-/* $Cambridge: exim/src/src/smtp_in.c,v 1.46 2006/10/23 10:55:10 ph10 Exp $ */
+/* $Cambridge: exim/src/src/smtp_in.c,v 1.50 2007/01/15 15:59:22 ph10 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2006 */
+/* Copyright (c) University of Cambridge 1995 - 2007 */
/* See the file NOTICE for conditions of use and distribution. */
/* Functions for handling an incoming SMTP call. */
TOO_MANY_NONMAIL_CMD };
+/* This is a convenience macro for adding the identity of an SMTP command
+to the circular buffer that holds a list of the last n received. */
+
+#define HAD(n) \
+ smtp_connection_had[smtp_ch_index++] = n; \
+ if (smtp_ch_index >= SMTP_HBUFF_SIZE) smtp_ch_index = 0
+
/*************************************************
* Local static variables *
#define CMD_LIST_AUTH 3
#define CMD_LIST_STARTTLS 4
+/* This list of names is used for performing the smtp_no_mail logging action.
+It must be kept in step with the SCH_xxx enumerations. */
+
+static uschar *smtp_names[] =
+ {
+ US"NONE", US"AUTH", US"DATA", US"EHLO", US"ETRN", US"EXPN", US"HELO",
+ US"HELP", US"MAIL", US"NOOP", US"QUIT", US"RCPT", US"RSET", US"STARTTLS",
+ US"VRFY" };
+
static uschar *protocols[] = {
US"local-smtp", /* HELO */
US"local-smtps", /* The rare case EHLO->STARTTLS->HELO */
+/*************************************************
+* Log lack of MAIL if so configured *
+*************************************************/
+
+/* This function is called when an SMTP session ends. If the log selector
+smtp_no_mail is set, write a log line giving some details of what has happened
+in the SMTP session.
+
+Arguments: none
+Returns: nothing
+*/
+
+void
+smtp_log_no_mail(void)
+{
+int size, ptr, i;
+uschar *s, *sep;
+
+if (smtp_mailcmd_count > 0 || (log_extra_selector & LX_smtp_no_mail) == 0)
+ return;
+
+s = NULL;
+size = ptr = 0;
+
+if (sender_host_authenticated != NULL)
+ {
+ s = string_append(s, &size, &ptr, 2, US" A=", sender_host_authenticated);
+ if (authenticated_id != NULL)
+ s = string_append(s, &size, &ptr, 2, US":", authenticated_id);
+ }
+
+#ifdef SUPPORT_TLS
+if ((log_extra_selector & LX_tls_cipher) != 0 && tls_cipher != NULL)
+ s = string_append(s, &size, &ptr, 2, US" X=", tls_cipher);
+if ((log_extra_selector & LX_tls_certificate_verified) != 0 &&
+ tls_cipher != NULL)
+ s = string_append(s, &size, &ptr, 2, US" CV=",
+ tls_certificate_verified? "yes":"no");
+if ((log_extra_selector & LX_tls_peerdn) != 0 && tls_peerdn != NULL)
+ s = string_append(s, &size, &ptr, 3, US" DN=\"", tls_peerdn, US"\"");
+#endif
+
+sep = (smtp_connection_had[SMTP_HBUFF_SIZE-1] != SCH_NONE)?
