rpc_hout.c revision 17142 
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_hout.c	1.16	94/04/25 SMI"
31
32#ifndef lint
33static char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI";
34#endif
35
36/*
37 * rpc_hout.c, Header file outputter for the RPC protocol compiler
38 * Copyright (C) 1987, Sun Microsystems, Inc.
39 */
40#include <stdio.h>
41#include <ctype.h>
42#include "rpc_parse.h"
43#include "rpc_util.h"
44
45void storexdrfuncdecl __P(( char *, int ));
46static void pconstdef __P(( definition * ));
47static void pstructdef __P(( definition * ));
48static void puniondef __P(( definition * ));
49static void pprogramdef __P(( definition * ));
50static void pstructdef __P(( definition * ));
51static void penumdef __P(( definition * ));
52static void ptypedef __P(( definition * ));
53static void pdefine __P(( char *, char * ));
54static int undefined2 __P(( char *, char * ));
55static void parglist __P(( proc_list *, char * ));
56static void pprocdef __P(( proc_list *, version_list *, char *, int, int ));
57void pdeclaration __P(( char *, declaration *, int, char * ));
58
59static char RESULT[] = "clnt_res";
60
61
62/*
63 * Print the C-version of an xdr definition
64 */
65void
66print_datadef(def)
67	definition *def;
68{
69
70	if (def->def_kind == DEF_PROGRAM)  /* handle data only */
71		return;
72
73	if (def->def_kind != DEF_CONST) {
74		f_print(fout, "\n");
75	}
76	switch (def->def_kind) {
77	case DEF_STRUCT:
78		pstructdef(def);
79		break;
80	case DEF_UNION:
81		puniondef(def);
82		break;
83	case DEF_ENUM:
84		penumdef(def);
85		break;
86	case DEF_TYPEDEF:
87		ptypedef(def);
88		break;
89	case DEF_PROGRAM:
90		pprogramdef(def);
91		break;
92	case DEF_CONST:
93		pconstdef(def);
94		break;
95	}
96	if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
97	    storexdrfuncdecl(def->def_name,
98			     def->def_kind != DEF_TYPEDEF ||
99			     !isvectordef(def->def.ty.old_type,
100					  def->def.ty.rel));
101	}
102}
103
104
105void
106print_funcdef(def)
107	definition *def;
108{
109	switch (def->def_kind) {
110	case DEF_PROGRAM:
111		f_print(fout, "\n");
112		pprogramdef(def);
113		break;
114	default:
115	}
116}
117
118/* store away enough information to allow the XDR functions to be spat
119    out at the end of the file */
120
121void
122storexdrfuncdecl(name, pointerp)
123char *name;
124int pointerp;
125{
126	xdrfunc * xdrptr;
127
128	xdrptr = (xdrfunc *) malloc(sizeof (struct xdrfunc));
129
130	xdrptr->name = name;
131	xdrptr->pointerp = pointerp;
132	xdrptr->next = NULL;
133
134	if (xdrfunc_tail == NULL){
135		xdrfunc_head = xdrptr;
136		xdrfunc_tail = xdrptr;
137	} else {
138		xdrfunc_tail->next = xdrptr;
139		xdrfunc_tail = xdrptr;
140	}
141
142
143}
144
145void
146print_xdr_func_def(name, pointerp, i)
147char* name;
148int pointerp;
149int i;
150{
151	if (i == 2) {
152		f_print(fout, "extern bool_t xdr_%s();\n", name);
153		return;
154	}
155	else
156		f_print(fout, "extern  bool_t xdr_%s(XDR *, %s%s);\n", name,
157			name, pointerp ? "*" : "");
158
159
160}
161
162
163static void
164pconstdef(def)
165	definition *def;
166{
167	pdefine(def->def_name, def->def.co);
168}
169
170/* print out the definitions for the arguments of functions in the
171    header file
172*/
173static void
174pargdef(def)
175	definition *def;
176{
177	decl_list *l;
178	version_list *vers;
179	char *name;
180	proc_list *plist;
181
