[cpp]
//获得网卡流量信息
DWORD dwIfBufSize = 0;
BOOL bRet;
if(m_pMIT == NULL)
m_pMIT = new MIB_IFTABLE[sizeof(MIB_IFTABLE)];
bRet = ::GetIfTable(m_pMIT,&dwIfBufSize,0);
if(bRet == ERROR_INSUFFICIENT_BUFFER)//如果内存不足，则重新分配内存大小
{
if(dwIfBufSize != NULL)
delete [] m_pMIT;
m_pMIT = new MIB_IFTABLE[dwIfBufSize];
}
bRet = ::GetIfTable(m_pMIT,&dwIfBufSize,0);
if (bRet == NO_ERROR)
{
if (m_pMIT->dwNumEntries <= 1)
{
//bResult = false;
}
else
{
__int64 i64TotalOutOctets = 0;
__int64 i64TotalInOctets = 0;
//多 卡
for(int i=0; i<(m_pMIT->dwNumEntries); i++)
{
if (m_pMIT->table[i].dwType <= 23)
{
//当前上传
i64TotalOutOctets += m_pMIT->table[i].dwOutOctets;
//当前下载
i64TotalInOctets += m_pMIT->table[i].dwInOctets;
//bResult = mit.table[i].dwOperStatus;
//if (bResult)
{
//return true;
}
}
}
memset(szVal,0,sizeof(szVal));
if(m_oldUploadOctets != 0 && (i64TotalOutOctets > m_oldUploadOctets))
m_curUploadOctets = i64TotalOutOctets - m_oldUploadOctets;
m_oldUploadOctets = i64TotalOutOctets;
lengthToStr(m_curUploadOctets * 8,szVal);
m_CapabilityDlgObj.GetDlgItem(IDC_STA_NETUPSPEED)->SetWindowText(szVal);
//下载
memset(szVal,0,sizeof(szVal));
if(m_oldDownloadOctets != 0 && (i64TotalInOctets > m_oldDownloadOctets))
m_curDownloadOctets = i64TotalInOctets - m_oldDownloadOctets;
m_oldDownloadOctets = i64TotalInOctets;
lengthToStr(m_curDownloadOctets * 8,szVal);
m_CapabilityDlgObj.GetDlgItem(IDC_STA_NETDNSPEED)->SetWindowText(szVal);
}
}
还有个wincap 的例子
[cpp]
#include "stdafx.h"
#include
#include
#include "include/pcap.h"
#pragma comment(lib,"lib/Packet.lib")
#pragma comment(lib,"lib/wpcap.lib")
void usage();
void dispatcher_handler(u_char *, const struct pcap_pkthdr *, const u_char *);
void _tmain(int argc, _TCHAR* argv[])
{
pcap_t *fp;
char errbuf[PCAP_ERRBUF_SIZE];
struct timeva l st_ts;
u_int netmask;
struct bpf_program fcode;
/* 检查命令行参数的合法性 */
/* 打开输出适配器 */
if((fp= pcap_open_live("\\Device\\NPF_{4C280CAF-B56F-467D-91E2-43F8C54B5BD2}"/*我的网卡名*/,100,1,1000,errbuf))==NULL)
{
fprintf(stderr,"\nUnable to open adapter %s.\n", errbuf);
return;
}
/* 不用关心掩码，在这个过滤器中，它不会被使用 */
netmask=0xffffff;
// 编译过滤器
if (pcap_compile(fp, &fcode, "ether proto 0x8864"/*我用的是ADSL这里是设置只接收PPPOE的包*/, 1, netmask) <0 )
{
fprintf(stderr,"\nUnable to compile the packet filter. Check the syntax.\n");
/* 释放设备列表 */
return;
}
//设置过滤器
if (pcap_setfilter(fp, &fcode)<0)
{
fprintf(stderr,"\nError setting the filter.\n");
pcap_close(fp);
/* 释放设备列表 */
return;
}
/* 将接口设置为统计模式 */
if (pcap_setmode(fp, MODE_STAT)<0)
{
fprintf(stderr,"\nError setting the mode.\n");