2003-06-24 20:59:03 +02:00
|
|
|
/* Copyright (C) 1998,1999,2000,2001,2002,2003 Free Software Foundation, Inc.
|
2000-01-18 11:17:32 +01:00
|
|
|
This file is part of the GNU C Library.
|
|
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
|
|
|
|
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
2001-07-06 06:58:11 +02:00
|
|
|
modify it under the terms of the GNU Lesser General Public
|
|
|
|
License as published by the Free Software Foundation; either
|
|
|
|
version 2.1 of the License, or (at your option) any later version.
|
2000-01-18 11:17:32 +01:00
|
|
|
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
2001-07-06 06:58:11 +02:00
|
|
|
Lesser General Public License for more details.
|
2000-01-18 11:17:32 +01:00
|
|
|
|
2001-07-06 06:58:11 +02:00
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
|
|
License along with the GNU C Library; if not, write to the Free
|
|
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
|
|
02111-1307 USA. */
|
2000-01-18 11:17:32 +01:00
|
|
|
|
2003-09-17 02:49:19 +02:00
|
|
|
#include <errno.h>
|
|
|
|
#include <mntent.h>
|
|
|
|
#include <paths.h>
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include <stdio_ext.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <sys/mount.h>
|
|
|
|
#include <sys/stat.h>
|
|
|
|
#include <sys/statfs.h>
|
|
|
|
#include <sys/statvfs.h>
|
|
|
|
#include "linux_fsinfo.h"
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
__internal_statvfs (const char *name, struct statvfs *buf,
|
|
|
|
struct statfs *fsbuf, struct stat64 *st)
|
|
|
|
{
|
2000-01-18 11:17:32 +01:00
|
|
|
/* Now fill in the fields we have information for. */
|
2003-09-17 02:49:19 +02:00
|
|
|
buf->f_bsize = fsbuf->f_bsize;
|
2003-06-24 20:59:03 +02:00
|
|
|
/* Linux has the f_frsize size only in later version of the kernel.
|
|
|
|
If the value is not filled in use f_bsize. */
|
2003-09-17 02:49:19 +02:00
|
|
|
buf->f_frsize = fsbuf->f_frsize ?: fsbuf->f_bsize;
|
|
|
|
buf->f_blocks = fsbuf->f_blocks;
|
|
|
|
buf->f_bfree = fsbuf->f_bfree;
|
|
|
|
buf->f_bavail = fsbuf->f_bavail;
|
|
|
|
buf->f_files = fsbuf->f_files;
|
|
|
|
buf->f_ffree = fsbuf->f_ffree;
|
|
|
|
if (sizeof (buf->f_fsid) == sizeof (fsbuf->f_fsid))
|
|
|
|
buf->f_fsid = (fsbuf->f_fsid.__val[0]
|
|
|
|
| ((unsigned long int) fsbuf->f_fsid.__val[1]
|
2001-01-27 23:44:52 +01:00
|
|
|
<< (8 * (sizeof (buf->f_fsid)
|
2003-09-17 02:49:19 +02:00
|
|
|
- sizeof (fsbuf->f_fsid.__val[0])))));
|
2001-01-27 23:44:52 +01:00
|
|
|
else
|
|
|
|
/* We cannot help here. The statvfs element is not large enough to
|
|
|
|
contain both words of the statfs f_fsid field. */
|
2003-09-17 02:49:19 +02:00
|
|
|
buf->f_fsid = fsbuf->f_fsid.__val[0];
|
2001-01-27 23:44:52 +01:00
|
|
|
#ifdef _STATVFSBUF_F_UNUSED
|
|
|
|
buf->__f_unused = 0;
|
|
|
|
#endif
|
2003-09-17 02:49:19 +02:00
|
|
|
buf->f_namemax = fsbuf->f_namelen;
|
Update.
2000-02-27 Ulrich Drepper <drepper@redhat.com>
* conform/conformtest.pl (@headers): Add wordexp.h, wctype.h, wchar.h,
varargs.h, utmpx.h, utime.h, unistd.h, ulimit.h, ucontext.h, time.h,
termios.h, tar.h, sys/wait.h, sys/uio.h, sys/types.h, sys/times.h,
sys/timeb.h, sys/time.h, sys/statvfs.h, sys/stat.h, sys/shm.h,
sys/sem.h, and sys/resource.h.
Implement handling of allow-header.
* conform/data/fcntl.h-data: Correct various bugs.
* conform/data/fnmatch.h-data: Likewise.
* conform/data/math.h-data: Likewise.
