1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 */ 29 30 #if 0 31 #ifndef lint 32 #ident "@(#)rpc_hout.c 1.16 94/04/25 SMI" 33 static char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI"; 34 #endif 35 #endif 36 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 /* 41 * rpc_hout.c, Header file outputter for the RPC protocol compiler 42 * Copyright (C) 1987, Sun Microsystems, Inc. 43 */ 44 #include <stdio.h> 45 #include <ctype.h> 46 #include "rpc_parse.h" 47 #include "rpc_scan.h" 48 #include "rpc_util.h" 49 50 void storexdrfuncdecl(const char *, int ); 51 static void pconstdef( definition * ); 52 static void pstructdef( definition * ); 53 static void puniondef( definition * ); 54 static void pprogramdef( definition *, int ); 55 static void penumdef( definition * ); 56 static void ptypedef( definition * ); 57 static void pdefine(const char *, const char *); 58 static int undefined2(const char *, const char *); 59 static void parglist(proc_list *, const char *); 60 static void pprocdef(proc_list *, version_list *, const char *, int); 61 62 /* 63 * Print the C-version of an xdr definition 64 */ 65 void 66 print_datadef(definition *def, int headeronly) 67 { 68 69 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 70 return; 71 72 if (def->def_kind != DEF_CONST) { 73 f_print(fout, "\n"); 74 } 75 switch (def->def_kind) { 76 case DEF_STRUCT: 77 pstructdef(def); 78 break; 79 case DEF_UNION: 80 puniondef(def); 81 break; 82 case DEF_ENUM: 83 penumdef(def); 84 break; 85 case DEF_TYPEDEF: 86 ptypedef(def); 87 break; 88 case DEF_PROGRAM: 89 pprogramdef(def, headeronly); 90 break; 91 case DEF_CONST: 92 pconstdef(def); 93 break; 94 } 95 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 96 storexdrfuncdecl(def->def_name, 97 def->def_kind != DEF_TYPEDEF || 98 !isvectordef(def->def.ty.old_type, 99 def->def.ty.rel)); 100 } 101 } 102 103 104 void 105 print_funcdef(definition *def, int headeronly) 106 { 107 switch (def->def_kind) { 108 case DEF_PROGRAM: 109 f_print(fout, "\n"); 110 pprogramdef(def, headeronly); 111 break; 112 default: 113 break; 114 } 115 } 116 117 /* store away enough information to allow the XDR functions to be spat 118 out at the end of the file */ 119 120 void 121 storexdrfuncdecl(const char *name, int pointerp) 122 { 123 xdrfunc * xdrptr; 124 125 xdrptr = XALLOC(struct xdrfunc); 126 127 xdrptr->name = name; 128 xdrptr->pointerp = pointerp; 129 xdrptr->next = NULL; 130 131 if (xdrfunc_tail == NULL){ 132 xdrfunc_head = xdrptr; 133 xdrfunc_tail = xdrptr; 134 } else { 135 xdrfunc_tail->next = xdrptr; 136 xdrfunc_tail = xdrptr; 137 } 138 139 140 } 141 142 void 143 print_xdr_func_def(const char *name, int pointerp) 144 { 145 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 146 name, pointerp ? "*" : ""); 147 } 148 149 150 static void 151 pconstdef(def) 152 definition *def; 153 { 154 pdefine(def->def_name, def->def.co); 155 } 156 157 /* print out the definitions for the arguments of functions in the 158 header file 159 */ 160 static void 161 pargdef(definition *def) 162 { 163 decl_list *l; 164 version_list *vers; 165 char *name; 166 proc_list *plist; 167 168 169 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 170 for (plist = vers->procs; plist != NULL; 171 plist = plist->next) { 172 173 if (!newstyle || plist->arg_num < 2) { 174 continue; /* old style or single args */ 175 } 176 name = plist->args.argname; 177 f_print(fout, "struct %s {\n", name); 178 for (l = plist->args.decls; 179 l != NULL; l = l->next) { 180 pdeclaration(name, &l->decl, 1, 181 ";\n"); 182 } 183 f_print(fout, "};\n"); 184 f_print(fout, "typedef struct %s %s;\n", 185 name, name); 186 storexdrfuncdecl(name, 1); 187 f_print(fout, "\n"); 188 } 189 } 190 } 191 192 193 static void 194 pstructdef(definition *def) 195 { 196 decl_list *l; 197 const char *name = def->def_name; 198 199 f_print(fout, "struct %s {\n", name); 200 for (l = def->def.st.decls; l != NULL; l = l->next) { 201 pdeclaration(name, &l->decl, 1, ";\n"); 202 } 203 f_print(fout, "};\n"); 