File:  [NetBSD Developer Wiki] / wikisrc / individual-software-releases / Attic / libbsdnet.mdwn
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Thu Jul 11 21:57:52 2013 UTC (8 years, 10 months ago) by wiki
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web commit by reed: details about differences

    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: Patches of NetBSD (June 2013 head) against libbind-6.0 are available at:
   14: <http://ftp.netbsd.org/pub/NetBSD/misc/reed/libbsdnet/>
   15: 
   16: libbind provides portability headers: port_before.h and  port_after.h
   17: 
   18: ### port
   19: port directory provides portability headers for many operating sytems
   20: make directory provides common Makefile rules and mkdep
   21: 
   22: ### bsd
   23: bsd directory contains compatibility code, such as:
   24: daemon(), __ftruncate(), isc__gettimeofday(), gettimeofday(),
   25: mkstemp(), mktemp(), gettemp(), putenv(), __readv(), setenv(),
   26: unsetenv(), findenv(), __setitimer(), strcasecmp(), strncasecmp(),
   27: strdup(), isc_strerror(), strpbrk(), strsep(), strtoul(), __utimes(),
   28: __writev(), __writev()
   29: 
   30: ### dst
   31: dst directory contains the Digital Signature Toolkit
   32: code for the DST API and crypto API.
   33: Parts of NetBSD's copy of libbind in src/lib/libc use
   34: this, The dst code is not included in NetBSD's src. Probably the code in src/lib/libc using it actually is
   35: not used.
   36: 
   37: ### inet
   38: 
   39: /usr/src/common/lib/libc/inet/inet_addr.c
   40: 
   41: NetBSD adds _inet_aton.c and _inet_pton.c
   42: 
   43: libbind has (and NetBSD does not have) inet_data in inet.
   44: 
   45: ### irs
   46: irs is the Information Retrieval System; it provides
   47: getaddrinfo, gethostbyname, and related.
   48: NetBSD doesn't include irs directory as is. But is comparable
   49: to some of what we have in /usr/src/lib/libc/net/
   50: 
   51: NetBSD doesn't have
   52: dns.c top-level accessor function for the dns,
   53: dns_gr.c for hesiod, 
   54: gai_strerror.c,
   55: and more.
   56: 
   57: ### isc
   58: isc directory provides many portability functions
   59: primarily used for ISC software.
   60: 
   61: NetBSD only ships with:
   62: src/lib/libc/include/isc/assertions.h
   63: src/lib/libc/include/isc/dst.h
   64: src/lib/libc/include/isc/list.h
   65: src/lib/libc/include/isc/memcluster.h
   66: src/lib/libc/include/isc/eventlib.h
   67: src/lib/libc/include/isc/heap.h
   68: src/lib/libc/isc/assertions.c
   69: src/lib/libc/isc/ev_streams.c
   70: src/lib/libc/isc/ev_timers.c
   71: src/lib/libc/isc/eventlib_p.h
   72: 
   73: ### nameser provides the name resolver routines to parse DNS responses
   74: 
   75: libbind has (and NetBSD does not have) in nameser:
   76: ns_date.c which provides ns_datetosecs(), isleap(), datepart()
   77: ns_newmsg.c  for building DNS message packets
   78: ns_rdata.c for unpacking or comparing rdata
   79: ns_sign.c and for ns_verify.c for tsig
   80: 
   81: ### resolv
   82: 
   83: NetBSD adds __dn_comp.c, __res_close.c, __res_send.c,
   84: h_errno.c, res_compat.c, res_state.c.
   85: 
   86: libbind has (and NetBSD does not have) in resolv:
   87: (even though NetBSD manual documents them)
   88: res_findzonecut.c
   89: res_mkupdate.c
   90: res_sendsigned.c
   91: res_update.c
   92: 
   93: ### tests
   94: tests directory contains dig tool from bind8

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