* conform/data/ndbm.h-data: Likewise.
* conform/data/nl_types.h-data: Likewise.
* conform/data/poll.h-data: Likewise.
* conform/data/pthread.h-data: Likewise.
* conform/data/semaphore.h-data: Likewise.
* conform/data/setjmp.h-data: Likewise.
* conform/data/signal.h-data: Likewise.
* conform/data/stdarg.h-data: Likewise.
* conform/data/stddef.h-data: Likewise.
* conform/data/stdio.h-data: Likewise.
* conform/data/stdlib.h-data: Likewise.
* conform/data/string.h-data: Likewise.
* conform/data/strings.h-data: Likewise.
* conform/data/stropts.h-data: Likewise.
* conform/data/syslog.h-data: Likewise.
* conform/data/sys/ipc.h-data: Likewise.
* conform/data/sys/mman.h-data: Likewise.
* conform/data/sys/msg.h-data: Likewise.
* conform/data/tar.h-data: New file.
* conform/data/termios.h-data: New file.
* conform/data/time.h-data: New file.
* conform/data/ucontext.h-data: New file.
* conform/data/ulimit.h-data: New file.
* conform/data/unistd.h-data: New file.
* conform/data/utime.h-data: New file.
* conform/data/utmpx.h-data: New file.
* conform/data/varargs.h-data: New file.
* conform/data/wchar.h-data: New file.
* conform/data/wctype.h-data: New file.
* conform/data/wordexp.h-data: New file.
* conform/data/sys/resource.h-data: New file.
* conform/data/sys/sem.h-data: New file.
* conform/data/sys/shm.h-data: New file.
* conform/data/sys/stat.h-data: New file.
* conform/data/sys/statvfs.h-data: New file.
* conform/data/sys/time.h-data: New file.
* conform/data/sys/timeb.h-data: New file.
* conform/data/sys/times.h-data: New file.
* conform/data/sys/types.h-data: New file.
* conform/data/sys/uio.h-data: New file.
* conform/data/sys/wait.h-data: New file.
* grp/grp.h (getgrent_r): Declare only if __USE_GNU.
* include/sys/time.h (__itimes): Fix type of second parameter.
* io/sys/stat.h (S_IFLNK): Define also if __USE_XOPEN.
(S_ISVTX): Likewise.
* io/sys/statvfs.h: Define fsblkcnt_t and fsfilcnt_t.
* locale/langindo.h: Make ERA_YEAR, INT_CURR_SYMBOL, CURRENCY_SYMBOL,
MON_DECIMAL_POINT, MON_THOUSANDS_SEP, MON_GROUPING, POSITIVE_SIGN,
NEGATIVE_SIGN, INT_FRAC_DIGITS, FRAC_DIGITS, P_CS_PRECEDES,
P_SEP_BY_SPACE, N_CS_PRECEDES, N_SEP_BY_SPACE, P_SIGN_POSN,
N_SIGN_POSN, DECIMAL_POINT, THOUSANDS_SEP, GROUPING, YESEXPR,
NOEXPR, YESSTR, and NOSTR only available if __USE_GNU.
* math/bits/mathcalls.h: Don't declare tgamma and scalbn if only
__USE_XOPEN.
* posix/unistd.h: Don't define ptrdiff_t.
(sbrk): Correct type of parameter.
* sysdeps/generic/sbrk.c: Likewise.
* sysdeps/mach/hurd/sbrk.c: Likewise.
* posix/sys/types.h: Allow id_t, suseconds_t, fsblkcnt_t, and
fsfilcnt_t being defined elsewhere.
* resource/sys/resource.h: Define id_t.
If __USE_XOPEN use int for type of first parameter if getrlimit,
getrlimit64, setrlimit, setrlimit64, getrusage, getpriority, and
setpriority.
* sysdeps/generic/getpriority.c: Fix type of second parameter.
* sysdeps/generic/setpriority.c: Likewise.
* sysdeps/mach/hurd/getpriority.c: Likewise.
* sysdeps/mach/hurd/setpriority.c: Likewise.
* sysdeps/unix/sysv/irix4/getpriority.c: Likewise.
* sysdeps/unix/sysv/irix4/setpriority.c: Likewise.
* sysdeps/unix/sysv/linux/getpriority.c: Likewise.
* sysdeps/generic/utimes.c: Fix parameter of third parameter.
* sysdeps/mach/hurd/utimes.c: Likewise.
* sysdeps/posix/utimes.c: Likewise.
