3 * (c) 2005-2009 Laurent Vivier <Laurent@vivier.eu>
5 * This file has been copied from EMILE, http://emile.sf.net
9 #include "libiso9660.h"
11 static inline int iso9660_is_directory(struct iso_directory_record * idr)
13 return ((idr->flags[0] & 2) != 0);
16 static iso9660_DIR* iso9660_opendir_node(iso9660_VOLUME *volume, struct iso_directory_record *node)
20 dir = (iso9660_DIR*)malloc(sizeof(iso9660_DIR));
24 dir->extent = isonum_733((char *)node->extent);
25 dir->len = isonum_733((char *)node->size);
26 dir->index = sizeof (dir->buffer);
32 static struct iso_directory_record* idr_new(struct iso_directory_record* idr)
34 struct iso_directory_record* result;
35 int size = sizeof(*idr) + (int)idr->name_len[0];
37 result = (struct iso_directory_record*)malloc(size);
38 memcpy(result, idr, size);
43 static struct iso_directory_record * seek_name(iso9660_VOLUME *volume,
44 struct iso_directory_record *idr,
47 struct iso_directory_record *result;
51 dir = iso9660_opendir_node(volume, idr);
55 while ((idr = iso9660_readdir(dir)) != NULL)
57 iso9660_name(volume, idr, name_buf);
58 if (strcasecmp(name, name_buf) == 0)
60 result = idr_new(idr);
61 iso9660_closedir(dir);
65 iso9660_closedir(dir);
69 struct iso_directory_record* iso9660_get_node(
70 iso9660_VOLUME *volume,
71 struct iso_directory_record *dirnode,
74 struct iso_directory_record* result;
75 struct iso_directory_record* current;
79 current = idr_new(dirnode);
84 while (*path && *path == '\\')
90 /* extract first path component */
93 while (*path && *path != '\\')
97 /* seek first component in current directory */
99 result = seek_name(volume, current, name);
109 iso9660_DIR* iso9660_opendir(iso9660_VOLUME *volume, const char *name)
112 struct iso_directory_record *node;
114 node = iso9660_get_root_node((iso9660_VOLUME*)volume);
118 node = iso9660_get_node((iso9660_VOLUME*)volume, node, name);
121 if (!iso9660_is_directory(node)) {
126 dir = iso9660_opendir_node((iso9660_VOLUME*)volume, node);
130 dir->volume = (iso9660_VOLUME*)volume;