Diff: socket.cpp

Revision:

0:c44f0314d6ec

Child:

1:bbcaf0b2f367

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/socket.cpp	Fri Jun 28 17:48:37 2013 +0000
@@ -0,0 +1,1130 @@
+/*****************************************************************************
+*
+*  socket.c  - CC3000 Host Driver Implementation.
+*  Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+*
+*  Redistribution and use in source and binary forms, with or without
+*  modification, are permitted provided that the following conditions
+*  are met:
+*
+*    Redistributions of source code must retain the above copyright
+*    notice, this list of conditions and the following disclaimer.
+*
+*    Redistributions in binary form must reproduce the above copyright
+*    notice, this list of conditions and the following disclaimer in the
+*    documentation and/or other materials provided with the   
+*    distribution.
+*
+*    Neither the name of Texas Instruments Incorporated nor the names of
+*    its contributors may be used to endorse or promote products derived
+*    from this software without specific prior written permission.
+*
+*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+*  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+*  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+*  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+*****************************************************************************/
+
+//*****************************************************************************
+//
+//! \addtogroup socket_api
+//! @{
+//
+//*****************************************************************************
+
+/*#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>*/
+#include "socket.h"
+#include "hci.h"
+#include "evnt_handler.h"
+#include "netapp.h"
+
+//Enable this flag if and only if you must comply with BSD socket 
+//close() function
+#ifdef _API_USE_BSD_CLOSE
+   #define close(sd) closesocket(sd)
+#endif
+
+//Enable this flag if and only if you must comply with BSD socket read() and 
+//write() functions
+#ifdef _API_USE_BSD_READ_WRITE
+              #define read(sd, buf, len, flags) recv(sd, buf, len, flags)
+              #define write(sd, buf, len, flags) send(sd, buf, len, flags)
+#endif
+
+#define SOCKET_OPEN_PARAMS_LEN                 (12)
+#define SOCKET_CLOSE_PARAMS_LEN                (4)
+#define SOCKET_ACCEPT_PARAMS_LEN               (4)
+#define SOCKET_BIND_PARAMS_LEN                 (20)
+#define SOCKET_LISTEN_PARAMS_LEN               (8)
+#define SOCKET_GET_HOST_BY_NAME_PARAMS_LEN     (9)
+#define SOCKET_CONNECT_PARAMS_LEN              (20)
+#define SOCKET_SELECT_PARAMS_LEN               (44)
+#define SOCKET_SET_SOCK_OPT_PARAMS_LEN         (20)
+#define SOCKET_GET_SOCK_OPT_PARAMS_LEN         (12)
+#define SOCKET_RECV_FROM_PARAMS_LEN            (12)
+#define SOCKET_SENDTO_PARAMS_LEN               (24)
+#define SOCKET_MDNS_ADVERTISE_PARAMS_LEN       (12)
+
+#define NULL 0
+
+// The legnth of arguments for the SEND command: sd + buff_offset + len + flags, 
+// while size of each parameter is 32 bit - so the total length is 16 bytes;
+
+#define HCI_CMND_SEND_ARG_LENGTH    (16)
+
+
+#define SELECT_TIMEOUT_MIN_MICRO_SECONDS  5000
+
+#define HEADERS_SIZE_DATA       (SPI_HEADER_SIZE + 5)
+
+#define SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE  (SPI_HEADER_SIZE + SIMPLE_LINK_HCI_CMND_HEADER_SIZE)
+
+#define MDNS_DEVICE_SERVICE_MAX_LENGTH     (32)
+
+
+//*****************************************************************************
+//
+//! HostFlowControlConsumeBuff
+//!
+//!  @param  sd  socket descriptor
+//!
+//!  @return 0 in case there are buffers available, 
+//!          -1 in case of bad socket
+//!          -2 if there are no free buffers present (only when 
+//!          SEND_NON_BLOCKING is enabled)
+//!
+//!  @brief  if SEND_NON_BLOCKING not define - block until have free buffer 
+//!          becomes available, else return immediately  with correct status 
+//!          regarding the buffers available.
+//
+//*****************************************************************************
+int HostFlowControlConsumeBuff(int sd)
+{
+#ifndef SEND_NON_BLOCKING
+    /* wait in busy loop */
+    do
+    {
+        // In case last transmission failed then we will return the last failure 
+        // reason here.
+        // Note that the buffer will not be allocated in this case
+        if (tSLInformation.slTransmitDataError != 0)
+        {
+            errno = tSLInformation.slTransmitDataError;
+            tSLInformation.slTransmitDataError = 0;
+            return errno;
+        }
+        
+        if(SOCKET_STATUS_ACTIVE != get_socket_active_status(sd))
+            return -1;
+    } while(0 == tSLInformation.usNumberOfFreeBuffers);
+    
+    tSLInformation.usNumberOfFreeBuffers--;
+    
+    return 0;
+#else
+    
+    // In case last transmission failed then we will return the last failure 
+    // reason here.
