mv.c revision 284916
1227569Sphilip/*- 2227569Sphilip * Copyright (c) 1989, 1993, 1994 3227569Sphilip * The Regents of the University of California. All rights reserved. 4227569Sphilip * 5227569Sphilip * This code is derived from software contributed to Berkeley by 6227569Sphilip * Ken Smith of The State University of New York at Buffalo. 7227569Sphilip * 8227569Sphilip * Redistribution and use in source and binary forms, with or without 9227569Sphilip * modification, are permitted provided that the following conditions 10227569Sphilip * are met: 11227569Sphilip * 1. Redistributions of source code must retain the above copyright 12227569Sphilip * notice, this list of conditions and the following disclaimer. 13227569Sphilip * 2. Redistributions in binary form must reproduce the above copyright 14227569Sphilip * notice, this list of conditions and the following disclaimer in the 15227569Sphilip * documentation and/or other materials provided with the distribution. 16227569Sphilip * 4. Neither the name of the University nor the names of its contributors 17227569Sphilip * may be used to endorse or promote products derived from this software 18227569Sphilip * without specific prior written permission. 19227569Sphilip * 20227569Sphilip * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21227569Sphilip * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22227569Sphilip * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23227569Sphilip * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24227569Sphilip * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25227569Sphilip * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26228078Sphilip * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27228078Sphilip * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28228078Sphilip * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29227569Sphilip * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30227569Sphilip * SUCH DAMAGE. 31227569Sphilip */ 32227569Sphilip 33227569Sphilip#if 0 34227569Sphilip#ifndef lint 35227569Sphilipstatic char const copyright[] = 36227569Sphilip"@(#) Copyright (c) 1989, 1993, 1994\n\ 37227569Sphilip The Regents of the University of California. All rights reserved.\n"; 38227569Sphilip#endif /* not lint */ 39227569Sphilip 40227569Sphilip#ifndef lint 41227569Sphilipstatic char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94"; 42227569Sphilip#endif /* not lint */ 43227569Sphilip#endif 44227569Sphilip#include <sys/cdefs.h> 45227569Sphilip__FBSDID("$FreeBSD: head/bin/mv/mv.c 284916 2015-06-28 21:36:00Z jilles $"); 46227569Sphilip 47227569Sphilip#include <sys/types.h> 48227569Sphilip#include <sys/acl.h> 49227569Sphilip#include <sys/param.h> 50227569Sphilip#include <sys/time.h> 51227569Sphilip#include <sys/wait.h> 52227569Sphilip#include <sys/stat.h> 53227569Sphilip#include <sys/mount.h> 54227569Sphilip 55227569Sphilip#include <err.h> 56227569Sphilip#include <errno.h> 57227569Sphilip#include <fcntl.h> 58227569Sphilip#include <grp.h> 59227569Sphilip#include <limits.h> 60227569Sphilip#include <paths.h> 61227569Sphilip#include <pwd.h> 62227569Sphilip#include <stdio.h> 63227569Sphilip#include <stdlib.h> 64227569Sphilip#include <string.h> 65227569Sphilip#include <sysexits.h> 66227569Sphilip#include <unistd.h> 67227569Sphilip 68227569Sphilip/* Exit code for a failed exec. */ 69227569Sphilip#define EXEC_FAILED 