1 /* @(#)rpc_parse.c 2.1 88/08/01 4.0 RPCSRC */
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.
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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.
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.
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28 * Mountain View, California 94043
31 static char sccsid[] = "@(#)rpc_parse.c 1.4 87/04/28 (C) 1987 SMI";
35 * rpc_parse.c, Parser for the RPC protocol compiler
36 * Copyright (C) 1987 Sun Microsystems, Inc.
41 #include "rpc_parse.h"
44 * return the next definition you see
52 defp = ALLOC(definition);
77 error(_("definition keyword expected"));
79 scan(TOK_SEMICOLON, &tok);
88 STOREVAL(&defined, defp);
101 defp->def_kind = DEF_STRUCT;
103 scan(TOK_IDENT, &tok);
104 defp->def_name = tok.str;
105 scan(TOK_LBRACE, &tok);
106 tailp = &defp->def.st.decls;
108 get_declaration(&dec, DEF_STRUCT);
109 decls = ALLOC(decl_list);
112 tailp = &decls->next;
113 scan(TOK_SEMICOLON, &tok);
115 } while (tok.kind != TOK_RBRACE);
126 version_list **vtailp;
130 defp->def_kind = DEF_PROGRAM;
131 scan(TOK_IDENT, &tok);
132 defp->def_name = tok.str;
133 scan(TOK_LBRACE, &tok);
134 vtailp = &defp->def.pr.versions;
135 scan(TOK_VERSION, &tok);
137 scan(TOK_IDENT, &tok);
138 vlist = ALLOC(version_list);
139 vlist->vers_name = tok.str;
140 scan(TOK_LBRACE, &tok);
141 ptailp = &vlist->procs;
143 plist = ALLOC(proc_list);
144 get_type(&plist->res_prefix, &plist->res_type, DEF_PROGRAM);
145 if (streq(plist->res_type, "opaque")) {
146 error(_("illegal result type"));
148 scan(TOK_IDENT, &tok);
149 plist->proc_name = tok.str;
150 scan(TOK_LPAREN, &tok);
151 get_type(&plist->arg_prefix, &plist->arg_type, DEF_PROGRAM);
152 if (streq(plist->arg_type, "opaque")) {
153 error("illegal argument type");
155 scan(TOK_RPAREN, &tok);
156 scan(TOK_EQUAL, &tok);
158 scan(TOK_SEMICOLON, &tok);
159 plist->proc_num = tok.str;
161 ptailp = &plist->next;
163 } while (tok.kind != TOK_RBRACE);
165 vtailp = &vlist->next;
166 scan(TOK_RBRACE, &tok);
167 scan(TOK_EQUAL, &tok);
169 vlist->vers_num = tok.str;
170 scan(TOK_SEMICOLON, &tok);
171 scan2(TOK_VERSION, TOK_RBRACE, &tok);
172 } while (tok.kind == TOK_VERSION);
173 scan(TOK_EQUAL, &tok);
175 defp->def.pr.prog_num = tok.str;
185 enumval_list **tailp;
187 defp->def_kind = DEF_ENUM;
188 scan(TOK_IDENT, &tok);
189 defp->def_name = tok.str;
190 scan(TOK_LBRACE, &tok);
191 tailp = &defp->def.en.vals;
193 scan(TOK_IDENT, &tok);
194 elist = ALLOC(enumval_list);
195 elist->name = tok.str;
196 elist->assignment = NULL;
197 scan3(TOK_COMMA, TOK_RBRACE, TOK_EQUAL, &tok);
198 if (tok.kind == TOK_EQUAL) {
200 elist->assignment = tok.str;
201 scan2(TOK_COMMA, TOK_RBRACE, &tok);
204 tailp = &elist->next;
205 } while (tok.kind != TOK_RBRACE);
215 defp->def_kind = DEF_CONST;
