/**************************************************************************
 *
 * Copyright (c) 2000-2003 Intel Corporation
 * All rights reserved.
 *
 * 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 name of Intel Corporation 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 INTEL 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 SSDPlib
 *
 * @{
 *
 * \file
 */

#include "Callback.h"
#include "LinkedList.h"
#include "TimerThread.h"
#include "UpnpDiscovery.h"
#include "UpnpString.h"
#include "config.h"

#include "ithread.h"
#include "membuffer.h"
#include "upnp.h"
#include "upnpdebug.h"
#include "upnpdebug_internal.h"
#include "upnputil.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>

#ifndef _WIN32
	#include <poll.h>
	#define _poll(fds, nfds, timeout) poll(fds, nfds, timeout)
#endif

#ifdef INCLUDE_CLIENT_APIS
	#if EXCLUDE_SSDP == 0

		#include "SSDPResultData.h"
		#include "SSDPResultDataCallback.h"
		#include "ThreadPool.h"
		#include "UpnpInet.h"
		#include "httpparser.h"
		#include "ssdplib.h"
		#include "statcodes.h"
		#include "upnpapi.h"

		#include <stdio.h>

		#include "posix_overwrites.h" // IWYU pragma: keep

/*!
 * \brief Sends a callback to the control point application with a SEARCH
 * result.
 */
static void send_search_result(
	/* [in] Search reply from the device. */
	void *data)
{
	SSDPResultData *temp = (SSDPResultData *)data;

	SSDPResultData_Callback(temp);
	SSDPResultData_delete(temp);
}

void ssdp_handle_ctrlpt_msg(
	http_message_t *hmsg, struct sockaddr_storage *dest_addr, int timeout)
{
	int handle;
	int handle_start;
	struct Handle_Info *ctrlpt_info = NULL;
	memptr hdr_value;
	/* byebye or alive */
	int is_byebye;
	UpnpDiscovery *param = UpnpDiscovery_new();
	int expires;
	int ret;
	SsdpEvent event;
	int nt_found;
	int usn_found;
	int st_found;
	char save_char;
	Upnp_EventType event_type;
	Upnp_FunPtr ctrlpt_callback;
	void *ctrlpt_cookie;
	ListNode *node = NULL;
	SsdpSearchArg *searchArg = NULL;
	int matched = 0;
	SSDPResultData *threadData = NULL;
	ThreadPoolJob job;

	/* we are assuming that there can be only one client supported at a time
	 */
	HandleReadLock(__FILE__, __LINE__);

	if (GetClientHandleInfo(&handle_start, &ctrlpt_info) != HND_CLIENT) {
		HandleUnlock(__FILE__, __LINE__);
		goto end_ssdp_handle_ctrlpt_msg;
	}
	HandleUnlock(__FILE__, __LINE__);
	/* search timeout */
	if (timeout) {
		for (handle = handle_start; handle < NUM_HANDLE; handle++) {
			HandleLock(__FILE__, __LINE__);

			/* get client info */
			if (GetHandleInfo(handle, &ctrlpt_info) != HND_CLIENT) {
				HandleUnlock(__FILE__, __LINE__);
				continue;
			}
			/* copy */
			ctrlpt_callback = ctrlpt_info->Callback;
			ctrlpt_cookie = ctrlpt_info->Cookie;
			HandleUnlock(__FILE__, __LINE__);

			ctrlpt_callback(UPNP_DISCOVERY_SEARCH_TIMEOUT,
				NULL,
				ctrlpt_cookie);
		}
		goto end_ssdp_handle_ctrlpt_msg;
	}

