unable to connect to windowsxp sockets

[ravinstl]

i am using windowsxp in one pc and another running on fedora 11,,, i develop socket based applications which run on fedora linux. But i need to test these applications with a software running on windows xp. i found that i could not connect to socket of the application running on fedora from an application running on windows. i am not able to identify the problem. can anybody tell me why this is happening. should i try any other linux distribution ?

[Rubberman]

More information please. Sample source code, system configuration, etc. would be useful. I've done a lot of windows -> Unix/Linux programming without any problems.

[ravinstl]

Thank u for you reply,

infact pinging the windows machine from fedora machine and vice-versa was successfull, but still i could not connect / receive / accept the connections in any machines.

i thried tthe following cases ans have given the status at as OK/NOT OK.

linux server - linux client -OK
linux server - windows client -NOT OK
windows server - linux client -NOT OK
windows server - windows client -OK



In fact i recently tried the same code on PCQlinux 2005, and the same worked. but i need to run the same on fedora instead of PCQLinux.


my system conf:

Windows machine:
OS: WINXP
intel core 2 duo 2.66 Ghz, 3 GB RAM , i am not aware of ethernet card

Fedora 11 machine:
intel P-IV , 3 GHz , 2 GB RAM ,, Ethernet card : Broadcom NetExtreme card

i am enclosing socrce code also
server code:RUNS ON FEDORA 11



int MyReceive();
void CreateUDPSocket();
int Sock,port;
#define DATASIZE 10000

struct DataToRecv
{ int PktNo;
char data[DATASIZE];
};

struct DataToRecv *MyData;


char SRCIPADDR[20]={"172.16.2.224"};
int SRCPORT=4568;

char DESTIPADDR[20]={"172.16.3.33"};
int DESTPORT=4567;


int main()
{

MyReceive();


return 1;
}




/**************************************/
int MyReceive()
{

FILE *ReveivedData;

ReveivedData=fopen("ReveivedData.dat","w");

int status;
CreateUDPSocket();
char *Data;
MyData= new struct DataToRecv;
Data=(char*)MyData;
for(int i=0;i<100;i++)
{
status=recv(Sock,Data,sizeof(struct DataToRecv),0);
fprintf(ReveivedData,"PktNo= %d\n",MyData->PktNo);
fprintf(ReveivedData,"%s\n",MyData->data);

printf("after reception %d %s PktNo=%d\n",status,MyData->data,MyData->PktNo);
}


return(status);
}

/**************************************/
void CreateUDPSocket()
{

Sock=socket(AF_INET,SOCK_DGRAM,0);
struct sockaddr_in name;
int namelen;

name.sin_family = AF_INET;
name.sin_addr.s_addr = inet_addr(SRCIPADDR);
name.sin_port = htons(SRCPORT);

namelen=sizeof(name);
bind(Sock,(struct sockaddr *)&name,namelen);




}



clinent code: RUNS ON WINXP

void MySend();
void CreateUDPSocket();
int SendData(struct DataToSend ,int size);
int Sock,port;
#define DATASIZE 10000
struct DataToSend
{ int PktNo;
char data[DATASIZE];
};

struct DataToSend MyData;

char SRCIPADDR[20]={"172.16.2.224"};
int SRCPORT=4567;
char DESTIPADDR[20]={"172.16.3.33"};
int DESTPORT=4568;
/**************************************/

int main()
{

MySend();


return nRetCode;
}


void MySend()
{

printf("Hello World!\n");
CreateUDPSocket();

for(int i=0;i<10000;i++)
{
sprintf(MyData.data,"%d",i);

/**************************************/
int j=SendData(MyData,sizeof(MyData));
/**************************************/
Sleep(1000);
printf("ststus After sensing %d\n",j);
}




}

/**************************************/
#define EQ ==
#define NEQ !=
#define LEQ <=

void CreateUDPSocket()
{


Sock=socket(AF_INET,SOCK_DGRAM,0);
struct sockaddr_in name;
int namelen;

name.sin_family = AF_INET;
name.sin_addr.s_addr = inet_addr(SRCIPADDR);
name.sin_port = htons(SRCPORT);

namelen=sizeof(name);
bind(Sock,(struct sockaddr *)&name,namelen);




}


int SendData(struct DataToSend MyData1,int size)
{
static unsigned int PktCount=0;
struct sockaddr_in name;
int namelen;
int status;

name.sin_family = AF_INET;
name.sin_addr.s_addr = inet_addr(DESTIPADDR);
name.sin_port = htons(DESTPORT);
namelen=sizeof(name);

MyData1.PktNo=PktCount++;
status=sendto(Sock,(char*)&MyData1,size,0,(struct sockaddr *)&name,namelen);
return(status);
}
/**************************************/

[Rubberman]

What are your Windows firewall settings?

[ravinstl]

i donot have any firewall activated in windows PC.


infact , it is working with PCQLinux 2005,, but not with fedora