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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
-#if defined (CONFIG_BROKETS)
-/* We use <config.h> instead of "config.h" so that a compilation
- using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
- (which it would do because it found this file in $srcdir). */
#include <config.h>
-#else
-#include "config.h"
-#endif
#endif
#include <sys/types.h>
+#include <sys/stat.h>
#include "fsusage.h"
int statfs ();
-#if defined (STAT_STATFS3_OSF1) /* DEC Alpha running OSF/1 */
-# include <sys/mount.h>
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
#endif
-#if defined(STAT_STATFS2_BSIZE) && !defined(_IBMR2) /* 4.3BSD, SunOS 4, HP-UX, AIX PS/2. */
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+
+#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
-#ifdef STAT_STATFS2_FSIZE /* 4.4BSD. */
-#include <sys/mount.h>
+#ifdef HAVE_SYS_FS_S5PARAM_H /* Fujitsu UXP/V */
+#include <sys/fs/s5param.h>
#endif
-#ifdef STAT_STATFS2_FS_DATA /* Ultrix. */
-#include <sys/param.h>
-#include <sys/mount.h>
+#if defined(HAVE_SYS_FILSYS_H) && !defined(_CRAY)
+#include <sys/filsys.h> /* SVR2. */
#endif
-#ifdef STAT_READ /* SVR2. */
-#include <sys/param.h>
-#include <sys/filsys.h>
+#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
-#if defined(STAT_STATFS4) || (defined(_AIX) && defined(_IBMR2)) /* SVR3, Dynix, Irix, AIX RS6000. */
+#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
-#if defined(_AIX) && defined(_I386) /* AIX PS/2. */
-#include <sys/stat.h>
+#ifdef HAVE_DUSTAT_H /* AIX PS/2. */
#include <sys/dustat.h>
#endif
-#ifdef STAT_STATVFS /* SVR4. */
+#ifdef HAVE_SYS_STATVFS_H /* SVR4. */
#include <sys/statvfs.h>
int statvfs ();
#endif
-/* Set B_NEW to the number of TOSIZE-byte blocks used by B FROMSIZE-byte
- blocks, rounding away from zero. TOSIZE must be positive. Return -1
- from invoking function if FROMSIZE is not positive. */
-
-#define ADJUST_BLOCKS(b_new, b, fromsize, tosize) \
- do \
- { \
- if ((tosize) <= 0) \
- abort (); \
- if ((fromsize) <= 0) \
- return -1; \
- \
- if ((fromsize) == (tosize)) /* E.g., from 512 to 512. */ \
- (b_new) = (b); \
- else if ((fromsize) > (tosize)) /* E.g., from 2048 to 512. */ \
- (b_new) = (b) * ((fromsize) / (tosize)); \
- else /* E.g., from 256 to 512. */ \
- (b_new) = ((b) + ((b) < 0 ? -1 : 1)) / ((tosize) / (fromsize)); \
- } \
- while (0)
+int safe_read ();
+
+/* 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);
+}
/* Fill in the fields of FSP with information about space usage for
the filesystem on which PATH resides.
