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 #ident "@(#)rpc_hout.c 1.16 94/04/25 SMI" 31 32 #ifndef lint 33 static char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI"; 34 #endif 35 36 /* 37 * rpc_hout.c, Header file outputter for the RPC protocol compiler 38 * Copyright (C) 1987, Sun Microsystems, Inc. 39 */ 40 #include <stdio.h> 41 #include <ctype.h> 42 #include "rpc_parse.h" 43 #include "rpc_util.h" 44 45 void storexdrfuncdecl __P(( char *, int )); 46 static void pconstdef __P(( definition * )); 47 static void pstructdef __P(( definition * )); 48 static void puniondef __P(( definition * )); 49 static void pprogramdef __P(( definition * )); 50 static void pstructdef __P(( definition * )); 51 static void penumdef __P(( definition * )); 52 static void ptypedef __P(( definition * )); 53 static void pdefine __P(( char *, char * )); 54 static int undefined2 __P(( char *, char * )); 55 static void parglist __P(( proc_list *, char * )); 56 static void pprocdef __P(( proc_list *, version_list *, char *, int, int )); 57 void pdeclaration __P(( char *, declaration *, int, char * )); 58 59 static char RESULT[] = "clnt_res"; 60 61 62 /* 63 * Print the C-version of an xdr definition 64 */ 65 void 66 print_datadef(def) 67 definition *def; 68 { 69 70 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 71 return; 72 73 if (def->def_kind != DEF_CONST) { 74 f_print(fout, "\n"); 75 } 76 switch (def->def_kind) { 77 case DEF_STRUCT: 78 pstructdef(def); 79 break; 80 case DEF_UNION: 81 puniondef(def); 82 break; 83 case DEF_ENUM: 84 penumdef(def); 85 break; 86 case DEF_TYPEDEF: 87 ptypedef(def); 88 break; 89 case DEF_PROGRAM: 90 pprogramdef(def); 91 break; 92 case DEF_CONST: 93 pconstdef(def); 94 break; 95 } 96 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 97 storexdrfuncdecl(def->def_name, 98 def->def_kind != DEF_TYPEDEF || 99 !isvectordef(def->def.ty.old_type, 100 def->def.ty.rel)); 101 } 102 } 103 104 105 void 106 print_funcdef(def) 107 definition *def; 108 { 109 switch (def->def_kind) { 110 case DEF_PROGRAM: 111 f_print(fout, "\n"); 112 pprogramdef(def); 113 break; 114 default: 115 } 116 } 117 118 /* store away enough information to allow the XDR functions to be spat 119 out at the end of the file */ 120 121 void 122 storexdrfuncdecl(name, pointerp) 123 char *name; 124 int pointerp; 125 { 126 xdrfunc * xdrptr; 127 128 xdrptr = (xdrfunc *) malloc(sizeof (struct xdrfunc)); 129 130 xdrptr->name = name; 131 xdrptr->pointerp = pointerp; 132 xdrptr->next = NULL; 133 134 if (xdrfunc_tail == NULL){ 135 xdrfunc_head = xdrptr; 136 xdrfunc_tail = xdrptr; 137 } else { 138 xdrfunc_tail->next = xdrptr; 139 xdrfunc_tail = xdrptr; 140 } 141 142 143 } 144 145 void 146 print_xdr_func_def(name, pointerp, i) 147 char* name; 148 int pointerp; 149 int i; 150 { 151 if (i == 2) { 152 f_print(fout, "extern bool_t xdr_%s();\n", name); 153 return; 154 } 155 else 156 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 157 name, pointerp ? "*" : ""); 158 159 160 } 161 162 163 static void 164 pconstdef(def) 165 definition *def; 166 { 167 pdefine(def->def_name, def->def.co); 168 } 169 170 /* print out the definitions for the arguments of functions in the 171 header file 172 */ 173 static void 174 pargdef(def) 175 definition *def; 