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/*
* Copyright (c) 2009, Sun Microsystems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#if 0
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"
#include "rpc_output.h"
/* extern pdeclaration(); */
/* void printarglist(); */
#define DEFAULT_TIMEOUT 25 /* in seconds */
static char RESULT[] = "clnt_res";
static void write_program(definition *def);
static void printbody(proc_list *proc);
void
write_stubs(void)
{
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 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);
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_list *proc, char *addargname, char *addargtype)
{
decl_list *l;
if (!newstyle) { /* old style: always pass arg 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(char *type)
{
if (isvectordef(type, REL_ALIAS)) {
return ("");
} else {
return ("&");
}
}
static void
printbody(proc_list *proc)
{
decl_list *l;
bool_t args2 = (proc->arg_num > 1);
/* 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, (xdrproc_t) xdr_void, (caddr_t) NULL, "
"(xdrproc_t) xdr_%s, (caddr_t) %s%s, TIMEOUT) != RPC_SUCCESS) {\n",
proc->proc_name,
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, (xdrproc_t) xdr_%s, (caddr_t) &arg, "
"(xdrproc_t) xdr_%s, (caddr_t) %s%s, TIMEOUT) != RPC_SUCCESS) {\n",
proc->proc_name, proc->args.argname,
stringfix(proc->res_type), ampr(proc->res_type), RESULT);
} else { /* single argument, new or old style */
f_print(fout,
"\tif (clnt_call(clnt, %s, (xdrproc_t) xdr_%s, "
"(caddr_t) %s%s, (xdrproc_t) xdr_%s, (caddr_t) %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);
}
}
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