+    // Note that the buffer will not be allocated in this case
+    if (tSLInformation.slTransmitDataError != 0)
+    {
+        errno = tSLInformation.slTransmitDataError;
+        tSLInformation.slTransmitDataError = 0;
+        return errno;
+    }
+    if(SOCKET_STATUS_ACTIVE != get_socket_active_status(sd))
+        return -1;
+    
+    //If there are no available buffers, return -2. It is recommended to use  
+    // select or receive to see if there is any buffer occupied with received data
+    // If so, call receive() to release the buffer.
+    if(0 == tSLInformation.usNumberOfFreeBuffers)
+    {
+        return -2;
+    }
+    else
+    {
+        tSLInformation.usNumberOfFreeBuffers--;
+        return 0;
+    }
+#endif
+}
+
+//*****************************************************************************
+//
+//! socket
+//!
+//!  @param  domain    selects the protocol family which will be used for 
+//!                    communication. On this version only AF_INET is supported
+//!  @param  type      specifies the communication semantics. On this version 
+//!                    only SOCK_STREAM, SOCK_DGRAM, SOCK_RAW are supported
+//!  @param  protocol  specifies a particular protocol to be used with the 
+//!                    socket IPPROTO_TCP, IPPROTO_UDP or IPPROTO_RAW are 
+//!                    supported.
+//!
+//!  @return  On success, socket handle that is used for consequent socket 
+//!           operations. On error, -1 is returned.
+//!
+//!  @brief  create an endpoint for communication
+//!          The socket function creates a socket that is bound to a specific 
+//!          transport service provider. This function is called by the 
+//!          application layer to obtain a socket handle.
+//
+//*****************************************************************************
+
+int socket(long domain, long type, long protocol)
+{
+    long ret;
+    unsigned char *ptr, *args;
+    
+    ret = EFAIL;
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, domain);
+    args = UINT32_TO_STREAM(args, type);
+    args = UINT32_TO_STREAM(args, protocol);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_SOCKET, ptr, SOCKET_OPEN_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_SOCKET, &ret);
+    
+    // Process the event 
+    errno = ret;
+    
+    set_socket_active_status(ret, SOCKET_STATUS_ACTIVE);
+    
+    return(ret);
+}
+
+//*****************************************************************************
+//
+//! closesocket
+//!
+//!  @param  sd    socket handle.
+//!
+//!  @return  On success, zero is returned. On error, -1 is returned.
+//!
+//!  @brief  The socket function closes a created socket.
+//
+//*****************************************************************************
+
+long closesocket(long sd)
+{
+    long ret;
+    unsigned char *ptr, *args;
+    
+    ret = EFAIL;
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, sd);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_CLOSE_SOCKET, ptr, SOCKET_CLOSE_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_CLOSE_SOCKET, &ret);
+    errno = ret;
+    
+    // since 'close' call may result in either OK (and then it closed) or error 
+    // mark this socket as invalid 
+    set_socket_active_status(sd, SOCKET_STATUS_INACTIVE);
+    
+    return(ret);
+}
+
+//*****************************************************************************
+//
+//! accept
+//!
+//!  @param[in]   sd      socket descriptor (handle)              
+//!  @param[out]  addr    the argument addr is a pointer to a sockaddr structure
+//!                       This structure is filled in with the address of the  
+//!                       peer socket, as known to the communications layer.        
+//!                       determined. The exact format of the address returned             
+//!                       addr is by the socket's address sockaddr. 
+//!                       On this version only AF_INET is supported.
+//!                       This argument returns in network order.
+//!  @param[out] addrlen  the addrlen argument is a value-result argument: 
+//!                       it should initially contain the size of the structure
+//!                       pointed to by addr.
+//!
+//!  @return  For socket in blocking mode:
+//!                      On success, socket handle. on failure negative
+//!                  For socket in non-blocking mode:
+//!                     - On connection establishment, socket handle
+//!                     - On connection pending, SOC_IN_PROGRESS (-2)
+//!                   - On failure, SOC_ERROR    (-1)
+//!
+//!  @brief  accept a connection on a socket:
+//!          This function is used with connection-based socket types 
+//!          (SOCK_STREAM). It extracts the first connection request on the 
+//!          queue of pending connections, creates a new connected socket, and
+//!          returns a new file descriptor referring to that socket.
+//!          The newly created socket is not in the listening state. 
+//!          The original socket sd is unaffected by this call. 
+//!          The argument sd is a socket that has been created with socket(),
+//!          bound to a local address with bind(), and is  listening for 
+//!          connections after a listen(). The argument addr is a pointer 
+//!          to a sockaddr structure. This structure is filled in with the 
+//!          address of the peer socket, as known to the communications layer.
