Path rewriter affected paths cause crashes in forked child

[dmik]

Involving paths registered in the kLIBC path rewriter causes a crash when doing mkstemp in the forked child (the test case attached). If I use open instead of mkstemp, then the program doesn't crash but instead creates a file in a wrong location.

In the test case I use paths starting with /tmp which is mapped to %TMP% (which is set to D:\Temp). In case of open the file is created in D:\ instead of D:\Temp. I also experience similar troubles with other rewriter paths.

Note that if execute the same mkstemp or open from the parent process, all works as it should.

[dmik]

Somehow the path rewriter table is not operable in the beginning of the forked child.

[Steven Levine]

This ticket duplicates #190. Knut's suggestion at the time was to rewrite the non-WPS part of the the path rewriter DLL to be fork friendly. Unfortunately, the original sources were lost/deleted.

[dmik]

Thanks Steve. Looks like we have to rewrite the path rewriter DLL completely.

[Steven Levine]

ARCAOS 5.x ships with a rewritten path rewriter (prewrite.dll) which resolves this issue.

[Silvan Scherrer]

and what about the non ArcaOS users? How can they install the fixed pathrewriter?