Fix segfaults with ArcSDE BLOB/CLOB/NCLOB fields

[mapserver-bot]

Reporter: aalbarello
Date: 2010/08/03 - 17:42
Trac URL: http://trac.osgeo.org/mapserver/ticket/3508
The supplied patch fixes random segfaults and weird SDE error messages that I've been getting on several layers with NCLOB fields. It appears that the appropriate SE_BLOB_INFO/SE_CLOB_INFO/SE_NCLOB_INFO struct needs to be completely zeroed out before calling SE_stream_get_*lob (not that there's anything wrong with zeroing them out, it's good practice anyway, it's just weird that SDE would be doing anything with them anyway before filling them in).

[mapserver-bot]

attachment http://trac.osgeo.org/mapserver/attachment/ticket/3508/sde_lobs.diff :

[petlof]

This resolved some segfault-issues for me as well with ArcSDE 10 (in 5.6.8), could this patch be merged if not already done?

[szekerest]

I think I've already fixed this within the scope of this issue
#3001

[petlof]

It was not present in 5.6.8, but thats a pretty old release anyway but some of us are stuck there... Just wanted to verify that the fix applies for 6.x code

[szekerest]

Fix should exist in branch-6-0, branch-6-2 and master.

[jratike80]

Since MS 7.0 native ESRI SDE layers are no longer supported (see #5068).