int
get_fs_usage (path, disk, fsp)
- char *path, *disk;
+ const char *path;
+ const char *disk;
struct fs_usage *fsp;
{
#if defined (STAT_STATFS3_OSF1)
if (statfs (path, &fsd, sizeof (struct statfs)) != 0)
return -1;
-#define CONVERT_BLOCKS(bnew, b) ADJUST_BLOCKS ((bnew), (b), fsd.f_fsize, 512)
+#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_fsize, 512)
#endif /* STAT_STATFS3_OSF1 */
#ifdef STAT_STATFS2_FS_DATA /* Ultrix. */
if (statfs (path, &fsd) != 1)
return -1;
-#define CONVERT_BLOCKS(bnew, b) ADJUST_BLOCKS ((bnew), (b), 1024, 512)
- CONVERT_BLOCKS (fsp->fsu_blocks, fsd.fd_req.btot);
- CONVERT_BLOCKS (fsp->fsu_bfree, fsd.fd_req.bfree);
- CONVERT_BLOCKS (fsp->fsu_bavail, fsd.fd_req.bfreen);
+#define CONVERT_BLOCKS(b) adjust_blocks ((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
-#ifdef STAT_READ /* SVR2. */
+#ifdef STAT_READ_FILSYS /* SVR2. */
#ifndef SUPERBOFF
#define SUPERBOFF (SUPERB * 512)
#endif
if (fd < 0)
return -1;
lseek (fd, (long) SUPERBOFF, 0);
- if (read (fd, (char *) &fsd, sizeof fsd) != sizeof fsd)
+ if (safe_read (fd, (char *) &fsd, sizeof fsd) != sizeof fsd)
{
close (fd);
return -1;
}
close (fd);
-#define CONVERT_BLOCKS(bnew, b) \
- ADJUST_BLOCKS ((bnew), (b), (fsd.s_type == Fs2b ? 1024 : 512), 512)
- CONVERT_BLOCKS (fsp->fsu_blocks, fsd.s_fsize);
- CONVERT_BLOCKS (fsp->fsu_bfree, fsd.s_tfree);
- CONVERT_BLOCKS (fsp->fsu_bavail, fsd.s_tfree);
+#define CONVERT_BLOCKS(b) adjust_blocks ((b), (fsd.s_type == Fs2b ? 1024 : 512), 512)
+ fsp->fsu_blocks = CONVERT_BLOCKS (fsd.s_fsize);
+ fsp->fsu_bfree = CONVERT_BLOCKS (fsd.s_tfree);
+ fsp->fsu_bavail = CONVERT_BLOCKS (fsd.s_tfree);
fsp->fsu_files = (fsd.s_isize - 2) * INOPB * (fsd.s_type == Fs2b ? 2 : 1);
fsp->fsu_ffree = fsd.s_tinode;
#endif
if (statfs (path, &fsd) < 0)
return -1;
-#define CONVERT_BLOCKS(bnew, b) ADJUST_BLOCKS ((bnew), (b), fsd.f_bsize, 512)
+
+#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 */
+
+#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_bsize, 512)
#endif
#ifdef STAT_STATFS2_FSIZE /* 4.4BSD. */
if (statfs (path, &fsd) < 0)
return -1;
-#define CONVERT_BLOCKS(bnew, b) ADJUST_BLOCKS ((bnew), (b), fsd.f_fsize, 512)
+#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_fsize, 512)
#endif
-#ifdef STAT_STATFS4 /* SVR3, Dynix, Irix. */
+#ifdef STAT_STATFS4 /* SVR3, Dynix, Irix, AIX. */
struct statfs fsd;
if (statfs (path, &fsd, sizeof fsd, 0) < 0)
/* 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. */
-#define CONVERT_BLOCKS(bnew, b) \
- do \
- { \
- (bnew) = (b); \
- } \
- while (0)
-
-#ifndef _SEQUENT_ /* _SEQUENT_ is DYNIX/ptx. */
-#ifndef DOLPHIN /* DOLPHIN 3.8.alfa/7.18 has f_bavail */
-#define f_bavail f_bfree
-#endif
-#endif
+# if _AIX || defined(_CRAY)
+# define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_bsize, 512)
+# ifdef _CRAY
+# define f_bavail f_bfree
+# endif
+# 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
#ifdef STAT_STATVFS /* SVR4. */
if (statvfs (path, &fsd) < 0)
return -1;
/* f_frsize isn't guaranteed to be supported. */
-#define CONVERT_BLOCKS(bnew, b) \
- ADJUST_BLOCKS ((bnew), (b), fsd.f_frsize ? fsd.f_frsize : fsd.f_bsize, 512)
+#define CONVERT_BLOCKS(b) \
+ adjust_blocks ((b), fsd.f_frsize ? fsd.f_frsize : fsd.f_bsize, 512)
#endif
-#if !defined(STAT_STATFS2_FS_DATA) && !defined(STAT_READ) /* !Ultrix && !SVR2. */
- CONVERT_BLOCKS (fsp->fsu_blocks, fsd.f_blocks);
- CONVERT_BLOCKS (fsp->fsu_bfree, fsd.f_bfree);
- CONVERT_BLOCKS (fsp->fsu_bavail, fsd.f_bavail);
+#if !defined(STAT_STATFS2_FS_DATA) && !defined(STAT_READ_FILSYS) /* !Ultrix && !SVR2. */
+ 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
projects / gnulib.git / blobdiff