1 /* $NetBSD: rpc_hout.c,v 1.22 2013/12/15 00:40:17 christos 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_hout.c 1.12 89/02/22 (C) 1987 SMI"; 40 #else 41 __RCSID("$NetBSD: rpc_hout.c,v 1.22 2013/12/15 00:40:17 christos Exp $"); 42 #endif 43 #endif 44 45 /* 46 * rpc_hout.c, Header file outputter for the RPC protocol compiler 47 */ 48 #include <ctype.h> 49 #include <err.h> 50 #include <stdio.h> 51 #include "rpc_scan.h" 52 #include "rpc_parse.h" 53 #include "rpc_util.h" 54 55 static void pconstdef(definition *); 56 static void pargdef(definition *); 57 static void pstructdef(definition *); 58 static void puniondef(definition *); 59 static void pdefine(const char *, const char *); 60 static void puldefine(const char *, const char *); 61 static int define_printed(proc_list *, version_list *); 62 static void pprogramdef(definition *); 63 static void penumdef(definition *); 64 static void ptypedef(definition *); 65 static int undefined2(const char *, const char *); 66 static void cplusplusstart(void); 67 static void cplusplusend(void); 68 69 /* 70 * Print the C-version of an xdr definition 71 */ 72 void 73 print_datadef(definition *def) 74 { 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 } 82 switch (def->def_kind) { 83 case DEF_STRUCT: 84 pstructdef(def); 85 break; 86 case DEF_UNION: 87 puniondef(def); 88 break; 89 case DEF_ENUM: 90 penumdef(def); 91 break; 92 case DEF_TYPEDEF: 93 ptypedef(def); 94 break; 95 case DEF_PROGRAM: 96 pprogramdef(def); 97 break; 98 case DEF_CONST: 99 pconstdef(def); 100 break; 101 } 102 } 103 104 void 105 print_progdef(definition *def) 106 { 107 switch (def->def_kind) { 108 case DEF_PROGRAM: 109 f_print(fout, "\n"); 110 pprogramdef(def); 111 break; 112 case DEF_CONST: 113 case DEF_TYPEDEF: 114 case DEF_ENUM: 115 case DEF_UNION: 116 case DEF_STRUCT: 117 break; 118 } 119 } 120 121 void 122 print_funcdef(definition *def, int *did) 123 { 124 switch (def->def_kind) { 125 case DEF_PROGRAM: 126 case DEF_CONST: 127 break; 128 case DEF_TYPEDEF: 129 case DEF_ENUM: 130 case DEF_UNION: 131 case DEF_STRUCT: 132 if (!*did) { 133 f_print(fout, "\n"); 134 cplusplusstart(); 135 *did = 1; 136 } 137 pxdrfuncdecl(def->def_name, 138 def->def_kind != DEF_TYPEDEF || 139 !isvectordef(def->def.ty.old_type, def->def.ty.rel)); 140 break; 141 } 142 } 143 144 void 145 print_funcend(int did) { 146 if (did) { 147 cplusplusend(); 148 } 149 } 150 151 void 152 pxdrfuncdecl(const char *name, int pointerp) 153 { 154 155 f_print(fout, "bool_t xdr_%s(XDR *, %s%s);\n", name, 156 name, pointerp ? (" *") : ""); 157 } 158 159 160 static void 161 pconstdef(definition *def) 162 { 163 pdefine(def->def_name, def->def.co); 164 } 165 166 /* print out the definitions for the arguments of functions in the 167 header file 168 */ 169 static void 170 pargdef(definition *def) 171 { 172 decl_list *l; 173 version_list *vers; 174 char *name; 175 proc_list *plist; 176 int did; 177 178 179 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 180 for (plist = vers->procs; plist != NULL; plist = plist->next) { 181 if (!newstyle || plist->arg_num < 2) { 182 continue; /* old style or single args */ 183 } 184 name = plist->args.argname; 185 f_print(fout, "struct %s {\n", name); 186 for (l = plist->args.decls; 187 l != NULL; l = l->next) { 188 pdeclaration(name, &l->decl, 1, ";\n"); 189 } 190 f_print(fout, "};\n"); 191 f_print(fout, "typedef struct %s %s;\n", name, name); 192 } 193 } 194 did = 0; 195 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 196 if (!newstyle || plist->arg_num < 2) { 197 continue; /* old style or single args */ 198 } 199 for (plist = vers->procs; plist != NULL; plist = plist->next) { 200 if (!did) { 201 cplusplusstart(); 202 did = 1; 203 } 204 pxdrfuncdecl(plist->args.argname, 1); 205 } 206 } 207 if (did) { 208 cplusplusend(); 209 } 210 211 } 212 213 214 static void 215 pstructdef(definition *def) 216 { 217 decl_list *l; 218 const char *name = def->def_name; 219 220 f_print(fout, "struct %s {\n", name); 221 for (l = def->def.st.decls; l != NULL; l = l->next) { 222 pdeclaration(name, &l->decl, 1, ";\n"); 223 } 224 f_print(fout, "};\n"); 225 f_print(fout, "typedef struct %s %s;\n", name, name); 226 } 227 228 static void 229 puniondef(definition *def) 230 { 231 case_list *l; 232 const char *name = def->def_name; 233 declaration *decl; 234 235 f_print(fout, "struct %s {\n", name); 236 decl = &def->def.un.enum_decl; 237 if (streq(decl->type, "bool")) { 238 f_print(fout, "\tbool_t %s;\n", decl->name); 239 } else { 240 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 241 } 242 f_print(fout, "\tunion {\n"); 243 for (l = def->def.un.cases; l != NULL; l = l->next) { 244 if (l->contflag == 0) 245 pdeclaration(name, &l->case_decl, 2, ";\n"); 246 } 247 decl = def->def.un.default_decl; 248 if (decl && !streq(decl->type, "void")) { 249 pdeclaration(name, decl, 2, ";\n"); 250 } 251 f_print(fout, "\t} %s_u;\n", name); 252 f_print(fout, "};\n"); 253 f_print(fout, "typedef struct %s %s;\n", name, name); 254 } 255 256 static void 257 pdefine(const char *name, const char *num) 258 { 259 f_print(fout, "#define %s %s\n", name, num); 260 } 261 262 static void 263 puldefine(const char *name, const char *num) 264 { 265 f_print(fout, "#define %s %s\n", name, num); 266 } 267 268 static int 269 define_printed(proc_list *stop, version_list *start) 270 { 271 version_list *vers; 272 proc_list *proc; 273 274 for (vers = start; vers != NULL; vers = vers->next) { 275 for (proc = vers->procs; proc != NULL; proc = proc->next) { 276 if (proc == stop) { 277 return (0); 278 } else 279 if (streq(proc->proc_name, stop->proc_name)) { 280 return (1); 281 } 282 } 283 } 284 errx(1, "Internal error %s, %d: procedure not found", 285 __FILE__, __LINE__); 286 /* NOTREACHED */ 287 } 288 289 static void 290 cplusplusstart(void) 291 { 292 if (BSDflag) 293 f_print(fout, "__BEGIN_DECLS\n"); 294 else 295 f_print(fout, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); 296 } 297 298 static void 299 cplusplusend(void) 300 { 301 if (BSDflag) 302 f_print(fout, "__END_DECLS\n"); 303 else 304 f_print(fout, "#ifdef __cplusplus\n};\n#endif\n"); 305 } 306 307 static void 308 pprogramdef(definition *def) 309 { 310 version_list *vers; 311 proc_list *proc; 312 313 pargdef(def); 314 315 puldefine(def->def_name, def->def.pr.prog_num); 316 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 317 if (tblflag) { 318 f_print(fout, "extern struct rpcgen_table %s_%s_table[];\n", 319 locase(def->def_name), vers->vers_num); 320 f_print(fout, "extern %s_%s_nproc;\n", 321 locase(def->def_name), vers->vers_num); 322 } 323 puldefine(vers->vers_name, vers->vers_num); 324 for (proc = vers->procs; proc != NULL; proc = proc->next) { 325 if (!define_printed(proc, def->def.pr.versions)) { 326 puldefine(proc->proc_name, proc->proc_num); 327 } 328 } 329 } 330 331 /* 332 * Print out 3 definitions, one for ANSI-C, another for C++, a 333 * third for old style C 334 */ 335 f_print(fout, "\n"); 336 cplusplusstart(); 337 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 338 for (proc = vers->procs; proc != NULL; proc = proc->next) { 339 pprocdef(proc, vers, "CLIENT *", 0); 340 pprocdef(proc, vers, "struct svc_req *", 1); 341 } 342 } 343 cplusplusend(); 344 } 345 346 void 347 pprocdef(proc_list *proc, version_list *vp, const char *addargtype, 348 int server_p) 349 { 350 decl_list *dl; 351 352 if (Mflag) { 353 if (server_p) 354 f_print(fout, "bool_t "); 355 else 356 f_print(fout, "enum clnt_stat "); 357 } else { 358 ptype(proc->res_prefix, proc->res_type, 1); 359 f_print(fout, "*"); 360 } 361 if (server_p) 362 pvname_svc(proc->proc_name, vp->vers_num); 363 else 364 pvname(proc->proc_name, vp->vers_num); 365 366 f_print(fout, "("); 367 if (proc->arg_num < 2 && newstyle && 368 streq(proc->args.decls->decl.type, "void")) { 369 /* 0 argument in new style: do nothing */ 370 } else { 371 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 372 ptype(dl->decl.prefix, dl->decl.type, 1); 373 if (!newstyle) 374 f_print(fout, "*"); 375 f_print(fout, ", "); 376 } 377 } 378 if (Mflag) { 379 if (streq(proc->res_type, "void")) 380 f_print(fout, "char"); 381 else 382 ptype(proc->res_prefix, proc->res_type, 0); 383 if (!isvectordef(proc->res_type, REL_ALIAS)) 384 f_print(fout, "*"); 385 f_print(fout, ", "); 386 } 387 f_print(fout, "%s);\n", addargtype); 388 } 389 390 391 static void 392 penumdef(definition *def) 393 { 394 const char *name = def->def_name; 395 enumval_list *l; 396 const char *last = NULL; 397 int count = 0; 398 const char *first = ""; 399 400 f_print(fout, "enum %s {\n", name); 401 for (l = def->def.en.vals; l != NULL; l = l->next) { 402 f_print(fout, "%s\t%s", first, l->name); 403 if (l->assignment) { 404 f_print(fout, " = %s", l->assignment); 405 last = l->assignment; 406 count = 1; 407 } else { 408 if (last == NULL) { 409 f_print(fout, " = %d", count++); 410 } else { 411 f_print(fout, " = %s + %d", last, count++); 412 } 413 } 414 first = ",\n"; 415 } 416 f_print(fout, "\n};\n"); 417 f_print(fout, "typedef enum %s %s;\n", name, name); 418 } 419 420 static void 421 ptypedef(definition *def) 422 { 423 const char *name = def->def_name; 424 const char *old = def->def.ty.old_type; 425 char prefix[8]; /* enough to contain "struct ", including NUL */ 426 relation rel = def->def.ty.rel; 427 428 429 if (!streq(name, old)) { 430 if (streq(old, "string")) { 431 old = "char"; 432 rel = REL_POINTER; 433 } else 434 if (streq(old, "opaque")) { 435 old = "char"; 436 } else 437 if (streq(old, "bool")) { 438 old = "bool_t"; 439 } 440 if (undefined2(old, name) && def->def.ty.old_prefix) { 441 s_print(prefix, "%s ", def->def.ty.old_prefix); 442 } else { 443 prefix[0] = 0; 444 } 445 f_print(fout, "typedef "); 446 switch (rel) { 447 case REL_ARRAY: 448 f_print(fout, "struct {\n"); 449 f_print(fout, "\tu_int %s_len;\n", name); 450 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 451 f_print(fout, "} %s", name); 452 break; 453 case REL_POINTER: 454 f_print(fout, "%s%s *%s", prefix, old, name); 455 break; 456 case REL_VECTOR: 457 f_print(fout, "%s%s %s[%s]", prefix, old, name, 458 def->def.ty.array_max); 459 break; 460 case REL_ALIAS: 461 f_print(fout, "%s%s %s", prefix, old, name); 462 break; 463 } 464 f_print(fout, ";\n"); 465 } 466 } 467 468 void 469 pdeclaration(const char *name, declaration *dec, int tab, 470 const char *separator) 471 { 472 char buf[8]; /* enough to hold "struct ", include NUL */ 473 const char *prefix; 474 const char *type; 475 476 if (streq(dec->type, "void")) { 477 return; 478 } 479 tabify(fout, tab); 480 if (streq(dec->type, name) && !dec->prefix) { 481 f_print(fout, "struct "); 482 } 483 if (streq(dec->type, "string")) { 484 f_print(fout, "char *%s", dec->name); 485 } else { 486 prefix = ""; 487 if (streq(dec->type, "bool")) { 488 type = "bool_t"; 489 } else 490 if (streq(dec->type, "opaque")) { 491 type = "char"; 492 } else { 493 if (dec->prefix) { 494 s_print(buf, "%s ", dec->prefix); 495 prefix = buf; 496 } 497 type = dec->type; 498 } 499 switch (dec->rel) { 500 case REL_ALIAS: 501 f_print(fout, "%s%s %s", prefix, type, dec->name); 502 break; 503 case REL_VECTOR: 504 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 505 dec->array_max); 506 break; 507 case REL_POINTER: 508 f_print(fout, "%s%s *%s", prefix, type, dec->name); 509 break; 510 case REL_ARRAY: 511 f_print(fout, "struct {\n"); 512 tabify(fout, tab); 513 f_print(fout, "\tu_int %s_len;\n", dec->name); 514 tabify(fout, tab); 515 f_print(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name); 516 tabify(fout, tab); 517 f_print(fout, "} %s", dec->name); 518 break; 519 } 520 } 521 f_print(fout, "%s", separator); 522 } 523 524 static int 525 undefined2(const char *type, const char *stop) 526 { 527 list *l; 528 definition *def; 529 530 for (l = defined; l != NULL; l = l->next) { 531 def = (definition *) l->val; 532 if (def->def_kind != DEF_PROGRAM) { 533 if (streq(def->def_name, stop)) { 534 return (1); 535 } else 536 if (streq(def->def_name, type)) { 537 return (0); 538 } 539 } 540 } 541 return (1); 542 } 543