genode/repos/os/include/nic/xml_node.h
2017-02-28 12:59:29 +01:00

55 lines
1.1 KiB
C++

/*
* \brief Xml-node routines used internally in NIC drivers
* \author Sebastian Sumpf
* \author Stefan Kalkowski
* \date 2012-10-22
*/
/*
* Copyright (C) 2012-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef _INCLUDE__NIC__XML_NODE_H_
#define _INCLUDE__NIC__XML_NODE_H_
#include <nic_session/nic_session.h>
#include <util/string.h>
namespace Genode {
/**
* Convert ASCII string to mac address
*/
inline size_t ascii_to(char const *s, Nic::Mac_address &mac)
{
enum {
HEX = true,
MAC_CHAR_LEN = 17, /* 12 number and 6 colons */
MAC_SIZE = 6,
};
if(strlen(s) < MAC_CHAR_LEN)
throw -1;
char mac_str[6];
for (int i = 0; i < MAC_SIZE; i++) {
int hi = i * 3;
int lo = hi + 1;
if (!is_digit(s[hi], HEX) || !is_digit(s[lo], HEX))
throw -1;
mac_str[i] = (digit(s[hi], HEX) << 4) | digit(s[lo], HEX);
}
Genode::memcpy(mac.addr, mac_str, MAC_SIZE);
return MAC_CHAR_LEN;
}
}
#endif /* _INCLUDE__NIC__XML_NODE_H_ */