1 /* $NetBSD: interactive.c,v 1.19 2003/08/07 10:04:37 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1985, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)interactive.c 8.5 (Berkeley) 5/1/95"; 36 #else 37 __RCSID("$NetBSD: interactive.c,v 1.19 2003/08/07 10:04:37 agc Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <sys/param.h> 42 #include <sys/time.h> 43 #include <sys/stat.h> 44 45 #include <ufs/ufs/dinode.h> 46 #include <ufs/ufs/dir.h> 47 #include <ufs/ffs/fs.h> 48 #include <protocols/dumprestore.h> 49 50 #include <setjmp.h> 51 #include <glob.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 56 #include "restore.h" 57 #include "extern.h" 58 59 #define round(a, b) (((a) + (b) - 1) / (b) * (b)) 60 61 /* 62 * Things to handle interruptions. 63 */ 64 static int runshell; 65 static jmp_buf reset; 66 static char *nextarg = NULL; 67 68 /* 69 * Structure and routines associated with listing directories. 70 */ 71 struct afile { 72 ino_t fnum; /* inode number of file */ 73 char *fname; /* file name */ 74 short len; /* name length */ 75 char prefix; /* prefix character */ 76 char postfix; /* postfix character */ 77 }; 78 struct arglist { 79 int freeglob; /* glob structure needs to be freed */ 80 int argcnt; /* next globbed argument to return */ 81 glob_t glob; /* globbing information */ 82 char *cmd; /* the current command */ 83 }; 84 85 static char *copynext __P((char *, char *)); 86 static int fcmp __P((const void *, const void *)); 87 static void formatf __P((struct afile *, int)); 88 static void getcmd __P((char *, char *, char *, struct arglist *)); 89 struct dirent *glob_readdir __P((RST_DIR *dirp)); 90 static int glob_stat __P((const char *, struct stat *)); 91 static void mkentry __P((char *, struct direct *, struct afile *)); 92 static void printlist __P((char *, char *)); 93 94 /* 95 * Read and execute commands from the terminal. 96 */ 97 void 98 runcmdshell() 99 { 100 struct entry *np; 101 ino_t ino; 102 struct arglist arglist; 103 char curdir[MAXPATHLEN]; 104 char name[MAXPATHLEN]; 105 char cmd[BUFSIZ]; 106 107 arglist.freeglob = 0; 108 arglist.argcnt = 0; 109 arglist.glob.gl_flags = GLOB_ALTDIRFUNC; 110 arglist.glob.gl_opendir = (void *)rst_opendir; 111 arglist.glob.gl_readdir = (void *)glob_readdir; 112 arglist.glob.gl_closedir = (void *)rst_closedir; 113 arglist.glob.gl_lstat = glob_stat; 114 arglist.glob.gl_stat = glob_stat; 115 canon("/", curdir); 116 loop: 117 if (setjmp(reset) != 0) { 118 if (arglist.freeglob != 0) { 119 arglist.freeglob = 0; 120 arglist.argcnt = 0; 121 globfree(&arglist.glob); 122 } 123 nextarg = NULL; 124 volno = 0; 125 } 126 runshell = 1; 127 getcmd(curdir, cmd, name, &arglist); 128 switch (cmd[0]) { 129 /* 130 * Add elements to the extraction list. 131 */ 132 case 'a': 133 if (strncmp(cmd, "add", strlen(cmd)) != 0) 134 goto bad; 135 ino = dirlookup(name); 136 if (ino == 0) 137 break; 138 if (mflag) 139 pathcheck(name); 140 treescan(name, ino, addfile); 141 break; 142 /* 143 * Change working directory. 