rpc_hout.c revision 146833
1257378Sbdrewery/* 2257378Sbdrewery * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3257378Sbdrewery * unrestricted use provided that this legend is included on all tape 4257378Sbdrewery * media and as a part of the software program in whole or part. Users 5257378Sbdrewery * may copy or modify Sun RPC without charge, but are not authorized 6257378Sbdrewery * to license or distribute it to anyone else except as part of a product or 7257378Sbdrewery * program developed by the user. 8257378Sbdrewery * 9257378Sbdrewery * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10257378Sbdrewery * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11257378Sbdrewery * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12257378Sbdrewery * 13257378Sbdrewery * Sun RPC is provided with no support and without any obligation on the 14257378Sbdrewery * part of Sun Microsystems, Inc. to assist in its use, correction, 15257378Sbdrewery * modification or enhancement. 16257378Sbdrewery * 17257378Sbdrewery * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18257378Sbdrewery * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19257378Sbdrewery * OR ANY PART THEREOF. 20257378Sbdrewery * 21257378Sbdrewery * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22257378Sbdrewery * or profits or other special, indirect and consequential damages, even if 23257378Sbdrewery * Sun has been advised of the possibility of such damages. 24257378Sbdrewery * 25257378Sbdrewery * Sun Microsystems, Inc. 26257378Sbdrewery * 2550 Garcia Avenue 27259266Sbdrewery * Mountain View, California 94043 28257378Sbdrewery */ 29257378Sbdrewery 30257378Sbdrewery#if 0 31257378Sbdrewery#ifndef lint 32257400Sjoel#ident "@(#)rpc_hout.c 1.16 94/04/25 SMI" 33257378Sbdrewerystatic char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI"; 34257378Sbdrewery#endif 35257378Sbdrewery#endif 36257378Sbdrewery 37257378Sbdrewery#include <sys/cdefs.h> 38257505Sbdrewery__FBSDID("$FreeBSD: head/usr.bin/rpcgen/rpc_hout.c 146833 2005-05-31 20:00:29Z stefanf $"); 39257378Sbdrewery 40257378Sbdrewery/* 41257378Sbdrewery * rpc_hout.c, Header file outputter for the RPC protocol compiler 42257378Sbdrewery * Copyright (C) 1987, Sun Microsystems, Inc. 43257378Sbdrewery */ 44257505Sbdrewery#include <stdio.h> 45257378Sbdrewery#include <ctype.h> 46257378Sbdrewery#include "rpc_parse.h" 47257378Sbdrewery#include "rpc_util.h" 48257378Sbdrewery 49257378Sbdreweryvoid storexdrfuncdecl( char *, int ); 50257378Sbdrewerystatic void pconstdef( definition * ); 51257378Sbdrewerystatic void pstructdef( definition * ); 52257378Sbdrewerystatic void puniondef( definition * ); 53257378Sbdrewerystatic void pprogramdef( definition * ); 54257378Sbdrewerystatic void pstructdef( definition * ); 55257378Sbdrewerystatic void penumdef( definition * ); 56257378Sbdrewerystatic void ptypedef( definition * ); 57257378Sbdrewerystatic void pdefine( char *, char * ); 58257378Sbdrewerystatic int undefined2( char *, char * ); 59257378Sbdrewerystatic void parglist( proc_list *, char * ); 60257505Sbdrewerystatic void pprocdef( proc_list *, version_list *, char *, int, int ); 61257378Sbdreweryvoid pdeclaration( char *, declaration *, int, char * ); 62257378Sbdrewery 63257378Sbdrewery/* 64257378Sbdrewery * Print the C-version of an xdr definition 65257378Sbdrewery */ 66257378Sbdreweryvoid 67257378Sbdreweryprint_datadef(def) 68257505Sbdrewery definition *def; 69257378Sbdrewery{ 70257378Sbdrewery 71257378Sbdrewery if (def->def_kind == DEF_PROGRAM) /* handle data only */ 72257378Sbdrewery return; 73257378Sbdrewery 74257378Sbdrewery if (def->def_kind != DEF_CONST) { 75257378Sbdrewery f_print(fout, "\n"); 76257378Sbdrewery } 77257505Sbdrewery switch (def->def_kind) { 78257505Sbdrewery case DEF_STRUCT: 79257505Sbdrewery pstructdef(def); 80257505Sbdrewery break; 81257505Sbdrewery case DEF_UNION: 82257378Sbdrewery puniondef(def); 83257378Sbdrewery break; 84257378Sbdrewery case DEF_ENUM: 85257378Sbdrewery penumdef(def); 86257378Sbdrewery break; 87257378Sbdrewery case DEF_TYPEDEF: 88257505Sbdrewery ptypedef(def); 89257378Sbdrewery break; 90257378Sbdrewery case DEF_PROGRAM: 91257378Sbdrewery pprogramdef(def); 92257505Sbdrewery break; 93257505Sbdrewery case DEF_CONST: 94257505Sbdrewery pconstdef(def); 95257505Sbdrewery break; 96257505Sbdrewery } 97257378Sbdrewery if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 98257378Sbdrewery storexdrfuncdecl(def->def_name, 99257378Sbdrewery def->def_kind != DEF_TYPEDEF || 100257378Sbdrewery !isvectordef(def->def.ty.old_type, 101257378Sbdrewery def->def.ty.rel)); 102257378Sbdrewery } 103257378Sbdrewery} 104257378Sbdrewery 105257378Sbdrewery 106257378Sbdreweryvoid 107257378Sbdreweryprint_funcdef(def) 108257378Sbdrewery definition *def; 109257378Sbdrewery{ 110257378Sbdrewery switch (def->def_kind) { 111258348Sbdrewery case DEF_PROGRAM: 112257378Sbdrewery f_print(fout, "\n"); 113257378Sbdrewery pprogramdef(def); 114257378Sbdrewery break; 115257378Sbdrewery default: 116257378Sbdrewery break; 117257378Sbdrewery } 118257378Sbdrewery} 119257378Sbdrewery 120257378Sbdrewery/* store away enough information to allow the XDR functions to be spat 121257378Sbdrewery out at the end of the file */ 122257378Sbdrewery 123257378Sbdreweryvoid 124257378Sbdrewerystorexdrfuncdecl(name, pointerp) 125257378Sbdrewerychar *name; 126257378Sbdreweryint pointerp; 127257378Sbdrewery{ 128257378Sbdrewery xdrfunc * xdrptr; 129257378Sbdrewery 130257378Sbdrewery xdrptr = XALLOC(struct xdrfunc); 131257378Sbdrewery 132257378Sbdrewery xdrptr->name = name; 133257378Sbdrewery xdrptr->pointerp = pointerp; 134257378Sbdrewery xdrptr->next = NULL; 135257378Sbdrewery 136257378Sbdrewery if (xdrfunc_tail == NULL){ 137257378Sbdrewery xdrfunc_head = xdrptr; 138257378Sbdrewery xdrfunc_tail = xdrptr; 139257378Sbdrewery } else { 140257378Sbdrewery xdrfunc_tail->next = xdrptr; 141257378Sbdrewery xdrfunc_tail = xdrptr; 142257378Sbdrewery } 143257378Sbdrewery 144257378Sbdrewery 145257378Sbdrewery} 146257378Sbdrewery 147257378Sbdreweryvoid 148257378Sbdreweryprint_xdr_func_def(name, pointerp, i) 149257378Sbdrewerychar* name; 150257668Sbdreweryint pointerp; 151257378Sbdreweryint i; 152257378Sbdrewery{ 153257378Sbdrewery if (i == 2) { 154257378Sbdrewery