nsl | R Documentation |
Interface to the system gethostbyname
, currently available
only on unix-alikes, i.e., not on Windows.
nsl(hostname)
hostname |
the name of the host. |
This was included as a test of internet connectivity, to fail if
the node running R is not connected. It will also return NULL
if BSD networking is not supported, including the header file
‘arpa/inet.h’.
This function is not available on Windows.
The IP address, as a character string, or NULL
if the call fails.
if(.Platform$OS.type == "unix") # includes Mac print( nsl("www.r-project.org") )
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