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.\"
.\" Copyright 2010 by Ben Greear <greearb@candelatech.com>
.\"
.\" Permission to use, copy, modify, and distribute this
.\" software and its documentation for any purpose and without
.\" fee is hereby granted, provided that the above copyright
.\" notice appear in all copies and that both that copyright
.\" notice and this permission notice appear in supporting
.\" documentation, and that the name of M.I.T. not be used in
.\" advertising or publicity pertaining to distribution of the
.\" software without specific, written prior permission.
.\" M.I.T. makes no representations about the suitability of
.\" this software for any purpose.  It is provided "as is"
.\" without express or implied warranty.
.\"
.TH ARES_SET_SERVERS_CSV 3 "30 June 2010"
.SH NAME
ares_set_servers_csv, ares_set_servers_ports_csv \- Set list of DNS servers to be used.
.SH SYNOPSIS
.nf
.B #include <ares.h>
.PP
.B void ares_set_servers_csv(ares_channel \fIchannel\fP, const char* \fIservers\fP)
.fi
.SH DESCRIPTION
The \fBares_set_servers_csv\fP function sets the list of DNS servers
that ARES will query.  The format of the servers option is:
.B int ares_set_servers_csv(ares_channel \fIchannel\fP, const char* \fIservers\fP)
.B int ares_set_servers_ports_csv(ares_channel \fIchannel\fP, const char* \fIservers\fP)
.fi
.SH DESCRIPTION
The \fBares_set_servers_csv\fP and \fBares_set_servers_ports_csv\fPfunctions set
the list of DNS servers that ARES will query.  The format of the servers option is:

host[:port][,host[:port]]...

For example:

192.168.1.100,192.168.1.101,3.4.5.6

.SH SEE ALSO
.BR ares_set_servers (3)
.SH NOTES
The port option is currently ignored by c-ares internals
and the standard port is always used.

This function was added in c-ares 1.7.2
.PP
The \fBares_set_servers_csv\fP function will ignore any port values specified in
the input string, whereare the \fBares_set_servers_ports_csv\fP function will
apply any specified port values as the UDP and TCP port to be used for that
particular nameserver.

.SH RETURN VALUES
.B ares_set_servers_csv(3)
This function may return any of the following values:
.TP 15
.B ARES_SUCCESS
The name servers configuration was successfully initialized.
.TP 15
.B ARES_ENOMEM
The process's available memory was exhausted.
.TP 15
.B ARES_ENODATA
The channel data identified by
.IR channel
was invalid.
.TP 15
.B ARES_ENOTINITIALIZED
c-ares library initialization not yet performed.
.SH SEE ALSO
.BR ares_set_servers (3)
.SH AVAILABILITY
\fBares_set_servers_csv\fP was added in c-ares 1.7.2;
\fBares_set_servers_ports_csv\fP was added in c-ares 1.11.0.
.SH AUTHOR
Ben Greear