X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/5dd6771b28c257af405d7248639ed0e3bcdce38b..464b0345e434044712dffa4d72e72d36316d2b7c:/uip/whatnowsbr.c

diff --git a/uip/whatnowsbr.c b/uip/whatnowsbr.c
index 723d4087..6541b42e 100644
--- a/uip/whatnowsbr.c
+++ b/uip/whatnowsbr.c
@@ -409,6 +409,11 @@ WhatNow (int argc, char **argv)
 		break;
 	    }
 
+	    if (*(argp+1) == (char *)0) {
+		advise((char *)0, "attach command requires file argument(s).");
+		break;
+	    }
+
 	    /*
 	     *	Build a command line that causes the user's shell to list the file name
 	     *	arguments.  This handles and wildcard expansion, tilde expansion, etc.