blob: 4642fa03667343fafab5859899a7646c9f7cb19d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/* vi: set sw=4 ts=4: */
/*
* bb_ask_confirmation implementation for busybox
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* Read a line from stdin. If the first non-whitespace char is 'y' or 'Y',
* return 1. Otherwise return 0.
*/
#include <stdio.h>
#include <ctype.h>
#include "libbb.h"
int bb_ask_confirmation(void)
{
int retval = 0;
int first = 1;
int c;
while (((c = getchar()) != EOF) && (c != '\n')) {
/* Make sure we get the actual function call for isspace,
* as speed is not critical here. */
if (first && !(isspace)(c)) {
--first;
if ((c == 'y') || (c == 'Y')) {
++retval;
}
}
}
return retval;
}
|
