int
compat_30_netbsd32_getdents(struct lwp *l, const struct compat_30_netbsd32_getdents_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(netbsd32_charp) buf;
syscallarg(netbsd32_size_t) count;
} */
file_t *fp;
int error, done;
char *buf;
netbsd32_size_t count;
/* Limit the size on any kernel buffers used by VOP_READDIR */
count = min(MAXBSIZE, SCARG(uap, count));
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return (error);
if ((fp->f_flag & FREAD) == 0) {
error = EBADF;
goto out;
}
buf = kmem_alloc(count, KM_SLEEP);
error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0);
if (error == 0) {
*retval = netbsd32_to_dirent12(buf, done);
error = copyout(buf, SCARG_P32(uap, buf), *retval);
}
kmem_free(buf, count);
out:
fd_putfile(SCARG(uap, fd));
return (error);
}
/*
* Read a block of directory entries in a file system independent format.
*/
int
compat_12_sys_getdirentries(struct lwp *l, const struct compat_12_sys_getdirentries_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(char *) buf;
syscallarg(u_int) count;
syscallarg(long *) basep;
} */
struct file *fp;
int error, done;
long loff;
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return error;
if ((fp->f_flag & FREAD) == 0) {
error = EBADF;
goto out;
}
loff = fp->f_offset;
error = vn_readdir(fp, SCARG(uap, buf), UIO_USERSPACE,
SCARG(uap, count), &done, l, 0, 0);
error = copyout(&loff, SCARG(uap, basep), sizeof(long));
*retval = done;
out:
fd_putfile(SCARG(uap, fd));
return error;
}
