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author | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-09-01 14:35:03 +0200 |
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committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-09-01 14:35:03 +0200 |
commit | 9533dc84d7addf792db4f4702b6fc7d7ddd20e78 (patch) | |
tree | 1efcf0fbc9fa590ea7aa6e6ac74cd34f71355a3a /include/sqfs/id_table.h | |
parent | 79c333899d318bf9b1eec3837833c7f0229d1906 (diff) |
Install libsquashfs.so headers on the system in "sqfs" subdirectory
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include/sqfs/id_table.h')
-rw-r--r-- | include/sqfs/id_table.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/sqfs/id_table.h b/include/sqfs/id_table.h new file mode 100644 index 0000000..dcc8a18 --- /dev/null +++ b/include/sqfs/id_table.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-3.0-or-later */ +/* + * id_table.h + * + * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> + */ +#ifndef ID_TABLE_H +#define ID_TABLE_H + +#include "config.h" + +#include <stdint.h> +#include <stddef.h> + +#include "compress.h" + +/* Encapsulates the ID table used by SquashFS */ +typedef struct { + /* Array of unique 32 bit IDs */ + uint32_t *ids; + + /* Number of 32 bit IDs stored in the array */ + size_t num_ids; + + /* Actual size of the array, i.e. maximum available */ + size_t max_ids; +} id_table_t; + +/* Returns 0 on success. Prints error message to stderr on failure. */ +int id_table_init(id_table_t *tbl); + +void id_table_cleanup(id_table_t *tbl); + +/* Resolve a 32 bit to a 16 bit table index. + Returns 0 on success. Internally prints errors to stderr. */ +int id_table_id_to_index(id_table_t *tbl, uint32_t id, uint16_t *out); + +/* Write an ID table to a SquashFS image. + Returns 0 on success. Internally prints error message to stderr. */ +int id_table_write(id_table_t *tbl, int outfd, sqfs_super_t *super, + compressor_t *cmp); + +/* Read an ID table from a SquashFS image. + Returns 0 on success. Internally prints error messages to stderr. */ +int id_table_read(id_table_t *tbl, int fd, sqfs_super_t *super, + compressor_t *cmp); + +#endif /* ID_TABLE_H */ |