From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 7 Aug 2000 15:44:09 +0000 (+0000)
Subject: Initial revision
X-Git-Tag: v1.3.12~104
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=0988fa91b684536baa56608270e76f49d7aef0dd;p=debian%2Fgzip

Initial revision
---

diff --git a/yesno.c b/yesno.c
new file mode 100644
index 0000000..8aaaf3d
--- /dev/null
+++ b/yesno.c
@@ -0,0 +1,52 @@
+/* yesno.c -- read a yes/no response from stdin
+   Copyright (C) 1990, 1998 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ctype.h>
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#include <stdio.h>
+
+/* Read one line from standard input
+   and return nonzero if that line begins with y or Y,
+   otherwise return 0. */
+
+int rpmatch ();
+
+int
+yesno ()
+{
+  /* We make some assumptions here:
+     a) leading white space in the response are not vital
+     b) the first 128 characters of the answer are enough (the rest can
+	be ignored)
+     I cannot think for a situation where this is not ok.  --drepper@gnu  */
+  char buf[128];
+  int len = 0;
+  int c;
+
+  while ((c = getchar ()) != EOF && c != '\n')
+    if ((len > 0 && len < 127) || (len == 0 && !isspace (c)))
+      buf[len++] = c;
+  buf[len] = '\0';
+
+  return rpmatch (buf) == 1;
+}