nixpkgs/pkgs/servers/x11/xquartz/startx

#!/bin/sh

# vim :set ts=4 sw=4 sts=4 et :

#
# This is just a sample implementation of a slightly less primitive
# interface than xinit.  It looks for user .xinitrc and .xserverrc
# files, then system xinitrc and xserverrc files, else lets xinit choose
# its default.  The system xinitrc should probably do things like check
# for .Xresources files and merge them in, start up a window manager,
# and pop a clock and several xterms.
#
# Site administrators are STRONGLY urged to write nicer versions.
#

unset DBUS_SESSION_BUS_ADDRESS
unset SESSION_MANAGER


# Bourne shell does not automatically export modified environment variables
# so export the new PATH just in case the user changes the shell
export PATH=@PATH@:$PATH

export FONTCONFIG_FILE="@FONTCONFIG_FILE@"

userclientrc=$HOME/.xinitrc
sysclientrc=@XINITRC@

userserverrc=$HOME/.xserverrc
sysserverrc=@XINITRC@
defaultclient=@DEFAULT_CLIENT@ # xterm
defaultserver=@DEFAULT_SERVER@
defaultclientargs=""
defaultserverargs=""
defaultdisplay=":0"
clientargs=""
serverargs=""

export X11_PREFS_DOMAIN=org.nixos.xquartz".X11"

# Initialize defaults (this will cut down on "safe" error messages)
if ! /usr/bin/defaults read $X11_PREFS_DOMAIN cache_fonts > /dev/null 2>&1 ; then
    /usr/bin/defaults write $X11_PREFS_DOMAIN cache_fonts -bool true
fi

if ! /usr/bin/defaults read $X11_PREFS_DOMAIN no_auth > /dev/null 2>&1 ; then
    /usr/bin/defaults write $X11_PREFS_DOMAIN no_auth -bool false
fi

if ! /usr/bin/defaults read $X11_PREFS_DOMAIN nolisten_tcp > /dev/null 2>&1 ; then
    /usr/bin/defaults write $X11_PREFS_DOMAIN nolisten_tcp -bool true
fi

# First, start caching fonts
if [ x`/usr/bin/defaults read $X11_PREFS_DOMAIN cache_fonts` = x1 ] ; then
    @FONT_CACHE@ &
fi

# a race to create /tmp/.X11-unix
@PRIVILEGED_STARTX@

if [ x`/usr/bin/defaults read $X11_PREFS_DOMAIN no_auth` = x0 ] ; then
    enable_xauth=1
else
    enable_xauth=0
fi

if [ x`defaults read $X11_PREFS_DOMAIN nolisten_tcp` = x1 ] ; then
    defaultserverargs="$defaultserverargs -nolisten tcp"
fi

# The second check is the real one.  The first is to hopefully avoid
# needless syslog spamming.
if /usr/bin/defaults read $X11_PREFS_DOMAIN 2> /dev/null | grep -q 'dpi' && /usr/bin/defaults read $X11_PREFS_DOMAIN dpi > /dev/null 2>&1 ; then
    defaultserverargs="$defaultserverargs -dpi `/usr/bin/defaults read $X11_PREFS_DOMAIN dpi`"
fi

# Automatically determine an unused $DISPLAY
d=0
while true ; do
    [ -e /tmp/.X$d-lock ] || break
    d=$(($d + 1))
done
defaultdisplay=":$d"
unset d

whoseargs="client"
while [ x"$1" != x ]; do
    case "$1" in
    # '' required to prevent cpp from treating "/*" as a C comment.
    /''*|\./''*)
    if [ "$whoseargs" = "client" ]; then
        if [ x"$client" = x ] && [ x"$clientargs" = x ]; then
        client="$1"
        else
        clientargs="$clientargs $1"
        fi
    else
        if [ x"$server" = x ] && [ x"$serverargs" = x ]; then
        server="$1"
        else
        serverargs="$serverargs $1"
        fi
    fi
    ;;
    --)
    whoseargs="server"
    ;;
    *)
    if [ "$whoseargs" = "client" ]; then
        clientargs="$clientargs $1"
    else
        # display must be the FIRST server argument
        if [ x"$serverargs" = x ] && \
         expr "$1" : ':[0-9][0-9]*$' > /dev/null 2>&1; then
        display="$1"
        else
        serverargs="$serverargs $1"
        fi
    fi
    ;;
    esac
    shift
done

# process client arguments
if [ x"$client" = x ]; then
    client=$defaultclient

    # For compatibility reasons, only use startxrc if there were no client command line arguments
    if [ x"$clientargs" = x ]; then
        if [ -f "$userclientrc" ]; then
            client=$userclientrc
        elif [ -f "$sysclientrc" ]; then
            client=$sysclientrc
        fi
    fi
fi

# if no client arguments, use defaults
if [ x"$clientargs" = x ]; then
    clientargs=$defaultclientargs
fi

# process server arguments
if [ x"$server" = x ]; then
    server=$defaultserver

    # For compatibility reasons, only use xserverrc if there were no server command line arguments
    if [ x"$serverargs" = x -a x"$display" = x ]; then
      if [ -f "$userserverrc" ]; then
          server=$userserverrc
      elif [ -f "$sysserverrc" ]; then
          server=$sysserverrc
      fi
    fi
fi

# if no server arguments, use defaults
if [ x"$serverargs" = x ]; then
    serverargs=$defaultserverargs
fi

# if no display, use default
if [ x"$display" = x ]; then
    display=$defaultdisplay
fi

if [ x"$enable_xauth" = x1 ] ; then
    if [ x"$XAUTHORITY" = x ]; then
        XAUTHORITY=$HOME/.Xauthority
        export XAUTHORITY
    fi

    removelist=

    # set up default Xauth info for this machine
    hostname=`/bin/hostname`

    authdisplay=${display:-:0}

    mcookie=`/usr/bin/openssl rand -hex 16`

    if test x"$mcookie" = x; then
        echo "Couldn't create cookie"
        exit 1
    fi
    dummy=0

    # create a file with auth information for the server. ':0' is a dummy.
    xserverauthfile=$HOME/.serverauth.$$
    trap "rm -f '$xserverauthfile'" HUP INT QUIT ILL TRAP KILL BUS TERM
    @XAUTH@ -q -f "$xserverauthfile" << EOF
add :$dummy . $mcookie
EOF

    xserverauthfilequoted=$(echo ${xserverauthfile} | sed "s/'/'\\\\''/g")
    serverargs=${serverargs}" -auth '"${xserverauthfilequoted}"'"

    # now add the same credentials to the client authority file
    # if '$displayname' already exists do not overwrite it as another
    # server man need it. Add them to the '$xserverauthfile' instead.
    for displayname in $authdisplay $hostname$authdisplay; do
        authcookie=`@XAUTH@ list "$displayname" \
        | sed -n "s/.*$displayname[[:space:]*].*[[:space:]*]//p"` 2>/dev/null;
        if [ "z${authcookie}" = "z" ] ; then
            @XAUTH@ -q << EOF
add $displayname . $mcookie
EOF
        removelist="$displayname $removelist"
        else
            dummy=$(($dummy+1));
            @XAUTH@ -q -f "$xserverauthfile" << EOF
add :$dummy . $authcookie
EOF
        fi
    done
fi

eval @XINIT@ \"$client\" $clientargs -- \"$server\" $display $serverargs
retval=$?

if [ x"$enable_xauth" = x1 ] ; then
    if [ x"$removelist" != x ]; then
        @XAUTH@ remove $removelist
    fi
    if [ x"$xserverauthfile" != x ]; then
        rm -f "$xserverauthfile"
    fi
fi

exit $retval