- require $MODEMPORT being character device (/dev/modem, /dev/tts/USB0)

svn-id: @9424

diff --git a/sysconfig/network-scripts/ifup-ppp b/sysconfig/network-scripts/ifup-ppp
index d0a9871bf45deba0e1971cb95082d381f1253a88..0e49692dfb7af63f430336a211f20c0477155602 100755 (executable)
--- a/sysconfig/network-scripts/ifup-ppp
+++ b/sysconfig/network-scripts/ifup-ppp
@@ -136,6 +136,11 @@ if [ -z "$MODEMPORT" ]; then
        exit 1
 fi
 
+if [ ! -c "$MODEMPORT" ]; then
+       echo >&2 "MODEMPORT=$MODEMPORT is not a character device!"
+       exit 1
+fi
+
 if [ -z "$HOLDOFF" ]; then
        HOLDOFF=30
 fi