NETCONFIG(5)              NetBSD File Formats Manual              NETCONFIG(5)


NAME
netconfig -- network configuration data base
SYNOPSIS
/etc/netconfig
DESCRIPTION
The netconfig file defines a list of ``transport names'', describing their semantics and protocol. In NetBSD, this file is only used by the RPC library code. Entries have the following format: network_id semantics flags family protoname device libraries Entries consist of the following fields: network_id The name of the transport described. semantics Describes the semantics of the transport. This can be one of: tpi_clts Connectionless transport. tpi_cots Connection-oriented transport tpi_cots_ord Connection-oriented, ordered transport. tpi_raw A raw connection. flags This field is either blank (specified by ``-''), or contains a ``v'', meaning visible to the getnetconfig(3) function. family The protocol family of the transport. This is currently one of: inet6 The IPv6 (PF_INET6) family of protocols. inet The IPv4 (PF_INET) family of protocols. loopback The PF_LOCAL protocol family. protoname The name of the protocol used for this transport. Can cur- rently be either udp, tcp, or empty. device This field is always empty in NetBSD. libraries This field is always empty in NetBSD. The order of entries in this file will determine which transport will be preferred by the RPC library code, given a match on a specified network type. For example, if a sample network config file would look like this: udp6 tpi_clts v inet6 udp - - tcp6 tpi_cots_ord v inet6 tcp - - udp tpi_clts v inet udp - - tcp tpi_cots_ord v inet tcp - - rawip tpi_raw - inet - - - local tpi_cots_ord - loopback - - - then using the network type udp in calls to the RPC library function (see rpc(3)) will make the code first try udp6, and then udp. getnetconfig(3) and associated functions will parse this file and return structures of the following format: struct netconfig { char *nc_netid; /* Network ID */ unsigned long nc_semantics; /* Semantics (see below) */ unsigned long nc_flag; /* Flags (see below) */ char *nc_protofmly; /* Protocol family */ char *nc_proto; /* Protocol name */ char *nc_device; /* Network device pathname (unused) */ unsigned long nc_nlookups; /* Number of lookup libs (unused) */ char **nc_lookups; /* Names of the libraries (unused) */ unsigned long nc_unused[9]; /* reserved */ };
FILES
/etc/netconfig
SEE ALSO
getnetconfig(3), getnetpath(3) NetBSD 7.0 November 17, 2000 NetBSD 7.0

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