xinstall.c revision 156363
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 35static 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 42static 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: head/usr.bin/xinstall/xinstall.c 156363 2006-03-06 21:52:59Z obrien $"); 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 81struct passwd *pp; 82struct group *gp; 83gid_t gid; 84uid_t uid; 85int dobackup, docompare, dodir, dopreserve, dostrip, nommap, safecopy, verbose; 86mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; 87const char *suffix = BACKUP_SUFFIX; 88 89void copy(int, const char *, int, const char *, off_t); 90int compare(int, const char *, size_t, int, const char *, size_t); 91int create_newfile(const char *, int, struct stat *); 92int create_tempfile(const char *, char *, size_t); 93void install(const char *, const char *, u_long, u_int); 94void install_dir(char *); 95u_long numeric_id(const char *, const char *); 96void strip(const char *); 97int trymmap(int); 98void usage(void); 99 100int 101main(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 if (getenv("DONTSTRIP") != NULL) { 178 warnx("DONTSTRIP set - will not strip installed binaries"); 179 dostrip = 0; 180 } 181 182 /* must have at least two arguments, except when creating directories */ 183 if (argc == 0 || (argc == 1 && !dodir)) 184 usage(); 185 186 /* need to make a temp copy so we can compare stripped version */ 187 if (docompare && dostrip) 188 safecopy = 1; 189 190 /* get group and owner id's */ 191 if (group != NULL) { 192 if ((gp = getgrnam(group)) != NULL) 193 gid = gp->gr_gid; 194 else 195 gid = (gid_t)numeric_id(group, "group"); 196 } else 197 gid = (gid_t)-1; 198 199 if (owner != NULL) { 200 if ((pp = getpwnam(owner)) != NULL) 201 uid = pp->pw_uid; 202 else 203 uid = (uid_t)numeric_id(owner, "user"); 204 } else 205 uid = (uid_t)-1; 206 207 if (dodir) { 208 for (; *argv != NULL; ++argv) 209 install_dir(*argv); 210 exit(EX_OK); 211 /* NOTREACHED */ 212 } 213 214 no_target = stat(to_name = argv[argc - 1], &to_sb); 215 if (!no_target && S_ISDIR(to_sb.st_mode)) { 216 for (; *argv != to_name; ++argv) 217 install(*argv, to_name, fset, iflags | DIRECTORY); 218 exit(EX_OK); 219 /* NOTREACHED */ 220 } 221 222 /* can't do file1 file2 directory/file */ 223 if (argc != 2) { 224 warnx("wrong number or types of arguments"); 225 usage(); 226 } 227 228 if (!no_target) { 229 if (stat(*argv, &from_sb)) 230 err(EX_OSERR, "%s", *argv); 231 if (!S_ISREG(to_sb.st_mode)) { 232 errno = EFTYPE; 233 err(EX_OSERR, "%s", to_name); 234 } 235 if (to_sb.st_dev == from_sb.st_dev && 236 to_sb.st_ino == from_sb.st_ino) 237 errx(EX_USAGE, 238 "%s and %s are the same file", *argv, to_name); 239 } 240 install(*argv, to_name, fset, iflags); 241 exit(EX_OK); 242 /* NOTREACHED */ 243} 244 245u_long 246numeric_id(const char *name, const char *type) 247{ 248 u_long val; 249 char *ep; 250 251 /* 252 * XXX 253 * We know that uid_t's and gid_t's are unsigned longs. 