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54 lines
1.2 KiB
Bash
54 lines
1.2 KiB
Bash
# CIS Debian 7 Hardening Utility functions
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#
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# Return if a package is installed
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# @param $1 package name
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#
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is_installed()
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{
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PKG_NAME=$1
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if `dpkg -s $PKG_NAME 2> /dev/null | grep -q '^Status: install '` ; then
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return 0
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fi
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return 1
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}
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# contains helper functions to work with apt
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apt_update_if_needed()
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{
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if [ -e /var/cache/apt/pkgcache.bin ]
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then
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UPDATE_AGE=$(( $(date +%s) - $(stat -c '%Y' /var/cache/apt/pkgcache.bin) ))
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if [ $UPDATE_AGE -gt 21600 ]
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then
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# update too old, refresh database
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apt-get update -y >/dev/null 2>/dev/null
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fi
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else
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apt-get update -y >/dev/null 2>/dev/null
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fi
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}
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apt_check_updates()
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{
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local NAME="$1"
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local DETAILS="/dev/shm/${NAME}"
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LANGUAGE=C apt-get upgrade -s 2>/dev/null | grep -E "^Inst" > $DETAILS || :
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local COUNT=$(wc -l < "$DETAILS")
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FNRET=128 # Unknown function return result
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RESULT="" # Result output for upgrade
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if [ $COUNT -gt 0 ]; then
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RESULT="There is $COUNT updates available :\n$(cat $DETAILS)"
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FNRET=1
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else
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RESULT="OK, no updates available"
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FNRET=0
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fi
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rm $DETAILS
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}
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