/* Append TLS-related information to a log line
Arguments:
- s String under construction: allocated string to extend, or NULL
- sizep Pointer to current allocation size (update on return), or NULL
- ptrp Pointer to index for new entries in string (update on return), or NULL
+ g String under construction: allocated string to extend, or NULL
Returns: Allocated string or NULL
*/
-static uschar *
-s_tlslog(uschar * s, int * sizep, int * ptrp)
+static gstring *
+s_tlslog(gstring * g)
{
- int size = sizep ? *sizep : 0;
- int ptr = ptrp ? *ptrp : 0;
-
- if (LOGGING(tls_cipher) && tls_in.cipher != NULL)
- s = string_append(s, &size, &ptr, 2, US" X=", tls_in.cipher);
- if (LOGGING(tls_certificate_verified) && tls_in.cipher != NULL)
- s = string_append(s, &size, &ptr, 2, US" CV=",
- tls_in.certificate_verified? "yes":"no");
- if (LOGGING(tls_peerdn) && tls_in.peerdn != NULL)
- s = string_append(s, &size, &ptr, 3, US" DN=\"",
- string_printing(tls_in.peerdn), US"\"");
- if (LOGGING(tls_sni) && tls_in.sni != NULL)
- s = string_append(s, &size, &ptr, 3, US" SNI=\"",
- string_printing(tls_in.sni), US"\"");
-
- if (s)
- {
- s[ptr] = '\0';
- if (sizep) *sizep = size;
- if (ptrp) *ptrp = ptr;
- }
- return s;
+if (LOGGING(tls_cipher) && tls_in.cipher)
+ g = string_append(g, 2, US" X=", tls_in.cipher);
+if (LOGGING(tls_certificate_verified) && tls_in.cipher)
+ g = string_append(g, 2, US" CV=", tls_in.certificate_verified? "yes":"no");
+if (LOGGING(tls_peerdn) && tls_in.peerdn)
+ g = string_append(g, 3, US" DN=\"", string_printing(tls_in.peerdn), US"\"");
+if (LOGGING(tls_sni) && tls_in.sni)
+ g = string_append(g, 3, US" SNI=\"", string_printing(tls_in.sni), US"\"");
+return g;
}
#endif
void
smtp_log_no_mail(void)
{
-int size, ptr, i;
-uschar *s, *sep;
+int i;
+uschar * sep, * s;
+gstring * g = NULL;
if (smtp_mailcmd_count > 0 || !LOGGING(smtp_no_mail))
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);
+ g = string_append(g, 2, US" A=", sender_host_authenticated);
+ if (authenticated_id) g = string_append(g, 2, US":", authenticated_id);
}
#ifdef SUPPORT_TLS
-s = s_tlslog(s, &size, &ptr);
+g = s_tlslog(g);
#endif
-sep = (smtp_connection_had[SMTP_HBUFF_SIZE-1] != SCH_NONE)?
- US" C=..." : US" C=";
+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]]);
+ g = string_append(g, 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]]);
+ g = string_append(g, 2, sep, smtp_names[smtp_connection_had[i]]);
sep = US",";
}
-if (s) s[ptr] = 0; else s = US"";
+if (!(s = string_from_gstring(g))) s = US"";
+
log_write(0, LOG_MAIN, "no MAIL in %sSMTP connection from %s D=%s%s",
tcp_in_fastopen ? US"TFO " : US"",
host_and_ident(FALSE), string_timesince(&smtp_connection_start), s);
uschar *
smtp_cmd_hist(void)
{
-uschar * list = NULL;
-int size = 0, len = 0, i;
+int i;
+gstring * list = NULL;
+uschar * s;
for (i = smtp_ch_index; i < SMTP_HBUFF_SIZE; i++)
if (smtp_connection_had[i] != SCH_NONE)
- list = string_append_listele(list, &size, &len, ',',
- smtp_names[smtp_connection_had[i]]);
+ list = string_append_listele(list, ',', smtp_names[smtp_connection_had[i]]);
+
for (i = 0; i < smtp_ch_index; i++)
- list = string_append_listele(list, &size, &len, ',',
- smtp_names[smtp_connection_had[i]]);
-return list ? list : US"";
+ list = string_append_listele(list, ',', smtp_names[smtp_connection_had[i]]);
+
+s = string_from_gstring(list);
+return s ? s : US"";
}
BOOL
smtp_start_session(void)
{
-int size = 256;
-int ptr, esclen;
+int esclen;
uschar *user_msg, *log_msg;
uschar *code, *esc;
-uschar *p, *s, *ss;
+uschar *p, *s;
+gstring * ss;
gettimeofday(&smtp_connection_start, NULL);