127 70227569Sphilip 71227569Sphilipstatic int fflg, hflg, iflg, nflg, vflg; 72227569Sphilip 73227569Sphilipstatic int copy(const char *, const char *); 74227569Sphilipstatic int do_move(const char *, const char *); 75227569Sphilipstatic int fastcopy(const char *, const char *, struct stat *); 76227569Sphilipstatic void usage(void); 77227569Sphilipstatic void preserve_fd_acls(int source_fd, int dest_fd, const char *source_path, 78227569Sphilip const char *dest_path); 79227569Sphilip 80227569Sphilipint 81227569Sphilipmain(int argc, char *argv[]) 82227569Sphilip{ 83227569Sphilip size_t baselen, len; 84227569Sphilip int rval; 85227569Sphilip char *p, *endp; 86227569Sphilip struct stat sb; 87227569Sphilip int ch; 88227569Sphilip char path[PATH_MAX]; 89227569Sphilip 90227569Sphilip while ((ch = getopt(argc, argv, "fhinv")) != -1) 91227569Sphilip switch (ch) { 92227569Sphilip case 'h': 93227569Sphilip hflg = 1; 94227569Sphilip break; 95227569Sphilip case 'i': 96227569Sphilip iflg = 1; 97227569Sphilip fflg = nflg = 0; 98227569Sphilip break; 99227569Sphilip case 'f': 100227569Sphilip fflg = 1; 101227569Sphilip iflg = nflg = 0; 102227569Sphilip break; 103227569Sphilip case 'n': 104227569Sphilip nflg = 1; 105227569Sphilip fflg = iflg = 0; 106227569Sphilip break; 107227569Sphilip case 'v': 108227569Sphilip vflg = 1; 109227569Sphilip break; 110227569Sphilip default: 111227569Sphilip usage(); 112227569Sphilip } 113227569Sphilip argc -= optind; 114227569Sphilip argv += optind; 115227569Sphilip 116227569Sphilip if (argc < 2) 117227569Sphilip usage(); 118227569Sphilip 119227569Sphilip /* 120227569Sphilip * If the stat on the target fails or the target isn't a directory, 121227569Sphilip * try the move. More than 2 arguments is an error in this case. 122227569Sphilip */ 123227569Sphilip if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) { 124227569Sphilip if (argc > 2) 125227569Sphilip errx(1, "%s is not a directory", argv[argc - 1]); 126227569Sphilip exit(do_move(argv[0], argv[1])); 127227569Sphilip } 128227569Sphilip 129227569Sphilip /* 130227569Sphilip * If -h was specified, treat the target as a symlink instead of 131227569Sphilip * directory. 132227569Sphilip */ 133227569Sphilip if (hflg) { 134227569Sphilip if (argc > 2) 135227569Sphilip usage(); 136227569Sphilip if (lstat(argv[1], &sb) == 0 && S_ISLNK(sb.st_mode)) 137227569Sphilip exit(do_move(argv[0], argv[1])); 138227569Sphilip } 139227569Sphilip 140227569Sphilip /* It's a directory, move each file into it. */ 141227569Sphilip if (strlen(argv[argc - 1]) > sizeof(path) - 1) 142227569Sphilip errx(1, "%s: destination pathname too long", *argv); 143227569Sphilip (void)strcpy(path, argv[argc - 1]); 144227569Sphilip baselen = strlen(path); 145227569Sphilip endp = &path[baselen]; 146227569Sphilip if (!baselen || *(endp - 1) != '/') { 147227569Sphilip *endp++ = '/'; 148227569Sphilip ++baselen; 149227569Sphilip } 150227569Sphilip for (rval = 0; --argc; ++argv) { 151227569Sphilip /* 152227569Sphilip * Find the last component of the source pathname. It 153227569Sphilip * may have trailing slashes. 