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procfs_note.c revision 1.6 
      1 /*
      2  * Copyright (c) 1993 Jan-Simon Pendry
      3  * Copyright (c) 1993
      4  *	The Regents of the University of California.  All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * Jan-Simon Pendry.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	from: Id: procfs_note.c,v 3.2 1993/12/15 09:40:17 jsp Exp
     38  *	from: @(#)procfs_note.c	8.2 (Berkeley) 1/21/94
     39  *	$Id: procfs_note.c,v 1.6 1994/06/08 11:33:37 mycroft Exp $
     40  */
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/time.h>
     45 #include <sys/kernel.h>
     46 #include <sys/proc.h>
     47 #include <sys/vnode.h>
     48 #include <sys/signal.h>
     49 #include <miscfs/procfs/procfs.h>
     50 
     51 int
     52 procfs_donote(curp, p, pfs, uio)
     53 	struct proc *curp;
     54 	struct proc *p;
     55 	struct pfsnode *pfs;
     56 	struct uio *uio;
     57 {
     58 	int xlen;
     59 	int error;
     60 	char note[PROCFS_NOTELEN+1];
     61 
     62 	if (uio->uio_rw != UIO_WRITE)
     63 		return (EINVAL);
     64 
     65 	xlen = PROCFS_NOTELEN;
     66 	error = vfs_getuserstr(uio, note, &xlen);
     67 	if (error)
     68 		return (error);
     69 
     70 	/* send to process's notify function */
     71 	return (EOPNOTSUPP);
     72 }
     73