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      1 /* Copyright (C) 1997, 1998, 1999, 2006, 2007, 2009
      2    Free Software Foundation, Inc.
      3    This file is part of the GNU C Library.
      4    Contributed by Thorsten Kukuk <kukuk (at) suse.de>, 1997.
      5 
      6    The GNU C Library is free software; you can redistribute it and/or
      7    modify it under the terms of the GNU Lesser General Public
      8    License as published by the Free Software Foundation; either
      9    version 2.1 of the License, or (at your option) any later version.
     10 
     11    The GNU C Library is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14    Lesser General Public License for more details.
     15 
     16    You should have received a copy of the GNU Lesser General Public
     17    License along with the GNU C Library; if not, write to the Free
     18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     19    02111-1307 USA.  */
     20 
     21 #ifndef	__RPCSVC_NISLIB_H__
     22 #define	__RPCSVC_NISLIB_H__
     23 
     24 #include <features.h>
     25 
     26 __BEGIN_DECLS
     27 
     28 typedef const char *const_nis_name;
     29 
     30 /* nis_names: These functions are used to locate and manipulate all NIS+
     31  * objects except the NIS+ entry objects.
     32  *
     33  * nis_lookup (name, flags) resolves a NIS+ name and returns a copy of
     34  *                          that object  from a NIS+ server.
     35  *    const nis_name name: name of the object to be resolved
     36  *    unsigned int flags: logically ORing zero or more flags (FOLLOW_LINKS,
     37  *                          HARD_LOOKUP, [NO_CACHE], MASTER_ONLY, EXPAND_NAME)
     38  *
     39  * nis_add (name, obj) adds objects to the NIS+ namespace.
     40  *    const nis_name name: fully qualified NIS+ name.
     41  *    const nis_object *obj: object members zo_name and zo_domain will be
     42  *                           constructed from name.
     43  *
     44  * nis_remove (name, obj) removes objects from the NIS+ namespace.
     45  *    const nis_name name: fully qualified NIS+ name.
     46  *    const nis_object *obj: if not NULL, it is assumed to point to a copy
     47  *                           of the object being removed. In this case, if
     48  *                           the object on the server does not have the same
     49  *                           object identifier as the  object  being  passed,
     50  *                           the operation will fail with the NIS_NOTSAMEOBJ
     51  *                           error.
     52  *
     53  * nis_modify (name, obj) can change specific attributes of an object
     54  *                        that already exists in the namespace.
     55  */
     56 extern nis_result *nis_lookup (const_nis_name name, unsigned int flags)
     57      __THROW;
     58 extern nis_result *nis_add (const_nis_name name, const nis_object *obj)
     59      __THROW;
     60 extern nis_result *nis_remove (const_nis_name name,
     61 			       const nis_object *obj) __THROW;
     62 extern nis_result *nis_modify (const_nis_name name,
     63 			       const nis_object *obj) __THROW;
     64 
     65 /* nis_tables: These functions are used to search and modify NIS+ tables.
     66  *
     67  * nis_list (table_name, flags, callback(table_name, obj, userdata), userdata)
     68  *           search a table in the NIS+ namespace.
     69  *    const nis_name table_name: indexed name ([xx=yy],table.dir)
     70  *    unsigned int flags: logically ORing one or more flags (FOLLOW_LINKS,
     71  *                      [FOLLOW_PATH], HARD_LOOKUP, [ALL_RESULTS], [NO_CACHE],
     72  *                      MASTER_ONLY, EXPAND_NAME, RETURN_RESULT)
     73  *    callback(): callback is an optional pointer to a function that will
     74  *                process the ENTRY type objects that are returned from the
     75  *                search. If this pointer is NULL, then all entries that match
     76  *                the search criteria are returned in the nis_result structure,
     77  *                otherwise  this  function  will  be  called once for each
     78  *                entry returned.
     79  *    void *userdata: passed to callback function along with the returned
     80  *                    entry object.
     81  *
     82  * nis_add_entry (table_name, obj, flags) will add the NIS+ object to the
     83  *                                        NIS+ table_name.
     84  *    const nis_name table_name
     85  *    const nis_object *obj
     86  *    unsigned int flags: 0, ADD_OVERWRITE, RETURN_RESULT
     87  *
     88  * nis_modify_entry (name, obj, flags) modifies an object identified by name.
     89  *    const nis_name name: object identifier
     90  *    const nis_object *obj: should point to an entry with the EN_MODIFIED
     91  *                           flag set in each column that contains new
     92  *                           information.
     93  *    unsigned int flags: 0, MOD_SAMEOBJ, RETURN_RESULT
     94  *
     95  * nis_remove_entry (table_name, obj, flags) removes a set of entries
     96  *                                 identified by table_name from the table.
     97  *    const nis_name table_name: indexed NIS+ name
     98  *    const nis_object *obj: if obj is non-null, it is presumed to point to
     99  *                           a cached copy of the entry. When the removal is
    100  *                           attempted, and the object that would be removed
    101  *                           is not the same as the cached object pointed to
    102  *                           by object then the operation will fail with an
    103  *                           NIS_NOTSAMEOBJ error
    104  *    unsigned int flags: 0, REM_MULTIPLE
    105  *
    106  * nis_first_entry (table_name) fetches entries from a table one at a time.