176 { 177 decl_list *l; 178 version_list *vers; 179 char *name; 180 proc_list *plist; 181 182 183 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 184 for (plist = vers->procs; plist != NULL; 185 plist = plist->next) { 186 187 if (!newstyle || plist->arg_num < 2) { 188 continue; /* old style or single args */ 189 } 190 name = plist->args.argname; 191 f_print(fout, "struct %s {\n", name); 192 for (l = plist->args.decls; 193 l != NULL; l = l->next) { 194 pdeclaration(name, &l->decl, 1, 195 ";\n"); 196 } 197 f_print(fout, "};\n"); 198 f_print(fout, "typedef struct %s %s;\n", 199 name, name); 200 storexdrfuncdecl(name, 1); 201 f_print(fout, "\n"); 202 } 203 } 204 } 205 206 207 static void 208 pstructdef(def) 209 definition *def; 210 { 211 decl_list *l; 212 char *name = def->def_name; 213 214 f_print(fout, "struct %s {\n", name); 215 for (l = def->def.st.decls; l != NULL; l = l->next) { 216 pdeclaration(name, &l->decl, 1, ";\n"); 217 } 218 f_print(fout, "};\n"); 219 f_print(fout, "typedef struct %s %s;\n", name, name); 220 } 221 222 static void 223 puniondef(def) 224 definition *def; 225 { 226 case_list *l; 227 char *name = def->def_name; 228 declaration *decl; 229 230 f_print(fout, "struct %s {\n", name); 231 decl = &def->def.un.enum_decl; 232 if (streq(decl->type, "bool")) { 233 f_print(fout, "\tbool_t %s;\n", decl->name); 234 } else { 235 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 236 } 237 f_print(fout, "\tunion {\n"); 238 for (l = def->def.un.cases; l != NULL; l = l->next) { 239 if (l->contflag == 0) 240 pdeclaration(name, &l->case_decl, 2, ";\n"); 241 } 242 decl = def->def.un.default_decl; 243 if (decl && !streq(decl->type, "void")) { 244 pdeclaration(name, decl, 2, ";\n"); 245 } 246 f_print(fout, "\t} %s_u;\n", name); 247 f_print(fout, "};\n"); 248 f_print(fout, "typedef struct %s %s;\n", name, name); 249 } 250 251 static void 252 pdefine(name, num) 253 char *name; 254 char *num; 255 { 256 f_print(fout, "#define\t%s %s\n", name, num); 257 } 258 259 static void 260 puldefine(name, num) 261 char *name; 262 char *num; 263 { 264 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 265 } 266 267 static int 268 define_printed(stop, start) 269 proc_list *stop; 270 version_list *start; 271 { 272 version_list *vers; 273 proc_list *proc; 274 275 for (vers = start; vers != NULL; vers = vers->next) { 276 for (proc = vers->procs; proc != NULL; proc = proc->next) { 277 if (proc == stop) { 278 return (0); 279 } else if (streq(proc->proc_name, stop->proc_name)) { 280 return (1); 281 } 282 } 283 } 284 abort(); 285 /* NOTREACHED */ 286 } 287 288 static void 289 pfreeprocdef(char * name, char *vers, int mode) 290 { 291 f_print(fout, "extern int "); 292 pvname(name, vers); 293 if (mode == 1) 294 f_print(fout,"_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 295 else 296 f_print(fout,"_freeresult();\n"); 297 298 299 } 300 301 static void 302 pprogramdef(def) 303 definition *def; 304 { 305 version_list *vers; 306 proc_list *proc; 307 int i; 308 char *ext; 309 310 pargdef(def); 311 312 puldefine(def->def_name, def->def.pr.prog_num); 313 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 314 if (tblflag) { 315 f_print(fout, 316 "extern struct rpcgen_table %s_%s_table[];\n", 317 locase(def->def_name), vers->vers_num); 