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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static const char copyright[] = 32 "@(#) Copyright (c) 1987, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34 #endif /* not lint */ 35 36 #if 0 37 #ifndef lint 38 static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93"; 39 #endif /* not lint */ 40 #endif 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/mman.h> 47 #include <sys/mount.h> 48 #include <sys/stat.h> 49 #include <sys/time.h> 50 #include <sys/wait.h> 51 52 #include <err.h> 53 #include <errno.h> 54 #include <fcntl.h> 55 #include <grp.h> 56 #include <paths.h> 57 #include <pwd.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <sysexits.h> 62 #include <unistd.h> 63 64 /* Bootstrap aid - this doesn't exist in most older releases */ 65 #ifndef MAP_FAILED 66 #define MAP_FAILED ((void *)-1) /* from <sys/mman.h> */ 67 #endif 68 69 #define MAX_CMP_SIZE (16 * 1024 * 1024) 70 71 #define DIRECTORY 0x01 /* Tell install it's a directory. */ 72 #define SETFLAGS 0x02 /* Tell install to set flags. */ 73 #define NOCHANGEBITS (UF_IMMUTABLE | UF_APPEND | SF_IMMUTABLE | SF_APPEND) 74 #define BACKUP_SUFFIX ".old" 75 76 static struct passwd *pp; 77 static struct group *gp; 78 static gid_t gid; 79 static uid_t uid; 80 static int dobackup, docompare, dodir, dopreserve, dostrip, nommap, safecopy, 81 verbose; 82 static mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; 83 static const char *suffix = BACKUP_SUFFIX; 84 85 static int compare(int, const char *, size_t, int, const char *, size_t); 86 static void copy(int, const char *, int, const char *, off_t); 87 static int create_newfile(const char *, int, struct stat *); 88 static int create_tempfile(const char *, char *, size_t); 89 static void install(const char *, const char *, u_long, u_int); 90 static void install_dir(char *); 91 static u_long numeric_id(const char *, const char *); 92 static void strip(const char *); 93 static int trymmap(int); 94 static void usage(void); 95 96 int 97 main(int argc, char *argv[]) 98 { 99 struct stat from_sb, to_sb; 100 mode_t *set; 101 u_long fset; 102 int ch, no_target; 103 u_int iflags; 104 char *flags; 105 const char *group, *owner, *to_name; 106 107 iflags = 0; 108 group = owner = NULL; 109 while ((ch = getopt(argc, argv, "B:bCcdf:g:Mm:o:pSsv")) != -1) 110 switch((char)ch) { 111 case 'B': 112 suffix = optarg; 113 /* FALLTHROUGH */ 114 case 'b': 115 dobackup = 1; 116 break; 117 case 'C': 118 docompare = 1; 119 break; 120 case 'c': 121 /* For backwards compatibility. */ 122 break; 123 case 'd': 124 dodir = 1; 125 break; 126 case 'f': 127 flags = optarg; 128 if (strtofflags(&flags, &fset, NULL)) 129 errx(EX_USAGE, "%s: invalid flag", flags); 130 iflags |= SETFLAGS; 131 break; 132 case 'g': 133 group = optarg; 134 break; 135 case 'M': 136 nommap = 1; 137 break; 138 case 'm': 139 if (!