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      1 /* Copyright (C) 1997, 1998, 1999, 2006, 2007 Free Software Foundation, Inc.
      2    This file is part of the GNU C Library.
      3    Contributed by Thorsten Kukuk <kukuk (at) suse.de>, 1997.
      4 
      5    The GNU C Library is free software; you can redistribute it and/or
      6    modify it under the terms of the GNU Lesser General Public
      7    License as published by the Free Software Foundation; either
      8    version 2.1 of the License, or (at your option) any later version.
      9 
     10    The GNU C Library is distributed in the hope that it will be useful,
     11    but WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13    Lesser General Public License for more details.
     14 
     15    You should have received a copy of the GNU Lesser General Public
     16    License along with the GNU C Library; if not, write to the Free
     17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     18    02111-1307 USA.  */
     19 
     20 #ifndef	__RPCSVC_NISLIB_H__
     21 #define	__RPCSVC_NISLIB_H__
     22 
     23 #include <features.h>
     24 
     25 __BEGIN_DECLS
     26 
     27 typedef const char *const_nis_name;
     28 
     29 /* nis_names: These functions are used to locate and manipulate all NIS+
     30  * objects except the NIS+ entry objects.
     31  *
     32  * nis_lookup (name, flags) resolves a NIS+ name and returns a copy of
     33  *                          that object  from a NIS+ server.
     34  *    const nis_name name: name of the object to be resolved
     35  *    unsigned int flags: logically ORing zero or more flags (FOLLOW_LINKS,
     36  *                          HARD_LOOKUP, [NO_CACHE], MASTER_ONLY, EXPAND_NAME)
     37  *
     38  * nis_add (name, obj) adds objects to the NIS+ namespace.
     39  *    const nis_name name: fully qualified NIS+ name.
     40  *    const nis_object *obj: object members zo_name and zo_domain will be
     41  *                           constructed from name.
     42  *
     43  * nis_remove (name, obj) removes objects from the NIS+ namespace.
     44  *    const nis_name name: fully qualified NIS+ name.
     45  *    const nis_object *obj: if not NULL, it is assumed to point to a copy
     46  *                           of the object being removed. In this case, if
     47  *                           the object on the server does not have the same
     48  *                           object identifier as the  object  being  passed,
     49  *                           the operation will fail with the NIS_NOTSAMEOBJ
     50  *                           error.
     51  *
     52  * nis_modify (name, obj) can change specific attributes of an object
     53  *                        that already exists in the namespace.
     54  */
     55 extern nis_result *nis_lookup (const_nis_name name, unsigned int flags)
     56      __THROW;
     57 extern nis_result *nis_add (const_nis_name name, const nis_object *obj)
     58      __THROW;
     59 extern nis_result *nis_remove (const_nis_name name,
     60 			       const nis_object *obj) __THROW;
     61 extern nis_result *nis_modify (const_nis_name name,
     62 			       const nis_object *obj) __THROW;
     63 
     64 /* nis_tables: These functions are used to search and modify NIS+ tables.
     65  *
     66  * nis_list (table_name, flags, callback(table_name, obj, userdata), userdata)
     67  *           search a table in the NIS+ namespace.
     68  *    const nis_name table_name: indexed name ([xx=yy],table.dir)
     69  *    unsigned int flags: logically ORing one or more flags (FOLLOW_LINKS,
     70  *                      [FOLLOW_PATH], HARD_LOOKUP, [ALL_RESULTS], [NO_CACHE],
     71  *                      MASTER_ONLY, EXPAND_NAME, RETURN_RESULT)
     72  *    callback(): callback is an optional pointer to a function that will
     73  *                process the ENTRY type objects that are returned from the
     74  *                search. If this pointer is NULL, then all entries that match
     75  *                the search criteria are returned in the nis_result structure,
     76  *                otherwise  this  function  will  be  called once for each
     77  *                entry returned.
     78  *    void *userdata: passed to callback function along with the returned
     79  *                    entry object.
     80  *
     81  * nis_add_entry (table_name, obj, flags) will add the NIS+ object to the
     82  *                                        NIS+ table_name.
     83  *    const nis_name table_name
     84  *    const nis_object *obj
     85  *    unsigned int flags: 0, ADD_OVERWRITE, RETURN_RESULT
     86  *
     87  * nis_modify_entry (name, obj, flags) modifies an object identified by name.
     88  *    const nis_name name: object identifier
     89  *    const nis_object *obj: should point to an entry with the EN_MODIFIED
     90  *                           flag set in each column that contains new
     91  *                           information.
     92  *    unsigned int flags: 0, MOD_SAMEOBJ, RETURN_RESULT
     93  *
     94  * nis_remove_entry (table_name, obj, flags) removes a set of entries
     95  *                                 identified by table_name from the table.
