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>>GetLastError will >>> give much more details than errno. >> >>How much more, really? That mapping table gave me the impression that >>the win32 error codes aren't all that much more detailed than errno... > >The mapping table is not complete. My winerror.h from the SDK >lists 2209 >error codes, whereas errno.h lists 42... > >I still don't think we'll get that much more stuff. Right now, >the Win32 >code paths that actually use the more advanced functions already write >out the error number in case something happens. We can keep doing that >for the other paths (ereport the error *number* when the mapping does >not have a match). The map to errno will catch almost all cases, I >think. And in the corner cases we can do with just the number, and use >"net helpmsg" to get the actual message when checking... Here's an attempt on this. new file goes in backend/port/win32. Magnus Hagander