1 /* 2 * Copyright (c) 1987, 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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1987, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #if 0 41 #ifndef lint 42 static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93"; 43 #endif /* not lint */ 44 #endif 45 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 #include <sys/param.h> 50 #include <sys/mman.h> 51 #include <sys/mount.h> 52 #include <sys/stat.h> 53 #include <sys/time.h> 54 #include <sys/wait.h> 55 56 #include <ctype.h> 57 #include <err.h> 58 #include <errno.h> 59 #include <fcntl.h> 60 #include <grp.h> 61 #include <paths.h> 62 #include <pwd.h> 63 #include <stdio.h> 64 #include <stdlib.h> 65 #include <string.h> 66 #include <sysexits.h> 67 #include <unistd.h> 68 69 /* Bootstrap aid - this doesn't exist in most older releases */ 70 #ifndef MAP_FAILED 71 #define MAP_FAILED ((void *)-1) /* from <sys/mman.h> */ 72 #endif 73 74 #define MAX_CMP_SIZE (16 * 1024 * 1024) 75 76 #define DIRECTORY 0x01 /* Tell install it's a directory. */ 77 #define SETFLAGS 0x02 /* Tell install to set flags. */ 78 #define NOCHANGEBITS (UF_IMMUTABLE | UF_APPEND | SF_IMMUTABLE | SF_APPEND) 79 #define BACKUP_SUFFIX ".old" 80 81 struct passwd *pp; 82 struct group *gp; 83 gid_t gid; 84 uid_t uid; 85 int dobackup, docompare, dodir, dopreserve, dostrip, nommap, safecopy, verbose; 86 mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; 87 const char *suffix = BACKUP_SUFFIX; 88 89 void copy(int, const char *, int, const char *, off_t); 90 int compare(int, const char *, size_t, int, const char *, size_t); 91 int create_newfile(const char *, int, struct stat *); 92 int create_tempfile(const char *, char *, size_t); 93 void install(const char *, const char *, u_long, u_int); 94 void install_dir(char *); 95 u_long numeric_id(const char *, const char *); 96 void strip(const char *); 97 int trymmap(int); 98 void usage(void); 99 100 int 101 main(int argc, char *argv[]) 102 { 103 struct stat from_sb, to_sb; 104 mode_t *set; 105 u_long fset; 106 int ch, no_target; 107 u_int iflags; 108 char *flags; 109 const char *group, *owner, *to_name; 110 111 iflags = 0; 112 group = owner = NULL; 113 while ((ch = getopt(argc, argv, "B:bCcdf:g:Mm:o:pSsv")) != -1) 114 switch((char)ch) { 115 case 'B': 116 suffix = optarg; 117 /* FALLTHROUGH */ 118 case 'b': 119 dobackup = 1; 120 break; 121 case 'C': 122 docompare = 1; 123 break; 124 case 'c': 125 /* For backwards compatibility. */ 126 break; 127 case 'd': 128 dodir = 1; 129 break; 130 case 'f': 131 flags = optarg; 132 if (strtofflags(&flags, &fset, NULL)) 133 errx(EX_USAGE, "%s: invalid flag", flags); 134 iflags |= SETFLAGS; 135 break; 136 case 'g': 137 group = optarg; 138 break; 139 case 'M': 140 nommap = 1; 141 break; 142 case 'm': 143 if (!