eve tool: replace wget with nc

in order to keep the image small and reduce the attack surface
wget may be removed in the future, so instead use nc

Signed-off-by: Christoph Ostarek <christoph@zededa.com>

pkg/dom0-ztools/rootfs/bin/eve

@@ -98,19 +98,19 @@ http_debug_request() {
         pkill -USR2 /opt/zededa/bin/zedbox
     fi
 
-    wget -O - "$URL" --post-data ''
+    printf "POST $URL HTTP/1.0\r\n\r\n" | nc 127.1 6543
 
     if [ "$running" = "0" ]; then
-        wget -O - 127.1:6543/stop --post-data '' > /dev/null 2>&1
+	printf "POST /stop HTTP/1.0\r\n\r\n" | nc 127.1 6543
     fi
 }
 
 dump_stacks() {
-    http_debug_request "127.1:6543/dump/stacks"
+    http_debug_request "/dump/stacks"
 }
 
 dump_mem() {
-    http_debug_request "127.1:6543/dump/memory"
+    http_debug_request "/dump/memory"
 }
 
 case "$1" in
@@ -180,7 +180,7 @@ __EOT__
               echo "Use ssh -L6543:localhost:6543 root@... to forward the http port"
               echo "Visit http://localhost:6543 with your browser"
           elif [ "$2" = "stop" ]; then
-              wget -O - 127.1:6543/stop --post-data '' > /dev/null 2>&1
+	      printf "POST /stop HTTP/1.0\r\n\r\n" | nc 127.1 6543
           else
               echo "Unknown command; use 'start' or 'stop'"
           fi