+//!          The exact format of the address returned addr is determined by the 
+//!          socket's address family. The addrlen argument is a value-result
+//!          argument: it should initially contain the size of the structure
+//!          pointed to by addr, on return it will contain the actual 
+//!          length (in bytes) of the address returned.
+//!
+//! @sa     socket ; bind ; listen
+//
+//*****************************************************************************
+
+long accept(long sd, sockaddr *addr, socklen_t *addrlen)
+{
+    long ret;
+    unsigned char *ptr, *args;
+    tBsdReturnParams tAcceptReturnArguments;
+    
+    ret = EFAIL;
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, sd);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_ACCEPT, ptr, SOCKET_ACCEPT_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_ACCEPT, &tAcceptReturnArguments);
+    
+    
+    // need specify return parameters!!!
+    memcpy(addr, &tAcceptReturnArguments.tSocketAddress, ASIC_ADDR_LEN);
+    *addrlen = ASIC_ADDR_LEN;
+    errno = tAcceptReturnArguments.iStatus; 
+    ret = errno;
+    
+    // if succeeded, iStatus = new socket descriptor. otherwise - error number 
+    if(M_IS_VALID_SD(ret))
+    {
+        set_socket_active_status(ret, SOCKET_STATUS_ACTIVE);
+    }
+    else
+    {
+        set_socket_active_status(sd, SOCKET_STATUS_INACTIVE);
+    }
+    
+    return(ret);
+}
+
+//*****************************************************************************
+//
+//! bind
+//!
+//!  @param[in]   sd      socket descriptor (handle)              
+//!  @param[out]  addr    specifies the destination address. On this version 
+//!                       only AF_INET is supported.
+//!  @param[out] addrlen  contains the size of the structure pointed to by addr.
+//!
+//!  @return      On success, zero is returned. On error, -1 is returned.
+//!
+//!  @brief  assign a name to a socket
+//!          This function gives the socket the local address addr.
+//!          addr is addrlen bytes long. Traditionally, this is called when a 
+//!          socket is created with socket, it exists in a name space (address 
+//!          family) but has no name assigned.
+//!          It is necessary to assign a local address before a SOCK_STREAM
+//!          socket may receive connections.
+//!
+//! @sa     socket ; accept ; listen
+//
+//*****************************************************************************
+
+long bind(long sd, const sockaddr *addr, long addrlen)
+{
+    long ret;
+    unsigned char *ptr, *args;
+    
+    ret = EFAIL;
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    addrlen = ASIC_ADDR_LEN;
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, sd);
+    args = UINT32_TO_STREAM(args, 0x00000008);
+    args = UINT32_TO_STREAM(args, addrlen);
+    ARRAY_TO_STREAM(args, ((unsigned char *)addr), addrlen);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_BIND, ptr, SOCKET_BIND_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_BIND, &ret);
+    
+    errno = ret;
+  
+    return(ret);
+}
+
+//*****************************************************************************
+//
+//! listen
+//!
+//!  @param[in]   sd      socket descriptor (handle)              
+//!  @param[in]  backlog  specifies the listen queue depth. On this version
+//!                       backlog is not supported.
+//!  @return      On success, zero is returned. On error, -1 is returned.
+//!
+//!  @brief  listen for connections on a socket
+//!          The willingness to accept incoming connections and a queue
+//!          limit for incoming connections are specified with listen(),
+//!          and then the connections are accepted with accept.
+//!          The listen() call applies only to sockets of type SOCK_STREAM
+//!          The backlog parameter defines the maximum length the queue of
+//!          pending connections may grow to. 
+//!
+//! @sa     socket ; accept ; bind
+//!
+//! @note   On this version, backlog is not supported
+//
+//*****************************************************************************
+
+long listen(long sd, long backlog)
+{
+    long ret;
+    unsigned char *ptr, *args;
+    
+    ret = EFAIL;
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, sd);
+    args = UINT32_TO_STREAM(args, backlog);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_LISTEN, ptr, SOCKET_LISTEN_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_LISTEN, &ret);
+    errno = ret;
+    
+    return(ret);
+}
+
+//*****************************************************************************
+//
+//! gethostbyname
+//!
+//!  @param[in]   hostname     host name              
+//!  @param[in]   usNameLen    name length 
+//!  @param[out]  out_ip_addr  This parameter is filled in with host IP address. 
+//!                            In case that host name is not resolved, 
+//!                            out_ip_addr is zero.                  
+//!  @return      On success, positive is returned. On error, negative is returned
+//!
+//!  @brief  Get host IP by name. Obtain the IP Address of machine on network, 
+//!          by its name.
+//!
+//!  @note  On this version, only blocking mode is supported. Also note that
+//!             the function requires DNS server to be configured prior to its usage.
