arrange to tweak send and receive buffer sizes

SCCS-vsn: usr.sbin/sendmail/src/daemon.c 8.12

diff --git a/usr/src/usr.sbin/sendmail/src/daemon.c b/usr/src/usr.sbin/sendmail/src/daemon.c
index b92405a..1f0cb24 100644 (file)
--- a/usr/src/usr.sbin/sendmail/src/daemon.c
+++ b/usr/src/usr.sbin/sendmail/src/daemon.c
@@ -12,9 +12,9 @@
 
 #ifndef lint
 #ifdef DAEMON
 
 #ifndef lint
 #ifdef DAEMON

-static char sccsid[] = "@(#)daemon.c   8.11 (Berkeley) %G% (with daemon mode)";
+static char sccsid[] = "@(#)daemon.c   8.12 (Berkeley) %G% (with daemon mode)";

 #else
 #else

-static char sccsid[] = "@(#)daemon.c   8.11 (Berkeley) %G% (without daemon mode)";
+static char sccsid[] = "@(#)daemon.c   8.12 (Berkeley) %G% (without daemon mode)";

 #endif
 #endif /* not lint */
 
 #endif
 #endif /* not lint */
 


@@ -82,6 +82,8 @@ static FILE   *MailPort;      /* port that mail comes in on */
 int            DaemonSocket    = -1;           /* fd describing socket */
 SOCKADDR       DaemonAddr;                     /* socket for incoming */
 int            ListenQueueSize = 10;           /* size of listen queue */
 int            DaemonSocket    = -1;           /* fd describing socket */
 SOCKADDR       DaemonAddr;                     /* socket for incoming */
 int            ListenQueueSize = 10;           /* size of listen queue */

+int            TcpRcvBufferSize = 0;           /* size of TCP receive buffer */
+int            TcpSndBufferSize = 0;           /* size of TCP send buffer */

 
 getrequests()
 {
 
 getrequests()
 {


@@ -386,6 +388,26 @@ gothostent:
                        goto failure;
                }
 
                        goto failure;
                }
 

+#ifdef SO_SNDBUF
+               if (TcpSndBufferSize > 0)
+               {
+                       if (setsockopt(s, SOL_SOCKET, SO_SNDBUF,
+                                      &TcpSndBufferSize,
+                                      sizeof(TcpSndBufferSize)) < 0)
+                               syserr("makeconnection: setsockopt(SO_SNDBUF)");
+               }
+#endif
+
+#ifdef SO_RCVBUF
+               if (TcpRcvBufferSize > 0)
+               {
+                       if (setsockopt(s, SOL_SOCKET, SO_RCVBUF,
+                                      &TcpRcvBufferSize,
+                                      sizeof(TcpRcvBufferSize)) < 0)
+                               syserr("makeconnection: setsockopt(SO_RCVBUF)");
+               }
+#endif
+

                if (tTd(16, 1))
                        printf("makeconnection: fd=%d\n", s);
 
                if (tTd(16, 1))
                        printf("makeconnection: fd=%d\n", s);