| 1 | /* |
| 2 | * Routines that are exclusive to the generator process. |
| 3 | * |
| 4 | * Copyright (C) 1996-2000 Andrew Tridgell |
| 5 | * Copyright (C) 1996 Paul Mackerras |
| 6 | * Copyright (C) 2002 Martin Pool <mbp@samba.org> |
| 7 | * Copyright (C) 2003-2009 Wayne Davison |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 3 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, visit the http://fsf.org website. |
| 21 | */ |
| 22 | |
| 23 | #include "rsync.h" |
| 24 | #include "inums.h" |
| 25 | #include "ifuncs.h" |
| 26 | |
| 27 | extern int dry_run; |
| 28 | extern int do_xfers; |
| 29 | extern int stdout_format_has_i; |
| 30 | extern int logfile_format_has_i; |
| 31 | extern int am_root; |
| 32 | extern int am_server; |
| 33 | extern int am_daemon; |
| 34 | extern int inc_recurse; |
| 35 | extern int relative_paths; |
| 36 | extern int implied_dirs; |
| 37 | extern int keep_dirlinks; |
| 38 | extern int preserve_acls; |
| 39 | extern int preserve_xattrs; |
| 40 | extern int preserve_links; |
| 41 | extern int preserve_devices; |
| 42 | extern int preserve_specials; |
| 43 | extern int preserve_hard_links; |
| 44 | extern int preserve_executability; |
| 45 | extern int preserve_perms; |
| 46 | extern int preserve_times; |
| 47 | extern int delete_mode; |
| 48 | extern int delete_before; |
| 49 | extern int delete_during; |
| 50 | extern int delete_after; |
| 51 | extern int missing_args; |
| 52 | extern int msgdone_cnt; |
| 53 | extern int ignore_errors; |
| 54 | extern int remove_source_files; |
| 55 | extern int delay_updates; |
| 56 | extern int update_only; |
| 57 | extern int human_readable; |
| 58 | extern int ignore_existing; |
| 59 | extern int ignore_non_existing; |
| 60 | extern int inplace; |
| 61 | extern int append_mode; |
| 62 | extern int make_backups; |
| 63 | extern int csum_length; |
| 64 | extern int ignore_times; |
| 65 | extern int size_only; |
| 66 | extern OFF_T max_size; |
| 67 | extern OFF_T min_size; |
| 68 | extern int io_error; |
| 69 | extern int flist_eof; |
| 70 | extern int allowed_lull; |
| 71 | extern int sock_f_out; |
| 72 | extern int protocol_version; |
| 73 | extern int file_total; |
| 74 | extern int fuzzy_basis; |
| 75 | extern int always_checksum; |
| 76 | extern int checksum_len; |
| 77 | extern char *partial_dir; |
| 78 | extern int compare_dest; |
| 79 | extern int copy_dest; |
| 80 | extern int link_dest; |
| 81 | extern int whole_file; |
| 82 | extern int list_only; |
| 83 | extern int read_batch; |
| 84 | extern int safe_symlinks; |
| 85 | extern long block_size; /* "long" because popt can't set an int32. */ |
| 86 | extern int unsort_ndx; |
| 87 | extern int max_delete; |
| 88 | extern int force_delete; |
| 89 | extern int one_file_system; |
| 90 | extern int skipped_deletes; |
| 91 | extern dev_t filesystem_dev; |
| 92 | extern mode_t orig_umask; |
| 93 | extern uid_t our_uid; |
| 94 | extern char *tmpdir; |
| 95 | extern char *basis_dir[MAX_BASIS_DIRS+1]; |
| 96 | extern struct file_list *cur_flist, *first_flist, *dir_flist; |
| 97 | extern filter_rule_list filter_list, daemon_filter_list; |
| 98 | |
| 99 | int maybe_ATTRS_REPORT = 0; |
| 100 | |
| 101 | static dev_t dev_zero; |
| 102 | static int deldelay_size = 0, deldelay_cnt = 0; |
| 103 | static char *deldelay_buf = NULL; |
| 104 | static int deldelay_fd = -1; |
| 105 | static int loopchk_limit; |
| 106 | static int dir_tweaking; |
| 107 | static int symlink_timeset_failed_flags; |
| 108 | static int need_retouch_dir_times; |
| 109 | static int need_retouch_dir_perms; |
| 110 | static const char *solo_file = NULL; |
| 111 | |
| 112 | enum nonregtype { |
| 113 | TYPE_DIR, TYPE_SPECIAL, TYPE_DEVICE, TYPE_SYMLINK |
| 114 | }; |
| 115 | |
| 116 | /* Forward declarations. */ |
| 117 | #ifdef SUPPORT_HARD_LINKS |
| 118 | static void handle_skipped_hlink(struct file_struct *file, int itemizing, |
| 119 | enum logcode code, int f_out); |
| 120 | #endif |
| 121 | |
| 122 | #define EARLY_DELAY_DONE_MSG() (!delay_updates) |
| 123 | #define EARLY_DELETE_DONE_MSG() (!(delete_during == 2 || delete_after)) |
