rpc_hout.c revision 149709
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" 33static 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: head/usr.bin/rpcgen/rpc_hout.c 149709 2005-09-02 10:23:26Z stefanf $"); 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 50void storexdrfuncdecl( char *, int ); 51static void pconstdef( definition * ); 52static void pstructdef( definition * ); 53static void puniondef( definition * ); 54static void pprogramdef( definition *, int ); 55static void pstructdef( definition * ); 56static void penumdef( definition * ); 57static void ptypedef( definition * ); 58static void pdefine( char *, char * ); 59static int undefined2( char *, char * ); 60static void parglist( proc_list *, char * ); 61static void pprocdef( proc_list *, version_list *, char *, int ); 62void pdeclaration( char *, declaration *, int, char * ); 63 64/* 65 * Print the C-version of an xdr definition 66 */ 67void 68print_datadef(definition *def, int headeronly) 69{ 70 71 if (def->def_kind == DEF_PROGRAM) /* handle data only */ 72 return; 73 74 if (def->def_kind != DEF_CONST) { 75 f_print(fout, "\n"); 76 } 77 switch (def->def_kind) { 78 case DEF_STRUCT: 79 pstructdef(def); 80 break; 81 case DEF_UNION: 82 puniondef(def); 83 break; 84 case DEF_ENUM: 85 penumdef(def); 86 break; 87 case DEF_TYPEDEF: 88 ptypedef(def); 89 break; 90 case DEF_PROGRAM: 91 pprogramdef(def, headeronly); 92 break; 93 case DEF_CONST: 94 pconstdef(def); 95 break; 96 } 97 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 98 storexdrfuncdecl(def->def_name, 99 def->def_kind != DEF_TYPEDEF || 100 !isvectordef(def->def.ty.old_type, 101 def->def.ty.rel)); 102 } 103} 104 105 106void 107print_funcdef(definition *def, int headeronly) 108{ 109 switch (def->def_kind) { 110 case DEF_PROGRAM: 111 f_print(fout, "\n"); 112 pprogramdef(def, headeronly); 113 break; 114 default: 115 break; 116 } 117} 118 119/* store away enough information to allow the XDR functions to be spat 120 out at the end of the file */ 121 122void 123storexdrfuncdecl(name, pointerp) 124char *name; 125int pointerp; 126{ 127 xdrfunc * xdrptr; 128 129 xdrptr = XALLOC(struct xdrfunc); 130 131 xdrptr->name = name; 132 xdrptr->pointerp = pointerp; 133 xdrptr->next = NULL; 134 135 if (xdrfunc_tail == NULL){ 136 xdrfunc_head = xdrptr; 137 xdrfunc_tail = xdrptr; 138 } else { 139 xdrfunc_tail->next = xdrptr; 140 xdrfunc_tail = xdrptr; 141 } 142 143 144} 145 146void 147print_xdr_func_def(char *name, int pointerp) 148{ 149 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name, 150 name, pointerp ? "*" : ""); 151} 152 153 154static void 155pconstdef(def) 156 definition *def; 157{ 158 pdefine(def->def_name, def->def.co); 159} 160 161/* print out the definitions for the arguments of functions in the 162 header file 163*/ 164static void 165pargdef(def) 166 definition *def; 167{ 168 decl_list *l; 169 version_list *vers; 170 char *name; 171 proc_list *plist; 172 173 174 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 175 for (plist = vers->procs; plist != NULL; 176 plist = plist->next) { 177 178 if (!newstyle || plist->arg_num < 2) { 179 continue; /* old style or single args */ 180 } 181 name = plist->args.argname; 182 f_print(fout, "struct %s {\n", name); 183 for (l = plist->args.decls; 184 l != NULL; l = l->next) { 185 pdeclaration(name, &l->decl, 1, 186 ";\n"); 187 } 188 f_print(fout, "};\n"); 189 f_print(fout, "typedef struct %s %s;\n", 190 name, name); 191 storexdrfuncdecl(name, 1); 192 f_print(fout, "\n"); 193 } 194 } 195} 196 197 198static void 199pstructdef(def) 200 definition *def; 201{ 202 decl_list *l; 203 char *name = def->def_name; 204 205 f_print(fout, "struct %s {\n", name); 206 for (l = def->def.st.decls; l != NULL; l = l->next) { 207 pdeclaration(name, &l->decl, 1, ";\n"); 208 } 209 f_print(fout, "};\n"); 210 f_print(fout, "typedef struct %s %s;\n", name, name); 211} 212 213static void 