rpc_util.c revision 1.15
1 /* $NetBSD: rpc_util.c,v 1.15 2015/05/09 23:12:57 dholland Exp $ */ 2 /* 3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 4 * unrestricted use provided that this legend is included on all tape 5 * media and as a part of the software program in whole or part. Users 6 * may copy or modify Sun RPC without charge, but are not authorized 7 * to license or distribute it to anyone else except as part of a product or 8 * program developed by the user or with the express written consent of 9 * Sun Microsystems, Inc. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #endif 35 36 #include <sys/cdefs.h> 37 #if defined(__RCSID) && !defined(lint) 38 #if 0 39 static char sccsid[] = "@(#)rpc_util.c 1.11 89/02/22 (C) 1987 SMI"; 40 #else 41 __RCSID("$NetBSD: rpc_util.c,v 1.15 2015/05/09 23:12:57 dholland Exp $"); 42 #endif 43 #endif 44 45 /* 46 * rpc_util.c, Utility routines for the RPC protocol compiler 47 */ 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <unistd.h> 51 #include <string.h> 52 #include <err.h> 53 #include <ctype.h> 54 #include "rpc_scan.h" 55 #include "rpc_parse.h" 56 #include "rpc_util.h" 57 58 #define ARGEXT "argument" 59 60 static void printwhere(void); 61 62 char curline[MAXLINESIZE]; /* current read line */ 63 char *where = curline; /* current point in line */ 64 int linenum = 0; /* current line number */ 65 66 const char *infilename; /* input filename */ 67 68 #define NFILES 7 69 static const char *outfiles[NFILES]; /* output file names */ 70 int nfiles; 71 72 FILE *fout; /* file pointer of current output */ 73 FILE *fin; /* file pointer of current input */ 74 75 list *defined; /* list of defined things */ 76 77 static const char *toktostr(tok_kind); 78 static void printbuf(void); 79 static void printwhere(void); 80 static int findit(definition *, const char *); 81 static const char *fixit(const char *, const char *); 82 static int typedefed(definition *, const char *); 83 84 /* 85 * Reinitialize the world 86 */ 87 void 88 reinitialize(void) 89 { 90 memset(curline, 0, MAXLINESIZE); 91 where = curline; 92 linenum = 0; 93 defined = NULL; 94 } 95 /* 96 * string equality 97 */ 98 int 99 streq(const char *a, const char *b) 100 { 101 return (strcmp(a, b) == 0); 102 } 103 /* 104 * find a value in a list 105 */ 106 definition * 107 findval(list *lst, const char *val, int (*cmp)(definition *, const char *)) 108 { 109 110 for (; lst != NULL; lst = lst->next) { 111 if ((*cmp) (lst->val, val)) { 112 return (lst->val); 113 } 114 } 115 return (NULL); 116 } 117 /* 118 * store a value in a list 119 */ 120 void 121 storeval(list **lstp, definition *val) 122 { 123 list **l; 124 list *lst; 125 126 127 for (l = lstp; *l != NULL; l = (list **) & (*l)->next); 128 lst = ALLOC(list); 129 lst->val = val; 130 lst->next = NULL; 131 *l = lst; 132 } 133 134 static int 135 findit(definition *def, const char *type) 136 { 137 return (streq(def->def_name, type)); 138 } 139 140 static const char * 141 fixit(const char *type, const char *orig) 142 { 143 definition *def; 144 145 def = (definition *) FINDVAL(defined, type, findit); 146 if (def == NULL || def->def_kind != DEF_TYPEDEF) { 147 return (orig); 148 } 149 switch (def->def.ty.rel) { 150 case REL_VECTOR: 151 return (def->def.ty.old_type); 