rpc_hout.c revision 149695
1174195Srwatson/* 2174195Srwatson * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3174195Srwatson * unrestricted use provided that this legend is included on all tape 4174195Srwatson * media and as a part of the software program in whole or part. Users 5174195Srwatson * may copy or modify Sun RPC without charge, but are not authorized 6174195Srwatson * to license or distribute it to anyone else except as part of a product or 7174195Srwatson * program developed by the user. 8174195Srwatson * 9174195Srwatson * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10174195Srwatson * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11174195Srwatson * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12174195Srwatson * 13174195Srwatson * Sun RPC is provided with no support and without any obligation on the 14174195Srwatson * part of Sun Microsystems, Inc. to assist in its use, correction, 15174195Srwatson * modification or enhancement. 16174195Srwatson * 17174195Srwatson * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18174195Srwatson * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19174195Srwatson * OR ANY PART THEREOF. 20174195Srwatson * 21174195Srwatson * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22174195Srwatson * or profits or other special, indirect and consequential damages, even if 23174195Srwatson * Sun has been advised of the possibility of such damages. 24174195Srwatson * 25174195Srwatson * Sun Microsystems, Inc. 26174195Srwatson * 2550 Garcia Avenue 27174195Srwatson * Mountain View, California 94043 28174195Srwatson */ 29174195Srwatson 30174195Srwatson#if 0 31174195Srwatson#ifndef lint 32174195Srwatson#ident "@(#)rpc_hout.c 1.16 94/04/25 SMI" 33174195Srwatsonstatic char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI"; 34174195Srwatson#endif 35174195Srwatson#endif 36174195Srwatson 37174195Srwatson#include <sys/cdefs.h> 38174195Srwatson__FBSDID("$FreeBSD: head/usr.bin/rpcgen/rpc_hout.c 149695 2005-09-01 19:16:25Z stefanf $"); 39174195Srwatson 40174195Srwatson/* 41174195Srwatson * rpc_hout.c, Header file outputter for the RPC protocol compiler 42174195Srwatson * Copyright (C) 1987, Sun Microsystems, Inc. 43286396Skib */ 44174195Srwatson#include <stdio.h> 45174195Srwatson#include <ctype.h> 46174195Srwatson#include "rpc_parse.h" 47174195Srwatson#include "rpc_scan.h" 48174195Srwatson#include "rpc_util.h" 49174195Srwatson 50174195Srwatsonvoid storexdrfuncdecl( char *, int ); 51174195Srwatsonstatic void pconstdef( definition * ); 52174195Srwatsonstatic void pstructdef( definition * ); 53174195Srwatsonstatic void puniondef( definition * ); 54174195Srwatsonstatic void pprogramdef( definition *, int ); 55174195Srwatsonstatic void pstructdef( definition * ); 56174195Srwatsonstatic void penumdef( definition * ); 57174195Srwatsonstatic void ptypedef( definition * ); 58174195Srwatsonstatic void pdefine( char *, char * ); 59286396Skibstatic int undefined2( char *, char * ); 60286396Skibstatic void parglist( proc_list *, char * ); 61174195Srwatsonstatic void pprocdef( proc_list *, version_list *, char *, int, int ); 62174195Srwatsonvoid pdeclaration( char *, declaration *, int, char * ); 63174195Srwatson 64174195Srwatson/* 65174195Srwatson * Print the C-version of an xdr definition 66174195Srwatson */ 67174195Srwatsonvoid 68174195Srwatsonprint_datadef(definition *def, int headeronly) 69174195Srwatson{ 70174195Srwatson 71174195Srwatson if (def->def_kind == DEF_PROGRAM) /* handle data only */ 72174195Srwatson return; 73174195Srwatson 74174195Srwatson if (def->def_kind != DEF_CONST) { 75174195Srwatson f_print(fout, "\n"); 76174195Srwatson } 77286396Skib switch (def->def_kind) { 78174195Srwatson case DEF_STRUCT: 79174195Srwatson pstructdef(def); 80174195Srwatson break; 81174195Srwatson case DEF_UNION: 