procedure TForm1.ButtonIPClick(Sender: TObject);
type
TaPInAddr = Array[0..10] of PInAddr;
PaPInAddr = ^TaPInAddr;
var
phe: PHostEnt;
pptr: PaPInAddr;
Buffer: Array[0..63] of Char;
I: Integer;
GInitData: TWSAData;
IP: String;
begin
Screen.Cursor := crHourGlass;
try
WSAStartup($101, GInitData);
IP:='0.0.0.0';
GetHostName(Buffer, SizeOf(Buffer));
phe := GetHostByName(buffer);
if phe = nil then
begin
ShowMessage(IP);
Exit;
end;
pPtr := PaPInAddr(phe^.h_addr_list);
I := 0;
while pPtr^[I] <> nil do
begin
IP := inet_ntoa(pptr^[I]^);
Inc(I);
end;
WSACleanup;
ShowMessage(IP);
finally
Screen.Cursor := crDefault;
end;
end;
type
TaPInAddr = Array[0..10] of PInAddr;
PaPInAddr = ^TaPInAddr;
var
phe: PHostEnt;
pptr: PaPInAddr;
Buffer: Array[0..63] of Char;
I: Integer;
GInitData: TWSAData;
IP: String;
begin
Screen.Cursor := crHourGlass;
try
WSAStartup($101, GInitData);
IP:='0.0.0.0';
GetHostName(Buffer, SizeOf(Buffer));
phe := GetHostByName(buffer);
if phe = nil then
begin
ShowMessage(IP);
Exit;
end;
pPtr := PaPInAddr(phe^.h_addr_list);
I := 0;
while pPtr^[I] <> nil do
begin
IP := inet_ntoa(pptr^[I]^);
Inc(I);
end;
WSACleanup;
ShowMessage(IP);
finally
Screen.Cursor := crDefault;
end;
end;
的 IP),无法得到另一个 ip。最近再试了一下,可以得到两个 ip。
代码为:
char szHostName[128];
CString m_IpAdd1, m_IpAdd2;
if( gethostname(szHostName, 128) == 0 ) //得到本地机名
{
struct hostent * pHost;
pHost = gethostbyname(szHostName);
m_IpAdd1 = inet_ntoa(*((struct in_addr*)(pHost->h_addr_list[0])));
//第一个 ip,为 NIC IP
if (pHost->h_addr_list[1] != NULL) //没有拨号时当然没有PPP IP
m_IpAdd2 = inet_ntoa(*((struct in_addr*)(pHost->h_addr_list[1])));
//第二个 ip,为 PPP IP
}
lpraspppip.dwSize = 40
If RasGetProjectionInfo(mhConn, RASP_PppIp, lpraspppip, 40) = 0 Then
mRemoteIPAddress = TrimNull(StrConv(lpraspppip.szServerAddress, vbUnicode))
End If