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
30 /* #pragma ident "@(#)rpc_sample.c 1.9 94/04/25 SMI" */
31
32 #include <sys/cdefs.h>
33 /*
34 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler
35 * Copyright (C) 1987, Sun Microsystems, Inc.
36 */
37
38 #include <stdio.h>
39 #include <string.h>
40 #include "rpc_parse.h"
41 #include "rpc_scan.h"
42 #include "rpc_util.h"
43
44
45 static char RQSTP[] = "rqstp";
46
47 static void write_sample_client(const char *, version_list * );
48 static void write_sample_server( definition * );
49 static void return_type( proc_list * );
50
51 void
write_sample_svc(definition * def)52 write_sample_svc(definition *def)
53 {
54
55 if (def->def_kind != DEF_PROGRAM)
56 return;
57 write_sample_server(def);
58 }
59
60
61 int
write_sample_clnt(definition * def)62 write_sample_clnt(definition *def)
63 {
64 version_list *vp;
65 int count = 0;
66
67 if (def->def_kind != DEF_PROGRAM)
68 return(0);
69 /* generate sample code for each version */
70 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
71 write_sample_client(def->def_name, vp);
72 ++count;
73 }
74 return(count);
75 }
76
77
78 static void
write_sample_client(const char * program_name,version_list * vp)79 write_sample_client(const char *program_name, version_list *vp)
80 {
81 proc_list *proc;
82 int i;
83 decl_list *l;
84
85 f_print(fout, "\n\nvoid\n");
86 pvname(program_name, vp->vers_num);
87 f_print(fout, "(char *host)\n{\n");
88 f_print(fout, "\tCLIENT *clnt;\n");
89
90 i = 0;
91 for (proc = vp->procs; proc != NULL; proc = proc->next) {
92 f_print(fout, "\t");
93 if (mtflag) {
94 f_print(fout, "enum clnt_stat retval_%d;\n\t", ++i);
95 ptype(proc->res_prefix, proc->res_type, 1);
96 f_print(fout, "result_%d;\n", i);
97 } else {
98 ptype(proc->res_prefix, proc->res_type, 1);
99 f_print(fout, " *result_%d;\n",++i);
100 }
101 /* print out declarations for arguments */
102 if(proc->arg_num < 2 && !newstyle) {
103 f_print(fout, "\t");
104 if(!streq(proc->args.decls->decl.type, "void"))
105 ptype(proc->args.decls->decl.prefix,
106 proc->args.decls->decl.type, 1);
107 else
108 f_print(fout, "char * "); /* cannot have "void" type */
109 f_print(fout, " ");
110 pvname(proc->proc_name, vp->vers_num);
111 f_print(fout, "_arg;\n");
112 } else if (!streq(proc->args.decls->decl.type, "void")) {
113 for (l = proc->args.decls; l != NULL; l = l->next) {
114 f_print(fout, "\t");
115 ptype(l->decl.prefix, l->decl.type, 1);
116 if (strcmp(l->decl.type,"string") >= 1)
117 f_print(fout, " ");
118 pvname(proc->proc_name, vp->vers_num);
119 f_print(fout, "_%s;\n", l->decl.name);
120 }
121 }
122 }
123
124 /* generate creation of client handle */
125 f_print(fout, "\n#ifndef\tDEBUG\n");
126 f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n",
127 program_name, vp->vers_name, tirpcflag? "netpath" : "udp");
128 f_print(fout, "\tif (clnt == (CLIENT *) NULL) {\n");
129 f_print(fout, "\t\tclnt_pcreateerror(host);\n");
130 f_print(fout, "\t\texit(1);\n\t}\n");
131 f_print(fout, "#endif\t/* DEBUG */\n\n");
132
133 /* generate calls to procedures */
134 i = 0;
135 for (proc = vp->procs; proc != NULL; proc = proc->next) {
136 if (mtflag)
137 f_print(fout, "\tretval_%d = ",++i);
138 else
139 f_print(fout, "\tresult_%d = ",++i);
140 pvname(proc->proc_name, vp->vers_num);
141 if (proc->arg_num < 2 && !newstyle) {
142 f_print(fout, "(");
143 if(streq(proc->args.decls->decl.type, "void"))
144 /* cast to void * */
145 f_print(fout, "(void *)");
146 f_print(fout, "&");
147 pvname(proc->proc_name, vp->vers_num);
148 if (mtflag)
149 f_print(fout, "_arg, &result_%d, clnt);\n",
150 i);
151 else
152 f_print(fout, "_arg, clnt);\n");
153
154 } else if (streq(proc->args.decls->decl.type, "void")) {
155 if (mtflag)
