servlink/servlink.h

   1 /************************************************************************
   2  *   IRC - Internet Relay Chat, servlink/servlink.h
   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 1, or (at your option)
   7  *   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., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  *
  18  *   $Id: servlink.h 1285 2006-05-05 15:03:53Z nenolod $
  19  */
  20
  21 #ifndef INCLUDED_servlink_servlink_h
  22 #define INCLUDED_servlink_servlink_h
  23
  24 #include "setup.h"
  25
  26 #ifdef HAVE_LIBZ
  27 #include <zlib.h>
  28 #endif
  29
  30 /* do not use stdin/out/err, as it seems to break on solaris */
  31 #define CONTROL               fds[0]
  32 #define LOCAL                 fds[1]
  33 #define REMOTE                 fds[2]
  34
  35 #undef  SERVLINK_DEBUG
  36
  37 #define READLEN                  16384
  38
  39 #ifdef HAVE_LIBZ
  40 #define BUFLEN                   READLEN * 6    /* allow for decompression */
  41 #else
  42 #define BUFLEN                   READLEN
  43 #endif
  44
  45
  46 #ifdef HAVE_LIBZ
  47 struct zip_state
  48 {
  49         z_stream z_stream;
  50         int level;              /* compression level */
  51 };
  52 #endif
  53
  54 struct slink_state
  55 {
  56         unsigned int crypt:1;
  57         unsigned int zip:1;
  58         unsigned int active:1;
  59
  60         unsigned char buf[BUFLEN * 2];
  61         unsigned int ofs;
  62         unsigned int len;
  63
  64 #ifdef HAVE_LIBZ
  65         struct zip_state zip_state;
  66 #endif
  67 };
  68
  69
  70 typedef void (io_callback) (void);
  71
  72 struct fd_table
  73 {
  74         int fd;
  75         io_callback *read_cb;
  76         io_callback *write_cb;
  77 };
  78
  79 extern struct slink_state in_state;
  80 extern struct slink_state out_state;
  81 extern struct fd_table fds[3];
  82
  83 #endif /* INCLUDED_servlink_servlink_h */