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Internet connectivity
 
File transfer (FTP)
Hypertext transfer (HTTP)
IMAP library
MIME and RFC822
POP3 email
Simple Mail Transfer Protocol (SMTP)
TCP/IP connections
IsValidIPAddress
  Is a string a valid IP address?
 
Library wh::internet/tcpip.whlib
 
Syntax PUBLIC BOOLEAN FUNCTION IsValidIPAddress (STRING address)
 
Description This function tests whether an IP address is a valid IPV4 IP address, it verifies
that the name contains 3 dots, and that all pieces between the dots are numbers
in range 0 to 255. This function does not yet recognize IPV6 addresses.
 
Parameters
address IP address to check
 
Returns True if the string is a valid IP address
 
 
In library 'tcpip'
AcceptOnTCPSocket
BindSocket
CloseSocket
ConnectSocket
CreateTCPSocket
CreateUDPSocket
GetHostNameFromURL
GetLastSocketError
GetLocalSocketIP
GetLocalSocketPort
GetPathFromURL
GetPortFromURL
GetRemoteSocketIP
GetRemoteSocketPort
GetSocketErrorText
GetSystemHostName
IsValidHostName
IsValidIPAddress
ListenOnTCPSocket
PrettyIPMask
ReadFromSocket
ResolveHostname
ResolveIPAddress
SetSecureConnection
SetSocketTimeout
StandardizeIPMask
UDPReceive
UDPSend
 
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