dirs.c revision 144597
1/* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. 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 * 4. 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#ifndef lint 36#if 0 37static char sccsid[] = "@(#)dirs.c 8.7 (Berkeley) 5/1/95"; 38#endif 39static const char rcsid[] = 40 "$FreeBSD: head/sbin/restore/dirs.c 144597 2005-04-03 16:35:58Z imp $"; 41#endif /* not lint */ 42 43#include <sys/param.h> 44#include <sys/file.h> 45#include <sys/stat.h> 46#include <sys/time.h> 47 48#include <ufs/ufs/dinode.h> 49#include <ufs/ufs/dir.h> 50#include <protocols/dumprestore.h> 51 52#include <err.h> 53#include <errno.h> 54#include <limits.h> 55#include <paths.h> 56#include <stdio.h> 57#include <stdlib.h> 58#include <string.h> 59#include <unistd.h> 60 61#include "restore.h" 62#include "extern.h" 63 64/* 65 * Symbol table of directories read from tape. 66 */ 67#define HASHSIZE 1000 68#define INOHASH(val) (val % HASHSIZE) 69struct inotab { 70 struct inotab *t_next; 71 ino_t t_ino; 72 int32_t t_seekpt; 73 int32_t t_size; 74}; 75static struct inotab *inotab[HASHSIZE]; 76 77/* 78 * Information retained about directories. 79 */ 80struct modeinfo { 81 ino_t ino; 82 struct timeval ctimep[2]; 83 struct timeval mtimep[2]; 84 mode_t mode; 85 uid_t uid; 86 gid_t gid; 87 int flags; 88}; 89 90/* 91 * Definitions for library routines operating on directories. 92 */ 93#undef DIRBLKSIZ 94#define DIRBLKSIZ 1024 95struct rstdirdesc { 96 int dd_fd; 97 int32_t dd_loc; 98 int32_t dd_size; 99 char dd_buf[DIRBLKSIZ]; 100}; 101 102/* 103 * Global variables for this file. 104 */ 105static long seekpt; 106static FILE *df, *mf; 107static RST_DIR *dirp; 108static char dirfile[MAXPATHLEN] = "#"; /* No file */ 109static char modefile[MAXPATHLEN] = "#"; /* No file */ 110static char dot[2] = "."; /* So it can be modified */ 111 112static struct inotab *allocinotab(struct context *, long); 113static void flushent(void); 114static struct inotab *inotablookup(ino_t); 115static RST_DIR *opendirfile(const char *); 116static void putdir(char *, long); 117static void putent(struct direct *); 118static void rst_seekdir(RST_DIR *, long, long); 119static long rst_telldir(RST_DIR *); 120static struct direct *searchdir(ino_t, char *); 121 122/* 123 * Extract directory contents, building up a directory structure 124 * on disk for extraction by name. 125 * If genmode is requested, save mode, owner, and times for all 126 * directories on the tape. 127 */ 128void 129extractdirs(int genmode) 130{ 131 struct inotab *itp; 132 struct direct nulldir; 133 int i, fd; 134 const char *tmpdir; 135 136 vprintf(stdout, "Extract directories from tape\n"); 137 if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0') 138 tmpdir = _PATH_TMP; 139 (void) sprintf(dirfile, "%s/rstdir%d", tmpdir, dumpdate); 140 if (command != 'r' && command != 'R') { 141 (void *) strcat(dirfile, "-XXXXXX"); 142 fd = mkstemp(dirfile); 143 } else 144 fd = open(dirfile, O_RDWR|O_CREAT|O_EXCL, 0666); 145 if (fd == -1 || (df = fdopen(fd, "w")) == NULL) { 146 if (fd != -1) 147 close(fd); 148 warn("%s - cannot create directory temporary\nfopen", dirfile); 149 done(1); 150 } 151 if (genmode != 0) { 152 (void) sprintf(modefile, "%s/rstmode%d", tmpdir, dumpdate); 153 if (command != 'r' && command != 'R') { 154 (void *) strcat(modefile, "-XXXXXX"); 155 fd = mkstemp(modefile); 156 } else 157 fd = open(modefile, O_RDWR|O_CREAT|O_EXCL, 0666); 158 if (fd == -1 || (mf = fdopen(fd, "w")) == NULL) { 159 if (fd != -1) 160 