[src/trunk]: src/games/fish Flush input to EOL correctly in games/fish.

[dholland <dholland%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/303afbfb4873
branches:  trunk
changeset: 984823:303afbfb4873
user:      dholland <dholland%NetBSD.org@localhost>
date:      Sun Jul 25 02:00:42 2021 +0000

description:
Flush input to EOL correctly in games/fish.

PR 54885 from Mouse, with a somewhat different patch.

diffstat:

 games/fish/fish.c |  15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diffs (42 lines):

diff -r 5b014b698266 -r 303afbfb4873 games/fish/fish.c
--- a/games/fish/fish.c Sun Jul 25 01:43:08 2021 +0000
+++ b/games/fish/fish.c Sun Jul 25 02:00:42 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fish.c,v 1.26 2021/05/02 12:25:55 rillig Exp $ */
+/*     $NetBSD: fish.c,v 1.27 2021/07/25 02:00:42 dholland Exp $       */
 
 /*-
  * Copyright (c) 1990, 1993
@@ -42,7 +42,7 @@
 #if 0
 static char sccsid[] = "@(#)fish.c     8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: fish.c,v 1.26 2021/05/02 12:25:55 rillig Exp $");
+__RCSID("$NetBSD: fish.c,v 1.27 2021/07/25 02:00:42 dholland Exp $");
 #endif
 #endif /* not lint */
 
@@ -432,15 +432,20 @@
 static void
 instructions(void)
 {
-       int input;
+       int input, c;
        pid_t pid;
        int fd;
        const char *pager;
        int status;
 
        (void)printf("Would you like instructions (y or n)? ");
-       input = getchar();
-       while (getchar() != '\n');
+       input = c = getchar();
+       while (c != '\n') {
+               c = getchar();
+               if (c == EOF) {
+                       exit(1);
+               }
+       }
        if (input != 'y')
                return;