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//
// DF Netplay Plugin
//
// Based on netSock 0.2 by linuzappz.
// The Plugin is free source code.
//
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
extern int errno;
#include "dfnet.h"
const unsigned char version = 2; // NET library v2
const unsigned char revision = 0;
const unsigned char build = 3; // increase that with each version
static char *libraryName = N_("Socket Driver");
unsigned long CALLBACK PSEgetLibType() {
return PSE_LT_NET;
}
char* CALLBACK PSEgetLibName() {
return _(libraryName);
}
unsigned long CALLBACK PSEgetLibVersion() {
return version << 16 | revision << 8 | build;
}
long CALLBACK NETinit() {
return sockInit();
}
size_t SEND(const void *buf, int Size, int Mode) {
long bytes;
long count = 0;
const char *pData = (const char *)buf;
if (Mode & PSE_NET_NONBLOCKING) { // NONBLOCKING
int ret;
FD_ZERO(&wset);
FD_SET(sock, &wset);
ret = select(sock + 1, NULL, &wset, NULL, &tm);
if (ret == -1) return -1;
if (FD_ISSET(sock, &wset)) {
return send(sock, pData, Size, 0);
} else {
return 0;
}
} else { // BLOCKING
while (Size > 0) {
bytes = send(sock, pData, Size, 0);
if (bytes < 0) return -1;
pData += bytes; Size -= bytes;
count += bytes;
}
}
return count;
}
size_t RECV(void *buf, int Size, int Mode) {
long bytes;
long count = 0;
char *pData = (char *)buf;
if (Mode & PSE_NET_NONBLOCKING) { // NONBLOCKING
int ret;
FD_ZERO(&rset);
FD_SET(sock, &rset);
ret = select(sock, &rset, NULL, NULL, &tm);
if (FD_ISSET(sock, &rset)) {
return recv(sock, pData, Size, 0);
} else {
return 0;
}
} else { // BLOCKING
while (Size > 0) {
bytes = recv(sock, pData, Size, 0);
if (bytes == -1) return -1;
pData+= bytes; Size-= bytes;
count+= bytes;
}
}
return count;
}
long CALLBACK NETopen(unsigned long *gpuDisp) {
long ret = sockOpen();
struct sockaddr_in address;
if (ret == -1) return -1;
if (conf.PlayerNum == 1) {
int listen_sock, reuse_addr = 1;
int ret;
memset((char *)&address, 0, sizeof (address));
address.sin_family = AF_INET;
address.sin_port = htons(conf.PortNum);
address.sin_addr.s_addr = INADDR_ANY;
listen_sock = socket(AF_INET, SOCK_STREAM, 0);
if (listen_sock == -1)
return -1;
setsockopt(listen_sock, SOL_SOCKET, SO_REUSEADDR, (const char *)&reuse_addr, sizeof(reuse_addr));
if (bind(listen_sock,(struct sockaddr *) &address, sizeof(address)) == -1)
return -1;
if (listen(listen_sock, 1) != 0)
return -1;
sock = -1;
WaitCancel = 0;
sockCreateWaitDlg();
while (sock < 0) {
FD_ZERO(&rset);
FD_SET(listen_sock, &rset);
ret = select(listen_sock + 1, &rset, NULL, NULL, &tm);
if (FD_ISSET(listen_sock, &rset)) {
sock = accept(listen_sock, NULL, NULL);
}
if (WaitCancel) break;
sockDlgUpdate();
}
close(listen_sock);
sockDestroyWaitDlg();
if (WaitCancel == 1) return -1;
} else {
memset((char *)&address, 0, sizeof(address));
address.sin_family = AF_INET;
address.sin_port = htons(conf.PortNum);
address.sin_addr.s_addr = inet_addr(conf.ipAddress);
sock = socket(AF_INET, SOCK_STREAM, 0);
if (connect(sock, (struct sockaddr *)&address, sizeof(address))!=0) {
SysMessage(_("error connecting to %s: %s\n"), conf.ipAddress, strerror(errno));
return -1;
}
}
PadInit = 0;
PadCount = 0;
PadSize[0] = -1;
PadSize[1] = -1;
PadRecvSize = -1;
PadSendSize = -1;
Ping = sockPing();
Ping = (sockPing() + Ping) / 2;
Ping = (sockPing() + Ping) / 2;
if (conf.PlayerNum == 1) {
PadCountMax = (int)(((double)Ping / 1000.0) * 60.0);
if (PadCountMax <= 0) PadCountMax = 1;
SEND(&PadCountMax, 4, PSE_NET_BLOCKING);
} else {
RECV(&PadCountMax, 4, PSE_NET_BLOCKING);
}
PadSendData = (char *)malloc(PadCountMax * 128);
if (PadSendData == NULL) {
SysMessage("%s", _("Error allocating memory!\n")); return -1;
}
memset(PadSendData, 0xff, PadCountMax);
return ret;
}
long CALLBACK NETclose() {
close(sock);
return 0;
}
long CALLBACK NETshutdown() {
return sockShutdown();
}
void CALLBACK NETpause() {
/* unsigned char Code = 0x80;
SEND(&Code, 1, PSE_NET_BLOCKING);*/
}
void CALLBACK NETresume() {
/* unsigned char Code = 0x80;
SEND(&Code, 1, PSE_NET_BLOCKING);*/
}
long CALLBACK NETsendData(void *pData, int Size, int Mode) {
return SEND(pData, Size, Mode);
}
long CALLBACK NETrecvData(void *pData, int Size, int Mode) {
return RECV(pData, Size, Mode);
}
long CALLBACK NETsendPadData(void *pData, int Size) {
if (PadSendSize == -1) {
PadSendSize = Size;
if (SEND(&PadSendSize, 1, PSE_NET_BLOCKING) == -1)
return -1;
if (RECV(&PadRecvSize, 1, PSE_NET_BLOCKING) == -1)
return -1;
}
memcpy(&PadSendData[PadCount], pData, Size);
if (SEND(pData, PadSendSize, PSE_NET_BLOCKING) == -1)
return -1;
return 0;
}
long CALLBACK NETrecvPadData(void *pData, int Pad) {
if (PadInit == 0) {
if (conf.PlayerNum == Pad) {
memset(pData, 0xff, PadSendSize);
} else {
memset(pData, 0xff, PadRecvSize);
}
} else {
if (conf.PlayerNum == Pad) {
memcpy(pData, &PadSendData[PadCount == 0 ? PadCountMax-1 : PadCount-1], PadSendSize);
} else {
if (RECV(pData, PadRecvSize, PSE_NET_BLOCKING) == -1)
return -1;
}
}
if (Pad == 2) {
PadCount++;
if (PadCount == PadCountMax) {
PadCount = 0;
PadInit = 1;
}
}
return 0;
}
long CALLBACK NETqueryPlayer() {
return conf.PlayerNum;
}
long CALLBACK NETtest() {
return 0;
}
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