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			343 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			343 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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|  * unrestricted use provided that this legend is included on all tape
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|  * media and as a part of the software program in whole or part.  Users
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|  * may copy or modify Sun RPC without charge, but are not authorized
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|  * to license or distribute it to anyone else except as part of a product or
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|  * program developed by the user or with the express written consent of
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|  * Sun Microsystems, Inc.
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|  *
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|  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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|  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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|  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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|  *
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|  * Sun RPC is provided with no support and without any obligation on the
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|  * part of Sun Microsystems, Inc. to assist in its use, correction,
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|  * modification or enhancement.
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|  *
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|  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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|  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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|  * OR ANY PART THEREOF.
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|  *
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|  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
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|  * or profits or other special, indirect and consequential damages, even if
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|  * Sun has been advised of the possibility of such damages.
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|  *
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|  * Sun Microsystems, Inc.
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|  * 2550 Garcia Avenue
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|  * Mountain View, California  94043
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|  */
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| 
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| /*
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|  * From: @(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI
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|  */
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| char clntout_rcsid[] =
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|   "$Id$";
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| 
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| /*
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|  * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler
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|  * Copyright (C) 1987, Sun Microsystems, Inc.
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|  */
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| #include <stdio.h>
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| #include <string.h>
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| #include <rpc/types.h>
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| #include "rpc_parse.h"
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| #include "rpc_util.h"
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| #include "proto.h"
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| 
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| #define DEFAULT_TIMEOUT 25	/* in seconds */
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| static const char RESULT[] = "clnt_res";
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| 
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| static void write_program (definition * def);
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| static void printbody (proc_list * proc);
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| static const char *ampr (const char *type);
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| static void printbody (proc_list * proc);
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| 
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| 
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| void
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| write_stubs (void)
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| {
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|   list *l;
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|   definition *def;
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| 
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|   fprintf (fout,
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| 	   "\n/* Default timeout can be changed using clnt_control() */\n");
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|   fprintf (fout, "static struct timeval TIMEOUT = { %d, 0 };\n",
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| 	   DEFAULT_TIMEOUT);
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|   for (l = defined; l != NULL; l = l->next)
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|     {
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|       def = (definition *) l->val;
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|       if (def->def_kind == DEF_PROGRAM)
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| 	{
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| 	  write_program (def);
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| 	}
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|     }
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| }
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| 
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| static void
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| write_program (definition * def)
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| {
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|   version_list *vp;
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|   proc_list *proc;
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| 
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|   for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
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|     {
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|       for (proc = vp->procs; proc != NULL; proc = proc->next)
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| 	{
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| 	  fprintf (fout, "\n");
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| 	  if (mtflag == 0)
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| 	    {
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| 	      ptype (proc->res_prefix, proc->res_type, 1);
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| 	      fprintf (fout, "*\n");
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| 	      pvname (proc->proc_name, vp->vers_num);
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| 	      printarglist (proc, RESULT, "clnt", "CLIENT *");
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| 	    }
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| 	  else
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| 	    {
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| 	      fprintf (fout, "enum clnt_stat \n");
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| 	      pvname (proc->proc_name, vp->vers_num);
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| 	      printarglist (proc, RESULT, "clnt", "CLIENT *");
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| 	    }
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| 	  fprintf (fout, "{\n");
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| 	  printbody (proc);
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| 	  fprintf (fout, "}\n");
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| 	}
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|     }
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| }
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| 
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| /* Writes out declarations of procedure's argument list.
