Added warning that gethostname() doesn't always return fqdn, and show

how to find it using gethostbyaddr().
This commit is contained in:
Guido van Rossum 1997-01-11 17:04:56 +00:00
parent 5709dcfaec
commit fe27a50847
2 changed files with 10 additions and 0 deletions

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@ -96,6 +96,9 @@ Return a string containing the hostname of the machine where
the Python interpreter is currently executing. If you want to know the
current machine's IP address, use
\code{socket.gethostbyname(socket.gethostname())}.
Note: \code{gethostname()} doesn't always return the fully qualified
domain name; use \code{socket.gethostbyaddr(socket.gethostname())}
(see below).
\end{funcdesc}
\begin{funcdesc}{gethostbyaddr}{ip_address}
@ -105,6 +108,8 @@ Return a triple \code{(hostname, aliaslist, ipaddrlist)} where
alternative host names for the same address, and \code{ipaddrlist} is
a list of IP addresses for the same interface on the same
host (most likely containing only a single address).
To find the fully qualified domain name, check \var{hostname} and the
items of \var{aliaslist} for an entry containing at least one period.
\end{funcdesc}
\begin{funcdesc}{getprotobyname}{protocolname}

View File

@ -96,6 +96,9 @@ Return a string containing the hostname of the machine where
the Python interpreter is currently executing. If you want to know the
current machine's IP address, use
\code{socket.gethostbyname(socket.gethostname())}.
Note: \code{gethostname()} doesn't always return the fully qualified
domain name; use \code{socket.gethostbyaddr(socket.gethostname())}
(see below).
\end{funcdesc}
\begin{funcdesc}{gethostbyaddr}{ip_address}
@ -105,6 +108,8 @@ Return a triple \code{(hostname, aliaslist, ipaddrlist)} where
alternative host names for the same address, and \code{ipaddrlist} is
a list of IP addresses for the same interface on the same
host (most likely containing only a single address).
To find the fully qualified domain name, check \var{hostname} and the
items of \var{aliaslist} for an entry containing at least one period.
\end{funcdesc}
\begin{funcdesc}{getprotobyname}{protocolname}