318 f_print(fout, 319 "extern %s_%s_nproc;\n", 320 locase(def->def_name), vers->vers_num); 321 } 322 puldefine(vers->vers_name, vers->vers_num); 323 324 /* 325 * Print out 2 definitions, one for ANSI-C, another for 326 * old K & R C 327 */ 328 329 if(!Cflag){ 330 ext = "extern "; 331 for (proc = vers->procs; proc != NULL; 332 proc = proc->next) { 333 if (!define_printed(proc, 334 def->def.pr.versions)) { 335 puldefine(proc->proc_name, 336 proc->proc_num); 337 } 338 f_print(fout, "%s", ext); 339 pprocdef(proc, vers, NULL, 0, 2); 340 341 if (mtflag) { 342 f_print(fout, "%s", ext); 343 pprocdef(proc, vers, NULL, 1, 2); 344 } 345 } 346 pfreeprocdef(def->def_name, vers->vers_num, 2); 347 348 } else { 349 for (i = 1; i < 3; i++){ 350 if (i == 1){ 351 f_print(fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n"); 352 ext = "extern "; 353 }else{ 354 f_print(fout, "\n#else /* K&R C */\n"); 355 ext = "extern "; 356 } 357 358 for (proc = vers->procs; proc != NULL; 359 proc = proc->next) { 360 if (!define_printed(proc, 361 def->def.pr.versions)) { 362 puldefine(proc->proc_name, 363 proc->proc_num); 364 } 365 f_print(fout, "%s", ext); 366 pprocdef(proc, vers, "CLIENT *", 0, i); 367 f_print(fout, "%s", ext); 368 pprocdef(proc, vers, "struct svc_req *", 1, i); 369 } 370 pfreeprocdef(def->def_name, vers->vers_num, i); 371 } 372 f_print(fout, "#endif /* K&R C */\n"); 373 } 374 } 375 } 376 377 static void 378 pprocdef(proc, vp, addargtype, server_p, mode) 379 proc_list *proc; 380 version_list *vp; 381 char* addargtype; 382 int server_p; 383 int mode; 384 { 385 if (mtflag) {/* Print MT style stubs */ 386 if (server_p) 387 f_print(fout, "bool_t "); 388 else 389 f_print(fout, "enum clnt_stat "); 390 } else { 391 ptype(proc->res_prefix, proc->res_type, 1); 392 f_print(fout, "* "); 393 } 394 if (server_p) 395 pvname_svc(proc->proc_name, vp->vers_num); 396 else 397 pvname(proc->proc_name, vp->vers_num); 398 399 /* 400 * mode 1 = ANSI-C, mode 2 = K&R C 401 */ 402 if ( mode == 1) 403 parglist(proc, addargtype); 404 else 405 f_print(fout, "();\n"); 406 } 407 408 409 410 /* print out argument list of procedure */ 411 static void 412 parglist(proc, addargtype) 413 proc_list *proc; 414 char* addargtype; 415 { 416 decl_list *dl; 417 418 f_print(fout, "("); 419 if (proc->arg_num < 2 && newstyle && 420 streq(proc->args.decls->decl.type, "void")) { 421 /* 0 argument in new style: do nothing*/ 422 } 423 else { 424 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 425 ptype(dl->decl.prefix, dl->decl.type, 1); 426 if (!newstyle) 427 f_print(fout, "*"); 428 /* old style passes by reference */ 429 f_print(fout, ", "); 430 } 431 } 432 433 if (mtflag) { 434 ptype(proc->res_prefix, proc->res_type, 1); 435 f_print(fout, "*, "); 436 } 437 438 f_print(fout, "%s);\n", addargtype); 439 440 } 441 442 static void 443 penumdef(def) 444 definition *def; 445 { 446 char *name = def->def_name; 447 enumval_list *l; 448 char *last = NULL; 449 int count = 0; 450 451 f_print(fout, "enum %s {\n", name); 452 for (l = def->def.en.vals; l != NULL; l = l->next) { 453 f_print(fout, "\t%s", l->name); 454 if (l->assignment) { 455 f_print(fout, " = %s", l->assignment); 456 last = l->assignment; 457 count = 1; 458 } else { 459 if (last == NULL) { 460 