bigbiff
7b4c7a681c
Break libblkid into 4 libraries: libblkid, libuuid, libutil-linux and libfdisk. This should help in later patch updates. Change-Id: I680d9a7feb031e5c29a603e9c58aff4b65826262
580 lines
20 KiB
C
580 lines
20 KiB
C
/*
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* libfdisk.h - libfdisk API
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*
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* Copyright (C) 2012-2014 Karel Zak <kzak@redhat.com>
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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 2.1 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 General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _LIBFDISK_H
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#define _LIBFDISK_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdint.h>
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/**
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* LIBFDISK_VERSION:
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*
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* Library version string
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*/
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#define LIBFDISK_VERSION "2.25.0"
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/**
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* fdisk_context:
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*
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* Basic library handler.
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*/
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struct fdisk_context;
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/**
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* fdisk_label:
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*
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* Disk label specific driver and setting.
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*/
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struct fdisk_label;
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/**
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* fdisk_parttype:
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*
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* Partition type.
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*/
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struct fdisk_parttype;
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/**
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* fdisk_partition:
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*
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* Partition abstraction (and template).
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*/
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struct fdisk_partition;
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/**
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* fdisk_ask:
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*
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* Ask API handler for dialogs with users.
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*/
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struct fdisk_ask;
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/**
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* fdisk_iter:
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*
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* Unified iterator.
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*/
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struct fdisk_iter;
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/**
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* fdisk_table:
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*
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* Container for fdisk_partition objects
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*/
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struct fdisk_table;
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/**
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* fdisk_field
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*
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* Output field description.
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*/
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struct fdisk_field;
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/**
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* fdisk_script
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*
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* library handler for sfdisk compatible scripts
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*/
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struct fdisk_script;
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/**
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* fdisk_sector_t
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*
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* LBA adresses type
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*/
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typedef uint64_t fdisk_sector_t;
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/**
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* fdisk_labeltype:
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*
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* Supported partition table types (labels)
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*/
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enum fdisk_labeltype {
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FDISK_DISKLABEL_DOS = (1 << 1),
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FDISK_DISKLABEL_SUN = (1 << 2),
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FDISK_DISKLABEL_SGI = (1 << 3),
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FDISK_DISKLABEL_BSD = (1 << 4),
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FDISK_DISKLABEL_GPT = (1 << 5)
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};
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/**
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* fdisk_asktype:
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*
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* Ask API dialog types
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*/
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enum fdisk_asktype {
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FDISK_ASKTYPE_NONE = 0,
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FDISK_ASKTYPE_NUMBER,
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FDISK_ASKTYPE_OFFSET,
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FDISK_ASKTYPE_WARN,
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FDISK_ASKTYPE_WARNX,
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FDISK_ASKTYPE_INFO,
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FDISK_ASKTYPE_YESNO,
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FDISK_ASKTYPE_STRING,