     96  *    const nis_name table_name: indexed NIS+ name
     97  *    const nis_object *obj: if obj is non-null, it is presumed to point to
     98  *                           a cached copy of the entry. When the removal is
     99  *                           attempted, and the object that would be removed
    100  *                           is not the same as the cached object pointed to
    101  *                           by object then the operation will fail with an
    102  *                           NIS_NOTSAMEOBJ error
    103  *    unsigned int flags: 0, REM_MULTIPLE
    104  *
    105  * nis_first_entry (table_name) fetches entries from a table one at a time.
    106  *    const nis_name table_name
    107  *
    108  * nis_next_entry (table_name, cookie) retrieves the "next" entry from a
    109  *                                     table specified by table_name.
    110  *    const nis_name table_name:
    111  *    const netobj *cookie: The value of cookie from the nis_result structure
    112  *                          form the previous call.
    113  */
    114 extern nis_result *nis_list (const_nis_name name, unsigned int flags,
    115 			     int (*callback)(const_nis_name table_name,
    116 					     const nis_object *obj,
    117 					     const void *userdata),
    118 			     const void *userdata) __THROW;
    119 extern nis_result *nis_add_entry (const_nis_name table_name,
    120 				  const nis_object *obj,
    121 				  unsigned int flags) __THROW;
    122 extern nis_result *nis_modify_entry (const_nis_name name,
    123 				     const nis_object *obj,
    124 				     unsigned int flags) __THROW;
    125 extern nis_result *nis_remove_entry (const_nis_name table_name,
    126 				     const nis_object *obj,
    127 				     unsigned int flags) __THROW;
    128 extern nis_result *nis_first_entry (const_nis_name table_name) __THROW;
    129 extern nis_result *nis_next_entry (const_nis_name table_name,
    130 				   const netobj *cookie) __THROW;
    131 /*
    132 ** nis_server
    133 */
    134 extern nis_error nis_mkdir (const_nis_name dirname,
    135 			    const nis_server *machine) __THROW;
    136 extern nis_error nis_rmdir (const_nis_name dirname,
    137 			    const nis_server *machine) __THROW;
    138 extern nis_error nis_servstate (const nis_server *machine,
    139 				const nis_tag *tags, int numtags,
    140 				nis_tag **result) __THROW;
    141 extern nis_error nis_stats (const nis_server *machine,
    142 			    const nis_tag *tags, int numtags,
    143 			    nis_tag **result) __THROW;
    144 extern void nis_freetags (nis_tag *tags, int numtags) __THROW;
    145 extern nis_server **nis_getservlist (const_nis_name dirname) __THROW;
    146 extern void nis_freeservlist (nis_server **machines) __THROW;
    147 
    148 /*
    149 ** nis_subr
    150 */
    151 extern nis_name nis_leaf_of (const_nis_name name) __THROW;
    152 extern nis_name nis_leaf_of_r (const_nis_name name, char *buffer,
    153 			       size_t buflen) __THROW;
    154 extern nis_name nis_name_of (const_nis_name name) __THROW;
    155 extern nis_name nis_name_of_r (const_nis_name name, char *buffer,
    156 			       size_t buflen) __THROW;
    157 extern nis_name nis_domain_of (const_nis_name name) __THROW;
    158 extern nis_name nis_domain_of_r (const_nis_name name, char *buffer,
    159 				 size_t buflen) __THROW;
    160 extern nis_name *nis_getnames (const_nis_name name) __THROW;
    161 extern void nis_freenames (nis_name *namelist) __THROW;
    162 extern name_pos nis_dir_cmp (const_nis_name n1, const_nis_name n2) __THROW;
    163 extern nis_object *nis_clone_object (const nis_object *src,
    164 				     nis_object *dest) __THROW;
    165 extern void nis_destroy_object (nis_object *obj) __THROW;
    166 extern void nis_print_object (const nis_object *obj) __THROW;
    167 
    168 /*
    169 ** nis_local_names
    170 */
    171 extern nis_name nis_local_group (void) __THROW;
    172 extern nis_name nis_local_directory (void) __THROW;
    173 extern nis_name nis_local_principal (void) __THROW;
    174 extern nis_name nis_local_host (void) __THROW;
    175 
    176 /*
    177 ** nis_error
    178 */
    179 extern const char *nis_sperrno (const nis_error status) __THROW;
    180 extern void nis_perror (const nis_error status, const char *label) __THROW;
    181 extern void nis_lerror (const nis_error status, const char *label) __THROW;
    182 extern char *nis_sperror (const nis_error status, const char *label) __THROW;
    183 extern char *nis_sperror_r (const nis_error status, const char *label,
    184 			    char *buffer, size_t buflen) __THROW;
    185 /*
    186 ** nis_groups
    187 */
    188 extern bool_t nis_ismember (const_nis_name principal,
    189 			    const_nis_name group) __THROW;
    190 extern nis_error nis_addmember (const_nis_name member,
    191 				const_nis_name group) __THROW;
