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-rw-r--r--crypto/heimdal/lib/hdb/db.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/crypto/heimdal/lib/hdb/db.c b/crypto/heimdal/lib/hdb/db.c
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--- a/crypto/heimdal/lib/hdb/db.c
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-/*
- * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include "hdb_locl.h"
-
-RCSID("$Id: db.c 20215 2007-02-09 21:59:53Z lha $");
-
-#if HAVE_DB1
-
-#if defined(HAVE_DB_185_H)
-#include <db_185.h>
-#elif defined(HAVE_DB_H)
-#include <db.h>
-#endif
-
-static krb5_error_code
-DB_close(krb5_context context, HDB *db)
-{
- DB *d = (DB*)db->hdb_db;
- (*d->close)(d);
- return 0;
-}
-
-static krb5_error_code
-DB_destroy(krb5_context context, HDB *db)
-{
- krb5_error_code ret;
-
- ret = hdb_clear_master_key (context, db);
- free(db->hdb_name);
- free(db);
- return ret;
-}
-
-static krb5_error_code
-DB_lock(krb5_context context, HDB *db, int operation)
-{
- DB *d = (DB*)db->hdb_db;
- int fd = (*d->fd)(d);
- if(fd < 0) {
- krb5_set_error_string(context,
- "Can't lock database: %s", db->hdb_name);
- return HDB_ERR_CANT_LOCK_DB;
- }
- return hdb_lock(fd, operation);
-}
-
-static krb5_error_code
-DB_unlock(krb5_context context, HDB *db)
-{
- DB *d = (DB*)db->hdb_db;
- int fd = (*d->fd)(d);
- if(fd < 0) {
- krb5_set_error_string(context,
- "Can't unlock database: %s", db->hdb_name);
- return HDB_ERR_CANT_LOCK_DB;
- }
- return hdb_unlock(fd);
-}
-
-
-static krb5_error_code
-DB_seq(krb5_context context, HDB *db,
- unsigned flags, hdb_entry_ex *entry, int flag)
-{
- DB *d = (DB*)db->hdb_db;
- DBT key, value;
- krb5_data key_data, data;
- int code;
-
- code = db->hdb_lock(context, db, HDB_RLOCK);
- if(code == -1) {
- krb5_set_error_string(context, "Database %s in use", db->hdb_name);
- return HDB_ERR_DB_INUSE;
- }
- code = (*d->seq)(d, &key, &value, flag);
- db->hdb_unlock(context, db); /* XXX check value */
- if(code == -1) {
- code = errno;
- krb5_set_error_string(context, "Database %s seq error: %s",
- db->hdb_name, strerror(code));
- return code;
- }
- if(code == 1) {
- krb5_clear_error_string(context);
- return HDB_ERR_NOENTRY;
- }
-
- key_data.data = key.data;
- key_data.length = key.size;
- data.data = value.data;
- data.length = value.size;
- memset(entry, 0, sizeof(*entry));
- if (hdb_value2entry(context, &data, &entry->entry))
- return DB_seq(context, db, flags, entry, R_NEXT);
- if (db->hdb_master_key_set && (flags & HDB_F_DECRYPT)) {
- code = hdb_unseal_keys (context, db, &entry->entry);
- if (code)
- hdb_free_entry (context, entry);
- }
- if (code == 0 && entry->entry.principal == NULL) {
- entry->entry.principal = malloc(sizeof(*entry->entry.principal));
- if (entry->entry.principal == NULL) {
- krb5_set_error_string(context, "malloc: out of memory");
- code = ENOMEM;
- hdb_free_entry (context, entry);
- } else {
- hdb_key2principal(context, &key_data, entry->entry.principal);
- }
- }
- return code;
-}
-
-
-static krb5_error_code
-DB_firstkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
-{
- return DB_seq(context, db, flags, entry, R_FIRST);
-}
-
-
-static krb5_error_code
-DB_nextkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
-{
- return DB_seq(context, db, flags, entry, R_NEXT);
-}
-
-static krb5_error_code
-DB_rename(krb5_context context, HDB *db, const char *new_name)
-{
- int ret;
- char *old, *new;
-
- asprintf(&old, "%s.db", db->hdb_name);
- asprintf(&new, "%s.db", new_name);
- ret = rename(old, new);
- free(old);
- free(new);
- if(ret)
- return errno;
-
- free(db->hdb_name);
- db->hdb_name = strdup(new_name);
- return 0;
-}
-
-static krb5_error_code
-DB__get(krb5_context context, HDB *db, krb5_data key, krb5_data *reply)
-{
- DB *d = (DB*)db->hdb_db;
