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50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* bb_ask_confirmation implementation for busybox
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*
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* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* Read a line from stdin. If the first non-whitespace char is 'y' or 'Y',
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* return 1. Otherwise return 0.
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*/
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#include <stdio.h>
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#include <ctype.h>
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#include "libbb.h"
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int bb_ask_confirmation(void)
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{
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int retval = 0;
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int first = 1;
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int c;
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while (((c = getchar()) != EOF) && (c != '\n')) {
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/* Make sure we get the actual function call for isspace,
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* as speed is not critical here. */
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if (first && !(isspace)(c)) {
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--first;
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if ((c == 'y') || (c == 'Y')) {
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++retval;
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}
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}
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}
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return retval;
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}
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