diff options
Diffstat (limited to 'gnu/libexec/uucp/libunix/fsusg.c')
-rw-r--r-- | gnu/libexec/uucp/libunix/fsusg.c | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/gnu/libexec/uucp/libunix/fsusg.c b/gnu/libexec/uucp/libunix/fsusg.c deleted file mode 100644 index 9189193..0000000 --- a/gnu/libexec/uucp/libunix/fsusg.c +++ /dev/null @@ -1,332 +0,0 @@ -/* fsusage.c -- return space usage of mounted filesystems - Copyright (C) 1991, 1992 Free Software Foundation, Inc. - - 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 2, 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, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - This file was modified slightly by Ian Lance Taylor, December 1992, - and again July 1995, for use with Taylor UUCP. */ - -#include "uucp.h" -#include "uudefs.h" -#include "sysdep.h" -#include "fsusg.h" - -int statfs (); - -#if HAVE_SYS_PARAM_H -#include <sys/param.h> -#endif - -#if HAVE_SYS_MOUNT_H -#include <sys/mount.h> -#endif - -#if HAVE_SYS_VFS_H -#include <sys/vfs.h> -#endif - -#if HAVE_SYS_FILSYS_H -#include <sys/filsys.h> /* SVR2. */ -#endif - -#if HAVE_FCNTL_H -#include <fcntl.h> -#endif - -#if HAVE_SYS_STATFS_H -#include <sys/statfs.h> -#endif - -#if HAVE_SYS_DUSTAT_H /* AIX PS/2. */ -#include <sys/dustat.h> -#endif - -#if HAVE_SYS_STATVFS_H /* SVR4. */ -#include <sys/statvfs.h> -int statvfs (); -#endif - -#if HAVE_USTAT_H /* SVR2 and others. */ -#include <ustat.h> -#endif - -#if STAT_DISK_SPACE /* QNX. */ -#include <sys/disk.h> -#include <errno.h> -#endif - -#define STAT_NONE 0 - -#if ! STAT_STATFS3_OSF1 -#if ! STAT_STATFS2_FS_DATA -#if ! STAT_STATFS2_BSIZE -#if ! STAT_STATFS2_FSIZE -#if ! STAT_STATFS4 -#if ! STAT_STATVFS -#if ! STAT_DISK_SPACE -#if ! STAT_USTAT -#undef STAT_NONE -#define STAT_NONE 1 -#endif -#endif -#endif -#endif -#endif -#endif -#endif -#endif - -#if ! STAT_NONE - -static long adjust_blocks P((long blocks, int fromsize, int tosize)); - -/* Return the number of TOSIZE-byte blocks used by - BLOCKS FROMSIZE-byte blocks, rounding away from zero. - TOSIZE must be positive. Return -1 if FROMSIZE is not positive. */ - -static long -adjust_blocks (blocks, fromsize, tosize) - long blocks; - int fromsize, tosize; -{ - if (tosize <= 0) - abort (); - if (fromsize <= 0) - return -1; - - 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. */ - return (blocks + (blocks < 0 ? -1 : 1)) / (tosize / fromsize); -} - -#endif - -/* Fill in the fields of FSP with information about space usage for - the filesystem on which PATH resides. - DISK is the device on which PATH is mounted, for space-getting - methods that need to know it. - Return 0 if successful, -1 if not. */ - -int -get_fs_usage (path, disk, fsp) - char *path, *disk; - struct fs_usage *fsp; -{ -#if STAT_NONE - return -1; -#endif - -#if STAT_STATFS3_OSF1 - struct statfs fsd; - - if (statfs (path, &fsd, sizeof (struct statfs)) != 0) - return -1; -#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_fsize, 512) -#endif /* STAT_STATFS3_OSF1 */ - -#if STAT_STATFS2_FS_DATA /* Ultrix. */ - struct fs_data fsd; - - if (statfs (path, &fsd) != 1) - return -1; -#define CONVERT_BLOCKS(b) adjust_blocks ((long) (b), 1024, 512) - fsp->fsu_blocks = CONVERT_BLOCKS (fsd.fd_req.btot); - fsp->fsu_bfree = CONVERT_BLOCKS (fsd.fd_req.bfree); - fsp->fsu_bavail = CONVERT_BLOCKS (fsd.fd_req.bfreen); - fsp->fsu_files = fsd.fd_req.gtot; - fsp->fsu_ffree = fsd.fd_req.gfree; -#endif - -#if STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX. */ - struct statfs fsd; - - if (statfs (path, &fsd) < 0) - return -1; -#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_bsize, 512) -#endif - -#if STAT_STATFS2_FSIZE /* 4.4BSD. */ - struct statfs fsd; - - if (statfs (path, &fsd) < 0) - return -1; -#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_fsize, 512) -#endif - -#if STAT_STATFS4 /* SVR3, Dynix, Irix. */ - 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. */ -# if _AIX -# define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_bsize, 512) -# else -# define CONVERT_BLOCKS(b) (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 -#endif - -#if STAT_STATVFS /* SVR4. */ - struct statvfs fsd; - - if (statvfs (path, &fsd) < 0) - return -1; - /* f_frsize isn't guaranteed to be supported. */ -#define CONVERT_BLOCKS(b) \ - adjust_blocks ((b), fsd.f_frsize ? fsd.f_frsize : fsd.f_bsize, 512) -#endif - -#if STAT_DISK_SPACE /* QNX. */ - int o; - int iret; - long cfree_blocks, ctotal_blocks; - char *zpath; - char *zslash; - - zpath = zbufcpy (path); - while ((o = open (zpath, O_RDONLY, 0)) == -1 - && errno == ENOENT) - { - /* The named file doesn't exist, so we can't open it. Try the - directory containing it. */ - if ((strcmp ("/", zpath) == 0) - || (strcmp (zpath, ".") == 0) - || (strcmp (zpath, "") == 0) - /* QNX peculiarity: "//2" means root on node 2 */ - || ((strncmp (zpath, "//", 2) == 0) - && (strchr (zpath + 2, '/') == NULL))) - { - /* We can't shorten this! */ - break; - } - - /* Shorten the pathname by one component and try again. */ - zslash = strrchr (zpath, '/'); - if (zslash == NULL) - { - /* Try the current directory. We can open directories. */ - zpath[0] = '.'; - zpath[1] = '\0'; - } - else if (zslash == zpath) - { - /* Try the root directory. */ - zpath[0] = '/'; - zpath[1] = '\0'; - } - else - { - /* Chop off last path component. */ - zslash[0] = '\0'; - } - } - if (o == -1) - { - ulog (LOG_ERROR, "get_fs_usage: open (%s) failed: %s", zpath, - strerror (errno)); - ubuffree (zpath); - return -1; - } - ubuffree (zpath); - - iret = disk_space (o, &cfree_blocks, &ctotal_blocks); - (void) close (o); - if (iret == -1) - { - ulog (LOG_ERROR, "get_fs_usage: disk_space failed: %s", - strerror (errno)); - return -1; - } - - fsp->fsu_blocks = ctotal_blocks; - fsp->fsu_bfree = cfree_blocks; - fsp->fsu_bavail = cfree_blocks; - - /* QNX has no limit on the number of inodes. Most inodes are stored - directly in the directory entry. */ - fsp->fsu_files = -1; - fsp->fsu_ffree = -1; -#endif /* STAT_DISK_SPACE */ - -#if STAT_USTAT - struct stat sstat; - struct ustat s; - - if (stat (path, &sstat) < 0 - || ustat (sstat.st_dev, &s) < 0) - return -1; - fsp->fsu_blocks = -1; - fsp->fsu_bfree = s.f_tfree; - fsp->fsu_bavail = s.f_tfree; - fsp->fsu_files = -1; - fsp->fsu_ffree = -1; -#endif - -#if ! STAT_STATFS2_FS_DATA /* ! Ultrix */ -#if ! STAT_DISK_SPACE -#if ! STAT_USTAT -#if ! STAT_NONE - fsp->fsu_blocks = CONVERT_BLOCKS (fsd.f_blocks); - fsp->fsu_bfree = CONVERT_BLOCKS (fsd.f_bfree); - fsp->fsu_bavail = CONVERT_BLOCKS (fsd.f_bavail); - fsp->fsu_files = fsd.f_files; - fsp->fsu_ffree = fsd.f_ffree; -#endif -#endif -#endif -#endif - - return 0; -} - -#ifdef _AIX -#ifdef _I386 -/* AIX PS/2 does not supply statfs. */ - -int -statfs (path, fsb) - char *path; - struct statfs *fsb; -{ - struct stat stats; - struct dustat fsd; - - if (stat (path, &stats)) - return -1; - if (dustat (stats.st_dev, 0, &fsd, sizeof (fsd))) - return -1; - fsb->f_type = 0; - fsb->f_bsize = fsd.du_bsize; - fsb->f_blocks = fsd.du_fsize - fsd.du_isize; - fsb->f_bfree = fsd.du_tfree; - fsb->f_bavail = fsd.du_tfree; - fsb->f_files = (fsd.du_isize - 2) * fsd.du_inopb; - fsb->f_ffree = fsd.du_tinode; - fsb->f_fsid.val[0] = fsd.du_site; - fsb->f_fsid.val[1] = fsd.du_pckno; - return 0; -} -#endif /* _I386 */ -#endif /* _AIX */ |