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 * $DragonFly: src/usr.bin/rpcgen/rpc_hout.c,v 1.4 2003/11/03 19:31:32 eirikn Exp $ 31 */ 32 33 #ident "@(#)rpc_hout.c 1.16 94/04/25 SMI" 34 35 /* 36 * rpc_hout.c, Header file outputter for the RPC protocol compiler 37 * Copyright (C) 1987, Sun Microsystems, Inc. 38 */ 39 #include <stdio.h> 40 #include <ctype.h> 41 #include "rpc_parse.h" 42 #include "rpc_util.h" 43 44 void storexdrfuncdecl( char *, int ); 45 static void pconstdef( definition * ); 46 static void pstructdef( definition * ); 47 static void puniondef( definition * ); 48 static void pprogramdef( definition * ); 49 static void pstructdef( definition * ); 50 static void penumdef( definition * ); 51 static void ptypedef( definition * ); 52 static void pdefine( char *, char * ); 53 static int undefined2( char *, char * ); 54 static void parglist( proc_list *, char * ); 55 static void pprocdef( proc_list *, version_list *, char *, int, int ); 56 void pdeclaration( char *, declaration *, int, char * ); 57 58 static char RESULT[] = "clnt_res"; 59 60 61 /* 62 * Print the C-version of an xdr definition 63 */ 64 void 65 print_datadef(def) 66 definition *def; 67 { 68 69 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 70 return; 71 72 if (def->def_kind != DEF_CONST) { 73 f_print(fout, "\n"); 74 } 75 switch (def->def_kind) { 76 case DEF_STRUCT: 77 pstructdef(def); 78 break; 79 case DEF_UNION: 80 puniondef(def); 81 break; 82 case DEF_ENUM: 83 penumdef(def); 84 break; 85 case DEF_TYPEDEF: 86 ptypedef(def); 87 break; 88 case DEF_PROGRAM: 89 pprogramdef(def); 90 break; 91 case DEF_CONST: 92 pconstdef(def); 93 break; 94 } 95 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 96 storexdrfuncdecl(def->def_name, 97 def->def_kind != DEF_TYPEDEF || 98 !isvectordef(def->def.ty.old_type, 99 def->def.ty.rel)); 100 } 101 } 102 103 104 void 105 print_funcdef(def) 106 definition *def; 107 { 108 switch (def->def_kind) { 109 case DEF_PROGRAM: 110 f_print(fout, "\n"); 111 pprogramdef(def); 112 break; 113 default: 114 } 115 } 116 117 /* store away enough information to allow the XDR functions to be spat 118 out at the end of the file */ 119 120 void 121 storexdrfuncdecl(name, pointerp) 122 char *name; 123 int pointerp; 124 { 125 xdrfunc * xdrptr; 126 127 xdrptr = (xdrfunc *) malloc(sizeof (struct xdrfunc)); 128 129 xdrptr->name = name; 130 xdrptr->pointerp = pointerp; 131 xdrptr->next = NULL; 132 133 if (xdrfunc_tail == NULL){ 134 xdrfunc_head = xdrptr; 135 xdrfunc_tail = xdrptr; 136 } else { 137 xdrfunc_tail->next = xdrptr; 138 xdrfunc_tail = xdrptr; 139 } 140 141 142 } 143 144 void 145 print_xdr_func_def(name, pointerp, i) 146 char* name; 147 int pointerp; 148 int i; 149 { 150 if (i == 2) { 151 f_print(fout, "extern bool_t xdr_%s();\n", name); 152 return; 153 } 154 else 155 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 156 name, pointerp ? "*" : ""); 157 158 159 } 160 161 162 static void 163 pconstdef(def) 164 definition *def; 165 { 166 pdefine(def->def_name, def->def.co); 167 } 168 169 /* print out the definitions for the arguments of functions in the 170 header file 171 */ 172 static void 173 pargdef(def) 174 definition *def; 175 { 176 decl_list *l; 177 version_list *vers; 178 char *name; 