* sysdeps/generic/bits/shm.h: Define shmatt_t type and use it in
struct shmid_ds definition.
* sysdeps/gnu/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm.h: Likewise.
* sysvipc/sys/shm.h: Define time_t.
* sysvipc/sys/sem.h (struct sembuf): Make sem_num field unsigned.
* sysdeps/gnu/bits/sem.h: Rename anonymous type struct sem_queue and
struct sem_undo to struct __sem_queue and struct __sem_undo resp.
* time/time.h: Define suseconds_t if not already done.
* sysdeps/unix/sysv/linux/bits/statvfs.h: Rename f_spare to __f_spare.
* sysdeps/unix/sysv/linux/fstatvfs64.c: Likewise.
* sysdeps/unix/sysv/linux/statvfs64.c: Likewise.
* sysdeps/unix/sysv/linux/internal_statvfs.c: Likewise.
* intl/bindtextdom.c: Use rwlock to avoid surprising results in
multithreaded applications.
* intl/dcigettext.c: Likewise.
* intl/textdomain.c: Likewise.
* intl/*.c: Update copyright.
* sysdeps/generic/bits/libc-lock.h: Define __libc_rwlock_* stubs.
2000-02-27 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/configure.in: Treat also "/usr/" as
prefix especially.
2000-02-27 Ulrich Drepper <drepper@redhat.com>
* po/de.po: Update from translation team.
* po/ko.po: Likewise.
2000-02-28 06:08:01 +01:00
|
|
|
memset (buf->__f_spare, '\0', 6 * sizeof (int));
|
2000-01-18 11:17:32 +01:00
|
|
|
|
|
|
|
/* What remains to do is to fill the fields f_favail and f_flag. */
|
|
|
|
|
|
|
|
/* XXX I have no idea how to compute f_favail. Any idea??? */
|
|
|
|
buf->f_favail = buf->f_ffree;
|
|
|
|
|
|
|
|
/* Determining the flags is tricky. We have to read /proc/mounts or
|
|
|
|
the /etc/mtab file and search for the entry which matches the given
|
|
|
|
file. The way we can test for matching filesystem is using the
|
|
|
|
device number. */
|
|
|
|
buf->f_flag = 0;
|
2003-09-17 02:49:19 +02:00
|
|
|
if (st != NULL)
|
2000-01-18 11:17:32 +01:00
|
|
|
{
|
|
|
|
struct mntent mntbuf;
|
|
|
|
FILE *mtab;
|
2003-09-17 02:49:19 +02:00
|
|
|
const char *fsname = NULL;
|
|
|
|
const char *fsname2 = NULL;
|
|
|
|
bool success = false;
|
|
|
|
|
|
|
|
/* Map the filesystem type we got from the statfs call to a string. */
|
|
|
|
switch (fsbuf->f_type)
|
|
|
|
{
|
|
|
|
case EXT2_SUPER_MAGIC:
|
|
|
|
fsname = "ext3";
|
|
|
|
fsname2 = "ext2";
|
|
|
|
break;
|
|
|
|
case DEVPTS_SUPER_MAGIC:
|
|
|
|
fsname= "devpts";
|
|
|
|
break;
|
|
|
|
case SHMFS_SUPER_MAGIC:
|
|
|
|
fsname = "tmpfs";
|
|
|
|
break;
|
|
|
|
case PROC_SUPER_MAGIC:
|
|
|
|
fsname = "proc";
|
|
|
|
break;
|
|
|
|
case USBDEVFS_SUPER_MAGIC:
|
|
|
|
fsname = "usbdevfs";
|
|
|
|
break;
|
|
|
|
case AUTOFS_SUPER_MAGIC:
|
|
|
|
fsname = "autofs";
|
|
|
|
break;
|
|
|
|
case NFS_SUPER_MAGIC:
|
|
|
|
fsname = "nfs";
|
|
|
|
break;
|
|
|
|
}
|
2000-01-18 11:17:32 +01:00
|
|
|
|
|
|
|
mtab = __setmntent ("/proc/mounts", "r");
|
|
|
|
if (mtab == NULL)
|
|
|
|
mtab = __setmntent (_PATH_MOUNTED, "r");
|
|
|
|
|
|
|
|
if (mtab != NULL)
|
|
|
|
{
|
|
|
|
char tmpbuf[1024];
|
|
|
|
|
2002-09-21 07:54:00 +02:00
|
|
|
/* No locking needed. */