182
183	for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
184			for (plist = vers->procs; plist != NULL;
185			    plist = plist->next) {
186
187				if (!newstyle || plist->arg_num < 2) {
188					continue; /* old style or single args */
189				}
190				name = plist->args.argname;
191				f_print(fout, "struct %s {\n", name);
192				for (l = plist->args.decls;
193				    l != NULL; l = l->next) {
194					pdeclaration(name, &l->decl, 1,
195						     ";\n");
196				}
197				f_print(fout, "};\n");
198				f_print(fout, "typedef struct %s %s;\n",
199					name, name);
200				storexdrfuncdecl(name, 1);
201				f_print(fout, "\n");
202			}
203		}
204}
205
206
207static void
208pstructdef(def)
209	definition *def;
210{
211	decl_list *l;
212	char *name = def->def_name;
213
214	f_print(fout, "struct %s {\n", name);
215	for (l = def->def.st.decls; l != NULL; l = l->next) {
216		pdeclaration(name, &l->decl, 1, ";\n");
217	}
218	f_print(fout, "};\n");
219	f_print(fout, "typedef struct %s %s;\n", name, name);
220}
221
222static void
223puniondef(def)
224	definition *def;
225{
226	case_list *l;
227	char *name = def->def_name;
228	declaration *decl;
229
230	f_print(fout, "struct %s {\n", name);
231	decl = &def->def.un.enum_decl;
232	if (streq(decl->type, "bool")) {
233		f_print(fout, "\tbool_t %s;\n", decl->name);
234	} else {
235		f_print(fout, "\t%s %s;\n", decl->type, decl->name);
236	}
237	f_print(fout, "\tunion {\n");
238	for (l = def->def.un.cases; l != NULL; l = l->next) {
239	    if (l->contflag == 0)
240		pdeclaration(name, &l->case_decl, 2, ";\n");
241	}
242	decl = def->def.un.default_decl;
243	if (decl && !streq(decl->type, "void")) {
244		pdeclaration(name, decl, 2, ";\n");
245	}
246	f_print(fout, "\t} %s_u;\n", name);
247	f_print(fout, "};\n");
248	f_print(fout, "typedef struct %s %s;\n", name, name);
249}
250
251static void
252pdefine(name, num)
253	char *name;
254	char *num;
255{
256	f_print(fout, "#define\t%s %s\n", name, num);
257}
258
259static void
260puldefine(name, num)
261	char *name;
262	char *num;
263{
264	f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num);
265}
266
267static int
268define_printed(stop, start)
269	proc_list *stop;
270	version_list *start;
271{
272	version_list *vers;
273	proc_list *proc;
274
275	for (vers = start; vers != NULL; vers = vers->next) {
276		for (proc = vers->procs; proc != NULL; proc = proc->next) {
277			if (proc == stop) {
278				return (0);
279			} else if (streq(proc->proc_name, stop->proc_name)) {
280				return (1);
281			}
282		}
283	}
284	abort();
285	/* NOTREACHED */
286}
287
288static void
289pfreeprocdef(char * name, char *vers, int mode)
290{
291	f_print(fout, "extern int ");
292	pvname(name, vers);
293	if (mode == 1)
294		f_print(fout,"_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n");
295	else
296		f_print(fout,"_freeresult();\n");
297
298
299}
300
301static void
302pprogramdef(def)
303	definition *def;
304{
305	version_list *vers;
306	proc_list *proc;
307	int i;
308	char *ext;
309
310	pargdef(def);
311
312	puldefine(def->def_name, def->def.pr.prog_num);
313	for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
314		if (tblflag) {
315			f_print(fout,
316				"extern struct rpcgen_table %s_%s_table[];\n",
317				locase(def->def_name), vers->vers_num);
318			f_print(fout,
319				"extern %s_%s_nproc;\n",
320				locase(def->def_name), vers->vers_num);
321		}
