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 #if 0
31 #ifndef lint
32 #ident "@(#)rpc_hout.c 1.16 94/04/25 SMI"
33 static char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI";
34 #endif
35 #endif
36
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
39
40 /*
41 * rpc_hout.c, Header file outputter for the RPC protocol compiler
42 * Copyright (C) 1987, Sun Microsystems, Inc.
43 */
44 #include <stdio.h>
45 #include <ctype.h>
46 #include "rpc_parse.h"
47 #include "rpc_scan.h"
48 #include "rpc_util.h"
49
50 void storexdrfuncdecl(const char *, int );
51 static void pconstdef( definition * );
52 static void pstructdef( definition * );
53 static void puniondef( definition * );
54 static void pprogramdef( definition *, int );
55 static void penumdef( definition * );
56 static void ptypedef( definition * );
57 static void pdefine(const char *, const char *);
58 static int undefined2(const char *, const char *);
59 static void parglist(proc_list *, const char *);
60 static void pprocdef(proc_list *, version_list *, const char *, int);
61
62 /*
63 * Print the C-version of an xdr definition
64 */
65 void
print_datadef(definition * def,int headeronly)66 print_datadef(definition *def, int headeronly)
67 {
68
69 if (def->def_kind == DEF_PROGRAM) /* handle data only */
70 return;
71
72 if (def->def_kind != DEF_CONST) {
73 f_print(fout, "\n");
74 }
75 switch (def->def_kind) {
76 case DEF_STRUCT:
77 pstructdef(def);
78 break;
79 case DEF_UNION:
80 puniondef(def);
81 break;
82 case DEF_ENUM:
83 penumdef(def);
84 break;
85 case DEF_TYPEDEF:
86 ptypedef(def);
87 break;
88 case DEF_PROGRAM:
89 pprogramdef(def, headeronly);
90 break;
91 case DEF_CONST:
92 pconstdef(def);
93 break;
94 }
95 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
96 storexdrfuncdecl(def->def_name,
97 def->def_kind != DEF_TYPEDEF ||
98 !isvectordef(def->def.ty.old_type,
99 def->def.ty.rel));
100 }
101 }
102
103
104 void
print_funcdef(definition * def,int headeronly)105 print_funcdef(definition *def, int headeronly)
106 {
107 switch (def->def_kind) {
108 case DEF_PROGRAM:
109 f_print(fout, "\n");
110 pprogramdef(def, headeronly);
111 break;
112 default:
113 break;
114 }
115 }
116
117 /* store away enough information to allow the XDR functions to be spat
118 out at the end of the file */
119
120 void
storexdrfuncdecl(const char * name,int pointerp)121 storexdrfuncdecl(const char *name, int pointerp)
122 {
123 xdrfunc * xdrptr;
124
125 xdrptr = XALLOC(struct xdrfunc);
126
127 xdrptr->name = name;
128 xdrptr->pointerp = pointerp;
129 xdrptr->next = NULL;
130
131 if (xdrfunc_tail == NULL){
132 xdrfunc_head = xdrptr;
133 xdrfunc_tail = xdrptr;
134 } else {
135 xdrfunc_tail->next = xdrptr;
136 xdrfunc_tail = xdrptr;
137 }
138
139
140 }
141
142 void
print_xdr_func_def(const char * name,int pointerp)143 print_xdr_func_def(const char *name, int pointerp)
144 {
145 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name,
146 name, pointerp ? "*" : "");
147 }
148
149
150 static void
pconstdef(definition * def)151 pconstdef(definition *def)
152 {
153 pdefine(def->def_name, def->def.co);
154 }
155
156 /* print out the definitions for the arguments of functions in the
157 header file
158 */
159 static void
pargdef(definition * def)160 pargdef(definition *def)
161 {
162 decl_list *l;
163 version_list *vers;
164 char *name;
165 proc_list *plist;
166
167
168 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
169 for (plist = vers->procs; plist != NULL;
170 plist = plist->next) {
171
172 if (!newstyle || plist->arg_num < 2) {
173 continue; /* old style or single args */
174 }
175 name = plist->args.argname;
176 f_print(fout, "struct %s {\n", name);
177 for (l = plist->args.decls;
178 l != NULL; l = l->next) {
179 pdeclaration(name, &l->decl, 1,
180 ";\n");
181 }
182 f_print(fout, "};\n");
183 f_print(fout, "typedef struct %s %s;\n",
184 name, name);
185 storexdrfuncdecl(name, 1);
186 f_print(fout, "\n");
187 }
188 }
189 }
190
191
192 static void
pstructdef(definition * def)193 pstructdef(definition *def)
194 {
195 decl_list *l;
196 const char *name = def->def_name;
197
198 f_print(fout, "struct %s {\n", name);
199 for (l = def->def.st.decls; l != NULL; l = l->next) {
200 pdeclaration(name, &l->decl, 1, ";\n");
201 }
202 f_print(fout, "};\n");
