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-rw-r--r--sbin/restore/interactive.c755
1 files changed, 755 insertions, 0 deletions
diff --git a/sbin/restore/interactive.c b/sbin/restore/interactive.c
new file mode 100644
index 000000000000..1b9616cb3c25
--- /dev/null
+++ b/sbin/restore/interactive.c
@@ -0,0 +1,755 @@
+/*
+ * Copyright (c) 1985, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)interactive.c 8.1 (Berkeley) 6/5/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+
+#include <ufs/ffs/fs.h>
+#include <ufs/ufs/dinode.h>
+#include <ufs/ufs/dir.h>
+#include <protocols/dumprestore.h>
+
+#include <setjmp.h>
+#include <glob.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "restore.h"
+#include "extern.h"
+
+#define round(a, b) (((a) + (b) - 1) / (b) * (b))
+
+/*
+ * Things to handle interruptions.
+ */
+static int runshell;
+static jmp_buf reset;
+static char *nextarg = NULL;
+
+/*
+ * Structure and routines associated with listing directories.
+ */
+struct afile {
+ ino_t fnum; /* inode number of file */
+ char *fname; /* file name */
+ short len; /* name length */
+ char prefix; /* prefix character */
+ char postfix; /* postfix character */
+};
+struct arglist {
+ int freeglob; /* glob structure needs to be freed */
+ int argcnt; /* next globbed argument to return */
+ glob_t glob; /* globbing information */
+ char *cmd; /* the current command */
+};
+
+static char *copynext __P((char *, char *));
+static int fcmp __P((const void *, const void *));
+static void formatf __P((struct afile *, int));
+static void getcmd __P((char *, char *, char *, struct arglist *));
+struct dirent *glob_readdir __P((RST_DIR *dirp));
+static int glob_stat __P((const char *, struct stat *));
+static void mkentry __P((struct direct *, struct afile *));
+static void printlist __P((char *, char *));
+
+/*
+ * Read and execute commands from the terminal.
+ */
+void
+runcmdshell()
+{
+ register struct entry *np;
+ ino_t ino;
+ struct arglist arglist;
+ char curdir[MAXPATHLEN];
+ char name[MAXPATHLEN];
+ char cmd[BUFSIZ];
+
+ arglist.freeglob = 0;
+ arglist.argcnt = 0;
+ arglist.glob.gl_flags = GLOB_ALTDIRFUNC;
+ arglist.glob.gl_opendir = (void *)rst_opendir;
+ arglist.glob.gl_readdir = (void *)glob_readdir;
+ arglist.glob.gl_closedir = (void *)rst_closedir;
+ arglist.glob.gl_lstat = glob_stat;
+ arglist.glob.gl_stat = glob_stat;
+ canon("/", curdir);
+loop:
+ if (setjmp(reset) != 0) {
+ if (arglist.freeglob != 0) {
+ arglist.freeglob = 0;
+ arglist.argcnt = 0;
+ globfree(&arglist.glob);
+ }
+ nextarg = NULL;
+ volno = 0;
+ }
+ runshell = 1;
+ getcmd(curdir, cmd, name, &arglist);
+ switch (cmd[0]) {
+ /*
+ * Add elements to the extraction list.
+ */
+ case 'a':
+ if (strncmp(cmd, "add", strlen(cmd)) != 0)
+ goto bad;
+ ino = dirlookup(name);
+ if (ino == 0)
+ break;
+ if (mflag)
+ pathcheck(name);
+ treescan(name, ino, addfile);
+ break;
+ /*
+ * Change working directory.
+ */
+ case 'c':
+ if (strncmp(cmd, "cd", strlen(cmd)) != 0)
+ goto bad;
+ ino = dirlookup(name);
+ if (ino == 0)
+ break;
+ if (inodetype(ino) == LEAF) {
+ fprintf(stderr, "%s: not a directory\n", name);
+ break;
+ }
+ (void) strcpy(curdir, name);
+ break;
+ /*
+ * Delete elements from the extraction list.
+ */
+ case 'd':
+ if (strncmp(cmd, "delete", strlen(cmd)) != 0)
+ goto bad;
+ np = lookupname(name);
+ if (np == NULL || (np->e_flags & NEW) == 0) {
+ fprintf(stderr, "%s: not on extraction list\n", name);
+ break;
+ }
+ treescan(name, np->e_ino, deletefile);
+ break;
+ /*
+ * Extract the requested list.
