1 /*-
2 * Copyright (c) 2017 M. Warner Losh <[email protected]>
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26 #include <sys/cdefs.h>
27 #include "namespace.h"
28 #include <sys/param.h>
29 #include "compat-ino64.h"
30 #include <sys/errno.h>
31 #include <sys/syscall.h>
32 #include <stdlib.h>
33 #include <unistd.h>
34
35 #include "libc_private.h"
36
37 int
getfsstat(struct statfs * buf,long bufsize,int flags)38 getfsstat(struct statfs *buf, long bufsize, int flags)
39 {
40 struct freebsd11_statfs *statfs11 = NULL;
41 ssize_t len = 0;
42 int rv, i;
43
44 if (__getosreldate() >= INO64_FIRST)
45 return (__sys_getfsstat(buf, bufsize, flags));
46 if (buf != NULL) {
47 len = sizeof(struct freebsd11_statfs) * /* Round down on purpose to avoid */
48 (bufsize / sizeof(struct statfs)); /* overflow on translation. */
49 statfs11 = malloc(len);
50 if (statfs11 == NULL) {
51 errno = ENOMEM;
52 return (-1);
53 }
54 }
55 rv = syscall(SYS_freebsd11_getfsstat, statfs11, len, flags);
56 if (rv != -1 && buf != NULL) {
57 for (i = 0; i < rv; i++)
58 __statfs11_to_statfs(&statfs11[i], &buf[i]);
59 }
60 free(statfs11);
61 return (rv);
62 }
63