| | 1 | /* |
| | 2 | * Copyright (c) 1989, 1993, 1994 |
| | 3 | * The Regents of the University of California. All rights reserved. |
| | 4 | * |
| | 5 | * This code is derived from software contributed to Berkeley by |
| | 6 | * Michael Fischbein. |
| | 7 | * |
| | 8 | * Redistribution and use in source and binary forms, with or without |
| | 9 | * modification, are permitted provided that the following conditions |
| | 10 | * are met: |
| | 11 | * 1. Redistributions of source code must retain the above copyright |
| | 12 | * notice, this list of conditions and the following disclaimer. |
| | 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 14 | * notice, this list of conditions and the following disclaimer in the |
| | 15 | * documentation and/or other materials provided with the distribution. |
| | 16 | * 3. All advertising materials mentioning features or use of this software |
| | 17 | * must display the following acknowledgement: |
| | 18 | * This product includes software developed by the University of |
| | 19 | * California, Berkeley and its contributors. |
| | 20 | * 4. Neither the name of the University nor the names of its contributors |
| | 21 | * may be used to endorse or promote products derived from this software |
| | 22 | * without specific prior written permission. |
| | 23 | * |
| | 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| | 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 34 | * SUCH DAMAGE. |
| | 35 | * |
| | 36 | * @(#)util.c 8.3 (Berkeley) 4/2/94 |
| | 37 | * $FreeBSD: src/bin/ls/util.c,v 1.20.2.5 2002/07/08 06:59:27 tjr Exp $ |
| | 38 | * $DragonFly: src/bin/ls/util.c,v 1.2 2003/06/17 04:22:50 dillon Exp $ |
| | 39 | */ |
| | 40 | |
| | 41 | #include <sys/types.h> |
| | 42 | #include <sys/stat.h> |
| | 43 | |
| | 44 | #include <ctype.h> |
| | 45 | #include <err.h> |
| | 46 | #include <fts.h> |
| | 47 | #include <stdio.h> |
| | 48 | #include <stdlib.h> |
| | 49 | #include <string.h> |
| | 50 | |
| | 51 | #include "ls.h" |
| | 52 | #include "extern.h" |
| | 53 | |
| | 54 | int |
| | 55 | prn_printable(const char *s) |
| | 56 | { |
| | 57 | char c; |
| | 58 | int n; |
| | 59 | |
| | 60 | for (n = 0; (c = *s) != '\0'; ++s, ++n) |
| | 61 | if (isprint((unsigned char)c)) |
| | 62 | putchar(c); |
| | 63 | else |
| | 64 | putchar('?'); |
| | 65 | return n; |
| | 66 | } |
| | 67 | |
| | 68 | /* |
| | 69 | * The fts system makes it difficult to replace fts_name with a different- |
| | 70 | * sized string, so we just calculate the real length here and do the |
| | 71 | * conversion in prn_octal() |
| | 72 | * |
| | 73 | * XXX when using f_octal_escape (-b) rather than f_octal (-B), the |
| | 74 | * length computed by len_octal may be too big. I just can't be buggered |
| | 75 | * to fix this as an efficient fix would involve a lookup table. Same goes |
| | 76 | * for the rather inelegant code in prn_octal. |
| | 77 | * |
| | 78 | * DES 1998/04/23 |
| | 79 | */ |
| | 80 | |
| | 81 | size_t |
| | 82 | len_octal(const char *s, int len) |
| | 83 | { |
| | 84 | size_t r = 0; |
| | 85 | |
| | 86 | while (len--) |
| | 87 | if (isprint((unsigned const char)*s++)) r++; else r += 4; |
| | 88 | return r; |
| | 89 | } |
| | 90 | |
| | 91 | int |
| | 92 | prn_octal(const char *s) |
| | 93 | { |
| | 94 | unsigned char ch; |
| | 95 | int len = 0; |
| | 96 | |
| | 97 | while ((ch = (unsigned char)*s++)) { |
| | 98 | if (isprint(ch) && (ch != '\"') && (ch != '\\')) |
| | 99 | putchar(ch), len++; |
| | 100 | else if (f_octal_escape) { |
| | 101 | putchar('\\'); |
| | 102 | switch (ch) { |
| | 103 | case '\\': |
| | 104 | putchar('\\'); |
| | 105 | break; |
| | 106 | case '\"': |
| | 107 | putchar('"'); |
| | 108 | break; |
| | 109 | case '\a': |
| | 110 | putchar('a'); |
| | 111 | break; |
| | 112 | case '\b': |
| | 113 | putchar('b'); |
| | 114 | break; |
| | 115 | case '\f': |
| | 116 | putchar('f'); |
| | 117 | break; |
| | 118 | case '\n': |
| | 119 | putchar('n'); |
| | 120 | break; |
| | 121 | case '\r': |
| | 122 | putchar('r'); |
| | 123 | break; |
| | 124 | case '\t': |
| | 125 | putchar('t'); |
| | 126 | break; |
| | 127 | case '\v': |
| | 128 | putchar('v'); |
| | 129 | break; |
| | 130 | default: |
| | 131 | putchar('0' + (ch >> 6)); |
| | 132 | putchar('0' + ((ch >> 3) & 7)); |
| | 133 | putchar('0' + (ch & 7)); |
| | 134 | len += 2; |
| | 135 | break; |
| | 136 | } |
| | 137 | len += 2; |
| | 138 | } |
| | 139 | else { |
| | 140 | putchar('\\'); |
| | 141 | putchar('0' + (ch >> 6)); |
| | 142 | putchar('0' + ((ch >> 3) & 7)); |
| | 143 | putchar('0' + (ch & 7)); |
| | 144 | len += 4; |
| | 145 | } |
| | 146 | } |
| | 147 | return len; |
| | 148 | } |
| | 149 | |
| | 150 | void |
| | 151 | usage(void) |
| | 152 | { |
| | 153 | (void)fprintf(stderr, |
| | 154 | #ifdef COLORLS |
| | 155 | "usage: ls [-ABCFGHLPRTWabcdfghiklnoqrstu1]" |
| | 156 | #else |
| | 157 | "usage: ls [-ABCFHLPRTWabcdfghiklnoqrstu1]" |
| | 158 | #endif |
| | 159 | " [file ...]\n"); |
| | 160 | exit(1); |
| | 161 | } |
tuxillo's projects / dragonfly.git / blame_incremental