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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 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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8 | */
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9 |
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10 | /* Read a line from stdin. If the first non-whitespace char is 'y' or 'Y',
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11 | * return 1. Otherwise return 0.
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12 | */
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13 |
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14 | #include "libbb.h"
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15 |
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16 | int bb_ask_confirmation(void)
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17 | {
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18 | int retval = 0;
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19 | int first = 1;
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20 | int c;
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21 |
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22 | while (((c = getchar()) != EOF) && (c != '\n')) {
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23 | /* Make sure we get the actual function call for isspace,
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24 | * as speed is not critical here. */
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25 | if (first && !(isspace)(c)) {
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26 | --first;
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27 | if ((c == 'y') || (c == 'Y')) {
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28 | ++retval;
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29 | }
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30 | }
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31 | }
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32 |
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33 | return retval;
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34 | }
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