patch-2.4.20 linux-2.4.20/fs/befs/attribute.c

• Lines: 118
• Date: Thu Nov 28 15:53:15 2002
• Orig file: linux-2.4.19/fs/befs/attribute.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.19/fs/befs/attribute.c linux-2.4.20/fs/befs/attribute.c
@@ -0,0 +1,117 @@
+/*
+ * linux/fs/befs/attribute.c
+ *
+ * Copyright (C) 2002 Will Dyson <will_dyson@pobox.com>
+ *
+ * Many thanks to Dominic Giampaolo, author of "Practical File System
+ * Design with the Be File System", for such a helpful book.
+ *
+ */
+
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+#include "befs_fs.h"
+#include "endian.h"
+
+#define SD_DATA(sd)\
+	(void*)((char*)sd + sizeof(*sd) + (sd->name_size - sizeof(sd->name)))
+
+#define SD_NEXT(sd)\
+	(befs_small_data*)((char*)sd + sizeof(*sd) + (sd->name_size - \
+	sizeof(sd->name) + sd->data_size))
+
+int
+ list_small_data(struct super_block *sb, befs_inode * inode, filldir_t filldir);
+
+befs_small_data *find_small_data(struct super_block *sb, befs_inode * inode,
+				 const char *name);
+
+int
+ read_small_data(struct super_block *sb, befs_inode * inode,
+		 befs_small_data * sdata, void *buf, size_t bufsize);
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+befs_small_data *
+find_small_data(struct super_block *sb, befs_inode * inode, const char *name)
+{
+	befs_small_data *sdata = inode->small_data;
+
+	while (sdata->type != 0) {
+		if (strcmp(name, sdata->name) != 0) {
+			return sdata;
+		}
+		sdata = SD_NEXT(sdata);
+	}
+	return NULL;
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+read_small_data(struct super_block *sb, befs_inode * inode,
+		const char *name, void *buf, size_t bufsize)
+{
+	befs_small_data *sdata;
+
+	sdata = find_small_data(sb, inode, name);
+	if (sdata == NULL)
+		return BEFS_ERR;
+	else if (sdata->data_size > bufsize)
+		return BEFS_ERR;
+
+	memcpy(buf, SD_DATA(sdata), sdata->data_size);
+
+	return BEFS_OK;
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+list_small_data(struct super_block *sb, befs_inode * inode)
+{
+
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+list_attr(struct super_block *sb, befs_inode * inode)
+{
+
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+read_attr(struct super_block *sb, befs_inode * inode)
+{
+
+}