/* vi: set sw=4 ts=4: */
/*
- * Mini yes implementation for busybox
+ * yes implementation for busybox
*
- * Copyright (C) 2000 Edward Betts <edward@debian.org>.
+ * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
+ * Size reductions and removed redundant applet name prefix from error messages.
*/
+//config:config YES
+//config: bool "yes (956 bytes)"
+//config: default y
+//config: help
+//config: yes is used to repeatedly output a specific string, or
+//config: the default string 'y'.
+
+//applet:IF_YES(APPLET_NOEXEC(yes, yes, BB_DIR_USR_BIN, BB_SUID_DROP, yes))
+/* was NOFORK, but then yes can't be ^C'ed if run by hush */
+
+//kbuild:lib-$(CONFIG_YES) += yes.o
-#include "busybox.h"
-#include <stdio.h>
-#include <stdlib.h>
+/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
-extern int yes_main(int argc, char **argv)
+//usage:#define yes_trivial_usage
+//usage: "[STRING]"
+//usage:#define yes_full_usage "\n\n"
+//usage: "Repeatedly output a line with STRING, or 'y'"
+
+#include "libbb.h"
+
+int yes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int yes_main(int argc UNUSED_PARAM, char **argv)
{
- int i;
-
- if (argc >= 2 && *argv[1] == '-')
- usage(yes_usage);
-
- if (argc == 1) {
- while (1)
- if (puts("y") == EOF) {
- perror("yes");
- return EXIT_FAILURE;
- }
- }
-
- while (1)
- for (i = 1; i < argc; i++)
- if (fputs(argv[i], stdout) == EOF
- || putchar(i == argc - 1 ? '\n' : ' ') == EOF) {
- perror("yes");
- return EXIT_FAILURE;
- }
-
- return EXIT_SUCCESS;
+ char **pp;
+
+ argv[0] = (char*)"y";
+ if (argv[1])
+ ++argv;
+
+ do {
+ pp = argv;
+ while (1) {
+ fputs(*pp, stdout);
+ if (!*++pp)
+ break;
+ putchar(' ');
+ }
+ } while (putchar('\n') != EOF);
+
+ bb_perror_nomsg_and_die();
}