254 */ 255 errno = 0; 256 val = strtoul(name, &ep, 10); 257 if (errno) 258 err(EX_NOUSER, "%s", name); 259 if (*ep != '\0') 260 errx(EX_NOUSER, "unknown %s %s", type, name); 261 return (val); 262} 263 264/* 265 * install -- 266 * build a path name and install the file 267 */ 268void 269install(const char *from_name, const char *to_name, u_long fset, u_int flags) 270{ 271 struct stat from_sb, temp_sb, to_sb; 272 struct timeval tvb[2]; 273 int devnull, files_match, from_fd, serrno, target; 274 int tempcopy, temp_fd, to_fd; 275 char backup[MAXPATHLEN], *p, pathbuf[MAXPATHLEN], tempfile[MAXPATHLEN]; 276 277 files_match = 0; 278 from_fd = -1; 279 to_fd = -1; 280 281 /* If try to install NULL file to a directory, fails. */ 282 if (flags & DIRECTORY || strcmp(from_name, _PATH_DEVNULL)) { 283 if (stat(from_name, &from_sb)) 284 err(EX_OSERR, "%s", from_name); 285 if (!S_ISREG(from_sb.st_mode)) { 286 errno = EFTYPE; 287 err(EX_OSERR, "%s", from_name); 288 } 289 /* Build the target path. */ 290 if (flags & DIRECTORY) { 291 (void)snprintf(pathbuf, sizeof(pathbuf), "%s/%s", 292 to_name, 293 (p = strrchr(from_name, '/')) ? ++p : from_name); 294 to_name = pathbuf; 295 } 296 devnull = 0; 297 } else { 298 devnull = 1; 299 } 300 301 target = stat(to_name, &to_sb) == 0; 302 303 /* Only install to regular files. */ 304 if (target && !S_ISREG(to_sb.st_mode)) { 305 errno = EFTYPE; 306 warn("%s", to_name); 307 return; 308 } 309 310 /* Only copy safe if the target exists. */ 311 tempcopy = safecopy && target; 312 313 if (!devnull && (from_fd = open(from_name, O_RDONLY, 0)) < 0) 314 err(EX_OSERR, "%s", from_name); 315 316 /* If we don't strip, we can compare first. */ 317 if (docompare && !dostrip && target) { 318 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 319 err(EX_OSERR, "%s", to_name); 320 if (devnull) 321 files_match = to_sb.st_size == 0; 322 else 323 files_match = !(compare(from_fd, from_name, 324 (size_t)from_sb.st_size, to_fd, 325 to_name, (size_t)to_sb.st_size)); 326 327 /* Close "to" file unless we match. */ 328 if (!files_match) 329 (void)close(to_fd); 330 } 331 332 if (!files_match) { 333 if (tempcopy) { 334 to_fd = create_tempfile(to_name, tempfile, 335 sizeof(tempfile)); 336 if (to_fd < 0) 337 err(EX_OSERR, "%s", tempfile); 338 } else { 339 if ((to_fd = create_newfile(to_name, target, 340 &to_sb)) < 0) 341 err(EX_OSERR, "%s", to_name); 342 if (verbose) 343 (void)printf("install: %s -> %s\n", 344 from_name, to_name); 345 } 346 if (!devnull) 347 copy(from_fd, from_name, to_fd, 348 tempcopy ? tempfile : to_name, from_sb.st_size); 349 } 350 351 if (dostrip) { 352 strip(tempcopy ? tempfile : to_name); 353 354 /* 355 * Re-open our fd on the target, in case we used a strip 356 * that does not work in-place -- like GNU binutils strip. 357 */ 358 close(to_fd); 359 to_fd = open(tempcopy ? tempfile : to_name, O_RDONLY, 0); 360 if (to_fd < 0) 361 err(EX_OSERR, "stripping %s", to_name); 362 } 363 364 /* 365 * Compare the stripped temp file with the target. 366 */ 367 if (docompare && dostrip && target) { 368 temp_fd = to_fd; 369 370 /* Re-open to_fd using the real target name. */ 371 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 372 err(EX_OSERR, "%s", to_name); 373 374 if (fstat(temp_fd, &temp_sb)) { 375 serrno = errno; 376 (void)unlink(tempfile); 377 errno = serrno; 378 err(EX_OSERR, "%s", tempfile); 379 } 380 381 if (compare(temp_fd, tempfile, (size_t)temp_sb.st_size, to_fd, 382 to_name, (size_t)to_sb.st_size) == 0) { 383 /* 384 * If target has more than one link we need to 385 * replace it in order to snap the extra links. 386 * Need to preserve target file times, though. 387 */ 388 if (to_sb.st_nlink != 1) { 389 tvb[0].tv_sec = to_sb.st_atime; 390 tvb[0].tv_usec = 0; 391 tvb[1].tv_sec = to_sb.st_mtime; 392 tvb[1].tv_usec = 0; 393 (void)utimes(tempfile, tvb); 394 } else { 395 files_match = 1; 396 (void)unlink(tempfile); 397 } 398 (void) close(temp_fd); 399 } 400 } 401 402 /* 403 * Move the new file into place if doing a safe copy 404 * and the files are different (or just not compared). 