src/rxgen/rpc_hout.c

   1 /* @(#)rpc_hout.c       1.2 87/11/30 3.9 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
  31 /*
  32  * rpc_hout.c, Header file outputter for the RPC protocol compiler
  33  * Copyright (C) 1987, Sun Microsystems, Inc.
  34  */
  35 #include <afs/param.h>
  36 #include <afsconfig.h>
  37
  38 RCSID("$Header$");
  39
  40 #include <stdio.h>
  41 #include <ctype.h>
  42 #include "rpc_util.h"
  43 #include "rpc_parse.h"
  44
  45 static pconstdef();
  46 static pstructdef();
  47 static puniondef();
  48 static pprogramdef();
  49 static penumdef();
  50 static ptypedef();
  51 static pdeclaration();
  52 static undefined2();
  53
  54
  55 /*
  56  * Print the C-version of an xdr definition
  57  */
  58 void
  59 print_datadef(def)
  60         definition *def;
  61 {
  62         extern int IsRxgenDefinition();
  63
  64         if (Sflag) scan_print = 0;
  65         if ((def->def_kind != DEF_CONST) && (!IsRxgenDefinition(def))) {
  66                 f_print(fout, "\n");
  67         }
  68         switch (def->def_kind) {
  69         case DEF_CUSTOMIZED:
  70         case DEF_STRUCT:
  71                 pstructdef(def);
  72                 break;
  73         case DEF_UNION:
  74                 puniondef(def);
  75                 break;
  76         case DEF_ENUM:
  77                 penumdef(def);
  78                 break;
  79         case DEF_TYPEDEF:
  80                 ptypedef(def);
  81                 break;
  82         case DEF_PROGRAM:
  83                 pprogramdef(def);
  84                 break;
  85         case DEF_CONST:
  86                 pconstdef(def);
  87                 break;
  88         }
  89         if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST && (!IsRxgenDefinition(def))) {
  90                 f_print(fout, "bool_t xdr_%s();\n", def->def_name);
  91         }
  92         if (def->def_kind != DEF_CONST && (!IsRxgenDefinition(def))) {
  93                 f_print(fout, "\n");
  94         }
  95         if (Sflag) scan_print = 1;
  96 }
  97
  98 static
  99 pconstdef(def)
 100         definition *def;
 101 {
 102         pdefine(def->def_name, def->def.co);
 103 }
 104
 105 static
 106 pstructdef(def)
 107         definition *def;
 108 {
 109         decl_list *l;
 110         char *name = def->def_name;
 111
 112         f_print(fout, "struct %s {\n", name);
 113         for (l = def->def.st.decls; l != NULL; l = l->next) {
 114                 pdeclaration(name, &l->decl, 1);
 115         }
 116         f_print(fout, "};\n");
 117         f_print(fout, "typedef struct %s %s;\n", name, name);
 118 }
 119
 120 static
 121 puniondef(def)
 122         definition *def;
 123 {
 124         case_list *l;
 125         char *name = def->def_name;
 126         declaration *decl;
 127
 128         f_print(fout, "struct %s {\n", name);
 129         decl = &def->def.un.enum_decl;
 130         if (streq(decl->type, "bool")) {
 131                 f_print(fout, "\tbool_t %s;\n", decl->name);
 132         } else {
 133                 f_print(fout, "\t%s %s;\n", decl->type, decl->name);
 134         }
 135         f_print(fout, "\tunion {\n");
 136         for (l = def->def.un.cases; l != NULL; l = l->next) {
 137                 pdeclaration(name, &l->case_decl, 2);
 138         }
 139         decl = def->def.un.default_decl;
 140         if (decl && !streq(decl->type, "void")) {
 141                 pdeclaration(name, decl, 2);
 142         }
 143         f_print(fout, "\t} %s_u;\n", name);
 144         f_print(fout, "};\n");
 145         f_print(fout, "typedef struct %s %s;\n", name, name);
 146         STOREVAL(&uniondef_defined, def);
 147 }
 148
 149
 150 pdefine(name, num)
 151         char *name;
 152         char *num;
 153 {
 154         f_print(fout, "#define %s %s\n", name, num);
 155 }
 156
 157 static
 158 puldefine(name, num)
 159         char *name;
 160         char *num;
 161 {
 162         f_print(fout, "#define %s ((afs_uint32)%s)\n", name, num);
 163 }
 164
 165 static
 166 define_printed(stop, start)
 167         proc_list *stop;
 168         version_list *start;