82174195Srwatson puniondef(def); 83174195Srwatson break; 84174195Srwatson case DEF_ENUM: 85174195Srwatson penumdef(def); 86286396Skib break; 87174195Srwatson case DEF_TYPEDEF: 88 ptypedef(def); 89 break; 90 case DEF_PROGRAM: 91 pprogramdef(def, headeronly); 92 break; 93 case DEF_CONST: 94 pconstdef(def); 95 break; 96 } 97 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 98 storexdrfuncdecl(def->def_name, 99 def->def_kind != DEF_TYPEDEF || 100 !isvectordef(def->def.ty.old_type, 101 def->def.ty.rel)); 102 } 103} 104 105 106void 107print_funcdef(definition *def, int headeronly) 108{ 109 switch (def->def_kind) { 110 case DEF_PROGRAM: 111 f_print(fout, "\n"); 112 pprogramdef(def, headeronly); 113 break; 114 default: 115 break; 116 } 117} 118 119/* store away enough information to allow the XDR functions to be spat 120 out at the end of the file */ 121 122void 123storexdrfuncdecl(name, pointerp) 124char *name; 125int pointerp; 126{ 127 xdrfunc * xdrptr; 128 129 xdrptr = XALLOC(struct xdrfunc); 130 131 xdrptr->name = name; 132 xdrptr->pointerp = pointerp; 133 xdrptr->next = NULL; 134 135 if (xdrfunc_tail == NULL){ 136 xdrfunc_head = xdrptr; 137 xdrfunc_tail = xdrptr; 138 } else { 139 xdrfunc_tail->next = xdrptr; 140 xdrfunc_tail = xdrptr; 141 } 142 143 144} 145 146void 147print_xdr_func_def(name, pointerp, i) 148char* name; 149int pointerp; 150int i; 151{ 152 if (i == 2) { 153 f_print(fout, "extern bool_t xdr_%s();\n", name); 154 return; 155 } 156 else 157 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 158 name, pointerp ? "*" : ""); 159 160 161} 162 163 164static void 165pconstdef(def) 166 definition *def; 167{ 168 pdefine(def->def_name, def->def.co); 169} 170 171/* print out the definitions for the arguments of functions in the 172 header file 173*/ 174static void 175pargdef(def) 176 definition *def; 177{ 178 decl_list *l; 179 version_list *vers; 180 char *name; 181 proc_list *plist; 182 183 184 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 185 for (plist = vers->procs; plist != NULL; 186 plist = plist->next) { 187 188 if (!newstyle || plist->arg_num < 2) { 189 continue; /* old style or single args */ 190 } 191 name = plist->args.argname; 192 f_print(fout, "struct %s {\n", name); 193 for (l = plist->args.decls; 194 l != NULL; l = l->next) { 195 pdeclaration(name, &l->decl, 1, 196 ";\n"); 197 } 198 f_print(fout, "};\n"); 199 f_print(fout, "typedef struct %s %s;\n", 200 name, name); 201 storexdrfuncdecl(name, 1); 202 f_print(fout, "\n"); 203 } 204 } 205} 206 207 208static void 209pstructdef(def) 210 definition *def; 211{ 212 decl_list *l; 213 char *name = def->def_name; 214 215 f_print(fout, "struct %s {\n", name); 216 for (l = def->def.st.decls; l != NULL; l = l->next) { 217 pdeclaration(name, &l->decl, 1, ";\n"); 218 } 219 f_print(fout, "};\n"); 220 f_print(fout, "typedef struct %s %s;\n", name, name); 221} 222 223static void 224puniondef(def) 225 definition *def; 226{ 227 case_list *l; 228 char *name = def->def_name; 229 declaration *decl; 230 231 f_print(fout, "struct %s {\n", name); 232 decl = &def->def.un.enum_decl; 233 if (streq(decl->type, "bool")) { 234 f_print(fout, "\tbool_t %s;\n", decl->name); 235 } else { 236 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 237 } 238 f_print(fout, "\tunion {\n"); 239 for (l = def->def.un.cases; l != NULL; l = l->next) { 240 if (l->contflag == 0) 241 pdeclaration(name, &l->case_decl, 2, ";\n"); 242 } 243 decl = def->def.un.default_decl; 244 if (decl && !streq(decl->type, "void")) { 245 pdeclaration(name, decl, 2, ";\n"); 246 } 247 f_print(fout, "\t} %s_u;\n", name); 248 f_print(fout, "};\n"); 249 f_print(fout, "typedef struct %s %s;\n", name, name); 250} 251 252static void 253pdefine(name, num) 254 char *name; 255 char *num; 256{ 257 f_print(fout, "#define\t%s %s\n", name, num); 258} 259 260static