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[] = "from: @(#)rpc_hout.c 1.6 87/07/28 (C) 1987 SMI";*/ 32 static char rcsid[] = "$Id: rpc_hout.c,v 1.1 1994/08/07 18:01:30 wollman Exp $"; 33 #endif 34 35 static int pconstdef(), pstructdef(), puniondef(), pdefine(), pprogramdef(), 36 penumdef(), ptypedef(), pdeclaration(), undefined2(); 37 38 /* 39 * rpc_hout.c, Header file outputter for the RPC protocol compiler 40 * Copyright (C) 1987, Sun Microsystems, Inc. 41 */ 42 #include <stdio.h> 43 #include <ctype.h> 44 #include "rpc_util.h" 45 #include "rpc_parse.h" 46 47 48 /* 49 * Print the C-version of an xdr definition 50 */ 51 void 52 print_datadef(def) 53 definition *def; 54 { 55 if (def->def_kind != DEF_CONST) { 56 f_print(fout, "\n"); 57 } 58 switch (def->def_kind) { 59 case DEF_STRUCT: 60 pstructdef(def); 61 break; 62 case DEF_UNION: 63 puniondef(def); 64 break; 65 case DEF_ENUM: 66 penumdef(def); 67 break; 68 case DEF_TYPEDEF: 69 ptypedef(def); 70 break; 71 case DEF_PROGRAM: 72 pprogramdef(def); 73 break; 74 case DEF_CONST: 75 pconstdef(def); 76 break; 77 } 78 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) { 79 f_print(fout, "bool_t xdr_%s();\n", def->def_name); 80 } 81 if (def->def_kind != DEF_CONST) { 82 f_print(fout, "\n"); 83 } 84 } 85 86 static 87 pconstdef(def) 88 definition *def; 89 { 90 pdefine(def->def_name, def->def.co); 91 } 92 93 static 94 pstructdef(def) 95 definition *def; 96 { 97 decl_list *l; 98 char *name = def->def_name; 99 100 f_print(fout, "struct %s {\n", name); 101 for (l = def->def.st.decls; l != NULL; l = l->next) { 102 pdeclaration(name, &l->decl, 1); 103 } 104 f_print(fout, "};\n"); 105 f_print(fout, "typedef struct %s %s;\n", name, name); 106 } 107 108 static 109 puniondef(def) 110 definition *def; 111 { 112 case_list *l; 113 char *name = def->def_name; 114 declaration *decl; 115 116 f_print(fout, "struct %s {\n", name); 117 decl = &def->def.un.enum_decl; 118 if (streq(decl->type, "bool")) { 119 f_print(fout, "\tbool_t %s;\n", decl->name); 120 } else { 121 f_print(fout, "\t%s %s;\n", decl->type, decl->name); 122 } 123 f_print(fout, "\tunion {\n"); 124 for (l = def->def.un.cases; l != NULL; l = l->next) { 125 pdeclaration(name, &l->case_decl, 2); 126 } 127 decl = def->def.un.default_decl; 128 if (decl && !streq(decl->type, "void")) { 129 pdeclaration(name, decl, 2); 130 } 131 f_print(fout, "\t} %s_u;\n", name); 132 f_print(fout, "};\n"); 133 f_print(fout, "typedef struct %s %s;\n", name, name); 134 } 135 136 137 138 static 139 pdefine(name, num) 140 char *name; 141 char *num; 142 { 143 f_print(fout, "#define %s %s\n", name, num); 144 } 145 146 static 147 puldefine(name, num) 148 char *name; 149 char *num; 150 { 151 f_print(fout, "#define %s ((u_long)%s)\n", name, num); 152 } 153 154 static 155 define_printed(stop, start) 156 proc_list *stop; 157 version_list *start; 158 { 159 version_list *vers; 160 proc_list *proc; 161 162 for (vers = start; vers != NULL; vers = vers->next) { 163 for (proc = vers->procs; proc != NULL; proc = proc->next) { 164 if (proc == stop) { 165 return (0); 166 } else if (streq(proc->proc_name, stop->proc_name)) { 167 return (1); 168 } 169 } 170 } 171 abort(); 172 /* NOTREACHED */ 173 } 174 175 176 static 177 pprogramdef(def) 178 definition *def; 179 { 180 version_list *vers; 181 proc_list *proc; 182 183 puldefine(def->def_name, def->def.pr.prog_num); 184 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) { 185 puldefine(vers->vers_name, vers->vers_num); 186 for (proc = vers->procs; proc != NULL; proc = proc->next) { 187 if (!define_printed(proc, def->def.pr.versions)) { 188 puldefine(proc->proc_name, proc->proc_num); 189 } 190 pprocdef(proc, vers); 191 } 192 } 193 } 194 195 196 pprocdef(proc, vp) 197 proc_list *proc; 198 version_list *vp; 199 { 200 f_print(fout, "extern "); 201 if (proc->res_prefix) { 202 if (streq(proc->res_prefix, "enum")) { 203 f_print(fout, "enum "); 204 } else { 205 f_print(fout, "struct "); 206 } 207 } 208 if (streq(proc->res_type, "bool")) { 209 f_print(fout, "bool_t *"); 210 } else if (streq(proc->res_type, "string")) { 211 f_print(fout, "char **"); 212 } else { 213 f_print(fout, "%s *", fixtype(proc->res_type)); 214 } 215 pvname(proc->proc_name, vp->vers_num); 216 f_print(fout, "();\n"); 217 } 218 219 static 220 penumdef(def) 221 definition *def; 222 { 223 char *name = def->def_name; 224 enumval_list *l; 225 char *last = NULL; 226 int count = 0; 227 228 f_print(fout, "enum %s {\n", name); 229 for (l = def->def.en.vals; l != NULL; l = l->next) { 230 f_print(fout, "\t%s", l->name); 231 if (l->assignment) { 232 f_print(fout, " = %s", l->assignment); 233 last = l->assignment; 234 count = 1; 235 } else { 236 if (last == NULL) { 237 f_print(fout, " = %d", count++); 238 } else { 239 f_print(fout, " = %s + %d", last, count++); 240 } 241 } 242 f_print(fout, ",\n"); 243 } 244 f_print(fout, "};\n"); 245 f_print(fout, "typedef enum %s %s;\n", name, name); 246 } 247 248 static 249 ptypedef(def) 250 definition *def; 251 { 252 char *name = def->def_name; 253 char *old = def->def.ty.old_type; 254 char prefix[8]; /* enough to contain "struct ", including NUL */ 255 relation rel = def->def.ty.rel; 256 257 258 if (!streq(name, old)) { 259 if (streq(old, "string")) { 260 old = "char"; 261 rel = REL_POINTER; 262 } else if (streq(old, "opaque")) { 263 old = "char"; 264 } else if (streq(old, "bool")) { 265 old = "bool_t"; 266 } 267 if (undefined2(old, name) && def->def.ty.old_prefix) { 268 s_print(prefix, "%s ", def->def.ty.old_prefix); 269 } else { 270 prefix[0] = 0; 271 } 272 f_print(fout, "typedef "); 273 switch (rel) { 274 case REL_ARRAY: 275 f_print(fout, "struct {\n"); 276 f_print(fout, "\tu_int %s_len;\n", name); 277 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name); 278 f_print(fout, "} %s", name); 279 break; 280 case REL_POINTER: 281 f_print(fout, "%s%s *%s", prefix, old, name); 282 break; 283 case REL_VECTOR: 284 f_print(fout, "%s%s %s[%s]", prefix, old, name, 285 def->def.ty.array_max); 286 break; 287 case REL_ALIAS: 288 f_print(fout, "%s%s %s", prefix, old, name); 289 break; 290 } 291 f_print(fout, ";\n"); 292 } 293 } 294 295 296 static 297 pdeclaration(name, dec, tab) 298 char *name; 299 declaration *dec; 300 int tab; 301 { 302 char buf[8]; /* enough to hold "struct ", include NUL */ 303 char *prefix; 304 char *type; 305 306 if (streq(dec->type, "void")) { 307 return; 308 } 309 tabify(fout, tab); 310 if (streq(dec->type, name) && !dec->prefix) { 311 f_print(fout, "struct "); 312 } 313 if (streq(dec->type, "string")) { 314 f_print(fout, "char *%s", dec->name); 315 } else { 316 prefix = ""; 317 if (streq(dec->type, "bool")) { 318 type = "bool_t"; 319 } else if (streq(dec->type, "opaque")) { 320 type = "char"; 321 } else { 322 if (dec->prefix) { 323 s_print(buf, "%s ", dec->prefix); 324 prefix = buf; 325 } 326 type = dec->type; 327 } 328 switch (dec->rel) { 329 case REL_ALIAS: 330 f_print(fout, "%s%s %s", prefix, type, dec->name); 331 break; 332 case REL_VECTOR: 333 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name, 334 dec->array_max); 335 break; 336 case REL_POINTER: 337 f_print(fout, "%s%s *%s", prefix, type, dec->name); 338 break; 339 case REL_ARRAY: 340 f_print(fout, "struct {\n"); 341 tabify(fout, tab); 342 f_print(fout, "\tu_int %s_len;\n", dec->name); 343 tabify(fout, tab); 344 f_print(fout, "\t%s%s *%s_val;\n", prefix, type, dec->name); 345 tabify(fout, tab); 346 f_print(fout, "} %s", dec->name); 347 break; 348 } 349 } 350 f_print(fout, ";\n"); 351 } 352 353 354 355 static 356 undefined2(type, stop) 357 char *type; 358 char *stop; 359 { 360 list *l; 361 definition *def; 362 363 for (l = defined; l != NULL; l = l->next) { 364 def = (definition *) l->val; 365 if (def->def_kind != DEF_PROGRAM) { 366 if (streq(def->def_name, stop)) { 367 return (1); 368 } else if (streq(def->def_name, type)) { 369 return (0); 370 } 371 } 372 } 373 return (1); 374 } 375