+//
+//*****************************************************************************
+#ifndef CC3000_TINY_DRIVER
+int gethostbyname(char * hostname, unsigned short usNameLen, unsigned long* out_ip_addr)
+{
+    tBsdGethostbynameParams ret;
+    unsigned char *ptr, *args;
+    
+    errno = EFAIL;
+    
+    if (usNameLen > HOSTNAME_MAX_LENGTH)
+    {
+        return errno;
+    }
+    
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE);
+    
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, 8);
+    args = UINT32_TO_STREAM(args, usNameLen);
+    ARRAY_TO_STREAM(args, hostname, usNameLen);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_GETHOSTNAME, ptr, SOCKET_GET_HOST_BY_NAME_PARAMS_LEN + usNameLen - 1);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_EVNT_BSD_GETHOSTBYNAME, &ret);
+    
+    errno = ret.retVal;
+    
+    (*((long*)out_ip_addr)) = ret.outputAddress;
+    
+    return (errno);
+    
+}
+#endif
+
+//*****************************************************************************
+//
+//! connect
+//!
+//!  @param[in]   sd       socket descriptor (handle)         
+//!  @param[in]   addr     specifies the destination addr. On this version
+//!                        only AF_INET is supported.
+//!  @param[out]  addrlen  contains the size of the structure pointed to by addr    
+//!  @return      On success, zero is returned. On error, -1 is returned
+//!
+//!  @brief  initiate a connection on a socket 
+//!          Function connects the socket referred to by the socket descriptor 
+//!          sd, to the address specified by addr. The addrlen argument 
+//!          specifies the size of addr. The format of the address in addr is 
+//!          determined by the address space of the socket. If it is of type 
+//!          SOCK_DGRAM, this call specifies the peer with which the socket is 
+//!          to be associated; this address is that to which datagrams are to be
+//!          sent, and the only address from which datagrams are to be received.  
+//!          If the socket is of type SOCK_STREAM, this call attempts to make a 
+//!          connection to another socket. The other socket is specified  by 
+//!          address, which is an address in the communications space of the
+//!          socket. Note that the function implements only blocking behavior 
+//!          thus the caller will be waiting either for the connection 
+//!          establishment or for the connection establishment failure.
+//!
+//!  @sa socket
+//
+//*****************************************************************************
+
+long connect(long sd, const sockaddr *addr, long addrlen)
+{
+    long int ret;
+    unsigned char *ptr, *args;
+    
+    ret = EFAIL;
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE);
+    addrlen = 8;
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, sd);
+    args = UINT32_TO_STREAM(args, 0x00000008);
+    args = UINT32_TO_STREAM(args, addrlen);
+    ARRAY_TO_STREAM(args, ((unsigned char *)addr), addrlen);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_CONNECT, ptr, SOCKET_CONNECT_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_CONNECT, &ret);
+    
+    errno = ret;
+    
+    return((long)ret);
+}
+
+
+//*****************************************************************************
+//
+//! select
+//!
+//!  @param[in]   nfds       the highest-numbered file descriptor in any of the
+//!                           three sets, plus 1.     
+//!  @param[out]   writesds   socket descriptors list for write monitoring
+//!  @param[out]   readsds    socket descriptors list for read monitoring  
+//!  @param[out]   exceptsds  socket descriptors list for exception monitoring
+//!  @param[in]   timeout     is an upper bound on the amount of time elapsed
+//!                           before select() returns. Null means infinity 
+//!                           timeout. The minimum timeout is 5 milliseconds,
+//!                          less than 5 milliseconds will be set
+//!                           automatically to 5 milliseconds.
+//!  @return      On success, select() returns the number of file descriptors
+//!             contained in the three returned descriptor sets (that is, the
+//!             total number of bits that are set in readfds, writefds,
+//!             exceptfds) which may be zero if the timeout expires before
+//!             anything interesting  happens.
+//!             On error, -1 is returned.
+//!                   *readsds - return the sockets on which Read request will
+//!                              return without delay with valid data.
+//!                   *writesds - return the sockets on which Write request 
+//!                                 will return without delay.
+//!                   *exceptsds - return the sockets which closed recently.
+//!
+//!  @brief  Monitor socket activity  
+//!          Select allow a program to monitor multiple file descriptors,
+//!          waiting until one or more of the file descriptors become 
+//!         "ready" for some class of I/O operation 
+//!
+//!  @Note   If the timeout value set to less than 5ms it will automatically set
+//!          to 5ms to prevent overload of the system
+//!