(set = setmode(optarg))) 140 errx(EX_USAGE, "invalid file mode: %s", 141 optarg); 142 mode = getmode(set, 0); 143 free(set); 144 break; 145 case 'o': 146 owner = optarg; 147 break; 148 case 'p': 149 docompare = dopreserve = 1; 150 break; 151 case 'S': 152 safecopy = 1; 153 break; 154 case 's': 155 dostrip = 1; 156 break; 157 case 'v': 158 verbose = 1; 159 break; 160 case '?': 161 default: 162 usage(); 163 } 164 argc -= optind; 165 argv += optind; 166 167 /* some options make no sense when creating directories */ 168 if (dostrip && dodir) { 169 warnx("-d and -s may not be specified together"); 170 usage(); 171 } 172 173 if (getenv("DONTSTRIP") != NULL) { 174 warnx("DONTSTRIP set - will not strip installed binaries"); 175 dostrip = 0; 176 } 177 178 /* must have at least two arguments, except when creating directories */ 179 if (argc == 0 || (argc == 1 && !dodir)) 180 usage(); 181 182 /* need to make a temp copy so we can compare stripped version */ 183 if (docompare && dostrip) 184 safecopy = 1; 185 186 /* get group and owner id's */ 187 if (group != NULL) { 188 if ((gp = getgrnam(group)) != NULL) 189 gid = gp->gr_gid; 190 else 191 gid = (gid_t)numeric_id(group, "group"); 192 } else 193 gid = (gid_t)-1; 194 195 if (owner != NULL) { 196 if ((pp = getpwnam(owner)) != NULL) 197 uid = pp->pw_uid; 198 else 199 uid = (uid_t)numeric_id(owner, "user"); 200 } else 201 uid = (uid_t)-1; 202 203 if (dodir) { 204 for (; *argv != NULL; ++argv) 205 install_dir(*argv); 206 exit(EX_OK); 207 /* NOTREACHED */ 208 } 209 210 no_target = stat(to_name = argv[argc - 1], &to_sb); 211 if (!no_target && S_ISDIR(to_sb.st_mode)) { 212 for (; *argv != to_name; ++argv) 213 install(*argv, to_name, fset, iflags | DIRECTORY); 214 exit(EX_OK); 215 /* NOTREACHED */ 216 } 217 218 /* can't do file1 file2 directory/file */ 219 if (argc != 2) { 220 if (no_target) 221 warnx("target directory `%s' does not exist", 222 argv[argc - 1]); 223 else 224 warnx("target `%s' is not a directory", 225 argv[argc - 1]); 226 usage(); 227 } 228 229 if (!no_target) { 230 if (stat(*argv, &from_sb)) 231 err(EX_OSERR, "%s", *argv); 232 if (!S_ISREG(to_sb.st_mode)) { 233 errno = EFTYPE; 234 err(EX_OSERR, "%s", to_name); 235 } 236 if (to_sb.st_dev == from_sb.st_dev && 237 to_sb.st_ino == from_sb.st_ino) 238 errx(EX_USAGE, 239 "%s and %s are the same file", *argv, to_name); 240 } 241 install(*argv, to_name, fset, iflags); 242 exit(EX_OK); 243 /* NOTREACHED */ 244 } 245 246 static u_long 247 numeric_id(const char *name, const char *type) 248 { 249 u_long val; 250 char *ep; 251 252 /* 253 * XXX 254 * We know that uid_t's and gid_t's are unsigned longs. 255 */ 256 errno = 0; 257 val = strtoul(name, &ep, 10); 258 if (errno) 259 err(EX_NOUSER, "%s", name); 260 if (*ep != '\0') 261 errx(EX_NOUSER, "unknown %s %s", type, name); 262 return (val); 263 } 264 265 /* 266 * install -- 267 * build a path name and install the file 268 */ 269 static void 270 install(const char *from_name, const char *to_name, u_long fset, u_int flags) 271 { 272 struct stat from_sb, temp_sb, to_sb; 273 struct timeval tvb[2]; 274 int devnull, files_match, from_fd, serrno, target; 275 int tempcopy, temp_fd, to_fd; 276 char backup[MAXPATHLEN], *p, pathbuf[MAXPATHLEN], tempfile[MAXPATHLEN]; 277 278 files_match = 0; 279 from_fd = -1; 280 to_fd = -1; 281 282 /* If try to install NULL file to a directory, fails. */ 283 if (flags & DIRECTORY || strcmp(from_name, _PATH_DEVNULL)) { 284 if (stat(from_name, &from_sb)) 285 err(EX_OSERR, "%s", from_name); 286 if (!S_ISREG(from_sb.st_mode)) { 287 errno = EFTYPE; 288 err(EX_OSERR, "%s", from_name); 289 } 290 /* Build the target path. */ 291 if (flags & DIRECTORY) { 292 (void)snprintf(pathbuf, sizeof(pathbuf), "%s/%s", 293 to_name, 294 (p = strrchr(from_name, '/')) ? ++p : from_name); 295 to_name = pathbuf; 296 } 297 devnull = 0; 298 } else { 299 devnull = 1; 300 } 301 302 target = stat(to_name, &to_sb) == 0; 303 304 /* Only install to regular files. */ 305 if (target && !S_ISREG(to_sb.st_mode)) { 306 errno = EFTYPE; 307 warn("%s", to_name); 308 return; 309 } 310 311 /* Only copy safe if the target exists. */ 312 tempcopy = safecopy && target; 313 314 if (!devnull && (from_fd = open(from_name, O_RDONLY, 0)) < 0) 315 err(EX_OSERR, "%s", from_name); 316 317 /* If we don't strip, we can compare first. */ 318 if (docompare && !dostrip && target) { 319 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 320 err(EX_OSERR, "%s", to_name); 321 if (devnull) 322 files_match = to_sb.st_size == 0; 323 else 324 files_match = !(compare(from_fd, from_name, 325 (size_t)from_sb.st_size, to_fd, 326 to_name, (size_t)to_sb.st_size)); 327 328 /* Close "to" file unless we match. */ 329 if (!files_match) 330 (void)close(to_fd); 331 } 332 333 if (!files_match) { 334 if (tempcopy) { 335 to_fd = create_tempfile(to_name, tempfile, 336 sizeof(tempfile)); 337 if (to_fd < 0) 338 err(EX_OSERR, "%s", tempfile); 339 } else { 340 if ((to_fd = create_newfile(to_name, target, 341 &to_sb)) < 0) 342 err(EX_OSERR, "%s", to_name); 343 if (verbose) 344 (void)printf("install: %s -> %s\n", 345 from_name, to_name); 346 } 347 if (!devnull) 348 copy(from_fd, from_name, to_fd, 349 tempcopy ? tempfile : to_name, from_sb.st_size); 350 } 351 352 if (dostrip) { 353 strip(tempcopy ? tempfile : to_name); 354 355 /* 356 * Re-open our fd on the target, in case we used a strip 357 * that does not work in-place -- like GNU binutils strip. 358 */ 359 close(to_fd); 360 to_fd = open(tempcopy ? tempfile : to_name, O_RDONLY, 0); 361 if (to_fd < 0) 362 err(EX_OSERR, "stripping %s", to_name); 363 } 364 365 /* 366 * Compare the stripped temp file with the target. 367 */ 368 if (docompare && dostrip && target) { 369 temp_fd = to_fd; 370 371 /* Re-open to_fd using the real target name. */ 372 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 373 err(EX_OSERR, "%s", to_name); 374 375 if (fstat(temp_fd, &temp_sb)) { 376 serrno = errno; 377 (void)unlink(tempfile); 378 errno = serrno; 379 err(EX_OSERR, "%s", tempfile); 380 } 381 382 if (compare(temp_fd, tempfile, (size_t)temp_sb.st_size, to_fd, 383 to_name, (size_t)to_sb.st_size) == 0) { 384 /* 385 * If target has more than one link we need to 386 * replace it in order to snap the extra links. 387 * Need to preserve target file times, though. 388 */ 389 if (to_sb.st_nlink != 1) { 390 tvb[0].tv_sec = to_sb.st_atime; 391 tvb[0].tv_usec = 0; 392 tvb[1].tv_sec = to_sb.st_mtime; 393 tvb[1].tv_usec = 0; 394 (void)utimes(tempfile, tvb); 395 } else { 396 files_match = 1; 397 (void)unlink(tempfile); 398 } 399 (void) close(temp_fd); 400 } 401 } 402 403 /* 404 * Move the new file into place if doing a safe copy 405 * and the files are different (or just not compared). 