source: rtems/cpukit/libmisc/shell/utils-ls.c @ 3899a537

/*      $NetBSD: util.c,v 1.28 2005/06/17 14:36:16 hira 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.
 */

#if 0
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)util.c      8.5 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: util.c,v 1.28 2005/06/17 14:36:16 hira Exp $");
#endif
#endif /* not lint */
#endif

#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 "extern-ls.h"

#define SIZE_T_MAX 255

int
safe_print(rtems_shell_ls_globals* globals, 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_jump, 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_jump, EXIT_FAILURE, "out of memory!");
                /* NOTREACHED */
}

int
printescaped(rtems_shell_ls_globals* globals, 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;
}

void
usage(rtems_shell_ls_globals* globals)
{

        (void)fprintf(stderr,
            "usage: %s [-AaBbCcdFfghikLlmnopqRrSsTtuWwx1] [file ...]\n",
            "ls");
        exit(EXIT_FAILURE);
        /* NOTREACHED */
}