1 /* yesno.c -- read a yes/no response from stdin 2 3 Copyright (C) 1990, 1998, 2001, 2003, 2004, 2005 Free Software 4 Foundation, Inc. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software Foundation, 18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 19 20 #ifdef HAVE_CONFIG_H 21 # include <config.h> 22 #endif 23 24 #include "yesno.h" 25 26 #include <stdlib.h> 27 #include <stdio.h> 28 29 #include "getline.h" 30 31 /* Return true if we read an affirmative line from standard input. */ 32 33 extern int rpmatch (char const *response); 34 35 bool 36 yesno (void) 37 { 38 char *response = NULL; 39 size_t response_size = 0; 40 ssize_t response_len = getline (&response, &response_size, stdin); 41 bool yes; 42 43 if (response_len <= 0) 44 yes = false; 45 else 46 { 47 response[response_len - 1] = '\0'; 48 yes = (0 < rpmatch (response)); 49 } 50 51 free (response); 52 return yes; 53 } 54