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|    In either ANSI C style, in one of old rpcgen style (pass by reference),
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|    or new rpcgen style (multiple arguments, pass by value);
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|  */
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| 
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| /* sample addargname = "clnt"; sample addargtype = "CLIENT * " */
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| 
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| void
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| printarglist (proc_list * proc,  const char *result,
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| 	      const char *addargname, const char *addargtype)
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| {
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| 
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|   decl_list *l;
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| 
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|   if (!newstyle)
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|     { /* old style: always pass argument by reference */
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|       if (Cflag)
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| 	{			/* C++ style heading */
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| 	  fprintf (fout, "(");
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| 	  ptype (proc->args.decls->decl.prefix,
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| 		 proc->args.decls->decl.type, 1);
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| 
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| 	  if (mtflag)
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| 	    {/* Generate result field */
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| 	      fprintf (fout, "*argp, ");
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| 	      ptype(proc->res_prefix, proc->res_type, 1);
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| 	      fprintf (fout, "*%s, %s%s)\n", result, addargtype, addargname);
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| 	    }
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| 	  else
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| 	    fprintf (fout, "*argp, %s%s)\n", addargtype, addargname);
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| 	}
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|       else
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| 	{
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| 	  if (!mtflag)
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| 	    fprintf (fout, "(argp, %s)\n", addargname);
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| 	  else
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| 	    fprintf (fout, "(argp, %s, %s)\n", result, addargname);
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| 	  fprintf (fout, "\t");
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| 	  ptype (proc->args.decls->decl.prefix,
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| 		 proc->args.decls->decl.type, 1);
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| 	  fprintf (fout, "*argp;\n");
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| 	  if (mtflag)
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| 	    {
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| 	      fprintf (fout, "\t");
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| 	      ptype (proc->res_prefix, proc->res_type, 1);
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| 	      fprintf (fout, "*%s;\n", result);
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| 	    }
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| 	}
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|     }
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|   else if (streq (proc->args.decls->decl.type, "void"))
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|     {
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|       /* newstyle, 0 argument */
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|       if (mtflag)
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| 	{
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| 	  fprintf (fout, "(");
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| 	  if (Cflag)
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| 	    {
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| 	      ptype(proc->res_prefix, proc->res_type, 1);
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| 	      fprintf (fout, "*%s, %s%s)\n", result, addargtype, addargname);
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| 	    }
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| 	  else
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| 	    fprintf (fout, "(%s)\n", addargname);
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| 	}
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|       else if (Cflag)
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| 	fprintf (fout, "(%s%s)\n", addargtype, addargname);
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|       else
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| 	fprintf (fout, "(%s)\n", addargname);
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|     }
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|   else
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|     {
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|       /* new style, 1 or multiple arguments */
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|       if (!Cflag)
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| 	{
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| 	  fprintf (fout, "(");
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| 	  for (l = proc->args.decls; l != NULL; l = l->next)
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| 	    fprintf (fout, "%s, ", l->decl.name);
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| 	  if (mtflag)
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| 	    fprintf (fout, "%s, ", result);
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|  	  fprintf (fout, "%s)\n", addargname);
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| 	  for (l = proc->args.decls; l != NULL; l = l->next)
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| 	    {
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| 	      pdeclaration (proc->args.argname, &l->decl, 1, ";\n");
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| 	    }
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| 	  if (mtflag)
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| 	    {
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| 	      fprintf (fout, "\t");
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| 	      ptype (proc->res_prefix, proc->res_type, 1);
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| 	      fprintf (fout, "*%s;\n", result);
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| 	    }
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| 	}
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|       else
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| 	{			/* C++ style header */
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| 	  fprintf (fout, "(");
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| 	  for (l = proc->args.decls; l != NULL; l = l->next)
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| 	    {
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| 	      pdeclaration (proc->args.argname, &l->decl, 0, ", ");
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| 	    }
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| 	  if (mtflag)
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| 	    {
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| 	      ptype (proc->res_prefix, proc->res_type, 1);
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| 	      fprintf (fout, "*%s, ", result);
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| 	    }
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|  	  fprintf (fout, " %s%s)\n", addargtype, addargname);
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| 	}
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|     }
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| 
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|   if (!Cflag)
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|     fprintf (fout, "\t%s%s;\n", addargtype, addargname);
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| }
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| 
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| 
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| static
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| const char *
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| ampr (const char *type)
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| {
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|   if (isvectordef (type, REL_ALIAS))
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|     {
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|       return "";
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|     }
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|   else
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|     {
