*BSDs: don't inadvertently pick up a bogus 0.0.0.0/32 route as a default route

See https://gitlab.com/openconnect/vpnc-scripts/-/merge_requests/9#note_465753189 for example and discussion.

Signed-off-by: Daniel Lenski <dlenski@gmail.com>

diff --git a/vpnc-script b/vpnc-script
index 069a7a152c28f2e4089c7f048956800689113d95..33286816b75665b5da319c7fafdb906fc3c2cff3 100755 (executable)
--- a/vpnc-script
+++ b/vpnc-script
@@ -400,7 +400,7 @@ else # use route command
                # Get rid of lines containing IPv6 addresses (':')
                # Get rid of lines for link-local routes (https://superuser.com/a/1067742)
                # Get rid of lines containing $TUNDEV (we don't want loopback)
-               netstat -r -n | awk '/:/ { next; } /link\#/ { next; } /\s'"$TUNDEV"'(\s|$)/ { next; } /^(default|0\.0\.0\.0)/ { print $2; exit; }'
+               netstat -r -n | awk '/:/ { next; } /link\#/ { next; } /\s'"$TUNDEV"'(\s|$)/ { next; } /^(default|0\.0\.0\.0(\s|\/0))/ { print $2; exit; }'
        }
 
        set_vpngateway_route() {