405 */ 406 if (tempcopy && !files_match) { 407 /* Try to turn off the immutable bits. */ 408 if (to_sb.st_flags & NOCHANGEBITS) 409 (void)chflags(to_name, to_sb.st_flags & ~NOCHANGEBITS); 410 if (dobackup) { 411 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", to_name, 412 suffix) != strlen(to_name) + strlen(suffix)) { 413 unlink(tempfile); 414 errx(EX_OSERR, "%s: backup filename too long", 415 to_name); 416 } 417 if (verbose) 418 (void)printf("install: %s -> %s\n", to_name, backup); 419 if (rename(to_name, backup) < 0) { 420 serrno = errno; 421 unlink(tempfile); 422 errno = serrno; 423 err(EX_OSERR, "rename: %s to %s", to_name, 424 backup); 425 } 426 } 427 if (verbose) 428 (void)printf("install: %s -> %s\n", from_name, to_name); 429 if (rename(tempfile, to_name) < 0) { 430 serrno = errno; 431 unlink(tempfile); 432 errno = serrno; 433 err(EX_OSERR, "rename: %s to %s", 434 tempfile, to_name); 435 } 436 437 /* Re-open to_fd so we aren't hosed by the rename(2). */ 438 (void) close(to_fd); 439 if ((to_fd = open(to_name, O_RDONLY, 0)) < 0) 440 err(EX_OSERR, "%s", to_name); 441 } 442 443 /* 444 * Preserve the timestamp of the source file if necessary. 445 */ 446 if (dopreserve && !files_match && !devnull) { 447 tvb[0].tv_sec = from_sb.st_atime; 448 tvb[0].tv_usec = 0; 449 tvb[1].tv_sec = from_sb.st_mtime; 450 tvb[1].tv_usec = 0; 451 (void)utimes(to_name, tvb); 452 } 453 454 if (fstat(to_fd, &to_sb) == -1) { 455 serrno = errno; 456 (void)unlink(to_name); 457 errno = serrno; 458 err(EX_OSERR, "%s", to_name); 459 } 460 461 /* 462 * Set owner, group, mode for target; do the chown first, 463 * chown may lose the setuid bits. 464 */ 465 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 466 (uid != (uid_t)-1 && uid != to_sb.st_uid) || 467 (mode != (to_sb.st_mode & ALLPERMS))) { 468 /* Try to turn off the immutable bits. */ 469 if (to_sb.st_flags & NOCHANGEBITS) 470 (void)fchflags(to_fd, to_sb.st_flags & ~NOCHANGEBITS); 471 } 472 473 if ((gid != (gid_t)-1 && gid != to_sb.st_gid) || 474 (uid != (uid_t)-1 && uid != to_sb.st_uid)) 475 if (fchown(to_fd, uid, gid) == -1) { 476 serrno = errno; 477 (void)unlink(to_name); 478 errno = serrno; 479 err(EX_OSERR,"%s: chown/chgrp", to_name); 480 } 481 482 if (mode != (to_sb.st_mode & ALLPERMS)) 483 if (fchmod(to_fd, mode)) { 484 serrno = errno; 485 (void)unlink(to_name); 486 errno = serrno; 487 err(EX_OSERR, "%s: chmod", to_name); 488 } 489 490 /* 491 * If provided a set of flags, set them, otherwise, preserve the 492 * flags, except for the dump flag. 493 * NFS does not support flags. Ignore EOPNOTSUPP flags if we're just 494 * trying to turn off UF_NODUMP. If we're trying to set real flags, 495 * then warn if the the fs doesn't support it, otherwise fail. 496 */ 497 if (!devnull && (flags & SETFLAGS || 498 (from_sb.st_flags & ~UF_NODUMP) != to_sb.st_flags) && 499 fchflags(to_fd, 500 flags & SETFLAGS ? fset : from_sb.st_flags & ~UF_NODUMP)) { 501 if (flags & SETFLAGS) { 502 if (errno == EOPNOTSUPP) 503 warn("%s: chflags", to_name); 504 else { 505 serrno = errno; 506 (void)unlink(to_name); 507 errno = serrno; 508 err(EX_OSERR, "%s: chflags", to_name); 509 } 510 } 511 } 512 513 (void)close(to_fd); 514 if (!devnull) 515 (void)close(from_fd); 516} 517 518/* 519 * compare -- 520 * compare