(set = setmode(optarg))) 144 errx(EX_USAGE, "invalid file mode: %s", 145 optarg); 146 mode = getmode(set, 0); 147 free(set); 148 break; 149 case 'o': 150 owner = optarg; 151 break; 152 case 'p': 153 docompare = dopreserve = 1; 154 break; 155 case 'S': 156 safecopy = 1; 157 break; 158 case 's': 159 dostrip = 1; 160 break; 161 case 'v': 162 verbose = 1; 163 break; 164 case '?': 165 default: 166 usage(); 167 } 168 argc -= optind; 169 argv += optind; 170 171 /* some options make no sense when creating directories */ 172 if (dostrip && dodir) { 173 warnx("-d and -s may not be specified together"); 174 usage(); 175 } 176 177 /* must have at least two arguments, except when creating directories */ 178 if (argc == 0 || (argc == 1 && !dodir)) 179 usage(); 180 181 /* need to make a temp copy so we can compare stripped version */ 182 if (docompare && dostrip) 183 safecopy = 1; 184 185 /* get group and owner id's */ 186 if (group != NULL) { 187 if ((gp = getgrnam(group)) != NULL) 188 gid = gp->gr_gid; 189 else 190 gid = (gid_t)numeric_id(group, "group"); 191 } else 192 gid = (gid_t)-1; 193 194 if (owner != NULL) { 195 if ((pp = getpwnam(owner)) != NULL) 196 uid = pp->pw_uid; 197 else 198 uid = (uid_t)numeric_id(owner, "user"); 199 } else 200 uid = (uid_t)-1; 201 202 if (dodir) { 203 for (; *argv != NULL; ++argv) 204 install_dir(*argv); 205 exit(EX_OK); 206 /* NOTREACHED */ 207 } 208 209 no_target = stat(to_name = argv[argc - 1], &to_sb); 210 if (!no_target && S_ISDIR(to_sb.st_mode)) { 211 for (; *argv != to_name; ++argv) 212 install(*argv, to_name, fset, iflags | DIRECTORY); 213 exit(EX_OK); 214 /* NOTREACHED */ 215 } 216 217 /* can't do file1 file2 directory/file */ 218 if (argc != 2) { 219 warnx("wrong number or types of arguments"); 220 usage(); 221 } 222 223 if (!no_target) { 224 if (stat(*argv, &from_sb)) 225 err(EX_OSERR, "%s", *argv); 226 if (!S_ISREG(to_sb.st_mode)) { 227 errno = EFTYPE; 228 err(EX_OSERR, "%s", to_name); 229 } 230 if (to_sb.st_dev == from_sb.st_dev && 231 to_sb.st_ino == from_sb.st_ino) 232 errx(EX_USAGE, 233 "%s and %s are the same file", *argv, to_name); 234 } 235 install(*argv, to_name, fset, iflags); 236 exit(EX_OK); 237 /* NOTREACHED */ 238 } 239 240 u_long 241 numeric_id(const char *name, const char *type) 242 { 243 u_long val; 244 char *ep; 245 246 /* 247 * XXX 248 * We know that uid_t's and gid_t's are unsigned longs. 249 */ 250 errno = 0; 251 val = strtoul(name, &ep, 10); 252 if (errno) 253 err(EX_NOUSER, "%s", name); 254 if (*ep != '\0') 255 errx(EX_NOUSER, "unknown %s %s", type, name); 256 return (val); 257 } 258 259 /* 260 * install -- 261 * build a path name and install the file 262 */ 263 void 264 install(const char *from_name, const char *to_name, u_long fset, u_int flags) 265 { 266 struct stat from_sb, temp_sb, to_sb; 267 struct timeval tvb[2]; 268 int devnull, files_match, from_fd, serrno, target; 269 int tempcopy, temp_fd, to_fd; 270 char backup[MAXPATHLEN], *p, pathbuf[MAXPATHLEN], tempfile[MAXPATHLEN]; 271 272 files_match = 0; 273 from_fd = -1; 274 to_fd = -1; 275 276 /* If try to install NULL file to a directory, fails. */ 277 if (flags & DIRECTORY || strcmp(from_name, _PATH_DEVNULL)) { 278 if (stat(from_name, &from_sb)) 279 err(EX_OSERR, "%s", from_name); 280 if (!S_ISREG(from_sb.st_mode)) { 281 errno = EFTYPE; 282 err(EX_OSERR, "%s", from_name); 283 } 284 /* Build the target path. */ 285 if (flags & DIRECTORY) { 286 (void)snprintf(pathbuf, sizeof(pathbuf), "%s/%s", 287 to_name, 288 (p = strrchr(from_name, '/')) ? ++p : from_name); 289 to_name = pathbuf; 290 } 291 devnull = 0; 292 } else { 293 devnull = 1; 294 } 295 296 target = stat(to_name, &to_sb) == 0; 297 298 /* Only install to