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: The dst code is not included in NetBSD's src. Probably the code in src/lib/libc using it actually is
36: not used.
38: ### inet
42: NetBSD adds \_inet_aton.c and \_inet_pton.c
44: libbind has (and NetBSD does not have) inet_data in inet.
46: ### irs
47: irs is the Information Retrieval System; it provides
48: getaddrinfo, gethostbyname, and related.
49: NetBSD doesn't include irs directory as is. But is comparable
50: to some of what we have in src/lib/libc/net/
52: NetBSD doesn't have
53: dns.c top-level accessor function for the dns,
54: dns_gr.c for hesiod,
56: and more.
58: ### isc
59: isc directory provides many portability functions
60: primarily used for ISC software.
62: NetBSD only ships with:
74: ### nameser
76: nameser provides the name resolver routines to parse DNS responses
78: libbind has (and NetBSD does not have) in nameser:
79: ns_date.c which provides ns_datetosecs(), isleap(), and datepart();
80: ns_newmsg.c for building DNS message packets;
81: ns_rdata.c for unpacking or comparing rdata; and
82: ns_sign.c and for ns_verify.c for tsig.
84: ### resolv
86: NetBSD adds \_\_dn_comp.c, \_\_res_close.c, \_\_res_send.c,
87: h_errno.c, res_compat.c, and res_state.c.
89: libbind has (and NetBSD does not have) in resolv
90: (even though NetBSD manual documents them):
97: ### tests
98: tests directory contains dig tool from bind8
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