two files; non-zero means files differ 521 */ 522int 523compare(int from_fd, const char *from_name __unused, size_t from_len, 524 int to_fd, const char *to_name __unused, size_t to_len) 525{ 526 char *p, *q; 527 int rv; 528 int done_compare; 529 530 rv = 0; 531 if (from_len != to_len) 532 return 1; 533 534 if (from_len <= MAX_CMP_SIZE) { 535 done_compare = 0; 536 if (trymmap(from_fd) && trymmap(to_fd)) { 537 p = mmap(NULL, from_len, PROT_READ, MAP_SHARED, from_fd, (off_t)0); 538 if (p == (char *)MAP_FAILED) 539 goto out; 540 q = mmap(NULL, from_len, PROT_READ, MAP_SHARED, to_fd, (off_t)0); 541 if (q == (char *)MAP_FAILED) { 542 munmap(p, from_len); 543 goto out; 544 } 545 546 rv = memcmp(p, q, from_len); 547 munmap(p, from_len); 548 munmap(q, from_len); 549 done_compare = 1; 550 } 551 out: 552 if (!done_compare) { 553 char buf1[MAXBSIZE]; 554 char buf2[MAXBSIZE]; 555 int n1, n2; 556 557 rv = 0; 558 lseek(from_fd, 0, SEEK_SET); 559 lseek(to_fd, 0, SEEK_SET); 560 while (rv == 0) { 561 n1 = read(from_fd, buf1, sizeof(buf1)); 562 if (n1 == 0) 563 break; /* EOF */ 564 else if (n1 > 0) { 565 n2 = read(to_fd, buf2, n1); 566 if (n2 == n1) 567 rv = memcmp(buf1, buf2, n1); 568 else 569 rv = 1; /* out of sync */ 570 } else 571 rv = 1; /* read failure */ 572 } 573 lseek(from_fd, 0, SEEK_SET); 574 lseek(to_fd, 0, SEEK_SET); 575 } 576 } else 577 rv = 1; /* don't bother in this case */ 578 579 return rv; 580} 581 582/* 583 * create_tempfile -- 584 * create a temporary file based on path and open it 585 */ 586int 587create_tempfile(const char *path, char *temp, size_t tsize) 588{ 589 char *p; 590 591 (void)strncpy(temp, path, tsize); 592 temp[tsize - 1] = '\0'; 593 if ((p = strrchr(temp, '/')) != NULL) 594 p++; 595 else 596 p = temp; 597 (void)strncpy(p, "INS@XXXX", &temp[tsize - 1] - p); 598 temp[tsize - 1] = '\0'; 599 return (mkstemp(temp)); 600} 601 602/* 603 * create_newfile -- 604 * create a new file, overwriting an existing one if necessary 605 */ 606int 607create_newfile(const char *path, int target, struct stat *sbp) 608{ 609 char backup[MAXPATHLEN]; 610 int saved_errno = 0; 611 int newfd; 612 613 if (target) { 614 /* 615 * Unlink now... avoid ETXTBSY errors later. Try to turn 616 * off the append/immutable bits -- if we fail, go ahead, 617 * it might work. 618 */ 619 if (sbp->st_flags & NOCHANGEBITS) 620 (void)chflags(path, sbp->st_flags & ~NOCHANGEBITS); 621 622 if (dobackup) { 623 if ((size_t)snprintf(backup, MAXPATHLEN, "%s%s", 624 path, suffix) != strlen(path) + strlen(suffix)) 625 errx(EX_OSERR, "%s: backup filename too long", 626 path); 627 (void)snprintf(backup, MAXPATHLEN, "%s%s", 628 path, suffix); 629 if (verbose) 630 (void)printf("install: %s -> %s\n", 631 path, backup); 632 if (rename(path, backup) < 0) 633 err(EX_OSERR, "rename: %s to %s", path, backup); 634 } else 635 if (unlink(path) < 0) 636 saved_errno = errno; 637 } 638 639 newfd = open(path, O_CREAT | O_RDWR | O_TRUNC, S_IRUSR | S_IWUSR); 640 if (newfd < 0 && saved_errno != 0) 641 errno = saved_errno; 642 return newfd; 643} 644 645/* 646 * copy -- 647 * copy from one file to another 648 */ 649void 650copy(int from_fd, const char *from_name, int to_fd, const char *to_name, 651 off_t size) 652{ 653 int nr, nw; 654 int serrno; 655 char *p, buf[MAXBSIZE]; 656 int done_copy; 657 658 /* Rewind file descriptors. */ 659 if (lseek(from_fd, (off_t)0, SEEK_SET) == (off_t)-1) 660 err(EX_OSERR, "lseek: %s", from_name); 661 