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_hout.c, Header file outputter for the RPC protocol compiler 32 * Copyright (C) 1987, Sun Microsystems, Inc. 33 */ 34 #include <stdio.h> 35 #include <ctype.h> 36 #include "rpc_parse.h" 37 #include "rpc_scan.h" 38 #include "rpc_util.h" 39 40 void storexdrfuncdecl(const char *, int ); 41 static void pconstdef( definition * ); 42 static void pstructdef( definition * ); 43 static void puniondef( definition * ); 44 static void pprogramdef( definition *, int ); 45 static void penumdef( definition * ); 46 static void ptypedef( definition * ); 47 static void pdefine(const char *, const char *); 48 static int undefined2(const char *, const char *); 49 static void parglist(proc_list *, const char *); 50 static void pprocdef(proc_list *, version_list *, const char *, int); 51 52 /* 53 * Print the C-version of an xdr definition 54 */ 55 void 56 print_datadef(definition *def, int headeronly) 57 { 58 59 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 60 return; 61 62 if (def->def_kind != DEF_CONST) { 63 f_print(fout, "\n"); 64 } 65 switch (def->def_kind) { 66 case DEF_STRUCT: 67 pstructdef(def); 68 break; 69 case DEF_UNION: 70 puniondef(def); 71 break; 72 case DEF_ENUM: 73 penumdef(def); 74 break; 75 case DEF_TYPEDEF: 76 ptypedef(def); 77 break; 78 case DEF_PROGRAM: 79 pprogramdef(def, headeronly); 80 break; 81 case DEF_CONST: 82 pconstdef(def); 83 break; 84 } 85 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 86 storexdrfuncdecl(def->def_name, 87 def->def_kind != DEF_TYPEDEF || 88 !isvectordef(def->def.ty.old_type, 89 def->def.ty.rel)); 90 } 91 } 92 93 94 void 95 print_funcdef(definition *def, int headeronly) 96 { 97 switch (def->def_kind) { 98 case DEF_PROGRAM: 99 f_print(fout, "\n"); 100 pprogramdef(def, headeronly); 101 break; 102 default: 103 break; 104 } 105 } 106 107 /* store away enough information to allow the XDR functions to be spat 108 out at the end of the file */ 109 110 void 111 storexdrfuncdecl(const char *name, int pointerp) 112 { 113 xdrfunc * xdrptr; 114 115 xdrptr = XALLOC(struct xdrfunc); 116 117 xdrptr->name = name; 118 xdrptr->pointerp = pointerp; 119 xdrptr->next = NULL; 120 121 if (xdrfunc_tail == NULL){ 122 xdrfunc_head = xdrptr; 123 xdrfunc_tail = xdrptr; 124 } else { 125 xdrfunc_tail->next = xdrptr; 126 xdrfunc_tail = xdrptr; 127 } 128 129 130 } 131 132 void 133 print_xdr_func_def(const char *name, int pointerp) 134 { 135 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 136 name, pointerp ? "*" : ""); 137 } 138 139 140 static void 141 pconstdef(definition *def) 142 { 143 pdefine(def->def_name, def->def.co); 144 } 145 146 /* print out the definitions for the arguments of functions in the 147 header file 148 */ 149 static void 150 pargdef(definition *def) 151 { 152 decl_list *l; 153 version_list *vers; 154 char *name; 155 proc_list *plist; 156 157 158 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 159 for (plist = vers->procs; plist != NULL; 160 plist = plist->next) { 161 162 if (!newstyle || plist->arg_num < 2) { 163 continue; /* old style or single args */ 164 } 165 name = plist->args.argname; 166 f_print(fout, "struct %s {\n", name); 167 for (l = plist->args.decls; 168 l != NULL; l = l->next) { 169 pdeclaration(name, &l->decl, 1, 170 ";\n"); 171 } 172 f_print(fout, "};\n"); 173 f_print(fout, "typedef struct %s %s;\n", 174 name, name); 175 storexdrfuncdecl(name, 1); 176 f_print(fout, "\n"); 177 } 178 } 179 } 180 181 182 static void 183 pstructdef(definition *def) 184 { 185 decl_list *l; 186 const char *name = def->def_name; 187 188 f_print(fout, "struct %s {\n", name); 189 for (l = def->def.st.decls; l != NULL; l = l->next) { 190 pdeclaration(name, &l->decl, 1, ";\n"); 191 } 192 f_print(fout, "};\n"); 193 f_print(fout, "typedef struct %s %s;\n", name, name); 194 } 195 196 static void 197 puniondef(definition *def) 198 { 199 case_list *l; 200 const char *name = def->def_name; 201 declaration *decl; 202 203 f_print(fout, "struct %s {\n", name); 204 decl = &def->def.un.enum_decl; 205 if (streq(decl->type, "bool")) { 206 f_print(fout, "\tbool_t %s;\n", decl->name); 207 } else { 208 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 209 } 210 f_print(fout, "\tunion {\n"); 211 for (l = def->def.un.cases; l != NULL; l = l->next) { 212 if (l->contflag == 0) 213 pdeclaration(name, &l->case_decl, 2, ";\n"); 214 } 215 decl = def->def.un.default_decl; 216 if (decl && !streq(decl->type, "void")) { 217 pdeclaration(name, decl, 2, ";\n"); 218 } 219 f_print(fout, "\t} %s_u;\n", name); 220 f_print(fout, "};\n"); 221 f_print(fout, "typedef struct %s %s;\n", name, name); 222 } 223 224 static void 225 pdefine(const char *name, const char *num) 226 { 227 f_print(fout, "#define\t%s %s\n", name, num); 228 } 229 230 static void 231 puldefine(const char *name, const char *num) 232 { 233 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 234 } 235 236 static int 237 define_printed(proc_list *stop, version_list *start) 238 { 239 version_list *vers; 240 proc_list *proc; 241 242 for (vers = start; vers != NULL; vers = vers->next) { 243 for (proc = vers->procs; proc != NULL; proc = proc->next) { 244 if (proc == stop) { 245 return (0); 246 } else if (streq(proc->proc_name, stop->proc_name)) { 247 return (1); 248 } 249 } 250 } 251 abort(); 252 /* NOTREACHED */ 253 } 254 255 static void 256 pfreeprocdef(const char * name, const char *vers) 257 { 258 f_print(fout, "extern int "); 259 pvname(name, vers); 260 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 261 } 262 263 static void 264 pdispatch(const char * name, const char *vers) 265 { 266 267 f_print(fout, "void "); 268 pvname(name, vers); 269 f_print(fout, "(struct svc_req *rqstp, SVCXPRT *transp);\n"); 270 } 271 272 static void 273 pprogramdef(definition *def, int headeronly) 274 { 275 version_list *vers; 276 proc_list *proc; 277 const char *ext; 278 279 pargdef(def); 280 281 puldefine(def->def_name, def->def.pr.prog_num); 282 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 283 if (tblflag) { 284 f_print(fout, 285 "extern struct rpcgen_table %s_%s_table[];\n", 286 locase(def->def_name), vers->vers_num); 287 f_print(fout, 288 "extern %s_%s_nproc;\n", 289 locase(def->def_name), vers->vers_num); 290 } 291 puldefine(vers->vers_name, vers->vers_num); 292 293 f_print(fout, "\n"); 294 ext = "extern "; 295 if (headeronly) { 296 f_print(fout, "%s", ext); 297 pdispatch(def->def_name, vers->vers_num); 298 } 299 for (proc = vers->procs; proc != NULL; proc = proc->next) { 300 if (!define_printed(proc, def->def.pr.versions)) { 301 puldefine(proc->proc_name, proc->proc_num); 302 } 303 f_print(fout, "%s", ext); 304 pprocdef(proc, vers, "CLIENT *", 0); 305 f_print(fout, "%s", ext); 306 pprocdef(proc, vers, "struct svc_req *", 1); 307 } 308 pfreeprocdef(def->def_name, vers->vers_num); 309 } 310 } 311 312 static void 313 pprocdef(proc_list *proc, version_list *vp, const char *addargtype, int server_p) 314 { 315 if (mtflag) {/* Print MT style stubs */ 316 if (server_p) 317 f_print(fout, "bool_t "); 318 else 319 f_print(fout, "enum clnt_stat "); 320 } else { 321 ptype(proc->res_prefix, proc->res_type, 1); 322 f_print(fout, "* "); 323 } 324 if (server_p) 325 pvname_svc(proc->proc_name, vp->vers_num); 326 else 327 pvname(proc->proc_name, vp->vers_num); 328 329 parglist(proc, addargtype); 330 } 331 332 333 334 /* print out argument list of procedure */ 335 static void 336 parglist(proc_list *proc, const char *addargtype) 337 { 338 decl_list *dl; 339 340 f_print(fout, "("); 341 if (proc->arg_num < 2 && newstyle && 342 streq(proc->args.decls->decl.type, "void")) { 343 /* 0 argument in new style: do nothing*/ 344 } 345 else { 346 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 347 ptype(dl->decl.prefix, dl->decl.type, 1); 348 if (!newstyle) 349 f_print(fout, "*"); 350 /* old