mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-22 07:03:38 +00:00
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2015 Maxim Perevedentsev mperevedentsev@virtuozzo.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "daemon.h"
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#include "actions.h"
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static char*
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get_mount_point (const char *device)
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{
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CLEANUP_FREE_STRING_LIST char **mountpoints = do_mountpoints();
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size_t i;
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char *path;
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if (mountpoints == NULL) {
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reply_with_error ("cannot get mountpoints");
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return NULL;
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}
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for (i = 0; mountpoints[i] != NULL; i += 2) {
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if (STREQ (mountpoints[i], device)) {
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path = strdup (mountpoints[i + 1]);
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if (path == NULL)
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reply_with_perror ("strdup");
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return path;
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}
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}
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reply_with_error ("device not mounted: %s", device);
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return NULL;
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}
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int64_t
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do_vfs_minimum_size (const mountable_t *mountable)
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{
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int64_t r;
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/* How we get minimum size depends on the filesystem type. */
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CLEANUP_FREE char *vfs_type = do_vfs_type (mountable);
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if (vfs_type == NULL)
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return -1;
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else if (fstype_is_extfs (vfs_type))
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r = ext_minimum_size (mountable->device);
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else if (STREQ (vfs_type, "ntfs"))
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r = ntfs_minimum_size (mountable->device);
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else if (STREQ (vfs_type, "btrfs")) {
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CLEANUP_FREE char *path = get_mount_point (mountable->device);
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if (path == NULL)
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return -1;
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r = btrfs_minimum_size (path);
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}
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else if (STREQ (vfs_type, "xfs")) {
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CLEANUP_FREE char *path = get_mount_point (mountable->device);
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if (path == NULL)
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return -1;
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r = xfs_minimum_size (path);
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}
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else
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NOT_SUPPORTED (-1, "don't know how to get minimum size of '%s' filesystems",
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vfs_type);
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return r;
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}
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