/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (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] * * CDDL HEADER END */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Data Link API - Unbind Descriptor */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include extern struct dl_descriptor *_getdesc(); int dl_unbind(int fd) { struct dl_descriptor *dl; struct strbuf ctl; int flags; union DL_primitives prim; if ((dl = _getdesc(fd)) == NULL) { errno = EBADF; return (-1); } if (dl->info.state == DLSTATE_IDLE) { ctl.maxlen = ctl.len = sizeof (dl_unbind_req_t); ctl.buf = (char *)&prim; memset(&prim, '\0', sizeof (prim)); prim.dl_primitive = DL_UNBIND_REQ; } else { dl->error = DLOUTSTATE; return (-1); } if (putmsg(fd, &ctl, NULL, 0) < 0) { dl->error = DLSYSERR; return (-1); } ctl.maxlen = sizeof (prim); flags = 0; if (getmsg(fd, &ctl, NULL, &flags) < 0) { dl->error = DLSYSERR; return (-1); } if (prim.dl_primitive != DL_OK_ACK) { dl->error = DLOUTSTATE; return (-1); } return (0); }