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Diffstat (limited to 'sutils/MAKEDEV.sh')
| -rw-r--r-- | sutils/MAKEDEV.sh | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/sutils/MAKEDEV.sh b/sutils/MAKEDEV.sh new file mode 100644 index 00000000..511deed2 --- /dev/null +++ b/sutils/MAKEDEV.sh @@ -0,0 +1,181 @@ +#!/bin/sh +# +# Make standard devices +# + +PATH=/bin:/usr/bin + +ECHO=: # Change to "echo" to echo commands. +EXEC="" # Change to ":" to suppress command execution. +DEVDIR=`pwd` # Reset below by -D/--devdir command line option. + +while :; do + case "$1" in + --help|"-?") + echo "\ +Usage: $0 [OPTION...] DEVNAME... +Make filesystem nodes for accessing standard system devices + + -D, --devdir=DIR Use DIR when a device node name must be + embedded in a translator; default is the cwd + -n, --dry-run Don't actually execute any commands + -v, --verbose Show what commands are executed to make the devices + -?, --help Give this help list + --usage Give a short usage message + -V, --version Print program version" + exit 0;; + --devdir) DEVDIR="$2"; shift 2;; + --devdir=*) DEVDIR="`echo "$1" | sed 's/^--devdir=//'`"; shift 1;; + -D) DEVDIR="$2"; shift 2;; + -D*) DEVDIR="`echo "$1" | sed 's/^-D//'`"; shift 1;; + --verbose|-v) ECHO=echo; shift;; + --dry-run|-n) EXEC=:; shift;; + -nv|-vn) ECHO=echo; EXEC=:; shift;; + --usage) + echo "Usage: $0 [-V?] [-D DIR] [--help] [--usage] [--version] [--devdir=DIR] DEVNAME..." + exit 0;; + --version|-V) + echo "STANDARD_HURD_VERSION_MAKEDEV_"; exit 0;; + -*) + echo 1>&2 "$0: unrecognized option \`$1'" + echo 1>&2 "Try \`$0 --help' or \`$0 --usage' for more information"; + exit 1;; + *) + break;; + esac +done + +case "$#" in 0) + echo 1>&2 "Usage: $0 [OPTION...] DEVNAME..." + echo 1>&2 "Try \`$0 --help' or \`$0 --usage' for more information" + exit 1;; +esac + +function cmd { + eval $ECHO "$@" + eval $EXEC "$@" +} + +function st { + local NODE="$1" + local OWNER="$2" + local PERM="$3" + shift 3 + if cmd settrans -cg "$NODE"; then + cmd chown "$OWNER" "$NODE" + cmd chmod "$PERM" "$NODE" + cmd settrans "$NODE" "$@" + fi +} + +function lose { + local line + for line; do + echo 1>&2 "$0: $line" + done + exit 1 +} + +function mkdev { + local I + for I; do + case "$I" in + /* | */*) + lose "Device names cannot contain directories" \ + "Change to target directory and run $0 from there." + ;; + + std) + mkdev console tty null zero full fd time mem + ;; + console|tty[0-9][0-9a-f]|tty[0-9a-f]|com[0-9]) + st $I root 600 /hurd/term ${DEVDIR}/$I device $I;; + null) + st $I root 666 /hurd/null;; + full) + st $I root 666 /hurd/null --full;; + zero) + st $I root 666 /hurd/storeio -Tzero;; + tty) + st $I root 666 /hurd/magic tty;; + fd) + st $I root 666 /hurd/magic --directory fd + cmd ln -f -s fd/0 stdin + cmd ln -f -s fd/1 stdout + cmd ln -f -s fd/2 stderr + ;; + 'time') + st $I root 644 /hurd/storeio --no-cache time ;; + mem) + st $I root 660 /hurd/storeio --no-cache mem ;; + + # ptys + [pt]ty[pqrstuvwxyzPQRST]?) + # Make one pty, both the master and slave halves. + local id="${I:3}" + st pty$id root 666 /hurd/term ${DEVDIR}/pty$id \ + pty-master ${DEVDIR}/tty$id + st tty$id root 666 /hurd/term ${DEVDIR}/tty$id \ + pty-slave ${DEVDIR}/pty$id + ;; + [pt]ty[pqrstuvwxyzPQRST]) + # Make a bunch of ptys. + mkdev ${I}0 ${I}1 ${I}2 ${I}3 ${I}4 ${I}5 ${I}6 ${I}7 + mkdev ${I}8 ${I}9 ${I}a ${I}b ${I}c ${I}d ${I}e ${I}f + ;; + + fd*|mt*) + st $I root 640 /hurd/storeio $I + ;; + + [hrsc]d*) + local n="${I#?d}" + local major="${n%%[!0-9]*}" + if [ -z "$major" ]; then + lose "$I: Invalid device name: must supply a device number" + fi + local minor="${n##$major}" + case "$minor" in + '') ;; # Whole disk + [a-z]) ;; # BSD partition syntax, no slice syntax + s[1-9]*) # Slice syntax. + local slicestuff="${minor#s}" + local slice="${slicestuff%%[!0-9]*}" + local rest="${slicestuff##$slice}" + case "$slice" in + [1-9] | [1-9][0-9]) ;; + *) + lose "$I: Invalid slice number \`$slice'" + ;; + esac + case "$rest" in + '') ;; # Whole slice + [a-z]) ;; # BSD partition after slice + *) + lose "$I: Invalid partition \`$rest'" + ;; + esac + ;; + *) + lose "$I: Invalid slice or partition syntax" + ;; + esac + + # The device name passed all syntax checks, so finally use it! + st $I root 640 /hurd/storeio $I + ;; + + # Linux compatibility + loop*) + # In Linux an inactive "/dev/loopN" device acts like /dev/null. + # The `losetup' script changes the translator to "activate" the device. + st $I root 640 /hurd/null + ;; + *) + lose "$I: Unknown device name" + ;; + esac + done +} + +mkdev "$@" |