	UpnpDiscovery_set_ErrCode(param, UPNP_E_SUCCESS);
	/* MAX-AGE, assume error */
	expires = -1;
	UpnpDiscovery_set_Expires(param, expires);
	if (httpmsg_find_hdr(hmsg, HDR_CACHE_CONTROL, &hdr_value) != NULL) {
		ret = matchstr(hdr_value.buf,
			hdr_value.length,
			"%imax-age = %d%0",
			&expires);
		UpnpDiscovery_set_Expires(param, expires);
		if (ret != PARSE_OK)
			goto end_ssdp_handle_ctrlpt_msg;
	}
	/* DATE */
	if (httpmsg_find_hdr(hmsg, HDR_DATE, &hdr_value) != NULL) {
		UpnpDiscovery_strcpy_Date(param, hdr_value.buf);
	}
	/* dest addr */
	UpnpDiscovery_set_DestAddr(param, dest_addr);
	/* EXT */
	if (httpmsg_find_hdr(hmsg, HDR_EXT, &hdr_value) != NULL) {
		UpnpDiscovery_strncpy_Ext(
			param, hdr_value.buf, hdr_value.length);
	}
	/* LOCATION */
	if (httpmsg_find_hdr(hmsg, HDR_LOCATION, &hdr_value) != NULL) {
		UpnpDiscovery_strncpy_Location(
			param, hdr_value.buf, hdr_value.length);
	}
	/* SERVER / USER-AGENT */
	if (httpmsg_find_hdr(hmsg, HDR_SERVER, &hdr_value) != NULL ||
		httpmsg_find_hdr(hmsg, HDR_USER_AGENT, &hdr_value) != NULL) {
		UpnpDiscovery_strncpy_Os(
			param, hdr_value.buf, hdr_value.length);
	}
	/* clear everything */
	event.UDN[0] = '\0';
	event.DeviceType[0] = '\0';
	event.ServiceType[0] = '\0';
	nt_found = 0;
	if (httpmsg_find_hdr(hmsg, HDR_NT, &hdr_value) != NULL) {
		save_char = hdr_value.buf[hdr_value.length];
		hdr_value.buf[hdr_value.length] = '\0';
		nt_found = (ssdp_request_type(hdr_value.buf, &event) == 0);
		hdr_value.buf[hdr_value.length] = save_char;
	}
	usn_found = 0;
	if (httpmsg_find_hdr(hmsg, HDR_USN, &hdr_value) != NULL) {
		save_char = hdr_value.buf[hdr_value.length];
		hdr_value.buf[hdr_value.length] = '\0';
		usn_found = (unique_service_name(hdr_value.buf, &event) == 0);
		hdr_value.buf[hdr_value.length] = save_char;
	}
	if (nt_found || usn_found) {
		UpnpDiscovery_strcpy_DeviceID(param, event.UDN);
		UpnpDiscovery_strcpy_DeviceType(param, event.DeviceType);
		UpnpDiscovery_strcpy_ServiceType(param, event.ServiceType);
	}
	/* ADVERT. OR BYEBYE */
	if (hmsg->is_request) {
		/* use NTS hdr to determine advert., or byebye */
		if (httpmsg_find_hdr(hmsg, HDR_NTS, &hdr_value) == NULL) {
			/* error; NTS header not found */
			goto end_ssdp_handle_ctrlpt_msg;
		}
		if (memptr_cmp(&hdr_value, "ssdp:alive") == 0) {
			is_byebye = 0;
		} else if (memptr_cmp(&hdr_value, "ssdp:byebye") == 0) {
			is_byebye = 1;
		} else {
			/* bad value */
			goto end_ssdp_handle_ctrlpt_msg;
		}
		if (is_byebye) {
			/* check device byebye */
			if (!nt_found || !usn_found) {
				/* bad byebye */
				goto end_ssdp_handle_ctrlpt_msg;
			}
			event_type = UPNP_DISCOVERY_ADVERTISEMENT_BYEBYE;
		} else {
			/* check advertisement.
			 * Expires is valid if positive. This is for testing
			 * only. Expires should be greater than 1800 (30 mins)
			 */
			if (!nt_found || !usn_found ||
				UpnpString_get_Length(
					UpnpDiscovery_get_Location(param)) ==
					0 ||
				UpnpDiscovery_get_Expires(param) <= 0) {
				/* bad advertisement */
				goto end_ssdp_handle_ctrlpt_msg;
			}
			event_type = UPNP_DISCOVERY_ADVERTISEMENT_ALIVE;
		}
		/* call callback */
		for (handle = handle_start; handle < NUM_HANDLE; handle++) {
			HandleLock(__FILE__, __LINE__);