156 f_print(fout, "(&result_%d, clnt);\n", i);
157 else
158 f_print(fout, "(clnt);\n");
159 }
160 else {
161 f_print(fout, "(");
162 for (l = proc->args.decls; l != NULL; l = l->next) {
163 pvname(proc->proc_name, vp->vers_num);
164 f_print(fout, "_%s, ", l->decl.name);
165 }
166 if (mtflag)
167 f_print(fout, "&result_%d, ", i);
168
169 f_print(fout, "clnt);\n");
170 }
171 if (mtflag) {
172 f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i);
173
174 } else {
175 f_print(fout, "\tif (result_%d == (", i);
176 ptype(proc->res_prefix, proc->res_type, 1);
177 f_print(fout, "*) NULL) {\n");
178 }
179 f_print(fout, "\t\tclnt_perror(clnt, \"call failed\");\n");
180 f_print(fout, "\t}\n");
181 }
182
183 f_print(fout, "#ifndef\tDEBUG\n");
184 f_print(fout, "\tclnt_destroy(clnt);\n");
185 f_print(fout, "#endif\t /* DEBUG */\n");
186 f_print(fout, "}\n");
187 }
188
189 static void
write_sample_server(definition * def)190 write_sample_server(definition *def)
191 {
192 version_list *vp;
193 proc_list *proc;
194
195 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
196 for (proc = vp->procs; proc != NULL; proc = proc->next) {
197 f_print(fout, "\n");
198 if (!mtflag) {
199 return_type(proc);
200 f_print(fout, "*\n");
201 } else
202 f_print(fout, "bool_t\n");
203 pvname_svc(proc->proc_name, vp->vers_num);
204 printarglist(proc, "result", RQSTP, "struct svc_req *");
205
206 f_print(fout, "{\n");
207 if (!mtflag) {
208 f_print(fout, "\tstatic ");
209 if(!streq(proc->res_type, "void"))
210 return_type(proc);
211 else
212 f_print(fout, "char *");
213 /* cannot have void type */
214 f_print(fout, " result;\n");
215 }
216 else
217 f_print(fout, "\tbool_t retval;\n");
218 f_print(fout,
219 "\n\t/*\n\t * insert server code here\n\t */\n\n");
220
221 if (!mtflag)
222 if(!streq(proc->res_type, "void"))
223 f_print(fout, "\treturn (&result);\n}\n");
224 else /* cast back to void * */
225 f_print(fout, "\treturn((void *) &result);\n}\n");
226 else
227 f_print(fout, "\treturn (retval);\n}\n");
228 }
229 /* put in sample freeing routine */
230 if (mtflag) {
231 f_print(fout, "\nint\n");
232 pvname(def->def_name, vp->vers_num);
233 f_print(fout,"_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)\n");
234 f_print(fout, "{\n");
235 f_print(fout, "\t(void) xdr_free(xdr_result, result);\n");
236 f_print(fout,
237 "\n\t/*\n\t * Insert additional freeing code here, if needed\n\t */\n");
238 f_print(fout, "\n}\n");
239
240
241 }
242 }
243 }
244
245
246
247 static void
return_type(proc_list * plist)248 return_type(proc_list *plist)
249 {
250 ptype(plist->res_prefix, plist->res_type, 1);
251 }
252
253 void
add_sample_msg(void)254 add_sample_msg(void)
255 {
256 f_print(fout, "/*\n");
257 f_print(fout, " * This is sample code generated by rpcgen.\n");
258 f_print(fout, " * These are only templates and you can use them\n");
259 f_print(fout, " * as a guideline for developing your own functions.\n");
260 f_print(fout, " */\n\n");
261 }
262
263 void
write_sample_clnt_main(void)264 write_sample_clnt_main(void)
265 {
266 list *l;
267 definition *def;
268 version_list *vp;
269
270 f_print(fout, "\n\n");
271 f_print(fout, "int\n");
272 f_print(fout, "main(int argc, char *argv[])\n{\n");
273
274 f_print(fout, "\tchar *host;");
275 f_print(fout, "\n\n\tif (argc < 2) {");
276 f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n");
277 f_print(fout, "\t\texit(1);\n\t}");
278 f_print(fout, "\n\thost = argv[1];\n");
279
280 for (l = defined; l != NULL; l = l->next) {
281 def = l->val;
282 if (def->def_kind != DEF_PROGRAM) {
283 continue;
284 }
285 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
286 f_print(fout, "\t");
287 pvname(def->def_name, vp->vers_num);
288 f_print(fout, "(host);\n");
289 }
290 }
291 f_print(fout, "}\n");
292 }
293