diff options
Diffstat (limited to 'gnu/libexec/uucp/libunix/fsusg.c')
-rw-r--r-- | gnu/libexec/uucp/libunix/fsusg.c | 120 |
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 */ |