/* @(#)rpc_clntout.c	1.2 87/11/24 3.9 RPCSRC */
/*
 * 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
 */

/*
 * rpc_clntout.c, Client-stub outputter for the RPC protocol compiler
 * Copyright (C) 1987, Sun Microsytsems, Inc.
 */
#include <afsconfig.h>
#include <afs/param.h>


#include <stdio.h>
#include <string.h>
#include "rpc_scan.h"
#include "rpc_parse.h"
#include "rpc_util.h"

#define DEFAULT_TIMEOUT 25	/* in seconds */

/* static prototypes */
static void write_program(definition * def);
static char *ampr(char *type);
static void printbody(proc_list * proc);

void
write_stubs(void)
{
    list *l;
    definition *def;

    f_print(fout, "\nstatic 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 void
write_program(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);
	    f_print(fout, "(argp, clnt)\n");
	    f_print(fout, "\t");
	    ptype(proc->arg_prefix, proc->arg_type, 1);
	    f_print(fout, "*argp;\n");
	    f_print(fout, "\tCLIENT *clnt;\n");
	    f_print(fout, "{\n");
	    printbody(proc);
	    f_print(fout, "}\n\n");
	}
    }
}

static char *
ampr(char *type)
{
    if (isvectordef(type, REL_ALIAS)) {
	return ("");
    } else {
	return ("&");
    }
}

static void
printbody(proc_list * proc)
{
    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, "res;\n");
    f_print(fout, "\n");
    f_print(fout, "\tmemset(%sres, 0, sizeof(res));\n", ampr(proc->res_type));
    f_print(fout,
	    "\tif (clnt_call(clnt, %s, xdr_%s, argp, xdr_%s, %sres, TIMEOUT) != RPC_SUCCESS) {\n",
	    proc->proc_name, stringfix(proc->arg_type),
	    stringfix(proc->res_type), ampr(proc->res_type));
    f_print(fout, "\t\treturn (NULL);\n");
    f_print(fout, "\t}\n");
    if (streq(proc->res_type, "void")) {
	f_print(fout, "\treturn ((void *)%sres);\n", ampr(proc->res_type));
    } else {
	f_print(fout, "\treturn (%sres);\n", ampr(proc->res_type));
    }
}
