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 * $DragonFly: src/usr.bin/rpcgen/rpc_sample.c,v 1.3 2003/11/03 19:31:32 eirikn Exp $ 29 */ 30 31 #pragma ident "@(#)rpc_sample.c 1.9 94/04/25 SMI" 32 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_util.h" 42 43 44 static char RQSTP[] = "rqstp"; 45 46 extern void printarglist( proc_list *, char *, char *, char *); 47 static void write_sample_client( char *, version_list * ); 48 static void write_sample_server( definition * ); 49 static void return_type( proc_list * ); 50 51 void 52 write_sample_svc(def) 53 definition *def; 54 { 55 56 if (def->def_kind != DEF_PROGRAM) 57 return; 58 write_sample_server(def); 59 } 60 61 62 int 63 write_sample_clnt(def) 64 definition *def; 65 { 66 version_list *vp; 67 int count = 0; 68 69 if (def->def_kind != DEF_PROGRAM) 70 return(0); 71 /* generate sample code for each version */ 72 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 73 write_sample_client(def->def_name, vp); 74 ++count; 75 } 76 return(count); 77 } 78 79 80 static void 81 write_sample_client(program_name, vp) 82 char *program_name; 83 version_list *vp; 84 { 85 proc_list *proc; 86 int i; 87 decl_list *l; 88 89 f_print(fout, "\n\nvoid\n"); 90 pvname(program_name, vp->vers_num); 91 if(Cflag) 92 f_print(fout,"(char *host)\n{\n"); 93 else 94 f_print(fout, "(host)\n\tchar *host;\n{\n"); 95 f_print(fout, "\tCLIENT *clnt;\n"); 96 97 i = 0; 98 for (proc = vp->procs; proc != NULL; proc = proc->next) { 99 f_print(fout, "\t"); 100 if (mtflag) { 101 f_print(fout, "enum clnt_stat retval_%d;\n\t", ++i); 102 ptype(proc->res_prefix, proc->res_type, 1); 103 f_print(fout, "result_%d;\n", i); 104 } else { 105 ptype(proc->res_prefix, proc->res_type, 1); 106 f_print(fout, " *result_%d;\n",++i); 107 } 108 /* print out declarations for arguments */ 109 if(proc->arg_num < 2 && !newstyle) { 110 f_print(fout, "\t"); 111 if(!streq(proc->args.decls->decl.type, "void")) 112 ptype(proc->args.decls->decl.prefix, 113 proc->args.decls->decl.type, 1); 114 else 115 f_print(fout, "char * "); /* cannot have "void" type */ 116 f_print(fout, " "); 117 pvname(proc->proc_name, vp->vers_num); 118 f_print(fout, "_arg;\n"); 119 } else if (!streq(proc->args.decls->decl.type, "void")) { 120 for (l = proc->args.decls; l != NULL; l = l->next) { 121 f_print(fout, "\t"); 122 ptype(l->decl.prefix, l->decl.type, 1); 123 if (strcmp(l->decl.type,"string") == 1) 124 f_print(fout, " "); 125 pvname(proc->proc_name, vp->vers_num); 126 f_print(fout, "_%s;\n", l->decl.name); 127 } 128 } 129 } 130 131 /* generate creation of client handle */ 132 f_print(fout, "\n#ifndef\tDEBUG\n"); 133 f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n", 134 program_name, vp->vers_name, tirpcflag? "netpath" : "udp"); 135 f_print(fout, "\tif (clnt == (CLIENT *) NULL) {\n"); 136 f_print(fout, "\t\tclnt_pcreateerror(host);\n"); 137 f_print(fout, "\t\texit(1);\n\t}\n"); 138 f_print(fout, "#endif\t/* DEBUG */\n\n"); 139 140 /* generate calls to procedures */ 141 i = 0; 142 for (proc = vp->procs; proc != NULL; proc = proc->next) { 143 if (mtflag) 144 f_print(fout, "\tretval_%d = ",++i); 145 else 146 f_print(fout, "\tresult_%d = ",++i); 147 pvname(proc->proc_name, vp->vers_num); 148 if (proc->arg_num < 2 && !newstyle) { 149 f_print(fout, "("); 150 if(streq(proc->args.decls->decl.type, "void")) 151 /* cast to void * */ 152 f_print(fout, "(void *)"); 153 f_print(fout, "&"); 154 pvname(proc->proc_name, vp->vers_num); 155 if (mtflag) 156 f_print(fout, "_arg, &result_%d, clnt);\n", 157 i); 158 else 159 f_print(fout, "_arg, clnt);\n"); 160 161 } else if (streq(proc->args.decls->decl.type, "void")) { 162 if (mtflag) 163 f_print(fout, "(&result_%d, clnt);\n", i); 164 else 165 f_print(fout, "(clnt);\n"); 166 } 167 else { 168 f_print(fout, "("); 169 for (l = proc->args.decls; l != NULL; l = l->next) { 170 