			/* get client info */
			if (GetHandleInfo(handle, &ctrlpt_info) != HND_CLIENT) {
				HandleUnlock(__FILE__, __LINE__);
				continue;
			}
			/* copy */
			ctrlpt_callback = ctrlpt_info->Callback;
			ctrlpt_cookie = ctrlpt_info->Cookie;
			HandleUnlock(__FILE__, __LINE__);

			ctrlpt_callback(event_type, param, ctrlpt_cookie);
		}
	} else {
		/* reply (to a SEARCH) */
		/* only checking to see if there is a valid ST header */
		st_found = 0;
		if (httpmsg_find_hdr(hmsg, HDR_ST, &hdr_value) != NULL) {
			save_char = hdr_value.buf[hdr_value.length];
			hdr_value.buf[hdr_value.length] = '\0';
			st_found =
				ssdp_request_type(hdr_value.buf, &event) == 0;
			hdr_value.buf[hdr_value.length] = save_char;
		}
		if (hmsg->status_code != HTTP_OK ||
			UpnpDiscovery_get_Expires(param) <= 0 ||
			UpnpString_get_Length(
				UpnpDiscovery_get_Location(param)) == 0 ||
			!usn_found || !st_found) {
			/* bad reply */
			goto end_ssdp_handle_ctrlpt_msg;
		}
		/* check each current search */
		for (handle = handle_start; handle < NUM_HANDLE; handle++) {
			HandleLock(__FILE__, __LINE__);

			/* get client info */
			if (GetHandleInfo(handle, &ctrlpt_info) != HND_CLIENT) {
				HandleUnlock(__FILE__, __LINE__);
				continue;
			}
			/* copy */
			ctrlpt_callback = ctrlpt_info->Callback;
			ctrlpt_cookie = ctrlpt_info->Cookie;

			node = ListHead(&ctrlpt_info->SsdpSearchList);
			/* temporary add null termination */
			/*save_char = hdr_value.buf[ hdr_value.length ]; */
			/*hdr_value.buf[ hdr_value.length ] = '\0'; */
			while (node != NULL) {
				searchArg = node->item;
				/* check for match of ST header and search
				 * target */
				switch (searchArg->requestType) {
				case SSDP_ALL:
					matched = 1;
					break;
				case SSDP_ROOTDEVICE:
					matched = (event.RequestType ==
						   SSDP_ROOTDEVICE);
					break;
				case SSDP_DEVICEUDN:
					matched = !strncmp(
						searchArg->searchTarget,
						hdr_value.buf,
						hdr_value.length);
					break;
				case SSDP_DEVICETYPE: {
					size_t m = min(hdr_value.length,
						strlen(searchArg->searchTarget));
					matched = !strncmp(
						searchArg->searchTarget,
						hdr_value.buf,
						m);
					break;
				}
				case SSDP_SERVICE: {
					size_t m = min(hdr_value.length,
						strlen(searchArg->searchTarget));
					matched = !strncmp(
						searchArg->searchTarget,
						hdr_value.buf,
						m);
					break;
				}
				default:
					matched = 0;
					break;
				}
				if (matched) {
					/* schedule call back */
					threadData = SSDPResultData_new();
					if (threadData != NULL) {
						SSDPResultData_set_Param(
							threadData, param);
						SSDPResultData_set_Cookie(
							threadData,
							searchArg->cookie);
						SSDPResultData_set_CtrlptCallback(
							threadData,
							ctrlpt_callback);
						memset(&job, 0, sizeof(job));