+//!  @sa socket
+//
+//*****************************************************************************
+
+int select(long nfds, fd_set *readsds, fd_set *writesds, fd_set *exceptsds, struct timeval *timeout)
+{
+    unsigned char *ptr, *args;
+    tBsdSelectRecvParams tParams;
+    unsigned long is_blocking;
+    
+    if( timeout == NULL)
+    {
+        is_blocking = 1; /* blocking , infinity timeout */
+    }
+    else
+    {
+        is_blocking = 0; /* no blocking, timeout */
+    }
+    
+    // Fill in HCI packet structure
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, nfds);
+    args = UINT32_TO_STREAM(args, 0x00000014);
+    args = UINT32_TO_STREAM(args, 0x00000014);
+    args = UINT32_TO_STREAM(args, 0x00000014);
+    args = UINT32_TO_STREAM(args, 0x00000014);
+    args = UINT32_TO_STREAM(args, is_blocking);
+    args = UINT32_TO_STREAM(args, ((readsds) ? *(unsigned long*)readsds : 0));
+    args = UINT32_TO_STREAM(args, ((writesds) ? *(unsigned long*)writesds : 0));
+    args = UINT32_TO_STREAM(args, ((exceptsds) ? *(unsigned long*)exceptsds : 0));
+    
+    if (timeout)
+    {
+        if ( 0 == timeout->tv_sec && timeout->tv_usec < SELECT_TIMEOUT_MIN_MICRO_SECONDS)
+        {
+            timeout->tv_usec = SELECT_TIMEOUT_MIN_MICRO_SECONDS;
+        }
+        args = UINT32_TO_STREAM(args, timeout->tv_sec);
+        args = UINT32_TO_STREAM(args, timeout->tv_usec);
+    }
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_BSD_SELECT, ptr, SOCKET_SELECT_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_EVNT_SELECT, &tParams);
+    
+    // Update actually read FD
+    if (tParams.iStatus >= 0)
+    {
+        if (readsds)
+        {
+            memcpy(readsds, &tParams.uiRdfd, sizeof(tParams.uiRdfd));
+        }
+        
+        if (writesds)
+        {
+            memcpy(writesds, &tParams.uiWrfd, sizeof(tParams.uiWrfd)); 
+        }
+        
+        if (exceptsds)
+        {
+            memcpy(exceptsds, &tParams.uiExfd, sizeof(tParams.uiExfd)); 
+        }
+        
+        return(tParams.iStatus);
+        
+    }
+    else
+    {
+        errno = tParams.iStatus;
+        return(-1);
+    }
+}
+
+//*****************************************************************************
+//
+//! setsockopt
+//!
+//!  @param[in]   sd          socket handle
+//!  @param[in]   level       defines the protocol level for this option
+//!  @param[in]   optname     defines the option name to Interrogate
+//!  @param[in]   optval      specifies a value for the option
+//!  @param[in]   optlen      specifies the length of the option value
+//!  @return      On success, zero is returned. On error, -1 is returned
+//!
+//!  @brief  set socket options
+//!          This function manipulate the options associated with a socket.
+//!          Options may exist at multiple protocol levels; they are always
+//!          present at the uppermost socket level.
+//!          When manipulating socket options the level at which the option 
+//!          resides and the name of the option must be specified.  
+//!          To manipulate options at the socket level, level is specified as 
+//!          SOL_SOCKET. To manipulate options at any other level the protocol 
+//!          number of the appropriate protocol controlling the option is 
+//!          supplied. For example, to indicate that an option is to be 
+//!          interpreted by the TCP protocol, level should be set to the 
+//!          protocol number of TCP; 
+//!          The parameters optval and optlen are used to access optval - 
+//!          use for setsockopt(). For getsockopt() they identify a buffer
+//!          in which the value for the requested option(s) are to 
+//!          be returned. For getsockopt(), optlen is a value-result 
+//!          parameter, initially containing the size of the buffer 
+//!          pointed to by option_value, and modified on return to 
+//!          indicate the actual size of the value returned. If no option 
+//!          value is to be supplied or returned, option_value may be NULL.
+//!
+//!  @Note   On this version the following two socket options are enabled:
+//!                 The only protocol level supported in this version
+//!          is SOL_SOCKET (level).
+//!               1. SOCKOPT_RECV_TIMEOUT (optname)
+//!                  SOCKOPT_RECV_TIMEOUT configures recv and recvfrom timeout 
+//!           in milliseconds.
+//!                In that case optval should be pointer to unsigned long.
+//!               2. SOCKOPT_NONBLOCK (optname). sets the socket non-blocking mode on 
+//!           or off.
+//!                In that case optval should be SOCK_ON or SOCK_OFF (optval).
+//!
+//!  @sa getsockopt
+//
+//*****************************************************************************
+
+#ifndef CC3000_TINY_DRIVER
+int setsockopt(long sd, long level, long optname, const void *optval, socklen_t optlen)
+{
+    int ret;
+    unsigned char *ptr, *args;
+    
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, sd);
+    args = UINT32_TO_STREAM(args, level);
+    args = UINT32_TO_STREAM(args, optname);
+    args = UINT32_TO_STREAM(args, 0x00000008);
+    args = UINT32_TO_STREAM(args, optlen);
+    ARRAY_TO_STREAM(args, ((unsigned char *)optval), optlen);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_SETSOCKOPT, ptr, SOCKET_SET_SOCK_OPT_PARAMS_LEN  + optlen);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_SETSOCKOPT, &ret);
+    
+    if (ret >= 0)
+    {
+        return (0);
+    }
+    else
+    {
+        errno = ret;
+        return (-1);
+    }
+}
+#endif
+
+//*****************************************************************************
+//
+//! getsockopt
+//!
