external/ibm-public/postfix/dist/src/global/mkmap_cdb.c

   1 /*      $NetBSD$        */
   2
   3 /*++
   4 /* NAME
   5 /*      mkmap_cdb 3
   6 /* SUMMARY
   7 /*      create or open database, CDB style
   8 /* SYNOPSIS
   9 /*      #include <mkmap.h>
  10 /*
  11 /*      MKMAP   *mkmap_cdb_open(path)
  12 /*      const char *path;
  13 /*
  14 /* DESCRIPTION
  15 /*      This module implements support for creating DJB's CDB "constant
  16 /*      databases".
  17 /*
  18 /*      mkmap_cdb_open() take a file name, append the ".cdb.tmp" suffix,
  19 /*      create the named DB database.  On close, this file renamed to
  20 /*      file name with ".cdb" suffix appended (without ".tmp" part).
  21 /*      This routine is a CDB-specific helper for the more
  22 /*      general mkmap_open() interface.
  23 /*
  24 /*      All errors are fatal.
  25 /* SEE ALSO
  26 /*      dict_cdb(3), CDB dictionary interface.
  27 /* LICENSE
  28 /* .ad
  29 /* .fi
  30 /*      The Secure Mailer license must be distributed with this software.
  31 /* AUTHOR(S)
  32 /*      Written by Michael Tokarev <mjt@tls.msk.ru> based on mkmap_db by
  33 /*      Wietse Venema
  34 /*      IBM T.J. Watson Research
  35 /*      P.O. Box 704
  36 /*      Yorktown Heights, NY 10598, USA
  37 /*--*/
  38
  39 /* System library. */
  40
  41 #include <sys_defs.h>
  42
  43 #ifdef HAS_CDB
  44
  45 /* Utility library. */
  46
  47 #include <mymalloc.h>
  48 #include <dict.h>
  49
  50 /* Application-specific. */
  51
  52 #include "mkmap.h"
  53 #include <dict_cdb.h>
  54
  55 /* This is a dummy module, since CDB has all the functionality
  56  * built-in, as cdb creation requires one global lock anyway. */
  57
  58 MKMAP *mkmap_cdb_open(const char *unused_path)
  59 {
  60     MKMAP  *mkmap = (MKMAP *) mymalloc(sizeof(*mkmap));
  61     mkmap->open = dict_cdb_open;
  62     mkmap->after_open = 0;
  63     mkmap->after_close = 0;
  64     return (mkmap);
  65 }
  66
  67 #endif /* HAS_CDB */