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; 273 274 /* If try to install NULL file to a directory, fails. */ 275 if (flags & DIRECTORY || strcmp(from_name, _PATH_DEVNULL)) { 276 if (stat(from_name, &from_sb)) 277 err(EX_OSERR, "%s", from_name); 278 if (!S_ISREG(from_sb.st_mode)) { 279 errno = EFTYPE; 280 err(EX_OSERR, "%s", from_name); 281 } 282 /* Build the target path. */ 283 if (flags & DIRECTORY) { 284 (void)snprintf(pathbuf, sizeof(pathbuf), "%s/%s", 285 to_name, 286 (p = strrchr(from_name, '/')) ? ++p : from_name); 287 to_name = pathbuf; 288 } 289 devnull = 0; 290 } else { 291 devnull = 1; 292 } 293 294 target = stat(to_name, &to_sb) == 0; 295 296 /* Only install to regular files. */ 297 if (target && !S_ISREG(to_sb.st_mode)) { 298 errno = EFTYPE; 299 warn("%s", to_name); 300 return; 301 } 302 303 /* Only copy safe if the target exists. */ 304 tempcopy = safecopy && target; 305 306 if (!devnull && (from_fd = open(from_name, O_RDONLY, 0)) < 0) 307 err(EX_OSERR, "%s", from_name); 308 309 /* If we don't strip, we can compare first. */ 310 if (docompare && !dostrip && target) { 311 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 312 err(EX_OSERR, "%s", to_name); 313 if (devnull) 314 files_match = to_sb.st_size == 0; 315 else 316 files_match = !(compare(from_fd, from_name, 317 (size_t)from_sb.st_size, to_fd, 318 to_name, (size_t)to_sb.st_size)); 319 320 /* Close "to" file unless we match. */ 321 if (!files_match) 322 (void)close(to_fd); 323 } 324 325 if (!files_match) { 326 if (tempcopy) { 327 to_fd = create_tempfile(to_name, tempfile, 328 sizeof(tempfile)); 329 if (to_fd < 0) 330 err(EX_OSERR, "%s", tempfile); 331 } else { 332 if ((to_fd = create_newfile(to_name, target, 333 &to_sb)) < 0) 334 err(EX_OSERR, "%s", to_name); 335 if (verbose) 336 (void)printf("install: %s -> %s\n", 337 from_name, to_name); 338 } 339 if (!devnull) 340 copy(from_fd, from_name, to_fd, 341 tempcopy ? tempfile : to_name, from_sb.st_size); 342 } 343 344 if (dostrip) { 345 strip(tempcopy ? tempfile : to_name); 346 347 /* 348 * Re-open our fd on the target, in case we used a strip 349 * that does not work in-place -- like GNU binutils strip. 350 */ 351 close(to_fd); 352 to_fd = open(tempcopy ? tempfile : to_name, O_RDONLY, 0); 353 if (to_fd < 0) 354 err(EX_OSERR, "stripping %s", to_name); 355 } 356 357 /* 358 * Compare the stripped temp file with the target. 359 */ 360 if (docompare && dostrip && target) { 361 temp_fd = to_fd; 362 363 /* Re-open to_fd using the real target name. */ 364 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 365 err(EX_OSERR, "%s", to_name); 366 367 if (fstat(temp_fd, &temp_sb)) { 368 serrno = errno; 369 (void)unlink(tempfile); 370 errno = serrno; 371 err(EX_OSERR, "%s", tempfile); 372 } 373 374 if (compare(temp_fd, tempfile, (size_t)temp_sb.st_size, to_fd, 375 to_name, (size_t)to_sb.st_size) == 0) { 376 /* 377 * If target has more than one link we need to 378 * replace it in order to snap the extra links. 379 * Need to preserve target file times, though. 380 */ 381 if (to_sb.st_nlink != 1) { 382 tvb[0].tv_sec = to_sb.st_atime; 383 tvb[0].tv_usec = 0; 384 tvb[1].tv_sec = to_sb.st_mtime; 385 tvb[1].tv_usec = 0; 386 (void)utimes(tempfile, tvb); 387 } else { 388 files_match = 1; 389 (void)unlink(tempfile); 390 } 391 (void) close(temp_fd); 392 } 393 } 394 395 /* 396 * Move the new file into place if doing a safe copy 397 * and the files are different (or just not compared). 