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Fix incorrect path conversion on non-existent files on network shares

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NtOpenFile/NtCreateFile on non-existent paths on network drives has a
bug.  Assuming a path Z:\dir\file.  Further assuming that Z:\dir does
not exist.

The first NtOpenFile("Z:\dir\file") correctly returns
STATUS_OBJECT_PATH_NOT_FOUND.  Subsequent calls incorrectly
return STATUS_OBJECT_NAME_NOT_FOUND.

This appears to be some kind of caching behaviour.  Waiting a while
before repeating the call correctly returns STATUS_OBJECT_PATH_NOT_FOUND
again.

This patch works around the observed misbehaviour.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2016-12-13 12:48:05 +01:00
parent 937a2d92e2
commit 563dda8259
1 changed files with 7 additions and 0 deletions
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7
winsup/cygwin/path.cc
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@ -2810,6 +2810,13 @@ restart:
|| status == STATUS_NO_MEDIA_IN_DEVICE)
{
set_error (ENOENT);
if (ext_tacked_on && !had_ext)
{
*ext_here = '\0';
ext_tacked_on = false;
ext_here = NULL;
extn = 0;
}
goto file_not_symlink;
}
if (status != STATUS_OBJECT_NAME_NOT_FOUND