						TPJobInit(&job,
							(start_routine)
								send_search_result,
							threadData);
						TPJobSetPriority(
							&job, MED_PRIORITY);
						TPJobSetFreeFunction(&job,
							(free_routine)free);
						if (ThreadPoolAdd(
							    &gRecvThreadPool,
							    &job,
							    NULL) != 0) {
							SSDPResultData_delete(
								threadData);
						}
					}
				}
				node = ListNext(
					&ctrlpt_info->SsdpSearchList, node);
			}

			HandleUnlock(__FILE__, __LINE__);
			/*ctrlpt_callback( UPNP_DISCOVERY_SEARCH_RESULT, param,
			 * ctrlpt_cookie ); */
		}
	}

end_ssdp_handle_ctrlpt_msg:
	UpnpDiscovery_delete(param);
}

/*!
 * \brief Creates a HTTP search request packet depending on the input
 * parameter.
 */
static int CreateClientRequestPacket(
	/*! [in,out] Output string in HTTP format. */
	char *RqstBuf,
	/*! [in] RqstBuf size. */
	size_t RqstBufSize,
	/*! [in] Search Target. */
	int Mx,
	/*! [in] Number of seconds to wait to collect all the responses. */
	char *SearchTarget,
	/*! [in] search address family. */
	int AddressFamily)
{
	int rc;
	size_t offset = 0;

	switch (AddressFamily) {
	case AF_INET:
		rc = snprintf(RqstBuf,
			RqstBufSize,
			"M-SEARCH * HTTP/1.1\r\n"
			"HOST: %s:%d\r\n"
			"MAN: \"ssdp:discover\"\r\n",
			SSDP_IP,
			SSDP_PORT);
		break;
	case AF_INET6:
		rc = snprintf(RqstBuf,
			RqstBufSize,
			"M-SEARCH * HTTP/1.1\r\n"
			"HOST: [%s]:%d\r\n"
			"MAN: \"ssdp:discover\"\r\n",
			SSDP_IPV6_LINKLOCAL,
			SSDP_PORT);
		break;
	default:
		return UPNP_E_INVALID_ARGUMENT;
	}
	if (rc < 0 || (size_t)rc >= RqstBufSize)
		return UPNP_E_INTERNAL_ERROR;
	offset = (size_t)rc;

	if (Mx > 0) {
		rc = snprintf(RqstBuf + offset,
			RqstBufSize - offset,
			"MX: %d\r\n",
			Mx);
		if (rc < 0 || (size_t)rc >= RqstBufSize - offset)
			return UPNP_E_BUFFER_TOO_SMALL;
		offset += (size_t)rc;
	}

	if (SearchTarget) {
		rc = snprintf(RqstBuf + offset,
			RqstBufSize - offset,
			"ST: %s\r\n",
			SearchTarget);
		if (rc < 0 || (size_t)rc >= RqstBufSize - offset)
			return UPNP_E_BUFFER_TOO_SMALL;
		offset += (size_t)rc;
	}

	rc = snprintf(RqstBuf + offset, RqstBufSize - offset, "\r\n");
	if (rc < 0 || (size_t)rc >= RqstBufSize - offset)
		return UPNP_E_BUFFER_TOO_SMALL;

	return UPNP_E_SUCCESS;
}

		/*!
		 * \brief
		 */
		#ifdef UPNP_ENABLE_IPV6
static int CreateClientRequestPacketUlaGua(
	/*! [in,out] . */
	char *RqstBuf,
	/*! [in] . */
	size_t RqstBufSize,
	/*! [in] . */
	int Mx,
	/*! [in] . */
	char *SearchTarget,
	/*! [in] . */
	int AddressFamily)
{
	int rc;
	size_t offset = 0;

