1ARES_SET_SORTLIST(3)       Library Functions Manual       ARES_SET_SORTLIST(3)
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NAME

6       ares_set_sortlist - Initialize an ares_channel sortlist configuration
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SYNOPSIS

9       #include <ares.h>
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11       int ares_set_sortlist(ares_channel channel, const char *sortstr)
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DESCRIPTION

14       The  ares_set_sortlist(3) function initializes an address sortlist con‐
15       figuration  for  the  channel  data  identified  by  channel,  so  that
16       addresses returned by ares_gethostbyname(3) are sorted according to the
17       sortlist.  The provided sortstr string that  holds  a  space  separated
18       list  of IP-address-netmask pairs.  The netmask is optional but follows
19       the   address   after   a   slash    if    present.     For    example,
20       "130.155.160.0/255.255.240.0 130.155.0.0".
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22       This  function  replaces  any potentially previously configured address
23       sortlist with the ones given in the configuration string.
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RETURN VALUES

27       ares_set_sortlist(3) may return any of the following values:
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29       ARES_SUCCESS   The sortlist configuration was successfully initialized.
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31       ARES_ENOMEM    The process's available memory was exhausted.
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33       ARES_ENODATA   The channel data identified by channel was invalid.
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35       ARES_ENOTINITIALIZED
36                      c-ares library initialization not yet performed.
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SEE ALSO

39       ares_init_options(3), ares_dup(3)
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AVAILABILITY

42       ares_set_sortlist(3) was added in c-ares 1.11.0
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46                               23 November 2015           ARES_SET_SORTLIST(3)