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FDISK_ASKTYPE_MENU
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};
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/* init.c */
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extern void fdisk_init_debug(int mask);
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/* context.h */
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#define FDISK_PLURAL 0
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#define FDISK_SINGULAR 1
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struct fdisk_context *fdisk_new_context(void);
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struct fdisk_context *fdisk_new_nested_context(struct fdisk_context *parent, const char *name);
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void fdisk_unref_context(struct fdisk_context *cxt);
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void fdisk_ref_context(struct fdisk_context *cxt);
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struct fdisk_context *fdisk_get_parent(struct fdisk_context *cxt);
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size_t fdisk_get_npartitions(struct fdisk_context *cxt);
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struct fdisk_label *fdisk_get_label(struct fdisk_context *cxt, const char *name);
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int fdisk_next_label(struct fdisk_context *cxt, struct fdisk_label **lb);
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size_t fdisk_get_nlabels(struct fdisk_context *cxt);
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int fdisk_has_label(struct fdisk_context *cxt);
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int fdisk_is_labeltype(struct fdisk_context *cxt, enum fdisk_labeltype id);
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#define fdisk_is_label(c, x) fdisk_is_labeltype(c, FDISK_DISKLABEL_ ## x)
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int fdisk_assign_device(struct fdisk_context *cxt,
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const char *fname, int readonly);
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int fdisk_deassign_device(struct fdisk_context *cxt, int nosync);
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int fdisk_is_readonly(struct fdisk_context *cxt);
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int fdisk_enable_details(struct fdisk_context *cxt, int enable);
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int fdisk_is_details(struct fdisk_context *cxt);
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int fdisk_enable_listonly(struct fdisk_context *cxt, int enable);
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int fdisk_is_listonly(struct fdisk_context *cxt);
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int fdisk_set_unit(struct fdisk_context *cxt, const char *str);
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const char *fdisk_get_unit(struct fdisk_context *cxt, int n);
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int fdisk_use_cylinders(struct fdisk_context *cxt);
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unsigned int fdisk_get_units_per_sector(struct fdisk_context *cxt);
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unsigned long fdisk_get_optimal_iosize(struct fdisk_context *cxt);
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unsigned long fdisk_get_minimal_iosize(struct fdisk_context *cxt);
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unsigned long fdisk_get_physector_size(struct fdisk_context *cxt);
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unsigned long fdisk_get_sector_size(struct fdisk_context *cxt);
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unsigned long fdisk_get_alignment_offset(struct fdisk_context *cxt);
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unsigned long fdisk_get_grain_size(struct fdisk_context *cxt);
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fdisk_sector_t fdisk_get_first_lba(struct fdisk_context *cxt);
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fdisk_sector_t fdisk_set_first_lba(struct fdisk_context *cxt, fdisk_sector_t lba);
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fdisk_sector_t fdisk_get_last_lba(struct fdisk_context *cxt);
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fdisk_sector_t fdisk_set_last_lba(struct fdisk_context *cxt, fdisk_sector_t lba);
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fdisk_sector_t fdisk_get_nsectors(struct fdisk_context *cxt);
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const char *fdisk_get_devname(struct fdisk_context *cxt);
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int fdisk_get_devfd(struct fdisk_context *cxt);
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unsigned int fdisk_get_geom_heads(struct fdisk_context *cxt);
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fdisk_sector_t fdisk_get_geom_sectors(struct fdisk_context *cxt);
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fdisk_sector_t fdisk_get_geom_cylinders(struct fdisk_context *cxt);
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/* parttype.c */
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struct fdisk_parttype *fdisk_new_parttype(void);
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void fdisk_ref_parttype(struct fdisk_parttype *t);
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void fdisk_unref_parttype(struct fdisk_parttype *t);
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int fdisk_parttype_set_name(struct fdisk_parttype *t, const char *str);
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int fdisk_parttype_set_typestr(struct fdisk_parttype *t, const char *str);
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int fdisk_parttype_set_code(struct fdisk_parttype *t, int code);
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size_t fdisk_label_get_nparttypes(const struct fdisk_label *lb);
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struct fdisk_parttype *fdisk_label_get_parttype(const struct fdisk_label *lb, size_t n);
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int fdisk_label_has_code_parttypes(const struct fdisk_label *lb);
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struct fdisk_parttype *fdisk_label_get_parttype_from_code(
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const struct fdisk_label *lb,
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unsigned int code);
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struct fdisk_parttype *fdisk_label_get_parttype_from_string(
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const struct fdisk_label *lb,
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const char *str);
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struct fdisk_parttype *fdisk_new_unknown_parttype(unsigned int code,
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const char *typestr);
