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 * @(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI 30 */ 31 32 #ident "@(#)rpc_hout.c 1.16 94/04/25 SMI" 33 34 /* 35 * rpc_hout.c, Header file outputter for the RPC protocol compiler 36 * Copyright (C) 1987, Sun Microsystems, Inc. 37 */ 38 #include <stdio.h> 39 #include <ctype.h> 40 #include "rpc_parse.h" 41 #include "rpc_util.h" 42 43 void storexdrfuncdecl __P(( char *, int )); 44 static void pconstdef __P(( definition * )); 45 static void pstructdef __P(( definition * )); 46 static void puniondef __P(( definition * )); 47 static void pprogramdef __P(( definition * )); 48 static void pstructdef __P(( definition * )); 49 static void penumdef __P(( definition * )); 50 static void ptypedef __P(( definition * )); 51 static void pdefine __P(( char *, char * )); 52 static int undefined2 __P(( char *, char * )); 53 static void parglist __P(( proc_list *, char * )); 54 static void pprocdef __P(( proc_list *, version_list *, char *, int, int )); 55 void pdeclaration __P(( char *, declaration *, int, char * )); 56 57 static char RESULT[] = "clnt_res"; 58 59 60 /* 61 * Print the C-version of an xdr definition 62 */ 63 void 64 print_datadef(def) 65 definition *def; 66 { 67 68 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 69 return; 70 71 if (def->def_kind != DEF_CONST) { 72 f_print(fout, "\n"); 73 } 74 switch (def->def_kind) { 75 case DEF_STRUCT: 76 pstructdef(def); 77 break; 78 case DEF_UNION: 79 puniondef(def); 80 break; 81 case DEF_ENUM: 82 penumdef(def); 83 break; 84 case DEF_TYPEDEF: 85 ptypedef(def); 86 break; 87 case DEF_PROGRAM: 88 pprogramdef(def); 89 break; 90 case DEF_CONST: 91 pconstdef(def); 92 break; 93 } 94 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 95 storexdrfuncdecl(def->def_name, 96 def->def_kind != DEF_TYPEDEF || 97 !isvectordef(def->def.ty.old_type, 98 def->def.ty.rel)); 99 } 100 } 101 102 103 void 104 print_funcdef(def) 105 definition *def; 106 { 107 switch (def->def_kind) { 108 case DEF_PROGRAM: 109 f_print(fout, "\n"); 110 pprogramdef(def); 111 break; 112 default: 113 } 114 } 115 116 /* store away enough information to allow the XDR functions to be spat 117 out at the end of the file */ 118 119 void 120 storexdrfuncdecl(name, pointerp) 121 char *name; 122 int pointerp; 123 { 124 xdrfunc * xdrptr; 125 126 xdrptr = (xdrfunc *) malloc(sizeof (struct xdrfunc)); 127 128 xdrptr->name = name; 129 xdrptr->pointerp = pointerp; 130 xdrptr->next = NULL; 131 132 if (xdrfunc_tail == NULL){ 133 xdrfunc_head = xdrptr; 134 xdrfunc_tail = xdrptr; 135 } else { 136 xdrfunc_tail->next = xdrptr; 137 xdrfunc_tail = xdrptr; 138 } 139 140 141 } 142 143 void 144 print_xdr_func_def(name, pointerp, i) 145 char* name; 146 int pointerp; 147 int i; 148 { 149 if (i == 2) { 150 f_print(fout, "extern bool_t xdr_%s();\n", name); 151 return; 152 } 153 else 154 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 155 name, pointerp ? "*" : ""); 156 157 158 } 159 160 161 static void 162 pconstdef(def) 163 definition *def; 164 { 165 pdefine(def->def_name, def->def.co); 166 } 167 168 /* print out the definitions for the arguments of functions in the 169 header file 170 */ 171 static void 172 pargdef(def) 173 definition *def; 174 { 175 decl_list *l; 176 version_list *vers; 177 char *name; 178 proc_list *plist; 179 180 181 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 182 for (plist = vers->procs; plist != NULL; 183 plist = plist->next) { 184 185 if (!newstyle || plist->arg_num < 2) { 186 continue; /* old style or single args */ 187 } 188 name = plist->args.argname; 189 f_print(fout, "struct %s {\n", name); 190 for (l = plist->args.decls; 191 l != NULL; l = l->next) { 192 pdeclaration(name, &l->decl, 1, 193 ";\n"); 194 } 195 f_print(fout, "};\n"); 196 f_print(fout, "typedef struct %s %s;\n", 197 name, name); 198 storexdrfuncdecl(name, 1); 199 f_print(fout, "\n"); 200 } 201 } 202 } 203 204 205 static void 206 pstructdef(def) 207 definition *def; 208 { 209 decl_list *l; 210 char *name = def->def_name; 211 212 f_print(fout, "struct %s {\n", name); 213 for (l = def->def.st.decls; l != NULL; l = l->next) { 214 pdeclaration(name, &l->decl, 1, ";\n"); 215 } 216 f_print(fout, "};\n"); 217 f_print(fout, "typedef struct %s %s;\n", name, name); 218 } 219 220 static void 221 puniondef(def) 222 definition *def; 223 { 224 case_list *l; 225 char *name = def->def_name; 226 declaration *decl; 227 228 f_print(fout, "struct %s {\n", name); 229 decl = &def->def.un.enum_decl; 230 if (streq(decl->type, "bool")) { 231 f_print(fout, "\tbool_t %s;\n", decl->name); 232 } else { 233 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 234 } 235 f_print(fout, "\tunion {\n"); 236 for (l = def->def.un.cases; l != NULL; l = l->next) { 237 if (l->contflag == 0) 238 pdeclaration(name, &l->case_decl, 2, ";\n"); 239 } 240 decl = def->def.un.default_decl; 241 if (decl && !streq(decl->type, "void")) { 242 pdeclaration(name, decl, 2, ";\n"); 243 } 244 f_print(fout, "\t} %s_u;\n", name); 245 f_print(fout, "};\n"); 246 f_print(fout, "typedef struct %s %s;\n", name, name); 247 } 248 249 static void 250 pdefine(name, num) 251 char *name; 252 char *num; 253 { 254 f_print(fout, "#define\t%s %s\n", name, num); 255 } 256 257 static void 258 puldefine(name, num) 259 char *name; 260 char *num; 261 { 262 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 263 } 264 265 static int 266 define_printed(stop, start) 267 proc_list *stop; 268 version_list *start; 269 { 270 version_list *vers; 271 proc_list *proc; 272 273 for (vers = start; vers != NULL; vers = vers->next) { 274 for (proc = vers->procs; proc != NULL; proc = proc->next) { 275 if (proc == stop) { 276 return (0); 277 } else if (streq(proc->proc_name, stop->proc_name)) { 278 return (1); 279 } 280 } 281 } 282 abort(); 283 /* NOTREACHED */ 284 } 285 286 static void 287 pfreeprocdef(char * name, char *vers, int mode) 288 { 289 f_print(fout, "extern int "); 290 pvname(name, vers); 291 if (mode == 1) 292 f_print(fout,"_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 293 else 294 f_print(fout,"_freeresult();\n"); 295 296 297 } 298 299 static void 300 pprogramdef(def) 301 definition *def; 302 { 303 version_list *vers; 304 proc_list *proc; 305 int i; 306 char *ext; 307 308 pargdef(def); 309 310 puldefine(def->def_name, def->def.pr.prog_num); 311 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 312 if (tblflag) { 313 f_print(fout, 314 "extern struct rpcgen_table %s_%s_table[];\n", 315 locase(def->def_name), vers->vers_num); 