1 | /* $NetBSD: input.c,v 1.39 2003/08/07 09:05:32 agc Exp $ */
|
---|
2 |
|
---|
3 | /*-
|
---|
4 | * Copyright (c) 1991, 1993
|
---|
5 | * The Regents of the University of California. All rights reserved.
|
---|
6 | *
|
---|
7 | * This code is derived from software contributed to Berkeley by
|
---|
8 | * Kenneth Almquist.
|
---|
9 | *
|
---|
10 | * Redistribution and use in source and binary forms, with or without
|
---|
11 | * modification, are permitted provided that the following conditions
|
---|
12 | * are met:
|
---|
13 | * 1. Redistributions of source code must retain the above copyright
|
---|
14 | * notice, this list of conditions and the following disclaimer.
|
---|
15 | * 2. Redistributions in binary form must reproduce the above copyright
|
---|
16 | * notice, this list of conditions and the following disclaimer in the
|
---|
17 | * documentation and/or other materials provided with the distribution.
|
---|
18 | * 3. Neither the name of the University nor the names of its contributors
|
---|
19 | * may be used to endorse or promote products derived from this software
|
---|
20 | * without specific prior written permission.
|
---|
21 | *
|
---|
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
---|
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
---|
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
---|
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
---|
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
---|
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
---|
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
---|
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
---|
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
---|
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
---|
32 | * SUCH DAMAGE.
|
---|
33 | */
|
---|
34 |
|
---|
35 | #ifdef HAVE_SYS_CDEFS_H
|
---|
36 | #include <sys/cdefs.h>
|
---|
37 | #endif
|
---|
38 | #ifndef lint
|
---|
39 | #if 0
|
---|
40 | static char sccsid[] = "@(#)input.c 8.3 (Berkeley) 6/9/95";
|
---|
41 | #else
|
---|
42 | __RCSID("$NetBSD: input.c,v 1.39 2003/08/07 09:05:32 agc Exp $");
|
---|
43 | #endif
|
---|
44 | #endif /* not lint */
|
---|
45 |
|
---|
46 | #include <stdio.h> /* defines BUFSIZ */
|
---|
47 | #include <fcntl.h>
|
---|
48 | #include <errno.h>
|
---|
49 | #include <unistd.h>
|
---|
50 | #include <stdlib.h>
|
---|
51 | #include <string.h>
|
---|
52 | #ifdef __sun__
|
---|
53 | #include <iso/limits_iso.h>
|
---|
54 | #endif
|
---|
55 |
|
---|
56 | /*
|
---|
57 | * This file implements the input routines used by the parser.
|
---|
58 | */
|
---|
59 |
|
---|
60 | #include "shell.h"
|
---|
61 | #include "redir.h"
|
---|
62 | #include "syntax.h"
|
---|
63 | #include "input.h"
|
---|
64 | #include "output.h"
|
---|
65 | #include "options.h"
|
---|
66 | #include "memalloc.h"
|
---|
67 | #include "error.h"
|
---|
68 | #include "alias.h"
|
---|
69 | #include "parser.h"
|
---|
70 | #include "myhistedit.h"
|
---|
71 | #include "shinstance.h"
|
---|
72 |
|
---|
73 | #define EOF_NLEFT -99 /* value of parsenleft when EOF pushed back */
|
---|
74 |
|
---|
75 | //MKINIT
|
---|
76 | //struct strpush {
|
---|
77 | // struct strpush *prev; /* preceding string on stack */
|
---|
78 | // char *prevstring;
|
---|
79 | // int prevnleft;
|
---|
80 | // int prevlleft;
|
---|
81 | // struct alias *ap; /* if push was associated with an alias */
|
---|
82 | //};
|
---|
83 | //
|
---|
84 | ///*
|
---|
85 | // * The parsefile structure pointed to by the global variable parsefile
|
---|
86 | // * contains information about the current file being read.
