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 /* 33 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler 34 * Copyright (C) 1987, Sun Microsystems, Inc. 35 */ 36 37 #include <stdio.h> 38 #include <string.h> 39 #include "rpc_parse.h" 40 #include "rpc_util.h" 41 42 43 static char RQSTP[] = "rqstp"; 44 45 extern void printarglist __P(( proc_list *, char *, char *, char *)); 46 static void write_sample_client __P(( char *, version_list * )); 47 static void write_sample_server __P(( definition * )); 48 static void return_type __P(( proc_list * )); 49 50 void 51 write_sample_svc(def) 52 definition *def; 53 { 54 55 if (def->def_kind != DEF_PROGRAM) 56 return; 57 write_sample_server(def); 58 } 59 60 61 int 62 write_sample_clnt(def) 63 definition *def; 64 { 65 version_list *vp; 66 int count = 0; 67 68 if (def->def_kind != DEF_PROGRAM) 69 return(0); 70 /* generate sample code for each version */ 71 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 72 write_sample_client(def->def_name, vp); 73 ++count; 74 } 75 return(count); 76 } 77 78 79 static void 80 write_sample_client(program_name, vp) 81 char *program_name; 82 version_list *vp; 83 { 84 proc_list *proc; 85 int i; 86 decl_list *l; 87 88 f_print(fout, "\n\nvoid\n"); 89 pvname(program_name, vp->vers_num); 90 if(Cflag) 91 f_print(fout,"(char *host)\n{\n"); 92 else 93 f_print(fout, "(host)\n\tchar *host;\n{\n"); 94 f_print(fout, "\tCLIENT *clnt;\n"); 95 96 i = 0; 97 for (proc = vp->procs; proc != NULL; proc = proc->next) { 98 f_print(fout, "\t"); 99 if (mtflag) { 100 f_print(fout, "enum clnt_stat retval_%d;\n\t", ++i); 101 ptype(proc->res_prefix, proc->res_type, 1); 102 f_print(fout, "result_%d;\n", i); 103 } else { 104 ptype(proc->res_prefix, proc->res_type, 1); 105 f_print(fout, " *result_%d;\n",++i); 106 } 107 /* print out declarations for arguments */ 108 if(proc->arg_num < 2 && !newstyle) { 109 f_print(fout, "\t"); 110 if(!streq(proc->args.decls->decl.type, "void")) 111 ptype(proc->args.decls->decl.prefix, 112 proc->args.decls->decl.type, 1); 113 else 114 f_print(fout, "char * "); /* cannot have "void" type */ 115 f_print(fout, " "); 116 pvname(proc->proc_name, vp->vers_num); 117 f_print(fout, "_arg;\n"); 118 } else if (!streq(proc->args.decls->decl.type, "void")) { 119 for (l = proc->args.decls; l != NULL; l = l->next) { 120 f_print(fout, "\t"); 121 ptype(l->decl.prefix, l->decl.type, 1); 122 if (strcmp(l->decl.type,"string") == 1) 123 f_print(fout, " "); 124 pvname(proc->proc_name, vp->vers_num); 125 f_print(fout, "_%s;\n", l->decl.name); 126 } 127 } 128 } 129 130 /* generate creation of client handle */ 131 f_print(fout, "\n#ifndef\tDEBUG\n"); 132 f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n", 133 program_name, vp->vers_name, tirpcflag? "netpath" : "udp"); 134 f_print(fout, "\tif (clnt == (CLIENT *) NULL) {\n"); 135 f_print(fout, "\t\tclnt_pcreateerror(host);\n"); 136 f_print(fout, "\t\texit(1);\n\t}\n"); 137 f_print(fout, "#endif\t/* DEBUG */\n\n"); 138 139 /* generate calls to procedures */ 140 i = 0; 141 for (proc = vp->procs; proc != NULL; proc = proc->next) { 142 if (mtflag) 143 f_print(fout, "\tretval_%d = ",++i); 144 else 145 f_print(fout, "\tresult_%d = ",++i); 146 pvname(proc->proc_name, vp->vers_num); 147 if (proc->arg_num < 2 && !newstyle) { 148 f_print(fout, "("); 149 if(streq(proc->args.decls->decl.type, "void")) 150 /* cast to void * */ 151 f_print(fout, "(void *)"); 152 f_print(fout, "&"); 153 pvname(proc->proc_name, vp->vers_num); 154 if (mtflag) 155 f_print(fout, "_arg, &result_%d, clnt);\n", 156 i); 157 else 158 f_print(fout, "_arg, clnt);\n"); 159 160 } else if (streq(proc->args.decls->decl.type, "void")) { 161 if (mtflag) 162 f_print(fout, "(&result_%d, clnt);\n", i); 163 else 164 f_print(fout, "(clnt);\n"); 165 } 166 else { 167 f_print(fout, "("); 168 for (l = proc->args.decls; l != NULL; l = l->next) { 