regular files. */ 299 if (target && !S_ISREG(to_sb.st_mode)) { 300 errno = EFTYPE; 301 warn("%s", to_name); 302 return; 303 } 304 305 /* Only copy safe if the target exists. */ 306 tempcopy = safecopy && target; 307 308 if (!devnull && (from_fd = open(from_name, O_RDONLY, 0)) < 0) 309 err(EX_OSERR, "%s", from_name); 310 311 /* If we don't strip, we can compare first. */ 312 if (docompare && !dostrip && target) { 313 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 314 err(EX_OSERR, "%s", to_name); 315 if (devnull) 316 files_match = to_sb.st_size == 0; 317 else 318 files_match = !(compare(from_fd, from_name, 319 (size_t)from_sb.st_size, to_fd, 320 to_name, (size_t)to_sb.st_size)); 321 322 /* Close "to" file unless we match. */ 323 if (!files_match) 324 (void)close(to_fd); 325 } 326 327 if (!files_match) { 328 if (tempcopy) { 329 to_fd = create_tempfile(to_name, tempfile, 330 sizeof(tempfile)); 331 if (to_fd < 0) 332 err(EX_OSERR, "%s", tempfile); 333 } else { 334 if ((to_fd = create_newfile(to_name, target, 335 &to_sb)) < 0) 336 err(EX_OSERR, "%s", to_name); 337 if (verbose) 338 (void)printf("install: %s -> %s\n", 339 from_name, to_name); 340 } 341 if (!devnull) 342 copy(from_fd, from_name, to_fd, 343 tempcopy ? tempfile : to_name, from_sb.st_size); 344 } 345 346 if (dostrip) { 347 strip(tempcopy ? tempfile : to_name); 348 349 /* 350 * Re-open our fd on the target, in case we used a strip 351 * that does not work in-place -- like GNU binutils strip. 352 */ 353 close(to_fd); 354 to_fd = open(tempcopy ? tempfile : to_name, O_RDONLY, 0); 355 if (to_fd < 0) 356 err(EX_OSERR, "stripping %s", to_name); 357 } 358 359 /* 360 * Compare the stripped temp file with the target. 361 */ 362 if (docompare && dostrip && target) { 363 temp_fd = to_fd; 364 365 /* Re-open to_fd using the real target name. */ 366 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 367 err(EX_OSERR, "%s", to_name); 368 369 if (fstat(temp_fd, &temp_sb)) { 370 serrno = errno; 371 (void)unlink(tempfile); 372 errno = serrno; 373 err(EX_OSERR, "%s", tempfile); 374 } 375 376 if (compare(temp_fd, tempfile, (size_t)temp_sb.st_size, to_fd, 377 to_name, (size_t)to_sb.st_size) == 0) { 378 /* 379 * If target has more than one link we need to 380 * replace it in order to snap the extra links. 381 * Need to preserve target file times, though. 382 */ 383 if (to_sb.st_nlink != 1) { 384 tvb[0].tv_sec = to_sb.st_atime; 385 tvb[0].tv_usec = 0; 386 tvb[1].tv_sec = to_sb.st_mtime; 387 tvb[1].tv_usec = 0; 388 (void)utimes(tempfile, tvb); 389 } else { 390 files_match = 1; 391 (void)unlink(tempfile); 392 } 393 (void) close(temp_fd); 394 } 395 } 396 397 /* 398 * Move the new file into place if doing a safe copy 399 * and the files are different (or just not compared). 