1 /*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
28 */
29
30 /*
31 * rpc_hout.c, Header file outputter for the RPC protocol compiler
32 * Copyright (C) 1987, Sun Microsystems, Inc.
33 */
34 #include <stdio.h>
35 #include <ctype.h>
36 #include "rpc_parse.h"
37 #include "rpc_scan.h"
38 #include "rpc_util.h"
39
40 void storexdrfuncdecl(const char *, int );
41 static void pconstdef( definition * );
42 static void pstructdef( definition * );
43 static void puniondef( definition * );
44 static void pprogramdef( definition *, int );
45 static void penumdef( definition * );
46 static void ptypedef( definition * );
47 static void pdefine(const char *, const char *);
48 static int undefined2(const char *, const char *);
49 static void parglist(proc_list *, const char *);
50 static void pprocdef(proc_list *, version_list *, const char *, int);
51
52 /*
53 * Print the C-version of an xdr definition
54 */
55 void
print_datadef(definition * def,int headeronly)56 print_datadef(definition *def, int headeronly)
57 {
58
59 if (def->def_kind == DEF_PROGRAM) /* handle data only */
60 return;
61
62 if (def->def_kind != DEF_CONST) {
63 f_print(fout, "\n");
64 }
65 switch (def->def_kind) {
66 case DEF_STRUCT:
67 pstructdef(def);
68 break;
69 case DEF_UNION:
70 puniondef(def);
71 break;
72 case DEF_ENUM:
73 penumdef(def);
74 break;
75 case DEF_TYPEDEF:
76 ptypedef(def);
77 break;
78 case DEF_PROGRAM:
79 pprogramdef(def, headeronly);
80 break;
81 case DEF_CONST:
82 pconstdef(def);
83 break;
84 }
85 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
86 storexdrfuncdecl(def->def_name,
87 def->def_kind != DEF_TYPEDEF ||
88 !isvectordef(def->def.ty.old_type,
89 def->def.ty.rel));
90 }
91 }
92
93
94 void
print_funcdef(definition * def,int headeronly)95 print_funcdef(definition *def, int headeronly)
96 {
97 switch (def->def_kind) {
98 case DEF_PROGRAM:
99 f_print(fout, "\n");
100 pprogramdef(def, headeronly);
101 break;
102 default:
103 break;
104 }
105 }
106
107 /* store away enough information to allow the XDR functions to be spat
108 out at the end of the file */
109
110 void
storexdrfuncdecl(const char * name,int pointerp)111 storexdrfuncdecl(const char *name, int pointerp)
112 {
113 xdrfunc * xdrptr;
114
115 xdrptr = XALLOC(struct xdrfunc);
116
117 xdrptr->name = name;
118 xdrptr->pointerp = pointerp;
119 xdrptr->next = NULL;
120
121 if (xdrfunc_tail == NULL){
122 xdrfunc_head = xdrptr;
123 xdrfunc_tail = xdrptr;
124 } else {
125 xdrfunc_tail->next = xdrptr;
126 xdrfunc_tail = xdrptr;
127 }
128
129
130 }
131
132 void
print_xdr_func_def(const char * name,int pointerp)133 print_xdr_func_def(const char *name, int pointerp)
134 {
135 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name,
136 name, pointerp ? "*" : "");
137 }
138
139
140 static void
pconstdef(definition * def)141 pconstdef(definition *def)
142 {
143 pdefine(def->def_name, def->def.co);
144 }
145
146 /* print out the definitions for the arguments of functions in the
147 header file
148 */
149 static void
pargdef(definition * def)150 pargdef(definition *def)
151 {
152 decl_list *l;
153 version_list *vers;
154 char *name;
155 proc_list *plist;
156
157
158 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
159 for (plist = vers->procs; plist != NULL;
160 plist = plist->next) {
161
162 if (!newstyle || plist->arg_num < 2) {
163 continue; /* old style or single args */
164 }
165 name = plist->args.argname;
166 f_print(fout, "struct %s {\n", name);
167 for (l = plist->args.decls;
168 l != NULL; l = l->next) {
169 pdeclaration(name, &l->decl, 1,
170 ";\n");
171 }
172 f_print(fout, "};\n");
173 f_print(fout, "typedef struct %s %s;\n",
174 name, name);
175 storexdrfuncdecl(name, 1);
176 f_print(fout, "\n");
177 }
178 }
179 }
180
181
182 static void
pstructdef(definition * def)183 pstructdef(definition *def)
184 {
185 decl_list *l;
186 const char *name = def->def_name;
187
188 f_print(fout, "struct %s {\n", name);
189 for (l = def->def.st.decls; l != NULL; l = l->next) {
190 pdeclaration(name, &l->decl, 1, ";\n");
191 }
192 f_print(fout, "};\n");
193 f_print(fout, "typedef struct %s %s;\n", name, name);
194 }
195
196 static void
puniondef(definition * def)197 puniondef(definition *def)
198 {
199 case_list *l;