152 case REL_ALIAS: 153 return (fixit(def->def.ty.old_type, orig)); 154 default: 155 return (orig); 156 } 157 } 158 159 const char * 160 fixtype(const char *type) 161 { 162 return (fixit(type, type)); 163 } 164 165 const char * 166 stringfix(const char *type) 167 { 168 if (streq(type, "string")) { 169 return ("wrapstring"); 170 } else { 171 return (type); 172 } 173 } 174 175 void 176 ptype(const char *prefix, const char *type, int follow) 177 { 178 if (prefix != NULL) { 179 if (streq(prefix, "enum")) { 180 f_print(fout, "enum "); 181 } else { 182 f_print(fout, "struct "); 183 } 184 } 185 if (streq(type, "bool")) { 186 f_print(fout, "bool_t "); 187 } else 188 if (streq(type, "string")) { 189 f_print(fout, "char *"); 190 } else { 191 f_print(fout, "%s ", follow ? fixtype(type) : type); 192 } 193 } 194 195 static int 196 typedefed(definition *def, const char *type) 197 { 198 if (def->def_kind != DEF_TYPEDEF || def->def.ty.old_prefix != NULL) { 199 return (0); 200 } else { 201 return (streq(def->def_name, type)); 202 } 203 } 204 205 int 206 isvectordef(const char *type, relation rel) 207 { 208 definition *def; 209 210 for (;;) { 211 switch (rel) { 212 case REL_VECTOR: 213 return (!streq(type, "string")); 214 case REL_ARRAY: 215 return (0); 216 case REL_POINTER: 217 return (0); 218 case REL_ALIAS: 219 def = (definition *) FINDVAL(defined, type, typedefed); 220 if (def == NULL) { 221 return (0); 222 } 223 type = def->def.ty.old_type; 224 rel = def->def.ty.rel; 225 } 226 } 227 } 228 229 char * 230 locase(const char *str) 231 { 232 char c; 233 static char buf[100]; 234 char *p = buf; 235 236 while ((c = *str++) != '\0') { 237 *p++ = (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c; 238 } 239 *p = 0; 240 return (buf); 241 } 242 243 void 244 pvname_svc(const char *pname, const char *vnum) 245 { 246 f_print(fout, "%s_%s_svc", locase(pname), vnum); 247 } 248 249 void 250 pvname(const char *pname, const char *vnum) 251 { 252 f_print(fout, "%s_%s", locase(pname), vnum); 253 } 254 /* 255 * print a useful (?) error message, and then die 256 */ 257 void 258 error(const char *msg) 259 { 260 printwhere(); 261 f_print(stderr, "%s:%d: %s", infilename, linenum, msg); 262 errx(EXIT_FAILURE, "Cannot recover from this error"); 263 } 264 /* 265 * Something went wrong, unlink any files that we may have created and then 266 * die. 267 */ 268 void 269 crash(void) 270 { 271 int i; 272 273 if (!docleanup) 274 return; 275 276 for (i = 0; i < nfiles; i++) { 277 (void) unlink(outfiles[i]); 278 } 279 } 280 281 void 282 record_open(const char *file) 283 { 284 if (nfiles < NFILES) { 285 outfiles[nfiles++] = file; 286 } else { 287 errx(EXIT_FAILURE, "Too many files!"); 288 } 289 } 290 291 static char expectbuf[100]; 292 293 /* 294 * error, token encountered was not the expected one 295 */ 296 void 297 expected1(tok_kind exp1) 298 { 299 s_print(expectbuf, "Expected '%s'", 300 toktostr(exp1)); 301 error(expectbuf); 302 } 303 /* 304 * error, token encountered was not one of two expected ones 305 */ 306 void 307 expected2(tok_kind exp1, tok_kind exp2) 308 { 309 s_print(expectbuf, "Expected '%s' or '%s'", 310 toktostr(exp1), 311 toktostr(exp2)); 312 error(expectbuf); 313 } 314 /* 315 * error, token encountered was not one of 3 