client.h

   1 /*
   2  * Copyright (C) 1997-2006 Andre Noll <maan@systemlinux.org>
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     This program is distributed in the hope that it will be useful,
  10  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *     GNU General Public License for more details.
  13  *
  14  *     You should have received a copy of the GNU General Public License
  15  *     along with this program; if not, write to the Free Software
  16  *     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  17  */
  18
  19 /** \file client.h common client functions and exported symbols from client_common.c */
  20
  21 #include <openssl/rc4.h>
  22 enum {
  23         CL_CONNECTED,
  24         CL_RECEIVED_WELCOME,
  25         CL_SENT_AUTH,
  26         CL_RECEIVED_CHALLENGE,
  27         CL_SENT_CH_RESPONSE,
  28         CL_RECEIVED_PROCEED,
  29         CL_SENT_COMMAND,
  30         CL_SENDING_STDIN,
  31         CL_RECEIVING_SERVER_OUTPUT
  32 };
  33
  34 #define CLIENT_BUFSIZE 8192
  35
  36 struct private_client_data {
  37         int status;
  38         int fd;
  39         struct client_args_info conf;
  40         char *config_file;
  41         char *key_file;
  42         char *user;
  43         RC4_KEY rc4_recv_key;
  44         RC4_KEY rc4_send_key;
  45         struct task task;
  46         int eof;
  47         char buf[CLIENT_BUFSIZE];
  48         size_t loaded;
  49         int check_r;
  50         int check_w;
  51         long unsigned challenge_nr;
  52         /* only used if stdin gets sent to para_server */
  53         char *inbuf;
  54         size_t *in_loaded;
  55         int *in_eof;
  56 };
  57
  58 int client_open(struct private_client_data *pcd);
  59 void client_close(struct private_client_data *pcd);
  60 int client_parse_config(int argc, char *argv[],
  61         struct private_client_data **pcd_ptr);
  62 void client_pre_select(struct sched *s, struct task *t);
  63 void client_post_select(struct sched *s, struct task *t);