144 */ 145 case 'c': 146 if (strncmp(cmd, "cd", strlen(cmd)) != 0) 147 goto bad; 148 ino = dirlookup(name); 149 if (ino == 0) 150 break; 151 if (inodetype(ino) == LEAF) { 152 fprintf(stderr, "%s: not a directory\n", name); 153 break; 154 } 155 (void) strcpy(curdir, name); 156 break; 157 /* 158 * Delete elements from the extraction list. 159 */ 160 case 'd': 161 if (strncmp(cmd, "delete", strlen(cmd)) != 0) 162 goto bad; 163 np = lookupname(name); 164 if (np == NULL || (np->e_flags & NEW) == 0) { 165 fprintf(stderr, "%s: not on extraction list\n", name); 166 break; 167 } 168 treescan(name, np->e_ino, deletefile); 169 break; 170 /* 171 * Extract the requested list. 172 */ 173 case 'e': 174 if (strncmp(cmd, "extract", strlen(cmd)) != 0) 175 goto bad; 176 createfiles(); 177 createlinks(); 178 setdirmodes(0); 179 if (dflag) 180 checkrestore(); 181 volno = 0; 182 break; 183 /* 184 * List available commands. 185 */ 186 case 'h': 187 if (strncmp(cmd, "help", strlen(cmd)) != 0) 188 goto bad; 189 case '?': 190 fprintf(stderr, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", 191 "Available commands are:\n", 192 "\tls [arg] - list directory\n", 193 "\tcd arg - change directory\n", 194 "\tpwd - print current directory\n", 195 "\tadd [arg] - add `arg' to list of", 196 " files to be extracted\n", 197 "\tdelete [arg] - delete `arg' from", 198 " list of files to be extracted\n", 199 "\textract - extract requested files\n", 200 "\tsetmodes - set modes of requested directories\n", 201 "\tquit or xit - immediately exit program\n", 202 "\twhat - list dump header information\n", 203 "\tverbose - toggle verbose flag", 204 " (useful with ``ls'')\n", 205 "\thelp or `?' - print this list\n", 206 "\tDebug - turn on debugging\n", 207 "If no `arg' is supplied, the current", 208 " directory is used\n"); 209 break; 210 /* 211 * List a directory. 212 */ 213 case 'l': 214 if (strncmp(cmd, "ls", strlen(cmd)) != 0) 215 goto bad; 216 printlist(name, curdir); 217 break; 218 /* 219 * Print current directory. 220 */ 221 case 'p': 222 if (strncmp(cmd, "pwd", strlen(cmd)) != 0) 223 goto bad; 224 if (curdir[1] == '\0') 225 fprintf(stderr, "/\n"); 226 else 227 fprintf(stderr, "%s\n", &curdir[1]); 228 break; 229 /* 230 * Quit. 231 */ 232 case 'q': 233 if (strncmp(cmd, "quit", strlen(cmd)) != 0) 234 goto bad; 235 return; 236 case 'x': 237 if (strncmp(cmd, "xit", strlen(cmd)) != 0) 238 goto bad; 239 return; 240 /* 241 * Toggle verbose mode. 242 */ 243 case 'v': 244 if (strncmp(cmd, "verbose", strlen(cmd)) != 0) 245 goto bad; 246 if (vflag) { 247 fprintf(stderr, "verbose mode off\n"); 248 vflag = 0; 249 break; 250 } 251 fprintf(stderr, "verbose mode on\n"); 252 vflag++; 253 break; 254 /* 255 * Just restore requested directory modes. 256 */ 257 case 's': 258 if (strncmp(cmd, "setmodes", strlen(cmd)) != 0) 259 goto bad; 260 setdirmodes(FORCE); 261 break; 262 /* 263 * Print out dump header information. 264 */ 265 case 'w': 266 if (strncmp(cmd, "what", strlen(cmd)) != 0) 267 goto bad; 268 printdumpinfo(); 269 break; 270 /* 271 * Turn on debugging. 