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ARES_SET_SORTLIST(3) Library Functions Manual ARES_SET_SORTLIST(3)

NAME

ares_set_sortlist - Initialize an ares_channel sortlist configuration

SYNOPSIS

#include <ares.h>
int ares_set_sortlist(ares_channel 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