rpc_util.c revision 1.1.1.1 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 or with the express written consent of
8 * Sun Microsystems, Inc.
9 *
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 *
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
17 *
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
21 *
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
25 *
26 * Sun Microsystems, Inc.
27 * 2550 Garcia Avenue
28 * Mountain View, California 94043
29 */
30
31 #ifndef lint
32 static char sccsid[] = "@(#)rpc_util.c 1.11 89/02/22 (C) 1987 SMI";
33 #endif
34
35 /*
36 * rpc_util.c, Utility routines for the RPC protocol compiler
37 */
38 #include <stdio.h>
39 #include <ctype.h>
40 #include "rpc_scan.h"
41 #include "rpc_parse.h"
42 #include "rpc_util.h"
43
44 #define ARGEXT "argument"
45
46 char curline[MAXLINESIZE]; /* current read line */
47 char *where = curline; /* current point in line */
48 int linenum = 0; /* current line number */
49
50 char *infilename; /* input filename */
51
52 #define NFILES 7
53 char *outfiles[NFILES]; /* output file names */
54 int nfiles;
55
56 FILE *fout; /* file pointer of current output */
57 FILE *fin; /* file pointer of current input */
58
59 list *defined; /* list of defined things */
60
61 /*
62 * Reinitialize the world
63 */
64 reinitialize()
65 {
66 memset(curline, 0, MAXLINESIZE);
67 where = curline;
68 linenum = 0;
69 defined = NULL;
70 }
71
72 /*
73 * string equality
74 */
75 streq(a, b)
76 char *a;
77 char *b;
78 {
79 return (strcmp(a, b) == 0);
80 }
81
82 /*
83 * find a value in a list
84 */
85 definition *
86 findval(lst, val, cmp)
87 list *lst;
88 char *val;
89 int (*cmp) ();
90
91 {
92
93 for (; lst != NULL; lst = lst->next) {
94 if ((*cmp) (lst->val, val)) {
95 return (lst->val);
96 }
97 }
98 return (NULL);
99 }
100
101 /*
102 * store a value in a list
103 */
104 void
105 storeval(lstp, val)
106 list **lstp;
107 definition *val;
108 {
109 list **l;
110 list *lst;
111
112
113 for (l = lstp; *l != NULL; l = (list **) & (*l)->next);
114 lst = ALLOC(list);
115 lst->val = val;
116 lst->next = NULL;
117 *l = lst;
118 }
119
120 static
121 findit(def, type)
122 definition *def;
123 char *type;
124 {
125 return (streq(def->def_name, type));
126 }
127
128 static char *
129 fixit(type, orig)
130 char *type;
131 char *orig;
132 {
133 definition *def;
134
135 def = (definition *) FINDVAL(defined, type, findit);
136 if (def == NULL || def->def_kind != DEF_TYPEDEF) {
137 return (orig);
138 }
139 switch (def->def.ty.rel) {
140 case REL_VECTOR:
141 return (def->def.ty.old_type);
142 case REL_ALIAS:
143 return (fixit(def->def.ty.old_type, orig));
144 default:
145 return (orig);
146 }
147 }
148
149 char *
150 fixtype(type)
151 char *type;
152 {
153 return (fixit(type, type));
154 }
155
156 char *
157 stringfix(type)
158 char *type;
159 {
160 if (streq(type, "string")) {
161 return ("wrapstring");
162 } else {
163 return (type);
164 }
165 }
166
167 void
168 ptype(prefix, type, follow)
169 char *prefix;
170 char *type;
171 int follow;
172 {
