896f0afdb7
* kern/partition.c (grub_partition_probe): Initialize PART to NULL. Otherwise, when no partition map is registered, this returns a garbage.
112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2004 Free Software Foundation, Inc.
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*
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* GRUB 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 GRUB; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <grub/partition.h>
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#include <grub/disk.h>
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static grub_partition_map_t grub_partition_map_list;
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void
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grub_partition_map_register (grub_partition_map_t partmap)
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{
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partmap->next = grub_partition_map_list;
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grub_partition_map_list = partmap;
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}
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void
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grub_partition_map_unregister (grub_partition_map_t partmap)
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{
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grub_partition_map_t *p, q;
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for (p = &grub_partition_map_list, q = *p; q; p = &(q->next), q = q->next)
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if (q == partmap)
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{
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*p = q->next;
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break;
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}
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}
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void
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grub_partition_map_iterate (int (*hook) (const grub_partition_map_t partmap))
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{
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grub_partition_map_t p;
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for (p = grub_partition_map_list; p; p = p->next)
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if (hook (p))
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break;
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}
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grub_partition_t
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grub_partition_probe (struct grub_disk *disk, const char *str)
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{
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grub_partition_t part = 0;
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auto int part_map_probe (const grub_partition_map_t partmap);
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int part_map_probe (const grub_partition_map_t partmap)
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{
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part = partmap->probe (disk, str);
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if (part)
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return 1;
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if (grub_errno == GRUB_ERR_BAD_PART_TABLE)
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{
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/* Continue to next partition map type. */
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grub_errno = GRUB_ERR_NONE;
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return 0;
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}
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return 1;
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}
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/* Use the first partition map type found. */
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grub_partition_map_iterate (part_map_probe);
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return part;
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}
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grub_err_t
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grub_partition_iterate (struct grub_disk *disk,
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int (*hook) (const grub_partition_t partition))
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{
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auto int part_map_iterate (const grub_partition_map_t partmap);
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int part_map_iterate (const grub_partition_map_t partmap)
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{
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grub_err_t err = partmap->iterate (disk, hook);
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if (err == GRUB_ERR_BAD_PART_TABLE)
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{
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/* Continue to next partition map type. */
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grub_errno = GRUB_ERR_NONE;
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return 0;
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}
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return 1;
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}
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grub_partition_map_iterate (part_map_iterate);
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return grub_errno;
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}
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char *
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grub_partition_get_name (const grub_partition_t partition)
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{
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return partition->partmap->get_name (partition);
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}
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