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 <afsconfig.h>
  36 #include <afs/param.h>
  37
  38 #include <roken.h>
  39
  40 #include <ctype.h>
  41
  42 #include "rpc_scan.h"
  43 #include "rpc_parse.h"
  44 #include "rpc_util.h"
  45
  46 /* Static declarations */
  47 static void pconstdef(definition * def);
  48 static void pstructdef(definition * def);
  49 static void puniondef(definition * def);
  50 static void psproc1(definition * defp, int callTconnF, char *type,
  51                     char *prefix, int iomask);
  52 static void psprocdef(definition * defp);
  53 static void penumdef(definition * def);
  54 static void ptypedef(definition * def);
  55 static void pdeclaration(char *name, declaration * dec, int tab);
  56 static int undefined2(char *type, char *stop);
  57
  58 /*
  59  * Print the C-version of an xdr definition
  60  */
  61 void
  62 print_datadef(definition * def)
  63 {
  64     if (Sflag)
  65         scan_print = 0;
  66     if ((def->def_kind != DEF_CONST) && (!IsRxgenDefinition(def))) {
  67         f_print(fout, "\n");
  68     }
  69     switch (def->def_kind) {
  70     case DEF_CUSTOMIZED:
  71     case DEF_STRUCT:
  72         pstructdef(def);
  73         break;
  74     case DEF_UNION:
  75         puniondef(def);
  76         break;
  77     case DEF_ENUM:
  78         penumdef(def);
  79         break;
  80     case DEF_TYPEDEF:
  81         ptypedef(def);
  82         break;
  83     case DEF_PROC:
  84         psprocdef(def);
  85         break;
  86     case DEF_CONST:
  87         pconstdef(def);
  88         break;
  89     default:
  90         break;
  91     }
  92     if (def->def_kind != DEF_CONST && (!IsRxgenDefinition(def))) {
  93         f_print(fout, "bool_t xdr_%s(XDR *xdrs, %s *objp);\n", def->def_name,
  94                 def->def_name);
  95     }
  96     if (def->def_kind != DEF_CONST && (!IsRxgenDefinition(def))) {
  97         f_print(fout, "\n");
  98     }
  99     if (Sflag)
 100         scan_print = 1;
 101 }
 102
 103 static void
 104 pconstdef(definition * def)
 105 {
 106     pdefine(def->def_name, def->def.co);
 107 }
 108
 109 static void
 110 pstructdef(definition * def)
 111 {
 112     decl_list *l;
 113     char *name = def->def_name;
 114
 115     f_print(fout, "struct %s {\n", name);
 116     for (l = def->def.st.decls; l != NULL; l = l->next) {
 117         pdeclaration(name, &l->decl, 1);
 118     }
 119     f_print(fout, "};\n");
 120     f_print(fout, "typedef struct %s %s;\n", name, name);
 121 }
 122
 123 static void
 124 puniondef(definition * def)
 125 {
 126     case_list *l;
 127     char *name = def->def_name;
 128     declaration *decl;
 129
 130     f_print(fout, "struct %s {\n", name);
 131     decl = &def->def.un.enum_decl;
 132     if (streq(decl->type, "bool")) {
 133         f_print(fout, "\tbool_t %s;\n", decl->name);
 134     } else {
 135         f_print(fout, "\t%s %s;\n", decl->type, decl->name);
 136     }
 137     f_print(fout, "\tunion {\n");
 138     for (l = def->def.un.cases; l != NULL; l = l->next) {
 139         pdeclaration(name, &l->case_decl, 2);
 140     }
 141     decl = def->def.un.default_decl;
 142     if (decl && !streq(decl->type, "void")) {
 143         pdeclaration(name, decl, 2);
 144     }
 145     if (brief_flag) {
 146         f_print(fout, "\t} u;\n");
 147     } else {
 148         f_print(fout, "\t} %s_u;\n", name);
 149     }
 150     f_print(fout, "};\n");
 151     f_print(fout, "typedef struct %s %s;\n", name, name);
 152     STOREVAL(&uniondef_defined, def);
 153 }
 154
 155
 156 void
 157 pdefine(char *name, char *num)
 158 {
 159     f_print(fout, "#define %s %s\n", name, num);
 160 }
 161
 162 static void
 163 psproc1(definition * defp, int callTconnF, char *type, char *prefix,
 164         int iomask)
 165 {
 166     proc1_list *plist;
 167
 168     f_print(fout, "\nextern %s %s%s%s(\n", type, prefix, defp->pc.proc_prefix,
 169             defp->pc.proc_name);
 170
 171     if (callTconnF == 1 || callTconnF == 3) {
 172         f_print(fout, "\t/*IN */ struct rx_call *z_call");
 173     } else if (callTconnF == 2) {
