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Commit0dcc73f

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Ensure xmlFree(NULL) is a no-op instead of a core dump. Per report from
Sergey Burladyan, there are at least some dank corners of libxml2 thatassume this behavior, even though their published documentation suggeststhey shouldn't.This is only really a live problem in 8.3, but the code is still therefor possible debugging use in HEAD, so patch both branches.
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  • src/backend/utils/adt

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‎src/backend/utils/adt/xml.c‎

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@@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.90 2009/06/09 22:00:57 petere Exp $
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* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.91 2009/06/10 03:44:35 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -1293,7 +1293,9 @@ xml_repalloc(void *ptr, size_t size)
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staticvoid
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xml_pfree(void*ptr)
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{
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pfree(ptr);
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/* At least some parts of libxml assume xmlFree(NULL) is allowed */
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if (ptr)
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pfree(ptr);
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}
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