OpenSolaris_b135/cmd/rpcgen/rpc_sample.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
/*
* rpc_sample.c, Sample client-server code outputter
* for the RPC protocol compiler
*/
#include <stdio.h>
#include <string.h>
#include "rpc_parse.h"
#include "rpc_util.h"
static char RQSTP[] = "rqstp";
extern void printarglist(proc_list *, char *, char *, char *);
static void write_sample_client(char *, version_list *);
static void write_sample_server(definition *);
static void return_type(proc_list *);
void
write_sample_svc(definition *def)
{
if (def->def_kind != DEF_PROGRAM)
return;
write_sample_server(def);
}
int
write_sample_clnt(definition *def)
{
version_list *vp;
int count = 0;
if (def->def_kind != DEF_PROGRAM)
return (0);
/* generate sample code for each version */
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
write_sample_client(def->def_name, vp);
++count;
}
return (count);
}
static void
write_sample_client(char *program_name, version_list *vp)
{
proc_list *proc;
int i;
decl_list *l;
f_print(fout, "\n\nvoid\n");
pvname(program_name, vp->vers_num);
if (Cflag)
f_print(fout, "(char *host)\n{\n");
else
f_print(fout, "(host)\n\tchar *host;\n{\n");
f_print(fout, "\tCLIENT *clnt;\n");
i = 0;
for (proc = vp->procs; proc != NULL; proc = proc->next) {
f_print(fout, "\t");
if (mtflag) {
f_print(fout, "enum clnt_stat retval_%d;\n", ++i);
if (!streq(proc->res_type, "oneway")) {
f_print(fout, "\t");
if (!streq(proc->res_type, "void"))
ptype(proc->res_prefix,
proc->res_type, 1);
else
f_print(fout, "void *");
f_print(fout, "result_%d;\n", i);
}
} else {
ptype(proc->res_prefix, proc->res_type, 1);
f_print(fout, " *result_%d;\n", ++i);
}
/* print out declarations for arguments */
if (proc->arg_num < 2 && !newstyle) {
f_print(fout, "\t");
if (!streq(proc->args.decls->decl.type, "void"))
ptype(proc->args.decls->decl.prefix,
proc->args.decls->decl.type, 1);
else
/* cannot have "void" type */
f_print(fout, "char * ");
f_print(fout, " ");
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "_arg;\n");
} else if (!streq(proc->args.decls->decl.type, "void")) {
for (l = proc->args.decls; l != NULL; l = l->next) {
f_print(fout, "\t");
ptype(l->decl.prefix, l->decl.type, 1);
if (strcmp(l->decl.type, "string") == 1)
f_print(fout, " ");
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "_%s;\n", l->decl.name);
}
}
}
/* generate creation of client handle */
f_print(fout, "\n#ifndef\tDEBUG\n");
f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n",
program_name, vp->vers_name, tirpcflag? "netpath" : "udp");
f_print(fout, "\tif (clnt == (CLIENT *) NULL) {\n");
f_print(fout, "\t\tclnt_pcreateerror(host);\n");
f_print(fout, "\t\texit(1);\n\t}\n");
f_print(fout, "#endif\t/* DEBUG */\n\n");
/* generate calls to procedures */
i = 0;
for (proc = vp->procs; proc != NULL; proc = proc->next) {
if (mtflag)
f_print(fout, "\tretval_%d = ", ++i);
else
f_print(fout, "\tresult_%d = ", ++i);
pvname(proc->proc_name, vp->vers_num);
if (proc->arg_num < 2 && !newstyle) {
f_print(fout, "(");
if (streq(proc->args.decls->decl.type, "void"))
/* cast to void * */
f_print(fout, "(void *)");
f_print(fout, "&");
pvname(proc->proc_name, vp->vers_num);
if (mtflag) {
if (streq(proc->res_type, "oneway"))
f_print(fout, "_arg, clnt);\n");
else
f_print(fout,
"_arg, &result_%d, clnt);\n", i);
} else
f_print(fout, "_arg, clnt);\n");
} else if (streq(proc->args.decls->decl.type, "void")) {
if (mtflag) {
if (streq(proc->res_type, "oneway"))