322		puldefine(vers->vers_name, vers->vers_num);
323
324		/*
325		 * Print out 2 definitions, one for ANSI-C, another for
326		 * old K & R C
327		 */
328
329		if(!Cflag){
330			ext = "extern  ";
331			for (proc = vers->procs; proc != NULL;
332			     proc = proc->next) {
333				if (!define_printed(proc,
334						    def->def.pr.versions)) {
335					puldefine(proc->proc_name,
336						  proc->proc_num);
337				}
338				f_print(fout, "%s", ext);
339				pprocdef(proc, vers, NULL, 0, 2);
340
341				if (mtflag) {
342					f_print(fout, "%s", ext);
343					pprocdef(proc, vers, NULL, 1, 2);
344				}
345			}
346			pfreeprocdef(def->def_name, vers->vers_num, 2);
347
348		} else {
349			for (i = 1; i < 3; i++){
350				if (i == 1){
351					f_print(fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n");
352					ext = "extern  ";
353				}else{
354					f_print(fout, "\n#else /* K&R C */\n");
355					ext = "extern  ";
356				}
357
358				for (proc = vers->procs; proc != NULL;
359				     proc = proc->next) {
360					if (!define_printed(proc,
361							    def->def.pr.versions)) {
362						puldefine(proc->proc_name,
363							  proc->proc_num);
364					}
365					f_print(fout, "%s", ext);
366					pprocdef(proc, vers, "CLIENT *", 0, i);
367					f_print(fout, "%s", ext);
368					pprocdef(proc, vers, "struct svc_req *", 1, i);
369				}
370			pfreeprocdef(def->def_name, vers->vers_num, i);
371			}
372			f_print(fout, "#endif /* K&R C */\n");
373		}
374	}
375}
376
377static void
378pprocdef(proc, vp, addargtype, server_p, mode)
379	proc_list *proc;
380	version_list *vp;
381	char* addargtype;
382	int server_p;
383	int mode;
384{
385	if (mtflag) {/* Print MT style stubs */
386		if (server_p)
387			f_print(fout, "bool_t ");
388		else
389			f_print(fout, "enum clnt_stat ");
390	} else {
391		ptype(proc->res_prefix, proc->res_type, 1);
392		f_print(fout, "* ");
393	}
394	if (server_p)
395		pvname_svc(proc->proc_name, vp->vers_num);
396	else
397		pvname(proc->proc_name, vp->vers_num);
398
399	/*
400	 *  mode  1 = ANSI-C, mode 2 = K&R C
401	 */
402	if ( mode == 1)
403		parglist(proc, addargtype);
404	else
405		f_print(fout, "();\n");
406}
407
408
409
410/* print out argument list of procedure */
411static void
412parglist(proc, addargtype)
413	proc_list *proc;
414    char* addargtype;
415{
416	decl_list *dl;
417
418	f_print(fout, "(");
419	if (proc->arg_num < 2 && newstyle &&
420	    streq(proc->args.decls->decl.type, "void")) {
421		/* 0 argument in new style:  do nothing*/
422	}
423	else {
424		for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
425			ptype(dl->decl.prefix, dl->decl.type, 1);
426			if (!newstyle)
427				f_print(fout, "*");
428			/* old style passes by reference */
429			f_print(fout, ", ");
430		}
431	}
432
433	if (mtflag)  {
434		ptype(proc->res_prefix, proc->res_type, 1);
435		f_print(fout, "*, ");
436	}
437
438	f_print(fout, "%s);\n", addargtype);
439
440}
441
442static void
443penumdef(def)
444	definition *def;
445{
446	char *name = def->def_name;
447	enumval_list *l;
448	char *last = NULL;
449	int count = 0;
450
451	f_print(fout, "enum %s {\n", name);
452	for (l = def->def.en.vals; l != NULL; l = l->next) {
453		f_print(fout, "\t%s", l->name);
454		if (l->assignment) {
455			f_print(fout, " = %s", l->assignment);
456			last = l->assignment;
457			count = 1;
458		} else {
459			if (last == NULL) {
460				f_print(fout, " = %d", count++);
