83 行
2.8 KiB
Bash
実行ファイル
83 行
2.8 KiB
Bash
実行ファイル
#!/bin/sh -e
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#
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# wifi_quality: display wifi signal quality
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#
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# Copyright (C) 2008 Canonical Ltd.
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# Copyright (C) 2011-2014 Dustin Kirkland
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#
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# Authors: Dustin Kirkland <kirkland@byobu.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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___get_dev_list() {
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if [ -n "$MONITORED_NETWORK" ]; then
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echo "$MONITORED_NETWORK"
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else
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iw dev | grep Interface | cut -f2 -d\
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fi
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}
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__wifi_quality_detail() {
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if eval $BYOBU_TEST iw >/dev/null 2>&1; then
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local dev
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for dev in $(___get_dev_list); do
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iw dev "$dev" info
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iw dev "$dev" link
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echo
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done
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elif eval $BYOBU_TEST iwconfig >/dev/null 2>&1; then
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iwconfig 2>/dev/null
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fi
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}
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__wifi_quality() {
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local out bitrate quality
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if eval $BYOBU_TEST iwconfig >/dev/null 2>&1; then
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# iwconfig is expected to output lines like:
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# Bit Rate=54 Mb/s Tx-Power=15 dBm
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# Link Quality=60/70 Signal level=-50 dBm
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# the awk below tokenizes the output and prints shell evalable results
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out=`iwconfig $MONITORED_NETWORK 2>/dev/null |
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awk '$0 ~ /[ ]*Link Quality./ {
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sub(/.*=/,"",$2); split($2,a,"/");
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printf "quality=%.0f\n", 100*a[1]/a[2] };
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$0 ~ /[ ]*Bit Rate/ { sub(/.*[:=]/,"",$2); printf("bitrate=%s\n", $2); }
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'`
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eval "$out"
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elif eval $BYOBU_TEST iw >/dev/null 2>&1; then
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local dev
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for dev in $(___get_dev_list); do
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# iw is expected to output lines like:
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# signal: -50 dBm
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# rx bitrate: 216.0 MBit/s MCS 13 40MHz
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# signal to quality: https://superuser.com/a/1360447
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out=`iw dev "$dev" link 2>/dev/null |
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awk '$0 ~ /^\s*signal:/ { a = 100 * ($2 + 110) / 70;
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printf "quality=%.0f\n", (a > 100) ? 100 : ((a < 0) ? 0 : a); }
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$0 ~ /^\s*rx bitrate:/ { printf "bitrate=%s\n", $3; }
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'`
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eval "$out"
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[ -z "$bitrate" ] || [ -z "$quality" ] || break
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done
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fi
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[ -n "$bitrate" ] || bitrate=0
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[ -n "$quality" ] || quality=0
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if [ "$bitrate" -gt 0 ] && [ "$quality" -gt 0 ]; then
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printf "${ICON_WIFI}"; color b C k; printf "%s" "$bitrate"; color -; color C k; printf "%s" "$ICON_MBPS"; color -; color b C k; printf "%s" "$quality"; color -; color C k; printf "%s" "$PCT"; color --
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else
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rm -f "$BYOBU_RUN_DIR/status.$BYOBU_BACKEND/wifi_quality"*
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fi
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}
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# vi: syntax=sh ts=4 noexpandtab
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