/**************************************************************************
 *
 * Copyright (c) 2000-2003 Intel Corporation
 * All rights reserved.
 * Copyright (C) 2011-2012 France Telecom 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 "config.h"

#if EXCLUDE_SSDP == 0

	#include "ssdplib.h"

	#include "ThreadPool.h"
	#include "httpparser.h"
	#include "httpreadwrite.h"
	#include "membuffer.h"
	#include "miniserver.h"
	#include "sock.h"
	#include "upnpapi.h"

	#include <stdio.h>

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

	#define MAX_TIME_TOREAD 45

	#ifdef INCLUDE_CLIENT_APIS
SOCKET gSsdpReqSocket4 = INVALID_SOCKET;
		#ifdef UPNP_ENABLE_IPV6
SOCKET gSsdpReqSocket6 = INVALID_SOCKET;
		#endif /* UPNP_ENABLE_IPV6 */
	#endif	       /* INCLUDE_CLIENT_APIS */

void RequestHandler();

enum Listener
{
	Idle,
	Stopping,
	Running
};

struct SSDPSockArray
{
	/*! socket for incoming advertisments and search requests */
	SOCKET ssdpSock;
	#ifdef INCLUDE_CLIENT_APIS
	/*! socket for sending search requests and receiving search replies */
	int ssdpReqSock;
	#endif /* INCLUDE_CLIENT_APIS */
};

	#ifdef INCLUDE_DEVICE_APIS
static const char SERVICELIST_STR[] = "serviceList";

int AdvertiseAndReply(int AdFlag,
	UpnpDevice_Handle Hnd,
	enum SsdpSearchType SearchType,
	struct sockaddr *DestAddr,
	char *DeviceType,
	char *DeviceUDN,
	char *ServiceType,
	int Exp)
{
	int retVal = UPNP_E_SUCCESS;
	long unsigned int i;
	long unsigned int j;
	int defaultExp = DEFAULT_MAXAGE;
	struct Handle_Info *SInfo = NULL;
	char UDNstr[100];
	char devType[100];
	char servType[100];
	IXML_NodeList *nodeList = NULL;
	IXML_NodeList *tmpNodeList = NULL;
	IXML_Node *tmpNode = NULL;
	IXML_Node *tmpNode2 = NULL;
	IXML_Node *textNode = NULL;
	const DOMString tmpStr;
	const DOMString dbgStr;
	int NumCopy = 0;

	memset(UDNstr, 0, sizeof(UDNstr));
	memset(devType, 0, sizeof(devType));
	memset(servType, 0, sizeof(servType));

	UpnpPrintf(UPNP_ALL,
		API,
		__FILE__,
		__LINE__,
		"Inside AdvertiseAndReply with AdFlag = %d\n",
		AdFlag);