 174         f_print(fout, "\tstruct ubik_client *aclient, afs_int32 aflags");
 175     } else {
 176         f_print(fout, "\t/*IN */ struct rx_connection *z_conn");
 177     }
 178
 179     for (plist = defp->pc.plists; plist; plist = plist->next) {
 180         if (plist->component_kind == DEF_PARAM
 181             && (iomask & (1 << plist->pl.param_kind))) {
 182             switch (plist->pl.param_kind) {
 183             case DEF_INPARAM:
 184                 f_print(fout, ",\n\t/*IN %d*/ ",callTconnF);
 185                 if ((callTconnF != 3)
 186                     && strcmp(plist->pl.param_type, "char *")== 0)
 187                     f_print(fout, "const ");
 188                 break;
 189             case DEF_OUTPARAM:
 190                 f_print(fout, ",\n\t/*OUT*/ ");
 191                 break;
 192             case DEF_INOUTPARAM:
 193                 f_print(fout, ",\n\t/*I/O*/ ");
 194                 break;
 195             default:
 196                 break;
 197             }
 198             if (plist->pl.param_flag & OUT_STRING) {
 199                 f_print(fout, "%s *%s", plist->pl.param_type,
 200                         plist->pl.param_name);
 201             } else {
 202                 f_print(fout, "%s %s", plist->pl.param_type,
 203                         plist->pl.param_name);
 204             }
 205         }
 206     }
 207     f_print(fout, ");\n");
 208 }
 209
 210 static void
 211 psprocdef(definition * defp)
 212 {
 213     int split_flag = defp->pc.split_flag;
 214     int multi_flag = defp->pc.multi_flag;
 215
 216     if (split_flag || multi_flag) {
 217         psproc1(defp, 1, "int", "Start",
 218                 (1 << DEF_INPARAM) | (1 << DEF_INOUTPARAM));
 219         psproc1(defp, 1, "int", "End",
 220                 (1 << DEF_OUTPARAM) | (1 << DEF_INOUTPARAM));
 221     }
 222     if (!(!multi_flag && split_flag))
 223         psproc1(defp, 0, "int", "", 0xFFFFFFFF);
 224
 225     if (uflag && !kflag) {
 226         f_print(fout, "\n#ifndef KERNEL");
 227         psproc1(defp, 2, "int", "ubik_", 0xFFFFFFFF);
 228         f_print(fout, "#endif /* KERNEL */\n");
 229     }
 230
 231     if (*ServerPrefix)
 232         psproc1(defp, 3, "afs_int32", ServerPrefix, 0xFFFFFFFF);
 233 }
 234
 235 static void
 236 penumdef(definition * def)
 237 {
 238     char *name = def->def_name;
 239     enumval_list *l;
 240     char *last = NULL;
 241     int count = 0;
 242
 243     f_print(fout, "enum %s {\n", name);
 244     for (l = def->def.en.vals; l != NULL; l = l->next) {
 245         f_print(fout, "\t%s", l->name);
 246         if (l->assignment) {
 247             f_print(fout, " = %s", l->assignment);
 248             last = l->assignment;
 249             count = 1;
 250         } else {
 251             if (last == NULL) {
 252                 f_print(fout, " = %d", count++);
 253             } else {
 254                 f_print(fout, " = %s + %d", last, count++);
 255             }
 256         }
 257         f_print(fout, ",\n");
 258     }
 259     f_print(fout, "};\n");
 260     f_print(fout, "typedef enum %s %s;\n", name, name);
 261 }
 262
 263 static void
 264 ptypedef(definition * def)
 265 {
 266     char *name = def->def_name;
 267     char *old = def->def.ty.old_type;
 268     char prefix[8];             /* enough to contain "struct ", including NUL */
 269     relation rel = def->def.ty.rel;
 270
 271
 272     if (!streq(name, old)) {
 273         if (streq(old, "string")) {
 274             old = "char";
 275             rel = REL_POINTER;
 276         } else if (!brief_flag && streq(old, "opaque")) {
 277             old = "char";
 278         } else if (streq(old, "bool")) {
 279             old = "bool_t";
 280         }
 281         if (undefined2(old, name) && def->def.ty.old_prefix) {
 282             s_print(prefix, "%s ", def->def.ty.old_prefix);
 283         } else {
 284             prefix[0] = 0;
 285         }
 286         f_print(fout, "typedef ");
 287         switch (rel) {
 288         case REL_ARRAY:
 289             if (brief_flag) {
 290                 if (streq(old, "opaque")) {
 291                     f_print(fout, "struct rx_opaque %s", name);