f_print(fout, "extern bool_t xdr_%s();\n", name); 155259266Sbdrewery return; 156257378Sbdrewery } 157257400Sjoel else 158257378Sbdrewery f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 159257378Sbdrewery name, pointerp ? "*" : ""); 160257378Sbdrewery 161257378Sbdrewery 162257378Sbdrewery} 163257378Sbdrewery 164257378Sbdrewery 165257378Sbdrewerystatic void 166257378Sbdrewerypconstdef(def) 167257378Sbdrewery definition *def; 168257378Sbdrewery{ 169257378Sbdrewery pdefine(def->def_name, def->def.co); 170257378Sbdrewery} 171257378Sbdrewery 172257378Sbdrewery/* print out the definitions for the arguments of functions in the 173257378Sbdrewery header file 174257378Sbdrewery*/ 175257378Sbdrewerystatic void 176257378Sbdrewerypargdef(def) 177257378Sbdrewery definition *def; 178257378Sbdrewery{ 179257378Sbdrewery decl_list *l; 180257378Sbdrewery version_list *vers; 181257378Sbdrewery char *name; 182257378Sbdrewery proc_list *plist; 183257378Sbdrewery 184257378Sbdrewery 185257378Sbdrewery for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 186257378Sbdrewery for (plist = vers->procs; plist != NULL; 187257378Sbdrewery plist = plist->next) { 188257378Sbdrewery 189257378Sbdrewery if (!newstyle || plist->arg_num < 2) { 190257378Sbdrewery continue; /* old style or single args */ 191257378Sbdrewery } 192257378Sbdrewery name = plist->args.argname; 193257378Sbdrewery f_print(fout, "struct %s {\n", name); 194257378Sbdrewery for (l = plist->args.decls; 195257378Sbdrewery l != NULL; l = l->next) { 196257378Sbdrewery pdeclaration(name, &l->decl, 1, 197257378Sbdrewery ";\n"); 198259266Sbdrewery } 199259266Sbdrewery f_print(fout, "};\n"); 200259266Sbdrewery f_print(fout, "typedef struct %s %s;\n", 201257378Sbdrewery name, name); 202257378Sbdrewery storexdrfuncdecl(name, 1); 203257378Sbdrewery f_print(fout, "\n"); 204259266Sbdrewery } 205259266Sbdrewery } 206259266Sbdrewery} 207257378Sbdrewery 208257378Sbdrewery 209257378Sbdrewerystatic void 210257378Sbdrewerypstructdef(def) 211259266Sbdrewery definition *def; 212257378Sbdrewery{ 213257378Sbdrewery decl_list *l; 214257378Sbdrewery char *name = def->def_name; 215257378Sbdrewery 216257378Sbdrewery f_print(fout, "struct %s {\n", name); 217257378Sbdrewery for (l = def->def.st.decls; l != NULL; l = l->next) { 218257378Sbdrewery pdeclaration(name, &l->decl, 1, ";\n"); 219257378Sbdrewery } 220257378Sbdrewery f_print(fout, "};\n"); 221257378Sbdrewery f_print(fout, "typedef struct %s %s;\n", name, name); 222257378Sbdrewery} 223257378Sbdrewery 224257378Sbdrewerystatic void 225257378Sbdrewerypuniondef(def) 226257378Sbdrewery definition *def; 227257378Sbdrewery{ 228257378Sbdrewery case_list *l; 229257378Sbdrewery char *name = def->def_name; 230257378Sbdrewery declaration *decl; 231257378Sbdrewery 232257378Sbdrewery f_print(fout, "struct %s {\n", name); 233257378Sbdrewery decl = &def->def.un.enum_decl; 234257378Sbdrewery if (streq(decl->type, "bool")) { 235257378Sbdrewery f_print(fout, "\tbool_t %s;\n", decl->name); 236257378Sbdrewery } else { 237257378Sbdrewery f_print(fout, "\t%s %s;\n", decl->type, decl->name); 238257378Sbdrewery } 239257378Sbdrewery