sunrpc/rpc_hout.c

   1 /* @(#)rpc_hout.c       2.1 88/08/01 4.0 RPCSRC */
   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.
   9  *
  10  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  11  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  12  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  13  *
  14  * Sun RPC is provided with no support and without any obligation on the
  15  * part of Sun Microsystems, Inc. to assist in its use, correction,
  16  * modification or enhancement.
  17  *
  18  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  19  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  20  * OR ANY PART THEREOF.
  21  *
  22  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  23  * or profits or other special, indirect and consequential damages, even if
  24  * Sun has been advised of the possibility of such damages.
  25  *
  26  * Sun Microsystems, Inc.
  27  * 2550 Garcia Avenue
  28  * Mountain View, California  94043
  29  */
  30 #ifndef lint
  31 static char sccsid[] = "@(#)rpc_hout.c 1.6 87/07/28 (C) 1987 SMI";
  32 #endif
  33
  34 /*
  35  * rpc_hout.c, Header file outputter for the RPC protocol compiler
  36  * Copyright (C) 1987, Sun Microsystems, Inc.
  37  */
  38 #include <stdio.h>
  39 #include <ctype.h>
  40 #include "rpc_util.h"
  41 #include "rpc_parse.h"
  42
  43
  44 /*
  45  * Print the C-version of an xdr definition
  46  */
  47 void
  48 print_datadef(def)
  49         definition *def;
  50 {
  51         if (def->def_kind != DEF_CONST) {
  52                 f_print(fout, "\n");
  53         }
  54         switch (def->def_kind) {
  55         case DEF_STRUCT:
  56                 pstructdef(def);
  57                 break;
  58         case DEF_UNION:
  59                 puniondef(def);
  60                 break;
  61         case DEF_ENUM:
  62                 penumdef(def);
  63                 break;
  64         case DEF_TYPEDEF:
  65                 ptypedef(def);
  66                 break;
  67         case DEF_PROGRAM:
  68                 pprogramdef(def);
  69                 break;
  70         case DEF_CONST:
  71                 pconstdef(def);
  72                 break;
  73         }
  74         if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
  75                 f_print(fout, "bool_t xdr_%s();\n", def->def_name);
  76         }
  77         if (def->def_kind != DEF_CONST) {
  78                 f_print(fout, "\n");
  79         }
  80 }
  81
  82 static
  83 pconstdef(def)
  84         definition *def;
  85 {
  86         pdefine(def->def_name, def->def.co);
  87 }
  88
  89 static
  90 pstructdef(def)
  91         definition *def;
  92 {
  93         decl_list *l;
  94         char *name = def->def_name;
  95
  96         f_print(fout, "struct %s {\n", name);
  97         for (l = def->def.st.decls; l != NULL; l = l->next) {
  98                 pdeclaration(name, &l->decl, 1);
  99         }
 100         f_print(fout, "};\n");
 101         f_print(fout, "typedef struct %s %s;\n", name, name);
 102 }
 103
 104 static
 105 puniondef(def)
 106         definition *def;
 107 {
 108         case_list *l;
 109         char *name = def->def_name;
 110         declaration *decl;
 111
 112         f_print(fout, "struct %s {\n", name);
 113         decl = &def->def.un.enum_decl;
 114         if (streq(decl->type, "bool")) {
 115                 f_print(fout, "\tbool_t %s;\n", decl->name);
 116         } else {
 117                 f_print(fout, "\t%s %s;\n", decl->type, decl->name);
 118         }
 119         f_print(fout, "\tunion {\n");
 120         for (l = def->def.un.cases; l != NULL; l = l->next) {
 121                 pdeclaration(name, &l->case_decl, 2);
 122         }
 123         decl = def->def.un.default_decl;
 124         if (decl && !streq(decl->type, "void")) {
 125                 pdeclaration(name, decl, 2);
 126         }
 127         f_print(fout, "\t} %s_u;\n", name);
 128         f_print(fout, "};\n");
 129         f_print(fout, "typedef struct %s %s;\n", name, name);
 130 }
 131
 132
 133
 134 static
 135 pdefine(name, num)
 136         char *name;
 137         char *num;
 138 {
 139         f_print(fout, "#define %s %s\n", name, num);
