i was woking on A7 7.84 pro about socket.but there is a problem that:
the socket_connect and socket_send work fine in one program.(like the example code)

but when i use it in two programs like server.c and client.c (whatever they are both runned on the same computer or in the same network) the socket_recieve() returns 0 and nothing received.

can the socket_ function run in different program?or it can only run in one program?

Code:
#include <acknex.h>
#include <default.c>
#include <d3d9.h>
STRING* l_C_Server_Address = "127.0.0.1";
var l_C_Port_Num = 1234;
TEXT* txtReceive = { flags = SHOW; }

function main()
{
	level_load("");
	wait(3);
	if (!socket_connect(l_C_Server_Address, l_C_Port_Num, 0)) {
      printf("Can't connect to GalepX!");
   } else {

		char input;
		
	   while(1) {
        	wait(1);
// receive the response   
        	int received = socket_receive(input,str_len("d"));
        	if (received) {
        		input[received]=0;
        		printf(input);
// display the response   
          	// input[received] = 0; // add '0' end mark
          	txt_addstring(txtReceive,input);
        	}
		}

	}
}

Code:
#include <acknex.h>
#include <default.c>
#include <d3d9.h>
STRING* l_C_Server_Address = "127.0.0.1";
var l_C_Port_Num = 1234;
TEXT* txtReceive = { flags = SHOW; }

function main()
{
	level_load("");
	wait(3);
	if (!socket_connect(l_C_Server_Address, l_C_Port_Num, 0)) {
      printf("Can't connect to GalepX!");
   } else {
	
	
		while(1){
			socket_connect(l_C_Server_Address, l_C_Port_Num, 0);
			if(key_s)socket_send(_chr("s"),str_len("s"));
			if(key_d)socket_send(_chr("d"),str_len("d"));
			wait(1);
		}
	}
}


plz hlep me have a look at what's the problem

the source code is like the attachment.