Add mosquitto/MQTT support to Windows build

Currently, sbbs.exe only
Includes non-Unix build fix in sbbscon.c for issue introduced in previous commit

3rdp/win32.release/mosquitto/include/mqtt_protocol.h

+/*
+Copyright (c) 2009-2020 Roger Light <roger@atchoo.org>
+
+All rights reserved. This program and the accompanying materials
+are made available under the terms of the Eclipse Public License 2.0
+and Eclipse Distribution License v1.0 which accompany this distribution.
+
+The Eclipse Public License is available at
+   https://www.eclipse.org/legal/epl-2.0/
+and the Eclipse Distribution License is available at
+  http://www.eclipse.org/org/documents/edl-v10.php.
+
+SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+
+Contributors:
+   Roger Light - initial implementation and documentation.
+*/
+
+#ifndef MQTT_PROTOCOL_H
+#define MQTT_PROTOCOL_H
+
+/*
+ * File: mqtt_protocol.h
+ *
+ * This header contains definitions of MQTT values as defined in the specifications.
+ */
+#define PROTOCOL_NAME_v31 "MQIsdp"
+#define PROTOCOL_VERSION_v31 3
+
+#define PROTOCOL_NAME "MQTT"
+
+#define PROTOCOL_VERSION_v311 4
+#define PROTOCOL_VERSION_v5 5
+
+
+/* Message types */
+#define CMD_CONNECT 0x10U
+#define CMD_CONNACK 0x20U
+#define CMD_PUBLISH 0x30U
+#define CMD_PUBACK 0x40U
+#define CMD_PUBREC 0x50U
+#define CMD_PUBREL 0x60U
+#define CMD_PUBCOMP 0x70U
+#define CMD_SUBSCRIBE 0x80U
+#define CMD_SUBACK 0x90U
+#define CMD_UNSUBSCRIBE 0xA0U
+#define CMD_UNSUBACK 0xB0U
+#define CMD_PINGREQ 0xC0U
+#define CMD_PINGRESP 0xD0U
+#define CMD_DISCONNECT 0xE0U
+#define CMD_AUTH 0xF0U
+
+/* Mosquitto only: for distinguishing CONNECT and WILL properties */
+#define CMD_WILL 0x100
+
+/* Enum: mqtt311_connack_codes
+ *
+ * The CONNACK results for MQTT v3.1.1, and v3.1.
+ *
+ * Values:
+ *  CONNACK_ACCEPTED - 0
+ *  CONNACK_REFUSED_PROTOCOL_VERSION - 1
+ *  CONNACK_REFUSED_IDENTIFIER_REJECTED - 2
+ *  CONNACK_REFUSED_SERVER_UNAVAILABLE - 3
+ *  CONNACK_REFUSED_BAD_USERNAME_PASSWORD - 4
+ *  CONNACK_REFUSED_NOT_AUTHORIZED - 5
+ */
+enum mqtt311_connack_codes {
+	CONNACK_ACCEPTED = 0,
+	CONNACK_REFUSED_PROTOCOL_VERSION = 1,
+	CONNACK_REFUSED_IDENTIFIER_REJECTED = 2,
+	CONNACK_REFUSED_SERVER_UNAVAILABLE = 3,
+	CONNACK_REFUSED_BAD_USERNAME_PASSWORD = 4,
+	CONNACK_REFUSED_NOT_AUTHORIZED = 5,
+};
+
+/* Enum: mqtt5_return_codes
+ * The reason codes returned in various MQTT commands.
+ *
+ * Values:
+ *  MQTT_RC_SUCCESS - 0
+ *  MQTT_RC_NORMAL_DISCONNECTION - 0