close(fd); 161 warn("%s - cannot create modefile\nfopen", modefile); 162 done(1); 163 } 164 } 165 nulldir.d_ino = 0; 166 nulldir.d_type = DT_DIR; 167 nulldir.d_namlen = 1; 168 (void) strcpy(nulldir.d_name, "/"); 169 nulldir.d_reclen = DIRSIZ(0, &nulldir); 170 for (;;) { 171 curfile.name = "<directory file - name unknown>"; 172 curfile.action = USING; 173 if (curfile.mode == 0 || (curfile.mode & IFMT) != IFDIR) { 174 (void) fclose(df); 175 dirp = opendirfile(dirfile); 176 if (dirp == NULL) 177 fprintf(stderr, "opendirfile: %s\n", 178 strerror(errno)); 179 if (mf != NULL) 180 (void) fclose(mf); 181 i = dirlookup(dot); 182 if (i == 0) 183 panic("Root directory is not on tape\n"); 184 return; 185 } 186 itp = allocinotab(&curfile, seekpt); 187 getfile(putdir, xtrnull); 188 putent(&nulldir); 189 flushent(); 190 itp->t_size = seekpt - itp->t_seekpt; 191 } 192} 193 194/* 195 * skip over all the directories on the tape 196 */ 197void 198skipdirs(void) 199{ 200 201 while (curfile.ino && (curfile.mode & IFMT) == IFDIR) { 202 skipfile(); 203 } 204} 205 206/* 207 * Recursively find names and inumbers of all files in subtree 208 * pname and pass them off to be processed. 209 */ 210void 211treescan(char *pname, ino_t ino, long (*todo)(char *, ino_t, int)) 212{ 213 struct inotab *itp; 214 struct direct *dp; 215 int namelen; 216 long bpt; 217 char locname[MAXPATHLEN + 1]; 218 219 itp = inotablookup(ino); 220 if (itp == NULL) { 221 /* 222 * Pname is name of a simple file or an unchanged directory. 223 */ 224 (void) (*todo)(pname, ino, LEAF); 225 return; 226 } 227 /* 228 * Pname is a dumped directory name. 229 */ 230 if ((*todo)(pname, ino, NODE) == FAIL) 231 return; 232 /* 233 * begin search through the directory 234 * skipping over "." and ".." 235 */ 236 (void) strncpy(locname, pname, sizeof(locname) - 1); 237 locname[sizeof(locname) - 1] = '\0'; 238 (void) strncat(locname, "/", sizeof(locname) - strlen(locname)); 239 namelen = strlen(locname); 240 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 241 dp = rst_readdir(dirp); /* "." */ 242 if (dp != NULL && strcmp(dp->d_name, ".") == 0) 243 dp = rst_readdir(dirp); /* ".." */ 244 else 245 fprintf(stderr, "Warning: `.' missing from directory %s\n", 246 pname); 247 if (dp != NULL && strcmp(dp->d_name, "..") == 0) 248 dp = rst_readdir(dirp); /* first real entry */ 249 else 250 fprintf(stderr, "Warning: `..' missing from directory %s\n", 251 pname); 252 bpt = rst_telldir(dirp); 253 /* 254 * a zero inode signals end of directory 255 */ 256 while (dp != NULL) { 257 locname[namelen] = '\0'; 258 if (namelen + dp->d_namlen >= sizeof(locname)) { 259 fprintf(stderr, "%s%s: name exceeds %d char\n", 260 locname, dp->d_name, sizeof(locname) - 1); 261 } else { 262 (void) strncat(locname, dp->d_name, (int)dp->d_namlen); 263 treescan(locname, dp->d_ino, todo); 264 rst_seekdir(dirp, bpt, itp->t_seekpt); 265 } 266 dp = rst_readdir(dirp); 267 bpt = rst_telldir(dirp); 268 } 269} 270 271/* 272 * Lookup a pathname which is always assumed to start from the ROOTINO. 273 */ 274struct direct * 275pathsearch(const char *pathname) 276{ 277 ino_t ino; 278 struct direct *dp; 279 char *path, *name, buffer[MAXPATHLEN]; 280 281 strcpy(buffer, pathname); 282 path = buffer; 283 ino = ROOTINO; 284 while (*path == '/') 285 path++; 286 dp = NULL; 287 while ((name = strsep(&path, "/")) != NULL && *name != '\0') { 288 if ((dp = searchdir(ino, name)) == NULL) 289 return (NULL); 290 ino = dp->d_ino; 291 } 292 return (dp); 293} 294 295/* 296 * Lookup the requested name in directory inum. 297 * Return its inode number if found, zero if it does not exist. 