postinst is in twoftpd-run 1.41-1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | #!/bin/sh
set -e
test "$1" = 'configure' || exit 0
getent passwd ftp >/dev/null || \
adduser --system --home /var/ftp --no-create-home ftp
getent passwd ftplog >/dev/null || \
adduser --system --home /nonexistent --no-create-home ftplog
READD=twoftpd
test -z "$2" || dpkg --compare-versions "$2" gt '1.21-4' || {
update-service --remove /etc/twoftpd 2>/dev/null || :
if update-service --check twoftpd-anon; then
update-service --remove /etc/twoftpd-anon || :
READD=twoftpd-anon
fi
sleep 6
for i in twoftpd twoftpd-anon; do
rm -rf /var/run/$i /var/run/$i.log
done
}
update-service --add /etc/$READD
test -z "$2" || exit 0
# new install
chown ftplog:adm /var/log/twoftpd /var/log/twoftpd-anon
chmod 2750 /var/log/twoftpd /var/log/twoftpd-anon
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