+ */
+ case 'e':
+ if (strncmp(cmd, "extract", strlen(cmd)) != 0)
+ goto bad;
+ createfiles();
+ createlinks();
+ setdirmodes(0);
+ if (dflag)
+ checkrestore();
+ volno = 0;
+ break;
+ /*
+ * List available commands.
+ */
+ case 'h':
+ if (strncmp(cmd, "help", strlen(cmd)) != 0)
+ goto bad;
+ case '?':
+ fprintf(stderr, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ "Available commands are:\n",
+ "\tls [arg] - list directory\n",
+ "\tcd arg - change directory\n",
+ "\tpwd - print current directory\n",
+ "\tadd [arg] - add `arg' to list of",
+ " files to be extracted\n",
+ "\tdelete [arg] - delete `arg' from",
+ " list of files to be extracted\n",
+ "\textract - extract requested files\n",
+ "\tsetmodes - set modes of requested directories\n",
+ "\tquit - immediately exit program\n",
+ "\twhat - list dump header information\n",
+ "\tverbose - toggle verbose flag",
+ " (useful with ``ls'')\n",
+ "\thelp or `?' - print this list\n",
+ "If no `arg' is supplied, the current",
+ " directory is used\n");
+ break;
+ /*
+ * List a directory.
+ */
+ case 'l':
+ if (strncmp(cmd, "ls", strlen(cmd)) != 0)
+ goto bad;
+ printlist(name, curdir);
+ break;
+ /*
+ * Print current directory.
+ */
+ case 'p':
+ if (strncmp(cmd, "pwd", strlen(cmd)) != 0)
+ goto bad;
+ if (curdir[1] == '\0')
+ fprintf(stderr, "/\n");
+ else
+ fprintf(stderr, "%s\n", &curdir[1]);
+ break;
+ /*
+ * Quit.
+ */
+ case 'q':
+ if (strncmp(cmd, "quit", strlen(cmd)) != 0)
+ goto bad;
+ return;
+ case 'x':
+ if (strncmp(cmd, "xit", strlen(cmd)) != 0)
+ goto bad;
+ return;
+ /*
+ * Toggle verbose mode.
+ */
+ case 'v':
+ if (strncmp(cmd, "verbose", strlen(cmd)) != 0)
+ goto bad;
+ if (vflag) {
+ fprintf(stderr, "verbose mode off\n");
+ vflag = 0;
+ break;
+ }
+ fprintf(stderr, "verbose mode on\n");
+ vflag++;
+ break;
+ /*
+ * Just restore requested directory modes.
+ */
+ case 's':
+ if (strncmp(cmd, "setmodes", strlen(cmd)) != 0)
+ goto bad;
+ setdirmodes(FORCE);
+ break;
+ /*
+ * Print out dump header information.
+ */
+ case 'w':
+ if (strncmp(cmd, "what", strlen(cmd)) != 0)
+ goto bad;
+ printdumpinfo();
+ break;
+ /*
+ * Turn on debugging.
+ */
+ case 'D':
+ if (strncmp(cmd, "Debug", strlen(cmd)) != 0)
+ goto bad;
+ if (dflag) {
+ fprintf(stderr, "debugging mode off\n");
+ dflag = 0;
+ break;
+ }
+ fprintf(stderr, "debugging mode on\n");
+ dflag++;
+ break;
+ /*
+ * Unknown command.
+ */
+ default:
+ bad:
+ fprintf(stderr, "%s: unknown command; type ? for help\n", cmd);
+ break;
+ }
+ goto loop;
+}
+
+/*
+ * Read and parse an interactive command.
+ * The first word on the line is assigned to "cmd". If
+ * there are no arguments on the command line, then "curdir"
+ * is returned as the argument. If there are arguments
+ * on the line they are returned one at a time on each
+ * successive call to getcmd. Each argument is first assigned
+ * to "name". If it does not start with "/" the pathname in
+ * "curdir" is prepended to it. Finally "canon" is called to
+ * eliminate any embedded ".." components.
+ */
+static void
+getcmd(curdir, cmd, name, ap)
+ char *curdir, *cmd, *name;
+ struct arglist *ap;
+{
+ register char *cp;
+ static char input[BUFSIZ];
+ char output[BUFSIZ];
+# define rawname input /* save space by reusing input buffer */
+
+ /*
+ * Check to see if still processing arguments.
