mirror of
https://gitlab.isc.org/isc-projects/bind9
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135 lines
2.7 KiB
C
135 lines
2.7 KiB
C
/*
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* Copyright (C) 1999 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 DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#ifndef ISC_NET_H
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#define ISC_NET_H 1
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/*****
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***** Module Info
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*****/
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/*
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* Basic Networking Types
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*
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* This module is responsible for defining the following basic networking
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* types:
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*
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* struct in_addr
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* struct in6_addr
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* struct sockaddr
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* struct sockaddr_in
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* struct sockaddr_in6
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*
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* It ensures that the AF_ and PF_ macros are defined.
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*
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* It declares ntoh[sl]() and hton[sl]().
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*
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* It declares inet_aton(), inet_ntop(), and inet_pton() if they are
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* available on the system.
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*
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* It ensures that INADDR_ANY, IN6ADDR_ANY_INIT, in6addr_any, and
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* in6addr_loopback are available.
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*
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* MP:
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* No impact.
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*
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* Reliability:
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* No anticipated impact.
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*
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* Resources:
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* N/A.
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*
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* Security:
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* No anticipated impact.
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*
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* Standards:
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* BSD Socket API
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* RFC 2553
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*/
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/***
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*** Defines.
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***/
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/*
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* If sockaddrs on this system have an sa_len field, ISC_NET_HAVESALEN will
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* be defined.
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*/
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@ISC_NET_HAVESALEN@
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/*
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* If this system needs AF_INET6, ISC_NET_NEEDAFINET6 will be defined.
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*/
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@ISC_NET_NEEDAFINET6@
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/*
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* If this system needs the IPv6 structure definitions, ISC_NET_HAVEIPV6
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* will not be defined, and the structure definintions will be included.
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*/
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@ISC_NET_HAVEIPV6@
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/***
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*** Imports.
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***/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <isc/result.h>
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#ifdef ISC_NET_NEEDAFINET6
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#define AF_INET6 99
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#define PF_INET6 AF_INET6
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#endif
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#ifndef ISC_NET_HAVEIPV6
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#include <isc/ipv6.h>
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#endif
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/***
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*** Functions.
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***/
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isc_result_t
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isc_net_haveipv4(void);
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/*
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* Check if the system's kernel supports IPv4.
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*
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* Returns:
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*
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* ISC_R_SUCCESS IPv4 is supported.
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* ISC_R_NOTFOUND IPv4 is not supported.
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* ISC_R_UNEXPECTED
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*/
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isc_result_t
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isc_net_haveipv6(void);
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/*
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* Check if the system's kernel supports IPv6.
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*
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* Returns:
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*
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* ISC_R_SUCCESS IPv6 is supported.
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* ISC_R_NOTFOUND IPv6 is not supported.
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* ISC_R_UNEXPECTED
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*/
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#endif /* ISC_NET_H */
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