Problem with socket in java and c++

I am connecting to a server developed in java that use sys/socket.h, this server use DataInputStream
class and readUTF so:
in = new DataInputStream(socket.getInputStream());
inputString = in.readUTF()
My application in C++ it use winsock2.h and I utilize the method "send" in order to send the plots to the server
java got hold of:
#define MAXLONGITUD 10000
char     bufEnviados[MAXLONGITUD + 1];
bufEnviados[0] = (0xff & (longitud >> 8));
bufEnviados[1] = (0xff & longitud);
send(sock, bufEnviados,strlen(bufEnviados), 0 );
I send the two first characters with UTF format so that the server in java could recognize them.
The application operated correctly it until received an old plot of 6.236 characters later
from which it close the connection with the socket and it fall my application!
I have carried out several tests and I don't succeed in sending more than those 6.236 characters, however it achievement receibing whatever quantity of characters without problems!
Could somebody help me to resolve this problem? I am attempting of everything and I don't achieve it!
Ahead of time thank you!

alfaximena wrote:
#define MAXLONGITUD 10000
char     bufEnviados[MAXLONGITUD + 1];
bufEnviados[0] = (0xff & (longitud >> 8));
bufEnviados[1] = (0xff & longitud);
send(sock, bufEnviados,strlen(bufEnviados), 0 );
Are you sending characters or binary data? You mention "plot" which sounds like binary data. You cannot send binary data via character encoding. Characters in java are not just bits, they are mapped values. If you encode it with something like base64 then that should be ok.
I can only suppose that your testing was with data sets greater than 255, because strlen() would not have worked otherwise.
Since you have the size then use it rather than using strlen().
I send the two first characters with UTF format so that the server in java could recognize them.
The application operated correctly it until received an old plot of 6.236 characters later
from which it close the connection with the socket and it fall my application!
There is nothing special about that particular number. So I would guess that the data in that set is the problem. Probably because you are in fact sending binary data. If, for example, a byte with a value of zero showed up in the sequence then strlen() would return an incorrect value compared to the size that you told java you are sending.

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