+ *  MQTT_RC_GRANTED_QOS0 - 0
+ *  MQTT_RC_GRANTED_QOS1 - 1
+ *  MQTT_RC_GRANTED_QOS2 - 2
+ *  MQTT_RC_DISCONNECT_WITH_WILL_MSG - 4
+ *  MQTT_RC_NO_MATCHING_SUBSCRIBERS - 16
+ *  MQTT_RC_NO_SUBSCRIPTION_EXISTED - 17
+ *  MQTT_RC_CONTINUE_AUTHENTICATION - 24
+ *  MQTT_RC_REAUTHENTICATE - 25
+ *  MQTT_RC_UNSPECIFIED - 128
+ *  MQTT_RC_MALFORMED_PACKET - 129
+ *  MQTT_RC_PROTOCOL_ERROR - 130
+ *  MQTT_RC_IMPLEMENTATION_SPECIFIC - 131
+ *  MQTT_RC_UNSUPPORTED_PROTOCOL_VERSION - 132
+ *  MQTT_RC_CLIENTID_NOT_VALID - 133
+ *  MQTT_RC_BAD_USERNAME_OR_PASSWORD - 134
+ *  MQTT_RC_NOT_AUTHORIZED - 135
+ *  MQTT_RC_SERVER_UNAVAILABLE - 136
+ *  MQTT_RC_SERVER_BUSY - 137
+ *  MQTT_RC_BANNED - 138
+ *  MQTT_RC_SERVER_SHUTTING_DOWN - 139
+ *  MQTT_RC_BAD_AUTHENTICATION_METHOD - 140
+ *  MQTT_RC_KEEP_ALIVE_TIMEOUT - 141
+ *  MQTT_RC_SESSION_TAKEN_OVER - 142
+ *  MQTT_RC_TOPIC_FILTER_INVALID - 143
+ *  MQTT_RC_TOPIC_NAME_INVALID - 144
+ *  MQTT_RC_PACKET_ID_IN_USE - 145
+ *  MQTT_RC_PACKET_ID_NOT_FOUND - 146
+ *  MQTT_RC_RECEIVE_MAXIMUM_EXCEEDED - 147
+ *  MQTT_RC_TOPIC_ALIAS_INVALID - 148
+ *  MQTT_RC_PACKET_TOO_LARGE - 149
+ *  MQTT_RC_MESSAGE_RATE_TOO_HIGH - 150
+ *  MQTT_RC_QUOTA_EXCEEDED - 151
+ *  MQTT_RC_ADMINISTRATIVE_ACTION - 152
+ *  MQTT_RC_PAYLOAD_FORMAT_INVALID - 153
+ *  MQTT_RC_RETAIN_NOT_SUPPORTED - 154
+ *  MQTT_RC_QOS_NOT_SUPPORTED - 155
+ *  MQTT_RC_USE_ANOTHER_SERVER - 156
+ *  MQTT_RC_SERVER_MOVED - 157
+ *  MQTT_RC_SHARED_SUBS_NOT_SUPPORTED - 158
+ *  MQTT_RC_CONNECTION_RATE_EXCEEDED - 159
+ *  MQTT_RC_MAXIMUM_CONNECT_TIME - 160
+ *  MQTT_RC_SUBSCRIPTION_IDS_NOT_SUPPORTED - 161
+ *  MQTT_RC_WILDCARD_SUBS_NOT_SUPPORTED - 162
+ */
+enum mqtt5_return_codes {
+	MQTT_RC_SUCCESS = 0,						/* CONNACK, PUBACK, PUBREC, PUBREL, PUBCOMP, UNSUBACK, AUTH */
+	MQTT_RC_NORMAL_DISCONNECTION = 0,			/* DISCONNECT */
+	MQTT_RC_GRANTED_QOS0 = 0,					/* SUBACK */
+	MQTT_RC_GRANTED_QOS1 = 1,					/* SUBACK */
+	MQTT_RC_GRANTED_QOS2 = 2,					/* SUBACK */
+	MQTT_RC_DISCONNECT_WITH_WILL_MSG = 4,		/* DISCONNECT */
+	MQTT_RC_NO_MATCHING_SUBSCRIBERS = 16,		/* PUBACK, PUBREC */
+	MQTT_RC_NO_SUBSCRIPTION_EXISTED = 17,		/* UNSUBACK */
+	MQTT_RC_CONTINUE_AUTHENTICATION = 24,		/* AUTH */
+	MQTT_RC_REAUTHENTICATE = 25,				/* AUTH */
+
+	MQTT_RC_UNSPECIFIED = 128,					/* CONNACK, PUBACK, PUBREC, SUBACK, UNSUBACK, DISCONNECT */
+	MQTT_RC_MALFORMED_PACKET = 129,				/* CONNACK, DISCONNECT */
+	MQTT_RC_PROTOCOL_ERROR = 130,				/* DISCONNECT */
