This file is indexed.

/usr/games/mailgo is in mgt 2.31-7.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh
#
#  mailgo 2.0     E-mail go game management program by Adrian Mariano
#     3/24/93     I place it on the public domain.  Please send improvements
#                 to me at adrian@bsdserver.ucsf.edu
# 
#  Syntax: mailgo [-r] filename
#          mailgo --  
#          mailgo -n [filename]
#          mailgo -c 
#          mailgo -e filename
# 
#  Filename should contain a mailgo go game
#  
#  -- reads game file from stdin
#  -r resends the file to the opponent
#  -n start a new game, using data in filename to get address
#  -c removes temporary files left when abnormally terminated: MailGo*
#  -e edits the mailgo header and/or the game record
#
#  Invokes the game processor in the environment variable MAILGO, or attempts
#  to run mgt from the inherited path if MAILGO is not set.
#
#  System V Unix users should change the assignment to the MAILER variable
#  from 'mail' to 'mailx' or 'elm' or some other compatible mailer.
#

MAILER=mail

set -e

if [ $# -eq 0 ]
then
  echo ' '
  echo 'Syntax: mailgo [-r] filename'
  echo '        mailgo --'
  echo '        mailgo -n [filename]'
  echo '        mailgo -c '
  echo '        mailgo -e filename'
  echo ' '
  echo 'Mailgo is a program to manage email go games.'
  echo 'Filename should contain a mailgo go game'
  echo '  '
  echo '  -- reads game file from stdin'
  echo '  -r resends the file to the opponent'
  echo '  -n start a new game, using data in filename to get address'
  echo '  -c removes temporary files left when abnormally terminated: MailGo*'
  echo '  -e edits the mailgo header and/or the game record'
  echo ' '
  exit
fi
case $1 in
  -c) if [ $# -ne 1 ]
       then
         echo Wrong number of parameters
         exit
       else
         rm -f MailGo* MailFile* MailOut*
         exit
       fi;;
  -r) if [ $# != 2 ]
       then
         echo Wrong number of parameters
         exit
       fi
       if grep "\---GoGaMeEnD---" $2 >/dev/null 2>&1
       then
         name=`sed -n '2,5s/TO: //p' $2`
         hisfile=`sed -n '2,5s/TOFILE: //p' $2`
         echo Remailing response to $name, $hisfile
         $MAILER -s "Remailed Go Game: $hisfile" $name < $2
         exit
       else
         echo Invalid input file $2
         exit
       fi;;
  -e) if [ $# -ne 2 ]
       then
         echo Wrong number of parameters
         exit
       fi
       if [ ! -s $2 ]
       then
         echo File $2 not found.
         exit
       fi
sed -n '/---GoGaMeStArT---/,/---GoGaMeEnD---/{s/---GoGaMe.*---//
p
}' $2 > MailGo$$
       if [ ! -s MailGo$$ ]
       then
         echo Invalid input file $2
         exit
       fi
       opponent=`sed -n '2,5s/TO: //p' MailGo$$`
       echo To address: $opponent
       echo -n "new address, <ret> for no change: "
       read res
       if [ $res ]
       then
         opponent=$res
       fi
       hisfile=`sed -n '2,5s/TOFILE: //p' MailGo$$`
       echo To game file: $hisfile
       echo -n "new file name, <ret> for no change: "
       read res
       if [ $res ]
       then
         hisfile=$res
       fi
       me=`sed -n '2,5s/FROM: //p' MailGo$$`
       echo From address: $me
       echo -n "new address, <ret> for no change: "
       read res
       if [ $res ]
       then
         me=$res
       fi
       myfile=`sed -n '2,5s/FROMFILE: //p' MailGo$$`
       echo From game file: $myfile
       echo -n "new file name, <ret> for no change: "
       read res
       if [ $res ]
       then
         myfile=$res
       fi
       if sed -n 6,7p MailGo$$ | grep FORMAT > /dev/null 2>&1
       then
         format=`sed -n '6,7s/FORMAT: //p' MailGo$$`
         if [ ! \( $format = 'L' -o $format = 'E' \) ] 
         then
           format='S'
         fi
       else
         format='L'
       fi
       echo Old game record format: $format
       echo -n "New game record format (Long/Short/Extrashort): "