272 */ 273 case 'D': 274 if (strncmp(cmd, "Debug", strlen(cmd)) != 0) 275 goto bad; 276 if (dflag) { 277 fprintf(stderr, "debugging mode off\n"); 278 dflag = 0; 279 break; 280 } 281 fprintf(stderr, "debugging mode on\n"); 282 dflag++; 283 break; 284 /* 285 * Unknown command. 286 */ 287 default: 288 bad: 289 fprintf(stderr, "%s: unknown command; type ? for help\n", cmd); 290 break; 291 } 292 goto loop; 293 } 294 295 /* 296 * Read and parse an interactive command. 297 * The first word on the line is assigned to "cmd". If 298 * there are no arguments on the command line, then "curdir" 299 * is returned as the argument. If there are arguments 300 * on the line they are returned one at a time on each 301 * successive call to getcmd. Each argument is first assigned 302 * to "name". If it does not start with "/" the pathname in 303 * "curdir" is prepended to it. Finally "canon" is called to 304 * eliminate any embedded ".." components. 305 */ 306 static void 307 getcmd(curdir, cmd, name, ap) 308 char *curdir, *cmd, *name; 309 struct arglist *ap; 310 { 311 char *cp; 312 static char input[BUFSIZ]; 313 char output[BUFSIZ]; 314 int globretval; 315 # define rawname input /* save space by reusing input buffer */ 316 317 /* 318 * Check to see if still processing arguments. 319 */ 320 if (ap->argcnt > 0) 321 goto retnext; 322 if (nextarg != NULL) 323 goto getnext; 324 /* 325 * Read a command line and trim off trailing white space. 326 */ 327 do { 328 fprintf(stderr, "%s > ", getprogname()); 329 (void) fflush(stderr); 330 (void) fgets(input, BUFSIZ, terminal); 331 } while (!feof(terminal) && input[0] == '\n'); 332 if (feof(terminal)) { 333 (void) strcpy(cmd, "quit"); 334 return; 335 } 336 for (cp = &input[strlen(input) - 2]; *cp == ' ' || *cp == '\t'; cp--) 337 /* trim off trailing white space and newline */; 338 *++cp = '\0'; 339 /* 340 * Copy the command into "cmd". 341 */ 342 cp = copynext(input, cmd); 343 ap->cmd = cmd; 344 /* 345 * If no argument, use curdir as the default. 346 */ 347 if (*cp == '\0') { 348 (void) strcpy(name, curdir); 349 return; 350 } 351 nextarg = cp; 352 /* 353 * Find the next argument. 354 */ 355 getnext: 356 cp = copynext(nextarg, rawname); 357 if (*cp == '\0') 358 nextarg = NULL; 359 else 360 nextarg = cp; 361 /* 362 * If it is an absolute pathname, canonicalize it and return it. 363 */ 364 if (rawname[0] == '/') { 365 canon(rawname, name); 366 } else { 367 /* 368 * For relative pathnames, prepend the current directory to 369 * it then canonicalize and return it. 370 */ 371 (void) strcpy(output, curdir); 372 (void) strcat(output, "/"); 373 (void) strcat(output, rawname); 374 canon(output, name); 375 } 376 if ((globretval = glob(name, GLOB_ALTDIRFUNC, NULL, &ap->glob)) < 0) { 377 fprintf(stderr, "%s: %s: ", ap->cmd, name); 378 switch (globretval) { 379 case GLOB_NOSPACE: 380 fprintf(stderr, "out of memory\n"); 381 break; 382 case GLOB_NOMATCH: 383 fprintf(stderr, "no filename match.\n"); 384 break; 385 case GLOB_ABORTED: 386 fprintf(stderr, "glob() aborted.