 169 {
 170         version_list *vers;
 171         proc_list *proc;
 172
 173         for (vers = start; vers != NULL; vers = vers->next) {
 174                 for (proc = vers->procs; proc != NULL; proc = proc->next) {
 175                         if (proc == stop) {
 176                                 return (0);
 177                         } else if (streq(proc->proc_name, stop->proc_name)) {
 178                                 return (1);
 179                         }
 180                 }
 181         }
 182         abort();
 183         /* NOTREACHED */
 184 }
 185
 186
 187 static
 188 pprogramdef(def)
 189         definition *def;
 190 {
 191         version_list *vers;
 192         proc_list *proc;
 193
 194         puldefine(def->def_name, def->def.pr.prog_num);
 195         for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
 196                 puldefine(vers->vers_name, vers->vers_num);
 197                 for (proc = vers->procs; proc != NULL; proc = proc->next) {
 198                         if (!define_printed(proc, def->def.pr.versions)) {
 199                                 puldefine(proc->proc_name, proc->proc_num);
 200                         }
 201                         pprocdef(proc, vers);
 202                 }
 203         }
 204 }
 205
 206
 207 pprocdef(proc, vp)
 208         proc_list *proc;
 209         version_list *vp;
 210 {
 211         f_print(fout, "extern ");
 212         if (proc->res_prefix) {
 213                 if (streq(proc->res_prefix, "enum")) {
 214                         f_print(fout, "enum ");
 215                 } else {
 216                         f_print(fout, "struct ");
 217                 }
 218         }
 219         if (streq(proc->res_type, "bool")) {
 220                 f_print(fout, "bool_t *");
 221         } else if (streq(proc->res_type, "string")) {
 222                 f_print(fout, "char **");
 223         } else {
 224                 f_print(fout, "%s *", fixtype(proc->res_type));
 225         }
 226         pvname(proc->proc_name, vp->vers_num);
 227         f_print(fout, "();\n");
 228 }
 229
 230 static
 231 penumdef(def)
 232         definition *def;
 233 {
 234         char *name = def->def_name;
 235         enumval_list *l;
 236         char *last = NULL;
 237         int count = 0;
 238
 239         f_print(fout, "enum %s {\n", name);
 240         for (l = def->def.en.vals; l != NULL; l = l->next) {
 241                 f_print(fout, "\t%s", l->name);
 242                 if (l->assignment) {
 243                         f_print(fout, " = %s", l->assignment);
 244                         last = l->assignment;
 245                         count = 1;
 246                 } else {
 247                         if (last == NULL) {
 248                                 f_print(fout, " = %d", count++);
 249                         } else {
 250                                 f_print(fout, " = %s + %d", last, count++);
 251                         }
 252                 }
 253                 f_print(fout, ",\n");
 254         }
 255         f_print(fout, "};\n");
 256         f_print(fout, "typedef enum %s %s;\n", name, name);
 257 }
 258
 259 static
 260 ptypedef(def)
 261         definition *def;
 262 {
 263         char *name = def->def_name;
 264         char *old = def->def.ty.old_type;
 265         char prefix[8]; /* enough to contain "struct ", including NUL */
 266         relation rel = def->def.ty.rel;
 267
 268
 269         if (!streq(name, old)) {
 270                 if (streq(old, "string")) {
 271                         old = "char";
 272                         rel = REL_POINTER;
 273                 } else if (streq(old, "opaque")) {
 274                         old = "char";
 275                 } else if (streq(old, "bool")) {
 276                         old = "bool_t";
 277                 }
 278                 if (undefined2(old, name) && def->def.ty.old_prefix) {
 279                         s_print(prefix, "%s ", def->def.ty.old_prefix);
 280                 } else {
 281                         prefix[0] = 0;
 282                 }
