mirror of
https://github.com/matrix-construct/construct
synced 2024-11-27 01:02:46 +01:00
212380e3f4
+ branches/release-2.1 -> 2.2 base + 3.0 -> branches/cxxconversion + backport some immediate 3.0 functionality for 2.2 + other stuff
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/************************************************************************
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* IRC - Internet Relay Chat, servlink/servlink.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: control.c 1285 2006-05-05 15:03:53Z nenolod $
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*/
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#include "setup.h"
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#include <sys/types.h>
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#include <assert.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#ifdef HAVE_LIBZ
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#include <zlib.h>
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#endif
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#include "servlink.h"
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#include "io.h"
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#include "control.h"
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static cmd_handler cmd_set_zip_out_level;
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static cmd_handler cmd_start_zip_out;
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static cmd_handler cmd_start_zip_in;
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static cmd_handler cmd_init;
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struct command_def command_table[] = {
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{CMD_SET_ZIP_OUT_LEVEL, cmd_set_zip_out_level, COMMAND_FLAG_DATA},
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{CMD_START_ZIP_OUT, cmd_start_zip_out, 0},
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{CMD_START_ZIP_IN, cmd_start_zip_in, 0},
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{CMD_INJECT_RECVQ, process_recvq, COMMAND_FLAG_DATA},
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{CMD_INJECT_SENDQ, process_sendq, COMMAND_FLAG_DATA},
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{CMD_INIT, cmd_init, 0},
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{CMD_ZIPSTATS, send_zipstats, 0},
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{0, 0, 0}
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};
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void
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cmd_set_zip_out_level(struct ctrl_command *cmd)
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{
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#ifdef HAVE_LIBZ
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out_state.zip_state.level = *cmd->data;
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if((out_state.zip_state.level < -1) || (out_state.zip_state.level > 9))
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send_error("invalid compression level %d", out_state.zip_state.level);
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#else
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send_error("can't set compression level - no libz support!");
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#endif
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}
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void
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cmd_start_zip_out(struct ctrl_command *cmd)
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{
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#ifdef HAVE_LIBZ
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int ret;
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if(out_state.zip)
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send_error("can't start compression - already started!");
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out_state.zip_state.z_stream.total_in = 0;
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out_state.zip_state.z_stream.total_out = 0;
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out_state.zip_state.z_stream.zalloc = (alloc_func) 0;
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out_state.zip_state.z_stream.zfree = (free_func) 0;
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out_state.zip_state.z_stream.data_type = Z_ASCII;
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if(out_state.zip_state.level <= 0)
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out_state.zip_state.level = Z_DEFAULT_COMPRESSION;
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if((ret = deflateInit(&out_state.zip_state.z_stream, out_state.zip_state.level)) != Z_OK)
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send_error("deflateInit failed: %s", zError(ret));
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out_state.zip = 1;
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#else
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send_error("can't start compression - no libz support!");
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#endif
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}
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void
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cmd_start_zip_in(struct ctrl_command *cmd)
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{
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#ifdef HAVE_LIBZ
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int ret;
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if(in_state.zip)
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send_error("can't start decompression - already started!");
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in_state.zip_state.z_stream.total_in = 0;
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in_state.zip_state.z_stream.total_out = 0;
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in_state.zip_state.z_stream.zalloc = (alloc_func) 0;
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in_state.zip_state.z_stream.zfree = (free_func) 0;
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in_state.zip_state.z_stream.data_type = Z_ASCII;
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if((ret = inflateInit(&in_state.zip_state.z_stream)) != Z_OK)
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send_error("inflateInit failed: %s", zError(ret));
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in_state.zip = 1;
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#else
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send_error("can't start decompression - no libz support!");
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#endif
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}
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void
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cmd_init(struct ctrl_command *cmd)
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{
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if(in_state.active || out_state.active)
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send_error("CMD_INIT sent twice!");
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in_state.active = 1;
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out_state.active = 1;
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CONTROL.read_cb = read_ctrl;
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CONTROL.write_cb = NULL;
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LOCAL.read_cb = read_data;
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LOCAL.write_cb = NULL;
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REMOTE.read_cb = read_net;
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REMOTE.write_cb = NULL;
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}
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