1 /*
2 * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
14 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include "includes.h"
18
19 #if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS)
20
21 #include <sys/param.h>
22 #ifdef HAVE_SYS_MOUNT_H
23 # include <sys/mount.h>
24 #endif
25
26 #if defined(ANDROID)
27 #include <sys/param.h>
28 #define MNAMELEN PATH_MAX
29 #endif
30
31 #include <errno.h>
32
33 #ifndef MNAMELEN
34 # define MNAMELEN 32
35 #endif
36
37 #ifdef HAVE_STRUCT_STATFS_F_FILES
38 # define HAVE_STRUCT_STATFS
39 #endif
40
41 #ifdef HAVE_STRUCT_STATFS
42 static void
copy_statfs_to_statvfs(struct statvfs * to,struct statfs * from)43 copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from)
44 {
45 to->f_bsize = from->f_bsize;
46 to->f_frsize = from->f_bsize; /* no exact equivalent */
47 to->f_blocks = from->f_blocks;
48 to->f_bfree = from->f_bfree;
49 to->f_bavail = from->f_bavail;
50 to->f_files = from->f_files;
51 to->f_ffree = from->f_ffree;
52 to->f_favail = from->f_ffree; /* no exact equivalent */
53 to->f_fsid = 0; /* XXX fix me */
54 #ifdef HAVE_STRUCT_STATFS_F_FLAGS
55 to->f_flag = from->f_flags;
56 #else
57 to->f_flag = 0;
58 #endif
59 to->f_namemax = MNAMELEN;
60 }
61 #endif
62
63 # ifndef HAVE_STATVFS
statvfs(const char * path,struct statvfs * buf)64 int statvfs(const char *path, struct statvfs *buf)
65 {
66 # if defined(HAVE_STATFS) && defined(HAVE_STRUCT_STATFS)
67 struct statfs fs;
68
69 memset(&fs, 0, sizeof(fs));
70 if (statfs(path, &fs) == -1)
71 return -1;
72 copy_statfs_to_statvfs(buf, &fs);
73 return 0;
74 # else
75 errno = ENOSYS;
76 return -1;
77 # endif
78 }
79 # endif
80
81 # ifndef HAVE_FSTATVFS
fstatvfs(int fd,struct statvfs * buf)82 int fstatvfs(int fd, struct statvfs *buf)
83 {
84 # if defined(HAVE_FSTATFS) && defined(HAVE_STRUCT_STATFS)
85 struct statfs fs;
86
87 memset(&fs, 0, sizeof(fs));
88 if (fstatfs(fd, &fs) == -1)
89 return -1;
90 copy_statfs_to_statvfs(buf, &fs);
91 return 0;
92 # else
93 errno = ENOSYS;
94 return -1;
95 # endif
96 }
97 # endif
98
99 #endif
100