	/* Use a read lock */
	HandleReadLock(__FILE__, __LINE__);
	if (GetHandleInfo(Hnd, &SInfo) != HND_DEVICE) {
		retVal = UPNP_E_INVALID_HANDLE;
		goto end_function;
	}
	defaultExp = SInfo->MaxAge;
	/* parse the device list and send advertisements/replies */
	while (NumCopy == 0 || (AdFlag && NumCopy < NUM_SSDP_COPY)) {
		if (NumCopy != 0)
			imillisleep(SSDP_PAUSE);
		NumCopy++;
		for (i = 0lu;; i++) {
			UpnpPrintf(UPNP_ALL,
				API,
				__FILE__,
				__LINE__,
				"Entering new device list with i = %lu\n\n",
				i);
			tmpNode = ixmlNodeList_item(SInfo->DeviceList, i);
			if (!tmpNode) {
				UpnpPrintf(UPNP_ALL,
					API,
					__FILE__,
					__LINE__,
					"Exiting new device list with i = "
					"%lu\n\n",
					i);
				break;
			}
			dbgStr = ixmlNode_getNodeName(tmpNode);
			UpnpPrintf(UPNP_INFO,
				API,
				__FILE__,
				__LINE__,
				"Extracting device type once for %s\n",
				dbgStr);
			ixmlNodeList_free(nodeList);
			nodeList = ixmlElement_getElementsByTagName(
				(IXML_Element *)tmpNode, "deviceType");
			if (!nodeList)
				continue;
			UpnpPrintf(UPNP_ALL,
				API,
				__FILE__,
				__LINE__,
				"Extracting UDN for %s\n",
				dbgStr);
			UpnpPrintf(UPNP_ALL,
				API,
				__FILE__,
				__LINE__,
				"Extracting device type\n");
			tmpNode2 = ixmlNodeList_item(nodeList, 0lu);
			if (!tmpNode2)
				continue;
			textNode = ixmlNode_getFirstChild(tmpNode2);
			if (!textNode)
				continue;
			UpnpPrintf(UPNP_ALL,
				API,
				__FILE__,
				__LINE__,
				"Extracting device type \n");
			tmpStr = ixmlNode_getNodeValue(textNode);
			if (!tmpStr)
				continue;
			strncpy(devType, tmpStr, sizeof(devType) - 1);
			UpnpPrintf(UPNP_ALL,
				API,
				__FILE__,
				__LINE__,
				"Extracting device type = %s\n",
				devType);
			if (!tmpNode) {
				UpnpPrintf(UPNP_ALL,
					API,
					__FILE__,
					__LINE__,
					"TempNode is NULL\n");
			}
			dbgStr = ixmlNode_getNodeName(tmpNode);
			UpnpPrintf(UPNP_ALL,
				API,
				__FILE__,
				__LINE__,
				"Extracting UDN for %s\n",
				dbgStr);
			ixmlNodeList_free(nodeList);
			nodeList = ixmlElement_getElementsByTagName(
				(IXML_Element *)tmpNode, "UDN");
			if (!nodeList) {
				UpnpPrintf(UPNP_CRITICAL,
					API,
					__FILE__,
					__LINE__,
					"UDN not found!\n");
				continue;
			}
			tmpNode2 = ixmlNodeList_item(nodeList, 0lu);
			if (!tmpNode2) {
				UpnpPrintf(UPNP_CRITICAL,
					API,
					__FILE__,
					__LINE__,
					"UDN not found!\n");
				continue;
			}
			textNode = ixmlNode_getFirstChild(tmpNode2);
			if (!textNode) {
				UpnpPrintf(UPNP_CRITICAL,
					API,
					__FILE__,
					__LINE__,
					"UDN not found!\n");
				continue;
			}
			tmpStr = ixmlNode_getNodeValue(textNode);
			if (!tmpStr) {
				UpnpPrintf(UPNP_CRITICAL,
					API,
					__FILE__,
					__LINE__,
					"UDN not found!\n");
				continue;
			}
			strncpy(UDNstr, tmpStr, sizeof(UDNstr) - 1);
			UpnpPrintf(UPNP_INFO,
				API,
				__FILE__,
				__LINE__,
				"Sending UDNStr = %s \n",
				UDNstr);
			if (AdFlag) {
				/* send the device advertisement */
				if (AdFlag == 1) {
					DeviceAdvertisement(devType,
						i == 0lu,
						UDNstr,
						SInfo->DescURL,
						Exp,
						SInfo->DeviceAf,
						SInfo->PowerState,
						SInfo->SleepPeriod,
						SInfo->RegistrationState);
				} else {
					/* AdFlag == -1 */
					DeviceShutdown(devType,
						i == 0lu,
						UDNstr,
						SInfo->DescURL,
						Exp,
						SInfo->DeviceAf,
						SInfo->PowerState,
						SInfo->SleepPeriod,
						SInfo->RegistrationState);
				}
			} else {
				switch (SearchType) {
				case SSDP_ALL:
					DeviceReply(DestAddr,
						devType,
						i == 0lu,
						UDNstr,
						SInfo->DescURL,
						defaultExp,
						SInfo->PowerState,
						SInfo->SleepPeriod,
						SInfo->RegistrationState);
					break;
				case SSDP_ROOTDEVICE:
					if (i == 0lu) {
						SendReply(DestAddr,
							devType,
							1,
							UDNstr,
							SInfo->DescURL,
							defaultExp,
							0,
							SInfo->PowerState,
							SInfo->SleepPeriod,
							SInfo->RegistrationState);
					}
					break;
				case SSDP_DEVICEUDN: {
					/* clang-format off */
					if (DeviceUDN && strlen(DeviceUDN) != (size_t)0) {
						if (strcasecmp(DeviceUDN, UDNstr)) {
							UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
								"DeviceUDN=%s and search UDN=%s DID NOT match\n",
								UDNstr, DeviceUDN);
						} else {
							UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
								"DeviceUDN=%s and search UDN=%s MATCH\n",
								UDNstr, DeviceUDN);
							SendReply(DestAddr, devType, 0, UDNstr, SInfo->DescURL, defaultExp, 0,
								SInfo->PowerState,
								SInfo->SleepPeriod,
								SInfo->RegistrationState);
						}
					}
					/* clang-format on */
					break;
				}
				case SSDP_DEVICETYPE: {
					/* clang-format off */
					if (!strncasecmp(DeviceType, devType, strlen(DeviceType) - (size_t)2)) {
						if (atoi(strrchr(DeviceType, ':') + 1)
						    < atoi(&devType[strlen(devType) - (size_t)1])) {
							/* the requested version is lower than the device version
							 * must reply with the lower version number and the lower
							 * description URL */
							UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
								   "DeviceType=%s and search devType=%s MATCH\n",
								   devType, DeviceType);
							SendReply(DestAddr, DeviceType, 0, UDNstr, SInfo->LowerDescURL,
								  defaultExp, 1,
								  SInfo->PowerState,
								  SInfo->SleepPeriod,
