157 lines
4.3 KiB
Bash
157 lines
4.3 KiB
Bash
#!/bin/sh
|
|
# $XTermId: sinstall.sh,v 1.15 2006/01/04 02:10:27 tom Exp $
|
|
# $XFree86: xc/programs/xterm/sinstall.sh,v 1.5 2006/01/04 02:10:27 dickey Exp $
|
|
#
|
|
# Install program setuid if the installer is running as root, and if xterm is
|
|
# already installed on the system with setuid privilege. This is a safeguard
|
|
# for ordinary users installing xterm for themselves on systems where the
|
|
# setuid is not needed to access a PTY, but only for things like utmp.
|
|
#
|
|
# Options:
|
|
# u+s, g+s as in chmod
|
|
# -u, -g and -m as in install. If any options are given, $3 is ignored.
|
|
#
|
|
# Parameters:
|
|
# $1 = program to invoke as "install"
|
|
# $2 = program to install
|
|
# $3 = previously-installed program, for reference
|
|
# $4 = final installed-path, if different from reference
|
|
|
|
trace=:
|
|
trace=echo
|
|
|
|
OPTS_SUID=
|
|
OPTS_SGID=
|
|
OPTS_MODE=
|
|
OPTS_USR=
|
|
OPTS_GRP=
|
|
|
|
while test $# != 0
|
|
do
|
|
case $1 in
|
|
-*)
|
|
OPT="$1"
|
|
shift
|
|
if test $# != 0
|
|
then
|
|
case $OPT in
|
|
-u) OPTS_USR="$1"; shift;;
|
|
-g) OPTS_GRP="$1"; shift;;
|
|
-m) OPTS_MODE="$1"; shift;;
|
|
esac
|
|
else
|
|
break
|
|
fi
|
|
;;
|
|
u+s) shift; OPTS_SUID=4000;;
|
|
g+s) shift; OPTS_SGID=2000;;
|
|
*) break
|
|
;;
|
|
esac
|
|
done
|
|
|
|
SINSTALL="$1"
|
|
SRC_PROG="$2"
|
|
REF_PROG="$3"
|
|
DST_PROG="$4"
|
|
|
|
test -z "$SINSTALL" && SINSTALL=install
|
|
test -z "$SRC_PROG" && SRC_PROG=xterm
|
|
test -z "$REF_PROG" && REF_PROG=/usr/bin/X11/xterm
|
|
test -z "$DST_PROG" && DST_PROG="$REF_PROG"
|
|
|
|
test -n "$OPTS_SUID" && test -n "$OPTS_USR" && REF_PROG=
|
|
test -n "$OPTS_SGID" && test -n "$OPTS_GRP" && REF_PROG=
|
|
|
|
echo checking for presumed installation-mode
|
|
|
|
PROG_SUID=
|
|
PROG_SGID=
|
|
PROG_MODE=
|
|
PROG_USR=
|
|
PROG_GRP=
|
|
|
|
if test -z "$REF_PROG" ; then
|
|
$trace "... reference program not used"
|
|
elif test -f "$REF_PROG" ; then
|
|
cf_option="-l -L"
|
|
MYTEMP=${TMPDIR-/tmp}/sinstall$$
|
|
|
|
# Expect listing to have fields like this:
|
|
#-r--r--r-- 1 user group 34293 Jul 18 16:29 pathname
|
|
ls $cf_option $REF_PROG >$MYTEMP
|
|
read cf_mode cf_links cf_usr cf_grp cf_size cf_date1 cf_date2 cf_date3 cf_rest <$MYTEMP
|
|
$trace "... if \"$cf_rest\" is null, try the ls -g option"
|
|
if test -z "$cf_rest" ; then
|
|
cf_option="$cf_option -g"
|
|
ls $cf_option $REF_PROG >$MYTEMP
|
|
read cf_mode cf_links cf_usr cf_grp cf_size cf_date1 cf_date2 cf_date3 cf_rest <$MYTEMP
