Deleted Added
sdiff udiff text old ( 12798 ) new ( 17142 )
full compact
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#ident "@(#)rpc_cout.c 1.14 93/07/05 SMI"
31
32#ifndef lint
33static char sccsid[] = "@(#)rpc_cout.c 1.13 89/02/22 (C) 1987 SMI";
34#endif
35
36/*
37 * rpc_cout.c, XDR routine outputter for the RPC protocol compiler
38 * Copyright (C) 1987, Sun Microsystems, Inc.
39 */
40#include <stdio.h>
41#include <string.h>
42#include <ctype.h>
43#include "rpc_parse.h"
44#include "rpc_util.h"
45
45static int print_header __P(( definition * ));
46static int print_trailer __P(( void ));
47static int print_stat __P(( int , declaration * ));
48static int emit_enum __P(( definition * ));
49static int emit_program __P(( definition * ));
50static int emit_union __P(( definition * ));
51static int emit_struct __P(( definition * ));
52static int emit_typedef __P(( definition * ));
46static void print_header __P(( definition * ));
47static void print_trailer __P(( void ));
48static void print_stat __P(( int , declaration * ));
49static void emit_enum __P(( definition * ));
50static void emit_program __P(( definition * ));
51static void emit_union __P(( definition * ));
52static void emit_struct __P(( definition * ));
53static void emit_typedef __P(( definition * ));
54static void emit_inline __P(( int, declaration *, int ));
55static void emit_single_in_line __P(( int, declaration *, int, relation ));
56
57/*
58 * Emit the C-routine for the given definition
59 */
60void
61emit(def)
62 definition *def;
63{
64 if (def->def_kind == DEF_CONST) {
65 return;
66 }
67 if (def->def_kind == DEF_PROGRAM) {
68 emit_program(def);
69 return;
70 }
71 if (def->def_kind == DEF_TYPEDEF) {
72 /*
73 * now we need to handle declarations like
74 * struct typedef foo foo;
75 * since we dont want this to be expanded into 2 calls to xdr_foo
76 */
77
78 if (strcmp(def->def.ty.old_type, def->def_name) == 0)
79 return;
80 };
81 print_header(def);
82 switch (def->def_kind) {
83 case DEF_UNION:
84 emit_union(def);
85 break;
86 case DEF_ENUM:
87 emit_enum(def);
88 break;
89 case DEF_STRUCT:
90 emit_struct(def);
91 break;
92 case DEF_TYPEDEF:
93 emit_typedef(def);
94 break;
95 /* DEF_CONST and DEF_PROGRAM have already been handled */
96 default:
97 }
98 print_trailer();
99}
100
96static
101static int
102findtype(def, type)
103 definition *def;
104 char *type;
105{
106
107 if (def->def_kind == DEF_PROGRAM || def->def_kind == DEF_CONST) {
108 return (0);
109 } else {
110 return (streq(def->def_name, type));
111 }
112}
113
109static
114static int
115undefined(type)
116 char *type;
117{
118 definition *def;
119
120 def = (definition *) FINDVAL(defined, type, findtype);
121 return (def == NULL);
122}
123
124
120static
125static void
126print_generic_header(procname, pointerp)
127 char* procname;
128 int pointerp;
129{
130 f_print(fout, "\n");
131 f_print(fout, "bool_t\n");
132 if (Cflag) {
133 f_print(fout, "xdr_%s(", procname);
134 f_print(fout, "register XDR *xdrs, ");
135 f_print(fout, "%s ", procname);
136 if (pointerp)
137 f_print(fout, "*");
138 f_print(fout, "objp)\n{\n\n");
139 } else {
140 f_print(fout, "xdr_%s(xdrs, objp)\n", procname);
141 f_print(fout, "\tregister XDR *xdrs;\n");
142 f_print(fout, "\t%s ", procname);
143 if (pointerp)
144 f_print(fout, "*");
145 f_print(fout, "objp;\n{\n\n");
146 }
147}
148
144static
149static void
150print_header(def)
