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			608 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			608 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * From: @(#)rpc_hout.c 1.12 89/02/22
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|  *
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|  * Copyright (c) 2010, Oracle America, Inc.
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions are
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|  * met:
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|  *
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|  *     * Redistributions of source code must retain the above copyright
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|  *       notice, this list of conditions and the following disclaimer.
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|  *     * Redistributions in binary form must reproduce the above
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|  *       copyright notice, this list of conditions and the following
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|  *       disclaimer in the documentation and/or other materials
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|  *       provided with the distribution.
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|  *     * Neither the name of the "Oracle America, Inc." nor the names of its
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|  *       contributors may be used to endorse or promote products derived
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|  *       from this software without specific prior written permission.
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|  *
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|  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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|  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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|  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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|  *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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|  *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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|  *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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|  *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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|  *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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|  *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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|  *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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|  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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|  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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|  */
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| 
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| /*
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|  * rpc_hout.c, Header file outputter for the RPC protocol compiler
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|  */
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| #include <stdio.h>
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| #include <ctype.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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| static void pconstdef (definition * def);
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| static void pargdef (definition * def);
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| static void pstructdef (definition * def);
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| static void puniondef (definition * def);
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| static void pdefine (const char *name, const char *num);
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| static int define_printed (proc_list * stop, version_list * start);
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| static void pprogramdef (definition * def);
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| static void parglist (proc_list * proc, const char *addargtype);
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| static void penumdef (definition * def);
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| static void ptypedef (definition * def);
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| static int undefined2 (const char *type, const char *stop);
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| 
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| /* store away enough information to allow the XDR functions to be spat
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|     out at the end of the file */
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| 
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| static void
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| storexdrfuncdecl (const char *name, int pointerp)
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| {
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|   xdrfunc * xdrptr;
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| 
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|   xdrptr = (xdrfunc *) malloc(sizeof (struct xdrfunc));
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| 
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|   xdrptr->name = (char *)name;
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|   xdrptr->pointerp = pointerp;
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|   xdrptr->next = NULL;
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| 
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|   if (xdrfunc_tail == NULL)
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|     {
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|       xdrfunc_head = xdrptr;
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|       xdrfunc_tail = xdrptr;
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|     }
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|   else
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|     {
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|       xdrfunc_tail->next = xdrptr;
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|       xdrfunc_tail = xdrptr;
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|     }
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| }
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| 
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| /*
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|  * Print the C-version of an xdr definition
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|  */
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| void
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| print_datadef (definition *def)
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| {
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| 
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|   if (def->def_kind == DEF_PROGRAM)	/* handle data only */
