xref: /dragonfly/sbin/restore/interactive.c (revision c309c6d4)
1 /*
2  * Copyright (c) 1985, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * @(#)interactive.c	8.5 (Berkeley) 5/1/95
30  * $FreeBSD: src/sbin/restore/interactive.c,v 1.8.2.1 2001/01/03 14:36:08 iedowse Exp $
31  */
32 
33 #include <sys/param.h>
34 #include <sys/stat.h>
35 
36 #include <vfs/ufs/dinode.h>
37 #include <vfs/ufs/dir.h>
38 #include <protocols/dumprestore.h>
39 
40 #include <setjmp.h>
41 #include <glob.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 
46 #include "restore.h"
47 #include "extern.h"
48 
49 /*
50  * Things to handle interruptions.
51  */
52 static int runshell;
53 static jmp_buf reset;
54 static char *nextarg = NULL;
55 
56 /*
57  * Structure and routines associated with listing directories.
58  */
59 struct afile {
60 	ufs1_ino_t fnum;	/* inode number of file */
61 	char	*fname;		/* file name */
62 	short	len;		/* name length */
63 	char	prefix;		/* prefix character */
64 	char	postfix;	/* postfix character */
65 };
66 struct arglist {
67 	int	freeglob;	/* glob structure needs to be freed */
68 	int	argcnt;		/* next globbed argument to return */
69 	glob_t	glob;		/* globbing information */
70 	char	*cmd;		/* the current command */
71 };
72 
73 static char	*copynext(char *, char *);
74 static int	 fcmp(const void *, const void *);
75 static void	 formatf(struct afile *, int);
76 static void	 getcmd(char *, char *, char *, size_t, struct arglist *);
77 struct dirent	*glob_readdir(RST_DIR *dirp);
78 static int	 glob_stat(const char *, struct stat *);
79 static void	 mkentry(const char *, struct direct *, struct afile *);
80 static void	 printlist(const char *, char *);
81 
82 /*
83  * Read and execute commands from the terminal.
84  */
85 void
runcmdshell(void)86 runcmdshell(void)
87 {
88 	struct entry *np;
89 	ufs1_ino_t ino;
90 	struct arglist arglist;
91 	char curdir[MAXPATHLEN];
92 	char name[MAXPATHLEN];
93 	char cmd[BUFSIZ];
94 
95 	arglist.freeglob = 0;
96 	arglist.argcnt = 0;
97 	arglist.glob.gl_flags = GLOB_ALTDIRFUNC;
98 	arglist.glob.gl_opendir = (void *)rst_opendir;
99 	arglist.glob.gl_readdir = (void *)glob_readdir;
100 	arglist.glob.gl_closedir = (void *)rst_closedir;
101 	arglist.glob.gl_lstat = glob_stat;
102 	arglist.glob.gl_stat = glob_stat;
103 	canon("/", curdir, sizeof(curdir));
104 loop:
105 	if (setjmp(reset) != 0) {
106 		if (arglist.freeglob != 0) {
107 			arglist.freeglob = 0;
108 			arglist.argcnt = 0;
109 			globfree(&arglist.glob);
110 		}
111 		nextarg = NULL;
112 		volno = 0;
113 	}
114 	runshell = 1;
115 	getcmd(curdir, cmd, name, sizeof(name), &arglist);
116 	switch (cmd[0]) {
117 	/*
118 	 * Add elements to the extraction list.
119 	 */
120 	case 'a':
121 		if (strncmp(cmd, "add", strlen(cmd)) != 0)
122 			goto bad;
123 		ino = dirlookup(name);
124 		if (ino == 0)
125 			break;
126 		if (mflag)
127 			pathcheck(name);
128 		treescan(name, ino, addfile);
129 		break;
130 	/*
131 	 * Change working directory.
132 	 */
133 	case 'c':
134 		if (strncmp(cmd, "cd", strlen(cmd)) != 0)
135 			goto bad;
136 		ino = dirlookup(name);
137 		if (ino == 0)
138 			break;
139 		if (inodetype(ino) == LEAF) {
140 			fprintf(stderr, "%s: not a directory\n", name);
141 			break;
142 		}
143 		strcpy(curdir, name);
144 		break;
145 	/*
146 	 * Delete elements from the extraction list.