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struct fdisk_parttype *fdisk_copy_parttype(const struct fdisk_parttype *type);
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struct fdisk_parttype *fdisk_label_parse_parttype(
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const struct fdisk_label *lb,
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const char *str);
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const char *fdisk_parttype_get_string(const struct fdisk_parttype *t);
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unsigned int fdisk_parttype_get_code(const struct fdisk_parttype *t);
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const char *fdisk_parttype_get_name(const struct fdisk_parttype *t);
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int fdisk_parttype_is_unknown(const struct fdisk_parttype *t);
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/* label.c */
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/**
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* fdisk_fieldtype
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*
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* Types of fdisk_field
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*/
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enum fdisk_fieldtype {
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FDISK_FIELD_NONE = 0,
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/* generic */
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FDISK_FIELD_DEVICE,
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FDISK_FIELD_START,
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FDISK_FIELD_END,
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FDISK_FIELD_SECTORS,
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FDISK_FIELD_CYLINDERS,
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FDISK_FIELD_SIZE,
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FDISK_FIELD_TYPE,
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FDISK_FIELD_TYPEID,
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/* label specific */
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FDISK_FIELD_ATTR,
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FDISK_FIELD_BOOT,
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FDISK_FIELD_BSIZE,
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FDISK_FIELD_CPG,
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FDISK_FIELD_EADDR,
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FDISK_FIELD_FSIZE,
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FDISK_FIELD_NAME,
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FDISK_FIELD_SADDR,
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FDISK_FIELD_UUID,
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FDISK_NFIELDS /* must be last */
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};
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int fdisk_label_get_type(const struct fdisk_label *lb);
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const char *fdisk_label_get_name(const struct fdisk_label *lb);
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int fdisk_label_require_geometry(const struct fdisk_label *lb);
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extern int fdisk_write_disklabel(struct fdisk_context *cxt);
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extern int fdisk_verify_disklabel(struct fdisk_context *cxt);
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extern int fdisk_create_disklabel(struct fdisk_context *cxt, const char *name);
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extern int fdisk_list_disklabel(struct fdisk_context *cxt);
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extern int fdisk_locate_disklabel(struct fdisk_context *cxt, int n, const char **name, off_t *offset, size_t *size);
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extern int fdisk_get_disklabel_id(struct fdisk_context *cxt, char **id);
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extern int fdisk_set_disklabel_id(struct fdisk_context *cxt);
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extern int fdisk_get_partition(struct fdisk_context *cxt, size_t partno, struct fdisk_partition **pa);
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extern int fdisk_set_partition(struct fdisk_context *cxt, size_t partno, struct fdisk_partition *pa);
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extern int fdisk_add_partition(struct fdisk_context *cxt, struct fdisk_partition *pa, size_t *partno);
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extern int fdisk_delete_partition(struct fdisk_context *cxt, size_t partno);
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extern int fdisk_delete_all_partitions(struct fdisk_context *cxt);
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extern int fdisk_set_partition_type(struct fdisk_context *cxt, size_t partnum,
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struct fdisk_parttype *t);
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extern int fdisk_label_get_fields_ids(
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const struct fdisk_label *lb,
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struct fdisk_context *cxt,
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int **ids, size_t *nids);
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extern const struct fdisk_field *fdisk_label_get_field(const struct fdisk_label *lb, int id);
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extern const struct fdisk_field *fdisk_label_get_field_by_name(
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const struct fdisk_label *lb,
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const char *name);
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extern int fdisk_field_get_id(const struct fdisk_field *field);
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extern const char *fdisk_field_get_name(const struct fdisk_field *field);
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extern double fdisk_field_get_width(const struct fdisk_field *field);
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extern int fdisk_field_is_number(const struct fdisk_field *field);
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extern void fdisk_label_set_changed(struct fdisk_label *lb, int changed);
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extern int fdisk_label_is_changed(const struct fdisk_label *lb);
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extern void fdisk_label_set_disabled(struct fdisk_label *lb, int disabled);
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extern int fdisk_label_is_disabled(const struct fdisk_label *lb);
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extern int fdisk_is_partition_used(struct fdisk_context *cxt, size_t n);
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extern int fdisk_toggle_partition_flag(struct fdisk_context *cxt, size_t partnum, unsigned long flag);
