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[unix-history] / usr / src / usr.bin / compress / usermem.sh

diff --git a/usr/src/usr.bin/compress/usermem.sh b/usr/src/usr.bin/compress/usermem.sh
index 59c68c7..0827c64 100644 (file)
--- a/usr/src/usr.bin/compress/usermem.sh
+++ b/usr/src/usr.bin/compress/usermem.sh
@@ -1,6 +1,25 @@
 #!/bin/sh -
 #
 #!/bin/sh -
 #

-#      @(#)usermem.sh  5.1 (Berkeley) %G%
+# Copyright (c) 1985 The Regents of the University of California.
+# All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# James A. Woods, derived from original work by Spencer Thomas
+# and Joseph Orost.
+#
+# Redistribution and use in source and binary forms are permitted
+# provided that the above copyright notice and this paragraph are
+# duplicated in all such forms and that any documentation,
+# advertising materials, and other materials related to such
+# distribution and use acknowledge that the software was developed
+# by the University of California, Berkeley.  The name of the
+# University may not be used to endorse or promote products derived
+# from this software without specific prior written permission.
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+#
+#      @(#)usermem.sh  5.5 (Berkeley) %G%

 #
 : This shell script snoops around to find the maximum amount of available
 : user memory.  These variables need to be set only if there is no
 #
 : This shell script snoops around to find the maximum amount of available
 : user memory.  These variables need to be set only if there is no


@@ -16,8 +35,25 @@ UNIX=
 CLICKSIZE=512
 eval $*
 
 CLICKSIZE=512
 eval $*
 

+if test -n "$UNIX"
+then
+    : User must have specified it already.
+elif test -r /vmunix
+then
+    UNIX=/vmunix
+    CLICKSIZE=512      # Probably VAX
+elif test -r /edition7
+then
+    UNIX=/edition7
+    CLICKSIZE=2048     # Perkin-Elmer: change to 4096 on a 3205
+elif test -r /unix
+then
+    UNIX=/unix         # Could be anything
+fi
+

 SIZE=0
 SIZE=0

-if test -r /usr/adm/messages   # probably the most transportable
+# messages: probably the most transportable
+if test -r /usr/adm/messages -a -s /usr/adm/messages

 then
     SIZE=`grep avail /usr/adm/messages | sed -n '$s/.*[        ]//p'`
 fi
 then
     SIZE=`grep avail /usr/adm/messages | sed -n '$s/.*[        ]//p'`
 fi


@@ -26,37 +62,33 @@ if test 0$SIZE -le 0                # no SIZE in /usr/adm/messages
 then
     if test -r $KMEM           # Readable KMEM
     then
 then
     if test -r $KMEM           # Readable KMEM
     then

-       if test -n "$UNIX"
-       then
-           : User must have specified it already.
-       elif test -r /vmunix
-       then
-           UNIX=/vmunix
-           CLICKSIZE=512       # Probably VAX
-       elif test -r /edition7
-       then
-           UNIX=/edition7
-           CLICKSIZE=2048      # Perkin-Elmer: change to 4096 on a 3205
-       elif test -r /unix
-       then
-           UNIX=/unix          # Could be anything
-       fi

        if test -n "$UNIX"
        then
            SIZE=`echo maxmem/D | adb $UNIX $KMEM | sed -n '$s/.*[      ]//p'`
            if test 0$SIZE -le 0
            then
        if test -n "$UNIX"
        then
            SIZE=`echo maxmem/D | adb $UNIX $KMEM | sed -n '$s/.*[      ]//p'`
            if test 0$SIZE -le 0
            then

-               SIZE=`echo physmem/D | adb $UNIX $KMEM | sed -n '$s/.*[ 
-       ]//p'`
+               SIZE=`echo physmem/D | adb $UNIX $KMEM | sed -n '$s/.*[         ]//p'`

            fi
            SIZE=`expr 0$SIZE '*' $CLICKSIZE`
        fi
     fi
 fi
 
            fi
            SIZE=`expr 0$SIZE '*' $CLICKSIZE`
        fi
     fi
 fi
 

+case $UNIX in
+    /vmunix)           # Assume 4.2bsd: check for resource limits
+       MAXSIZE=`csh -c limit | awk 'BEGIN      { MAXSIZE = 1000000 }
+/datasize|memoryuse/ && NF == 3        { if ($2 < MAXSIZE) MAXSIZE = $2 }
+END    { print MAXSIZE * 1000 }'`
+       if test $MAXSIZE -lt $SIZE
+       then
+           SIZE=$MAXSIZE
+       fi
+       ;;
+esac
+

 if test 0$SIZE -le 0
 then
 if test 0$SIZE -le 0
 then

-    echo 0
+    echo 0;exit 1

 else
     echo $SIZE
 fi
 else
     echo $SIZE
 fi