零度x's blog » VC学习

获取进程数

零度x — Wed, 09 Mar 2011 14:16:17 +0000

DWORD dwProcs[1024*2]; DWORD dwNeeded; EnumProcesses( dwProcs, sizeof(dwProcs), &dwNeeded ); 阅读全文——共124字

VC监控打印机

零度x — Sun, 02 Jan 2011 01:09:55 +0000

char temp[50];
HANDLE hPrinter = NULL;
DWORD dwNeeded = 0;
DWORD dwReturned = 0;
JOB_INFO_1 *pJobInfo = NULL;
int n = 0;
int ret = OpenPrinter(“\\\\192.168.10.13\\Canon MX310 series Printer”, &hPrinter, NULL);
if(ret == 0)
{
p->MessageBox(“打开打印机失败！”);
return 0;
}

while(p->IsListening)
{
EnumJobs(hPrinter,0,0xFFFFFFFF,1,NULL,0,&dwNeeded,&dwReturned);
if((pJobInfo = (JOB_INFO_1*)malloc(dwNeeded)) == NULL)
{
p->MessageBox(“分配空间失败！”);
ClosePrinter(hPrinter);
return 0;
}
if(!EnumJobs(hPrinter,0,0xFFFFFFFF,1,(LPBYTE)pJobInfo,dwNeeded,&dwNeeded,&dwReturned))
{
p->MessageBox(“枚举失败！”);
ClosePrinter(hPrinter);
free(pJobInfo);
return 0;
}

if(p->id != pJobInfo->JobId)
{
n = p->m_list.GetItemCount();
p->m_list.InsertItem(n, pJobInfo->pDocument);
p->m_list.SetItemText(n, 1, pJobInfo->pDatatype);
p->m_list.SetItemText(n, 2, pJobInfo->pMachineName);
p->m_list.SetItemText(n, 3, pJobInfo->pUserName);
p->m_list.SetItemText(n, 4, pJobInfo->pPrinterName);
memset(temp, 0, sizeof(temp));
itoa(pJobInfo->JobId, temp, 10);
p->m_list.SetItemText(n, 5, temp);
p->id = pJobInfo->JobId;
}
free(pJobInfo);
Sleep(1000);
}

WNET获取共享信息

零度x — Sat, 01 Jan 2011 05:04:02 +0000

char RemoteName[] = “\\\\192.168.105.9″;
DWORD ret;
NETRESOURCE nr;
memset(&nr, 0, sizeof(nr));
nr.dwScope = RESOURCE_CONNECTED;
nr.dwType = RESOURCETYPE_ANY;
nr.dwDisplayType = RESOURCEDISPLAYTYPE_GENERIC;
nr.dwUsage = RESOURCEUSAGE_CONNECTABLE;
nr.lpRemoteName = RemoteName;
ret = WNetAddConnection2(&nr, NULL, NULL, CONNECT_UPDATE_PROFILE);

if(ret != NO_ERROR)
{
MessageBox(“失败！”);
return;
}
HANDLE hEnum;
ret = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, &nr, &hEnum);
if(ret != NO_ERROR)
{
MessageBox(“失败！”);
return;
}

DWORD dwResultEnum;
BYTE buf[16384];
DWORD cbBuffer = 16384; // 16K is a good size
LPNETRESOURCE lpnrLocal = (LPNETRESOURCE)buf;
DWORD cEntries = -1;

do
{
cbBuffer = 16384;
memset(lpnrLocal, 0, 16384);
dwResultEnum = WNetEnumResource(hEnum, // resource handle
&cEntries, // defined locally as -1
lpnrLocal, // LPNETRESOURCE
&cbBuffer); // buffer size
if (dwResultEnum == NO_ERROR)
{
for (DWORD i=0; i {
//CString str_remote = lpnrLocal[i].lpRemoteName;//得到共享名称
if(lpnrLocal[i].dwType == RESOURCETYPE_PRINT)
MessageBox(lpnrLocal[i].lpRemoteName);
}
}
else if (dwResultEnum != ERROR_NO_MORE_ITEMS)
{
break;
}
}
while (dwResultEnum != ERROR_NO_MORE_ITEMS);
WNetCloseEnum(hEnum);

