Luigi Auriemma

it's a proxocket plugin which means that it's enough to put myproxocket.dll in the same folder of the game's executable and with the ws2_32.dll file located in the proxocket package: http://aluigi.org/mytoolz.htm#proxocket

0x1f is the hex value of 31.
in the dll it's used 31 instead of 32 because the compiler performs a minor/equal comparison instead of the minor one, so if you want to use 3 you must place a 2 where is located 1F

the dll is loaded by ws2_32.dll which is loaded by the game.

if you want to make a local test (client and server on the same computer) you must first launch the server without haing ws2_32.dll in the folder, when the server is running add ws2_32.dll and myproxocket.dll in the folder and launch the client.

/*
by Luigi Auriemma
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winsock.h>
#include <windows.h>



static HMODULE wsock = NULL;
static WINAPI int (*real_sendto)(SOCKET s, char *tbuf, int len, int flags, const struct sockaddr *to, int tolen) = NULL;



void init_myproxocket(void) { // in this example I use this function for loading the real sockets function in case we want to use them
char winpath[MAX_PATH];

if(wsock) return;

GetSystemDirectory(winpath, sizeof(winpath));
strcat(winpath, "\\ws2_32.dll");

wsock = LoadLibrary(winpath);
if(!wsock) return;

real_sendto = (void *)GetProcAddress(wsock, "sendto");
}



void free_myproxocket(void) {
if(wsock) {
FreeLibrary(wsock);
wsock = NULL;
}
}



int mysendto(SOCKET s, u_char **retbuf, int len, int flags, const struct sockaddr *to, int tolen) {
u_char *buf = *retbuf; // do NOT touch this

#define MAXSKIPS 10 // some initial packets to skip from the backbuff operations
#define MAXBACKS 32 // number of packets to store and then send together at the same time
typedef struct {
u_char *pck;
int len;
int maxlen;
} backbuff_t;

static int backs = 0;
static int skips = 0;
static backbuff_t backbuff[MAXBACKS] = {{NULL,0,0}};
int i;

if((len >= 4) && !memcmp(buf, "\xff\xff\xff\xff", 4)) { // example for the Quake 3 engine
skips = 0;
} else if(skips < MAXSKIPS) {
skips++;
} else {
if(backs < MAXBACKS) { // quick example solution
if(len > backbuff[backs].maxlen) {
backbuff[backs].pck = realloc(backbuff[backs].pck, len);
backbuff[backs].maxlen = len;
}
memcpy(backbuff[backs].pck, buf, len);
backbuff[backs].len = len;
backs++;
} else {
for(i = 0; i < backs; i++) {
real_sendto(s, backbuff[i].pck, backbuff[i].len, flags, to, tolen);
}
backs = 0;
}
len = 0;
}

*retbuf = buf; // do NOT touch this
return(len);
}



BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved) {
switch(fdwReason) {
case DLL_PROCESS_ATTACH: {
DisableThreadLibraryCalls(hinstDLL);
init_myproxocket(); // put your init here
break;
}
case DLL_PROCESS_DETACH: {
free_myproxocket(); // put anything to free here
break;
}
default: break;
}
return(TRUE);
}

ok, thank you, and excuse me if i but i dont understdand all this proxy tchnic and i whish to.
i did it whit a detour and it works fine, but PB kicks for "disalowed program driver".