Send a idn command to the daemon and print the first line of it before accepting user input

1 files changed, 22 insertions, 3 deletions

diff --git a/instr-client.c b/instr-client.c
index 990abc2..4855abc 100644
--- a/instr-client.c
+++ b/instr-client.c
@@ -175,12 +175,31 @@ int main(int argc, char** argv)
 		g_object_unref(client);
 		return -1;
 	}
-	g_printf("\r\nWelcome! Avtech Electrosystems Ltd. - Firmware v%s\r\n\r\n",FW_VERSION);
-	g_print("> ");
 
-	//register Pollable sources
 	out = g_io_stream_get_output_stream (G_IO_STREAM (connection));
 	in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
+
+	g_printf("\r\nWelcome! Avtech Electrosystems Ltd. - Firmware v%s\r\n",FW_VERSION);
+
+	// send an idn command
+	const gchar idncmd[] = "*idn?\n";
+	g_output_stream_write(out, (void*) &idncmd, sizeof(idncmd), NULL, NULL );
+	g_output_stream_flush(out, NULL, NULL );
+	gchar ch;
+	gboolean print = TRUE;
+	// drain the input stream until the prompt, print out everything until a newline
+	while (ch != '>') {
+		g_input_stream_read(in, &ch, 1, NULL, NULL );
+		if (ch == '\n')
+			print = FALSE;
+		if (print == TRUE)
+			printf("%c", ch);
+	}
+	printf("\r\n\r\n");
+
+	g_print("> ");
+
+	//register Pollable sources
 	GSource *outSource = NULL;
 	GSource *inSource = g_pollable_input_stream_create_source((struct GPollableInputStream*)in, NULL);
 	outSource = g_pollable_output_stream_create_source((struct GPollableOutputStream*)out, NULL);