do not (continue) on a stdin pipe

diff --git a/usr.bin/mail/collect.c b/usr.bin/mail/collect.c
index 4ae264d..e4dd7c5 100644 (file)
--- a/usr.bin/mail/collect.c
+++ b/usr.bin/mail/collect.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: collect.c,v 1.3 1997/04/10 15:33:50 deraadt Exp $     */
+/*     $OpenBSD: collect.c,v 1.4 1997/04/13 20:22:39 deraadt Exp $     */
 /*     $NetBSD: collect.c,v 1.6 1996/06/08 19:48:16 christos Exp $     */
 
 /*
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)collect.c  8.2 (Berkeley) 4/19/94";
 #else
-static char rcsid[] = "$OpenBSD: collect.c,v 1.3 1997/04/10 15:33:50 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: collect.c,v 1.4 1997/04/13 20:22:39 deraadt Exp $";
 #endif
 #endif /* not lint */
 
@@ -156,8 +156,10 @@ cont:
                        fprintf(stderr,
                        "\n(Interrupt -- one more to kill letter)\n");
                } else {
-                       printf("(continue)\n");
-                       fflush(stdout);
+                       if (isatty(0)) {
+                               printf("(continue)\n");
+                               fflush(stdout);
+                       }
                }
        }
        for (;;) {