void 261puldefine(name, num) 262 char *name; 263 char *num; 264{ 265 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 266} 267 268static int 269define_printed(stop, start) 270 proc_list *stop; 271 version_list *start; 272{ 273 version_list *vers; 274 proc_list *proc; 275 276 for (vers = start; vers != NULL; vers = vers->next) { 277 for (proc = vers->procs; proc != NULL; proc = proc->next) { 278 if (proc == stop) { 279 return (0); 280 } else if (streq(proc->proc_name, stop->proc_name)) { 281 return (1); 282 } 283 } 284 } 285 abort(); 286 /* NOTREACHED */ 287} 288 289static void 290pfreeprocdef(char * name, char *vers, int mode) 291{ 292 f_print(fout, "extern int "); 293 pvname(name, vers); 294 if (mode == 1) 295 f_print(fout,"_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 296 else 297 f_print(fout,"_freeresult();\n"); 298 299 300} 301 302static void 303pdispatch(char * name, char *vers, int mode) 304{ 305 306 f_print(fout, "void "); 307 pvname(name, vers); 308 if (mode == 1) 309 f_print(fout, 310 "(struct svc_req *rqstp, register SVCXPRT *transp);\n"); 311 else 312 f_print(fout,"();\n"); 313 314} 315 316static void 317pprogramdef(definition *def, int headeronly) 318{ 319 version_list *vers; 320 proc_list *proc; 321 int i; 322 char *ext; 323 324 pargdef(def); 325 326 puldefine(def->def_name, def->def.pr.prog_num); 327 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 328 if (tblflag) { 329 f_print(fout, 330 "extern struct rpcgen_table %s_%s_table[];\n", 331 locase(def->def_name), vers->vers_num); 332 f_print(fout, 333 "extern %s_%s_nproc;\n", 334 locase(def->def_name), vers->vers_num); 335 } 336 puldefine(vers->vers_name, vers->vers_num); 337 338 /* 339 * Print out 2 definitions, one for ANSI-C, another for 340 * old K & R C 341 */ 342 343 if(!Cflag){ 344 ext = "extern "; 345 if (headeronly) { 346 f_print(fout, "%s", ext); 347 pdispatch(def->def_name, vers->vers_num, 2); 348 } 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 if (headeronly) { 377 f_print(fout, "%s", ext); 378 pdispatch(def->def_name, vers->vers_num, 379 i); 380 } 381 for (proc = vers->procs; proc != NULL; 382 proc = proc->next) { 383 if (!define_printed(proc, 384 def->def.pr.versions)) { 385 puldefine(proc->proc_name, 386 proc->proc_num); 387 } 388 f_print(fout, "%s", ext); 389 pprocdef(proc, vers, "CLIENT *", 0, i); 390 f_print(fout, "%s", ext); 391 pprocdef(proc, vers, "struct svc_req *", 1, i); 392 } 393 pfreeprocdef(def->def_name, vers->vers_num, i); 394 } 395 f_print(fout, "#endif /* K&R C */\n"); 396 } 397 } 398} 399 400static void 401pprocdef(proc, vp, addargtype, server_p, mode) 402 proc_list *proc; 403 version_list *vp; 404 char* addargtype; 405 int server_p; 406 int mode; 407{ 408 if (mtflag) {/* Print MT style stubs */ 409 if (server_p) 410 f_print(fout, "bool_t "); 411 else 412 f_print(fout, "enum clnt_stat "); 413 } else { 414 ptype(proc->res_prefix, proc->res_type, 1); 415 f_print(fout, "* "); 416 } 417 if (server_p) 418 pvname_svc(proc->proc_name, vp->vers_num); 419 else 420 pvname(proc->proc_name, vp->vers_num); 421 422 /* 423 * mode 1 = ANSI-C, mode 2 = K&R C 424 */ 425 if ( mode == 1) 426 parglist(proc, addargtype); 427 else 428 f_print(fout, "();\n"); 429} 430 431 432 433/* print out argument list of procedure */ 434static void 435parglist(proc, addargtype) 436 proc_list *proc; 437 char* addargtype; 438{ 439 decl_list *dl; 440 441 f_print(fout, "("); 442 if (proc->arg_num < 2 && newstyle && 443 streq(proc->args.decls->decl.type, "void")) { 444 /* 0 argument in new style: do nothing*/ 445 } 446 else { 447 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 448 ptype(dl->decl.prefix, dl->decl.type, 1); 449 if (!newstyle) 450 f_print(fout, "*"); 451 /* old style passes by reference */ 452 f_print(fout, ", "); 453 } 454 } 455 456 if (mtflag) { 457 