diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/fsusage.c | 140 |
1 files changed, 58 insertions, 82 deletions
diff --git a/lib/fsusage.c b/lib/fsusage.c index b13779073..0bb622447 100644 --- a/lib/fsusage.c +++ b/lib/fsusage.c @@ -1,6 +1,6 @@ /* fsusage.c -- return space usage of mounted file systems - Copyright (C) 1991, 1992, 1996, 1998, 1999, 2002, 2003, 2004, 2005 + Copyright (C) 1991, 1992, 1996, 1998, 1999, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify @@ -21,58 +21,46 @@ # include <config.h> #endif -#if HAVE_INTTYPES_H -# include <inttypes.h> -#endif -#if HAVE_STDINT_H -# include <stdint.h> -#endif -#include <unistd.h> -#ifndef UINTMAX_MAX -# define UINTMAX_MAX ((uintmax_t) -1) -#endif - -#include <sys/types.h> -#include <sys/stat.h> #include "fsusage.h" #include <limits.h> +#include <sys/types.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_FS_S5PARAM_H /* Fujitsu UXP/V */ -# include <sys/fs/s5param.h> -#endif - -#if defined HAVE_SYS_FILSYS_H && !defined _CRAY -# include <sys/filsys.h> /* SVR2 */ -#endif - -#include <fcntl.h> - -#if HAVE_SYS_STATFS_H -# include <sys/statfs.h> -#endif - -#if HAVE_DUSTAT_H /* AIX PS/2 */ -# include <sys/dustat.h> -#endif - -#if HAVE_SYS_STATVFS_H /* SVR4 */ +#if STAT_STATVFS /* POSIX 1003.1-2001 (and later) with XSI */ # include <sys/statvfs.h> +#else +/* Don't include backward-compatibility files unless they're needed. + Eventually we'd like to remove all this cruft. */ +# 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_FS_S5PARAM_H /* Fujitsu UXP/V */ +# include <sys/fs/s5param.h> +# endif +# if defined HAVE_SYS_FILSYS_H && !defined _CRAY +# include <sys/filsys.h> /* SVR2 */ +# endif +# if HAVE_SYS_STATFS_H +# include <sys/statfs.h> +# endif +# if HAVE_DUSTAT_H /* AIX PS/2 */ +# include <sys/dustat.h> +# endif +# include "full-read.h" #endif -#include "full-read.h" +#ifndef UINTMAX_MAX +# define UINTMAX_MAX ((uintmax_t) -1) +#endif /* Many space usage primitives use all 1 bits to denote a value that is not applicable or unknown. Propagate this information by returning @@ -108,18 +96,19 @@ int get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp) { -#ifdef STAT_STATFS3_OSF1 +#if defined STAT_STATVFS /* POSIX */ - struct statfs fsd; + struct statvfs fsd; - if (statfs (file, &fsd, sizeof (struct statfs)) != 0) + if (statvfs (file, &fsd) < 0) return -1; - fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_fsize); - -#endif /* STAT_STATFS3_OSF1 */ + /* 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)); -#ifdef STAT_STATFS2_FS_DATA /* Ultrix */ +#elif defined STAT_STATFS2_FS_DATA /* Ultrix */ struct fs_data fsd; @@ -134,9 +123,7 @@ 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); -#endif /* STAT_STATFS2_FS_DATA */ - -#ifdef STAT_READ_FILSYS /* SVR2 */ +#elif defined STAT_READ_FILSYS /* SVR2 */ # ifndef SUPERBOFF # define SUPERBOFF (SUPERB * 512) # endif @@ -171,9 +158,16 @@ 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); -#endif /* STAT_READ_FILSYS */ +#elif defined STAT_STATFS3_OSF1 + + struct statfs fsd; + + if (statfs (file, &fsd, sizeof (struct statfs)) != 0) + return -1; + + fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_fsize); -#ifdef 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; @@ -197,9 +191,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp) } # endif /* STATFS_TRUNCATES_BLOCK_COUNTS */ -#endif /* STAT_STATFS2_BSIZE */ - -#ifdef STAT_STATFS2_FSIZE /* 4.4BSD */ +#elif defined STAT_STATFS2_FSIZE /* 4.4BSD */ struct statfs fsd; @@ -208,9 +200,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp) fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_fsize); -#endif /* STAT_STATFS2_FSIZE */ - -#ifdef 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 @@ -230,24 +220,10 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp) fsp->fsu_blocksize = 512; # endif -#endif /* STAT_STATFS4 */ - -#ifdef STAT_STATVFS /* SVR4 */ - - struct statvfs fsd; - - if (statvfs (file, &fsd) < 0) - return -1; - - /* 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)); - -#endif /* STAT_STATVFS */ +#endif -#if !defined STAT_STATFS2_FS_DATA && !defined STAT_READ_FILSYS - /* !Ultrix && !SVR2 */ +#if (defined STAT_STATVFS \ + || (!defined STAT_STATFS2_FS_DATA && !defined STAT_READ_FILSYS)) fsp->fsu_blocks = PROPAGATE_ALL_ONES (fsd.f_blocks); fsp->fsu_bfree = PROPAGATE_ALL_ONES (fsd.f_bfree); @@ -256,7 +232,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp) fsp->fsu_files = PROPAGATE_ALL_ONES (fsd.f_files); fsp->fsu_ffree = PROPAGATE_ALL_ONES (fsd.f_ffree); -#endif /* not STAT_STATFS2_FS_DATA && not STAT_READ_FILSYS */ +#endif return 0; } |