Use strings.h for strcasecmp, except on Windows.

Closes #2420. Thanks to Frédéric Fauberteau.

apps/mosquitto_ctrl/dynsec.c

@@ -22,6 +22,10 @@ Contributors:
 #include <stdlib.h>
 #include <string.h>
 
+#ifndef WIN32
+#  include <strings.h>
+#endif
+
 #include "mosquitto_ctrl.h"
 #include "mosquitto.h"
 #include "password_mosq.h"

apps/mosquitto_ctrl/dynsec_role.c

@@ -22,6 +22,10 @@ Contributors:
 #include <stdlib.h>
 #include <string.h>
 
+#ifndef WIN32
+#  include <strings.h>
+#endif
+
 #include "mosquitto.h"
 #include "mosquitto_ctrl.h"
 #include "password_mosq.h"

apps/mosquitto_ctrl/example.c

@@ -22,6 +22,10 @@ Contributors:
 #include <stdlib.h>
 #include <string.h>
 
+#ifndef WIN32
+#  include <strings.h>
+#endif
+
 #include "mosquitto_ctrl.h"
 
 void ctrl_help(void)

apps/mosquitto_ctrl/mosquitto_ctrl.c

@@ -24,6 +24,10 @@ Contributors:
 #include <stdlib.h>
 #include <string.h>
 
+#ifndef WIN32
+#  include <strings.h>
+#endif
+
 #include "lib_load.h"
 #include "mosquitto.h"
 #include "mosquitto_ctrl.h"

lib/strings_mosq.c

@@ -21,6 +21,10 @@ Contributors:
 #include <errno.h>
 #include <string.h>
 
+#ifndef WIN32
+#  include <strings.h>
+#endif
+
 #include "mosquitto.h"
 #include "mqtt_protocol.h"
 

plugins/dynamic-security/plugin.c

@@ -25,6 +25,10 @@ Contributors:
 #include <string.h>
 #include <sys/stat.h>
 
+#ifndef WIN32
+#  include <strings.h>
+#endif
+
 #include "json_help.h"
 #include "mosquitto.h"
 #include "mosquitto_broker.h"

plugins/dynamic-security/roles.c

@@ -24,6 +24,10 @@ Contributors:
 #include <uthash.h>
 #include <utlist.h>
 
+#ifndef WIN32
+#  include <strings.h>
+#endif
+
 #include "dynamic_security.h"
 #include "json_help.h"
 #include "mosquitto.h"

src/net.c

@@ -19,15 +19,16 @@ Contributors:
 #include "config.h"
 
 #ifndef WIN32
-#include <netdb.h>
-#include <unistd.h>
-#include <arpa/inet.h>
-#include <sys/socket.h>
-#include <netinet/tcp.h>
-#include <ifaddrs.h>
+#  include <arpa/inet.h>
+#  include <ifaddrs.h>
+#  include <netdb.h>
+#  include <netinet/tcp.h>
+#  include <strings.h>
+#  include <sys/socket.h>
+#  include <unistd.h>
 #else
-#include <winsock2.h>
-#include <ws2tcpip.h>
+#  include <winsock2.h>
+#  include <ws2tcpip.h>
 #endif
 
 #include <assert.h>
@@ -36,7 +37,7 @@ Contributors:
 #include <stdio.h>
 #include <string.h>
 #ifdef WITH_WRAP
-#include <tcpd.h>
+#  include <tcpd.h>
 #endif
 
 #ifdef HAVE_NETINET_IN_H
@@ -49,7 +50,7 @@ Contributors:
 #endif
 
 #ifdef __QNX__
-#include <net/netbyte.h>
+#  include <net/netbyte.h>
 #endif
 
 #include "mosquitto_broker_internal.h"
@@ -59,8 +60,8 @@ Contributors:
 #include "util_mosq.h"
 
 #ifdef WITH_TLS
-#include "tls_mosq.h"
-#include <openssl/err.h>
+#  include "tls_mosq.h"
+#  include <openssl/err.h>
 static int tls_ex_index_context = -1;
 static int tls_ex_index_listener = -1;
 #endif