200 const char *name = def->def_name;
201 declaration *decl;
202
203 f_print(fout, "struct %s {\n", name);
204 decl = &def->def.un.enum_decl;
205 if (streq(decl->type, "bool")) {
206 f_print(fout, "\tbool_t %s;\n", decl->name);
207 } else {
208 f_print(fout, "\t%s %s;\n", decl->type, decl->name);
209 }
210 f_print(fout, "\tunion {\n");
211 for (l = def->def.un.cases; l != NULL; l = l->next) {
212 if (l->contflag == 0)
213 pdeclaration(name, &l->case_decl, 2, ";\n");
214 }
215 decl = def->def.un.default_decl;
216 if (decl && !streq(decl->type, "void")) {
217 pdeclaration(name, decl, 2, ";\n");
218 }
219 f_print(fout, "\t} %s_u;\n", name);
220 f_print(fout, "};\n");
221 f_print(fout, "typedef struct %s %s;\n", name, name);
222 }
223
224 static void
pdefine(const char * name,const char * num)225 pdefine(const char *name, const char *num)
226 {
227 f_print(fout, "#define\t%s %s\n", name, num);
228 }
229
230 static void
puldefine(const char * name,const char * num)231 puldefine(const char *name, const char *num)
232 {
233 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num);
234 }
235
236 static int
define_printed(proc_list * stop,version_list * start)237 define_printed(proc_list *stop, version_list *start)
238 {
239 version_list *vers;
240 proc_list *proc;
241
242 for (vers = start; vers != NULL; vers = vers->next) {
243 for (proc = vers->procs; proc != NULL; proc = proc->next) {
244 if (proc == stop) {
245 return (0);
246 } else if (streq(proc->proc_name, stop->proc_name)) {
247 return (1);
248 }
249 }
250 }
251 abort();
252 /* NOTREACHED */
253 }
254
255 static void
pfreeprocdef(const char * name,const char * vers)256 pfreeprocdef(const char * name, const char *vers)
257 {
258 f_print(fout, "extern int ");
259 pvname(name, vers);
260 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n");
261 }
262
263 static void
pdispatch(const char * name,const char * vers)264 pdispatch(const char * name, const char *vers)
265 {
266
267 f_print(fout, "void ");
268 pvname(name, vers);
269 f_print(fout, "(struct svc_req *rqstp, SVCXPRT *transp);\n");
270 }
271
272 static void
pprogramdef(definition * def,int headeronly)273 pprogramdef(definition *def, int headeronly)
274 {
275 version_list *vers;
276 proc_list *proc;
277 const char *ext;
278
279 pargdef(def);
280
281 puldefine(def->def_name, def->def.pr.prog_num);
282 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
283 if (tblflag) {
284 f_print(fout,
285 "extern struct rpcgen_table %s_%s_table[];\n",
286 locase(def->def_name), vers->vers_num);
287 f_print(fout,
288 "extern %s_%s_nproc;\n",
289 locase(def->def_name), vers->vers_num);
290 }
291 puldefine(vers->vers_name, vers->vers_num);
292
293 f_print(fout, "\n");
294 ext = "extern ";
295 if (headeronly) {
296 f_print(fout, "%s", ext);
297 pdispatch(def->def_name, vers->vers_num);
298 }
299 for (proc = vers->procs; proc != NULL; proc = proc->next) {
300 if (!define_printed(proc, def->def.pr.versions)) {
301 puldefine(proc->proc_name, proc->proc_num);
302 }
303 f_print(fout, "%s", ext);
304 pprocdef(proc, vers, "CLIENT *", 0);
305 f_print(fout, "%s", ext);
306 pprocdef(proc, vers, "struct svc_req *", 1);
307 }
308 pfreeprocdef(def->def_name, vers->vers_num);
309 }
310 }
311
312 static void
pprocdef(proc_list * proc,version_list * vp,const char * addargtype,int server_p)313 pprocdef(proc_list *proc, version_list *vp, const char *addargtype, int server_p)
314 {
315 if (mtflag) {/* Print MT style stubs */
316 if (server_p)
317 f_print(fout, "bool_t ");
318 else
319 f_print(fout, "enum clnt_stat ");
320 } else {
321 ptype(proc->res_prefix, proc->res_type, 1);
322 f_print(fout, "* ");
323 }
324 if (server_p)
325 pvname_svc(proc->proc_name, vp->vers_num);
326 else
327 pvname(proc->proc_name, vp->vers_num);
328
329 parglist(proc, addargtype);
330 }
331
332
333
334 /* print out argument list of procedure */
335 static void
parglist(proc_list * proc,const char * addargtype)336 parglist(proc_list *proc, const char *addargtype)
337 {
338 decl_list *dl;
339
340 f_print(fout, "(");
341 if (proc->arg_num < 2 && newstyle &&
342 streq(proc->args.decls->decl.type, "void")) {
343 /* 0 argument in new style: do nothing*/
344 }
345 else {
346 for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
