1/* vi: set sw=4 ts=4: */ 2/* 3 * yes implementation for busybox 4 * 5 * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> 6 * 7 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 8 */ 9/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) 10 * 11 * Size reductions and removed redundant applet name prefix from error messages. 12 */ 13//config:config YES 14//config: bool "yes (956 bytes)" 15//config: default y 16//config: help 17//config: yes is used to repeatedly output a specific string, or 18//config: the default string 'y'. 19 20//applet:IF_YES(APPLET_NOEXEC(yes, yes, BB_DIR_USR_BIN, BB_SUID_DROP, yes)) 21/* was NOFORK, but then yes can't be ^C'ed if run by hush */ 22 23//kbuild:lib-$(CONFIG_YES) += yes.o 24 25/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */ 26 27//usage:#define yes_trivial_usage 28//usage: "[STRING]" 29//usage:#define yes_full_usage "\n\n" 30//usage: "Repeatedly output a line with STRING, or 'y'" 31 32#include "libbb.h" 33 34int yes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 35int yes_main(int argc UNUSED_PARAM, char **argv) 36{ 37 char **pp; 38 39 argv[0] = (char*)"y"; 40 if (argv[1]) 41 ++argv; 42 43 do { 44 pp = argv; 45 while (1) { 46 fputs(*pp, stdout); 47 if (!*++pp) 48 break; 49 putchar(' '); 50 } 51 } while (putchar('\n') != EOF); 52 53 bb_perror_nomsg_and_die(); 54} 55