	switch (AddressFamily) {
	case AF_INET:
		rc = snprintf(RqstBuf,
			RqstBufSize,
			"M-SEARCH * HTTP/1.1\r\n"
			"HOST: %s:%d\r\n"
			"MAN: \"ssdp:discover\"\r\n",
			SSDP_IP,
			SSDP_PORT);
		break;
	case AF_INET6:
		rc = snprintf(RqstBuf,
			RqstBufSize,
			"M-SEARCH * HTTP/1.1\r\n"
			"HOST: [%s]:%d\r\n"
			"MAN: \"ssdp:discover\"\r\n",
			SSDP_IPV6_SITELOCAL,
			SSDP_PORT);
		break;
	default:
		return UPNP_E_INVALID_ARGUMENT;
	}
	if (rc < 0 || (size_t)rc >= RqstBufSize)
		return UPNP_E_INTERNAL_ERROR;
	offset = (size_t)rc;

	if (Mx > 0) {
		rc = snprintf(RqstBuf + offset,
			RqstBufSize - offset,
			"MX: %d\r\n",
			Mx);
		if (rc < 0 || (size_t)rc >= RqstBufSize - offset)
			return UPNP_E_BUFFER_TOO_SMALL;
		offset += (size_t)rc;
	}

	if (SearchTarget) {
		rc = snprintf(RqstBuf + offset,
			RqstBufSize - offset,
			"ST: %s\r\n",
			SearchTarget);
		if (rc < 0 || (size_t)rc >= RqstBufSize - offset)
			return UPNP_E_BUFFER_TOO_SMALL;
		offset += (size_t)rc;
	}

	rc = snprintf(RqstBuf + offset, RqstBufSize - offset, "\r\n");
	if (rc < 0 || (size_t)rc >= RqstBufSize - offset)
		return UPNP_E_BUFFER_TOO_SMALL;

	return UPNP_E_SUCCESS;
}
		#endif /* UPNP_ENABLE_IPV6 */

/*!
 * \brief
 */
static void searchExpired(
	/* [in] . */
	void *arg)
{
	int id = ((SsdpSearchExpArg *)arg)->timeoutEventId;
	int handle = ((SsdpSearchExpArg *)arg)->handle;
	struct Handle_Info *ctrlpt_info = NULL;

	/* remove search Target from list and call client back */
	ListNode *node = NULL;
	SsdpSearchArg *item;
	Upnp_FunPtr ctrlpt_callback;
	void *cookie = NULL;
	int found = 0;

	HandleLock(__FILE__, __LINE__);

	/* remove search target from search list */
	if (GetHandleInfo(handle, &ctrlpt_info) != HND_CLIENT) {
		free(arg);
		HandleUnlock(__FILE__, __LINE__);
		return;
	}
	ctrlpt_callback = ctrlpt_info->Callback;
	node = ListHead(&ctrlpt_info->SsdpSearchList);
	while (node != NULL) {
		item = (SsdpSearchArg *)node->item;
		if (item->timeoutEventId == id) {
			free(item->searchTarget);
			cookie = item->cookie;
			found = 1;
			item->searchTarget = NULL;
			free(item);
			ListDelNode(&ctrlpt_info->SsdpSearchList, node, 0);
			break;
		}
		node = ListNext(&ctrlpt_info->SsdpSearchList, node);
	}
	HandleUnlock(__FILE__, __LINE__);

	if (found)
		ctrlpt_callback(UPNP_DISCOVERY_SEARCH_TIMEOUT, NULL, cookie);

	free(arg);
}

int SearchByTarget(int Hnd, int Mx, char *St, void *Cookie)
{
	char errorBuffer[ERROR_BUFFER_LEN];
	int *id = NULL;
	int ret = 0;
	char ReqBufv4[BUFSIZE];
		#ifdef UPNP_ENABLE_IPV6
	char ReqBufv6[BUFSIZE];
	char ReqBufv6UlaGua[BUFSIZE];
		#endif
	struct sockaddr_storage __ss_v4;
		#ifdef UPNP_ENABLE_IPV6
	struct sockaddr_storage __ss_v6;
		#endif
	struct sockaddr_in *destAddr4 = (struct sockaddr_in *)&__ss_v4;
		#ifdef UPNP_ENABLE_IPV6
	struct sockaddr_in6 *destAddr6 = (struct sockaddr_in6 *)&__ss_v6;
		#endif
	SsdpSearchArg *newArg = NULL;
	SsdpSearchExpArg *expArg = NULL;
	int timeTillRead = 0;
	struct Handle_Info *ctrlpt_info = NULL;
	enum SsdpSearchType requestType;
	struct in_addr addrv4;
	int retVal;
		#ifdef _WIN32
	SOCKET max_fd = 0;
	fd_set wrSet;
		#else
	int numCopies;
		#endif