298 */ 299static struct direct * 300searchdir(ino_t inum, char *name) 301{ 302 struct direct *dp; 303 struct inotab *itp; 304 int len; 305 306 itp = inotablookup(inum); 307 if (itp == NULL) 308 return (NULL); 309 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 310 len = strlen(name); 311 do { 312 dp = rst_readdir(dirp); 313 if (dp == NULL) 314 return (NULL); 315 } while (dp->d_namlen != len || strncmp(dp->d_name, name, len) != 0); 316 return (dp); 317} 318 319/* 320 * Put the directory entries in the directory file 321 */ 322static void 323putdir(char *buf, long size) 324{ 325 struct direct *dp; 326 long loc, i; 327 328 for (loc = 0; loc < size; ) { 329 dp = (struct direct *)(buf + loc); 330 if (Bcvt) 331 swabst((u_char *)"ls", (u_char *) dp); 332 if (oldinofmt && dp->d_ino != 0) { 333#if BYTE_ORDER == BIG_ENDIAN 334 if (Bcvt) 335 dp->d_namlen = dp->d_type; 336#else 337 if (!Bcvt && dp->d_namlen == 0) 338 dp->d_namlen = dp->d_type; 339#endif 340 dp->d_type = DT_UNKNOWN; 341 } 342 i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1)); 343 if ((dp->d_reclen & 0x3) != 0 || 344 dp->d_reclen > i || 345 dp->d_reclen < DIRSIZ(0, dp) 346#if NAME_MAX < 255 347 || dp->d_namlen > NAME_MAX 348#endif 349 ) { 350 vprintf(stdout, "Mangled directory: "); 351 if ((dp->d_reclen & 0x3) != 0) 352 vprintf(stdout, 353 "reclen not multiple of 4 "); 354 if (dp->d_reclen < DIRSIZ(0, dp)) 355 vprintf(stdout, 356 "reclen less than DIRSIZ (%d < %d) ", 357 dp->d_reclen, DIRSIZ(0, dp)); 358#if NAME_MAX < 255 359 if (dp->d_namlen > NAME_MAX) 360 vprintf(stdout, 361 "reclen name too big (%d > %d) ", 362 dp->d_namlen, NAME_MAX); 363#endif 364 vprintf(stdout, "\n"); 365 loc += i; 366 continue; 367 } 368 loc += dp->d_reclen; 369 if (dp->d_ino != 0) { 370 putent(dp); 371 } 372 } 373} 374 375/* 376 * These variables are "local" to the following two functions. 377 */ 378char dirbuf[DIRBLKSIZ]; 379long dirloc = 0; 380long prev = 0; 381 382/* 383 * add a new directory entry to a file. 384 */ 385static void 386putent(struct direct *dp) 387{ 388 dp->d_reclen = DIRSIZ(0, dp); 389 if (dirloc + dp->d_reclen > DIRBLKSIZ) { 390 ((struct direct *)(dirbuf + prev))->d_reclen = 391 DIRBLKSIZ - prev; 392 (void) fwrite(dirbuf, 1, DIRBLKSIZ, df); 393 dirloc = 0; 394 } 395 memmove(dirbuf + dirloc, dp, (long)dp->d_reclen); 396 prev = dirloc; 397 dirloc += dp->d_reclen; 398} 399 400/* 401 * flush out a directory that is finished. 402 */ 403static void 404flushent(void) 405{ 406 ((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev; 407 (void) fwrite(dirbuf, (int)dirloc, 1, df); 408 seekpt = ftell(df); 409 dirloc = 0; 410} 411 412/* 413 * Seek to an entry in a directory. 414 * Only values returned by rst_telldir should be passed to rst_seekdir. 415 * This routine handles many directories in a single file. 416 * It takes the base of the directory in the file, plus 417 * the desired seek offset into it. 418 */ 419static void 420rst_seekdir(RST_DIR *dirp, long loc, long base) 421{ 422 423 if (loc == rst_telldir(dirp)) 424 return; 425 loc -= base; 426 if (loc < 0) 427 fprintf(stderr, "bad seek pointer to rst_seekdir %ld\n", loc); 428 (void) lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), SEEK_SET); 429 dirp->dd_loc = loc & (DIRBLKSIZ - 1); 430 if (dirp->dd_loc != 0) 431 dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ); 432} 433 434/* 435 * get next entry in a directory. 