2 * Copyright (c) 2010, Frank Lahm <franklahm@googlemail.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
17 #endif /* HAVE_CONFIG_H */
19 #include <sys/types.h>
31 #include <atalk/ftw.h>
32 #include <atalk/adouble.h>
33 #include <atalk/vfs.h>
34 #include <atalk/util.h>
35 #include <atalk/unix.h>
36 #include <atalk/volume.h>
37 #include <atalk/volinfo.h>
38 #include <atalk/bstrlib.h>
39 #include <atalk/bstradd.h>
40 #include <atalk/queue.h>
44 #define STRIP_TRAILING_SLASH(p) { \
45 while ((p).p_end > (p).p_path + 1 && (p).p_end[-1] == '/') \
49 static int fflg, iflg, nflg, vflg;
51 static afpvol_t svolume, dvolume;
52 static cnid_t did, pdid;
53 static volatile sig_atomic_t alarmed;
54 static char *netatalk_dirs[] = {
61 static int copy(const char *, const char *);
62 static int do_move(const char *, const char *);
63 static int fastcopy(const char *, const char *, struct stat *);
64 static void preserve_fd_acls(int source_fd, int dest_fd, const char *source_path,
65 const char *dest_path);
67 Check for netatalk special folders e.g. ".AppleDB" or ".AppleDesktop"
68 Returns pointer to name or NULL.
70 static const char *check_netatalk_dirs(const char *name)
74 for (c=0; netatalk_dirs[c]; c++) {
75 if ((strcmp(name, netatalk_dirs[c])) == 0)
76 return netatalk_dirs[c];
83 catch SIGINT and SIGTERM which cause clean exit. Ignore anything else.
86 static void sig_handler(int signo)
92 static void set_signal(void)
96 sv.sa_handler = sig_handler;
97 sv.sa_flags = SA_RESTART;
98 sigemptyset(&sv.sa_mask);
99 if (sigaction(SIGTERM, &sv, NULL) < 0)
100 ERROR("error in sigaction(SIGTERM): %s", strerror(errno));
102 if (sigaction(SIGINT, &sv, NULL) < 0)
103 ERROR("error in sigaction(SIGINT): %s", strerror(errno));
105 memset(&sv, 0, sizeof(struct sigaction));
106 sv.sa_handler = SIG_IGN;
107 sigemptyset(&sv.sa_mask);
109 if (sigaction(SIGABRT, &sv, NULL) < 0)
110 ERROR("error in sigaction(SIGABRT): %s", strerror(errno));
112 if (sigaction(SIGHUP, &sv, NULL) < 0)
113 ERROR("error in sigaction(SIGHUP): %s", strerror(errno));
115 if (sigaction(SIGQUIT, &sv, NULL) < 0)
116 ERROR("error in sigaction(SIGQUIT): %s", strerror(errno));
119 static void usage_mv(void)
122 "Usage: ad mv [-f | -i | -n] [-v] source target\n"
123 " ad mv [-f | -i | -n] [-v] source ... directory\n\n"
124 "Move files around within an AFP volume, updating the CNID\n"
125 "database as needed. If either:\n"
126 " - source or destination is not an AFP volume\n"
127 " - source volume != destinatio volume\n"
128 "the files are copied and removed from the source.\n\n"
129 "The following options are available:\n\n"
130 " -f Do not prompt for confirmation before overwriting the destination\n"
131 " path. (The -f option overrides any previous -i or -n options.)\n"
132 " -i Cause mv to write a prompt to standard error before moving a file\n"
133 " that would overwrite an existing file. If the response from the\n"
134 " standard input begins with the character `y' or `Y', the move is\n"
135 " attempted. (The -i option overrides any previous -f or -n\n"
137 " -n Do not overwrite an existing file. (The -n option overrides any\n"
138 " previous -f or -i options.)\n"
139 " -v Cause mv to be verbose, showing files after they are moved.\n"
144 int ad_mv(int argc, char *argv[])
151 char path[MAXPATHLEN];
160 while ((ch = getopt(argc, argv, "finv")) != -1)
189 if (openvol(argv[argc - 1], &dvolume) != 0) {
190 SLOG("Error opening CNID database for %s: ", argv[argc - 1]);
195 * If the stat on the target fails or the target isn't a directory,
196 * try the move. More than 2 arguments is an error in this case.
