svc_simple.c
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上传日期:2007-01-17
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文件大小:6k
- /* svc_simple.c - simplified front end to rpc */
- /* Copyright 1984-2001 Wind River Systems, Inc. */
- #include "copyright_wrs.h"
- /*
- * Copyright (C) 1984, Sun Microsystems, Inc.
- *
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- /*
- modification history
- --------------------
- 01p,15oct01,rae merge from truestack ver 01q, base 01o (AE / 5_X)
- 01o,20feb97,jank removed comment in comment L:158
- 01n,15sep93,kdl changed svcudp_create() call to only pass one param (SPR #2427)
- 01m,11aug93,jmm Changed ioctl.h and socket.h to sys/ioctl.h and sys/socket.h
- 01l,26may92,rrr the tree shuffle
- 01k,04oct91,rrr passed through the ansification filter
- -changed includes to have absolute path from h/
- -changed copyright notice
- 01j,01apr91,elh added svc_simpleInclude.
- 01i,25oct90,dnw removed include of utime.h.
- 01h,10may90,dnw moved moduleStatics to rpcGbl; removed init/exit routines
- changed taskModuleList to taskRpcStatics
- 01g,19apr90,hjb de-linted.
- 01f,27oct89,hjb upgraded to 4.0
- 01e,04may89,dnw fixed bug in universal() of not freeing args.
- 01d,19apr89,gae added svc_simpleExit to do tidy cleanup for tasks.
- changed svc_simpleInit to return pointer to moduleStatics.
- 01c,05apr88,gae changed fprintf() to printErr().
- 01b,11nov87,jlf added wrs copyright, title, mod history, etc.
- 01a,01nov87,rdc first VxWorks version
- */
- #ifndef lint
- /* static char sccsid[] = "@(#)svc_simple.c 1.1 86/02/03 Copyr 1984 Sun Micro"; */
- #endif
- /*
- * svc_simple.c
- * Simplified front end to rpc.
- *
- */
- #include "rpc/rpc.h"
- #include "sys/socket.h"
- #include "vxWorks.h"
- #include "memLib.h"
- #include "rpc/rpcGbl.h"
- #include "memPartLib.h"
- #include "stdio.h"
- #include "rpc/pmap_clnt.h"
- LOCAL void universal(); /* 4.0 */
- void svc_simpleInclude ()
- {
- }
- int
- registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
- char *(*progname)();
- xdrproc_t inproc, outproc;
- {
- FAST struct svc_simple *ms = &taskRpcStatics->svc_simple;
- if (procnum == NULLPROC) {
- printErr ("can't reassign procedure number %dn", NULLPROC);
- return (-1);
- }
- if (!ms->madetransp) {
- ms->madetransp = 1;
- ms->transp = svcudp_create(RPC_ANYSOCK);
- if (ms->transp == NULL) {
- printErr ("couldn't create an rpc servern");
- return (-1);
- }
- }
- pmap_unset((u_long) prognum, (u_long) versnum);
- if (!svc_register(ms->transp, (u_long) prognum, (u_long) versnum,
- universal, IPPROTO_UDP)) {
- printErr ("couldn't register prog %d vers %dn",
- prognum, versnum);
- return (-1);
- }
- ms->pl = (struct proglst *) KHEAP_ALLOC(sizeof(struct proglst));
- if (ms->pl == NULL) {
- printErr ("registerrpc: out of memoryn");
- return (-1);
- }
- ms->pl->p_progname = progname;
- ms->pl->p_prognum = prognum;
- ms->pl->p_procnum = procnum;
- ms->pl->p_inproc = inproc;
- ms->pl->p_outproc = outproc;
- ms->pl->p_nxt = ms->proglst;
- ms->proglst = ms->pl;
- return (0);
- }
- LOCAL void universal(rqstp, transp) /* 4.0 */
- struct svc_req *rqstp;
- SVCXPRT *transp;
- {
- int prog, proc;
- char *outdata;
- /* XXX char xdrbuf[UDPMSGSIZE]; */
- char *xdrbuf = (char *) KHEAP_ALLOC(UDPMSGSIZE);
- struct proglst *pl;
- FAST struct svc_simple *ms = &taskRpcStatics->svc_simple;
- if (xdrbuf == NULL)
- {
- panic ("rpc: universal: out of memoryn");
- return;
- }
- /*
- * enforce "procnum 0 is echo" convention
- */
- if (rqstp->rq_proc == NULLPROC) {
- if (svc_sendreply(transp, xdr_void, (char *) 0) == FALSE) {
- printErr ("xxxn");
- KHEAP_FREE(xdrbuf);
- taskSuspend (0);
- }
- KHEAP_FREE(xdrbuf);
- return;
- }
- prog = rqstp->rq_prog;
- proc = rqstp->rq_proc;
- for (pl = ms->proglst; pl != NULL; pl = pl->p_nxt)
- if (pl->p_prognum == prog && pl->p_procnum == proc) {
- /* decode arguments into a CLEAN buffer */
- /*XXX bzero(xdrbuf, sizeof(xdrbuf)); required ! */
- bzero(xdrbuf, UDPMSGSIZE); /* required ! */
- if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
- svcerr_decode(transp);
- KHEAP_FREE(xdrbuf);
- return;
- }
- outdata = (*(pl->p_progname))(xdrbuf);
- if (outdata == NULL && pl->p_outproc != xdr_void)
- {
- /* there was an error */
- KHEAP_FREE(xdrbuf);
- return;
- }
- if (!svc_sendreply(transp, pl->p_outproc, outdata)) {
- printErr ("trouble replying to prog %dn",
- pl->p_prognum);
- KHEAP_FREE(xdrbuf);
- taskSuspend (0);
- }
- /* free the decoded arguments */
- (void)svc_freeargs(transp, pl->p_inproc, xdrbuf);
- KHEAP_FREE(xdrbuf);
- return;
- }
- printErr ("never registered prog %dn", prog);
- KHEAP_FREE(xdrbuf);
- taskSuspend (0);
- }