								  SInfo->RegistrationState);
						} else if (atoi(strrchr(DeviceType, ':') + 1)
							   == atoi(&devType[strlen(devType) - (size_t)1])) {
							UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
								   "DeviceType=%s and search devType=%s MATCH\n",
								   devType, DeviceType);
							SendReply(DestAddr, DeviceType, 0, UDNstr, SInfo->DescURL,
								  defaultExp, 1,
								  SInfo->PowerState,
								  SInfo->SleepPeriod,
								  SInfo->RegistrationState);
						} else {
							UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
								   "DeviceType=%s and search devType=%s DID NOT MATCH\n",
								   devType, DeviceType);
						}
					} else {
						UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
							   "DeviceType=%s and search devType=%s DID NOT MATCH\n",
							   devType, DeviceType);
					}
					/* clang-format on */
					break;
				}
				default:
					break;
				}
			}
			/* send service advertisements for services
			 * corresponding to the same device */
			UpnpPrintf(UPNP_INFO,
				API,
				__FILE__,
				__LINE__,
				"Sending service Advertisement\n");
			/* Correct service traversal such that each device's
			 * serviceList is directly traversed as a child of its
			 * parent device. This ensures that the service's alive
			 * message uses the UDN of the parent device. */
			tmpNode = ixmlNode_getFirstChild(tmpNode);
			while (tmpNode) {
				dbgStr = ixmlNode_getNodeName(tmpNode);
				if (!strncmp(dbgStr,
					    SERVICELIST_STR,
					    sizeof SERVICELIST_STR)) {
					break;
				}
				tmpNode = ixmlNode_getNextSibling(tmpNode);
			}
			ixmlNodeList_free(nodeList);
			if (!tmpNode) {
				nodeList = NULL;
				continue;
			}
			nodeList = ixmlElement_getElementsByTagName(
				(IXML_Element *)tmpNode, "service");
			if (!nodeList) {
				UpnpPrintf(UPNP_INFO,
					API,
					__FILE__,
					__LINE__,
					"Service not found 3\n");
				continue;
			}
			for (j = 0lu;; j++) {
				tmpNode = ixmlNodeList_item(nodeList, j);
				if (!tmpNode) {
					break;
				}
				ixmlNodeList_free(tmpNodeList);
				tmpNodeList = ixmlElement_getElementsByTagName(
					(IXML_Element *)tmpNode, "serviceType");
				if (!tmpNodeList) {
					UpnpPrintf(UPNP_CRITICAL,
						API,
						__FILE__,
						__LINE__,
						"ServiceType not found \n");
					continue;
				}
				tmpNode2 = ixmlNodeList_item(tmpNodeList, 0lu);
				if (!tmpNode2)
					continue;
				textNode = ixmlNode_getFirstChild(tmpNode2);
				if (!textNode)
					continue;
				/* servType is of format
				 * Servicetype:ServiceVersion */
				tmpStr = ixmlNode_getNodeValue(textNode);
				if (!tmpStr)
					continue;
				strncpy(servType, tmpStr, sizeof(servType) - 1);
				UpnpPrintf(UPNP_INFO,
					API,
					__FILE__,
					__LINE__,
					"ServiceType = %s\n",
					servType);
				if (AdFlag) {
					if (AdFlag == 1) {
						ServiceAdvertisement(UDNstr,
							servType,
							SInfo->DescURL,
							Exp,
							SInfo->DeviceAf,
							SInfo->PowerState,
							SInfo->SleepPeriod,
							SInfo->RegistrationState);
					} else {
						/* AdFlag == -1 */
						ServiceShutdown(UDNstr,
							servType,
							SInfo->DescURL,
							Exp,
							SInfo->DeviceAf,
							SInfo->PowerState,
							SInfo->SleepPeriod,
							SInfo->RegistrationState);
					}
				} else {
					switch (SearchType) {
					case SSDP_ALL:
						ServiceReply(DestAddr,
							servType,
							UDNstr,
							SInfo->DescURL,
							defaultExp,
							SInfo->PowerState,
							SInfo->SleepPeriod,
							SInfo->RegistrationState);
						break;
					case SSDP_SERVICE:
						/* clang-format off */
						if (ServiceType) {
							if (!strncasecmp(ServiceType, servType, strlen(ServiceType) - (size_t)2)) {
								if (atoi(strrchr(ServiceType, ':') + 1) <
								    atoi(&servType[strlen(servType) - (size_t)1])) {
									/* the requested version is lower than the service version
									 * must reply with the lower version number and the lower
									 * description URL */
									UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
										   "ServiceType=%s and search servType=%s MATCH\n",
										   ServiceType, servType);
									SendReply(DestAddr, ServiceType, 0, UDNstr, SInfo->LowerDescURL,
										  defaultExp, 1,
										  SInfo->PowerState,
										  SInfo->SleepPeriod,
										  SInfo->RegistrationState);
								} else if (atoi(strrchr (ServiceType, ':') + 1) ==
									   atoi(&servType[strlen(servType) - (size_t)1])) {
									UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
										   "ServiceType=%s and search servType=%s MATCH\n",
										   ServiceType, servType);
									SendReply(DestAddr, ServiceType, 0, UDNstr, SInfo->DescURL,
										  defaultExp, 1,
										  SInfo->PowerState,
										  SInfo->SleepPeriod,
										  SInfo->RegistrationState);
								} else {
									UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
									   "ServiceType=%s and search servType=%s DID NOT MATCH\n",
									   ServiceType, servType);
								}
							} else {
								UpnpPrintf(UPNP_INFO, API, __FILE__, __LINE__,
									   "ServiceType=%s and search servType=%s DID NOT MATCH\n",
									   ServiceType, servType);
							}
						}
						/* clang-format on */
						break;
					default:
						break;
					}
				}
			}
			ixmlNodeList_free(tmpNodeList);
			tmpNodeList = NULL;
			ixmlNodeList_free(nodeList);
			nodeList = NULL;
		}
	}