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|     return;
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| 
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|   if (def->def_kind != DEF_CONST)
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|     {
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|       f_print (fout, "\n");
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|     }
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|   switch (def->def_kind)
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|     {
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|     case DEF_STRUCT:
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|       pstructdef (def);
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|       break;
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|     case DEF_UNION:
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|       puniondef (def);
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|       break;
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|     case DEF_ENUM:
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|       penumdef (def);
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|       break;
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|     case DEF_TYPEDEF:
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|       ptypedef (def);
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|       break;
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|     case DEF_PROGRAM:
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|       pprogramdef (def);
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|       break;
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|     case DEF_CONST:
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|       pconstdef (def);
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|       break;
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|     }
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|   if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST)
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|     {
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|       storexdrfuncdecl(def->def_name,
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|  		       def->def_kind != DEF_TYPEDEF ||
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| 		       !isvectordef(def->def.ty.old_type,
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| 				    def->def.ty.rel));
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|     }
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| }
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| 
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| 
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| void
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| print_funcdef (definition *def)
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| {
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|   switch (def->def_kind)
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|     {
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|     case DEF_PROGRAM:
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|       f_print (fout, "\n");
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|       pprogramdef (def);
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|       break;
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|     default:
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|       break;
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|       /* ?... shouldn't happen I guess */
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|     }
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| }
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| 
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| void
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| print_xdr_func_def (char *name, int pointerp, int i)
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| {
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|   if (i == 2)
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|     {
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|       f_print (fout, "extern bool_t xdr_%s ();\n", name);
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|       return;
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|     }
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|   else
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|     f_print(fout, "extern  bool_t xdr_%s (XDR *, %s%s);\n", name,
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| 	    name, pointerp ? "*" : "");
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| }
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| 
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| static void
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| pconstdef (definition *def)
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| {
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|   pdefine (def->def_name, def->def.co);
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| }
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| 
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| /* print out the definitions for the arguments of functions in the
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|    header file
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|  */
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| static void
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| pargdef (definition * def)
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| {
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|   decl_list *l;
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|   version_list *vers;
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|   const char *name;
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|   proc_list *plist;
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| 
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|   for (vers = def->def.pr.versions; vers != NULL; vers = vers->next)
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|     {
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|       for (plist = vers->procs; plist != NULL;
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| 	   plist = plist->next)
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| 	{
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| 
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| 	  if (!newstyle || plist->arg_num < 2)
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| 	    {
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| 	      continue;		/* old style or single args */
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| 	    }
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| 	  name = plist->args.argname;
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| 	  f_print (fout, "struct %s {\n", name);
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| 	  for (l = plist->args.decls;
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| 	       l != NULL; l = l->next)
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| 	    {
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| 	      pdeclaration (name, &l->decl, 1, ";\n");
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| 	    }
