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