1 /* yesno.c -- read a yes/no response from stdin
2 Copyright (C) 1990, 1998, 2001, 2003, 2004 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
29 # include "unlocked-io.h"
32 /* Read one line from standard input
33 and return nonzero if that line begins with y or Y,
34 otherwise return 0. */
36 extern int rpmatch (char const *response);
41 /* We make some assumptions here:
42 a) leading white space in the response are not vital
43 b) the first 128 characters of the answer are enough (the rest can
45 I cannot think for a situation where this is not ok. --drepper@gnu */
50 while ((c = getchar ()) != EOF && c != '\n')
51 if ((len > 0 && len < 127) || (len == 0 && !isspace (c)))
55 return rpmatch (buf) == 1;