rpc_util.c revision 1.6 1 /* $NetBSD: rpc_util.c,v 1.6 1995/08/29 23:05:57 cgd Exp $ */
2 /*
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 or with the express written consent of
9 * Sun Microsystems, Inc.
10 *
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 *
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
18 *
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
22 *
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
26 *
27 * Sun Microsystems, Inc.
28 * 2550 Garcia Avenue
29 * Mountain View, California 94043
30 */
31
32 #ifndef lint
33 static char sccsid[] = "@(#)rpc_util.c 1.11 89/02/22 (C) 1987 SMI";
34 #endif
35
36 /*
37 * rpc_util.c, Utility routines for the RPC protocol compiler
38 */
39 #include <sys/cdefs.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <ctype.h>
44 #include "rpc_scan.h"
45 #include "rpc_parse.h"
46 #include "rpc_util.h"
47
48 #define ARGEXT "argument"
49
50 static void printwhere __P((void));
51
52 char curline[MAXLINESIZE]; /* current read line */
53 char *where = curline; /* current point in line */
54 int linenum = 0; /* current line number */
55
56 char *infilename; /* input filename */
57
58 #define NFILES 7
59 char *outfiles[NFILES]; /* output file names */
60 int nfiles;
61
62 FILE *fout; /* file pointer of current output */
63 FILE *fin; /* file pointer of current input */
64
65 list *defined; /* list of defined things */
66
67 /*
68 * Reinitialize the world
69 */
70 reinitialize()
71 {
72 memset(curline, 0, MAXLINESIZE);
73 where = curline;
74 linenum = 0;
75 defined = NULL;
76 }
77
78 /*
79 * string equality
80 */
81 streq(a, b)
82 char *a;
83 char *b;
84 {
85 return (strcmp(a, b) == 0);
86 }
87
88 /*
89 * find a value in a list
90 */
91 definition *
92 findval(lst, val, cmp)
93 list *lst;
94 char *val;
95 int (*cmp) ();
96
97 {
98
99 for (; lst != NULL; lst = lst->next) {
100 if ((*cmp) (lst->val, val)) {
101 return (lst->val);
102 }
103 }
104 return (NULL);
105 }
106
107 /*
108 * store a value in a list
109 */
110 void
111 storeval(lstp, val)
112 list **lstp;
113 definition *val;
114 {
115 list **l;
116 list *lst;
117
118
119 for (l = lstp; *l != NULL; l = (list **) & (*l)->next);
120 lst = ALLOC(list);
121 lst->val = val;
122 lst->next = NULL;
123 *l = lst;
124 }
125
126 static
127 findit(def, type)
128 definition *def;
129 char *type;
130 {
131 return (streq(def->def_name, type));
132 }
133
134 static char *
135 fixit(type, orig)
136 char *type;
137 char *orig;
138 {
139 definition *def;
140
141 def = (definition *) FINDVAL(defined, type, findit);
142 if (def == NULL || def->def_kind != DEF_TYPEDEF) {
143 return (orig);
144 }
145 switch (def->def.ty.rel) {
146 case REL_VECTOR:
147 return (def->def.ty.old_type);
148 case REL_ALIAS:
149 return (fixit(def->def.ty.old_type, orig));
150 default:
151 return (orig);
152 }
153 }
154
155 char *
156 fixtype(type)
157 char *type;
158 {
159 return (fixit(type, type));
160 }
161
162 char *
163 stringfix(type)
164 char *type;
165 {
166 if (streq(type, "string")) {
167 return ("wrapstring");
168 } else {
169 return (type);
170 }