179 proc_list *plist; 180 181 182 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 183 for (plist = vers->procs; plist != NULL; 184 plist = plist->next) { 185 186 if (!newstyle || plist->arg_num < 2) { 187 continue; /* old style or single args */ 188 } 189 name = plist->args.argname; 190 f_print(fout, "struct %s {\n", name); 191 for (l = plist->args.decls; 192 l != NULL; l = l->next) { 193 pdeclaration(name, &l->decl, 1, 194 ";\n"); 195 } 196 f_print(fout, "};\n"); 197 f_print(fout, "typedef struct %s %s;\n", 198 name, name); 199 storexdrfuncdecl(name, 1); 200 f_print(fout, "\n"); 201 } 202 } 203 } 204 205 206 static void 207 pstructdef(def) 208 definition *def; 209 { 210 decl_list *l; 211 char *name = def->def_name; 212 213 f_print(fout, "struct %s {\n", name); 214 for (l = def->def.st.decls; l != NULL; l = l->next) { 215 pdeclaration(name, &l->decl, 1, ";\n"); 216 } 217 f_print(fout, "};\n"); 218 f_print(fout, "typedef struct %s %s;\n", name, name); 219 } 220 221 static void 222 puniondef(def) 223 definition *def; 224 { 225 case_list *l; 226 char *name = def->def_name; 227 declaration *decl; 228 229 f_print(fout, "struct %s {\n", name); 230 decl = &def->def.un.enum_decl; 231 if (streq(decl->type, "bool")) { 232 f_print(fout, "\tbool_t %s;\n", decl->name); 233 } else { 234 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 235 } 236 f_print(fout, "\tunion {\n"); 237 for (l = def->def.un.cases; l != NULL; l = l->next) { 238 if (l->contflag == 0) 239 pdeclaration(name, &l->case_decl, 2, ";\n"); 240 } 241 decl = def->def.un.default_decl; 242 if (decl && !streq(decl->type, "void")) { 243 pdeclaration(name, decl, 2, ";\n"); 244 } 245 f_print(fout, "\t} %s_u;\n", name); 246 f_print(fout, "};\n"); 247 f_print(fout, "typedef struct %s %s;\n", name, name); 248 } 249 250 static void 251 pdefine(name, num) 252 char *name; 253 char *num; 254 { 255 f_print(fout, "#define\t%s %s\n", name, num); 256 } 257 258 static void 259 puldefine(name, num) 260 char *name; 261 char *num; 262 { 263 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 264 } 265 266 static int 267 define_printed(stop, start) 268 proc_list *stop; 269 version_list *start; 270 { 271 version_list *vers; 272 proc_list *proc; 273 274 for (vers = start; vers != NULL; vers = vers->next) { 275 for (proc = vers->procs; proc != NULL; proc = proc->next) { 276 if (proc == stop) { 277 return (0); 278 } else if (streq(proc->proc_name, stop->proc_name)) { 279 return (1); 280 } 281 } 282 } 283 abort(); 284 /* NOTREACHED */ 285 } 286 287 static void 288 pfreeprocdef(char * name, char *vers, int mode) 289 { 290 f_print(fout, "extern int "); 291 pvname(name, vers); 292 if (mode == 1) 293 f_print(fout,"_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 294 else 295 f_print(fout,"_freeresult();\n"); 296 297 298 } 299 300 static void 301 pprogramdef(def) 302 definition *def; 303 { 304 version_list *vers; 305 proc_list *proc; 306 int i; 307 char *ext; 308 309 pargdef(def); 310 311 puldefine(def->def_name, def->def.pr.prog_num); 312 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 313 if (tblflag) { 314 f_print(fout, 315 "extern struct rpcgen_table %s_%s_table[];\n", 316 locase(def->def_name), vers->vers_num); 317 f_print(fout, 318 "extern %s_%s_nproc;\n", 319 locase(def->def_name), vers->vers_num); 320 } 321 puldefine(vers->vers_name, vers->vers_num); 322 323 /* 324 * Print out 2 definitions, one for ANSI-C, another for 325 * old K & R C 326 */ 327 328 if(!Cflag){ 329 ext = "extern "; 330 for (proc = vers->procs; proc != NULL; 331 proc = proc->next) { 332 if (!define_printed(proc, 333 def->def.pr.versions)) { 334 puldefine(proc->proc_name, 335 proc->proc_num); 336 } 337 f_print(fout, "%s", ext); 338 pprocdef(proc, vers, NULL, 0, 2); 339 340 if (mtflag) { 341 f_print(fout, "%s", ext); 342 pprocdef(proc, vers, NULL, 1, 2); 343 } 344 } 345 pfreeprocdef(def->def_name, vers->vers_num, 2); 346 347 } else { 348 for (i = 1; i < 3; i++){ 349 if (i == 1){ 350 f_print(fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n"); 351 ext = "extern "; 352 }else{ 353 f_print(fout, "\n#else /* K&R C */\n"); 354 ext = "extern "; 355 } 356 357 for (proc = vers->procs; proc != NULL; 358 proc = proc->next) { 359 if (!define_printed(proc, 360 def->def.pr.versions)) { 361 puldefine(proc->proc_name, 362 proc->proc_num); 363 } 364 f_print(fout, "%s", ext); 365 pprocdef(proc, vers, "CLIENT *", 0, i); 366 f_print(fout, "%s", ext); 367 pprocdef(proc, vers, "struct svc_req *", 1, i); 368 } 369 pfreeprocdef(def->def_name, vers->vers_num, i); 370 } 371 f_print(fout, "#endif /* K&R C */\n"); 372 } 373 } 374 } 375 376 static void 377 pprocdef(proc, vp, addargtype, server_p, mode) 378 proc_list *proc; 379 version_list *vp; 380 char* addargtype; 381 int server_p; 382 int mode; 383 { 384 if (mtflag) {/* Print MT style stubs */ 385 if (server_p) 386 f_print(fout, "bool_t "); 387 else 388 f_print(fout, "enum clnt_stat "); 389 } else { 390 ptype(proc->res_prefix, proc->res_type, 1); 391 f_print(fout, "* "); 392 } 393 if (server_p) 394 pvname_svc(proc->proc_name, vp->vers_num); 395 else 396 pvname(proc->proc_name, vp->vers_num); 397 398 /* 399 * mode 1 = ANSI-C, mode 2 = K&R C 400 */ 401 if ( mode == 1) 402 parglist(proc, addargtype); 403 else 404 f_print(fout, "();\n"); 405 } 406 407 408 409 /* print out argument list of procedure */ 410 static void 411 parglist(proc, addargtype) 412 proc_list *proc; 413 char* addargtype; 414 { 415 decl_list *dl; 416 417 f_print(fout, "("); 418 if (proc->arg_num < 2 && newstyle && 419 streq(proc->args.decls->decl.type, "void")) { 420 /* 0 argument in new style: do nothing*/ 421 } 422 else { 423 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 424 ptype(dl->decl.prefix, dl->decl.type, 1); 425 if (!newstyle) 426 f_print(fout, "*"); 427 /* old style passes by reference */ 428 f_print(fout, ", "); 429 } 430 } 431 432 if (mtflag) { 433 ptype(proc->res_prefix, proc->res_type, 1); 434 f_print(fout, "*, "); 435 } 436 437 f_print(fout, "%s);\n", addargtype); 438 439 } 440 441 static void 442 penumdef(def) 443 definition *def; 444 { 445 char *name = def->def_name; 446 enumval_list *l; 447 char *last = NULL; 448 int count = 0; 449 450 f_print(fout, "enum %s {\n", name); 451 for (l = def->def.en.vals; l != NULL; l = l->next) { 452 f_print(fout, "\t%s", l->name); 453 if (l->assignment) { 454 f_print(fout, " = %s", l->assignment); 455 last = l->assignment; 456 count = 1; 457 } else { 458 if (last == NULL) { 459 f_print(fout, " = %d", count++); 