NAME

       ares_set_sortlist - Initialize an ares_channel_t *sortlist configuration

SYNOPSIS

       #include <ares.h>

       int ares_set_sortlist(ares_channel_t *channel, const char *sortstr)

DESCRIPTION

       The  ares_set_sortlist(3)  function  initializes an address sortlist configuration for the
       channel data identified by channel, so that addresses  returned  by  ares_gethostbyname(3)
       are  sorted  according  to  the  sortlist.  The provided sortstr string that holds a space
       separated list of IP-address-netmask pairs.  The  netmask  is  optional  but  follows  the
       address after a slash if present.  For example, "130.155.160.0/255.255.240.0 130.155.0.0".

       This  function  replaces  any  potentially previously configured address sortlist with the
       ones given in the configuration string.

RETURN VALUES

       ares_set_sortlist(3) may return any of the following values:

       ARES_SUCCESS   The sortlist configuration was successfully initialized.

       ARES_ENOMEM    The process's available memory was exhausted.

       ARES_ENODATA   The channel data identified by channel was invalid.

       ARES_ENOTINITIALIZED
                      c-ares library initialization not yet performed.

SEE ALSO

       ares_init_options(3), ares_dup(3)

AVAILABILITY

       ares_set_sortlist(3) was added in c-ares 1.11.0

                                         23 November 2015                    ARES_SET_SORTLIST(3)