if (lseek(to_fd, (off_t)0, SEEK_SET) == (off_t)-1) 662 err(EX_OSERR, "lseek: %s", to_name); 663 664 /* 665 * Mmap and write if less than 8M (the limit is so we don't totally 666 * trash memory on big files. This is really a minor hack, but it 667 * wins some CPU back. 668 */ 669 done_copy = 0; 670 if (size <= 8 * 1048576 && trymmap(from_fd) && 671 (p = mmap(NULL, (size_t)size, PROT_READ, MAP_SHARED, 672 from_fd, (off_t)0)) != (char *)MAP_FAILED) { 673 if ((nw = write(to_fd, p, size)) != size) { 674 serrno = errno; 675 (void)unlink(to_name); 676 errno = nw > 0 ? EIO : serrno; 677 err(EX_OSERR, "%s", to_name); 678 } 679 done_copy = 1; 680 } 681 if (!done_copy) { 682 while ((nr = read(from_fd, buf, sizeof(buf))) > 0) 683 if ((nw = write(to_fd, buf, nr)) != nr) { 684 serrno = errno; 685 (void)unlink(to_name); 686 errno = nw > 0 ? EIO : serrno; 687 err(EX_OSERR, "%s", to_name); 688 } 689 if (nr != 0) { 690 serrno = errno; 691 (void)unlink(to_name); 692 errno = serrno; 693 err(EX_OSERR, "%s", from_name); 694 } 695 } 696} 697 698/* 699 * strip -- 700 * use strip(1) to strip the target file 701 */ 702void 703strip(const char *to_name) 704{ 705 const char *stripbin; 706 int serrno, status; 707 708 switch (fork()) { 709 case -1: 710 serrno = errno; 711 (void)unlink(to_name); 712 errno = serrno; 713 err(EX_TEMPFAIL, "fork"); 714 case 0: 715 stripbin = getenv("STRIPBIN"); 716 if (stripbin == NULL) 717 stripbin = "strip"; 718 execlp(stripbin, stripbin, to_name, (char *)NULL); 719 err(EX_OSERR, "exec(%s)", stripbin); 720 default: 721 if (wait(&status) == -1 || status) { 722 serrno = errno; 723 (void)unlink(to_name); 724 errc(EX_SOFTWARE, serrno, "wait"); 725 /* NOTREACHED */ 726 } 727 } 728} 729 730/* 731 * install_dir -- 732 * build directory heirarchy 733 */ 734void 735install_dir(char *path) 736{ 737 char *p; 738 struct stat sb; 739 int ch; 740 741 for (p = path;; ++p) 742 if (!*p || (p != path && *p == '/')) { 743 ch = *p; 744 *p = '\0'; 745 if (stat(path, &sb)) { 746 if (errno != ENOENT || mkdir(path, 0755) < 0) { 747 err(EX_OSERR, "mkdir %s", path); 748 /* NOTREACHED */ 749 } else if (verbose) 750 (void)printf("install: mkdir %s\n", 751 path); 752 } else if (!S_ISDIR(sb.st_mode)) 753 errx(EX_OSERR, "%s exists but is not a directory", path); 754 if (!(*p = ch)) 755 break; 756 } 757 758 if ((gid != (gid_t)-1 || uid != (uid_t)-1) && chown(path, uid, gid)) 759 warn("chown %u:%u %s", uid, gid, path); 760 if (chmod(path, mode)) 761 warn("chmod %o %s", mode, path); 762} 763 764/* 765 * usage -- 766 * print a usage message and die 767 */ 768void 769usage() 770{ 771 (void)fprintf(stderr, 772"usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 773" [-o owner] file1 file2\n" 774" install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]\n" 775" [-o owner] file1 ... fileN directory\n" 776" install -d [-v] [-g group] [-m mode] [-o owner] directory ...\n"); 777 exit(EX_USAGE); 778 /* NOTREACHED */ 779} 780 781/* 782 * trymmap -- 783 * return true (1) if mmap should be tried, false (0) if not. 784 */ 785int 786trymmap(int fd) 787{ 788/* 789 * The ifdef is for bootstrapping - f_fstypename doesn't exist in 790 * pre-Lite2-merge systems. 791 */ 792#ifdef MFSNAMELEN 793 struct statfs stfs; 794 795 if (nommap || fstatfs(fd, &stfs) != 0) 796 return (0); 797 if (strcmp(stfs.f_fstypename, "ufs") == 0 || 798 strcmp(stfs.f_fstypename, "cd9660") == 0) 799 return (1); 800#endif 801 return (0); 802} 803