204 f_print(fout, "typedef struct %s %s;\n", name, name); 205 } 206 207 static void 208 puniondef(def) 209 definition *def; 210 { 211 case_list *l; 212 const char *name = def->def_name; 213 declaration *decl; 214 215 f_print(fout, "struct %s {\n", name); 216 decl = &def->def.un.enum_decl; 217 if (streq(decl->type, "bool")) { 218 f_print(fout, "\tbool_t %s;\n", decl->name); 219 } else { 220 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 221 } 222 f_print(fout, "\tunion {\n"); 223 for (l = def->def.un.cases; l != NULL; l = l->next) { 224 if (l->contflag == 0) 225 pdeclaration(name, &l->case_decl, 2, ";\n"); 226 } 227 decl = def->def.un.default_decl; 228 if (decl && !streq(decl->type, "void")) { 229 pdeclaration(name, decl, 2, ";\n"); 230 } 231 f_print(fout, "\t} %s_u;\n", name); 232 f_print(fout, "};\n"); 233 f_print(fout, "typedef struct %s %s;\n", name, name); 234 } 235 236 static void 237 pdefine(const char *name, const char *num) 238 { 239 f_print(fout, "#define\t%s %s\n", name, num); 240 } 241 242 static void 243 puldefine(const char *name, const char *num) 244 { 245 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 246 } 247 248 static int 249 define_printed(proc_list *stop, version_list *start) 250 { 251 version_list *vers; 252 proc_list *proc; 253 254 for (vers = start; vers != NULL; vers = vers->next) { 255 for (proc = vers->procs; proc != NULL; proc = proc->next) { 256 if (proc == stop) { 257 return (0); 258 } else if (streq(proc->proc_name, stop->proc_name)) { 259 return (1); 260 } 261 } 262 } 263 abort(); 264 /* NOTREACHED */ 265 } 266 267 static void 268 pfreeprocdef(const char * name, const char *vers) 269 { 270 f_print(fout, "extern int "); 271 pvname(name, vers); 272 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 273 } 274 275 static void 276 pdispatch(const char * name, const char *vers) 277 { 278 279 f_print(fout, "void "); 280 pvname(name, vers); 281 f_print(fout, "(struct svc_req *rqstp, SVCXPRT *transp);\n"); 282 } 283 284 static void 285 pprogramdef(definition *def, int headeronly) 286 { 287 version_list *vers; 288 proc_list *proc; 289 const char *ext; 290 291 pargdef(def); 292 293 puldefine(def->def_name, def->def.pr.prog_num); 294 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 295 if (tblflag) { 296 f_print(fout, 297 "extern struct rpcgen_table %s_%s_table[];\n", 298 locase(def->def_name), vers->vers_num); 299 f_print(fout, 300 "extern %s_%s_nproc;\n", 301 locase(def->def_name), vers->vers_num); 302 } 303 puldefine(vers->vers_name, vers->vers_num); 304 305 f_print(fout, "\n"); 306 ext = "extern "; 307 if (headeronly) { 308 f_print(fout, "%s", ext); 309 pdispatch(def->def_name, vers->vers_num); 310 } 311 for (proc = vers->procs; proc != NULL; proc = proc->next) { 312 if (!define_printed(proc, def->def.pr.versions)) { 313 puldefine(proc->proc_name, proc->proc_num); 314 } 315 f_print(fout, "%s", ext); 316 pprocdef(proc, vers, "CLIENT *", 0); 317 f_print(fout, "%s", ext); 318 pprocdef(proc, vers, "struct svc_req *", 1); 319 } 320 pfreeprocdef(def->def_name, vers->vers_num); 321 } 322 } 323 324 static void 325 pprocdef(proc_list *proc, version_list *vp, const char *addargtype, int server_p) 326 { 327 if (mtflag) {/* Print MT style stubs */ 328 if (server_p) 329 f_print(fout, "bool_t "); 330 else 331 f_print(fout, "enum clnt_stat "); 332 } else { 333 ptype(proc->res_prefix, proc->res_type, 1); 334 f_print(fout, "* "); 335 } 336 if (server_p) 337 pvname_svc(proc->proc_name, vp->vers_num); 338 else 339 pvname(proc->proc_name, vp->vers_num); 340 341 parglist(proc, addargtype); 342 } 343 344 345 346 /* print out argument list of procedure */ 347 static void 348 parglist(proc_list *proc, const char *addargtype) 349 { 350 decl_list *dl; 351 352 f_print(fout, "("); 353 if (proc->arg_num < 2 && newstyle && 354 streq(proc->args.decls->decl.type, "void")) { 355 /* 0 argument in new style: do nothing*/ 356 } 357 else { 358 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 359 ptype(dl->decl.prefix, dl->decl.type, 