diff options
Diffstat (limited to 'sys/isofs/cd9660/cd9660_vnops.c')
| -rw-r--r-- | sys/isofs/cd9660/cd9660_vnops.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sys/isofs/cd9660/cd9660_vnops.c b/sys/isofs/cd9660/cd9660_vnops.c index 074de85..0296eca 100644 --- a/sys/isofs/cd9660/cd9660_vnops.c +++ b/sys/isofs/cd9660/cd9660_vnops.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)cd9660_vnops.c 8.3 (Berkeley) 1/23/94 - * $Id: cd9660_vnops.c,v 1.18 1995/10/31 12:13:47 phk Exp $ + * $Id: cd9660_vnops.c,v 1.19 1995/11/09 08:13:37 bde Exp $ */ #include <sys/param.h> @@ -183,6 +183,22 @@ cd9660_access(ap) struct proc *a_p; } */ *ap; { + /* + * Disallow write attempts on read-only file systems; + * unless the file is a socket, fifo, or a block or + * character device resident on the file system. + */ + if (ap->a_mode & VWRITE) { + switch (ap->a_vp->v_type) { + case VDIR: + case VLNK: + case VREG: + if (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY) + return (EROFS); + break; + } + } + return (0); } |
