diff options
Diffstat (limited to 'source3/lib/fsusage.c')
| -rw-r--r-- | source3/lib/fsusage.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/source3/lib/fsusage.c b/source3/lib/fsusage.c deleted file mode 100644 index 66ffb9f442..0000000000 --- a/source3/lib/fsusage.c +++ /dev/null @@ -1,157 +0,0 @@ -/* - Unix SMB/CIFS implementation. - functions to calculate the free disk space - Copyright (C) Andrew Tridgell 1998-2000 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include "includes.h" - - -/* Return the number of TOSIZE-byte blocks used by - BLOCKS FROMSIZE-byte blocks, rounding away from zero. -*/ -static SMB_BIG_UINT adjust_blocks(SMB_BIG_UINT blocks, SMB_BIG_UINT fromsize, SMB_BIG_UINT tosize) -{ - if (fromsize == tosize) { /* e.g., from 512 to 512 */ - return blocks; - } else if (fromsize > tosize) { /* e.g., from 2048 to 512 */ - return blocks * (fromsize / tosize); - } else { /* e.g., from 256 to 512 */ - /* Protect against broken filesystems... */ - if (fromsize == 0) { - fromsize = tosize; - } - return (blocks + 1) / (tosize / fromsize); - } -} - -/* this does all of the system specific guff to get the free disk space. - It is derived from code in the GNU fileutils package, but has been - considerably mangled for use here - - results are returned in *dfree and *dsize, in 512 byte units -*/ -int sys_fsusage(const char *path, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize) -{ -#ifdef STAT_STATFS3_OSF1 -#define CONVERT_BLOCKS(B) adjust_blocks ((SMB_BIG_UINT)(B), (SMB_BIG_UINT)fsd.f_fsize, (SMB_BIG_UINT)512) - struct statfs fsd; - - if (statfs (path, &fsd, sizeof (struct statfs)) != 0) - return -1; -#endif /* STAT_STATFS3_OSF1 */ - -#ifdef STAT_STATFS2_FS_DATA /* Ultrix */ -#define CONVERT_BLOCKS(B) adjust_blocks ((SMB_BIG_UINT)(B), (SMB_BIG_UINT)1024, (SMB_BIG_UINT)512) - struct fs_data fsd; - - if (statfs (path, &fsd) != 1) - return -1; - - (*dsize) = CONVERT_BLOCKS (fsd.fd_req.btot); - (*dfree) = CONVERT_BLOCKS (fsd.fd_req.bfreen); -#endif /* STAT_STATFS2_FS_DATA */ - -#ifdef STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX */ -#define CONVERT_BLOCKS(B) adjust_blocks ((SMB_BIG_UINT)(B), (SMB_BIG_UINT)fsd.f_bsize, (SMB_BIG_UINT)512) - struct statfs fsd; - - if (statfs (path, &fsd) < 0) - return -1; - -#ifdef STATFS_TRUNCATES_BLOCK_COUNTS - /* In SunOS 4.1.2, 4.1.3, and 4.1.3_U1, the block counts in the - struct statfs are truncated to 2GB. These conditions detect that - truncation, presumably without botching the 4.1.1 case, in which - the values are not truncated. The correct counts are stored in - undocumented spare fields. */ - if (fsd.f_blocks == 0x1fffff && fsd.f_spare[0] > 0) { - fsd.f_blocks = fsd.f_spare[0]; - fsd.f_bfree = fsd.f_spare[1]; - fsd.f_bavail = fsd.f_spare[2]; - } -#endif /* STATFS_TRUNCATES_BLOCK_COUNTS */ -#endif /* STAT_STATFS2_BSIZE */ - - -#ifdef STAT_STATFS2_FSIZE /* 4.4BSD */ -#define CONVERT_BLOCKS(B) adjust_blocks ((SMB_BIG_UINT)(B), (SMB_BIG_UINT)fsd.f_fsize, (SMB_BIG_UINT)512) - - struct statfs fsd; - - if (statfs (path, &fsd) < 0) - return -1; -#endif /* STAT_STATFS2_FSIZE */ - -#ifdef STAT_STATFS4 /* SVR3, Dynix, Irix, AIX */ -# if _AIX || defined(_CRAY) -# define CONVERT_BLOCKS(B) adjust_blocks ((SMB_BIG_UINT)(B), (SMB_BIG_UINT)fsd.f_bsize, (SMB_BIG_UINT)512) -# ifdef _CRAY -# define f_bavail f_bfree -# endif -# else -# define CONVERT_BLOCKS(B) ((SMB_BIG_UINT)B) -# ifndef _SEQUENT_ /* _SEQUENT_ is DYNIX/ptx */ -# ifndef DOLPHIN /* DOLPHIN 3.8.alfa/7.18 has f_bavail */ -# define f_bavail f_bfree -# endif -# endif -# endif - - struct statfs fsd; - - if (statfs (path, &fsd, sizeof fsd, 0) < 0) - return -1; - /* Empirically, the block counts on most SVR3 and SVR3-derived - systems seem to always be in terms of 512-byte blocks, - no matter what value f_bsize has. */ - -#endif /* STAT_STATFS4 */ - -#if defined(STAT_STATVFS) || defined(STAT_STATVFS64) /* SVR4 */ -#if defined HAVE_FRSIZE -# define CONVERT_BLOCKS(B) \ - adjust_blocks ((SMB_BIG_UINT)(B), fsd.f_frsize ? (SMB_BIG_UINT)fsd.f_frsize : (SMB_BIG_UINT)fsd.f_bsize, (SMB_BIG_UINT)512) -#else -# define CONVERT_BLOCKS(B) \ - adjust_blocks ((SMB_BIG_UINT)(B), (SMB_BIG_UINT)fsd.f_bsize, (SMB_BIG_UINT)512) -#endif - -#ifdef STAT_STATVFS64 - struct statvfs64 fsd; - if (statvfs64(path, &fsd) < 0) return -1; -#else - struct statvfs fsd; - if (statvfs(path, &fsd) < 0) return -1; -#endif - - /* f_frsize isn't guaranteed to be supported. */ - -#endif /* STAT_STATVFS */ - -#ifndef CONVERT_BLOCKS - /* we don't have any dfree code! */ - return -1; -#else -#if !defined(STAT_STATFS2_FS_DATA) - /* !Ultrix */ - (*dsize) = CONVERT_BLOCKS (fsd.f_blocks); - (*dfree) = CONVERT_BLOCKS (fsd.f_bavail); -#endif /* not STAT_STATFS2_FS_DATA */ -#endif - - return 0; -} |