147 	 */
148 	case 'd':
149 		if (strncmp(cmd, "delete", strlen(cmd)) != 0)
150 			goto bad;
151 		np = lookupname(name);
152 		if (np == NULL || (np->e_flags & NEW) == 0) {
153 			fprintf(stderr, "%s: not on extraction list\n", name);
154 			break;
155 		}
156 		treescan(name, np->e_ino, deletefile);
157 		break;
158 	/*
159 	 * Extract the requested list.
160 	 */
161 	case 'e':
162 		if (strncmp(cmd, "extract", strlen(cmd)) != 0)
163 			goto bad;
164 		createfiles();
165 		createlinks();
166 		setdirmodes(0);
167 		if (dflag)
168 			checkrestore();
169 		volno = 0;
170 		break;
171 	/*
172 	 * List available commands.
173 	 */
174 	case 'h':
175 		if (strncmp(cmd, "help", strlen(cmd)) != 0)
176 			goto bad;
177 		/* FALLTHROUGH */
178 	case '?':
179 		fprintf(stderr, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
180 			"Available commands are:\n",
181 			"\tls [arg] - list directory\n",
182 			"\tcd arg - change directory\n",
183 			"\tpwd - print current directory\n",
184 			"\tadd [arg] - add `arg' to list of",
185 			" files to be extracted\n",
186 			"\tdelete [arg] - delete `arg' from",
187 			" list of files to be extracted\n",
188 			"\textract - extract requested files\n",
189 			"\tsetmodes - set modes of requested directories\n",
190 			"\tquit - immediately exit program\n",
191 			"\twhat - list dump header information\n",
192 			"\tverbose - toggle verbose flag",
193 			" (useful with ``ls'')\n",
194 			"\thelp or `?' - print this list\n",
195 			"If no `arg' is supplied, the current",
196 			" directory is used\n");
197 		break;
198 	/*
199 	 * List a directory.
200 	 */
201 	case 'l':
202 		if (strncmp(cmd, "ls", strlen(cmd)) != 0)
203 			goto bad;
204 		printlist(name, curdir);
205 		break;
206 	/*
207 	 * Print current directory.
208 	 */
209 	case 'p':
210 		if (strncmp(cmd, "pwd", strlen(cmd)) != 0)
211 			goto bad;
212 		if (curdir[1] == '\0')
213 			fprintf(stderr, "/\n");
214 		else
215 			fprintf(stderr, "%s\n", &curdir[1]);
216 		break;
217 	/*
218 	 * Quit.
219 	 */
220 	case 'q':
221 		if (strncmp(cmd, "quit", strlen(cmd)) != 0)
222 			goto bad;
223 		return;
224 	case 'x':
225 		if (strncmp(cmd, "xit", strlen(cmd)) != 0)
226 			goto bad;
227 		return;
228 	/*
229 	 * Toggle verbose mode.
230 	 */
231 	case 'v':
232 		if (strncmp(cmd, "verbose", strlen(cmd)) != 0)
233 			goto bad;
234 		if (vflag) {
235 			fprintf(stderr, "verbose mode off\n");
236 			vflag = 0;
237 			break;
238 		}
239 		fprintf(stderr, "verbose mode on\n");
240 		vflag++;
241 		break;
242 	/*
243 	 * Just restore requested directory modes.
244 	 */
245 	case 's':
246 		if (strncmp(cmd, "setmodes", strlen(cmd)) != 0)
247 			goto bad;
248 		setdirmodes(FORCE);
249 		break;
250 	/*
251 	 * Print out dump header information.
252 	 */
253 	case 'w':
254 		if (strncmp(cmd, "what", strlen(cmd)) != 0)
255 			goto bad;
256 		printdumpinfo();
257 		break;
258 	/*
259 	 * Turn on debugging.
260 	 */
261 	case 'D':
262 		if (strncmp(cmd, "Debug", strlen(cmd)) != 0)
263 			goto bad;
264 		if (dflag) {
265 			fprintf(stderr, "debugging mode off\n");
266 			dflag = 0;
267 			break;
268 		}
269 		fprintf(stderr, "debugging mode on\n");
270 		dflag++;
271 		break;
272 	/*
273 	 * Unknown command.