f_print(fout, " = %d", count++); 461 } else { 462 f_print(fout, " = %s + %d", last, count++); 463 } 464 } 465 if (l->next) 466 f_print(fout, ",\n"); 467 else 468 f_print(fout, "\n"); 469 } 470 f_print(fout, "};\n"); 471 f_print(fout, "typedef enum %s %s;\n", name, name); 472 } 473 474 static void 475 ptypedef(def) 476 definition *def; 477 { 478 char *name = def->def_name; 479 char *old = def->def.ty.old_type; 480 char prefix[8]; /* enough to contain "struct ", including NUL */ 481 relation rel = def->def.ty.rel; 482 483 484 if (!streq(name, old)) { 485 if (streq(old, "string")) { 486 old = "char"; 487 rel = REL_POINTER; 488 } else if (streq(old, "opaque")) { 489 old = "char"; 490 } else if (streq(old, "bool")) { 491 old = "bool_t"; 492 } 493 if (undefined2(old, name) && def->def.ty.old_prefix) { 494 s_print(prefix, "%s ", def->def.ty.old_prefix); 495 } else { 496 prefix[0] = 0; 497 } 498 f_print(fout, "typedef "); 499 switch (rel) { 500 case REL_ARRAY: 501 f_print(fout, "struct {\n"); 502 f_print(fout, "\tu_int %s_len;\n", name); 503 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 504 f_print(fout, "} %s", name); 505 break; 506 case REL_POINTER: 507 f_print(fout, "%s%s *%s", prefix, old, name); 508 break; 509 case REL_VECTOR: 510 f_print(fout, "%s%s %s[%s]", prefix, old, name, 511 def->def.ty.array_max); 512 break; 513 case REL_ALIAS: 514 f_print(fout, "%s%s %s", prefix, old, name); 515 break; 516 } 517 f_print(fout, ";\n"); 518 } 519 } 520 521 void 522 pdeclaration(name, dec, tab, separator) 523 char *name; 524 declaration *dec; 525 int tab; 526 char *separator; 527 { 528 char buf[8]; /* enough to hold "struct ", include NUL */ 529 char *prefix; 530 char *type; 531 532 if (streq(dec->type, "void")) { 533 return; 534 } 535 tabify(fout, tab); 536 if (streq(dec->type, name) && !dec->prefix) { 537 f_print(fout, "struct "); 538 } 539 if (streq(dec->type, "string")) { 540 f_print(fout, "char *%s", dec->name); 541 } else { 542 prefix = ""; 543 if (streq(dec->type, "bool")) { 544 type = "bool_t"; 545 } else if (streq(dec->type, "opaque")) { 546 type = "char"; 547 } else { 548 if (dec->prefix) { 549 s_print(buf, "%s ", dec->prefix); 550 prefix = buf; 551 } 552 type = dec->type; 553 } 554 switch (dec->rel) { 555 case REL_ALIAS: 556 f_print(fout, "%s%s %s", prefix, type, dec->name); 557 break; 558 case REL_VECTOR: 559 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 560 dec->array_max); 561 break; 562 case REL_POINTER: 563 f_print(fout, "%s%s *%s", prefix, type, dec->name); 564 break; 565 case REL_ARRAY: 566 f_print(fout, "struct {\n"); 567 tabify(fout, tab); 568 f_print(fout, "\tu_int %s_len;\n", dec->name); 569 tabify(fout, tab); 570 f_print(fout, 571 "\t%s%s *%s_val;\n", prefix, type, dec->name); 572 tabify(fout, tab); 573 f_print(fout, "} %s", dec->name); 574 break; 575 } 576 } 577 f_print(fout, separator); 578 } 579 580 static int 581 undefined2(type, stop) 582 char *type; 583 char *stop; 584 { 585 list *l; 586 definition *def; 587 588 for (l = defined; l != NULL; l = l->next) { 589 def = (definition *) l->val; 590 if (def->def_kind != DEF_PROGRAM) { 591 if (streq(def->def_name, stop)) { 592 return (1); 593 } else if (streq(def->def_name, type)) { 594 return (0); 595 } 596 } 597 } 598 return (1); 599 } 600