appropriate. */
break;
/* If there is a "Sender:" header and the message is locally originated,
- and from an untrusted caller, or if we are in submission mode for a remote
- message, mark it "old" so that it will not be transmitted with the message,
- unless active_local_sender_retain is set. (This can only be true if
- active_local_from_check is false.) If there are any resent- headers in the
- message, apply this rule to Resent-Sender: instead of Sender:. Messages
- with multiple resent- header sets cannot be tidily handled. (For this
- reason, at least one MUA - Pine - turns old resent- headers into X-resent-
- headers when resending, leaving just one set.) */
+ and from an untrusted caller and suppress_local_fixups is not set, or if we
+ are in submission mode for a remote message, mark it "old" so that it will
+ not be transmitted with the message, unless active_local_sender_retain is
+ set. (This can only be true if active_local_from_check is false.) If there
+ are any resent- headers in the message, apply this rule to Resent-Sender:
+ instead of Sender:. Messages with multiple resent- header sets cannot be
+ tidily handled. (For this reason, at least one MUA - Pine - turns old
+ resent- headers into X-resent- headers when resending, leaving just one
+ set.) */
case htype_sender:
h->type = ((!active_local_sender_retain &&
- ((sender_local && !trusted_caller) || submission_mode)
+ (
+ (sender_local && !trusted_caller && !suppress_local_fixups)
+ || submission_mode
+ )
) &&
(!resents_exist||is_resent))?
htype_old : htype_sender;
will be kept on the spool, but not transmitted as part of the
message. */
- if (h->type == htype_bcc)
- {
- h->type = htype_old;
- /****
- bcc_header_exists = FALSE;
- ****/
- }
+ if (h->type == htype_bcc) h->type = htype_old;
} /* For appropriate header line */
} /* For each header line */
message_subdir[0] = split_spool_directory? message_id[5] : 0;
/* Now that we have the message-id, if there is no message-id: header, generate
-one, but only for local or submission mode messages. This can be
-user-configured if required, but we had better flatten any illegal characters
-therein. */
+one, but only for local (without suppress_local_fixups) or submission mode
+messages. This can be user-configured if required, but we had better flatten
+any illegal characters therein. */
-if (msgid_header == NULL && (sender_host_address == NULL || submission_mode))
+if (msgid_header == NULL &&
+ ((sender_host_address == NULL && !suppress_local_fixups)
+ || submission_mode))
{
uschar *p;
uschar *id_text = US"";
rewrite_address(recipients_list[i].address, TRUE, TRUE,
global_rewrite_rules, rewrite_existflags);
-/* If there is no From: header, generate one for local or submission_mode
-messages. If there is no sender address, but the sender is local or this is a
-local delivery error, use the originator login. This shouldn't happen for
-genuine bounces, but might happen for autoreplies. The addition of From: must
-be done *before* checking for the possible addition of a Sender: header,
-because untrusted_set_sender allows an untrusted user to set anything in the
-envelope (which might then get info From:) but we still want to ensure a valid
-Sender: if it is required. */
-
-if (from_header == NULL && (sender_host_address == NULL || submission_mode))
+/* If there is no From: header, generate one for local (without
+suppress_local_fixups) or submission_mode messages. If there is no sender
+address, but the sender is local or this is a local delivery error, use the
+originator login. This shouldn't happen for genuine bounces, but might happen
+for autoreplies. The addition of From: must be done *before* checking for the
+possible addition of a Sender: header, because untrusted_set_sender allows an
+untrusted user to set anything in the envelope (which might then get info
+From:) but we still want to ensure a valid Sender: if it is required. */
+
+if (from_header == NULL &&
+ ((sender_host_address == NULL && !suppress_local_fixups)
+ || submission_mode))
{
+ uschar *oname = US"";
+
+ /* Use the originator_name if this is a locally submitted message and the
+ caller is not trusted. For trusted callers, use it only if -F was used to
+ force its value or if we have a non-SMTP message for which -f was not used
+ to set the sender. */
+
+ if (sender_host_address == NULL)
+ {
+ if (!trusted_caller || sender_name_forced ||
+ (!smtp_input && !sender_address_forced))
+ oname = originator_name;
+ }
+
+ /* For non-locally submitted messages, the only time we use the originator
+ name is when it was forced by the /name= option on control=submission. */
+
+ else
+ {
+ if (submission_name != NULL) oname = submission_name;
+ }
+
/* Envelope sender is empty */
if (sender_address[0] == 0)
{
+ uschar *fromstart, *fromend;
+
+ fromstart = string_sprintf("%sFrom: %s%s", resent_prefix,
