Em sex., 14 de mai. de 2021 às 19:52, Tom Lane <tgl@sss.pgh.pa.us> escreveu:
I wrote: > So the question for us is whether it's worth trying to make pgreadlink > conform to the letter of the POSIX spec in this detail. TBH, I can't > get excited about that, at least not so far as zic's usage is concerned.
Hmmm ... on closer inspection, though, it might not be that hard. pgreadlink is already using a fixed-length buffer (with only enough room for MAX_PATH WCHARs) for the input of WideCharToMultiByte. So it could use a fixed-length buffer of say 4 * MAX_PATH bytes for the output, and then transfer just the appropriate amount of data to the caller's buffer.
Following your directions, maybe something like this will solve?
