* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) The Exim Maintainers 2020 - 2023 */
/* Copyright (c) University of Cambridge 1995 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
/* SPDX-License-Identifier: GPL-2.0-or-later */
*/
BOOL
-receive_check_set_sender(uschar *newsender)
+receive_check_set_sender(const uschar * newsender)
{
-uschar *qnewsender;
+const uschar * qnewsender;
if (f.trusted_caller) return TRUE;
if (!newsender || !untrusted_set_sender) return FALSE;
qnewsender = Ustrchr(newsender, '@')
*/
void
-receive_add_recipient(uschar * recipient, int pno)
+receive_add_recipient(const uschar * recipient, int pno)
{
if (recipients_count >= recipients_list_max)
{
{
int len = 3;
smtp_message_code(&code, &len, &user_msg, NULL, TRUE);
-smtp_respond(code, len, TRUE, user_msg);
+smtp_respond(code, len, SR_FINAL, user_msg);
}
#endif
*/
BOOL
-receive_remove_recipient(uschar *recipient)
+receive_remove_recipient(const uschar * recipient)
{
DEBUG(D_receive) debug_printf("receive_remove_recipient(\"%s\") called\n",
recipient);
#ifdef EXPERIMENTAL_DCC
dcc_ok = 0;
#endif
- smtp_respond(US"451", 3, TRUE, US"temporary local problem");
+ smtp_respond(US"451", 3, SR_FINAL, US"temporary local problem");
message_id[0] = 0; /* Indicate no message accepted */
*smtp_reply_ptr = US""; /* Indicate reply already sent */
return FALSE; /* Indicate skip to end of receive function */
sender_address,
sender_fullhost ? " H=" : "", sender_fullhost ? sender_fullhost : US"",
sender_ident ? " U=" : "", sender_ident ? sender_ident : US"");
- smtp_printf("552 Message header not CRLF terminated\r\n", FALSE);
+ smtp_printf("552 Message header not CRLF terminated\r\n", SP_NO_MORE);
bdat_flush_data();
smtp_reply = US"";
goto TIDYUP; /* Skip to end of function */
{
Uunlink(spool_name); /* Lose data file when closed */
cancel_cutthrough_connection(TRUE, US"sender closed connection");
- message_id[0] = 0; /* Indicate no message_accepted */
smtp_reply = handle_lost_connection(US"");
smtp_yield = FALSE;
- goto TIDYUP; /* Skip to end of function */
+ goto NOT_ACCEPTED; /* Skip to end of function */
}
break;
}
}
- log_write(0, LOG_MAIN|LOG_PANIC, "%s %s found in headers",
- message_id, bad_addresses ? "bad addresses" : "no recipients");
+ log_write(0, LOG_MAIN|LOG_PANIC, "%s found in headers",
+ bad_addresses ? "bad addresses" : "no recipients");
fseek(spool_data_file, (long int)spool_data_start_offset(message_id), SEEK_SET);
int all_pass = OK;
int all_fail = FAIL;
- smtp_printf("353 PRDR content analysis beginning\r\n", TRUE);
+ smtp_printf("353 PRDR content analysis beginning\r\n", SP_MORE);
/* Loop through recipients, responses must be in same order received */
for (unsigned int c = 0; recipients_count > c; c++)
{
- uschar * addr= recipients_list[c].address;
+ const uschar * addr = recipients_list[c].address;
uschar * msg= US"PRDR R=<%s> %s";
uschar * code;
DEBUG(D_receive)
/* Check the recipients count again, as the MIME ACL might have changed
them. */
- if (acl_smtp_data != NULL && recipients_count > 0)
+ if (acl_smtp_data && recipients_count > 0)
{
rc = acl_check(ACL_WHERE_DATA, NULL, acl_smtp_data, &user_msg, &log_msg);
add_acl_headers(ACL_WHERE_DATA, US"DATA");
if (smtp_input)
if (!smtp_batched_input)
{
- smtp_respond(smtp_code, 3, TRUE, errmsg);
+ smtp_respond(smtp_code, 3, SR_FINAL, errmsg);
smtp_reply = US""; /* Indicate reply already sent */
goto NOT_ACCEPTED; /* Skip to end of function */
}
receive_messagecount++;
-/* Add data size to written header size. We do not count the initial file name
-that is in the file, but we do add one extra for the notional blank line that
-precedes the data. This total differs from message_size in that it include the
-added Received: header and any other headers that got created locally. */
-
if (fflush(spool_data_file))
{