400 */ 401 if (tempcopy && !files_match) { 402 /* Try to turn off the immutable bits. */ 403 if (to_sb.st_flags & NOCHANGEBITS) 404 (void)chflags(to_name, to_sb.st_flags & ~NOCHANGEBITS); 405 if (dobackup) { 406 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", to_name, 407 suffix) != strlen(to_name) + strlen(suffix)) { 408 unlink(tempfile); 409 errx(EX_OSERR, "%s: backup filename too long", 410 to_name); 411 } 412 if (verbose) 413 (void)printf("install: %s -> %s\n", to_name, backup); 414 if (rename(to_name, backup) < 0) { 415 serrno = errno; 416 unlink(tempfile); 417 errno = serrno; 418 err(EX_OSERR, "rename: %s to %s", to_name, 419 backup); 420 } 421 } 422 if (verbose) 423 (void)printf("install: %s -> %s\n", from_name, to_name); 424 if (rename(tempfile, to_name) < 0) { 425 serrno = errno; 426 unlink(tempfile); 427 errno = serrno; 428 err(EX_OSERR, "rename: %s to %s", 429 tempfile, to_name); 430 } 431 432 /* Re-open to_fd so we aren't hosed by the rename(2). */ 433 (void) close(to_fd); 434 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 435 err(EX_OSERR, "%s", to_name); 436 } 437 438 /* 439 * Preserve the timestamp of the source file if necessary. 440 */ 441 if (dopreserve && !files_match && !devnull) { 442 tvb[0].tv_sec = from_sb.st_atime; 443 tvb[0].tv_usec = 0; 444 tvb[1].tv_sec = from_sb.st_mtime; 445 tvb[1].tv_usec = 0; 446 (void)utimes(to_name, tvb); 447 } 448 449 if (fstat(to_fd, &to_sb) == -1) { 450 serrno = errno; 451 (void)unlink(to_name); 452 errno = serrno; 453 err(EX_OSERR, "%s", to_name); 454 } 455 456 /* 457 * Set owner, group, mode for target; do the chown first, 458 * chown may lose the setuid bits. 459 */ 460 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 461 (uid != (uid_t)-1 && uid != to_sb.st_uid) || 462 (mode != (to_sb.st_mode & ALLPERMS))) { 463 /* Try to turn off the immutable bits. */ 464 if (to_sb.st_flags & NOCHANGEBITS) 465 (void)fchflags(to_fd, to_sb.st_flags & ~NOCHANGEBITS); 466 } 467 468 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 469 (uid != (uid_t)-1 && uid != to_sb.st_uid)) 470 if (fchown(to_fd, uid, gid) == -1) { 471 serrno = errno; 472 (void)unlink(to_name); 473 errno = serrno; 474 err(EX_OSERR,"%s: chown/chgrp", to_name); 475 } 476 477 if (mode != (to_sb.st_mode & ALLPERMS)) 478 if (fchmod(to_fd, mode)) { 479 serrno = errno; 480 (void)unlink(to_name); 481 errno = serrno; 482 err(EX_OSERR, "%s: chmod", to_name); 483 } 484 485 /* 486 * If provided a set of flags, set them, otherwise, preserve the 487 * flags, except for the dump flag. 488 * NFS does not support flags. Ignore EOPNOTSUPP flags if we're just 489 * trying to turn off UF_NODUMP. If we're trying to set real flags, 490 * then warn if the the fs doesn't support it, otherwise fail. 491 */ 492 if (!devnull && (flags & SETFLAGS || 493 (from_sb.st_flags & ~UF_NODUMP) != to_sb.st_flags) && 494 fchflags(to_fd, 495 flags & SETFLAGS ? fset : from_sb.st_flags & ~UF_NODUMP)) { 496 if (flags & SETFLAGS) { 497 if (errno == EOPNOTSUPP) 498 warn("%s: chflags", to_name); 499 else { 500 serrno = errno; 501 (void)unlink(to_name); 502 errno = serrno; 503 err(EX_OSERR, "%s: chflags", to_name); 504 } 505 } 506 } 507 508 (void)close(to_fd); 509 if (!devnull) 510 (void)close(from_fd); 511 } 512 513 /* 514 * compare -- 515 * compare two files; non-zero means files differ 516 */ 517 int 518 compare(int from_fd, const char *from_name __unused, size_t from_len, 519 int to_fd, const char *to_name __unused, size_t to_len) 520 { 521 char *p, *q; 522 int rv; 523 int done_compare; 524 525 rv = 0; 526 if (from_len != to_len) 527 return 1; 528 529 if (from_len <= MAX_CMP_SIZE) { 530 done_compare = 0; 531 if (trymmap(from_fd) && trymmap(to_fd)) { 532 p = mmap(NULL, from_len, PROT_READ, MAP_SHARED, from_fd, (off_t)0); 533 if (p == (char *)MAP_FAILED) 534 goto out; 535 q = mmap(NULL, from_len, PROT_READ, MAP_SHARED, to_fd, (off_t)0); 536 if (q == (char *)MAP_FAILED) { 537 munmap(p, from_len); 538 goto out; 539 } 540 541 rv = memcmp(p, q, from_len); 542 munmap(p, from_len); 543 munmap(q, from_len); 544 done_compare = 1; 545 } 546 out: 547 if (!done_compare) { 548 char buf1[MAXBSIZE]; 549 char buf2[MAXBSIZE]; 550 int n1, n2; 551 552 rv = 0; 553 lseek(from_fd, 0, SEEK_SET); 554 lseek(to_fd, 0, SEEK_SET); 555 while (rv == 0) { 556 n1 = read(from_fd, buf1, sizeof(buf1)); 557 if (n1 == 0) 558 break; /* EOF */ 559 else if (n1 > 0) { 560 n2 = read(to_fd, buf2, n1); 561 if (n2 == n1) 562 rv = memcmp(buf1, buf2, n1); 563 else 564 rv = 1; /* out of sync */ 565 } else 566 rv = 1; /* read failure */ 567 } 568 lseek(from_fd, 0, SEEK_SET); 569 lseek(to_fd, 0, SEEK_SET); 570 } 571 } else 572 rv = 1; /* don't bother in this case */ 573 574 return rv; 575 } 576 577 /* 578 * create_tempfile -- 579 * create a temporary file based on path and open it 580 */ 581 int 582 create_tempfile(const char *path, char *temp, size_t tsize) 583 { 584 char *p; 585 586 (void)strncpy(temp, path, tsize); 587 temp[tsize - 1] = '\0'; 588 if ((p = strrchr(temp, '/')) != NULL) 589 p++; 590 else 591 p = temp; 592 (void)strncpy(p, "INS@XXXX", &temp[tsize - 1] - p); 593 temp[tsize - 1] = '\0'; 594 return (mkstemp(temp)); 595 } 596 597 /* 598 * create_newfile -- 599 * create a new file, overwriting an existing one if necessary 600 */ 601 int 602 create_newfile(const char *path, int target, struct stat *sbp) 603 { 604 char backup[MAXPATHLEN]; 605 int saved_errno = 0; 606 int newfd; 607 608 if (target) { 609 /* 610 * Unlink now... avoid ETXTBSY errors later. Try to turn 611 * off the append/immutable bits -- if we fail, go ahead, 612 * it might work. 613 */ 614 if (sbp->st_flags & NOCHANGEBITS) 615 (void)chflags(path, sbp->st_flags & ~NOCHANGEBITS); 616 617 if (dobackup) { 618 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", 619 path, suffix) != strlen(path) + strlen(suffix)) 620 errx(EX_OSERR, "%s: backup filename too long", 621 path); 622 (void)snprintf(backup, MAXPATHLEN, "%s%s", 623 path, suffix); 624 if (verbose) 625 (void)printf("install: %s -> %s\n", 626 path, backup); 627 if (rename(path, backup) < 0) 628 err(EX_OSERR, "rename: %s to %s", path, backup); 629 } else 630 if (unlink(path) < 0) 631 saved_errno = errno; 632 } 633 634 newfd = open(path, O_CREAT | O_RDWR | O_TRUNC, S_IRUSR | S_IWUSR); 635 if (newfd < 0 && saved_errno != 0) 636 errno = saved_errno; 637 return newfd; 638 } 639 640 /* 641 * copy -- 642 * copy from one file to another 643 */ 644 void 645 copy(int from_fd, const char *from_name, int to_fd, const char *to_name, 646 off_t size) 647 { 648 int nr, nw; 649 int serrno; 650 char *p, buf[MAXBSIZE]; 651 int done_copy; 652 653 /* Rewind file descriptors. */ 654 if (lseek(from_fd, (off_t)0, SEEK_SET) == (off_t)-1) 655 err(EX_OSERR, "lseek: %s", from_name); 656 if (lseek(to_fd, (off_t)0, SEEK_SET) == (off_t)-1) 657 err(EX_OSERR, "lseek: %s", to_name); 658 659 /* 660 * Mmap and write if less than 8M (the limit is so we don't totally 661 * trash memory on big files. This is