# The : is required for some old versions of csh.
# On Ultrix, /bin/sh is too buggy, change the first line to: #!/bin/sh5
-x=`basename "$0"`
+
+# Copyright (C) 1998, 2002 Free Software Foundation
+# Copyright (C) 1993 Jean-loup Gailly
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+
+PATH="BINDIR:$PATH"
+x=`basename $0`
if test $# = 0; then
echo compress executables. original file foo is renamed to foo~
echo usage: ${x} [-d] files...
exit 1
fi
+set -C
+tmp=gz$$
+trap "rm -f $tmp; exit 1" HUP INT QUIT TRAP USR1 PIPE TERM
+: > $tmp || exit 1
+
decomp=0
res=0
test "$x" = "ungzexe" && decomp=1
shift
fi
-cpmod=
-if type ${CPMOD:-cpmod} 2>/dev/null; then
- cpmod=${CPMOD:-cpmod}
+echo hi > zfoo1$$ || exit 1
+echo hi > zfoo2$$ || exit 1
+if test -z "`(${CPMOD-cpmod} zfoo1$$ zfoo2$$) 2>&1`"; then
+ cpmod=${CPMOD-cpmod}
fi
+rm -f zfoo[12]$$
tail=""
IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:"
echo cannot find tail
exit 1
fi
+case `echo foo | $tail -n +1 2>/dev/null` in
+foo) tail="$tail -n";;
+esac
for i do
if test ! -f "$i" ; then
continue
fi
case "`basename $i`" in
- bash | chmod | gzip | ln | mktemp | rm | sed | sh | tail)
+ gzip | tail | sed | chmod | ln | sleep | rm)
echo "${x}: $i would depend on itself"; continue ;;
esac
-
- tmp=`/bin/mktemp -t gzexe.XXXXXXXXXX` || exit 1
- trap "rm -f $tmp; exit 1" HUP INT QUIT PIPE TERM
- trap "rm -f $tmp; exit 0" EXIT
-
if test -z "$cpmod"; then
cp -p "$i" $tmp 2>/dev/null || cp "$i" $tmp
if test -w $tmp 2>/dev/null; then
writable=0
chmod u+w $tmp 2>/dev/null
fi
+ : >| $tmp # truncate the file, ignoring set -C
fi
if test $decomp -eq 0; then
- sed 1q $0 > $tmp
+ sed 1q $0 >> $tmp
sed "s|^if tail|if $tail|" >> $tmp <<'EOF'
skip=23
set -C
umask=`umask`
umask 77
-tmpfile=$(tempfile -p gztmp -d /tmp)
-if tail +$skip $0 | /bin/gzip -cd >> $tmpfile; then
+tmpfile=`tempfile -p gztmp -d /tmp` || exit 1
+if tail +$skip "$0" | /bin/gzip -cd >> $tmpfile; then
umask $umask
/bin/chmod 700 $tmpfile
prog="`echo $0 | /bin/sed 's|^.*/||'`"
else
# decompression
- skip=22
+ skip=23
if sed -e 1d -e 2q "$i" | grep "^skip=[0-9]*$" >/dev/null; then
eval `sed -e 1d -e 2q "$i"`
fi
:
else
echo ${x}: $i probably not in gzexe format, file unchanged.
- rm -f $tmp
res=1
continue
fi