- DBT k, v;
- int code;
-
- k.data = key.data;
- k.size = key.length;
- code = db->hdb_lock(context, db, HDB_RLOCK);
- if(code)
- return code;
- code = (*d->get)(d, &k, &v, 0);
- db->hdb_unlock(context, db);
- if(code < 0) {
- code = errno;
- krb5_set_error_string(context, "Database %s get error: %s",
- db->hdb_name, strerror(code));
- return code;
- }
- if(code == 1) {
- krb5_clear_error_string(context);
- return HDB_ERR_NOENTRY;
- }
-
- krb5_data_copy(reply, v.data, v.size);
- return 0;
-}
-
-static krb5_error_code
-DB__put(krb5_context context, HDB *db, int replace,
- krb5_data key, krb5_data value)
-{
- DB *d = (DB*)db->hdb_db;
- DBT k, v;
- int code;
-
- k.data = key.data;
- k.size = key.length;
- v.data = value.data;
- v.size = value.length;
- code = db->hdb_lock(context, db, HDB_WLOCK);
- if(code)
- return code;
- code = (*d->put)(d, &k, &v, replace ? 0 : R_NOOVERWRITE);
- db->hdb_unlock(context, db);
- if(code < 0) {
- code = errno;
- krb5_set_error_string(context, "Database %s put error: %s",
- db->hdb_name, strerror(code));
- return code;
- }
- if(code == 1) {
- krb5_clear_error_string(context);
- return HDB_ERR_EXISTS;
- }
- return 0;
-}
-
-static krb5_error_code
-DB__del(krb5_context context, HDB *db, krb5_data key)
-{
- DB *d = (DB*)db->hdb_db;
- DBT k;
- krb5_error_code code;
- k.data = key.data;
- k.size = key.length;
- code = db->hdb_lock(context, db, HDB_WLOCK);
- if(code)
- return code;
- code = (*d->del)(d, &k, 0);
- db->hdb_unlock(context, db);
- if(code == 1) {
- code = errno;
- krb5_set_error_string(context, "Database %s put error: %s",
- db->hdb_name, strerror(code));
- return code;
- }
- if(code < 0)
- return errno;
- return 0;
-}
-
-static krb5_error_code
-DB_open(krb5_context context, HDB *db, int flags, mode_t mode)
-{
- char *fn;
- krb5_error_code ret;
-
- asprintf(&fn, "%s.db", db->hdb_name);
- if (fn == NULL) {
- krb5_set_error_string(context, "malloc: out of memory");
- return ENOMEM;
- }
- db->hdb_db = dbopen(fn, flags, mode, DB_BTREE, NULL);
- free(fn);
- /* try to open without .db extension */
- if(db->hdb_db == NULL && errno == ENOENT)
- db->hdb_db = dbopen(db->hdb_name, flags, mode, DB_BTREE, NULL);
- if(db->hdb_db == NULL) {
- ret = errno;
- krb5_set_error_string(context, "dbopen (%s): %s",
- db->hdb_name, strerror(ret));
- return ret;
- }
- if((flags & O_ACCMODE) == O_RDONLY)
- ret = hdb_check_db_format(context, db);
- else
- ret = hdb_init_db(context, db);
- if(ret == HDB_ERR_NOENTRY) {
- krb5_clear_error_string(context);
- return 0;
- }
- if (ret) {
- DB_close(context, db);
- krb5_set_error_string(context, "hdb_open: failed %s database %s",
- (flags & O_ACCMODE) == O_RDONLY ?
- "checking format of" : "initialize",
- db->hdb_name);
- }
- return ret;
-}
-
-krb5_error_code
-hdb_db_create(krb5_context context, HDB **db,
- const char *filename)
-{
- *db = calloc(1, sizeof(**db));
- if (*db == NULL) {
- krb5_set_error_string(context, "malloc: out of memory");
- return ENOMEM;
- }
-
- (*db)->hdb_db = NULL;
- (*db)->hdb_name = strdup(filename);
- if ((*db)->hdb_name == NULL) {
- krb5_set_error_string(context, "malloc: out of memory");
- free(*db);
- *db = NULL;
- return ENOMEM;
- }
- (*db)->hdb_master_key_set = 0;
- (*db)->hdb_openp = 0;
- (*db)->hdb_open = DB_open;
- (*db)->hdb_close = DB_close;
- (*db)->hdb_fetch = _hdb_fetch;
- (*db)->hdb_store = _hdb_store;
- (*db)->hdb_remove = _hdb_remove;
- (*db)->hdb_firstkey = DB_firstkey;
- (*db)->hdb_nextkey= DB_nextkey;
- (*db)->hdb_lock = DB_lock;
- (*db)->hdb_unlock = DB_unlock;
- (*db)->hdb_rename = DB_rename;
- (*db)->hdb__get = DB__get;
- (*db)->hdb__put = DB__put;
- (*db)->hdb__del = DB__del;
- (*db)->hdb_destroy = DB_destroy;
- return 0;
-}
-
-#endif /* HAVE_DB1 */
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