 292                 } else {
 293                     f_print(fout, "struct {\n");
 294                     f_print(fout, "\tu_int len;\n");
 295                     f_print(fout, "\t%s%s *val;\n", prefix, old);
 296                     f_print(fout, "} %s", name);
 297                 }
 298             } else {
 299                 f_print(fout, "struct %s {\n", name);
 300                 f_print(fout, "\tu_int %s_len;\n", name);
 301                 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
 302                 f_print(fout, "} %s", name);
 303             }
 304             break;
 305         case REL_POINTER:
 306             f_print(fout, "%s%s *%s", prefix, old, name);
 307             break;
 308         case REL_VECTOR:
 309             f_print(fout, "%s%s %s[%s]", prefix, old, name,
 310                     def->def.ty.array_max);
 311             break;
 312         case REL_ALIAS:
 313             f_print(fout, "%s%s %s", prefix, old, name);
 314             break;
 315         }
 316         def->pc.rel = rel;
 317         STOREVAL(&typedef_defined, def);
 318         f_print(fout, ";\n");
 319     }
 320 }
 321
 322
 323 static void
 324 pdeclaration(char *name, declaration * dec, int tab)
 325 {
 326     char buf[8];                /* enough to hold "struct ", include NUL */
 327     char *prefix;
 328     char *type;
 329
 330     if (streq(dec->type, "void")) {
 331         return;
 332     }
 333     tabify(fout, tab);
 334     if (streq(dec->type, name) && !dec->prefix) {
 335         f_print(fout, "struct ");
 336     }
 337     if (streq(dec->type, "string")) {
 338         f_print(fout, "char *%s", dec->name);
 339     } else {
 340         prefix = "";
 341         if (streq(dec->type, "bool")) {
 342             type = "bool_t";
 343         } else if (streq(dec->type, "opaque")) {
 344             type = "char";
 345         } else {
 346             if (dec->prefix) {
 347                 s_print(buf, "%s ", dec->prefix);
 348                 prefix = buf;
 349             }
 350             type = dec->type;
 351         }
 352         switch (dec->rel) {
 353         case REL_ALIAS:
 354             f_print(fout, "%s%s %s", prefix, type, dec->name);
 355             break;
 356         case REL_VECTOR:
 357             f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
 358                     dec->array_max);
 359             break;
 360         case REL_POINTER:
 361             f_print(fout, "%s%s *%s", prefix, type, dec->name);
 362             break;
 363         case REL_ARRAY:
 364             if (brief_flag) {
 365                 if (streq(dec->type, "opaque")) {
 366                     f_print(fout, "struct rx_opaque %s",dec->name);
 367                 } else {
 368                     f_print(fout, "struct {\n");
 369                     tabify(fout, tab);
 370                     f_print(fout, "\tu_int len;\n");
 371                     tabify(fout, tab);
 372                     f_print(fout, "\t%s%s *val;\n", prefix, type);
 373                     tabify(fout, tab);
 374                     f_print(fout, "} %s", dec->name);
 375                 }
 376             } else {
 377                 f_print(fout, "struct %s {\n", dec->name);
 378                 tabify(fout, tab);
 379                 f_print(fout, "\tu_int %s_len;\n", dec->name);
 380                 tabify(fout, tab);
 381                 f_print(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name);
 382                 tabify(fout, tab);
 383                 f_print(fout, "} %s", dec->name);
 384             }
 385             break;
 386         }
 387     }
 388     f_print(fout, ";\n");
 389 }
 390
 391
 392
 393 static int
 394 undefined2(char *type, char *stop)
 395 {
 396     list *l;
 397     definition *def;
 398
 399     for (l = defined; l != NULL; l = l->next) {
 400         def = (definition *) l->val;
 401         if (streq(def->def_name, stop)) {
 402             return (1);
 403         } else if (streq(def->def_name, type)) {
 404             return (0);
 405         }
 406     }
 407     return (1);
 408 }