\n"); 387 break; 388 default: 389 fprintf(stderr, "unknown error!\n"); 390 break; 391 } 392 } 393 if (ap->glob.gl_pathc == 0) 394 return; 395 ap->freeglob = 1; 396 ap->argcnt = ap->glob.gl_pathc; 397 398 retnext: 399 strcpy(name, ap->glob.gl_pathv[ap->glob.gl_pathc - ap->argcnt]); 400 if (--ap->argcnt == 0) { 401 ap->freeglob = 0; 402 globfree(&ap->glob); 403 } 404 # undef rawname 405 } 406 407 /* 408 * Strip off the next token of the input. 409 */ 410 static char * 411 copynext(input, output) 412 char *input, *output; 413 { 414 char *cp, *bp; 415 char quote; 416 417 for (cp = input; *cp == ' ' || *cp == '\t'; cp++) 418 /* skip to argument */; 419 bp = output; 420 while (*cp != ' ' && *cp != '\t' && *cp != '\0') { 421 /* 422 * Handle back slashes. 423 */ 424 if (*cp == '\\') { 425 if (*++cp == '\0') { 426 fprintf(stderr, 427 "command lines cannot be continued\n"); 428 continue; 429 } 430 *bp++ = *cp++; 431 continue; 432 } 433 /* 434 * The usual unquoted case. 435 */ 436 if (*cp != '\'' && *cp != '"') { 437 *bp++ = *cp++; 438 continue; 439 } 440 /* 441 * Handle single and double quotes. 442 */ 443 quote = *cp++; 444 while (*cp != quote && *cp != '\0') 445 *bp++ = *cp++; 446 if (*cp++ == '\0') { 447 fprintf(stderr, "missing %c\n", quote); 448 cp--; 449 continue; 450 } 451 } 452 *bp = '\0'; 453 return (cp); 454 } 455 456 /* 457 * Canonicalize file names to always start with ``./'' and 458 * remove any imbedded "." and ".." components. 459 */ 460 void 461 canon(rawname, canonname) 462 char *rawname, *canonname; 463 { 464 char *cp, *np; 465 466 if (strcmp(rawname, ".") == 0 || strncmp(rawname, "./", 2) == 0) 467 (void) strcpy(canonname, ""); 468 else if (rawname[0] == '/') 469 (void) strcpy(canonname, "."); 470 else 471 (void) strcpy(canonname, "./"); 472 (void) strcat(canonname, rawname); 473 /* 474 * Eliminate multiple and trailing '/'s 475 */ 476 for (cp = np = canonname; *np != '\0'; cp++) { 477 *cp = *np++; 478 while (*cp == '/' && *np == '/') 479 np++; 480 } 481 *cp = '\0'; 482 if (*--cp == '/') 483 *cp = '\0'; 484 /* 485 * Eliminate extraneous "." and ".." from pathnames. 486 */ 487 for (np = canonname; *np != '\0'; ) { 488 np++; 489 cp = np; 490 while (*np != '/' && *np != '\0') 491 np++; 492 if (np - cp == 1 && *cp == '.') { 493 cp--; 494 (void) strcpy(cp, np); 495 np = cp; 496 } 497 if (np - cp == 2 && strncmp(cp, "..", 2) == 0) { 498 cp--; 499 while (cp > &canonname[1] && *--cp != '/') 500 /* find beginning of name */; 501 (void) strcpy(cp, np); 502 np = cp; 503 } 504 } 505 } 506 507 /* 508 * Do an "ls" style listing of a directory 509 */ 510 static void 511 printlist(name, basename) 512 char *name; 513 char *basename; 514 { 515 struct afile *fp, *list, *listp; 516 struct direct *dp; 517 struct afile single; 518 RST_DIR *dirp; 519 int entries, len, namelen; 520 char locname[MAXPATHLEN + 1]; 521 522 dp = pathsearch(name); 523 listp = NULL; 524 if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0) || 525 (!vflag && dp->d_ino == WINO)) 526 return; 527 