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/*
* 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.
*/
#include <sys/types.h>
__FBSDID("$FreeBSD$");
#if 0
#ifndef lint
static char sccsid[] = "@(#)util.c 8.3 (Berkeley) 4/2/94";
#endif /* not lint */
#endif
#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 [-ABCFGHLPRTWZabcdfghiklnoqrstu1]"
#else
"usage: ls [-ABCFHLPRTWZabcdfghiklnoqrstu1]"
#endif
" [file ...]\n");
exit(1);
}
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