if (WSACleanup() == SOCKET_ERROR) { printf("WSACleanup() failed; %d\n", WSAGetLastError()); return -1; } }void recvproc(char * msg, int len) { printf("Recv ok!\n"); } 其实也可以通过snmp获得网络负荷情况,而且可以取得异地网络的负荷情况,但是需要异地网络中必须有一些关键服务器运行snmp代理(windows下也有该代理,可以通过添加/删除组件进行安装,缺省不安装)并且你必须知道代理的共同体密码(很多商业的网络管理软件都是这么做的,感兴趣可以去查查) 至于cpu情况,代码如下: // cpusagent.cpp (Windows NT/2000) // // Getting the CPU usage in percent on Windows NT/2000 // // (c)2000 Ashot Oganesyan K, SmartLine, Inc // mailto:[email protected], http://www.protect-me.com, http://www.codepile.com#include <windows.h> #include <conio.h> #include <stdio.h>#define SystemBasicInformation 0 #define SystemPerformanceInformation 2 #define SystemTimeInformation 3#define Li2Double(x) ((double)((x).HighPart) * 4.294967296E9 + (double)((x).LowPart))typedef struct { DWORD dwUnknown1; ULONG uKeMaximumIncrement; ULONG uPageSize; ULONG uMmNumberOfPhysicalPages; ULONG uMmLowestPhysicalPage; ULONG uMmHighestPhysicalPage; ULONG uAllocationGranularity; PVOID pLowestUserAddress; PVOID pMmHighestUserAddress; ULONG uKeActiveProcessors; BYTE bKeNumberProcessors; BYTE bUnknown2; WORD wUnknown3; } SYSTEM_BASIC_INFORMATION;typedef struct { LARGE_INTEGER liIdleTime; DWORD dwSpare[76]; } SYSTEM_PERFORMANCE_INFORMATION;typedef struct { LARGE_INTEGER liKeBootTime; LARGE_INTEGER liKeSystemTime; LARGE_INTEGER liExpTimeZoneBias; ULONG uCurrentTimeZoneId; DWORD dwReserved; } SYSTEM_TIME_INFORMATION; // ntdll!NtQuerySystemInformation (NT specific!) // // The function copies the system information of the // specified type into a buffer // // NTSYSAPI // NTSTATUS // NTAPI // NtQuerySystemInformation( // IN UINT SystemInformationClass, // information type // OUT PVOID SystemInformation, // pointer to buffer // IN ULONG SystemInformationLength, // buffer size in bytes // OUT PULONG ReturnLength OPTIONAL // pointer to a 32-bit // // variable that receives // // the number of bytes // // written to the buffer // ); typedef LONG (WINAPI *PROCNTQSI)(UINT,PVOID,ULONG,PULONG);PROCNTQSI NtQuerySystemInformation; void main(void) { SYSTEM_PERFORMANCE_INFORMATION SysPerfInfo; SYSTEM_TIME_INFORMATION SysTimeInfo; SYSTEM_BASIC_INFORMATION SysBaseInfo; double dbIdleTime; double dbSystemTime; LONG status; LARGE_INTEGER liOldIdleTime = {0,0}; LARGE_INTEGER liOldSystemTime = {0,0}; NtQuerySystemInformation = (PROCNTQSI)GetProcAddress( GetModuleHandle("ntdll"), "NtQuerySystemInformation" ); if (!NtQuerySystemInformation) return; // get number of processors in the system status = NtQuerySystemInformation(SystemBasicInformation,&SysBaseInfo,sizeof(SysBaseInfo),NULL); if (status != NO_ERROR) return;
printf("\nCPU Usage (press any key to exit): "); while(!_kbhit()) { // get new system time status = NtQuerySystemInformation(SystemTimeInformation,&SysTimeInfo,sizeof(SysTimeInfo),0); if (status!