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/* ``The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved via the world wide web at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Initial Developer of the Original Code is Ericsson Utvecklings AB.
* Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
* AB. All Rights Reserved.''
*
* $Id$
*/
#include <stdio.h>
#include <string.h>
#include "erl_driver.h"
static ErlDrvSSizeT call(ErlDrvData drv_data,
unsigned int command,
char *buf, ErlDrvSizeT len,
char **rbuf, ErlDrvSizeT rlen,
unsigned int *flags);
static ErlDrvEntry otp_6879_drv_entry = {
NULL /* init */,
NULL /* start */,
NULL /* stop */,
NULL /* output */,
NULL /* ready_input */,
NULL /* ready_output */,
"otp_6879_drv",
NULL /* finish */,
NULL /* handle */,
NULL /* control */,
NULL /* timeout */,
NULL /* outputv */,
NULL /* ready_async */,
NULL /* flush */,
call,
NULL /* event */,
ERL_DRV_EXTENDED_MARKER,
ERL_DRV_EXTENDED_MAJOR_VERSION,
ERL_DRV_EXTENDED_MINOR_VERSION,
ERL_DRV_FLAG_USE_PORT_LOCKING,
NULL /* handle2 */,
NULL /* handle_monitor */
};
DRIVER_INIT(otp_6879_drv)
{
return &otp_6879_drv_entry;
}
static ErlDrvSSizeT call(ErlDrvData drv_data,
unsigned int command,
char *buf, ErlDrvSizeT len,
char **rbuf, ErlDrvSizeT rlen,
unsigned int *flags)
{
/* echo call */
if (len > rlen)
*rbuf = driver_alloc(len);
memcpy((void *) *rbuf, (void *) buf, len);
return len;
}
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