171 }
172
173 void
174 ptype(prefix, type, follow)
175 char *prefix;
176 char *type;
177 int follow;
178 {
179 if (prefix != NULL) {
180 if (streq(prefix, "enum")) {
181 f_print(fout, "enum ");
182 } else {
183 f_print(fout, "struct ");
184 }
185 }
186 if (streq(type, "bool")) {
187 f_print(fout, "bool_t ");
188 } else if (streq(type, "string")) {
189 f_print(fout, "char *");
190 } else {
191 f_print(fout, "%s ", follow ? fixtype(type) : type);
192 }
193 }
194
195 static
196 typedefed(def, type)
197 definition *def;
198 char *type;
199 {
200 if (def->def_kind != DEF_TYPEDEF || def->def.ty.old_prefix != NULL) {
201 return (0);
202 } else {
203 return (streq(def->def_name, type));
204 }
205 }
206
207 isvectordef(type, rel)
208 char *type;
209 relation rel;
210 {
211 definition *def;
212
213 for (;;) {
214 switch (rel) {
215 case REL_VECTOR:
216 return (!streq(type, "string"));
217 case REL_ARRAY:
218 return (0);
219 case REL_POINTER:
220 return (0);
221 case REL_ALIAS:
222 def = (definition *) FINDVAL(defined, type, typedefed);
223 if (def == NULL) {
224 return (0);
225 }
226 type = def->def.ty.old_type;
227 rel = def->def.ty.rel;
228 }
229 }
230 }
231
232 char *
233 locase(str)
234 char *str;
235 {
236 char c;
237 static char buf[100];
238 char *p = buf;
239
240 while (c = *str++) {
241 *p++ = (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c;
242 }
243 *p = 0;
244 return (buf);
245 }
246
247 void
248 pvname_svc(pname, vnum)
249 char *pname;
250 char *vnum;
251 {
252 f_print(fout, "%s_%s_svc", locase(pname), vnum);
253 }
254
255 void
256 pvname(pname, vnum)
257 char *pname;
258 char *vnum;
259 {
260 f_print(fout, "%s_%s", locase(pname), vnum);
261 }
262
263 /*
264 * print a useful (?) error message, and then die
265 */
266 void
267 error(msg)
268 char *msg;
269 {
270 printwhere();
271 f_print(stderr, "%s, line %d: ", infilename, linenum);
272 f_print(stderr, "%s\n", msg);
273 crash();
274 }
275
276 /*
277 * Something went wrong, unlink any files that we may have created and then
278 * die.
279 */
280 crash()
281 {
282 int i;
283
284 for (i = 0; i < nfiles; i++) {
285 (void) unlink(outfiles[i]);
286 }
287 exit(1);
288 }
289
290 void
291 record_open(file)
292 char *file;
293 {
294 if (nfiles < NFILES) {
295 outfiles[nfiles++] = file;
296 } else {
297 f_print(stderr, "too many files!\n");
298 crash();
299 }
300 }
301
302 static char expectbuf[100];
303 static char *toktostr();
304
305 /*
306 * error, token encountered was not the expected one
307 */
308 void
309 expected1(exp1)
310 tok_kind exp1;
311 {
312 s_print(expectbuf, "expected '%s'",
313 toktostr(exp1));
314 error(expectbuf);
315 }
316
317 /*
318 * error, token encountered was not one of two expected ones
319 */
320 void
321 expected2(exp1, exp2)
322 tok_kind exp1, exp2;
323 {
324 s_print(expectbuf, "expected '%s' or '%s'",
325 toktostr(exp1),
326 toktostr(exp2));
327 error(expectbuf);
328 }
329
330 /*
331 * error, token encountered was not one of 3 expected ones
332 */
333 void
334 expected3(exp1, exp2, exp3)
335 tok_kind exp1, exp2, exp3;
336 {
337 s_print(expectbuf, "expected '%s', '%s' or '%s'",