+//!  @param[in]   sd          socket handle
+//!  @param[in]   level       defines the protocol level for this option
+//!  @param[in]   optname     defines the option name to Interrogate
+//!  @param[out]   optval      specifies a value for the option
+//!  @param[out]   optlen      specifies the length of the option value
+//!  @return      On success, zero is returned. On error, -1 is returned
+//!
+//!  @brief  set socket options
+//!          This function manipulate the options associated with a socket.
+//!          Options may exist at multiple protocol levels; they are always
+//!          present at the uppermost socket level.
+//!          When manipulating socket options the level at which the option 
+//!          resides and the name of the option must be specified.  
+//!          To manipulate options at the socket level, level is specified as 
+//!          SOL_SOCKET. To manipulate options at any other level the protocol 
+//!          number of the appropriate protocol controlling the option is 
+//!          supplied. For example, to indicate that an option is to be 
+//!          interpreted by the TCP protocol, level should be set to the 
+//!          protocol number of TCP; 
+//!          The parameters optval and optlen are used to access optval - 
+//!          use for setsockopt(). For getsockopt() they identify a buffer
+//!          in which the value for the requested option(s) are to 
+//!          be returned. For getsockopt(), optlen is a value-result 
+//!          parameter, initially containing the size of the buffer 
+//!          pointed to by option_value, and modified on return to 
+//!          indicate the actual size of the value returned. If no option 
+//!          value is to be supplied or returned, option_value may be NULL.
+//!
+//!  @Note   On this version the following two socket options are enabled:
+//!                 The only protocol level supported in this version
+//!          is SOL_SOCKET (level).
+//!               1. SOCKOPT_RECV_TIMEOUT (optname)
+//!                  SOCKOPT_RECV_TIMEOUT configures recv and recvfrom timeout 
+//!           in milliseconds.
+//!                In that case optval should be pointer to unsigned long.
+//!               2. SOCKOPT_NONBLOCK (optname). sets the socket non-blocking mode on 
+//!           or off.
+//!                In that case optval should be SOCK_ON or SOCK_OFF (optval).
+//!
+//!  @sa setsockopt
+//
+//*****************************************************************************
+
+int
+getsockopt (long sd, long level, long optname, void *optval, socklen_t *optlen)
+{
+    unsigned char *ptr, *args;
+    tBsdGetSockOptReturnParams  tRetParams;
+    
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, sd);
+    args = UINT32_TO_STREAM(args, level);
+    args = UINT32_TO_STREAM(args, optname);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_GETSOCKOPT, ptr, SOCKET_GET_SOCK_OPT_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_CMND_GETSOCKOPT, &tRetParams);
+    
+    if (((signed char)tRetParams.iStatus) >= 0)
+    {
+        *optlen = 4;
+        memcpy(optval, tRetParams.ucOptValue, 4);
+        return (0);
+    }
+    else
+    {
+        errno = tRetParams.iStatus;
+        return (-1);
+    }
+}
+
+//*****************************************************************************
+//
+//!  simple_link_recv
+//!
+//!  @param sd       socket handle
+//!  @param buf      read buffer
+//!  @param len      buffer length
+//!  @param flags    indicates blocking or non-blocking operation
+//!  @param from     pointer to an address structure indicating source address
+//!  @param fromlen  source address structure size
+//!
+//!  @return         Return the number of bytes received, or -1 if an error
+//!                  occurred
+//!
+//!  @brief          Read data from socket
+//!                  Return the length of the message on successful completion.
+//!                  If a message is too long to fit in the supplied buffer,
+//!                  excess bytes may be discarded depending on the type of
+//!                  socket the message is received from
+//
+//*****************************************************************************
+int simple_link_recv(long sd, void *buf, long len, long flags, sockaddr *from, socklen_t *fromlen, long opcode)
+{
+    unsigned char *ptr, *args;
+    tBsdReadReturnParams tSocketReadEvent;
+    
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_CMD);
+    
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, sd);
+    args = UINT32_TO_STREAM(args, len);
+    args = UINT32_TO_STREAM(args, flags);
+    
+    // Generate the read command, and wait for the 
+    hci_command_send(opcode,  ptr, SOCKET_RECV_FROM_PARAMS_LEN);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(opcode, &tSocketReadEvent);
+    
+    // In case the number of bytes is more then zero - read data
+    if (tSocketReadEvent.iNumberOfBytes > 0)
+    {
+        // Wait for the data in a synchronous way. Here we assume that the bug is 
+        // big enough to store also parameters of receive from too....