203 f_print(fout, "typedef struct %s %s;\n", name, name);
204 }
205
206 static void
puniondef(definition * def)207 puniondef(definition *def)
208 {
209 case_list *l;
210 const char *name = def->def_name;
211 declaration *decl;
212
213 f_print(fout, "struct %s {\n", name);
214 decl = &def->def.un.enum_decl;
215 if (streq(decl->type, "bool")) {
216 f_print(fout, "\tbool_t %s;\n", decl->name);
217 } else {
218 f_print(fout, "\t%s %s;\n", decl->type, decl->name);
219 }
220 f_print(fout, "\tunion {\n");
221 for (l = def->def.un.cases; l != NULL; l = l->next) {
222 if (l->contflag == 0)
223 pdeclaration(name, &l->case_decl, 2, ";\n");
224 }
225 decl = def->def.un.default_decl;
226 if (decl && !streq(decl->type, "void")) {
227 pdeclaration(name, decl, 2, ";\n");
228 }
229 f_print(fout, "\t} %s_u;\n", name);
230 f_print(fout, "};\n");
231 f_print(fout, "typedef struct %s %s;\n", name, name);
232 }
233
234 static void
pdefine(const char * name,const char * num)235 pdefine(const char *name, const char *num)
236 {
237 f_print(fout, "#define\t%s %s\n", name, num);
238 }
239
240 static void
puldefine(const char * name,const char * num)241 puldefine(const char *name, const char *num)
242 {
243 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num);
244 }
245
246 static int
define_printed(proc_list * stop,version_list * start)247 define_printed(proc_list *stop, version_list *start)
248 {
249 version_list *vers;
250 proc_list *proc;
251
252 for (vers = start; vers != NULL; vers = vers->next) {
253 for (proc = vers->procs; proc != NULL; proc = proc->next) {
254 if (proc == stop) {
255 return (0);
256 } else if (streq(proc->proc_name, stop->proc_name)) {
257 return (1);
258 }
259 }
260 }
261 abort();
262 /* NOTREACHED */
263 }
264
265 static void
pfreeprocdef(const char * name,const char * vers)266 pfreeprocdef(const char * name, const char *vers)
267 {
268 f_print(fout, "extern int ");
269 pvname(name, vers);
270 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n");
271 }
272
273 static void
pdispatch(const char * name,const char * vers)274 pdispatch(const char * name, const char *vers)
275 {
276
277 f_print(fout, "void ");
278 pvname(name, vers);
279 f_print(fout, "(struct svc_req *rqstp, SVCXPRT *transp);\n");
280 }
281
282 static void
pprogramdef(definition * def,int headeronly)283 pprogramdef(definition *def, int headeronly)
284 {
285 version_list *vers;
286 proc_list *proc;
287 const char *ext;
288
289 pargdef(def);
290
291 puldefine(def->def_name, def->def.pr.prog_num);
292 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
293 if (tblflag) {
294 f_print(fout,
295 "extern struct rpcgen_table %s_%s_table[];\n",
296 locase(def->def_name), vers->vers_num);
297 f_print(fout,
298 "extern %s_%s_nproc;\n",
299 locase(def->def_name), vers->vers_num);
300 }
301 puldefine(vers->vers_name, vers->vers_num);
302
303 f_print(fout, "\n");
304 ext = "extern ";
305 if (headeronly) {
306 f_print(fout, "%s", ext);
307 pdispatch(def->def_name, vers->vers_num);
308 }
309 for (proc = vers->procs; proc != NULL; proc = proc->next) {
310 if (!define_printed(proc, def->def.pr.versions)) {
311 puldefine(proc->proc_name, proc->proc_num);
312 }
313 f_print(fout, "%s", ext);
314 pprocdef(proc, vers, "CLIENT *", 0);
315 f_print(fout, "%s", ext);
316 pprocdef(proc, vers, "struct svc_req *", 1);
317 }
318 pfreeprocdef(def->def_name, vers->vers_num);
319 }
320 }
321
322 static void
pprocdef(proc_list * proc,version_list * vp,const char * addargtype,int server_p)323 pprocdef(proc_list *proc, version_list *vp, const char *addargtype, int server_p)
324 {
325 if (mtflag) {/* Print MT style stubs */
326 if (server_p)
327 f_print(fout, "bool_t ");
328 else
329 f_print(fout, "enum clnt_stat ");
330 } else {
331 ptype(proc->res_prefix, proc->res_type, 1);
332 f_print(fout, "* ");
333 }
334 if (server_p)
335 pvname_svc(proc->proc_name, vp->vers_num);
336 else
337 pvname(proc->proc_name, vp->vers_num);
338
339 parglist(proc, addargtype);
340 }
341
342
343
344 /* print out argument list of procedure */
345 static void
parglist(proc_list * proc,const char * addargtype)346 parglist(proc_list *proc, const char *addargtype)
347 {
348 decl_list *dl;
349
350 f_print(fout, "(");
351 if (proc->arg_num < 2 && newstyle &&
352 streq(proc->args.decls->decl.type, "void")) {
