src/etc/rc.sysctl, branch release/4.0.0_cvs

This commit was manufactured by cvs2svn to create tag

2000-03-20T08:47:53+00:00

'RELENG_4_0_0_RELEASE'.

This commit was manufactured to restore the state of the 4.0-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

Add and document support for handling comments and blank lines

2000-01-16T18:12:42+00:00

in /etc/sysctl.conf.

Reviewed by:	imp, jkh

$Id$ -> $FreeBSD$

1999-08-27T23:37:10+00:00

Style clean-up:

1999-08-25T16:01:45+00:00

	* All variables are now embraced: ${foo}

	* All comparisons against some value now take the form:
	  [ "${foo}" ? "value" ]
	  where ? is a comparison operator

	* All empty string tests now take the form:
	  [ -z "${foo}" ]

	* All non-empty string tests now take the form:
	  [ -n "${foo}" ]

Submitted by:	jkh

Add two features:

1999-03-28T20:36:03+00:00

    log_in_vain:
	log_in_vain turns on logging for packets to ports for which
	there is no listener.
    rc.sysctl:
	A generic way to set sysctl values.  It reads /etc/syslog.conf
	and sets values based on that.  No /etc/syslog.conf has been
	checked in yet, and I've not added this to the makefile yet
	until I get more feedback.

Reviewed by: -current, -hackers and bde especially