WNET协议应用

确定一共享的位置

                                
                                  第五节:确定一共享的位置

下面的例子演示了怎样使用WNetGetUniversalName函数来确定在重定向设备的一共享文件的位置
可用C编译器对其进行编译,但要加上SHELL32.LIB,MPR.LIB,NETAPI32库

//用GetUni H:

#define  STRICT
#include
#include

#define BUFFSIZE = 1000

void main( int argc, char *argv[] )
{
  DWORD cbBuff = 1000  //缓冲大小
  TCHAR szBuff[1000];    //接收消息的缓冲
  REMOTE_NAME_INFO  * prni = (REMOTE_NAME_INFO *)   &szBuff;
  //指向缓冲的头部
  UNIVERSAL_NAME_INFO * puni = (UNIVERSAL_NAME_INFO *) &szBuff;
  DWORD res;

  if((argc < 2) | (lstrcmp(argv[1], "/?") == 0))
  {
    printf("语法:  GetUni  设备路经和文件名 "
         "例子: GetUni U:\WINNT\SYSTEM32\WSOCK32.DLL ");
    return;
  }
 
  //调用WNetGetUniversalName 使用 UNIVERSAL_NAME_INFO_LEVEL 指令
 
  printf("调用 WNetGetUniversalName 使用 UNIVERSAL_NAME_INFO_LEVEL. ");
  if((res = WNetGetUniversalName((LPTSTR)argv[1],
   UNIVERSAL_NAME_INFO_LEVEL,
   (LPVOID) &szBuff, //接收此机构的缓冲
   &cbBuff)) != NO_ERROR)     //of memory
    printf("Error: %ld ", res);     //出错
else
    printf("Universal Name: %s ",  //输出结果
    puni->lpUniversalName);  //指针指向 REMOTE_NAME_INFO_LEVEL 结构

 //也可用REMOTE_NAME_INFO_LEVEL指令
  printf("调用WNetGetUniversalName使用REMOTE_NAME_INFO_LEVEL. ");
  if((res = WNetGetUniversalName((LPTSTR)argv[1],
     REMOTE_NAME_INFO_LEVEL,    
        (LPVOID) &szBuff,    //接收此机构的缓冲
       &cbBuff)) != NO_ERROR)    

    printf("Error: %ld ", res);    //出错输出错误
  else
    printf("Universal Name: %s "    //输出结果
         "Connection Name: %s "    //指针指向  REMOTE_NAME_INFO_LEVEL结构
       "Remaining Path: %s ",
          prni->lpUniversalName,
          prni->lpConnectionName,
          prni->lpRemainingPath);
  return;
}

       ;====汇编语言描述(BY 谢小荣)=====

include masm32includeMPR.inc
include masm32include etapi32.inc
includelib masm32libMPR.lib
includelib masm32lib etapi32.lib

AsmWNetGetUniversalName PROTO :DWORD,:DWORD,:DWORD,:DWORD
.data
   szBuff db 1000 dup(0)
   msg_err1 db "有错!",0

.code
AsmWNetGetUniversalName proc hwnd:DWORD,hdc:DWORD,hdc2:DWORD,lpPath:DWORD
   invoke WNetGetUniversalName,lpPath,UNIVERSAL_NAME_INFO_LEVEL,addr szBuff,1000
   .IF EAX==NO_ERROR
       invoke TextOut,hdc, 10, 10, addr szBuff, 80
   .ESLE
       invoke TextOut,hdc, 10, 10, addr msg_err1, 10
   .ENDIF
   invoke WNetGetUniversalName,lpPath,REMOTE_NAME_INFO_LEVEL,addr szBuff,1000
   .IF EAX==NO_ERROR
       push esi
       mov esi,offset szBuff
       assume [esi]:REMOTE_NAME_INFO
       invoke TextOut,hdc2, 10, 10, addr [esi].lpUniversalName, 1000
       invoke TextOut,hdc2,10,10,addr [esi].lpConnectionName,1000
       assume [esi]:nothing
   .ELSE   
       invoke TextOut,hdc2, 10, 10, addr msg_err1, 10
   .ENDIF
   ret

AsmWNetGetUniversalName endp