[XERCESC-1968] Xerces livelocks while reading external DTD if socket closes prematurely

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.1, 3.1.1
• Fix Version/s: 3.1.2, 3.2.0
• Component/s: Utilities
• Environment: Windows 7 64bit, VS 2008 SP1, distributed and self-built binaries
• Assignee: Alberto Massari
• Reporter: Charlie Lawrence
• Created: 18/Jun/11 00:25
• Updated: 28/Feb/15 01:39
• Resolved: 20/Apr/12 15:42

Description

When loading an external DTD and if the socket on the other end closes before any data is read, xerces can get into a live-lock situation.
If the OS call "recv" returns 0, which it can, the loop in BinHTTPInputStreamCommon::sendRequest will spin forever.

The attached contains an example and sample content which demonstrates the issue.