sbin/dhclient/privsep.h

   1 /*      $OpenBSD: privsep.h,v 1.2 2004/05/04 18:51:18 henning Exp $ */
   2
   3 /*
   4  * Copyright (c) 2004 Henning Brauer <henning@openbsd.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
  15  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  16  * OF OR IN CONNECTION WITH THE USE, ABUSE OR PERFORMANCE OF THIS SOFTWARE.
  17  *
  18  * $FreeBSD$
  19  */
  20
  21 #include <sys/types.h>
  22
  23 #include <poll.h>
  24 #include <pwd.h>
  25
  26 struct buf {
  27         u_char                  *buf;
  28         size_t                   size;
  29         size_t                   wpos;
  30         size_t                   rpos;
  31 };
  32
  33 enum imsg_code {
  34         IMSG_NONE,
  35         IMSG_SCRIPT_INIT,
  36         IMSG_SCRIPT_WRITE_PARAMS,
  37         IMSG_SCRIPT_GO,
  38         IMSG_SCRIPT_GO_RET,
  39         IMSG_SEND_PACKET
  40 };
  41
  42 struct imsg_hdr {
  43         enum imsg_code  code;
  44         size_t          len;
  45 };
  46
  47 struct buf      *buf_open(size_t);
  48 int              buf_add(struct buf *, void *, size_t);
  49 int              buf_close(int, struct buf *);
  50 ssize_t          buf_read(int sock, void *, size_t);