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| 	  f_print (fout, "};\n");
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| 	  f_print (fout, "typedef struct %s %s;\n", name, name);
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| 	  storexdrfuncdecl (name, 1);
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| 	  f_print (fout, "\n");
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| 	}
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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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| pstructdef (definition *def)
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| {
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|   decl_list *l;
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|   const char *name = def->def_name;
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| 
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|   f_print (fout, "struct %s {\n", name);
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|   for (l = def->def.st.decls; l != NULL; l = l->next)
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|     {
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|       pdeclaration (name, &l->decl, 1, ";\n");
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|     }
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|   f_print (fout, "};\n");
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|   f_print (fout, "typedef struct %s %s;\n", name, name);
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| }
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| 
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| static void
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| puniondef (definition *def)
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| {
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|   case_list *l;
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|   const char *name = def->def_name;
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|   declaration *decl;
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| 
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|   f_print (fout, "struct %s {\n", name);
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|   decl = &def->def.un.enum_decl;
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|   if (streq (decl->type, "bool"))
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|     {
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|       f_print (fout, "\tbool_t %s;\n", decl->name);
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|     }
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|   else
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|     {
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|       f_print (fout, "\t%s %s;\n", decl->type, decl->name);
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|     }
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|   f_print (fout, "\tunion {\n");
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|   for (l = def->def.un.cases; l != NULL; l = l->next)
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|     {
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|       if (l->contflag == 0)
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| 	pdeclaration (name, &l->case_decl, 2, ";\n");
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|     }
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|   decl = def->def.un.default_decl;
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|   if (decl && !streq (decl->type, "void"))
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|     {
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|       pdeclaration (name, decl, 2, ";\n");
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|     }
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|   f_print (fout, "\t} %s_u;\n", name);
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|   f_print (fout, "};\n");
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|   f_print (fout, "typedef struct %s %s;\n", name, name);
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| }
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| 
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| static void
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| pdefine (const char *name, const char *num)
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| {
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|   f_print (fout, "#define %s %s\n", name, num);
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| }
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| 
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| static int
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| define_printed (proc_list *stop, version_list *start)
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| {
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|   version_list *vers;
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|   proc_list *proc;
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| 
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|   for (vers = start; vers != NULL; vers = vers->next)
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|     {
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|       for (proc = vers->procs; proc != NULL; proc = proc->next)
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| 	{
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| 	  if (proc == stop)
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| 	    {
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| 	      return 0;
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| 	    }
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| 	  else if (streq (proc->proc_name, stop->proc_name))
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| 	    {
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| 	      return 1;
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| 	    }
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| 	}
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|     }
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|   abort ();
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|   /* NOTREACHED */
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| }
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| 
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| static void
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| pfreeprocdef (const char *name, const char *vers, int mode)
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| {
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|   f_print (fout, "extern int ");
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|   pvname (name, vers);
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|   if (mode == 1)
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|     f_print (fout,"_freeresult (SVCXPRT *, xdrproc_t, caddr_t);\n");
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|   else
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|     f_print (fout,"_freeresult ();\n");
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| }
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| 
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| static void
