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-rw-r--r--gnu/libexec/uucp/libunix/fsusg.c120
1 files changed, 69 insertions, 51 deletions
diff --git a/gnu/libexec/uucp/libunix/fsusg.c b/gnu/libexec/uucp/libunix/fsusg.c
index cee1ff0..9189193 100644
--- a/gnu/libexec/uucp/libunix/fsusg.c
+++ b/gnu/libexec/uucp/libunix/fsusg.c
@@ -1,5 +1,5 @@
/* fsusage.c -- return space usage of mounted filesystems
- Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+ 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
@@ -13,74 +13,70 @@
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.
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
This file was modified slightly by Ian Lance Taylor, December 1992,
- for use with Taylor UUCP. */
+ and again July 1995, for use with Taylor UUCP. */
#include "uucp.h"
#include "uudefs.h"
#include "sysdep.h"
#include "fsusg.h"
-#if STAT_STATFS2_BSIZE
-#ifdef __FreeBSD__
+int statfs ();
+
+#if HAVE_SYS_PARAM_H
#include <sys/param.h>
-#include <sys/mount.h>
-#else
-#ifndef _IBMR2 /* 4.3BSD, SunOS 4, HP-UX, AIX PS/2. */
-#include <sys/vfs.h>
-#endif
-#endif
#endif
-#if STAT_STATFS2_FSIZE /* 4.4BSD. */
+#if HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
-#if STAT_STATFS2_FS_DATA /* Ultrix. */
-#include <sys/param.h>
-#include <sys/mount.h>
+#if HAVE_SYS_VFS_H
+#include <sys/vfs.h>
#endif
-#if STAT_USTAT /* SVR2 and others. */
-#include <ustat.h>
+#if HAVE_SYS_FILSYS_H
+#include <sys/filsys.h> /* SVR2. */
#endif
-#if STAT_STATFS4 /* SVR3, Dynix, Irix. */
-#include <sys/statfs.h>
+#if HAVE_FCNTL_H
+#include <fcntl.h>
#endif
-#ifdef _AIX
-#ifdef _IBMR2 /* AIX RS6000. */
+
+#if HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
-#endif
-#if STAT_DUSTAT /* AIX PS/2. */
-#include <sys/stat.h>
+#if HAVE_SYS_DUSTAT_H /* AIX PS/2. */
#include <sys/dustat.h>
#endif
-#if STAT_STATVFS /* SVR4. */
+#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 <fcntl.h>
#include <errno.h>
#endif
#define STAT_NONE 0
-#if ! STAT_STATVFS
+#if ! STAT_STATFS3_OSF1
+#if ! STAT_STATFS2_FS_DATA
#if ! STAT_STATFS2_BSIZE
#if ! STAT_STATFS2_FSIZE
-#if ! STAT_STATFS2_FS_DATA
#if ! STAT_STATFS4
-#if ! STAT_DUSTAT
-#if ! STAT_USTAT
+#if ! STAT_STATVFS
#if ! STAT_DISK_SPACE
+#if ! STAT_USTAT
#undef STAT_NONE
#define STAT_NONE 1
#endif
@@ -97,19 +93,25 @@
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 up. */
+ 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 + 1) / (tosize / fromsize);
+ return (blocks + (blocks < 0 ? -1 : 1)) / (tosize / fromsize);
}
#endif
@@ -129,25 +131,33 @@ get_fs_usage (path, disk, fsp)
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);
+#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 || STAT_DUSTAT /* 4.3BSD, SunOS 4, HP-UX, AIX. */
+#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)
+#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_bsize, 512)
#endif
#if STAT_STATFS2_FSIZE /* 4.4BSD. */
@@ -155,7 +165,7 @@ get_fs_usage (path, disk, fsp)
if (statfs (path, &fsd) < 0)
return -1;
-#define convert_blocks(b) adjust_blocks ((b), fsd.f_fsize, 512)
+#define CONVERT_BLOCKS(b) adjust_blocks ((b), fsd.f_fsize, 512)
#endif
#if STAT_STATFS4 /* SVR3, Dynix, Irix. */
@@ -166,10 +176,16 @@ get_fs_usage (path, disk, fsp)
/* 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(b) (b)
-#ifndef _SEQUENT_ /* _SEQUENT_ is DYNIX/ptx. */
-#define f_bavail f_bfree
-#endif
+# 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. */
@@ -178,7 +194,7 @@ get_fs_usage (path, disk, fsp)
if (statvfs (path, &fsd) < 0)
return -1;
/* f_frsize isn't guaranteed to be supported. */
-#define convert_blocks(b) \
+#define CONVERT_BLOCKS(b) \
adjust_blocks ((b), fsd.f_frsize ? fsd.f_frsize : fsd.f_bsize, 512)
#endif
@@ -188,7 +204,7 @@ get_fs_usage (path, disk, fsp)
long cfree_blocks, ctotal_blocks;
char *zpath;
char *zslash;
-
+
zpath = zbufcpy (path);
while ((o = open (zpath, O_RDONLY, 0)) == -1
&& errno == ENOENT)
@@ -247,7 +263,7 @@ get_fs_usage (path, disk, fsp)
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;
@@ -272,9 +288,9 @@ get_fs_usage (path, disk, fsp)
#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_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
@@ -285,7 +301,8 @@ get_fs_usage (path, disk, fsp)
return 0;
}
-#if STAT_DUSTAT
+#ifdef _AIX
+#ifdef _I386
/* AIX PS/2 does not supply statfs. */
int
@@ -311,4 +328,5 @@ statfs (path, fsb)
fsb->f_fsid.val[1] = fsd.du_pckno;
return 0;
}
-#endif /* STAT_DUSTAT */
+#endif /* _I386 */
+#endif /* _AIX */
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