Example #1
0
int main (void)
{
  int  rc;
  char buf[100] = { 0 };

  setup();
  sock = socket (AF_INET, SOCK_STREAM, 0);
  assert (sock >= 0);

  sock_name.sin_family      = AF_INET;
  sock_name.sin_port        = htons (test_port);
  sock_name.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
  assert (bind(sock, (struct sockaddr*)&sock_name, sizeof(sock_name)) != -1);

  sock_name.sin_family      = AF_INET;
  sock_name.sin_port        = htons (test_port);
  sock_name.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
  assert (connect(sock, (struct sockaddr*)&sock_name, sizeof(sock_name)) != -1);

  do
  {
    rc = sock_select (sock);
  }
  while (rc < 0);

  assert (write_s(sock,"HELO",4) != -1);
  assert (read_s (sock,buf,sizeof(buf)) != -1);
  printf ("buf = `%s'\n", buf);

  assert (write_s(sock,"QUIT",4) != -1);
  assert (close_s(sock) != -1);
  sock = -1;
  return (0);
}
Example #2
0
ssize_t sock_recv(int *s, char *buf, int len, int timout_ms)
{
    ssize_t rc;

    if(sock_select(s, timout_ms, READ) <= 0)
        return SOCK_TIMEOUT;

    rc = recv(*s, buf, len, 0);

    return rc;
}
Example #3
0
int sock_recv(int *s, char *buf, int len, int msec)
{
    int rc;

    if(sock_select(s, msec, READ) <= 0)
        return SOCK_TIMEOUT;

    rc = recv(*s, buf, len, 0);

    return rc;
}
Example #4
0
int sock_connect(const char *addr, short port, int timout_ms)
{

    int sock;
    struct hostent *host_ptr;
    struct sockaddr_in hostname;

#ifdef _WIN32
    WSADATA wsa;
    WSAStartup(MAKEWORD(2,2),&wsa);
#endif

    sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
    if(sock == -1)
          return SOCK_ERR_CREATE;

    host_ptr = gethostbyname(addr);
    if(host_ptr == NULL)
    {
        host_ptr = gethostbyaddr(addr, (unsigned) strlen(addr), AF_INET);
        if(host_ptr == NULL)
        {
            sock_close(&sock);
            return SOCK_ERR_RESOLVE;
        }
    }

    hostname.sin_family = AF_INET;
    hostname.sin_port = htons(port);

    memcpy(&hostname.sin_addr, host_ptr->h_addr, host_ptr->h_length);

    
    sock_nonblock(&sock);

    connect(sock, (struct sockaddr*) &hostname, sizeof(hostname));

    if(sock_select(&sock, timout_ms, WRITE) <= 0)
    {
        sock_close(&sock);
        return SOCK_TIMEOUT;
    }

    if(!sock_isvalid(&sock))
    {
        sock_close(&sock);
        return SOCK_INVALID;
    }

    return sock;
}
Example #5
0
int sock_send(int *s, char *buf, int len, int msec)
{
    int rc;
    int sent = 0;
    int error;

    while(sent < len)
    {
        rc = sock_select(s, 60000, WRITE); //check if socket is connected
        if(rc == 0)
        {
            printf("select returned 0\n");
            fflush(stdout);
            return SOCK_TIMEOUT;
        }

        if(rc == -1)
        {
            printf("select returned -1\n");
            fflush(stdout);
            return SOCK_TIMEOUT;
        }

        if((rc = send(*s, buf+sent, len-sent, 0)) < 0)
        {
            error = errno;
            if(error != EWOULDBLOCK)
            {
                printf("send errno: %d\n", error);
                fflush(stdout);
                return SOCK_TIMEOUT;
            }
            rc = 0;
        }

        sent += rc;
    }
    return sent;
}
Example #6
0
int sock_send(int *s, const char *buf, size_t len, int timout_ms)
{
    ssize_t rc;
    int sent = 0;
    int error;

    while(sent < len)
    {
        rc = sock_select(s, 10000, WRITE); //check if socket is connected
        
        if(rc == 0)
        {
            fflush(stdout);
            return SOCK_TIMEOUT;
        }

        if(rc == -1)
        {
            fflush(stdout);
            return SOCK_TIMEOUT;
        }

        if((rc = send(*s, buf+sent, len-sent, 0)) < 0)
        {
            
            error = errno;
            if(error != EWOULDBLOCK)
            {
                fflush(stdout);
                return SOCK_TIMEOUT;
            }
            rc = 0;
        }

        sent += rc;
    }
    return sent;
}