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Fabio Scotto di Santolo
2020-07-28 19:28:25 +02:00
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119
chapter17/function_check_exceptions Executable file
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function check_exceptions
{
# set -x # Uncomment to debug this function
while read FSNAME FSLIMIT
do
IN_FILE="N"
# Do an NFS sanity check and get rid of any .:..
# If this is found it is actually an error entry
# but we will try to resolve it. It will only
# work if it is an NFS cross mount to the same
# mount point on both machines.
$ECHO $FSNAME | grep ':' >/dev/null \
&& FSNAME=$($ECHO $FSNAME | cut -d ':' -f2)
# Check for empty and null variable
if [[ ! -z $FSLIMIT && $FSLIMIT != '' ]]
then
if [[ $FSNAME = $FSMOUNT ]] # Found it!
then
# Check for "MB" Characters...Set IN_FILE=MB
$ECHO $FSLIMIT | grep MB >/dev/null && IN_FILE="MB" \
&& (( FSLIMIT = $($ECHO $FSLIMIT \
| sed s/MB//g) * 1024 ))
# check for '%' Character...Set IN_FILE=PC, for %
$ECHO $FSLIMIT | grep '%' >/dev/null && IN_FILE="PC" \
&& FSLIMIT=$($ECHO $FSLIMIT | sed s/\%//g)
case $IN_FILE in
MB) # Use MB of Free Space Method
# Up-case the characters, if they exist
FSLIMIT=$($ECHO $FSLIMIT | tr '[a-z]' '[A-Z]')
# Get rid of the 'MB' if it exists
FSLIMIT=$($ECHO $FSLIMIT | sed s/MB//g)
# Test for blank and null values
if [[ ! -z $FSLIMIT && $FSLIMIT != '' ]]
then
# Test for a valid filesystem 'MB' limit
if (( FSLIMIT >= 0 && FSLIMIT < FSSIZE ))
then
if (( FSMB_FREE < FSLIMIT ))
then
return 1 # Found out of limit
# using MB Free method
else
return 3 # Found OK
fi
else
$ECHO "\nERROR: Invalid filesystem MAX for\
$FSMOUNT - $FSLIMIT"
$ECHO " Exceptions file value must be less\
than or"
$ECHO " equal to the size of the filesystem\
measured"
$ECHO " in 1024 bytes\n"
fi
else
$ECHO "\nERROR: Null value specified in exceptions\
file"
$ECHO " for the $FSMOUNT mount point.\n"
fi
;;
PC) # Use Filesystem %Used Method
# Strip out the % sign if it exists
PC_USED=$($ECHO $PC_USED | sed s/\%//g)
# Test for blank and null values
if [[ ! -z "$FSLIMIT" && "$FSLIMIT" != '' ]]
then
# Test for a valid percentage, i.e. 0-100
if (( FSLIMIT >= 0 && FSLIMIT <= 100 ))
then
if (( $PC_USED > $FSLIMIT ))
then
return 2 # Found exceeded by % Used method
else
return 3 # Found OK
fi
else
$ECHO "\nERROR: Invalid percentage for $FSMOUNT -\
$FSLIMIT"
$ECHO " Exceptions file values must be"
$ECHO " between 0 and 100%\n"
fi
else
$ECHO "\nERROR: Null value specified in exceptions\
file"
$ECHO " for the $FSMOUNT mount point.\n"
fi
;;
N) # Method Not Specified - Use Script Defaults
if (( FSSIZE >= FSTRIGGER ))
then # This is a "large" filesystem
if (( FSMB_FREE < MIN_MB_FREE ))
then
return 1 # Found out of limit
# using MB Free method
else
return 3 # Found OK
fi
else # This is a standard filesystem
PC_USED=$($ECHO $PC_USED | sed s/\%//g) # Remove %
FSLIMIT=$($ECHO $FSLIMIT | sed s/\%//g) # Remove %
if (( PC_USED > FSLIMIT ))
then
return 2 # Found exceeded by % Used method
else
return 3 # Found OK
fi
fi
;;
esac
fi
fi
done < $DATA_EXCEPTIONS # Feed the loop from the bottom!!!
return 4 # Not found in $EXCEPTIONS file
}