151 definition *def;
152{
148
149 decl_list *dl;
150 bas_type *ptr;
151 int i;
152
153 print_generic_header(def->def_name,
154 def->def_kind != DEF_TYPEDEF ||
155 !isvectordef(def->def.ty.old_type,
156 def->def.ty.rel));
157 /* Now add Inline support */
158
159 if (inline == 0)
160 return;
161 /* May cause lint to complain. but ... */
162 f_print(fout, "\tregister long *buf;\n\n");
163}
164
165static
165static void
166print_prog_header(plist)
167 proc_list *plist;
168{
169 print_generic_header(plist->args.argname, 1);
170}
171
172static
172static void
173print_trailer()
174{
175 f_print(fout, "\treturn (TRUE);\n");
176 f_print(fout, "}\n");
177}
178
179
180static
180static void
181print_ifopen(indent, name)
182 int indent;
183 char *name;
184{
185 tabify(fout, indent);
186 f_print(fout, "if (!xdr_%s(xdrs", name);
187}
188
189static
189static void
190print_ifarg(arg)
191 char *arg;
192{
193 f_print(fout, ", %s", arg);
194}
195
196static
196static void
197print_ifsizeof(indent, prefix, type)
198 int indent;
199 char *prefix;
200 char *type;
201{
202 if (indent) {
203 f_print(fout, ",\n");
204 tabify(fout, indent);
205 } else {
206 f_print(fout, ", ");
207 }
208 if (streq(type, "bool")) {
209 f_print(fout, "sizeof (bool_t), (xdrproc_t) xdr_bool");
210 } else {
211 f_print(fout, "sizeof (");
212 if (undefined(type) && prefix) {
213 f_print(fout, "%s ", prefix);
214 }
215 f_print(fout, "%s), (xdrproc_t) xdr_%s", type, type);
216 }
217}
218
219static
219static void
220print_ifclose(indent)
221 int indent;
222{
223 f_print(fout, "))\n");
224 tabify(fout, indent);
225 f_print(fout, "\treturn (FALSE);\n");
226}
227
228static
228static void
229print_ifstat(indent, prefix, type, rel, amax, objname, name)
230 int indent;
231 char *prefix;
232 char *type;
233 relation rel;
234 char *amax;
235 char *objname;
236 char *name;
237{
238 char *alt = NULL;
239
240 switch (rel) {
241 case REL_POINTER:
242 print_ifopen(indent, "pointer");
243 print_ifarg("(char **)");
244 f_print(fout, "%s", objname);
245 print_ifsizeof(0, prefix, type);
246 break;
247 case REL_VECTOR:
248 if (streq(type, "string")) {
249 alt = "string";
250 } else if (streq(type, "opaque")) {
251 alt = "opaque";
252 }
253 if (alt) {
254 print_ifopen(indent, alt);
255 print_ifarg(objname);
256 } else {
257 print_ifopen(indent, "vector");
258 print_ifarg("(char *)");
259 f_print(fout, "%s", objname);
260 }
261 print_ifarg(amax);
262 if (!alt) {
263 print_ifsizeof(indent + 1, prefix, type);
264 }
265 break;
266 case REL_ARRAY:
267 if (streq(type, "string")) {
268 alt = "string";
269 } else if (streq(type, "opaque")) {
270 alt = "bytes";
271 }
272 if (streq(type, "string")) {
273 print_ifopen(indent, alt);
274 print_ifarg(objname);
275 } else {
276 if (alt) {
277 print_ifopen(indent, alt);
278 } else {
279 print_ifopen(indent, "array");
280 }
281 print_ifarg("(char **)");
282 if (*objname == '&') {
283 f_print(fout, "%s.%s_val, (u_int *) %s.%s_len",
284 objname, name, objname, name);
285 } else {
286 f_print(fout,
287 "&%s->%s_val, (u_int *) &%s->%s_len",
288 objname, name, objname, name);
289 }
290 }
291 print_ifarg(amax);
292 if (!alt) {
293 print_ifsizeof(indent + 1, prefix, type);
294 }
295 break;
296 case REL_ALIAS:
297 print_ifopen(indent, type);
298 print_ifarg(objname);
299 break;
300 }
301 print_ifclose(indent);
302}
303
304/* ARGSUSED */
305static
305static void
306emit_enum(def)