154227569Sphilip */ 155227569Sphilip p = *argv + strlen(*argv); 156227569Sphilip while (p != *argv && p[-1] == '/') 157227569Sphilip --p; 158227569Sphilip while (p != *argv && p[-1] != '/') 159227569Sphilip --p; 160227569Sphilip 161227569Sphilip if ((baselen + (len = strlen(p))) >= PATH_MAX) { 162227569Sphilip warnx("%s: destination pathname too long", *argv); 163227569Sphilip rval = 1; 164227569Sphilip } else { 165227569Sphilip memmove(endp, p, (size_t)len + 1); 166227569Sphilip if (do_move(*argv, path)) 167227569Sphilip rval = 1; 168227569Sphilip } 169227569Sphilip } 170227569Sphilip exit(rval); 171227569Sphilip} 172227569Sphilip 173227569Sphilipstatic int 174227569Sphilipdo_move(const char *from, const char *to) 175227569Sphilip{ 176227569Sphilip struct stat sb; 177227569Sphilip int ask, ch, first; 178227569Sphilip char modep[15]; 179227569Sphilip 180227569Sphilip /* 181227569Sphilip * Check access. If interactive and file exists, ask user if it 182227569Sphilip * should be replaced. Otherwise if file exists but isn't writable 183227569Sphilip * make sure the user wants to clobber it. 184227569Sphilip */ 185227569Sphilip if (!fflg && !access(to, F_OK)) { 186227569Sphilip 187227569Sphilip /* prompt only if source exist */ 188227569Sphilip if (lstat(from, &sb) == -1) { 189227569Sphilip warn("%s", from); 190227569Sphilip return (1); 191227569Sphilip } 192227569Sphilip 193227569Sphilip#define YESNO "(y/n [n]) " 194227569Sphilip ask = 0; 195227569Sphilip if (nflg) { 196227569Sphilip if (vflg) 197227569Sphilip printf("%s not overwritten\n", to); 198227569Sphilip return (0); 199227569Sphilip } else if (iflg) { 200227569Sphilip (void)fprintf(stderr, "overwrite %s? %s", to, YESNO); 201227569Sphilip ask = 1; 202227569Sphilip } else if (access(to, W_OK) && !stat(to, &sb) && isatty(STDIN_FILENO)) { 203227569Sphilip strmode(sb.st_mode, modep); 204227569Sphilip (void)fprintf(stderr, "override %s%s%s/%s for %s? %s", 205227569Sphilip modep + 1, modep[9] == ' ' ? "" : " ", 206227569Sphilip user_from_uid((unsigned long)sb.st_uid, 0), 207227569Sphilip group_from_gid((unsigned long)sb.st_gid, 0), to, YESNO); 208227569Sphilip ask = 1; 209227569Sphilip } 210227569Sphilip if (ask) { 211227569Sphilip first = ch = getchar(); 212227569Sphilip while (ch != '\n' && ch != EOF) 213227569Sphilip ch = getchar(); 214227569Sphilip if (first != 'y' && first != 'Y') { 215227569Sphilip (void)fprintf(stderr, "not overwritten\n"); 216227569Sphilip return (0); 217227569Sphilip } 218227569Sphilip } 219227569Sphilip } 220227569Sphilip /* 221227569Sphilip * Rename on FreeBSD will fail with EISDIR and ENOTDIR, before failing 222227569Sphilip * with EXDEV. Therefore, copy() doesn't have to perform the checks 223227569Sphilip * specified in the Step 3 of the POSIX mv specification. 224227569Sphilip */ 225227569Sphilip if (!rename(from, to)) { 226227569Sphilip if (vflg) 227227569Sphilip printf("%s -> %s\n", from, to); 228227569Sphilip return (0); 229227569Sphilip } 230227569Sphilip 231227569Sphilip if (errno == EXDEV) { 232227569Sphilip struct statfs sfs; 233227569Sphilip char path[PATH_MAX]; 234227569Sphilip 235227569Sphilip /* 236227569Sphilip * If the source is a symbolic link and is on another 237227569Sphilip * filesystem, it can be recreated at the destination. 