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|       return "&";
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|     }
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| }
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| 
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| static void
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| printbody (proc_list * proc)
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| {
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|   decl_list *l;
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|   bool_t args2 = (proc->arg_num > 1);
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| /*  int i; */
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| 
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|   /* For new style with multiple arguments, need a structure in which
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|      to stuff the arguments. */
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|   if (newstyle && args2)
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|     {
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|       fprintf (fout, "\t%s", proc->args.argname);
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|       fprintf (fout, " arg;\n");
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|     }
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|   if (!mtflag)
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|     {
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|       fprintf (fout, "\tstatic ");
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|       if (streq (proc->res_type, "void"))
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| 	{
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| 	  fprintf (fout, "char ");
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| 	}
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|       else
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| 	{
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| 	  ptype (proc->res_prefix, proc->res_type, 0);
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| 	}
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|       fprintf (fout, "%s;\n", RESULT);
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|       fprintf (fout, "\n");
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|       fprintf (fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n",
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| 	       ampr (proc->res_type), RESULT, RESULT);
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|     }
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|   if (newstyle && !args2 && (streq (proc->args.decls->decl.type, "void")))
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|     {
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|       /* newstyle, 0 arguments */
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|       if (mtflag)
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| 	fprintf (fout, "\t return ");
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|       else
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| 	fprintf (fout, "\t if ");
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|       fprintf (fout,
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| 	       "(clnt_call (clnt, %s, (xdrproc_t) xdr_void, ", proc->proc_name);
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| 
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|       fprintf (fout,
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| 	       "(caddr_t) NULL,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,",
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| 	       stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type),
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| 	       RESULT);
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|       if (mtflag)
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| 	fprintf (fout, "\n\t\tTIMEOUT));\n\n");
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|       else
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| 	fprintf (fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n");
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|     }
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|   else if (newstyle && args2)
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|     {
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|       /* newstyle, multiple arguments:  stuff arguments into structure */
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|       for (l = proc->args.decls; l != NULL; l = l->next)
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| 	{
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| 	  fprintf (fout, "\targ.%s = %s;\n",
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| 		   l->decl.name, l->decl.name);
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| 	}
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|       if (mtflag)
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| 	fprintf (fout, "\treturn ");
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|       else
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| 	fprintf (fout, "\tif ");
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| 
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|       fprintf (fout,
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| 	       "(clnt_call (clnt, %s, (xdrproc_t) xdr_%s", proc->proc_name,
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| 	       proc->args.argname);
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|       fprintf (fout,
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| 	       ", (caddr_t) &arg,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,",
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| 	       stringfix(proc->res_type), (mtflag)?"":ampr(proc->res_type),
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| 	       RESULT);
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|       if (mtflag)
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| 	fprintf (fout, "\n\t\tTIMEOUT));\n");
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|       else
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| 	fprintf (fout, "\n\t\tTIMEOUT) != RPC_SUCCESS) {\n");
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|     }
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|   else
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|     {				/* single argument, new or old style */
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|       if (!mtflag)
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| 	fprintf (fout,
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| 		 "\tif (clnt_call (clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT) != RPC_SUCCESS) {\n",
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| 		 proc->proc_name,
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| 		 stringfix (proc->args.decls->decl.type),
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| 		 (newstyle ? "&" : ""),
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| 		 (newstyle ? proc->args.decls->decl.name : "argp"),
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| 		 stringfix (proc->res_type), ampr (proc->res_type),
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| 		 RESULT);
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|       else
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| 	fprintf(fout,
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| 		"\treturn (clnt_call(clnt, %s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\t(xdrproc_t) xdr_%s, (caddr_t) %s%s,\n\t\tTIMEOUT));\n",
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| 		proc->proc_name,
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| 		stringfix (proc->args.decls->decl.type),
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| 		(newstyle ? "&" : ""),
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| 		(newstyle ? proc->args.decls->decl.name : "argp"),
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| 		stringfix (proc->res_type), "",
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| 		RESULT);
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|     }
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|   if (!mtflag)
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|     {
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|       fprintf (fout, "\t\treturn (NULL);\n");
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|       fprintf (fout, "\t}\n");
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|       if (streq (proc->res_type, "void"))
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| 	{
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| 	  fprintf (fout, "\treturn ((void *)%s%s);\n",
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| 		   ampr (proc->res_type), RESULT);
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| 	}
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|       else
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| 	{
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| 	  fprintf (fout, "\treturn (%s%s);\n", ampr (proc->res_type), RESULT);
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| 	}
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|     }
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| }
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