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 * Copyright 2001 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 26 /* All Rights Reserved */ 27 /* 28 * University Copyright- Copyright (c) 1982, 1986, 1988 29 * The Regents of the University of California 30 * All Rights Reserved 31 * 32 * University Acknowledgment- Portions of this document are derived from 33 * software developed by the University of California, Berkeley, and its 34 * contributors. 35 */ 36 37 #pragma ident "%Z%%M% %I% %E% SMI" 38 39 /* 40 * rpc_util.c, Utility routines for the RPC protocol compiler 41 */ 42 #include <stdio.h> 43 #include <ctype.h> 44 #include "rpc_scan.h" 45 #include "rpc_parse.h" 46 #include "rpc_util.h" 47 48 #define ARGEXT "argument" 49 50 char curline[MAXLINESIZE]; /* current read line */ 51 char *where = curline; /* current point in line */ 52 int linenum = 0; /* current line number */ 53 54 char *infilename; /* input filename */ 55 56 #define NFILES 15 57 char *outfiles[NFILES]; /* output file names */ 58 int nfiles; 59 60 FILE *fout; /* file pointer of current output */ 61 FILE *fin; /* file pointer of current input */ 62 63 list *defined; /* list of defined things */ 64 65 /* 66 * Reinitialize the world 67 */ 68 reinitialize() 69 { 70 memset(curline, 0, MAXLINESIZE); 71 where = curline; 72 linenum = 0; 73 defined = NULL; 74 } 75 76 /* 77 * string equality 78 */ 79 streq(a, b) 80 char *a; 81 char *b; 82 { 83 return (strcmp(a, b) == 0); 84 } 85 86 /* 87 * find a value in a list 88 */ 89 definition * 90 findval(lst, val, cmp) 91 list *lst; 92 char *val; 93 int (*cmp) (); 94 95 { 96 for (; lst != NULL; lst = lst->next) { 97 if ((*cmp) (lst->val, val)) { 98 return (lst->val); 99 } 100 } 101 return (NULL); 102 } 103 104 /* 105 * store a value in a list 106 */ 107 void 108 storeval(lstp, val) 109 list **lstp; 110 definition *val; 111 { 112 list **l; 113 list *lst; 114 115 for (l = lstp; *l != NULL; l = (list **) & (*l)->next); 116 lst = ALLOC(list); 117 lst->val = val; 118 lst->next = NULL; 119 *l = lst; 120 } 121 122 static 123 findit(def, type) 124 definition *def; 125 char *type; 126 { 127 return (streq(def->def_name, type)); 128 } 129 130 static char * 131 fixit(type, orig) 132 char *type; 133 char *orig; 134 { 135 definition *def; 136 137 def = (definition *) FINDVAL(defined, type, findit); 138 if (def == NULL || def->def_kind != DEF_TYPEDEF) { 139 return (orig); 140 } 141 switch (def->def.ty.rel) { 142 case REL_VECTOR: 143 if (streq(def->def.ty.old_type, "opaque")) 144 return ("char"); 145 else 146 return (def->def.ty.old_type); 147 148 case REL_ALIAS: 149 return (fixit(def->def.ty.old_type, orig)); 150 default: 151 return (orig); 152 } 153 } 154 155 char * 156 fixtype(type) 157 char *type; 158 { 159 return (fixit(type, type)); 160 } 161 162 char * 163 stringfix(type) 164 char *type; 165 { 166 if (streq(type, "string")) { 167 return ("wrapstring"); 168 } else { 169 return (type); 170 } 171 } 172 173 void 174 ptype(prefix, type, follow) 175 char *prefix; 176 char *type; 177 int follow; 178 { 179 if (prefix != NULL) { 180 if (streq(prefix, "enum")) { 181 f_print(fout, "enum "); 182 } else { 183 f_print(fout, "struct "); 184 } 185 } 186 if (streq(type, "bool")) { 187 f_print(fout, "bool_t "); 188 } else if (streq(type, "string")) { 189 f_print(fout, "char *"); 190 } else if (streq(type, "oneway")) { 191 f_print(fout, "void "); 192 } else { 193 f_print(fout, "%s ", follow ? fixtype(type) : type); 194 } 195 } 196 197 static 198 typedefed(def, type) 199 definition *def; 200 char *type; 201 { 202 if (def->def_kind != DEF_TYPEDEF || def->def.ty.old_prefix != NULL) { 203 return (0); 204 } else { 205 return (streq(def->def_name, type)); 206 } 207 } 208 209 isvectordef(type, rel) 210 char *type; 211 relation rel; 212 { 213 definition *def; 214 215 for (;;) { 216 switch (rel) { 217 case REL_VECTOR: 218 return (!streq(type, "string")); 219 case REL_ARRAY: 220 return (0); 221 case REL_POINTER: 222 return (0); 223 case REL_ALIAS: 224 def = (definition *) FINDVAL(defined, type, typedefed); 225 if (def == NULL) 226 return (0); 227 type = def->def.ty.old_type; 228 rel = def->def.ty.rel; 229 } 230 } 231 } 232 233 char * 234 locase(str) 235 char *str; 236 { 237 char c; 238 static char buf[100]; 239 char *p = buf; 240 241 while (c = *str++) { 242 *p++ = (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c; 243 } 244 *p = 0; 245 return (buf); 246 } 247 248 void 249 pvname_svc(pname, vnum) 250 char *pname; 251 char *vnum; 252 { 253 f_print(fout, "%s_%s_svc", locase(pname), vnum); 254 } 255 256 void 257 pvname(pname, vnum) 258 char *pname; 259 char *vnum; 260 { 261 f_print(fout, "%s_%s", locase(pname), vnum); 262 } 263 264 /* 265 * print a useful (?) error message, and then die 266 */ 267 void 268 error(msg) 269 char *msg; 270 { 271 printwhere(); 272 f_print(stderr, "%s, line %d: ", infilename, linenum); 273 f_print(stderr, "%s\n", msg); 274 crash(); 275 } 276 277 /* 278 * Something went wrong, unlink any files that we may have created and then 279 * die. 280 */ 281 crash() 282 { 283 int i; 284 285 for (i = 0; i < nfiles; i++) { 286 (void) unlink(outfiles[i]); 287 } 288 exit(1); 289 } 290 291 void 292 record_open(file) 293 char *file; 294 { 295 if (nfiles < NFILES) { 296 outfiles[nfiles++] = file; 297 } else { 298 f_print(stderr, "too many files!\n"); 299 crash(); 300 } 301 } 302 303 static char expectbuf[100]; 304 static char *toktostr(); 305 306 /* 307 * error, token encountered was not the expected one 308 */ 309 void 310 expected1(exp1) 311 tok_kind exp1; 312 { 313 s_print(expectbuf, "expected '%s'", 314 toktostr(exp1)); 315 error(expectbuf); 316 } 317 318 /* 319 * error, token encountered was not one of two expected ones 320 */ 321 void 322 expected2(exp1, exp2) 323 tok_kind exp1, exp2; 324 { 325 s_print(expectbuf, "expected '%s' or '%s'", 326 toktostr(exp1), 327 toktostr(exp2)); 328 error(expectbuf); 329 } 330 331 /* 332 * error, token encountered was not one of 3 expected ones 333 */ 334 void 335 expected3(exp1, exp2, exp3) 336 tok_kind exp1, exp2, exp3; 337 { 338 s_print(expectbuf, "expected '%s', '%s' or '%s'", 339 toktostr(exp1), 