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Allow changing the length of devices and fifos on the readonly 9660 fs.

This commit is contained in:
ws 1996-09-30 15:52:00 +00:00
parent f3c7374317
commit 7299885617
1 changed files with 48 additions and 2 deletions
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50
sys/isofs/cd9660/cd9660_vnops.c
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@ -1,4 +1,4 @@
/* $NetBSD: cd9660_vnops.c,v 1.34 1996/09/07 12:40:57 mycroft Exp $ */
/* $NetBSD: cd9660_vnops.c,v 1.35 1996/09/30 15:52:00 ws Exp $ */
/*-
* Copyright (c) 1994
@ -898,12 +898,58 @@ cd9660_pathconf(v)
/* NOTREACHED */
}
/*
* Allow changing the size for special files (and fifos).
*/
int
cd9660_setattr(v)
void *v;
{
struct vop_setattr_args /* {
struct vnode *a_vp;
struct vattr *a_vap;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap = v;
struct vattr *vap = ap->a_vap;
struct vnode *vp = ap->a_vp;
/*
* Only size is changeable.
*/
if (vap->va_type != VNON
|| vap->va_nlink != VNOVAL
|| vap->va_fsid != VNOVAL
|| vap->va_fileid != VNOVAL
|| vap->va_blocksize != VNOVAL
|| vap->va_rdev != VNOVAL
|| (int)vap->va_bytes != VNOVAL
|| vap->va_gen != VNOVAL
|| vap->va_flags != VNOVAL
|| vap->va_uid != (uid_t)VNOVAL
|| vap->va_gid != (gid_t)VNOVAL
|| vap->va_atime.tv_sec != VNOVAL
|| vap->va_mtime.tv_sec != VNOVAL
|| vap->va_mode != (mode_t)VNOVAL)
return EOPNOTSUPP;
if (vap->va_size != VNOVAL
&& vp->v_type != VCHR
&& vp->v_type != VBLK
#ifdef FIFO
&& vp->v_type != VFIFO
#endif
)
return EOPNOTSUPP;
return VOP_TRUNCATE(vp, vap->va_size, 0, ap->a_cred, ap->a_p);
}
/*
* Global vfs data structures for isofs
*/
#define cd9660_create genfs_eopnotsupp
#define cd9660_mknod genfs_eopnotsupp
#define cd9660_setattr genfs_eopnotsupp
#define cd9660_write genfs_eopnotsupp
#ifdef NFSSERVER
int lease_check __P((void *));