get_global_ip が空文字を返した場合にglobalip.txtが空になる問題を修正

diff --git a/global_ip_chk.sh b/global_ip_chk.sh
index 7c3fe25e6140c7eafb91f73cef981821892126ee..02fae43e571bfda3a191a36017792c8725a3be9f 100755 (executable)
--- a/global_ip_chk.sh
+++ b/global_ip_chk.sh
@@ -13,7 +13,7 @@ WGET=/usr/bin/wget
 IPCHECKSERVER=ipcheck.ieserver.net
 
 NOWIP=$(${WGET} -q -O - ${IPCHECKSERVER})
-if ${TEST} -s ${IPFILE}; then
+if ${TEST} -n "${NOWIP}" -a -s ${IPFILE}; then
     CACHEIP=$(${CAT} ${IPFILE})
 else
     CACHEIP=0.0.0.0