307 definition *def;
308{
309 print_ifopen(1, "enum");
310 print_ifarg("(enum_t *)objp");
311 print_ifclose(1);
312}
313
314static
314static void
315emit_program(def)
316 definition *def;
317{
318 decl_list *dl;
319 version_list *vlist;
320 proc_list *plist;
321
322 for (vlist = def->def.pr.versions; vlist != NULL; vlist = vlist->next)
323 for (plist = vlist->procs; plist != NULL; plist = plist->next) {
324 if (!newstyle || plist->arg_num < 2)
325 continue; /* old style, or single argument */
326 print_prog_header(plist);
327 for (dl = plist->args.decls; dl != NULL;
328 dl = dl->next)
329 print_stat(1, &dl->decl);
330 print_trailer();
331 }
332}
333
334
335static
335static void
336emit_union(def)
337 definition *def;
338{
339 declaration *dflt;
340 case_list *cl;
341 declaration *cs;
342 char *object;
343 char *vecformat = "objp->%s_u.%s";
344 char *format = "&objp->%s_u.%s";
345
346 print_stat(1, &def->def.un.enum_decl);
347 f_print(fout, "\tswitch (objp->%s) {\n", def->def.un.enum_decl.name);
348 for (cl = def->def.un.cases; cl != NULL; cl = cl->next) {
349
350 f_print(fout, "\tcase %s:\n", cl->case_name);
351 if (cl->contflag == 1) /* a continued case statement */
352 continue;
353 cs = &cl->case_decl;
354 if (!streq(cs->type, "void")) {
355 object = alloc(strlen(def->def_name) + strlen(format) +
356 strlen(cs->name) + 1);
357 if (isvectordef (cs->type, cs->rel)) {
358 s_print(object, vecformat, def->def_name,
359 cs->name);
360 } else {
361 s_print(object, format, def->def_name,
362 cs->name);
363 }
364 print_ifstat(2, cs->prefix, cs->type, cs->rel,
365 cs->array_max, object, cs->name);
366 free(object);
367 }
368 f_print(fout, "\t\tbreak;\n");
369 }
370 dflt = def->def.un.default_decl;
371 if (dflt != NULL) {
372 if (!streq(dflt->type, "void")) {
373 f_print(fout, "\tdefault:\n");
374 object = alloc(strlen(def->def_name) + strlen(format) +
375strlen(dflt->name) + 1);
376 if (isvectordef (dflt->type, dflt->rel)) {
377 s_print(object, vecformat, def->def_name,
378 dflt->name);
379 } else {
380 s_print(object, format, def->def_name,
381 dflt->name);
382 }
383
384 print_ifstat(2, dflt->prefix, dflt->type, dflt->rel,
385 dflt->array_max, object, dflt->name);
386 free(object);
387 f_print(fout, "\t\tbreak;\n");
388 } else {
389 f_print(fout, "\tdefault:\n");
390 f_print(fout, "\t\tbreak;\n");
391 }
392 } else {
393 f_print(fout, "\tdefault:\n");
394 f_print(fout, "\t\treturn (FALSE);\n");
395 }
396
397 f_print(fout, "\t}\n");
398}
399
400static void
401inline_struct(def, flag)
402definition *def;
403int flag;
404{
405 decl_list *dl;
406 int i, size;
407 decl_list *cur, *psav;
408 bas_type *ptr;
409 char *sizestr, *plus;
410 char ptemp[256];
411 int indent = 1;
412
413 if (flag == PUT)
414 f_print(fout, "\n\tif (xdrs->x_op == XDR_ENCODE) {\n");
415 else
416 f_print(fout, "\t\treturn (TRUE);\n\t} else if (xdrs->x_op == XDR_DECODE) {\n");
417
418 i = 0;
419 size = 0;
420 sizestr = NULL;
421 for (dl = def->def.st.decls; dl != NULL; dl = dl->next) { /* xxx */
422 /* now walk down the list and check for basic types */
423 if ((dl->decl.prefix == NULL) &&
424 ((ptr = find_type(dl->decl.type)) != NULL) &&
425 ((dl->decl.rel == REL_ALIAS) ||
426 (dl->decl.rel == REL_VECTOR))){
427 if (i == 0)
428 cur = dl;
429 i++;
430
431 if (dl->decl.rel == REL_ALIAS)
432 size += ptr->length;
433 else {
434 /* this code is required to handle arrays */
435 if (sizestr == NULL)
