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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/befs/attribute.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'fs/befs/attribute.c')
-rw-r--r--fs/befs/attribute.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/fs/befs/attribute.c b/fs/befs/attribute.c
new file mode 100644
index 00000000000..e329d727053
--- /dev/null
+++ b/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.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)
+{
+
+}