1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 /* 30 * University Copyright- Copyright (c) 1982, 1986, 1988 31 * The Regents of the University of California 32 * All Rights Reserved 33 * 34 * University Acknowledgment- Portions of this document are derived from 35 * software developed by the University of California, Berkeley, and its 36 * contributors. 37 */ 38 39 #pragma ident "%Z%%M% %I% %E% SMI" 40 41 /* 42 * rpc_hout.c, Header file outputter for the RPC protocol compiler 43 */ 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <ctype.h> 47 #include "rpc_parse.h" 48 #include "rpc_util.h" 49 50 extern void pprocdef(proc_list *, version_list *, char *, int, int); 51 extern void pdeclaration(char *, declaration *, int, char *); 52 53 static void storexdrfuncdecl(char *, int); 54 static void pconstdef(definition *); 55 static void pstructdef(definition *); 56 static void puniondef(definition *); 57 static void pdefine(char *, char *); 58 static void pprogramdef(definition *); 59 static void parglist(proc_list *, char *); 60 static void penumdef(definition *); 61 static void ptypedef(definition *); 62 static uint_t undefined2(char *, char *); 63 64 enum rpc_gvc { 65 PROGRAM, 66 VERSION, 67 PROCEDURE 68 }; 69 70 /* 71 * Print the C-version of an xdr definition 72 */ 73 void 74 print_datadef(definition *def) 75 { 76 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 77 return; 78 79 if (def->def_kind != DEF_CONST) 80 f_print(fout, "\n"); 81 switch (def->def_kind) { 82 case DEF_STRUCT: 83 pstructdef(def); 84 break; 85 case DEF_UNION: 86 puniondef(def); 87 break; 88 case DEF_ENUM: 89 penumdef(def); 90 break; 91 case DEF_TYPEDEF: 92 ptypedef(def); 93 break; 94 case DEF_PROGRAM: 95 pprogramdef(def); 96 break; 97 case DEF_CONST: 98 pconstdef(def); 99 break; 100 } 101 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) 102 storexdrfuncdecl(def->def_name, def->def_kind != DEF_TYPEDEF || 103 !isvectordef(def->def.ty.old_type, def->def.ty.rel)); 104 } 105 106 107 void 108 print_funcdef(definition *def) 109 { 110 switch (def->def_kind) { 111 case DEF_PROGRAM: 112 f_print(fout, "\n"); 113 pprogramdef(def); 114 break; 115 } 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 */ 122 static void 123 storexdrfuncdecl(char *name, int pointerp) 124 { 125 xdrfunc *xdrptr; 126 127 xdrptr = 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(char *name, int pointerp, int i) 146 { 147 if (i == 2) 148 f_print(fout, "extern bool_t xdr_%s();\n", name); 149 else 150 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 151 name, pointerp ? "*" : ""); 152 } 153 154 155 static void 156 pconstdef(definition *def) 157 { 158 pdefine(def->def_name, def->def.co); 159 } 160 161 /* 162 * print out the definitions for the arguments of functions in the 163 * header file 164 */ 165 static void 166 pargdef(definition *def) 167 { 168 decl_list *l; 169 version_list *vers; 170 char *name; 171 proc_list *plist; 172 173 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 174 for (plist = vers->procs; plist != NULL; plist = plist->next) { 175 if (!newstyle || plist->arg_num < 2) 176 continue; /* old style or single args */ 177 name = plist->args.argname; 178 f_print(fout, "struct %s {\n", name); 179 for (l = plist->args.decls; l != NULL; l = l->next) 180 pdeclaration(name, &l->decl, 1, ";\n"); 181 f_print(fout, "};\n"); 182 f_print(fout, "typedef struct %s %s;\n", name, name); 183 storexdrfuncdecl(name, 1); 184 f_print(fout, "\n"); 185 } 186 } 187 } 188 189 190 static void 191 pstructdef(definition *def) 192 { 193 decl_list *l; 194 char *name = def->def_name; 195 196 f_print(fout, "struct %s {\n", name); 197 for (l = def->def.st.decls; l != NULL; l = l->next) 198 pdeclaration(name, &l->decl, 1, ";\n"); 199 f_print(fout, "};\n"); 200 f_print(fout, "typedef struct %s %s;\n", name, name); 201 } 202 203 static void 204 puniondef(definition *def) 205 { 206 case_list *l; 207 char *name = def->def_name; 208 declaration *decl; 209 210 f_print(fout, "struct %s {\n", name); 211 decl = &def->def.un.enum_decl; 212 if (streq(decl->type, "bool")) 213 f_print(fout, "\tbool_t %s;\n", decl->name); 214 else 215 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 216 