Merge branch 'CHUNKING'

[exim.git] / src / src / smtp_out.c

diff --git a/src/src/smtp_out.c b/src/src/smtp_out.c
index abc5b80feba6429a78a02eb6de5a05c2cd974924..76181b5f1c5387ba836d8b84fc213882d4afd9b1 100644 (file)
--- a/src/src/smtp_out.c
+++ b/src/src/smtp_out.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2015 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* A number of functions for driving outgoing SMTP calls. */
@@ -155,7 +155,7 @@ int sock;
 int on = 1;
 int save_errno = 0;
 
-#ifdef EXPERIMENTAL_EVENT
+#ifndef DISABLE_EVENT
 deliver_host_address = host->address;
 deliver_host_port = port;
 if (event_raise(tb->event_action, US"tcp:connect", NULL)) return -1;
@@ -165,7 +165,9 @@ if ((sock = ip_socket(SOCK_STREAM, host_af)) < 0) return -1;
 
 /* Set TCP_NODELAY; Exim does its own buffering. */
 
-setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (uschar *)(&on), sizeof(on));
+if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, US &on, sizeof(on)))
+  HDEBUG(D_transport|D_acl|D_v)
+    debug_printf("failed to set NODELAY: %s ", strerror(errno));
 
 /* Set DSCP value, if we can. For now, if we fail to set the value, we don't
 bomb out, just log it and continue in default traffic class. */
@@ -267,7 +269,7 @@ int
 smtp_connect(host_item *host, int host_af, int port, uschar *interface,
   int timeout, transport_instance * tb)
 {
-#ifndef DISABLE_SOCKS
+#ifdef SUPPORT_SOCKS
 smtp_transport_options_block * ob =
   (smtp_transport_options_block *)tb->options_block;
 #endif
@@ -287,7 +289,7 @@ HDEBUG(D_transport|D_acl|D_v)
   {
   uschar * s = US" ";
   if (interface) s = string_sprintf(" from %s ", interface);
-#ifndef DISABLE_SOCKS
+#ifdef SUPPORT_SOCKS
   if (ob->socks_proxy) s = string_sprintf("%svia proxy ", s);
 #endif
   debug_printf("Connecting to %s %s%s... ", host->name, callout_address, s);
@@ -295,7 +297,7 @@ HDEBUG(D_transport|D_acl|D_v)
 
 /* Create and connect the socket */
 
-#ifndef DISABLE_SOCKS
+#ifdef SUPPORT_SOCKS
 if (ob->socks_proxy)
   return socks_sock_connect(host, host_af, port, interface, tb, timeout);
 #endif
@@ -355,6 +357,7 @@ Arguments:
   noflush    if TRUE, save the command in the output buffer, for pipelining
   format     a format, starting with one of
              of HELO, MAIL FROM, RCPT TO, DATA, ".", or QUIT.
+            If NULL, flush pipeline buffer only.
   ...        data for the format
 
 Returns:     0 if command added to pipelining buffer, with nothing transmitted
@@ -369,48 +372,51 @@ int count;
 int rc = 0;
 va_list ap;
 
-va_start(ap, format);
-if (!string_vformat(big_buffer, big_buffer_size, CS format, ap))
-  log_write(0, LOG_MAIN|LOG_PANIC_DIE, "overlong write_command in outgoing "
-    "SMTP");
-va_end(ap);
-count = Ustrlen(big_buffer);
-
-if (count > outblock->buffersize)
-  log_write(0, LOG_MAIN|LOG_PANIC_DIE, "overlong write_command in outgoing "
-    "SMTP");
-
-if (count > outblock->buffersize - (outblock->ptr - outblock->buffer))
+if (format)
   {
-  rc = outblock->cmd_count;                 /* flush resets */
-  if (!flush_buffer(outblock)) return -1;
-  }
+  va_start(ap, format);
+  if (!string_vformat(big_buffer, big_buffer_size, CS format, ap))
+    log_write(0, LOG_MAIN|LOG_PANIC_DIE, "overlong write_command in outgoing "
+      "SMTP");
+  va_end(ap);
+  count = Ustrlen(big_buffer);
+
+  if (count > outblock->buffersize)
+    log_write(0, LOG_MAIN|LOG_PANIC_DIE, "overlong write_command in outgoing "
+      "SMTP");
+
+  if (count > outblock->buffersize - (outblock->ptr - outblock->buffer))
+    {
+    rc = outblock->cmd_count;                 /* flush resets */
+    if (!flush_buffer(outblock)) return -1;
+    }
 
-Ustrncpy(CS outblock->ptr, big_buffer, count);
-outblock->ptr += count;
-outblock->cmd_count++;
-count -= 2;
-big_buffer[count] = 0;     /* remove \r\n for error message */
+  Ustrncpy(CS outblock->ptr, big_buffer, count);
+  outblock->ptr += count;
+  outblock->cmd_count++;
+  count -= 2;
+  big_buffer[count] = 0;     /* remove \r\n for error message */
 
-/* We want to hide the actual data sent in AUTH transactions from reflections
-and logs. While authenticating, a flag is set in the outblock to enable this.
-The AUTH command itself gets any data flattened. Other lines are flattened
-completely. */
+  /* We want to hide the actual data sent in AUTH transactions from reflections
+  and logs. While authenticating, a flag is set in the outblock to enable this.
+  The AUTH command itself gets any data flattened. Other lines are flattened
+  completely. */
 
-if (outblock->authenticating)
-  {
-  uschar *p = big_buffer;
-  if (Ustrncmp(big_buffer, "AUTH ", 5) == 0)
+  if (outblock->authenticating)
     {
-    p += 5;
-    while (isspace(*p)) p++;
-    while (!isspace(*p)) p++;
-    while (isspace(*p)) p++;
+    uschar *p = big_buffer;
+    if (Ustrncmp(big_buffer, "AUTH ", 5) == 0)
+      {
+      p += 5;
+      while (isspace(*p)) p++;
+      while (!isspace(*p)) p++;
+      while (isspace(*p)) p++;
+      }
+    while (*p != 0) *p++ = '*';
     }
-  while (*p != 0) *p++ = '*';
-  }
 
-HDEBUG(D_transport|D_acl|D_v) debug_printf("  SMTP>> %s\n", big_buffer);
+  HDEBUG(D_transport|D_acl|D_v) debug_printf("  SMTP>> %s\n", big_buffer);
+  }
 
 if (!noflush)
   {