214puniondef(def) 215 definition *def; 216{ 217 case_list *l; 218 char *name = def->def_name; 219 declaration *decl; 220 221 f_print(fout, "struct %s {\n", name); 222 decl = &def->def.un.enum_decl; 223 if (streq(decl->type, "bool")) { 224 f_print(fout, "\tbool_t %s;\n", decl->name); 225 } else { 226 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 227 } 228 f_print(fout, "\tunion {\n"); 229 for (l = def->def.un.cases; l != NULL; l = l->next) { 230 if (l->contflag == 0) 231 pdeclaration(name, &l->case_decl, 2, ";\n"); 232 } 233 decl = def->def.un.default_decl; 234 if (decl && !streq(decl->type, "void")) { 235 pdeclaration(name, decl, 2, ";\n"); 236 } 237 f_print(fout, "\t} %s_u;\n", name); 238 f_print(fout, "};\n"); 239 f_print(fout, "typedef struct %s %s;\n", name, name); 240} 241 242static void 243pdefine(name, num) 244 char *name; 245 char *num; 246{ 247 f_print(fout, "#define\t%s %s\n", name, num); 248} 249 250static void 251puldefine(name, num) 252 char *name; 253 char *num; 254{ 255 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num); 256} 257 258static int 259define_printed(stop, start) 260 proc_list *stop; 261 version_list *start; 262{ 263 version_list *vers; 264 proc_list *proc; 265 266 for (vers = start; vers != NULL; vers = vers->next) { 267 for (proc = vers->procs; proc != NULL; proc = proc->next) { 268 if (proc == stop) { 269 return (0); 270 } else if (streq(proc->proc_name, stop->proc_name)) { 271 return (1); 272 } 273 } 274 } 275 abort(); 276 /* NOTREACHED */ 277} 278 279static void 280pfreeprocdef(char * name, char *vers) 281{ 282 f_print(fout, "extern int "); 283 pvname(name, vers); 284 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n"); 285} 286 287static void 288pdispatch(char * name, char *vers) 289{ 290 291 f_print(fout, "void "); 292 pvname(name, vers); 293 f_print(fout, "(struct svc_req *rqstp, register SVCXPRT *transp);\n"); 294} 295 296static void 297pprogramdef(definition *def, int headeronly) 298{ 299 version_list *vers; 300 proc_list *proc; 301 char *ext; 302 303 pargdef(def); 304 305 puldefine(def->def_name, def->def.pr.prog_num); 306 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 307 if (tblflag) { 308 f_print(fout, 309 "extern struct rpcgen_table %s_%s_table[];\n", 310 locase(def->def_name), vers->vers_num); 311 f_print(fout, 312 "extern %s_%s_nproc;\n", 313 locase(def->def_name), vers->vers_num); 314 } 315 puldefine(vers->vers_name, vers->vers_num); 316 317 f_print(fout, "\n"); 318 ext = "extern "; 319 if (headeronly) { 320 f_print(fout, "%s", ext); 321 pdispatch(def->def_name, vers->vers_num); 322 } 323 for (proc = vers->procs; proc != NULL; proc = proc->next) { 324 if (!define_printed(proc, def->def.pr.versions)) { 325 puldefine(proc->proc_name, proc->proc_num); 326 } 327 f_print(fout, "%s", ext); 328 pprocdef(proc, vers, "CLIENT *", 0); 329 f_print(fout, "%s", ext); 330 pprocdef(proc, vers, "struct svc_req *", 1); 331 } 332 pfreeprocdef(def->def_name, vers->vers_num); 333 } 334} 335 336static void 337pprocdef(proc_list *proc, version_list *vp, char *addargtype, int server_p) 338{ 339 if (mtflag) {/* Print MT style stubs */ 340 if (server_p) 341 f_print(fout, "bool_t "); 342 else 343 f_print(fout, "enum clnt_stat "); 344 } else { 345 ptype(proc->res_prefix, proc->res_type, 1); 346 f_print(fout, "* "); 347 } 348 if (server_p) 349 pvname_svc(proc->proc_name, vp->vers_num); 350 else 351 pvname(proc->proc_name, vp->vers_num); 352 353 parglist(proc, addargtype); 354} 355 356 357 358/* print out argument list of procedure */ 359static void 360parglist(proc, addargtype) 361 proc_list *proc; 362 char* addargtype; 363{ 364 decl_list *dl; 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 } 371 else { 372 for (dl = proc->args.decls; dl != NULL; dl = dl->next) { 373 ptype(dl->decl.prefix, dl->decl.type, 1); 374 if (!newstyle) 375 f_print(fout, "*"); 376 /* old style passes by reference */ 377 f_print(fout, ", "); 378 } 379 } 380 381 if (mtflag) { 382 ptype(proc->res_prefix, proc->res_type, 1); 383 f_print(fout, "*, "); 384 } 385 386 f_print(fout, "%s);\n", addargtype); 387 388} 389 390static void 391penumdef(def) 392 definition *def; 393{ 394 char *name = def->def_name; 395 enumval_list *l; 396 char *last = NULL; 397 int count = 0; 398 399 f_print(fout, "enum %s {\n", name); 400 for (l = def->def.en.vals; l != NULL; l = l->next) { 401 f_print(fout, "\t%s", l->name); 402 if (l->assignment) { 403 f_print(fout, " = %s", l->assignment); 404 last = l->assignment; 405 count = 1; 406 } else { 407 if (last == NULL) { 408 f_print(fout, " = %d", count++); 409 } else { 410 f_print(fout, " = %s + %d", last, count++); 411 } 412 } 413 if (l->next) 414 f_print(fout, ",\n"); 415 else 416 f_print(fout, "\n"); 417 } 418 f_print(fout, "};\n"); 419 f_print(fout, "typedef enum %s %s;\n", name, name); 420} 421 422static void 423ptypedef(def) 424 definition *def; 425{ 426 char *name = def->def_name; 427 char *old = def->def.ty.old_type; 428 char prefix[8]; /* enough to contain "struct ", including NUL */ 429 relation rel = def->def.ty.rel; 430 431 432 if (!streq(name, old)) { 433 if (streq(old, "string")) { 434 old = "char"; 435 rel = REL_POINTER; 436 } else if (streq(old, "opaque")) { 437 old = "char"; 438 } else if (streq(old, "bool")) { 439 old = "bool_t"; 440 } 441 if (undefined2(old, name) && def->def.ty.old_prefix) { 442 s_print(prefix, "%s ", def->def.ty.old_prefix); 443 } else { 444 prefix[0] = 0; 445 } 446 f_print(fout, "typedef "); 447 switch (rel) { 448 case REL_ARRAY: 449 f_print(fout, "struct {\n"); 450 f_print(fout, "\tu_int %s_len;\n", name); 451 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 452 f_print(fout, "} %s", name); 453 break; 454 case REL_POINTER: 455 f_print(fout, "%s%s *%s", prefix, old, name); 456 break; 457 case REL_VECTOR: 458 f_print(fout, "%s%s %s[%s]", prefix, old, name, 459 def->def.ty.array_max); 460 break; 461 case REL_ALIAS: 462 f_print(fout, "%s%s %s", prefix, old, name); 463 break; 464 } 465 f_print(fout, ";\n"); 466 } 467} 468 469void 470pdeclaration(name, dec, tab, separator) 471 char *name; 472 declaration *dec; 473 int tab; 474 char *separator; 475{ 476 char buf[8]; /* enough to hold "struct ", include NUL */ 477 char *prefix; 478 char *type; 479 480 if (streq(dec->type, "void")) { 481 return; 482 } 483 tabify(fout, tab); 484 if (streq(dec->type, name) && !dec->prefix) { 485 f_print(fout, "struct "); 486 } 487 if (streq(dec->type, "string")) { 488 f_print(fout, "char *%s", dec->name); 489 } else { 490 prefix = ""; 491 if (streq(dec->type, "bool")) { 492 type = "bool_t"; 493 } else if (streq(dec->type, "opaque")) { 494 type = "char"; 495 } else { 496 if (dec->prefix) { 497 s_print(buf, "%s ", dec->prefix); 498 prefix = buf; 499 } 500 type = dec->type; 501 } 502 switch (dec->rel) { 503 case REL_ALIAS: 504 f_print(fout, "%s%s %s", prefix, type, dec->name); 505 break; 506 case REL_VECTOR: 507 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 508 dec->array_max); 509 break; 510 case REL_POINTER: 511 f_print(fout, "%s%s *%s", prefix, type, dec->name); 512 break; 513 case REL_ARRAY: 514 f_print(fout, "struct {\n"); 515 tabify(fout, tab); 516 f_print(fout, "\tu_int %s_len;\n", dec->name); 517 tabify(fout, tab); 518 f_print(fout, 519 "\t%s%s *%s_val;\n", prefix, type, dec->name); 520 tabify(fout, tab); 521 f_print(fout, "} %s", dec->name); 522 break; 523 } 524 } 525 f_print(fout, separator); 526} 527 528static int 529undefined2(type, stop) 530 char *type; 531 char *stop; 532{ 533 list *l; 534 definition *def; 535 536 for (l = defined; l != NULL; l = l->next) { 537 def = (definition *) l->val; 538 if (def->def_kind != DEF_PROGRAM) { 539 if (streq(def->def_name, stop)) { 540 return (1); 541 } else if (streq(def->def_name, type)) { 542 return (0); 543 } 544 } 545 } 546 return (1); 547} 548