1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
27 /* All Rights Reserved */
28
29 /*
30 * Portions of this source code were derived from Berkeley 4.3 BSD
31 * under license from the Regents of the University of California.
32 */
33
34 #include <sys/param.h>
35 #include <sys/isa_defs.h>
36 #include <sys/types.h>
37 #include <sys/sysmacros.h>
38 #include <sys/cred.h>
39 #include <sys/systm.h>
40 #include <sys/errno.h>
41 #include <sys/vnode.h>
42 #include <sys/file.h>
43 #include <sys/mode.h>
44 #include <sys/debug.h>
45
46 /*
47 * Flush output pending for file.
48 */
49 int
fdsync(int fd,int flag)50 fdsync(int fd, int flag)
51 {
52 file_t *fp;
53 register int error;
54 int syncflag;
55
56 if ((fp = getf(fd)) != NULL) {
57 /*
58 * This flag will determine the file sync
59 * or data sync.
60 * FSYNC : file sync
61 * FDSYNC : data sync
62 */
63 syncflag = flag & (FSYNC|FDSYNC);
64
65 if (error = VOP_FSYNC(fp->f_vnode, syncflag, fp->f_cred, NULL))
66 (void) set_errno(error);
67 releasef(fd);
68 } else
69 error = set_errno(EBADF);
70 return (error);
71 }
72