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a53bad16 | 1 | /* Copyright (C) 1991, 92, 93, 94, 95, 97, 98 Free Software Foundation, Inc. |
ebbad4cc | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
ebbad4cc UD |
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. | |
28f540f4 | 8 | |
ebbad4cc UD |
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. | |
28f540f4 | 13 | |
ebbad4cc UD |
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 | 18 | |
28f540f4 | 19 | #include <errno.h> |
28f540f4 | 20 | #include <fcntl.h> |
a53bad16 UD |
21 | #include <sys/types.h> |
22 | #include <unistd.h> | |
23 | #include <hurd.h> | |
28f540f4 RM |
24 | |
25 | /* Truncate FILE_NAME to LENGTH bytes. */ | |
26 | int | |
ebbad4cc | 27 | truncate (file_name, length) |
a53bad16 | 28 | const char *file_name; |
ebbad4cc | 29 | off_t length; |
28f540f4 RM |
30 | { |
31 | error_t err; | |
32 | file_t file = __file_name_lookup (file_name, O_WRITE, 0); | |
33 | ||
34 | if (file == MACH_PORT_NULL) | |
35 | return -1; | |
36 | ||
e537c55e | 37 | err = __file_set_size (file, length); |
28f540f4 RM |
38 | __mach_port_deallocate (__mach_task_self (), file); |
39 | ||
40 | if (err) | |
41 | return __hurd_fail (err); | |
42 | return 0; | |
43 | } |