| 1 | /* Get filesystem statistics. Linux version. |
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| 2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library. If not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <sys/statfs.h> |
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| 20 | #include <time.h> |
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| 21 | #include <sysdep.h> |
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| 22 | #include <kernel_stat.h> |
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| 23 | |
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| 24 | #if !STATFS_IS_STATFS64 |
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| 25 | |
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| 26 | /* Return information about the filesystem on which FILE resides. */ |
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| 27 | int |
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| 28 | __fstatfs (int fd, struct statfs *buf) |
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| 29 | { |
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| 30 | struct statfs64 buf64; |
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| 31 | int rc = INLINE_SYSCALL_CALL (fstatfs64, fd, sizeof (buf64), &buf64); |
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| 32 | if (rc != 0) |
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| 33 | return rc; |
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| 34 | |
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| 35 | buf->f_type = buf64.f_type; |
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| 36 | buf->f_bsize = buf64.f_bsize; |
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| 37 | buf->f_blocks = buf64.f_blocks; |
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| 38 | buf->f_bfree = buf64.f_bfree; |
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| 39 | buf->f_bavail = buf64.f_bavail; |
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| 40 | buf->f_files = buf64.f_files; |
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| 41 | buf->f_ffree = buf64.f_ffree; |
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| 42 | buf->f_fsid = buf64.f_fsid; |
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| 43 | buf->f_namelen = buf64.f_namelen; |
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| 44 | buf->f_frsize = buf64.f_frsize; |
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| 45 | buf->f_flags = buf64.f_flags; |
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| 46 | memcpy (buf->f_spare, buf64.f_spare, sizeof (buf64.f_spare)); |
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| 47 | |
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| 48 | if ((fsblkcnt_t) buf64.f_blocks != buf64.f_blocks |
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| 49 | || (fsblkcnt_t) buf64.f_bfree != buf64.f_bfree |
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| 50 | || (fsblkcnt_t) buf64.f_bavail != buf64.f_bavail |
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| 51 | || (fsblkcnt_t) buf64.f_files != buf64.f_files |
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| 52 | || (fsblkcnt_t) buf64.f_ffree != buf64.f_ffree) |
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| 53 | { |
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| 54 | __set_errno (EOVERFLOW); |
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| 55 | return -1; |
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| 56 | } |
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| 57 | |
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| 58 | return 0; |
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| 59 | } |
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| 60 | libc_hidden_def (__fstatfs) |
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| 61 | weak_alias (__fstatfs, fstatfs) |
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| 62 | #endif |
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| 63 | |
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