 140 }
 141
 142 static
 143 puldefine(name, num)
 144         char *name;
 145         char *num;
 146 {
 147         f_print(fout, "#define %s ((u_long)%s)\n", name, num);
 148 }
 149
 150 static
 151 define_printed(stop, start)
 152         proc_list *stop;
 153         version_list *start;
 154 {
 155         version_list *vers;
 156         proc_list *proc;
 157
 158         for (vers = start; vers != NULL; vers = vers->next) {
 159                 for (proc = vers->procs; proc != NULL; proc = proc->next) {
 160                         if (proc == stop) {
 161                                 return (0);
 162                         } else if (streq(proc->proc_name, stop->proc_name)) {
 163                                 return (1);
 164                         }
 165                 }
 166         }
 167         abort();
 168         /* NOTREACHED */
 169 }
 170
 171
 172 static
 173 pprogramdef(def)
 174         definition *def;
 175 {
 176         version_list *vers;
 177         proc_list *proc;
 178
 179         puldefine(def->def_name, def->def.pr.prog_num);
 180         for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
 181                 puldefine(vers->vers_name, vers->vers_num);
 182                 for (proc = vers->procs; proc != NULL; proc = proc->next) {
 183                         if (!define_printed(proc, def->def.pr.versions)) {
 184                                 puldefine(proc->proc_name, proc->proc_num);
 185                         }
 186                         pprocdef(proc, vers);
 187                 }
 188         }
 189 }
 190
 191
 192 pprocdef(proc, vp)
 193         proc_list *proc;
 194         version_list *vp;
 195 {
 196         f_print(fout, "extern ");
 197         if (proc->res_prefix) {
 198                 if (streq(proc->res_prefix, "enum")) {
 199                         f_print(fout, "enum ");
 200                 } else {
 201                         f_print(fout, "struct ");
 202                 }
 203         }
 204         if (streq(proc->res_type, "bool")) {
 205                 f_print(fout, "bool_t *");
 206         } else if (streq(proc->res_type, "string")) {
 207                 f_print(fout, "char **");
 208         } else {
 209                 f_print(fout, "%s *", fixtype(proc->res_type));
 210         }
 211         pvname(proc->proc_name, vp->vers_num);
 212         f_print(fout, "();\n");
 213 }
 214
 215 static
 216 penumdef(def)
 217         definition *def;
 218 {
 219         char *name = def->def_name;
 220         enumval_list *l;
 221         char *last = NULL;
 222         int count = 0;
 223
 224         f_print(fout, "enum %s {\n", name);
 225         for (l = def->def.en.vals; l != NULL; l = l->next) {
 226                 f_print(fout, "\t%s", l->name);
 227                 if (l->assignment) {
 228                         f_print(fout, " = %s", l->assignment);
 229                         last = l->assignment;
 230                         count = 1;
 231                 } else {
 232                         if (last == NULL) {
 233                                 f_print(fout, " = %d", count++);
 234                         } else {
 235                                 f_print(fout, " = %s + %d", last, count++);
 236                         }
 237                 }
 238                 f_print(fout, ",\n");
 239         }
 240         f_print(fout, "};\n");
 241         f_print(fout, "typedef enum %s %s;\n", name, name);
 242 }
 243
 244 static
 245 ptypedef(def)
 246         definition *def;
 247 {
 248         char *name = def->def_name;
 249         char *old = def->def.ty.old_type;
 250         char prefix[8]; /* enough to contain "struct ", including NUL */
 251         relation rel = def->def.ty.rel;
 252
 253
 254         if (!streq(name, old)) {
 255                 if (streq(old, "string")) {
 256                         old = "char";
 257                         rel = REL_POINTER;
 258                 } else if (streq(old, "opaque")) {
 259                         old = "char";
 260                 } else if (streq(old, "bool")) {
 261                         old = "bool_t";
 262                 }
 263                 if (undefined2(old, name) && def->def.ty.old_prefix) {