end_function:
	ixmlNodeList_free(tmpNodeList);
	ixmlNodeList_free(nodeList);
	UpnpPrintf(UPNP_ALL,
		API,
		__FILE__,
		__LINE__,
		"Exiting AdvertiseAndReply.\n");
	HandleUnlock(__FILE__, __LINE__);

	return retVal;
}
	#endif /* INCLUDE_DEVICE_APIS */

int unique_service_name(char *cmd, SsdpEvent *Evt)
{
	char TempBuf[LINE_SIZE - 3];
	char *TempPtr = NULL;
	char *Ptr = NULL;
	char *ptr1 = NULL;
	char *ptr2 = NULL;
	char *ptr3 = NULL;
	int CommandFound = 0;
	size_t n = (size_t)0;

	if (strstr(cmd, "uuid:schemas") != NULL) {
		ptr1 = strstr(cmd, ":device");
		if (ptr1 != NULL)
			ptr2 = strstr(ptr1 + 1, ":");
		else
			return -1;
		if (ptr2 != NULL)
			ptr3 = strstr(ptr2 + 1, ":");
		else
			return -1;
		if (ptr3 != NULL) {
			if (strlen("uuid:") + strlen(ptr3 + 1) >=
				sizeof Evt->UDN)
				return -1;
			snprintf(
				Evt->UDN, sizeof Evt->UDN, "uuid:%s", ptr3 + 1);
		} else
			return -1;
		ptr1 = strstr(cmd, ":");
		if (ptr1 != NULL) {
			n = (size_t)ptr3 - (size_t)ptr1;
			n = n >= sizeof TempBuf ? sizeof TempBuf - 1 : n;
			strncpy(TempBuf, ptr1, n);
			TempBuf[n] = '\0';
			if (strlen("urn") + strlen(TempBuf) >=
				sizeof(Evt->DeviceType))
				return -1;
			snprintf(Evt->DeviceType,
				sizeof(Evt->DeviceType),
				"urn%s",
				TempBuf);
		} else
			return -1;
		return 0;
	}
	if ((TempPtr = strstr(cmd, "uuid")) != NULL) {
		if ((Ptr = strstr(cmd, "::")) != NULL) {
			n = (size_t)Ptr - (size_t)TempPtr;
			n = n >= sizeof Evt->UDN ? sizeof Evt->UDN - 1 : n;
			strncpy(Evt->UDN, TempPtr, n);
			Evt->UDN[n] = '\0';
		} else {
			memset(Evt->UDN, 0, sizeof(Evt->UDN));
			strncpy(Evt->UDN, TempPtr, sizeof Evt->UDN - 1);
		}
		CommandFound = 1;
	}
	if (strstr(cmd, "urn:") != NULL && strstr(cmd, ":service:") != NULL) {
		if ((TempPtr = strstr(cmd, "urn")) != NULL) {
			memset(Evt->ServiceType, 0, sizeof Evt->ServiceType);
			strncpy(Evt->ServiceType,
				TempPtr,
				sizeof Evt->ServiceType - 1);
			CommandFound = 1;
		}
	}
	if (strstr(cmd, "urn:") != NULL && strstr(cmd, ":device:") != NULL) {
		if ((TempPtr = strstr(cmd, "urn")) != NULL) {
			memset(Evt->DeviceType, 0, sizeof Evt->DeviceType);
			strncpy(Evt->DeviceType,
				TempPtr,
				sizeof Evt->DeviceType - 1);
			CommandFound = 1;
		}
	}
	if ((TempPtr = strstr(cmd, "::upnp:rootdevice")) != NULL) {
		/* Everything before "::upnp::rootdevice" is the UDN. */
		if (TempPtr != cmd) {
			n = (size_t)TempPtr - (size_t)cmd;
			n = n >= sizeof Evt->UDN ? sizeof Evt->UDN - 1 : n;
			strncpy(Evt->UDN, cmd, n);
			Evt->UDN[n] = 0;
			CommandFound = 1;
		}
	}
	if (CommandFound == 0)
		return -1;

	return 0;
}

enum SsdpSearchType ssdp_request_type1(char *cmd)
{
	if (strstr(cmd, ":all"))
		return SSDP_ALL;
	if (strstr(cmd, ":rootdevice"))
		return SSDP_ROOTDEVICE;
	if (strstr(cmd, "uuid:"))
		return SSDP_DEVICEUDN;
	if (strstr(cmd, "urn:") && strstr(cmd, ":device:"))
		return SSDP_DEVICETYPE;
	if (strstr(cmd, "urn:") && strstr(cmd, ":service:"))
		return SSDP_SERVICE;
	return SSDP_SERROR;
}

int ssdp_request_type(char *cmd, SsdpEvent *Evt)
{
	/* clear event */
	memset(Evt, 0, sizeof(SsdpEvent));
	unique_service_name(cmd, Evt);
	Evt->ErrCode = NO_ERROR_FOUND;
	if ((Evt->RequestType = ssdp_request_type1(cmd)) == SSDP_SERROR) {
		Evt->ErrCode = E_HTTP_SYNTEX;
		return -1;
	}
	return 0;
}

/*!
 * \brief Frees the ssdp request.
 */
static void free_ssdp_event_handler_data(
	/*! [in] ssdp_thread_data structure. This structure contains SSDP
	 * request message. */
	void *the_data)
{
	ssdp_thread_data *data = (ssdp_thread_data *)the_data;

	if (data != NULL) {
		http_message_t *hmsg = &data->parser.msg;
		/* free data */
		httpmsg_destroy(hmsg);
		free(data);
	}
}

/*!
 * \brief Does some quick checking of the ssdp msg.
 *
 * \return 1 if msg is valid, else 0.
 */
static UPNP_INLINE int valid_ssdp_msg(
	/*! [in] ssdp_thread_data structure. This structure contains SSDP
	 * request message. */
	http_message_t *hmsg)
{
	memptr hdr_value;

	/* check for valid methods - NOTIFY or M-SEARCH */
	if (hmsg->method != (http_method_t)HTTPMETHOD_NOTIFY &&
		hmsg->method != (http_method_t)HTTPMETHOD_MSEARCH &&
		hmsg->request_method != (http_method_t)HTTPMETHOD_MSEARCH) {
		return 0;
	}
	if (hmsg->request_method != (http_method_t)HTTPMETHOD_MSEARCH) {
		/* check PATH == "*" */
		if (hmsg->uri.type != (enum uriType)RELATIVE ||
			strncmp("*",
				hmsg->uri.pathquery.buff,
				hmsg->uri.pathquery.size) != 0) {
			return 0;
		}
		/* check HOST header */
		if (httpmsg_find_hdr(hmsg, HDR_HOST, &hdr_value) == NULL ||
			(memptr_cmp(&hdr_value, "239.255.255.250:1900") != 0 &&
				memptr_cmp(&hdr_value, "[FF02::C]:1900") != 0 &&
				memptr_cmp(&hdr_value, "[ff02::c]:1900") != 0 &&
				memptr_cmp(&hdr_value, "[FF05::C]:1900") != 0 &&
				memptr_cmp(&hdr_value, "[ff05::c]:1900") !=
					0)) {
			UpnpPrintf(UPNP_INFO,
				SSDP,
				__FILE__,
				__LINE__,
				"Invalid HOST header from SSDP message\n");

