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/* map.h - Map file creation */
/*
Copyright 1992-1998 Werner Almesberger.
Copyright 1999-2004 John Coffman.
All rights reserved.
Licensed under the terms contained in the file 'COPYING' in the
source directory.
*/
#ifndef MAP_H
#define MAP_H
#ifndef SEEK_SET
#define SEEK_SET 0
#endif
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif
#ifndef SEEK_END
#define SEEK_END 2
#endif
void map_patch_first(char *name,char *str);
/* Puts str into the first sector of a map file. */
void map_create(char *name);
/* Create and initialize the specified map file. */
void map_descrs(DESCR_SECTORS *descr, SECTOR_ADDR* addr, SECTOR_ADDR* dflcmd);
/* Updates map file with descriptors & default command line */
void map_close(BOOT_PARAMS_2 *param2, off_t here);
/* closes the map file, write second stage parameters */
void map_add_sector(void *sector);
/* Adds the specified sector to the map file and registers it in the map
section. */
void map_begin_section(void);
/* Begins a map section. Note: maps can also be written to memory with
map_write. Thus, the map routines can be used even without map_create. */
void map_add(GEOMETRY *geo,int from,int num_sect);
/* Adds pointers to sectors from the specified file to the map file, starting
"from" sectors from the beginning. */
void map_add_zero(void);
/* Adds a zero-filled sector to the current section. */
int map_end_section(SECTOR_ADDR *addr,int dont_compact);
/* Writes a map section to the map file and returns the address of the first
sector of that section. The first DONT_COMPACT sectors are never compacted.
Returns the number of sectors that have been mapped. */
#ifdef LCF_FIRST6
int map_write(SECTOR_ADDR *list,int max_len,int terminate,int sa6);
#else
int map_write(SECTOR_ADDR *list,int max_len,int terminate);
#endif
/* Writes a map section to an array. If terminate is non-zero, a terminating
zero entry is written. If the section (including the terminating zero entry)
exceeds max_len sectors, map_write dies. */
off_t map_insert_file(GEOMETRY *geo, int skip, int sectors);
/* Copies a file (second stage loader, usually) into the map file, skipping
'skip' sectors at the beginning, and writing 'sectors' sectors. The
sectors are added to the current map section. */
off_t map_insert_data(unsigned char *data, int size);
/* Copies data from an internal array into the map file. The sectors
are added to the current map section */
#endif
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