+ oname, (oname[0] == 0)? "" : " <");
+ fromend = (oname[0] == 0)? US"" : US">";
+
if (sender_local || local_error_message)
{
- header_add(htype_from, "%sFrom: %s%s%s@%s%s\n", resent_prefix,
- originator_name,
- (originator_name[0] == 0)? "" : " <",
- local_part_quote(originator_login),
- qualify_domain_sender,
- (originator_name[0] == 0)? "" : ">");
+ header_add(htype_from, "%s%s@%s%s\n", fromstart,
+ local_part_quote(originator_login), qualify_domain_sender,
+ fromend);
}
else if (submission_mode && authenticated_id != NULL)
{
if (submission_domain == NULL)
{
- header_add(htype_from, "%sFrom: %s@%s\n", resent_prefix,
- local_part_quote(authenticated_id), qualify_domain_sender);
+ header_add(htype_from, "%s%s@%s%s\n", fromstart,
+ local_part_quote(authenticated_id), qualify_domain_sender,
+ fromend);
}
else if (submission_domain[0] == 0) /* empty => whole address set */
{
- header_add(htype_from, "%sFrom: %s\n", resent_prefix,
- authenticated_id);
+ header_add(htype_from, "%s%s%s\n", fromstart, authenticated_id,
+ fromend);
}
else
{
- header_add(htype_from, "%sFrom: %s@%s\n", resent_prefix,
- local_part_quote(authenticated_id), submission_domain);
+ header_add(htype_from, "%s%s@%s%s\n", fromstart,
+ local_part_quote(authenticated_id), submission_domain,
+ fromend);
}
from_header = header_last; /* To get it checked for Sender: */
}
else
{
- if (!smtp_input || sender_local)
- header_add(htype_from, "%sFrom: %s%s%s%s\n",
- resent_prefix, originator_name,
- (originator_name[0] == 0)? "" : " <",
- (sender_address_unrewritten == NULL)?
- sender_address : sender_address_unrewritten,
- (originator_name[0] == 0)? "" : ">");
- else
- header_add(htype_from, "%sFrom: %s\n", resent_prefix, sender_address);
+ header_add(htype_from, "%sFrom: %s%s%s%s\n", resent_prefix,
+ oname,
+ (oname[0] == 0)? "" : " <",
+ (sender_address_unrewritten == NULL)?
+ sender_address : sender_address_unrewritten,
+ (oname[0] == 0)? "" : ">");
from_header = header_last; /* To get it checked for Sender: */
}
}
-/* If the sender is local, or if we are in submission mode and there is an
-authenticated_id, check that an existing From: is correct, and if not, generate
-a Sender: header, unless disabled. Any previously-existing Sender: header was
-removed above. Note that sender_local, as well as being TRUE if the caller of
-exim is not trusted, is also true if a trusted caller did not supply a -f
-argument for non-smtp input. To allow trusted callers to forge From: without
-supplying -f, we have to test explicitly here. If the From: header contains
-more than one address, then the call to parse_extract_address fails, and a
-Sender: header is inserted, as required. */
+/* If the sender is local (without suppress_local_fixups), or if we are in
+submission mode and there is an authenticated_id, check that an existing From:
+is correct, and if not, generate a Sender: header, unless disabled. Any
+previously-existing Sender: header was removed above. Note that sender_local,
+as well as being TRUE if the caller of exim is not trusted, is also true if a
+trusted caller did not supply a -f argument for non-smtp input. To allow
+trusted callers to forge From: without supplying -f, we have to test explicitly
+here. If the From: header contains more than one address, then the call to
+parse_extract_address fails, and a Sender: header is inserted, as required. */
if (from_header != NULL &&
(active_local_from_check &&
- ((sender_local && !trusted_caller) ||
+ ((sender_local && !trusted_caller && !suppress_local_fixups) ||
(submission_mode && authenticated_id != NULL))
))
{
if (make_sender)
{
- if (submission_mode)
+ if (submission_mode && submission_name == NULL)
header_add(htype_sender, "%sSender: %s\n", resent_prefix,
generated_sender_address);
else
header_add(htype_sender, "%sSender: %s <%s>\n",
- resent_prefix, originator_name, generated_sender_address);
+ resent_prefix,
+ submission_mode? submission_name : originator_name,
+ generated_sender_address);
+ }
+
+ /* Ensure that a non-null envelope sender address corresponds to the
+ submission mode sender address. */
+
+ if (submission_mode && sender_address[0] != 0)
+ {
+ if (sender_address_unrewritten == NULL)
+ sender_address_unrewritten = sender_address;
+ sender_address = generated_sender_address;
+ log_write(L_address_rewrite, LOG_MAIN,
+ "\"%s\" from env-from rewritten as \"%s\" by submission mode",
+ sender_address_unrewritten, generated_sender_address);
}
}
/* An RFC 822 (sic) message is not legal unless it has at least one of "to",
-"cc", or "bcc". Note that although the minimal examples in RFC822 show just
+"cc", or "bcc". Note that although the minimal examples in RFC 822 show just
"to" or "bcc", the full syntax spec allows "cc" as well. If any resent- header
exists, this applies to the set of resent- headers rather than the normal set.
