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/*

 * 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 or with the express written consent of

 * Sun Microsystems, Inc.

 *

 * 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

 */

#ifndef lint

static char sccsid[] = "@(#)rpc_clntout.c 1.11 89/02/22 (C) 1987 SMI";

#endif

/*

 * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler

 * Copyright (C) 1987, Sun Microsytsems, Inc.

 */

#include <stdio.h>

#include <string.h>

#include "rpc/types.h"

#include "rpc_parse.h"

#include "rpc_util.h"

extern 	pdeclaration();

void 	printarglist();

#define DEFAULT_TIMEOUT 25	/* in seconds */

static char RESULT[] = "clnt_res";

void

write_stubs()

{

	list *l;

	definition *def;

	f_print(fout, 

		"\n/* Default timeout can be changed using clnt_control() */\n");

	f_print(fout, "static struct timeval TIMEOUT = { %d, 0 };\n",

		DEFAULT_TIMEOUT);

	for (l = defined; l != NULL; l = l->next) {

		def = (definition *) l->val;

		if (def->def_kind == DEF_PROGRAM) {

			write_program(def);

		}

	}

}

static

write_program(def)

	definition *def;

{

	version_list *vp;

	proc_list *proc;

	for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {

		for (proc = vp->procs; proc != NULL; proc = proc->next) {

			f_print(fout, "\n");

			ptype(proc->res_prefix, proc->res_type, 1);

			f_print(fout, "*\n");

			pvname(proc->proc_name, vp->vers_num);

			printarglist( proc, "clnt", "CLIENT *" );

			f_print(fout, "{\n");

			printbody(proc);

			f_print(fout, "}\n");

		}

	}

}

/* Writes out declarations of procedure's argument list.

   In either ANSI C style, in one of old rpcgen style (pass by reference),

   or new rpcgen style (multiple arguments, pass by value);

   */

/* sample addargname = "clnt"; sample addargtype = "CLIENT * " */

void printarglist( proc, addargname, addargtype )

     proc_list *proc;

     char* addargname, * addargtype;

{

  decl_list *l;

  if (!newstyle) {    /* old style: always pass argument by reference */

    if (Cflag) {      /* C++ style heading */

      f_print(fout, "(");

      ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1);

      f_print(fout, "*argp, %s%s)\n", addargtype, addargname );

    } else {

      f_print(fout, "(argp, %s)\n", addargname);

      f_print(fout, "\t");

      ptype(proc->args.decls->decl.prefix, proc->args.decls->decl.type, 1);

      f_print(fout, "*argp;\n");

    }

  } else if (streq( proc->args.decls->decl.type, "void")) { 

    /* newstyle, 0 argument */

    if( Cflag ) 

      f_print(fout, "(%s%s)\n", addargtype, addargname );

    else

      f_print(fout, "(%s)\n", addargname);

  } else {

    /* new style, 1 or multiple arguments */

    if( !Cflag ) {

      f_print(fout, "(");

      for (l = proc->args.decls;  l != NULL; l = l->next) 

	f_print(fout, "%s, ", l->decl.name);

      f_print(fout, "%s)\n", addargname );

      for (l = proc->args.decls; l != NULL; l = l->next) {

	pdeclaration(proc->args.argname, &l->decl, 1, ";\n" );

      }

    } else {  /* C++ style header */

      f_print(fout, "(");

      for(l = proc->args.decls; l != NULL; l = l->next) {

	pdeclaration(proc->args.argname, &l->decl, 0, ", " );

      }

      f_print(fout, " %s%s)\n", addargtype, addargname );

    }

  }

  if( !Cflag ) 

    f_print(fout, "\t%s%s;\n", addargtype, addargname );

}

static char *

ampr(type)

	char *type;

{

	if (isvectordef(type, REL_ALIAS)) {

		return ("");

	} else {

		return ("&");

	}

}

static

printbody(proc)

	proc_list *proc;

{

  decl_list *l;

  bool_t args2 = (proc->arg_num > 1);

  int i;

  /* For new style with multiple arguments, need a structure in which

     to stuff the arguments. */

	if ( newstyle && args2) {

		f_print(fout, "\t%s", proc->args.argname);

		f_print(fout, " arg;\n");	

	}

	f_print(fout, "\tstatic ");

	if (streq(proc->res_type, "void")) {

		f_print(fout, "char ");

	} else {

		ptype(proc->res_prefix, proc->res_type, 0);

	}

	f_print(fout, "%s;\n",RESULT);

	f_print(fout, "\n");

        f_print(fout, "\tmemset((char *)%s%s, 0, sizeof(%s));\n",

		ampr(proc->res_type ), RESULT, RESULT);

	if (newstyle && !args2 && (streq( proc->args.decls->decl.type, "void"))) {

	  /* newstyle, 0 arguments */

	  f_print(fout,

		    "\tif (clnt_call(clnt, %s, xdr_void", proc->proc_name);

	  f_print(fout, 

 		  ", NULL, xdr_%s, %s,%s, TIMEOUT) != RPC_SUCCESS) {\n",

 		  stringfix(proc->res_type), ampr(proc->res_type), RESULT);

	} else if ( newstyle && args2) {

	  /* newstyle, multiple arguments:  stuff arguments into structure */

	  for (l = proc->args.decls;  l != NULL; l = l->next) {

	    f_print(fout, "\targ.%s = %s;\n",

		    l->decl.name, l->decl.name);

	  }

	  f_print(fout,

		  "\tif (clnt_call(clnt, %s, xdr_%s", proc->proc_name,

		  proc->args.argname);

	  f_print(fout, 

 		      ", &arg, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n",

 		  stringfix(proc->res_type), ampr(proc->res_type), RESULT);

	} else {  /* single argument, new or old style */

	      f_print(fout,

 		      "\tif (clnt_call(clnt, %s, xdr_%s, %s%s, xdr_%s, %s%s, TIMEOUT) != RPC_SUCCESS) {\n",

		      proc->proc_name, 

		      stringfix(proc->args.decls->decl.type), 

		      (newstyle ? "&" : ""),

		      (newstyle ? proc->args.decls->decl.name : "argp"),

		      stringfix(proc->res_type), ampr(proc->res_type),RESULT);

	    }

	f_print(fout, "\t\treturn (NULL);\n");

	f_print(fout, "\t}\n");

	if (streq(proc->res_type, "void")) {

		f_print(fout, "\treturn ((void *)%s%s);\n", 

			ampr(proc->res_type),RESULT);

	} else {

		f_print(fout, "\treturn (%s%s);\n", ampr(proc->res_type),RESULT);

	}

}