338 toktostr(exp1),
339 toktostr(exp2),
340 toktostr(exp3));
341 error(expectbuf);
342 }
343
344 void
345 tabify(f, tab)
346 FILE *f;
347 int tab;
348 {
349 while (tab--) {
350 (void) fputc('\t', f);
351 }
352 }
353
354
355 static token tokstrings[] = {
356 {TOK_IDENT, "identifier"},
357 {TOK_CONST, "const"},
358 {TOK_RPAREN, ")"},
359 {TOK_LPAREN, "("},
360 {TOK_RBRACE, "}"},
361 {TOK_LBRACE, "{"},
362 {TOK_LBRACKET, "["},
363 {TOK_RBRACKET, "]"},
364 {TOK_STAR, "*"},
365 {TOK_COMMA, ","},
366 {TOK_EQUAL, "="},
367 {TOK_COLON, ":"},
368 {TOK_SEMICOLON, ";"},
369 {TOK_UNION, "union"},
370 {TOK_STRUCT, "struct"},
371 {TOK_SWITCH, "switch"},
372 {TOK_CASE, "case"},
373 {TOK_DEFAULT, "default"},
374 {TOK_ENUM, "enum"},
375 {TOK_TYPEDEF, "typedef"},
376 {TOK_INT, "int"},
377 {TOK_SHORT, "short"},
378 {TOK_LONG, "long"},
379 {TOK_UNSIGNED, "unsigned"},
380 {TOK_DOUBLE, "double"},
381 {TOK_FLOAT, "float"},
382 {TOK_CHAR, "char"},
383 {TOK_STRING, "string"},
384 {TOK_OPAQUE, "opaque"},
385 {TOK_BOOL, "bool"},
386 {TOK_VOID, "void"},
387 {TOK_PROGRAM, "program"},
388 {TOK_VERSION, "version"},
389 {TOK_EOF, "??????"}
390 };
391
392 static char *
393 toktostr(kind)
394 tok_kind kind;
395 {
396 token *sp;
397
398 for (sp = tokstrings; sp->kind != TOK_EOF && sp->kind != kind; sp++);
399 return (sp->str);
400 }
401
402 static
403 printbuf()
404 {
405 char c;
406 int i;
407 int cnt;
408
409 # define TABSIZE 4
410
411 for (i = 0; c = curline[i]; i++) {
412 if (c == '\t') {
413 cnt = 8 - (i % TABSIZE);
414 c = ' ';
415 } else {
416 cnt = 1;
417 }
418 while (cnt--) {
419 (void) fputc(c, stderr);
420 }
421 }
422 }
423
424 static void
425 printwhere()
426 {
427 int i;
428 char c;
429 int cnt;
430
431 printbuf();
432 for (i = 0; i < where - curline; i++) {
433 c = curline[i];
434 if (c == '\t') {
435 cnt = 8 - (i % TABSIZE);
436 } else {
437 cnt = 1;
438 }
439 while (cnt--) {
440 (void) fputc('^', stderr);
441 }
442 }
443 (void) fputc('\n', stderr);
444 }
445
446 char *
447 make_argname(pname, vname)
448 char *pname;
449 char *vname;
450 {
451 char *name;
452
453 name = (char *)malloc(strlen(pname) + strlen(vname) + strlen(ARGEXT) + 3);
454 if (!name) {
455 fprintf(stderr, "failed in malloc");
456 exit(1);
457 }
458 sprintf(name, "%s_%s_%s", locase(pname), vname, ARGEXT);
459 return(name);
460 }
461
462 bas_type *typ_list_h;
463 bas_type *typ_list_t;
464
465 void
466 add_type(len,type)
467 int len;
468 char *type;
469 {
470 bas_type *ptr;
471
472 if ((ptr = (bas_type *)malloc(sizeof(bas_type))) == (bas_type *)NULL) {
473 fprintf(stderr, "failed in malloc");
474 exit(1);
475 }
476
477 ptr->name=type;
478 ptr->length=len;
479 ptr->next=NULL;
480 if (typ_list_t == NULL) {
481 typ_list_t=ptr;
482 typ_list_h=ptr;
483 } else {
484 typ_list_t->next=ptr;
485 typ_list_t=ptr;
486 }
487 }
488
489 bas_type *
490 find_type(type)
491 char *type;
492 {
493 bas_type * ptr;
494
495 ptr=typ_list_h;
496
497
498 while (ptr != NULL) {
499 if (strcmp(ptr->name,type) == 0)
500 return(ptr);
501 else
502 ptr=ptr->next;
503 }
504 return(NULL);
505 }
506
507