projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 47b33891 | 1 | /* Return information about the filesystem on which FD resides. |
| b168057a | 2 | Copyright (C) 1996-2015 Free Software Foundation, Inc. |
| 47b33891 RM |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 47b33891 RM |
9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| 47b33891 | 14 | |
| 41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
| 59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| 47b33891 RM |
18 | |
| 19 | #include <errno.h> | |
| 53308042 | 20 | #include <string.h> |
| 47b33891 RM |
21 | #include <sys/statfs.h> |
| 22 | #include <stddef.h> | |
| 51d1ca00 | 23 | #include <sysdep.h> |
| f8de5057 | 24 | #include <kernel-features.h> |
| 51d1ca00 UD |
25 | |
| 26 | /* Defined in statfs64.c. */ | |
| 27 | extern int __no_statfs64 attribute_hidden; | |
| 47b33891 RM |
28 | |
| 29 | /* Return information about the filesystem on which FD resides. */ | |
| 30 | int | |
| bb8e0116 | 31 | __fstatfs64 (int fd, struct statfs64 *buf) |
| 47b33891 | 32 | { |
| 51d1ca00 UD |
33 | #ifdef __NR_fstatfs64 |
| 34 | # if __ASSUME_STATFS64 == 0 | |
| 35 | if (! __no_statfs64) | |
| 36 | # endif | |
| 37 | { | |
| 51d1ca00 | 38 | # if __ASSUME_STATFS64 == 0 |
| 0c5b8b59 L |
39 | INTERNAL_SYSCALL_DECL (err); |
| 40 | int result = INTERNAL_SYSCALL (fstatfs64, err, 3, fd, | |
| 41 | sizeof (*buf), buf); | |
| 42 | if (!__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err)) | |
| 43 | || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS) | |
| 51d1ca00 | 44 | return result; |
| 0c5b8b59 L |
45 | # else |
| 46 | return INLINE_SYSCALL_RETURN (fstatfs64, 3, int, fd, | |
| 47 | sizeof (*buf), buf); | |
| 48 | # endif | |
| 51d1ca00 UD |
49 | |
| 50 | # if __ASSUME_STATFS64 == 0 | |
| 51 | __no_statfs64 = 1; | |
| 52 | # endif | |
| 53 | } | |
| 54 | #endif | |
| 55 | ||
| 56 | #if __ASSUME_STATFS64 == 0 | |
| 47b33891 RM |
57 | struct statfs buf32; |
| 58 | ||
| 59 | if (__fstatfs (fd, &buf32) < 0) | |
| 60 | return -1; | |
| 61 | ||
| 62 | buf->f_type = buf32.f_type; | |
| 63 | buf->f_bsize = buf32.f_bsize; | |
| 64 | buf->f_blocks = buf32.f_blocks; | |
| 65 | buf->f_bfree = buf32.f_bfree; | |
| 66 | buf->f_bavail = buf32.f_bavail; | |
| 67 | buf->f_files = buf32.f_files; | |
| 68 | buf->f_ffree = buf32.f_ffree; | |
| 69 | buf->f_fsid = buf32.f_fsid; | |
| 70 | buf->f_namelen = buf32.f_namelen; | |
| 51d1ca00 | 71 | buf->f_frsize = buf32.f_frsize; |
| 47b33891 RM |
72 | memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare)); |
| 73 | ||
| 74 | return 0; | |
| 51d1ca00 | 75 | #endif |
| 47b33891 | 76 | } |
| bb8e0116 | 77 | weak_alias (__fstatfs64, fstatfs64) |