			return 0;
		}
	}

	/* passed quick check */
	return 1;
}

/*!
 * \brief Parses the message and dispatches it to a handler which handles the
 * ssdp request msg.
 *
 * \return 0 if successful, -1 if error.
 */
static UPNP_INLINE int start_event_handler(
	/*! [in] ssdp_thread_data structure. This structure contains SSDP
	 * request message. */
	void *Data)
{
	http_parser_t *parser = NULL;
	parse_status_t status;
	ssdp_thread_data *data = (ssdp_thread_data *)Data;

	parser = &data->parser;
	status = parser_parse(parser);
	if (status == (parse_status_t)PARSE_FAILURE) {
		if (parser->msg.method != (http_method_t)HTTPMETHOD_NOTIFY ||
			!parser->valid_ssdp_notify_hack) {
			UpnpPrintf(UPNP_INFO,
				SSDP,
				__FILE__,
				__LINE__,
				"SSDP recvd bad msg code = %d\n",
				status);
			/* ignore bad msg, or not enuf mem */
			goto error_handler;
		}
		/* valid notify msg */
	} else if (status != (parse_status_t)PARSE_SUCCESS) {
		UpnpPrintf(UPNP_INFO,
			SSDP,
			__FILE__,
			__LINE__,
			"SSDP recvd bad msg code = %d\n",
			status);

		goto error_handler;
	}
	/* check msg */
	if (valid_ssdp_msg(&parser->msg) != 1) {
		goto error_handler;
	}
	/* done; thread will free 'data' */
	return 0;

error_handler:
	free_ssdp_event_handler_data(data);
	return -1;
}

/*!
 * \brief This function is a thread that handles SSDP requests.
 */
static void ssdp_event_handler_thread(
	/*! [] ssdp_thread_data structure. This structure contains SSDP
	 * request message. */
	void *the_data)
{
	ssdp_thread_data *data = (ssdp_thread_data *)the_data;
	http_message_t *hmsg = &data->parser.msg;

	if (start_event_handler(the_data) != 0)
		return;
	/* send msg to device or ctrlpt */
	if (hmsg->method == (http_method_t)HTTPMETHOD_NOTIFY ||
		hmsg->request_method == (http_method_t)HTTPMETHOD_MSEARCH) {
	#ifdef INCLUDE_CLIENT_APIS
		ssdp_handle_ctrlpt_msg(hmsg, &data->dest_addr, 0);
	#endif /* INCLUDE_CLIENT_APIS */
	} else {
		ssdp_handle_device_request(hmsg, &data->dest_addr);
	}

	/* free data */
	free_ssdp_event_handler_data(data);
}

int readFromSSDPSocket(SOCKET socket)
{
	char *requestBuf = NULL;
	char staticBuf[BUFSIZE];
	struct sockaddr_storage __ss;
	ThreadPoolJob job;
	ssdp_thread_data *data = NULL;
	socklen_t socklen = sizeof(__ss);
	ssize_t byteReceived = 0;
	char ntop_buf[INET6_ADDRSTRLEN];

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

	requestBuf = staticBuf;
	/* in case memory can't be allocated, still drain the socket using a
	 * static buffer. */
	data = malloc(sizeof(ssdp_thread_data));
	if (data) {
		/* initialize parser */
	#ifdef INCLUDE_CLIENT_APIS
		if (socket == gSsdpReqSocket4
		#ifdef UPNP_ENABLE_IPV6
			|| socket == gSsdpReqSocket6
		#endif /* UPNP_ENABLE_IPV6 */
		)
			parser_response_init(&data->parser, HTTPMETHOD_MSEARCH);
		else
			parser_request_init(&data->parser);
	#else  /* INCLUDE_CLIENT_APIS */
		parser_request_init(&data->parser);
	#endif /* INCLUDE_CLIENT_APIS */
		/* set size of parser buffer */
		if (membuffer_set_size(&data->parser.msg.msg, BUFSIZE) == 0)
			/* use this as the buffer for recv */
			requestBuf = data->parser.msg.msg.buf;
		else {
			free(data);
			data = NULL;
		}
	}
	byteReceived = recvfrom(socket,
		requestBuf,
		BUFSIZE - (size_t)1,
		0,
		(struct sockaddr *)&__ss,
		&socklen);
	if (byteReceived > 0) {
		requestBuf[byteReceived] = '\0';
		switch (__ss.ss_family) {
		case AF_INET:
			inet_ntop(AF_INET,
				&((struct sockaddr_in *)&__ss)->sin_addr,
				ntop_buf,
				sizeof(ntop_buf));
			break;
	#ifdef UPNP_ENABLE_IPV6
		case AF_INET6:
			inet_ntop(AF_INET6,
				&((struct sockaddr_in6 *)&__ss)->sin6_addr,
				ntop_buf,
				sizeof(ntop_buf));
			break;
	#endif /* UPNP_ENABLE_IPV6 */
		default:
			memset(ntop_buf, 0, sizeof(ntop_buf));
			strncpy(ntop_buf,
				"<Invalid address family>",
				sizeof(ntop_buf) - 1);
		}
		/* clang-format off */
		UpnpPrintf(UPNP_INFO, SSDP, __FILE__, __LINE__,
			   "Start of received response ----------------------------------------------------\n"
			   "%s\n"
			   "End of received response ------------------------------------------------------\n"
			   "From host %s\n", requestBuf, ntop_buf);
		/* clang-format on */
		/* add thread pool job to handle request */
		if (data != NULL) {
			data->parser.msg.msg.length += (size_t)byteReceived;
			/* null-terminate */
			data->parser.msg.msg.buf[byteReceived] = 0;
			memcpy(&data->dest_addr, &__ss, sizeof(__ss));
			TPJobInit(&job,
				(start_routine)ssdp_event_handler_thread,
				data);
			TPJobSetFreeFunction(
				&job, free_ssdp_event_handler_data);
			TPJobSetPriority(&job, MED_PRIORITY);
			if (ThreadPoolAdd(&gRecvThreadPool, &job, NULL) != 0)
				free_ssdp_event_handler_data(data);
		}
		return 0;
	} else {
		free_ssdp_event_handler_data(data);
		return -1;
	}
}

