使用Code::blocks在windows下写网络程序

鬼泣

使用Code::blocks在windows下写网络程序


　　

作者	HeYiJun  –  storysnailgmail.com
团队	ls
版权	转载请保留本声明! 本文档包含的原创代码根据GeneralPublic License,v3 发布 GPLv3 许可证的副本可以在这里获得:http://www.gnu.org/licenses/gpl.html 本文档根据GNUFree Documentation License 1.3发布 GFDL1.3许可证的副本可以在这里获得:http://www.gnu.org/licenses/gfdl.html 文中所引用的软件版权详见各软件版权具体声明，文中所提及的所有商标均为各自商标所有人的财产。 作者在此向所有提供过帮助和支持的朋友表示感谢，此致!
更新	2014-11-10 修改版权,增加linux版示例程序 略... ...

前言:
这是一个用来读取指定网页内容的程序。当前还非常原始，但已经能完成基本的功能。未来我会在这个程序的基础上不断扩充，让这个程序变成一个可用的更新检测程序！
一：windows下用Code::blocks开发网络程序   
1:
Code::blocks 中新建一个工程
2:
建完工程后点击Project菜单，选择Buildoptions...
3:
选择Linkersettings标签页，在Otherlinker options:中添加：
　　-lwsock32  
　　


　　

　　

　　

　　

　　二 源代码

• /***********************************************************************
  
  
• * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
  
•                                Eabc-version-verfy.c
  
• 
  
•     Develop Team : ls
  
•     Team  Leader : He YiJun (storysnailgmail.com)
  
•     Main Programmer : He YiJun
  
•     Programmer : Ling Ying
  
•     Program comments : Ling Ying
  
•     Dict Editor : Yang QiuXi
  
•     Documents : Ling Ying、 Yang QiuXi
  
•     Art Designer : He YiJun
  
•     License : GPLv3
  
•     Last Update : 2013-02-25
  
• * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
  
• *************************************************************************/
  
• #include // 新增 windows.h
  
• #include
  
• //#pragma comment(lib, "ws2_32.lib") // For VS
  
• #include
  
• #include
  
• #include
  
• #include
  
• #include
  
• #ifdef _MT
  
• #include
  
• #endif
  
• /* DWORD_PTR (pointer precision unsigned integer) is used for integers
  
• * that are converted to handles or pointers
  
• * This eliminates Win64 warnings regarding conversion between
  
• * 32 and 64-bit data, as HANDLEs and pointers are 64 bits in
  
• * Win64 (See Chapter 16). This is enable only if _Wp64 is defined.
  
• */
  
• #if !defined(_Wp64)
  
• #define DWORD_PTR DWORD
  
• #define LONG_PTR LONG
  
• #define INT_PTR INT
  
• #endif
  
• 
  
• #define MAX_RQRS_LEN 0x1000 //4096
  
• 
  
• /* Required for sockets */
  
• #define SERVER_PORT 80
  
• 
  
• typedef struct {
  
•   LONG32 rsLen;
  
•   BYTE record [MAX_RQRS_LEN];
  
• } RESPONSE;
  
• 
  
• typedef struct {
  
•   LONG32 rqLen;
  
•   BYTE record [MAX_RQRS_LEN];
  
• } REQUEST;
  
• 
  
• #define RQ_SIZE         sizeof (REQUEST)
  
• #define RQ_HEADER_LEN   RQ_SIZE-MAX_RQRS_LEN
  
• #define RS_SIZE         sizeof (RESPONSE)
  
• #define RS_HEADER_LEN   RS_SIZE-MAX_RQRS_LEN
  
• 
  
• static BOOL SendRequest (REQUEST *, SOCKET);
  
• static BOOL ReceiveResponse (RESPONSE *, SOCKET);
  
• static VOID PrintError (LPCTSTR , DWORD , BOOL);
  
• 
  
• struct sockaddr_in clientSAddr;
  
• 
  
• int _tmain (int argc, LPSTR argv[])
  
• {
  
•   SOCKET clientSock = INVALID_SOCKET;
  
•   REQUEST request;
  
•   RESPONSE response;
  
•   WSADATA WSStartData; /* Socket library data structure */
  
•   DWORD conVal;
  