274 	 */
275 	default:
276 	bad:
277 		fprintf(stderr, "%s: unknown command; type ? for help\n", cmd);
278 		break;
279 	}
280 	goto loop;
281 }
282 
283 /*
284  * Read and parse an interactive command.
285  * The first word on the line is assigned to "cmd". If
286  * there are no arguments on the command line, then "curdir"
287  * is returned as the argument. If there are arguments
288  * on the line they are returned one at a time on each
289  * successive call to getcmd. Each argument is first assigned
290  * to "name". If it does not start with "/" the pathname in
291  * "curdir" is prepended to it. Finally "canon" is called to
292  * eliminate any embedded ".." components.
293  */
294 static void
getcmd(char * curdir,char * cmd,char * name,size_t size,struct arglist * ap)295 getcmd(char *curdir, char *cmd, char *name, size_t size, struct arglist *ap)
296 {
297 	char *cp;
298 	static char input[BUFSIZ];
299 	char output[BUFSIZ];
300 #	define rawname input	/* save space by reusing input buffer */
301 
302 	/*
303 	 * Check to see if still processing arguments.
304 	 */
305 	if (ap->argcnt > 0)
306 		goto retnext;
307 	if (nextarg != NULL)
308 		goto getnext;
309 	/*
310 	 * Read a command line and trim off trailing white space.
311 	 */
312 	do	{
313 		fprintf(stderr, "restore > ");
314 		fflush(stderr);
315 		if (fgets(input, BUFSIZ, terminal) == NULL) {
316 			strcpy(cmd, "quit");
317 			return;
318 		}
319 	} while (input[0] == '\n');
320 	for (cp = &input[strlen(input) - 2]; *cp == ' ' || *cp == '\t'; cp--)
321 		/* trim off trailing white space and newline */;
322 	*++cp = '\0';
323 	/*
324 	 * Copy the command into "cmd".
325 	 */
326 	cp = copynext(input, cmd);
327 	ap->cmd = cmd;
328 	/*
329 	 * If no argument, use curdir as the default.
330 	 */
331 	if (*cp == '\0') {
332 		strncpy(name, curdir, size);
333 		name[size - 1] = '\0';
334 		return;
335 	}
336 	nextarg = cp;
337 	/*
338 	 * Find the next argument.
339 	 */
340 getnext:
341 	cp = copynext(nextarg, rawname);
342 	if (*cp == '\0')
343 		nextarg = NULL;
344 	else
345 		nextarg = cp;
346 	/*
347 	 * If it is an absolute pathname, canonicalize it and return it.
348 	 */
349 	if (rawname[0] == '/') {
350 		canon(rawname, name, size);
351 	} else {
352 		/*
353 		 * For relative pathnames, prepend the current directory to
354 		 * it then canonicalize and return it.
355 		 */
356 		snprintf(output, sizeof(output), "%s/%s", curdir, rawname);
357 		canon(output, name, size);
358 	}
359 	if (glob(name, GLOB_ALTDIRFUNC, NULL, &ap->glob) < 0)
360 		fprintf(stderr, "%s: out of memory\n", ap->cmd);
361 	if (ap->glob.gl_pathc == 0)
362 		return;
363 	ap->freeglob = 1;
364 	ap->argcnt = ap->glob.gl_pathc;
365 
366 retnext:
367 	strncpy(name, ap->glob.gl_pathv[ap->glob.gl_pathc - ap->argcnt], size);
368 	name[size - 1] = '\0';
369 	if (--ap->argcnt == 0) {
370 		ap->freeglob = 0;
371 		globfree(&ap->glob);
372 	}
373 #	undef rawname
374 }
375 
376 /*
377  * Strip off the next token of the input.
378  */
379 static char *
copynext(char * input,char * output)380 copynext(char *input, char *output)
381 {
382 	char *cp, *bp;
383 	char quote;
384 
385 	for (cp = input; *cp == ' ' || *cp == '\t'; cp++)
386 		/* skip to argument */;
387 	bp = output;
388 	while (*cp != ' ' && *cp != '\t' && *cp != '\0') {
389 		/*
390 		 * Handle back slashes.
