LINUX下QT与C语言通过网卡名获取网卡IP与MAC

QString RuntimeConfig::ipAddress(QString network)
{
QList<QNetworkAddressEntry> list;
QString localIPaddress;

QNetworkInterface interface = QNetworkInterface::interfaceFromName(network);
list = interface.addressEntries();
if (!list.isEmpty())
{
localIPaddress = list.at(0).ip().toString();
}

return localIPaddress;
}

QString RuntimeConfig::macAddress(QString network)
{
QList<QNetworkInterface> netList;
int netCount;
int neti;
QNetworkInterface myNet;
netList = QNetworkInterface::allInterfaces();
netCount = netList.count();

for (neti = 0; neti < netCount; neti ++)
{
if (netList.at(neti).isValid() && netList.at(neti).name() == network)
{
myNet = netList.at(neti);
break;
}
}
return (myNet.hardwareAddress());
}

#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <arpa/inet.h>
#include <errno.h>

#include "getinfo.h"

int getip(char *ip, char *name)
{
int sock;
struct sockaddr_in sin;
struct ifreq ifr;
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock == -1)
{
perror("socket");
return -1;
}
strncpy(ifr.ifr_name, name, IFNAMSIZ);
ifr.ifr_name[IFNAMSIZ - 1] = 0;
if (ioctl(sock, SIOCGIFADDR, &ifr) < 0)
{
perror("ioctl");
return -1;
}
memcpy(&sin, &ifr.ifr_addr, sizeof(sin));
sprintf(ip, "%s", inet_ntoa(sin.sin_addr));
return 0;
}

int getmac(char *mac, char *name)
{
struct ifreq ifreq;
int   sock;

if((sock=socket(AF_INET,SOCK_STREAM,0)) <0)
{
perror( "socket ");
return   2;
}
strcpy(ifreq.ifr_name, name);
if(ioctl(sock,SIOCGIFHWADDR,&ifreq) <0)
{
perror( "ioctl ");
return   3;
}
sprintf(mac, "%02x:%02x:%02x:%02x:%02x:%02x",
(unsigned char)ifreq.ifr_hwaddr.sa_data[0],
(unsigned char)ifreq.ifr_hwaddr.sa_data[1],
(unsigned char)ifreq.ifr_hwaddr.sa_data[2],
(unsigned char)ifreq.ifr_hwaddr.sa_data[3],
(unsigned char)ifreq.ifr_hwaddr.sa_data[4],
(unsigned char)ifreq.ifr_hwaddr.sa_data[5]);
return 0;
}