• 
  
•   while (1) {
  
•     _tprintf (_T("%s"), _T("\nEnter Command: "));
  
•     _fgetts ((char *)request.record, MAX_RQRS_LEN-1, stdin);
  
•     /* Get rid of the new line at the end */
  
•     /* Messages use 8-bit characters */
  
•     request.record[strlen((char *)request.record)-1] = '\0';
  
• 
  
•     if (strcmp ((char *)request.record, "$Quit") == 0)
  
•       break;
  
• 
  
•     if (strncmp ((char *)request.record, "GET",3) == 0)
  
•       request.record[strlen((char *)request.record)] = '\n';
  
• 
  
•     /* Initialize the WS library. Ver 2.2 */
  
•     if (WSAStartup (MAKEWORD (2, 2), &WSStartData) != 0)
  
•       PrintError (_T("Cannot support sockets"), 1, TRUE);
  
• 
  
•     /* Connect to the server */
  
•     /* Follow the standard client socket/connect sequence */
  
•     clientSock = socket(AF_INET, SOCK_STREAM, 0);
  
•     if (clientSock == INVALID_SOCKET)
  
•       PrintError (_T("Failed client socket() call"), 2, TRUE);
  
• 
  
•     memset (&clientSAddr, 0, sizeof(clientSAddr));
  
•     clientSAddr.sin_family = AF_INET;
  
•     //clientSAddr.sin_addr.s_addr = htonl(inet_addr ("121.127.248.96"));
  
•     clientSAddr.sin_addr.s_addr = inet_addr ("121.127.248.96");
  
•     clientSAddr.sin_port = htons(SERVER_PORT);
  
• 
  
•     conVal = connect (clientSock, (struct sockaddr *)&clientSAddr, sizeof(clientSAddr));
  
•     if (conVal == SOCKET_ERROR) PrintError (_T("Failed client connect() call)"), 3, TRUE);
  
• 
  
•     SendRequest (&request, clientSock);
  
• 
  
•     ReceiveResponse (&response, clientSock);
  
• 
  
•     shutdown (clientSock, SD_BOTH); /* Disallow sends and receives */
  
• 
  
•     closesocket (clientSock);
  
•     WSACleanup();
  
• 
  
•     close (clientSock);
  
•   }
  
• 
  
•   _tprintf (_T("\n****Leaving client\n"));
  
•   return 0;
  
• }
  
• 
  
• // GET http://www.7fane.com/test.html
  
• BOOL SendRequest (REQUEST *pRequest, SOCKET sd)
  
• {
  
•   /* Send the the request to the server on socket sd */
  
•   BOOL disconnect = FALSE;
  
•   LONG32 nRemainSend, nXfer;
  
•   LPBYTE pBuffer;
  
•   //char target[]="GET http://www.7fane.com/test.html\n";
  
• 
  
•   pRequest->rqLen = (DWORD)(strlen ((char *)pRequest->record) + 1);
  
•   nRemainSend = pRequest->rqLen;
  
•   pBuffer = (LPBYTE)pRequest->record;
  
•   _tprintf (_T("%s%s"), _T("\nNow SendRequestMessage: "),pBuffer);
  
•   while (nRemainSend > 0 && !disconnect) {
  
•     nXfer = send (sd, (char *)pBuffer, nRemainSend, 0);
  
•     //nXfer = send (sd, target, strlen(target), 0);
  
•     if (nXfer == SOCKET_ERROR) PrintError (_T("client send() failed"), 5, TRUE);
  
•     disconnect = (nXfer == 0);
  
•     nRemainSend -=nXfer;
  
•     pBuffer += nXfer;
  
• 
  
•     _tprintf (_T("%s%d"), _T("\nSend btyes: "),nXfer);
  
•     //_tprintf (_T("%s%s"), _T("\nSend content: "),target);
  
•     _tprintf (_T("%s%s"), _T("\nSend content: "),pRequest->record);
  
•   }
  
•   return disconnect;
  
• }
  
• 
  
• BOOL ReceiveResponse (RESPONSE *pResponse, SOCKET sd)
  
• {
  
•   BOOL disconnect = FALSE;
  
•   LONG32 nRemainRecv, nXfer;
  