style passes by reference */ 351 f_print(fout, ", "); 352 } 353 } 354 355 if (mtflag) { 356 ptype(proc->res_prefix, proc->res_type, 1); 357 f_print(fout, "*, "); 358 } 359 360 f_print(fout, "%s);\n", addargtype); 361 362 } 363 364 static void 365 penumdef(definition *def) 366 { 367 const char *name = def->def_name; 368 enumval_list *l; 369 const char *last = NULL; 370 int count = 0; 371 372 f_print(fout, "enum %s {\n", name); 373 for (l = def->def.en.vals; l != NULL; l = l->next) { 374 f_print(fout, "\t%s", l->name); 375 if (l->assignment) { 376 f_print(fout, " = %s", l->assignment); 377 last = l->assignment; 378 count = 1; 379 } else { 380 if (last == NULL) { 381 f_print(fout, " = %d", count++); 382 } else { 383 f_print(fout, " = %s + %d", last, count++); 384 } 385 } 386 if (l->next) 387 f_print(fout, ",\n"); 388 else 389 f_print(fout, "\n"); 390 } 391 f_print(fout, "};\n"); 392 f_print(fout, "typedef enum %s %s;\n", name, name); 393 } 394 395 static void 396 ptypedef(definition *def) 397 { 398 const char *name = def->def_name; 399 const char *old = def->def.ty.old_type; 400 char prefix[8]; /* enough to contain "struct ", including NUL */ 401 relation rel = def->def.ty.rel; 402 403 404 if (!streq(name, old)) { 405 if (streq(old, "string")) { 406 old = "char"; 407 rel = REL_POINTER; 408 } else if (streq(old, "opaque")) { 409 old = "char"; 410 } else if (streq(old, "bool")) { 411 old = "bool_t"; 412 } 413 if (undefined2(old, name) && def->def.ty.old_prefix) { 414 s_print(prefix, "%s ", def->def.ty.old_prefix); 415 } else { 416 prefix[0] = 0; 417 } 418 f_print(fout, "typedef "); 419 switch (rel) { 420 case REL_ARRAY: 421 f_print(fout, "struct {\n"); 422 f_print(fout, "\tu_int %s_len;\n", name); 423 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 424 f_print(fout, "} %s", name); 425 break; 426 case REL_POINTER: 427 f_print(fout, "%s%s *%s", prefix, old, name); 428 break; 429 case REL_VECTOR: 430 f_print(fout, "%s%s %s[%s]", prefix, old, name, 431 def->def.ty.array_max); 432 break; 433 case REL_ALIAS: 434 f_print(fout, "%s%s %s", prefix, old, name); 435 break; 436 } 437 f_print(fout, ";\n"); 438 } 439 } 440 441 void 442 pdeclaration(const char *name, declaration *dec, int tab, const char *separator) 443 { 444 char buf[8]; /* enough to hold "struct ", include NUL */ 445 const char *prefix; 446 const char *type; 447 448 if (streq(dec->type, "void")) { 449 return; 450 } 451 tabify(fout, tab); 452 if (streq(dec->type, name) && !dec->prefix) { 453 f_print(fout, "struct "); 454 } 455 if (streq(dec->type, "string")) { 456 f_print(fout, "char *%s", dec->name); 457 } else { 458 prefix = ""; 459 if (streq(dec->type, "bool")) { 460 type = "bool_t"; 461 } else if (streq(dec->type, "opaque")) { 462 type = "char"; 463 } else { 464 if (dec->prefix) { 465 s_print(buf, "%s ", dec->prefix); 466 prefix = buf; 467 } 468 type = dec->type; 469 } 470 switch (dec->rel) { 471 case REL_ALIAS: 472 f_print(fout, "%s%s %s", prefix, type, dec->name); 473 break; 474 case REL_VECTOR: 475 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 476 dec->array_max); 477 break; 478 case REL_POINTER: 479 f_print(fout, "%s%s *%s", prefix, type, dec->name); 480 break; 481 case REL_ARRAY: 482 f_print(fout, "struct {\n"); 483 tabify(fout, tab); 484 f_print(fout, "\tu_int %s_len;\n", dec->name); 485 tabify(fout, tab); 486 f_print(fout, 487 "\t%s%s *%s_val;\n", prefix, type, dec->name); 488 tabify(fout, tab); 489 f_print(fout, "} %s", dec->name); 490 break; 491 } 492 } 493 fputs(separator, fout); 494 } 495 496 static int 497 undefined2(const char *type, const char *stop) 498 { 499 list *l; 500 definition *def; 501 502 for (l = defined; l != NULL; l = l->next) { 503 def = (definition *) l->val; 504 if (def->def_kind != DEF_PROGRAM) { 505 if (streq(def->def_name, stop)) { 506 return (1); 507 } else if (streq(def->def_name, type)) { 508 return (0); 509 } 510 } 511 } 512 return (1); 513 } 514