|
---|
87 | // */
|
---|
88 | //
|
---|
89 | //MKINIT
|
---|
90 | //struct parsefile {
|
---|
91 | // struct parsefile *prev; /* preceding file on stack */
|
---|
92 | // int linno; /* current line */
|
---|
93 | // int fd; /* file descriptor (or -1 if string) */
|
---|
94 | // int nleft; /* number of chars left in this line */
|
---|
95 | // int lleft; /* number of chars left in this buffer */
|
---|
96 | // char *nextc; /* next char in buffer */
|
---|
97 | // char *buf; /* input buffer */
|
---|
98 | // struct strpush *strpush; /* for pushing strings at this level */
|
---|
99 | // struct strpush basestrpush; /* so pushing one is fast */
|
---|
100 | //};
|
---|
101 | //
|
---|
102 | //
|
---|
103 | //int plinno = 1; /* input line number */
|
---|
104 | //int parsenleft; /* copy of parsefile->nleft */
|
---|
105 | //MKINIT int parselleft; /* copy of parsefile->lleft */
|
---|
106 | //char *parsenextc; /* copy of parsefile->nextc */
|
---|
107 | //MKINIT struct parsefile basepf; /* top level input file */
|
---|
108 | //MKINIT char basebuf[BUFSIZ]; /* buffer for top level input file */
|
---|
109 | //struct parsefile *parsefile = &basepf; /* current input file */
|
---|
110 | //int init_editline = 0; /* editline library initialized? */
|
---|
111 | //int whichprompt; /* 1 == PS1, 2 == PS2 */
|
---|
112 | //
|
---|
113 | //#ifndef SMALL
|
---|
114 | //EditLine *el; /* cookie for editline package */
|
---|
115 | //#endif
|
---|
116 |
|
---|
117 | STATIC void pushfile(shinstance *psh);
|
---|
118 | static int preadfd(shinstance *psh);
|
---|
119 |
|
---|
120 | #ifdef mkinit
|
---|
121 | INCLUDE <stdio.h>
|
---|
122 | INCLUDE "input.h"
|
---|
123 | INCLUDE "error.h"
|
---|
124 |
|
---|
125 | INIT {
|
---|
126 | psh->basepf.nextc = psh->basepf.buf = psh->basebuf;
|
---|
127 | }
|
---|
128 |
|
---|
129 | RESET {
|
---|
130 | if (psh->exception != EXSHELLPROC)
|
---|
131 | psh->parselleft = psh->parsenleft = 0; /* clear input buffer */
|
---|
132 | popallfiles(psh);
|
---|
133 | }
|
---|
134 |
|
---|
135 | SHELLPROC {
|
---|
136 | popallfiles(psh);
|
---|
137 | }
|
---|
138 | #endif
|
---|
139 |
|
---|
140 |
|
---|
141 | /*
|
---|
142 | * Read a line from the script.
|
---|
143 | */
|
---|
144 |
|
---|
145 | char *
|
---|
146 | pfgets(shinstance *psh, char *line, int len)
|
---|
147 | {
|
---|
148 | char *p = line;
|
---|
149 | int nleft = len;
|
---|
150 | int c;
|
---|
151 |
|
---|
152 | while (--nleft > 0) {
|
---|
153 | c = pgetc_macro(psh);
|
---|
154 | if (c == PEOF) {
|
---|
155 | if (p == line)
|
---|
156 | return NULL;
|
---|
157 | break;
|
---|
158 | }
|
---|
159 | *p++ = c;
|
---|
160 | if (c == '\n')
|
---|
161 | break;
|
---|
162 | }
|
---|
163 | *p = '\0';
|
---|
164 | return line;
|
---|
165 | }
|
---|
166 |
|
---|
167 |
|
---|
168 |
|
---|
169 | /*
|
---|
170 | * Read a character from the script, returning PEOF on end of file.
|
---|
171 | * Nul characters in the input are silently discarded.
