scripts/qemustart: fix usage with networking support

Commit 8bf500eb79 added support for qemu usage without networking
support but broke networking support as -n and -z do not work with
unquoted argument; fix this by quoting the arguments.

Fixes 8bf500eb79

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

diff --git a/scripts/qemustart b/scripts/qemustart
index 951f2252722ec8221dc1f94ec14981b9192f60e2..076d4bbcfe43723014334809d0f71b46a1b5f08f 100755 (executable)
--- a/scripts/qemustart
+++ b/scripts/qemustart
@@ -74,7 +74,7 @@ check_setup_() {
 }
 
 check_setup() {
-       [ -z $o_nonetwork ] || return 0
+       [ -z "$o_nonetwork" ] || return 0
        check_setup_ || {
                __errmsg "please check the script content to see the environment requirement"
                return 1
@@ -187,7 +187,7 @@ start_qemu_armvirt() {
                )
        }
 
-       [ -n $o_nonetwork ] || {
+       [ -n "$o_nonetwork" ] || {
                o_qemu_extra+=( \
                        "-netdev" "bridge,id=lan,br=$BR_LAN,helper=$HELPER" \
                            "-device" "virtio-net-pci,id=devlan,netdev=lan,mac=$MAC_LAN" \
@@ -229,7 +229,7 @@ start_qemu_malta() {
        # NOTE: order of wan, lan -device arguments matters as it will affect which
        # one will be actually used as the wan, lan network interface inside the
        # guest machine
-       [ -n $o_nonetwork ] || {
+       [ -n "$o_nonetwork" ] || {
                o_qemu_extra+=( \
                        "-netdev" "bridge,id=wan,br=$BR_WAN,helper=$HELPER" "-device" \
                            "virtio-net-pci,id=devwan,netdev=wan,mac=$MAC_WAN" \
@@ -276,7 +276,7 @@ start_qemu_x86() {
            )
        }
 
-       [ -n $o_nonetwork ] || {
+       [ -n "$o_nonetwork" ] || {
                o_qemu_extra+=( \
                        "-netdev" "bridge,id=lan,br=$BR_LAN,helper=$HELPER" \
                            "-device" "virtio-net-pci,id=devlan,netdev=lan,mac=$MAC_LAN" \