80 lines
1.5 KiB
Bash
Executable File
80 lines
1.5 KiB
Bash
Executable File
#! /usr/bin/env bash
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# PID file
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PID_FILE="/run/ffhb-update-dns.pid"
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# getting workingdir of scripts
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WORK_DIR="$(dirname $(readlink -nf $0))"
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# set safe path
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PATH="${WORK_DIR}:/sbin:/usr/sbin:/bin:/usr/bin"
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# define variable to count loops
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declare -i NUM=0
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# tmp file
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TMP_FILE="$(mktemp)"
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# if creation of tmp file failed
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# exit
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if [ -z "$TMP_FILE" ]; then
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exit 1
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fi
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# names of zones
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ZONEFILE=/var/cache/bind/ffhb.nodes.zone
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RZONEFILE=/var/cache/bind/arpa.ip6.f.d.2.f.5.1.1.9.0.f.2.c.zone
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# write run file
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if [ -f "$PID_FILE" ]; then
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echo "Script already running!" >&2
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exit 1
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else
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touch "$PID_FILE"
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fi
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# loop until data received
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while true; do
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# increment counter
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NUM=$(($NUM+1))
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# get data from alfred
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timeout -s KILL 30s alfred-json -z -r 158 >"$TMP_FILE" 2>/dev/null
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# on success leave loop
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if [ $? -eq 0 ]; then
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break
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fi
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# if the 120th run has reached kill script
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if [ $NUM -gt 240 ]; then
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# remove tmp file
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rm -f "$TMP_FILE"
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# exit with error code
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exit 1
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fi
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# sleep to be safe CPU load don't getting higher
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sleep 1
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done
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# generate forward zone
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if zonegen.py < "$TMP_FILE" > "${ZONEFILE}.new"; then
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mv "${ZONEFILE}.new" "${ZONEFILE}"
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fi
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# generate reverse zone
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if rzonegen.py 0.0.0.0.c.2.f.0.9.1.1.5.f.2.d.f.ip6.arpa <"$TMP_FILE" >"${RZONEFILE}.new"; then
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mv "${RZONEFILE}.new" "${RZONEFILE}"
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fi
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# reload nameserver
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rndc reload >/dev/null
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# remove tmp file
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rm -f "$TMP_FILE"
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# remove PID file
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rm -f "$PID_FILE"
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