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Use fo_stat() rather than duplicating knowledge of file type internals

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in here for stat(2) and friends.  Update the badops entries accordingly.
This commit is contained in:
Peter Wemm 1999-11-08 03:27:14 +00:00
parent a2eec8ee15
commit cf87559cab
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=52982
1 changed files with 16 additions and 59 deletions
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75
sys/kern/kern_descrip.c
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@ -95,7 +95,9 @@ static int badfo_ioctl __P((struct file *fp, u_long com, caddr_t data,
struct proc *p)); struct proc *p));
static int badfo_poll __P((struct file *fp, int events, static int badfo_poll __P((struct file *fp, int events,
struct ucred *cred, struct proc *p)); struct ucred *cred, struct proc *p));
static int badfo_stat __P((struct file *fp, struct stat *sb, struct proc *p));
static int badfo_close __P((struct file *fp, struct proc *p)); static int badfo_close __P((struct file *fp, struct proc *p));
/* /*
* Descriptor management. * Descriptor management.
*/ */
@ -538,25 +540,7 @@ ofstat(p, uap)
if ((unsigned)uap->fd >= fdp->fd_nfiles || if ((unsigned)uap->fd >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[uap->fd]) == NULL) (fp = fdp->fd_ofiles[uap->fd]) == NULL)
return (EBADF); return (EBADF);
switch (fp->f_type) { error = fo_stat(fp, &ub, p);
case DTYPE_FIFO:
case DTYPE_VNODE:
error = vn_stat((struct vnode *)fp->f_data, &ub, p);
break;
case DTYPE_SOCKET:
error = soo_stat((struct socket *)fp->f_data, &ub);
break;
case DTYPE_PIPE:
error = pipe_stat((struct pipe *)fp->f_data, &ub);
break;
default:
panic("ofstat");
/*NOTREACHED*/
}
cvtstat(&ub, &oub); cvtstat(&ub, &oub);
if (error == 0) if (error == 0)
error = copyout((caddr_t)&oub, (caddr_t)uap->sb, sizeof (oub)); error = copyout((caddr_t)&oub, (caddr_t)uap->sb, sizeof (oub));
@ -587,25 +571,7 @@ fstat(p, uap)
if ((unsigned)uap->fd >= fdp->fd_nfiles || if ((unsigned)uap->fd >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[uap->fd]) == NULL) (fp = fdp->fd_ofiles[uap->fd]) == NULL)
return (EBADF); return (EBADF);
switch (fp->f_type) { error = fo_stat(fp, &ub, p);
case DTYPE_FIFO:
case DTYPE_VNODE:
error = vn_stat((struct vnode *)fp->f_data, &ub, p);
break;
case DTYPE_SOCKET:
error = soo_stat((struct socket *)fp->f_data, &ub);
break;
case DTYPE_PIPE:
error = pipe_stat((struct pipe *)fp->f_data, &ub);
break;
default:
panic("fstat");
/*NOTREACHED*/
}
if (error == 0) if (error == 0)
error = copyout((caddr_t)&ub, (caddr_t)uap->sb, sizeof (ub)); error = copyout((caddr_t)&ub, (caddr_t)uap->sb, sizeof (ub));
return (error); return (error);
@ -635,25 +601,7 @@ nfstat(p, uap)
if ((unsigned)uap->fd >= fdp->fd_nfiles || if ((unsigned)uap->fd >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[uap->fd]) == NULL) (fp = fdp->fd_ofiles[uap->fd]) == NULL)
return (EBADF); return (EBADF);
switch (fp->f_type) { error = fo_stat(fp, &ub, p);
case DTYPE_FIFO:
case DTYPE_VNODE:
error = vn_stat((struct vnode *)fp->f_data, &ub, p);
break;
case DTYPE_SOCKET:
error = soo_stat((struct socket *)fp->f_data, &ub);
break;
case DTYPE_PIPE:
error = pipe_stat((struct pipe *)fp->f_data, &ub);
break;
default:
panic("fstat");
/*NOTREACHED*/
}
if (error == 0) { if (error == 0) {
cvtnstat(&ub, &nub); cvtnstat(&ub, &nub);
error = copyout((caddr_t)&nub, (caddr_t)uap->sb, sizeof (nub)); error = copyout((caddr_t)&nub, (caddr_t)uap->sb, sizeof (nub));
@ -1314,6 +1262,7 @@ struct fileops badfileops = {
badfo_readwrite, badfo_readwrite,
badfo_ioctl, badfo_ioctl,
badfo_poll, badfo_poll,
badfo_stat,
badfo_close badfo_close
}; };
@ -1351,6 +1300,16 @@ badfo_poll(fp, events, cred, p)
return (0); return (0);
} }
static int
badfo_stat(fp, sb, p)
struct file *fp;
struct stat *sb;
struct proc *p;
{
return (EBADF);
}
static int static int
badfo_close(fp, p) badfo_close(fp, p)
struct file *fp; struct file *fp;
@ -1362,5 +1321,3 @@ badfo_close(fp, p)
SYSINIT(fildescdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, SYSINIT(fildescdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,
fildesc_drvinit,NULL) fildesc_drvinit,NULL)