[libvirt] [PATCH 2/4] libvirt-guest.init: quoting variables
Philipp Hahn
hahn at univention.de
Wed Mar 9 08:54:57 UTC 2011
At least protect the $uri variable against further expansion by properly
quoting it. While doing that, also quote all other variables to protect
against shell meta characters.
Signed-off-by: Philipp Hahn <hahn at univention.de>
---
tools/libvirt-guests.init.sh | 74 ++++++++++++++++++++---------------------
1 files changed, 36 insertions(+), 38 deletions(-)
diff --git a/tools/libvirt-guests.init.sh b/tools/libvirt-guests.init.sh
index ea2189e..ab2b907 100644
--- a/tools/libvirt-guests.init.sh
+++ b/tools/libvirt-guests.init.sh
@@ -66,12 +66,10 @@ run_virsh() {
shift
if [ "x$uri" = xdefault ]; then
- conn=
+ virsh "$@" </dev/null
else
- conn="-c $uri"
+ virsh -c "$uri" "$@" </dev/null
fi
-
- virsh $conn "$@" </dev/null
}
run_virsh_c() {
@@ -81,7 +79,7 @@ run_virsh_c() {
list_guests() {
uri=$1
- list=$(run_virsh_c $uri list)
+ list=$(run_virsh_c "$uri" list)
if [ $? -ne 0 ]; then
RETVAL=1
return 1
@@ -89,7 +87,7 @@ list_guests() {
uuids=
for id in $(echo "$list" | awk 'NR > 2 {print $1}'); do
- uuid=$(run_virsh_c $uri dominfo $id | awk '/^UUID:/{print $2}')
+ uuid=$(run_virsh_c "$uri" dominfo "$id" | awk '/^UUID:/{print $2}')
if [ -z "$uuid" ]; then
RETVAL=1
return 1
@@ -104,7 +102,7 @@ guest_name() {
uri=$1
uuid=$2
- name=$(run_virsh_c $uri dominfo $uuid 2>/dev/null | \
+ name=$(run_virsh_c "$uri" dominfo "$uuid" 2>/dev/null | \
sed -ne 's/^Name: *//p')
[ -n "$name" ] || name=$uuid
@@ -116,7 +114,7 @@ guest_is_on() {
uuid=$2
guest_running=false
- info=$(run_virsh_c $uri dominfo $uuid)
+ info=$(run_virsh_c "$uri" dominfo "$uuid")
if [ $? -ne 0 ]; then
RETVAL=1
return 1
@@ -146,25 +144,25 @@ start() {
while read uri list; do
configured=false
for confuri in $URIS; do
- if [ $confuri = $uri ]; then
+ if [ "$confuri" = "$uri" ]; then
configured=true
break
fi
done
- if ! $configured; then
+ if ! "$configured"; then
eval_gettext "Ignoring guests on \$uri URI"; echo
continue
fi
eval_gettext "Resuming guests on \$uri URI..."; echo
for guest in $list; do
- name=$(guest_name $uri $guest)
+ name=$(guest_name "$uri" "$guest")
eval_gettext "Resuming guest \$name: "
- if guest_is_on $uri $guest; then
- if $guest_running; then
+ if guest_is_on "$uri" "$guest"; then
+ if "$guest_running"; then
gettext "already active"; echo
else
- retval run_virsh $uri start "$name" >/dev/null && \
+ retval run_virsh "$uri" start "$name" >/dev/null && \
gettext "done"; echo
fi
fi
@@ -180,15 +178,15 @@ suspend_guest()
uri=$1
guest=$2
- name=$(guest_name $uri $guest)
+ name=$(guest_name "$uri" "$guest")
label=$(eval_gettext "Suspending \$name: ")
printf %s "$label"
- run_virsh $uri managedsave $guest >/dev/null &
+ run_virsh "$uri" managedsave "$guest" >/dev/null &
virsh_pid=$!
while true; do
sleep 1
- kill -0 $virsh_pid >/dev/null 2>&1 || break
- progress=$(run_virsh_c $uri domjobinfo $guest 2>/dev/null | \
+ kill -0 "$virsh_pid" >/dev/null 2>&1 || break
+ progress=$(run_virsh_c "$uri" domjobinfo "$guest" 2>/dev/null | \
awk '/^Data processed:/{print $3, $4}')
if [ -n "$progress" ]; then
printf '\r%s%12s ' "$label" "$progress"
@@ -196,7 +194,7 @@ suspend_guest()
printf '\r%s%-12s ' "$label" "..."
fi
done
- retval wait $virsh_pid && printf '\r%s%-12s\n' "$label" "$(gettext "done")"
+ retval wait "$virsh_pid" && printf '\r%s%-12s\n' "$label" "$(gettext "done")"
}
shutdown_guest()
@@ -204,21 +202,21 @@ shutdown_guest()
uri=$1
guest=$2
- name=$(guest_name $uri $guest)
+ name=$(guest_name "$uri" "$guest")
label=$(eval_gettext "Shutting down \$name: ")
printf %s "$label"
- retval run_virsh $uri shutdown $guest >/dev/null || return
+ retval run_virsh "$uri" shutdown "$guest" >/dev/null || return
timeout=$SHUTDOWN_TIMEOUT
- while [ $timeout -gt 0 ]; do
+ while [ "$timeout" -gt 0 ]; do
sleep 1
timeout=$((timeout - 1))
- guest_is_on $uri $guest || return
- $guest_running || break
- printf '\r%s%-12d ' "$label" $timeout
+ guest_is_on "$uri" "$guest" || return
+ "$guest_running" || break
+ printf '\r%s%-12d ' "$label" "$timeout"
done
- if guest_is_on $uri $guest; then
- if $guest_running; then
+ if guest_is_on "$uri" "$guest"; then
+ if "$guest_running"; then
printf '\r%s%-12s\n' "$label" \
"$(gettext "failed to shutdown in time")"
else
@@ -251,35 +249,35 @@ stop() {
continue
fi
- list=$(list_guests $uri)
+ list=$(list_guests "$uri")
if [ $? -eq 0 ]; then
empty=true
for uuid in $list; do
- $empty || printf ", "
- printf %s "$(guest_name $uri $uuid)"
+ "$empty" || printf ", "
+ printf %s "$(guest_name "$uri" "$uuid")"
empty=false
done
- if $empty; then
+ if "$empty"; then
gettext "no running guests."; echo
else
echo
- echo $uri $list >>"$LISTFILE"
+ echo "$uri" "$list" >>"$LISTFILE"
fi
fi
done
while read uri list; do
- if $suspending; then
+ if "$suspending"; then
eval_gettext "Suspending guests on \$uri URI..."; echo
else
eval_gettext "Shutting down guests on \$uri URI..."; echo
fi
for guest in $list; do
- if $suspending; then
- suspend_guest $uri $guest
+ if "$suspending"; then
+ suspend_guest "$uri" "$guest"
else
- shutdown_guest $uri $guest
+ shutdown_guest "$uri" "$guest"
fi
done
done <"$LISTFILE"
@@ -290,7 +288,7 @@ stop() {
gueststatus() {
for uri in $URIS; do
echo "* $uri URI:"
- retval run_virsh $uri list || echo
+ retval run_virsh "$uri" list || echo
done
}
@@ -330,7 +328,7 @@ case "$1" in
usage 0
;;
start|stop|gueststatus)
- $1
+ "$1"
;;
restart)
stop && start
--
1.7.1
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