198 if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
201 if (openvol(argv[0], &svolume) != 0) {
202 SLOG("Error opening CNID database for %s: ", argv[0]);
205 rval = do_move(argv[0], argv[1]);
211 /* It's a directory, move each file into it. */
212 if (strlen(argv[argc - 1]) > sizeof(path) - 1)
213 ERROR("%s: destination pathname too long", *argv);
215 (void)strcpy(path, argv[argc - 1]);
216 baselen = strlen(path);
217 endp = &path[baselen];
218 if (!baselen || *(endp - 1) != '/') {
223 for (rval = 0; --argc; ++argv) {
225 * Find the last component of the source pathname. It
226 * may have trailing slashes.
228 p = *argv + strlen(*argv);
229 while (p != *argv && p[-1] == '/')
231 while (p != *argv && p[-1] != '/')
234 if ((baselen + (len = strlen(p))) >= PATH_MAX) {
235 SLOG("%s: destination pathname too long", *argv);
238 memmove(endp, p, (size_t)len + 1);
239 if (openvol(*argv, &svolume) != 0) {
240 SLOG("Error opening CNID database for %s: ", argv[0]);
244 if (do_move(*argv, path))
255 static int do_move(const char *from, const char *to)
261 * Check access. If interactive and file exists, ask user if it
262 * should be replaced. Otherwise if file exists but isn't writable
263 * make sure the user wants to clobber it.
265 if (!fflg && !access(to, F_OK)) {
267 /* prompt only if source exist */
268 if (lstat(from, &sb) == -1) {
269 SLOG("%s: %s", from, strerror(errno));
276 printf("%s not overwritten\n", to);
279 (void)fprintf(stderr, "overwrite %s? (y/n [n]) ", to);
281 } else if (access(to, W_OK) && !stat(to, &sb)) {
282 (void)fprintf(stderr, "override for %s? (y/n [n]) ", to);
286 first = ch = getchar();
287 while (ch != '\n' && ch != EOF)
289 if (first != 'y' && first != 'Y') {
290 (void)fprintf(stderr, "not overwritten\n");
298 * Besides the usual EXDEV we copy instead of moving if
299 * 1) source AFP volume != dest AFP volume
300 * 2) either source or dest isn't even an AFP volume
302 if (!svolume.volinfo.v_path
303 || !dvolume.volinfo.v_path
304 || strcmp(svolume.volinfo.v_path, dvolume.volinfo.v_path) != 0)
309 if ((cnid = cnid_for_path(&svolume, from, &did)) == CNID_INVALID) {
310 SLOG("Couldn't resolve CNID for %s", from);
314 if (stat(from, &sb) != 0) {
315 SLOG("Cant stat %s: %s", to, strerror(errno));
319 if (rename(from, to) != 0) {
320 if (errno == EXDEV) {
322 char path[MAXPATHLEN];
325 * If the source is a symbolic link and is on another
326 * filesystem, it can be recreated at the destination.
328 if (lstat(from, &sb) == -1) {
329 SLOG("%s: %s", from, strerror(errno));
332 if (!S_ISLNK(sb.st_mode)) {
333 /* Can't mv(1) a mount point. */
334 if (realpath(from, path) == NULL) {
335 SLOG("cannot resolve %s: %s: %s", from, path, strerror(errno));
339 } else { /* != EXDEV */
340 SLOG("rename %s to %s: %s", from, to, strerror(errno));
345 switch (sb.st_mode & S_IFMT) {
347 if (dvolume.volume.vfs->vfs_renamefile(&dvolume.volume, -1, from, to) != 0) {
348 SLOG("Error moving adouble file for %s", from);
355 SLOG("Not a file or dir: %s", from);
359 /* get CNID of new parent dir */
360 cnid_t newpdid, newdid;
361 if ((newdid = cnid_for_paths_parent(&dvolume, to, &newpdid)) == CNID_INVALID) {
362 SLOG("Couldn't resolve CNID for parent of %s", to);
366 if (stat(to, &sb) != 0) {
367 SLOG("Cant stat %s: %s", to, strerror(errno));
371 char *p = strdup(to);
372 char *name = basename(p);
373 if (cnid_update(dvolume.volume.v_cdb, cnid, &sb, newdid, name, strlen(name)) != 0) {
374 SLOG("Cant update CNID for: %s", to);
380 ad_init(&ad, dvolume.volinfo.v_adouble, dvolume.volinfo.v_ad_options);
381 if (ad_open_metadata(to, S_ISDIR(sb.st_mode) ? ADFLAGS_DIR : 0, O_RDWR, &ad) != 0) {
382 SLOG("Error opening adouble for: %s", to);
385 ad_setid(&ad, sb.st_dev, sb.st_ino, cnid, newdid, dvolume.db_stamp);
387 ad_close_metadata(&ad);
390 printf("%s -> %s\n", from, to);
396 * If rename fails because we're trying to cross devices, and
397 * it's a regular file, do the copy internally; otherwise, use
400 if (lstat(from, &sb)) {
401 SLOG("%s: %s", from, strerror(errno));
404 return (S_ISREG(sb.st_mode) ?