391 		 */
392 		if (*cp == '\\') {
393 			if (*++cp == '\0') {
394 				fprintf(stderr,
395 					"command lines cannot be continued\n");
396 				continue;
397 			}
398 			*bp++ = *cp++;
399 			continue;
400 		}
401 		/*
402 		 * The usual unquoted case.
403 		 */
404 		if (*cp != '\'' && *cp != '"') {
405 			*bp++ = *cp++;
406 			continue;
407 		}
408 		/*
409 		 * Handle single and double quotes.
410 		 */
411 		quote = *cp++;
412 		while (*cp != quote && *cp != '\0')
413 			*bp++ = *cp++ | 0200;
414 		if (*cp++ == '\0') {
415 			fprintf(stderr, "missing %c\n", quote);
416 			cp--;
417 			continue;
418 		}
419 	}
420 	*bp = '\0';
421 	return (cp);
422 }
423 
424 /*
425  * Canonicalize file names to always start with ``./'' and
426  * remove any embedded "." and ".." components.
427  */
428 void
canon(const char * rawname,char * canonname,size_t len)429 canon(const char *rawname, char *canonname, size_t len)
430 {
431 	char *cp, *np;
432 
433 	if (strcmp(rawname, ".") == 0 || strncmp(rawname, "./", 2) == 0)
434 		strcpy(canonname, "");
435 	else if (rawname[0] == '/')
436 		strcpy(canonname, ".");
437 	else
438 		strcpy(canonname, "./");
439 	if (strlen(canonname) + strlen(rawname) >= len) {
440 		fprintf(stderr, "canonname: not enough buffer space\n");
441 		done(1);
442 	}
443 
444 	strcat(canonname, rawname);
445 	/*
446 	 * Eliminate multiple and trailing '/'s
447 	 */
448 	for (cp = np = canonname; *np != '\0'; cp++) {
449 		*cp = *np++;
450 		while (*cp == '/' && *np == '/')
451 			np++;
452 	}
453 	*cp = '\0';
454 	if (*--cp == '/')
455 		*cp = '\0';
456 	/*
457 	 * Eliminate extraneous "." and ".." from pathnames.
458 	 */
459 	for (np = canonname; *np != '\0'; ) {
460 		np++;
461 		cp = np;
462 		while (*np != '/' && *np != '\0')
463 			np++;
464 		if (np - cp == 1 && *cp == '.') {
465 			cp--;
466 			strcpy(cp, np);
467 			np = cp;
468 		}
469 		if (np - cp == 2 && strncmp(cp, "..", 2) == 0) {
470 			cp--;
471 			while (cp > &canonname[1] && *--cp != '/')
472 				/* find beginning of name */;
473 			strcpy(cp, np);
474 			np = cp;
475 		}
476 	}
477 }
478 
479 /*
480  * Do an "ls" style listing of a directory
481  */
482 static void
printlist(const char * name,char * basename)483 printlist(const char *name, char *basename)
484 {
485 	struct afile *fp, *list, *listp = NULL;
486 	struct direct *dp;
487 	struct afile single;
488 	RST_DIR *dirp;
489 	int entries, len, namelen;
490 	char locname[MAXPATHLEN + 1];
491 
492 	dp = pathsearch(name);
493 	if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0) ||
494 	    (!vflag && dp->d_ino == UFS_WINO))
495 		return;
496 	if ((dirp = rst_opendir(name)) == NULL) {
497 		entries = 1;
498 		list = &single;
499 		mkentry(name, dp, list);
500 		len = strlen(basename) + 1;
501 		if (strlen(name) - len > (unsigned short)single.len) {
502 			freename(single.fname);
503 			single.fname = savename(&name[len]);
504 			single.len = strlen(single.fname);
505 		}
506 	} else {
507 		entries = 0;
508 		while ((dp = rst_readdir(dirp)))
509 			entries++;
510 		rst_closedir(dirp);
511 		list = (struct afile *)malloc(entries * sizeof(struct afile));
512 		if (list == NULL) {
