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utils (version 3.4.1)

nsl: Look up the IP Address by Hostname

Description

Interface to gethostbyname.

Usage

nsl(hostname)

Arguments

hostname

the name of the host.

Value

The IP address, as a character string, or NULL if the call fails.

Details

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.

Examples

Run this code
nsl("www.r-project.org")

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