 283                 f_print(fout, "typedef ");
 284                 switch (rel) {
 285                 case REL_ARRAY:
 286                         f_print(fout, "struct %s {\n", name);
 287                         f_print(fout, "\tu_int %s_len;\n", name);
 288                         f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
 289                         f_print(fout, "} %s", name);
 290                         break;
 291                 case REL_POINTER:
 292                         f_print(fout, "%s%s *%s", prefix, old, name);
 293                         break;
 294                 case REL_VECTOR:
 295                         f_print(fout, "%s%s %s[%s]", prefix, old, name,
 296                                 def->def.ty.array_max);
 297                         break;
 298                 case REL_ALIAS:
 299                         f_print(fout, "%s%s %s", prefix, old, name);
 300                         break;
 301                 }
 302                 def->pc.rel = rel;
 303                 STOREVAL(&typedef_defined, def);
 304                 f_print(fout, ";\n");
 305         }
 306 }
 307
 308
 309 static
 310 pdeclaration(name, dec, tab)
 311         char *name;
 312         declaration *dec;
 313         int tab;
 314 {
 315         char buf[8];    /* enough to hold "struct ", include NUL */
 316         char *prefix;
 317         char *type;
 318
 319         if (streq(dec->type, "void")) {
 320                 return;
 321         }
 322         tabify(fout, tab);
 323         if (streq(dec->type, name) && !dec->prefix) {
 324                 f_print(fout, "struct ");
 325         }
 326         if (streq(dec->type, "string")) {
 327                 f_print(fout, "char *%s", dec->name);
 328         } else {
 329                 prefix = "";
 330                 if (streq(dec->type, "bool")) {
 331                         type = "bool_t";
 332                 } else if (streq(dec->type, "opaque")) {
 333                         type = "char";
 334                 } else {
 335                         if (dec->prefix) {
 336                                 s_print(buf, "%s ", dec->prefix);
 337                                 prefix = buf;
 338                         }
 339                         type = dec->type;
 340                 }
 341                 switch (dec->rel) {
 342                 case REL_ALIAS:
 343                         f_print(fout, "%s%s %s", prefix, type, dec->name);
 344                         break;
 345                 case REL_VECTOR:
 346                         f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
 347                                 dec->array_max);
 348                         break;
 349                 case REL_POINTER:
 350                         f_print(fout, "%s%s *%s", prefix, type, dec->name);
 351                         break;
 352                 case REL_ARRAY:
 353                         f_print(fout, "struct %s {\n", dec->name);
 354                         tabify(fout, tab);
 355                         f_print(fout, "\tu_int %s_len;\n", dec->name);
 356                         tabify(fout, tab);
 357                         f_print(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name);
 358                         tabify(fout, tab);
 359                         f_print(fout, "} %s", dec->name);
 360                         break;
 361                 }
 362         }
 363         f_print(fout, ";\n");
 364 }
 365
 366
 367
 368 static
 369 undefined2(type, stop)
 370         char *type;
 371         char *stop;
 372 {
 373         list *l;
 374         definition *def;
 375
 376         for (l = defined; l != NULL; l = l->next) {
 377                 def = (definition *) l->val;
 378                 if (def->def_kind != DEF_PROGRAM) {
 379                         if (streq(def->def_name, stop)) {
 380                                 return (1);
 381                         } else if (streq(def->def_name, type)) {
 382                                 return (0);
 383                         }
 384                 }
 385         }
 386         return (1);
 387 }