71 lines
2.2 KiB
Makefile
71 lines
2.2 KiB
Makefile
# @(#) Banners.Makefile 1.3 97/02/12 02:13:18
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#
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# Install this file as the Makefile in your directory with banner files.
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# It will convert a prototype banner text to a form that is suitable for
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# the ftp, telnet, rlogin, and other services.
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#
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# You'll have to comment out the IN definition below if your daemon
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# names don't start with `in.'.
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#
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# The prototype text should live in the banners directory, as a file with
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# the name "prototype". In the prototype text you can use %<character>
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# sequences as described in the hosts_access.5 manual page (`nroff -man'
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# format). The sequences will be expanded while the banner message is
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# sent to the client. For example:
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#
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# Hello %u@%h, what brings you here?
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#
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# Expands to: Hello username@hostname, what brings you here? Note: the
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# use of %u forces a client username lookup.
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#
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# In order to use banners, build the tcp wrapper with -DPROCESS_OPTIONS
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# and use hosts.allow rules like this:
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#
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# daemons ... : clients ... : banners /some/directory ...
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#
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# Of course, nothing prevents you from using multiple banner directories.
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# For example, one banner directory for clients that are granted service,
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# one banner directory for rejected clients, and one banner directory for
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# clients with a hostname problem.
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#
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SHELL = /bin/sh
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IN = in.
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BANNERS = $(IN)telnetd $(IN)ftpd $(IN)rlogind # $(IN)fingerd $(IN)rshd
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all: $(BANNERS)
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$(IN)telnetd: prototype
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cp prototype $@
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chmod 644 $@
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$(IN)ftpd: prototype
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sed 's/^/220-/' prototype > $@
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chmod 644 $@
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$(IN)rlogind: prototype nul
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( ./nul ; cat prototype ) > $@
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chmod 644 $@
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# Other services: banners may interfere with normal operation
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# so they should probably be used only when refusing service.
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# In particular, banners don't work with standard rsh daemons.
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# You would have to use an rshd that has built-in tcp wrapper
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# support, for example the rshd that is part of the logdaemon
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# utilities.
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$(IN)fingerd: prototype
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cp prototype $@
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chmod 644 $@
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$(IN)rshd: prototype nul
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( ./nul ; cat prototype ) > $@
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chmod 644 $@
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# In case no /dev/zero available, let's hope they have at least
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# a C compiler of some sort.
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nul:
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echo 'main() { write(1,"",1); return(0); }' >nul.c
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$(CC) $(CFLAGS) -s -o nul nul.c
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rm -f nul.c
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