436 plus = "";
437 else
438 plus = " + ";
439
440 if (ptr->length != 1)
441 s_print(ptemp, "%s%s * %d",
442 plus, dl->decl.array_max,
443 ptr->length);
444 else
445 s_print(ptemp, "%s%s", plus,
446 dl->decl.array_max);
447
448 /* now concatenate to sizestr !!!! */
449 if (sizestr == NULL)
450 sizestr = strdup(ptemp);
451 else{
452 sizestr = realloc(sizestr,
453 strlen(sizestr)
454 +strlen(ptemp)+1);
455 if (sizestr == NULL){
456 f_print(stderr,
457 "Fatal error : no memory\n");
458 crash();
459 };
460 sizestr = strcat(sizestr, ptemp);
461 /* build up length of array */
462 }
463 }
464 } else {
465 if (i > 0)
466 if (sizestr == NULL && size < inline){
467 /*
468 * don't expand into inline code
469 * if size < inline
470 */
471 while (cur != dl){
472 print_stat(indent + 1, &cur->decl);
473 cur = cur->next;
474 }
475 } else {
476 /* were already looking at a xdr_inlineable structure */
477 tabify(fout, indent + 1);
478 if (sizestr == NULL)
479 f_print(fout, "buf = XDR_INLINE(xdrs, %d * BYTES_PER_XDR_UNIT);",
480 size);
481 else
482 if (size == 0)
483 f_print(fout,
484 "buf = XDR_INLINE(xdrs, (%s) * BYTES_PER_XDR_UNIT);",
485 sizestr);
486 else
487 f_print(fout,
488 "buf = XDR_INLINE(xdrs, (%d + (%s)) * BYTES_PER_XDR_UNIT);",
489 size, sizestr);
490
491 f_print(fout, "\n");
492 tabify(fout, indent + 1);
493 f_print(fout,
494 "if (buf == NULL) {\n");
495
496 psav = cur;
497 while (cur != dl){
498 print_stat(indent + 2, &cur->decl);
499 cur = cur->next;
500 }
501
502 f_print(fout, "\n\t\t} else {\n");
503
504 cur = psav;
505 while (cur != dl){
506 emit_inline(indent + 2, &cur->decl, flag);
507 cur = cur->next;
508 }
509
510 tabify(fout, indent + 1);
511 f_print(fout, "}\n");
512 }
513 size = 0;
514 i = 0;
515 sizestr = NULL;
516 print_stat(indent + 1, &dl->decl);
517 }
518 }
519
520 if (i > 0)
521 if (sizestr == NULL && size < inline){
522 /* don't expand into inline code if size < inline */
523 while (cur != dl){
524 print_stat(indent + 1, &cur->decl);
525 cur = cur->next;
526 }
527 } else {
528 /* were already looking at a xdr_inlineable structure */
529 if (sizestr == NULL)
530 f_print(fout, "\t\tbuf = XDR_INLINE(xdrs, %d * BYTES_PER_XDR_UNIT);",
531 size);
532 else
533 if (size == 0)
534 f_print(fout,
535 "\t\tbuf = XDR_INLINE(xdrs, (%s) * BYTES_PER_XDR_UNIT);",
536 sizestr);
537 else
538 f_print(fout,
539 "\t\tbuf = XDR_INLINE(xdrs, (%d + (%s)) * BYTES_PER_XDR_UNIT);",
540 size, sizestr);
541
542 f_print(fout, "\n\t\tif (buf == NULL) {\n");
543 psav = cur;
544 while (cur != NULL){
545 print_stat(indent + 2, &cur->decl);
546 cur = cur->next;
547 }
548 f_print(fout, "\t\t} else {\n");
549
550 cur = psav;
551 while (cur != dl){
552 emit_inline(indent + 2, &cur->decl, flag);
553 cur = cur->next;
554 }
555 f_print(fout, "\t\t}\n");
556 }
557}
558
556static
559static void
560emit_struct(def)
561 definition *def;
562{
563 decl_list *dl;
561 int i, j, size, flag;
564 int j, size, flag;
565 bas_type *ptr;
566 int can_inline;
567
568 if (inline == 0) {
569 /* No xdr_inlining at all */
570 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
571 print_stat(1, &dl->decl);
572 return;
573 }
574
575 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
576 if (dl->decl.rel == REL_VECTOR){
577 f_print(fout, "\tint i;\n");
578 break;
579 }
580
581 size = 0;
582 can_inline = 0;
583 /*
584 * Make a first pass and see if inling is possible.