+        SimpleLinkWaitData((unsigned char *)buf, (unsigned char *)from, (unsigned char *)fromlen);
+    }
+    
+    errno = tSocketReadEvent.iNumberOfBytes;
+    
+    return(tSocketReadEvent.iNumberOfBytes);
+}
+
+//*****************************************************************************
+//
+//!  recv
+//!
+//!  @param[in]  sd     socket handle
+//!  @param[out] buf    Points to the buffer where the message should be stored
+//!  @param[in]  len    Specifies the length in bytes of the buffer pointed to 
+//!                     by the buffer argument.
+//!  @param[in] flags   Specifies the type of message reception. 
+//!                     On this version, this parameter is not supported.
+//!
+//!  @return         Return the number of bytes received, or -1 if an error
+//!                  occurred
+//!
+//!  @brief          function receives a message from a connection-mode socket
+//!
+//!  @sa recvfrom
+//!
+//!  @Note On this version, only blocking mode is supported.
+//
+//*****************************************************************************
+
+int recv(long sd, void *buf, long len, long flags)
+{
+    return(simple_link_recv(sd, buf, len, flags, NULL, NULL, HCI_CMND_RECV));
+}
+
+//*****************************************************************************
+//
+//!  recvfrom
+//!
+//!  @param[in]  sd     socket handle
+//!  @param[out] buf    Points to the buffer where the message should be stored
+//!  @param[in]  len    Specifies the length in bytes of the buffer pointed to 
+//!                     by the buffer argument.
+//!  @param[in] flags   Specifies the type of message reception. 
+//!                     On this version, this parameter is not supported.
+//!  @param[in] from   pointer to an address structure indicating the source
+//!                    address: sockaddr. On this version only AF_INET is
+//!                    supported.
+//!  @param[in] fromlen   source address tructure size
+//!
+//!  @return         Return the number of bytes received, or -1 if an error
+//!                  occurred
+//!
+//!  @brief         read data from socket
+//!                 function receives a message from a connection-mode or
+//!                 connectionless-mode socket. Note that raw sockets are not
+//!                 supported.
+//!
+//!  @sa recv
+//!
+//!  @Note On this version, only blocking mode is supported.
+//
+//*****************************************************************************
+int recvfrom(long sd, void *buf, long len, long flags, sockaddr *from, socklen_t *fromlen)
+{
+    return(simple_link_recv(sd, buf, len, flags, from, fromlen, HCI_CMND_RECVFROM));
+}
+
+//*****************************************************************************
+//
+//!  simple_link_send
+//!
+//!  @param sd       socket handle
+//!  @param buf      write buffer
+//!  @param len      buffer length
+//!  @param flags    On this version, this parameter is not supported
+//!  @param to       pointer to an address structure indicating destination
+//!                  address
+//!  @param tolen    destination address structure size
+//!
+//!  @return         Return the number of bytes transmitted, or -1 if an error
+//!                  occurred, or -2 in case there are no free buffers available
+//!                 (only when SEND_NON_BLOCKING is enabled)
+//!
+//!  @brief          This function is used to transmit a message to another
+//!                  socket
+//
+//*****************************************************************************
+int simple_link_send(long sd, const void *buf, long len, long flags, const sockaddr *to, long tolen, long opcode)
+{    
+    unsigned char uArgSize = 0x00,  addrlen = 0x00;
+    unsigned char *ptr, *pDataPtr = NULL, *args;
+    unsigned long addr_offset = 0x00;
+    int res;
+    
+    // Check the bsd_arguments
+    if (0 != (res = HostFlowControlConsumeBuff(sd)))
+    {
+        return res;
+    }
+    
+    //Update the number of sent packets
+    tSLInformation.NumberOfSentPackets++;
+    
+    // Allocate a buffer and construct a packet and send it over spi
+    ptr = tSLInformation.pucTxCommandBuffer;
+    args = (ptr + HEADERS_SIZE_DATA);
+    
+    // Update the offset of data and parameters according to the command
+    switch(opcode)
+    { 
+    case HCI_CMND_SENDTO:
+        {
+            addr_offset = len + sizeof(len) + sizeof(len);
+            addrlen = 8;
+            uArgSize = SOCKET_SENDTO_PARAMS_LEN;
+            pDataPtr = ptr + HEADERS_SIZE_DATA + SOCKET_SENDTO_PARAMS_LEN;
+            break;
+        }
+        
+    case HCI_CMND_SEND:
+        {
+            tolen = 0;
+            to = NULL;
+            uArgSize = HCI_CMND_SEND_ARG_LENGTH;
+            pDataPtr = ptr + HEADERS_SIZE_DATA + HCI_CMND_SEND_ARG_LENGTH;
+            break;
+        }
+        
+    default:
+        {
+            break;
+        }
+    }
+    
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, sd);
+    args = UINT32_TO_STREAM(args, uArgSize - sizeof(sd));
+    args = UINT32_TO_STREAM(args, len);
+    args = UINT32_TO_STREAM(args, flags);
+    
+    if (opcode == HCI_CMND_SENDTO)
+    {
+        args = UINT32_TO_STREAM(args, addr_offset);
+        args = UINT32_TO_STREAM(args, addrlen);
+    }
+    
+    // Copy the data received from user into the TX Buffer
+    ARRAY_TO_STREAM(pDataPtr, ((unsigned char *)buf), len);
+    
+    // In case we are using SendTo, copy the to parameters
+    if (opcode == HCI_CMND_SENDTO)
+    {    
+        ARRAY_TO_STREAM(pDataPtr, ((unsigned char *)to), tolen);
+    }
+    
+    // Initiate a HCI command
+    hci_data_send(opcode, ptr, uArgSize, len,(unsigned char*)to, tolen);
+    
+    return    (len);
+}
+
+
+//*****************************************************************************
+//
+//!  send
+//!
