isc_ipproto.3 revision 15a44745412679c30a6d022733925af70a38b715
Copyright (C) 2000 Internet Software Consortium.

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$Id: isc_ipproto.3,v 1.3 2000/07/27 09:43:07 tale Exp $

.Dd Jun 30, 2000 .Dt ISC_IPPROTO 3 .Os BIND9 9 .Sh NAME .Nm isc_net_probeipv4 , .Nm isc_net_probeipv6 .Nd protocol probe functions .Sh SYNOPSIS .Fd #include <config.h> .Fd #include <errno.h> .Fd #include <unistd.h> .Fd #include <isc/net.h> .Fd #include <isc/once.h> .Fd #include <isc/string.h> .Fd #include <isc/util.h> .Fo isc_net_probeipv4 .Fa void .Fc .Ft isc_result_t .Fo isc_net_probeipv4 .Fa void .Fc .Sh DESCRIPTION .Fn isc_net_probeipv4 and .Fn isc_net_probeipv6 check that the operating system support the IPv4 and IPv6 protocols respectively. .Sh RETURN VALUES .Fn isc_net_probeipv4 returns .Er ISC_R_SUCCESS if the IPv4 protocol is supported by the kernel and .Fn isc_net_probeipv6 returns .Er ISC_R_SUCCESS if the operating system supports IPv6. .Fn try_proto returns .Fn ISC_R_NOTFOUND if the chosen protocol family .Fa domain is not supported by the kernel. An error message is printed on .Dv stderr and .Er ISC_R_UNEXPECTED returned if another error occurred when the attempt was made to create the .Dv SOCK_STREAM socket. .Sh SEE ALSO .Xr socket 2 , .Xr ip 4 , .Xr ipv6 4 .