X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fyesno.c;h=8aaaf3d4b63a1d7c8bc0749e0f7306d870c598d9;hb=1fa55b5e0731bc535c7f3be42d30cf2ac8725085;hp=74cbcb7420e8b99b80ddb5630b943ea9a3e815d8;hpb=6d8337bfc808cddc275899c03482eceb6aff8547;p=gnulib.git

diff --git a/lib/yesno.c b/lib/yesno.c
index 74cbcb742..8aaaf3d4b 100644
--- a/lib/yesno.c
+++ b/lib/yesno.c
@@ -1,5 +1,5 @@
 /* yesno.c -- read a yes/no response from stdin
-   Copyright (C) 1990 Free Software Foundation, Inc.
+   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
@@ -15,27 +15,38 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
+#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;
-  int rv;
 
-  fflush (stderr);
-  c = getchar ();
-  rv = (c == 'y') || (c == 'Y');
-  while (c != EOF && c != '\n')
-    c = getchar ();
+  while ((c = getchar ()) != EOF && c != '\n')
+    if ((len > 0 && len < 127) || (len == 0 && !isspace (c)))
+      buf[len++] = c;
+  buf[len] = '\0';
 
-  return rv;
+  return rpmatch (buf) == 1;
 }