+//!  @param sd       socket handle
+//!  @param buf      Points to a buffer containing the message to be sent
+//!  @param len      message size in bytes
+//!  @param flags    On this version, this parameter is not supported
+//!
+//!  @return         Return the number of bytes transmitted, or -1 if an
+//!                  error occurred
+//!
+//!  @brief          Write data to TCP socket
+//!                  This function is used to transmit a message to another 
+//!                  socket.
+//!
+//!  @Note           On this version, only blocking mode is supported.
+//!
+//!  @sa             sendto
+//
+//*****************************************************************************
+
+int send(long sd, const void *buf, long len, long flags)
+{
+    return(simple_link_send(sd, buf, len, flags, NULL, 0, HCI_CMND_SEND));
+}
+
+//*****************************************************************************
+//
+//!  sendto
+//!
+//!  @param sd       socket handle
+//!  @param buf      Points to a buffer containing the message to be sent
+//!  @param len      message size in bytes
+//!  @param flags    On this version, this parameter is not supported
+//!  @param to       pointer to an address structure indicating the destination
+//!                  address: sockaddr. On this version only AF_INET is
+//!                  supported.
+//!  @param tolen    destination address structure size
+//!
+//!  @return         Return the number of bytes transmitted, or -1 if an
+//!                  error occurred
+//!
+//!  @brief          Write data to TCP socket
+//!                  This function is used to transmit a message to another 
+//!                  socket.
+//!
+//!  @Note           On this version, only blocking mode is supported.
+//!
+//!  @sa             send
+//
+//*****************************************************************************
+
+int sendto(long sd, const void *buf, long len, long flags, const sockaddr *to, socklen_t tolen)
+{
+    return(simple_link_send(sd, buf, len, flags, to, tolen, HCI_CMND_SENDTO));
+}
+
+//*****************************************************************************
+//
+//!  mdnsAdvertiser
+//!
+//!  @param[in] mdnsEnabled         flag to enable/disable the mDNS feature
+//!  @param[in] deviceServiceName   Service name as part of the published
+//!                                 canonical domain name
+//!  @param[in] deviceServiceNameLength   Length of the service name
+//!  
+//!
+//!  @return   On success, zero is returned, return SOC_ERROR if socket was not 
+//!            opened successfully, or if an error occurred.
+//!
+//!  @brief    Set CC3000 in mDNS advertiser mode in order to advertise itself.
+//
+//*****************************************************************************
+
+int mdnsAdvertiser(unsigned short mdnsEnabled, char * deviceServiceName, unsigned short deviceServiceNameLength)
+{
+    int ret;
+     unsigned char *pTxBuffer, *pArgs;
+    
+    if (deviceServiceNameLength > MDNS_DEVICE_SERVICE_MAX_LENGTH)
+    {
+        return EFAIL;
+    }
+    
+    pTxBuffer = tSLInformation.pucTxCommandBuffer;
+    pArgs = (pTxBuffer + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE);
+    
+    // Fill in HCI packet structure
+    pArgs = UINT32_TO_STREAM(pArgs, mdnsEnabled);
+    pArgs = UINT32_TO_STREAM(pArgs, 8);
+    pArgs = UINT32_TO_STREAM(pArgs, deviceServiceNameLength);
+    ARRAY_TO_STREAM(pArgs, deviceServiceName, deviceServiceNameLength);
+    
+    // Initiate a HCI command
+    hci_command_send(HCI_CMND_MDNS_ADVERTISE, pTxBuffer, SOCKET_MDNS_ADVERTISE_PARAMS_LEN + deviceServiceNameLength);
+    
+    // Since we are in blocking state - wait for event complete
+    SimpleLinkWaitEvent(HCI_EVNT_MDNS_ADVERTISE, &ret);
+    
+    return ret;
+    
+}
+
+
+