X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffsusage.c;h=10db467d28c50515f3a5030609a5d5e8d3ce823b;hb=ad8f11251eeef41965bd7a358516325238117971;hp=0bb62244755bd8fab46d0b01f8e199dc216e2511;hpb=79c0a43808d9ca85acd04600149fc1a9b75bd1b9;p=gnulib.git
diff --git a/lib/fsusage.c b/lib/fsusage.c
index 0bb622447..10db467d2 100644
--- a/lib/fsusage.c
+++ b/lib/fsusage.c
@@ -1,12 +1,12 @@
/* fsusage.c -- return space usage of mounted file systems
- Copyright (C) 1991, 1992, 1996, 1998, 1999, 2002, 2003, 2004, 2005, 2006
- Free Software Foundation, Inc.
+ Copyright (C) 1991-1992, 1996, 1998-1999, 2002-2006, 2009-2010 Free Software
+ Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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.
+ 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
@@ -14,19 +14,16 @@
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see . */
-#ifdef HAVE_CONFIG_H
-# include
-#endif
+#include
#include "fsusage.h"
#include
#include
-#if STAT_STATVFS /* POSIX 1003.1-2001 (and later) with XSI */
+#if STAT_STATVFS /* POSIX 1003.1-2001 (and later) with XSI */
# include
#else
/* Don't include backward-compatibility files unless they're needed.
@@ -43,24 +40,25 @@
# if HAVE_SYS_VFS_H
# include
# endif
-# if HAVE_SYS_FS_S5PARAM_H /* Fujitsu UXP/V */
+# if HAVE_SYS_FS_S5PARAM_H /* Fujitsu UXP/V */
# include
# endif
# if defined HAVE_SYS_FILSYS_H && !defined _CRAY
-# include /* SVR2 */
+# include /* SVR2 */
# endif
# if HAVE_SYS_STATFS_H
# include
# endif
-# if HAVE_DUSTAT_H /* AIX PS/2 */
+# if HAVE_DUSTAT_H /* AIX PS/2 */
# include
# endif
# include "full-read.h"
#endif
-#ifndef UINTMAX_MAX
-# define UINTMAX_MAX ((uintmax_t) -1)
-#endif
+/* The results of open() in this file are not used with fchdir,
+ therefore save some unnecessary work in fchdir.c. */
+#undef open
+#undef close
/* Many space usage primitives use all 1 bits to denote a value that is
not applicable or unknown. Propagate this information by returning
@@ -69,13 +67,13 @@
#define PROPAGATE_ALL_ONES(x) \
((sizeof (x) < sizeof (uintmax_t) \
&& (~ (x) == (sizeof (x) < sizeof (int) \
- ? - (1 << (sizeof (x) * CHAR_BIT)) \
- : 0))) \
- ? UINTMAX_MAX : (x))
+ ? - (1 << (sizeof (x) * CHAR_BIT)) \
+ : 0))) \
+ ? UINTMAX_MAX : (uintmax_t) (x))
/* Extract the top bit of X as an uintmax_t value. */
#define EXTRACT_TOP_BIT(x) ((x) \
- & ((uintmax_t) 1 << (sizeof (x) * CHAR_BIT - 1)))
+ & ((uintmax_t) 1 << (sizeof (x) * CHAR_BIT - 1)))
/* If a value is negative, many space usage primitives store it into an
integer variable by assignment, even if the variable's type is unsigned.
@@ -96,7 +94,7 @@
int
get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
{
-#if defined STAT_STATVFS /* POSIX */
+#if defined STAT_STATVFS /* POSIX */
struct statvfs fsd;
@@ -105,10 +103,10 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
/* f_frsize isn't guaranteed to be supported. */
fsp->fsu_blocksize = (fsd.f_frsize
- ? PROPAGATE_ALL_ONES (fsd.f_frsize)
- : PROPAGATE_ALL_ONES (fsd.f_bsize));
+ ? PROPAGATE_ALL_ONES (fsd.f_frsize)
+ : PROPAGATE_ALL_ONES (fsd.f_bsize));
-#elif defined STAT_STATFS2_FS_DATA /* Ultrix */
+#elif defined STAT_STATFS2_FS_DATA /* Ultrix */
struct fs_data fsd;
@@ -123,7 +121,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
fsp->fsu_files = PROPAGATE_ALL_ONES (fsd.fd_req.gtot);
fsp->fsu_ffree = PROPAGATE_ALL_ONES (fsd.fd_req.gfree);
-#elif defined STAT_READ_FILSYS /* SVR2 */
+#elif defined STAT_READ_FILSYS /* SVR2 */
# ifndef SUPERBOFF
# define SUPERBOFF (SUPERB * 512)
# endif
@@ -154,8 +152,8 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
fsp->fsu_bavail = PROPAGATE_TOP_BIT (fsd.s_tfree);
fsp->fsu_bavail_top_bit_set = EXTRACT_TOP_BIT (fsd.s_tfree) != 0;
fsp->fsu_files = (fsd.s_isize == -1
- ? UINTMAX_MAX
- : (fsd.s_isize - 2) * INOPB * (fsd.s_type == Fs2b ? 2 : 1));
+ ? UINTMAX_MAX
+ : (fsd.s_isize - 2) * INOPB * (fsd.s_type == Fs2b ? 2 : 1));
fsp->fsu_ffree = PROPAGATE_ALL_ONES (fsd.s_tinode);
#elif defined STAT_STATFS3_OSF1
@@ -167,7 +165,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_fsize);
-#elif defined STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX */
+#elif defined STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX */
struct statfs fsd;
@@ -191,7 +189,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
}
# endif /* STATFS_TRUNCATES_BLOCK_COUNTS */
-#elif defined STAT_STATFS2_FSIZE /* 4.4BSD */
+#elif defined STAT_STATFS2_FSIZE /* 4.4BSD */
struct statfs fsd;
@@ -200,7 +198,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_fsize);
-#elif defined STAT_STATFS4 /* SVR3, Dynix, Irix, AIX */
+#elif defined STAT_STATFS4 /* SVR3, Dynix, Irix, AIX */
# if !_AIX && !defined _SEQUENT_ && !defined DOLPHIN
# define f_bavail f_bfree
@@ -234,6 +232,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
#endif
+ (void) disk; /* avoid argument-unused warning */
return 0;
}