       read res
       case $res in
         L | l) format='L' ;;
         E | e) format='E' ;;
         S | s) format='S' ;;
         *)  ;;
       esac
       case $format in
         L) sflag='';;
         *) sflag=-s;;
       esac
       if ${MAILGO-mgt} $sflag -m MailOut$$ MailGo$$
       then
         if [ -s MailOut$$ ]
         then
	   echo >> MailOut$$
           cat <<END_END > MailFile$$
---GoGaMeStArT---
TO: $opponent
TOFILE: $hisfile
FROM: $me
FROMFILE: $myfile
FORMAT: $format
END_END
           if [ $format = 'S' ]
           then
             sed 's/\(;[BC]\[\)/\
\1/g' MailOut$$ >>MailFile$$
           else
             cat MailOut$$ >> MailFile$$
           fi
           echo >> MailFile$$
           echo "---GoGaMeEnD---" >> MailFile$$
         else
           echo -n "---GoGaMeStArT---" > MailFile$$
           sed "s/TO:.*/TO: $opponent/
	        s/TOFILE:.*/TOFILE: $hisfile/
                s/FROM:.*/FROM: $me/
                s/FROMFILE:.*/FROMFILE: $myfile/
    	        s/FORMAT:.*/FORMAT: $format/" MailGo$$ >> MailFile$$
           echo "---GoGaMeEnD---" >> MailFile$$
           echo -n "empty mgt file"
           exit
         fi
       else
           echo -n "---GoGaMeStArT---" > MailFile$$
           sed "s/TO:.*/TO: $opponent/
	        s/TOFILE:.*/TOFILE: $hisfile/
                s/FROM:.*/FROM: $me/
                s/FROMFILE:.*/FROMFILE: $myfile/
    	        s/FORMAT:.*/FORMAT: $format/" MailGo$$ >> MailFile$$
           echo "---GoGaMeEnD---" >> MailFile$$
         echo "No move made, or mgt error"
       fi
       rm -f MailGo$$ MailOut$$
       echo -n "Do you wish to keep updates (y/N)? "
       read res
       case $res in
         Y | y) cat MailFile$$ > $2
            echo  Updates saved to: $2
            rm -f MailFile$$
            exit;;
         *) echo   NOT keeping updates.
            rm -f MailFile$$
            exit;;
       esac
  ;;
  -n) if [ $# -gt 2 ]
       then
         echo Wrong number of parameters
         exit
       fi
       if [ $# -eq 2 ]
       then
         if [ ! -s $2 ]
         then
           echo File $2 not found.
           exit
         fi
         opponent=`sed -n '2,5s/TO: //p' $2`
         echo Opponent address: $opponent
         hisfile=`sed -n '2,5s/TOFILE: //p' $2`
         echo His game file: $hisfile
         me=`sed -n '2,5s/FROM: //p' $2`
         echo Your address: $me
         myfile=`sed -n '2,5s/FROMFILE: //p' $2`
         echo Your game file: $myfile
       else
         echo -n "Opponent address: "
         read opponent
         echo -n "Opponent game filename: "
         read hisfile
         echo -n "Your address: "
         read me
         echo -n "Your game filename: "
         read myfile
       fi
       echo -n "Black player name: "
       read bpname
       echo -n "             rank: "
       read bprank
       echo -n "White player name: "
       read wpname
       echo -n "             rank: "
       read wprank
       echo -n "Board size (return for 19): "
       read bsize
       if [ "$bsize" -lt 7 -o "$bsize" -gt 19 ]
       then
         bsize=19
       fi
       echo -n "Handicap: "
       read handicap
       echo -n "Komi: "
       read komi
       echo -n "Game record format (Long/Short/Extrashort): "
       read format
       case $format in
         L | l) format='L' ;;
         E | e) format='E' ;;
         *)     format='S' ;;
       esac
       started=`date|awk '{print $3, $2, $6}'`
       if grep "W\[\]" $myfile >/dev/null 2>&1  
       then
         echo -n "File $myfile contains game possibly in progress.  Clobber (y/N)? "
         read res
         case $res in
           Y | y) ;;
           *)  echo -n "Your game filename: "
               read myfile;;
         esac
       fi
       cat <<END_END >$myfile
---GoGaMeStArT---
FROM: $me
FROMFILE: $myfile
TO: $opponent
TOFILE: $hisfile
NEWGAME
FORMAT: $format