really a minor hack, but it 662 * wins some CPU back. 663 */ 664 done_copy = 0; 665 if (size <= 8 * 1048576 && trymmap(from_fd) && 666 (p = mmap(NULL, (size_t)size, PROT_READ, MAP_SHARED, 667 from_fd, (off_t)0)) != (char *)MAP_FAILED) { 668 if ((nw = write(to_fd, p, size)) != size) { 669 serrno = errno; 670 (void)unlink(to_name); 671 errno = nw > 0 ? EIO : serrno; 672 err(EX_OSERR, "%s", to_name); 673 } 674 done_copy = 1; 675 } 676 if (!done_copy) { 677 while ((nr = read(from_fd, buf, sizeof(buf))) > 0) 678 if ((nw = write(to_fd, buf, nr)) != nr) { 679 serrno = errno; 680 (void)unlink(to_name); 681 errno = nw > 0 ? EIO : serrno; 682 err(EX_OSERR, "%s", to_name); 683 } 684 if (nr != 0) { 685 serrno = errno; 686 (void)unlink(to_name); 687 errno = serrno; 688 err(EX_OSERR, "%s", from_name); 689 } 690 } 691 } 692 693 /* 694 * strip -- 695 * use strip(1) to strip the target file 696 */ 697 void 698 strip(const char *to_name) 699 { 700 const char *stripbin; 701 int serrno, status; 702 703 switch (fork()) { 704 case -1: 705 serrno = errno; 706 (void)unlink(to_name); 707 errno = serrno; 708 err(EX_TEMPFAIL, "fork"); 709 case 0: 710 stripbin = getenv("STRIPBIN"); 711 if (stripbin == NULL) 712 stripbin = "strip"; 713 execlp(stripbin, stripbin, to_name, (char *)NULL); 714 err(EX_OSERR, "exec(%s)", stripbin); 715 default: 716 if (wait(&status) == -1 || status) { 717 serrno = errno; 718 (void)unlink(to_name); 719 errc(EX_SOFTWARE, serrno, "wait"); 720 /* NOTREACHED */ 721 } 722 } 723 } 724 725 /* 726 * install_dir -- 727 * build directory heirarchy 728 */ 729 void 730 install_dir(char *path) 731 { 732 char *p; 733 struct stat sb; 734 int ch; 735 736 for (p = path;; ++p) 737 if (!*p || (p != path && *p == '/')) { 738 ch = *p; 739 *p = '\0'; 740 if (stat(path, &sb)) { 741 if (errno != ENOENT || mkdir(path, 0755) < 0) { 742 err(EX_OSERR, "mkdir %s", path); 743 /* NOTREACHED */ 744 } else if (verbose) 745 (void)printf("install: mkdir %s\n", 746 path); 747 } else if (!S_ISDIR(sb.st_mode)) 748 errx(EX_OSERR, "%s exists but is not a directory", path); 749 if (!(*p = ch)) 750 break; 751 } 752 753 if ((gid != (gid_t)-1 || uid != (uid_t)-1) && chown(path, uid, gid)) 754 warn("chown %u:%u %s", uid, gid, path); 755 if (chmod(path, mode)) 756 warn("chmod %o %s", mode, path); 757 } 758 759 /* 760 * usage -- 761 * print a usage message and die 762 */ 763 void 764 usage() 765 { 766 (void)fprintf(stderr, 767 "usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 768 " [-o owner] file1 file2\n" 769 " install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 770 " [-o owner] file1 ... fileN directory\n" 771 " install -d [-v] [-g group] [-m mode] [-o owner] directory ...\n"); 772 exit(EX_USAGE); 773 /* NOTREACHED */ 774 } 775 776 /* 777 * trymmap -- 778 * return true (1) if mmap should be tried, false (0) if not. 779 */ 780 int 781 trymmap(int fd) 782 { 783 /* 784 * The ifdef is for bootstrapping - f_fstypename doesn't exist in 785 * pre-Lite2-merge systems. 786 */ 787 #ifdef MFSNAMELEN 788 struct statfs stfs; 789 790 if (nommap || fstatfs(fd, &stfs) != 0) 791 return (0); 792 if (strcmp(stfs.f_fstypename, "ufs") == 0 || 793 strcmp(stfs.f_fstypename, "cd9660") == 0) 794 return (1); 795 #endif 796 return (0); 797 } 798