busybox/coreutils/yes.c

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/* vi: set sw=4 ts=4: */
/*
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* yes implementation for busybox
*
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* 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
*
*/
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/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Size reductions and removed redundant applet name prefix from error messages.
*/
#include <stdio.h>
#include <stdlib.h>
#include "busybox.h"
int yes_main(int argc, char **argv)
{
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static const char fmt_str[] = " %s";
const char *fmt;
char **first_arg;
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*argv = "y";
if (argc != 1) {
++argv;
}
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first_arg = argv;
do {
fmt = fmt_str + 1;
do {
bb_printf(fmt, *argv);
fmt = fmt_str;
} while (*++argv);
argv = first_arg;
} while (putchar('\n') != EOF);
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bb_perror_nomsg_and_die();
}