	/*ThreadData *ThData; */
	ThreadPoolJob job;

	if (strlen(gIF_IPV4) > (size_t)0 &&
		!inet_pton(AF_INET, gIF_IPV4, &addrv4)) {
		return UPNP_E_INVALID_PARAM;
	}

	memset(&job, 0, sizeof(job));

	requestType = ssdp_request_type1(St);
	if (requestType == SSDP_SERROR)
		return UPNP_E_INVALID_PARAM;
	UpnpPrintf(
		UPNP_INFO, SSDP, __FILE__, __LINE__, "Inside SearchByTarget\n");
	timeTillRead = Mx;
	if (timeTillRead < MIN_SEARCH_TIME)
		timeTillRead = MIN_SEARCH_TIME;
	else if (timeTillRead > MAX_SEARCH_TIME)
		timeTillRead = MAX_SEARCH_TIME;
	retVal = CreateClientRequestPacket(
		ReqBufv4, sizeof(ReqBufv4), timeTillRead, St, AF_INET);
	if (retVal != UPNP_E_SUCCESS)
		return retVal;
		#ifdef UPNP_ENABLE_IPV6
	retVal = CreateClientRequestPacket(
		ReqBufv6, sizeof(ReqBufv6), timeTillRead, St, AF_INET6);
	if (retVal != UPNP_E_SUCCESS)
		return retVal;
	retVal = CreateClientRequestPacketUlaGua(ReqBufv6UlaGua,
		sizeof(ReqBufv6UlaGua),
		timeTillRead,
		St,
		AF_INET6);
	if (retVal != UPNP_E_SUCCESS)
		return retVal;
		#endif

	memset(&__ss_v4, 0, sizeof(__ss_v4));
	destAddr4->sin_family = (sa_family_t)AF_INET;
	inet_pton(AF_INET, SSDP_IP, &destAddr4->sin_addr);
	destAddr4->sin_port = htons(SSDP_PORT);

		#ifdef UPNP_ENABLE_IPV6
	memset(&__ss_v6, 0, sizeof(__ss_v6));
	destAddr6->sin6_family = (sa_family_t)AF_INET6;
	inet_pton(AF_INET6, SSDP_IPV6_SITELOCAL, &destAddr6->sin6_addr);
	destAddr6->sin6_port = htons(SSDP_PORT);
	destAddr6->sin6_scope_id = gIF_INDEX;
		#endif

	/* add search criteria to list */
	HandleLock(__FILE__, __LINE__);
	if (GetHandleInfo(Hnd, &ctrlpt_info) != HND_CLIENT) {
		HandleUnlock(__FILE__, __LINE__);
		return UPNP_E_INTERNAL_ERROR;
	}
	newArg = (SsdpSearchArg *)malloc(sizeof(SsdpSearchArg));
	newArg->searchTarget = strdup(St);
	newArg->cookie = Cookie;
	newArg->requestType = requestType;

	expArg = (SsdpSearchExpArg *)malloc(sizeof(SsdpSearchExpArg));
	expArg->handle = Hnd;
	id = (int *)&(expArg->timeoutEventId);
	TPJobInit(&job, (start_routine)searchExpired, expArg);
	TPJobSetPriority(&job, MED_PRIORITY);
	TPJobSetFreeFunction(&job, (free_routine)free);
	/* Schedule a timeout event to remove search Arg */
	TimerThreadSchedule(
		&gTimerThread, timeTillRead, REL_SEC, &job, SHORT_TERM, id);
	newArg->timeoutEventId = *id;
	ListAddTail(&ctrlpt_info->SsdpSearchList, newArg);
	HandleUnlock(__FILE__, __LINE__);
		/* End of lock */