+	MQTT_RC_IMPLEMENTATION_SPECIFIC = 131,		/* CONNACK, PUBACK, PUBREC, SUBACK, UNSUBACK, DISCONNECT */
+	MQTT_RC_UNSUPPORTED_PROTOCOL_VERSION = 132,	/* CONNACK */
+	MQTT_RC_CLIENTID_NOT_VALID = 133,			/* CONNACK */
+	MQTT_RC_BAD_USERNAME_OR_PASSWORD = 134,		/* CONNACK */
+	MQTT_RC_NOT_AUTHORIZED = 135,				/* CONNACK, PUBACK, PUBREC, SUBACK, UNSUBACK, DISCONNECT */
+	MQTT_RC_SERVER_UNAVAILABLE = 136,			/* CONNACK */
+	MQTT_RC_SERVER_BUSY = 137,					/* CONNACK, DISCONNECT */
+	MQTT_RC_BANNED = 138,						/* CONNACK */
+	MQTT_RC_SERVER_SHUTTING_DOWN = 139,			/* DISCONNECT */
+	MQTT_RC_BAD_AUTHENTICATION_METHOD = 140,	/* CONNACK */
+	MQTT_RC_KEEP_ALIVE_TIMEOUT = 141,			/* DISCONNECT */
+	MQTT_RC_SESSION_TAKEN_OVER = 142,			/* DISCONNECT */
+	MQTT_RC_TOPIC_FILTER_INVALID = 143,			/* SUBACK, UNSUBACK, DISCONNECT */
+	MQTT_RC_TOPIC_NAME_INVALID = 144,			/* CONNACK, PUBACK, PUBREC, DISCONNECT */
+	MQTT_RC_PACKET_ID_IN_USE = 145,				/* PUBACK, SUBACK, UNSUBACK */
+	MQTT_RC_PACKET_ID_NOT_FOUND = 146,			/* PUBREL, PUBCOMP */
+	MQTT_RC_RECEIVE_MAXIMUM_EXCEEDED = 147,		/* DISCONNECT */
+	MQTT_RC_TOPIC_ALIAS_INVALID = 148,			/* DISCONNECT */
+	MQTT_RC_PACKET_TOO_LARGE = 149,				/* CONNACK, PUBACK, PUBREC, DISCONNECT */
+	MQTT_RC_MESSAGE_RATE_TOO_HIGH = 150,		/* DISCONNECT */
+	MQTT_RC_QUOTA_EXCEEDED = 151,				/* PUBACK, PUBREC, SUBACK, DISCONNECT */
+	MQTT_RC_ADMINISTRATIVE_ACTION = 152,		/* DISCONNECT */
+	MQTT_RC_PAYLOAD_FORMAT_INVALID = 153,		/* CONNACK, DISCONNECT */
+	MQTT_RC_RETAIN_NOT_SUPPORTED = 154,			/* CONNACK, DISCONNECT */
+	MQTT_RC_QOS_NOT_SUPPORTED = 155,			/* CONNACK, DISCONNECT */
+	MQTT_RC_USE_ANOTHER_SERVER = 156,			/* CONNACK, DISCONNECT */
+	MQTT_RC_SERVER_MOVED = 157,					/* CONNACK, DISCONNECT */
+	MQTT_RC_SHARED_SUBS_NOT_SUPPORTED = 158,	/* SUBACK, DISCONNECT */
+	MQTT_RC_CONNECTION_RATE_EXCEEDED = 159,		/* CONNACK, DISCONNECT */
+	MQTT_RC_MAXIMUM_CONNECT_TIME = 160,			/* DISCONNECT */
+	MQTT_RC_SUBSCRIPTION_IDS_NOT_SUPPORTED = 161, /* SUBACK, DISCONNECT */
+	MQTT_RC_WILDCARD_SUBS_NOT_SUPPORTED = 162,	/* SUBACK, DISCONNECT */
+};
+
+/* Enum: mqtt5_property
+ * Options for use with MQTTv5 properties.
+ * Options:
+ *
+ *	MQTT_PROP_PAYLOAD_FORMAT_INDICATOR - property option.
+ *	MQTT_PROP_MESSAGE_EXPIRY_INTERVAL - property option.
+ *	MQTT_PROP_CONTENT_TYPE - property option.
+ *	MQTT_PROP_RESPONSE_TOPIC - property option.
+ *	MQTT_PROP_CORRELATION_DATA - property option.
