mosquitto_sub and mosquitto_rr now open stdout in binary mode on Windows

This is so binary payloads are not modified when printing.

Thanks to Steve Mullock.

ChangeLog.txt

@@ -1,3 +1,10 @@
+2.0.12 - 2021-07-xx
+===================
+
+Clients:
+- mosquitto_sub and mosquitto_rr now open stdout in binary mode on Windows
+  so binary payloads are not modified when printing.
+
 2.0.11 - 2021-06-08
 ===================
 

client/rr_client.c

@@ -309,6 +309,7 @@ int main(int argc, char *argv[])
 #endif
 
 	mosquitto_lib_init();
+	output_init();
 
 	rc = client_config_load(&cfg, CLIENT_RR, argc, argv);
 	if(rc){

client/sub_client.c

@@ -324,7 +324,7 @@ int main(int argc, char *argv[])
 
 	mosquitto_lib_init();
 
-	rand_init();
+	output_init();
 
 	rc = client_config_load(&cfg, CLIENT_SUB, argc, argv);
 	if(rc){

client/sub_client_output.c

@@ -21,6 +21,8 @@ Contributors:
 #ifdef WIN32
    /* For rand_s on Windows */
 #  define _CRT_RAND_S
+#  include <fcntl.h>
+#  include <io.h>
 #endif
 
 #include <assert.h>
@@ -764,7 +766,7 @@ static void formatted_print(const struct mosq_config *lcfg, const struct mosquit
 }
 
 
-void rand_init(void)
+void output_init(void)
 {
 #ifndef WIN32
 	struct tm *ti = NULL;
@@ -773,6 +775,9 @@ void rand_init(void)
 	if(!get_time(&ti, &ns)){
 		srandom((unsigned int)ns);
 	}
+#else
+	/* Disable text translation so binary payloads aren't modified */
+	_setmode(_fileno(stdout), _O_BINARY);
 #endif
 }
 

client/sub_client_output.h

@@ -22,7 +22,7 @@ Contributors:
 #include "mosquitto.h"
 #include "client_shared.h"
 
-void rand_init(void);
+void output_init(void);
 void print_message(struct mosq_config *cfg, const struct mosquitto_message *message, const mosquitto_property *properties);
 
 #endif