436 */ 437struct direct * 438rst_readdir(RST_DIR *dirp) 439{ 440 struct direct *dp; 441 442 for (;;) { 443 if (dirp->dd_loc == 0) { 444 dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, 445 DIRBLKSIZ); 446 if (dirp->dd_size <= 0) { 447 dprintf(stderr, "error reading directory\n"); 448 return (NULL); 449 } 450 } 451 if (dirp->dd_loc >= dirp->dd_size) { 452 dirp->dd_loc = 0; 453 continue; 454 } 455 dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc); 456 if (dp->d_reclen == 0 || 457 dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) { 458 dprintf(stderr, "corrupted directory: bad reclen %d\n", 459 dp->d_reclen); 460 return (NULL); 461 } 462 dirp->dd_loc += dp->d_reclen; 463 if (dp->d_ino == 0 && strcmp(dp->d_name, "/") == 0) 464 return (NULL); 465 if (dp->d_ino >= maxino) { 466 dprintf(stderr, "corrupted directory: bad inum %d\n", 467 dp->d_ino); 468 continue; 469 } 470 return (dp); 471 } 472} 473 474/* 475 * Simulate the opening of a directory 476 */ 477void * 478rst_opendir(const char *name) 479{ 480 struct inotab *itp; 481 RST_DIR *dirp; 482 ino_t ino; 483 484 if ((ino = dirlookup(name)) > 0 && 485 (itp = inotablookup(ino)) != NULL) { 486 dirp = opendirfile(dirfile); 487 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 488 return (dirp); 489 } 490 return (NULL); 491} 492 493/* 494 * In our case, there is nothing to do when closing a directory. 495 */ 496void 497rst_closedir(void *arg) 498{ 499 RST_DIR *dirp; 500 501 dirp = arg; 502 (void)close(dirp->dd_fd); 503 free(dirp); 504 return; 505} 506 507/* 508 * Simulate finding the current offset in the directory. 509 */ 510static long 511rst_telldir(RST_DIR *dirp) 512{ 513 return ((long)lseek(dirp->dd_fd, 514 (off_t)0, SEEK_CUR) - dirp->dd_size + dirp->dd_loc); 515} 516 517/* 518 * Open a directory file. 519 */ 520static RST_DIR * 521opendirfile(const char *name) 522{ 523 RST_DIR *dirp; 524 int fd; 525 526 if ((fd = open(name, O_RDONLY)) == -1) 527 return (NULL); 528 if ((dirp = malloc(sizeof(RST_DIR))) == NULL) { 529 (void)close(fd); 530 return (NULL); 531 } 532 dirp->dd_fd = fd; 533 dirp->dd_loc = 0; 534 return (dirp); 535} 536 537/* 538 * Set the mode, owner, and times for all new or changed directories 539 */ 540void 541setdirmodes(int flags) 542{ 543 FILE *mf; 544 struct modeinfo node; 545 struct entry *ep; 546 char *cp; 547 const char *tmpdir; 548 549 vprintf(stdout, "Set directory mode, owner, and times.\n"); 550 if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0') 551 tmpdir = _PATH_TMP; 552 if (command == 'r' || command == 'R') 553 (void) sprintf(modefile, "%s/rstmode%d", tmpdir, dumpdate); 554 if (modefile[0] == '#') { 555 panic("modefile not defined\n"); 556 fprintf(stderr, "directory mode, owner, and times not set\n"); 557 return; 558 } 559 mf = fopen(modefile, "r"); 560 if (mf == NULL) { 561 fprintf(stderr, "fopen: %s\n", strerror(errno)); 562 fprintf(stderr, "cannot open mode file %s\n", modefile); 563 fprintf(stderr, "directory mode, owner, and times not set\n"); 564 return; 565 } 566 clearerr(mf); 567 for (;;) { 568 (void) fread((char *)&node, 1, sizeof(struct modeinfo), mf); 569 if (feof(mf)) 570 break; 571 ep = lookupino(node.ino); 572 if (command == 'i' || command == 'x') { 573 if (ep == NULL) 574 continue; 575 if ((flags & FORCE) == 0 && ep->e_flags & EXISTED) { 576 ep->e_flags &= ~NEW; 577 continue; 578 } 579 if (node.ino == ROOTINO && 580 reply("set owner/mode for '.'") == FAIL) 581 continue; 582 } 583 if (ep == NULL) { 584 panic("cannot find directory inode %d\n", node.ino); 585 } else { 586 cp = myname(ep); 587 if (!Nflag) { 588 (void) chown(cp, node.uid, node.gid); 589 (void) chmod(cp, node.mode); 590 utimes(cp, node.ctimep); 591 utimes(cp, node.mtimep); 592 (void) chflags(cp, node.flags); 593 } 594 ep->e_flags &= ~NEW; 595 } 596 } 597 if (ferror(mf)) 598 panic("error setting directory modes\n"); 599 (void) fclose(mf); 600} 601 602/* 603 * Generate a literal copy of a directory. 