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| pprogramdef (definition *def)
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| {
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|   version_list *vers;
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|   proc_list *proc;
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|   int i;
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|   const char *ext;
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| 
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|   pargdef (def);
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| 
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|   pdefine (def->def_name, def->def.pr.prog_num);
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|   for (vers = def->def.pr.versions; vers != NULL; vers = vers->next)
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|     {
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|       if (tblflag)
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| 	{
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| 	  f_print (fout, "extern struct rpcgen_table %s_%s_table[];\n",
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| 		   locase (def->def_name), vers->vers_num);
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| 	  f_print (fout, "extern %s_%s_nproc;\n",
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| 		   locase (def->def_name), vers->vers_num);
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| 	}
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|       pdefine (vers->vers_name, vers->vers_num);
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| 
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|       /*
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|        * Print out 2 definitions, one for ANSI-C, another for
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|        * old K & R C
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|        */
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| 
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|       if(!Cflag)
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| 	{
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| 	  ext = "extern  ";
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| 	  for (proc = vers->procs; proc != NULL;
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| 	       proc = proc->next)
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| 	    {
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| 	      if (!define_printed(proc, def->def.pr.versions))
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| 		{
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| 		  pdefine (proc->proc_name, proc->proc_num);
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| 		}
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| 	      f_print (fout, "%s", ext);
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| 	      pprocdef (proc, vers, NULL, 0, 2);
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| 
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| 	      if (mtflag)
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| 		{
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| 		  f_print(fout, "%s", ext);
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| 		  pprocdef (proc, vers, NULL, 1, 2);
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| 		}
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| 	    }
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| 	  pfreeprocdef (def->def_name, vers->vers_num, 2);
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| 	}
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|       else
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| 	{
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| 	  for (i = 1; i < 3; i++)
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| 	    {
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| 	      if (i == 1)
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| 		{
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| 		  f_print (fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n");
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| 		  ext = "extern  ";
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| 		}
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| 	      else
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| 		{
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| 		  f_print (fout, "\n#else /* K&R C */\n");
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| 		  ext = "extern  ";
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| 		}
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| 
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| 	      for (proc = vers->procs; proc != NULL; proc = proc->next)
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| 		{
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| 		  if (!define_printed(proc, def->def.pr.versions))
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| 		    {
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| 		      pdefine(proc->proc_name, proc->proc_num);
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| 		    }
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| 		  f_print (fout, "%s", ext);
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| 		  pprocdef (proc, vers, "CLIENT *", 0, i);
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| 		  f_print (fout, "%s", ext);
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| 		  pprocdef (proc, vers, "struct svc_req *", 1, i);
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| 		}
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| 	      pfreeprocdef (def->def_name, vers->vers_num, i);
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| 	    }
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| 	  f_print (fout, "#endif /* K&R C */\n");
 | |
| 	}
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|     }
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| }
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| 
 | |
| void
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| pprocdef (proc_list * proc, version_list * vp,
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| 	  const char *addargtype, int server_p, int mode)
 | |
| {
 | |
|   if (mtflag)
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|     {/* Print MT style stubs */
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|       if (server_p)
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| 	f_print (fout, "bool_t ");
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|       else
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| 	f_print (fout, "enum clnt_stat ");
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|     }
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|   else
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|     {
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|       ptype (proc->res_prefix, proc->res_type, 1);
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|       f_print (fout, "* ");
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|     }
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|   if (server_p)