216 scan(TOK_IDENT, &tok);
217 defp->def_name = tok.str;
218 scan(TOK_EQUAL, &tok);
219 scan2(TOK_IDENT, TOK_STRCONST, &tok);
220 defp->def.co = tok.str;
232 defp->def_kind = DEF_UNION;
233 scan(TOK_IDENT, &tok);
234 defp->def_name = tok.str;
235 scan(TOK_SWITCH, &tok);
236 scan(TOK_LPAREN, &tok);
237 get_declaration(&dec, DEF_UNION);
238 defp->def.un.enum_decl = dec;
239 tailp = &defp->def.un.cases;
240 scan(TOK_RPAREN, &tok);
241 scan(TOK_LBRACE, &tok);
242 scan(TOK_CASE, &tok);
243 while (tok.kind == TOK_CASE) {
244 scan(TOK_IDENT, &tok);
245 cases = ALLOC(case_list);
246 cases->case_name = tok.str;
247 scan(TOK_COLON, &tok);
248 get_declaration(&dec, DEF_UNION);
249 cases->case_decl = dec;
251 tailp = &cases->next;
252 scan(TOK_SEMICOLON, &tok);
253 scan3(TOK_CASE, TOK_DEFAULT, TOK_RBRACE, &tok);
256 if (tok.kind == TOK_DEFAULT) {
257 scan(TOK_COLON, &tok);
258 get_declaration(&dec, DEF_UNION);
259 defp->def.un.default_decl = ALLOC(declaration);
260 *defp->def.un.default_decl = dec;
261 scan(TOK_SEMICOLON, &tok);
262 scan(TOK_RBRACE, &tok);
264 defp->def.un.default_decl = NULL;
275 defp->def_kind = DEF_TYPEDEF;
276 get_declaration(&dec, DEF_TYPEDEF);
277 defp->def_name = dec.name;
278 defp->def.ty.old_prefix = dec.prefix;
279 defp->def.ty.old_type = dec.type;
280 defp->def.ty.rel = dec.rel;
281 defp->def.ty.array_max = dec.array_max;
286 get_declaration(dec, dkind)
292 get_type(&dec->prefix, &dec->type, dkind);
293 dec->rel = REL_ALIAS;
294 if (streq(dec->type, "void")) {
297 scan2(TOK_STAR, TOK_IDENT, &tok);
298 if (tok.kind == TOK_STAR) {
299 dec->rel = REL_POINTER;
300 scan(TOK_IDENT, &tok);
303 if (peekscan(TOK_LBRACKET, &tok)) {
304 if (dec->rel == REL_POINTER) {
305 error(_("no array-of-pointer declarations -- use typedef"));
307 dec->rel = REL_VECTOR;
309 dec->array_max = tok.str;
310 scan(TOK_RBRACKET, &tok);
311 } else if (peekscan(TOK_LANGLE, &tok)) {
312 if (dec->rel == REL_POINTER) {
313 error(_("no array-of-pointer declarations -- use typedef"));
315 dec->rel = REL_ARRAY;
316 if (peekscan(TOK_RANGLE, &tok)) {
317 dec->array_max = "~0"; /* unspecified size, use max */
320 dec->array_max = tok.str;
321 scan(TOK_RANGLE, &tok);
324 if (streq(dec->type, "opaque")) {
325 if (dec->rel != REL_ARRAY && dec->rel != REL_VECTOR) {
326 error(_("array declaration expected"));
328 } else if (streq(dec->type, "string")) {
329 if (dec->rel != REL_ARRAY) {
330 error(_("variable-length array declaration expected"));
337 get_type(prefixp, typep, dkind)
354 scan(TOK_IDENT, &tok);
362 (void) peekscan(TOK_INT, &tok);
366 (void) peekscan(TOK_INT, &tok);
369 if (dkind != DEF_UNION && dkind != DEF_PROGRAM) {
370 error(_("voids allowed only inside union and program definitions"));
384 error(_("expected type specifier"));
404 (void) peekscan(TOK_INT, &tok);
409 (void) peekscan(TOK_INT, &tok);