1: The libbsdnet suite provides functions and documentation for communicating
2: with domain name servers, retrieving network host entries from
3: /etc/hosts or via DNS, converting CIDR network addresses, performing
4: Hesiod information lookups, retrieving network entries from
5: /etc/networks, implementing TSIG transaction/request security of
6: DNS messages, performing name-to-address and address-to-name
7: translations, and utilizing /etc/resolv.conf for resolver configuration.
9: Historically, much of the code is derived from the CSRG BSD distributions, such
10: as the old BSD gethostbyname() standard API. It was previously also maintained by ISC and distributed with BIND
11: and libbind. The handoff of the maintainership from ISC to NetBSD happened in July 2013.
13: Bug fixes and development discussion for this code can be discussed on the tech-userlevel mailing list.
15: Patches of NetBSD (June 2013 head) against libbind-6.0 are available at:
18: libbind provides portability headers: port_before.h and port_after.h
20: ### port
21: port directory provides portability headers for many operating sytems
22: make directory provides common Makefile rules and mkdep
24: ### bsd
25: bsd directory contains compatibility code, such as:
26: daemon(), \_\_ftruncate(), isc\_\_gettimeofday(), gettimeofday(),
27: mkstemp(), mktemp(), gettemp(), putenv(), \_\_readv(), setenv(),
28: unsetenv(), findenv(), \_\_setitimer(), strcasecmp(), strncasecmp(),
29: strdup(), isc_strerror(), strpbrk(), strsep(), strtoul(), \_\_utimes(),
30: \_\_writev(), \_\_writev()
32: ### dst
33: dst directory contains the Digital Signature Toolkit
34: code for the DST API and crypto API.
35: Parts of NetBSD's copy of libbind in src/lib/libc use
36: this, The dst code is not included in NetBSD's src. Probably the code in src/lib/libc using it actually is
37: not used.
39: ### inet
43: NetBSD adds \_inet_aton.c and \_inet_pton.c
45: libbind has (and NetBSD does not have) inet_data in inet.
47: ### irs
48: irs is the Information Retrieval System; it provides
49: getaddrinfo, gethostbyname, and related.
50: NetBSD doesn't include irs directory as is. But is comparable
51: to some of what we have in src/lib/libc/net/
53: NetBSD doesn't have
54: dns.c top-level accessor function for the dns,
55: dns_gr.c for hesiod,
57: and more.
59: ### isc
60: isc directory provides many portability functions
61: primarily used for ISC software.
63: NetBSD only ships with:
75: ### nameser
77: nameser provides the name resolver routines to parse DNS responses
79: libbind has (and NetBSD does not have) in nameser:
80: ns_date.c which provides ns_datetosecs(), isleap(), datepart()
81: ns_newmsg.c for building DNS message packets
82: ns_rdata.c for unpacking or comparing rdata
83: ns_sign.c and for ns_verify.c for tsig
85: ### resolv
87: NetBSD adds \_\_dn_comp.c, \_\_res_close.c, \_\_res_send.c,
88: h_errno.c, res_compat.c, res_state.c.
90: libbind has (and NetBSD does not have) in resolv:
91: (even though NetBSD manual documents them)
97: ### tests
98: tests directory contains dig tool from bind8
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