/* vi: set sw=4 ts=4: */
/*
- * bb_ask_confirmation implementation for busybox
+ * 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 tarball for details.
+ * 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',
+/* Read a line from fp. 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 FAST_FUNC bb_ask_y_confirmation_FILE(FILE *fp)
{
- int retval = 0;
- int first = 1;
+ char first = 0;
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;
- }
+ fflush_all();
+ while (((c = fgetc(fp)) != EOF) && (c != '\n')) {
+ if (first == 0 && !isblank(c)) {
+ first = c|0x20;
}
}
- return retval;
+ return first == 'y';
+}
+
+int FAST_FUNC bb_ask_y_confirmation(void)
+{
+ return bb_ask_y_confirmation_FILE(stdin);
}