513 			fprintf(stderr, "ls: out of memory\n");
514 			return;
515 		}
516 		if ((dirp = rst_opendir(name)) == NULL)
517 			panic("directory reopen failed\n");
518 		fprintf(stderr, "%s:\n", name);
519 		entries = 0;
520 		listp = list;
521 		strncpy(locname, name, MAXPATHLEN);
522 		strncat(locname, "/", MAXPATHLEN);
523 		namelen = strlen(locname);
524 		while ((dp = rst_readdir(dirp))) {
525 			if (dp == NULL)
526 				break;
527 			if (!dflag && TSTINO(dp->d_ino, dumpmap) == 0)
528 				continue;
529 			if (!vflag && (dp->d_ino == UFS_WINO ||
530 			     strcmp(dp->d_name, ".") == 0 ||
531 			     strcmp(dp->d_name, "..") == 0))
532 				continue;
533 			locname[namelen] = '\0';
534 			if (namelen + dp->d_namlen >= MAXPATHLEN) {
535 				fprintf(stderr, "%s%s: name exceeds %d char\n",
536 					locname, dp->d_name, MAXPATHLEN);
537 			} else {
538 				strncat(locname, dp->d_name, (int)dp->d_namlen);
539 				mkentry(locname, dp, listp++);
540 				entries++;
541 			}
542 		}
543 		rst_closedir(dirp);
544 		if (entries == 0) {
545 			fprintf(stderr, "\n");
546 			free(list);
547 			return;
548 		}
549 		qsort((char *)list, entries, sizeof(struct afile), fcmp);
550 	}
551 	formatf(list, entries);
552 	if (dirp != NULL) {
553 		for (fp = listp - 1; fp >= list; fp--)
554 			freename(fp->fname);
555 		fprintf(stderr, "\n");
556 		free(list);
557 	}
558 }
559 
560 /*
561  * Read the contents of a directory.
562  */
563 static void
mkentry(const char * name,struct direct * dp,struct afile * fp)564 mkentry(const char *name, struct direct *dp, struct afile *fp)
565 {
566 	char *cp;
567 	struct entry *np;
568 
569 	fp->fnum = dp->d_ino;
570 	fp->fname = savename(dp->d_name);
571 	for (cp = fp->fname; *cp; cp++)
572 		if (!vflag && (*cp < ' ' || *cp >= 0177))
573 			*cp = '?';
574 	fp->len = cp - fp->fname;
575 	if (dflag && TSTINO(fp->fnum, dumpmap) == 0)
576 		fp->prefix = '^';
577 	else if ((np = lookupname(name)) != NULL && (np->e_flags & NEW))
578 		fp->prefix = '*';
579 	else
580 		fp->prefix = ' ';
581 	switch(dp->d_type) {
582 
583 	default:
584 		fprintf(stderr, "Warning: undefined file type %d\n",
585 		    dp->d_type);
586 		/* fall through */
587 	case DT_REG:
588 		fp->postfix = ' ';
589 		break;
590 
591 	case DT_LNK:
592 		fp->postfix = '@';
593 		break;
594 
595 	case DT_FIFO:
596 	case DT_SOCK:
597 		fp->postfix = '=';
598 		break;
599 
600 	case DT_CHR:
601 	case DT_BLK:
602 		fp->postfix = '#';
603 		break;
604 
605 	case DT_WHT:
606 		fp->postfix = '%';
607 		break;
608 
609 	case DT_UNKNOWN:
610 	case DT_DIR:
611 		if (inodetype(dp->d_ino) == NODE)
612 			fp->postfix = '/';
613 		else
614 			fp->postfix = ' ';
615 		break;
616 	}
617 	return;
618 }
619 
620 /*
621  * Print out a pretty listing of a directory
622  */
623 static void
formatf(struct afile * list,int nentry)624 formatf(struct afile *list, int nentry)
625 {
626 	struct afile *fp, *endlist;
627 	unsigned int bigino;
628 	int width, haveprefix, havepostfix;
629 	int i, j, w, precision = 0, columns, lines;
630 
631 	width = 0;
632 	haveprefix = 0;
633 	havepostfix = 0;
634 	bigino = UFS_ROOTINO;
635 	endlist = &list[nentry];
