1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
28 *
29 * $FreeBSD: head/usr.bin/rpcgen/rpc_sample.c 99979 2002-07-14 17:54:00Z alfred $
30 */
31
32/* #pragma ident "@(#)rpc_sample.c 1.9 94/04/25 SMI" */
33
34/*
35 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler
36 * Copyright (C) 1987, Sun Microsystems, Inc.
37 */
38
39#include <stdio.h>
40#include <string.h>
41#include "rpc_parse.h"
42#include "rpc_util.h"
43
44
45static char RQSTP[] = "rqstp";
46
47extern void printarglist( proc_list *, char *, char *, char *);
48static void write_sample_client( char *, version_list * );
49static void write_sample_server( definition * );
50static void return_type( proc_list * );
51
52void
53write_sample_svc(def)
54 definition *def;
55{
56
57 if (def->def_kind != DEF_PROGRAM)
58 return;
59 write_sample_server(def);
60}
61
62
63int
64write_sample_clnt(def)
65 definition *def;
66{
67 version_list *vp;
68 int count = 0;
69
70 if (def->def_kind != DEF_PROGRAM)
71 return(0);
72 /* generate sample code for each version */
73 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
74 write_sample_client(def->def_name, vp);
75 ++count;
76 }
77 return(count);
78}
79
80
81static void
82write_sample_client(program_name, vp)
83 char *program_name;
84 version_list *vp;
85{
86 proc_list *proc;
87 int i;
88 decl_list *l;
89
90 f_print(fout, "\n\nvoid\n");
91 pvname(program_name, vp->vers_num);
92 if(Cflag)
93 f_print(fout,"(char *host)\n{\n");
94 else
95 f_print(fout, "(host)\n\tchar *host;\n{\n");
96 f_print(fout, "\tCLIENT *clnt;\n");
97
98 i = 0;
99 for (proc = vp->procs; proc != NULL; proc = proc->next) {
100 f_print(fout, "\t");
101 if (mtflag) {
102 f_print(fout, "enum clnt_stat retval_%d;\n\t", ++i);
103 ptype(proc->res_prefix, proc->res_type, 1);
104 f_print(fout, "result_%d;\n", i);
105 } else {
106 ptype(proc->res_prefix, proc->res_type, 1);
107 f_print(fout, " *result_%d;\n",++i);
108 }
109 /* print out declarations for arguments */
110 if(proc->arg_num < 2 && !newstyle) {
111 f_print(fout, "\t");
112 if(!streq(proc->args.decls->decl.type, "void"))
113 ptype(proc->args.decls->decl.prefix,
114 proc->args.decls->decl.type, 1);
115 else
116 f_print(fout, "char * "); /* cannot have "void" type */
117 f_print(fout, " ");
118 pvname(proc->proc_name, vp->vers_num);
119 f_print(fout, "_arg;\n");
120 } else if (!streq(proc->args.decls->decl.type, "void")) {
121 for (l = proc->args.decls; l != NULL; l = l->next) {
122 f_print(fout, "\t");
123 ptype(l->decl.prefix, l->decl.type, 1);
124 if (strcmp(l->decl.type,"string") == 1)
125 f_print(fout, " ");
126 pvname(proc->proc_name, vp->vers_num);
127 f_print(fout, "_%s;\n", l->decl.name);
128 }
129 }
130 }
131
132 /* generate creation of client handle */
133 f_print(fout, "\n#ifndef\tDEBUG\n");
134 f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n",
135 program_name, vp->vers_name, tirpcflag? "netpath" : "udp");
136 f_print(fout, "\tif (clnt == (CLIENT *) NULL) {\n");
137 f_print(fout, "\t\tclnt_pcreateerror(host);\n");
138 f_print(fout, "\t\texit(1);\n\t}\n");
139 f_print(fout, "#endif\t/* DEBUG */\n\n");
140
141 /* generate calls to procedures */
142 i = 0;
143 for (proc = vp->procs; proc != NULL; proc = proc->next) {
144 if (mtflag)
145 f_print(fout, "\tretval_%d = ",++i);
146 else
147 f_print(fout, "\tresult_%d = ",++i);
148 pvname(proc->proc_name, vp->vers_num);
149 if (proc->arg_num < 2 && !newstyle) {
150 f_print(fout, "(");
151 if(streq(proc->args.decls->decl.type, "void"))
152 /* cast to void * */
153 f_print(fout, "(void *)");
154 f_print(fout, "&");
155 pvname(proc->proc_name, vp->vers_num);
156 if (mtflag)
157 f_print(fout, "_arg, &result_%d, clnt);\n",
158 i);
159 else
160 f_print(fout, "_arg, clnt);\n");
161
162 } else if (streq(proc->args.decls->decl.type, "void")) {
163 if (mtflag)
164 f_print(fout, "(&result_%d, clnt);\n", i);
165 else
166 f_print(fout, "(clnt);\n");
167 }
168 else {
