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Imported Upstream version 1.4.16+git20130902

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This commit is contained in:
Jan Wagner 2013-11-26 23:59:47 +01:00
parent e76be63abf
commit e70fb8c051
517 changed files with 44015 additions and 43295 deletions
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107
gl/fsusage.c
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@ -1,6 +1,6 @@
/* fsusage.c -- return space usage of mounted file systems
Copyright (C) 1991-1992, 1996, 1998-1999, 2002-2006, 2009-2010 Free Software
Copyright (C) 1991-1992, 1996, 1998-1999, 2002-2006, 2009-2013 Free Software
Foundation, Inc.
This program is free software: you can redistribute it and/or modify
@ -23,7 +23,7 @@
#include <limits.h>
#include <sys/types.h>
#if STAT_STATVFS /* POSIX 1003.1-2001 (and later) with XSI */
#if STAT_STATVFS || STAT_STATVFS64 /* POSIX 1003.1-2001 (and later) with XSI */
# include <sys/statvfs.h>
#else
/* Don't include backward-compatibility files unless they're needed.
@ -31,15 +31,15 @@
# include <fcntl.h>
# include <unistd.h>
# include <sys/stat.h>
# 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_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_FS_S5PARAM_H /* Fujitsu UXP/V */
# include <sys/fs/s5param.h>
# endif
@ -84,6 +84,35 @@
otherwise, use PROPAGATE_ALL_ONES. */
#define PROPAGATE_TOP_BIT(x) ((x) | ~ (EXTRACT_TOP_BIT (x) - 1))
#ifdef STAT_STATVFS
/* Return true if statvfs works. This is false for statvfs on systems
with GNU libc on Linux kernels before 2.6.36, which stats all
preceding entries in /proc/mounts; that makes df hang if even one
of the corresponding file systems is hard-mounted but not available. */
# if ! (__linux__ && (__GLIBC__ || __UCLIBC__))
/* The FRSIZE fallback is not required in this case. */
# undef STAT_STATFS2_FRSIZE
static int statvfs_works (void) { return 1; }
# else
# include <string.h> /* for strverscmp */
# include <sys/utsname.h>
# include <sys/statfs.h>
# define STAT_STATFS2_BSIZE 1
static int
statvfs_works (void)
{
static int statvfs_works_cache = -1;
struct utsname name;
if (statvfs_works_cache < 0)
statvfs_works_cache = (uname (&name) == 0
&& 0 <= strverscmp (name.release, "2.6.36"));
return statvfs_works_cache;
}
# endif
#endif
/* Fill in the fields of FSP with information about space usage for
the file system on which FILE resides.
DISK is the device on which FILE is mounted, for space-getting
@ -94,11 +123,36 @@
int
get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
{
#if defined STAT_STATVFS /* POSIX */
#ifdef STAT_STATVFS /* POSIX, except pre-2.6.36 glibc/Linux */
struct statvfs fsd;
if (statvfs_works ())
{
struct statvfs vfsd;
if (statvfs (file, &fsd) < 0)
if (statvfs (file, &vfsd) < 0)
return -1;
/* f_frsize isn't guaranteed to be supported. */
fsp->fsu_blocksize = (vfsd.f_frsize
? PROPAGATE_ALL_ONES (vfsd.f_frsize)
: PROPAGATE_ALL_ONES (vfsd.f_bsize));
fsp->fsu_blocks = PROPAGATE_ALL_ONES (vfsd.f_blocks);
fsp->fsu_bfree = PROPAGATE_ALL_ONES (vfsd.f_bfree);
fsp->fsu_bavail = PROPAGATE_TOP_BIT (vfsd.f_bavail);
fsp->fsu_bavail_top_bit_set = EXTRACT_TOP_BIT (vfsd.f_bavail) != 0;
fsp->fsu_files = PROPAGATE_ALL_ONES (vfsd.f_files);
fsp->fsu_ffree = PROPAGATE_ALL_ONES (vfsd.f_ffree);
return 0;
}
#endif
#if defined STAT_STATVFS64 /* AIX */
struct statvfs64 fsd;
if (statvfs64 (file, &fsd) < 0)
return -1;
/* f_frsize isn't guaranteed to be supported. */
@ -156,7 +210,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
: (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
#elif defined STAT_STATFS3_OSF1 /* OSF/1 */
struct statfs fsd;
@ -165,7 +219,18 @@ 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_FRSIZE /* 2.6 < glibc/Linux < 2.6.36 */
struct statfs fsd;
if (statfs (file, &fsd) < 0)
return -1;
fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_frsize);
#elif defined STAT_STATFS2_BSIZE /* glibc/Linux < 2.6, 4.3BSD, SunOS 4, \
Mac OS X < 10.4, FreeBSD < 5.0, \
NetBSD < 3.0, OpenBSD < 4.4 */
struct statfs fsd;
@ -189,7 +254,7 @@ 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 and older NetBSD */
struct statfs fsd;
@ -198,7 +263,8 @@ 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, old Irix, old AIX, \
Dolphin */
# if !_AIX && !defined _SEQUENT_ && !defined DOLPHIN
# define f_bavail f_bfree
@ -220,8 +286,9 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
#endif
#if (defined STAT_STATVFS \
|| (!defined STAT_STATFS2_FS_DATA && !defined STAT_READ_FILSYS))
#if (defined STAT_STATVFS64 || defined STAT_STATFS3_OSF1 \
|| defined STAT_STATFS2_FRSIZE || defined STAT_STATFS2_BSIZE \
|| defined STAT_STATFS2_FSIZE || defined STAT_STATFS4)
fsp->fsu_blocks = PROPAGATE_ALL_ONES (fsd.f_blocks);
fsp->fsu_bfree = PROPAGATE_ALL_ONES (fsd.f_bfree);