VC socket 实现post提交~

零度x — Thu, 02 Dec 2010 04:02:39 +0000

DWORD WINAPI Start(LPVOID lParam)
{
CPostDlg *p = (CPostDlg *)lParam;
SOCKET sock = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(sock == SOCKET_ERROR)
{
p->MessageBox(“创建套接字失败~”);
return 0;
}
SOCKADDR_IN addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(80);
char url[20] = “192.168.10.104″;

addr.sin_addr.S_un.S_addr = inet_addr(“192.168.10.104″);
int ret =connect(sock, (SOCKADDR *)&addr, sizeof(SOCKADDR_IN));
if(ret == SOCKET_ERROR)
{
p->MessageBox(“连接失败~”);
return 0;
}
char buffer[4096];
char pwd[] = “fuckhacker”;
int len = strlen(pwd) + 21;
sprintf(buffer, “POST /webshell1.php HTTP/1.1\r\n”
“Content-Type: application/x-www-form-urlencoded\r\n”
“Host: 192.168.10.104\r\n”
“Content-Length: %d\r\n”
“\r\n”
“password=%s&doing=login”,
len,
pwd);
ret = send(sock, buffer, sizeof(buffer), 0);
if(ret == SOCKET_ERROR)
{
p->MessageBox(“发送失败~”);
return 0;
}
memset(buffer, 0, sizeof(buffer));
ret = recv(sock, buffer, sizeof(buffer), 0);
if(ret == SOCKET_ERROR)
{
p->MessageBox(“接受失败~”);
return 0;
}
CString buf(buffer);
if(buf.Find(“Success”, 0) != -1)
p->MessageBox(“密码正确~”);
else
p->MessageBox(“密码错误~”);
return 0;
}

使用匿名管道实现CMD回显

零度x — Tue, 16 Nov 2010 08:55:31 +0000

DWORD WINAPI MyThread(LPVOID lParam)
{
CTestDlg *p = (CTestDlg *)lParam;

char path[1024];
char cmdline[1024];
char buffer[1024];
memset(buffer, 0, sizeof(buffer));
memset(cmdline, 0, sizeof(cmdline));
memset(path, 0, sizeof(path));
::GetSystemDirectory(path, sizeof(path));

strcpy(cmdline, “ping.exe”);
strcat(cmdline, ” 127.0.0.1″);

HANDLE hwrite,hread;
SECURITY_ATTRIBUTES sa;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
if(!::CreatePipe(&hread, &hwrite, &sa,0))
{
p->MessageBox(“创建管道出错！”);
return 0;
}

STARTUPINFO si;
memset(&si, 0, sizeof(si));
si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
si.hStdOutput = hwrite;
si.hStdError = hwrite;
si.wShowWindow = SW_HIDE;
PROCESS_INFORMATION pi;
memset(&pi, 0, sizeof(pi));

if(!::CreateProcess( NULL, cmdline, NULL, NULL, TRUE, 0, NULL, path, &si, &pi))
{
p->MessageBox(“打开进程出错！”);
return 0;
}
::CloseHandle(hwrite);

DWORD byte = 0;

p->m_out = “”;
while(TRUE)
{
if(!ReadFile(hread, buffer, sizeof(buffer), &byte, NULL))
break;
if(byte > 0)
{
p->m_out += buffer;
}
Sleep(1000);
}
p->UpdateData(FALSE);
return 0;
}

使用ado中的Stream对象向数据库上传图片

零度x — Tue, 26 Oct 2010 08:15:31 +0000

try
{
CoInitialize(NULL);
_ConnectionPtr pConnection(__uuidof(Connection));
_RecordsetPtr pRecordset(__uuidof(Recordset));

pConnection->ConnectionString = “Provider=SQLOLEDB.1;Persist Security Info=False;User ID = sa;Initial Catalog = CodeTest;Data Source = 164.70.6.219″;
pConnection->Open(pConnection->ConnectionString, “”, “”, -1);//连接数据库

pRecordset->Open(“SELECT * FROM ma_q_test”,_variant_t((IDispatch*)pConnection,true),adOpenStatic,adLockOptimistic,adCmdText);
//打开记录集