169 f_print(fout, "(");
170 for (l = proc->args.decls; l != NULL; l = l->next) {
171 pvname(proc->proc_name, vp->vers_num);
172 f_print(fout, "_%s, ", l->decl.name);
173 }
174 if (mtflag)
175 f_print(fout, "&result_%d, ", i);
176
177 f_print(fout, "clnt);\n");
178 }
179 if (mtflag) {
180 f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i);
181
182 } else {
183 f_print(fout, "\tif (result_%d == (", i);
184 ptype(proc->res_prefix, proc->res_type, 1);
185 f_print(fout, "*) NULL) {\n");
186 }
187 f_print(fout, "\t\tclnt_perror(clnt, \"call failed\");\n");
188 f_print(fout, "\t}\n");
189 }
190
191 f_print(fout, "#ifndef\tDEBUG\n");
192 f_print(fout, "\tclnt_destroy(clnt);\n");
193 f_print(fout, "#endif\t /* DEBUG */\n");
194 f_print(fout, "}\n");
195}
196
197static void
198write_sample_server(def)
199 definition *def;
200{
201 version_list *vp;
202 proc_list *proc;
203
204 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
205 for (proc = vp->procs; proc != NULL; proc = proc->next) {
206 f_print(fout, "\n");
207 if (!mtflag) {
208 return_type(proc);
209 f_print(fout, "*\n");
210 } else
211 f_print(fout, "bool_t\n");
212 if (Cflag || mtflag)
213 pvname_svc(proc->proc_name, vp->vers_num);
214 else
215 pvname(proc->proc_name, vp->vers_num);
216 printarglist(proc, "result", RQSTP, "struct svc_req *");
217
218 f_print(fout, "{\n");
219 if (!mtflag) {
220 f_print(fout, "\tstatic ");
221 if(!streq(proc->res_type, "void"))
222 return_type(proc);
223 else
224 f_print(fout, "char *");
225 /* cannot have void type */
226 f_print(fout, " result;\n");
227 }
228 else
229 f_print(fout, "\tbool_t retval;\n");
230 f_print(fout,
231 "\n\t/*\n\t * insert server code here\n\t */\n\n");
232
233 if (!mtflag)
234 if(!streq(proc->res_type, "void"))
235 f_print(fout, "\treturn (&result);\n}\n");
236 else /* cast back to void * */
237 f_print(fout, "\treturn((void *) &result);\n}\n");
238 else
239 f_print(fout, "\treturn (retval);\n}\n");
240 }
241 /* put in sample freeing routine */
242 if (mtflag) {
243 f_print(fout, "\nint\n");
244 pvname(def->def_name, vp->vers_num);
245 if (Cflag)
246 f_print(fout,"_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)\n");
247 else {
248 f_print(fout,"_freeresult(transp, xdr_result, result)\n");
249 f_print(fout,"\tSVCXPRT *transp;\n");
250 f_print(fout,"\txdrproc_t xdr_result;\n");
251 f_print(fout,"\tcaddr_t result;\n");
252 }
253 f_print(fout, "{\n");
254 f_print(fout, "\t(void) xdr_free(xdr_result, result);\n");
255 f_print(fout,
256 "\n\t/*\n\t * Insert additional freeing code here, if needed\n\t */\n");
257 f_print(fout, "\n}\n");
258
259
260 }
261 }
262}
263
264
265
266static void
267return_type(plist)
268 proc_list *plist;
269{
270 ptype(plist->res_prefix, plist->res_type, 1);
271}
272
273void
274add_sample_msg()
275{
276 f_print(fout, "/*\n");
277 f_print(fout, " * This is sample code generated by rpcgen.\n");
278 f_print(fout, " * These are only templates and you can use them\n");
279 f_print(fout, " * as a guideline for developing your own functions.\n");
280 f_print(fout, " */\n\n");
281}
282
283void
284write_sample_clnt_main()
285{
286 list *l;
287 definition *def;
288 version_list *vp;
289
290 f_print(fout, "\n\n");
291 if(Cflag)
292 f_print(fout,"main(int argc, char *argv[])\n{\n");
293 else
294 f_print(fout, "main(argc, argv)\n\tint argc;\n\tchar *argv[];\n{\n");
295
296 f_print(fout, "\tchar *host;");
297 f_print(fout, "\n\n\tif (argc < 2) {");
298 f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n");
299 f_print(fout, "\t\texit(1);\n\t}");
300 f_print(fout, "\n\thost = argv[1];\n");
301
302 for (l = defined; l != NULL; l = l->next) {
303 def = l->val;
304 if (def->def_kind != DEF_PROGRAM) {
305 continue;
306 }
307 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
308 f_print(fout, "\t");
309 pvname(def->def_name, vp->vers_num);
310 f_print(fout, "(host);\n");
311 }
312 }
313 f_print(fout, "}\n");
314}