1); 360 if (!newstyle) 361 f_print(fout, "*"); 362 /* old style passes by reference */ 363 f_print(fout, ", "); 364 } 365 } 366 367 if (mtflag) { 368 ptype(proc->res_prefix, proc->res_type, 1); 369 f_print(fout, "*, "); 370 } 371 372 f_print(fout, "%s);\n", addargtype); 373 374 } 375 376 static void 377 penumdef(def) 378 definition *def; 379 { 380 const char *name = def->def_name; 381 enumval_list *l; 382 const char *last = NULL; 383 int count = 0; 384 385 f_print(fout, "enum %s {\n", name); 386 for (l = def->def.en.vals; l != NULL; l = l->next) { 387 f_print(fout, "\t%s", l->name); 388 if (l->assignment) { 389 f_print(fout, " = %s", l->assignment); 390 last = l->assignment; 391 count = 1; 392 } else { 393 if (last == NULL) { 394 f_print(fout, " = %d", count++); 395 } else { 396 f_print(fout, " = %s + %d", last, count++); 397 } 398 } 399 if (l->next) 400 f_print(fout, ",\n"); 401 else 402 f_print(fout, "\n"); 403 } 404 f_print(fout, "};\n"); 405 f_print(fout, "typedef enum %s %s;\n", name, name); 406 } 407 408 static void 409 ptypedef(def) 410 definition *def; 411 { 412 const char *name = def->def_name; 413 const char *old = def->def.ty.old_type; 414 char prefix[8]; /* enough to contain "struct ", including NUL */ 415 relation rel = def->def.ty.rel; 416 417 418 if (!streq(name, old)) { 419 if (streq(old, "string")) { 420 old = "char"; 421 rel = REL_POINTER; 422 } else if (streq(old, "opaque")) { 423 old = "char"; 424 } else if (streq(old, "bool")) { 425 old = "bool_t"; 426 } 427 if (undefined2(old, name) && def->def.ty.old_prefix) { 428 s_print(prefix, "%s ", def->def.ty.old_prefix); 429 } else { 430 prefix[0] = 0; 431 } 432 f_print(fout, "typedef "); 433 switch (rel) { 434 case REL_ARRAY: 435 f_print(fout, "struct {\n"); 436 f_print(fout, "\tu_int %s_len;\n", name); 437 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 438 f_print(fout, "} %s", name); 439 break; 440 case REL_POINTER: 441 f_print(fout, "%s%s *%s", prefix, old, name); 442 break; 443 case REL_VECTOR: 444 f_print(fout, "%s%s %s[%s]", prefix, old, name, 445 def->def.ty.array_max); 446 break; 447 case REL_ALIAS: 448 f_print(fout, "%s%s %s", prefix, old, name); 449 break; 450 } 451 f_print(fout, ";\n"); 452 } 453 } 454 455 void 456 pdeclaration(const char *name, declaration *dec, int tab, const char *separator) 457 { 458 char buf[8]; /* enough to hold "struct ", include NUL */ 459 const char *prefix; 460 const char *type; 461 462 if (streq(dec->type, "void")) { 463 return; 464 } 465 tabify(fout, tab); 466 if (streq(dec->type, name) && !dec->prefix) { 467 f_print(fout, "struct "); 468 } 469 if (streq(dec->type, "string")) { 470 f_print(fout, "char *%s", dec->name); 471 } else { 472 prefix = ""; 473 if (streq(dec->type, "bool")) { 474 type = "bool_t"; 475 } else if (streq(dec->type, "opaque")) { 476 type = "char"; 477 } else { 478 if (dec->prefix) { 479 s_print(buf, "%s ", dec->prefix); 480 prefix = buf; 481 } 482 type = dec->type; 483 } 484 switch (dec->rel) { 485 case REL_ALIAS: 486 f_print(fout, "%s%s %s", prefix, type, dec->name); 487 break; 488 case REL_VECTOR: 489 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 490 dec->array_max); 491 break; 492 case REL_POINTER: 493 f_print(fout, "%s%s *%s", prefix, type, dec->name); 494 break; 495 case REL_ARRAY: 496 f_print(fout, "struct {\n"); 497 tabify(fout, tab); 498 f_print(fout, "\tu_int %s_len;\n", dec->name); 499 tabify(fout, tab); 500 f_print(fout, 501 "\t%s%s *%s_val;\n", prefix, type, dec->name); 502 tabify(fout, tab); 503 f_print(fout, "} %s", dec->name); 504 break; 505 } 506 } 507 f_print(fout, separator); 508 } 509 510 static int 511 undefined2(const char *type, const char *stop) 512 { 513 list *l; 514 definition *def; 515 516 for (l = defined; l != NULL; l = l->next) { 517 def = (definition *) l->val; 518 if (def->def_kind != DEF_PROGRAM) { 519 if (streq(def->def_name, stop)) { 520 return (1); 521 } else if (streq(def->def_name, type)) { 522 return (0); 523 } 524 } 525 } 526 return (1); 527 } 528