64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
/*
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* \brief Media access control (MAC) address
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* \author Martin Stein
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* \date 2016-06-22
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*/
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/*
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* Copyright (C) 2016 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <net/mac_address.h>
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#include <util/token.h>
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#include <util/string.h>
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using namespace Net;
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using namespace Genode;
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struct Scanner_policy_number
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{
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static bool identifier_char(char c, unsigned i ) {
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return is_digit(c, true) && c !=':'; }
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};
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typedef Token<Scanner_policy_number> Mac_token;
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Mac_address Net::mac_from_string(const char * mac)
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{
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Mac_address mac_addr;
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Mac_token t(mac);
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char tmpstr[3];
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int cnt = 0;
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unsigned char ipb[6] = {0};
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while (t) {
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if (t.type() == Mac_token::WHITESPACE || t[0] == ':') {
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t = t.next();
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continue;
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}
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t.string(tmpstr, sizeof(tmpstr));
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unsigned long tmpc = 0;
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ascii_to_unsigned(tmpstr, tmpc, 16);
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ipb[cnt] = tmpc & 0xFF;
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t = t.next();
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if (cnt == 6) { break; }
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cnt++;
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}
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if (cnt == 6) {
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mac_addr.addr[0] = ipb[0];
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mac_addr.addr[1] = ipb[1];
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mac_addr.addr[2] = ipb[2];
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mac_addr.addr[3] = ipb[3];
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mac_addr.addr[4] = ipb[4];
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mac_addr.addr[5] = ipb[5];
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}
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return mac_addr;
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}
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