		#ifdef _WIN32
	FD_ZERO(&wrSet);
	if (gSsdpReqSocket4 != INVALID_SOCKET) {
		setsockopt(gSsdpReqSocket4,
			IPPROTO_IP,
			IP_MULTICAST_IF,
			(char *)&addrv4,
			sizeof(addrv4));
		FD_SET(gSsdpReqSocket4, &wrSet);
		max_fd = max(max_fd, gSsdpReqSocket4);
	}
			#ifdef UPNP_ENABLE_IPV6
	if (gSsdpReqSocket6 != INVALID_SOCKET) {
		setsockopt(gSsdpReqSocket6,
			IPPROTO_IPV6,
			IPV6_MULTICAST_IF,
			(char *)&gIF_INDEX,
			sizeof(gIF_INDEX));
		FD_SET(gSsdpReqSocket6, &wrSet);
		max_fd = max(max_fd, gSsdpReqSocket6);
	}
			#endif
	ret = select((int)max_fd + 1, NULL, &wrSet, NULL, NULL);
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_INFO,
			SSDP,
			__FILE__,
			__LINE__,
			"SSDP_LIB: Error in select(): %s\n",
			errorBuffer);
		UpnpCloseSocket(gSsdpReqSocket4);
			#ifdef UPNP_ENABLE_IPV6
		UpnpCloseSocket(gSsdpReqSocket6);
			#endif
		return UPNP_E_INTERNAL_ERROR;
	}
			#ifdef UPNP_ENABLE_IPV6
	if (gSsdpReqSocket6 != INVALID_SOCKET &&
		FD_ISSET(gSsdpReqSocket6, &wrSet)) {
		int NumCopy = 0;
		while (NumCopy < NUM_SSDP_COPY) {
			UpnpPrintf(UPNP_INFO,
				SSDP,
				__FILE__,
				__LINE__,
				">>> SSDP SEND M-SEARCH >>>\n%s\n",
				ReqBufv6UlaGua);
			sendto(gSsdpReqSocket6,
				ReqBufv6UlaGua,
				(int)strlen(ReqBufv6UlaGua),
				0,
				(struct sockaddr *)&__ss_v6,
				sizeof(struct sockaddr_in6));
			imillisleep(SSDP_PAUSE);
			NumCopy++;
		}
		NumCopy = 0;
		inet_pton(AF_INET6, SSDP_IPV6_LINKLOCAL, &destAddr6->sin6_addr);
		while (NumCopy < NUM_SSDP_COPY) {
			UpnpPrintf(UPNP_INFO,
				SSDP,
				__FILE__,
				__LINE__,
				">>> SSDP SEND M-SEARCH >>>\n%s\n",
				ReqBufv6);
			sendto(gSsdpReqSocket6,
				ReqBufv6,
				(int)strlen(ReqBufv6),
				0,
				(struct sockaddr *)&__ss_v6,
				sizeof(struct sockaddr_in6));
			imillisleep(SSDP_PAUSE);
			NumCopy++;
		}
	}
			#endif /* IPv6 */
	if (gSsdpReqSocket4 != INVALID_SOCKET &&
		FD_ISSET(gSsdpReqSocket4, &wrSet)) {
		int NumCopy = 0;
		while (NumCopy < NUM_SSDP_COPY) {
			UpnpPrintf(UPNP_INFO,
				SSDP,
				__FILE__,
				__LINE__,
				">>> SSDP SEND M-SEARCH >>>\n%s\n",
				ReqBufv4);
			sendto(gSsdpReqSocket4,
				ReqBufv4,
				(int)strlen(ReqBufv4),
				0,
				(struct sockaddr *)&__ss_v4,
				sizeof(struct sockaddr_in));
			imillisleep(SSDP_PAUSE);
			NumCopy++;
		}
	}
		#else /* _WIN32 */
	{
		struct pollfd fds[2];
		nfds_t nfds = 0;

