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Date: Mon, 15 Apr 1996 17:24:02 -0700 (PDT)
From: Bill Paul <wpaul>
Message-Id: <199604160024.RAA19897@freefall.freebsd.org>
To: CVS-committers, cvs-all, cvs-lib, cvs-include, cvs-usrsbin
Subject: cvs commit:  src/include pwd.h src/lib/libc/gen getpwent.c getnetgrent.c src/usr.sbin/pwd_mkdb pwd_mkdb.c
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wpaul       96/04/15 17:24:00

  Modified:    lib/libc/gen  getpwent.c getnetgrent.c
               include   pwd.h
  Log:
  NIS cleanups and fixes, the next generation.
  
  getnetgrent.c:
  
  - Catch one bogon that snuck by: in _listmatch(), check for '\0'
    rather than '\n'; strings returned from yp_match() are terminated
    with a nul, not a newline.
  
  getpwent.c:
  
  - Rip out all of the +inclusion/-exclusion stuff from before and
    replace it with something a little less grotty. The main problem
    with the old mechanism was that it wasted many cycles processing
    NIS entries even after it already knew they were to be exlcuded
    (or not included, depending on your pointof view). The highlights
    of these changes include:
  
    o Uses an in-memory hash database table to keep track of all the
      -@netgroup, -user, and -@group exclusions.
  
    o Tries harder to duplicate the behavior normally obtained when using
      NIS inclusions/exclusions on a flat /etc/passwd file (meaning things
      come out in much the same order).
  
    o Uses seperate methods for handling getpwent() and getpwnam()/getpwuid()
      operations instead of trying to do everything with one general
      function, which didn't work as well as I thought it would.
  
    o Uses both getnetgrent() and innetgr() to try to save time where
      possible.
  
    o Use only one special token in the local password database
      (_PW_KEYYPBYNUM) instead of seperate tokens to mark + and -
      entries (and stop using the counter tokens too). If this new
      token doesn't exist, the code will make due with the standard
      _PW_KEYBYNUM token in order to support older databases that
      won't have the new token in them.
  
    All this is an attempt to make this stuff work better in environments
    with large NIS passwd databases.
  
  Revision  Changes    Path
  1.32      +264 -264  src/lib/libc/gen/getpwent.c
  1.15      +1 -1      src/lib/libc/gen/getnetgrent.c
  1.5       +1 -4      src/include/pwd.h

  Modified:    usr.sbin/pwd_mkdb  pwd_mkdb.c
  Log:
  NIS cleanups and fixes, the next generation, continued.
  
  pwd_mkdb.c:
  
  - Don't save the PLUSCNT and MINUSCNT tokens: we don't need them anymore.
  
  - Count the + and - entires for NIS together instead of counting + and -
    entries seperately. Index all special NIS entries using new _PW_KEYYPBYNUM
    token.
  
  pwd.h:
  
  - Remove the PLUSBYNUM, MINUSBYNUM, PLUSCNT and MINUSCNT tokens and replace
    then with a single _PW_KEYYPBYNUM token.
  
  Revision  Changes    Path
  1.10      +11 -56    src/usr.sbin/pwd_mkdb/pwd_mkdb.c