[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * bb_ask_confirmation implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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| 6 | *
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| 7 | * This program is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * This program is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 15 | * General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 20 | *
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| 21 | */
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| 22 |
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| 23 | /* Read a line from stdin. If the first non-whitespace char is 'y' or 'Y',
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| 24 | * return 1. Otherwise return 0.
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| 25 | */
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| 26 |
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| 27 | #include <stdio.h>
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| 28 | #include <ctype.h>
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| 29 | #include "libbb.h"
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| 30 |
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| 31 | int bb_ask_confirmation(void)
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| 32 | {
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| 33 | int retval = 0;
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| 34 | int first = 1;
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| 35 | int c;
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| 36 |
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| 37 | while (((c = getchar()) != EOF) && (c != '\n')) {
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| 38 | /* Make sure we get the actual function call for isspace,
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| 39 | * as speed is not critical here. */
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| 40 | if (first && !(isspace)(c)) {
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| 41 | --first;
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| 42 | if ((c == 'y') || (c == 'Y')) {
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| 43 | ++retval;
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| 44 | }
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| 45 | }
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| 46 | }
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| 47 |
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| 48 | return retval;
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| 49 | }
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