From d1f2db71733268da8097db02326e7f5332671f86 Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Tue, 15 Sep 2009 08:57:32 +0000
Subject: setup-alpine: add the hostname to /etc/hosts

---
 setup-alpine.in | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/setup-alpine.in b/setup-alpine.in
index 3472f53..712a950 100644
--- a/setup-alpine.in
+++ b/setup-alpine.in
@@ -6,6 +6,16 @@ VERSION=@VERSION@
 PREFIX=
 . $PREFIX/lib/libalpine.sh
 
+# Extract fully qualified domain name from current hostname. If none is
+# currently set, use 'my.domain'.
+get_fqdn() {
+	local _dn
+	_dn=$(hostname -f 2>/dev/null)
+	_dn=${_dn#$(hostname -s 2>/dev/null)}
+	_dn=${_dn#.}
+	echo "${_dn:=my.domain}"
+}
+
 while getopts "ah" opt ; do
 	case $opt in
 		a) ARCHIVE=yes;;
@@ -42,3 +52,16 @@ rc-update -q add networking boot
 rc boot
 rc default
 
+# update /etc/hosts - after we have got dhcp address
+# Get default fully qualified domain name from *first* domain
+# given on *last* search or domain statement.
+_dn=$(sed -n \
+-e '/^domain[[:space:]][[:space:]]*/{s///;s/\([^[:space:]]*\).*$/\1/;h;}' \
+-e '/^search[[:space:]][[:space:]]*/{s///;s/\([^[:space:]]*\).*$/\1/;h;}' \
+-e '${g;p;}' /etc/resolv.conf 2>/dev/null)
+
+_hn=$(hostname)
+_hn=${_hn%%.*}
+
+sed -i -e "s/^127\.0\.0\.1.*/127.0.0.1\t${_hn}.${_dn:-$(get_fqdn)} ${_hn} localhost.localdomain localhost/" /etc/hosts
+
-- 
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