-The requirement for a recipient header has been removed in RFC 2822. Earlier
-versions of Exim added a To: header for locally submitted messages, and an
-empty Bcc: header for others or when always_bcc was set. In the light of the
-changes in RFC 2822, we now always add Bcc: just in case there are still MTAs
-out there that insist on the RFC 822 syntax.
-
-November 2003: While generally revising what Exim does to fix up headers, it
-seems like a good time to remove this altogether. */
+The requirement for a recipient header has been removed in RFC 2822. At this
+point in the code, earlier versions of Exim added a To: header for locally
+submitted messages, and an empty Bcc: header for others. In the light of the
+changes in RFC 2822, this was dropped in November 2003. */
-/******
-if (!to_or_cc_header_exists && !bcc_header_exists)
- header_add(htype_bcc, "Bcc:\n");
-******/
/* If there is no date header, generate one if the message originates locally
-(i.e. not over TCP/IP) or the submission mode flag is set. Messages without
-Date: are not valid, but it seems to be more confusing if Exim adds one to
-all remotely-originated messages. */
+(i.e. not over TCP/IP) and suppress_local_fixups is not set, or if the
+submission mode flag is set. Messages without Date: are not valid, but it seems
+to be more confusing if Exim adds one to all remotely-originated messages. */
-if (!date_header_exists && (sender_host_address == NULL || submission_mode))
+if (!date_header_exists &&
+ ((sender_host_address == NULL && !suppress_local_fixups)
+ || submission_mode))
header_add(htype_other, "%sDate: %s\n", resent_prefix, tod_stamp(tod_full));
search_tidyup(); /* Free any cached resources */
/* Make sure the file's group is the Exim gid, and double-check the mode
because the group setting doesn't always get set automatically. */
-fchown(data_fd, exim_uid, exim_gid);
-fchmod(data_fd, SPOOL_MODE);
+(void)fchown(data_fd, exim_uid, exim_gid);
+(void)fchmod(data_fd, SPOOL_MODE);
/* We now have data file open. Build a stream for it and lock it. We lock only
the first line of the file (containing the message ID) because otherwise there
{
uschar *s = next->text;
int len = next->slen;
- fwrite(s, 1, len, data_file);
+ (void)fwrite(s, 1, len, data_file);
body_linecount++; /* Assumes only 1 line */
}
else message_ended = read_message_data(data_file);
receive_linecount += body_linecount; /* For BSMTP errors mainly */
+ message_linecount += body_linecount;
/* Handle premature termination of SMTP */
if (recipients_count == 0 || error_handling == ERRORS_STDERR)
{
Uunlink(spool_name);
- fclose(data_file);
+ (void)fclose(data_file);
exim_exit(error_rc);
}
}
{
log_write(0, LOG_MAIN|LOG_PANIC, "Couldn't fdopen message log %s: %s",
spool_name, strerror(errno));
- close(fd);
+ (void)close(fd);
}
else
{
frozen_by);
if (queue_only_policy) fprintf(message_log,
"%s no immediate delivery: queued by %s\n", now, queued_by);
- fclose(message_log);
+ (void)fclose(message_log);
}
}
}
if this happens? */
TIDYUP:
-process_info[process_info_len] = 0; /* Remove message id */
-if (data_file != NULL) fclose(data_file); /* Frees the lock */
+process_info[process_info_len] = 0; /* Remove message id */
+if (data_file != NULL) (void)fclose(data_file); /* Frees the lock */
/* Now reset signal handlers to their defaults */
{
if (smtp_reply == NULL)
{
- if (fake_reject)
- smtp_respond(550,TRUE,fake_reject_text);
+ if (fake_response != OK)
+ smtp_respond(fake_response == DEFER ? 450 : 550,
+ TRUE, fake_response_text);
else
smtp_printf("250 OK id=%s\r\n", message_id);
if (host_checking)
}
else if (smtp_reply[0] != 0)
{
- if (fake_reject && (smtp_reply[0] == '2'))
- smtp_respond(550,TRUE,fake_reject_text);
+ if (fake_response != OK && (smtp_reply[0] == '2'))
+ smtp_respond(fake_response == DEFER ? 450 : 550,
+ TRUE, fake_response_text);
else
smtp_printf("%.1024s\r\n", smtp_reply);
}
git://git.exim.org / exim.git / blobdiff