54 lines
1.2 KiB
Bash
Executable File
54 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# convert:
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# dhcptype=5
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# serverid=172.16.42.102
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# lease=97200
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# interface=eth0
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# ip=172.16.42.177
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# subnet=255.255.255.0
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# mask=24
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# broadcast=172.16.22.255
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# router=172.16.42.98
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# dns=10.34.32.125 10.32.63.5 10.34.255.7 10.11.255.27
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# domain=lab.example.com example.com
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# ntpsrv=10.34.32.125 10.34.255.7
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# into:
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#let cfg=cfg+1
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#if[$cfg]=...; ip[$cfg]=...; ipmask[$cfg]=.../...; gw[$cfg]=...; net[$cfg]=... dns[$cfg]=...
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exec >"$0.out" 2>&1
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test "$interface" || exit 1
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test -f "$1" || exit 1
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# Unsafe, and does not handle values with spaces:
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#. "./$1" || exit 1
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# Safe(r) parsing:
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sq="'"
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while read line; do
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#echo "line: $line"
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# Skip empty lines and lines with single quotes
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test "${line##*$sq*}" || continue
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var="${line%%=*}"
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val="${line#*=}"
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#echo "var:$var val:'$val'"
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eval "$var='$val'"
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done <"$1"
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{
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echo "let cfg=cfg+1"
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test "$interface" && echo "if[\$cfg]='$interface'"
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test "$ip" && echo "ip[\$cfg]='$ip'"
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test "$ip" && test "$mask" \
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&& echo "ipmask[\$cfg]='$ip/$mask'"
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test "$router" && echo "gw[\$cfg]='$router'"
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test "$dns" && echo "dns[\$cfg]='$dns'"
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# TODO: I never saw a dhcp server which correctly announces
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# which subnet(s) is/are available thru advertised router
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# Assume 0/0
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echo "net[\$cfg]='0/0'"
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} >"$2"
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