xsupgui_mac_utils.c

linux 下通过802.1认证的安装包

/**
 *
 * Licensed under a dual GPL/BSD license.  (See LICENSE file for more info.)
 *
 * \file xsupgui_mac_utils.c
 *
 * \author [e-mail]
 *
 * $Id: xsupgui_mac_utils.c,v 1.1.2.1 2007/05/15 17:15:57 chessing Exp $
 * $Date: 2007/05/15 17:15:57 $
 **/

/**
 * \brief Verify that the string is a valid MAC address.
 *
 *  Verify that we have a valid MAC address by making sure it is of the form :
 *  xx:xx:xx:xx:xx:xx
 *   or
 *  xx-xx-xx-xx-xx-xx
 *
 * @param[in] inhexstr   The string that should contain a MAC address.
 *
 * \retval 0 if the string isn't a MAC address.
 * \retval 1 if the string is a MAC address.
 **/
int xsupgui_mac_utils_is_valid_mac(char *inhexstr)
{
	int i;

	// A valid MAC should be 17 characters.
	if (strlen(inhexstr) != 17) return 0;

	for (i=0; i<17; i++)
	{
		if ((i == 2) || (i == 5) || (i == 8) || (i == 11) || (i == 14))
		{
			if (is_delim(inhexstr[i]) == 0) return 0;
		}
		else
		{
			if (is_hex(inhexstr[i]) == 0) return 0;
		}
	}

	return 1;
}

/**
 *  \brief Convert a string that has passed the validation test above to
 *			a hex MAC address.
 *
 * @param[in] instr   The string that we need to convert to a binary version 
 *                    of the MAC address.
 *
 * @param[in] mac   The MAC binary version of the MAC address.
 **/
void xsupgui_mac_utils_convert_mac(char *instr, char *mac)
{
	if (strlen(instr) != 17)
	{
		printf("Invalid string passed to %s()!\n", __FUNCTION__);
		return;
	}

  mac[0] = ((ctonib(instr[0]) << 4) | ctonib(instr[1]));
  mac[1] = ((ctonib(instr[3]) << 4) | ctonib(instr[4]));
  mac[2] = ((ctonib(instr[6]) << 4) | ctonib(instr[7]));
  mac[3] = ((ctonib(instr[9]) << 4) | ctonib(instr[10]));
  mac[4] = ((ctonib(instr[12]) << 4) | ctonib(instr[13]));
  mac[5] = ((ctonib(instr[15]) << 4) | ctonib(instr[16]));
}