•   LPBYTE pBuffer;
  
• 
  
•   _tprintf (_T("%s"), _T("\nNow ReceiveResponseMessage! "));
  
•   while(!disconnect) {
  
•     /* Read each response and send it to std out.*/
  
•     memset (pResponse->record, 0, MAX_RQRS_LEN);
  
•     nRemainRecv = MAX_RQRS_LEN;
  
•     pBuffer = (LPBYTE)pResponse->record;
  
•     while (nRemainRecv > 0 && !disconnect) {
  
•       nXfer = recv (sd, (char *)pBuffer, nRemainRecv, 0);
  
•       if (nXfer == SOCKET_ERROR) PrintError (_T("client response recv() failed"), 7, TRUE);
  
•       disconnect = (nXfer == 0);
  
•       nRemainRecv -=nXfer;
  
•       pBuffer += nXfer;
  
• 
  
•       if(!disconnect) {
  
•         _tprintf (_T("%s[%d]"), _T("\nReceive bytes: "),nXfer);
  
•         _tprintf (_T("%s\n%s"), _T("\nReceive content: "),pResponse->record);
  
•       }
  
•     }
  
•   }
  
•   return disconnect;
  
• }
  
• 
  
• VOID PrintError (LPCTSTR userMessage, DWORD exitCode, BOOL printErrorMessage)
  
• {
  
•   DWORD eMsgLen, errNum = GetLastError ();
  
•   LPTSTR lpvSysMsg;
  
•   _ftprintf (stderr, _T("%s\n"), userMessage);
  
•   if (printErrorMessage) {
  
•     eMsgLen = FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
  
•                              NULL, errNum, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
  
•                              (LPTSTR) &lpvSysMsg, 0, NULL);
  
•     if (eMsgLen > 0)
  
•     {
  
•       _ftprintf (stderr, _T("%s\n"), lpvSysMsg);
  
•     }
  
•     else
  
•     {
  
•       _ftprintf (stderr, _T("Last Error Number; %d.\n"), (int)errNum);
  
•     }
  
• 
  
•     if (lpvSysMsg != NULL) LocalFree (lpvSysMsg); /* Explained in Chapter 5. */
  
•   }
  
• 
  
•   if (exitCode > 0)
  
•     ExitProcess (exitCode);
  
• 
  
•   return;
  
• }
  

　　

　　

　　三 运行截图
程序开始运行


输入命令和网址
注意下面截图的网址是我和泠在很久以前建的网站地址，目前已经失效了，所以你应该用一个有效的网址替换！



　　程序得到的网页内容



退出程序



下面是该程序的linux版本,这段程序是《使用C4droid和botbrew在andriod手机上编程 》这篇文章的两个示例程序之一,不过《使用C4droid和botbrew在andriod手机上编程 》这篇文章现在已经放弃维护了！






/********************************************************************************
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
    get-www
                               main.c

    Develop Team : ls
    Main Programmer : He YiJun (storysnailgmail.com)
    License : GPLv3
    Last Update : 2013-03-03
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
*********************************************************************************/
#include
#include
#include
#include
#include
#include
#include

static int gw_connect(char *domain,int port)
{
  int sock_sd;
  int i;
  struct hostent *site_dns;
  struct sockaddr_in s_addr;
  site_dns = gethostbyname(domain);
  if(site_dns == NULL) {
    printf("gethostbyname error!\n");
    return -2;
  }
  printf("default ip:  %s\n",inet_ntoa(*((struct in_addr *)site_dns->h_addr)));
  for(i=0; ih_length/sizeof(int); i++) {
    printf("IP:%d:%s\n",i+1,inet_ntoa(*((struct in_addr *)site_dns->h_addr_list[i])));
  }
  sock_sd = socket(AF_INET,SOCK_STREAM,0);
  if(sock_sd h_addr_list[0],site_dns->h_length);
  s_addr.sin_family = AF_INET;
  s_addr.sin_port = htons(port);
  printf("s_addr ip:  %s",inet_ntoa(*((struct in_addr *)&s_addr.sin_addr)));
  return (connect(sock_sd,(struct sockaddr *)&s_addr,sizeof(struct sockaddr))