169 pvname(proc->proc_name, vp->vers_num); 170 f_print(fout, "_%s, ", l->decl.name); 171 } 172 if (mtflag) 173 f_print(fout, "&result_%d, ", i); 174 175 f_print(fout, "clnt);\n"); 176 } 177 if (mtflag) { 178 f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i); 179 180 } else { 181 f_print(fout, "\tif (result_%d == (", i); 182 ptype(proc->res_prefix, proc->res_type, 1); 183 f_print(fout, "*) NULL) {\n"); 184 } 185 f_print(fout, "\t\tclnt_perror(clnt, \"call failed\");\n"); 186 f_print(fout, "\t}\n"); 187 } 188 189 f_print(fout, "#ifndef\tDEBUG\n"); 190 f_print(fout, "\tclnt_destroy(clnt);\n"); 191 f_print(fout, "#endif\t /* DEBUG */\n"); 192 f_print(fout, "}\n"); 193 } 194 195 static void 196 write_sample_server(def) 197 definition *def; 198 { 199 version_list *vp; 200 proc_list *proc; 201 202 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 203 for (proc = vp->procs; proc != NULL; proc = proc->next) { 204 f_print(fout, "\n"); 205 if (!mtflag) { 206 return_type(proc); 207 f_print(fout, "*\n"); 208 } else 209 f_print(fout, "bool_t\n"); 210 if (Cflag || mtflag) 211 pvname_svc(proc->proc_name, vp->vers_num); 212 else 213 pvname(proc->proc_name, vp->vers_num); 214 printarglist(proc, "result", RQSTP, "struct svc_req *"); 215 216 f_print(fout, "{\n"); 217 if (!mtflag) { 218 f_print(fout, "\tstatic "); 219 if(!streq(proc->res_type, "void")) 220 return_type(proc); 221 else 222 f_print(fout, "char *"); 223 /* cannot have void type */ 224 f_print(fout, " result;\n"); 225 } 226 else 227 f_print(fout, "\tbool_t retval;\n"); 228 f_print(fout, 229 "\n\t/*\n\t * insert server code here\n\t */\n\n"); 230 231 if (!mtflag) 232 if(!streq(proc->res_type, "void")) 233 f_print(fout, "\treturn (&result);\n}\n"); 234 else /* cast back to void * */ 235 f_print(fout, "\treturn((void *) &result);\n}\n"); 236 else 237 f_print(fout, "\treturn (retval);\n}\n"); 238 } 239 /* put in sample freeing routine */ 240 if (mtflag) { 241 f_print(fout, "\nint\n"); 242 pvname(def->def_name, vp->vers_num); 243 if (Cflag) 244 f_print(fout,"_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)\n"); 245 else { 246 f_print(fout,"_freeresult(transp, xdr_result, result)\n"); 247 f_print(fout,"\tSVCXPRT *transp;\n"); 248 f_print(fout,"\txdrproc_t xdr_result;\n"); 249 f_print(fout,"\tcaddr_t result;\n"); 250 } 251 f_print(fout, "{\n"); 252 f_print(fout, "\t(void) xdr_free(xdr_result, result);\n"); 253 f_print(fout, 254 "\n\t/*\n\t * Insert additional freeing code here, if needed\n\t */\n"); 255 f_print(fout, "\n}\n"); 256 257 258 } 259 } 260 } 261 262 263 264 static void 265 return_type(plist) 266 proc_list *plist; 267 { 268 ptype(plist->res_prefix, plist->res_type, 1); 269 } 270 271 void 272 add_sample_msg() 273 { 274 f_print(fout, "/*\n"); 275 f_print(fout, " * This is sample code generated by rpcgen.\n"); 276 f_print(fout, " * These are only templates and you can use them\n"); 277 f_print(fout, " * as a guideline for developing your own functions.\n"); 278 f_print(fout, " */\n\n"); 279 } 280 281 void 282 write_sample_clnt_main() 283 { 284 list *l; 285 definition *def; 286 version_list *vp; 287 288 f_print(fout, "\n\n"); 289 if(Cflag) 290 f_print(fout,"main(int argc, char *argv[])\n{\n"); 291 else 292 f_print(fout, "main(argc, argv)\n\tint argc;\n\tchar *argv[];\n{\n"); 293 294 f_print(fout, "\tchar *host;"); 295 f_print(fout, "\n\n\tif (argc < 2) {"); 296 f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n"); 297 f_print(fout, "\t\texit(1);\n\t}"); 298 f_print(fout, "\n\thost = argv[1];\n"); 299 300 for (l = defined; l != NULL; l = l->next) { 301 def = l->val; 302 if (def->def_kind != DEF_PROGRAM) { 303 continue; 304 } 305 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 306 f_print(fout, "\t"); 307 pvname(def->def_name, vp->vers_num); 308 f_print(fout, "(host);\n"); 309 } 310 } 311 f_print(fout, "}\n"); 312 } 313