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https://github.com/libguestfs/libguestfs.git
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54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/* libguestfs
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* Copyright (C) 2009-2017 Red Hat Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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 <string.h>
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#include "guestfs.h"
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#include "guestfs-internal.h"
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#include "guestfs-internal-actions.h"
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char *
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guestfs_impl_canonical_device_name (guestfs_h *g, const char *device)
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{
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char *ret;
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size_t len;
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/* /dev/hd etc. */
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if (STRPREFIX (device, "/dev/") &&
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strchr (device+5, '/') == NULL && /* not an LV name */
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device[5] != 'm' && /* not /dev/md - RHBZ#1414682 */
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((len = strcspn (device+5, "d")) > 0 && len <= 2)) {
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ret = safe_asprintf (g, "/dev/sd%s", &device[5+len+1]);
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}
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else if (STRPREFIX (device, "/dev/mapper/") ||
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STRPREFIX (device, "/dev/dm-")) {
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/* XXX hide errors */
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ret = guestfs_lvm_canonical_lv_name (g, device);
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if (ret == NULL)
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ret = safe_strdup (g, device);
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}
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else
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ret = safe_strdup (g, device);
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return ret; /* caller frees */
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}
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