238227569Sphilip */ 239227569Sphilip if (lstat(from, &sb) == -1) { 240227569Sphilip warn("%s", from); 241227569Sphilip return (1); 242227569Sphilip } 243227569Sphilip if (!S_ISLNK(sb.st_mode)) { 244227569Sphilip /* Can't mv(1) a mount point. */ 245227569Sphilip if (realpath(from, path) == NULL) { 246227569Sphilip warn("cannot resolve %s: %s", from, path); 247227569Sphilip return (1); 248227569Sphilip } 249227569Sphilip if (!statfs(path, &sfs) && 250227569Sphilip !strcmp(path, sfs.f_mntonname)) { 251227569Sphilip warnx("cannot rename a mount point"); 252227569Sphilip return (1); 253227569Sphilip } 254227569Sphilip } 255227569Sphilip } else { 256227569Sphilip warn("rename %s to %s", from, to); 257227569Sphilip return (1); 258227569Sphilip } 259227569Sphilip 260227569Sphilip /* 261227569Sphilip * If rename fails because we're trying to cross devices, and 262227569Sphilip * it's a regular file, do the copy internally; otherwise, use 263227569Sphilip * cp and rm. 264227569Sphilip */ 265227569Sphilip if (lstat(from, &sb)) { 266227569Sphilip warn("%s", from); 267227569Sphilip return (1); 268227569Sphilip } 269227569Sphilip return (S_ISREG(sb.st_mode) ? 270227569Sphilip fastcopy(from, to, &sb) : copy(from, to)); 271227569Sphilip} 272227569Sphilip 273227569Sphilipstatic int 274227569Sphilipfastcopy(const char *from, const char *to, struct stat *sbp) 275227569Sphilip{ 276227569Sphilip struct timespec ts[2]; 277227569Sphilip static u_int blen = MAXPHYS; 278227569Sphilip static char *bp = NULL; 279227569Sphilip mode_t oldmode; 280227569Sphilip int nread, from_fd, to_fd; 281227569Sphilip struct stat tsb; 282227569Sphilip 283227569Sphilip if ((from_fd = open(from, O_RDONLY, 0)) < 0) { 284227569Sphilip warn("fastcopy: open() failed (from): %s", from); 285227569Sphilip return (1); 286227569Sphilip } 287227569Sphilip if (bp == NULL && (bp = malloc((size_t)blen)) == NULL) { 288227569Sphilip warnx("malloc(%u) failed", blen); 289227569Sphilip return (1); 290227569Sphilip } 291227569Sphilip while ((to_fd = 292227569Sphilip open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) { 293227569Sphilip if (errno == EEXIST && unlink(to) == 0) 294227569Sphilip continue; 295227569Sphilip warn("fastcopy: open() failed (to): %s", to); 296227569Sphilip (void)close(from_fd); 297227569Sphilip return (1); 298227569Sphilip } 299227569Sphilip while ((nread = read(from_fd, bp, (size_t)blen)) > 0) 300227569Sphilip if (write(to_fd, bp, (size_t)nread) != nread) { 301227569Sphilip warn("fastcopy: write() failed: %s", to); 302227569Sphilip goto err; 303227569Sphilip } 304227569Sphilip if (nread < 0) { 305227569Sphilip warn("fastcopy: read() failed: %s", from); 306227569Sphiliperr: if (unlink(to)) 307227569Sphilip warn("%s: remove", to); 308227569Sphilip (void)close(from_fd); 309227569Sphilip (void)close(to_fd); 310227569Sphilip return (1); 311227569Sphilip } 312227569Sphilip 313227569Sphilip oldmode = sbp->st_mode & ALLPERMS; 314227569Sphilip if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) { 315227569Sphilip warn("%s: set owner/group (was: %lu/%lu)", to, 316227569Sphilip (u_long)sbp->st_uid, (u_long)sbp->st_gid); 317227569Sphilip if (oldmode & (S_ISUID | S_ISGID)) { 318227569Sphilip warnx( 319227569Sphilip"%s: owner/group changed; clearing suid/sgid (mode was 0%03o)", 320227569Sphilip to, oldmode); 321227569Sphilip sbp->st_mode &= ~(S_ISUID | S_ISGID); 322227569Sphilip } 323227569Sphilip } 324227569Sphilip if (fchmod(to_fd, sbp->st_mode)) 325227569Sphilip warn("%s: set mode (was: 0%03o)", to, oldmode); 326227569Sphilip /* 327227569Sphilip * POSIX 1003.2c states that if _POSIX_ACL_EXTENDED is in effect 328227569Sphilip * for dest_file, then its ACLs shall reflect the ACLs of the 329227569Sphilip * source_file. 330227569Sphilip */ 331227569Sphilip preserve_fd_acls(from_fd, to_fd, from, to); 332227569Sphilip (void)close(from_fd); 333227569Sphilip /* 334227569Sphilip * XXX 335227569Sphilip * NFS doesn't support chflags; ignore errors unless there's reason 336227569Sphilip * to believe we're losing bits. (Note, this still won't be right 337227569Sphilip * if the server supports flags and we were trying to *remove* flags 338227569Sphilip * on a file that we copied, i.e., that we didn't create.) 