When invoked with no file arguments, display usage and fail instead of

silently doing nothing.

suggested by Klemens Nanni (kl3 (at) posteo.org), from FreeBSD r92772
ok millert@

diff --git a/usr.bin/paste/paste.c b/usr.bin/paste/paste.c
index 4b00413..fd51bfa 100644 (file)
--- a/usr.bin/paste/paste.c
+++ b/usr.bin/paste/paste.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: paste.c,v 1.22 2015/12/09 19:39:10 mmcc Exp $ */
+/*     $OpenBSD: paste.c,v 1.23 2018/01/02 06:56:41 guenther Exp $     */
 
 /*
  * Copyright (c) 1989 The Regents of the University of California.
@@ -77,6 +77,9 @@ main(int argc, char *argv[])
        argc -= optind;
        argv += optind;
 
+       if (argc == 0)
+               usage();
+
        if (!delim) {
                delimcnt = 1;
                delim = "\t";