604 */ 605int 606genliteraldir(char *name, ino_t ino) 607{ 608 struct inotab *itp; 609 int ofile, dp, i, size; 610 char buf[BUFSIZ]; 611 612 itp = inotablookup(ino); 613 if (itp == NULL) 614 panic("Cannot find directory inode %d named %s\n", ino, name); 615 if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) { 616 fprintf(stderr, "%s: ", name); 617 (void) fflush(stderr); 618 fprintf(stderr, "cannot create file: %s\n", strerror(errno)); 619 return (FAIL); 620 } 621 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); 622 dp = dup(dirp->dd_fd); 623 for (i = itp->t_size; i > 0; i -= BUFSIZ) { 624 size = i < BUFSIZ ? i : BUFSIZ; 625 if (read(dp, buf, (int) size) == -1) { 626 fprintf(stderr, 627 "write error extracting inode %d, name %s\n", 628 curfile.ino, curfile.name); 629 fprintf(stderr, "read: %s\n", strerror(errno)); 630 done(1); 631 } 632 if (!Nflag && write(ofile, buf, (int) size) == -1) { 633 fprintf(stderr, 634 "write error extracting inode %d, name %s\n", 635 curfile.ino, curfile.name); 636 fprintf(stderr, "write: %s\n", strerror(errno)); 637 done(1); 638 } 639 } 640 (void) close(dp); 641 (void) close(ofile); 642 return (GOOD); 643} 644 645/* 646 * Determine the type of an inode 647 */ 648int 649inodetype(ino_t ino) 650{ 651 struct inotab *itp; 652 653 itp = inotablookup(ino); 654 if (itp == NULL) 655 return (LEAF); 656 return (NODE); 657} 658 659/* 660 * Allocate and initialize a directory inode entry. 661 * If requested, save its pertinent mode, owner, and time info. 662 */ 663static struct inotab * 664allocinotab(struct context *ctxp, long seekpt) 665{ 666 struct inotab *itp; 667 struct modeinfo node; 668 669 itp = calloc(1, sizeof(struct inotab)); 670 if (itp == NULL) 671 panic("no memory directory table\n"); 672 itp->t_next = inotab[INOHASH(ctxp->ino)]; 673 inotab[INOHASH(ctxp->ino)] = itp; 674 itp->t_ino = ctxp->ino; 675 itp->t_seekpt = seekpt; 676 if (mf == NULL) 677 return (itp); 678 node.ino = ctxp->ino; 679 node.mtimep[0].tv_sec = ctxp->atime_sec; 680 node.mtimep[0].tv_usec = ctxp->atime_nsec / 1000; 681 node.mtimep[1].tv_sec = ctxp->mtime_sec; 682 node.mtimep[1].tv_usec = ctxp->mtime_nsec / 1000; 683 node.ctimep[0].tv_sec = ctxp->atime_sec; 684 node.ctimep[0].tv_usec = ctxp->atime_nsec / 1000; 685 node.ctimep[1].tv_sec = ctxp->birthtime_sec; 686 node.ctimep[1].tv_usec = ctxp->birthtime_nsec / 1000; 687 node.mode = ctxp->mode; 688 node.flags = ctxp->file_flags; 689 node.uid = ctxp->uid; 690 node.gid = ctxp->gid; 691 (void) fwrite((char *)&node, 1, sizeof(struct modeinfo), mf); 692 return (itp); 693} 694 695/* 696 * Look up an inode in the table of directories 697 */ 698static struct inotab * 699inotablookup(ino_t ino) 700{ 701 struct inotab *itp; 702 703 for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next) 704 if (itp->t_ino == ino) 705 return (itp); 706 return (NULL); 707} 708 709/* 710 * Clean up and exit 711 */ 712void 713done(int exitcode) 714{ 715 716 closemt(); 717 if (modefile[0] != '#') 718 (void) unlink(modefile); 719 if (dirfile[0] != '#') 720 (void) unlink(dirfile); 721 exit(exitcode); 722} 723