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* syscalls.cc (rename): Handle a special case of trying to rename a

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mount point.
This commit is contained in:
Corinna Vinschen
2008-03-12 18:46:10 +00:00
parent a66789a0c0
commit 48726c8a06
2 changed files with 18 additions and 5 deletions
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5
winsup/cygwin/ChangeLog
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@@ -1,3 +1,8 @@
2008-03-12 Corinna Vinschen <corinna@vinschen.de>
* syscalls.cc (rename): Handle a special case of trying to rename a
mount point.
2008-03-12 Corinna Vinschen <corinna@vinschen.de> 2008-03-12 Corinna Vinschen <corinna@vinschen.de>
* environ.h: Fix comment. * environ.h: Fix comment.

18
winsup/cygwin/syscalls.cc
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@@ -1573,13 +1573,21 @@ rename (const char *oldpath, const char *newpath)
/* First check if oldpath and newpath only differ by case. If so, it's /* First check if oldpath and newpath only differ by case. If so, it's
just a request to change the case of the filename. By simply setting just a request to change the case of the filename. By simply setting
the file attributes to INVALID_FILE_ATTRIBUTES (which translates to the file attributes to INVALID_FILE_ATTRIBUTES (which translates to
"file doesn't exist"), all later tests are skipped. */ "file doesn't exist"), all later tests are skipped.
if (newpc.exists () If not, it's a request to change the case of the name of a mount
&& equal_path point. If we don't catch this here, the underlying directory would
&& !RtlEqualUnicodeString (oldpc.get_nt_native_path (), be deleted, if it happens to be empty. */
if (newpc.exists () && equal_path)
{
if (RtlEqualUnicodeString (oldpc.get_nt_native_path (),
newpc.get_nt_native_path (), newpc.get_nt_native_path (),
FALSE)) FALSE))
newpc.file_attributes (INVALID_FILE_ATTRIBUTES); {
set_errno (EACCES);
goto out;
}
newpc.file_attributes (INVALID_FILE_ATTRIBUTES);
}
else if (oldpc.isdir ()) else if (oldpc.isdir ())
{ {
if (newpc.exists () && !newpc.isdir ()) if (newpc.exists () && !newpc.isdir ())