--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/drivers/cdrom/isoread.h	Wed Feb 10 18:16:19 2010 +1000
@@ -0,0 +1,95 @@
+/**
+ * $Id$
+ *
+ * ISO9660 filesystem reading support
+ *
+ * Copyright (c) 2010 Nathan Keynes.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+
+#ifndef cdrom_isoread_H
+#define cdrom_isoread_H 1
+
+#include "drivers/cdrom/defs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct isofs_reader_dir *isofs_reader_dir_t;
+
+typedef struct isofs_reader_dirent {
+    const char *name;
+    size_t size;
+    gboolean is_dir;
+
+    cdrom_lba_t start_lba;
+    size_t xa_size;
+    unsigned interleave_gap;
+    unsigned interleave_size;
+    isofs_reader_dir_t subdir;
+} *isofs_reader_dirent_t;
+
+/**
+ * ISO9600 filesystem reader.
+ */
+typedef struct isofs_reader *isofs_reader_t;
+
+/**
+ * Construct an isofs reader from an existing sector source. On error, returns
+ * NULL.
+ */
+isofs_reader_t isofs_reader_new_from_source( sector_source_t track, ERROR *err );
+
+/**
+ * Construct an isofs from a cdrom disc and sector position.
+ * @return a new isofs_reader, or NULL on an error (and sets err).
+ */
+isofs_reader_t isofs_reader_new_from_disc( cdrom_disc_t disc, cdrom_lba_t start_sector, ERROR *err );
+
+isofs_reader_t isofs_reader_new_from_track( cdrom_disc_t disc, cdrom_track_t track, ERROR *err );
+
+/**
+ * Destroy an isofs reader.
+ */
+void isofs_reader_destroy( isofs_reader_t reader );
+
+/**
+ * Read 0 or more 2048-byte sectors from the filesystem.
+ */
+cdrom_error_t isofs_reader_read_sectors( isofs_reader_t iso, cdrom_lba_t sector, cdrom_count_t count,
+                                         unsigned char *buf );
+
+
+/**
+ * Search the filesystem for the specific fully-qualified file.
+ * @return FALSE if the file could not be found, otherwise TRUE and the iterator
+ * is updated to point to the requested file.
+ */
+isofs_reader_dirent_t isofs_reader_get_file( isofs_reader_t iso, const char *filename );
+
+cdrom_error_t isofs_reader_read_file( isofs_reader_t iso, isofs_reader_dirent_t file,
+                                      size_t offset, size_t byte_count, unsigned char *buf );
+
+/**
+ * Print an isofs directory to the given stream (mostly for debugging purposes)
+ */
+void isofs_reader_print_dir( FILE *f, isofs_reader_dir_t dir );
+
+isofs_reader_dir_t isofs_reader_get_root_dir( isofs_reader_t iso );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !cdrom_isoread_H */