better error message for multiple filenames or args after filename

1 files changed, 7 insertions, 1 deletions

diff --git a/uxd.c b/uxd.c
index 9926386..316cb19 100644
--- a/uxd.c
+++ b/uxd.c
@@ -355,7 +355,13 @@ void parse_args(int argc, char **argv) {
 	} else {
 		/* filename (if present) must come after all -options, and
 		   there can only be one filename. */
-		if(my_optind < (argc - 1)) usage();
+		if(my_optind < (argc - 1)) {
+			if(argv[my_optind + 1][0] == '-')
+				fprintf(stderr, "%s: filename must come after all options.\n", self);
+			else
+				fprintf(stderr, "%s: only one filename allowed.\n", self);
+			exit(1);
+		}
 
 		open_input(argv[my_optind]);
 	}