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/* libguestfs
* Copyright (C) 2009-2019 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "guestfs.h"
#include "guestfs-internal.h"
#include "guestfs-internal-actions.h"
char *
guestfs_impl_canonical_device_name (guestfs_h *g, const char *device)
{
char *ret;
size_t len;
/* /dev/hd etc. */
if (STRPREFIX (device, "/dev/") &&
strchr (device+5, '/') == NULL && /* not an LV name */
device[5] != 'm' && /* not /dev/md - RHBZ#1414682 */
((len = strcspn (device+5, "d")) > 0 && len <= 2)) {
ret = safe_asprintf (g, "/dev/sd%s", &device[5+len+1]);
}
else if (STRPREFIX (device, "/dev/mapper/") ||
STRPREFIX (device, "/dev/dm-")) {
/* XXX hide errors */
ret = guestfs_lvm_canonical_lv_name (g, device);
if (ret == NULL)
ret = safe_strdup (g, device);
}
else
ret = safe_strdup (g, device);
return ret; /* caller frees */
}
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