ptype(proc->res_prefix, proc->res_type, 1); 458 f_print(fout, "*, "); 459 } 460 461 f_print(fout, "%s);\n", addargtype); 462 463} 464 465static void 466penumdef(def) 467 definition *def; 468{ 469 char *name = def->def_name; 470 enumval_list *l; 471 char *last = NULL; 472 int count = 0; 473 474 f_print(fout, "enum %s {\n", name); 475 for (l = def->def.en.vals; l != NULL; l = l->next) { 476 f_print(fout, "\t%s", l->name); 477 if (l->assignment) { 478 f_print(fout, " = %s", l->assignment); 479 last = l->assignment; 480 count = 1; 481 } else { 482 if (last == NULL) { 483 f_print(fout, " = %d", count++); 484 } else { 485 f_print(fout, " = %s + %d", last, count++); 486 } 487 } 488 if (l->next) 489 f_print(fout, ",\n"); 490 else 491 f_print(fout, "\n"); 492 } 493 f_print(fout, "};\n"); 494 f_print(fout, "typedef enum %s %s;\n", name, name); 495} 496 497static void 498ptypedef(def) 499 definition *def; 500{ 501 char *name = def->def_name; 502 char *old = def->def.ty.old_type; 503 char prefix[8]; /* enough to contain "struct ", including NUL */ 504 relation rel = def->def.ty.rel; 505 506 507 if (!streq(name, old)) { 508 if (streq(old, "string")) { 509 old = "char"; 510 rel = REL_POINTER; 511 } else if (streq(old, "opaque")) { 512 old = "char"; 513 } else if (streq(old, "bool")) { 514 old = "bool_t"; 515 } 516 if (undefined2(old, name) && def->def.ty.old_prefix) { 517 s_print(prefix, "%s ", def->def.ty.old_prefix); 518 } else { 519 prefix[0] = 0; 520 } 521 f_print(fout, "typedef "); 522 switch (rel) { 523 case REL_ARRAY: 524 f_print(fout, "struct {\n"); 525 f_print(fout, "\tu_int %s_len;\n", name); 526 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 527 f_print(fout, "} %s", name); 528 break; 529 case REL_POINTER: 530 f_print(fout, "%s%s *%s", prefix, old, name); 531 break; 532 case REL_VECTOR: 533 f_print(fout, "%s%s %s[%s]", prefix, old, name, 534 def->def.ty.array_max); 535 break; 536 case REL_ALIAS: 537 f_print(fout, "%s%s %s", prefix, old, name); 538 break; 539 } 540 f_print(fout, ";\n"); 541 } 542} 543 544void 545pdeclaration(name, dec, tab, separator) 546 char *name; 547 declaration *dec; 548 int tab; 549 char *separator; 550{ 551 char buf[8]; /* enough to hold "struct ", include NUL */ 552 char *prefix; 553 char *type; 554 555 if (streq(dec->type, "void")) { 556 return; 557 } 558 tabify(fout, tab); 559 if (streq(dec->type, name) && !dec->prefix) { 560 f_print(fout, "struct "); 561 } 562 if (streq(dec->type, "string")) { 563 f_print(fout, "char *%s", dec->name); 564 } else { 565 prefix = ""; 566 if (streq(dec->type, "bool")) { 567 type = "bool_t"; 568 } else if (streq(dec->type, "opaque")) { 569 type = "char"; 570 } else { 571 if (dec->prefix) { 572 s_print(buf, "%s ", dec->prefix); 573 prefix = buf; 574 } 575 type = dec->type; 576 } 577 switch (dec->rel) { 578 case REL_ALIAS: 579 f_print(fout, "%s%s %s", prefix, type, dec->name); 580 break; 581 case REL_VECTOR: 582 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 583 dec->array_max); 584 break; 585 case REL_POINTER: 586 f_print(fout, "%s%s *%s", prefix, type, dec->name); 587 break; 588 case REL_ARRAY: 589 f_print(fout, "struct {\n"); 590 tabify(fout, tab); 591 f_print(fout, "\tu_int %s_len;\n", dec->name); 592 tabify(fout, tab); 593 f_print(fout, 594 "\t%s%s *%s_val;\n", prefix, type, dec->name); 595 tabify(fout, tab); 596 f_print(fout, "} %s", dec->name); 597 break; 598 } 599 } 600 f_print(fout, separator); 601} 602 603static int 604undefined2(type, stop) 605 char *type; 606 char *stop; 607{ 608 list *l; 609 definition *def; 610 611 for (l = defined; l != NULL; l = l->next) { 612 def = (definition *) l->val; 613 if (def->def_kind != DEF_PROGRAM) { 614 if (streq(def->def_name, stop)) { 615 return (1); 616 } else if (streq(def->def_name, type)) { 617 return (0); 618 } 619 } 620 } 621 return (1); 622} 623