+ *	MQTT_PROP_SUBSCRIPTION_IDENTIFIER - property option.
+ *	MQTT_PROP_SESSION_EXPIRY_INTERVAL - property option.
+ *	MQTT_PROP_ASSIGNED_CLIENT_IDENTIFIER - property option.
+ *	MQTT_PROP_SERVER_KEEP_ALIVE - property option.
+ *	MQTT_PROP_AUTHENTICATION_METHOD - property option.
+ *	MQTT_PROP_AUTHENTICATION_DATA - property option.
+ *	MQTT_PROP_REQUEST_PROBLEM_INFORMATION - property option.
+ *	MQTT_PROP_WILL_DELAY_INTERVAL - property option.
+ *	MQTT_PROP_REQUEST_RESPONSE_INFORMATION - property option.
+ *	MQTT_PROP_RESPONSE_INFORMATION - property option.
+ *	MQTT_PROP_SERVER_REFERENCE - property option.
+ *	MQTT_PROP_REASON_STRING - property option.
+ *	MQTT_PROP_RECEIVE_MAXIMUM - property option.
+ *	MQTT_PROP_TOPIC_ALIAS_MAXIMUM - property option.
+ *	MQTT_PROP_TOPIC_ALIAS - property option.
+ *	MQTT_PROP_MAXIMUM_QOS - property option.
+ *	MQTT_PROP_RETAIN_AVAILABLE - property option.
+ *	MQTT_PROP_USER_PROPERTY - property option.
+ *	MQTT_PROP_MAXIMUM_PACKET_SIZE - property option.
+ *	MQTT_PROP_WILDCARD_SUB_AVAILABLE - property option.
+ *	MQTT_PROP_SUBSCRIPTION_ID_AVAILABLE - property option.
+ *	MQTT_PROP_SHARED_SUB_AVAILABLE - property option.
+ */
+enum mqtt5_property {
+	MQTT_PROP_PAYLOAD_FORMAT_INDICATOR = 1,		/* Byte :				PUBLISH, Will Properties */
+	MQTT_PROP_MESSAGE_EXPIRY_INTERVAL = 2,		/* 4 byte int :			PUBLISH, Will Properties */
+	MQTT_PROP_CONTENT_TYPE = 3,					/* UTF-8 string :		PUBLISH, Will Properties */
+	MQTT_PROP_RESPONSE_TOPIC = 8,				/* UTF-8 string :		PUBLISH, Will Properties */
+	MQTT_PROP_CORRELATION_DATA = 9,				/* Binary Data :		PUBLISH, Will Properties */
+	MQTT_PROP_SUBSCRIPTION_IDENTIFIER = 11,		/* Variable byte int :	PUBLISH, SUBSCRIBE */
+	MQTT_PROP_SESSION_EXPIRY_INTERVAL = 17,		/* 4 byte int :			CONNECT, CONNACK, DISCONNECT */
+	MQTT_PROP_ASSIGNED_CLIENT_IDENTIFIER = 18,	/* UTF-8 string :		CONNACK */
+	MQTT_PROP_SERVER_KEEP_ALIVE = 19,			/* 2 byte int :			CONNACK */
+	MQTT_PROP_AUTHENTICATION_METHOD = 21,		/* UTF-8 string :		CONNECT, CONNACK, AUTH */
+	MQTT_PROP_AUTHENTICATION_DATA = 22,			/* Binary Data :		CONNECT, CONNACK, AUTH */
+	MQTT_PROP_REQUEST_PROBLEM_INFORMATION = 23,	/* Byte :				CONNECT */
+	MQTT_PROP_WILL_DELAY_INTERVAL = 24,			/* 4 byte int :			Will properties */
+	MQTT_PROP_REQUEST_RESPONSE_INFORMATION = 25,/* Byte :				CONNECT */
+	MQTT_PROP_RESPONSE_INFORMATION = 26,		/* UTF-8 string :		CONNACK */
+	MQTT_PROP_SERVER_REFERENCE = 28,			/* UTF-8 string :		CONNACK, DISCONNECT */
