vc++学习(六)——代码学习

这几天一直在看计算机方面的书，准备考试软件工程师，但是看了看书，太恐怖了，很多我都不会，但是里面提醒了一个内容就是必须会使用一种语言（c++，java等）来编写程序。刚好今天看了一个杂志，里面有一片文章很好，我就开始学习了，所以就写了仿效写了下面的内容。

该工具是用来判断你是否具有管理员权限的工具，代码我就贴在这里。

#include <stdio.h>
#include <windows.h>

BOOL IsAdmin(void)
{
HANDLE hAccessToken;
BYTE *InfoBuffer;
PTOKEN_GROUPS ptgGroups;

DWORD dwInfoBufferSize;
PSID psidAdministrators;

SID_IDENTIFIER_AUTHORITY sidNtAuthority=SECURITY_NT_AUTHORITY;
UINT i;

BOOL bRet=FALSE;

if(!OpenProcessToken(GetCurrentProcess(),TOKEN_QUERY,&hAccessToken))
InfoBuffer=new BYTE[1024];
if(!InfoBuffer)
goto cleanup;

bRet=GetTokenInformation(hAccessToken,TokenGroups,InfoBuffer,1024,&dwInfoBufferSize);

CloseHandle(hAccessToken);
if(!bRet)
goto cleanup;
if(!AllocateAndInitializeSid(&sidNtAuthority,
2,
SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS,
0,0,0,0,0,0,
&psidAdministrators));
goto cleanup;

bRet=FALSE;

ptgGroups=(PTOKEN_GROUPS)InfoBuffer;

for(i=0;i < ptgGroups-> GroupCount;i++)
{
if(EqualSid(psidAdministrators,ptgGroups->Groups[i].Sid))
{
bRet=TRUE;
break;
}

}

FreeSid(psidAdministrators);

cleanup:
if(InfoBuffer)
delete InfoBuffer;

return bRet;
}

main()
{
printf("+------------------------------------+/n");
printf("| ChkAdinistrator v0.1 |/n");
printf("| Write By AloneSword |/n");
printf("| 2005-9-14 |/n");
printf("| thx to sinister |/n");
printf("| http://blog.csdn.net/alonesword/ |/n");
printf("+-----------------------------------+/n");
if(IsAdmin) printf("You have got the Administrators rights./n");
else printf("Sorry,administrator is not you./n");
}