|
---|
172 | */
|
---|
173 |
|
---|
174 | int
|
---|
175 | pgetc(shinstance *psh)
|
---|
176 | {
|
---|
177 | return pgetc_macro(psh);
|
---|
178 | }
|
---|
179 |
|
---|
180 |
|
---|
181 | static int
|
---|
182 | preadfd(shinstance *psh)
|
---|
183 | {
|
---|
184 | int nr;
|
---|
185 | char *buf = psh->parsefile->buf;
|
---|
186 | psh->parsenextc = buf;
|
---|
187 |
|
---|
188 | retry:
|
---|
189 | #ifndef SMALL
|
---|
190 | if (psh->parsefile->fd == 0 && psh->el) {
|
---|
191 | static const char *rl_cp;
|
---|
192 | static int el_len;
|
---|
193 |
|
---|
194 | if (rl_cp == NULL)
|
---|
195 | rl_cp = el_gets(psh->el, &el_len);
|
---|
196 | if (rl_cp == NULL)
|
---|
197 | nr = 0;
|
---|
198 | else {
|
---|
199 | nr = el_len;
|
---|
200 | if (nr > BUFSIZ - 8)
|
---|
201 | nr = BUFSIZ - 8;
|
---|
202 | memcpy(buf, rl_cp, nr);
|
---|
203 | if (nr != el_len) {
|
---|
204 | el_len -= nr;
|
---|
205 | rl_cp += nr;
|
---|
206 | } else
|
---|
207 | rl_cp = 0;
|
---|
208 | }
|
---|
209 |
|
---|
210 | } else
|
---|
211 | #endif
|
---|
212 | nr = shfile_read(&psh->fdtab, psh->parsefile->fd, buf, BUFSIZ - 8);
|
---|
213 |
|
---|
214 |
|
---|
215 | if (nr <= 0) {
|
---|
216 | if (nr < 0) {
|
---|
217 | if (errno == EINTR)
|
---|
218 | goto retry;
|
---|
219 | if (psh->parsefile->fd == 0 && errno == EWOULDBLOCK) {
|
---|
220 | int flags = shfile_fcntl(&psh->fdtab, 0, F_GETFL, 0);
|
---|
221 | if (flags >= 0 && flags & O_NONBLOCK) {
|
---|
222 | flags &=~ O_NONBLOCK;
|
---|
223 | if (shfile_fcntl(&psh->fdtab, 0, F_SETFL, flags) >= 0) {
|
---|
224 | out2str(psh, "sh: turning off NDELAY mode\n");
|
---|
225 | goto retry;
|
---|
226 | }
|
---|
227 | }
|
---|
228 | }
|
---|
229 | }
|
---|
230 | nr = -1;
|
---|
231 | }
|
---|
232 | return nr;
|
---|
233 | }
|
---|
234 |
|
---|
235 | /*
|
---|
236 | * Refill the input buffer and return the next input character:
|
---|
237 | *
|
---|
238 | * 1) If a string was pushed back on the input, pop it;
|
---|
239 | * 2) If an EOF was pushed back (parsenleft == EOF_NLEFT) or we are reading
|
---|
240 | * from a string so we can't refill the buffer, return EOF.
|
---|
241 | * 3) If the is more stuff in this buffer, use it else call read to fill it.
|
---|
242 | * 4) Process input up to the next newline, deleting nul characters.
