From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-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! --- fs/hfs/attr.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) create mode 100644 fs/hfs/attr.c (limited to 'fs/hfs/attr.c') 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 + * + * Export hfs data via xattr + */ + + +#include +#include + +#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; +} -- cgit v1.2.3