+ */
+ if (ap->argcnt > 0)
+ goto retnext;
+ if (nextarg != NULL)
+ goto getnext;
+ /*
+ * Read a command line and trim off trailing white space.
+ */
+ do {
+ fprintf(stderr, "restore > ");
+ (void) fflush(stderr);
+ (void) fgets(input, BUFSIZ, terminal);
+ } while (!feof(terminal) && input[0] == '\n');
+ if (feof(terminal)) {
+ (void) strcpy(cmd, "quit");
+ return;
+ }
+ for (cp = &input[strlen(input) - 2]; *cp == ' ' || *cp == '\t'; cp--)
+ /* trim off trailing white space and newline */;
+ *++cp = '\0';
+ /*
+ * Copy the command into "cmd".
+ */
+ cp = copynext(input, cmd);
+ ap->cmd = cmd;
+ /*
+ * If no argument, use curdir as the default.
+ */
+ if (*cp == '\0') {
+ (void) strcpy(name, curdir);
+ return;
+ }
+ nextarg = cp;
+ /*
+ * Find the next argument.
+ */
+getnext:
+ cp = copynext(nextarg, rawname);
+ if (*cp == '\0')
+ nextarg = NULL;
+ else
+ nextarg = cp;
+ /*
+ * If it is an absolute pathname, canonicalize it and return it.
+ */
+ if (rawname[0] == '/') {
+ canon(rawname, name);
+ } else {
+ /*
+ * For relative pathnames, prepend the current directory to
+ * it then canonicalize and return it.
+ */
+ (void) strcpy(output, curdir);
+ (void) strcat(output, "/");
+ (void) strcat(output, rawname);
+ canon(output, name);
+ }
+ if (glob(name, GLOB_ALTDIRFUNC, NULL, &ap->glob) < 0)
+ fprintf(stderr, "%s: out of memory\n", ap->cmd);
+ if (ap->glob.gl_pathc == 0)
+ return;
+ ap->freeglob = 1;
+ ap->argcnt = ap->glob.gl_pathc;
+
+retnext:
+ strcpy(name, ap->glob.gl_pathv[ap->glob.gl_pathc - ap->argcnt]);
+ if (--ap->argcnt == 0) {
+ ap->freeglob = 0;
+ globfree(&ap->glob);
+ }
+# undef rawname
+}
+
+/*
+ * Strip off the next token of the input.
+ */
+static char *
+copynext(input, output)
+ char *input, *output;
+{
+ register char *cp, *bp;
+ char quote;
+
+ for (cp = input; *cp == ' ' || *cp == '\t'; cp++)
+ /* skip to argument */;
+ bp = output;
+ while (*cp != ' ' && *cp != '\t' && *cp != '\0') {
+ /*
+ * Handle back slashes.
+ */
+ if (*cp == '\\') {
+ if (*++cp == '\0') {
+ fprintf(stderr,
+ "command lines cannot be continued\n");
+ continue;
+ }
+ *bp++ = *cp++;
+ continue;
+ }
+ /*
+ * The usual unquoted case.
+ */
+ if (*cp != '\'' && *cp != '"') {
+ *bp++ = *cp++;
+ continue;
+ }
+ /*
+ * Handle single and double quotes.
+ */
+ quote = *cp++;
+ while (*cp != quote && *cp != '\0')
+ *bp++ = *cp++ | 0200;
+ if (*cp++ == '\0') {
+ fprintf(stderr, "missing %c\n", quote);
+ cp--;
+ continue;
+ }
+ }
+ *bp = '\0';
+ return (cp);
+}
+
+/*
+ * Canonicalize file names to always start with ``./'' and
+ * remove any imbedded "." and ".." components.
+ */
+void
+canon(rawname, canonname)
+ char *rawname, *canonname;
+{
+ register char *cp, *np;
+
+ if (strcmp(rawname, ".") == 0 || strncmp(rawname, "./", 2) == 0)
+ (void) strcpy(canonname, "");
+ else if (rawname[0] == '/')
+ (void) strcpy(canonname, ".");
+ else
+ (void) strcpy(canonname, "./");
+ (void) strcat(canonname, rawname);
+ /*
+ * Eliminate multiple and trailing '/'s
+ */
+ for (cp = np = canonname; *np != '\0'; cp++) {
+ *cp = *np++;
+ while (*cp == '/' && *np == '/')
+ np++;
+ }
+ *cp = '\0';
+ if (*--cp == '/')
+ *cp = '\0';
+ /*
+ * Eliminate extraneous "." and ".." from pathnames.
