void OutOfBandData( netsrc_t sock, const netadr_t& adr, byte *data, std::size_t len )
{
if ( len == 0 )
{
return;
}
std::basic_string<byte> message;
message.reserve(OOBHeader().size() + len);
message.append(OOBHeader().begin(), OOBHeader().end());
message.append(data, len);
msg_t mbuf;
mbuf.data = &message[0];
mbuf.cursize = message.size();
Huff_Compress( &mbuf, 12 );
// send the datagram
NET_SendPacket( sock, mbuf.cursize, mbuf.data, adr );
}
/*
===============
NET_OutOfBandData
Sends a data message in an out-of-band datagram (only used for "connect")
================
*/
void QDECL NET_OutOfBandData( netsrc_t sock, netadr_t adr, byte *format, int len )
{
byte string[ MAX_MSGLEN * 2 ];
int i;
msg_t mbuf;
NET_SetOOBHeader( ( char * ) string );
for ( i = 0; i < len; i++ )
{
string[ i + 4 ] = format[ i ];
}
mbuf.data = string;
mbuf.cursize = len + 4;
Huff_Compress( &mbuf, 12 );
// send the datagram
NET_SendPacket( sock, mbuf.cursize, mbuf.data, adr );
}
/*
===============
NET_OutOfBandPrint
Sends a data message in an out-of-band datagram (only used for "connect")
================
*/
void QDECL NET_OutOfBandData( netsrc_t sock, netadr_t adr, byte* format, int len )
{
byte string[MAX_MSGLEN * 2];
int i;
msg_s mbuf;
// set the header
string[0] = 0xff;
string[1] = 0xff;
string[2] = 0xff;
string[3] = 0xff;
for ( i = 0; i < len; i++ )
{
string[i + 4] = format[i];
}
mbuf.data = string;
mbuf.cursize = len + 4;
Huff_Compress( &mbuf, 12 );
// send the datagram
NET_SendPacket( sock, mbuf.cursize, mbuf.data, adr );
}
/*
================
SV_MakeCompressedPureList
Fills the last N configstrings with compressed pure list
================
*/
int SV_MakeCompressedPureList(void)
{
unsigned char buf[PURE_COMPRESS_BUFFER];
char tmp[1025];
int i,l,bl,sh,shl,ol,csnr;
const char *nam;
msg_t msg = {0};
const char *err_chunk = "ERROR: Too many pk3 files (compressed data doesn't fit into available space)\n";
// Get raw checksums
bl = FS_LoadedPakChecksumsBlob(buf+2,sizeof(buf)-2);
if (!bl) {
Com_Printf("ERROR: Too many pk3 files (size of checksums > buffer)\n");
return 1;
}
Com_DPrintf("CRC SIZE: %d\n",bl);
// Add number of files at start
l = bl/4; // num files
buf[0]=(l)&0xFF;
buf[1]=(l>>8)&0xFF;
// Get pak names
nam = FS_LoadedPakNames();
#if 1
msg.cursize = 2+bl;
i = TextEncode6Bit(nam,buf+msg.cursize,sizeof(buf)-msg.cursize);
if (i<0) return 1;
msg.cursize+=i;
#else // not used, disables 6bit encoding
msg.cursize = 2+bl+strlen(nam)+1;
if (msg.cursize>sizeof(buf)) {
Com_Printf("ERROR: Too many pk3 files (no space in buffer for names, need %d bytes)\n",msg.cursize-sizeof(buf));
return 1;
}
strcpy((char*)buf+2+bl,nam);
#endif
Com_Printf("Pure filelist (%d files) size: %d\n",l,msg.cursize);
// fprintf(stderr,"FNAMES: %s\n",nam);
// Com_Printf("BUF(%d): ",msg.cursize);
// for(i=0;i<msg.cursize;i++) Com_Printf("%02X",buf[i]);
// Com_Printf("\n");
// Huffman compress names
msg.maxsize = sizeof(buf);
msg.data = buf;
Huff_Compress(&msg,2+bl);
bl = msg.cursize;
// fprintf(stderr,"COMPRESSED(%d): ",msg.cursize);
// for(i=0;i<msg.cursize;i++) fprintf(stderr,"%02X",buf[i]);
// fprintf(stderr,"\n");
Com_Printf("Pure filelist compressed size: %d\n",bl);
// Do 8bit to 7bit encoding, escaping \0 % " using @ char and original value + 1
csnr = 0;
sh = 0;
l = 0;
shl = 0;
ol = 0;
for(i=0;i<bl;i++) {
sh=(sh<<8)|buf[i];
shl+=8;
// Com_Printf("IN:%02X\n",buf[i]);
while(shl>=7) {
shl-=7;
int v = (sh>>shl)&127;
if (v==0 || v=='"' || v=='%' || v=='@') {
tmp[ol++] = '@';
// Com_Printf("OUT:%02X\n",tmp[ol-1]);
if (ol==sizeof(tmp)-1) {
tmp[ol]=0;
if (csnr==PURE_COMPRESS_NUMCS) {
Com_Printf(err_chunk);
return 1;
}
SV_SetConfigstring( MAX_CONFIGSTRINGS-PURE_COMPRESS_NUMCS+csnr, tmp);
csnr++;
ol=0;
}
tmp[ol++] = v+1;
} else {
tmp[ol++] = v;
}
// Com_Printf("OUT:%02X\n",tmp[ol-1]);
if (ol==sizeof(tmp)-1) {
tmp[ol]=0;
if (csnr==PURE_COMPRESS_NUMCS) {
Com_Printf(err_chunk);
return 1;
}
SV_SetConfigstring( MAX_CONFIGSTRINGS-PURE_COMPRESS_NUMCS+csnr, tmp);
csnr++;
ol=0;
}
}
}
// Com_Printf("[shl=%d sh=%X]\n",shl,sh);
// Finish remaining bits if any
if (shl>0) {
int v = (sh<<(7-shl))&127;
if (v==0 || v=='"' || v=='%' || v=='@') {
tmp[ol++] = '@';
if (ol==sizeof(tmp)-1) {
tmp[ol]=0;
if (csnr==PURE_COMPRESS_NUMCS) {
Com_Printf(err_chunk);
return 1;
}
SV_SetConfigstring( MAX_CONFIGSTRINGS-PURE_COMPRESS_NUMCS+csnr, tmp);
csnr++;
ol=0;
}
tmp[ol++] = v+1;
} else {
tmp[ol++] = v;
}
// Com_Printf("OUT:%02X\n",tmp[ol-1]);
}
if (ol) {
if (csnr==PURE_COMPRESS_NUMCS) {
Com_Printf(err_chunk);
return 1;
}
tmp[ol]=0;
SV_SetConfigstring( MAX_CONFIGSTRINGS-PURE_COMPRESS_NUMCS+csnr, tmp);
}
Com_Printf("Using %d configstrings to store pure filelist (encoded using %d characters)\n",csnr+1,ol+csnr*1024);
return 0;
}
