From a82735af45d968291389c816f5c2a8c999da0e9c Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Sun, 21 Jul 1996 17:13:41 +0000
Subject: [PATCH] (yesno) [HAVE_RPMATCH]: New rpmatch-based version of the
 function.

---
 lib/yesno.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/lib/yesno.c b/lib/yesno.c
index 74cbcb7420..f69954d1d1 100644
--- a/lib/yesno.c
+++ b/lib/yesno.c
@@ -19,12 +19,37 @@
 #include <config.h>
 #endif
 
+#include <ctype.h>
+#ifdef 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. */
 
+#ifdef HAVE_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;
+}
+#else
 int
 yesno ()
 {
@@ -39,3 +64,4 @@ yesno ()
 
   return rv;
 }
+#endif
-- 
2.30.2