    192 extern nis_error nis_removemember (const_nis_name member,
    193 				   const_nis_name group) __THROW;
    194 extern nis_error nis_creategroup (const_nis_name group,
    195 				  unsigned int flags) __THROW;
    196 extern nis_error nis_destroygroup (const_nis_name group) __THROW;
    197 extern void nis_print_group_entry (const_nis_name group) __THROW;
    198 extern nis_error nis_verifygroup (const_nis_name group) __THROW;
    199 
    200 /*
    201 ** nis_ping
    202 */
    203 extern void nis_ping (const_nis_name dirname, uint32_t utime,
    204 		      const nis_object *dirobj) __THROW;
    205 extern nis_result *nis_checkpoint (const_nis_name dirname) __THROW;
    206 
    207 /*
    208 ** nis_print (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
    209 */
    210 extern void nis_print_result (const nis_result *result) __THROW;
    211 extern void nis_print_rights (unsigned int rights) __THROW;
    212 extern void nis_print_directory (const directory_obj *dirobj) __THROW;
    213 extern void nis_print_group (const group_obj *grpobj) __THROW;
    214 extern void nis_print_table (const table_obj *tblobj) __THROW;
    215 extern void nis_print_link (const link_obj *lnkobj) __THROW;
    216 extern void nis_print_entry (const entry_obj *enobj) __THROW;
    217 
    218 /*
    219 ** nis_file (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
    220 */
    221 extern directory_obj *readColdStartFile (void) __THROW;
    222 extern bool_t writeColdStartFile (const directory_obj *dirobj) __THROW;
    223 extern nis_object *nis_read_obj (const char *obj) __THROW;
    224 extern bool_t nis_write_obj (const char *file, const nis_object *obj) __THROW;
    225 
    226 /*
    227 ** nis_clone - (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
    228 */
    229 extern directory_obj *nis_clone_directory (const directory_obj *src,
    230 					   directory_obj *dest) __THROW;
    231 extern nis_result *nis_clone_result (const nis_result *src,
    232 				     nis_result *dest) __THROW;
    233 
    234 /* nis_free - nis_freeresult */
    235 extern void nis_freeresult (nis_result *result) __THROW;
    236 /* (XXX THE FOLLOWING ARE INTERNAL FUNCTIONS, SHOULD NOT BE USED !!) */
    237 extern void nis_free_request (ib_request *req) __THROW;
    238 extern void nis_free_directory (directory_obj *dirobj) __THROW;
    239 extern void nis_free_object (nis_object *obj) __THROW;
    240 
    241 /* (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!) */
    242 extern nis_name __nis_default_owner (char *) __THROW;
    243 extern nis_name __nis_default_group (char *) __THROW;
    244 extern uint32_t __nis_default_ttl (char *) __THROW;
    245 extern unsigned int __nis_default_access (char *, unsigned int) __THROW;
    246 extern fd_result *__nis_finddirectory (directory_obj *, const_nis_name) __THROW;
    247 extern void __free_fdresult (fd_result *) __THROW;
    248 extern uint32_t __nis_hash (const void *keyarg, register size_t len) __THROW;
    249 
    250 /* NIS+ cache locking */
    251 extern int __nis_lock_cache (void) __THROW;
    252 extern int __nis_unlock_cache (void) __THROW;
    253 
    254 /* (XXX INTERNAL FUNCTIONS, ONLY FOR rpc.nisd AND glibc !!) */
    255 #if defined (NIS_INTERNAL) || defined (_LIBC)
    256 
    257 struct dir_binding
    258 {
    259   CLIENT *clnt;                  /* RPC CLIENT handle */
    260   nis_server *server_val;        /* List of servers */
    261   unsigned int server_len;       /* # of servers */
    262   unsigned int server_used;      /* Which server we are bind in the moment ? */
    263   unsigned int current_ep;       /* Which endpoint of the server are in use? */
    264   unsigned int trys;             /* How many server have we tried ? */
    265   unsigned int class;            /* From which class is server_val ? */
    266   bool_t master_only;            /* Is only binded to the master */
    267   bool_t use_auth;               /* Do we use AUTH ? */
    268   bool_t use_udp;                /* Do we use UDP ? */
    269   struct sockaddr_in addr;       /* Server's IP address */
    270   int socket;                    /* Server's local socket */
    271 };
    272 typedef struct dir_binding dir_binding;
    273 
    274 extern nis_error __nisbind_create (dir_binding *, const nis_server *,
    275 				   unsigned int, unsigned int, unsigned int,
    276 				   unsigned int) __THROW;
    277 extern nis_error __nisbind_connect (dir_binding *) __THROW;
    278 extern nis_error __nisbind_next (dir_binding *) __THROW;
    279 extern void __nisbind_destroy (dir_binding *) __THROW;
    280 extern nis_error __nisfind_server (const_nis_name, int, directory_obj **,
    281 				   dir_binding *, unsigned int) __THROW;
    282 
    283 #endif
    284 
    285 __END_DECLS
    286 
    287 #endif	/* __RPCSVC_NISLIB_H__ */
    288