/***

  This file is part of avahi.

  avahi is free software; you can redistribute it and/or modify it

  under the terms of the GNU Lesser General Public License as

  published by the Free Software Foundation; either version 2.1 of the

  License, or (at your option) any later version.

  avahi is distributed in the hope that it will be useful, but WITHOUT

  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General

  Public License for more details.

  You should have received a copy of the GNU Lesser General Public

  License along with avahi; if not, write to the Free Software

  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

  USA.

***/

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <string.h>

#include <stdio.h>

#include <stdlib.h>

#include <assert.h>

#include <ctype.h>

#include <avahi-common/malloc.h>

#include "util.h"

void avahi_hexdump(const void* p, size_t size) {

    const uint8_t *c = p;

    assert(p);

    printf("Dumping %lu bytes from %p:\n", (unsigned long) size, p);

    while (size > 0) {

        unsigned i;

        for (i = 0; i < 16; i++) {

            if (i < size)

                printf("%02x ", c[i]);

            else

                printf("   ");

        }

        for (i = 0; i < 16; i++) {

            if (i < size)

                printf("%c", c[i] >= 32 && c[i] < 127 ? c[i] : '.');

            else

                printf(" ");

        }

        printf("\n");

        c += 16;

        if (size <= 16)

            break;

        size -= 16;

    }

}

char *avahi_format_mac_address(char *r, size_t l, const uint8_t* mac, size_t size) {

    char *t = r;

    unsigned i;

    static const char hex[] = "0123456789abcdef";

    assert(r);

    assert(l > 0);

    assert(mac);

    if (size <= 0) {

        *r = 0;

        return r;

    }

    for (i = 0; i < size; i++) {

        if (l < 3)

            break;

        *(t++) = hex[*mac >> 4];

        *(t++) = hex[*mac & 0xF];

        *(t++) = ':';

        l -= 3;

        mac++;

    }

    if (t > r)

        *(t-1) = 0;

    else

        *r = 0;

    return r;

}

char *avahi_strup(char *s) {

    char *c;

    assert(s);

    for (c = s; *c; c++)

        *c = (char) toupper(*c);

    return s;

}

char *avahi_strdown(char *s) {

    char *c;

    assert(s);

    for (c = s; *c; c++)

        *c = (char) tolower(*c);

    return s;

}