/*!
 * \brief
 */
static int create_ssdp_sock_v4(
	/*! [] SSDP IPv4 socket to be created. */
	SOCKET *ssdpSock)
{
	char errorBuffer[ERROR_BUFFER_LEN];
	int onOff;
	u_char ttl = (u_char)4;
	struct ip_mreq ssdpMcastAddr;
	struct sockaddr_storage __ss;
	struct sockaddr_in *ssdpAddr4 = (struct sockaddr_in *)&__ss;
	int ret = 0;
	struct in_addr addr;

	*ssdpSock = socket(AF_INET, SOCK_DGRAM, 0);
	if (*ssdpSock == INVALID_SOCKET) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in socket(): %s\n",
			errorBuffer);

		return UPNP_E_OUTOF_SOCKET;
	}
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_REUSEADDR,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_REUSEADDR: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
	#if (defined(BSD) && !defined(__GNU__)) || defined(__APPLE__)
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_REUSEPORT,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_REUSEPORT: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
	#endif /* BSD, __APPLE__ */
	memset(&__ss, 0, sizeof(__ss));
	ssdpAddr4->sin_family = (sa_family_t)AF_INET;
	ssdpAddr4->sin_addr.s_addr = htonl(INADDR_ANY);
	ssdpAddr4->sin_port = htons(SSDP_PORT);
	ret = bind(*ssdpSock, (struct sockaddr *)ssdpAddr4, sizeof(*ssdpAddr4));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in bind(), addr=0x%08X, port=%d: %s\n",
			INADDR_ANY,
			SSDP_PORT,
			errorBuffer);
		ret = UPNP_E_SOCKET_BIND;
		goto error_handler;
	}
	/*
	 * See: https://man7.org/linux/man-pages/man7/ip.7.html
	 * Socket options, IP_ADD_MEMBERSHIP
	 *
	 * This memset actually sets imr_address to INADDR_ANY and
	 * imr_ifindex to zero, which make the system choose the appropriate
	 * interface.
	 *
	 * Still using "struct ip_mreq" instead of "struct ip_mreqn" because
	 * windows does not recognize the latter.
	 */
	memset((void *)&ssdpMcastAddr, 0, sizeof ssdpMcastAddr);
	inet_pton(AF_INET, gIF_IPV4, &ssdpMcastAddr.imr_interface);
	inet_pton(AF_INET, SSDP_IP, &ssdpMcastAddr.imr_multiaddr);
	ret = setsockopt(*ssdpSock,
		IPPROTO_IP,
		IP_ADD_MEMBERSHIP,
		(char *)&ssdpMcastAddr,
		sizeof(struct ip_mreq));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() IP_ADD_MEMBERSHIP (join "
			"multicast group): %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
	/* Set multicast interface. */
	memset((void *)&addr, 0, sizeof(struct in_addr));
	inet_pton(AF_INET, gIF_IPV4, &addr);
	ret = setsockopt(*ssdpSock,
		IPPROTO_IP,
		IP_MULTICAST_IF,
		(char *)&addr,
		sizeof addr);
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_INFO,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() IP_MULTICAST_IF (set multicast "
			"interface): %s\n",
			errorBuffer);
		/* This is probably not a critical error, so let's continue. */
	}
	/* result is not checked becuase it will fail in WinMe and Win9x. */
	setsockopt(*ssdpSock, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl));
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_BROADCAST,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_BROADCAST (set broadcast): "
			"%s\n",
			errorBuffer);
		ret = UPNP_E_NETWORK_ERROR;
		goto error_handler;
	}
	ret = UPNP_E_SUCCESS;

error_handler:
	if (ret != UPNP_E_SUCCESS) {
		UpnpCloseSocket(*ssdpSock);
	}

	return ret;
}

	#ifdef INCLUDE_CLIENT_APIS
/*!
 * \brief Creates the SSDP IPv4 socket to be used by the control point.
 *
 * \return UPNP_E_SUCCESS on successful socket creation.
 */
static int create_ssdp_sock_reqv4(
	/*! [out] SSDP IPv4 request socket to be created. */
	SOCKET *ssdpReqSock)
{
	char errorBuffer[ERROR_BUFFER_LEN];
	u_char ttl = 4;

	*ssdpReqSock = socket(AF_INET, SOCK_DGRAM, 0);
	if (*ssdpReqSock == INVALID_SOCKET) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in socket(): %s\n",
			errorBuffer);
		return UPNP_E_OUTOF_SOCKET;
	}
	setsockopt(
		*ssdpReqSock, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl));
	/* just do it, regardless if fails or not. */
	sock_make_no_blocking(*ssdpReqSock);

	return UPNP_E_SUCCESS;
}
	#endif /* INCLUDE_CLIENT_APIS */

	#ifdef UPNP_ENABLE_IPV6
/*!
 * \brief This function ...
 */
static int create_ssdp_sock_v6(
	/* [] SSDP IPv6 socket to be created. */
	SOCKET *ssdpSock)
{
	char errorBuffer[ERROR_BUFFER_LEN];
	struct ipv6_mreq ssdpMcastAddr;
	struct sockaddr_storage __ss;
	struct sockaddr_in6 *ssdpAddr6 = (struct sockaddr_in6 *)&__ss;
	int onOff;
	int ret = 0;

