| 1 | #!/bin/sh |
| 2 | |
| 3 | awk -f /usr/lib/common.awk -f - $* <<EOF |
| 4 | BEGIN { |
| 5 | ipaddr=ip2int(ARGV[1]) |
| 6 | netmask=ip2int(ARGV[2]) |
| 7 | network=and(ipaddr,netmask) |
| 8 | broadcast=or(network,compl(netmask)) |
| 9 | |
| 10 | start=or(network,and(ip2int(ARGV[3]),compl(netmask))) |
| 11 | limit=network+1 |
| 12 | if (start<limit) start=limit |
| 13 | |
| 14 | end=start+ARGV[4] |
| 15 | limit=or(network,compl(netmask))-1 |
| 16 | if (end>limit) end=limit |
| 17 | |
| 18 | print "IP="int2ip(ipaddr) |
| 19 | print "NETMASK="int2ip(netmask) |
| 20 | print "BROADCAST="int2ip(broadcast) |
| 21 | print "NETWORK="int2ip(network) |
| 22 | print "PREFIX="32-bitcount(compl(netmask)) |
| 23 | |
| 24 | # range calculations: |
| 25 | # ipcalc <ip> <netmask> <start> <num> |
| 26 | |
| 27 | if (ARGC > 3) { |
| 28 | print "START="int2ip(start) |
| 29 | print "END="int2ip(end) |
| 30 | } |
| 31 | } |
| 32 | EOF |
| 33 | |