for (smtp_ch_index = 0; smtp_ch_index < SMTP_HBUFF_SIZE; smtp_ch_index++)
first, and output it in one fell swoop. This gives a better chance of it
ending up as a single packet. */
-ss = store_get(size);
-ptr = 0;
+ss = string_get(256);
p = s;
do /* At least once, in case we have an empty string */
{
int len;
uschar *linebreak = Ustrchr(p, '\n');
- ss = string_catn(ss, &size, &ptr, code, 3);
+ ss = string_catn(ss, code, 3);
if (linebreak == NULL)
{
len = Ustrlen(p);
- ss = string_catn(ss, &size, &ptr, US" ", 1);
+ ss = string_catn(ss, US" ", 1);
}
else
{
len = linebreak - p;
- ss = string_catn(ss, &size, &ptr, US"-", 1);
+ ss = string_catn(ss, US"-", 1);
}
- ss = string_catn(ss, &size, &ptr, esc, esclen);
- ss = string_catn(ss, &size, &ptr, p, len);
- ss = string_catn(ss, &size, &ptr, US"\r\n", 2);
+ ss = string_catn(ss, esc, esclen);
+ ss = string_catn(ss, p, len);
+ ss = string_catn(ss, US"\r\n", 2);
p += len;
if (linebreak != NULL) p++;
}
while (*p != 0);
-ss[ptr] = 0; /* string_cat leaves room for this */
-
/* Before we write the banner, check that there is no input pending, unless
this synchronisation check is disabled. */
/* Now output the banner */
-smtp_printf("%s", FALSE, ss);
+smtp_printf("%s", FALSE, string_from_gstring(ss));
/* Attempt to see if we sent the banner before the last ACK of the 3-way
handshake arrived. If so we must have managed a TFO. */
if (log_reject_target != 0)
{
#ifdef SUPPORT_TLS
- uschar * tls = s_tlslog(NULL, NULL, NULL);
+ gstring * g = s_tlslog(NULL);
+ uschar * tls = string_from_gstring(g);
if (!tls) tls = US"";
#else
uschar * tls = US"";
void (*oldsignal)(int);
pid_t pid;
int start, end, sender_domain, recipient_domain;
- int ptr, size, rc;
+ int rc;
int c;
auth_instance *au;
uschar *orcpt = NULL;
int flags;
+ gstring * g;
#ifdef AUTH_TLS
/* Check once per STARTTLS or SSL-on-connect for a TLS AUTH */
sender_ident ? sender_ident : US"",
sender_ident ? US" at " : US"",
sender_host_name ? sender_host_name : sender_helo_name);
-
- ptr = Ustrlen(s);
- size = ptr + 1;
+ g = string_cat(NULL, s);
if (sender_host_address)
{
- s = string_catn(s, &size, &ptr, US" [", 2);
- s = string_cat (s, &size, &ptr, sender_host_address);
- s = string_catn(s, &size, &ptr, US"]", 1);
+ g = string_catn(g, US" [", 2);
+ g = string_cat (g, sender_host_address);
+ g = string_catn(g, US"]", 1);
}
}
"newlines: message truncated: %s", string_printing(s));
*ss = 0;
}
- ptr = Ustrlen(s);
- size = ptr + 1;
+ g = string_cat(NULL, s);
}
- s = string_catn(s, &size, &ptr, US"\r\n", 2);
+ g = string_catn(g, US"\r\n", 2);
/* If we received EHLO, we must create a multiline response which includes
the functions supported. */
if (esmtp)
{
- s[3] = '-';
+ g->s[3] = '-';
/* I'm not entirely happy with this, as an MTA is supposed to check
that it has enough room to accept a message of maximum size before
{
sprintf(CS big_buffer, "%.3s-SIZE %d\r\n", smtp_code,
thismessage_size_limit);
- s = string_cat(s, &size, &ptr, big_buffer);
+ g = string_cat(g, big_buffer);
}
else
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-SIZE\r\n", 7);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-SIZE\r\n", 7);
}
/* Exim does not do protocol conversion or data conversion. It is 8-bit
if (accept_8bitmime)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-8BITMIME\r\n", 11);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-8BITMIME\r\n", 11);
}
/* Advertise DSN support if configured to do so. */
if (verify_check_host(&dsn_advertise_hosts) != FAIL)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-DSN\r\n", 6);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-DSN\r\n", 6);
dsn_advertised = TRUE;
