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Annotation of sys/miscfs/procfs/procfs_note.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: procfs_note.c,v 1.4 2007/06/18 08:30:07 jasper Exp $  */
        !             2: /*     $NetBSD: procfs_note.c,v 1.8 1994/06/29 06:34:53 cgd Exp $      */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1993 Jan-Simon Pendry
        !             6:  * Copyright (c) 1993
        !             7:  *     The Regents of the University of California.  All rights reserved.
        !             8:  *
        !             9:  * This code is derived from software contributed to Berkeley by
        !            10:  * Jan-Simon Pendry.
        !            11:  *
        !            12:  * Redistribution and use in source and binary forms, with or without
        !            13:  * modification, are permitted provided that the following conditions
        !            14:  * are met:
        !            15:  * 1. Redistributions of source code must retain the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer.
        !            17:  * 2. Redistributions in binary form must reproduce the above copyright
        !            18:  *    notice, this list of conditions and the following disclaimer in the
        !            19:  *    documentation and/or other materials provided with the distribution.
        !            20:  * 3. Neither the name of the University nor the names of its contributors
        !            21:  *    may be used to endorse or promote products derived from this software
        !            22:  *    without specific prior written permission.
        !            23:  *
        !            24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            34:  * SUCH DAMAGE.
        !            35:  *
        !            36:  *     @(#)procfs_note.c       8.2 (Berkeley) 1/21/94
        !            37:  */
        !            38:
        !            39: #include <sys/param.h>
        !            40: #include <sys/systm.h>
        !            41: #include <sys/time.h>
        !            42: #include <sys/kernel.h>
        !            43: #include <sys/proc.h>
        !            44: #include <sys/vnode.h>
        !            45: #include <sys/signal.h>
        !            46: #include <miscfs/procfs/procfs.h>
        !            47:
        !            48: int
        !            49: procfs_donote(struct proc *curp, struct proc *p, struct pfsnode *pfs, struct uio *uio)
        !            50: {
        !            51:        int xlen;
        !            52:        int error;
        !            53:        char note[PROCFS_NOTELEN+1];
        !            54:
        !            55:        if (uio->uio_rw != UIO_WRITE)
        !            56:                return (EINVAL);
        !            57:
        !            58:        xlen = PROCFS_NOTELEN;
        !            59:        error = vfs_getuserstr(uio, note, &xlen);
        !            60:        if (error)
        !            61:                return (error);
        !            62:
        !            63:        /* send to process's notify function */
        !            64:        return (EOPNOTSUPP);
        !            65: }