END_END
       cat <<END_END > MailGo$$
(
;
GaMe[1]
VieW[]
SiZe[$bsize]
Comment[Black: $bpname, $bprank
White: $wpname, $wprank
`if [ "$handicap" ] ; then echo "Handicap: $handicap" ; fi`
`if [ "$komi" ] ; then echo "Komi: $komi" ; fi`
Started: $started]
PB[$bpname]
BR[$bprank]
PW[$wpname]
WR[$wprank]
`if [ "$komi" ] ; then echo KoMi[$komi] ; fi`
DT[$started]
`      case $bsize.$handicap in
         19.2) echo "PL[W]HA[2]AB[dp][pd]" ;;
         19.3) echo "PL[W]HA[3]AB[dp][pd][pp]" ;;
         19.4) echo "PL[W]HA[4]AB[dd][dp][pd][pp]" ;;
         19.5) echo "PL[W]HA[5]AB[dd][dp][jj][pd][pp]" ;;
         19.6) echo "PL[W]HA[6]AB[dd][dj][dp][pd][pj][pp]" ;;
         19.7) echo "PL[W]HA[7]AB[dd][dj][dp][jj][pd][pj][pp]" ;;
         19.8) echo "PL[W]HA[8]AB[dd][dj][dp][jd][jp][pd][pj][pp]" ;;
         19.9) echo "PL[W]HA[9]AB[dd][dj][dp][jd][jj][jp][pd][pj][pp]" ;;
         13.2) echo "PL[W]HA[2]AB[dj][jd]" ;;
         13.3) echo "PL[W]HA[3]AB[dj][jd][jj]" ;;
         13.4) echo "PL[W]HA[4]AB[dd][dj][jd][jj]" ;;
         13.5) echo "PL[W]HA[5]AB[dd][dj][gg][jd][jj]" ;;
         9.2) echo "PL[W]HA[2]AB[cg][gc]" ;;
         9.3) echo "PL[W]HA[3]AB[cg][gc][gg]" ;;
         9.4) echo "PL[W]HA[4]AB[cc][cg][gc][gg]" ;;
       esac`
)
END_END
       case $format in
         L) sflag='';;
         *) sflag=-s;;
       esac
       if ${MAILGO-mgt} $sflag -m MailOut$$ MailGo$$
       then
         if [ -s MailOut$$ ]
         then
           cat MailOut$$ >>$myfile
         else
           cat MailGo$$ >>$myfile
         fi
       else
         echo -n "No move made, or mgt error. Send anyway (y/N)? "
         read res
         case $res in
           Y | y) cat MailGo$$ >>$myfile;;
           *) echo   NOT mailing new game.
              rm -f MailGo$$ MailOut$$
              exit;;
         esac
       fi
       rm -f MailOut$$ MailGo$$
       echo Mailing new game to $opponent, $hisfile
       echo >> $myfile
       echo "---GoGaMeEnD---" >> $myfile
       $MAILER -s "New Go Game: $hisfile" $opponent <$myfile
       exit
       ;;
esac
if [ $# -ne 1 ]
then
  echo Wrong number of parameters
  exit
fi
if [ $1 = -- ]
then
  MAILGOTEMP=`mktemp`
  cat >$MAILGOTEMP
  set $MAILGOTEMP
  exec </dev/tty
elif [ ! -s $1 ]
then
  echo File $1 not found
  exit
fi
sed -n '/---GoGaMeStArT---/,/---GoGaMeEnD---/{s/---GoGaMe.*---//
p
}' $1 > MailGo$$
if [ ! -s MailGo$$ ]
then
  echo Invalid input file $1
  exit
fi
eval `sed -n '/---GoGaMeStArT---/,/(/{
  s/^TOFILE:  */fileout=/p
  s/^FROMFILE:  */hisfile=/p
  s/^FORMAT:  */format=/p
  s/^TO:  */me=/p
  s/^FROM:  */name=/p
  s/^NEWGAME/newgame=1/p
  }' $1`
if [ -z "$format" ] 
then
  format=L
elif [ "$format" != L -a "$format" != E ]
then
  format=S
fi
case $format in
  L) sflag='';;
  *) sflag='-s';;
esac
if ${MAILGO-mgt} $sflag -m MailOut$$ MailGo$$
then
  echo >> MailOut$$
  if [ "$newgame" = 1 -a -s $fileout ]
  then
    echo -n "File $fileout exists.  Clobber (y/N)? "
    read res
    case $res in
      Y | y) rm -f $fileout ;;
      *) echo -n "Output filename: "
         read fileout ;;
    esac
  fi
  cat <<EOF > MailFile$$
---GoGaMeStArT---
TO: $name
TOFILE: $hisfile
FROM: $me
FROMFILE: $fileout
FORMAT: $format
EOF
  case $format in
    S) sed 's/\(;[BC]\[\)/\
\1/g' MailOut$$ >>MailFile$$;;
    *) cat MailOut$$ >>MailFile$$;;
  esac 
  echo "---GoGaMeEnD---" >> MailFile$$
  echo Mailing response to $name, $hisfile
  $MAILER -s "Go Game: $hisfile" $name < MailFile$$ 
  rm -f MailGo$$ MailOut$$ $1
  if grep "\---GoGaMeEnD---" $fileout > /dev/null 2>&1 || [ ! -s $fileout ]
  then
    mv MailFile$$ $fileout
  else
    echo Save file $fileout doesn\'t look like a mailgo file.  
    echo "Overwrite it anyway (y/N)?"
    read res
    case $res in
      y | Y) mv -f MailFile$$ $fileout;;
      *)     echo Game record left in MailFile$$;;
    esac
  fi
else
  echo No move made, or mgt error.  NOT mailing response.
  rm -f MailGo$$ MailOut$$
fi