461			} else {
462				f_print(fout, " = %s + %d", last, count++);
463			}
464		}
465		if (l->next)
466			f_print(fout, ",\n");
467		else
468			f_print(fout, "\n");
469	}
470	f_print(fout, "};\n");
471	f_print(fout, "typedef enum %s %s;\n", name, name);
472}
473
474static void
475ptypedef(def)
476	definition *def;
477{
478	char *name = def->def_name;
479	char *old = def->def.ty.old_type;
480	char prefix[8];	/* enough to contain "struct ", including NUL */
481	relation rel = def->def.ty.rel;
482
483
484	if (!streq(name, old)) {
485		if (streq(old, "string")) {
486			old = "char";
487			rel = REL_POINTER;
488		} else if (streq(old, "opaque")) {
489			old = "char";
490		} else if (streq(old, "bool")) {
491			old = "bool_t";
492		}
493		if (undefined2(old, name) && def->def.ty.old_prefix) {
494			s_print(prefix, "%s ", def->def.ty.old_prefix);
495		} else {
496			prefix[0] = 0;
497		}
498		f_print(fout, "typedef ");
499		switch (rel) {
500		case REL_ARRAY:
501			f_print(fout, "struct {\n");
502			f_print(fout, "\tu_int %s_len;\n", name);
503			f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
504			f_print(fout, "} %s", name);
505			break;
506		case REL_POINTER:
507			f_print(fout, "%s%s *%s", prefix, old, name);
508			break;
509		case REL_VECTOR:
510			f_print(fout, "%s%s %s[%s]", prefix, old, name,
511				def->def.ty.array_max);
512			break;
513		case REL_ALIAS:
514			f_print(fout, "%s%s %s", prefix, old, name);
515			break;
516		}
517		f_print(fout, ";\n");
518	}
519}
520
521void
522pdeclaration(name, dec, tab, separator)
523	char *name;
524	declaration *dec;
525	int tab;
526	char *separator;
527{
528	char buf[8];	/* enough to hold "struct ", include NUL */
529	char *prefix;
530	char *type;
531
532	if (streq(dec->type, "void")) {
533		return;
534	}
535	tabify(fout, tab);
536	if (streq(dec->type, name) && !dec->prefix) {
537		f_print(fout, "struct ");
538	}
539	if (streq(dec->type, "string")) {
540		f_print(fout, "char *%s", dec->name);
541	} else {
542		prefix = "";
543		if (streq(dec->type, "bool")) {
544			type = "bool_t";
545		} else if (streq(dec->type, "opaque")) {
546			type = "char";
547		} else {
548			if (dec->prefix) {
549				s_print(buf, "%s ", dec->prefix);
550				prefix = buf;
551			}
552			type = dec->type;
553		}
554		switch (dec->rel) {
555		case REL_ALIAS:
556			f_print(fout, "%s%s %s", prefix, type, dec->name);
557			break;
558		case REL_VECTOR:
559			f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
560				dec->array_max);
561			break;
562		case REL_POINTER:
563			f_print(fout, "%s%s *%s", prefix, type, dec->name);
564			break;
565		case REL_ARRAY:
566			f_print(fout, "struct {\n");
567			tabify(fout, tab);
568			f_print(fout, "\tu_int %s_len;\n", dec->name);
569			tabify(fout, tab);
570			f_print(fout,
571				"\t%s%s *%s_val;\n", prefix, type, dec->name);
572			tabify(fout, tab);
573			f_print(fout, "} %s", dec->name);
574			break;
575		}
576	}
577	f_print(fout, separator);
578}
579
580static int
581undefined2(type, stop)
582	char *type;
583	char *stop;
584{
585	list *l;
586	definition *def;
587
588	for (l = defined; l != NULL; l = l->next) {
589		def = (definition *) l->val;
590		if (def->def_kind != DEF_PROGRAM) {
591			if (streq(def->def_name, stop)) {
592				return (1);
593			} else if (streq(def->def_name, type)) {
594				return (0);
595			}
596		}
597	}
598	return (1);
599}
600