]>
Commit | Line | Data |
---|---|---|
c84142e8 UD |
1 | /* Copyright (C) 1993, 1994, 1995, 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 RM |
18 | |
19 | #include <errno.h> | |
20 | #include <unistd.h> | |
21 | #include <hurd.h> | |
22 | #include <hurd/fd.h> | |
23 | #include <string.h> | |
24 | ||
25 | error_t | |
26 | _hurd_fd_read (struct hurd_fd *fd, void *buf, size_t *nbytes) | |
27 | { | |
28 | error_t err; | |
29 | char *data; | |
30 | mach_msg_type_number_t nread; | |
31 | ||
32 | error_t readfd (io_t port) | |
33 | { | |
34 | return __io_read (port, &data, &nread, -1, *nbytes); | |
35 | } | |
36 | ||
37 | data = buf; | |
38 | if (err = HURD_FD_PORT_USE (fd, _hurd_ctty_input (port, ctty, readfd))) | |
39 | return err; | |
40 | ||
41 | if (data != buf) | |
42 | { | |
43 | memcpy (buf, data, nread); | |
44 | __vm_deallocate (__mach_task_self (), (vm_address_t) data, nread); | |
45 | } | |
46 | ||
47 | *nbytes = nread; | |
48 | return 0; | |
49 | } |