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Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
dp
count
rval
Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
MIOC2ACK 9F "Jun 9, 2004"
NAME
mioc2ack - Convert an M_IOCTL message to an M_IOCACK message
SYNOPSIS
#include <sys/stream.h> #include <sys/strsun.h> void mioc2ack(mblk_t *mp, mblk_t *dp, size_t count, int rval);
INTERFACE LEVEL
illumos DDI specific (illumos DDI).
PARAMETERS
mp
M_IOCTL message.
Payload to associate with M_IOCACK message.
Value to set the ioc_count of the iocblk(9S) to.
Value to set the ioc_rval of the iocblk(9S) to.
DESCRIPTION
The mioc2ack() function converts an M_IOCTL message into an M_IOCACK
message using the supplied arguments.
To convert the message, mioc2ack() changes the message type to M_IOCACK, sets the ioc_count and ioc_rval members of the iocblk(9S) associated with mp to the passed-in values, and clears the ioc_error field. Further, it frees any message blocks chained off of mp->b_cont and resets mp->b_cont to dp. Finally, if dp is not NULL, mioc2ack() resets dp->b_wptr to be dp->b_rptr + count (that is, it sets dp to be exactly count bytes in length).
RETURN VALUES
None.
CONTEXT
This function can be called from user, kernel or interrupt context.
SEE ALSO
miocack (9F), miocnak (9F), iocblk (9S) STREAMS Programming Guide