+ US" C=..." : US" C=";
+for (i = smtp_ch_index; i < SMTP_HBUFF_SIZE; i++)
+ {
+ if (smtp_connection_had[i] != SCH_NONE)
+ {
+ s = string_append(s, &size, &ptr, 2, sep,
+ smtp_names[smtp_connection_had[i]]);
+ sep = US",";
+ }
+ }
+
+for (i = 0; i < smtp_ch_index; i++)
+ {
+ s = string_append(s, &size, &ptr, 2, sep, smtp_names[smtp_connection_had[i]]);
+ sep = US",";
+ }
+
+if (s != NULL) s[ptr] = 0; else s = US"";
+log_write(0, LOG_MAIN, "no MAIL in SMTP connection from %s D=%s%s",
+ host_and_ident(FALSE),
+ readconf_printtime(time(NULL) - smtp_connection_start), s);
+}
+
+
+
/*************************************************
* Check HELO line and set sender_helo_name *
*************************************************/
/* Warning log messages are also saved in malloc store. They are saved to avoid
repetition in the same message, but it seems right to repeat them for different
-messagess. */
+messages. */
while (acl_warn_logged != NULL)
{
smtp_start_session(void)
{
int size = 256;
-int ptr;
+int ptr, esclen;
+uschar *user_msg, *log_msg;
+uschar *code, *esc;
uschar *p, *s, *ss;
+smtp_connection_start = time(NULL);
+for (smtp_ch_index = 0; smtp_ch_index < SMTP_HBUFF_SIZE; smtp_ch_index++)
+ smtp_connection_had[smtp_ch_index] = SCH_NONE;
+smtp_ch_index = 0;
+
/* Default values for certain variables */
helo_seen = esmtp = helo_accept_junk = FALSE;
+smtp_mailcmd_count = 0;
count_nonmail = TRUE_UNSET;
synprot_error_count = unknown_command_count = nonmail_command_count = 0;
smtp_delay_mail = smtp_rlm_base;
/* Run the ACL if it exists */
+user_msg = NULL;
if (acl_smtp_connect != NULL)
{
int rc;
- uschar *user_msg, *log_msg;
rc = acl_check(ACL_WHERE_CONNECT, NULL, acl_smtp_connect, &user_msg,
&log_msg);
if (rc != OK)
/* Output the initial message for a two-way SMTP connection. It may contain
newlines, which then cause a multi-line response to be given. */
-s = expand_string(smtp_banner);
-if (s == NULL)
- log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Expansion of \"%s\" (smtp_banner) "
- "failed: %s", smtp_banner, expand_string_message);
+code = US"220"; /* Default status code */
+esc = US""; /* Default extended status code */
+esclen = 0; /* Length of esc */
+
+if (user_msg == NULL)
+ {
+ s = expand_string(smtp_banner);
+ if (s == NULL)
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Expansion of \"%s\" (smtp_banner) "
+ "failed: %s", smtp_banner, expand_string_message);
+ }
+else
+ {
+ int codelen = 3;
+ s = user_msg;
+ smtp_message_code(&code, &codelen, &s, NULL);
+ if (codelen > 4)
+ {
+ esc = code + 4;
+ esclen = codelen - 4;
+ }
+ }
/* Remove any terminating newlines; might as well remove trailing space too */
{
int len;
uschar *linebreak = Ustrchr(p, '\n');
+ ss = string_cat(ss, &size, &ptr, code, 3);
if (linebreak == NULL)
{
len = Ustrlen(p);
- ss = string_cat(ss, &size, &ptr, US"220 ", 4);
+ ss = string_cat(ss, &size, &ptr, US" ", 1);
}
else
{
len = linebreak - p;
- ss = string_cat(ss, &size, &ptr, US"220-", 4);
+ ss = string_cat(ss, &size, &ptr, US"-", 1);
}
+ ss = string_cat(ss, &size, &ptr, esc, esclen);
ss = string_cat(ss, &size, &ptr, p, len);
ss = string_cat(ss, &size, &ptr, US"\r\n", 2);
p += len;
Arguments:
code SMTP code, may involve extended status codes
- codelen length of smtp code; uf > 3 there's an ESC
+ codelen length of smtp code; if > 4 there's an ESC
final FALSE if the last line isn't the final line
msg message text, possibly containing newlines
if (!final && no_multiline_responses) return;
-if (codelen > 3)
+if (codelen > 4)
{
esc = code + 4;
esclen = codelen - 4;
+/*************************************************
+* Parse user SMTP message *
+*************************************************/
+
+/* This function allows for user messages overriding the response code details
+by providing a suitable response code string at the start of the message
+user_msg. Check the message for starting with a response code and optionally an
+extended status code. If found, check that the first digit is valid, and if so,
+change the code pointer and length to use the replacement. An invalid code
+causes a panic log; in this case, if the log messages is the same as the user
+message, we must also adjust the value of the log message to show the code that
+is actually going to be used (the original one).