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|     pvname_svc (proc->proc_name, vp->vers_num);
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|   else
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|     pvname (proc->proc_name, vp->vers_num);
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| 
 | |
|   /*
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|    * mode  1 = ANSI-C, mode 2 = K&R C
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|    */
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|   if (mode == 1)
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|     parglist (proc, addargtype);
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|   else
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|     f_print (fout, "();\n");
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| }
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| 
 | |
| /* print out argument list of procedure */
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| static void
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| parglist (proc_list *proc, const char *addargtype)
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| {
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|   decl_list *dl;
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| 
 | |
|   f_print(fout,"(");
 | |
|   if (proc->arg_num < 2 && newstyle &&
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|       streq (proc->args.decls->decl.type, "void"))
 | |
|     {
 | |
|       /* 0 argument in new style:  do nothing */
 | |
|     }
 | |
|   else
 | |
|     {
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|       for (dl = proc->args.decls; dl != NULL; dl = dl->next)
 | |
| 	{
 | |
| 	  ptype (dl->decl.prefix, dl->decl.type, 1);
 | |
| 	  if (!newstyle)
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| 	    f_print (fout, "*");	/* old style passes by reference */
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| 
 | |
| 	  f_print (fout, ", ");
 | |
| 	}
 | |
|     }
 | |
|   if (mtflag)
 | |
|     {
 | |
|       ptype(proc->res_prefix, proc->res_type, 1);
 | |
|       f_print(fout, "*, ");
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|     }
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| 
 | |
|   f_print (fout, "%s);\n", addargtype);
 | |
| }
 | |
| 
 | |
| static void
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| penumdef (definition *def)
 | |
| {
 | |
|   const char *name = def->def_name;
 | |
|   enumval_list *l;
 | |
|   const char *last = NULL;
 | |
|   int count = 0;
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| 
 | |
|   f_print (fout, "enum %s {\n", name);
 | |
|   for (l = def->def.en.vals; l != NULL; l = l->next)
 | |
|     {
 | |
|       f_print (fout, "\t%s", l->name);
 | |
|       if (l->assignment)
 | |
| 	{
 | |
| 	  f_print (fout, " = %s", l->assignment);
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| 	  last = l->assignment;
 | |
| 	  count = 1;
 | |
| 	}
 | |
|       else
 | |
| 	{
 | |
| 	  if (last == NULL)
 | |
| 	    {
 | |
| 	      f_print (fout, " = %d", count++);
 | |
| 	    }
 | |
| 	  else
 | |
| 	    {
 | |
| 	      f_print (fout, " = %s + %d", last, count++);
 | |
| 	    }
 | |
| 	}
 | |
|       f_print (fout, ",\n");
 | |
|     }
 | |
|   f_print (fout, "};\n");
 | |
|   f_print (fout, "typedef enum %s %s;\n", name, name);
 | |
| }
 | |
| 
 | |
| static void
 | |
| ptypedef (definition *def)
 | |
| {
 | |
|   const char *name = def->def_name;
 | |
|   const char *old = def->def.ty.old_type;
 | |
|   char prefix[8];	  /* enough to contain "struct ", including NUL */
 | |
|   relation rel = def->def.ty.rel;
 | |
| 
 | |
|   if (!streq (name, old))
 | |
|     {
 | |
|       if (streq (old, "string"))
 | |
| 	{
 | |
| 	  old = "char";
 | |
| 	  rel = REL_POINTER;
 | |
| 	}
 | |
|       else if (streq (old, "opaque"))
 | |
| 	{
 | |
| 	  old = "char";
 | |
| 	}
 | |
|       else if (streq (old, "bool"))
 | |
| 	{
 | |
| 	  old = "bool_t";
 | |
| 	}
 | |
|       if (undefined2 (old, name) && def->def.ty.old_prefix)
 | |
| 	{
 | |
| 	  s_print (prefix, "%s ", def->def.ty.old_prefix);
 | |
| 	}
 | |
|       else
 | |
| 	{
 | |
| 	  prefix[0] = 0;
 | |
| 	}
 | |
|       f_print (fout, "typedef ");
 | |
|       switch (rel)
 | |
| 	{
 | |
| 	case REL_ARRAY:
 | |
| 	  f_print (fout, "struct {\n");
 | |
| 	  f_print (fout, "\tu_int %s_len;\n", name);
 | |
| 	  f_print (fout, "\t%s%s *%s_val;\n", prefix, old, name);
 | |
| 	  f_print (fout, "} %s", name);
 | |
| 	  break;
 | |
| 	case REL_POINTER:
 | |
| 	  f_print (fout, "%s%s *%s", prefix, old, name);
 | |
| 	  break;
 | |
| 	case REL_VECTOR:
 | |
| 	  f_print (fout, "%s%s %s[%s]", prefix, old, name,
 | |
| 		   def->def.ty.array_max);
 | |
| 	  break;
 | |
| 	case REL_ALIAS:
 | |
| 	  f_print (fout, "%s%s %s", prefix, old, name);
 | |
| 	  break;
 | |
| 	}
 | |
|       f_print (fout, ";\n");
 | |
|     }
 | |
| }
 | |
| 
 | |
| void
 | |
| pdeclaration (const char *name, declaration * dec, int tab,
 | |
| 	      const char *separator)
 | |
| {
 | |
|   char buf[8];			/* enough to hold "struct ", include NUL */
 | |
|   const char *prefix;
 | |
|   const char *type;
 | |
| 
 | |
|   if (streq (dec->type, "void"))
 | |
|     {
 | |
|       return;
 | |
|     }
 | |
|   tabify (fout, tab);
 | |
|   if (streq (dec->type, name) && !dec->prefix)
 | |
|     {
 | |
|       f_print (fout, "struct ");
 | |
|     }
 | |
|   if (streq (dec->type, "string"))
 | |
|     {
 | |
|       f_print (fout, "char *%s", dec->name);
 | |
|     }
 | |
|   else
 | |
|     {
 | |
|       prefix = "";
 | |
|       if (streq (dec->type, "bool"))
 | |
| 	{
 | |
| 	  type = "bool_t";
 | |
| 	}
 | |
|       else if (streq (dec->type, "opaque"))
 | |
| 	{
 | |
| 	  type = "char";
 | |
| 	}
 | |
|       else
 | |
| 	{
 | |
| 	  if (dec->prefix)
 | |
| 	    {
 | |
| 	      s_print (buf, "%s ", dec->prefix);
 | |
| 	      prefix = buf;
 | |
| 	    }
 | |
| 	  type = dec->type;
 | |
| 	}
 | |
|       switch (dec->rel)
 | |
| 	{
 | |
| 	case REL_ALIAS:
 | |
| 	  f_print (fout, "%s%s %s", prefix, type, dec->name);
 | |
| 	  break;
 | |
| 	case REL_VECTOR:
 | |
| 	  f_print (fout, "%s%s %s[%s]", prefix, type, dec->name,
 | |
| 		   dec->array_max);
 | |
| 	  break;
 | |
| 	case REL_POINTER:
 | |
| 	  f_print (fout, "%s%s *%s", prefix, type, dec->name);
 | |
| 	  break;
 | |
| 	case REL_ARRAY:
 | |
| 	  f_print (fout, "struct {\n");
 | |
| 	  tabify (fout, tab);
 | |
| 	  f_print (fout, "\tu_int %s_len;\n", dec->name);
 | |
| 	  tabify (fout, tab);
 | |
| 	  f_print (fout, "\t%s%s *%s_val;\n", prefix, type, dec->name);
 | |
| 	  tabify (fout, tab);
 | |
| 	  f_print (fout, "} %s", dec->name);
 | |
| 	  break;
 | |
| 	}
 | |
|     }
 | |
|   f_print (fout, "%s", separator);
 | |
| }
 | |
| 
 | |
| static int
 | |
| undefined2 (const char *type, const char *stop)
 | |
| {
 | |
|   list *l;
 | |
|   definition *def;
 | |
| 
 | |
|   for (l = defined; l != NULL; l = l->next)
 | |
|     {
 | |
|       def = (definition *) l->val;
 | |
|       if (def->def_kind != DEF_PROGRAM)
 | |
| 	{
 | |
| 	  if (streq (def->def_name, stop))
 | |
| 	    {
 | |
| 	      return 1;
 | |
| 	    }
 | |
| 	  else if (streq (def->def_name, type))
 | |
| 	    {
 | |
| 	      return 0;
 | |
| 	    }
 | |
| 	}
 | |
|     }
 | |
|   return 1;
 | |
| }
 |