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73ef4ff3   Hu Chunming   提交三方库
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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 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
  .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.
  .TP 15
  .B ARES_ENOTIMP
  Changing name servers configuration while queries are outstanding is not implemented.
  .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