+
+This function is global because it is called from receive.c as well as within
+this module.
+
+Note that the code length returned includes the terminating whitespace
+character, which is always included in the regex match.
+
+Arguments:
+ code SMTP code, may involve extended status codes
+ codelen length of smtp code; if > 4 there's an ESC
+ msg message text
+ log_msg optional log message, to be adjusted with the new SMTP code
+
+Returns: nothing
+*/
+
+void
+smtp_message_code(uschar **code, int *codelen, uschar **msg, uschar **log_msg)
+{
+int n;
+int ovector[3];
+
+if (msg == NULL || *msg == NULL) return;
+
+n = pcre_exec(regex_smtp_code, NULL, CS *msg, Ustrlen(*msg), 0,
+ PCRE_EOPT, ovector, sizeof(ovector)/sizeof(int));
+if (n < 0) return;
+
+if ((*msg)[0] != (*code)[0])
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC, "configured error code starts with "
+ "incorrect digit (expected %c) in \"%s\"", (*code)[0], *msg);
+ if (log_msg != NULL && *log_msg == *msg)
+ *log_msg = string_sprintf("%s %s", *code, *log_msg + ovector[1]);
+ }
+else
+ {
+ *code = *msg;
+ *codelen = ovector[1]; /* Includes final space */
+ }
+*msg += ovector[1]; /* Chop the code off the message */
+return;
+}
+
+
+
+
/*************************************************
* Handle an ACL failure *
*************************************************/
{
BOOL drop = rc == FAIL_DROP;
int codelen = 3;
-int ovector[3];
uschar *smtp_code;
uschar *lognl;
uschar *sender_info = US"";
if (drop) rc = FAIL;
-/* Set the default SMTP code */
+/* Set the default SMTP code, and allow a user message to change it. */
smtp_code = (rc != FAIL)? US"451" : acl_wherecodes[where];
-
-/* Check a user message for starting with a response code and optionally an
-extended status code. If found, check that the first digit is valid, and if so,
-use it instead of the default code. */
-
-if (user_msg != NULL)
- {
- int n = pcre_exec(regex_smtp_code, NULL, CS user_msg, Ustrlen(user_msg), 0,
- PCRE_EOPT, ovector, sizeof(ovector)/sizeof(int));
- if (n >= 0)
- {
- if (user_msg[0] != smtp_code[0])
- {
- log_write(0, LOG_MAIN|LOG_PANIC, "configured error code starts with "
- "incorrect digit (expected %c) in \"%s\"", smtp_code[0], user_msg);
-
- /* If log_msg == user_msg (the default set in acl.c if no log message is
- specified, we must adjust the log message to show the code that is
- actually going to be used. */
-
- if (log_msg == user_msg)
- log_msg = string_sprintf("%s %s", smtp_code, log_msg + ovector[1]);
- }
- else
- {
- smtp_code = user_msg;
- codelen = ovector[1]; /* Includes final space */
- }
- user_msg += ovector[1]; /* Chop the code off the message */
- }
- }
+smtp_message_code(&smtp_code, &codelen, &user_msg, &log_msg);
/* We used to have sender_address here; however, there was a bug that was not
updating sender_address after a rewrite during a verify. When this bug was
+/*************************************************
+* Send user response message *
+*************************************************/
+
+/* This function is passed a default response code and a user message. It calls
+smtp_message_code() to check and possibly modify the response code, and then
+calls smtp_respond() to transmit the response. I put this into a function
+just to avoid a lot of repetition.
