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30 lines
665 B
30 lines
665 B
#!/bin/bash
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################################################################################
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. /etc/grml/lsb-functions
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if [ "$(id -ru)" -ne 0 ] ; then
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echo "Error: please run this script with uid 0 (root)." >&2
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exit 1
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fi
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einfon "Checking network status... "
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STATUS="Offline"
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EXIT_CODE=1
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GW="$(route -n | awk '/^0\.0\.0\.0/{print $2}')"
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GWDEV="$(route -n | awk '/^0\.0\.0\.0/{print $NF}')"
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NMAP="$(nmap -sP --host_timeout 4000 --max_rtt_timeout 4000ms "$GW" 2>/dev/null)"
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if [ $? -eq 0 ]; then
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if ! echo "$NMAP" | grep -q "0 hosts up" ; then
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STATUS="Online (${GWDEV})"
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EXIT_CODE=0
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fi
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fi
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printf "%s\n" "$STATUS"
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eend $EXIT_CODE
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exit $EXIT_CODE
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