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mirror of https://gitlab.isc.org/isc-projects/dhcp synced 2025-08-31 22:35:25 +00:00

Don't need to compute network number or broadcast address anymore

This commit is contained in:
Ted Lemon
1997-11-20 04:36:13 +00:00
parent c6abd2055c
commit c775ab0429

View File

@@ -21,16 +21,6 @@
# 4. TIMEOUT not tested. ping has a flag I don't know, and I'm suspicious
# of the $1 in its args.
############################################################################
# This horror, which depends on bash, does a bitwise and of the ip
# address and the network mask to produce the network address.
eval `echo $new_ip_address $new_subnet_mask | sed -e 's/\([0-9]\+\).\([0-9]\+\).\([0-9]\+\).\([0-9]\+\) \([0-9]\+\).\([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/new_network_address="$[\1\&\5].$[\2\&\6].$[\3\&\7].$[4\&\8]"/'`
# A similar horror to calculate the broadcast address if it's not given.
if [ x$new_broadcast_address = x ]; then
eval `echo $new_ip_address $new_subnet_mask | sed -e 's/\([0-9]\+\).\([0-9]\+\).\([0-9]\+\).\([0-9]\+\) \([0-9]\+\).\([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/new_broadcast_address="$[(\1\|~\5)\&255].$[(\2\|~\6)\&255].$[(\3\|~\7)\&255].$[(4\|~\8)\&255]"/'`
fi
if [ x$new_broadcast_address != x ]; then
new_broadcast_arg="broadcast $new_broadcast_address"
fi