340 toktostr(exp2), 341 toktostr(exp3)); 342 error(expectbuf); 343 } 344 345 void 346 tabify(f, tab) 347 FILE *f; 348 int tab; 349 { 350 while (tab--) { 351 (void) fputc('\t', f); 352 } 353 } 354 355 356 static token tokstrings[] = { 357 {TOK_IDENT, "identifier"}, 358 {TOK_CONST, "const"}, 359 {TOK_RPAREN, ")"}, 360 {TOK_LPAREN, "("}, 361 {TOK_RBRACE, "}"}, 362 {TOK_LBRACE, "{"}, 363 {TOK_LBRACKET, "["}, 364 {TOK_RBRACKET, "]"}, 365 {TOK_STAR, "*"}, 366 {TOK_COMMA, ","}, 367 {TOK_EQUAL, "="}, 368 {TOK_COLON, ":"}, 369 {TOK_SEMICOLON, ";"}, 370 {TOK_UNION, "union"}, 371 {TOK_STRUCT, "struct"}, 372 {TOK_SWITCH, "switch"}, 373 {TOK_CASE, "case"}, 374 {TOK_DEFAULT, "default"}, 375 {TOK_ENUM, "enum"}, 376 {TOK_TYPEDEF, "typedef"}, 377 {TOK_INT, "int"}, 378 {TOK_SHORT, "short"}, 379 {TOK_LONG, "long"}, 380 {TOK_UNSIGNED, "unsigned"}, 381 {TOK_DOUBLE, "double"}, 382 {TOK_FLOAT, "float"}, 383 {TOK_CHAR, "char"}, 384 {TOK_STRING, "string"}, 385 {TOK_OPAQUE, "opaque"}, 386 {TOK_BOOL, "bool"}, 387 {TOK_VOID, "void"}, 388 {TOK_PROGRAM, "program"}, 389 {TOK_VERSION, "version"}, 390 {TOK_EOF, "??????"} 391 }; 392 393 static char * 394 toktostr(kind) 395 tok_kind kind; 396 { 397 token *sp; 398 399 for (sp = tokstrings; sp->kind != TOK_EOF && sp->kind != kind; sp++); 400 return (sp->str); 401 } 402 403 static 404 printbuf() 405 { 406 char c; 407 int i; 408 int cnt; 409 410 # define TABSIZE 4 411 412 for (i = 0; c = curline[i]; i++) { 413 if (c == '\t') { 414 cnt = 8 - (i % TABSIZE); 415 c = ' '; 416 } else { 417 cnt = 1; 418 } 419 while (cnt--) { 420 (void) fputc(c, stderr); 421 } 422 } 423 } 424 425 static 426 printwhere() 427 { 428 int i; 429 char c; 430 int cnt; 431 432 printbuf(); 433 for (i = 0; i < where - curline; i++) { 434 c = curline[i]; 435 if (c == '\t') { 436 cnt = 8 - (i % TABSIZE); 437 } else { 438 cnt = 1; 439 } 440 while (cnt--) { 441 (void) fputc('^', stderr); 442 } 443 } 444 (void) fputc('\n', stderr); 445 } 446 447 char * 448 make_argname(pname, vname) 449 char *pname; 450 char *vname; 451 { 452 char *name; 453 454 name = malloc(strlen(pname) + strlen(vname) + strlen(ARGEXT) + 3); 455 if (!name) { 456 fprintf(stderr, "failed in malloc"); 457 exit(1); 458 } 459 sprintf(name, "%s_%s_%s", locase(pname), vname, ARGEXT); 460 return (name); 461 } 462 463 bas_type *typ_list_h; 464 bas_type *typ_list_t; 465 466 add_type(len, type) 467 int len; 468 char *type; 469 { 470 bas_type *ptr; 471 472 if ((ptr = (bas_type *) malloc(sizeof (bas_type))) == 473 (bas_type *)NULL) { 474 fprintf(stderr, "failed in malloc"); 475 exit(1); 476 } 477 478 ptr->name = type; 479 ptr->length = len; 480 ptr->next = NULL; 481 if (typ_list_t == NULL) 482 { 483 484 typ_list_t = ptr; 485 typ_list_h = ptr; 486 } 487 else 488 { 489 typ_list_t->next = ptr; 490 typ_list_t = ptr; 491 }; 492 } 493 494 495 bas_type *find_type(type) 496 char *type; 497 { 498 bas_type * ptr; 499 500 ptr = typ_list_h; 501 while (ptr != NULL) 502 { 503 if (strcmp(ptr->name, type) == 0) 504 return (ptr); 505 else 506 ptr = ptr->next; 507 }; 508 return (NULL); 509 } 510