+	MQTT_PROP_REASON_STRING = 31,				/* UTF-8 string :		All except Will properties */
+	MQTT_PROP_RECEIVE_MAXIMUM = 33,				/* 2 byte int :			CONNECT, CONNACK */
+	MQTT_PROP_TOPIC_ALIAS_MAXIMUM = 34,			/* 2 byte int :			CONNECT, CONNACK */
+	MQTT_PROP_TOPIC_ALIAS = 35,					/* 2 byte int :			PUBLISH */
+	MQTT_PROP_MAXIMUM_QOS = 36,					/* Byte :				CONNACK */
+	MQTT_PROP_RETAIN_AVAILABLE = 37,			/* Byte :				CONNACK */
+	MQTT_PROP_USER_PROPERTY = 38,				/* UTF-8 string pair :	All */
+	MQTT_PROP_MAXIMUM_PACKET_SIZE = 39,			/* 4 byte int :			CONNECT, CONNACK */
+	MQTT_PROP_WILDCARD_SUB_AVAILABLE = 40,		/* Byte :				CONNACK */
+	MQTT_PROP_SUBSCRIPTION_ID_AVAILABLE = 41,	/* Byte :				CONNACK */
+	MQTT_PROP_SHARED_SUB_AVAILABLE = 42,		/* Byte :				CONNACK */
+};
+
+enum mqtt5_property_type {
+	MQTT_PROP_TYPE_BYTE = 1,
+	MQTT_PROP_TYPE_INT16 = 2,
+	MQTT_PROP_TYPE_INT32 = 3,
+	MQTT_PROP_TYPE_VARINT = 4,
+	MQTT_PROP_TYPE_BINARY = 5,
+	MQTT_PROP_TYPE_STRING = 6,
+	MQTT_PROP_TYPE_STRING_PAIR = 7
+};
+
+/* Enum: mqtt5_sub_options
+ * Options for use with MQTTv5 subscriptions.
+ *
+ * MQTT_SUB_OPT_NO_LOCAL - with this option set, if this client publishes to
+ * a topic to which it is subscribed, the broker will not publish the
+ * message back to the client.
+ *
+ * MQTT_SUB_OPT_RETAIN_AS_PUBLISHED - with this option set, messages
+ * published for this subscription will keep the retain flag as was set by
+ * the publishing client. The default behaviour without this option set has
+ * the retain flag indicating whether a message is fresh/stale.
+ *
+ * MQTT_SUB_OPT_SEND_RETAIN_ALWAYS - with this option set, pre-existing
+ * retained messages are sent as soon as the subscription is made, even
+ * if the subscription already exists. This is the default behaviour, so
+ * it is not necessary to set this option.
+ *
+ * MQTT_SUB_OPT_SEND_RETAIN_NEW - with this option set, pre-existing retained
+ * messages for this subscription will be sent when the subscription is made,
+ * but only if the subscription does not already exist.
+ *
+ * MQTT_SUB_OPT_SEND_RETAIN_NEVER - with this option set, pre-existing
+ * retained messages will never be sent for this subscription.
+ */
+enum mqtt5_sub_options {
+	MQTT_SUB_OPT_NO_LOCAL = 0x04,
+	MQTT_SUB_OPT_RETAIN_AS_PUBLISHED = 0x08,
+	MQTT_SUB_OPT_SEND_RETAIN_ALWAYS = 0x00,
+	MQTT_SUB_OPT_SEND_RETAIN_NEW = 0x10,
+	MQTT_SUB_OPT_SEND_RETAIN_NEVER = 0x20,
+};
+
+#define MQTT_MAX_PAYLOAD 268435455U
+
+#endif

