static krb5_error_code
NDBM_open(krb5_context context, HDB *db, int flags, mode_t mode)
{
krb5_error_code ret;
struct ndbm_db *d = malloc(sizeof(*d));
char *lock_file;
if(d == NULL) {
krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
return ENOMEM;
}
asprintf(&lock_file, "%s.lock", (char*)db->hdb_name);
if(lock_file == NULL) {
free(d);
krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
return ENOMEM;
}
d->db = dbm_open((char*)db->hdb_name, flags, mode);
if(d->db == NULL){
ret = errno;
free(d);
free(lock_file);
krb5_set_error_message(context, ret, "dbm_open(%s): %s", db->hdb_name,
strerror(ret));
return ret;
}
d->lock_fd = open(lock_file, O_RDWR | O_CREAT, 0600);
if(d->lock_fd < 0){
ret = errno;
dbm_close(d->db);
free(d);
krb5_set_error_message(context, ret, "open(%s): %s", lock_file,
strerror(ret));
free(lock_file);
return ret;
}
free(lock_file);
db->hdb_db = d;
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)
return 0;
if (ret) {
NDBM_close(context, db);
krb5_set_error_message(context, ret, "hdb_open: failed %s database %s",
(flags & O_ACCMODE) == O_RDONLY ?
"checking format of" : "initialize",
db->hdb_name);
}
return ret;
}
static krb5_error_code
mdb_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_message(context, ENOMEM, "malloc: out of memory");
return ENOMEM;
}
db->hdb_db = dbopen(fn, flags, mode, DB_BTREE, NULL);
free(fn);
if (db->hdb_db == NULL) {
switch (errno) {
#ifdef EFTYPE
case EFTYPE:
#endif
case EINVAL:
db->hdb_db = dbopen(fn, flags, mode, DB_BTREE, NULL);
}
}
/* 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_message(context, ret, "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_message(context);
return 0;
}
if (ret) {
mdb_close(context, db);
krb5_set_error_message(context, ret, "hdb_open: failed %s database %s",
(flags & O_ACCMODE) == O_RDONLY ?
"checking format of" : "initialize",
db->hdb_name);
}
return ret;
}
static krb5_error_code
DB_open(krb5_context context, HDB *db, int flags, mode_t mode)
{
DB1_HDB *db1 = (DB1_HDB *)db;
char *fn;
krb5_error_code ret;
asprintf(&fn, "%s.db", db->hdb_name);
if (fn == NULL) {
krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
return ENOMEM;
}
db->hdb_db = _open_db(fn, flags, mode, &db1->lock_fd);
free(fn);
/* try to open without .db extension */
if(db->hdb_db == NULL && errno == ENOENT)
db->hdb_db = _open_db(db->hdb_name, flags, mode, &db1->lock_fd);
if(db->hdb_db == NULL) {
krb5_set_error_message(context, errno, "dbopen (%s): %s",
db->hdb_name, strerror(errno));
return errno;
}
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_message(context);
return 0;
}
if (ret) {
DB_close(context, db);
krb5_set_error_message(context, ret, "hdb_open: failed %s database %s",
(flags & O_ACCMODE) == O_RDONLY ?
"checking format of" : "initialize",
db->hdb_name);
}
return ret;
}
static krb5_error_code
DB_open(krb5_context context, HDB *db, int flags, mode_t mode)
{
DBC *dbc = NULL;
char *fn;
krb5_error_code ret;
DB *d;
int myflags = 0;
if (flags & O_CREAT)
myflags |= DB_CREATE;
if (flags & O_EXCL)
myflags |= DB_EXCL;
if((flags & O_ACCMODE) == O_RDONLY)
myflags |= DB_RDONLY;
if (flags & O_TRUNC)
myflags |= DB_TRUNCATE;
asprintf(&fn, "%s.db", db->hdb_name);
if (fn == NULL) {
krb5_set_error_string(context, "malloc: out of memory");
return ENOMEM;
}
db_create(&d, NULL, 0);
db->hdb_db = d;
#if (DB_VERSION_MAJOR >= 4) && (DB_VERSION_MINOR >= 1)
ret = (*d->open)(db->hdb_db, NULL, fn, NULL, DB_BTREE, myflags, mode);
#else
ret = (*d->open)(db->hdb_db, fn, NULL, DB_BTREE, myflags, mode);
#endif
if (ret == ENOENT) {
/* try to open without .db extension */
#if (DB_VERSION_MAJOR >= 4) && (DB_VERSION_MINOR >= 1)
ret = (*d->open)(db->hdb_db, NULL, db->hdb_name, NULL, DB_BTREE,
myflags, mode);
#else
ret = (*d->open)(db->hdb_db, db->hdb_name, NULL, DB_BTREE,
myflags, mode);
#endif
}
if (ret) {
free(fn);
krb5_set_error_string(context, "opening %s: %s",
db->hdb_name, strerror(ret));
return ret;
}
free(fn);
ret = (*d->cursor)(d, NULL, &dbc, 0);
if (ret) {
krb5_set_error_string(context, "d->cursor: %s", strerror(ret));
return ret;
}
db->hdb_dbc = dbc;
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)
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;
}