projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| de355530 A |
6 | * The contents of this file constitute Original Code as defined in and |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 1c79356b | 11 | * |
| de355530 A |
12 | * This Original Code and all software distributed under the License are |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| de355530 A |
16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 1c79356b A |
19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * dspNewCID.c | |
| 24 | * | |
| 25 | * From v01.04 04/20/90 mbs | |
| 26 | * Modified, April 9, 1997 by Tuyen Nguyen for MacOSX. | |
| 27 | */ | |
| 28 | ||
| 29 | #include <sys/errno.h> | |
| 30 | #include <sys/types.h> | |
| 31 | #include <sys/param.h> | |
| 32 | #include <machine/spl.h> | |
| 33 | #include <sys/systm.h> | |
| 34 | #include <sys/kernel.h> | |
| 35 | #include <sys/proc.h> | |
| 36 | #include <sys/filedesc.h> | |
| 37 | #include <sys/fcntl.h> | |
| 38 | #include <sys/mbuf.h> | |
| 39 | #include <sys/socket.h> | |
| 40 | ||
| 41 | #include <netat/sysglue.h> | |
| 42 | #include <netat/appletalk.h> | |
| 43 | #include <netat/at_pcb.h> | |
| 44 | #include <netat/debug.h> | |
| 45 | #include <netat/adsp.h> | |
| 46 | #include <netat/adsp_internal.h> | |
| 47 | ||
| 48 | /* | |
| 49 | * dspNewCID | |
| 50 | * | |
| 51 | * INPUTS: | |
| 52 | * --> ccbRefNum refnum of connection end | |
| 53 | * | |
| 54 | * OUTPUTS: | |
| 55 | * <-- newCID new connection identifier | |
| 56 | * | |
| 57 | * ERRORS: | |
| 58 | * errRefNum bad connection refnum | |
| 59 | * errState connection is not closed | |
| 60 | */ | |
| 61 | int adspNewCID(sp, pb) /* (DSPPBPtr pb) */ | |
| 62 | CCBPtr sp; | |
| 63 | struct adspcmd *pb; | |
| 64 | { | |
| 65 | if (sp == 0) { | |
| 66 | pb->ioResult = errRefNum; | |
| 67 | return EINVAL; | |
| 68 | } | |
| 69 | ||
| 70 | if (sp->state != sClosed) { /* Can only assign to a closed connection */ | |
| 71 | pb->ioResult = errState; | |
| 72 | return EINVAL; | |
| 73 | } | |
| 74 | ||
| 75 | /* | |
| 76 | * Assign a unique connection ID to this ccb | |
| 77 | */ | |
| 78 | sp->locCID = pb->u.newCIDParams.newcid = NextCID(); | |
| 79 | ||
| 80 | pb->ioResult = 0; | |
| 81 | adspioc_ack(0, pb->ioc, pb->gref); | |
| 82 | return 0; | |
| 83 | } |