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#!/bin/sh
#
# Generate fake process accounting data via the package's installed
# service defitions and sanity check the output from lastcomm.
#set -x
set -e
FILE=/var/log/account/pacct
fail () { echo $1 >&2; exit 1; }
# Stop process accounting if it has already started
service acct stop >/dev/null 2>/dev/null || true
[ ! -s "$FILE" ] || truncate --size 0 "$FILE"
# Install test library
cp -a debian/tests/src $AUTOPKGTEST_TMP
cd $AUTOPKGTEST_TMP
make -C src
install -t /usr/local/bin src/gen-acct
install -t /usr/local/lib src/fake-acct.so
echo "/usr/local/lib/fake-acct.so" >> /etc/ld.so.preload
# Start fake process accounting
[ ! -s "$FILE" ] || fail "pacct already populated"
service acct start 2>&1
sleep 5
[ -f "$FILE" ] || fail "pacct did not get created"
sleep 20
service acct stop 2>&1
[ -s "$FILE" ] || fail "pacct did not grow"
sleep 5
sz=$(stat -c %b "$FILE")
sleep 10
[ "$sz" = $(stat -c %b "$FILE") ] || fail "psacct did not stop growing"
lastcomm > lastcomm.out 2> lastcomm.err
echo "First 5 lines of $(wc -l < lastcomm.out) from lastcomm:"
head -n5 lastcomm.out | cat -n
[ $(wc -l < lastcomm.out) -gt 10 ] || fail "lastcomm output too short"
if [ -s lastcomm.err ]
then
echo "Error output from lastcomm:"
cat lastcomm.err | cat -n
exit 1
fi
cat lastcomm.out | cut -d\ -f1 > lastprocs
cat lastprocs | sort | uniq > a
ls /usr/bin > b1
ls /usr/sbin > b2
cat b1 b2 | cut -c1-16 | sort | uniq > b
echo "Some system binaries included in lastcomm output:"
comm -1 -2 a b | head -n5 | cat -n
common=$(comm -1 -2 -3 --total a b | cut -f3)
[ $common -gt 5 ] || fail "too few system binaries feature in lastcomm output"
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