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       ares_gethostbyname_file - Lookup a name in the system’s hosts file


       #include <ares.h>

       int ares_gethostbyname_file(ares_channel channel, const char *name,
            int family, struct hostent **host)


       The  ares_gethostbyname_file  function  performs  a host lookup by name
       against  the  system’s  hosts  file  (or  equivalent   local   hostname
       database).   The  channel  parameter  is  required, but no asynchronous
       queries are performed.  Instead,  the  lookup  is  done  via  the  same
       mechanism used to perform ’f’ lookups (see the lookups options field in
       ares_init_options(3)).  The parameter name gives the hostname as a NUL-
       terminated  C  string, and family gives the desired type of address for
       the resulting host entry.

       The return value indicates whether the query succeeded and, if not, how
       it failed.  It may have any of the following values:

       ARES_SUCCESS       The  host lookup completed successfully and host now
                          points  to  the  result  (and  must  be  freed  with

       ARES_ENOTFOUND     The hostname name was not found.

       ARES_EFILE         There  was  a  file  I/O  error while performing the

       ARES_ENOMEM        Memory was exhausted.

       On successful completion of the query, the pointer pointed to  by  host
       points  to a struct hostent containing the address of the host returned
       by the lookup.  The user must free the memory pointed to by  host  when
       finished  with  it  by calling ares_free_hostent(3).  If the lookup did
       not complete successfully, host will be NULL.


       Added in c-ares 1.5.4


       ares_gethostbyname(3), ares_free_hostent(3), ares_init_options(3)


       Brad Spencer
       Copyright 1998 by the Massachusetts Institute of Technology.

                                 25 July 1998            ARES_GETHOSTBYNAME(3)