3rdp/win32.release/mosquitto/mosquitto.props

+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ImportGroup Label="PropertySheets" />
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_PropertySheetDisplayName>Mosquitto MQTT Library</_PropertySheetDisplayName>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>$(MSBuildThisFileDirectory)/include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>USE_MOSQUITTO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(MSBuildThisFileDirectory)/bin/mosquitto.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup />
+</Project>
\ No newline at end of file

src/sbbs3/mqtt.h

@@ -23,9 +23,9 @@
 #define MQTT_H
 
 #include "scfgdefs.h"
+#include "dllexport.h"
 
 #include <stdarg.h>
-#include <stdint.h>
 
 #ifdef USE_MOSQUITTO
 	#include <mosquitto.h>
@@ -56,20 +56,20 @@ enum topic_depth {
 extern "C" {
 #endif
 
-int mqtt_init(struct mqtt*, scfg_t*, const char* host, const char* server);
-char* mqtt_libver(char* str, size_t size);
-char* mqtt_topic(struct mqtt*, enum topic_depth, char* str, size_t size, const char* fmt, ...);
-int mqtt_subscribe(struct mqtt*, enum topic_depth, char* str, size_t size, const char* fmt, ...);
-int mqtt_lputs(struct mqtt*, enum topic_depth, int level, const char* str);
-int mqtt_pub_strval(struct mqtt*, enum topic_depth, const char* key, const char* str);
-int mqtt_pub_uintval(struct mqtt*, enum topic_depth, const char* key, ulong value);
-int mqtt_pub_message(struct mqtt*, enum topic_depth, const char* key, const void* buf, size_t len);
-int mqtt_open(struct mqtt*);
-void mqtt_close(struct mqtt*);
-int mqtt_connect(struct mqtt*, const char* bind_address);
-int mqtt_disconnect(struct mqtt*);
-int mqtt_thread_start(struct mqtt*);
-int mqtt_thread_stop(struct mqtt*);
+DLLEXPORT int mqtt_init(struct mqtt*, scfg_t*, const char* host, const char* server);
+DLLEXPORT char* mqtt_libver(char* str, size_t size);
+DLLEXPORT char* mqtt_topic(struct mqtt*, enum topic_depth, char* str, size_t size, const char* fmt, ...);
+DLLEXPORT int mqtt_subscribe(struct mqtt*, enum topic_depth, char* str, size_t size, const char* fmt, ...);
+DLLEXPORT int mqtt_lputs(struct mqtt*, enum topic_depth, int level, const char* str);
+DLLEXPORT int mqtt_pub_strval(struct mqtt*, enum topic_depth, const char* key, const char* str);
+DLLEXPORT int mqtt_pub_uintval(struct mqtt*, enum topic_depth, const char* key, ulong value);
+DLLEXPORT int mqtt_pub_message(struct mqtt*, enum topic_depth, const char* key, const void* buf, size_t len);
+DLLEXPORT int mqtt_open(struct mqtt*);
+DLLEXPORT void mqtt_close(struct mqtt*);
+DLLEXPORT int mqtt_connect(struct mqtt*, const char* bind_address);
+DLLEXPORT int mqtt_disconnect(struct mqtt*);
+DLLEXPORT int mqtt_thread_start(struct mqtt*);
+DLLEXPORT int mqtt_thread_stop(struct mqtt*);
 
 #ifdef __cplusplus
 }

src/sbbs3/sbbs.vcxproj

@@ -43,6 +43,7 @@
     <Import Project="..\encode\encode.props" />
     <Import Project="..\hash\hash.props" />
     <Import Project="..\..\3rdp\win32.release\libarchive\libarchive.props" />
+    <Import Project="..\..\3rdp\win32.release\mosquitto\mosquitto.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
@@ -58,6 +59,7 @@
     <Import Project="..\encode\encode.props" />
     <Import Project="..\hash\hash.props" />
     <Import Project="..\..\3rdp\win32.release\libarchive\libarchive.props" />
+    <Import Project="..\..\3rdp\win32.release\mosquitto\mosquitto.props" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup>
@@ -539,6 +541,7 @@
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
+    <ClCompile Include="mqtt.c" />
     <ClCompile Include="msg_id.c">
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>

src/sbbs3/sbbscon.c

@@ -1820,6 +1820,7 @@ int main(int argc, char** argv)
 	}
 #endif
 
+#ifdef __unix__
 	if(is_daemon) {
 		lprintf(LOG_INFO,"Running as daemon");
 		if(daemon(TRUE,FALSE))  { /* Daemonize, DON'T switch to / and DO close descriptors */
@@ -1846,6 +1847,8 @@ int main(int argc, char** argv)
 
 	do_seteuid(TRUE);
 
+#endif // __unix__
+
 #ifdef _THREAD_SUID_BROKEN
 	/* check if we're using NPTL */
 /* Old (2.2) systems don't have this. */

src/sbbs3/scfglib1.c

@@ -25,6 +25,7 @@
 #include "ars_defs.h"
 #include "findstr.h"
 #include "ini_file.h"
+#include "sockwrap.h"	 // IPPORT_MQTT
 
 BOOL allocerr(char* error, size_t maxerrlen, const char* fname, const char *item, size_t size)
 {