170 lines
4.4 KiB
C
170 lines
4.4 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)util.c 8.3 (Berkeley) 4/2/94";
|
|
#else
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#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"
|
|
|
|
void
|
|
prcopy(src, dest, len)
|
|
char *src, *dest;
|
|
int len;
|
|
{
|
|
unsigned char ch;
|
|
|
|
while (len--) {
|
|
ch = *src++;
|
|
*dest++ = isprint(ch) ? ch : '?';
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
|
|
int
|
|
len_octal(s, len)
|
|
char *s;
|
|
int len;
|
|
{
|
|
int r = 0;
|
|
|
|
while (len--)
|
|
if (isprint((unsigned char)*s++)) r++; else r += 4;
|
|
return r;
|
|
}
|
|
|
|
int
|
|
prn_octal(s)
|
|
char *s;
|
|
{
|
|
unsigned char ch;
|
|
int len = 0;
|
|
|
|
while ((ch = *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)fprintf(stderr,
|
|
#ifdef COLORLS
|
|
"usage: ls [-ACFGHLPRTWacdfgiklnoqrstu1]"
|
|
#else
|
|
"usage: ls [-ACFHLPRTWacdfgiklnoqrstu1]"
|
|
#endif
|
|
" [file ...]\n");
|
|
exit(1);
|
|
}
|