585 */
586 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
587 if ((dl->decl.prefix == NULL) &&
588 ((ptr = find_type(dl->decl.type)) != NULL) &&
589 ((dl->decl.rel == REL_ALIAS)||
590 (dl->decl.rel == REL_VECTOR))){
591 if (dl->decl.rel == REL_ALIAS)
592 size += ptr->length;
593 else {
594 can_inline = 1;
595 break; /* can be inlined */
596 }
597 } else {
598 if (size >= inline){
599 can_inline = 1;
600 break; /* can be inlined */
601 }
602 size = 0;
603 }
604 if (size >= inline)
605 can_inline = 1;
606
607 if (can_inline == 0){ /* can not inline, drop back to old mode */
608 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
609 print_stat(1, &dl->decl);
610 return;
611 }
612
613 flag = PUT;
614 for (j = 0; j < 2; j++){
615 inline_struct(def, flag);
616 if (flag == PUT)
617 flag = GET;
618 }
619
620 f_print(fout, "\t\treturn (TRUE);\n\t}\n\n");
621
622 /* now take care of XDR_FREE case */
623
624 for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
625 print_stat(1, &dl->decl);
626
627}
628
626static
629static void
630emit_typedef(def)
631 definition *def;
632{
633 char *prefix = def->def.ty.old_prefix;
634 char *type = def->def.ty.old_type;
635 char *amax = def->def.ty.array_max;
636 relation rel = def->def.ty.rel;
637
638 print_ifstat(1, prefix, type, rel, amax, "objp", def->def_name);
639}
640
638static
641static void
642print_stat(indent, dec)
643 int indent;
644 declaration *dec;
645{
646 char *prefix = dec->prefix;
647 char *type = dec->type;
648 char *amax = dec->array_max;
649 relation rel = dec->rel;
650 char name[256];
651
652 if (isvectordef(type, rel)) {
653 s_print(name, "objp->%s", dec->name);
654 } else {
655 s_print(name, "&objp->%s", dec->name);
656 }
657 print_ifstat(indent, prefix, type, rel, amax, name, dec->name);
658}
659
660
661char *upcase ();
662
663static void
664emit_inline(indent, decl, flag)
665int indent;
666declaration *decl;
667int flag;
668{
669 switch (decl->rel) {
670 case REL_ALIAS :
671 emit_single_in_line(indent, decl, flag, REL_ALIAS);
672 break;
673 case REL_VECTOR :
674 tabify(fout, indent);
675 f_print(fout, "{\n");
676 tabify(fout, indent + 1);
677 f_print(fout, "register %s *genp;\n\n", decl->type);
678 tabify(fout, indent + 1);
679 f_print(fout,
680 "for (i = 0, genp = objp->%s;\n", decl->name);
681 tabify(fout, indent + 2);
682 f_print(fout, "i < %s; i++) {\n", decl->array_max);
683 emit_single_in_line(indent + 2, decl, flag, REL_VECTOR);
684 tabify(fout, indent + 1);
685 f_print(fout, "}\n");
686 tabify(fout, indent);
687 f_print(fout, "}\n");
688 default:
689 }
690}
691
692static void
693emit_single_in_line(indent, decl, flag, rel)
694int indent;
695declaration *decl;
696int flag;
697relation rel;
698{
699 char *upp_case;
700 int freed = 0;
701
702 tabify(fout, indent);
703 if (flag == PUT)
704 f_print(fout, "IXDR_PUT_");
705 else
706 if (rel == REL_ALIAS)
707 f_print(fout, "objp->%s = IXDR_GET_", decl->name);
708 else
709 f_print(fout, "*genp++ = IXDR_GET_");
710
711 upp_case = upcase(decl->type);
712
713 /* hack - XX */
714 if (strcmp(upp_case, "INT") == 0)
715 {
716 free(upp_case);
717 freed = 1;
718 upp_case = "LONG";
719 }
720
721 if (strcmp(upp_case, "U_INT") == 0)
722 {
723 free(upp_case);
724 freed = 1;
725 upp_case = "U_LONG";
726 }
727 if (flag == PUT)
728 if (rel == REL_ALIAS)
729 f_print(fout,
730 "%s(buf, objp->%s);\n", upp_case, decl->name);
731 else
732 f_print(fout, "%s(buf, *genp++);\n", upp_case);
733
734 else
735 f_print(fout, "%s(buf);\n", upp_case);
736 if (!freed)
737 free(upp_case);
738}
739
740char *upcase(str)
741char *str;
742{
743 char *ptr, *hptr;
744
745 ptr = (char *)malloc(strlen(str)+1);
746 if (ptr == (char *) NULL)
747 {
748 f_print(stderr, "malloc failed\n");
749 exit(1);
750 };
751
752 hptr = ptr;
753 while (*str != '\0')
754 *ptr++ = toupper(*str++);
755
756 *ptr = '\0';
757 return (hptr);
758}