3 # os.sh - operating system specifics
6 # This file is included at the start of processing. Its role is
7 # to set the variables OS, OSREL, OSMAJOR, MACHINE and MACHINE_ARCH to
8 # reflect the current system.
10 # It also sets variables such as MAILER, LOCAL_FS, PS_AXC to hide
11 # certain aspects of different UNIX flavours.
17 # Simon J. Gerraty <sjg@crufty.net>
20 # $Id: os.sh,v 1.44 2010/06/29 15:37:21 sjg Exp $
22 # @(#) Copyright (c) 1994 Simon J. Gerraty
24 # This file is provided in the hope that it will
25 # be of use. There is absolutely NO WARRANTY.
26 # Permission to copy, redistribute or otherwise
27 # use this file is hereby granted provided that
28 # the above copyright notice and this notice are
31 # Please send copies of changes and bug-fixes to:
35 # this lets us skip sourcing it again
40 OSMAJOR=`IFS=.; set $OSREL; echo $1`
42 MACHINE_ARCH=`uname -p 2>/dev/null || echo $MACHINE`
44 # there is at least one case of `uname -p` outputting
45 # a bunch of usless drivel
46 case "$MACHINE_ARCH" in
47 *[!A-Za-z0-9_-]*) MACHINE_ARCH="$MACHINE";;
50 # we need this here, and it is not always available...
57 /*) test $t $1 && echo $1;;
59 # some shells cannot correctly handle `IFS`
60 # in conjunction with the for loop.
61 _dirs=`IFS=:; echo ${2:-$PATH}`
64 test $t $d/$1 && { echo $d/$1; break; }
70 # tr is insanely non-portable wrt char classes, so we need to
71 # spell out the alphabet. sed y/// would work too.
73 ${TR:-tr} abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
77 ${TR:-tr} ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
82 AIX) # everyone loves to be different...
84 OSREL="$OSMAJOR.`uname -r`"
87 SHARE_ARCH=$OS/$OSMAJOR.X
90 CHOWN=`Which chown /usr/etc:/usr/bin`
93 # Great! Solaris keeps moving arch(1)
94 # should just bite the bullet and use uname -p
95 arch=`Which arch /usr/bin:/usr/ucb`
102 # uname -m just says sun which could be anything
105 MACHINE=$MACHINE_ARCH
115 # can you believe that ln on Solaris defaults to
116 # overwriting an existing file!!!!! We want one that works!
117 test -x /usr/xpg4/bin/ln && LN=${LN:-/usr/xpg4/bin/ln}
118 # wonderful, 5.8's tr again require's []'s
119 # but /usr/xpg4/bin/tr causes problems if LC_COLLATE is set!
120 # use toUpper/toLower instead.
123 case "$OS/$MACHINE_ARCH" in
124 *sun386) SHARE_ARCH=$MACHINE_ARCH;;
135 # NetBSD at least has good backward compatability
136 # so NetBSD/i386 is good enough
138 NetBSD) SHARE_ARCH=$OS/${MACHINE_ARCH:-$MACHINE};;
140 arch=`Which arch /usr/bin:/usr/ucb:$PATH`
141 MACHINE_ARCH=`$arch -s`
148 TMP_DIRS="/tmp /usr/tmp"
151 # don't rely on /bin/sh, its broken
152 _shell=/bin/ksh; ENV=
153 # also, no one would be interested in OSMAJOR=A
155 ?.09*) OSMAJOR=9; PS_AXC=-e;;
156 ?.10*) OSMAJOR=10; PS_AXC=-e;;
168 OSMAJOR=`IFS=.; set $OSREL; echo $1`
169 MACHINE_ARCH=`uname -m`
172 # Not really any such thing as Linux, but
173 # this covers red-hat and hopefully others.
175 i?86) MACHINE_ARCH=i386;; # we don't care about i686 vs i586
179 [ -x /usr/bin/md5sum ] && { MD5=/usr/bin/md5sum; export MD5; }
183 x86pc) MACHINE_ARCH=i386;;
188 BeBox) MACHINE_ARCH=powerpc;;
189 BeMac) MACHINE_ARCH=powerpc;;
190 BePC) MACHINE_ARCH=i386;;
195 HOSTNAME=${HOSTNAME:-`( hostname ) 2>/dev/null`}
196 HOSTNAME=${HOSTNAME:-`( uname -n ) 2>/dev/null`}
198 *.*) HOST=`IFS=.; set -- $HOSTNAME; echo $1`;;
202 TMP_DIRS=${TMP_DIRS:-"/tmp /var/tmp"}
203 MACHINE_ARCH=${MACHINE_ARCH:-$MACHINE}
204 # we mount server:/share/arch/$SHARE_ARCH as /usr/local
205 SHARE_ARCH=${SHARE_ARCH:-$OS/$OSMAJOR.X/$MACHINE_ARCH}
209 # Some people like have /share/$HOST_TARGET/bin etc.
210 HOST_TARGET=`echo ${OS}${OSMAJOR}-${MACHINE_ARCH} | toLower`
213 case `echo -n .` in -n*) N=; C="\c";; *) N=-n; C=;; esac
216 export OS MACHINE MACHINE_ARCH OSREL OSMAJOR LOCAL_FS TMP_DIRS MAILER N C K PS_AXC
217 export LN SHARE_ARCH TR