--- a/rvinterf/asyncshell/main.c	Wed Oct 26 22:00:39 2016 +0000
+++ b/rvinterf/asyncshell/main.c	Wed Oct 26 22:25:18 2016 +0000
@@ -7,6 +7,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include "exitcodes.h"
 
 char *socket_pathname = "/tmp/rvinterf_socket";
 char *rvinterf_ttyport;
@@ -49,14 +50,14 @@
 		default:
 usage:			fprintf(stderr,
 				"usage: %s [options] [command]\n", argv[0]);
-			exit(1);
+			exit(ERROR_USAGE);
 		}
 	if (rvinterf_ttyport) {
 		if (sopt) {
 			fprintf(stderr,
 			"%s error: -p and -s options are mutually exclusive\n",
 				argv[0]);
-			exit(1);
+			exit(ERROR_USAGE);
 		}
 		launch_rvinterf(rvinterf_ttyport);
 	} else {
@@ -64,7 +65,7 @@
 			fprintf(stderr,
 "%s error: -B, -l and -w options are meaningful only when launching rvinterf\n",
 				argv[0]);
-			exit(1);
+			exit(ERROR_USAGE);
 		}
 		connect_local_socket();
 	}
@@ -85,7 +86,7 @@
 				continue;
 			tty_cleanup();
 			perror("select");
-			exit(1);
+			exit(ERROR_UNIX);
 		}
 		if (FD_ISSET(0, &fds))
 			handle_tty_input();