398 */ 399 if (tempcopy && !files_match) { 400 /* Try to turn off the immutable bits. */ 401 if (to_sb.st_flags & NOCHANGEBITS) 402 (void)chflags(to_name, to_sb.st_flags & ~NOCHANGEBITS); 403 if (dobackup) { 404 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", to_name, 405 suffix) != strlen(to_name) + strlen(suffix)) { 406 unlink(tempfile); 407 errx(EX_OSERR, "%s: backup filename too long", 408 to_name); 409 } 410 if (verbose) 411 (void)printf("install: %s -> %s\n", to_name, backup); 412 if (rename(to_name, backup) < 0) { 413 serrno = errno; 414 unlink(tempfile); 415 errno = serrno; 416 err(EX_OSERR, "rename: %s to %s", to_name, 417 backup); 418 } 419 } 420 if (verbose) 421 (void)printf("install: %s -> %s\n", from_name, to_name); 422 if (rename(tempfile, to_name) < 0) { 423 serrno = errno; 424 unlink(tempfile); 425 errno = serrno; 426 err(EX_OSERR, "rename: %s to %s", 427 tempfile, to_name); 428 } 429 430 /* Re-open to_fd so we aren't hosed by the rename(2). */ 431 (void) close(to_fd); 432 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 433 err(EX_OSERR, "%s", to_name); 434 } 435 436 /* 437 * Preserve the timestamp of the source file if necessary. 438 */ 439 if (dopreserve && !files_match && !devnull) { 440 tvb[0].tv_sec = from_sb.st_atime; 441 tvb[0].tv_usec = 0; 442 tvb[1].tv_sec = from_sb.st_mtime; 443 tvb[1].tv_usec = 0; 444 (void)utimes(to_name, tvb); 445 } 446 447 if (fstat(to_fd, &to_sb) == -1) { 448 serrno = errno; 449 (void)unlink(to_name); 450 errno = serrno; 451 err(EX_OSERR, "%s", to_name); 452 } 453 454 /* 455 * Set owner, group, mode for target; do the chown first, 456 * chown may lose the setuid bits. 457 */ 458 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 459 (uid != (uid_t)-1 && uid != to_sb.st_uid) || 460 (mode != (to_sb.st_mode & ALLPERMS))) { 461 /* Try to turn off the immutable bits. */ 462 if (to_sb.st_flags & NOCHANGEBITS) 463 (void)fchflags(to_fd, to_sb.st_flags & ~NOCHANGEBITS); 464 } 465 466 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 467 (uid != (uid_t)-1 && uid != to_sb.st_uid)) 468 if (fchown(to_fd, uid, gid) == -1) { 469 serrno = errno; 470 (void)unlink(to_name); 471 errno = serrno; 472 err(EX_OSERR,"%s: chown/chgrp", to_name); 473 } 474 475 if (mode != (to_sb.st_mode & ALLPERMS)) 476 if (fchmod(to_fd, mode)) { 477 serrno = errno; 478 (void)unlink(to_name); 479 errno = serrno; 480 err(EX_OSERR, "%s: chmod", to_name); 481 } 482 483 /* 484 * If provided a set of flags, set them, otherwise, preserve the 485 * flags, except for the dump flag. 486 * NFS does not support flags. Ignore EOPNOTSUPP flags if we're just 487 * trying to turn off UF_NODUMP. If we're trying to set real flags, 488 * then warn if the the fs doesn't support it, otherwise fail. 489 */ 490 if (!devnull && (flags & SETFLAGS || 491 (from_sb.st_flags & ~UF_NODUMP) != to_sb.st_flags) && 492 fchflags(to_fd, 493 flags & SETFLAGS ? fset : from_sb.st_flags & ~UF_NODUMP)) { 494 if (flags & SETFLAGS) { 495 if (errno == EOPNOTSUPP) 496 warn("%s: chflags", to_name); 497 else { 498 serrno = errno; 499 (void)unlink(to_name); 500 errno = serrno; 501 err(EX_OSERR, "%s: chflags", to_name); 502 } 503 } 504 } 505 506 (void)close(to_fd); 507 if (!devnull) 508 (void)close(from_fd); 509 } 510 511 /* 512 * compare -- 513 * compare two files; non-zero means files differ 514 */ 515 int 516 compare(int from_fd, const