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* path.cc (symlink_info::check_reparse_point): Always check

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SubstituteName for volume string to recognize volume mount points.
	Reuse subst when calling sys_wcstombs.
	* syscalls.cc (rename): Set errno to EBUSY when trying to rename
	volume mount points.  Explain why.
This commit is contained in:
Corinna Vinschen
2009-11-09 19:46:36 +00:00
parent ed66791aba
commit 16a72f7e4b
3 changed files with 21 additions and 6 deletions
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9
winsup/cygwin/path.cc
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@ -1873,18 +1873,15 @@ symlink_info::check_reparse_point (HANDLE h)
(WCHAR *)((char *)rp->MountPointReparseBuffer.PathBuffer
+ rp->MountPointReparseBuffer.SubstituteNameOffset),
rp->MountPointReparseBuffer.SubstituteNameLength);
if (rp->MountPointReparseBuffer.PrintNameLength == 0
|| RtlEqualUnicodePathPrefix (&subst, &ro_u_volume, TRUE))
if (RtlEqualUnicodePathPrefix (&subst, &ro_u_volume, TRUE))
{
/* Volume mount point. Not treated as symlink. The return
value of -1 is a hint for the caller to treat this as a
volume mount point. */
return -1;
}
sys_wcstombs (srcbuf, SYMLINK_MAX + 1,
(WCHAR *)((char *)rp->MountPointReparseBuffer.PathBuffer
+ rp->MountPointReparseBuffer.SubstituteNameOffset),
rp->MountPointReparseBuffer.SubstituteNameLength / sizeof (WCHAR));
sys_wcstombs (srcbuf, SYMLINK_MAX + 1, subst.Buffer,
subst.Length / sizeof (WCHAR));
pflags = PATH_SYMLINK | PATH_REP;
fileattr &= ~FILE_ATTRIBUTE_DIRECTORY;
}