339227569Sphilip */ 340227569Sphilip if (fstat(to_fd, &tsb) == 0) { 341227569Sphilip if ((sbp->st_flags & ~UF_ARCHIVE) != 342227569Sphilip (tsb.st_flags & ~UF_ARCHIVE)) { 343227569Sphilip if (fchflags(to_fd, 344227569Sphilip sbp->st_flags | (tsb.st_flags & UF_ARCHIVE))) 345227569Sphilip if (errno != EOPNOTSUPP || 346227569Sphilip ((sbp->st_flags & ~UF_ARCHIVE) != 0)) 347227569Sphilip warn("%s: set flags (was: 0%07o)", 348227569Sphilip to, sbp->st_flags); 349227569Sphilip } 350227569Sphilip } else 351227569Sphilip warn("%s: cannot stat", to); 352227569Sphilip 353227569Sphilip ts[0] = sbp->st_atim; 354227569Sphilip ts[1] = sbp->st_mtim; 355227569Sphilip if (futimens(to_fd, ts)) 356227569Sphilip warn("%s: set times", to); 357227569Sphilip 358227569Sphilip if (close(to_fd)) { 359227569Sphilip warn("%s", to); 360227569Sphilip return (1); 361227569Sphilip } 362227569Sphilip 363227569Sphilip if (unlink(from)) { 364227569Sphilip warn("%s: remove", from); 365227569Sphilip return (1); 366227569Sphilip } 367227569Sphilip if (vflg) 368227569Sphilip printf("%s -> %s\n", from, to); 369227569Sphilip return (0); 370227569Sphilip} 371227569Sphilip 372227569Sphilipstatic int 373227569Sphilipcopy(const char *from, const char *to) 374227569Sphilip{ 375227569Sphilip struct stat sb; 376227569Sphilip int pid, status; 377227569Sphilip 378227569Sphilip if (lstat(to, &sb) == 0) { 379227569Sphilip /* Destination path exists. */ 380227569Sphilip if (S_ISDIR(sb.st_mode)) { 381227569Sphilip if (rmdir(to) != 0) { 382227569Sphilip warn("rmdir %s", to); 383227569Sphilip return (1); 384227569Sphilip } 385227569Sphilip } else { 386227569Sphilip if (unlink(to) != 0) { 387227569Sphilip warn("unlink %s", to); 388227569Sphilip return (1); 389227569Sphilip } 390227569Sphilip } 391227569Sphilip } else if (errno != ENOENT) { 392227569Sphilip warn("%s", to); 393227569Sphilip return (1); 394227569Sphilip } 395227569Sphilip 396227569Sphilip /* Copy source to destination. */ 397227569Sphilip if (!(pid = vfork())) { 398227569Sphilip execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to, 399227569Sphilip (char *)NULL); 400227569Sphilip _exit(EXEC_FAILED); 401227569Sphilip } 402227569Sphilip if (waitpid(pid, &status, 0) == -1) { 403227569Sphilip warn("%s %s %s: waitpid", _PATH_CP, from, to); 404227569Sphilip return (1); 405227569Sphilip } 406227569Sphilip if (!WIFEXITED(status)) { 407227569Sphilip warnx("%s %s %s: did not terminate normally", 408227569Sphilip _PATH_CP, from, to); 409227569Sphilip return (1); 410227569Sphilip } 411227569Sphilip switch (WEXITSTATUS(status)) { 412227569Sphilip case 0: 413227569Sphilip break; 414227569Sphilip case EXEC_FAILED: 415227569Sphilip warnx("%s %s %s: exec failed", _PATH_CP, from, to); 416227569Sphilip return (1); 417227569Sphilip default: 418227569Sphilip warnx("%s %s %s: terminated with %d (non-zero) status", 419227569Sphilip _PATH_CP, from, to, WEXITSTATUS(status)); 420227569Sphilip return (1); 421227569Sphilip } 422227569Sphilip 423227569Sphilip /* Delete the source. */ 424227569Sphilip if (!