/*      $OpenBSD: conv.c,v 1.10 2014/04/19 09:28:20 sobrado Exp $       */
/*      $NetBSD: conv.c,v 1.7 2001/12/07 15:14:29 bjh21 Exp $   */

/*
 * Copyright (c) 1989, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * 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.
 */

#include <sys/types.h>

#include <stdio.h>
#include <ctype.h>

#include "hexdump.h"

void
conv_c(PR *pr, u_char *p)
{
        char buf[10];
        char const *str;

        switch(*p) {
        case '\0':
                str = "\\0";
                goto strpr;
        /* case '\a': */
        case '\007':
                if (odmode)             /* od didn't know about \a */
                        break;
                str = "\\a";
                goto strpr;
        case '\b':
                str = "\\b";
                goto strpr;
        case '\f':
                str = "\\f";
                goto strpr;
        case '\n':
                str = "\\n";
                goto strpr;
        case '\r':
                str = "\\r";
                goto strpr;
        case '\t':
                str = "\\t";
                goto strpr;
        case '\v':
                if (odmode)
                        break;
                str = "\\v";
                goto strpr;
        default:
                break;
        }
        if (isprint(*p)) {
                *pr->cchar = 'c';
                (void)printf(pr->fmt, *p);
        } else {
                (void)snprintf(buf, sizeof buf, "%03o", (int)*p);
                str = buf;
strpr:          *pr->cchar = 's';
                (void)printf(pr->fmt, str);
        }
}

void
conv_u(PR *pr, u_char *p)
{
        static const char *list[] = {
                "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
                 "bs",  "ht",  "lf",  "vt",  "ff",  "cr",  "so",  "si",
                "dle", "dc1", "dc2", "dc3", "dc4", "nak", "syn", "etb",
                "can",  "em", "sub", "esc",  "fs",  "gs",  "rs",  "us",
        };

                                                /* od used nl, not lf */
        if (*p <= 0x1f) {
                *pr->cchar = 's';
                if (odmode && *p == 0x0a)
                        (void)printf(pr->fmt, "nl");
                else
                        (void)printf(pr->fmt, list[*p]);
        } else if (*p == 0x7f) {
                *pr->cchar = 's';
                (void)printf(pr->fmt, "del");
        } else if (odmode && *p == 0x20) {      /* od replaced space with sp */
                *pr->cchar = 's';
                (void)printf(pr->fmt, " sp");
        } else if (isprint(*p)) {
                *pr->cchar = 'c';
                (void)printf(pr->fmt, *p);
        } else {
                *pr->cchar = 'x';
                (void)printf(pr->fmt, (int)*p);
        }
}