_StreamPtr pStream(__uuidof(Stream));
_variant_t varOptional(DISP_E_PARAMNOTFOUND,VT_ERROR);
pStream->PutType(adTypeBinary);//设置类型为二进制
pStream->Open(varOptional, adModeUnknown, adOpenStreamUnspecified, _bstr_t(), _bstr_t());//生成二进制流
pStream->LoadFromFile(_bstr_t(“D:\\1.jpg”));//读取文件
_variant_t varBLOB = pStream->Read(adReadAll);//读取到varBLOB

pRecordset->AddNew();//曾加一条记录
pRecordset->GetFields()->GetItem(“image”)->Value = varBLOB;//保存数据对象
pRecordset->PutCollect(“id”, “1″);//设置id
pRecordset->Update();//更新~

pStream->Close();
pStream.Release();
pRecordset->Close();
pRecordset.Release();
if(pConnection->State)
pConnection->Close();
pConnection.Release();
CoUninitialize();
}
catch(_com_error e)
{
MessageBox(e.ErrorMessage());
}

VC ado sql数据库查询

零度x — Fri, 22 Oct 2010 05:05:32 +0000

CString str;

::CoInitialize(NULL);
try
{
_ConnectionPtr conn(__uuidof(Connection));
_RecordsetPtr record(__uuidof(Recordset));

conn->ConnectionString = “Provider=SQLOLEDB.1;Persist Security Info=False;
User ID = sa;//用户名
Initial Catalog = CodeTest;//表名
Data Source = 164.70.6.219″; //服务器地址

conn->Open(conn->ConnectionString, “”, “”, -1);

record = conn->Execute( “select * from CPost”, NULL, adCmdUnknown);
while(!record->myEOF)
{
_variant_t temp = record->GetCollect(“PostName”);//列名，可以是数字
if(temp.vt != VT_NULL)
{
str = (LPCSTR)_bstr_t(temp);
MessageBox(str.GetBuffer(str.GetLength()));
}
record->MoveNext();
}
if(conn->State)//不能多次关闭，否则出错
conn->Close();
record->Clone();
conn.Release();
record.Release();//注意释放，避免引起内存泄露

::CoUninitialize();
}
catch(_com_error e)///捕捉异常
{
CString errormessage;
errormessage.Format(“连接数据库失败!\r\n错误信息:%s”,e.ErrorMessage());
AfxMessageBox(errormessage);///显示错误信息
}

获取其它进程的启动参数

零度x — Sat, 08 May 2010 12:20:06 +0000

void GetWindowCommandLine(char *buffer,DWORD pid)
{
CHAR *P=::GetCommandLine();
char *pEvn;
char *pAddr;
char *pFunction;
pFunction=(char *)::GetCommandLine;
memcpy(&pAddr,pFunction+1,sizeof(char *));
DWORD dwRet;
HANDLE hProcess=::OpenProcess(PROCESS_ALL_ACCESS, false,pid);
::ReadProcessMemory(hProcess, pAddr,&pEvn, sizeof(DWORD),&dwRet);
char Buff[512];
::ReadProcessMemory(hProcess, pEvn, Buff, 512, &dwRet);
strcpy(buffer,Buff);
CloseHandle(hProcess);
}

求两个数最大公约数的算法

零度x — Mon, 15 Mar 2010 04:19:05 +0000

上课老师讲的，记录一下。
int func(int m,int n)
{
int r=1;
while(r!=0)
{
r=m%n;
m=n;
n=r;
}
return m;
}

vc实现域名转换成IP

零度x — Sat, 20 Feb 2010 12:41:11 +0000

WSADATA wsa;
WSAStartup(MAKEWORD(2,2),&wsa);
hostent *pht;
pht=gethostbyname(“www.lingdux.com”);
LPSTR pstr=pht->h_addr_list[0];
struct in_addr inaddr;
memmove(&inaddr,pstr,4);
MessageBoxA(0,inet_ntoa(inaddr),0,0);