2 * From: @(#)rpc_sample.c 1.1 90/08/30
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34 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler
39 #include "rpc_parse.h"
44 static const char RQSTP[] = "rqstp";
46 static void write_sample_client (const char *program_name, version_list * vp);
47 static void write_sample_server (definition * def);
48 static void return_type (proc_list * plist);
52 write_sample_svc (definition * def)
55 if (def->def_kind != DEF_PROGRAM)
57 write_sample_server (def);
62 write_sample_clnt (definition * def)
67 if (def->def_kind != DEF_PROGRAM)
69 /* generate sample code for each version */
70 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
72 write_sample_client (def->def_name, vp);
80 write_sample_client (const char *program_name, version_list * vp)
86 f_print (fout, "\n\nvoid\n");
87 pvname (program_name, vp->vers_num);
89 f_print (fout, "(char *host)\n{\n");
91 f_print (fout, "(host)\nchar *host;\n{\n");
92 f_print (fout, "\tCLIENT *clnt;\n");
95 for (proc = vp->procs; proc != NULL; proc = proc->next)
101 f_print (fout, "enum clnt_stat retval_%d;\n\t", i);
102 ptype (proc->res_prefix, proc->res_type, 1);
103 if (!streq (proc->res_type, "void"))
104 f_print (fout, "result_%d;\n", i);
106 fprintf (fout, "*result_%d;\n", i);
110 ptype (proc->res_prefix, proc->res_type, 1);
111 f_print (fout, " *result_%d;\n", i);
113 /* print out declarations for arguments */
114 if (proc->arg_num < 2 && !newstyle)
116 f_print (fout, "\t");
117 if (!streq (proc->args.decls->decl.type, "void"))
119 ptype (proc->args.decls->decl.prefix,
120 proc->args.decls->decl.type, 1);
124 f_print (fout, "char *"); /* cannot have "void" type */
125 pvname (proc->proc_name, vp->vers_num);
126 f_print (fout, "_arg;\n");
128 else if (!streq (proc->args.decls->decl.type, "void"))
130 for (l = proc->args.decls; l != NULL; l = l->next)
132 f_print (fout, "\t");
133 ptype (l->decl.prefix, l->decl.type, 1);
134 if (strcmp (l->decl.type, "string") == 1)
136 pvname (proc->proc_name, vp->vers_num);
137 f_print (fout, "_%s;\n", l->decl.name);
142 /* generate creation of client handle */
143 f_print(fout, "\n#ifndef\tDEBUG\n");
144 f_print (fout, "\tclnt = clnt_create (host, %s, %s, \"%s\");\n",
145 program_name, vp->vers_name, tirpcflag ? "netpath" : "udp");
146 f_print (fout, "\tif (clnt == NULL) {\n");
147 f_print (fout, "\t\tclnt_pcreateerror (host);\n");
148 f_print (fout, "\t\texit (1);\n\t}\n");
149 f_print(fout, "#endif\t/* DEBUG */\n\n");
151 /* generate calls to procedures */
153 for (proc = vp->procs; proc != NULL; proc = proc->next)
156 f_print(fout, "\tretval_%d = ",++i);
158 f_print (fout, "\tresult_%d = ", ++i);
159 pvname (proc->proc_name, vp->vers_num);
160 if (proc->arg_num < 2 && !newstyle)
163 if (streq (proc->args.decls->decl.type, "void"))/* cast to void* */
164 f_print (fout, "(void*)");
166 pvname (proc->proc_name, vp->vers_num);
168 f_print(fout, "_arg, &result_%d, clnt);\n", i);
170 f_print (fout, "_arg, clnt);\n");
172 else if (streq (proc->args.decls->decl.type, "void"))
175 f_print (fout, "(&result_%d, clnt);\n", i);
177 f_print (fout, "(clnt);\n");
182 for (l = proc->args.decls; l != NULL; l = l->next)
184 pvname (proc->proc_name, vp->vers_num);