=NO_ERROR) return; // get new CPU's idle time status = NtQuerySystemInformation(SystemPerformanceInformation,&SysPerfInfo,sizeof(SysPerfInfo),NULL); if (status != NO_ERROR) return; // if it's a first call - skip it if (liOldIdleTime.QuadPart != 0) { // CurrentValue = NewValue - OldValue dbIdleTime = Li2Double(SysPerfInfo.liIdleTime) - Li2Double(liOldIdleTime); dbSystemTime = Li2Double(SysTimeInfo.liKeSystemTime) - Li2Double(liOldSystemTime); // CurrentCpuIdle = IdleTime / SystemTime dbIdleTime = dbIdleTime / dbSystemTime; // CurrentCpuUsage% = 100 - (CurrentCpuIdle * 100) / NumberOfProcessors dbIdleTime = 100.0 - dbIdleTime * 100.0 / (double)SysBaseInfo.bKeNumberProcessors + 0.5; printf("\b\b\b\b%3d%%",(UINT)dbIdleTime); } // store new CPU's idle and system time liOldIdleTime = SysPerfInfo.liIdleTime; liOldSystemTime = SysTimeInfo.liKeSystemTime;
int main(int argc, char ** argv)
{
SOCKET s;
struct sockaddr_in addr;
char msg[MAX_MSG_LENGTH];
UINT bRcvAll;
UINT length;
WSADATA wsd;
WSABUF wsbuf;
DWORD dwNumSend,
dwFlags;
long srcipaddr = 0;
long destipaddr = 0;
int nRecvlen;
int timestamp; if (argc < 5)
{
printf("Please input the arguments !\n");
printf("example : powerspy 20.20.20.233 20.20.20.233 20.20.20.233 10\n");
return -1;
} if (WSAStartup(MAKEWORD(2, 2), &wsd) != 0)
{
printf("WSAStartup() failed!\n");
return -1;
}
bRcvAll = TRUE;
addr.sin_addr.S_un.S_addr = inet_addr(argv[1]);
addr.sin_port = htons(7705);
addr.sin_family = AF_INET;
s = socket(AF_INET, SOCK_RAW, IPPROTO_IP);
if (s == INVALID_SOCKET)
{
printf("socket() failed; %d\n", WSAGetLastError());
return -1;
}
if (bind(s, (struct sockaddr *)(&addr), sizeof(addr)) == SOCKET_ERROR)
{
printf("bind() failed; %d\n", WSAGetLastError());
return -1;
}
if (WSAIoctl(s, SIO_RCVALL, &bRcvAll, sizeof(bRcvAll), NULL, 0,
&length, NULL, NULL) == SOCKET_ERROR)
{
printf("WSAIoctl() failed; %d\n", WSAGetLastError());
return -1;
}
dwFlags = 0;
wsbuf.buf = msg;
wsbuf.len = MAX_MSG_LENGTH;
// printf("%s\n", argv[0]);
// printf("%s\n", argv[1]);
// printf("%s\n", argv[2]);
// printf("%s\n", argv[3]);
// if (strcmp(argv[1], "0") == 0)
// {
// srcipaddr = 0;
// }
// else
// {
srcipaddr = inet_addr(argv[2]);
// }
// if (strcmp(argv[2], "0") == 0)
// {
// destipaddr = 0;
// }
// else
// {
destipaddr = inet_addr(argv[3]);
// }
timestamp = atoi(argv[4]) * 1000;
srcipaddr = htonl(srcipaddr);
destipaddr = htonl(destipaddr); while (1)
{
if (timestamp != 0)
Sleep(timestamp);
nRecvlen = WSARecv(s, &wsbuf, 1, &dwNumSend, &dwFlags, NULL, NULL);
if (nRecvlen != SOCKET_ERROR)
{
DecodeIPHeader(&wsbuf, srcipaddr, 0, destipaddr, 0);
// recvproc(msg, nRecvlen);
}
// else
// {
// printf("Recv failed!\n");
// }
}
if (closesocket(s) == SOCKET_ERROR)
{
printf("closesocket() failed; %d\n", WSAGetLastError());
}
if (WSACleanup() == SOCKET_ERROR)
{
printf("WSACleanup() failed; %d\n", WSAGetLastError());
return -1;
}
}void recvproc(char * msg, int len)
{
printf("Recv ok!\n");
}
其实也可以通过snmp获得网络负荷情况,而且可以取得异地网络的负荷情况,但是需要异地网络中必须有一些关键服务器运行snmp代理(windows下也有该代理,可以通过添加/删除组件进行安装,缺省不安装)并且你必须知道代理的共同体密码(很多商业的网络管理软件都是这么做的,感兴趣可以去查查)
至于cpu情况,代码如下:
// cpusagent.cpp (Windows NT/2000)
//
// Getting the CPU usage in percent on Windows NT/2000
//
// (c)2000 Ashot Oganesyan K, SmartLine, Inc
// mailto:[email protected], http://www.protect-me.com, http://www.codepile.com#include <windows.h>
#include <conio.h>
#include <stdio.h>#define SystemBasicInformation 0
