PB9 获取ip与计算机名

//建立全局的结构s_wsadata 
//结构如下： 
//version                                   unsignedinteger 
//highversion                           unsignedinteger 
//description[257]                 character 
//systemstatus[129]               character 
//maxsockets                             unsignedinteger 
//maxupddg                                 unsignedinteger 
//vendorinfo                             string 

//   声明   extern   function

type prototypes
function int WSAStartup( uint UIVersionRequested, ref s_WSAData lpWSAData ) library "wsock32.dll "
function int WSACleanup() library "wsock32.dll "
function int WSAGetLastError ( ) library "wsock32.dll "
function int gethostname ( ref string name, int namelen ) library "wsock32.dll "
function string GetHost(string lpszhost, ref blob lpszaddress ) library "pbws32.dll "
Function Long GetMACAddress(Long lana,Ref Long addr[6]) Library "GetMAC.dll"
Function Long GetLanaID(Ref Long lana[254]) Library "GetMAC.dll"
end prototypes

函数gf_getip (integer name_ip) 

函数代码如下：

s_wsadata l_WSAData
string ls_HostName = space(128)
string ls_IpAddress
int li_version = 257
blob{4} lb_hostaddress
/* Then, create a session, based on the winsock version. This version number consists of two part, a major and minor release number, both represented in a byte. So, version 1.1 gives us an integer version of 257 ( 256 + 1 ) */
IF wsastartup ( li_version, l_WSAData ) = 0 THEN
/* the wsadata structure contains several information. The description element tells us the winsock version */
//messagebox("Winsock Version", l_WSAData.description )
/* Now, let's find out what the hostname is of the current machine we're working on */
IF gethostname ( ls_HostName, len(ls_HostName) ) < 0 THEN
messagebox("GetHostName",WSAGetLastError())
ELSE
/* With the hostname, call the DLL function and map the IP-address pointers to a PB blob variable, with a length of 4 bytes. This is done because the internal structure contains 4 pointers, each pointer point to one of the parts of the IP-address. An IP-address namely, consists of 4 bytes */
// Messagebox("Hostname", ls_HostName)
GetHost(ls_HostName, lb_HostAddress)
/* Convert the pointers to scalars, and concatenate them to one string, the IP-address */
ls_IpAddress = string(asc(string(blobmid(lb_HostAddress,1,1))),"000") + "."
ls_IpAddress += string(asc(string(blobmid(lb_HostAddress,2,1))),"000") + "."
ls_IpAddress += string(asc(string(blobmid(lb_HostAddress,3,1))),"000") + "."
ls_IpAddress += string(asc(string(blobmid(lb_HostAddress,4,1))),"000")
//Messagebox("Ip Address", ls_IpAddress )
END IF
/* We're finished, clean up the mess we made */
WSACleanup()
ELSE
messagebox("GetHostName",WSAGetLastError())
END IF

if name_ip=1 then
return ls_hostname
else
return ls_ipaddress
end if