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Annotation of wikisrc/individual-software-releases/netresolv.mdwn, revision 1.1

1.1     ! reed        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.
        !             8: 
        !             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.
        !            12: 
        !            13: Bug fixes and development discussion for this code can be discussed on the tech-userlevel mailing list.
        !            14: 
        !            15: Patches of NetBSD (June 2013 head) against libbind-6.0 are available at:
        !            16: <http://ftp.netbsd.org/pub/NetBSD/misc/reed/libbsdnet/>
        !            17: 
        !            18: libbind provides portability headers: port_before.h and  port_after.h
        !            19: 
        !            20: ### port
        !            21: port directory provides portability headers for many operating sytems
        !            22: make directory provides common Makefile rules and mkdep
        !            23: 
        !            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()
        !            31: 
        !            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.
        !            37: 
        !            38: ### inet
        !            39: 
        !            40: src/common/lib/libc/inet/inet_addr.c
        !            41: 
        !            42: NetBSD adds \_inet_aton.c and \_inet_pton.c
        !            43: 
        !            44: libbind has (and NetBSD does not have) inet_data in inet.
        !            45: 
        !            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/
        !            51: 
        !            52: NetBSD doesn't have
        !            53: dns.c top-level accessor function for the dns,
        !            54: dns_gr.c for hesiod, 
        !            55: gai_strerror.c,
        !            56: and more.
        !            57: 
        !            58: ### isc
        !            59: isc directory provides many portability functions
        !            60: primarily used for ISC software.
        !            61: 
        !            62: NetBSD only ships with:
        !            63: src/lib/libc/include/isc/assertions.h
        !            64: src/lib/libc/include/isc/dst.h
        !            65: src/lib/libc/include/isc/list.h
        !            66: src/lib/libc/include/isc/memcluster.h
        !            67: src/lib/libc/include/isc/eventlib.h
        !            68: src/lib/libc/include/isc/heap.h
        !            69: src/lib/libc/isc/assertions.c
        !            70: src/lib/libc/isc/ev_streams.c
        !            71: src/lib/libc/isc/ev_timers.c
        !            72: src/lib/libc/isc/eventlib_p.h
        !            73: 
        !            74: ### nameser
        !            75: 
        !            76: nameser provides the name resolver routines to parse DNS responses
        !            77: 
        !            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.
        !            83: 
        !            84: ### resolv
        !            85: 
        !            86: NetBSD adds \_\_dn_comp.c, \_\_res_close.c, \_\_res_send.c,
        !            87: h_errno.c, res_compat.c, and res_state.c.
        !            88: 
        !            89: libbind has (and NetBSD does not have) in resolv
        !            90: (even though NetBSD manual documents them):
        !            91: res_findzonecut.c,
        !            92: res_mkupdate.c,
        !            93: res_sendsigned.c,
        !            94: and
        !            95: res_update.c.
        !            96: 
        !            97: ### tests
        !            98: tests directory contains dig tool from bind8