    107  *    const nis_name table_name
    108  *
    109  * nis_next_entry (table_name, cookie) retrieves the "next" entry from a
    110  *                                     table specified by table_name.
    111  *    const nis_name table_name:
    112  *    const netobj *cookie: The value of cookie from the nis_result structure
    113  *                          form the previous call.
    114  */
    115 extern nis_result *nis_list (const_nis_name __name, unsigned int __flags,
    116 			     int (*__callback)(const_nis_name __table_name,
    117 					       const nis_object *__obj,
    118 					       const void *__userdata),
    119 			     const void *__userdata) __THROW;
    120 extern nis_result *nis_add_entry (const_nis_name __table_name,
    121 				  const nis_object *__obj,
    122 				  unsigned int __flags) __THROW;
    123 extern nis_result *nis_modify_entry (const_nis_name __name,
    124 				     const nis_object *__obj,
    125 				     unsigned int __flags) __THROW;
    126 extern nis_result *nis_remove_entry (const_nis_name __table_name,
    127 				     const nis_object *__obj,
    128 				     unsigned int __flags) __THROW;
    129 extern nis_result *nis_first_entry (const_nis_name __table_name) __THROW;
    130 extern nis_result *nis_next_entry (const_nis_name __table_name,
    131 				   const netobj *__cookie) __THROW;
    132 /*
    133 ** nis_server
    134 */
    135 extern nis_error nis_mkdir (const_nis_name __dirname,
    136 			    const nis_server *__machine) __THROW;
    137 extern nis_error nis_rmdir (const_nis_name __dirname,
    138 			    const nis_server *__machine) __THROW;
    139 extern nis_error nis_servstate (const nis_server *__machine,
    140 				const nis_tag *__tags, int __numtags,
    141 				nis_tag **__result) __THROW;
    142 extern nis_error nis_stats (const nis_server *__machine,
    143 			    const nis_tag *__tags, int __numtags,
    144 			    nis_tag **__result) __THROW;
    145 extern void nis_freetags (nis_tag *__tags, int __numtags) __THROW;
    146 extern nis_server **nis_getservlist (const_nis_name __dirname) __THROW;
    147 extern void nis_freeservlist (nis_server **__machines) __THROW;
    148 
    149 /*
    150 ** nis_subr
    151 */
    152 extern nis_name nis_leaf_of (const_nis_name __name) __THROW;
    153 extern nis_name nis_leaf_of_r (const_nis_name __name, char *__buffer,
    154 			       size_t __buflen) __THROW;
    155 extern nis_name nis_name_of (const_nis_name __name) __THROW;
    156 extern nis_name nis_name_of_r (const_nis_name __name, char *__buffer,
    157 			       size_t __buflen) __THROW;
    158 extern nis_name nis_domain_of (const_nis_name __name) __THROW;
    159 extern nis_name nis_domain_of_r (const_nis_name __name, char *__buffer,
    160 				 size_t __buflen) __THROW;
    161 extern nis_name *nis_getnames (const_nis_name __name) __THROW;
    162 extern void nis_freenames (nis_name *__namelist) __THROW;
    163 extern name_pos nis_dir_cmp (const_nis_name __n1, const_nis_name __n2) __THROW;
    164 extern nis_object *nis_clone_object (const nis_object *__src,
    165 				     nis_object *__dest) __THROW;
    166 extern void nis_destroy_object (nis_object *__obj) __THROW;
    167 extern void nis_print_object (const nis_object *__obj) __THROW;
    168 
    169 /*
    170 ** nis_local_names
    171 */
    172 extern nis_name nis_local_group (void) __THROW;
    173 extern nis_name nis_local_directory (void) __THROW;
    174 extern nis_name nis_local_principal (void) __THROW;
    175 extern nis_name nis_local_host (void) __THROW;
    176 
    177 /*
    178 ** nis_error
    179 */
    180 extern const char *nis_sperrno (const nis_error __status) __THROW;
    181 extern void nis_perror (const nis_error __status, const char *__label) __THROW;
    182 extern void nis_lerror (const nis_error __status, const char *__label) __THROW;
    183 extern char *nis_sperror (const nis_error status, const char *__label) __THROW;
    184 extern char *nis_sperror_r (const nis_error __status, const char *__label,
    185 			    char *__buffer, size_t __buflen) __THROW;
    186 /*
    187 ** nis_groups
    188 */
    189 extern bool_t nis_ismember (const_nis_name __principal,
    190 			    const_nis_name __group) __THROW;
    191 extern nis_error nis_addmember (const_nis_name __member,
    192 				const_nis_name __group) __THROW;
    193 extern nis_error nis_removemember (const_nis_name __member,
    194 				   const_nis_name __group) __THROW;
    195 extern nis_error nis_creategroup (const_nis_name __group,
    196 				  unsigned int __flags) __THROW;
    197 extern nis_error nis_destroygroup (const_nis_name __group) __THROW;