expected ones 316 */ 317 void 318 expected3(tok_kind exp1, tok_kind exp2, tok_kind exp3) 319 { 320 s_print(expectbuf, "Expected '%s', '%s', or '%s'", 321 toktostr(exp1), 322 toktostr(exp2), 323 toktostr(exp3)); 324 error(expectbuf); 325 } 326 327 void 328 tabify(FILE *f, int tab) 329 { 330 while (tab--) { 331 (void) fputc('\t', f); 332 } 333 } 334 335 336 static token tokstrings[] = { 337 {TOK_IDENT, "identifier"}, 338 {TOK_CONST, "const"}, 339 {TOK_RPAREN, ")"}, 340 {TOK_LPAREN, "("}, 341 {TOK_RBRACE, "}"}, 342 {TOK_LBRACE, "{"}, 343 {TOK_LBRACKET, "["}, 344 {TOK_RBRACKET, "]"}, 345 {TOK_STAR, "*"}, 346 {TOK_COMMA, ","}, 347 {TOK_EQUAL, "="}, 348 {TOK_COLON, ":"}, 349 {TOK_SEMICOLON, ";"}, 350 {TOK_UNION, "union"}, 351 {TOK_STRUCT, "struct"}, 352 {TOK_SWITCH, "switch"}, 353 {TOK_CASE, "case"}, 354 {TOK_DEFAULT, "default"}, 355 {TOK_ENUM, "enum"}, 356 {TOK_TYPEDEF, "typedef"}, 357 {TOK_INT, "int"}, 358 {TOK_SHORT, "short"}, 359 {TOK_LONG, "long"}, 360 {TOK_UNSIGNED, "unsigned"}, 361 {TOK_DOUBLE, "double"}, 362 {TOK_FLOAT, "float"}, 363 {TOK_CHAR, "char"}, 364 {TOK_STRING, "string"}, 365 {TOK_OPAQUE, "opaque"}, 366 {TOK_BOOL, "bool"}, 367 {TOK_VOID, "void"}, 368 {TOK_PROGRAM, "program"}, 369 {TOK_VERSION, "version"}, 370 {TOK_EOF, "??????"} 371 }; 372 373 static const char * 374 toktostr(tok_kind kind) 375 { 376 token *sp; 377 378 for (sp = tokstrings; sp->kind != TOK_EOF && sp->kind != kind; sp++); 379 return (sp->str); 380 } 381 382 static void 383 printbuf(void) 384 { 385 char c; 386 int i; 387 int cnt; 388 389 #define TABSIZE 4 390 391 for (i = 0; (c = curline[i]) != '\0'; i++) { 392 if (c == '\t') { 393 cnt = 8 - (i % TABSIZE); 394 c = ' '; 395 } else { 396 cnt = 1; 397 } 398 while (cnt--) { 399 (void) fputc(c, stderr); 400 } 401 } 402 } 403 404 static void 405 printwhere(void) 406 { 407 int i; 408 char c; 409 int cnt; 410 411 printbuf(); 412 for (i = 0; i < where - curline; i++) { 413 c = curline[i]; 414 if (c == '\t') { 415 cnt = 8 - (i % TABSIZE); 416 } else { 417 cnt = 1; 418 } 419 while (cnt--) { 420 (void) fputc('^', stderr); 421 } 422 } 423 (void) fputc('\n', stderr); 424 } 425 426 char * 427 make_argname(const char *pname, const char *vname) 428 { 429 char *name; 430 size_t len; 431 432 len = strlen(pname) + strlen(vname) + strlen(ARGEXT) + 3; 433 name = malloc(len); 434 if (!name) { 435 fprintf(stderr, "failed in malloc"); 436 exit(1); 437 } 438 snprintf(name, len, "%s_%s_%s", locase(pname), vname, ARGEXT); 439 return (name); 440 } 441 442 bas_type *typ_list_h; 443 bas_type *typ_list_t; 444 445 void 446 add_type(int len, const char *type) 447 { 448 bas_type *ptr; 449 450 if ((ptr = malloc(sizeof(bas_type))) == NULL) { 451 fprintf(stderr, "failed in malloc"); 452 exit(1); 453 } 454 ptr->name = type; 455 ptr->length = len; 456 ptr->next = NULL; 457 if (typ_list_t == NULL) { 458 typ_list_t = ptr; 459 typ_list_h = ptr; 460 } else { 461 typ_list_t->next = ptr; 462 typ_list_t = ptr; 463 } 464 } 465 466 bas_type * 467 find_type(const char *type) 468 { 469 bas_type *ptr; 470 471 ptr = typ_list_h; 472 473 474 while (ptr != NULL) { 475 if (strcmp(ptr->name, type) == 0) 476 return (ptr); 477 else 478 ptr = ptr->next; 479 } 480 return (NULL); 481 } 482
Indexes created Mon Sep 22 13:09:51 GMT 2025