f_print(fout, "(clnt);\n");
else
f_print(fout,
"(&result_%d, clnt);\n", i);
} else
f_print(fout, "(clnt);\n");
} else {
f_print(fout, "(");
for (l = proc->args.decls; l != NULL; l = l->next) {
pvname(proc->proc_name, vp->vers_num);
f_print(fout, "_%s, ", l->decl.name);
}
if (mtflag) {
if (!streq(proc->res_type, "oneway"))
f_print(fout, "&result_%d, ", i);
}
f_print(fout, "clnt);\n");
}
if (mtflag) {
f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i);
} else {
f_print(fout, "\tif (result_%d == (", i);
ptype(proc->res_prefix, proc->res_type, 1);
f_print(fout, "*) NULL) {\n");
}
f_print(fout, "\t\tclnt_perror(clnt, \"call failed\");\n");
f_print(fout, "\t}\n");
}
f_print(fout, "#ifndef\tDEBUG\n");
f_print(fout, "\tclnt_destroy(clnt);\n");
f_print(fout, "#endif\t /* DEBUG */\n");
f_print(fout, "}\n");
}
static void
write_sample_server(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");
if (!mtflag) {
return_type(proc);
f_print(fout, "*\n");
} else {
f_print(fout, "bool_t\n");
}
if (Cflag || mtflag)
pvname_svc(proc->proc_name, vp->vers_num);
else
pvname(proc->proc_name, vp->vers_num);
printarglist(proc, "result", RQSTP, "struct svc_req *");
f_print(fout, "{\n");
if (!mtflag) {
f_print(fout, "\tstatic ");
if ((!streq(proc->res_type, "void")) &&
(!streq(proc->res_type, "oneway")))
return_type(proc);
else
f_print(fout, "char *");
/* cannot have void type */
f_print(fout, " result;\n");
}
f_print(fout, "\n\t/*\n\t * insert server code "
"here\n\t */\n\n");
if (!mtflag)
if (!streq(proc->res_type, "void"))
f_print(fout,
"\treturn (&result);\n}\n");
else /* cast back to void * */
f_print(fout, "\treturn((void *) "
"&result);\n}\n");
else
f_print(fout, "\treturn (retval);\n}\n");
}
/* put in sample freeing routine */
if (mtflag) {
f_print(fout, "\nint\n");
pvname(def->def_name, vp->vers_num);
if (Cflag)
f_print(fout, "_freeresult(SVCXPRT *transp,"
" xdrproc_t xdr_result,"
" caddr_t result)\n");
else {
f_print(fout, "_freeresult(transp, xdr_result,"
" result)\n");
f_print(fout, "\tSVCXPRT *transp;\n");
f_print(fout, "\txdrproc_t xdr_result;\n");
f_print(fout, "\tcaddr_t result;\n");
}
f_print(fout, "{\n"
"\t(void) xdr_free(xdr_result, result);\n"
"\n\t/*\n\t * Insert additional freeing"
" code here, if needed\n\t */\n"
"\n\n\treturn (TRUE);\n}\n");
}
}
}
static void
return_type(proc_list *plist)
{
ptype(plist->res_prefix, plist->res_type, 1);
}
void
add_sample_msg(void)
{
f_print(fout, "/*\n");
f_print(fout, " * This is sample code generated by rpcgen.\n");
f_print(fout, " * These are only templates and you can use them\n");
f_print(fout, " * as a guideline for developing your own functions.\n");
f_print(fout, " */\n\n");
}
void
write_sample_clnt_main(void)
{
list *l;
definition *def;
version_list *vp;
f_print(fout, "\n\n");
if (Cflag)
f_print(fout, "int\nmain(int argc, char *argv[])\n{\n");
else
f_print(fout, "int\nmain(argc, argv)\n\tint argc;\n"
"\tchar *argv[];\n{\n");
f_print(fout, "\tchar *host;");
f_print(fout, "\n\n\tif (argc < 2) {");
f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\","
" argv[0]);\n");
f_print(fout, "\t\texit(1);\n\t}");
f_print(fout, "\n\thost = argv[1];\n");
for (l = defined; l != NULL; l = l->next) {
def = l->val;
if (def->def_kind != DEF_PROGRAM)
continue;
for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
f_print(fout, "\t");
pvname(def->def_name, vp->vers_num);
f_print(fout, "(host);\n");
}
}
f_print(fout, "}\n");
}