pvname(proc->proc_name, vp->vers_num); 171 f_print(fout, "_%s, ", l->decl.name); 172 } 173 if (mtflag) 174 f_print(fout, "&result_%d, ", i); 175 176 f_print(fout, "clnt);\n"); 177 } 178 if (mtflag) { 179 f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i); 180 181 } else { 182 f_print(fout, "\tif (result_%d == (", i); 183 ptype(proc->res_prefix, proc->res_type, 1); 184 f_print(fout, "*) NULL) {\n"); 185 } 186 f_print(fout, "\t\tclnt_perror(clnt, \"call failed\");\n"); 187 f_print(fout, "\t}\n"); 188 } 189 190 f_print(fout, "#ifndef\tDEBUG\n"); 191 f_print(fout, "\tclnt_destroy(clnt);\n"); 192 f_print(fout, "#endif\t /* DEBUG */\n"); 193 f_print(fout, "}\n"); 194 } 195 196 static void 197 write_sample_server(def) 198 definition *def; 199 { 200 version_list *vp; 201 proc_list *proc; 202 203 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 204 for (proc = vp->procs; proc != NULL; proc = proc->next) { 205 f_print(fout, "\n"); 206 if (!mtflag) { 207 return_type(proc); 208 f_print(fout, "*\n"); 209 } else 210 f_print(fout, "bool_t\n"); 211 if (Cflag || mtflag) 212 pvname_svc(proc->proc_name, vp->vers_num); 213 else 214 pvname(proc->proc_name, vp->vers_num); 215 printarglist(proc, "result", RQSTP, "struct svc_req *"); 216 217 f_print(fout, "{\n"); 218 if (!mtflag) { 219 f_print(fout, "\tstatic "); 220 if(!streq(proc->res_type, "void")) 221 return_type(proc); 222 else 223 f_print(fout, "char *"); 224 /* cannot have void type */ 225 f_print(fout, " result;\n"); 226 } 227 else 228 f_print(fout, "\tbool_t retval;\n"); 229 f_print(fout, 230 "\n\t/*\n\t * insert server code here\n\t */\n\n"); 231 232 if (!mtflag) 233 if(!streq(proc->res_type, "void")) 234 f_print(fout, "\treturn (&result);\n}\n"); 235 else /* cast back to void * */ 236 f_print(fout, "\treturn((void *) &result);\n}\n"); 237 else 238 f_print(fout, "\treturn (retval);\n}\n"); 239 } 240 /* put in sample freeing routine */ 241 if (mtflag) { 242 f_print(fout, "\nint\n"); 243 pvname(def->def_name, vp->vers_num); 244 if (Cflag) 245 f_print(fout,"_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)\n"); 246 else { 247 f_print(fout,"_freeresult(transp, xdr_result, result)\n"); 248 f_print(fout,"\tSVCXPRT *transp;\n"); 249 f_print(fout,"\txdrproc_t xdr_result;\n"); 250 f_print(fout,"\tcaddr_t result;\n"); 251 } 252 f_print(fout, "{\n"); 253 f_print(fout, "\t(void) xdr_free(xdr_result, result);\n"); 254 f_print(fout, 255 "\n\t/*\n\t * Insert additional freeing code here, if needed\n\t */\n"); 256 f_print(fout, "\n}\n"); 257 258 259 } 260 } 261 } 262 263 264 265 static void 266 return_type(plist) 267 proc_list *plist; 268 { 269 ptype(plist->res_prefix, plist->res_type, 1); 270 } 271 272 void 273 add_sample_msg() 274 { 275 f_print(fout, "/*\n"); 276 f_print(fout, " * This is sample code generated by rpcgen.\n"); 277 f_print(fout, " * These are only templates and you can use them\n"); 278 f_print(fout, " * as a guideline for developing your own functions.\n"); 279 f_print(fout, " */\n\n"); 280 } 281 282 void 283 write_sample_clnt_main() 284 { 285 list *l; 286 definition *def; 287 version_list *vp; 288 289 f_print(fout, "\n\n"); 290 if(Cflag) 291 f_print(fout,"main(int argc, char *argv[])\n{\n"); 292 else 293 f_print(fout, "main(argc, argv)\n\tint argc;\n\tchar *argv[];\n{\n"); 294 295 f_print(fout, "\tchar *host;"); 296 f_print(fout, "\n\n\tif (argc < 2) {"); 297 f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n"); 298 f_print(fout, "\t\texit(1);\n\t}"); 299 f_print(fout, "\n\thost = argv[1];\n"); 300 301 for (l = defined; l != NULL; l = l->next) { 302 def = l->val; 303 if (def->def_kind != DEF_PROGRAM) { 304 continue; 305 } 306 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 307 f_print(fout, "\t"); 308 pvname(def->def_name, vp->vers_num); 309 f_print(fout, "(host);\n"); 310 } 311 } 312 f_print(fout, "}\n"); 313 } 314