	*ssdpSock = socket(AF_INET6, SOCK_DGRAM, 0);
	if (*ssdpSock == INVALID_SOCKET) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in socket(): %s\n",
			errorBuffer);

		return UPNP_E_OUTOF_SOCKET;
	}
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_REUSEADDR,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_REUSEADDR: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
		#if (defined(BSD) && !defined(__GNU__)) || defined(__APPLE__)
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_REUSEPORT,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_REUSEPORT: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
		#endif /* BSD, __APPLE__ */
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		IPPROTO_IPV6,
		IPV6_V6ONLY,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() IPV6_V6ONLY: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
	memset(&__ss, 0, sizeof(__ss));
	ssdpAddr6->sin6_family = (sa_family_t)AF_INET6;
	ssdpAddr6->sin6_addr = in6addr_any;
		#ifndef _WIN32
	ssdpAddr6->sin6_scope_id = gIF_INDEX;
		#endif
	ssdpAddr6->sin6_port = htons(SSDP_PORT);
	ret = bind(*ssdpSock, (struct sockaddr *)ssdpAddr6, sizeof(*ssdpAddr6));
	if (ret == -1) {
		#ifndef _WIN32
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in bind(), addr=%s, index=%d, port=%d: %s\n",
			gIF_IPV6,
			gIF_INDEX,
			SSDP_PORT,
			errorBuffer);
		ret = UPNP_E_SOCKET_BIND;
		goto error_handler;
		#else
		int wsa_err = WSAGetLastError();
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in bind(), addr=%s, index=%d, port=%d: %d\n",
			gIF_IPV6,
			gIF_INDEX,
			SSDP_PORT,
			wsa_err);
		ret = UPNP_E_SOCKET_BIND;
		goto error_handler;
		#endif
	}
	memset((void *)&ssdpMcastAddr, 0, sizeof(ssdpMcastAddr));
	ssdpMcastAddr.ipv6mr_interface = gIF_INDEX;
	inet_pton(
		AF_INET6, SSDP_IPV6_LINKLOCAL, &ssdpMcastAddr.ipv6mr_multiaddr);
	ret = setsockopt(*ssdpSock,
		IPPROTO_IPV6,
		IPV6_JOIN_GROUP,
		(char *)&ssdpMcastAddr,
		sizeof(ssdpMcastAddr));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		uint32_t *p = (uint32_t *)&ssdpMcastAddr.ipv6mr_multiaddr;
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() IPV6_JOIN_GROUP (join multicast "
			"group): %s.\n"
			"SSDP_IPV6_LINKLOCAL = %s,\n"
			"ipv6mr_interface = %u,\n"
			"ipv6mr_multiaddr[0,1,2,3] = "
			"0x%08X:0x%08X:0x%08X:0x%08X\n"
			"gIF_NAME = %s\n",
			errorBuffer,
			SSDP_IPV6_LINKLOCAL,
			ssdpMcastAddr.ipv6mr_interface,
			p[0],
			p[1],
			p[2],
			p[3],
			gIF_NAME);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_BROADCAST,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_BROADCAST (set broadcast): "
			"%s\n",
			errorBuffer);
		ret = UPNP_E_NETWORK_ERROR;
		goto error_handler;
	}
	ret = UPNP_E_SUCCESS;

error_handler:
	if (ret != UPNP_E_SUCCESS) {
		UpnpCloseSocket(*ssdpSock);
	}

	return ret;
}
	#endif /* IPv6 */

	#ifdef UPNP_ENABLE_IPV6
/*!
 * \brief This function ...
 */
static int create_ssdp_sock_v6_ula_gua(
	/*! [] SSDP IPv6 socket to be created. */
	SOCKET *ssdpSock)
{
	char errorBuffer[ERROR_BUFFER_LEN];
	struct ipv6_mreq ssdpMcastAddr;
	struct sockaddr_storage __ss;
	struct sockaddr_in6 *ssdpAddr6 = (struct sockaddr_in6 *)&__ss;
	int onOff;
	int ret = 0;

	*ssdpSock = socket(AF_INET6, SOCK_DGRAM, 0);
	if (*ssdpSock == INVALID_SOCKET) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in socket(): %s\n",
			errorBuffer);

		return UPNP_E_OUTOF_SOCKET;
	}
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_REUSEADDR,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_REUSEADDR: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
		#if (defined(BSD) && !defined(__GNU__)) || defined(__APPLE__)
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_REUSEPORT,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_REUSEPORT: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
		#endif /* BSD, __APPLE__ */
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		IPPROTO_IPV6,
		IPV6_V6ONLY,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() IPV6_V6ONLY: %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
	memset(&__ss, 0, sizeof(__ss));
	ssdpAddr6->sin6_family = (sa_family_t)AF_INET6;
	ssdpAddr6->sin6_addr = in6addr_any;
	ssdpAddr6->sin6_scope_id = gIF_INDEX;
	ssdpAddr6->sin6_port = htons(SSDP_PORT);
	ret = bind(*ssdpSock, (struct sockaddr *)ssdpAddr6, sizeof(*ssdpAddr6));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in bind(), addr=0x%032lX, port=%d: %s\n",
			0lu,
			SSDP_PORT,
			errorBuffer);
		ret = UPNP_E_SOCKET_BIND;
		goto error_handler;
	}
	memset((void *)&ssdpMcastAddr, 0, sizeof(ssdpMcastAddr));
	ssdpMcastAddr.ipv6mr_interface = gIF_INDEX;
	/* SITE LOCAL */
	inet_pton(
		AF_INET6, SSDP_IPV6_SITELOCAL, &ssdpMcastAddr.ipv6mr_multiaddr);
	ret = setsockopt(*ssdpSock,
		IPPROTO_IPV6,
		IPV6_JOIN_GROUP,
		(char *)&ssdpMcastAddr,
		sizeof(ssdpMcastAddr));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() IPV6_JOIN_GROUP (join multicast "
			"group): %s\n",
			errorBuffer);
		ret = UPNP_E_SOCKET_ERROR;
		goto error_handler;
	}
	onOff = 1;
	ret = setsockopt(*ssdpSock,
		SOL_SOCKET,
		SO_BROADCAST,
		(char *)&onOff,
		sizeof(onOff));
	if (ret == -1) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in setsockopt() SO_BROADCAST (set broadcast): "
			"%s\n",
			errorBuffer);
		ret = UPNP_E_NETWORK_ERROR;
		goto error_handler;
	}
	ret = UPNP_E_SUCCESS;

