mdw@git.distorted.org.uk Git - become/blob - src/netg.h

   1 /* -*-c-*-
   2  *
   3  * $Id: netg.h,v 1.5 2004/04/08 01:36:20 mdw Exp $
   4  *
   5  * A local database of netgroups
   6  *
   7  * (c) 1998 EBI
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of `become'
  13  *
  14  * `Become' is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * `Become' is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with `become'; if not, write to the Free Software Foundation,
  26  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 #ifndef NETG_H
  30 #define NETG_H
  31
  32 #ifdef __cplusplus
  33   extern "C" {
  34 #endif
  35
  36 /*----- Required headers --------------------------------------------------*/
  37
  38 #include <mLib/sym.h>
  39
  40 /*----- Type definitions --------------------------------------------------*/
  41
  42 typedef sym_iter netg_iter;
  43 typedef struct netg__sym netg;
  44
  45 /*----- Functions provided ------------------------------------------------*/
  46
  47 /* --- @netg_iterate@, @netg_iterate_r@ --- *
  48  *
  49  * Arguments:   @netg_iter *i@ = pointer to a netgroup iterator object
  50  *
  51  * Returns:     ---
  52  *
  53  * Use:         Starts iterating over the netgroups.
  54  */
  55
  56 extern void netg_iterate(void);
  57 extern void netg_iterate_r(netg_iter */*i*/);
  58
  59 /* --- @netg_next@, @netg_next_r@ --- *
  60  *
  61  * Arguments:   @netg_iter *i@ = pointer to a netgroup iterator object
  62  *
  63  * Returns:     An opaque pointer to the next item, or null.
  64  *
  65  * Use:         Returns the next netgroup.
  66  */
  67
  68 extern netg *netg_next(void);
  69 extern netg *netg_next_r(netg_iter */*i*/);
  70
  71 /* --- @netg_name@ --- *
  72  *
  73  * Arguments:   @netg *n@ = netgroup handle returned by @netg_next@.
  74  *
  75  * Returns:     A pointer to the name; you may not modify this string.
  76  *
  77  * Use:         Returns the name of a netgroup.
  78  */
  79
  80 extern const char *netg_name(netg */*n*/);
  81
  82 /* --- @netg_scan@ --- *
  83  *
  84  * Arguments:   @netg *n@ = a netgroup handle returned by @netg_next@
  85  *              @int (*proc)(netg *n, const char *host, const char *user,@
  86  *                      @const char *domain, void *ctx)@ = function to call
  87  *                              for each member.
  88  *              @void *ctx@ = context pointer to pass to @proc@.
  89  *
  90  * Returns:     Zero if all went well, or the nonzero return value from
  91  *              @proc@.
  92  *
  93  * Use:         Passes all the members of the netgroup to a given function.
  94  *              The function is given the names, directly from the NIS
  95  *              netgroup map, except that any empty entries are passed as
  96  *              null pointers rather than empty strings.  You may not modify
  97  *              any of the strings.  The enumeration function, @proc@, may
  98  *              return nonzero to stop itself from being called any more;
  99  *              if this happens, the value it returns becomes the result of
 100  *              this function.  If all the items are enumerated OK, this
 101  *              function returns zero.
 102  */
 103
 104 extern int netg_scan(netg */*n*/,
 105                      int (*/*proc*/)(netg */*n*/, const char */*host*/,
 106                                      const char */*user*/,
 107                                      const char */*domain*/, void */*ctx*/),
 108                      void */*ctx*/);
 109
 110 /* --- @netg_init@ --- *
 111  *
 112  * Arguments:   ---
 113  *
 114  * Returns:     ---
 115  *
 116  * Use:         Reads the netgroup database and turns it into something nice.
 117  */
 118
 119 extern void netg_init(void);
 120
 121 /* --- @netg_end@ --- *
 122  *
 123  * Arguments:   ---
 124  *
 125  * Returns:     ---
 126  *
 127  * Use:         Empties the netgroups database.
 128  */
 129
 130 extern void netg_end(void);
 131
 132 /*----- That's all, folks -------------------------------------------------*/
 133
 134 #ifdef __cplusplus
 135   }
 136 #endif
 137
 138 #endif