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extern struct fdisk_partition *fdisk_new_partition(void);
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extern void fdisk_reset_partition(struct fdisk_partition *pa);
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extern void fdisk_ref_partition(struct fdisk_partition *pa);
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extern void fdisk_unref_partition(struct fdisk_partition *pa);
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extern int fdisk_partition_is_freespace(struct fdisk_partition *pa);
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int fdisk_partition_set_start(struct fdisk_partition *pa, uint64_t off);
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int fdisk_partition_unset_start(struct fdisk_partition *pa);
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uint64_t fdisk_partition_get_start(struct fdisk_partition *pa);
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int fdisk_partition_has_start(struct fdisk_partition *pa);
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int fdisk_partition_cmp_start(struct fdisk_partition *a,
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struct fdisk_partition *b);
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int fdisk_partition_start_follow_default(struct fdisk_partition *pa, int enable);
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int fdisk_partition_start_is_default(struct fdisk_partition *pa);
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int fdisk_partition_set_size(struct fdisk_partition *pa, uint64_t sz);
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int fdisk_partition_unset_size(struct fdisk_partition *pa);
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uint64_t fdisk_partition_get_size(struct fdisk_partition *pa);
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int fdisk_partition_has_size(struct fdisk_partition *pa);
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int fdisk_partition_size_explicit(struct fdisk_partition *pa, int enable);
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int fdisk_partition_has_end(struct fdisk_partition *pa);
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fdisk_sector_t fdisk_partition_get_end(struct fdisk_partition *pa);
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int fdisk_partition_set_partno(struct fdisk_partition *pa, size_t num);
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int fdisk_partition_unset_partno(struct fdisk_partition *pa);
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size_t fdisk_partition_get_partno(struct fdisk_partition *pa);
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int fdisk_partition_has_partno(struct fdisk_partition *pa);
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int fdisk_partition_cmp_partno(struct fdisk_partition *a,
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struct fdisk_partition *b);
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int fdisk_partition_partno_follow_default(struct fdisk_partition *pa, int enable);
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extern int fdisk_partition_set_type(struct fdisk_partition *pa, struct fdisk_parttype *type);
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extern struct fdisk_parttype *fdisk_partition_get_type(struct fdisk_partition *pa);
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extern int fdisk_partition_set_name(struct fdisk_partition *pa, const char *name);
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extern const char *fdisk_partition_get_name(struct fdisk_partition *pa);
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extern int fdisk_partition_set_uuid(struct fdisk_partition *pa, const char *uuid);
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extern int fdisk_partition_set_attrs(struct fdisk_partition *pa, const char *attrs);
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extern const char *fdisk_partition_get_uuid(struct fdisk_partition *pa);
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extern const char *fdisk_partition_get_attrs(struct fdisk_partition *pa);
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extern int fdisk_partition_is_nested(struct fdisk_partition *pa);
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extern int fdisk_partition_is_container(struct fdisk_partition *pa);
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extern int fdisk_partition_get_parent(struct fdisk_partition *pa, size_t *parent);
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extern int fdisk_partition_is_used(struct fdisk_partition *pa);
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extern int fdisk_partition_is_bootable(struct fdisk_partition *pa);
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extern int fdisk_partition_to_string(struct fdisk_partition *pa,
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struct fdisk_context *cxt,
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int id, char **data);
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int fdisk_partition_next_partno(struct fdisk_partition *pa,
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struct fdisk_context *cxt,
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size_t *n);
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extern int fdisk_partition_end_follow_default(struct fdisk_partition *pa, int enable);
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extern int fdisk_partition_end_is_default(struct fdisk_partition *pa);
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extern int fdisk_reorder_partitions(struct fdisk_context *cxt);
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/* table.c */
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extern struct fdisk_table *fdisk_new_table(void);
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extern int fdisk_reset_table(struct fdisk_table *tb);
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extern void fdisk_ref_table(struct fdisk_table *tb);
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extern void fdisk_unref_table(struct fdisk_table *tb);
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extern size_t fdisk_table_get_nents(struct fdisk_table *tb);
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extern int fdisk_table_is_empty(struct fdisk_table *tb);
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extern int fdisk_table_add_partition(struct fdisk_table *tb, struct fdisk_partition *pa);
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extern int fdisk_table_remove_partition(struct fdisk_table *tb, struct fdisk_partition *pa);
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extern int fdisk_get_partitions(struct fdisk_context *cxt, struct fdisk_table **tb);
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extern int fdisk_get_freespaces(struct fdisk_context *cxt, struct fdisk_table **tb);
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extern int fdisk_table_wrong_order(struct fdisk_table *tb);