char *from_name __unused, size_t from_len, 517 int to_fd, const char *to_name __unused, size_t to_len) 518 { 519 char *p, *q; 520 int rv; 521 int done_compare; 522 523 rv = 0; 524 if (from_len != to_len) 525 return 1; 526 527 if (from_len <= MAX_CMP_SIZE) { 528 done_compare = 0; 529 if (trymmap(from_fd) && trymmap(to_fd)) { 530 p = mmap(NULL, from_len, PROT_READ, MAP_SHARED, from_fd, (off_t)0); 531 if (p == (char *)MAP_FAILED) 532 goto out; 533 q = mmap(NULL, from_len, PROT_READ, MAP_SHARED, to_fd, (off_t)0); 534 if (q == (char *)MAP_FAILED) { 535 munmap(p, from_len); 536 goto out; 537 } 538 539 rv = memcmp(p, q, from_len); 540 munmap(p, from_len); 541 munmap(q, from_len); 542 done_compare = 1; 543 } 544 out: 545 if (!done_compare) { 546 char buf1[MAXBSIZE]; 547 char buf2[MAXBSIZE]; 548 int n1, n2; 549 550 rv = 0; 551 lseek(from_fd, 0, SEEK_SET); 552 lseek(to_fd, 0, SEEK_SET); 553 while (rv == 0) { 554 n1 = read(from_fd, buf1, sizeof(buf1)); 555 if (n1 == 0) 556 break; /* EOF */ 557 else if (n1 > 0) { 558 n2 = read(to_fd, buf2, n1); 559 if (n2 == n1) 560 rv = memcmp(buf1, buf2, n1); 561 else 562 rv = 1; /* out of sync */ 563 } else 564 rv = 1; /* read failure */ 565 } 566 lseek(from_fd, 0, SEEK_SET); 567 lseek(to_fd, 0, SEEK_SET); 568 } 569 } else 570 rv = 1; /* don't bother in this case */ 571 572 return rv; 573 } 574 575 /* 576 * create_tempfile -- 577 * create a temporary file based on path and open it 578 */ 579 int 580 create_tempfile(const char *path, char *temp, size_t tsize) 581 { 582 char *p; 583 584 (void)strncpy(temp, path, tsize); 585 temp[tsize - 1] = '\0'; 586 if ((p = strrchr(temp, '/')) != NULL) 587 p++; 588 else 589 p = temp; 590 (void)strncpy(p, "INS@XXXX", &temp[tsize - 1] - p); 591 temp[tsize - 1] = '\0'; 592 return (mkstemp(temp)); 593 } 594 595 /* 596 * create_newfile -- 597 * create a new file, overwriting an existing one if necessary 598 */ 599 int 600 create_newfile(const char *path, int target, struct stat *sbp) 601 { 602 char backup[MAXPATHLEN]; 603 int saved_errno = 0; 604 int newfd; 605 606 if (target) { 607 /* 608 * Unlink now... avoid ETXTBSY errors later. Try to turn 609 * off the append/immutable bits -- if we fail, go ahead, 610 * it might work. 611 */ 612 if (sbp->st_flags & NOCHANGEBITS) 613 (void)chflags(path, sbp->st_flags & ~NOCHANGEBITS); 614 615 if (dobackup) { 616 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", 617 path, suffix) != strlen(path) + strlen(suffix)) 618 errx(EX_OSERR, "%s: backup filename too long", 619 path); 620 (void)snprintf(backup, MAXPATHLEN, "%s%s", 621 path, suffix); 622 if (verbose) 623 (void)printf("install: %s -> %s\n", 624 path, backup); 625 if (rename(path, backup) < 0) 626 err(EX_OSERR, "rename: %s to %s", path, backup); 627 } else 628 if (unlink(path) < 0) 629 saved_errno = errno; 630 } 631 632 newfd = open(path, O_CREAT | O_RDWR | O_TRUNC, S_IRUSR | S_IWUSR); 633 if (newfd < 0 && saved_errno != 0) 634 errno = saved_errno; 635 return newfd; 636 } 637 638 /* 639 * copy -- 640 * copy from one file to another 641 */ 642 void 643 copy(int from_fd, const char *from_name, int to_fd, const char *to_name, 644 off_t size) 645 { 646 int nr, nw; 647 int serrno; 648 char *p, buf[MAXBSIZE]; 649 int done_copy; 650 651 /* Rewind file descriptors. */ 652 if (lseek(from_fd, (off_t)0, SEEK_SET) == (off_t)-1) 653 err(EX_OSERR, "lseek: %s", from_name); 654 if (lseek(to_fd, (off_t)0, SEEK_SET) == (off_t)-1) 