diff options
Diffstat (limited to 'xc/programs/xterm/sinstall.sh')
-rw-r--r-- | xc/programs/xterm/sinstall.sh | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/xc/programs/xterm/sinstall.sh b/xc/programs/xterm/sinstall.sh new file mode 100644 index 000000000..c267f523d --- /dev/null +++ b/xc/programs/xterm/sinstall.sh @@ -0,0 +1,94 @@ +#!/bin/sh +# $XFree86: xc/programs/xterm/sinstall.sh,v 1.2 1999/11/19 13:55:23 hohndel 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. +# +# 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 + +SINSTALL="$1" +NEW_PROG="$2" +REF_PROG="$3" +TST_PROG="$4" + +test -z "$SINSTALL" && SINSTALL=install +test -z "$NEW_PROG" && NEW_PROG=xterm +test -z "$REF_PROG" && REF_PROG=/usr/bin/X11/xterm +test -z "$TST_PROG" && REF_PROG="$REF_PROG" + +PROG_MODE=755 +PROG_USR= +PROG_GRP= + +echo checking for presumed installation-mode +if 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 $NEW_PROG" + + $trace "... see if mode \"$cf_mode\" has s-bit set" + case ".$cf_mode" in #(vi + .???s*) #(vi + PROG_MODE=4711 + PROG_GRP= + ;; + .??????s*) + PROG_MODE=2711 + PROG_USR= + ;; + esac +fi + +if test -n "${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 $NEW_PROG as user \"$cf_usr\", group \"$cf_grp\"" + if test "$cf_uid" != 0 ; then + PROG_MODE=755 + PROG_USR="" + PROG_GRP="" + fi + test "$PROG_USR" = "$cf_usr" && PROG_USR="" + test "$PROG_GRP" = "$cf_grp" && PROG_GRP="" +fi + +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 $NEW_PROG $TST_PROG" +eval "$SINSTALL -m $PROG_MODE $PROG_USR $PROG_GRP $NEW_PROG $TST_PROG" |