diff options
Diffstat (limited to 'Doc/lib/libsocket.tex')
| -rw-r--r-- | Doc/lib/libsocket.tex | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/Doc/lib/libsocket.tex b/Doc/lib/libsocket.tex index 6f7ab1e..0b9b789 100644 --- a/Doc/lib/libsocket.tex +++ b/Doc/lib/libsocket.tex @@ -101,6 +101,16 @@ those symbols that are defined in the \UNIX{} header files are defined; for a few symbols, default values are provided. \end{datadesc} +\begin{funcdesc}{getfqdn}{\optional{name}} +Return a fully qualified domain name for \var{name}. +If \var{name} is omitted or empty, it is interpreted as the local +host. To find the fully qualified name, the hostname returned by +\function{gethostbyaddr()} is checked, then aliases for the host, if +available. The first name which includes a period is selected. In +case no fully qualified domain name is available, the hostname is +returned. +\end{funcdesc} + \begin{funcdesc}{gethostbyname}{hostname} Translate a host name to IP address format. The IP address is returned as a string, e.g., \code{'100.50.200.5'}. If the host name @@ -134,10 +144,8 @@ responding to the given \var{ip_address}, \var{aliaslist} is a (possibly empty) list of alternative host names for the same address, and \var{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. -An implementation of this algorithm can be found in the module -\module{smtplib} in form of the \function{make_fqdn()} function. +To find the fully qualified domain name, use the function +\function{getfqdn()}. \end{funcdesc} \begin{funcdesc}{getprotobyname}{protocolname} |