if ((dirp = rst_opendir(name)) == NULL) { 528 entries = 1; 529 list = &single; 530 mkentry(name, dp, list); 531 len = strlen(basename) + 1; 532 if (strlen(name) - len > single.len) { 533 freename(single.fname); 534 single.fname = savename(&name[len]); 535 single.len = strlen(single.fname); 536 } 537 } else { 538 entries = 0; 539 while ((dp = rst_readdir(dirp)) != NULL) 540 entries++; 541 rst_closedir(dirp); 542 list = (struct afile *)malloc(entries * sizeof(struct afile)); 543 if (list == NULL) { 544 fprintf(stderr, "ls: out of memory\n"); 545 return; 546 } 547 if ((dirp = rst_opendir(name)) == NULL) 548 panic("directory reopen failed\n"); 549 fprintf(stderr, "%s:\n", name); 550 entries = 0; 551 listp = list; 552 (void) strncpy(locname, name, MAXPATHLEN); 553 (void) strncat(locname, "/", MAXPATHLEN); 554 namelen = strlen(locname); 555 while ((dp = rst_readdir(dirp)) != NULL) { 556 if (!dflag && TSTINO(dp->d_ino, dumpmap) == 0) 557 continue; 558 if (!vflag && (dp->d_ino == WINO || 559 strcmp(dp->d_name, ".") == 0 || 560 strcmp(dp->d_name, "..") == 0)) 561 continue; 562 locname[namelen] = '\0'; 563 if (namelen + dp->d_namlen >= MAXPATHLEN) { 564 fprintf(stderr, "%s%s: name exceeds %d char\n", 565 locname, dp->d_name, MAXPATHLEN); 566 } else { 567 (void) strncat(locname, dp->d_name, 568 (int)dp->d_namlen); 569 mkentry(locname, dp, listp++); 570 entries++; 571 } 572 } 573 rst_closedir(dirp); 574 if (entries == 0) { 575 fprintf(stderr, "\n"); 576 free(list); 577 return; 578 } 579 qsort((char *)list, entries, sizeof(struct afile), fcmp); 580 } 581 formatf(list, entries); 582 if (dirp != NULL) { 583 for (fp = listp - 1; fp >= list; fp--) 584 freename(fp->fname); 585 fprintf(stderr, "\n"); 586 free(list); 587 } 588 } 589 590 /* 591 * Read the contents of a directory. 592 */ 593 static void 594 mkentry(name, dp, fp) 595 char *name; 596 struct direct *dp; 597 struct afile *fp; 598 { 599 char *cp; 600 struct entry *np; 601 602 fp->fnum = dp->d_ino; 603 fp->fname = savename(dp->d_name); 604 for (cp = fp->fname; *cp; cp++) 605 if (!vflag && (*cp < ' ' || *cp >= 0177)) 606 *cp = '?'; 607 fp->len = cp - fp->fname; 608 if (dflag && TSTINO(fp->fnum, dumpmap) == 0) 609 fp->prefix = '^'; 610 else if ((np = lookupname(name)) != NULL && (np->e_flags & NEW)) 611 fp->prefix = '*'; 612 else 613 fp->prefix = ' '; 614 switch(dp->d_type) { 615 616 default: 617 fprintf(stderr, "Warning: undefined file type %d\n", 618 dp->d_type); 619 /* fall through */ 620 case DT_REG: 621 fp->postfix = ' '; 622 break; 623 624 case DT_LNK: 625 fp->postfix = '@'; 626 break; 627 628 case DT_FIFO: 629 case DT_SOCK: 630 fp->postfix = '='; 631 break; 632 633 case DT_CHR: 634 case DT_BLK: 635 fp->postfix = '#'; 636 break; 637 638 case DT_WHT: 639 fp->postfix = '%'; 640 break; 641 642 case DT_UNKNOWN: 643 case DT_DIR: 644 if (inodetype(dp->d_ino) == NODE) 645 fp->postfix = '/'; 646 else 647 fp->postfix = ' '; 648 break; 649 } 650 return; 651 } 652 653 /* 654 * Print out a pretty listing of a directory 655 */ 656 static void 