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 * @(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI 30 * $DragonFly: src/usr.bin/rpcgen/rpc_hout.c,v 1.5 2004/06/19 16:40:36 joerg Exp $ 31 */ 32 33 #ident "@(#)rpc_hout.c 1.16 94/04/25 SMI" 34 35 /* 36 * rpc_hout.c, Header file outputter for the RPC protocol compiler 37 * Copyright (C) 1987, Sun Microsystems, Inc. 38 */ 39 #include <stdio.h> 40 #include <ctype.h> 41 #include "rpc_parse.h" 42 #include "rpc_util.h" 43 44 void storexdrfuncdecl(char *, int); 45 static void pconstdef(definition *); 46 static void pstructdef(definition *); 47 static void puniondef(definition *); 48 static void pprogramdef(definition *); 49 static void pstructdef(definition *); 50 static void penumdef(definition *); 51 static void ptypedef(definition *); 52 static void pdefine(char *, char *); 53 static int undefined2(char *, char *); 54 static void parglist(proc_list *, char *); 55 static void pprocdef(proc_list *, version_list *, char *, int, int); 56 void pdeclaration(char *, declaration *, int, char *); 57 58 static char RESULT[] = "clnt_res"; 59 60 /* 61 * Print the C-version of an xdr definition 62 */ 63 void 64 print_datadef(definition *def) 65 { 66 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 67 return; 68 69 if (def->def_kind != DEF_CONST) 70 f_print(fout, "\n"); 71 72 switch (def->def_kind) { 73 case DEF_STRUCT: 74 pstructdef(def); 75 break; 76 case DEF_UNION: 77 puniondef(def); 78 break; 79 case DEF_ENUM: 80 penumdef(def); 81 break; 82 case DEF_TYPEDEF: 83 ptypedef(def); 84 break; 85 case DEF_PROGRAM: 86 pprogramdef(def); 87 break; 88 case DEF_CONST: 89 pconstdef(def); 90 break; 91 } 92 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 93 if (def->def_kind != DEF_TYPEDEF || 94 !isvectordef(def->def.ty.old_type, def->def.ty.rel)) 95 storexdrfuncdecl(def->def_name, 1); 96 else 97 storexdrfuncdecl(def->def_name, 0); 98 } 99 } 100 101 102 void 103 print_funcdef(definition *def) 104 { 105 switch (def->def_kind) { 106 case DEF_PROGRAM: 107 f_print(fout, "\n"); 108 pprogramdef(def); 109 break; 110 default: 111 break; 112 } 113 } 114 115 /* store away enough information to allow the XDR functions to be spat 116 out at the end of the file */ 117 118 void 119 storexdrfuncdecl(char *name, int pointerp) 120 { 121 xdrfunc * xdrptr; 122 123 xdrptr = malloc(sizeof(struct xdrfunc)); 124 125 xdrptr->name = name; 126 xdrptr->pointerp = pointerp; 127 xdrptr->next = NULL; 128 129 if (xdrfunc_tail == NULL) 130 xdrfunc_head = xdrptr; 131 else 132 xdrfunc_tail->next = xdrptr; 133 xdrfunc_tail = xdrptr; 134 135 } 136 137 void 138 print_xdr_func_def(char *name, int pointerp, int i) 139 { 140 if (i == 2) 141 f_print(fout, "extern bool_t xdr_%s();\n", name); 142 else 143 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 144 name, pointerp ? "*" : ""); 145 } 146 147 148 static void 149 pconstdef(definition *def) 150 { 151 pdefine(def->def_name, def->def.co); 152 } 153 154 /* print out the definitions for the arguments of functions in the 155 header file 156 */ 157 static void 158 pargdef(definition *def) 159 { 160 decl_list *l; 161 version_list *vers; 162 char *name; 163 proc_list *plist; 164 165 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 166 for (plist = vers->procs; plist != NULL; plist = plist->next) { 167 if (!newstyle || plist->arg_num < 2) 168 continue; /* old style or single args */ 169 170 name = plist->args.argname; 171 f_print(fout, "struct %s {\n", name); 172 for (l = plist->args.decls; l != NULL; l = l->next) 173 pdeclaration(name, &l->decl, 1, ";\n"); 174 f_print(fout, "};\n"); 175 f_print(fout, "typedef struct %s %s;\n", name, name); 176 storexdrfuncdecl(name, 1); 177 f_print(fout, "\n"); 178 } 179 } 180 } 181 182 183 static void 184 pstructdef(definition *def) 185 { 186 decl_list *l; 187 char *name = def->def_name; 188 189 f_print(fout, "struct %s {\n", name); 190 for (l = def->def.st.decls; l != NULL; l = l->next) 191 pdeclaration(name, &l->decl, 1, ";\n"); 192 193 f_print(fout, "};\n"); 194 f_print(fout, "typedef struct %s %s;\n", name, name); 195 } 196 197 static void 198 puniondef(definition *def) 199 { 200 case_list *l; 201 char *name = def->def_name; 202 declaration *decl; 203 204 f_print(fout, "struct %s {\n", name); 205 decl = &def->def.un.enum_decl; 206 if (streq(decl->type, "bool")) 207 f_print(fout, "\tbool_t %s;\n", decl->name); 208 else 209 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 210 211 f_print(fout, "\tunion {\n"); 212 for (l = def->def.un.cases; l != NULL; l = l->next) { 213 if (l->contflag == 0) 214 pdeclaration(name, &l->case_decl, 2, ";\n"); 215 } 216 decl = def->def.un.default_decl; 217 if (decl && !streq(decl->type, "void")) { 218 pdeclaration(name, decl, 2, ";\n"); 219 } 220 f_print(fout, "\t} %s_u;\n", name); 221 f_print(fout, "};\n"); 222 f_print(fout, "typedef struct %s %s;\n", name, name); 223 } 224 225 static void 226 pdefine(char *name, char *num) 227 { 228 f_print(fout, "#define\t%s %s\n", name, num); 229 } 230 231 static void 232 puldefine(char *name, char *num) 233 { 234 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 235 } 236 237 static int 238 define_printed(proc_list *stop, version_list *start) 239 { 240 version_list *vers; 241 proc_list *proc; 242 243 for (vers = start; vers != NULL; vers = vers->next) { 244 for (proc = vers->procs; proc != NULL; proc = proc->next) { 245 if (proc == stop) 246 return(0); 247 else if (streq(proc->proc_name, stop->proc_name)) 248 return(1); 249 } 250 } 251 abort(); 252 /* NOTREACHED */ 253 } 254 255 static void 256 pfreeprocdef(char * name, char *vers, int mode) 257 { 258 f_print(fout, "extern int "); 259 pvname(name, vers); 260 if (mode == 1) 261 f_print(fout,"_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 262 else 263 f_print(fout,"_freeresult();\n"); 264 } 265 266 static void 267 pprogramdef(definition *def) 268 { 269 version_list *vers; 270 proc_list *proc; 271 int i; 272 char *ext; 273 274 pargdef(def); 275 276 puldefine(def->def_name, def->def.pr.prog_num); 277 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 278 if (tblflag) { 279 f_print(fout, 280 "extern struct rpcgen_table %s_%s_table[];\n", 281 locase(def->def_name), vers->vers_num); 282 f_print(fout, "extern %s_%s_nproc;\n", 283 locase(def->def_name), vers->vers_num); 284 } 285 puldefine(vers->vers_name, vers->vers_num); 286 287 /* 288 * Print out 2 definitions, one for ANSI-C, another for 289 * old K & R C 290 */ 291 292 if(!Cflag){ 293 ext = "extern "; 294 for (proc = vers->procs; proc != NULL; 295 proc = proc->next) { 296 if (!define_printed(proc, 297 def->def.pr.versions)) { 298 puldefine(proc->proc_name, 299 proc->proc_num); 300 } 301 f_print(fout, "%s", ext); 302 pprocdef(proc, vers, NULL, 0, 2); 303 304 if (mtflag) { 305 f_print(fout, "%s", ext); 306 pprocdef(proc, vers, NULL, 1, 2); 307 } 308 } 309 pfreeprocdef(def->def_name, vers->vers_num, 2); 310 } else { 311 for (i = 1; i < 3; i++) { 312 if (i == 1) { 313 f_print(fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n"); 314 ext = "extern "; 315 } else { 316 f_print(fout, "\n#else /* K&R C */\n"); 317 ext = "extern "; 318 } 319 320 for (proc = vers->procs; proc != NULL; 321 proc = proc->next) { 322 if (!define_printed(proc, 323 def->def.pr.versions)) { 324 puldefine(proc->proc_name, 325 proc->proc_num); 326 } 327 f_print(fout, "%s", ext); 328 pprocdef(proc, vers, "CLIENT *", 0, i); 329 f_print(fout, "%s", ext); 330 pprocdef(proc, vers, "struct svc_req *", 1, i); 331 } 332 pfreeprocdef(def->def_name, vers->vers_num, i); 333 } 334 f_print(fout, "#endif /* K&R C */\n"); 335 } 336 } 337 } 338 339 static void 340 pprocdef(proc_list *proc, version_list *vp, char* addargtype, int server_p, 341 int mode) 342 { 343 if (mtflag) { 344 /* Print MT style stubs */ 345 if (server_p) 346 f_print(fout, "bool_t "); 347 else 348 f_print(fout, "enum clnt_stat "); 349 } else { 350 ptype(proc->res_prefix, proc->res_type, 1); 351 f_print(fout, "* "); 352 } 353 if (server_p) 354 pvname_svc(proc->proc_name, vp->vers_num); 355 else 356 pvname(proc->proc_name, vp->vers_num); 357 358 /* 359 * mode 1 = ANSI-C, mode 2 = K&R C 360 */ 361 if ( mode == 1) 362 parglist(proc, addargtype); 363 else 364 f_print(fout, "();\n"); 365 } 366 367 368 369 /* print out argument list of procedure */ 370 static void 371 parglist(proc_list *proc, char* addargtype) 