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extern int fdisk_table_sort_partitions(struct fdisk_table *tb,
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int (*cmp)(struct fdisk_partition *,
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struct fdisk_partition *));
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extern int fdisk_table_next_partition(
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struct fdisk_table *tb,
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struct fdisk_iter *itr,
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struct fdisk_partition **pa);
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extern struct fdisk_partition *fdisk_table_get_partition(
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struct fdisk_table *tb,
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size_t n);
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extern int fdisk_apply_table(struct fdisk_context *cxt, struct fdisk_table *tb);
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/* alignment.c */
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#define FDISK_ALIGN_UP 1
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#define FDISK_ALIGN_DOWN 2
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#define FDISK_ALIGN_NEAREST 3
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fdisk_sector_t fdisk_align_lba(struct fdisk_context *cxt, fdisk_sector_t lba, int direction);
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fdisk_sector_t fdisk_align_lba_in_range(struct fdisk_context *cxt,
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fdisk_sector_t lba, fdisk_sector_t start, fdisk_sector_t stop);
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int fdisk_lba_is_phy_aligned(struct fdisk_context *cxt, fdisk_sector_t lba);
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int fdisk_override_geometry(struct fdisk_context *cxt,
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unsigned int cylinders,
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unsigned int heads,
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unsigned int sectors);
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int fdisk_save_user_geometry(struct fdisk_context *cxt,
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unsigned int cylinders,
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unsigned int heads,
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unsigned int sectors);
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int fdisk_save_user_sector_size(struct fdisk_context *cxt,
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unsigned int phy,
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unsigned int log);
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int fdisk_has_user_device_properties(struct fdisk_context *cxt);
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int fdisk_reset_alignment(struct fdisk_context *cxt);
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int fdisk_reset_device_properties(struct fdisk_context *cxt);
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int fdisk_reread_partition_table(struct fdisk_context *cxt);
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/* iter.c */
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enum {
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FDISK_ITER_FORWARD = 0,
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FDISK_ITER_BACKWARD
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};
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extern struct fdisk_iter *fdisk_new_iter(int direction);
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extern void fdisk_free_iter(struct fdisk_iter *itr);
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extern void fdisk_reset_iter(struct fdisk_iter *itr, int direction);
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extern int fdisk_iter_get_direction(struct fdisk_iter *itr);
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/* dos.c */
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#define DOS_FLAG_ACTIVE 1
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extern int fdisk_dos_move_begin(struct fdisk_context *cxt, size_t i);
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extern int fdisk_dos_enable_compatible(struct fdisk_label *lb, int enable);
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extern int fdisk_dos_is_compatible(struct fdisk_label *lb);
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/* sun.h */
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extern int fdisk_sun_set_alt_cyl(struct fdisk_context *cxt);
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extern int fdisk_sun_set_xcyl(struct fdisk_context *cxt);
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extern int fdisk_sun_set_ilfact(struct fdisk_context *cxt);
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extern int fdisk_sun_set_rspeed(struct fdisk_context *cxt);
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extern int fdisk_sun_set_pcylcount(struct fdisk_context *cxt);
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/* bsd.c */
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extern int fdisk_bsd_edit_disklabel(struct fdisk_context *cxt);
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extern int fdisk_bsd_write_bootstrap(struct fdisk_context *cxt);
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extern int fdisk_bsd_link_partition(struct fdisk_context *cxt);
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/* sgi.h */
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#define SGI_FLAG_BOOT 1
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#define SGI_FLAG_SWAP 2
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extern int fdisk_sgi_set_bootfile(struct fdisk_context *cxt);
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extern int fdisk_sgi_create_info(struct fdisk_context *cxt);
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/* gpt */
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/* GPT partition attributes */
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enum {
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/* System partition (disk partitioning utilities must preserve the
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* partition as is) */
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GPT_FLAG_REQUIRED = 1,
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/* EFI firmware should ignore the content of the partition and not try
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* to read from it */
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GPT_FLAG_NOBLOCK,
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/* Legacy BIOS bootable */
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GPT_FLAG_LEGACYBOOT,
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/* bites 48-63, Defined and used by the individual partition type.