f_print(fout, "\tunion {\n"); 240257378Sbdrewery for (l = def->def.un.cases; l != NULL; l = l->next) { 241257378Sbdrewery if (l->contflag == 0) 242257378Sbdrewery pdeclaration(name, &l->case_decl, 2, ";\n"); 243257378Sbdrewery } 244257378Sbdrewery decl = def->def.un.default_decl; 245257378Sbdrewery if (decl && !streq(decl->type, "void")) { 246257378Sbdrewery pdeclaration(name, decl, 2, ";\n"); 247257378Sbdrewery } 248257378Sbdrewery f_print(fout, "\t} %s_u;\n", name); 249257378Sbdrewery f_print(fout, "};\n"); 250257378Sbdrewery f_print(fout, "typedef struct %s %s;\n", name, name); 251257378Sbdrewery} 252257378Sbdrewery 253257378Sbdrewerystatic void 254257378Sbdrewerypdefine(name, num) 255257378Sbdrewery char *name; 256257378Sbdrewery char *num; 257257378Sbdrewery{ 258257378Sbdrewery f_print(fout, "#define\t%s %s\n", name, num); 259257378Sbdrewery} 260257378Sbdrewery 261257378Sbdrewerystatic void 262257378Sbdrewerypuldefine(name, num) 263257378Sbdrewery char *name; 264257378Sbdrewery char *num; 265257378Sbdrewery{ 266257378Sbdrewery f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 267257378Sbdrewery} 268257400Sjoel 269257400Sjoelstatic int 270257378Sbdrewerydefine_printed(stop, start) 271257378Sbdrewery proc_list *stop; 272257378Sbdrewery version_list *start; 273257378Sbdrewery{ 274257378Sbdrewery version_list *vers; 275257378Sbdrewery proc_list *proc; 276257378Sbdrewery 277257378Sbdrewery for (vers = start; vers != NULL; vers = vers->next) { 278257378Sbdrewery for (proc = vers->procs; proc != NULL; proc = proc->next) { 279257378Sbdrewery if (proc == stop) { 280257378Sbdrewery return (0); 281257378Sbdrewery } else if (streq(proc->proc_name, stop->proc_name)) { 282 return (1); 283 } 284 } 285 } 286 abort(); 287 /* NOTREACHED */ 288} 289 290static void 291pfreeprocdef(char * name, char *vers, int mode) 292{ 293 f_print(fout, "extern int "); 294 pvname(name, vers); 295 if (mode == 1) 296 f_print(fout,"_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 297 else 298 f_print(fout,"_freeresult();\n"); 299 300 301} 302 303static void 304pdispatch(char * name, char *vers, int mode) 305{ 306 307 f_print(fout, "void "); 308 pvname(name, vers); 309 if (mode == 1) 310 f_print(fout, 311 "(struct svc_req *rqstp, register SVCXPRT *transp);\n"); 312 else 313 f_print(fout,"();\n"); 314 315} 316 317static void 318pprogramdef(def) 319 definition *def; 320{ 321 version_list *vers; 322 proc_list *proc; 323 int i; 324 char *ext; 325 326 pargdef(def); 327 328 puldefine(def->def_name, def->def.pr.prog_num); 329 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 330 if (tblflag) { 331 f_print(fout, 332 "extern struct rpcgen_table %s_%s_table[];\n", 333 locase(def->def_name), vers->vers_num); 334 f_print(fout, 335 "extern %s_%s_nproc;\n", 336 locase(def->def_name), vers->vers_num); 337 } 338 puldefine(vers->vers_name, vers->vers_num); 339 340 /* 341 * Print out 2 definitions, one for ANSI-C, another for 342 * old K & R C 343 */ 344 345 if(!Cflag){ 346 ext = "extern "; 347 f_print(fout, "%s", ext); 348 pdispatch(def->def_name, vers->vers_num, 2); 349 for (proc = vers->procs; proc != NULL; 350 proc = proc->next) { 351 if (!define_printed(proc, 352 def->def.pr.versions)) { 353 puldefine(proc->proc_name, 354 proc->proc_num); 355 } 356 f_print(fout, "%s", ext); 357 pprocdef(proc, vers, NULL, 0, 2); 358 359 if (mtflag) { 360 f_print(fout, "%s", ext); 361 pprocdef(proc, vers, NULL, 1, 2); 362 } 363 } 364 pfreeprocdef(def->def_name, vers->vers_num, 2); 365 366 } else { 367 for (i = 1; i < 3; i++){ 368 if (i == 1){ 369 f_print(fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n"); 370 ext = "extern "; 371 }else{ 372 f_print(fout, "\n#else /* K&R C */\n"); 373 ext = "extern "; 374 } 375 376 f_print(fout, "%s", ext); 377 pdispatch(def->def_name, vers->vers_num, i); 378 for (proc = vers->procs; proc != NULL; 379 proc = proc->next) { 380 if (!define_printed(proc, 381 def->def.pr.versions)) { 382 puldefine(proc->proc_name, 383 proc->proc_num); 384 } 385 f_print(fout, "%s", ext); 386 pprocdef(proc, vers, "CLIENT *", 0, i); 387 f_print(fout, "%s", ext); 388 pprocdef(proc, vers, "struct svc_req *", 1, i); 389 } 390 pfreeprocdef(def->def_name, vers->vers_num, i); 391 } 392 f_print(fout, "#endif /* K&R C */\n"); 393 } 394 } 395} 396 397static void 398pprocdef(proc, vp, addargtype, server_p, mode) 399 proc_list *proc; 400 version_list *vp; 401 char* addargtype; 402 int server_p; 403 int mode; 404{ 405 if (mtflag) {/* Print MT style stubs */ 406 if (server_p) 407 f_print(fout, "bool_t "); 408 else 409 f_print(fout, "enum clnt_stat "); 410 } else { 411 ptype(proc->res_prefix, proc->res_type, 1); 412 f_print(fout, "* "); 413 } 414 if (server_p) 415 pvname_svc(proc->proc_name, vp->vers_num); 416 else 417 pvname(proc->proc_name, vp->vers_num); 418 419 /* 420 * mode 1 = ANSI-C, mode 2 = K&R C 421 */ 422 if ( mode == 1) 423 parglist(proc, addargtype); 424 else 425 f_print(fout, "();\n"); 426} 427 428 429 430/* print out argument list of procedure */ 431static void 432parglist(proc, addargtype) 433 proc_list *proc; 434 char* addargtype; 435{ 436 decl_list *dl; 437 438 f_print(fout, "("); 439 if (proc->arg_num < 2 && newstyle && 440 streq(proc->args.decls->decl.type, "void")) { 441 /* 0 argument in new style: do nothing*/ 442 } 443 else { 444 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 445 ptype(dl->decl.prefix, dl->decl.type, 1); 446 if (!newstyle) 447 f_print(fout, "*"); 448 /* old style passes by reference */ 449 f_print(fout, ", "); 450 } 451 } 452 453 if (mtflag) { 454 ptype(proc->res_prefix, proc->res_type, 1); 455 f_print(fout, "*, "); 456 } 457 458 f_print(fout, "%s);\n", addargtype); 459 460} 461 462static void 463penumdef(def) 464 definition *def; 465{ 466 char *name = def->def_name; 467 enumval_list *l; 468 char *last = NULL; 469 int count = 0; 470 471 f_print(fout, "enum %s {\n", name); 472 for (l = def->def.en.vals; l != NULL; l = l->next) { 473 f_print(fout, "\t%s", l->name); 474 if (l->assignment) { 475 f_print(fout, " = %s", l->assignment); 476 last = l->assignment; 477 count = 1; 478 } else { 479 if (last == NULL) { 480 f_print(fout, " = %d", count++); 481 } else { 482 f_print(fout, " = %s + %d", last, count++); 483 } 484 } 485 if (l->next) 486 