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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 /* 29 * University Copyright- Copyright (c) 1982, 1986, 1988 30 * The Regents of the University of California 31 * All Rights Reserved 32 * 33 * University Acknowledgment- Portions of this document are derived from 34 * software developed by the University of California, Berkeley, and its 35 * contributors. 36 */ 37 38 /* 39 * rpc_hout.c, Header file outputter for the RPC protocol compiler 40 */ 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <ctype.h> 44 #include "rpc_parse.h" 45 #include "rpc_util.h" 46 47 extern void pprocdef(proc_list *, version_list *, char *, int, int); 48 extern void pdeclaration(char *, declaration *, int, char *); 49 50 static void storexdrfuncdecl(char *, int); 51 static void pconstdef(definition *); 52 static void pstructdef(definition *); 53 static void puniondef(definition *); 54 static void pdefine(char *, char *); 55 static void pprogramdef(definition *); 56 static void parglist(proc_list *, char *); 57 static void penumdef(definition *); 58 static void ptypedef(definition *); 59 static uint_t undefined2(char *, char *); 60 61 enum rpc_gvc { 62 PROGRAM, 63 VERSION, 64 PROCEDURE 65 }; 66 67 /* 68 * Print the C-version of an xdr definition 69 */ 70 void 71 print_datadef(definition *def) 72 { 73 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 74 return; 75 76 if (def->def_kind != DEF_CONST) 77 f_print(fout, "\n"); 78 switch (def->def_kind) { 79 case DEF_STRUCT: 80 pstructdef(def); 81 break; 82 case DEF_UNION: 83 puniondef(def); 84 break; 85 case DEF_ENUM: 86 penumdef(def); 87 break; 88 case DEF_TYPEDEF: 89 ptypedef(def); 90 break; 91 case DEF_PROGRAM: 92 pprogramdef(def); 93 break; 94 case DEF_CONST: 95 pconstdef(def); 96 break; 97 } 98 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) 99 storexdrfuncdecl(def->def_name, def->def_kind != DEF_TYPEDEF || 100 !isvectordef(def->def.ty.old_type, def->def.ty.rel)); 101 } 102 103 104 void 105 print_funcdef(definition *def) 106 { 107 switch (def->def_kind) { 108 case DEF_PROGRAM: 109 f_print(fout, "\n"); 110 pprogramdef(def); 111 break; 112 } 113 } 114 115 /* 116 * store away enough information to allow the XDR functions to be spat 117 * out at the end of the file 118 */ 119 static void 120 storexdrfuncdecl(char *name, int pointerp) 121 { 122 xdrfunc *xdrptr; 123 124 xdrptr = malloc(sizeof (struct xdrfunc)); 125 126 xdrptr->name = name; 127 xdrptr->pointerp = pointerp; 128 xdrptr->next = NULL; 129 130 if (xdrfunc_tail == NULL) { 131 xdrfunc_head = xdrptr; 132 xdrfunc_tail = xdrptr; 133 } else { 134 xdrfunc_tail->next = xdrptr; 135 xdrfunc_tail = xdrptr; 136 } 137 138 139 } 140 141 void 142 print_xdr_func_def(char *name, int pointerp, int i) 143 { 144 if (i == 2) 145 f_print(fout, "extern bool_t xdr_%s();\n", name); 146 else 147 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 148 name, pointerp ? "*" : ""); 149 } 150 151 152 static void 153 pconstdef(definition *def) 154 { 155 pdefine(def->def_name, def->def.co); 156 } 157 158 /* 159 * print out the definitions for the arguments of functions in the 160 * header file 161 */ 162 static void 163 pargdef(definition *def) 164 { 165 decl_list *l; 