usr.sbin/bsdconfig/console/ttys

   1 #!/bin/sh
   2 #-
   3 # Copyright (c) 2012-2013 Devin Teske
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 # 1. Redistributions of source code must retain the above copyright
  10 #    notice, this list of conditions and the following disclaimer.
  11 # 2. Redistributions in binary form must reproduce the above copyright
  12 #    notice, this list of conditions and the following disclaimer in the
  13 #    documentation and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25 # SUCH DAMAGE.
  26 #
  27 # $FreeBSD$
  28 #
  29 ############################################################ INCLUDES
  30
  31 BSDCFG_SHARE="/usr/share/bsdconfig"
  32 . $BSDCFG_SHARE/common.subr || exit 1
  33 f_dprintf "%s: loading includes..." "$0"
  34 f_include $BSDCFG_SHARE/dialog.subr
  35 f_include $BSDCFG_SHARE/mustberoot.subr
  36 f_include $BSDCFG_SHARE/sysrc.subr
  37
  38 BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="080.console"
  39 f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
  40
  41 ipgm=$( f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" )
  42 [ $? -eq $SUCCESS -a "$ipgm" ] && pgm="$ipgm"
  43
  44 ############################################################ CONFIGURATION
  45
  46 #
  47 # Location of ttys(5)
  48 #
  49 ETC_TTYS=/etc/ttys
  50
  51 ############################################################ FUNCTIONS
  52
  53 # dialog_menu_main
  54 #
  55 # Display the dialog(1)-based application main menu.
  56 #
  57 dialog_menu_main()
  58 {
  59         local prompt="$msg_ttys_menu_text"
  60         local menu_list="
  61                 '1 $msg_none'                '$msg_none_ttys_desc'
  62                 '2 $msg_ibm_437_vga_default' 'cons25'
  63                 '3 $msg_iso_8859_1'          'cons25l1'
  64                 '4 $msg_iso_8859_2'          'cons25l2'
  65                 '5 $msg_iso_8859_7'          'cons25l7'
  66                 '6 $msg_koi8_r'              'cons25r'
  67                 '7 $msg_koi8_u'              'cons25u'
  68                 '8 $msg_us_ascii'            'cons25w'
  69         " # END-QUOTE
  70         local hline="$hline_choose_a_terminal_type"
  71
  72         local height width rows
  73         eval f_dialog_menu_size height width rows \
  74                                 \"\$DIALOG_TITLE\"     \
  75                                 \"\$DIALOG_BACKTITLE\" \
  76                                 \"\$prompt\"           \
  77                                 \"\$hline\"            \
  78                                 $menu_list
  79
  80         local menu_choice
  81         menu_choice=$( eval $DIALOG \
  82                 --title \"\$DIALOG_TITLE\"         \
  83                 --backtitle \"\$DIALOG_BACKTITLE\" \
  84                 --hline \"\$hline\"                \
  85                 --ok-label \"\$msg_ok\"            \
  86                 --cancel-label \"\$msg_cancel\"    \
  87                 --menu \"\$prompt\"                \
  88                 $height $width $rows               \
  89                 $menu_list                         \
  90                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
  91         )
  92         local retval=$?
  93         f_dialog_menutag_store -s "$menu_choice"
  94
  95         if [ $retval -eq $SUCCESS ]; then
  96                 local item
  97                 item=$( eval f_dialog_menutag2item \
  98                                 \"\$menu_choice\" $menu_list )
  99                 f_dialog_menuitem_store "$item"
 100         fi
 101
 102         return $retval
 103 }
 104
 105 # ttys_set_type $consterm
 106 #
 107 # Set terminal type of `ttyv*' and `cons[0-9]' entries in ttys(5) to $consterm.
 108 #
 109 ttys_set_type()
 110 {
 111         local consterm="$1" err
 112
 113         #
 114         # Create new temporary file to write our ttys(5) update with new types.
 115         #
 116         local tmpfile="$( mktemp -t "pgm" )"
 117         [ "$tmpfile" ] || return $FAILURE
 118
 119         #
 120         # Fixup permissions and ownership (mktemp(1) creates the temporary file
 121         # with 0600 permissions -- change the permissions and ownership to
 122         # match ttys(5) before we write it out and mv(1) it into place).
 123         #
 124         local mode="$( stat -f '%#Lp' "$ETC_TTYS" 2> /dev/null )"
 125         local owner="$( stat -f '%u:%g' "$ETC_TTYS" 2> /dev/null )"
 126         f_quietly chmod "${mode:-0644}" "$tmpfile"
 127         f_quietly chown "${owner:-root:wheel}" "$tmpfile"
 128
 129         #
 130         # Operate on ttys(5), replacing only the types of `ttyv*' and
 131         # `cons[0-9]' terminals with the new type.
 132         #
 133         if ! err=$( awk -v consterm="$consterm" '
 134         BEGIN {
 135         }
 136         {
 137                 # "Skip" blank-lines, lines containing only whitespace, and
 138                 # lines containing only a comment or whitespace-then-comment.
 139                 #
 140                 if ( $0 ~ /^[[:space:]]*(#|$)/ ) { print; next }
 141
 142                 # "Skip" terminal types other than those supported
 143                 #
 144                 if ( $1 !~ /^(ttyv.*|cons[0-9])$/ ) { print; next }
 145
 146                 # Change the terminal type to the new value
 147                 #
 148                 match($0, /[[:alnum:]\.\+-_]+[[:space:]]+(on|off).*$/)
 149                 if ( ! RSTART ) { print; next }
 150                 left = substr($0, 0, RSTART - 1)
 151                 match($0, /[[:space:]]+(on|off).*$/)
 152                 right = substr($0, RSTART)
 153                 printf "%s%s%s\n", left, consterm, right
 154         }
 155         ' "$ETC_TTYS" > "$tmpfile" 2>&1 ); then
 156                 f_dialog_msgbox "$err"
 157                 return $FAILURE
 158         fi
 159         if ! err=$( mv -f "$tmpfile" "$ETC_TTYS" 2>&1 ); then
 160                 f_dialog_msgbox "$err"
 161                 return $FAILURE
 162         fi
 163
 164         return $SUCCESS
 165 }
 166
 167 ############################################################ MAIN
 168
 169 # Incorporate rc-file if it exists
 170 [ -f "$HOME/.bsdconfigrc" ] && f_include "$HOME/.bsdconfigrc"
 171
 172 #
 173 # Process command-line arguments
 174 #
 175 while getopts h$GETOPTS_STDARGS flag; do
 176         case "$flag" in
 177         h|\?) f_usage $BSDCFG_LIBE/$APP_DIR/USAGE "PROGRAM_NAME" "$pgm" ;;
 178         esac
 179 done
 180 shift $(( $OPTIND - 1 ))
 181
 182 #
 183 # Initialize
 184 #
 185 f_dialog_title "$msg_system_console_terminal_type"
 186 f_dialog_backtitle "${ipgm:+bsdconfig }$pgm"
 187 f_mustberoot_init
 188
 189 #
 190 # Launch application main menu
 191 #
 192 dialog_menu_main || f_die
 193 f_dialog_menutag_fetch mtag
 194
 195 [ "$mtag" = "1 $msg_none" ] && exit $SUCCESS
 196
 197 f_dialog_menuitem_fetch consterm
 198 ttys_set_type "$consterm" || f_die
 199
 200 exit $SUCCESS
 201
 202 ################################################################################
 203 # END
 204 ################################################################################