 264                         s_print(prefix, "%s ", def->def.ty.old_prefix);
 265                 } else {
 266                         prefix[0] = 0;
 267                 }
 268                 f_print(fout, "typedef ");
 269                 switch (rel) {
 270                 case REL_ARRAY:
 271                         f_print(fout, "struct {\n");
 272                         f_print(fout, "\tu_int %s_len;\n", name);
 273                         f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
 274                         f_print(fout, "} %s", name);
 275                         break;
 276                 case REL_POINTER:
 277                         f_print(fout, "%s%s *%s", prefix, old, name);
 278                         break;
 279                 case REL_VECTOR:
 280                         f_print(fout, "%s%s %s[%s]", prefix, old, name,
 281                                 def->def.ty.array_max);
 282                         break;
 283                 case REL_ALIAS:
 284                         f_print(fout, "%s%s %s", prefix, old, name);
 285                         break;
 286                 }
 287                 f_print(fout, ";\n");
 288         }
 289 }
 290
 291
 292 static
 293 pdeclaration(name, dec, tab)
 294         char *name;
 295         declaration *dec;
 296         int tab;
 297 {
 298         char buf[8];    /* enough to hold "struct ", include NUL */
 299         char *prefix;
 300         char *type;
 301
 302         if (streq(dec->type, "void")) {
 303                 return;
 304         }
 305         tabify(fout, tab);
 306         if (streq(dec->type, name) && !dec->prefix) {
 307                 f_print(fout, "struct ");
 308         }
 309         if (streq(dec->type, "string")) {
 310                 f_print(fout, "char *%s", dec->name);
 311         } else {
 312                 prefix = "";
 313                 if (streq(dec->type, "bool")) {
 314                         type = "bool_t";
 315                 } else if (streq(dec->type, "opaque")) {
 316                         type = "char";
 317                 } else {
 318                         if (dec->prefix) {
 319                                 s_print(buf, "%s ", dec->prefix);
 320                                 prefix = buf;
 321                         }
 322                         type = dec->type;
 323                 }
 324                 switch (dec->rel) {
 325                 case REL_ALIAS:
 326                         f_print(fout, "%s%s %s", prefix, type, dec->name);
 327                         break;
 328                 case REL_VECTOR:
 329                         f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
 330                                 dec->array_max);
 331                         break;
 332                 case REL_POINTER:
 333                         f_print(fout, "%s%s *%s", prefix, type, dec->name);
 334                         break;
 335                 case REL_ARRAY:
 336                         f_print(fout, "struct {\n");
 337                         tabify(fout, tab);
 338                         f_print(fout, "\tu_int %s_len;\n", dec->name);
 339                         tabify(fout, tab);
 340                         f_print(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name);
 341                         tabify(fout, tab);
 342                         f_print(fout, "} %s", dec->name);
 343                         break;
 344                 }
 345         }
 346         f_print(fout, ";\n");
 347 }
 348
 349
 350
 351 static
 352 undefined2(type, stop)
 353         char *type;
 354         char *stop;
 355 {
 356         list *l;
 357         definition *def;
 358
 359         for (l = defined; l != NULL; l = l->next) {
 360                 def = (definition *) l->val;
 361                 if (def->def_kind != DEF_PROGRAM) {
 362                         if (streq(def->def_name, stop)) {
 363                                 return (1);
 364                         } else if (streq(def->def_name, type)) {
 365                                 return (0);
 366                         }
 367                 }
 368         }
 369         return (1);
 370 }