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Merge pull request #206 from ErezBinyamin/master

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process special (uid,gid,sticky) executable bits
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Igor Chubin 2020-06-03 09:06:32 +02:00 committed by GitHub
commit f5d5fae712
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1 changed files with 21 additions and 8 deletions
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29
share/adapters/chmod.sh
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@ -11,7 +11,6 @@ chmod_calc(){
R=()
W=()
X=()
S=()
setuid=' '
setgid=' '
sticky=' '
@ -22,31 +21,46 @@ chmod_calc(){
for (( i=0; i<${#1}; i++ ))
do
num=$(echo "obase=2;${1:$i:1}" | bc | xargs printf '%03d')
# If 4 digit input, process specials
if [[ ${#1} -eq 4 && $i -eq 0 ]]
then
[ ${num:0:1} -eq 1 ] && setuid='X' || setuid=' '
[ ${num:1:1} -eq 1 ] && setgid='X' || setgid=' '
[ ${num:2:1} -eq 1 ] && sticky='X' || sticky=' '
else
# Build p_s string
[ ${num:0:1} -eq 1 ] && p_s+='r' || p_s+='-'
[ ${num:1:1} -eq 1 ] && p_s+='w' || p_s+='-'
if [[ $sticky == 'X' ]]
# Use sS or tT instead of x- according to specials
if [[ $i -eq 1 && $setuid == 'X' ]]
then
[ ${num:2:1} -eq 1 ] && p_s+='s' || p_s+='S'
elif [[ $i -eq 2 && $setgid == 'X' ]]
then
[ ${num:2:1} -eq 1 ] && p_s+='s' || p_s+='S'
elif [[ $i -eq 3 && $sticky == 'X' ]]
then
[ ${num:2:1} -eq 1 ] && p_s+='t' || p_s+='T'
else
[ ${num:2:1} -eq 1 ] && p_s+='x' || p_s+='-'
fi
# Populate arrays for the table
[ ${num:0:1} -eq 1 ] && R+=('X') || R+=(' ')
[ ${num:1:1} -eq 1 ] && W+=('X') || W+=(' ')
[ ${num:2:1} -eq 1 ] && X+=('X') || X+=(' ')
fi
done
# If permission string is given calc number
elif [[ ${#1} -le 9 && $(( ${#1} % 3 )) -eq 0 && $1 =~ ^[r,t,T,w,x,-]+$ ]]
elif [[ ${#1} -le 9 && $(( ${#1} % 3 )) -eq 0 && $1 =~ ^[r,s,S,t,T,w,x,-]+$ ]]
then
p_s=$1
[[ ${p_s,,} =~ 's' ]] && p_n+="1" || p_n+="0"
[[ ${p_s,,} =~ 's' ]] && sticky='X'
num=0
# Process specials
[[ 'sS' =~ ${p_s:2:1} ]] && setuid='X' && num=$((num+4))
[[ 'sS' =~ ${p_s:5:1} ]] && setgid='X' && num=$((num+2))
[[ 'tT' =~ ${p_s:8:1} ]] && sticky='X' && num=$((num+1))
[ ${num} -gt 0 ] && p_n+="$num"
# Calculate rest of p_n number while populating arrays for table
for (( i=0; i<${#1}; i+=0 ))
do
num=0
@ -56,9 +70,8 @@ chmod_calc(){
[[ ${1:$i:1} == 'w' ]] && W+=('X') || W+=(' ')
[[ ${1:$((i++)):1} == 'w' ]] && let num++
num=$(( num << 1 ))
[[ 'xt' =~ ${1:$i:1} ]] && X+=('X') || X+=(' ')
[[ 'Tt' =~ ${1:$i:1} ]] && S+=('X') || S+=(' ')
[[ 'xt' =~ ${1:$((i++)):1} ]] && let num++
[[ 'stx' =~ ${1:$i:1} ]] && X+=('X') || X+=(' ')
[[ 'stx' =~ ${1:$((i++)):1} ]] && let num++
p_n+="$num"
done
else