+
+Arguments:
+ code the response code
+ user_msg the user message
+
+Returns: nothing
+*/
+
+static void
+smtp_user_msg(uschar *code, uschar *user_msg)
+{
+int len = 3;
+smtp_message_code(&code, &len, &user_msg, NULL);
+smtp_respond(code, len, TRUE, user_msg);
+}
+
+
+
+
/*************************************************
* Initialize for SMTP incoming message *
*************************************************/
uschar *etrn_command;
uschar *etrn_serialize_key;
uschar *errmess;
- uschar *user_msg, *log_msg;
+ uschar *log_msg, *smtp_code;
+ uschar *user_msg = NULL;
uschar *recipient = NULL;
uschar *hello = NULL;
uschar *set_id = NULL;
AUTHS will eventually hit the nonmail threshold. */
case AUTH_CMD:
+ HAD(SCH_AUTH);
authentication_failed = TRUE;
cmd_list[CMD_LIST_AUTH].is_mail_cmd = FALSE;
it did the reset first. */
case HELO_CMD:
+ HAD(SCH_HELO);
hello = US"HELO";
esmtp = FALSE;
goto HELO_EHLO;
case EHLO_CMD:
+ HAD(SCH_EHLO);
hello = US"EHLO";
esmtp = TRUE;
}
}
- /* The EHLO/HELO command is acceptable. Reset the protocol and the state,
- abandoning any previous message. */
-
- received_protocol = (esmtp?
- protocols[pextend +
- ((sender_host_authenticated != NULL)? pauthed : 0) +
- ((tls_active >= 0)? pcrpted : 0)]
- :
- protocols[pnormal + ((tls_active >= 0)? pcrpted : 0)])
- +
- ((sender_host_address != NULL)? pnlocal : 0);
-
- smtp_reset(reset_point);
- toomany = FALSE;
-
- /* Generate an OK reply, including the ident if present, and also
- the IP address if present. Reflecting back the ident is intended
- as a deterrent to mail forgers. For maximum efficiency, and also
- because some broken systems expect each response to be in a single
- packet, arrange that it is sent in one write(). */
+ /* Generate an OK reply. The default string includes the ident if present,
+ and also the IP address if present. Reflecting back the ident is intended
+ as a deterrent to mail forgers. For maximum efficiency, and also because
+ some broken systems expect each response to be in a single packet, arrange
+ that the entire reply is sent in one write(). */
auth_advertised = FALSE;
pipelining_advertised = FALSE;
tls_advertised = FALSE;
#endif
- s = string_sprintf("250 %s Hello %s%s%s",
- smtp_active_hostname,
- (sender_ident == NULL)? US"" : sender_ident,
- (sender_ident == NULL)? US"" : US" at ",
- (sender_host_name == NULL)? sender_helo_name : sender_host_name);
+ smtp_code = US"250 "; /* Default response code plus space*/
+ if (user_msg == NULL)
+ {
+ s = string_sprintf("%.3s %s Hello %s%s%s",
+ smtp_code,
+ smtp_active_hostname,
+ (sender_ident == NULL)? US"" : sender_ident,
+ (sender_ident == NULL)? US"" : US" at ",
+ (sender_host_name == NULL)? sender_helo_name : sender_host_name);
+
+ ptr = Ustrlen(s);
+ size = ptr + 1;
- ptr = Ustrlen(s);
- size = ptr + 1;
+ if (sender_host_address != NULL)
+ {
+ s = string_cat(s, &size, &ptr, US" [", 2);
+ s = string_cat(s, &size, &ptr, sender_host_address,
+ Ustrlen(sender_host_address));
+ s = string_cat(s, &size, &ptr, US"]", 1);
+ }
+ }
- if (sender_host_address != NULL)
+ /* A user-supplied EHLO greeting may not contain more than one line. Note
+ that the code returned by smtp_message_code() includes the terminating
+ whitespace character. */
+
+ else
{
- s = string_cat(s, &size, &ptr, US" [", 2);
- s = string_cat(s, &size, &ptr, sender_host_address,