166 version_list *vers; 167 char *name; 168 proc_list *plist; 169 170 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 171 for (plist = vers->procs; plist != NULL; plist = plist->next) { 172 if (!newstyle || plist->arg_num < 2) 173 continue; /* old style or single args */ 174 name = plist->args.argname; 175 f_print(fout, "struct %s {\n", name); 176 for (l = plist->args.decls; l != NULL; l = l->next) 177 pdeclaration(name, &l->decl, 1, ";\n"); 178 f_print(fout, "};\n"); 179 f_print(fout, "typedef struct %s %s;\n", name, name); 180 storexdrfuncdecl(name, 1); 181 f_print(fout, "\n"); 182 } 183 } 184 } 185 186 187 static void 188 pstructdef(definition *def) 189 { 190 decl_list *l; 191 char *name = def->def_name; 192 193 f_print(fout, "struct %s {\n", name); 194 for (l = def->def.st.decls; l != NULL; l = l->next) 195 pdeclaration(name, &l->decl, 1, ";\n"); 196 f_print(fout, "};\n"); 197 f_print(fout, "typedef struct %s %s;\n", name, name); 198 } 199 200 static void 201 puniondef(definition *def) 202 { 203 case_list *l; 204 char *name = def->def_name; 205 declaration *decl; 206 207 f_print(fout, "struct %s {\n", name); 208 decl = &def->def.un.enum_decl; 209 if (streq(decl->type, "bool")) 210 f_print(fout, "\tbool_t %s;\n", decl->name); 211 else 212 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 213 f_print(fout, "\tunion {\n"); 214 for (l = def->def.un.cases; l != NULL; l = l->next) { 215 if (l->contflag == 0) 216 pdeclaration(name, &l->case_decl, 2, ";\n"); 217 } 218 decl = def->def.un.default_decl; 219 if (decl && !streq(decl->type, "void")) 220 pdeclaration(name, decl, 2, ";\n"); 221 f_print(fout, "\t} %s_u;\n", name); 222 f_print(fout, "};\n"); 223 f_print(fout, "typedef struct %s %s;\n", name, name); 224 } 225 226 static void 227 pdefine(char *name, char *num) 228 { 229 f_print(fout, "#define\t%s %s\n", name, num); 230 } 231 232 static void 233 puldefine(char *name, char *num, enum rpc_gvc which) 234 { 235 switch (which) { 236 case PROGRAM: 237 case VERSION: 238 case PROCEDURE: 239 f_print(fout, "#define\t%s\t%s\n", name, num); 240 break; 241 default: 242 break; 243 } 244 } 245 246 static uint_t 247 define_printed(proc_list *stop, version_list *start) 248 { 249 version_list *vers; 250 proc_list *proc; 251 252 for (vers = start; vers != NULL; vers = vers->next) { 253 for (proc = vers->procs; proc != NULL; proc = proc->next) { 254 if (proc == stop) 255 return (0); 256 if (streq(proc->proc_name, stop->proc_name)) 257 return (1); 258 } 259 } 260 abort(); 261 /* NOTREACHED */ 262 } 263 264 static void 265 pfreeprocdef(char *name, char *vers, int mode) 266 { 267 f_print(fout, "extern int "); 268 pvname(name, vers); 269 if (mode == 1) 270 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 271 else 272 f_print(fout, "_freeresult();\n"); 273 } 274 275 static void 276 pprogramdef(definition *def) 277 { 278 version_list *vers; 279 proc_list *proc; 280 int i; 281 char *ext; 282 283 pargdef(def); 284 285 puldefine(def->def_name, def->def.pr.prog_num, PROGRAM); 286 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 287 if (tblflag) { 288 f_print(fout, 289 "extern struct rpcgen_table %s_%s_table[];\n", 290 locase(def->def_name), vers->vers_num); 291 f_print(fout, 292 "extern int %s_%s_nproc;\n", 293 locase(def->def_name), vers->vers_num); 294 } 295 puldefine(vers->vers_name, vers->vers_num, VERSION); 296 297 /* 298 * Print out 2 definitions, one for ANSI-C, another for 299 * old K & R C 300 */ 301 302 if (!Cflag) { 303 ext = "extern "; 304 for (proc = vers->procs; proc != NULL; 305 proc = proc->next) { 306 if (!define_printed(proc, def->def.pr.versions)) 307 puldefine(proc->proc_name, 308 proc->proc_num, PROCEDURE); 309 f_print(fout, "%s", ext); 310 pprocdef(proc, vers, NULL, 0, 2); 311 312 if (mtflag) { 313 f_print(fout, "%s", ext); 314 pprocdef(proc, vers, NULL, 1, 2); 315 } 316 } 317 pfreeprocdef(def->def_name, vers->vers_num, 2); 318 } else { 319 for (i = 1; i < 3; i++) { 320 if (i == 1) { 321 f_print(fout, "\n#if defined(__STDC__)" 322 " || defined(__cplusplus)\n"); 323 ext = "extern "; 324 } else { 325 f_print(fout, "\n#else /* K&R C */\n"); 326 ext = "extern "; 327 } 328 329 for (proc = vers->procs; proc != NULL; 330 proc = proc->next) { 331 if (!define_printed(proc, 332 def->def.pr.versions)) { 333 puldefine(proc->proc_name, 334 proc->proc_num, PROCEDURE); 335 } 336 f_print(fout, "%s", ext); 337 pprocdef(proc, vers, "CLIENT *", 0, i); 338 f_print(fout, "%s", ext); 339 pprocdef(proc, vers, 340 "struct svc_req *", 1, i); 341 } 342 pfreeprocdef(def->def_name, vers->vers_num, i); 343 } 344 f_print(fout, "#endif /* K&R C */\n"); 345 } 346 } 347 } 348 349 void 350 pprocdef(proc_list *proc, version_list *vp, char *addargtype, int server_p, 351 int mode) 352 { 353 if (mtflag) { 354 /* Print MT style stubs */ 355 if (server_p) 356 f_print(fout, "bool_t "); 357 else 358 f_print(fout, "enum clnt_stat "); 359 } else { 360 ptype(proc->res_prefix, proc->res_type, 1); 361 f_print(fout, "* "); 362 } 363 if (server_p) 364 pvname_svc(proc->proc_name, vp->vers_num); 365 else 366 pvname(proc->proc_name, vp->vers_num); 367 368 /* 369 * mode 1 = ANSI-C, mode 2 = K&R C 370 */ 371 if (mode == 1) 372 parglist(proc, addargtype); 373 else 374 f_print(fout, "();\n"); 375 } 376 377 /* print out argument list of procedure */ 378 static void 379 parglist(proc_list *proc, char *addargtype) 380 { 381 decl_list *dl; 382 int oneway = streq(proc->res_type, "oneway"); 383 384 f_print(fout, "("); 385 if (proc->arg_num < 2 && newstyle && 386 streq(proc->args.decls->decl.type, "void")) { 387 /* 0 argument in new style: do nothing */ 388 /* EMPTY */ 389 } else { 390 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 391 ptype(dl->decl.prefix, dl->decl.type, 1); 392 if (!newstyle || (dl->decl.rel == REL_POINTER)) 393 f_print(fout, "*"); 394 /* old style passes by reference */ 395 f_print(fout, ", "); 396 } 397 } 398 399 if (mtflag && !oneway) { 400 ptype(proc->res_prefix, proc->res_type, 1); 401 f_print(fout, "*, "); 402 } 403 404 f_print(fout, "%s);\n", addargtype); 405 } 406 407 static void 408 penumdef(definition *def) 409 { 410 char *name = def->def_name; 411 enumval_list *l; 412 char *last = NULL; 413 int count = 0; 414 415 f_print(fout, "enum %s {\n", name); 416 for (l = def->def.en.vals; l != NULL; l = l->next) { 417 f_print(fout, "\t%s", l->name); 418 if (l->assignment) { 419 f_print(fout, " = %s", l->assignment); 420 last = l->assignment; 421 count = 1; 422 } else { 423 if (last == NULL) 424 f_print(fout, " = %d", count++); 425 else 426 f_print(fout, " = %s + %d", last, count++); 427 } 428 if (l->next) 429 f_print(fout, ",\n"); 430 else 431 f_print(fout, "\n"); 432 } 433 f_print(fout, "};\n"); 434 f_print(fout, "typedef enum %s %s;\n", name, name); 435 } 436 437 static void 438 ptypedef(definition *def) 439 { 440 char *name = def->def_name; 441 char *old = def->def.ty.old_type; 442 char prefix[8]; /* enough to contain "struct ", including NUL */ 443 relation rel = def->def.ty.rel; 444 445 446 if (!streq(name, old)) { 447 if (streq(old, "string")) { 448 old = "char"; 449 rel = REL_POINTER; 450 } else if (streq(old, "opaque")) { 451 old = "char"; 452 } else if (streq(old, "bool")) { 453 old = "bool_t"; 454 } 455 if (undefined2(old, name) && def->def.ty.old_prefix) 456 (void) snprintf(prefix, sizeof (prefix), "%s ", 457 def->def.ty.old_prefix); 458 else 459 prefix[0] = 0; 460 f_print(fout, "typedef "); 461 switch (rel) { 462 case REL_ARRAY: 463 f_print(fout, "struct {\n"); 464 f_print(fout, "\tu_int %s_len;\n", name); 465 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 466 f_print(fout, "} %s", name); 467 break; 468 case REL_POINTER: 469 f_print(fout, "%s%s *%s", prefix, old, name); 470 break; 471 case REL_VECTOR: 472 f_print(fout, "%s%s %s[%s]", prefix, old, name, 473 def->def.ty.array_max); 474 break; 475 case REL_ALIAS: 476 f_print(fout, "%s%s %s", prefix, old, name); 477 break; 478 } 479 f_print(fout, ";\n"); 480 } 481 } 482 483 void 484 pdeclaration(char *name, declaration *dec, int tab, char *separator) 485 { 486 char buf[8]; /* enough to hold "struct ", include NUL */ 487 char *prefix; 488 char *type; 489 490 if (streq(dec->type, "void")) 491 return; 492 tabify(fout, tab); 493 if (streq(dec->type, name) && !dec->prefix) 494 f_print(fout, "struct "); 495 if (streq(dec->type, "string")) { 496 f_print(fout, "char *%s", dec->name); 497 } else { 498 prefix = ""; 499 if (streq(dec->type, "bool")) { 500 type = "bool_t"; 501 } else if (streq(dec->type, "opaque")) { 502 type = "char"; 503 } else { 504 if (dec->prefix) { 505 (void) snprintf(buf, sizeof (buf), 506 "%s ", dec->prefix); 507 prefix = buf; 508 } 509 type = dec->type; 510 } 511 switch (dec->rel) { 512 case REL_ALIAS: 513 f_print(fout, "%s%s %s", prefix, type, dec->name); 514 break; 515 case REL_VECTOR: 516 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 517 dec->array_max); 518 break; 519 case REL_POINTER: 520 f_print(fout, "%s%s *%s", prefix, type, dec->name); 521 break; 522 case REL_ARRAY: 523 f_print(fout, "struct {\n"); 524 tabify(fout, tab); 525 f_print(fout, "\tu_int %s_len;\n", dec->name); 526 tabify(fout, tab); 527 f_print(fout, 528 "\t%s%s *%s_val;\n", prefix, type, dec->name); 529 tabify(fout, tab); 530 f_print(fout, "} %s", dec->name); 531 break; 532 } 533 } 534 /* LINTED variable format */ 535 f_print(fout, separator); 536 } 537 538 static uint_t 539 undefined2(char *type, char *stop) 540 { 541 list *l; 542 definition *def; 543 544 for (l = defined; l != NULL; l = l->next) { 545 def = (definition *) l->val; 546 if (def->def_kind != DEF_PROGRAM) { 547 if (streq(def->def_name, stop)) 548 return (1); 549 if (streq(def->def_name, type)) 550 return (0); 551 } 552 } 553 return (1); 554 } 555