77 lines
2.0 KiB
Plaintext
77 lines
2.0 KiB
Plaintext
.\" Copyright (C) 2000 Internet Software Consortium.
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
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.\" DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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.\" INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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.\" FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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.\" NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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.\" WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.\" $Id: isc_ipproto.3,v 1.3 2000/07/27 09:43:07 tale Exp $
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.\"
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.Dd Jun 30, 2000
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.Dt ISC_IPPROTO 3
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.Os BIND9 9
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.ds vT BIND9 Programmer's Manual
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.Sh NAME
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.Nm isc_net_probeipv4 ,
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.Nm isc_net_probeipv6
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.Nd protocol probe functions
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.Sh SYNOPSIS
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.Fd #include <config.h>
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.Fd #include <errno.h>
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.Fd #include <unistd.h>
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.Fd #include <isc/net.h>
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.Fd #include <isc/once.h>
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.Fd #include <isc/string.h>
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.Fd #include <isc/util.h>
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.Fo isc_net_probeipv4
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.Fa void
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.Fc
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.Ft isc_result_t
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.Fo isc_net_probeipv4
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.Fa void
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.Fc
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.Sh DESCRIPTION
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.Fn isc_net_probeipv4
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and
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.Fn isc_net_probeipv6
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check that the operating system support the IPv4 and IPv6 protocols
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respectively.
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.Sh RETURN VALUES
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.Fn isc_net_probeipv4
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returns
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.Er ISC_R_SUCCESS
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if the IPv4 protocol is supported by the kernel and
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.Fn isc_net_probeipv6
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returns
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.Er ISC_R_SUCCESS
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if the operating system supports IPv6.
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.Fn try_proto
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returns
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.Fn ISC_R_NOTFOUND
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if the chosen protocol family
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.Fa domain
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is not supported by the kernel.
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An error message is printed on
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.Dv stderr
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and
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.Er ISC_R_UNEXPECTED
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returned if another error occurred when the attempt was made to create
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the
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.Dv SOCK_STREAM
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socket.
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.Sh SEE ALSO
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.Xr socket 2 ,
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.Xr ip 4 ,
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.Xr ipv6 4 .
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