|
|
fi
|
|
rm -f $MYTEMP
|
|
|
|
# If we have a pathname, and the date fields look right, assume we've
|
|
# captured the group as well.
|
|
$trace "... if \"$cf_rest\" is null, we do not look for group"
|
|
if test -n "$cf_rest" ; then
|
|
cf_test=`echo "${cf_date2}${cf_date3}" | sed -e 's/[0-9:]//g'`
|
|
$trace "... if we have date in proper columns ($cf_date1 $cf_date2 $cf_date3), \"$cf_test\" is null"
|
|
if test -z "$cf_test" ; then
|
|
PROG_USR=$cf_usr;
|
|
PROG_GRP=$cf_grp;
|
|
fi
|
|
fi
|
|
$trace "... derived user \"$PROG_USR\", group \"$PROG_GRP\" of previously-installed $SRC_PROG"
|
|
|
|
$trace "... see if mode \"$cf_mode\" has s-bit set"
|
|
case ".$cf_mode" in #(vi
|
|
.???s??s*) #(vi
|
|
PROG_SUID=4000
|
|
PROG_SGID=2000
|
|
;;
|
|
.???s*) #(vi
|
|
PROG_SUID=4000
|
|
PROG_GRP=
|
|
;;
|
|
.??????s*)
|
|
PROG_SGID=2000
|
|
PROG_USR=
|
|
;;
|
|
esac
|
|
PROG_MODE=`echo ".$cf_mode" | sed -e 's/^..//' -e 's/rw./7/g' -e 's/r-./5/g' -e 's/---/0/g' -e 's/--[sxt]/1/g' -e 's/+//g'`
|
|
fi
|
|
|
|
# passed-in options override the reference
|
|
test -n "$OPTS_SUID" && PROG_SUID="$OPTS_SUID"
|
|
test -n "$OPTS_SGID" && PROG_SGID="$OPTS_SGID"
|
|
test -n "$OPTS_MODE" && PROG_MODE="$OPTS_MODE"
|
|
test -n "$OPTS_USR" && PROG_USR="$OPTS_USR"
|
|
test -n "$OPTS_GRP" && PROG_GRP="$OPTS_GRP"
|
|
|
|
# we always need a mode
|
|
test -z "$PROG_MODE" && PROG_MODE=755
|
|
|
|
if test -n "${PROG_USR}${PROG_GRP}" ; then
|
|
cf_uid=`id | sed -e 's/^[^=]*=//' -e 's/(.*$//'`
|
|
cf_usr=`id | sed -e 's/^[^(]*(//' -e 's/).*$//'`
|
|
cf_grp=`id | sed -e 's/^.* gid=[^(]*(//' -e 's/).*$//'`
|
|
$trace "... installing $SRC_PROG as user \"$cf_usr\", group \"$cf_grp\""
|
|
if test "$cf_uid" != 0 ; then
|
|
PROG_SUID=
|
|
PROG_SGID=
|
|
PROG_USR=""
|
|
PROG_GRP=""
|
|
fi
|
|
test "$PROG_USR" = "$cf_usr" && PROG_USR=""
|
|
test "$PROG_GRP" = "$cf_grp" && PROG_GRP=""
|
|
fi
|
|
|
|
test -n "${PROG_SUID}${PROG_SGID}" && PROG_MODE=`expr $PROG_MODE % 1000`
|
|
test -n "$PROG_SUID" && PROG_MODE=`expr $PROG_SUID + $PROG_MODE`
|
|
test -n "$PROG_SGID" && PROG_MODE=`expr $PROG_SGID + $PROG_MODE`
|
|
|
|
test -n "$PROG_USR" && PROG_USR="-o $PROG_USR"
|
|
test -n "$PROG_GRP" && PROG_GRP="-g $PROG_GRP"
|
|
|
|
echo "$SINSTALL -m $PROG_MODE $PROG_USR $PROG_GRP $SRC_PROG $DST_PROG"
|
|
eval "$SINSTALL -m $PROG_MODE $PROG_USR $PROG_GRP $SRC_PROG $DST_PROG"
|