}
if (acl_smtp_etrn)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-ETRN\r\n", 7);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-ETRN\r\n", 7);
}
if (acl_smtp_vrfy)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-VRFY\r\n", 7);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-VRFY\r\n", 7);
}
if (acl_smtp_expn)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-EXPN\r\n", 7);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-EXPN\r\n", 7);
}
/* Exim is quite happy with pipelining, so let the other end know that
if (pipelining_enable &&
verify_check_host(&pipelining_advertise_hosts) == OK)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-PIPELINING\r\n", 13);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-PIPELINING\r\n", 13);
sync_cmd_limit = NON_SYNC_CMD_PIPELINING;
pipelining_advertised = TRUE;
}
int saveptr;
if (first)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-AUTH", 5);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-AUTH", 5);
first = FALSE;
auth_advertised = TRUE;
}
- saveptr = ptr;
- s = string_catn(s, &size, &ptr, US" ", 1);
- s = string_cat (s, &size, &ptr, au->public_name);
- while (++saveptr < ptr) s[saveptr] = toupper(s[saveptr]);
+ saveptr = g->ptr;
+ g = string_catn(g, US" ", 1);
+ g = string_cat (g, au->public_name);
+ while (++saveptr < g->ptr) g->s[saveptr] = toupper(g->s[saveptr]);
au->advertised = TRUE;
}
}
}
- if (!first) s = string_catn(s, &size, &ptr, US"\r\n", 2);
+ if (!first) g = string_catn(g, US"\r\n", 2);
}
/* RFC 3030 CHUNKING */
if (verify_check_host(&chunking_advertise_hosts) != FAIL)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-CHUNKING\r\n", 11);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-CHUNKING\r\n", 11);
chunking_offered = TRUE;
chunking_state = CHUNKING_OFFERED;
}
if (tls_in.active < 0 &&
verify_check_host(&tls_advertise_hosts) != FAIL)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-STARTTLS\r\n", 11);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-STARTTLS\r\n", 11);
tls_advertised = TRUE;
}
#endif
/* Per Recipient Data Response, draft by Eric A. Hall extending RFC */
if (prdr_enable)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-PRDR\r\n", 7);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-PRDR\r\n", 7);
}
#endif
if ( accept_8bitmime
&& verify_check_host(&smtputf8_advertise_hosts) != FAIL)
{
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US"-SMTPUTF8\r\n", 11);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US"-SMTPUTF8\r\n", 11);
smtputf8_advertised = TRUE;
}
#endif
/* Finish off the multiline reply with one that is always available. */
- s = string_catn(s, &size, &ptr, smtp_code, 3);
- s = string_catn(s, &size, &ptr, US" HELP\r\n", 7);
+ g = string_catn(g, smtp_code, 3);
+ g = string_catn(g, US" HELP\r\n", 7);
}
/* Terminate the string (for debug), write it, and note that HELO/EHLO
has been seen. */
- s[ptr] = 0;
-
#ifdef SUPPORT_TLS
- if (tls_in.active >= 0) (void)tls_write(TRUE, s, ptr, FALSE); else
+ if (tls_in.active >= 0) (void)tls_write(TRUE, g->s, g->ptr, FALSE); else
#endif
{
- int i = fwrite(s, 1, ptr, smtp_out); i = i; /* compiler quietening */
+ int i = fwrite(g->s, 1, g->ptr, smtp_out); i = i; /* compiler quietening */
}
DEBUG(D_receive)
{
uschar *cr;
- while ((cr = Ustrchr(s, '\r')) != NULL) /* lose CRs */
- memmove(cr, cr + 1, (ptr--) - (cr - s));
- debug_printf("SMTP>> %s", s);
+
+ (void) string_from_gstring(g);
+ while ((cr = Ustrchr(g->s, '\r')) != NULL) /* lose CRs */
+ memmove(cr, cr + 1, (g->ptr--) - (cr - g->s));
+ debug_printf("SMTP>> %s", g->s);
}
helo_seen = TRUE;
projects / exim.git / blobdiff