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(definition *def) 152 { 153 pdefine(def->def_name, def->def.co); 154 } 155 156 /* print out the definitions for the arguments of functions in the 157 header file 158 */ 159 static void 160 pargdef(definition *def) 161 { 162 decl_list *l; 163 version_list *vers; 164 char *name; 165 proc_list *plist; 166 167 168 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 169 for (plist = vers->procs; plist != NULL; 170 plist = plist->next) { 171 172 if (!newstyle || plist->arg_num < 2) { 173 continue; /* old style or single args */ 174 } 175 name = plist->args.argname; 176 f_print(fout, "struct %s {\n", name); 177 for (l = plist->args.decls; 178 l != NULL; l = l->next) { 179 pdeclaration(name, &l->decl, 1, 180 ";\n"); 181 } 182 f_print(fout, "};\n"); 183 f_print(fout, "typedef struct %s %s;\n", 184 name, name); 185 storexdrfuncdecl(name, 1); 186 f_print(fout, "\n"); 187 } 188 } 189 } 190 191 192 static void 193 pstructdef(definition *def) 194 { 195 decl_list *l; 196 const char *name = def->def_name; 197 198 f_print(fout, "struct %s {\n", name); 199 for (l = def->def.st.decls; l != NULL; l = l->next) { 200 pdeclaration(name, &l->decl, 1, ";\n"); 201 } 202 f_print(fout, "};\n"); 203 f_print(fout, "typedef struct %s %s;\n", name, name); 204 } 205 206 static void 207 puniondef(definition *def) 208 { 209 case_list *l; 210 const char *name = def->def_name; 211 declaration *decl; 212 213 f_print(fout, "struct %s {\n", name); 214 decl = &def->def.un.enum_decl; 215 if (streq(decl->type, "bool")) { 216 f_print(fout, "\tbool_t %s;\n", decl->name); 217 } else { 218 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 219 } 220 f_print(fout, "\tunion {\n"); 221 for (l = def->def.un.cases; l != NULL; l = l->next) { 222 if (l->contflag == 0) 223 pdeclaration(name, &l->case_decl, 2, ";\n"); 224 } 225 decl = def->def.un.default_decl; 226 if (decl && !streq(decl->type, "void")) { 227 pdeclaration(name, decl, 2, ";\n"); 228 } 229 f_print(fout, "\t} %s_u;\n", name); 230 f_print(fout, "};\n"); 231 f_print(fout, "typedef struct %s %s;\n", name, name); 232 } 233 234 static void 235 pdefine(const char *name, const char *num) 236 { 237 f_print(fout, "#define\t%s %s\n", name, num); 238 } 239 240 static void 241 puldefine(const char *name, const char *num) 242 { 243 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 244 } 245 246 static int 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 } else if (streq(proc->proc_name, stop->proc_name)) { 257 return (1); 258 } 259 } 260 } 261 abort(); 262 /* NOTREACHED */ 263 } 264 265 static void 266 pfreeprocdef(const char * name, const char *vers) 267 { 268 f_print(fout, "extern int "); 269 pvname(name, vers); 270 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 271 } 272 273 static void 274 pdispatch(const char * name, const char *vers) 275 { 276 277 f_print(fout, "void "); 278 pvname(name, vers); 279 f_print(fout, "(struct svc_req *rqstp, SVCXPRT *transp);\n"); 280 } 281 282 static void 283 pprogramdef(definition *def, int headeronly) 284 { 285 version_list *vers; 286 proc_list *proc; 287 const char *ext; 288 289 pargdef(def); 290 291 puldefine(def->def_name, def->def.pr.prog_num); 292 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 293 if (tblflag) { 294 f_print(fout, 295 "extern struct rpcgen_table %s_%s_table[];\n", 296 locase(def->def_name), vers->vers_num); 297 f_print(fout, 298 "extern %s_%s_nproc;\n", 299 locase(def->def_name), vers->vers_num); 300 } 301 puldefine(vers->vers_name, vers->vers_num); 302 303 f_print(fout, "\n"); 304 ext = "extern "; 305 if (headeronly) { 306 f_print(fout, "%s", ext); 307 pdispatch(def->def_name, vers->vers_num); 308 } 309 for (proc = vers->procs; proc != NULL; proc = proc->next) { 310 if (!define_printed(proc, def->def.pr.versions)) { 311 puldefine(proc->proc_name, proc->proc_num); 312 } 313 f_print(fout, "%s", ext); 314 pprocdef(proc, vers, "CLIENT *", 0); 315 f_print(fout, "%s", ext); 316 pprocdef(proc, vers, "struct svc_req *", 1); 317 } 318 pfreeprocdef(def->def_name, vers->vers_num); 319 } 320 } 321 322 static void 323 pprocdef(proc_list *proc, version_list *vp, const char *addargtype, int server_p) 324 { 325 if (mtflag) {/* Print MT style stubs */ 326 if (server_p) 327 f_print(fout, "bool_t "); 328 else 329 f_print(fout, "enum clnt_stat "); 330 } else { 331 ptype(proc->res_prefix, proc->res_type, 1); 332 f_print(fout, "* "); 333 } 334 if (server_p) 335 pvname_svc(proc->proc_name, vp->vers_num); 336 