bail like ruptime; netbsd

diff --git a/usr.bin/rwho/rwho.c b/usr.bin/rwho/rwho.c
index 961d338..c53ff95 100644 (file)
--- a/usr.bin/rwho/rwho.c
+++ b/usr.bin/rwho/rwho.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: rwho.c,v 1.5 1997/01/15 23:43:10 millert Exp $        */
+/*     $OpenBSD: rwho.c,v 1.6 1997/03/26 18:02:37 deraadt Exp $        */
 
 /*
  * Copyright (c) 1983 The Regents of the University of California.
@@ -41,7 +41,7 @@ char copyright[] =
 
 #ifndef lint
 /*static char sccsid[] = "from: @(#)rwho.c     5.5 (Berkeley) 6/1/90";*/
-static char rcsid[] = "$OpenBSD: rwho.c,v 1.5 1997/01/15 23:43:10 millert Exp $";
+static char rcsid[] = "$OpenBSD: rwho.c,v 1.6 1997/03/26 18:02:37 deraadt Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -91,6 +91,7 @@ main(argc, argv)
        register struct myutmp *mp;
        int f, n, i;
        time_t time();
+       int nhosts = 0;
 
        while ((ch = getopt(argc, argv, "a")) != -1)
                switch((char)ch) {
@@ -119,6 +120,7 @@ main(argc, argv)
                        (void) close(f);
                        continue;
                }
+               nhosts++;
                if (down(w,now)) {
                        (void) close(f);
                        continue;
@@ -142,6 +144,8 @@ main(argc, argv)
                }
                (void) close(f);
        }
+       if (nhosts == 0)
+               errx(0, "no hosts in %s.", _PATH_RWHODIR);
        qsort((char *)myutmp, nusers, sizeof (struct myutmp),
            (int (*)())utmpcmp);
        mp = myutmp;