|
---|
243 | */
|
---|
244 |
|
---|
245 | int
|
---|
246 | preadbuffer(shinstance *psh)
|
---|
247 | {
|
---|
248 | char *p, *q;
|
---|
249 | int more;
|
---|
250 | int something;
|
---|
251 | char savec;
|
---|
252 |
|
---|
253 | if (psh->parsefile->strpush) {
|
---|
254 | popstring(psh);
|
---|
255 | if (--psh->parsenleft >= 0)
|
---|
256 | return (*psh->parsenextc++);
|
---|
257 | }
|
---|
258 | if (psh->parsenleft == EOF_NLEFT || psh->parsefile->buf == NULL)
|
---|
259 | return PEOF;
|
---|
260 | flushout(&psh->output);
|
---|
261 | flushout(&psh->errout);
|
---|
262 |
|
---|
263 | again:
|
---|
264 | if (psh->parselleft <= 0) {
|
---|
265 | if ((psh->parselleft = preadfd(psh)) == -1) {
|
---|
266 | psh->parselleft = psh->parsenleft = EOF_NLEFT;
|
---|
267 | return PEOF;
|
---|
268 | }
|
---|
269 | }
|
---|
270 |
|
---|
271 | q = p = psh->parsenextc;
|
---|
272 |
|
---|
273 | /* delete nul characters */
|
---|
274 | something = 0;
|
---|
275 | for (more = 1; more;) {
|
---|
276 | switch (*p) {
|
---|
277 | case '\0':
|
---|
278 | p++; /* Skip nul */
|
---|
279 | goto check;
|
---|
280 |
|
---|
281 | case '\t':
|
---|
282 | case ' ':
|
---|
283 | break;
|
---|
284 |
|
---|
285 | case '\n':
|
---|
286 | psh->parsenleft = (int)(q - psh->parsenextc);
|
---|
287 | more = 0; /* Stop processing here */
|
---|
288 | break;
|
---|
289 |
|
---|
290 | default:
|
---|
291 | something = 1;
|
---|
292 | break;
|
---|
293 | }
|
---|
294 |
|
---|
295 | *q++ = *p++;
|
---|
296 | check:
|
---|
297 | if (--psh->parselleft <= 0) {
|
---|
298 | psh->parsenleft = (int)(q - psh->parsenextc - 1);
|
---|
299 | if (psh->parsenleft < 0)
|
---|
300 | goto again;
|
---|
301 | *q = '\0';
|
---|
302 | more = 0;
|
---|
303 | }
|
---|
304 | }
|
---|
305 |
|
---|
306 | savec = *q;
|
---|
307 | *q = '\0';
|
---|
308 |
|
---|
309 | #ifndef SMALL
|
---|
310 | if (psh->parsefile->fd == 0 && hist && something) {
|
---|
311 | HistEvent he;
|
---|
312 | INTOFF;
|
---|
313 | history(hist, &he, psh->whichprompt == 1? H_ENTER : H_APPEND,
|
---|
314 | psh->parsenextc);
|
---|
315 | INTON;
|
---|
316 | }
|
---|
317 | #endif
|
---|
318 |
|
---|
319 | if (vflag(psh)) {
|
---|
320 | out2str(psh, psh->parsenextc);
|
---|
321 | flushout(psh->out2);
|
---|
322 | }
|
---|
323 |
|
---|
324 | *q = savec;
|
---|
325 |
|
---|
326 | return *psh->parsenextc++;
|
---|
327 | }
|
---|
328 |
|
---|
329 | /*
|
---|
330 | * Undo the last call to pgetc. Only one character may be pushed back.
|
---|
331 | * PEOF may be pushed back.
|
---|
332 | */
|
---|
333 |
|
---|
334 | void
|
---|
335 | pungetc(shinstance *psh)
|
---|
336 | {
|
---|
337 | psh->parsenleft++;
|
---|
338 | psh->parsenextc--;
|
---|
339 | }
|
---|
340 |
|
---|
341 | /*
|
---|
342 | * Push a string back onto the input at this current parsefile level.
|
---|
343 | * We handle aliases this way.
