Elijah Newren <newren@xxxxxxxxx> writes: >> Am I missing something or is this really a file system bug? Surely if we >> have opened a file for writing the file permissions when we call >> ftruncate() should be irrelevant? >> ... > Oh, indeed, looks like I can't read late at night. Sorry for the noise. Was wondering the same thing. We open for writing, write one object at a time and when we realize we do not have to, we rewind that stream we are writing into using ftruncate(). It would be a serious problem if we cannot do that.