406 */ 407 if (tempcopy && !files_match) { 408 /* Try to turn off the immutable bits. */ 409 if (to_sb.st_flags & NOCHANGEBITS) 410 (void)chflags(to_name, to_sb.st_flags & ~NOCHANGEBITS); 411 if (dobackup) { 412 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", to_name, 413 suffix) != strlen(to_name) + strlen(suffix)) { 414 unlink(tempfile); 415 errx(EX_OSERR, "%s: backup filename too long", 416 to_name); 417 } 418 if (verbose) 419 (void)printf("install: %s -> %s\n", to_name, backup); 420 if (rename(to_name, backup) < 0) { 421 serrno = errno; 422 unlink(tempfile); 423 errno = serrno; 424 err(EX_OSERR, "rename: %s to %s", to_name, 425 backup); 426 } 427 } 428 if (verbose) 429 (void)printf("install: %s -> %s\n", from_name, to_name); 430 if (rename(tempfile, to_name) < 0) { 431 serrno = errno; 432 unlink(tempfile); 433 errno = serrno; 434 err(EX_OSERR, "rename: %s to %s", 435 tempfile, to_name); 436 } 437 438 /* Re-open to_fd so we aren't hosed by the rename(2). */ 439 (void) close(to_fd); 440 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 441 err(EX_OSERR, "%s", to_name); 442 } 443 444 /* 445 * Preserve the timestamp of the source file if necessary. 446 */ 447 if (dopreserve && !files_match && !devnull) { 448 tvb[0].tv_sec = from_sb.st_atime; 449 tvb[0].tv_usec = 0; 450 tvb[1].tv_sec = from_sb.st_mtime; 451 tvb[1].tv_usec = 0; 452 (void)utimes(to_name, tvb); 453 } 454 455 if (fstat(to_fd, &to_sb) == -1) { 456 serrno = errno; 457 (void)unlink(to_name); 458 errno = serrno; 459 err(EX_OSERR, "%s", to_name); 460 } 461 462 /* 463 * Set owner, group, mode for target; do the chown first, 464 * chown may lose the setuid bits. 465 */ 466 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 467 (uid != (uid_t)-1 && uid != to_sb.st_uid) || 468 (mode != (to_sb.st_mode & ALLPERMS))) { 469 /* Try to turn off the immutable bits. */ 470 if (to_sb.st_flags & NOCHANGEBITS) 471 (void)fchflags(to_fd, to_sb.st_flags & ~NOCHANGEBITS); 472 } 473 474 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 475 (uid != (uid_t)-1 && uid != to_sb.st_uid)) 476 if (fchown(to_fd, uid, gid) == -1) { 477 serrno = errno; 478 (void)unlink(to_name); 479 errno = serrno; 480 err(EX_OSERR,"%s: chown/chgrp", to_name); 481 } 482 483 if (mode != (to_sb.st_mode & ALLPERMS)) 484 if (fchmod(to_fd, mode)) { 485 serrno = errno; 486 (void)unlink(to_name); 487 errno = serrno; 488 err(EX_OSERR, "%s: chmod", to_name); 489 } 490 491 /* 492 * If provided a set of flags, set them, otherwise, preserve the 493 * flags, except for the dump flag. 494 * NFS does not support flags. Ignore EOPNOTSUPP flags if we're just 495 * trying to turn off UF_NODUMP. If we're trying to set real flags, 496 * then warn if the fs doesn't support it, otherwise fail. 497 */ 498 if (!devnull && (flags & SETFLAGS || 499 (from_sb.st_flags & ~UF_NODUMP) != to_sb.st_flags) && 500 fchflags(to_fd, 501 flags & SETFLAGS ? fset : from_sb.st_flags & ~UF_NODUMP)) { 502 if (flags & SETFLAGS) { 503 if (errno == EOPNOTSUPP) 504 warn("%s: chflags", to_name); 505 else { 506 serrno = errno; 507 (void)unlink(to_name); 508 errno = serrno; 509 err(EX_OSERR, "%s: chflags", to_name); 510 } 511 } 512 } 513 514 (void)close(to_fd); 515 if (!devnull) 516 (void)close(from_fd); 517 } 518 519 /* 520 * compare -- 521 * compare two files; non-zero means files differ 522 */ 523 static int 524 compare(int from_fd, const char *from_name __unused, size_t from_len, 525 int to_fd, const char *to_name __unused, size_t to_len) 526 { 527 char *p, *q; 528 int rv; 529 int done_compare; 530 531 rv = 0; 532 if (from_len != to_len) 533 return 1; 534 535 if (from_len <= MAX_CMP_SIZE) { 536 done_compare = 0; 537 if (trymmap(from_fd) && trymmap(to_fd)) { 538 p = mmap(NULL, from_len, PROT_READ, MAP_SHARED, from_fd, (off_t)0); 539 if (p == (char *)MAP_FAILED) 540 goto out; 541 q = mmap(NULL, from_len, PROT_READ, MAP_SHARED, to_fd, (off_t)0); 542 if (q == (char *)MAP_FAILED) { 543 munmap(p, from_len); 544 goto out; 545 } 546 547 rv = memcmp(p, q, from_len); 548 munmap(p, from_len); 549 munmap(q, from_len); 550 done_compare = 1; 551 } 552 out: 553 if (!done_compare) { 554 char buf1[MAXBSIZE]; 555 char buf2[MAXBSIZE]; 556 int n1, n2; 557 558 rv = 0; 559 lseek(from_fd, 0, SEEK_SET); 560 lseek(to_fd, 0, SEEK_SET); 561 while (rv == 0) { 562 n1 = read(from_fd, buf1, sizeof(buf1)); 563 if (n1 == 0) 564 break; /* EOF */ 565 else if (n1 > 0) { 566 n2 = read(to_fd, buf2, n1); 567 if (n2 == n1) 568 rv = memcmp(buf1, buf2, n1); 569 else 570 rv = 1; /* out of sync */ 571 } else 572 rv = 1; /* read failure */ 573 } 574 lseek(from_fd, 0, SEEK_SET); 575 lseek(to_fd, 0, SEEK_SET); 576 } 577 } else 578 rv = 1; /* don't bother in this case */ 579 580 return rv; 581 } 582 583 /* 584 * create_tempfile -- 585 * create a temporary file based on path and open it 586 */ 587 static int 588 create_tempfile(const char *path, char *temp, size_t tsize) 589 { 590 char *p; 591 592 (void)strncpy(temp, path, tsize); 593 temp[tsize - 1] = '\0'; 594 if ((p = strrchr(temp, '/')) != NULL) 595 p++; 596 else 597 p = temp; 598 (void)strncpy(p, "INS@XXXX", &temp[tsize - 1] - p); 599 temp[tsize - 1] = '\0'; 600 return (mkstemp(temp)); 601 } 602 603 /* 604 * create_newfile -- 605 * create a new file, overwriting an existing one if necessary 606 */ 607 static int 608 create_newfile(const char *path, int target, struct stat *sbp) 609 { 610 char backup[MAXPATHLEN]; 611 int saved_errno = 0; 612 int newfd; 613 614 if (target) { 615 /* 616 * Unlink now... avoid ETXTBSY errors later. Try to turn 617 * off the append/immutable bits -- if we fail, go ahead, 618 * it might work. 619 */ 620 if (sbp->st_flags & NOCHANGEBITS) 621 (void)chflags(path, sbp->st_flags & ~NOCHANGEBITS); 622 623 if (dobackup) { 624 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", 625 path, suffix) != strlen(path) + strlen(suffix)) 626 errx(EX_OSERR, "%s: backup filename too long", 627 path); 628 (void)snprintf(backup, MAXPATHLEN, "%s%s", 629 path, suffix); 630 if (verbose) 631 (void)printf("install: %s -> %s\n", 632 path, backup); 633 if (rename(path, backup) < 0) 634 err(EX_OSERR, "rename: %s to %s", path, backup); 635 } else 636 if (unlink(path) < 0) 637 saved_errno = errno; 638 } 639 640 newfd = open(path, O_CREAT | O_RDWR | O_TRUNC, S_IRUSR | S_IWUSR); 641 if (newfd < 0 && saved_errno != 0) 642 errno = saved_errno; 643 return newfd; 644 } 645 646 /* 647 * copy -- 648 * copy from one file to another 649 */ 650 static void 651 copy(int from_fd, const char *from_name, int to_fd, const char *to_name, 652 off_t size) 653 { 654 int nr, nw; 655 int serrno; 656 char *p, buf[MAXBSIZE]; 657 int done_copy; 658 659 /* Rewind file descriptors. */ 660 if (lseek(from_fd, (off_t)0, SEEK_SET) == (off_t)-1) 661 err(EX_OSERR, "lseek: %s", from_name); 662 if (lseek(to_fd, (off_t)0, SEEK_SET) == (off_t)-1) 663 err(EX_OSERR, "lseek: %s", to_name); 664 665 /* 666 * Mmap and write if less than 8M (the limit is so we don't totally 667 * trash memory on big files. This