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/*
This file is part of QuasselC.
QuasselC is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.
QuasselC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with QuasselC. If not, see <http://www.gnu.org/licenses/>.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <iconv.h>
#include <zlib.h>
#include "quasselc.h"
#include "export.h"
int useCompression = 0;
//Copy paste from irssi's write_io
int write_io(GIOChannel *handle, const char* data, int len) {
gsize ret;
GIOStatus status;
GError *err = NULL;
g_return_val_if_fail(handle != NULL, -1);
g_return_val_if_fail(data != NULL, -1);
if(useCompression) {
static void* ZBuf;
static int ZBuf_size;
static z_stream ZOutStream;
static int enabled;
if(!enabled) {
if(deflateInit(&ZOutStream, 9)) {
fprintf(stderr, "deflateInit failed\n");
exit(1);
}
enabled = 1;
}
if(!ZBuf) {
ZBuf = malloc(1024);
ZBuf_size = 1024;
}
while(1) {
ZOutStream.avail_out = ZBuf_size;
ZOutStream.next_out = ZBuf;
ZOutStream.avail_in = len;
ZOutStream.next_in = (uint8_t*)data;
int ret = deflate(&ZOutStream, Z_SYNC_FLUSH);
if(ret) {
fprintf(stderr, "deflate failed: %d\n", ret);
exit(1);
}
if(ZOutStream.avail_out != 0) {
len = ZBuf_size - ZOutStream.avail_out;
break;
}
ZBuf = realloc(ZBuf, ZBuf_size+1024);
ZBuf_size+=1024;
}
data = ZBuf;
}
status = g_io_channel_write_chars(handle, (char *) data, len, &ret, &err);
if (err != NULL) {
g_warning("%s", err->message);
g_error_free(err);
}
if (status == G_IO_STATUS_ERROR)
return -1;
return ret;
}
//Copy/pasted from irssi/network.c
int read_io(GIOChannel *handle, char *buf, int len)
{
static z_stream ZInStream;
gsize ret;
GIOStatus status;
GError *err = NULL;
g_return_val_if_fail(handle != NULL, -1);
g_return_val_if_fail(buf != NULL, -1);
char *Rbuf = buf;
int Rlen = len;
if(useCompression) {
static int enabled;
if(!enabled) {
if(inflateInit(&ZInStream)) {
fprintf(stderr, "deflateInit failed\n");
exit(1);
}
enabled = 1;
}
static char ZBuf[1024];
Rbuf = ZBuf;
Rlen = sizeof(ZBuf);
//Check if there is some buffer left...
//If there is, return it
if(ZInStream.avail_in) {
ZInStream.avail_out = len;
ZInStream.next_out = (uint8_t*)buf;
int zret = inflate(&ZInStream, Z_SYNC_FLUSH);
if(zret) {
fprintf(stderr, "inflate failed: %d\n", zret);
exit(1);
}
ret = len - ZInStream.avail_out;
return ret;
}
}
status = g_io_channel_read_chars(handle, Rbuf, Rlen, &ret, &err);
if (err != NULL) {
g_warning("%s\n", err->message);
g_error_free(err);
}
if (status == G_IO_STATUS_ERROR || status == G_IO_STATUS_EOF)
return -1; /* disconnected */
if(useCompression && ret) {
ZInStream.avail_out = len;
ZInStream.next_out = (uint8_t*)buf;
ZInStream.avail_in = ret;
ZInStream.next_in = (uint8_t*)Rbuf;
int zret = inflate(&ZInStream, Z_SYNC_FLUSH);
if(zret) {
fprintf(stderr, "inflate failed: %d\n", zret);
exit(1);
}
ret = len - ZInStream.avail_out;
}
return ret;
}
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