#define SystemPerformanceInformation 2
#define SystemTimeInformation 3#define Li2Double(x) ((double)((x).HighPart) * 4.294967296E9 + (double)((x).LowPart))typedef struct
{
DWORD dwUnknown1;
ULONG uKeMaximumIncrement;
ULONG uPageSize;
ULONG uMmNumberOfPhysicalPages;
ULONG uMmLowestPhysicalPage;
ULONG uMmHighestPhysicalPage;
ULONG uAllocationGranularity;
PVOID pLowestUserAddress;
PVOID pMmHighestUserAddress;
ULONG uKeActiveProcessors;
BYTE bKeNumberProcessors;
BYTE bUnknown2;
WORD wUnknown3;
} SYSTEM_BASIC_INFORMATION;typedef struct
{
LARGE_INTEGER liIdleTime;
DWORD dwSpare[76];
} SYSTEM_PERFORMANCE_INFORMATION;typedef struct
{
LARGE_INTEGER liKeBootTime;
LARGE_INTEGER liKeSystemTime;
LARGE_INTEGER liExpTimeZoneBias;
ULONG uCurrentTimeZoneId;
DWORD dwReserved;
} SYSTEM_TIME_INFORMATION;
// ntdll!NtQuerySystemInformation (NT specific!)
//
// The function copies the system information of the
// specified type into a buffer
//
// NTSYSAPI
// NTSTATUS
// NTAPI
// NtQuerySystemInformation(
// IN UINT SystemInformationClass, // information type
// OUT PVOID SystemInformation, // pointer to buffer
// IN ULONG SystemInformationLength, // buffer size in bytes
// OUT PULONG ReturnLength OPTIONAL // pointer to a 32-bit
// // variable that receives
// // the number of bytes
// // written to the buffer
// );
typedef LONG (WINAPI *PROCNTQSI)(UINT,PVOID,ULONG,PULONG);PROCNTQSI NtQuerySystemInformation;
void main(void)
{
SYSTEM_PERFORMANCE_INFORMATION SysPerfInfo;
SYSTEM_TIME_INFORMATION SysTimeInfo;
SYSTEM_BASIC_INFORMATION SysBaseInfo;
double dbIdleTime;
double dbSystemTime;
LONG status;
LARGE_INTEGER liOldIdleTime = {0,0};
LARGE_INTEGER liOldSystemTime = {0,0}; NtQuerySystemInformation = (PROCNTQSI)GetProcAddress(
GetModuleHandle("ntdll"),
"NtQuerySystemInformation"
); if (!NtQuerySystemInformation)
return; // get number of processors in the system
status = NtQuerySystemInformation(SystemBasicInformation,&SysBaseInfo,sizeof(SysBaseInfo),NULL);
if (status != NO_ERROR)
return;
printf("\nCPU Usage (press any key to exit): ");
while(!_kbhit())
{
// get new system time
status = NtQuerySystemInformation(SystemTimeInformation,&SysTimeInfo,sizeof(SysTimeInfo),0);
if (status!=NO_ERROR)
return; // get new CPU's idle time
status = NtQuerySystemInformation(SystemPerformanceInformation,&SysPerfInfo,sizeof(SysPerfInfo),NULL);
if (status != NO_ERROR)
return; // if it's a first call - skip it
if (liOldIdleTime.QuadPart != 0)
{
// CurrentValue = NewValue - OldValue
dbIdleTime = Li2Double(SysPerfInfo.liIdleTime) - Li2Double(liOldIdleTime);
dbSystemTime = Li2Double(SysTimeInfo.liKeSystemTime) - Li2Double(liOldSystemTime); // CurrentCpuIdle = IdleTime / SystemTime
dbIdleTime = dbIdleTime / dbSystemTime; // CurrentCpuUsage% = 100 - (CurrentCpuIdle * 100) / NumberOfProcessors
dbIdleTime = 100.0 - dbIdleTime * 100.0 / (double)SysBaseInfo.bKeNumberProcessors + 0.5; printf("\b\b\b\b%3d%%",(UINT)dbIdleTime);
} // store new CPU's idle and system time
liOldIdleTime = SysPerfInfo.liIdleTime;
liOldSystemTime = SysTimeInfo.liKeSystemTime;
// wait one second
Sleep(1000);
}
printf("\n");
}
判断网络断开?用线程查询可以吗