static int
rtems_rfs_rtems_mknod (const rtems_filesystem_location_info_t *parentloc,
const char *name,
size_t namelen,
mode_t mode,
dev_t dev)
{
rtems_rfs_file_system* fs = rtems_rfs_rtems_pathloc_dev (parentloc);
rtems_rfs_ino parent = rtems_rfs_rtems_get_pathloc_ino (parentloc);
rtems_rfs_ino ino;
rtems_rfs_inode_handle inode;
uid_t uid;
gid_t gid;
int rc;
uid = geteuid ();
gid = getegid ();
rc = rtems_rfs_inode_create (fs, parent, name, namelen,
rtems_rfs_rtems_imode (mode),
1, uid, gid, &ino);
if (rc > 0)
{
return rtems_rfs_rtems_error ("mknod: inode create", rc);
}
rc = rtems_rfs_inode_open (fs, ino, &inode, true);
if (rc > 0)
{
return rtems_rfs_rtems_error ("mknod: inode open", rc);
}
if (S_ISDIR(mode) || S_ISREG(mode))
{
}
else if (S_ISCHR (mode) || S_ISBLK (mode))
{
int major;
int minor;
rtems_filesystem_split_dev_t (dev, major, minor);
rtems_rfs_inode_set_block (&inode, 0, major);
rtems_rfs_inode_set_block (&inode, 1, minor);
}
else
{
rtems_rfs_inode_close (fs, &inode);
return rtems_rfs_rtems_error ("mknod: bad mode", EINVAL);
}
rc = rtems_rfs_inode_close (fs, &inode);
if (rc > 0)
{
return rtems_rfs_rtems_error ("mknod: closing inode", rc);
}
return 0;
}
int
rtems_rfs_symlink (rtems_rfs_file_system* fs,
const char* name,
int length,
const char* link,
int link_length,
uid_t uid,
gid_t gid,
rtems_rfs_ino parent)
{
rtems_rfs_inode_handle inode;
rtems_rfs_ino ino;
int rc;
if (rtems_rfs_trace (RTEMS_RFS_TRACE_SYMLINK))
{
int c;
printf ("rtems-rfs: symlink: parent:%" PRIu32 " name:", parent);
for (c = 0; c < length; c++)
printf ("%c", name[c]);
printf (" link:");
for (c = 0; c < link_length; c++)
printf ("%c", link[c]);
}
if (link_length >= rtems_rfs_fs_block_size (fs))
return ENAMETOOLONG;
rc = rtems_rfs_inode_create (fs, parent, name, strlen (name),
RTEMS_RFS_S_SYMLINK,
1, uid, gid, &ino);
if (rc > 0)
return rc;
rc = rtems_rfs_inode_open (fs, ino, &inode, true);
if (rc > 0)
return rc;
/*
* If the link length is less than the length of data union in the inode
* place the link into the data area else allocate a block and write the link
* to that.
*/
if (link_length < RTEMS_RFS_INODE_DATA_NAME_SIZE)
{
memset (inode.node->data.name, 0, RTEMS_RFS_INODE_DATA_NAME_SIZE);
memcpy (inode.node->data.name, link, link_length);
rtems_rfs_inode_set_block_count (&inode, 0);
}
else
{
rtems_rfs_block_map map;
rtems_rfs_block_no block;
rtems_rfs_buffer_handle buffer;
uint8_t* data;
rc = rtems_rfs_block_map_open (fs, &inode, &map);
if (rc > 0)
{
rtems_rfs_inode_close (fs, &inode);
return rc;
}
rc = rtems_rfs_block_map_grow (fs, &map, 1, &block);
if (rc > 0)
{
rtems_rfs_block_map_close (fs, &map);
rtems_rfs_inode_close (fs, &inode);
return rc;
}
rc = rtems_rfs_buffer_handle_open (fs, &buffer);
if (rc > 0)
{
rtems_rfs_block_map_close (fs, &map);
rtems_rfs_inode_close (fs, &inode);
return rc;
}
rc = rtems_rfs_buffer_handle_request (fs, &buffer, block, false);
if (rc > 0)
{
rtems_rfs_block_map_close (fs, &map);
rtems_rfs_inode_close (fs, &inode);
return rc;
}
data = rtems_rfs_buffer_data (&buffer);
memset (data, 0xff, rtems_rfs_fs_block_size (fs));
memcpy (data, link, link_length);
rc = rtems_rfs_buffer_handle_close (fs, &buffer);
if (rc > 0)
{
rtems_rfs_block_map_close (fs, &map);
rtems_rfs_inode_close (fs, &inode);
return rc;
}
rc = rtems_rfs_block_map_close (fs, &map);
if (rc > 0)
{
rtems_rfs_inode_close (fs, &inode);
return rc;
}
}
rtems_rfs_inode_set_block_offset (&inode, link_length);
rc = rtems_rfs_inode_close (fs, &inode);
return rc;
}
