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authorRoland McGrath <roland@gnu.org>1999-05-23 22:26:45 +0000
committerRoland McGrath <roland@gnu.org>1999-05-23 22:26:45 +0000
commit7965ea2e68c125c1947f27195100a58a825b153e (patch)
treee9ba6d01a18fe6a99912595e75516331f135013e /sutils
parent1f777eecff0ddd254758579f87426c3dfb200d1c (diff)
1999-05-23 Roland McGrath <roland@baalperazim.frob.com>
* MAKEDEV.sh (ECHO, EXEC): Do not export. (DEVDIR): Initialize to `pwd` before argument parsing. (_CWD): Don't set this. (lose): New function. Use it for all miscellaneous fatal errors. (mkdev): Disallow directory names. Always use ${DEVDIR} for name to embed in translator settings. Rewrite syntax checking for disk device names.
Diffstat (limited to 'sutils')
-rw-r--r--sutils/MAKEDEV.sh107
1 files changed, 60 insertions, 47 deletions
diff --git a/sutils/MAKEDEV.sh b/sutils/MAKEDEV.sh
index 358b95dc..fc7ec6ab 100644
--- a/sutils/MAKEDEV.sh
+++ b/sutils/MAKEDEV.sh
@@ -5,9 +5,9 @@
PATH=/bin:/usr/bin
-ECHO=: # Change to "echo" to echo commands
-EXEC="" # Change to ":" to suppress command execution
-export ECHO EXEC
+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
@@ -68,30 +68,28 @@ function st {
fi
}
-case ${DEVDIR+set} in
- set) export DEVDIR;;
- *) _CWD="`pwd`";;
-esac
+function lose {
+ local line
+ for line; do
+ echo 1>&2 "$0: $line"
+ done
+ exit 1
+}
function mkdev {
local I
for I; do
- local B="${I##*/}"
- case "$B" in
+ case "$I" in
+ /* | */*)
+ lose "Device names cannot contain directories" \
+ "Change to target directory and run $0 from there."
+ ;;
+
std)
- local dir="`dirname $I`"
- mkdev $dir/console $dir/tty $dir/null $dir/zero $dir/fd $dir/time
+ mkdev console tty null zero fd time
;;
console|tty[0-9][0-9a-f]|tty[0-9a-f]|com[0-9])
- local dn # runtime device name
- case "${DEVDIR+set}" in
- set) dn="$DEVDIR/$B";;
- "") case "$I" in
- /*) dn="$I";;
- *) dn="$_CWD/$I";;
- esac;;
- esac
- st $I root 600 /hurd/term $dn device $B;;
+ st $I root 600 /hurd/term ${DEVDIR}/$I device $I;;
null)
st $I root 666 /hurd/null;;
zero)
@@ -99,57 +97,72 @@ function mkdev {
tty)
st $I root 666 /hurd/magic tty;;
fd)
- local dir="`dirname $I`"
st $I root 666 /hurd/magic fd
- cmd ln -f -s fd/0 $dir/stdin
- cmd ln -f -s fd/1 $dir/stdout
- cmd ln -f -s fd/2 $dir/stderr
+ cmd ln -f -s fd/0 stdin
+ cmd ln -f -s fd/1 stdout
+ cmd ln -f -s fd/2 stderr
;;
'time')
st $I root 644 /hurd/storeio time ;;
# ptys
[pt]ty[pqrstuvwxyzPQRST]?)
- # Make one pty, both the master and slave halves
- local id="${B:3}"
- local dir="`dirname $I`"
- local dd
- case "${DEVDIR+set}" in
- set) dd="$DEVDIR";;
- "") case "$I" in
- /*) dd="$dir";;
- */*) dd="$_CWD/$dir";;
- *) dd="$_CWD";;
- esac;;
- esac
- st $dir/pty$id root 640 /hurd/term $dd/pty$id pty-master $dd/tty$id
- st $dir/tty$id root 640 /hurd/term $dd/tty$id pty-slave $dd/pty$id
+ # Make one pty, both the master and slave halves.
+ local id="${I:3}"
+ st pty$id root 640 /hurd/term ${DEVDIR}/pty$id \
+ pty-master ${DEVDIR}/tty$id
+ st tty$id root 640 /hurd/term ${DEVDIR}/tty$id \
+ pty-slave ${DEVDIR}/pty$id
;;
[pt]ty[pqrstuvwxyzPQRST])
- # Make a bunch of ptys
+ # 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 $B
+ st $I root 640 /hurd/storeio $I
;;
[hrsc]d*)
- case "$B" in
- [a-z][a-z][0-9][a-z] | [a-z][a-z][0-9]s[1-9] | [a-z][a-z][0-9]s[1-9][a-z] | [a-z][a-z][0-9])
- st $I root 640 /hurd/storeio $B
+ local n="${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
;;
*)
- echo 1>&2 $0: $B: Invalid device name: must supply a device number
- exit 1
+ lose "$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
;;
*)
- echo >&2 $0: $B: Unknown device name
- exit 1
+ lose "$I: Unknown device name"
;;
esac
done