- Ustrlen(sender_host_address));
- s = string_cat(s, &size, &ptr, US"]", 1);
+ char *ss;
+ int codelen = 4;
+ smtp_message_code(&smtp_code, &codelen, &user_msg, NULL);
+ s = string_sprintf("%.*s%s", codelen, smtp_code, user_msg);
+ if ((ss = strpbrk(CS s, "\r\n")) != NULL)
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC, "EHLO/HELO response must not contain "
+ "newlines: message truncated: %s", string_printing(s));
+ *ss = 0;
+ }
+ ptr = Ustrlen(s);
+ size = ptr + 1;
}
s = string_cat(s, &size, &ptr, US"\r\n", 2);
if (thismessage_size_limit > 0)
{
- sprintf(CS big_buffer, "250-SIZE %d\r\n", thismessage_size_limit);
+ sprintf(CS big_buffer, "%.3s-SIZE %d\r\n", smtp_code,
+ thismessage_size_limit);
s = string_cat(s, &size, &ptr, big_buffer, Ustrlen(big_buffer));
}
else
{
- s = string_cat(s, &size, &ptr, US"250-SIZE\r\n", 10);
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US"-SIZE\r\n", 7);
}
/* Exim does not do protocol conversion or data conversion. It is 8-bit
provided as an option. */
if (accept_8bitmime)
- s = string_cat(s, &size, &ptr, US"250-8BITMIME\r\n", 14);
+ {
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US"-8BITMIME\r\n", 11);
+ }
/* Advertise ETRN if there's an ACL checking whether a host is
permitted to issue it; a check is made when any host actually tries. */
if (acl_smtp_etrn != NULL)
{
- s = string_cat(s, &size, &ptr, US"250-ETRN\r\n", 10);
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US"-ETRN\r\n", 7);
}
/* Advertise EXPN if there's an ACL checking whether a host is
if (acl_smtp_expn != NULL)
{
- s = string_cat(s, &size, &ptr, US"250-EXPN\r\n", 10);
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US"-EXPN\r\n", 7);
}
/* Exim is quite happy with pipelining, so let the other end know that
if (verify_check_host(&pipelining_advertise_hosts) == OK)
{
- s = string_cat(s, &size, &ptr, US"250-PIPELINING\r\n", 16);
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US"-PIPELINING\r\n", 13);
sync_cmd_limit = NON_SYNC_CMD_PIPELINING;
pipelining_advertised = TRUE;
}
int saveptr;
if (first)
{
- s = string_cat(s, &size, &ptr, US"250-AUTH", 8);
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US"-AUTH", 5);
first = FALSE;
auth_advertised = TRUE;
}
if (tls_active < 0 &&
verify_check_host(&tls_advertise_hosts) != FAIL)
{
- s = string_cat(s, &size, &ptr, US"250-STARTTLS\r\n", 14);
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US"-STARTTLS\r\n", 11);
tls_advertised = TRUE;
}
#endif
/* Finish off the multiline reply with one that is always available. */
- s = string_cat(s, &size, &ptr, US"250 HELP\r\n", 10);
+ s = string_cat(s, &size, &ptr, smtp_code, 3);
+ s = string_cat(s, &size, &ptr, US" HELP\r\n", 7);
}
/* Terminate the string (for debug), write it, and note that HELO/EHLO
debug_printf("SMTP>> %s", s);
}
helo_seen = TRUE;
+
+ /* Reset the protocol and the state, abandoning any previous message. */
+
+ received_protocol = (esmtp?
+ protocols[pextend +
+ ((sender_host_authenticated != NULL)? pauthed : 0) +
+ ((tls_active >= 0)? pcrpted : 0)]
+ :
+ protocols[pnormal + ((tls_active >= 0)? pcrpted : 0)])
+ +
+ ((sender_host_address != NULL)? pnlocal : 0);
+
+ smtp_reset(reset_point);
+ toomany = FALSE;
break; /* HELO/EHLO */
it is the canonical extracted address which is all that is kept. */
case MAIL_CMD:
+ HAD(SCH_MAIL);
