diff options
Diffstat (limited to 'libbb/ask_confirmation.c')
-rw-r--r-- | libbb/ask_confirmation.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libbb/ask_confirmation.c b/libbb/ask_confirmation.c new file mode 100644 index 0000000..d08bc51 --- /dev/null +++ b/libbb/ask_confirmation.c @@ -0,0 +1,34 @@ +/* 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 "libbb.h" + +int FAST_FUNC 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; +} |