|
|
|
|
(void) __fsetlocking (mtab, FSETLOCKING_BYCALLER);
|
|
|
|
|
2003-09-17 02:49:19 +02:00
|
|
|
again:
|
2000-01-18 11:17:32 +01:00
|
|
|
while (__getmntent_r (mtab, &mntbuf, tmpbuf, sizeof (tmpbuf)))
|
|
|
|
{
|
2003-09-17 02:49:19 +02:00
|
|
|
/* In a first round we look for a given mount point, if
|
|
|
|
we have a name. */
|
|
|
|
if (name != NULL && strcmp (name, mntbuf.mnt_dir) != 0)
|
|
|
|
continue;
|
|
|
|
/* We need to look at the entry only if the filesystem
|
|
|
|
name matches. If we have a filesystem name. */
|
|
|
|
else if (fsname != NULL
|
|
|
|
&& strcmp (fsname, mntbuf.mnt_type) != 0
|
|
|
|
&& (fsname2 == NULL
|
|
|
|
|| strcmp (fsname2, mntbuf.mnt_type) != 0))
|
|
|
|
continue;
|
2000-01-18 11:17:32 +01:00
|
|
|
|
|
|
|
/* Find out about the device the current entry is for. */
|
2003-09-17 02:49:19 +02:00
|
|
|
struct stat64 fsst;
|
2000-09-01 04:26:05 +02:00
|
|
|
if (stat64 (mntbuf.mnt_dir, &fsst) >= 0
|
2003-09-17 02:49:19 +02:00
|
|
|
&& st->st_dev == fsst.st_dev)
|
2000-01-18 11:17:32 +01:00
|
|
|
{
|
|
|
|
/* Bingo, we found the entry for the device FD is on.
|
|
|
|
Now interpret the option string. */
|
|
|
|
char *cp = mntbuf.mnt_opts;
|
|
|
|
char *opt;
|
|
|
|
|
|
|
|
while ((opt = strsep (&cp, ",")) != NULL)
|
|
|
|
if (strcmp (opt, "ro") == 0)
|
|
|
|
buf->f_flag |= ST_RDONLY;
|
|
|
|
else if (strcmp (opt, "nosuid") == 0)
|
|
|
|
buf->f_flag |= ST_NOSUID;
|
|
|
|
else if (strcmp (opt, "noexec") == 0)
|
|
|
|
buf->f_flag |= ST_NOEXEC;
|
|
|
|
else if (strcmp (opt, "nodev") == 0)
|
|
|
|
buf->f_flag |= ST_NODEV;
|
|
|
|
else if (strcmp (opt, "sync") == 0)
|
|
|
|
buf->f_flag |= ST_SYNCHRONOUS;
|
|
|
|
else if (strcmp (opt, "mand") == 0)
|
|
|
|
buf->f_flag |= ST_MANDLOCK;
|
|
|
|
else if (strcmp (opt, "noatime") == 0)
|
|
|
|
buf->f_flag |= ST_NOATIME;
|
|
|
|
else if (strcmp (opt, "nodiratime") == 0)
|
|
|
|
buf->f_flag |= ST_NODIRATIME;
|
|
|
|
|
|
|
|
/* We can stop looking for more entries. */
|
2003-09-17 02:49:19 +02:00
|
|
|
success = true;
|
2000-01-18 11:17:32 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2003-09-17 02:49:19 +02:00
|
|
|
/* Maybe the kernel names for the filesystems changed or the
|
|
|
|
statvfs call got a name which was not the mount point.
|
|
|
|
Check again, this time without checking for name matches
|
|
|
|
first. */
|
|
|
|
if (! success)
|
|
|
|
{
|
|
|
|
if (name != NULL)
|
|
|
|
/* Try without a mount point name. */
|
|
|
|
name = NULL;
|
|
|
|
else if (fsname != NULL)
|
|
|
|
/* Try without a filesystem name. */
|
|
|
|
fsname = fsname2 = NULL;
|
|
|
|
|
|
|
|
/* It is not strictly allowed to use rewind here. But
|
|
|
|
this code is part of the implementation so it is
|
|
|
|
acceptable. */
|
|
|
|
rewind (mtab);
|
|
|
|
|
|
|
|
goto again;
|
|
|
|
}
|
2000-01-18 11:17:32 +01:00
|
|
|
|
|
|
|
/* Close the file. */
|
|
|
|
__endmntent (mtab);
|
2003-09-17 02:49:19 +02:00
|
|
|
|
2000-01-18 11:17:32 +01:00
|
|
|
}
|
|
|
|
}
|
2003-09-17 02:49:19 +02:00
|
|
|
}
|