372 { 373 decl_list *dl; 374 375 f_print(fout, "("); 376 if (proc->arg_num < 2 && newstyle && 377 streq(proc->args.decls->decl.type, "void")) { 378 /* 0 argument in new style: do nothing*/ 379 } 380 else { 381 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 382 ptype(dl->decl.prefix, dl->decl.type, 1); 383 if (!newstyle) 384 f_print(fout, "*"); 385 /* old style passes by reference */ 386 f_print(fout, ", "); 387 } 388 } 389 390 if (mtflag) { 391 ptype(proc->res_prefix, proc->res_type, 1); 392 f_print(fout, "*, "); 393 } 394 395 f_print(fout, "%s);\n", addargtype); 396 } 397 398 static void 399 penumdef(definition *def) 400 { 401 char *name = def->def_name; 402 enumval_list *l; 403 char *last = NULL; 404 int count = 0; 405 406 f_print(fout, "enum %s {\n", name); 407 for (l = def->def.en.vals; l != NULL; l = l->next) { 408 f_print(fout, "\t%s", l->name); 409 if (l->assignment) { 410 f_print(fout, " = %s", l->assignment); 411 last = l->assignment; 412 count = 1; 413 } else { 414 if (last == NULL) 415 f_print(fout, " = %d", count++); 416 else 417 f_print(fout, " = %s + %d", last, count++); 418 } 419 if (l->next) 420 f_print(fout, ",\n"); 421 else 422 f_print(fout, "\n"); 423 } 424 f_print(fout, "};\n"); 425 f_print(fout, "typedef enum %s %s;\n", name, name); 426 } 427 428 static void 429 ptypedef(definition *def) 430 { 431 char *name = def->def_name; 432 char *old = def->def.ty.old_type; 433 char prefix[8]; /* enough to contain "struct ", including NUL */ 434 relation rel = def->def.ty.rel; 435 436 if (!streq(name, old)) { 437 if (streq(old, "string")) { 438 old = "char"; 439 rel = REL_POINTER; 440 } else if (streq(old, "opaque")) { 441 old = "char"; 442 } else if (streq(old, "bool")) { 443 old = "bool_t"; 444 } 445 if (undefined2(old, name) && def->def.ty.old_prefix) 446 s_print(prefix, "%s ", def->def.ty.old_prefix); 447 else 448 prefix[0] = 0; 449 f_print(fout, "typedef "); 450 switch (rel) { 451 case REL_ARRAY: 452 f_print(fout, "struct {\n"); 453 f_print(fout, "\tu_int %s_len;\n", name); 454 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 455 f_print(fout, "} %s", name); 456 break; 457 case REL_POINTER: 458 f_print(fout, "%s%s *%s", prefix, old, name); 459 break; 460 case REL_VECTOR: 461 f_print(fout, "%s%s %s[%s]", prefix, old, name, 462 def->def.ty.array_max); 463 break; 464 case REL_ALIAS: 465 f_print(fout, "%s%s %s", prefix, old, name); 466 break; 467 } 468 f_print(fout, ";\n"); 469 } 470 } 471 472 void 473 pdeclaration(char *name, declaration *dec, int tab, char *separator) 474 { 475 char buf[8]; /* enough to hold "struct ", include NUL */ 476 char *prefix; 477 char *type; 478 479 if (streq(dec->type, "void")) 480 return; 481 482 tabify(fout, tab); 483 if (streq(dec->type, name) && !dec->prefix) 484 f_print(fout, "struct "); 485 486 if (streq(dec->type, "string")) { 487 f_print(fout, "char *%s", dec->name); 488 } else { 489 prefix = ""; 490 if (streq(dec->type, "bool")) { 491 type = "bool_t"; 492 } else if (streq(dec->type, "opaque")) { 493 type = "char"; 494 } else { 495 if (dec->prefix) { 496 s_print(buf, "%s ", dec->prefix); 497 prefix = buf; 498 } 499 type = dec->type; 500 } 501 switch (dec->rel) { 502 case REL_ALIAS: 503 f_print(fout, "%s%s %s", prefix, type, dec->name); 504 break; 505 case REL_VECTOR: 506 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 507 dec->array_max); 508 break; 509 case REL_POINTER: 510 f_print(fout, "%s%s *%s", prefix, type, dec->name); 511 break; 512 case REL_ARRAY: 513 f_print(fout, "struct {\n"); 514 tabify(fout, tab); 515 f_print(fout, "\tu_int %s_len;\n", dec->name); 516 tabify(fout, tab); 517 f_print(fout, 518 "\t%s%s *%s_val;\n", prefix, type, dec->name); 519 tabify(fout, tab); 520 f_print(fout, "} %s", dec->name); 521 break; 522 } 523 } 524 f_print(fout, separator); 525 } 526 527 static int 528 undefined2(char *type, char *stop) 529 { 530 list *l; 531 definition *def; 532 533 for (l = defined; l != NULL; l = l->next) { 534 def = (definition *) l->val; 535 if (def->def_kind != DEF_PROGRAM) { 536 if (streq(def->def_name, stop)) 537 return(1); 538 else if (streq(def->def_name, type)) 539 return(0); 540 } 541 } 542 return(1); 543 } 544