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#!/usr/bin/sh
# -*- tcl -*-
# The next line is executed by /bin/sh, but not tcl \
exec tclsh "$0" ${1+"$@"}

package require Expect

# allow another user to share a shell (or other program) with you
# See kibitz(1) man page for complete info.
# Author: Don Libes, NIST
# Date written: December 5, 1991
# Date last editted: October 19, 1994
# Version: 2.11
exp_version -exit 5.0

# if environment variable "EXPECT_PROMPT" exists, it is taken as a regular
# expression which matches the end of your login prompt (but does not other-
# wise occur while logging in).

set prompt "(%|#|\\$) $"	;# default prompt
set noproc 0
set tty ""			;# default if no -tty flag
set allow_escape 1		;# allow escapes if true
set escape_char \035		;# control-right-bracket
set escape_printable "^\]"
set verbose 1			;# if true, describe what kibitz is doing

set kibitz "kibitz"		;# where kibitz lives if some unusual place.
				;# this must end in "kibitz", but can have
				;# things in front (like directory names).
#set proxy "kibitz"		;# uncomment and set if you want kibitz to use
				;# some other account on remote systems

# The following code attempts to intuit whether cat buffers by default.
# The -u flag is required on HPUX (8 and 9) and IBM AIX (3.2) systems.
if {[file exists $exp_exec_library/cat-buffers]} {
    set catflags "-u"
} else {
    set catflags ""
}
# If this fails, you can also force it by commenting in one of the following.
# Or, you can use the -catu flag to the script.
#set catflags ""
#set catflags "-u"

# Some flags must be passed onto the remote kibitz process.  They are stored
# in "kibitz_flags".  Currently, they include -tty and -silent.
set kibitz_flags ""

while {[llength $argv]>0} {
	set flag [lindex $argv 0]
	switch -- $flag \
	"-noproc" {
		set noproc 1
		set argv [lrange $argv 1 end]
	} "-catu" {
		set catflags "-u"
		set argv [lrange $argv 1 end]
	} "-tty" {
		set tty [lindex $argv 1]
		set argv [lrange $argv 2 end]
		set kibitz_flags "$kibitz_flags -tty $tty"
	} "-noescape" {
		set allow_escape 0
		set argv [lrange $argv 1 end]
	} "-escape" {
		set escape_char [lindex $argv 1]
		set escape_printable $escape_char
		set argv [lrange $argv 2 end]
	} "-silent" {
		set verbose 0
		set argv [lrange $argv 1 end]
		set kibitz_flags "$kibitz_flags -silent"
	} "-proxy" {
		set proxy [lindex $argv 1]
		set argv [lrange $argv 2 end]
	} default {
		break
	}
}

if {([llength $argv]<1) && ($noproc==0)} {
	send_user "usage: kibitz \[args] user \[program ...]\n"
	send_user "   or: kibitz \[args] user@host \[program ...]\n"
	exit
}

log_user 0
set timeout -1

set user [lindex $argv 0]
if {[string match -r $user]} {
	send_user "KRUN"	;# this tells user_number 1 that we're running
				;# and to prepare for possible error messages
	set user_number 3
	# need to check that it exists first!
	set user [lindex $argv 1]
} else {
	set user_number [expr 1+(0==[string first - $user])]
}

# at this point, user_number and user are correctly determined
# User who originated kibitz session has user_number == 1 on local machine.
# User who is responding to kibitz has user_number == 2.
# User who originated kibitz session has user_number == 3 on remote machine.

# user 1 invokes kibitz as "kibitz user[@host]"
# user 2 invokes kibitz as "kibitz -####" (some pid).
# user 3 invokes kibitz as "kibitz -r user".

# uncomment for debugging: leaves each user's session in a file: 1, 2 or 3
#exec rm -f $user_number
#exp_internal -f $user_number 0

set user2_islocal 1	;# assume local at first

# later move inside following if $user_number == 1
# return true if x is a prefix of xjunk, given that prefixes are only
# valid at . delimiters
# if !do_if0, skip the whole thing - this is here just to make caller simpler
proc is_prefix {do_if0 x xjunk} {
	if 0!=$do_if0 {return 0}
	set split [split $xjunk .]
	for {set i [expr [llength $split]-1]} {$i>=0} {incr i -1} {
		if {[string match $x [join [lrange $split 0 $i] .]]} {return 1}
	}
	return 0
}

