?? util.c
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/* $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 */}
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