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

   1 /* -*-c-*-
   2  *
   3  * $Id: netg.h,v 1.4 2003/10/12 00:14:55 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  /*----- Revision history --------------------------------------------------*
  30  *
  31  * $Log: netg.h,v $
  32  * Revision 1.4  2003/10/12 00:14:55  mdw
  33  * Major overhaul.  Now uses DSA signatures rather than the bogus symmetric
  34  * encrypt-and-hope thing.  Integrated with mLib and Catacomb.
  35  *
  36  * Revision 1.3  1998/01/12 16:46:18  mdw
  37  * Fix copyright date.
  38  *
  39  * Revision 1.2  1997/08/20  16:19:24  mdw
  40  * Replace `name_reinit' by `name_end' for more sensible restart.
  41  *
  42  * Revision 1.1  1997/08/07 09:45:00  mdw
  43  * New source file added to maintain a netgroups database.
  44  *
  45  */
  46
  47 #ifndef NETG_H
  48 #define NETG_H
  49
  50 #ifdef __cplusplus
  51   extern "C" {
  52 #endif
  53
  54 /*----- Required headers --------------------------------------------------*/
  55
  56 #include <mLib/sym.h>
  57
  58 /*----- Type definitions --------------------------------------------------*/
  59
  60 typedef sym_iter netg_iter;
  61 typedef struct netg__sym netg;
  62
  63 /*----- Functions provided ------------------------------------------------*/
  64
  65 /* --- @netg_iterate@, @netg_iterate_r@ --- *
  66  *
  67  * Arguments:   @netg_iter *i@ = pointer to a netgroup iterator object
  68  *
  69  * Returns:     ---
  70  *
  71  * Use:         Starts iterating over the netgroups.
  72  */
  73
  74 extern void netg_iterate(void);
  75 extern void netg_iterate_r(netg_iter */*i*/);
  76
  77 /* --- @netg_next@, @netg_next_r@ --- *
  78  *
  79  * Arguments:   @netg_iter *i@ = pointer to a netgroup iterator object
  80  *
  81  * Returns:     An opaque pointer to the next item, or null.
  82  *
  83  * Use:         Returns the next netgroup.
  84  */
  85
  86 extern netg *netg_next(void);
  87 extern netg *netg_next_r(netg_iter */*i*/);
  88
  89 /* --- @netg_name@ --- *
  90  *
  91  * Arguments:   @netg *n@ = netgroup handle returned by @netg_next@.
  92  *
  93  * Returns:     A pointer to the name; you may not modify this string.
  94  *
  95  * Use:         Returns the name of a netgroup.
  96  */
  97
  98 extern const char *netg_name(netg */*n*/);
  99
 100 /* --- @netg_scan@ --- *
 101  *
 102  * Arguments:   @netg *n@ = a netgroup handle returned by @netg_next@
 103  *              @int (*proc)(netg *n, const char *host, const char *user,@
 104  *                      @const char *domain, void *ctx)@ = function to call
 105  *                              for each member.
 106  *              @void *ctx@ = context pointer to pass to @proc@.
 107  *
 108  * Returns:     Zero if all went well, or the nonzero return value from
 109  *              @proc@.
 110  *
 111  * Use:         Passes all the members of the netgroup to a given function.
 112  *              The function is given the names, directly from the NIS
 113  *              netgroup map, except that any empty entries are passed as
 114  *              null pointers rather than empty strings.  You may not modify
 115  *              any of the strings.  The enumeration function, @proc@, may
 116  *              return nonzero to stop itself from being called any more;
 117  *              if this happens, the value it returns becomes the result of
 118  *              this function.  If all the items are enumerated OK, this
 119  *              function returns zero.
 120  */
 121
 122 extern int netg_scan(netg */*n*/,
 123                      int (*/*proc*/)(netg */*n*/, const char */*host*/,
 124                                      const char */*user*/,
 125                                      const char */*domain*/, void */*ctx*/),
 126                      void */*ctx*/);
 127
 128 /* --- @netg_init@ --- *
 129  *
 130  * Arguments:   ---
 131  *
 132  * Returns:     ---
 133  *
 134  * Use:         Reads the netgroup database and turns it into something nice.
 135  */
 136
 137 extern void netg_init(void);
 138
 139 /* --- @netg_end@ --- *
 140  *
 141  * Arguments:   ---
 142  *
 143  * Returns:     ---
 144  *
 145  * Use:         Empties the netgroups database.
 146  */
 147
 148 extern void netg_end(void);
 149
 150 /*----- That's all, folks -------------------------------------------------*/
 151
 152 #ifdef __cplusplus
 153   }
 154 #endif
 155
 156 #endif