Sockets can be multilanguage?

Because sockets are a common choice for high-performance communication between cross-platform applications , my question is, does that also make them multilingual?

Bringing the situation to my context, what could be the reason why a server-side algorithm developed in C did not communicate with a client developed in another language?

Is there any specific configuration in the server algorithm so that it is able to recognize only client communication requests developed in the same language?

I developed the C server [in Linux] and the client is a serial redirector [in Windows].

I provide below the server algorithm I am using:

Server.c

• The code has been tested and works with a client * (. c)

  int main(void)
  {
  
  int socket_serv, socket_cli; 
  struct sockaddr_in addr_server;
  
  //Cria o socket servidor
  socket_serv = socket(AF_INET, SOCK_STREAM, 0);
  setsockopt(socket_serv, SOL_SOCKET, SO_REUSEADDR, &(int){ 1 }, sizeof(int));
  
  if (socket_serv == -1)
  {
      perror ("Nao foi possivel criar o servidor!\n");
      return -1;
  }
  
  //Prepara a estrutura do endereco do socket servidor
  addr_server.sin_family = AF_INET;
  addr_server.sin_addr.s_addr = inet_addr("192.168.15.15");//INADDR_ANY;
  addr_server.sin_port = htons(2000);
  
  //Bind
  if (bind (socket_serv, (struct sockaddr *)&addr_server, sizeof(addr_server)) < 0)
  {
      perror ("Falhou o bind no servidor\n");
      return -2;
  }
  
  //Listen
  listen (socket_serv, 1);
  
  //Aceita uma conexão de um cliente
  puts ("Aguardando cliente...\n");
  while ( (socket_cli = accept (socket_serv, 0, 0)) )
  {
      puts ("Cliente conectado!\n");
      ....
  }
  
  return 0;}