|
---|
344 | */
|
---|
345 | void
|
---|
346 | pushstring(shinstance *psh, char *s, size_t len, void *ap)
|
---|
347 | {
|
---|
348 | struct strpush *sp;
|
---|
349 |
|
---|
350 | INTOFF;
|
---|
351 | /*dprintf("*** calling pushstring: %s, %d\n", s, len);*/
|
---|
352 | if (psh->parsefile->strpush) {
|
---|
353 | sp = ckmalloc(sizeof (struct strpush));
|
---|
354 | sp->prev = psh->parsefile->strpush;
|
---|
355 | psh->parsefile->strpush = sp;
|
---|
356 | } else
|
---|
357 | sp = psh->parsefile->strpush = &(psh->parsefile->basestrpush);
|
---|
358 | sp->prevstring = psh->parsenextc;
|
---|
359 | sp->prevnleft = psh->parsenleft;
|
---|
360 | sp->prevlleft = psh->parselleft;
|
---|
361 | sp->ap = (struct alias *)ap;
|
---|
362 | if (ap)
|
---|
363 | ((struct alias *)ap)->flag |= ALIASINUSE;
|
---|
364 | psh->parsenextc = s;
|
---|
365 | psh->parsenleft = (int)len;
|
---|
366 | INTON;
|
---|
367 | }
|
---|
368 |
|
---|
369 | void
|
---|
370 | popstring(shinstance *psh)
|
---|
371 | {
|
---|
372 | struct strpush *sp = psh->parsefile->strpush;
|
---|
373 |
|
---|
374 | INTOFF;
|
---|
375 | psh->parsenextc = sp->prevstring;
|
---|
376 | psh->parsenleft = sp->prevnleft;
|
---|
377 | psh->parselleft = sp->prevlleft;
|
---|
378 | /*dprintf("*** calling popstring: restoring to '%s'\n", psh->parsenextc);*/
|
---|
379 | if (sp->ap)
|
---|
380 | sp->ap->flag &= ~ALIASINUSE;
|
---|
381 | psh->parsefile->strpush = sp->prev;
|
---|
382 | if (sp != &(psh->parsefile->basestrpush))
|
---|
383 | ckfree(sp);
|
---|
384 | INTON;
|
---|
385 | }
|
---|
386 |
|
---|
387 | /*
|
---|
388 | * Set the input to take input from a file. If push is set, push the
|
---|
389 | * old input onto the stack first.
|
---|
390 | */
|
---|
391 |
|
---|
392 | void
|
---|
393 | setinputfile(shinstance *psh, const char *fname, int push)
|
---|
394 | {
|
---|
395 | int fd;
|
---|
396 | int fd2;
|
---|
397 |
|
---|
398 | INTOFF;
|
---|
399 | /** @todo shfile fixme */
|
---|
400 | if ((fd = shfile_open(&psh->fdtab, fname, O_RDONLY)) < 0)
|
---|
401 | error(psh, "Can't open %s", fname);
|
---|
402 | if (fd < 10) {
|
---|
403 | fd2 = copyfd(psh, fd, 10);
|
---|
404 | shfile_close(&psh->fdtab, fd);
|
---|
405 | if (fd2 < 0)
|
---|
406 | error(psh, "Out of file descriptors");
|
---|
407 | fd = fd2;
|
---|
408 | }
|
---|
409 | setinputfd(psh, fd, push);
|
---|
410 | INTON;
|
---|
411 | }
|
---|
412 |
|
---|
413 |
|
---|
414 | /*
|
---|
415 | * Like setinputfile, but takes an open file descriptor. Call this with
|
---|
416 | * interrupts off.
|
---|
417 | */
|
---|
418 |
|
---|
419 | void
|
---|
420 | setinputfd(shinstance *psh, int fd, int push)
|
---|
421 | {
|
---|
422 | (void) shfile_fcntl(&psh->fdtab, fd, F_SETFD, FD_CLOEXEC);
|
---|
423 | if (push) {
|
---|
424 | pushfile(psh);
|
---|
425 | psh->parsefile->buf = ckmalloc(BUFSIZ);
|
---|
426 | }
|
---|
427 | if (psh->parsefile->fd > 0)
|
---|
428 | shfile_close(&psh->fdtab, psh->parsefile->fd);
|
---|
429 | psh->parsefile->fd = fd;
|
---|
430 | if (psh->parsefile->buf == NULL)
|
---|
431 | psh->parsefile->buf = ckmalloc(BUFSIZ);
|
---|
432 | psh->parselleft = psh->parsenleft = 0;
|
---|
433 | psh->plinno = 1;
|
---|
434 | }
|
---|
435 |
|
---|
436 |
|
---|
437 | /*
|
---|
438 | * Like setinputfile, but takes input from a string.