is really a minor hack, but it 668 * wins some CPU back. 669 */ 670 done_copy = 0; 671 if (size <= 8 * 1048576 && trymmap(from_fd) && 672 (p = mmap(NULL, (size_t)size, PROT_READ, MAP_SHARED, 673 from_fd, (off_t)0)) != (char *)MAP_FAILED) { 674 if ((nw = write(to_fd, p, size)) != size) { 675 serrno = errno; 676 (void)unlink(to_name); 677 errno = nw > 0 ? EIO : serrno; 678 err(EX_OSERR, "%s", to_name); 679 } 680 done_copy = 1; 681 } 682 if (!done_copy) { 683 while ((nr = read(from_fd, buf, sizeof(buf))) > 0) 684 if ((nw = write(to_fd, buf, nr)) != nr) { 685 serrno = errno; 686 (void)unlink(to_name); 687 errno = nw > 0 ? EIO : serrno; 688 err(EX_OSERR, "%s", to_name); 689 } 690 if (nr != 0) { 691 serrno = errno; 692 (void)unlink(to_name); 693 errno = serrno; 694 err(EX_OSERR, "%s", from_name); 695 } 696 } 697 } 698 699 /* 700 * strip -- 701 * use strip(1) to strip the target file 702 */ 703 static void 704 strip(const char *to_name) 705 { 706 const char *stripbin; 707 int serrno, status; 708 709 switch (fork()) { 710 case -1: 711 serrno = errno; 712 (void)unlink(to_name); 713 errno = serrno; 714 err(EX_TEMPFAIL, "fork"); 715 case 0: 716 stripbin = getenv("STRIPBIN"); 717 if (stripbin == NULL) 718 stripbin = "strip"; 719 execlp(stripbin, stripbin, to_name, (char *)NULL); 720 err(EX_OSERR, "exec(%s)", stripbin); 721 default: 722 if (wait(&status) == -1 || status) { 723 serrno = errno; 724 (void)unlink(to_name); 725 errc(EX_SOFTWARE, serrno, "wait"); 726 /* NOTREACHED */ 727 } 728 } 729 } 730 731 /* 732 * install_dir -- 733 * build directory hierarchy 734 */ 735 static void 736 install_dir(char *path) 737 { 738 char *p; 739 struct stat sb; 740 int ch; 741 742 for (p = path;; ++p) 743 if (!*p || (p != path && *p == '/')) { 744 ch = *p; 745 *p = '\0'; 746 if (stat(path, &sb)) { 747 if (errno != ENOENT || mkdir(path, 0755) < 0) { 748 err(EX_OSERR, "mkdir %s", path); 749 /* NOTREACHED */ 750 } else if (verbose) 751 (void)printf("install: mkdir %s\n", 752 path); 753 } else if (!S_ISDIR(sb.st_mode)) 754 errx(EX_OSERR, "%s exists but is not a directory", path); 755 if (!(*p = ch)) 756 break; 757 } 758 759 if ((gid != (gid_t)-1 || uid != (uid_t)-1) && chown(path, uid, gid)) 760 warn("chown %u:%u %s", uid, gid, path); 761 if (chmod(path, mode)) 762 warn("chmod %o %s", mode, path); 763 } 764 765 /* 766 * usage -- 767 * print a usage message and die 768 */ 769 static void 770 usage(void) 771 { 772 (void)fprintf(stderr, 773 "usage: install [-bCcMpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 774 " [-o owner] file1 file2\n" 775 " install [-bCcMpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 776 " [-o owner] file1 ... fileN directory\n" 777 " install -d [-v] [-g group] [-m mode] [-o owner] directory ...\n"); 778 exit(EX_USAGE); 779 /* NOTREACHED */ 780 } 781 782 /* 783 * trymmap -- 784 * return true (1) if mmap should be tried, false (0) if not. 785 */ 786 static int 787 trymmap(int fd) 788 { 789 /* 790 * The ifdef is for bootstrapping - f_fstypename doesn't exist in 791 * pre-Lite2-merge systems. 792 */ 793 #ifdef MFSNAMELEN 794 struct statfs stfs; 795 796 if (nommap || fstatfs(fd, &stfs) != 0) 797 return (0); 798 if (strcmp(stfs.f_fstypename, "ufs") == 0 || 799 strcmp(stfs.f_fstypename, "cd9660") == 0) 800 return (1); 801 #endif 802 return (0); 803 } 804