14 #include        <db.h>
25     DB *db;  in osa_adb_create_db()  local
36     db = dbopen(filename, O_RDWR | O_CREAT | O_EXCL, 0600, DB_BTREE, &btinfo);  in osa_adb_create_db()
37     if (db == NULL)  in osa_adb_create_db()
39     if (db->close(db) < 0)  in osa_adb_create_db()
42     /* only create the lock file if we successfully created the db */  in osa_adb_create_db()
65     osa_adb_db_t db;  in osa_adb_init_db()  local
73     db = (osa_adb_princ_t) malloc(sizeof(osa_adb_db_ent));  in osa_adb_init_db()
74     if (db == NULL)  in osa_adb_init_db()
77     memset(db, 0, sizeof(*db));  in osa_adb_init_db()
78     db->info.hash = NULL;  in osa_adb_init_db()
79     db->info.bsize = 256;  in osa_adb_init_db()
80     db->info.ffactor = 8;  in osa_adb_init_db()
81     db->info.nelem = 25000;  in osa_adb_init_db()
82     db->info.lorder = 0;  in osa_adb_init_db()
84     db->btinfo.flags = 0;  in osa_adb_init_db()
85     db->btinfo.cachesize = 0;  in osa_adb_init_db()
86     db->btinfo.psize = 4096;  in osa_adb_init_db()
87     db->btinfo.lorder = 0;  in osa_adb_init_db()
88     db->btinfo.minkeypage = 0;  in osa_adb_init_db()
89     db->btinfo.compare = NULL;  in osa_adb_init_db()
90     db->btinfo.prefix = NULL;  in osa_adb_init_db()
130             free(db);  in osa_adb_init_db()
137             free(db);  in osa_adb_init_db()
147             free(db);  in osa_adb_init_db()
162                 free(db);  in osa_adb_init_db()
171     db->lock = &lockp->lockinfo;  in osa_adb_init_db()
172     db->lock->refcnt++;  in osa_adb_init_db()
174     db->opencnt = 0;  in osa_adb_init_db()
175     db->filename = strdup(filename);  in osa_adb_init_db()
176     db->magic = magic;  in osa_adb_init_db()
178     *dbp = db;  in osa_adb_init_db()
184 osa_adb_fini_db(osa_adb_db_t db, int magic)  in osa_adb_fini_db()  argument
186     if (db->magic != magic)  in osa_adb_fini_db()
188     if (db->lock->refcnt == 0) {  in osa_adb_fini_db()
192         db->lock->refcnt--;  in osa_adb_fini_db()
195     if (db->lock->refcnt == 0) {  in osa_adb_fini_db()
197          * Don't free db->lock->filename, it is used as a key to  in osa_adb_fini_db()
203         if (db->lock->lockmode != KRB5_DB_LOCKMODE_PERMANENT)  in osa_adb_fini_db()
204             (void) fclose(db->lock->lockfile);  in osa_adb_fini_db()
205         db->lock->lockfile = NULL;  in osa_adb_fini_db()
206         krb5_free_context(db->lock->context);  in osa_adb_fini_db()
209     db->magic = 0;  in osa_adb_fini_db()
210     free(db->filename);  in osa_adb_fini_db()
211     free(db);  in osa_adb_fini_db()
216 osa_adb_get_lock(osa_adb_db_t db, int mode)  in osa_adb_get_lock()  argument
220     if (db->lock->lockmode >= mode) {  in osa_adb_get_lock()
222         db->lock->lockcnt++;  in osa_adb_get_lock()
240     ret = krb5_lock_file(db->lock->context, fileno(db->lock->lockfile),  in osa_adb_get_lock()
256     if (access(db->lock->filename, F_OK) < 0) {  in osa_adb_get_lock()
257         (void) krb5_lock_file(db->lock->context,  in osa_adb_get_lock()
258                               fileno(db->lock->lockfile),  in osa_adb_get_lock()
266         if (unlink(db->lock->filename) < 0) {  in osa_adb_get_lock()
271             (void) krb5_lock_file(db->lock->context,  in osa_adb_get_lock()
272                                   fileno(db->lock->lockfile),  in osa_adb_get_lock()
276             /* look just like the db was already locked */  in osa_adb_get_lock()
282         (void) fclose(db->lock->lockfile);  in osa_adb_get_lock()
285     db->lock->lockmode = mode;  in osa_adb_get_lock()
286     db->lock->lockcnt++;  in osa_adb_get_lock()
291 osa_adb_release_lock(osa_adb_db_t db)  in osa_adb_release_lock()  argument
295     if (!db->lock->lockcnt)            /* lock already unlocked */  in osa_adb_release_lock()
298     if (--db->lock->lockcnt == 0) {  in osa_adb_release_lock()
299         if (db->lock->lockmode == KRB5_DB_LOCKMODE_PERMANENT) {  in osa_adb_release_lock()
301             fd = THREEPARAMOPEN(db->lock->filename,O_RDWR | O_CREAT | O_EXCL,  in osa_adb_release_lock()
306             if ((db->lock->lockfile = fdopen(fd, "w+")) == NULL)  in osa_adb_release_lock()
308         } else if ((ret = krb5_lock_file(db->lock->context,  in osa_adb_release_lock()
309                                          fileno(db->lock->lockfile),  in osa_adb_release_lock()
313         db->lock->lockmode = 0;  in osa_adb_release_lock()
319 osa_adb_open_and_lock(osa_adb_princ_t db, int locktype)  in osa_adb_open_and_lock()  argument
323     ret = osa_adb_get_lock(db, locktype);  in osa_adb_open_and_lock()
326     if (db->opencnt)  in osa_adb_open_and_lock()
329     db->db = dbopen(db->filename, O_RDWR, 0600, DB_BTREE, &db->btinfo);  in osa_adb_open_and_lock()
330     if (db->db == NULL && IS_EFTYPE(errno))  in osa_adb_open_and_lock()
331         db->db = dbopen(db->filename, O_RDWR, 0600, DB_HASH, &db->info);  in osa_adb_open_and_lock()
332     if (db->db == NULL) {  in osa_adb_open_and_lock()
333         (void)osa_adb_release_lock(db);  in osa_adb_open_and_lock()
338     db->opencnt++;  in osa_adb_open_and_lock()
343 osa_adb_close_and_unlock(osa_adb_princ_t db)  in osa_adb_close_and_unlock()  argument
345     if (--db->opencnt)  in osa_adb_close_and_unlock()
346         return osa_adb_release_lock(db);  in osa_adb_close_and_unlock()
347     if(db->db != NULL && db->db->close(db->db) == -1) {  in osa_adb_close_and_unlock()
348         (void) osa_adb_release_lock(db);  in osa_adb_close_and_unlock()
352     db->db = NULL;  in osa_adb_close_and_unlock()
354     return(osa_adb_release_lock(db));  in osa_adb_close_and_unlock()