'==' can not compare file handles. We can use fileno() function to
compare numerically file numbers. Code without this returns
"connection successful" when it timeouts and $fd is "undefined".

git-svn-id: https://labs.omniti.com/resmon/branches/resmon2@324 8c0face9-b7db-6ec6-c4b3-d5f7145c7d55

git-svn-id: https://labs.omniti.com/resmon/branches/resmon2@318 8c0face9-b7db-6ec6-c4b3-d5f7145c7d55