173 if (prefix != NULL) {
174 if (streq(prefix, "enum")) {
175 f_print(fout, "enum ");
176 } else {
177 f_print(fout, "struct ");
178 }
179 }
180 if (streq(type, "bool")) {
181 f_print(fout, "bool_t ");
182 } else if (streq(type, "string")) {
183 f_print(fout, "char *");
184 } else {
185 f_print(fout, "%s ", follow ? fixtype(type) : type);
186 }
187 }
188
189 static
190 typedefed(def, type)
191 definition *def;
192 char *type;
193 {
194 if (def->def_kind != DEF_TYPEDEF || def->def.ty.old_prefix != NULL) {
195 return (0);
196 } else {
197 return (streq(def->def_name, type));
198 }
199 }
200
201 isvectordef(type, rel)
202 char *type;
203 relation rel;
204 {
205 definition *def;
206
207 for (;;) {
208 switch (rel) {
209 case REL_VECTOR:
210 return (!streq(type, "string"));
211 case REL_ARRAY:
212 return (0);
213 case REL_POINTER:
214 return (0);
215 case REL_ALIAS:
216 def = (definition *) FINDVAL(defined, type, typedefed);
217 if (def == NULL) {
218 return (0);
219 }
220 type = def->def.ty.old_type;
221 rel = def->def.ty.rel;
222 }
223 }
224 }
225
226 char *
227 locase(str)
228 char *str;
229 {
230 char c;
231 static char buf[100];
232 char *p = buf;
233
234 while (c = *str++) {
235 *p++ = (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c;
236 }
237 *p = 0;
238 return (buf);
239 }
240
241 void
242 pvname_svc(pname, vnum)
243 char *pname;
244 char *vnum;
245 {
246 f_print(fout, "%s_%s_svc", locase(pname), vnum);
247 }
248
249 void
250 pvname(pname, vnum)
251 char *pname;
252 char *vnum;
253 {
254 f_print(fout, "%s_%s", locase(pname), vnum);
255 }
256
257 /*
258 * print a useful (?) error message, and then die
259 */
260 void
261 error(msg)
262 char *msg;
263 {
264 printwhere();
265 f_print(stderr, "%s, line %d: ", infilename, linenum);
266 f_print(stderr, "%s\n", msg);
267 crash();
268 }
269
270 /*
271 * Something went wrong, unlink any files that we may have created and then
272 * die.
273 */
274 crash()
275 {
276 int i;
277
278 for (i = 0; i < nfiles; i++) {
279 (void) unlink(outfiles[i]);
280 }
281 exit(1);
282 }
283
284 void
285 record_open(file)
286 char *file;
287 {
288 if (nfiles < NFILES) {
289 outfiles[nfiles++] = file;
290 } else {
291 f_print(stderr, "too many files!\n");
292 crash();
293 }
294 }
295
296 static char expectbuf[100];
297 static char *toktostr();
298
299 /*
300 * error, token encountered was not the expected one
301 */
302 void
303 expected1(exp1)
304 tok_kind exp1;
305 {
306 s_print(expectbuf, "expected '%s'",
307 toktostr(exp1));
308 error(expectbuf);
309 }
310
311 /*
312 * error, token encountered was not one of two expected ones
313 */
314 void
315 expected2(exp1, exp2)
316 tok_kind exp1, exp2;
317 {
318 s_print(expectbuf, "expected '%s' or '%s'",
319 toktostr(exp1),
320 toktostr(exp2));
321 error(expectbuf);
322 }
323
324 /*
325 * error, token encountered was not one of 3 expected ones
326 */
327 void
328 expected3(exp1, exp2, exp3)
329 tok_kind exp1, exp2, exp3;
330 {
331 s_print(expectbuf, "expected '%s', '%s' or '%s'",
332 toktostr(exp1),
333 toktostr(exp2),