353 /* 0 argument in new style: do nothing*/
354 }
355 else {
356 for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
357 ptype(dl->decl.prefix, dl->decl.type, 1);
358 if (!newstyle)
359 f_print(fout, "*");
360 /* old style passes by reference */
361 f_print(fout, ", ");
362 }
363 }
364
365 if (mtflag) {
366 ptype(proc->res_prefix, proc->res_type, 1);
367 f_print(fout, "*, ");
368 }
369
370 f_print(fout, "%s);\n", addargtype);
371
372 }
373
374 static void
penumdef(definition * def)375 penumdef(definition *def)
376 {
377 const char *name = def->def_name;
378 enumval_list *l;
379 const char *last = NULL;
380 int count = 0;
381
382 f_print(fout, "enum %s {\n", name);
383 for (l = def->def.en.vals; l != NULL; l = l->next) {
384 f_print(fout, "\t%s", l->name);
385 if (l->assignment) {
386 f_print(fout, " = %s", l->assignment);
387 last = l->assignment;
388 count = 1;
389 } else {
390 if (last == NULL) {
391 f_print(fout, " = %d", count++);
392 } else {
393 f_print(fout, " = %s + %d", last, count++);
394 }
395 }
396 if (l->next)
397 f_print(fout, ",\n");
398 else
399 f_print(fout, "\n");
400 }
401 f_print(fout, "};\n");
402 f_print(fout, "typedef enum %s %s;\n", name, name);
403 }
404
405 static void
ptypedef(definition * def)406 ptypedef(definition *def)
407 {
408 const char *name = def->def_name;
409 const char *old = def->def.ty.old_type;
410 char prefix[8]; /* enough to contain "struct ", including NUL */
411 relation rel = def->def.ty.rel;
412
413
414 if (!streq(name, old)) {
415 if (streq(old, "string")) {
416 old = "char";
417 rel = REL_POINTER;
418 } else if (streq(old, "opaque")) {
419 old = "char";
420 } else if (streq(old, "bool")) {
421 old = "bool_t";
422 }
423 if (undefined2(old, name) && def->def.ty.old_prefix) {
424 s_print(prefix, "%s ", def->def.ty.old_prefix);
425 } else {
426 prefix[0] = 0;
427 }
428 f_print(fout, "typedef ");
429 switch (rel) {
430 case REL_ARRAY:
431 f_print(fout, "struct {\n");
432 f_print(fout, "\tu_int %s_len;\n", name);
433 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
434 f_print(fout, "} %s", name);
435 break;
436 case REL_POINTER:
437 f_print(fout, "%s%s *%s", prefix, old, name);
438 break;
439 case REL_VECTOR:
440 f_print(fout, "%s%s %s[%s]", prefix, old, name,
441 def->def.ty.array_max);
442 break;
443 case REL_ALIAS:
444 f_print(fout, "%s%s %s", prefix, old, name);
445 break;
446 }
447 f_print(fout, ";\n");
448 }
449 }
450
451 void
pdeclaration(const char * name,declaration * dec,int tab,const char * separator)452 pdeclaration(const char *name, declaration *dec, int tab, const char *separator)
453 {
454 char buf[8]; /* enough to hold "struct ", include NUL */
455 const char *prefix;
456 const char *type;
457
458 if (streq(dec->type, "void")) {
459 return;
460 }
461 tabify(fout, tab);
462 if (streq(dec->type, name) && !dec->prefix) {
463 f_print(fout, "struct ");
464 }
465 if (streq(dec->type, "string")) {
466 f_print(fout, "char *%s", dec->name);
467 } else {
468 prefix = "";
469 if (streq(dec->type, "bool")) {
470 type = "bool_t";
471 } else if (streq(dec->type, "opaque")) {
472 type = "char";
473 } else {
474 if (dec->prefix) {
475 s_print(buf, "%s ", dec->prefix);
476 prefix = buf;
477 }
478 type = dec->type;
479 }
480 switch (dec->rel) {
481 case REL_ALIAS:
482 f_print(fout, "%s%s %s", prefix, type, dec->name);
483 break;
484 case REL_VECTOR:
485 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
486 dec->array_max);
487 break;
488 case REL_POINTER:
489 f_print(fout, "%s%s *%s", prefix, type, dec->name);
490 break;
491 case REL_ARRAY:
492 f_print(fout, "struct {\n");
493 tabify(fout, tab);
494 f_print(fout, "\tu_int %s_len;\n", dec->name);
495 tabify(fout, tab);
496 f_print(fout,
497 "\t%s%s *%s_val;\n", prefix, type, dec->name);
498 tabify(fout, tab);
499 f_print(fout, "} %s", dec->name);
500 break;
501 }
502 }
503 fputs(separator, fout);
504 }
505
506 static int
undefined2(const char * type,const char * stop)507 undefined2(const char *type, const char *stop)
508 {
509 list *l;
510 definition *def;
511
512 for (l = defined; l != NULL; l = l->next) {
513 def = (definition *) l->val;
514 if (def->def_kind != DEF_PROGRAM) {
515 if (streq(def->def_name, stop)) {
516 return (1);
517 } else if (streq(def->def_name, type)) {
518 return (0);
519 }
520 }
521 }
522 return (1);
523 }
524