/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* dspCLListen.c * * From Mike Shoemaker v01.02 04/19/90 mbs * Modified, April 9, 1997 by Tuyen Nguyen for MacOSX. */ #include <sys/errno.h> #include <sys/types.h> #include <sys/param.h> #include <machine/spl.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/proc.h> #include <sys/filedesc.h> #include <sys/fcntl.h> #include <sys/mbuf.h> #include <sys/socket.h> #include <netat/sysglue.h> #include <netat/appletalk.h> #include <netat/at_pcb.h> #include <netat/debug.h> #include <netat/adsp.h> #include <netat/adsp_internal.h> /* * dspCLListen * * INPUTS: * --> ccbRefNum refnum of connection end * --> filterAddress filter for incoming open connection requests * * OUTPUTS: * <-- remoteCID connection identifier of remote connection end * <-- remoteAddress internet address of remote connection end * <-- sendSeq initial send sequence number to use * <-- sendWindow initial size of remote end's receive buffer * <-- attnSendSeq initial attention send sequence number to use * * ERRORS: * errRefNum bad connection refnum * errState not a connection listener * errAborted request aborted by a Remove call */ int adspCLListen(sp, pb) /* (DSPPBPtr pb) */ register CCBPtr sp; register struct adspcmd *pb; { register struct adspcmd *clpb; gbuf_t *mp; int s; if (sp == 0) { pb->ioResult = errRefNum; return EINVAL; } if (sp->state != sListening) { /* But this isn't a connection listener! */ pb->ioResult = errState; return EALREADY; } if (mp = gbuf_copym(pb->mp)) { /* keep a copy of the parameter block */ pb->ioResult = 1; /* not done */ adspioc_ack(0, pb->ioc, pb->gref); /* release user ioctl block */ clpb = (struct adspcmd *)gbuf_rptr(mp); clpb->ioc = 0; clpb->mp = mp; ATDISABLE(s, sp->lock); if (qAddToEnd(&sp->opb, clpb)){ /* Add to list of listeners */ ATENABLE(s, sp->lock); return EFAULT; /* bogus, but discriminate from other errors */ } ATENABLE(s, sp->lock); } else { pb->ioResult = errDSPQueueSize; return ENOBUFS; } return 0; }