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* fhandler_procsys.cc (fhandler_procsys::open): Simplify by just

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calling fhandler_base::open.
This commit is contained in:
Corinna Vinschen 2010-09-08 09:10:21 +00:00
parent fa3ab15b1c
commit f99de2b3d2
2 changed files with 25 additions and 62 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,6 +1,7 @@
2010-09-07 Christopher Faylor <me+cygwin@cgf.cx>
2010-09-08 Corinna Vinschen <corinna@vinschen.de>
*
* fhandler_procsys.cc (fhandler_procsys::open): Simplify by just
calling fhandler_base::open.
2010-09-06 Corinna Vinschen <corinna@vinschen.de>

82
winsup/cygwin/fhandler_procsys.cc
View File

@ -339,70 +339,32 @@ fhandler_procsys::write (const void *ptr, size_t len)
int
fhandler_procsys::open (int flags, mode_t mode)
{
UNICODE_STRING path;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE h;
ULONG access;
ULONG options = FILE_OPEN_FOR_BACKUP_INTENT;
int res = 0;
int res = fhandler_virtual::open (flags, mode);
if (!res)
goto out;
if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL) || (flags & O_TRUNC))
{
set_errno (EINVAL);
res = 0;
goto out;
}
mk_unicode_path (&path);
InitializeObjectAttributes (&attr, &path, OBJ_INHERIT | OBJ_CASE_INSENSITIVE,
NULL, NULL);
switch (exists ())
{
case virt_directory:
case virt_rootdir:
if ((flags & O_ACCMODE) != O_RDONLY)
{
set_errno (EISDIR);
res = 0;
goto out;
}
nohandle (true);
res = 1;
goto out;
default:
break;
}
if ((flags & O_ACCMODE) == O_RDONLY)
access = GENERIC_READ;
else if ((flags & O_ACCMODE) == O_WRONLY)
access = GENERIC_WRITE | READ_CONTROL | FILE_READ_ATTRIBUTES;
if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
set_errno (EINVAL);
else
access = GENERIC_READ | GENERIC_WRITE;
if (flags & O_SYNC)
options |= FILE_WRITE_THROUGH;
if (flags & O_DIRECT)
options |= FILE_NO_INTERMEDIATE_BUFFERING;
if (!(flags & O_NONBLOCK))
{
access |= SYNCHRONIZE;
options |= FILE_SYNCHRONOUS_IO_NONALERT;
switch (exists ())
{
case virt_directory:
case virt_rootdir:
if ((flags & O_ACCMODE) != O_RDONLY)
set_errno (EISDIR);
else
{
nohandle (true);
res = 1;
}
break;
case virt_none:
set_errno (ENOENT);
break;
default:
res = fhandler_base::open (flags, mode);
break;
}
}
status = NtOpenFile (&h, access, &attr, &io, FILE_SHARE_VALID_FLAGS, options);
if (!NT_SUCCESS (status))
{
__seterrno_from_nt_status (status);
res = 0;
goto out;
}
set_io_handle (h);
set_open_status ();
res = 1;
out:
syscall_printf ("%d = fhandler_procsys::open (%p, %d)", res, flags, mode);
return res;
}