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ffac-ssid-changer: replace string indexing #55

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Nov 20, 2023
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ffac-ssid-changer: replace string indexing #55

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8 changes: 4 additions & 4 deletions ffac-ssid-changer/shsrc/ssid-changer.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -55,11 +55,11 @@ if [ "$SETTINGS_SUFFIX" = 'nodename' ]; then
# 32 would be possible as well
if [ ${#SUFFIX} -gt $((30 - ${#PREFIX})) ]; then
# calculate the length of the first part of the node identifier in the offline-ssid
HALF=$(( (28 - ${#PREFIX} ) / 2 ))
# jump to this charakter for the last part of the name
SKIP=$(( ${#SUFFIX} - HALF ))
max_suffix_length=$(( (28 - ${#PREFIX} ) / 2 ))
# use the first and last part of the nodename for nodes with long name
SUFFIX=${SUFFIX:0:$HALF}...${SUFFIX:$SKIP:${#SUFFIX}}
suffix_first_chars="$(printf '%s' "$SUFFIX" | head -c ${max_suffix_length})"
suffix_last_chars="$(printf '%s' "$SUFFIX" | tail -c ${max_suffix_length})"
SUFFIX="${suffix_first_chars}...${suffix_last_chars}"
fi
elif [ "$SETTINGS_SUFFIX" = 'mac' ]; then
SUFFIX="$(uci -q get network.bat0.macaddr | /bin/sed 's/://g')"
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