[postgis-tickets] [PostGIS] #3786: OSS FUZZ fixes

[PostGIS]

#3786: OSS FUZZ fixes
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 Reporter:  robe     |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:  PostGIS 2.4.0
Component:  postgis  |    Version:  trunk
 Keywords:           |
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 I've started an attempt to resolve OSS FUZZ complaints.

 Pull request here, for your input.

 https://git.osgeo.org/gogs/postgis/postgis/pulls/15


 strk doesn't think my change should have made a difference but I tested
 two times.  without the change segmentation fault with change no
 segmentation fault.

 My assumption is because the *_cp functions do more checking and internal
 does pretty much none.


 In hind-sight I probably could have achieved the same affect by swapping
 out calls to getPoint2d_internal with getPoint2d_cp without having to
 resort to declaring POINT2D variables.

 I still need to get the extra CPP flags enabled to confirm I got all the
 issues in this bug ticket.

 https://oss-fuzz.com/v2/testcase-detail/4733660446064640?noredirect=1

 Since it complained about others

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3786>
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