334 toktostr(exp3));
335 error(expectbuf);
336 }
337
338 void
339 tabify(f, tab)
340 FILE *f;
341 int tab;
342 {
343 while (tab--) {
344 (void) fputc('\t', f);
345 }
346 }
347
348
349 static token tokstrings[] = {
350 {TOK_IDENT, "identifier"},
351 {TOK_CONST, "const"},
352 {TOK_RPAREN, ")"},
353 {TOK_LPAREN, "("},
354 {TOK_RBRACE, "}"},
355 {TOK_LBRACE, "{"},
356 {TOK_LBRACKET, "["},
357 {TOK_RBRACKET, "]"},
358 {TOK_STAR, "*"},
359 {TOK_COMMA, ","},
360 {TOK_EQUAL, "="},
361 {TOK_COLON, ":"},
362 {TOK_SEMICOLON, ";"},
363 {TOK_UNION, "union"},
364 {TOK_STRUCT, "struct"},
365 {TOK_SWITCH, "switch"},
366 {TOK_CASE, "case"},
367 {TOK_DEFAULT, "default"},
368 {TOK_ENUM, "enum"},
369 {TOK_TYPEDEF, "typedef"},
370 {TOK_INT, "int"},
371 {TOK_SHORT, "short"},
372 {TOK_LONG, "long"},
373 {TOK_UNSIGNED, "unsigned"},
374 {TOK_DOUBLE, "double"},
375 {TOK_FLOAT, "float"},
376 {TOK_CHAR, "char"},
377 {TOK_STRING, "string"},
378 {TOK_OPAQUE, "opaque"},
379 {TOK_BOOL, "bool"},
380 {TOK_VOID, "void"},
381 {TOK_PROGRAM, "program"},
382 {TOK_VERSION, "version"},
383 {TOK_EOF, "??????"}
384 };
385
386 static char *
387 toktostr(kind)
388 tok_kind kind;
389 {
390 token *sp;
391
392 for (sp = tokstrings; sp->kind != TOK_EOF && sp->kind != kind; sp++);
393 return (sp->str);
394 }
395
396 static
397 printbuf()
398 {
399 char c;
400 int i;
401 int cnt;
402
403 # define TABSIZE 4
404
405 for (i = 0; c = curline[i]; i++) {
406 if (c == '\t') {
407 cnt = 8 - (i % TABSIZE);
408 c = ' ';
409 } else {
410 cnt = 1;
411 }
412 while (cnt--) {
413 (void) fputc(c, stderr);
414 }
415 }
416 }
417
418 static
419 printwhere()
420 {
421 int i;
422 char c;
423 int cnt;
424
425 printbuf();
426 for (i = 0; i < where - curline; i++) {
427 c = curline[i];
428 if (c == '\t') {
429 cnt = 8 - (i % TABSIZE);
430 } else {
431 cnt = 1;
432 }
433 while (cnt--) {
434 (void) fputc('^', stderr);
435 }
436 }
437 (void) fputc('\n', stderr);
438 }
439
440 char *
441 make_argname(pname, vname)
442 char *pname;
443 char *vname;
444 {
445 char *name;
446
447 name = malloc(strlen(pname) + strlen(vname) + strlen(ARGEXT) + 3);
448 if (!name) {
449 fprintf(stderr, "failed in malloc");
450 exit(1);
451 }
452 sprintf(name, "%s_%s_%s", locase(pname), vname, ARGEXT);
453 return(name);
454 }
455
456 bas_type *typ_list_h;
457 bas_type *typ_list_t;
458
459 add_type(len,type)
460 int len;
461 char *type;
462 {
463 bas_type *ptr;
464
465
466 if((ptr = (bas_type *) malloc(sizeof(bas_type)))== (bas_type *)NULL)
467 {
468 fprintf(stderr, "failed in malloc");
469 exit(1);
470 }
471
472 ptr->name=type;
473 ptr->length=len;
474 ptr->next=NULL;
475 if(typ_list_t == NULL)
476 {
477
478 typ_list_t=ptr;
479 typ_list_h=ptr;
480 }
481 else
482 {
483
484 typ_list_t->next=ptr;
485 typ_list_t=ptr;
486 }
487
488 }
489
490
491 bas_type *find_type(type)
492 char *type;
493 {
494 bas_type * ptr;
495
496 ptr=typ_list_h;
497
498
499 while(ptr != NULL)
500 {
501 if(strcmp(ptr->name,type) == 0)
502 return(ptr);
503 else
504 ptr=ptr->next;
505 };
506 return(NULL);
507 }
508
509