Implemented a "-D" option that causes ftpd to detach and become a daemon -

accepting connections on the FTP port and forking children processes to
handling them. This is lower overhead than spawning ftpd from inetd and
can be a significant win on busy FTP servers. Be sure to disable ftpd in
inetd.conf if you decide to use this option.
These changes are based on similar changes I made to wu-ftpd and have
been in use on wcarchive for several months.

1 files changed, 12 insertions, 0 deletions

diff --git a/libexec/ftpd/ftpd.8 b/libexec/ftpd/ftpd.8
index 6e5b199cbfd3..8cd69027cfeb 100644
--- a/libexec/ftpd/ftpd.8
+++ b/libexec/ftpd/ftpd.8
@@ -41,6 +41,7 @@ Internet File Transfer Protocol server
 .Sh SYNOPSIS
 .Nm ftpd
 .Op Fl dl
+.Op Fl D
 .Op Fl S
 .Op Fl U
 .Op Fl T Ar maxtimeout
@@ -68,6 +69,16 @@ session is logged using syslog with a facility of LOG_FTP.
 If this option is specified twice, the retrieve (get), store (put), append,
 delete, make directory, remove directory and rename operations and
 their filename arguments are also logged.
+.It Fl D
+With this option set,
+.Nm ftpd
+will detach and become a daemon, accepting connections on the FTP port and
+forking children processes to handle them. This is lower overhead than
+starting
+.Nm ftpd
+from
+.Xr inetd 8
+and is thus useful on busy servers to reduce load.
 .It Fl S
 With this option set,
 .Nm ftpd
@@ -295,6 +306,7 @@ Log file for anonymous transfers.
 .Sh SEE ALSO
 .Xr ftp 1 ,
 .Xr getusershell 3 ,
+.Xr inetd 8 ,
 .Xr syslogd 8
 .Sh BUGS
 The server must run as the super-user