Home | History | Annotate | Line # | Download | only in include 
      1 /*
      2 
      3 Copyright 1990, 1991, 1998  The Open Group
      4 
      5 Permission to use, copy, modify, distribute, and sell this software and its
      6 documentation for any purpose is hereby granted without fee, provided that
      7 the above copyright notice appear in all copies and that both that
      8 copyright notice and this permission notice appear in supporting
      9 documentation.
     10 
     11 The above copyright notice and this permission notice shall be included in
     12 all copies or substantial portions of the Software.
     13 
     14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     20 
     21 Except as contained in this notice, the name of The Open Group shall not be
     22 used in advertising or otherwise to promote the sale, use or other dealings
     23 in this Software without prior written authorization from The Open Group.
     24 
     25  * Copyright 1990, 1991 Network Computing Devices;
     26  * Portions Copyright 1987 by Digital Equipment Corporation
     27  *
     28  * Permission to use, copy, modify, distribute, and sell this software and
     29  * its documentation for any purpose is hereby granted without fee, provided
     30  * that the above copyright notice appear in all copies and that both that
     31  * copyright notice and this permission notice appear in supporting
     32  * documentation, and that the names of Network Computing Devices, or Digital
     33  * not be used in advertising or publicity pertaining to distribution
     34  * of the software without specific, written prior permission.
     35  *
     36  * NETWORK COMPUTING DEVICES, AND DIGITAL DISCLAIM ALL WARRANTIES WITH
     37  * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
     38  * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES,
     39  * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
     40  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
     41  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
     42  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
     43  * THIS SOFTWARE.
     44  */
     45 
     46 #ifndef	_CLIENT_H_
     47 #define	_CLIENT_H_
     48 
     49 #ifndef _XTYPEDEF_CLIENTPTR
     50 typedef struct _Client *ClientPtr;
     51 #define _XTYPEDEF_CLIENTPTR
     52 #endif
     53 
     54 #include <misc.h>
     55 
     56 extern ClientPtr *clients;
     57 extern ClientPtr serverClient;
     58 
     59 #define	NullClient	((ClientPtr) NULL)
     60 
     61 #define	SERVER_CLIENT	0
     62 #define	MINCLIENT	1
     63 
     64 #define	CLIENT_ALIVE		0
     65 #define	CLIENT_GONE		1
     66 #define	CLIENT_AGED		2
     67 #define	CLIENT_TIMED_OUT	4
     68 
     69 #define	REQUEST(type)	\
     70 	type *stuff = (type *)client->requestBuffer
     71 
     72 #define	REQUEST_FIXED_SIZE(fs_req, n)					\
     73 	if (((SIZEOF(fs_req) >> 2) > stuff->length) ||			\
     74 		(((SIZEOF(fs_req) + (n) + 3) >> 2) != stuff->length)) {	\
     75 	    int lengthword = stuff->length;				\
     76 	    SendErrToClient(client, FSBadLength, (pointer)&lengthword); \
     77 	    return (FSBadLength);	\
     78 	}
     79 
     80 #define	REQUEST_SIZE_MATCH(fs_req)				\
     81 	if ((SIZEOF(fs_req) >> 2) != stuff->length) {	\
     82 	    int lengthword = stuff->length;				\
     83 	    SendErrToClient(client, FSBadLength, (pointer)&lengthword); \
     84 	    return (FSBadLength);	\
     85 	}
     86 
     87 #define	REQUEST_AT_LEAST_SIZE(fs_req)					\
     88 	if ((SIZEOF(fs_req) >> 2) > stuff->length) {			\
     89 	    int lengthword = stuff->length;				\
     90 	    SendErrToClient(client, FSBadLength, (pointer)&lengthword); \
     91 	    return (FSBadLength);	\
     92 	}
     93 
     94 #define	WriteReplyToClient(client, size, reply)			\
     95 	if ((client)->swapped)						\
     96 	    (*ReplySwapVector[((fsReq *)(client)->requestBuffer)->reqType]) \
     97 		(client, (int)(size), reply);				\
     98 	else	(void)WriteToClient(client, (int)(size), (char *)(reply));
     99 
    100 #define	WriteSwappedDataToClient(client, size, pbuf)		\
    101 	if ((client)->swapped)						\
    102 	    (*(client)->pSwapReplyFunc)(client, (int)(size), pbuf);	\
    103 	else (void) WriteToClient(client, (int)(size), (char *)(pbuf));
    104 
    105 
    106 typedef struct _WorkQueue       *WorkQueuePtr;
    107 
    108 #include <difsutils.h> /* for ProcessWorkQueue(void) */
    109 
    110 extern int  (*ProcVector[]) (ClientPtr);
    111 extern int  (*SwappedProcVector[]) (ClientPtr);
    112 
    113 #endif				/* _CLIENT_H_ */
    114