+ */
+ for (np = canonname; *np != '\0'; ) {
+ np++;
+ cp = np;
+ while (*np != '/' && *np != '\0')
+ np++;
+ if (np - cp == 1 && *cp == '.') {
+ cp--;
+ (void) strcpy(cp, np);
+ np = cp;
+ }
+ if (np - cp == 2 && strncmp(cp, "..", 2) == 0) {
+ cp--;
+ while (cp > &canonname[1] && *--cp != '/')
+ /* find beginning of name */;
+ (void) strcpy(cp, np);
+ np = cp;
+ }
+ }
+}
+
+/*
+ * Do an "ls" style listing of a directory
+ */
+static void
+printlist(name, basename)
+ char *name;
+ char *basename;
+{
+ register struct afile *fp, *list, *listp;
+ register struct direct *dp;
+ struct afile single;
+ RST_DIR *dirp;
+ int entries, len;
+
+ dp = pathsearch(name);
+ if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0))
+ return;
+ if ((dirp = rst_opendir(name)) == NULL) {
+ entries = 1;
+ list = &single;
+ mkentry(dp, list);
+ len = strlen(basename) + 1;
+ if (strlen(name) - len > single.len) {
+ freename(single.fname);
+ single.fname = savename(&name[len]);
+ single.len = strlen(single.fname);
+ }
+ } else {
+ entries = 0;
+ while (dp = rst_readdir(dirp))
+ entries++;
+ rst_closedir(dirp);
+ list = (struct afile *)malloc(entries * sizeof(struct afile));
+ if (list == NULL) {
+ fprintf(stderr, "ls: out of memory\n");
+ return;
+ }
+ if ((dirp = rst_opendir(name)) == NULL)
+ panic("directory reopen failed\n");
+ fprintf(stderr, "%s:\n", name);
+ entries = 0;
+ listp = list;
+ while (dp = rst_readdir(dirp)) {
+ if (dp == NULL || dp->d_ino == 0)
+ break;
+ if (!dflag && TSTINO(dp->d_ino, dumpmap) == 0)
+ continue;
+ if (vflag == 0 &&
+ (strcmp(dp->d_name, ".") == 0 ||
+ strcmp(dp->d_name, "..") == 0))
+ continue;
+ mkentry(dp, listp++);
+ entries++;
+ }
+ rst_closedir(dirp);
+ if (entries == 0) {
+ fprintf(stderr, "\n");
+ free(list);
+ return;
+ }
+ qsort((char *)list, entries, sizeof(struct afile), fcmp);
+ }
+ formatf(list, entries);
+ if (dirp != NULL) {
+ for (fp = listp - 1; fp >= list; fp--)
+ freename(fp->fname);
+ fprintf(stderr, "\n");
+ free(list);
+ }
+}
+
+/*
+ * Read the contents of a directory.