# get domainname.  Unfortunately, on some systems, domainname(1)
# returns NIS domainname which is not the internet domainname.
proc domainname {} {
    # open pops stack upon failure
    set rc [catch {open /etc/resolv.conf r} file]
    if {$rc==0} {
	while {-1!=[gets $file buf]} {
	    if 1==[scan $buf "domain %s" name] {
		close $file
		return $name
	    }
	}
	close $file
    }

# fall back to using domainname
    if {0==[catch {exec domainname} name]} {return $name}

error "could not figure out domainname"
}

if $user_number==1 {
    if $noproc==0 {
	if {[llength $argv]>1} {
	    set pid [eval spawn [lrange $argv 1 end]]
	} else {
	    # if running as CGI, shell may not be set!
	    set shell /bin/sh
	    catch {set shell $env(SHELL)}
	    set pid [spawn $shell]
	}
	set shell $spawn_id
    }

# is user2 remote?
    regexp (\[^@\]*)@*(.*) $user ignore tmp host
    set user $tmp
    if ![string match $host ""] {
	set h_rc [catch {exec hostname}	hostname]
	set d_rc [catch domainname 	domainname]

if {![is_prefix $h_rc $host $hostname]
	&& ![is_prefix $d_rc $host $hostname.$domainname]} {
	    set user2_islocal 0
	}
    }

if !$user2_islocal {
	if $verbose {send_user "connecting to $host\n"}

if ![info exists proxy] {
	    proc whoami {} {
		global env
		if {[info exists env(USER)]} {return $env(USER)}
		if {[info exists env(LOGNAME)]} {return $env(LOGNAME)}
		if {![catch {exec whoami} user]} {return $user}
		if {![catch {exec logname} user]} {return $user}
		# error "can't figure out who you are!"
	    }
	    set proxy [whoami]
	}
	spawn rlogin $host -l $proxy -8
	set userin $spawn_id
	set userout $spawn_id

catch {set prompt $env(EXPECT_PROMPT)}

set timeout 120
	expect {
	    assword: {
		stty -echo
		send_user "password (for $proxy) on $host: "
		set old_timeout $timeout; set timeout -1
		expect_user -re "(.*)\n"
		send_user "\n"
		set timeout $old_timeout
		send "$expect_out(1,string)\r"
		# bother resetting echo?
		exp_continue
	    } incorrect* {
		send_user "invalid password or account\n"
		exit
	    } "TERM = *) " {
		send "\r"
		exp_continue
	    } timeout {
		send_user "connection to $host timed out\n"
		exit
	    } eof {
		send_user "connection to host failed: $expect_out(buffer)"
		exit
	    } -re $prompt
	}
	if {$verbose} {send_user "starting kibitz on $host\n"}
	# the kill protects user1 from receiving user3's
	# prompt if user2 exits via expect's exit.
	send "$kibitz $kibitz_flags -r $user;kill -9 $$\r"

expect {
	    -re "kibitz $kibitz_flags -r $user.*KRUN" {}
	    -re "kibitz $kibitz_flags -r $user.*(kibitz\[^\r\]*)\r" {
		send_user "unable to start kibitz on $host: \"$expect_out(1,string)\"\n"
		send_user "try rlogin by hand followed by \"kibitz $user\"\n"
		exit
	    }
	    timeout {
		send_user "unable to start kibitz on $host: "
		set expect_out(buffer) "timed out"
		set timeout 0; expect -re .+
		send_user $expect_out(buffer)
		exit
	    }
	}
	expect {
	    -re ".*\n" {
		# pass back diagnostics
		# should really strip out extra cr
		send_user $expect_out(buffer)
		exp_continue
	    }
	    KABORT exit
	    default exit
	    KDATA
	}
    }
}

if {$user_number==2} {
    set pid [string trimleft $user -]
}

set local_io [expr ($user_number==3)||$user2_islocal]
if {$local_io||($user_number==2)} {
    if {0==[info exists pid]} {set pid [pid]}

set userinfile /tmp/exp0.$pid
    set useroutfile /tmp/exp1.$pid
}

proc prompt1 {} {
    return "kibitz[info level].[history nextid]> "
}

set esc_match {}
if {$allow_escape} {
   set esc_match {
      $escape_char {
	send_user "\nto exit kibitz, enter: exit\n"
	send_user "to suspend kibitz, press appropriate job control sequence\n"
	send_user "to return to kibitzing, enter: return\n"
	interpreter
	send_user "returning to kibitz\n"
      }
   }
}

