Follow up on dhclient(8) to dhcpleased(8)/resolvd(8) switch

hostname.if(5)'s "dhcp" no longer triggers dhclient in any way, so suggest
the simple "inet autoconf" instead while mentioning "dhcp" as an alias for
that.

Add markup to changed sentences while here.
There is more room for improvemen in this manual.

Feedback deraadt, "go ahead"

1 files changed, 19 insertions, 24 deletions

diff --git a/share/man/man5/hostname.if.5 b/share/man/man5/hostname.if.5
index a89b4a64841..4d797e66b6b 100644
--- a/share/man/man5/hostname.if.5
+++ b/share/man/man5/hostname.if.5
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: hostname.if.5,v 1.76 2021/03/10 19:19:04 kn Exp $
+.\"	$OpenBSD: hostname.if.5,v 1.77 2021/07/17 15:28:31 kn Exp $
 .\"	$NetBSD: hosts.5,v 1.4 1994/11/30 19:31:20 jtc Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"     @(#)hosts.5	8.2 (Berkeley) 12/11/93
 .\"
-.Dd $Mdocdate: March 10 2021 $
+.Dd $Mdocdate: July 17 2021 $
 .Dt HOSTNAME.IF 5
 .Os
 .Sh NAME
@@ -69,11 +69,19 @@ For example:
 .Bd -literal -offset indent
 nwid mynwid wpakey mywpakey
 inet6 autoconf
-dhcp
+inet autoconf
 .Ed
 .Pp
-would run ifconfig to set the nwid and wpakey of the interface, run it again to set the AUTOCONF6 flag, and then start
-.Xr dhclient 8 .
+would run ifconfig three times to set the
+.Cm nwid
+and
+.Cm wpakey
+of the interface,
+the
+.Sy AUTOCONF6
+flag and the
+.Sy AUTOCONF4
+flag, respectively.
 .Sh STATIC ADDRESS CONFIGURATION
 The following packed formats are valid for configuring network
 interfaces with static addresses.
@@ -226,23 +234,7 @@ up
 .Ed
 .El
 .Sh DYNAMIC ADDRESS CONFIGURATION
-IPv4 dynamic addressing using DHCP can be done in two forms:
-.Pp
-The token
-.Dq dhcp
-followed first by
-.Xr dhclient 8
-options and then by
-.Xr ifconfig 8
-options, which are handled before starting
-.Xr dhclient 8 .
-.Bd -ragged -offset indent
-.Li dhcp
-.Op Va dhclient_options
-.Op Va ifconfig_options
-.Ed
-.Pp
-Alternatively, the literal string
+IPv4 dynamic addressing via DHCP is requested using
 .Dq inet autoconf
 followed by any options to be passed to
 .Xr ifconfig 8 .
@@ -251,6 +243,11 @@ followed by any options to be passed to
 .Op Va ifconfig_options
 .Ed
 .Pp
+The token
+.Dq dhcp
+on its own line without any options is short for
+.Dq inet autoconf .
+.Pp
 IPv6 stateless address autoconfiguration is requested using
 the literal string
 .Dq inet6 autoconf
@@ -288,9 +285,7 @@ up    # and finally enable it
 Interface-specific configuration files.
 .El
 .Sh SEE ALSO
-.Xr dhclient.conf 5 ,
 .Xr hosts 5 ,
-.Xr dhclient 8 ,
 .Xr ifconfig 8 ,
 .Xr netstart 8 ,
 .Xr rc 8 ,