+ */
+static void
+mkentry(dp, fp)
+ struct direct *dp;
+ register struct afile *fp;
+{
+ char *cp;
+ struct entry *np;
+
+ fp->fnum = dp->d_ino;
+ fp->fname = savename(dp->d_name);
+ for (cp = fp->fname; *cp; cp++)
+ if (!vflag && (*cp < ' ' || *cp >= 0177))
+ *cp = '?';
+ fp->len = cp - fp->fname;
+ if (dflag && TSTINO(fp->fnum, dumpmap) == 0)
+ fp->prefix = '^';
+ else if ((np = lookupino(fp->fnum)) != NULL && (np->e_flags & NEW))
+ fp->prefix = '*';
+ else
+ fp->prefix = ' ';
+ switch(dp->d_type) {
+
+ default:
+ fprintf(stderr, "Warning: undefined file type %d\n",
+ dp->d_type);
+ /* fall through */
+ case DT_REG:
+ fp->postfix = ' ';
+ break;
+
+ case DT_LNK:
+ fp->postfix = '@';
+ break;
+
+ case DT_FIFO:
+ case DT_SOCK:
+ fp->postfix = '=';
+ break;
+
+ case DT_CHR:
+ case DT_BLK:
+ fp->postfix = '#';
+ break;
+
+ case DT_UNKNOWN:
+ case DT_DIR:
+ if (inodetype(dp->d_ino) == NODE)
+ fp->postfix = '/';
+ else
+ fp->postfix = ' ';
+ break;
+ }
+ return;
+}
+
+/*
+ * Print out a pretty listing of a directory
+ */
+static void
+formatf(list, nentry)
+ register struct afile *list;
+ int nentry;
+{
+ register struct afile *fp, *endlist;
+ int width, bigino, haveprefix, havepostfix;
+ int i, j, w, precision, columns, lines;
+
+ width = 0;
+ haveprefix = 0;
+ havepostfix = 0;
+ bigino = ROOTINO;
+ endlist = &list[nentry];
+ for (fp = &list[0]; fp < endlist; fp++) {
+ if (bigino < fp->fnum)
+ bigino = fp->fnum;
+ if (width < fp->len)
+ width = fp->len;
+ if (fp->prefix != ' ')
+ haveprefix = 1;
+ if (fp->postfix != ' ')
+ havepostfix = 1;
+ }
+ if (haveprefix)
+ width++;
+ if (havepostfix)
+ width++;
+ if (vflag) {
+ for (precision = 0, i = bigino; i > 0; i /= 10)
+ precision++;
+ width += precision + 1;
+ }
+ width++;
+ columns = 81 / width;
+ if (columns == 0)
+ columns = 1;
+ lines = (nentry + columns - 1) / columns;
+ for (i = 0; i < lines; i++) {
+ for (j = 0; j < columns; j++) {
+ fp = &list[j * lines + i];
+ if (vflag) {
+ fprintf(stderr, "%*d ", precision, fp->fnum);
+ fp->len += precision + 1;
+ }
+ if (haveprefix) {
+ putc(fp->prefix, stderr);
+ fp->len++;
+ }
+ fprintf(stderr, "%s", fp->fname);
+ if (havepostfix) {
+ putc(fp->postfix, stderr);
+ fp->len++;
+ }
+ if (fp + lines >= endlist) {
+ fprintf(stderr, "\n");
+ break;
+ }
+ for (w = fp->len; w < width; w++)
+ putc(' ', stderr);
+ }
+ }
+}
+
+/*
+ * Skip over directory entries that are not on the tape
+ *
+ * First have to get definition of a dirent.
+ */
+#undef DIRBLKSIZ
+#include <dirent.h>
+#undef d_ino
+
+struct dirent *
+glob_readdir(dirp)
+ RST_DIR *dirp;
+{
+ struct direct *dp;
+ static struct dirent adirent;
+
+ while ((dp = rst_readdir(dirp)) != NULL) {
+ if (dp->d_ino == 0)
+ continue;
+ if (dflag || TSTINO(dp->d_ino, dumpmap))
+ break;
+ }
+ if (dp == NULL)
+ return (NULL);
+ adirent.d_fileno = dp->d_ino;
+ adirent.d_namlen = dp->d_namlen;
+ bcopy(dp->d_name, adirent.d_name, dp->d_namlen + 1);
+ return (&adirent);
+}
+
+/*
+ * Return st_mode information in response to stat or lstat calls
+ */
+static int
+glob_stat(name, stp)
+ const char *name;
+ struct stat *stp;
+{
+ register struct direct *dp;
+
+ dp = pathsearch(name);
+ if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0))
+ return (-1);
+ if (inodetype(dp->d_ino) == NODE)
+ stp->st_mode = IFDIR;
+ else
+ stp->st_mode = IFREG;
+ return (0);
+}
+
+/*
+ * Comparison routine for qsort.
+ */
+static int
+fcmp(f1, f2)
+ register const void *f1, *f2;
+{
+ return (strcmp(((struct afile *)f1)->fname,
+ ((struct afile *)f2)->fname));
+}
+
+/*
+ * respond to interrupts
+ */
+void
+onintr(signo)
+ int signo;
+{
+ if (command == 'i' && runshell)
+ longjmp(reset, 1);
+ if (reply("restore interrupted, continue") == FAIL)
+ done(1);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 05:57:46 +0000