2 * Copyright (c) 1985, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 4. 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.
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
32 static char sccsid[] = "@(#)interactive.c 8.5 (Berkeley) 5/1/95";
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
42 #include <ufs/ufs/dinode.h>
43 #include <ufs/ufs/dir.h>
44 #include <protocols/dumprestore.h>
59 * Things to handle interruptions.
63 static char *nextarg = NULL;
66 * Structure and routines associated with listing directories.
69 ino_t fnum; /* inode number of file */
70 char *fname; /* file name */
71 short len; /* name length */
72 char prefix; /* prefix character */
73 char postfix; /* postfix character */
76 int freeglob; /* glob structure needs to be freed */
77 int argcnt; /* next globbed argument to return */
78 glob_t glob; /* globbing information */
79 char *cmd; /* the current command */
82 static char *copynext(char *, char *);
83 static int fcmp(const void *, const void *);
84 static void formatf(struct afile *, int);
85 static void getcmd(char *, char *, char *, size_t, struct arglist *);
86 struct dirent *glob_readdir(void *);
87 static int glob_stat(const char *, struct stat *);
88 static void mkentry(char *, struct direct *, struct afile *);
89 static void printlist(char *, char *);
92 * Read and execute commands from the terminal.
99 struct arglist arglist;
100 char curdir[MAXPATHLEN];
101 char name[MAXPATHLEN];
104 arglist.freeglob = 0;
106 arglist.glob.gl_flags = GLOB_ALTDIRFUNC;
107 arglist.glob.gl_opendir = rst_opendir;
108 arglist.glob.gl_readdir = glob_readdir;
109 arglist.glob.gl_closedir = rst_closedir;
110 arglist.glob.gl_lstat = glob_stat;
111 arglist.glob.gl_stat = glob_stat;
112 canon("/", curdir, sizeof(curdir));
114 if (setjmp(reset) != 0) {
115 if (arglist.freeglob != 0) {
116 arglist.freeglob = 0;
118 globfree(&arglist.glob);
124 getcmd(curdir, cmd, name, sizeof(name), &arglist);
127 * Add elements to the extraction list.
130 if (strncmp(cmd, "add", strlen(cmd)) != 0)
132 ino = dirlookup(name);
137 treescan(name, ino, addfile);
140 * Change working directory.
143 if (strncmp(cmd, "cd", strlen(cmd)) != 0)
145 ino = dirlookup(name);
148 if (inodetype(ino) == LEAF) {
149 fprintf(stderr, "%s: not a directory\n", name);
152 (void) strcpy(curdir, name);
155 * Delete elements from the extraction list.
158 if (strncmp(cmd, "delete", strlen(cmd)) != 0)
160 np = lookupname(name);
161 if (np == NULL || (np->e_flags & NEW) == 0) {
162 fprintf(stderr, "%s: not on extraction list\n", name);
165 treescan(name, np->e_ino, deletefile);
168 * Extract the requested list.
171 if (strncmp(cmd, "extract", strlen(cmd)) != 0)
181 * List available commands.
184 if (strncmp(cmd, "help", strlen(cmd)) != 0)
187 fprintf(stderr, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
188 "Available commands are:\n",
189 "\tls [arg] - list directory\n",
190 "\tcd arg - change directory\n",
191 "\tpwd - print current directory\n",
192 "\tadd [arg] - add `arg' to list of",
193 " files to be extracted\n",
194 "\tdelete [arg] - delete `arg' from",
195 " list of files to be extracted\n",
196 "\textract - extract requested files\n",
197 "\tsetmodes - set modes of requested directories\n",
198 "\tquit - immediately exit program\n",
199 "\twhat - list dump header information\n",
200 "\tverbose - toggle verbose flag",
201 " (useful with ``ls'')\n",
202 "\thelp or `?' - print this list\n",
203 "If no `arg' is supplied, the current",
204 " directory is used\n");
210 if (strncmp(cmd, "ls", strlen(cmd)) != 0)
212 printlist(name, curdir);
215 * Print current directory.
218 if (strncmp(cmd, "pwd", strlen(cmd)) != 0)
220 if (curdir[1] == '\0')
221 fprintf(stderr, "/\n");
223 fprintf(stderr, "%s\n", &curdir[1]);
229 if (strncmp(cmd, "quit", strlen(cmd)) != 0)
233 if (strncmp(cmd, "xit", strlen(cmd)) != 0)
237 * Toggle verbose mode.
240 if (strncmp(cmd, "verbose", strlen(cmd)) != 0)
243 fprintf(stderr, "verbose mode off\n");
247 fprintf(stderr, "verbose mode on\n");
251 * Just restore requested directory modes.
254 if (strncmp(cmd, "setmodes", strlen(cmd)) != 0)
259 * Print out dump header information.