405 fastcopy(from, to, &sb) : copy(from, to));
410 static int fastcopy(const char *from, const char *to, struct stat *sbp)
412 struct timeval tval[2];
416 int nread, from_fd, to_fd;
418 if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
419 SLOG("%s: %s", from, strerror(errno));
422 if (blen < sbp->st_blksize) {
425 if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) {
427 SLOG("malloc failed");
430 blen = sbp->st_blksize;
432 while ((to_fd = open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) {
433 if (errno == EEXIST && unlink(to) == 0)
435 SLOG("%s: %s", to, strerror(errno));
436 (void)close(from_fd);
439 while ((nread = read(from_fd, bp, (size_t)blen)) > 0)
440 if (write(to_fd, bp, (size_t)nread) != nread) {
441 SLOG("%s: %s", to, strerror(errno));
445 SLOG("%s: %s", from, strerror(errno));
448 SLOG("%s: remove", to, strerror(errno));
449 (void)close(from_fd);
454 oldmode = sbp->st_mode & (S_IRWXU | S_IRWXG | S_IRWXO | S_ISUID | S_ISGID);
455 if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
456 SLOG("%s: set owner/group (was: %lu/%lu)", to,
457 (u_long)sbp->st_uid, (u_long)sbp->st_gid, strerror(errno));
458 if (oldmode & S_ISUID) {
459 SLOG("%s: owner/group changed; clearing suid (mode was 0%03o)",
461 sbp->st_mode &= ~S_ISUID;
464 if (fchmod(to_fd, sbp->st_mode))
465 SLOG("%s: set mode (was: 0%03o): %s", to, oldmode, strerror(errno));
467 * POSIX 1003.2c states that if _POSIX_ACL_EXTENDED is in effect
468 * for dest_file, then its ACLs shall reflect the ACLs of the
471 preserve_fd_acls(from_fd, to_fd, from, to);
472 (void)close(from_fd);
474 tval[0].tv_sec = sbp->st_atime;
475 tval[1].tv_sec = sbp->st_mtime;
476 tval[0].tv_usec = tval[1].tv_usec = 0;
477 if (utimes(to, tval))
478 SLOG("%s: set times: %s", to, strerror(errno));
481 SLOG("%s: %s", to, strerror(errno));
486 SLOG("%s: remove: %s", from, strerror(errno));
490 printf("%s -> %s\n", from, to);
494 static int copy(const char *from, const char *to)
499 if (lstat(to, &sb) == 0) {
500 /* Destination path exists. */
501 if (S_ISDIR(sb.st_mode)) {
502 if (rmdir(to) != 0) {
503 SLOG("rmdir %s: %s", to, strerror(errno));
507 if (unlink(to) != 0) {
508 SLOG("unlink %s: %s", to, strerror(errno));
512 } else if (errno != ENOENT) {
513 SLOG("%s: %s", to, strerror(errno));
517 /* Copy source to destination. */
518 if (!(pid = fork())) {
519 execl(_PATH_AD, "ad", "cp", vflg ? "-Rpv" : "-Rp", from, to, (char *)NULL);
522 while ((waitpid(pid, &status, 0)) == -1) {
525 SLOG("%s cp -R %s %s: waitpid: %s", _PATH_AD, from, to, strerror(errno));
528 if (!WIFEXITED(status)) {
529 SLOG("%s cp -R %s %s: did not terminate normally", _PATH_AD, from, to);
532 switch (WEXITSTATUS(status)) {
536 SLOG("%s cp -R %s %s: terminated with %d (non-zero) status",
537 _PATH_AD, from, to, WEXITSTATUS(status));
541 /* Delete the source. */
542 if (!(pid = fork())) {
543 execl(_PATH_AD, "ad", "rm", "-R", from, (char *)NULL);
546 while ((waitpid(pid, &status, 0)) == -1) {
549 SLOG("%s rm -R %s: waitpid: %s", _PATH_AD, from, strerror(errno));
552 if (!WIFEXITED(status)) {
553 SLOG("%s rm -R %s: did not terminate normally", _PATH_AD, from);
556 switch (WEXITSTATUS(status)) {
560 SLOG("%s rm -R %s: terminated with %d (non-zero) status",
561 _PATH_AD, from, WEXITSTATUS(status));
568 preserve_fd_acls(int source_fd,
570 const char *source_path,
571 const char *dest_path)