/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

// Implementation of recvmsg.c

#include <sys/cdefs.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <errno.h>

#include <stdlib.h>

#include <string.h>

EXPORT_C int

recvmsg(int fd, struct msghdr *message, int flags)

	{

    ssize_t ret = 0;

	ssize_t readSize;

    size_t msgsize = 0;

    char *rcv_buffer;

	char *tempBuffer;

    struct iovec *data_vector = message->msg_iov;

    int vector_index;

	ssize_t cnt;

    for(vector_index = 0; vector_index < message->msg_iovlen; vector_index++)

		{

		msgsize = msgsize + data_vector[vector_index].iov_len;

		}

	if (msgsize <= 0)

    	{

    	return 0;

    	}

    rcv_buffer = (char*)malloc(msgsize);

    if (rcv_buffer == 0) 

		{

		errno = ENOMEM;

		return -1;

		}

    readSize = ret = recvfrom (fd, rcv_buffer, msgsize, flags, message->msg_name, &message->msg_namelen);

    tempBuffer = rcv_buffer;

    while (readSize > 0) 

		{

		if (readSize < data_vector->iov_len)

			{

			cnt = readSize;

			}

		else

			{

			cnt = data_vector->iov_len;

			}

		memcpy (data_vector->iov_base, tempBuffer, cnt);

		tempBuffer += cnt;

		readSize -= cnt;

		data_vector++;

		}

    free(rcv_buffer);

    return ret;

	}