busybox/libbb/ask_confirmation.c
Denys Vlasenko 77cb6b99a4 libbb: rename bb_ask -> bb_ask_noecho, bb_ask_confirmation -> bb_ask_y_confirmation
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-07 15:08:12 +02:00

27 lines
564 B
C

/* vi: set sw=4 ts=4: */
/*
* bb_ask_y_confirmation implementation for busybox
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
/* Read a line from stdin. If the first non-whitespace char is 'y' or 'Y',
* return 1. Otherwise return 0.
*/
int FAST_FUNC bb_ask_y_confirmation(void)
{
char first = 0;
int c;
while (((c = getchar()) != EOF) && (c != '\n')) {
if (first == 0 && !isblank(c)) {
first = c|0x20;
}
}
return first == 'y';
}