/* * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. */ #if 0 #ifndef lint static char sccsid[] = "@(#)util.c 8.3 (Berkeley) 4/2/94"; #endif /* not lint */ #endif #include <sys/types.h> __RCSID("$FreeBSD: src/bin/ls/util.c,v 1.30 2002/06/30 05:13:54 obrien Exp $"); #include <sys/types.h> #include <sys/stat.h> #include <ctype.h> #include <err.h> #include <fts.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include "ls.h" #include "extern.h" int prn_printable(const char *s) { char c; int n; for (n = 0; (c = *s) != '\0'; ++s, ++n) if (isprint((unsigned char)c)) putchar(c); else putchar('?'); return n; } /* * The fts system makes it difficult to replace fts_name with a different- * sized string, so we just calculate the real length here and do the * conversion in prn_octal() * * XXX when using f_octal_escape (-b) rather than f_octal (-B), the * length computed by len_octal may be too big. I just can't be buggered * to fix this as an efficient fix would involve a lookup table. Same goes * for the rather inelegant code in prn_octal. * * DES 1998/04/23 */ size_t len_octal(const char *s, int len) { size_t r = 0; while (len--) if (isprint((unsigned const char)*s++)) r++; else r += 4; return r; } int prn_octal(const char *s) { unsigned char ch; int len = 0; while ((ch = (unsigned char)*s++)) { if (isprint(ch) && (ch != '\"') && (ch != '\\')) putchar(ch), len++; else if (f_octal_escape) { putchar('\\'); switch (ch) { case '\\': putchar('\\'); break; case '\"': putchar('"'); break; case '\a': putchar('a'); break; case '\b': putchar('b'); break; case '\f': putchar('f'); break; case '\n': putchar('n'); break; case '\r': putchar('r'); break; case '\t': putchar('t'); break; case '\v': putchar('v'); break; default: putchar('0' + (ch >> 6)); putchar('0' + ((ch >> 3) & 7)); putchar('0' + (ch & 7)); len += 2; break; } len += 2; } else { putchar('\\'); putchar('0' + (ch >> 6)); putchar('0' + ((ch >> 3) & 7)); putchar('0' + (ch & 7)); len += 4; } } return len; } void usage(void) { (void)fprintf(stderr, #ifdef COLORLS "usage: ls [-ABCFGHLPRSTWZabcdefghiklmnopqrstuwx1]" #else "usage: ls [-ABCFHLPRSTWZabcdefghiklmnopqrstuwx1]" #endif " [file ...]\n"); exit(1); }