f_print(fout, ",\n"); 487 else 488 f_print(fout, "\n"); 489 } 490 f_print(fout, "};\n"); 491 f_print(fout, "typedef enum %s %s;\n", name, name); 492} 493 494static void 495ptypedef(def) 496 definition *def; 497{ 498 char *name = def->def_name; 499 char *old = def->def.ty.old_type; 500 char prefix[8]; /* enough to contain "struct ", including NUL */ 501 relation rel = def->def.ty.rel; 502 503 504 if (!streq(name, old)) { 505 if (streq(old, "string")) { 506 old = "char"; 507 rel = REL_POINTER; 508 } else if (streq(old, "opaque")) { 509 old = "char"; 510 } else if (streq(old, "bool")) { 511 old = "bool_t"; 512 } 513 if (undefined2(old, name) && def->def.ty.old_prefix) { 514 s_print(prefix, "%s ", def->def.ty.old_prefix); 515 } else { 516 prefix[0] = 0; 517 } 518 f_print(fout, "typedef "); 519 switch (rel) { 520 case REL_ARRAY: 521 f_print(fout, "struct {\n"); 522 f_print(fout, "\tu_int %s_len;\n", name); 523 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 524 f_print(fout, "} %s", name); 525 break; 526 case REL_POINTER: 527 f_print(fout, "%s%s *%s", prefix, old, name); 528 break; 529 case REL_VECTOR: 530 f_print(fout, "%s%s %s[%s]", prefix, old, name, 531 def->def.ty.array_max); 532 break; 533 case REL_ALIAS: 534 f_print(fout, "%s%s %s", prefix, old, name); 535 break; 536 } 537 f_print(fout, ";\n"); 538 } 539} 540 541void 542pdeclaration(name, dec, tab, separator) 543 char *name; 544 declaration *dec; 545 int tab; 546 char *separator; 547{ 548 char buf[8]; /* enough to hold "struct ", include NUL */ 549 char *prefix; 550 char *type; 551 552 if (streq(dec->type, "void")) { 553 return; 554 } 555 tabify(fout, tab); 556 if (streq(dec->type, name) && !dec->prefix) { 557 f_print(fout, "struct "); 558 } 559 if (streq(dec->type, "string")) { 560 f_print(fout, "char *%s", dec->name); 561 } else { 562 prefix = ""; 563 if (streq(dec->type, "bool")) { 564 type = "bool_t"; 565 } else if (streq(dec->type, "opaque")) { 566 type = "char"; 567 } else { 568 if (dec->prefix) { 569 s_print(buf, "%s ", dec->prefix); 570 prefix = buf; 571 } 572 type = dec->type; 573 } 574 switch (dec->rel) { 575 case REL_ALIAS: 576 f_print(fout, "%s%s %s", prefix, type, dec->name); 577 break; 578 case REL_VECTOR: 579 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 580 dec->array_max); 581 break; 582 case REL_POINTER: 583 f_print(fout, "%s%s *%s", prefix, type, dec->name); 584 break; 585 case REL_ARRAY: 586 f_print(fout, "struct {\n"); 587 tabify(fout, tab); 588 f_print(fout, "\tu_int %s_len;\n", dec->name); 589 tabify(fout, tab); 590 f_print(fout, 591 "\t%s%s *%s_val;\n", prefix, type, dec->name); 592 tabify(fout, tab); 593 f_print(fout, "} %s", dec->name); 594 break; 595 } 596 } 597 f_print(fout, separator); 598} 599 600static int 601undefined2(type, stop) 602 char *type; 603 char *stop; 604{ 605 list *l; 606 definition *def; 607 608 for (l = defined; l != NULL; l = l->next) { 609 def = (definition *) l->val; 610 if (def->def_kind != DEF_PROGRAM) { 611 if (streq(def->def_name, stop)) { 612 return (1); 613 } else if (streq(def->def_name, type)) { 614 return (0); 615 } 616 } 617 } 618 return (1); 619} 620