# @(#) Banners.Makefile 1.3 97/02/12 02:13:18

#

# Install this file as the Makefile in your directory with banner files.

# It will convert a prototype banner text to a form that is suitable for

# the ftp, telnet, rlogin, and other services.

#

# You'll have to comment out the IN definition below if your daemon

# names don't start with `in.'.

#

# The prototype text should live in the banners directory, as a file with

# the name "prototype". In the prototype text you can use %<character>

# sequences as described in the hosts_access.5 manual page (`nroff -man'

# format). The sequences will be expanded while the banner message is

# sent to the client. For example:

#

# Hello %u@%h, what brings you here?

#

# Expands to: Hello username@hostname, what brings you here? Note: the

# use of %u forces a client username lookup.

#

# In order to use banners, build the tcp wrapper with -DPROCESS_OPTIONS

# and use hosts.allow rules like this:

#

# daemons ... : clients ... : banners /some/directory ...

#

# Of course, nothing prevents you from using multiple banner directories.

# For example, one banner directory for clients that are granted service,

# one banner directory for rejected clients, and one banner directory for

# clients with a hostname problem.

#

SHELL = /bin/sh

IN = in.

BANNERS = $(IN)telnetd $(IN)ftpd $(IN)rlogind # $(IN)fingerd $(IN)rshd

all: $(BANNERS)

$(IN)telnetd: prototype

cp prototype $@

chmod 644 $@

$(IN)ftpd: prototype

sed 's/^/220-/' prototype > $@

chmod 644 $@

$(IN)rlogind: prototype nul

( ./nul ; cat prototype ) > $@

chmod 644 $@

# Other services: banners may interfere with normal operation

# so they should probably be used only when refusing service.

# In particular, banners don't work with standard rsh daemons.

# You would have to use an rshd that has built-in tcp wrapper

# support, for example the rshd that is part of the logdaemon

# utilities.

$(IN)fingerd: prototype

cp prototype $@

chmod 644 $@

$(IN)rshd: prototype nul

( ./nul ; cat prototype ) > $@

chmod 644 $@

# In case no /dev/zero available, let's hope they have at least

# a C compiler of some sort.

nul:

echo 'main() { write(1,"",1); return(0); }' >nul.c

$(CC) $(CFLAGS) -s -o nul nul.c

rm -f nul.c