#!/bin/sh
#
# /dev/MAKEDEV
# A very simple script that can be used to create some of the more
# common device nodes found in /dev.  This script is not intended to
# create every possible device needed on every possible system.  For
# additional devices, refer to http://www.lanana.org/docs/device-list/
# for device numbers and the mknod manpage for how to create them.
#
#
# This script is public domain software and may be freely copied.
#
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
#
# Read all of the command-line arguments as a single string.
CMD_LINE=$*

# If no command-line arguments were given, assume it's a cry for help.
if [ "$CMD_LINE" = "" ]; then
  CMD_LINE="--help"
fi

# Look at the command-line arguments one at a time.
for DEV_FAMILY in $CMD_LINE; do

# Check to see if the argument fits one of the following and act on it.
  case $DEV_FAMILY in

# These are the device nodes that probably every system needs
  basic)
    mknod -m622 console c 5 1
    mknod -m666 null c 1 3
    mknod -m444 zero c 1 5
    mknod -m444 random c 1 8
    mknod -m666 tty c 5 0
    mkdir pts
    ln -s /proc/self/fd
    ln -s fd/0 stdin
    ln -s fd/1 stdout
    ln -s fd/2 stderr
  ;;

# The following device family names should be self-explanatory.

  floppy-disk|fd)
    mknod -m660 fd0 b 2 0
    mknod -m660 fd1 b 2 1
  ;;

  ide-disk|hd)
    mknod -m660 hda b 3 0
    mknod -m660 hdb b 3 64
    mknod -m660 hdc b 22 0
    mknod -m660 hdd b 22 64
    for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do
      mknod -m660 hda$i b 3 $i
      mknod -m660 hdb$i b 3 $((64+$i))
      mknod -m660 hdc$i b 22 $i
      mknod -m660 hdd$i b 22 $((64+$i))
    done
  ;;

  ide-tape|ht)
    mknod -m660 ht0 c 37 0
    mknod -m660 ht1 c 37 1
  ;;

  loopback|loop)
    for i in 0 1 2 3 4 5 6 7; do
      mknod -m660 loop$i b 7 $i
    done
  ;;

  mouse)
    mkdir input
    mknod -m666 input/mice c 13 63
  ;;

  multi-disk|md)
    for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do
      mknod -m660 md$i b 9 $i
    done
  ;;

  parallel-printer|lp)
    mknod -m660 lp0 c 6 0
    mknod -m660 lp1 c 6 1
  ;;

  ram-disk|ram)
    for i in 0 1 2 3 4 5 6 7; do
      mknod -m660 ram$i b 1 $i
    done
  ;;

  scsi-cd|sr)
    mknod -m660 sr0 b 11 0
    mknod -m660 sr1 b 11 1
  ;;

  scsi-disk|sd)
    mknod -m660 sda b 8 0
    mknod -m660 sdb b 8 16
    mknod -m660 sdc b 8 32
    mknod -m660 sdd b 8 48
    for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do
      mknod -m660 sda$i b 8 $i
      mknod -m660 sdb$i b 8 $((16+$i))
      mknod -m660 sdc$i b 8 $((32+$i))
      mknod -m660 sdd$i b 8 $((48+$i))
    done
  ;;

  scsi-tape|st)
    mknod -m660 st0 c 9 0
    mknod -m660 st1 c 9 1
  ;;
 
  serial|ttyS)
    mknod -m660 ttyS0 c 4 64
    mknod -m660 ttyS1 c 4 65
  ;;

  telnet|pty)
    for i in 0 1 2 3 4 5 6 7; do
      mknod -m600 ptyp$i c 2 $i
      mknod -m600 ttyp$i c 3 $i
    done
  ;;

  virtual-console|tty)
    for i in 0 1 2 3 4 5 6 7; do
      mknod -m622 tty$i c 4 $i
    done
  ;;

  --help|-h)
    echo "usage: $0 <device-family>"
    echo "  where <device-family> is described as follows:"
    echo "  basic             console, null, zero, stdin, stdout, stderr"
    echo "  floppy-disk       fd0, fd1"
    echo "  ide-disk          hda[1-15], hdb[1-15], hdc[1-15], hdd[1-15]"
    echo "  ide-tape          ht0, ht1"
    echo "  loopback          loop[0-7]"
    echo "  mouse             input/mice"
    echo "  multi-disk        md[0-15]"
    echo "  parallel-printer  lp0, lp1"
    echo "  ram-disk          ram[0-7]"
    echo "  scsi-cd           sr0, sr1"
    echo "  scsi-disk         sda[1-15], sdb[1-15], sdc[1-15], sdd[1-15]"
    echo "  scsi-tape         st0, st1"
    echo "  serial            ttyS0, ttyS1"
    echo "  telnet            ptyp[0-7], ttyp[0-7]"
    echo "  virtual-console   tty[0-7]"
  ;;

  *)
    echo "Unknown device family: $DEV_FAMILY.  Try $0 --help."
  ;;

  esac

done