185 f_print (fout, "_%s, ", l->decl.name);
188 f_print(fout, "&result_%d, ", i);
189 f_print (fout, "clnt);\n");
193 f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i);
197 f_print(fout, "\tif (result_%d == (", i);
198 ptype(proc->res_prefix, proc->res_type, 1);
199 f_print(fout, "*) NULL) {\n");
201 f_print(fout, "\t\tclnt_perror (clnt, \"call failed\");\n");
202 f_print(fout, "\t}\n");
205 f_print (fout, "#ifndef\tDEBUG\n");
206 f_print (fout, "\tclnt_destroy (clnt);\n");
207 f_print (fout, "#endif\t /* DEBUG */\n");
208 f_print (fout, "}\n");
212 write_sample_server (definition * def)
217 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
219 for (proc = vp->procs; proc != NULL; proc = proc->next)
221 f_print (fout, "\n");
225 f_print (fout, "*\n");
228 f_print (fout, "bool_t\n");
230 pvname_svc (proc->proc_name, vp->vers_num);
232 pvname(proc->proc_name, vp->vers_num);
233 printarglist(proc, "result", RQSTP, "struct svc_req *");
234 f_print(fout, "{\n");
237 f_print(fout, "\tstatic ");
238 if(!streq(proc->res_type, "void"))
241 f_print(fout, "char *");
242 /* cannot have void type */
243 /* f_print(fout, " result;\n", proc->res_type); */
244 f_print(fout, " result;\n");
247 f_print(fout, "\tbool_t retval;\n");
248 fprintf (fout, "\n\t/*\n\t * insert server code here\n\t */\n\n");
252 if (!streq(proc->res_type, "void"))
253 f_print(fout, "\treturn &result;\n}\n");
254 else /* cast back to void * */
255 f_print(fout, "\treturn (void *) &result;\n}\n");
258 f_print(fout, "\treturn retval;\n}\n");
261 /* put in sample freeing routine */
264 f_print(fout, "\nint\n");
265 pvname(def->def_name, vp->vers_num);
267 f_print(fout,"_freeresult (SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)\n");
270 f_print(fout,"_freeresult (transp, xdr_result, result)\n");
271 f_print(fout,"\tSVCXPRT *transp;\n");
272 f_print(fout,"\txdrproc_t xdr_result;\n");
273 f_print(fout,"\tcaddr_t result;\n");
275 f_print(fout, "{\n");
276 f_print(fout, "\txdr_free (xdr_result, result);\n");
278 "\n\t/*\n\t * Insert additional freeing code here, if needed\n\t */\n");
279 f_print(fout, "\n\treturn 1;\n}\n");
287 return_type (proc_list * plist)
289 ptype (plist->res_prefix, plist->res_type, 1);
293 add_sample_msg (void)
295 f_print (fout, "/*\n");
296 f_print (fout, " * This is sample code generated by rpcgen.\n");
297 f_print (fout, " * These are only templates and you can use them\n");
298 f_print (fout, " * as a guideline for developing your own functions.\n");
299 f_print (fout, " */\n\n");
303 write_sample_clnt_main (void)
309 f_print (fout, "\n\n");
311 f_print (fout, "int\nmain (int argc, char *argv[])\n{\n");
313 f_print (fout, "int\nmain (argc, argv)\nint argc;\nchar *argv[];\n{\n");
315 f_print (fout, "\tchar *host;");
316 f_print (fout, "\n\n\tif (argc < 2) {");
317 f_print (fout, "\n\t\tprintf (\"usage: %%s server_host\\n\", argv[0]);\n");
318 f_print (fout, "\t\texit (1);\n\t}");
319 f_print (fout, "\n\thost = argv[1];\n");
321 for (l = defined; l != NULL; l = l->next)
324 if (def->def_kind != DEF_PROGRAM)
328 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next)
330 f_print (fout, "\t");
331 pvname (def->def_name, vp->vers_num);
332 f_print (fout, " (host);\n");
335 f_print (fout, "exit (0);\n}\n");