316 f_print(fout, 317 "extern %s_%s_nproc;\n", 318 locase(def->def_name), vers->vers_num); 319 } 320 puldefine(vers->vers_name, vers->vers_num); 321 322 /* 323 * Print out 2 definitions, one for ANSI-C, another for 324 * old K & R C 325 */ 326 327 if(!Cflag){ 328 ext = "extern "; 329 for (proc = vers->procs; proc != NULL; 330 proc = proc->next) { 331 if (!define_printed(proc, 332 def->def.pr.versions)) { 333 puldefine(proc->proc_name, 334 proc->proc_num); 335 } 336 f_print(fout, "%s", ext); 337 pprocdef(proc, vers, NULL, 0, 2); 338 339 if (mtflag) { 340 f_print(fout, "%s", ext); 341 pprocdef(proc, vers, NULL, 1, 2); 342 } 343 } 344 pfreeprocdef(def->def_name, vers->vers_num, 2); 345 346 } else { 347 for (i = 1; i < 3; i++){ 348 if (i == 1){ 349 f_print(fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n"); 350 ext = "extern "; 351 }else{ 352 f_print(fout, "\n#else /* K&R C */\n"); 353 ext = "extern "; 354 } 355 356 for (proc = vers->procs; proc != NULL; 357 proc = proc->next) { 358 if (!define_printed(proc, 359 def->def.pr.versions)) { 360 puldefine(proc->proc_name, 361 proc->proc_num); 362 } 363 f_print(fout, "%s", ext); 364 pprocdef(proc, vers, "CLIENT *", 0, i); 365 f_print(fout, "%s", ext); 366 pprocdef(proc, vers, "struct svc_req *", 1, i); 367 } 368 pfreeprocdef(def->def_name, vers->vers_num, i); 369 } 370 f_print(fout, "#endif /* K&R C */\n"); 371 } 372 } 373 } 374 375 static void 376 pprocdef(proc, vp, addargtype, server_p, mode) 377 proc_list *proc; 378 version_list *vp; 379 char* addargtype; 380 int server_p; 381 int mode; 382 { 383 if (mtflag) {/* Print MT style stubs */ 384 if (server_p) 385 f_print(fout, "bool_t "); 386 else 387 f_print(fout, "enum clnt_stat "); 388 } else { 389 ptype(proc->res_prefix, proc->res_type, 1); 390 f_print(fout, "* "); 391 } 392 if (server_p) 393 pvname_svc(proc->proc_name, vp->vers_num); 394 else 395 pvname(proc->proc_name, vp->vers_num); 396 397 /* 398 * mode 1 = ANSI-C, mode 2 = K&R C 399 */ 400 if ( mode == 1) 401 parglist(proc, addargtype); 402 else 403 f_print(fout, "();\n"); 404 } 405 406 407 408 /* print out argument list of procedure */ 409 static void 410 parglist(proc, addargtype) 411 proc_list *proc; 412 char* addargtype; 413 { 414 decl_list *dl; 415 416 f_print(fout, "("); 417 if (proc->arg_num < 2 && newstyle && 418 streq(proc->args.decls->decl.type, "void")) { 419 /* 0 argument in new style: do nothing*/ 420 } 421 else { 422 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 423 ptype(dl->decl.prefix, dl->decl.type, 1); 424 if (!newstyle) 425 f_print(fout, "*"); 426 /* old style passes by reference */ 427 f_print(fout, ", "); 428 } 429 } 430 431 if (mtflag) { 432 ptype(proc->res_prefix, proc->res_type, 1); 433 f_print(fout, "*, "); 434 } 435 436 f_print(fout, "%s);\n", addargtype); 437 438 } 439 440 static void 441 penumdef(def) 442 definition *def; 443 { 444 char *name = def->def_name; 445 enumval_list *l; 446 char *last = NULL; 447 int count = 0; 448 449 f_print(fout, "enum %s {\n", name); 450 for (l = def->def.en.vals; l != NULL; l = l->next) { 451 f_print(fout, "\t%s", l->name); 452 if (l->assignment) { 453 f_print(fout, " = %s", l->assignment); 454 last = l->assignment; 455 count = 1; 456 } else { 457 if (last == NULL) { 458 