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*
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* The flag GPT_FLAG_GUIDSPECIFIC forces libfdisk to ask (by ask API)
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* for a bit number. If you want to toggle specific bit and avoid any
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* dialog, then use the bit number (in range 48..63). For example:
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*
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* // start dialog to ask for bit number
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* fdisk_toggle_partition_flag(cxt, n, GPT_FLAG_GUIDSPECIFIC);
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*
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* // toggle bit 60
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* fdisk_toggle_partition_flag(cxt, n, 60);
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*/
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GPT_FLAG_GUIDSPECIFIC
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};
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extern int fdisk_gpt_is_hybrid(struct fdisk_context *cxt);
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/* script.c */
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struct fdisk_script *fdisk_new_script(struct fdisk_context *cxt);
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struct fdisk_script *fdisk_new_script_from_file(struct fdisk_context *cxt,
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const char *filename);
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void fdisk_ref_script(struct fdisk_script *dp);
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void fdisk_unref_script(struct fdisk_script *dp);
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const char *fdisk_script_get_header(struct fdisk_script *dp, const char *name);
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int fdisk_script_set_header(struct fdisk_script *dp, const char *name, const char *data);
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struct fdisk_table *fdisk_script_get_table(struct fdisk_script *dp);
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int fdisk_script_get_nlines(struct fdisk_script *dp);
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int fdisk_script_read_context(struct fdisk_script *dp, struct fdisk_context *cxt);
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int fdisk_script_write_file(struct fdisk_script *dp, FILE *f);
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int fdisk_script_read_file(struct fdisk_script *dp, FILE *f);
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int fdisk_script_read_line(struct fdisk_script *dp, FILE *f, char *buf, size_t bufsz);
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int fdisk_set_script(struct fdisk_context *cxt, struct fdisk_script *dp);
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struct fdisk_script *fdisk_get_script(struct fdisk_context *cxt);
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int fdisk_apply_script_headers(struct fdisk_context *cxt, struct fdisk_script *dp);
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int fdisk_apply_script(struct fdisk_context *cxt, struct fdisk_script *dp);
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/* ask.c */
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#define fdisk_is_ask(a, x) (fdisk_ask_get_type(a) == FDISK_ASKTYPE_ ## x)
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int fdisk_set_ask(struct fdisk_context *cxt,
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int (*ask_cb)(struct fdisk_context *, struct fdisk_ask *, void *),
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void *data);
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void fdisk_ref_ask(struct fdisk_ask *ask);
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void fdisk_unref_ask(struct fdisk_ask *ask);
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const char *fdisk_ask_get_query(struct fdisk_ask *ask);
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int fdisk_ask_get_type(struct fdisk_ask *ask);
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const char *fdisk_ask_number_get_range(struct fdisk_ask *ask);
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uint64_t fdisk_ask_number_get_default(struct fdisk_ask *ask);
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uint64_t fdisk_ask_number_get_low(struct fdisk_ask *ask);
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uint64_t fdisk_ask_number_get_high(struct fdisk_ask *ask);
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uint64_t fdisk_ask_number_get_result(struct fdisk_ask *ask);
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int fdisk_ask_number_set_result(struct fdisk_ask *ask, uint64_t result);
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uint64_t fdisk_ask_number_get_base(struct fdisk_ask *ask);
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uint64_t fdisk_ask_number_get_unit(struct fdisk_ask *ask);
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int fdisk_ask_number_set_relative(struct fdisk_ask *ask, int relative);
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int fdisk_ask_number_inchars(struct fdisk_ask *ask);
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int fdisk_ask_partnum(struct fdisk_context *cxt, size_t *partnum, int wantnew);
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int fdisk_ask_number(struct fdisk_context *cxt,
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uintmax_t low,
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uintmax_t dflt,
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uintmax_t high,
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const char *query,
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uintmax_t *result);
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char *fdisk_ask_string_get_result(struct fdisk_ask *ask);
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int fdisk_ask_string_set_result(struct fdisk_ask *ask, char *result);
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int fdisk_ask_string(struct fdisk_context *cxt,
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const char *query,
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char **result);
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int fdisk_ask_yesno(struct fdisk_context *cxt,
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const char *query,
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int *result);
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int fdisk_ask_yesno_get_result(struct fdisk_ask *ask);
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int fdisk_ask_yesno_set_result(struct fdisk_ask *ask, int result);
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int fdisk_ask_menu_get_default(struct fdisk_ask *ask);
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int fdisk_ask_menu_set_result(struct fdisk_ask *ask, int key);
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int fdisk_ask_menu_get_result(struct fdisk_ask *ask, int *key);
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int fdisk_ask_menu_get_item(struct fdisk_ask *ask, size_t idx, int *key,
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const char **name, const char **desc);
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size_t fdisk_ask_menu_get_nitems(struct fdisk_ask *ask);
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int fdisk_ask_print_get_errno(struct fdisk_ask *ask);
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const char *fdisk_ask_print_get_mesg(struct fdisk_ask *ask);
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int fdisk_info(struct fdisk_context *cxt, const char *fmt, ...);
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int fdisk_warn(struct fdisk_context *cxt, const char *fmt, ...);
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int fdisk_warnx(struct fdisk_context *cxt, const char *fmt, ...);
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/* utils.h */
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extern char *fdisk_partname(const char *dev, size_t partno);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBFDISK_H */
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