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 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 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 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 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 248 return_type(proc_list *plist) 249 { 250 ptype(plist->res_prefix, plist->res_type, 1); 251 } 252 253 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 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