mdw@git.distorted.org.uk Git - fwd/blob - privconn.h

   1 /* -*-c-*-
   2  *
   3  * Making privileged connections
   4  *
   5  * (c) 2003 Straylight/Edgeware
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This file is part of the `fw' port forwarder.
  11  *
  12  * `fw' is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * `fw' is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with `fw'; if not, write to the Free Software Foundation,
  24  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  */
  26
  27 #ifndef PRIVCONN_H
  28 #define PRIVCONN_H
  29
  30 #ifdef __cplusplus
  31   extern "C" {
  32 #endif
  33
  34 /*----- Header files ------------------------------------------------------*/
  35
  36 #include <arpa/inet.h>
  37
  38 #include <mLib/conn.h>
  39 #include <mLib/sel.h>
  40
  41 /*----- Functions provided ------------------------------------------------*/
  42
  43 /* --- @privconn_split@ --- *
  44  *
  45  * Arguments:   @sel_state *s@ = select state
  46  *
  47  * Returns:     ---
  48  *
  49  * Use:         Splits off the privileged binding code into a separate
  50  *              process.
  51  */
  52
  53 extern void privconn_split(sel_state */*s*/);
  54
  55 /* --- @privconn_adddest@ --- *
  56  *
  57  * Arguments:   @struct in_addr peer@ = address to connect to
  58  *              @unsigned port@ = port to connect to
  59  *
  60  * Returns:     Index for this destination address, or @-1@ if not
  61  *              available.
  62  *
  63  * Use:         Adds a valid destination for a privileged connection.
  64  */
  65
  66 extern int privconn_adddest(struct in_addr /*peer*/, unsigned /*port*/);
  67
  68 /* --- @privconn_connect@ --- *
  69  *
  70  * Arguments:   @conn *c@ = connection structure to fill in
  71  *              @sel_state *s@ = pointer to select state to attach to
  72  *              @int i@ = address index to connect to
  73  *              @struct in_addr bind@ = address to bind to
  74  *              @void (*func)(int, void *)@ = function to call on connect
  75  *              @void *p@ = argument for the function
  76  *
  77  * Returns:     Zero on success, @-1@ on failure.
  78  *
  79  * Use:         Sets up a privileged connection job.
  80  */
  81
  82 extern int privconn_connect(conn */*c*/, sel_state */*s*/,
  83                             int /*i*/, struct in_addr /*bind*/,
  84                             void (*/*func*/)(int, void *), void */*p*/);
  85
  86 /*----- That's all, folks -------------------------------------------------*/
  87
  88 #ifdef __cplusplus
  89   }
  90 #endif
  91
  92 #endif