Added directory support to the Apple2 cfs.
diff --git a/contiki-apple2/lib/cfs.c b/contiki-apple2/lib/cfs.c
new file mode 100644
index 0000000..0b861b4
--- /dev/null
+++ b/contiki-apple2/lib/cfs.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: cfs.c,v 1.1 2005/04/18 21:41:07 oliverschmidt Exp $
+ */
+
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "contiki.h"
+
+#include "cfs.h"
+
+
+static char cwd[FILENAME_MAX+1];
+
+/*---------------------------------------------------------------------------*/
+int
+cfs_opendir(struct cfs_dir *dirp, const char *name)
+{
+ char *openname = strcmp(name, "/") ? (char *)name : getcwd(cwd, sizeof(cwd));
+
+ if((dirp->fd = cfs_open(openname, CFS_READ)) != -1) {
+ if(cfs_read(dirp->fd,
+ dirp->block.bytes,
+ sizeof(dirp->block)) == sizeof(dirp->block)) {
+ dirp->entry_length = dirp->block.bytes[0x23];
+ dirp->entries_per_block = dirp->block.bytes[0x24];
+ dirp->current_entry = 1;
+ return 0;
+ }
+ cfs_close(dirp->fd);
+ }
+ return -1;
+}
+/*---------------------------------------------------------------------------*/
+int
+cfs_readdir(struct cfs_dir *dirp, struct cfs_dirent *dirent)
+{
+ char* entry;
+
+ do {
+ if(dirp->current_entry == dirp->entries_per_block) {
+ if(cfs_read(dirp->fd,
+ dirp->block.bytes,
+ sizeof(dirp->block)) != sizeof(dirp->block)) {
+ return -1;
+ }
+ dirp->current_entry = 0;
+ }
+ entry = dirp->block.content.entries +
+ dirp->current_entry * dirp->entry_length;
+ ++dirp->current_entry;
+ } while (entry[0x00] == 0);
+
+ entry[0x01 + (entry[0x00] & 15)] = '\0';
+ strcpy(dirent->name, &entry[0x01]);
+ dirent->size = *(unsigned int *)&entry[0x13];
+ return 0;
+}
+/*---------------------------------------------------------------------------*/
+int
+cfs_closedir(struct cfs_dir *dirp)
+{
+ return cfs_close(dirp->fd);
+}
+/*---------------------------------------------------------------------------*/