VC 如何获取本机 域名 或 工作组

1. 使用

int DimCount

void main（）

｛

LPNETRESOURCE lpNetRC_p=NULL；

DimCount=0

Enumerate(lpNetRC_p)

｝

2.回调函数

bool Enumerate(LPNETRESOURCE lpNetRC_p)

{

int UserCount=0

HANDLE hEnum = 0

DWORD dwScope = RESOURCE_GLOBALNET

DWORD dwType = RESOURCETYPE_ANY

DWORD dwResult = WNetOpenEnum(

dwScope, // scope of enumeration

dwType, // resource types to list

0, // enumerate all resources or RESOURCEUSAGE_CONTAINER

lpNetRC_p, // pointer to resource structure (NULL at first time)

&hEnum // handle to resource

)

if( dwResult != NO_ERROR )

{

int re=GetLastError()

return FALSE

}

DWORD dwBuffer = 16384 // 16K is reasonable size

DWORD dwEntries = 0xFFFFFFFF // enumerate all possible entries

LPNETRESOURCE lpBuffer

// first allocate buffer for NETRESOURCE structures ...

lpBuffer=(LPNETRESOURCE)GlobalAlloc(GPTR,dwBuffer )

dwResult = WNetEnumResource(hEnum,&dwEntries,lpBuffer,&dwBuffer)

if( dwResult == NO_ERROR )

{

for( register DWORD i = 0 i <dwEntriesi++)

{

// memcpy(&lpBuffer[i],&lpBuffer[i],sizeof(NETRESOURCE))

if(lpNetRC_p)

{

if(lpBuffer[i].dwDisplayType==RESOURCEDISPLAYTYPE_DOMAIN)

{

//这里就是得到获取本机 域名 或 工作组名并把它放到数组中

strcpy((char *)DimInfo[DimCount++].dimName,lpBuffer[i].lpRemoteName)

}

else

{ //这里就是得到的用户名并把它放到数组中

strcpy((char *)DimInfo[DimCount-1].User[UserCount++].UserName,lpBuffer[i].lpRemoteName+2)

if(UserCount>=20)UserCount=0

}

}

DWORD a=lpBuffer[i].dwDisplayType,c=lpBuffer[i].dwUsage

//RESOURCEUSAGE_CONTAINER == (lpBuffer[i].dwUsage & RESOURCEUSAGE_CONTAINER)

//上面的条件枚举所有的网络资源

if(a==6||a&RESOURCEDISPLAYTYPE_DOMAIN==RESOURCEDISPLAYTYPE_DOMAIN||c&RESOURCEUSAGE_CONTAINER==RESOURCEUSAGE_CONTAINER)

{

if(!Enumerate(&lpBuffer[i]))

{

return FALSE

}

//strcpy((char *)User[UserCount++].UserName,lpBuffer[i].lpRemoteName+2)

//if(UserCount>=20)UserCount=0

}

}

}

else if(dwResult != ERROR_NO_MORE_ITEMS)

{

return FALSE

}

if(lpBuffer) GlobalFree((HGLOBAL) lpBuffer)

WNetCloseEnum(hEnum)

return TRUE

}

今天阿驹电脑安全就给大家粗浅地说一下如何用VC++编程获取IP以及主机名。首先告诉大家，可以通过gethostname()和gethostbyname()函数来获取计算机的主机名和IP地址。两个函数的语法格式如下：gethostname()int gethostname(char FAR * name, int namelen)name：表示返回主机名。namelen：表示字符串name的大小。获取IP地址的代码char computername[128]CString strif(gethsotname(computername,128) == 0) //获得主机名{ struct hostent * phostint i=0, j, h_len=4phost = gethostbyname(computername)m_hostname = computernamefor( j=0, j0) str+=”.”m_addr.Format(“%u”, (unsigned int)((unsigned char*)->h_addr_list[i][j] ))str+=m_addr}}m_ipaddress = strUpdataData(FALSE)

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