patch-2.4.20 linux-2.4.20/fs/befs/attribute.c
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- 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)
+{
+
+}
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