lib/libkcore/kcore_tty.c

   1 /*
   2  * Copyright (c) 2004 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Joerg Sonnenberger <joerg@bec.de>.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/lib/libkcore/kcore_tty.c,v 1.1 2004/12/22 11:01:49 joerg Exp $
  35  */
  36
  37 #include <sys/kinfo.h>
  38 #include <sys/param.h>
  39
  40 #include <err.h>
  41 #include <errno.h>
  42 #include <kcore.h>
  43 #include <kvm.h>
  44 #include <nlist.h>
  45
  46 #include "kcore_private.h"
  47
  48 int
  49 kcore_get_tty_tk_nin(struct kcore_data *kc, uint64_t *tk_nin)
  50 {
  51         static struct nlist nl[] = {
  52                 { "_tk_nin", 0, 0, 0, 0},
  53                 { NULL, 0, 0, 0, 0}
  54         };
  55
  56         return(kcore_get_generic(kc, nl, tk_nin, sizeof(*tk_nin)));
  57 }
  58
  59 int
  60 kcore_get_tty_tk_nout(struct kcore_data *kc, uint64_t *tk_nout)
  61 {
  62         static struct nlist nl[] = {
  63                 { "_tk_nout", 0, 0, 0, 0},
  64                 { NULL, 0, 0, 0, 0}
  65         };
  66
  67         return(kcore_get_generic(kc, nl, tk_nout, sizeof(*tk_nout)));
  68 }