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