ares_init(3)

ARES_INIT(3)           C LIBRARY FUNCTIONS           ARES_INIT(3)

NAME

     ares_init - Initialize a resolver channel

SYNOPSIS

     #include <ares.h>

     int ares_init(ares_channel *channelptr)

DESCRIPTION

     The ares_init(3) function initializes a communications chan-
     nel  for  name service lookups.  If it returns successfully,
     ares_init(3) will set the variable pointed to by  channelptr
     to  a handle used to identify the name service channel.  The
     caller should invoke ares_destroy(3) on the handle when  the
     channel is no longer needed.

     The ares_init_options(3) function is provide to  offer  more
     init alternatives.

RETURN VALUES

     ares_init(3) can return any of the following values:

     ARES_SUCCESS  Initialization succeeded.

     ARES_EFILE    A configuration file could not be read.

     ARES_ENOMEM   The process's available memory was exhausted.

     ARES_ENOTINITIALIZED
                   c-ares library  initialization  not  yet  per-
                   formed.

NOTES

     When initializing from /etc/resolv.conf, ares_init(3)  reads
     the  domain  and search directives to allow lookups of short
     names relative to the  domains  specified.  The  domain  and
     search  directives  override  one  another. If more that one
     instance of either domain or search directives is specified,
     the  last  occurrence wins. For more information, please see
     the resolv.conf(5) manual page.

SEE ALSO

     ares_init_options(3),     ares_destroy(3),      ares_dup(3),
     ares_library_init(3), ares_set_servers(3)

AUTHOR

     Greg Hudson, MIT Information Systems
     Copyright 1998 by the Massachusetts Institute of Technology.
     Copyright (C) 2004-2010 by Daniel Stenberg.

                    Last change: 5 March 2010                   1