Hi folks!

I'm trying to figure out how i'm supposed to free memory when i get a pointer to a string buffer allocated by my underlying library.

https://github.com/phinze/xml_security/blob/ebd1743f7ab493b6565137ace8d60ad3e5bac52b/lib/xml_security.rb#L216-L224

The docs for xmlDocDumpFormatMemory say it's my responsibility to free the allocated memory with xmlFree [1]. But if i try to call xmlFree on the ptr or the strptr i get segfaults, and MemoryPointer#free seems to not cork the leak.

Any guidance would be much appreciated,

Paul Hinze


[1] http://xmlsoft.org/html/libxml-tree.html#xmlDocDumpFormatMemory

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