/**
* read all dir entries in specified directory
* @param filp file pointer of specified directory to read
* @param dirent buffer pointer
* @param filldir function pointer which fills dir info
* @return return 0 on success, errno on failure
*/
static int rfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
{
struct dentry *dentry = filp->f_dentry;
struct inode *inode = dentry->d_inode;
struct buffer_head *bh = NULL;
struct rfs_dir_info dir_info;
unsigned int type;
loff_t pos;
int ret;
CHECK_RFS_INODE(inode, -ENOENT);
while (1) {
pos = filp->f_pos;
ret = internal_readdir(inode, &bh, (loff_t *) &filp->f_pos, &dir_info);
if (ret < 0)
break;
if (dir_info.type == TYPE_DIR)
type = DT_DIR;
else
type = DT_REG;
ret = filldir(dirent, dir_info.name, strlen(dir_info.name),
pos, dir_info.ino, type);
if (ret < 0) {
filp->f_pos = pos; /* rollback */
break;
}
}
brelse(bh);
return 0;
}
struct direct *
readdir(DIR *dirp)
{
if (internal_readdir(dirp) == NULL)
return (NULL);
/* Check for overflows */
if (dc64.d_ino > SIZE_MAX) {
errno = EOVERFLOW;
return (NULL);
}
/* Copy dirent into direct */
dc.d_ino = dc64.d_ino;
dc.d_reclen = dc64.d_reclen - 4;
dc.d_namlen = dc64.d_namlen;
(void) strcpy(dc.d_name, dc64.d_name);
return (&dc);
}
struct direct64 *
readdir64(DIR *dirp)
{
return (internal_readdir(dirp));
}