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/* libguestfs - the guestfsd daemon
* Copyright (C) 2009 Red Hat 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
* the Free Software Foundation; either version 2 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
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdint.h>
#ifdef HAVE_SYS_STATVFS_H
#include <sys/statvfs.h>
#endif
#include <fsusage.h>
#include "guestfs_protocol.h"
#include "daemon.h"
#include "actions.h"
guestfs_int_statvfs *
do_statvfs (const char *path)
{
#ifdef HAVE_STATVFS
int r;
guestfs_int_statvfs *ret;
struct statvfs statbuf;
CHROOT_IN;
r = statvfs (path, &statbuf);
CHROOT_OUT;
if (r == -1) {
reply_with_perror ("statvfs");
return NULL;
}
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_perror ("malloc");
return NULL;
}
ret->bsize = statbuf.f_bsize;
ret->frsize = statbuf.f_frsize;
ret->blocks = statbuf.f_blocks;
ret->bfree = statbuf.f_bfree;
ret->bavail = statbuf.f_bavail;
ret->files = statbuf.f_files;
ret->ffree = statbuf.f_ffree;
ret->favail = statbuf.f_favail;
ret->fsid = statbuf.f_fsid;
ret->flag = statbuf.f_flag;
ret->namemax = statbuf.f_namemax;
return ret;
#else /* !HAVE_STATVFS */
# if WIN32
char *disk;
guestfs_int_statvfs *ret;
ULONGLONG free_bytes_available; /* for user - similar to bavail */
ULONGLONG total_number_of_bytes;
ULONGLONG total_number_of_free_bytes; /* for everyone - bfree */
disk = sysroot_path (path);
if (!disk) {
reply_with_perror ("malloc");
return NULL;
}
if (!GetDiskFreeSpaceEx (disk,
(PULARGE_INTEGER) &free_bytes_available,
(PULARGE_INTEGER) &total_number_of_bytes,
(PULARGE_INTEGER) &total_number_of_free_bytes)) {
reply_with_perror ("GetDiskFreeSpaceEx");
free (disk);
return NULL;
}
free (disk);
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_perror ("malloc");
return NULL;
}
/* XXX I couldn't determine how to get block size. MSDN has a
* unhelpful hard-coded list here:
* http://support.microsoft.com/kb/140365
* but this depends on the filesystem type, the size of the disk and
* the version of Windows. So this code assumes the disk is NTFS
* and the version of Windows is >= Win2K.
*/
if (total_number_of_bytes < UINT64_C(16) * 1024 * 1024 * 1024 * 1024)
ret->bsize = 4096;
else if (total_number_of_bytes < UINT64_C(32) * 1024 * 1024 * 1024 * 1024)
ret->bsize = 8192;
else if (total_number_of_bytes < UINT64_C(64) * 1024 * 1024 * 1024 * 1024)
ret->bsize = 16384;
else if (total_number_of_bytes < UINT64_C(128) * 1024 * 1024 * 1024 * 1024)
ret->bsize = 32768;
else
ret->bsize = 65536;
/* As with stat, -1 indicates a field is not known. */
ret->frsize = ret->bsize;
ret->blocks = total_number_of_bytes / ret->bsize;
ret->bfree = total_number_of_free_bytes / ret->bsize;
ret->bavail = free_bytes_available / ret->bsize;
ret->files = -1;
ret->ffree = -1;
ret->favail = -1;
ret->fsid = -1;
ret->flag = -1;
ret->namemax = FILENAME_MAX;
return ret;
# else /* !WIN32 */
char *disk;
int r;
guestfs_int_statvfs *ret;
struct fs_usage fsu;
disk = sysroot_path (path);
if (!disk) {
reply_with_perror ("malloc");
return NULL;
}
r = get_fs_usage (disk, disk, &fsu);
free (disk);
if (r == -1) {
reply_with_perror ("get_fs_usage: %s", path);
return NULL;
}
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_perror ("malloc");
return NULL;
}
/* As with stat, -1 indicates a field is not known. */
ret->bsize = fsu.f_bsize;
ret->frsize = -1;
ret->blocks = fsu.f_blocks;
ret->bfree = fsu.f_bfree;
ret->bavail = fsu.f_bavail;
ret->files = fsu.f_files;
ret->ffree = fsu.f_ffree;
ret->favail = -1;
ret->fsid = -1;
ret->flag = -1;
ret->namemax = -1;
return ret;
# endif /* !WIN32 */
#endif /* !HAVE_STATVFS */
}
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