errmsg = string_sprintf("Spool write error: %s", strerror(errno));
/* Does not return */
}
}
-fstat(data_fd, &statbuf);
+/* Add data size to written header size. We do not count the initial file name
+that is in the file, but we do add one extra for the notional blank line that
+precedes the data. This total differs from message_size in that it include the
+added Received: header and any other headers that got created locally. */
+
+fstat(data_fd, &statbuf);
msg_size += statbuf.st_size - spool_data_start_offset(message_id) + 1;
/* Generate a "message received" log entry. We do this by building up a dynamic
#endif
{
log_write(0, LOG_MAIN |
- (LOGGING(received_recipients) ? LOG_RECIPIENTS : 0) |
- (LOGGING(received_sender) ? LOG_SENDER : 0),
- "%Y", g);
+ (LOGGING(received_recipients) ? LOG_RECIPIENTS : 0) |
+ (LOGGING(received_sender) ? LOG_SENDER : 0),
+ "%Y", g);
/* Log any control actions taken by an ACL or local_scan(). */
A fflush() was done earlier in the expectation that any write errors on the
data file will be flushed(!) out thereby. Nevertheless, it is theoretically
-possible for fclose() to fail - but what to do? What has happened to the lock
-if this happens? We can at least log it; if it is observed on some platform
-then we can think about properly declaring the message not-received. */
+possible for fclose() to fail - and this has been seen on obscure filesystems
+(probably one that delayed the actual media write as long as possible)
+but what to do? What has happened to the lock if this happens?
+It's a mes because we already logged the acceptance.
+We can at least log the issue, try to remove spoolfiles and respond with
+a temp-reject. We do not want to close before logging acceptance because
+we want to hold the lock until we know that logging worked.
+Could we make this less likely by doing an fdatasync() just after the fflush()?
+That seems like a good thing on data-security grounds, but how much will it hit
+performance? */
goto TIDYUP;
if (spool_data_file && cutthrough_done == NOT_TRIED)
{
if (fclose(spool_data_file)) /* Frees the lock */
- log_write(0, LOG_MAIN|LOG_PANIC,
- "spoolfile error on close: %s", strerror(errno));
+ {
+ log_msg = string_sprintf("spoolfile error on close: %s", strerror(errno));
+ log_write(0, LOG_MAIN|LOG_PANIC |
+ (LOGGING(received_recipients) ? LOG_RECIPIENTS : 0) |
+ (LOGGING(received_sender) ? LOG_SENDER : 0),
+ "%s", log_msg);
+ log_write(0, LOG_MAIN |
+ (LOGGING(received_recipients) ? LOG_RECIPIENTS : 0) |
+ (LOGGING(received_sender) ? LOG_SENDER : 0),
+ "rescind the above message-accept");
+
+ Uunlink(spool_name);
+ Uunlink(spool_fname(US"input", message_subdir, message_id, US"-H"));
+ Uunlink(spool_fname(US"msglog", message_subdir, message_id, US""));
+
+ /* Claim a data ACL temp-reject, just to get reject logging and resposponse */
+ smtp_handle_acl_fail(ACL_WHERE_DATA, rc, NULL, log_msg);
+ smtp_reply = US""; /* Indicate reply already sent */
+
+ message_id[0] = 0; /* no message accepted */
+ }
spool_data_file = NULL;
}
{
if (fake_response != OK)
smtp_respond(fake_response == DEFER ? US"450" : US"550",
- 3, TRUE, fake_response_text);
+ 3, SR_FINAL, fake_response_text);
/* An OK response is required; use "message" text if present. */
uschar *code = US"250";
int len = 3;
smtp_message_code(&code, &len, &user_msg, NULL, TRUE);
- smtp_respond(code, len, TRUE, user_msg);
+ smtp_respond(code, len, SR_FINAL, user_msg);
}
/* Default OK response */
else if (smtp_reply[0] != 0)
if (fake_response != OK && smtp_reply[0] == '2')
- smtp_respond(fake_response == DEFER ? US"450" : US"550", 3, TRUE,
- fake_response_text);
+ smtp_respond(fake_response == DEFER ? US"450" : US"550",
+ 3, SR_FINAL, fake_response_text);
else
- smtp_printf("%.1024s\r\n", FALSE, smtp_reply);
+ smtp_printf("%.1024s\r\n", SP_NO_MORE, smtp_reply);
switch (cutthrough_done)
{