[xml] Memory leak in xmlSAXParseMemory

[Peter Jones <xmlwrapp pmade org>]

I found a small memory leak in xmlSAXParseMemory. It calls
xmlCreateMemoryParserCtxt, which calls xmlNewParserCtxt, which then
calls xmlInitParserCtxt, which finally calls xmlMalloc for a new
xmlSAXHandler.

If a xmlSAXHandler pointer is given to xmlSAXParseMemory, the one
allocated in xmlInitParserCtxt will be leaked. The attached patch
(ctxt-sax.patch) contains a fix.

I also noticed that there is no xmlSAXParseMemoryWithData function. The
second attached patch (withdata.patch) implements one and changes
xmlSAXParseMemory so that it is implemented in terms of
xmlSAXParseMemoryWithData.

Both patches are against parser.c revision 1.225 and parser.h revision
1.79. Let me know if you have any questions.

-- 
Peter Jones, xmlwrapp Senior Developer
http://pmade.org/pjones/software/xmlwrapp/

Attachment: ctxt-sax.patch
Description: Text document

Attachment: withdata.patch
Description: Text document