smtp_mailcmd_count++; /* Count for limit and ratelimit */
was_rej_mail = TRUE; /* Reset if accepted */
if (rc == OK || rc == DISCARD)
{
- smtp_printf("250 OK\r\n");
+ if (user_msg == NULL) smtp_printf("250 OK\r\n");
+ else smtp_user_msg(US"250", user_msg);
smtp_delay_rcpt = smtp_rlr_base;
recipients_discarded = (rc == DISCARD);
was_rej_mail = FALSE;
}
-
else
{
done = smtp_handle_acl_fail(ACL_WHERE_MAIL, rc, user_msg, log_msg);
extracted address. */
case RCPT_CMD:
+ HAD(SCH_RCPT);
rcpt_count++;
was_rcpt = TRUE;
if (rc == OK)
{
- smtp_printf("250 Accepted\r\n");
+ if (user_msg == NULL) smtp_printf("250 Accepted\r\n");
+ else smtp_user_msg(US"250", user_msg);
receive_add_recipient(recipient, -1);
}
else if (rc == DISCARD)
{
- smtp_printf("250 Accepted\r\n");
+ if (user_msg == NULL) smtp_printf("250 Accepted\r\n");
+ else smtp_user_msg(US"250", user_msg);
rcpt_fail_count++;
discarded = TRUE;
log_write(0, LOG_MAIN|LOG_REJECT, "%s F=<%s> rejected RCPT %s: "
because it is the same whether pipelining is in use or not. */
case DATA_CMD:
+ HAD(SCH_DATA);
if (!discarded && recipients_count <= 0)
{
if (pipelining_advertised && last_was_rcpt)
if (rc == OK)
{
- smtp_printf("354 Enter message, ending with \".\" on a line by itself\r\n");
+ if (user_msg == NULL)
+ smtp_printf("354 Enter message, ending with \".\" on a line by itself\r\n");
+ else smtp_user_msg(US"354", user_msg);
done = 3;
message_ended = END_NOTENDED; /* Indicate in middle of data */
}
case VRFY_CMD:
+ HAD(SCH_VRFY);
rc = acl_check(ACL_WHERE_VRFY, NULL, acl_smtp_vrfy, &user_msg, &log_msg);
if (rc != OK)
done = smtp_handle_acl_fail(ACL_WHERE_VRFY, rc, user_msg, log_msg);
case EXPN_CMD:
+ HAD(SCH_EXPN);
rc = acl_check(ACL_WHERE_EXPN, NULL, acl_smtp_expn, &user_msg, &log_msg);
if (rc != OK)
done = smtp_handle_acl_fail(ACL_WHERE_EXPN, rc, user_msg, log_msg);
#ifdef SUPPORT_TLS
case STARTTLS_CMD:
+ HAD(SCH_STARTTLS);
if (!tls_advertised)
{
done = synprot_error(L_smtp_protocol_error, 503, NULL,
message. */
case QUIT_CMD:
+ HAD(SCH_QUIT);
incomplete_transaction_log(US"QUIT");
if (acl_smtp_quit != NULL)
log_write(0, LOG_MAIN|LOG_PANIC, "ACL for QUIT returned ERROR: %s",
log_msg);
}
- else user_msg = NULL;
if (user_msg == NULL)
smtp_printf("221 %s closing connection\r\n", smtp_active_hostname);
else
- smtp_printf("221 %s\r\n", user_msg);
+ smtp_respond(US"221", 3, TRUE, user_msg);
#ifdef SUPPORT_TLS
tls_close(TRUE);
case RSET_CMD:
+ HAD(SCH_RSET);
incomplete_transaction_log(US"RSET");
smtp_reset(reset_point);
toomany = FALSE;
case NOOP_CMD:
+ HAD(SCH_NOOP);
smtp_printf("250 OK\r\n");
break;
permitted hosts. */
case HELP_CMD:
+ HAD(SCH_HELP);
smtp_printf("214-Commands supported:\r\n");
{
uschar buffer[256];
case ETRN_CMD:
+ HAD(SCH_ETRN);
if (sender_address != NULL)
{
done = synprot_error(L_smtp_protocol_error, 503, NULL,
debug_printf("ETRN command is: %s\n", etrn_command);
debug_printf("ETRN command execution skipped\n");
}
- smtp_printf("250 OK\r\n");
+ if (user_msg == NULL) smtp_printf("250 OK\r\n");
+ else smtp_user_msg(US"250", user_msg);
break;
}
smtp_printf("458 Unable to fork process\r\n");
if (smtp_etrn_serialize) enq_end(etrn_serialize_key);
}
- else smtp_printf("250 OK\r\n");
+ else
+ {
+ if (user_msg == NULL) smtp_printf("250 OK\r\n");
+ else smtp_user_msg(US"250", user_msg);
+ }
signal(SIGCHLD, oldsignal);
break;
git://git.exim.org / exim.git / blobdiff