1 /* $Id: bsd-statvfs.c,v 1.2 2014/01/17 07:10:59 dtucker Exp $ */
2
3 /*
4 * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include "includes.h"
20
21 #if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS)
22
23 #include <sys/param.h>
24 #ifdef HAVE_SYS_MOUNT_H
25 # include <sys/mount.h>
26 #endif
27
28 #if defined(ANDROID)
29 #include <sys/vfs.h>
30 #include <string.h>
31 #define MNAMELEN PATH_MAX
32 #endif
33
34 #include <errno.h>
35
36 static void
copy_statfs_to_statvfs(struct statvfs * to,struct statfs * from)37 copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from)
38 {
39 to->f_bsize = from->f_bsize;
40 to->f_frsize = from->f_bsize; /* no exact equivalent */
41 to->f_blocks = from->f_blocks;
42 to->f_bfree = from->f_bfree;
43 to->f_bavail = from->f_bavail;
44 to->f_files = from->f_files;
45 to->f_ffree = from->f_ffree;
46 to->f_favail = from->f_ffree; /* no exact equivalent */
47 to->f_fsid = 0; /* XXX fix me */
48 #if GCE_PLATFORM_SDK_VERSION >= 19
49 to->f_flag = from->f_flags;
50 #else
51 to->f_flag = from->f_spare[0];
52 #endif
53 to->f_namemax = MNAMELEN;
54 }
55
56 # ifndef HAVE_STATVFS
statvfs(const char * path,struct statvfs * buf)57 int statvfs(const char *path, struct statvfs *buf)
58 {
59 # ifdef HAVE_STATFS
60 struct statfs fs;
61
62 memset(&fs, 0, sizeof(fs));
63 if (statfs(path, &fs) == -1)
64 return -1;
65 copy_statfs_to_statvfs(buf, &fs);
66 return 0;
67 # else
68 errno = ENOSYS;
69 return -1;
70 # endif
71 }
72 # endif
73
74 # ifndef HAVE_FSTATVFS
fstatvfs(int fd,struct statvfs * buf)75 int fstatvfs(int fd, struct statvfs *buf)
76 {
77 # ifdef HAVE_FSTATFS
78 struct statfs fs;
79
80 memset(&fs, 0, sizeof(fs));
81 if (fstatfs(fd, &fs) == -1)
82 return -1;
83 copy_statfs_to_statvfs(buf, &fs);
84 return 0;
85 # else
86 errno = ENOSYS;
87 return -1;
88 # endif
89 }
90 # endif
91
92 #endif
93