error_handler:
	if (ret != UPNP_E_SUCCESS) {
		UpnpCloseSocket(*ssdpSock);
	}

	return ret;
}
	#endif /* IPv6 */

	#ifdef INCLUDE_CLIENT_APIS
		#ifdef UPNP_ENABLE_IPV6
/*!
 * \brief Creates the SSDP IPv6 socket to be used by the control
 * point.
 */
static int create_ssdp_sock_reqv6(
	/* [out] SSDP IPv6 request socket to be created. */
	SOCKET *ssdpReqSock)
{
	char errorBuffer[ERROR_BUFFER_LEN];
	char hops = 1;

	*ssdpReqSock = socket(AF_INET6, SOCK_DGRAM, 0);
	if (*ssdpReqSock == INVALID_SOCKET) {
		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);
		UpnpPrintf(UPNP_CRITICAL,
			SSDP,
			__FILE__,
			__LINE__,
			"Error in socket(): %s\n",
			errorBuffer);
		return UPNP_E_OUTOF_SOCKET;
	}
	/* MUST use scoping of IPv6 addresses to control the propagation os SSDP
	 * messages instead of relying on the Hop Limit (Equivalent to the TTL
	 * limit in IPv4). */
	setsockopt(*ssdpReqSock,
		IPPROTO_IPV6,
		IPV6_MULTICAST_HOPS,
		&hops,
		sizeof(hops));
	/* just do it, regardless if fails or not. */
	sock_make_no_blocking(*ssdpReqSock);

	return UPNP_E_SUCCESS;
}
		#endif /* IPv6 */
	#endif	       /* INCLUDE_CLIENT_APIS */

int get_ssdp_sockets(MiniServerSockArray *out)
{
	int retVal;

	#ifdef INCLUDE_CLIENT_APIS
	out->ssdpReqSock4 = INVALID_SOCKET;
	out->ssdpReqSock6 = INVALID_SOCKET;
	/* Create the IPv4 socket for SSDP REQUESTS */
	if (strlen(gIF_IPV4) > (size_t)0) {
		retVal = create_ssdp_sock_reqv4(&out->ssdpReqSock4);
		if (retVal != UPNP_E_SUCCESS)
			return retVal;
		/* For use by ssdp control point. */
		gSsdpReqSocket4 = out->ssdpReqSock4;
	} else
		out->ssdpReqSock4 = INVALID_SOCKET;
		/* Create the IPv6 socket for SSDP REQUESTS */
		#ifdef UPNP_ENABLE_IPV6
	if (strlen(gIF_IPV6) > (size_t)0) {
		retVal = create_ssdp_sock_reqv6(&out->ssdpReqSock6);
		if (retVal != UPNP_E_SUCCESS) {
			UpnpCloseSocket(out->ssdpReqSock4);
			return retVal;
		}
		/* For use by ssdp control point. */
		gSsdpReqSocket6 = out->ssdpReqSock6;
	} else
		out->ssdpReqSock6 = INVALID_SOCKET;
		#endif /* IPv6 */
	#endif	       /* INCLUDE_CLIENT_APIS */
	/* Create the IPv4 socket for SSDP */
	if (strlen(gIF_IPV4) > (size_t)0) {
		retVal = create_ssdp_sock_v4(&out->ssdpSock4);
		if (retVal != UPNP_E_SUCCESS) {
	#ifdef INCLUDE_CLIENT_APIS
			UpnpCloseSocket(out->ssdpReqSock4);
			UpnpCloseSocket(out->ssdpReqSock6);
	#endif /* INCLUDE_CLIENT_APIS */
			return retVal;
		}
	} else
		out->ssdpSock4 = INVALID_SOCKET;
	#ifdef UPNP_ENABLE_IPV6
	/* Create the IPv6 socket for SSDP */
	if (strlen(gIF_IPV6) > (size_t)0) {
		retVal = create_ssdp_sock_v6(&out->ssdpSock6);
		if (retVal != UPNP_E_SUCCESS) {
			UpnpCloseSocket(out->ssdpSock4);
		#ifdef INCLUDE_CLIENT_APIS
			UpnpCloseSocket(out->ssdpReqSock4);
			UpnpCloseSocket(out->ssdpReqSock6);
		#endif /* INCLUDE_CLIENT_APIS */
			return retVal;
		}
	} else
		out->ssdpSock6 = INVALID_SOCKET;
	if (strlen(gIF_IPV6_ULA_GUA) > (size_t)0) {
		retVal = create_ssdp_sock_v6_ula_gua(&out->ssdpSock6UlaGua);
		if (retVal != UPNP_E_SUCCESS) {
			UpnpCloseSocket(out->ssdpSock4);
			UpnpCloseSocket(out->ssdpSock6);
		#ifdef INCLUDE_CLIENT_APIS
			UpnpCloseSocket(out->ssdpReqSock4);
			UpnpCloseSocket(out->ssdpReqSock6);
		#endif /* INCLUDE_CLIENT_APIS */
			return retVal;
		}
	} else
		out->ssdpSock6UlaGua = INVALID_SOCKET;
	#endif /* UPNP_ENABLE_IPV6 */

	return UPNP_E_SUCCESS;
}
#endif /* EXCLUDE_SSDP */

/* @} SSDPlib */