262 if (strncmp(cmd, "what", strlen(cmd)) != 0)
270 if (strncmp(cmd, "Debug", strlen(cmd)) != 0)
273 fprintf(stderr, "debugging mode off\n");
277 fprintf(stderr, "debugging mode on\n");
285 fprintf(stderr, "%s: unknown command; type ? for help\n", cmd);
292 * Read and parse an interactive command.
293 * The first word on the line is assigned to "cmd". If
294 * there are no arguments on the command line, then "curdir"
295 * is returned as the argument. If there are arguments
296 * on the line they are returned one at a time on each
297 * successive call to getcmd. Each argument is first assigned
298 * to "name". If it does not start with "/" the pathname in
299 * "curdir" is prepended to it. Finally "canon" is called to
300 * eliminate any embedded ".." components.
303 getcmd(char *curdir, char *cmd, char *name, size_t size, struct arglist *ap)
306 static char input[BUFSIZ];
308 # define rawname input /* save space by reusing input buffer */
311 * Check to see if still processing arguments.
318 * Read a command line and trim off trailing white space.
321 fprintf(stderr, "restore > ");
322 (void) fflush(stderr);
323 if (fgets(input, BUFSIZ, terminal) == NULL) {
327 } while (input[0] == '\n');
328 for (cp = &input[strlen(input) - 2]; *cp == ' ' || *cp == '\t'; cp--)
329 /* trim off trailing white space and newline */;
332 * Copy the command into "cmd".
334 cp = copynext(input, cmd);
337 * If no argument, use curdir as the default.
340 (void) strncpy(name, curdir, size);
341 name[size - 1] = '\0';
346 * Find the next argument.
349 cp = copynext(nextarg, rawname);
355 * If it is an absolute pathname, canonicalize it and return it.
357 if (rawname[0] == '/') {
358 canon(rawname, name, size);
361 * For relative pathnames, prepend the current directory to
362 * it then canonicalize and return it.
364 snprintf(output, sizeof(output), "%s/%s", curdir, rawname);
365 canon(output, name, size);
367 switch (glob(name, GLOB_ALTDIRFUNC, NULL, &ap->glob)) {
369 fprintf(stderr, "%s: out of memory\n", ap->cmd);
372 fprintf(stderr, "%s %s: no such file or directory\n", ap->cmd, name);
375 if (ap->glob.gl_pathc == 0)
378 ap->argcnt = ap->glob.gl_pathc;
381 strncpy(name, ap->glob.gl_pathv[ap->glob.gl_pathc - ap->argcnt], size);
382 name[size - 1] = '\0';
383 if (--ap->argcnt == 0) {
391 * Strip off the next token of the input.
394 copynext(char *input, char *output)
399 for (cp = input; *cp == ' ' || *cp == '\t'; cp++)
400 /* skip to argument */;
402 while (*cp != ' ' && *cp != '\t' && *cp != '\0') {
404 * Handle back slashes.
409 "command lines cannot be continued\n");
416 * The usual unquoted case.
418 if (*cp != '\'' && *cp != '"') {
423 * Handle single and double quotes.
426 while (*cp != quote && *cp != '\0')
429 fprintf(stderr, "missing %c\n", quote);
439 * Canonicalize file names to always start with ``./'' and
440 * remove any embedded "." and ".." components.
443 canon(char *rawname, char *canonname, size_t len)
447 if (strcmp(rawname, ".") == 0 || strncmp(rawname, "./", 2) == 0)
448 (void) strcpy(canonname, "");
449 else if (rawname[0] == '/')
450 (void) strcpy(canonname, ".");
452 (void) strcpy(canonname, "./");
453 if (strlen(canonname) + strlen(rawname) >= len) {
454 fprintf(stderr, "canonname: not enough buffer space\n");
458 (void) strcat(canonname, rawname);
460 * Eliminate multiple and trailing '/'s
462 for (cp = np = canonname; *np != '\0'; cp++) {
464 while (*cp == '/' && *np == '/')
471 * Eliminate extraneous "." and ".." from pathnames.