657 formatf(list, nentry) 658 struct afile *list; 659 int nentry; 660 { 661 struct afile *fp, *endlist; 662 int width, bigino, haveprefix, havepostfix; 663 int i, j, w, precision, columns, lines; 664 665 width = 0; 666 haveprefix = 0; 667 havepostfix = 0; 668 precision = 0; 669 bigino = ROOTINO; 670 endlist = &list[nentry]; 671 for (fp = &list[0]; fp < endlist; fp++) { 672 if (bigino < fp->fnum) 673 bigino = fp->fnum; 674 if (width < fp->len) 675 width = fp->len; 676 if (fp->prefix != ' ') 677 haveprefix = 1; 678 if (fp->postfix != ' ') 679 havepostfix = 1; 680 } 681 if (haveprefix) 682 width++; 683 if (havepostfix) 684 width++; 685 if (vflag) { 686 for (precision = 0, i = bigino; i > 0; i /= 10) 687 precision++; 688 width += precision + 1; 689 } 690 width++; 691 columns = 81 / width; 692 if (columns == 0) 693 columns = 1; 694 lines = (nentry + columns - 1) / columns; 695 for (i = 0; i < lines; i++) { 696 for (j = 0; j < columns; j++) { 697 fp = &list[j * lines + i]; 698 if (vflag) { 699 fprintf(stderr, "%*d ", precision, fp->fnum); 700 fp->len += precision + 1; 701 } 702 if (haveprefix) { 703 putc(fp->prefix, stderr); 704 fp->len++; 705 } 706 fprintf(stderr, "%s", fp->fname); 707 if (havepostfix) { 708 putc(fp->postfix, stderr); 709 fp->len++; 710 } 711 if (fp + lines >= endlist) { 712 fprintf(stderr, "\n"); 713 break; 714 } 715 for (w = fp->len; w < width; w++) 716 putc(' ', stderr); 717 } 718 } 719 } 720 721 /* 722 * Skip over directory entries that are not on the tape 723 * 724 * First have to get definition of a dirent. 725 */ 726 #undef DIRBLKSIZ 727 #include <dirent.h> 728 #undef d_ino 729 730 struct dirent * 731 glob_readdir(dirp) 732 RST_DIR *dirp; 733 { 734 struct direct *dp; 735 static struct dirent adirent; 736 737 while ((dp = rst_readdir(dirp)) != NULL) { 738 if (!vflag && dp->d_ino == WINO) 739 continue; 740 if (dflag || TSTINO(dp->d_ino, dumpmap)) 741 break; 742 } 743 if (dp == NULL) 744 return (NULL); 745 adirent.d_fileno = dp->d_ino; 746 adirent.d_namlen = dp->d_namlen; 747 memmove(adirent.d_name, dp->d_name, dp->d_namlen + 1); 748 return (&adirent); 749 } 750 751 /* 752 * Return st_mode information in response to stat or lstat calls 753 */ 754 static int 755 glob_stat(name, stp) 756 const char *name; 757 struct stat *stp; 758 { 759 struct direct *dp; 760 761 dp = pathsearch(name); 762 if (dp == NULL || (!dflag && TSTINO(dp->d_ino, dumpmap) == 0) || 763 (!vflag && dp->d_ino == WINO)) 764 return (-1); 765 if (inodetype(dp->d_ino) == NODE) 766 stp->st_mode = S_IFDIR; 767 else 768 stp->st_mode = S_IFREG; 769 return (0); 770 } 771 772 /* 773 * Comparison routine for qsort. 774 */ 775 static int 776 fcmp(f1, f2) 777 const void *f1, *f2; 778 { 779 return (strcmp(((struct afile *)f1)->fname, 780 ((struct afile *)f2)->fname)); 781 } 782 783 /* 784 * respond to interrupts 785 */ 786 void 787 onintr(signo) 788 int signo; 789 { 790 if (command == 'i' && runshell) 791 longjmp(reset, 1); 792 if (reply("restore interrupted, continue") == FAIL) 793 exit(1); 794 } 795