else 337 pvname(proc->proc_name, vp->vers_num); 338 339 parglist(proc, addargtype); 340 } 341 342 343 344 /* print out argument list of procedure */ 345 static void 346 parglist(proc_list *proc, const char *addargtype) 347 { 348 decl_list *dl; 349 350 f_print(fout, "("); 351 if (proc->arg_num < 2 && newstyle && 352 streq(proc->args.decls->decl.type, "void")) { 353 /* 0 argument in new style: do nothing*/ 354 } 355 else { 356 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 357 ptype(dl->decl.prefix, dl->decl.type, 1); 358 if (!newstyle) 359 f_print(fout, "*"); 360 /* old style passes by reference */ 361 f_print(fout, ", "); 362 } 363 } 364 365 if (mtflag) { 366 ptype(proc->res_prefix, proc->res_type, 1); 367 f_print(fout, "*, "); 368 } 369 370 f_print(fout, "%s);\n", addargtype); 371 372 } 373 374 static void 375 penumdef(definition *def) 376 { 377 const char *name = def->def_name; 378 enumval_list *l; 379 const char *last = NULL; 380 int count = 0; 381 382 f_print(fout, "enum %s {\n", name); 383 for (l = def->def.en.vals; l != NULL; l = l->next) { 384 f_print(fout, "\t%s", l->name); 385 if (l->assignment) { 386 f_print(fout, " = %s", l->assignment); 387 last = l->assignment; 388 count = 1; 389 } else { 390 if (last == NULL) { 391 f_print(fout, " = %d", count++); 392 } else { 393 f_print(fout, " = %s + %d", last, count++); 394 } 395 } 396 if (l->next) 397 f_print(fout, ",\n"); 398 else 399 f_print(fout, "\n"); 400 } 401 f_print(fout, "};\n"); 402 f_print(fout, "typedef enum %s %s;\n", name, name); 403 } 404 405 static void 406 ptypedef(definition *def) 407 { 408 const char *name = def->def_name; 409 const char *old = def->def.ty.old_type; 410 char prefix[8]; /* enough to contain "struct ", including NUL */ 411 relation rel = def->def.ty.rel; 412 413 414 if (!streq(name, old)) { 415 if (streq(old, "string")) { 416 old = "char"; 417 rel = REL_POINTER; 418 } else if (streq(old, "opaque")) { 419 old = "char"; 420 } else if (streq(old, "bool")) { 421 old = "bool_t"; 422 } 423 if (undefined2(old, name) && def->def.ty.old_prefix) { 424 s_print(prefix, "%s ", def->def.ty.old_prefix); 425 } else { 426 prefix[0] = 0; 427 } 428 f_print(fout, "typedef "); 429 switch (rel) { 430 case REL_ARRAY: 431 f_print(fout, "struct {\n"); 432 f_print(fout, "\tu_int %s_len;\n", name); 433 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 434 f_print(fout, "} %s", name); 435 break; 436 case REL_POINTER: 437 f_print(fout, "%s%s *%s", prefix, old, name); 438 break; 439 case REL_VECTOR: 440 f_print(fout, "%s%s %s[%s]", prefix, old, name, 441 def->def.ty.array_max); 442 break; 443 case REL_ALIAS: 444 f_print(fout, "%s%s %s", prefix, old, name); 445 break; 446 } 447 f_print(fout, ";\n"); 448 } 449 } 450 451 void 452 pdeclaration(const char *name, declaration *dec, int tab, const char *separator) 453 { 454 char buf[8]; /* enough to hold "struct ", include NUL */ 455 const char *prefix; 456 const char *type; 457 458 if (streq(dec->type, "void")) { 459 return; 460 } 461 tabify(fout, tab); 462 if (streq(dec->type, name) && !dec->prefix) { 463 f_print(fout, "struct "); 464 } 465 if (streq(dec->type, "string")) { 466 f_print(fout, "char *%s", dec->name); 467 } else { 468 prefix = ""; 469 if (streq(dec->type, "bool")) { 470 type = "bool_t"; 471 } else if (streq(dec->type, "opaque")) { 472 type = "char"; 473 } else { 474 if (dec->prefix) { 475 s_print(buf, "%s ", dec->prefix); 476 prefix = buf; 477 } 478 type = dec->type; 479 } 480 switch (dec->rel) { 481 case REL_ALIAS: 482 f_print(fout, "%s%s %s", prefix, type, dec->name); 483 break; 484 case REL_VECTOR: 485 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 486 dec->array_max); 487 break; 488 case REL_POINTER: 489 f_print(fout, "%s%s *%s", prefix, type, dec->name); 490 break; 491 case REL_ARRAY: 492 f_print(fout, "struct {\n"); 493 tabify(fout, tab); 494 f_print(fout, "\tu_int %s_len;\n", dec->name); 495 tabify(fout, tab); 496 f_print(fout, 497 "\t%s%s *%s_val;\n", prefix, type, dec->name); 498 tabify(fout, tab); 499 f_print(fout, "} %s", dec->name); 500 break; 501 } 502 } 503 fputs(separator, fout); 504 } 505 506 static int 507 undefined2(const char *type, const char *stop) 508 { 509 list *l; 510 definition *def; 511 512 for (l = defined; l != NULL; l = l->next) { 513 def = (definition *) l->val; 514 if (def->def_kind != DEF_PROGRAM) { 515 if (streq(def->def_name, stop)) { 516 return (1); 517 } else if (streq(def->def_name, type)) { 518 return (0); 519 } 520 } 521 } 522 return (1); 523 } 524