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#! /bin/sh
# This was an intermediate step in the development of this script, and I
# think it should be preserved as an example of the raw power of sed :
#
#if id=`sed -n -e 's/#.*//' \
# -e '/[ ]79\/tcp/{' \
# -e 's/^[ ]*\([^ ]*\)[ ]*79\/tcp.*$/\1/' \
# -e 'p' \
# -e '}' < /etc/services`; then
#
# Basically, this script expects the full path to the finger daemon as
# $1, the full path to awk in $2, the full path to sed in $3. Then it
# looks in /etc/services for the finger service, if it does not find it,
# it adds it. Then it looks in /etc/inetd.conf for the finger entry,
# commenting it out if it is found. Then an entry for the new finger
# daemon is added.
# First rule of programming: The User Is Evil
# Check that the command line arguments are OK
if test g"$1" = g -o g"$2" = g -o g"$3" = g -o g"$4" = g ; then
echo "Please use \"make install.all\" to run this script."
exit 2
fi
for i in "$1" "$2" "$3" "$4"; do
if test ! -x "$i"; then
echo "$i does not exist or is not executable !"
exit 3
fi
done
#
# Go through /etc/services, removing comments, looking for the line with
# [whitespace]79/tcp. Save that line into $id. Fail if sed didn't like
# my code or had a non-zero exit code.
#
if id=`$3 -n -e 's/#.*//' \
-e '/[ ]79\/tcp/p' < /etc/services`; then
if test g"$id" != g ; then
echo Finger service found in /etc/services, identifier is \"$id\"
else
echo Finger service not found in /etc/services
echo adding \"finger 79/tcp\" ...
echo >> /etc/services
echo "finger 79/tcp" >> /etc/services
id="finger"
fi
else
echo "sed did not like my script :("
echo "Consider installing GNU sed."
exit 1
fi
#
# Now move /etc/inetd.conf to /etc/inetd.conf.backup. If that fails,
# bail out. Otherwise run $2 (/usr/bin/awk) with the environment
# variable BINARY=$1 (/usr/sbin/fingerd), feeding in the original
# inetd.conf file and writing the result to /etc/inetd.conf. This awk
# script matches all lines with one of the aliases from the
# /etc/services finger entry we found, comments them out, and outputs
# a new line with our new finger daemon behind it.
#
if mv /etc/inetd.conf /etc/inetd.conf.backup; then
if BINARY="$1" K="$id" $2 'BEGIN{ split(ENVIRON["K"],k); notfound=1; \
for (i in k) a[k[i]]=1; delete a["79/tcp"]; } \
{ if ($1 in a) \
{ print "# " $0 "\n" k[1] " stream tcp nowait nobody " \
ENVIRON["BINARY"] " fingerd"; \
notfound=0;
}
else print $0;
} \
END { if (notfound) \
print k[1] " stream tcp nowait nobody " ENVIRON["BINARY"] \
" fingerd"; }' < /etc/inetd.conf.backup > /etc/inetd.conf; then
echo "edited /etc/inetd.conf successfully";
else
echo "awk did not like my script :("
echo "Consider installing mawk or GNU awk"
mv -f /etc/inetd.conf.backup /etc/inetd.conf
exit 1
fi
else
echo "Sorry, could not edit /etc/inetd.conf";
exit 1
fi
#
# Send inetd a hangup if we find the inetd.pid file
#
if test -f /etc/inetd.pid; then
kill -1 `cat /etc/inetd.pid`
else
if test -f /var/run/inetd.pid; then
kill -1 `cat /var/run/inetd.pid`
else
if test -f /usr/etc/inetd.pid; then
kill -1 `cat /usr/etc/inetd.pid`
else
if test `/bin/uname` = HP-UX; then
/etc/inetd -c
else
if test $4 != none; then
$4 -1 inetd
else
echo "I could not locate inetd.pid, please kill -1 inetd yourself."
fi
fi
fi
fi
fi
|