    198 extern void nis_print_group_entry (const_nis_name __group) __THROW;
    199 extern nis_error nis_verifygroup (const_nis_name __group) __THROW;
    200 
    201 /*
    202 ** nis_ping
    203 */
    204 extern void nis_ping (const_nis_name __dirname, uint32_t __utime,
    205 		      const nis_object *__dirobj) __THROW;
    206 extern nis_result *nis_checkpoint (const_nis_name __dirname) __THROW;
    207 
    208 /*
    209 ** nis_print (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
    210 */
    211 extern void nis_print_result (const nis_result *__result) __THROW;
    212 extern void nis_print_rights (unsigned int __rights) __THROW;
    213 extern void nis_print_directory (const directory_obj *__dirobj) __THROW;
    214 extern void nis_print_group (const group_obj *__grpobj) __THROW;
    215 extern void nis_print_table (const table_obj *__tblobj) __THROW;
    216 extern void nis_print_link (const link_obj *__lnkobj) __THROW;
    217 extern void nis_print_entry (const entry_obj *__enobj) __THROW;
    218 
    219 /*
    220 ** nis_file (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
    221 */
    222 extern directory_obj *readColdStartFile (void) __THROW;
    223 extern bool_t writeColdStartFile (const directory_obj *__dirobj) __THROW;
    224 extern nis_object *nis_read_obj (const char *__obj) __THROW;
    225 extern bool_t nis_write_obj (const char *__file, const nis_object *__obj) __THROW;
    226 
    227 /*
    228 ** nis_clone - (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
    229 */
    230 extern directory_obj *nis_clone_directory (const directory_obj *__src,
    231 					   directory_obj *__dest) __THROW;
    232 extern nis_result *nis_clone_result (const nis_result *__src,
    233 				     nis_result *__dest) __THROW;
    234 
    235 /* nis_free - nis_freeresult */
    236 extern void nis_freeresult (nis_result *__result) __THROW;
    237 /* (XXX THE FOLLOWING ARE INTERNAL FUNCTIONS, SHOULD NOT BE USED !!) */
    238 extern void nis_free_request (ib_request *__req) __THROW;
    239 extern void nis_free_directory (directory_obj *__dirobj) __THROW;
    240 extern void nis_free_object (nis_object *__obj) __THROW;
    241 
    242 /* (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!) */
    243 extern nis_name __nis_default_owner (char *) __THROW;
    244 extern nis_name __nis_default_group (char *) __THROW;
    245 extern uint32_t __nis_default_ttl (char *) __THROW;
    246 extern unsigned int __nis_default_access (char *, unsigned int) __THROW;
    247 extern fd_result *__nis_finddirectory (directory_obj *, const_nis_name) __THROW;
    248 extern void __free_fdresult (fd_result *) __THROW;
    249 extern uint32_t __nis_hash (const void *__keyarg, size_t __len) __THROW;
    250 
    251 /* NIS+ cache locking */
    252 extern int __nis_lock_cache (void) __THROW;
    253 extern int __nis_unlock_cache (void) __THROW;
    254 
    255 /* (XXX INTERNAL FUNCTIONS, ONLY FOR rpc.nisd AND glibc !!) */
    256 #if defined (NIS_INTERNAL) || defined (_LIBC)
    257 
    258 struct dir_binding
    259 {
    260   CLIENT *clnt;                  /* RPC CLIENT handle */
    261   nis_server *server_val;        /* List of servers */
    262   unsigned int server_len;       /* # of servers */
    263   unsigned int server_used;      /* Which server we are bind in the moment ? */
    264   unsigned int current_ep;       /* Which endpoint of the server are in use? */
    265   unsigned int trys;             /* How many server have we tried ? */
    266   unsigned int class;            /* From which class is server_val ? */
    267   bool_t master_only;            /* Is only binded to the master */
    268   bool_t use_auth;               /* Do we use AUTH ? */
    269   bool_t use_udp;                /* Do we use UDP ? */
    270   struct sockaddr_in addr;       /* Server's IP address */
    271   int socket;                    /* Server's local socket */
    272 };
    273 typedef struct dir_binding dir_binding;
    274 
    275 extern nis_error __nisbind_create (dir_binding *, const nis_server *,
    276 				   unsigned int, unsigned int, unsigned int,
    277 				   unsigned int) __THROW;
    278 extern nis_error __nisbind_connect (dir_binding *) __THROW;
    279 extern nis_error __nisbind_next (dir_binding *) __THROW;
    280 extern void __nisbind_destroy (dir_binding *) __THROW;
    281 extern nis_error __nisfind_server (const_nis_name, int, directory_obj **,
    282 				   dir_binding *, unsigned int) __THROW;
    283 
    284 #endif
    285 
    286 __END_DECLS
    287 
    288 #endif	/* __RPCSVC_NISLIB_H__ */
    289