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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/hfs/attr.c
downloadlinux-2.6.34-ux500-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
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/hfs/attr.c')
-rw-r--r--fs/hfs/attr.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/fs/hfs/attr.c b/fs/hfs/attr.c
new file mode 100644
index 00000000000..e057ec542a6
--- /dev/null
+++ b/fs/hfs/attr.c
@@ -0,0 +1,121 @@
+/*
+ * linux/fs/hfs/attr.c
+ *
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Export hfs data via xattr
+ */
+
+
+#include <linux/fs.h>
+#include <linux/xattr.h>
+
+#include "hfs_fs.h"
+#include "btree.h"
+
+int hfs_setxattr(struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
+{
+ struct inode *inode = dentry->d_inode;
+ struct hfs_find_data fd;
+ hfs_cat_rec rec;
+ struct hfs_cat_file *file;
+ int res;
+
+ if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
+ return -EOPNOTSUPP;
+
+ res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
+ if (res)
+ return res;
+ fd.search_key->cat = HFS_I(inode)->cat_key;
+ res = hfs_brec_find(&fd);
+ if (res)
+ goto out;
+ hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
+ sizeof(struct hfs_cat_file));
+ file = &rec.file;
+
+ if (!strcmp(name, "hfs.type")) {
+ if (size == 4)
+ memcpy(&file->UsrWds.fdType, value, 4);
+ else
+ res = -ERANGE;
+ } else if (!strcmp(name, "hfs.creator")) {
+ if (size == 4)
+ memcpy(&file->UsrWds.fdCreator, value, 4);
+ else
+ res = -ERANGE;
+ } else
+ res = -EOPNOTSUPP;
+ if (!res)
+ hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
+ sizeof(struct hfs_cat_file));
+out:
+ hfs_find_exit(&fd);
+ return res;
+}
+
+ssize_t hfs_getxattr(struct dentry *dentry, const char *name,
+ void *value, size_t size)
+{
+ struct inode *inode = dentry->d_inode;
+ struct hfs_find_data fd;
+ hfs_cat_rec rec;
+ struct hfs_cat_file *file;
+ ssize_t res = 0;
+
+ if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
+ return -EOPNOTSUPP;
+
+ if (size) {
+ res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
+ if (res)
+ return res;
+ fd.search_key->cat = HFS_I(inode)->cat_key;
+ res = hfs_brec_find(&fd);
+ if (res)
+ goto out;
+ hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
+ sizeof(struct hfs_cat_file));
+ }
+ file = &rec.file;
+
+ if (!strcmp(name, "hfs.type")) {
+ if (size >= 4) {
+ memcpy(value, &file->UsrWds.fdType, 4);
+ res = 4;
+ } else
+ res = size ? -ERANGE : 4;
+ } else if (!strcmp(name, "hfs.creator")) {
+ if (size >= 4) {
+ memcpy(value, &file->UsrWds.fdCreator, 4);
+ res = 4;
+ } else
+ res = size ? -ERANGE : 4;
+ } else
+ res = -ENODATA;
+out:
+ if (size)
+ hfs_find_exit(&fd);
+ return res;
+}
+
+#define HFS_ATTRLIST_SIZE (sizeof("hfs.creator")+sizeof("hfs.type"))
+
+ssize_t hfs_listxattr(struct dentry *dentry, char *buffer, size_t size)
+{
+ struct inode *inode = dentry->d_inode;
+
+ if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
+ return -EOPNOTSUPP;
+
+ if (!buffer || !size)
+ return HFS_ATTRLIST_SIZE;
+ if (size < HFS_ATTRLIST_SIZE)
+ return -ERANGE;
+ strcpy(buffer, "hfs.type");
+ strcpy(buffer + sizeof("hfs.type"), "hfs.creator");
+
+ return HFS_ATTRLIST_SIZE;
+}