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33 lines
688 B
Bash
33 lines
688 B
Bash
#!/bin/sh
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awk -f /usr/lib/common.awk -f - $* <<EOF
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BEGIN {
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ipaddr=ip2int(ARGV[1])
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netmask=ip2int(ARGV[2])
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network=and(ipaddr,netmask)
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broadcast=or(network,compl(netmask))
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start=or(network,and(ip2int(ARGV[3]),compl(netmask)))
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limit=network+1
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if (start<limit) start=limit
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end=start+ARGV[4]
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limit=or(network,compl(netmask))-1
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if (end>limit) end=limit
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print "IP="int2ip(ipaddr)
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print "NETMASK="int2ip(netmask)
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print "BROADCAST="int2ip(broadcast)
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print "NETWORK="int2ip(network)
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print "PREFIX="32-bitcount(compl(netmask))
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# range calculations:
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# ipcalc <ip> <netmask> <start> <num>
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if (ARGC > 3) {
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print "START="int2ip(start)
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print "END="int2ip(end-1)
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}
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}
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EOF
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