diff options
Diffstat (limited to 'sys/compat/linux/linux_ioctl.c')
| -rw-r--r-- | sys/compat/linux/linux_ioctl.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/sys/compat/linux/linux_ioctl.c b/sys/compat/linux/linux_ioctl.c index 7a14569..a7be854 100644 --- a/sys/compat/linux/linux_ioctl.c +++ b/sys/compat/linux/linux_ioctl.c @@ -1546,16 +1546,26 @@ linux_ioctl_cdrom(struct thread *td, struct linux_ioctl_args *args) struct ioc_read_subchannel bsdsc; struct cd_sub_channel_info bsdinfo; + error = copyin((void *)args->arg, &sc, sizeof(sc)); + if (error) + break; + + /* + * Invoke the native ioctl and bounce the returned data through + * the userspace buffer. This works because the Linux structure + * is the same size as our structures for the subchannel header + * and position data. + */ bsdsc.address_format = CD_LBA_FORMAT; bsdsc.data_format = CD_CURRENT_POSITION; bsdsc.track = 0; - bsdsc.data_len = sizeof(bsdinfo); - bsdsc.data = &bsdinfo; - error = fo_ioctl(fp, CDIOCREADSUBCHANNEL_SYSSPACE, - (caddr_t)&bsdsc, td->td_ucred, td); + bsdsc.data_len = sizeof(sc); + bsdsc.data = (void *)args->arg; + error = fo_ioctl(fp, CDIOCREADSUBCHANNEL, (caddr_t)&bsdsc, + td->td_ucred, td); if (error) break; - error = copyin((void *)args->arg, &sc, sizeof(sc)); + error = copyin((void *)args->arg, &bsdinfo, sizeof(bsdinfo)); if (error) break; sc.cdsc_audiostatus = bsdinfo.header.audio_status; |