347 ptype(dl->decl.prefix, dl->decl.type, 1);
348 if (!newstyle)
349 f_print(fout, "*");
350 /* old style passes by reference */
351 f_print(fout, ", ");
352 }
353 }
354
355 if (mtflag) {
356 ptype(proc->res_prefix, proc->res_type, 1);
357 f_print(fout, "*, ");
358 }
359
360 f_print(fout, "%s);\n", addargtype);
361
362 }
363
364 static void
penumdef(definition * def)365 penumdef(definition *def)
366 {
367 const char *name = def->def_name;
368 enumval_list *l;
369 const char *last = NULL;
370 int count = 0;
371
372 f_print(fout, "enum %s {\n", name);
373 for (l = def->def.en.vals; l != NULL; l = l->next) {
374 f_print(fout, "\t%s", l->name);
375 if (l->assignment) {
376 f_print(fout, " = %s", l->assignment);
377 last = l->assignment;
378 count = 1;
379 } else {
380 if (last == NULL) {
381 f_print(fout, " = %d", count++);
382 } else {
383 f_print(fout, " = %s + %d", last, count++);
384 }
385 }
386 if (l->next)
387 f_print(fout, ",\n");
388 else
389 f_print(fout, "\n");
390 }
391 f_print(fout, "};\n");
392 f_print(fout, "typedef enum %s %s;\n", name, name);
393 }
394
395 static void
ptypedef(definition * def)396 ptypedef(definition *def)
397 {
398 const char *name = def->def_name;
399 const char *old = def->def.ty.old_type;
400 char prefix[8]; /* enough to contain "struct ", including NUL */
401 relation rel = def->def.ty.rel;
402
403
404 if (!streq(name, old)) {
405 if (streq(old, "string")) {
406 old = "char";
407 rel = REL_POINTER;
408 } else if (streq(old, "opaque")) {
409 old = "char";
410 } else if (streq(old, "bool")) {
411 old = "bool_t";
412 }
413 if (undefined2(old, name) && def->def.ty.old_prefix) {
414 s_print(prefix, "%s ", def->def.ty.old_prefix);
415 } else {
416 prefix[0] = 0;
417 }
418 f_print(fout, "typedef ");
419 switch (rel) {
420 case REL_ARRAY:
421 f_print(fout, "struct {\n");
422 f_print(fout, "\tu_int %s_len;\n", name);
423 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
424 f_print(fout, "} %s", name);
425 break;
426 case REL_POINTER:
427 f_print(fout, "%s%s *%s", prefix, old, name);
428 break;
429 case REL_VECTOR:
430 f_print(fout, "%s%s %s[%s]", prefix, old, name,
431 def->def.ty.array_max);
432 break;
433 case REL_ALIAS:
434 f_print(fout, "%s%s %s", prefix, old, name);
435 break;
436 }
437 f_print(fout, ";\n");
438 }
439 }
440
441 void
pdeclaration(const char * name,declaration * dec,int tab,const char * separator)442 pdeclaration(const char *name, declaration *dec, int tab, const char *separator)
443 {
444 char buf[8]; /* enough to hold "struct ", include NUL */
445 const char *prefix;
446 const char *type;
447
448 if (streq(dec->type, "void")) {
449 return;
450 }
451 tabify(fout, tab);
452 if (streq(dec->type, name) && !dec->prefix) {
453 f_print(fout, "struct ");
454 }
455 if (streq(dec->type, "string")) {
456 f_print(fout, "char *%s", dec->name);
457 } else {
458 prefix = "";
459 if (streq(dec->type, "bool")) {
460 type = "bool_t";
461 } else if (streq(dec->type, "opaque")) {
462 type = "char";
463 } else {
464 if (dec->prefix) {
465 s_print(buf, "%s ", dec->prefix);
466 prefix = buf;
467 }
468 type = dec->type;
469 }
470 switch (dec->rel) {
471 case REL_ALIAS:
472 f_print(fout, "%s%s %s", prefix, type, dec->name);
473 break;
474 case REL_VECTOR:
475 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
476 dec->array_max);
477 break;
478 case REL_POINTER:
479 f_print(fout, "%s%s *%s", prefix, type, dec->name);
480 break;
481 case REL_ARRAY:
482 f_print(fout, "struct {\n");
483 tabify(fout, tab);
484 f_print(fout, "\tu_int %s_len;\n", dec->name);
485 tabify(fout, tab);
486 f_print(fout,
487 "\t%s%s *%s_val;\n", prefix, type, dec->name);
488 tabify(fout, tab);
489 f_print(fout, "} %s", dec->name);
490 break;
491 }
492 }
493 fputs(separator, fout);
494 }
495
496 static int
undefined2(const char * type,const char * stop)497 undefined2(const char *type, const char *stop)
498 {
499 list *l;
500 definition *def;
501
502 for (l = defined; l != NULL; l = l->next) {
503 def = (definition *) l->val;
504 if (def->def_kind != DEF_PROGRAM) {
505 if (streq(def->def_name, stop)) {
506 return (1);
507 } else if (streq(def->def_name, type)) {
508 return (0);
509 }
510 }
511 }
512 return (1);
513 }
514