请问我如何在我的程序中(VC++ MFC中)知道 我当前的程序是在哪个用户模式下工作(在2000 或xp下) administrator 还是 user account

Question

请问我如何在我的程序中(VC++ MFC中)知道 我当前的程序是在哪个用户模式下工作(在2000 或xp下) 是在administrator account还是 user account??

Answer 1

GetUserNameNetUserGetGroups
NetUserGetLocalGroups或者下面函数判断是否属于管理员组
#define ACCESS_READ  1
#define ACCESS_WRITE 2BOOL CInstallClientApp::IsAdmin()
{
   HANDLE hToken;
   DWORD  dwStatus;
   DWORD  dwAccessMask;
   DWORD  dwAccessDesired;
   DWORD  dwACLSize;
   DWORD  dwStructureSize = sizeof(PRIVILEGE_SET);
   PACL   pACL            = NULL;
   PSID   psidAdmin       = NULL;
   BOOL   bReturn         = FALSE;   PRIVILEGE_SET   ps;
   GENERIC_MAPPING GenericMapping;   PSECURITY_DESCRIPTOR     psdAdmin           = NULL;
   SID_IDENTIFIER_AUTHORITY SystemSidAuthority = SECURITY_NT_AUTHORITY;
   
   __try {      // AccessCheck() requires an impersonation token.
      ImpersonateSelf(SecurityImpersonation);      if (!OpenThreadToken(GetCurrentThread(), TOKEN_QUERY, FALSE, 
            &hToken)) {   if (::GetLastError() != ERROR_NO_TOKEN)
            __leave;         // If the thread does not have an access token, we'll 
         // examine the access token associated with the process.
         if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, 
               &hToken))
            __leave;
      }      if (!AllocateAndInitializeSid(&SystemSidAuthority, 2, 
            SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS,
            0, 0, 0, 0, 0, 0, &psidAdmin))
         __leave;      psdAdmin = LocalAlloc(LPTR, SECURITY_DESCRIPTOR_MIN_LENGTH);
      if (psdAdmin == NULL)
         __leave;      if (!InitializeSecurityDescriptor(psdAdmin,
            SECURITY_DESCRIPTOR_REVISION))
         __leave;
  
      // Compute size needed for the ACL.
      dwACLSize = sizeof(ACL) + sizeof(ACCESS_ALLOWED_ACE) +
            GetLengthSid(psidAdmin) - sizeof(DWORD);      // Allocate memory for ACL.
      pACL = (PACL)LocalAlloc(LPTR, dwACLSize);
      if (pACL == NULL)
         __leave;      // Initialize the new ACL.
      if (!InitializeAcl(pACL, dwACLSize, ACL_REVISION2))
         __leave;      dwAccessMask= ACCESS_READ | ACCESS_WRITE;
      
      // Add the access-allowed ACE to the DACL.
      if (!AddAccessAllowedAce(pACL, ACL_REVISION2,
            dwAccessMask, psidAdmin))
         __leave;      // Set our DACL to the SD.
      if (!SetSecurityDescriptorDacl(psdAdmin, TRUE, pACL, FALSE))
         __leave;      // AccessCheck is sensitive about what is in the SD; set
      // the group and owner.
      SetSecurityDescriptorGroup(psdAdmin, psidAdmin, FALSE);
      SetSecurityDescriptorOwner(psdAdmin, psidAdmin, FALSE);      if (!IsValidSecurityDescriptor(psdAdmin))
         __leave;      dwAccessDesired = ACCESS_READ;      // 
      // Initialize GenericMapping structure even though we
      // won't be using generic rights.
      // 
      GenericMapping.GenericRead    = ACCESS_READ;
      GenericMapping.GenericWrite   = ACCESS_WRITE;
      GenericMapping.GenericExecute = 0;
      GenericMapping.GenericAll     = ACCESS_READ | ACCESS_WRITE;      if (!AccessCheck(psdAdmin, hToken, dwAccessDesired, 
            &GenericMapping, &ps, &dwStructureSize, &dwStatus, 
            &bReturn)) {
  printf("AccessCheck() failed with error %lu\n", ::GetLastError());
         __leave;
      }      RevertToSelf();
   
   } __finally {      // Cleanup 
      if (pACL) LocalFree(pACL);
      if (psdAdmin) LocalFree(psdAdmin);  
      if (psidAdmin) FreeSid(psidAdmin);
   }   return bReturn;
}

Answer 2

Thanks too much ,今天下班了，明天试试看。

Answer 3

Thanks too much again to  coldname(非常冷) ,
I have verified it and it's ok.先放二天讓別人看看﹐說不定對其他人也有用﹐
之后一定結貼給分﹗﹗﹗