f_print(fout, " = %d", count++); 459 } else { 460 f_print(fout, " = %s + %d", last, count++); 461 } 462 } 463 if (l->next) 464 f_print(fout, ",\n"); 465 else 466 f_print(fout, "\n"); 467 } 468 f_print(fout, "};\n"); 469 f_print(fout, "typedef enum %s %s;\n", name, name); 470 } 471 472 static void 473 ptypedef(def) 474 definition *def; 475 { 476 char *name = def->def_name; 477 char *old = def->def.ty.old_type; 478 char prefix[8]; /* enough to contain "struct ", including NUL */ 479 relation rel = def->def.ty.rel; 480 481 482 if (!streq(name, old)) { 483 if (streq(old, "string")) { 484 old = "char"; 485 rel = REL_POINTER; 486 } else if (streq(old, "opaque")) { 487 old = "char"; 488 } else if (streq(old, "bool")) { 489 old = "bool_t"; 490 } 491 if (undefined2(old, name) && def->def.ty.old_prefix) { 492 s_print(prefix, "%s ", def->def.ty.old_prefix); 493 } else { 494 prefix[0] = 0; 495 } 496 f_print(fout, "typedef "); 497 switch (rel) { 498 case REL_ARRAY: 499 f_print(fout, "struct {\n"); 500 f_print(fout, "\tu_int %s_len;\n", name); 501 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 502 f_print(fout, "} %s", name); 503 break; 504 case REL_POINTER: 505 f_print(fout, "%s%s *%s", prefix, old, name); 506 break; 507 case REL_VECTOR: 508 f_print(fout, "%s%s %s[%s]", prefix, old, name, 509 def->def.ty.array_max); 510 break; 511 case REL_ALIAS: 512 f_print(fout, "%s%s %s", prefix, old, name); 513 break; 514 } 515 f_print(fout, ";\n"); 516 } 517 } 518 519 void 520 pdeclaration(name, dec, tab, separator) 521 char *name; 522 declaration *dec; 523 int tab; 524 char *separator; 525 { 526 char buf[8]; /* enough to hold "struct ", include NUL */ 527 char *prefix; 528 char *type; 529 530 if (streq(dec->type, "void")) { 531 return; 532 } 533 tabify(fout, tab); 534 if (streq(dec->type, name) && !dec->prefix) { 535 f_print(fout, "struct "); 536 } 537 if (streq(dec->type, "string")) { 538 f_print(fout, "char *%s", dec->name); 539 } else { 540 prefix = ""; 541 if (streq(dec->type, "bool")) { 542 type = "bool_t"; 543 } else if (streq(dec->type, "opaque")) { 544 type = "char"; 545 } else { 546 if (dec->prefix) { 547 s_print(buf, "%s ", dec->prefix); 548 prefix = buf; 549 } 550 type = dec->type; 551 } 552 switch (dec->rel) { 553 case REL_ALIAS: 554 f_print(fout, "%s%s %s", prefix, type, dec->name); 555 break; 556 case REL_VECTOR: 557 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 558 dec->array_max); 559 break; 560 case REL_POINTER: 561 f_print(fout, "%s%s *%s", prefix, type, dec->name); 562 break; 563 case REL_ARRAY: 564 f_print(fout, "struct {\n"); 565 tabify(fout, tab); 566 f_print(fout, "\tu_int %s_len;\n", dec->name); 567 tabify(fout, tab); 568 f_print(fout, 569 "\t%s%s *%s_val;\n", prefix, type, dec->name); 570 tabify(fout, tab); 571 f_print(fout, "} %s", dec->name); 572 break; 573 } 574 } 575 f_print(fout, separator); 576 } 577 578 static int 579 undefined2(type, stop) 580 char *type; 581 char *stop; 582 { 583 list *l; 584 definition *def; 585 586 for (l = defined; l != NULL; l = l->next) { 587 def = (definition *) l->val; 588 if (def->def_kind != DEF_PROGRAM) { 589 if (streq(def->def_name, stop)) { 590 return (1); 591 } else if (streq(def->def_name, type)) { 592 return (0); 593 } 594 } 595 } 596 return (1); 597 } 598