636 	for (fp = &list[0]; fp < endlist; fp++) {
637 		if (bigino < fp->fnum)
638 			bigino = fp->fnum;
639 		if (width < fp->len)
640 			width = fp->len;
641 		if (fp->prefix != ' ')
642 			haveprefix = 1;
643 		if (fp->postfix != ' ')
644 			havepostfix = 1;
645 	}
646 	if (haveprefix)
647 		width++;
648 	if (havepostfix)
649 		width++;
650 	if (vflag) {
651 		for (precision = 0, i = bigino; i > 0; i /= 10)
652 			precision++;
653 		width += precision + 1;
654 	}
655 	width++;
656 	columns = 81 / width;
657 	if (columns == 0)
658 		columns = 1;
659 	lines = (nentry + columns - 1) / columns;
660 	for (i = 0; i < lines; i++) {
661 		for (j = 0; j < columns; j++) {
662 			fp = &list[j * lines + i];
663 			if (vflag) {
664 				fprintf(stderr, "%*d ", precision, fp->fnum);
665 				fp->len += precision + 1;
666 			}
667 			if (haveprefix) {
668 				putc(fp->prefix, stderr);
669 				fp->len++;
670 			}
671 			fprintf(stderr, "%s", fp->fname);
672 			if (havepostfix) {
673 				putc(fp->postfix, stderr);
674 				fp->len++;
675 			}
676 			if (fp + lines >= endlist) {
677 				fprintf(stderr, "\n");
678 				break;
679 			}
680 			for (w = fp->len; w < width; w++)
681 				putc(' ', stderr);
682 		}
683 	}
684 }
685 
686 /*
687  * Skip over directory entries that are not on the tape
688  *
689  * First have to get definition of a dirent.
690  */
691 #undef DIRBLKSIZ
692 #include <dirent.h>
693 #undef d_ino
694 
695 struct dirent *
glob_readdir(RST_DIR * dirp)696 glob_readdir(RST_DIR *dirp)
697 {
698 	enum {
699 		ADIRENT_STORAGE_LEN = _DIRENT_RECLEN(NAME_MAX),
700 	};
701 	static union {
702 		uint8_t storage[ADIRENT_STORAGE_LEN];
703 		struct dirent alignment;
704 	} adirent;
705 	struct direct *dp;
706 	struct dirent *adp;
707 
708 	while ((dp = rst_readdir(dirp)) != NULL) {
709 		if (!vflag && dp->d_ino == UFS_WINO)
710 			continue;
711 		if (dflag || TSTINO(dp->d_ino, dumpmap))
712 			break;
713 	}
714 	if (dp == NULL)
715 		return (NULL);
716 	adp = (struct dirent *)&adirent;
717 	adp->d_fileno = dp->d_ino;
718 	adp->d_namlen = dp->d_namlen;
719 	strcpy(adp->d_name, dp->d_name);
720 	return (adp);
721 }
722 
723 /*
724  * Return st_mode information in response to stat or lstat calls
725  */
726 static int
glob_stat(const char * name,struct stat * stp)727 glob_stat(const char *name, struct stat *stp)
728 {
729 	struct direct *dp;
730 
731 	dp = pathsearch(name);
732 	if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0) ||
733 	    (!vflag && dp->d_ino == UFS_WINO))
734 		return (-1);
735 	if (inodetype(dp->d_ino) == NODE)
736 		stp->st_mode = IFDIR;
737 	else
738 		stp->st_mode = IFREG;
739 	return (0);
740 }
741 
742 /*
743  * Comparison routine for qsort.
744  */
745 static int
fcmp(const void * f1,const void * f2)746 fcmp(const void *f1, const void *f2)
747 {
748 	return (strcmp(((const struct afile *)f1)->fname,
749 	    ((const struct afile *)f2)->fname));
750 }
751 
752 /*
753  * respond to interrupts
754  */
755 void
onintr(int signo __unused)756 onintr(int signo __unused)
757 {
758 	if (command == 'i' && runshell)
759 		longjmp(reset, 1);
760 	if (reply("restore interrupted, continue") == FAIL)
761 		done(1);
762 }
763