		if (gSsdpReqSocket4 != INVALID_SOCKET) {
			setsockopt(gSsdpReqSocket4,
				IPPROTO_IP,
				IP_MULTICAST_IF,
				(char *)&addrv4,
				sizeof(addrv4));
			fds[nfds].fd = gSsdpReqSocket4;
			fds[nfds].events = POLLOUT;
			nfds++;
		}
			#ifdef UPNP_ENABLE_IPV6
		if (gSsdpReqSocket6 != INVALID_SOCKET) {
			setsockopt(gSsdpReqSocket6,
				IPPROTO_IPV6,
				IPV6_MULTICAST_IF,
				(char *)&gIF_INDEX,
				sizeof(gIF_INDEX));
			fds[nfds].fd = gSsdpReqSocket6;
			fds[nfds].events = POLLOUT;
			nfds++;
		}
			#endif
		ret = _poll(fds, nfds, -1);
		if (ret == -1) {
			strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
			UpnpPrintf(UPNP_INFO,
				SSDP,
				__FILE__,
				__LINE__,
				"SSDP_LIB: Error in _poll(): %s\n",
				errorBuffer);
			UpnpCloseSocket(gSsdpReqSocket4);
			#ifdef UPNP_ENABLE_IPV6
			UpnpCloseSocket(gSsdpReqSocket6);
			#endif
			return UPNP_E_INTERNAL_ERROR;
		}
			#ifdef UPNP_ENABLE_IPV6
		if (gSsdpReqSocket6 != INVALID_SOCKET &&
			(fds[nfds - 1].revents & POLLOUT)) {
			for (numCopies = 0; numCopies < NUM_SSDP_COPY;
				numCopies++) {
				UpnpPrintf(UPNP_INFO,
					SSDP,
					__FILE__,
					__LINE__,
					">>> SSDP SEND M-SEARCH >>>\n%s\n",
					ReqBufv6UlaGua);
				sendto(gSsdpReqSocket6,
					ReqBufv6UlaGua,
					strlen(ReqBufv6UlaGua),
					0,
					(struct sockaddr *)&__ss_v6,
					sizeof(struct sockaddr_in6));
				imillisleep(SSDP_PAUSE);
			}
			inet_pton(AF_INET6,
				SSDP_IPV6_LINKLOCAL,
				&destAddr6->sin6_addr);
			for (numCopies = 0; numCopies < NUM_SSDP_COPY;
				numCopies++) {
				UpnpPrintf(UPNP_INFO,
					SSDP,
					__FILE__,
					__LINE__,
					">>> SSDP SEND M-SEARCH >>>\n%s\n",
					ReqBufv6);
				sendto(gSsdpReqSocket6,
					ReqBufv6,
					strlen(ReqBufv6),
					0,
					(struct sockaddr *)&__ss_v6,
					sizeof(struct sockaddr_in6));
				imillisleep(SSDP_PAUSE);
			}
		}
			#endif /* IPv6 */
		if (gSsdpReqSocket4 != INVALID_SOCKET &&
			(fds[0].revents & POLLOUT)) {
			for (numCopies = 0; numCopies < NUM_SSDP_COPY;
				numCopies++) {
				UpnpPrintf(UPNP_INFO,
					SSDP,
					__FILE__,
					__LINE__,
					">>> SSDP SEND M-SEARCH >>>\n%s\n",
					ReqBufv4);
				sendto(gSsdpReqSocket4,
					ReqBufv4,
					strlen(ReqBufv4),
					0,
					(struct sockaddr *)&__ss_v4,
					sizeof(struct sockaddr_in));
				imillisleep(SSDP_PAUSE);
			}
		}
	}
		#endif	       /* _WIN32 */
	return 1;
}
	#endif /* EXCLUDE_SSDP */
#endif	       /* INCLUDE_CLIENT_APIS */

/* @} SSDPlib */
