Annotation of /trunk/mkinitrd-magellan/busybox/examples/var_service/dhcp_if/convert2ipconf

#!/bin/sh
# convert:

# dhcptype=5
# serverid=172.16.42.102
# lease=97200
# interface=eth0
# ip=172.16.42.177
# subnet=255.255.255.0
# mask=24
# broadcast=172.16.22.255
# router=172.16.42.98
# dns=10.34.32.125 10.32.63.5 10.34.255.7 10.11.255.27
# domain=lab.example.com example.com
# ntpsrv=10.34.32.125 10.34.255.7

# into:

#let cfg=cfg+1
#if[$cfg]=...; ip[$cfg]=...; ipmask[$cfg]=.../...; gw[$cfg]=...; net[$cfg]=... dns[$cfg]=...

exec >/dev/null
#exec >"$0.out"  # debug
exec 2>&1

test "$interface" || exit 1
test "$ip" || exit 1

{
echo "let cfg=cfg+1"
test "$interface"	&& echo "if[\$cfg]='$interface'"
test "$ip"		&& echo "ip[\$cfg]='$ip'"
test "$ip" && test "$mask" \
			&& echo "ipmask[\$cfg]='$ip/$mask'"
test "$router"		&& echo "gw[\$cfg]='$router'"
test "$dns"		&& echo "dns[\$cfg]='$dns'"
# TODO: I never saw a dhcp server which correctly announces
# which subnet(s) is/are available thru advertised router
# Assume 0/0
echo "net[\$cfg]='0/0'"
} >"$1"
1	niro	984	#!/bin/sh
2			# convert:
3
4			# dhcptype=5
5			# serverid=172.16.42.102
6			# lease=97200
7			# interface=eth0
8			# ip=172.16.42.177
9			# subnet=255.255.255.0
10			# mask=24
11			# broadcast=172.16.22.255
12			# router=172.16.42.98
13			# dns=10.34.32.125 10.32.63.5 10.34.255.7 10.11.255.27
14			# domain=lab.example.com example.com
15			# ntpsrv=10.34.32.125 10.34.255.7
16
17			# into:
18
19			#let cfg=cfg+1
20			#if[$cfg]=...; ip[$cfg]=...; ipmask[$cfg]=.../...; gw[$cfg]=...; net[$cfg]=... dns[$cfg]=...
21
22			exec >/dev/null
23			#exec >"$0.out" # debug
24			exec 2>&1
25
26			test "$interface" \|\| exit 1
27			test "$ip" \|\| exit 1
28
29			{
30			echo "let cfg=cfg+1"
31			test "$interface" && echo "if[\$cfg]='$interface'"
32			test "$ip" && echo "ip[\$cfg]='$ip'"
33			test "$ip" && test "$mask" \
34			&& echo "ipmask[\$cfg]='$ip/$mask'"
35			test "$router" && echo "gw[\$cfg]='$router'"
36			test "$dns" && echo "dns[\$cfg]='$dns'"
37			# TODO: I never saw a dhcp server which correctly announces
38			# which subnet(s) is/are available thru advertised router
39			# Assume 0/0
40			echo "net[\$cfg]='0/0'"
41			} >"$1"