460 } else { 461 f_print(fout, " = %s + %d", last, count++); 462 } 463 } 464 if (l->next) 465 f_print(fout, ",\n"); 466 else 467 f_print(fout, "\n"); 468 } 469 f_print(fout, "};\n"); 470 f_print(fout, "typedef enum %s %s;\n", name, name); 471 } 472 473 static void 474 ptypedef(def) 475 definition *def; 476 { 477 char *name = def->def_name; 478 char *old = def->def.ty.old_type; 479 char prefix[8]; /* enough to contain "struct ", including NUL */ 480 relation rel = def->def.ty.rel; 481 482 483 if (!streq(name, old)) { 484 if (streq(old, "string")) { 485 old = "char"; 486 rel = REL_POINTER; 487 } else if (streq(old, "opaque")) { 488 old = "char"; 489 } else if (streq(old, "bool")) { 490 old = "bool_t"; 491 } 492 if (undefined2(old, name) && def->def.ty.old_prefix) { 493 s_print(prefix, "%s ", def->def.ty.old_prefix); 494 } else { 495 prefix[0] = 0; 496 } 497 f_print(fout, "typedef "); 498 switch (rel) { 499 case REL_ARRAY: 500 f_print(fout, "struct {\n"); 501 f_print(fout, "\tu_int %s_len;\n", name); 502 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 503 f_print(fout, "} %s", name); 504 break; 505 case REL_POINTER: 506 f_print(fout, "%s%s *%s", prefix, old, name); 507 break; 508 case REL_VECTOR: 509 f_print(fout, "%s%s %s[%s]", prefix, old, name, 510 def->def.ty.array_max); 511 break; 512 case REL_ALIAS: 513 f_print(fout, "%s%s %s", prefix, old, name); 514 break; 515 } 516 f_print(fout, ";\n"); 517 } 518 } 519 520 void 521 pdeclaration(name, dec, tab, separator) 522 char *name; 523 declaration *dec; 524 int tab; 525 char *separator; 526 { 527 char buf[8]; /* enough to hold "struct ", include NUL */ 528 char *prefix; 529 char *type; 530 531 if (streq(dec->type, "void")) { 532 return; 533 } 534 tabify(fout, tab); 535 if (streq(dec->type, name) && !dec->prefix) { 536 f_print(fout, "struct "); 537 } 538 if (streq(dec->type, "string")) { 539 f_print(fout, "char *%s", dec->name); 540 } else { 541 prefix = ""; 542 if (streq(dec->type, "bool")) { 543 type = "bool_t"; 544 } else if (streq(dec->type, "opaque")) { 545 type = "char"; 546 } else { 547 if (dec->prefix) { 548 s_print(buf, "%s ", dec->prefix); 549 prefix = buf; 550 } 551 type = dec->type; 552 } 553 switch (dec->rel) { 554 case REL_ALIAS: 555 f_print(fout, "%s%s %s", prefix, type, dec->name); 556 break; 557 case REL_VECTOR: 558 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 559 dec->array_max); 560 break; 561 case REL_POINTER: 562 f_print(fout, "%s%s *%s", prefix, type, dec->name); 563 break; 564 case REL_ARRAY: 565 f_print(fout, "struct {\n"); 566 tabify(fout, tab); 567 f_print(fout, "\tu_int %s_len;\n", dec->name); 568 tabify(fout, tab); 569 f_print(fout, 570 "\t%s%s *%s_val;\n", prefix, type, dec->name); 571 tabify(fout, tab); 572 f_print(fout, "} %s", dec->name); 573 break; 574 } 575 } 576 f_print(fout, separator); 577 } 578 579 static int 580 undefined2(type, stop) 581 char *type; 582 char *stop; 583 { 584 list *l; 585 definition *def; 586 587 for (l = defined; l != NULL; l = l->next) { 588 def = (definition *) l->val; 589 if (def->def_kind != DEF_PROGRAM) { 590 if (streq(def->def_name, stop)) { 591 return (1); 592 } else if (streq(def->def_name, type)) { 593 return (0); 594 } 595 } 596 } 597 return (1); 598 } 599