f_print(fout, "\tunion {\n"); 217 for (l = def->def.un.cases; l != NULL; l = l->next) { 218 if (l->contflag == 0) 219 pdeclaration(name, &l->case_decl, 2, ";\n"); 220 } 221 decl = def->def.un.default_decl; 222 if (decl && !streq(decl->type, "void")) 223 pdeclaration(name, decl, 2, ";\n"); 224 f_print(fout, "\t} %s_u;\n", name); 225 f_print(fout, "};\n"); 226 f_print(fout, "typedef struct %s %s;\n", name, name); 227 } 228 229 static void 230 pdefine(char *name, char *num) 231 { 232 f_print(fout, "#define\t%s %s\n", name, num); 233 } 234 235 static void 236 puldefine(char *name, char *num, enum rpc_gvc which) 237 { 238 switch (which) { 239 case PROGRAM: 240 case VERSION: 241 case PROCEDURE: 242 f_print(fout, "#define\t%s\t%s\n", name, num); 243 break; 244 default: 245 break; 246 } 247 } 248 249 static uint_t 250 define_printed(proc_list *stop, version_list *start) 251 { 252 version_list *vers; 253 proc_list *proc; 254 255 for (vers = start; vers != NULL; vers = vers->next) { 256 for (proc = vers->procs; proc != NULL; proc = proc->next) { 257 if (proc == stop) 258 return (0); 259 if (streq(proc->proc_name, stop->proc_name)) 260 return (1); 261 } 262 } 263 abort(); 264 /* NOTREACHED */ 265 } 266 267 static void 268 pfreeprocdef(char *name, char *vers, int mode) 269 { 270 f_print(fout, "extern int "); 271 pvname(name, vers); 272 if (mode == 1) 273 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 274 else 275 f_print(fout, "_freeresult();\n"); 276 } 277 278 static void 279 pprogramdef(definition *def) 280 { 281 version_list *vers; 282 proc_list *proc; 283 int i; 284 char *ext; 285 286 pargdef(def); 287 288 puldefine(def->def_name, def->def.pr.prog_num, PROGRAM); 289 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 290 if (tblflag) { 291 f_print(fout, 292 "extern struct rpcgen_table %s_%s_table[];\n", 293 locase(def->def_name), vers->vers_num); 294 f_print(fout, 295 "extern int %s_%s_nproc;\n", 296 locase(def->def_name), vers->vers_num); 297 } 298 puldefine(vers->vers_name, vers->vers_num, VERSION); 299 300 /* 301 * Print out 2 definitions, one for ANSI-C, another for 302 * old K & R C 303 */ 304 305 if (!Cflag) { 306 ext = "extern "; 307 for (proc = vers->procs; proc != NULL; 308 proc = proc->next) { 309 if (!define_printed(proc, def->def.pr.versions)) 310 puldefine(proc->proc_name, 311 proc->proc_num, PROCEDURE); 312 f_print(fout, "%s", ext); 313 pprocdef(proc, vers, NULL, 0, 2); 314 315 if (mtflag) { 316 f_print(fout, "%s", ext); 317 pprocdef(proc, vers, NULL, 1, 2); 318 } 319 } 320 pfreeprocdef(def->def_name, vers->vers_num, 2); 321 } else { 322 for (i = 1; i < 3; i++) { 323 if (i == 1) { 324 f_print(fout, "\n#if defined(__STDC__)" 325 " || defined(__cplusplus)\n"); 326 ext = "extern "; 327 } else { 328 f_print(fout, "\n#else /* K&R C */\n"); 329 ext = "extern "; 330 } 331 332 for (proc = vers->procs; proc != NULL; 333 proc = proc->next) { 334 if (!define_printed(proc, 335 def->def.pr.versions)) { 336 puldefine(proc->proc_name, 337 proc->proc_num, PROCEDURE); 338 } 339 f_print(fout, "%s", ext); 340 pprocdef(proc, vers, "CLIENT *", 0, i); 341 f_print(fout, "%s", ext); 342 pprocdef(proc, vers, 343 "struct svc_req *", 1, i); 344 } 345 pfreeprocdef(def->def_name, vers->vers_num, i); 346 } 347 f_print(fout, "#endif /* K&R C */\n"); 348 } 349 } 350 } 351 352 void 353 pprocdef(proc_list *proc, version_list *vp, char *addargtype, int server_p, 354 int mode) 355 { 356 if (mtflag) { 357 /* Print MT style stubs */ 358 if (server_p) 359 f_print(fout, "bool_t "); 360 else 361 f_print(fout, "enum clnt_stat "); 362 } else { 363 ptype(proc->res_prefix, proc->res_type, 1); 364 f_print(fout, "* "); 365 } 366 if (server_p) 367 pvname_svc(proc->proc_name, vp->vers_num); 368 else 369 pvname(proc->proc_name, vp->vers_num); 370 371 /* 372 * mode 1 = ANSI-C, mode 2 = K&R C 373 */ 374 if (mode == 1) 375 parglist(proc, addargtype); 376 else 377 f_print(fout, "();\n"); 378 } 379 380 /* print out argument list of procedure */ 381 static void 382 parglist(proc_list *proc, char *addargtype) 383 { 384 decl_list *dl; 385 int oneway = streq(proc->res_type, "oneway"); 386 387 f_print(fout, "("); 388 if (proc->arg_num < 2 && newstyle && 389 