655 err(EX_OSERR, "lseek: %s", to_name); 656 657 /* 658 * Mmap and write if less than 8M (the limit is so we don't totally 659 * trash memory on big files. This is really a minor hack, but it 660 * wins some CPU back. 661 */ 662 done_copy = 0; 663 if (size <= 8 * 1048576 && trymmap(from_fd) && 664 (p = mmap(NULL, (size_t)size, PROT_READ, MAP_SHARED, 665 from_fd, (off_t)0)) != (char *)MAP_FAILED) { 666 if ((nw = write(to_fd, p, size)) != size) { 667 serrno = errno; 668 (void)unlink(to_name); 669 errno = nw > 0 ? EIO : serrno; 670 err(EX_OSERR, "%s", to_name); 671 } 672 done_copy = 1; 673 } 674 if (!done_copy) { 675 while ((nr = read(from_fd, buf, sizeof(buf))) > 0) 676 if ((nw = write(to_fd, buf, nr)) != nr) { 677 serrno = errno; 678 (void)unlink(to_name); 679 errno = nw > 0 ? EIO : serrno; 680 err(EX_OSERR, "%s", to_name); 681 } 682 if (nr != 0) { 683 serrno = errno; 684 (void)unlink(to_name); 685 errno = serrno; 686 err(EX_OSERR, "%s", from_name); 687 } 688 } 689 } 690 691 /* 692 * strip -- 693 * use strip(1) to strip the target file 694 */ 695 void 696 strip(const char *to_name) 697 { 698 const char *stripbin; 699 int serrno, status; 700 701 switch (fork()) { 702 case -1: 703 serrno = errno; 704 (void)unlink(to_name); 705 errno = serrno; 706 err(EX_TEMPFAIL, "fork"); 707 case 0: 708 stripbin = getenv("STRIPBIN"); 709 if (stripbin == NULL) 710 stripbin = "strip"; 711 execlp(stripbin, stripbin, to_name, (char *)NULL); 712 err(EX_OSERR, "exec(%s)", stripbin); 713 default: 714 if (wait(&status) == -1 || status) { 715 serrno = errno; 716 (void)unlink(to_name); 717 errc(EX_SOFTWARE, serrno, "wait"); 718 /* NOTREACHED */ 719 } 720 } 721 } 722 723 /* 724 * install_dir -- 725 * build directory heirarchy 726 */ 727 void 728 install_dir(char *path) 729 { 730 char *p; 731 struct stat sb; 732 int ch; 733 734 for (p = path;; ++p) 735 if (!*p || (p != path && *p == '/')) { 736 ch = *p; 737 *p = '\0'; 738 if (stat(path, &sb)) { 739 if (errno != ENOENT || mkdir(path, 0755) < 0) { 740 err(EX_OSERR, "mkdir %s", path); 741 /* NOTREACHED */ 742 } else if (verbose) 743 (void)printf("install: mkdir %s\n", 744 path); 745 } else if (!S_ISDIR(sb.st_mode)) 746 errx(EX_OSERR, "%s exists but is not a directory", path); 747 if (!(*p = ch)) 748 break; 749 } 750 751 if ((gid != (gid_t)-1 || uid != (uid_t)-1) && chown(path, uid, gid)) 752 warn("chown %u:%u %s", uid, gid, path); 753 if (chmod(path, mode)) 754 warn("chmod %o %s", mode, path); 755 } 756 757 /* 758 * usage -- 759 * print a usage message and die 760 */ 761 void 762 usage() 763 { 764 (void)fprintf(stderr, 765 "usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 766 " [-o owner] file1 file2\n" 767 " install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 768 " [-o owner] file1 ... fileN directory\n" 769 " install -d [-v] [-g group] [-m mode] [-o owner] directory ...\n"); 770 exit(EX_USAGE); 771 /* NOTREACHED */ 772 } 773 774 /* 775 * trymmap -- 776 * return true (1) if mmap should be tried, false (0) if not. 777 */ 778 int 779 trymmap(int fd) 780 { 781 /* 782 * The ifdef is for bootstrapping - f_fstypename doesn't exist in 783 * pre-Lite2-merge systems. 784 */ 785 #ifdef MFSNAMELEN 786 struct statfs stfs; 787 788 if (nommap || fstatfs(fd, &stfs) != 0) 789 return (0); 790 if (strcmp(stfs.f_fstypename, "ufs") == 0 || 791 strcmp(stfs.f_fstypename, "cd9660") == 0) 792 return (1); 793 #endif 794 return (0); 795 } 796