인터넷 쿼리함수(windows용)

옛날에 동아리 클럽에 썼던 글입니다.

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1. 함수 원형

BOOL QueryInternet(const char *szAddress,UINT nPort,UINT nQuery)

2. 인자 설명

szAddress : 쿼리 요청을 보낼 주소
nPort : 포트번호
nQuery : 쿼리 횟수

3. 헤더 파일

1. wininet.h (?)

4. 함수 코드

BOOL QueryInternet(const char *szAddress,UINT nPort,UINT nQuery)

{

/*

Return -1 : 포트번호입력오류

Return 2 : InternetOpen() 함수에러

Return 3 : InternetConnect() 함수에러

Return 4 : HttpOpenRequest() 함수에러

Return 0 : 정상

*/

 

 if(nPort<=0 || nPort>65535)

{

return -1;

}

 

HINTERNET hIOpen = InternetOpen("TestWeb",INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,0);

if ( hIOpen == NULL )

return 2;

UINT i;

for(i=0;i<nQuery;i++)

{

HINTERNET hIConnect = InternetConnect(hIOpen,szAddress,nPort,NULL,NULL,INTERNET_SERVICE_HTTP, 0, 0);

if ( hIConnect == NULL )

{

InternetCloseHandle(hIOpen);

return 3;

}

// Request the file from the server.

 //LPCTSTR ppszAcceptTypes = "text/*" ;

HINTERNET hIReq = HttpOpenRequest(hIConnect,

NULL, // "Get"

NULL,

(LPCSTR)HTTP_VERSION,

NULL, //(LPCSTR )csUrlCon,

NULL,//&ppszAcceptTypes,

INTERNET_FLAG_RELOAD|INTERNET_FLAG_NO_CACHE_WRITE,

0);

if ( hIReq == NULL){

InternetCloseHandle(hIConnect);

InternetCloseHandle(hIOpen);

return 4;

}

// Send the request.

HttpSendRequest(hIReq, NULL, 0, NULL, 0);

BYTE pBuffer[8192]={0,};

DWORD dwBytesRead;

InternetReadFile(hIReq,pBuffer,8192,&dwBytesRead);

// Close all of the Internet handles.

InternetCloseHandle(hIReq);

InternetCloseHandle(hIConnect);

}

InternetCloseHandle(hIOpen);

}

 

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BSD용으로(리눅스&OSX) 변환 연습해봐야지,,,