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PR_GetAddrInfoByName
====================
Looks up a host by name. Equivalent to ``getaddrinfo(host, NULL, ...)``
of RFC 3493.
Syntax
------
.. code::
#include <prnetdb.h>
PRAddrInfo *PR_GetAddrInfoByName(
const char *hostname,
PRUint16 af,
PRIntn flags);
Parameters
~~~~~~~~~~
The function has the following parameters:
``hostname``
The character string defining the host name of interest.
``af``
The address family. May be ``PR_AF_UNSPEC`` or ``PR_AF_INET``.
``flags``
May be either ``PR_AI_ADDRCONFIG`` or
``PR_AI_ADDRCONFIG | PR_AI_NOCANONNAME``. Include
``PR_AI_NOCANONNAME`` to suppress the determination of the canonical
name corresponding to ``hostname``
Returns
~~~~~~~
The function returns one of the following values:
- If successful, a pointer to the opaque ``PRAddrInfo`` structure
containing the results of the host lookup. Use
:ref:`PR_EnumerateAddrInfo` to inspect the :ref:`PRNetAddr` values stored
in this structure. When no longer needed, this pointer must be
destroyed with a call to :ref:`PR_FreeAddrInfo`.
- If unsuccessful, ``NULL``. You can retrieve the reason for the
failure by calling :ref:`PR_GetError`.
