/*	$NetBSD: util.c,v 1.27 2003/09/22 02:43:20 jschauma Exp $	*//* * Copyright (c) 1989, 1993, 1994 *	The Regents of the University of California.  All rights reserved. * * This code is derived from software contributed to Berkeley by * Michael Fischbein. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors *    may be used to endorse or promote products derived from this software *    without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */#include <sys/cdefs.h>#ifndef lint#if 0static char sccsid[] = "@(#)util.c	8.5 (Berkeley) 4/28/95";#else__RCSID("$NetBSD: util.c,v 1.27 2003/09/22 02:43:20 jschauma Exp $");#endif#endif /* not lint */#include <sys/types.h>#include <sys/stat.h>#include <ctype.h>#include <err.h>#include <fts.h>#include <limits.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#include <vis.h>#include "ls.h"#include "extern.h"intsafe_print(const char *src){	size_t len;	char *name;	int flags;	flags = VIS_NL | VIS_OCTAL;	if (f_octal_escape)		flags |= VIS_CSTYLE;	len = strlen(src);	if (len != 0 && SIZE_T_MAX/len <= 4) {		errx(EXIT_FAILURE, "%s: name too long", src);		/* NOTREACHED */	}	name = (char *)malloc(4*len+1);	if (name != NULL) {		len = strvis(name, src, flags);		printf("%s", name);		free(name);		return len;	} else		errx(EXIT_FAILURE, "out of memory!");		/* NOTREACHED */}intprintescaped(const char *src){	unsigned char c;	int n;	for (n = 0; (c = *src) != '\0'; ++src, ++n)		if (isprint(c))			(void)putchar(c);		else			(void)putchar('?');	return n;}voidusage(void){	(void)fprintf(stderr,	    "usage: ls [-AaBbCcdFfgikLlmnopqRrSsTtuWwx1] [file ...]\n");	exit(EXIT_FAILURE);	/* NOTREACHED */}