Archipelago » qemu

/*

 * QEMU System Emulator

 *

 * Copyright (c) 2003-2008 Fabrice Bellard

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#include "net/util.h"

#include <errno.h>

#include <stdlib.h>

int net_parse_macaddr(uint8_t *macaddr, const char *p)

{

    int i;

    char *last_char;

    long int offset;

    errno = 0;

    offset = strtol(p, &last_char, 0);

    if (errno == 0 && *last_char == '\0' &&

        offset >= 0 && offset <= 0xFFFFFF) {

        macaddr[3] = (offset & 0xFF0000) >> 16;

        macaddr[4] = (offset & 0xFF00) >> 8;

        macaddr[5] = offset & 0xFF;

        return 0;

    }

    for (i = 0; i < 6; i++) {

        macaddr[i] = strtol(p, (char **)&p, 16);

        if (i == 5) {

            if (*p != '\0') {

                return -1;

            }

        } else {

            if (*p != ':' && *p != '-') {

                return -1;

            }

            p++;

        }

    }

    return 0;

}