473 for (np = canonname; *np != '\0'; ) {
476 while (*np != '/' && *np != '\0')
478 if (np - cp == 1 && *cp == '.') {
480 (void) strcpy(cp, np);
483 if (np - cp == 2 && strncmp(cp, "..", 2) == 0) {
485 while (cp > &canonname[1] && *--cp != '/')
486 /* find beginning of name */;
487 (void) strcpy(cp, np);
494 * Do an "ls" style listing of a directory
497 printlist(char *name, char *basename)
499 struct afile *fp, *list, *listp;
503 int entries, len, namelen;
504 char locname[MAXPATHLEN];
506 dp = pathsearch(name);
507 if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0) ||
508 (!vflag && dp->d_ino == WINO))
510 if ((dirp = rst_opendir(name)) == NULL) {
513 mkentry(name, dp, list);
514 len = strlen(basename) + 1;
515 if (strlen(name) - len > single.len) {
516 freename(single.fname);
517 single.fname = savename(&name[len]);
518 single.len = strlen(single.fname);
522 while ((dp = rst_readdir(dirp)))
525 list = (struct afile *)malloc(entries * sizeof(struct afile));
527 fprintf(stderr, "ls: out of memory\n");
530 if ((dirp = rst_opendir(name)) == NULL)
531 panic("directory reopen failed\n");
532 fprintf(stderr, "%s:\n", name);
535 (void)strlcpy(locname, name, MAXPATHLEN);
536 (void)strlcat(locname, "/", MAXPATHLEN);
537 namelen = strlen(locname);
538 while ((dp = rst_readdir(dirp))) {
541 if (!dflag && TSTINO(dp->d_ino, dumpmap) == 0)
543 if (!vflag && (dp->d_ino == WINO ||
544 strcmp(dp->d_name, ".") == 0 ||
545 strcmp(dp->d_name, "..") == 0))
547 locname[namelen] = '\0';
548 if (namelen + dp->d_namlen >= MAXPATHLEN) {
549 fprintf(stderr, "%s%s: name exceeds %d char\n",
550 locname, dp->d_name, MAXPATHLEN);
552 (void)strlcat(locname, dp->d_name, MAXPATHLEN);
553 mkentry(locname, dp, listp++);
559 fprintf(stderr, "\n");
563 qsort((char *)list, entries, sizeof(struct afile), fcmp);
565 formatf(list, entries);
567 for (fp = listp - 1; fp >= list; fp--)
569 fprintf(stderr, "\n");
575 * Read the contents of a directory.
578 mkentry(char *name, struct direct *dp, struct afile *fp)
583 fp->fnum = dp->d_ino;
584 fp->fname = savename(dp->d_name);
585 for (cp = fp->fname; *cp; cp++)
586 if (!vflag && !isprint((unsigned char)*cp))
588 fp->len = cp - fp->fname;
589 if (dflag && TSTINO(fp->fnum, dumpmap) == 0)
591 else if ((np = lookupname(name)) != NULL && (np->e_flags & NEW))
598 fprintf(stderr, "Warning: undefined file type %d\n",
625 if (inodetype(dp->d_ino) == NODE)
635 * Print out a pretty listing of a directory
638 formatf(struct afile *list, int nentry)
640 struct afile *fp, *endlist;
641 int width, bigino, haveprefix, havepostfix;
642 int i, j, w, precision, columns, lines;
648 endlist = &list[nentry];
649 for (fp = &list[0]; fp < endlist; fp++) {
650 if (bigino < fp->fnum)
654 if (fp->prefix != ' ')
656 if (fp->postfix != ' ')
664 for (precision = 0, i = bigino; i > 0; i /= 10)
666 width += precision + 1;
669 columns = 81 / width;
672 lines = howmany(nentry, columns);
673 for (i = 0; i < lines; i++) {
674 for (j = 0; j < columns; j++) {
675 fp = &list[j * lines + i];
677 fprintf(stderr, "%*ju ",
678 precision, (uintmax_t)fp->fnum);
679 fp->len += precision + 1;
682 putc(fp->prefix, stderr);
685 fprintf(stderr, "%s", fp->fname);
687 putc(fp->postfix, stderr);
690 if (fp + lines >= endlist) {
691 fprintf(stderr, "\n");
694 for (w = fp->len; w < width; w++)
701 * Skip over directory entries that are not on the tape
703 * First have to get definition of a dirent.
710 glob_readdir(void *dirp)
713 static struct dirent adirent;
715 while ((dp = rst_readdir(dirp)) != NULL) {
716 if (!vflag && dp->d_ino == WINO)
718 if (dflag || TSTINO(dp->d_ino, dumpmap))
723 adirent.d_fileno = dp->d_ino;
724 adirent.d_namlen = dp->d_namlen;
725 memmove(adirent.d_name, dp->d_name, dp->d_namlen + 1);
730 * Return st_mode information in response to stat or lstat calls
733 glob_stat(const char *name, struct stat *stp)
737 dp = pathsearch(name);
738 if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0) ||
739 (!vflag && dp->d_ino == WINO))
741 if (inodetype(dp->d_ino) == NODE)
742 stp->st_mode = IFDIR;
744 stp->st_mode = IFREG;
749 * Comparison routine for qsort.
752 fcmp(const void *f1, const void *f2)
754 return (strcoll(((struct afile *)f1)->fname,
755 ((struct afile *)f2)->fname));
759 * respond to interrupts
762 onintr(int signo __unused)
764 if (command == 'i' && runshell)
766 if (reply("restore interrupted, continue") == FAIL)