Remove setuid root from lp*. lpr needs to be setuid daemon so the

files it creates are not owned by the user spooling them but the
others (lpc, lpq, lprm) can get away with setgid daemon.  lpd runs
as user daemon for most things, only changing its uid to 0 for
things that must be done as root.

For the time being, don't require connections to come from a reserved
port since lpq/lpr/lprm can't acquire that w/o setuid root.  In the
near future we will have a mechanism for select non-root processes
to grab reserved ports.

The upshot of this is that spool directories must be writable by
group daemon and the files within the spool dirs must be owned by
daemon.

1 files changed, 9 insertions, 8 deletions

diff --git a/usr.sbin/lpr/SMM.doc/4.t b/usr.sbin/lpr/SMM.doc/4.t
index 61f50513ca2..ac25492a897 100644
--- a/usr.sbin/lpr/SMM.doc/4.t
+++ b/usr.sbin/lpr/SMM.doc/4.t
@@ -1,4 +1,4 @@
-.\" $OpenBSD: 4.t,v 1.3 2002/05/18 23:03:04 millert Exp $
+.\" $OpenBSD: 4.t,v 1.4 2002/06/08 01:53:43 millert Exp $
 .\"
 .\" Copyright (c) 1983, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -36,10 +36,10 @@
 .NH 1
 Setting up
 .PP
-The 4.3BSD release comes with the necessary programs 
+OpenBSD comes with the necessary programs 
 installed and with the default line printer queue
 created.  If the system must be modified, the
-makefile in the directory /usr/src/usr.sbin/lpr
+Makefile in the directory /usr/src/usr.sbin/lpr
 should be used in recompiling and reinstalling
 the necessary programs.
 .PP
@@ -65,11 +65,11 @@ Printers on serial lines
 When a printer is connected via a serial communication line
 it must have the proper baud rate and terminal modes set.
 The following example is for a DecWriter III printer connected
-locally via a 1200 baud serial line.
+locally via a 9600 baud serial line.
 .DS
 .DT
 lp|LA-180 DecWriter III:\e
-	:lp=/dev/lp:br#1200:fs#06320:\e
+	:lp=/dev/lp:br#9600:ms=onlcr,oxtabs,-parity:\e
 	:tr=\ef:of=/usr/libexec/lpr/lpf:lf=/var/log/lpd-errs:
 .DE
 The
@@ -79,8 +79,9 @@ be left out since ``/dev/lp'' is the default.
 The
 .B br
 entry sets the baud rate for the tty line and the
-.B fs
-entry sets CRMOD, no parity, and XTABS (see \fItty\fP\|(4)).
+.B ms
+entry sets NL to CR-NL mapping, expansion of tabs to spaces,
+and disables parity (see \fIstty\fP\|(1)).
 The
 .B tr
 entry indicates that a form-feed should be printed when the queue
@@ -162,7 +163,7 @@ used in printing \fItroff\fP\|(1) output.
 This filter is needed to set the device into print mode
 for text, and plot mode for printing
 .I troff
-files and raster images (see \fIva\fP\|(4V)).
+files and raster images (see \fIva\fP\|(4)).
 Note that the page length is set to 58 lines by the
 .B pl
 entry for 8.5" by 11" fan-fold paper.