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73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/*
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*
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* (c) 2005 Laurent Vivier <Laurent@lvivier.info>
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*
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*/
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#ifndef __LIBISO9660_H__
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#define __LIBISO9660_H__
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#include <unistd.h>
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#include <linux/iso_fs.h>
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#include <libstream.h>
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#define ISO9660_EXTENT_SIZE (2048)
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typedef struct iso9660_VOLUME {
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int ucs_level;
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struct iso_primary_descriptor *descriptor;
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device_io_t *device;
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} iso9660_VOLUME;
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typedef struct iso9660_DIR {
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iso9660_VOLUME *volume;
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int extent;
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int len;
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int index;
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unsigned char buffer[ISO9660_EXTENT_SIZE];
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} iso9660_DIR;
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typedef struct iso9660_FILE {
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iso9660_VOLUME *volume;
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int base; /* first extent of the file */
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int size; /* size of the file */
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int offset;
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int current;
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unsigned char buffer[ISO9660_EXTENT_SIZE];
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} iso9660_FILE;
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static inline int isonum_721(char *p)
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{
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return ((p[0] & 0xff)
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| ((p[1] & 0xff) << 8));
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}
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static inline int isonum_723(char *p)
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{
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return (isonum_721(p));
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}
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static inline int isonum_733(char *p)
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{
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return ((p[0] & 0xff) | ((p[1] & 0xff) << 8) |
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((p[2] & 0xff) << 16) | ((p[3] & 0xff) << 24));
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}
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extern iso9660_VOLUME* iso9660_mount(device_io_t *device);
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extern int iso9660_umount(iso9660_VOLUME *volume);
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extern iso9660_DIR* iso9660_opendir(iso9660_VOLUME *, char *name);
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extern iso9660_FILE* iso9660_open(iso9660_VOLUME *, char* pathname);
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extern void iso9660_name(int ucs_level, char *buffer, struct iso_directory_record * idr);
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extern struct iso_directory_record *iso9660_get_root_node(iso9660_VOLUME* volume);
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extern int iso9660_closedir(iso9660_DIR *dir);
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extern struct iso_directory_record *iso9660_readdir(iso9660_DIR *dir);
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extern int iso9660_is_directory(struct iso_directory_record * idr);
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extern struct iso_directory_record* iso9660_get_node(iso9660_VOLUME *volume, struct iso_directory_record *dirnode, char *path);
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extern ssize_t iso9660_read(iso9660_FILE *file, void *buf, size_t count);
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extern void iso9660_close(iso9660_FILE *file);
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extern int iso9660_lseek(iso9660_FILE *file, long offset, int whence);
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extern int iso9660_fstat(iso9660_FILE *file, struct stream_stat *buf);
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#endif /* __LIBISO9660_H__ */
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