|
---|
439 | */
|
---|
440 |
|
---|
441 | void
|
---|
442 | setinputstring(shinstance *psh, char *string, int push)
|
---|
443 | {
|
---|
444 | INTOFF;
|
---|
445 | if (push)
|
---|
446 | pushfile(psh);
|
---|
447 | psh->parsenextc = string;
|
---|
448 | psh->parselleft = psh->parsenleft = (int)strlen(string);
|
---|
449 | psh->parsefile->buf = NULL;
|
---|
450 | psh->plinno = 1;
|
---|
451 | INTON;
|
---|
452 | }
|
---|
453 |
|
---|
454 |
|
---|
455 |
|
---|
456 | /*
|
---|
457 | * To handle the "." command, a stack of input files is used. Pushfile
|
---|
458 | * adds a new entry to the stack and popfile restores the previous level.
|
---|
459 | */
|
---|
460 |
|
---|
461 | STATIC void
|
---|
462 | pushfile(shinstance *psh)
|
---|
463 | {
|
---|
464 | struct parsefile *pf;
|
---|
465 |
|
---|
466 | psh->parsefile->nleft = psh->parsenleft;
|
---|
467 | psh->parsefile->lleft = psh->parselleft;
|
---|
468 | psh->parsefile->nextc = psh->parsenextc;
|
---|
469 | psh->parsefile->linno = psh->plinno;
|
---|
470 | pf = (struct parsefile *)ckmalloc(sizeof (struct parsefile));
|
---|
471 | pf->prev = psh->parsefile;
|
---|
472 | pf->fd = -1;
|
---|
473 | pf->strpush = NULL;
|
---|
474 | pf->basestrpush.prev = NULL;
|
---|
475 | psh->parsefile = pf;
|
---|
476 | }
|
---|
477 |
|
---|
478 |
|
---|
479 | void
|
---|
480 | popfile(shinstance *psh)
|
---|
481 | {
|
---|
482 | struct parsefile *pf = psh->parsefile;
|
---|
483 |
|
---|
484 | INTOFF;
|
---|
485 | if (pf->fd >= 0)
|
---|
486 | shfile_close(&psh->fdtab, pf->fd);
|
---|
487 | if (pf->buf)
|
---|
488 | ckfree(pf->buf);
|
---|
489 | while (pf->strpush)
|
---|
490 | popstring(psh);
|
---|
491 | psh->parsefile = pf->prev;
|
---|
492 | ckfree(pf);
|
---|
493 | psh->parsenleft = psh->parsefile->nleft;
|
---|
494 | psh->parselleft = psh->parsefile->lleft;
|
---|
495 | psh->parsenextc = psh->parsefile->nextc;
|
---|
496 | psh->plinno = psh->parsefile->linno;
|
---|
497 | INTON;
|
---|
498 | }
|
---|
499 |
|
---|
500 |
|
---|
501 | /*
|
---|
502 | * Return to top level.
|
---|
503 | */
|
---|
504 |
|
---|
505 | void
|
---|
506 | popallfiles(shinstance *psh)
|
---|
507 | {
|
---|
508 | while (psh->parsefile != &psh->basepf)
|
---|
509 | popfile(psh);
|
---|
510 | }
|
---|
511 |
|
---|
512 |
|
---|
513 |
|
---|
514 | /*
|
---|
515 | * Close the file(s) that the shell is reading commands from. Called
|
---|
516 | * after a fork is done.
|
---|
517 | *
|
---|
518 | * Takes one arg, vfork, which tells it to not modify its global vars
|
---|
519 | * as it is still running in the parent.
|
---|
520 | *
|
---|
521 | * This code is (probably) unnecessary as the 'close on exec' flag is
|
---|
522 | * set and should be enough. In the vfork case it is definitely wrong
|
---|
523 | * to close the fds as another fork() may be done later to feed data
|
---|
524 | * from a 'here' document into a pipe and we don't want to close the
|
---|
525 | * pipe!
|
---|
526 | */
|
---|
527 |
|
---|
528 | void
|
---|
529 | closescript(shinstance *psh, int vforked)
|
---|
530 | {
|
---|
531 | if (vforked)
|
---|
532 | return;
|
---|
533 | popallfiles(psh);
|
---|
534 | if (psh->parsefile->fd > 0) {
|
---|
535 | shfile_close(&psh->fdtab, psh->parsefile->fd);
|
---|
536 | psh->parsefile->fd = 0;
|
---|
537 | }
|
---|
538 | }
|
---|