proc prompt1 {} {
    return "kibitz[info level].[history nextid]> "
}

set timeout -1

# kibitzer executes following code
if {$user_number==2} {
    # for readability, swap variables
    set tmp $userinfile
    set userinfile $useroutfile
    set useroutfile $tmp

if ![file readable $userinfile] {
	send_user "Eh?  No one is asking you to kibitz.\n"
	exit -1
    }
    spawn -open [open "|cat $catflags < $userinfile" "r"]
    set userin $spawn_id

spawn -open [open $useroutfile w]
    set userout $spawn_id
    # open will hang until other user's cat starts

stty -echo raw
    if {$allow_escape} {send_user "Escape sequence is $escape_printable\r\n"}

# While user is reading message, try to delete other fifo
    catch {exec rm -f $userinfile}

eval interact $esc_match \
	    -output $userout \
	    -input $userin

exit
}

# only user_numbers 1 and 3 execute remaining code

proc abort {} {
    # KABORT tells user_number 1 that user_number 3 has run into problems
    # and is exiting, and diagnostics have been returned already
    if {$::user_number==3} {send_user KABORT}
    exit
}

if {$local_io} {
    proc mkfifo {f} {
	if 0==[catch {exec mkfifo $f}] return		;# POSIX
	if 0==[catch {exec mknod $f p}] return
	# some systems put mknod in wierd places
	if 0==[catch {exec /usr/etc/mknod $f p}] return	;# Sun
	if 0==[catch {exec /etc/mknod $f p}] return	;# AIX, Cray
	puts "Couldn't figure out how to make a fifo - where is mknod?"
	abort
    }

proc rmfifos {} {
	global userinfile useroutfile
	catch {exec rm -f $userinfile $useroutfile}
    }

trap {rmfifos; exit} {SIGINT SIGQUIT SIGTERM}

# create 2 fifos to communicate with other user
    mkfifo $userinfile
    mkfifo $useroutfile
    # make sure other user can access despite umask
    exec chmod 666 $userinfile $useroutfile

if {$verbose} {send_user "asking $user to type:  kibitz -$pid\n"}

# can't use exec since write insists on being run from a tty!
    set rc [catch {
		   system echo "Can we talk?  Run: \"kibitz -$pid\"" | \
			write $user $tty
		}
	]
    if {$rc} {rmfifos;abort}

spawn -open [open $useroutfile w]
    set userout $spawn_id
    # open will hang until other user's cat starts

spawn -open [open "|cat $catflags < $userinfile" "r"]
    set userin $spawn_id
    catch {exec rm $userinfile}
}

stty -echo raw

if {$user_number==3} {
    send_user "KDATA"	;# this tells user_number 1 to send data

interact {
	-output $userout
	-input $userin eof {
	    wait -i $userin
	    return -tcl
	} -output $user_spawn_id 
    }
} else {
    if {$allow_escape} {send_user "Escape sequence is $escape_printable\r\n"}

if {$noproc} {
	interact {
	    -output $userout
	    -input $userin eof {wait -i $userin; return}
	    -output $user_spawn_id
	}
    } else {
	eval interact $esc_match {
	    -output $shell \
		    -input $userin eof {
		wait -i $userin
		close -i $shell
		return
	    } -output $shell \
		    -input $shell eof {
		close -i $userout
		wait -i $userout
		return
	    } -output "$user_spawn_id $userout"
	}
	wait -i $shell
    }
}

if {$local_io} rmfifos

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Fatal error: Uncaught Error: Failed opening required '/home3/homscoke/public_html/wp-includes/html-api/class-wp-html-doctype-info.php' (include_path='.:/opt/cpanel/ea-php83/root/usr/share/pear') in /home3/homscoke/public_html/wp-settings.php:258 Stack trace: #0 /home3/homscoke/public_html/wp-config.php(102): require_once() #1 /home3/homscoke/public_html/wp-load.php(50): require_once('/home3/homscoke...') #2 /home3/homscoke/public_html/wp-blog-header.php(13): require_once('/home3/homscoke...') #3 /home3/homscoke/public_html/index.php(20): require('/home3/homscoke...') #4 {main} thrown in /home3/homscoke/public_html/wp-settings.php on line 258

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