(pid = vfork())) { 425227569Sphilip execl(_PATH_RM, "mv", "-rf", "--", from, (char *)NULL); 426227569Sphilip _exit(EXEC_FAILED); 427227569Sphilip } 428227569Sphilip if (waitpid(pid, &status, 0) == -1) { 429227569Sphilip warn("%s %s: waitpid", _PATH_RM, from); 430227569Sphilip return (1); 431227569Sphilip } 432227569Sphilip if (!WIFEXITED(status)) { 433227569Sphilip warnx("%s %s: did not terminate normally", _PATH_RM, from); 434227569Sphilip return (1); 435227569Sphilip } 436227569Sphilip switch (WEXITSTATUS(status)) { 437227569Sphilip case 0: 438227569Sphilip break; 439227569Sphilip case EXEC_FAILED: 440227569Sphilip warnx("%s %s: exec failed", _PATH_RM, from); 441227569Sphilip return (1); 442227569Sphilip default: 443227569Sphilip warnx("%s %s: terminated with %d (non-zero) status", 444227569Sphilip _PATH_RM, from, WEXITSTATUS(status)); 445227569Sphilip return (1); 446227569Sphilip } 447227569Sphilip return (0); 448227569Sphilip} 449227569Sphilip 450227569Sphilipstatic void 451227569Sphilippreserve_fd_acls(int source_fd, int dest_fd, const char *source_path, 452227569Sphilip const char *dest_path) 453227569Sphilip{ 454227569Sphilip acl_t acl; 455227569Sphilip acl_type_t acl_type; 456227569Sphilip int acl_supported = 0, ret, trivial; 457227569Sphilip 458227569Sphilip ret = fpathconf(source_fd, _PC_ACL_NFS4); 459227569Sphilip if (ret > 0 ) { 460227569Sphilip acl_supported = 1; 461227569Sphilip acl_type = ACL_TYPE_NFS4; 462227569Sphilip } else if (ret < 0 && errno != EINVAL) { 463227569Sphilip warn("fpathconf(..., _PC_ACL_NFS4) failed for %s", 464227569Sphilip source_path); 465227569Sphilip return; 466227569Sphilip } 467227569Sphilip if (acl_supported == 0) { 468227569Sphilip ret = fpathconf(source_fd, _PC_ACL_EXTENDED); 469227569Sphilip if (ret > 0 ) { 470227569Sphilip acl_supported = 1; 471227569Sphilip acl_type = ACL_TYPE_ACCESS; 472227569Sphilip } else if (ret < 0 && errno != EINVAL) { 473227569Sphilip warn("fpathconf(..., _PC_ACL_EXTENDED) failed for %s", 474227569Sphilip source_path); 475227569Sphilip return; 476227569Sphilip } 477227569Sphilip } 478227569Sphilip if (acl_supported == 0) 479227569Sphilip return; 480227569Sphilip 481227569Sphilip acl = acl_get_fd_np(source_fd, acl_type); 482227569Sphilip if (acl == NULL) { 483227569Sphilip warn("failed to get acl entries for %s", source_path); 484227569Sphilip return; 485227569Sphilip } 486227569Sphilip if (acl_is_trivial_np(acl, &trivial)) { 487227569Sphilip warn("acl_is_trivial() failed for %s", source_path); 488227569Sphilip acl_free(acl); 489227569Sphilip return; 490227569Sphilip } 491227569Sphilip if (trivial) { 492227569Sphilip acl_free(acl); 493227569Sphilip return; 494227569Sphilip } 495227569Sphilip if (acl_set_fd_np(dest_fd, acl, acl_type) < 0) { 496227569Sphilip warn("failed to set acl entries for %s", dest_path); 497227569Sphilip acl_free(acl); 498227569Sphilip return; 499227569Sphilip } 500227569Sphilip acl_free(acl); 501227569Sphilip} 502227569Sphilip 503227569Sphilipstatic void 504227569Sphilipusage(void) 505227569Sphilip{ 506227569Sphilip 507227569Sphilip (void)fprintf(stderr, "%s\n%s\n", 508227569Sphilip "usage: mv [-f | -i | -n] [-hv] source target", 509227569Sphilip " mv [-f | -i | -n] [-v] source ... directory"); 510227569Sphilip exit(EX_USAGE); 511227569Sphilip} 512227569Sphilip