ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2024-12-23 15:32:25 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

net/mac_address: mac_from_string function

Browse Source
This commit is contained in:
Martin Stein 2016-08-25 17:45:34 +02:00 committed by Christian Helmuth
parent b50fe705d9
commit 53524be285
2 changed files with 70 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
repos/os/include/net/mac_address.h
View File

@ -1,5 +1,5 @@
/*
* \brief Ethernet network or MAC address
* \brief Media access control (MAC) address
* \author Martin Stein
* \date 2016-06-22
*/
@ -17,6 +17,11 @@
/* OS includes */
#include <net/netaddress.h>
namespace Net { using Mac_address = Net::Network_address<6, ':', true>; }
namespace Net
{
using Mac_address = Net::Network_address<6, ':', true>;
Mac_address mac_from_string(const char * mac);
}
#endif /* _NET__MAC_ADDRESS_H_ */

63
repos/os/src/lib/net/mac_address.cc Normal file
View File

@ -0,0 +1,63 @@
/*
* \brief Media access control (MAC) address
* \author Martin Stein
* \date 2016-06-22
*/
/*
* Copyright (C) 2016 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
/* Genode includes */
#include <net/mac_address.h>
#include <util/token.h>
#include <util/string.h>
using namespace Net;
using namespace Genode;
struct Scanner_policy_number
{
static bool identifier_char(char c, unsigned i ) {
return is_digit(c) && c !=':'; }
};
typedef Token<Scanner_policy_number> Token;
Mac_address Net::mac_from_string(const char * mac)
{
Mac_address mac_addr;
Token t(mac);
char tmpstr[3];
int cnt = 0;
unsigned char ipb[6] = {0};
while(t) {
if (t.type() == Token::WHITESPACE || t[0] == ':') {
t = t.next();
continue;
}
t.string(tmpstr, sizeof(tmpstr));
unsigned long tmpc = 0;
ascii_to(tmpstr, tmpc);
ipb[cnt] = tmpc & 0xFF;
t = t.next();
if (cnt == 6) { break; }
cnt++;
}
if (cnt == 6) {
mac_addr.addr[0] = ipb[0];
mac_addr.addr[1] = ipb[1];
mac_addr.addr[2] = ipb[2];
mac_addr.addr[3] = ipb[3];
mac_addr.addr[4] = ipb[4];
mac_addr.addr[5] = ipb[5];
}
return mac_addr;
}