streq(proc->args.decls->decl.type, "void")) { 390 /* 0 argument in new style: do nothing */ 391 /* EMPTY */ 392 } else { 393 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 394 ptype(dl->decl.prefix, dl->decl.type, 1); 395 if (!newstyle || (dl->decl.rel == REL_POINTER)) 396 f_print(fout, "*"); 397 /* old style passes by reference */ 398 f_print(fout, ", "); 399 } 400 } 401 402 if (mtflag && !oneway) { 403 ptype(proc->res_prefix, proc->res_type, 1); 404 f_print(fout, "*, "); 405 } 406 407 f_print(fout, "%s);\n", addargtype); 408 } 409 410 static void 411 penumdef(definition *def) 412 { 413 char *name = def->def_name; 414 enumval_list *l; 415 char *last = NULL; 416 int count = 0; 417 418 f_print(fout, "enum %s {\n", name); 419 for (l = def->def.en.vals; l != NULL; l = l->next) { 420 f_print(fout, "\t%s", l->name); 421 if (l->assignment) { 422 f_print(fout, " = %s", l->assignment); 423 last = l->assignment; 424 count = 1; 425 } else { 426 if (last == NULL) 427 f_print(fout, " = %d", count++); 428 else 429 f_print(fout, " = %s + %d", last, count++); 430 } 431 if (l->next) 432 f_print(fout, ",\n"); 433 else 434 f_print(fout, "\n"); 435 } 436 f_print(fout, "};\n"); 437 f_print(fout, "typedef enum %s %s;\n", name, name); 438 } 439 440 static void 441 ptypedef(definition *def) 442 { 443 char *name = def->def_name; 444 char *old = def->def.ty.old_type; 445 char prefix[8]; /* enough to contain "struct ", including NUL */ 446 relation rel = def->def.ty.rel; 447 448 449 if (!streq(name, old)) { 450 if (streq(old, "string")) { 451 old = "char"; 452 rel = REL_POINTER; 453 } else if (streq(old, "opaque")) { 454 old = "char"; 455 } else if (streq(old, "bool")) { 456 old = "bool_t"; 457 } 458 if (undefined2(old, name) && def->def.ty.old_prefix) 459 (void) snprintf(prefix, sizeof (prefix), "%s ", 460 def->def.ty.old_prefix); 461 else 462 prefix[0] = 0; 463 f_print(fout, "typedef "); 464 switch (rel) { 465 case REL_ARRAY: 466 f_print(fout, "struct {\n"); 467 f_print(fout, "\tu_int %s_len;\n", name); 468 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 469 f_print(fout, "} %s", name); 470 break; 471 case REL_POINTER: 472 f_print(fout, "%s%s *%s", prefix, old, name); 473 break; 474 case REL_VECTOR: 475 f_print(fout, "%s%s %s[%s]", prefix, old, name, 476 def->def.ty.array_max); 477 break; 478 case REL_ALIAS: 479 f_print(fout, "%s%s %s", prefix, old, name); 480 break; 481 } 482 f_print(fout, ";\n"); 483 } 484 } 485 486 void 487 pdeclaration(char *name, declaration *dec, int tab, char *separator) 488 { 489 char buf[8]; /* enough to hold "struct ", include NUL */ 490 char *prefix; 491 char *type; 492 493 if (streq(dec->type, "void")) 494 return; 495 tabify(fout, tab); 496 if (streq(dec->type, name) && !dec->prefix) 497 f_print(fout, "struct "); 498 if (streq(dec->type, "string")) { 499 f_print(fout, "char *%s", dec->name); 500 } else { 501 prefix = ""; 502 if (streq(dec->type, "bool")) { 503 type = "bool_t"; 504 } else if (streq(dec->type, "opaque")) { 505 type = "char"; 506 } else { 507 if (dec->prefix) { 508 (void) snprintf(buf, sizeof (buf), 509 "%s ", dec->prefix); 510 prefix = buf; 511 } 512 type = dec->type; 513 } 514 switch (dec->rel) { 515 case REL_ALIAS: 516 f_print(fout, "%s%s %s", prefix, type, dec->name); 517 break; 518 case REL_VECTOR: 519 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 520 dec->array_max); 521 break; 522 case REL_POINTER: 523 f_print(fout, "%s%s *%s", prefix, type, dec->name); 524 break; 525 case REL_ARRAY: 526 f_print(fout, "struct {\n"); 527 tabify(fout, tab); 528 f_print(fout, "\tu_int %s_len;\n", dec->name); 529 tabify(fout, tab); 530 f_print(fout, 531 "\t%s%s *%s_val;\n", prefix, type, dec->name); 532 tabify(fout, tab); 533 f_print(fout, "} %s", dec->name); 534 break; 535 } 536 } 537 /* LINTED variable format */ 538 f_print(fout, separator); 539 } 540 541 static uint_t 542 undefined2(char *type, char *stop) 543 { 544 list *l; 545 definition *def; 546 547 for (l = defined; l != NULL; l = l->next) { 548 def = (definition *) l->val; 549 if (def->def_kind != DEF_PROGRAM) { 550 if (streq(def->def_name, stop)) 551 return (1); 552 if (streq(def->def_name, type)) 553 return (0); 554 } 555 } 556 return (1); 557 } 558