| 124 | |
| 125 | static int start_delete_delay_temp(void) |
| 126 | { |
| 127 | char fnametmp[MAXPATHLEN]; |
| 128 | int save_dry_run = dry_run; |
| 129 | |
| 130 | dry_run = 0; |
| 131 | if (!get_tmpname(fnametmp, "deldelay", False) |
| 132 | || (deldelay_fd = do_mkstemp(fnametmp, 0600)) < 0) { |
| 133 | rprintf(FINFO, "NOTE: Unable to create delete-delay temp file%s.\n", |
| 134 | inc_recurse ? "" : " -- switching to --delete-after"); |
| 135 | delete_during = 0; |
| 136 | delete_after = !inc_recurse; |
| 137 | dry_run = save_dry_run; |
| 138 | return 0; |
| 139 | } |
| 140 | unlink(fnametmp); |
| 141 | dry_run = save_dry_run; |
| 142 | return 1; |
| 143 | } |
| 144 | |
| 145 | static int flush_delete_delay(void) |
| 146 | { |
| 147 | if (deldelay_fd < 0 && !start_delete_delay_temp()) |
| 148 | return 0; |
| 149 | if (write(deldelay_fd, deldelay_buf, deldelay_cnt) != deldelay_cnt) { |
| 150 | rsyserr(FERROR, errno, "flush of delete-delay buffer"); |
| 151 | delete_during = 0; |
| 152 | delete_after = !inc_recurse; |
| 153 | close(deldelay_fd); |
| 154 | return 0; |
| 155 | } |
| 156 | deldelay_cnt = 0; |
| 157 | return 1; |
| 158 | } |
| 159 | |
| 160 | static int remember_delete(struct file_struct *file, const char *fname, int flags) |
| 161 | { |
| 162 | int len; |
| 163 | |
| 164 | if (deldelay_cnt == deldelay_size && !flush_delete_delay()) |
| 165 | return 0; |
| 166 | |
| 167 | if (flags & DEL_NO_UID_WRITE) |
| 168 | deldelay_buf[deldelay_cnt++] = '!'; |
| 169 | |
| 170 | while (1) { |
| 171 | len = snprintf(deldelay_buf + deldelay_cnt, |
| 172 | deldelay_size - deldelay_cnt, |
| 173 | "%x %s%c", |
| 174 | (int)file->mode, fname, '\0'); |
| 175 | if ((deldelay_cnt += len) <= deldelay_size) |
| 176 | break; |
| 177 | deldelay_cnt -= len; |
| 178 | if (!flush_delete_delay()) |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | return 1; |
| 183 | } |
| 184 | |
| 185 | static int read_delay_line(char *buf, int *flags_p) |
| 186 | { |
| 187 | static int read_pos = 0; |
| 188 | int j, len, mode; |
| 189 | char *bp, *past_space; |
| 190 | |
| 191 | while (1) { |
| 192 | for (j = read_pos; j < deldelay_cnt && deldelay_buf[j]; j++) {} |
| 193 | if (j < deldelay_cnt) |
| 194 | break; |
| 195 | if (deldelay_fd < 0) { |
| 196 | if (j > read_pos) |
| 197 | goto invalid_data; |
| 198 | return -1; |
| 199 | } |
| 200 | deldelay_cnt -= read_pos; |
| 201 | if (deldelay_cnt == deldelay_size) |
| 202 | goto invalid_data; |
| 203 | if (deldelay_cnt && read_pos) { |
| 204 | memmove(deldelay_buf, deldelay_buf + read_pos, |
| 205 | deldelay_cnt); |
| 206 | } |
| 207 | len = read(deldelay_fd, deldelay_buf + deldelay_cnt, |
| 208 | deldelay_size - deldelay_cnt); |
| 209 | if (len == 0) { |
| 210 | if (deldelay_cnt) { |
| 211 | rprintf(FERROR, |
| 212 | "ERROR: unexpected EOF in delete-delay file.\n"); |
| 213 | } |
| 214 | return -1; |
| 215 | } |
| 216 | if (len < 0) { |
| 217 | rsyserr(FERROR, errno, |
| 218 | "reading delete-delay file"); |
| 219 | return -1; |
| 220 | } |
| 221 | deldelay_cnt += len; |
| 222 | read_pos = 0; |
| 223 | } |
| 224 | |
| 225 | bp = deldelay_buf + read_pos; |
| 226 | if (*bp == '!') { |
| 227 | bp++; |
| 228 | *flags_p = DEL_NO_UID_WRITE; |
| 229 | } else |
| 230 | *flags_p = 0; |
| 231 | |
| 232 | if (sscanf(bp, "%x ", &mode) != 1) { |
| 233 | invalid_data: |
| 234 | rprintf(FERROR, "ERROR: invalid data in delete-delay file.\n"); |
| 235 | return -1; |
| 236 | } |
| 237 | past_space = strchr(bp, ' ') + 1; |
| 238 | len = j - read_pos - (past_space - bp) + 1; /* count the '\0' */ |
| 239 | read_pos = j + 1; |
| 240 | |
| 241 | if (len > MAXPATHLEN) { |
| 242 | rprintf(FERROR, "ERROR: filename too long in delete-delay file.\n"); |
| 243 | return -1; |
| 244 | } |
| 245 | |
| 246 | /* The caller needs the name in a MAXPATHLEN buffer, so we copy it |
| 247 | * instead of returning a pointer to our buffer. */ |
| 248 | memcpy(buf, past_space, len); |
| 249 | |
| 250 | return mode; |
| 251 | } |
| 252 | |
| 253 | static void do_delayed_deletions(char *delbuf) |
| 254 | { |
| 255 | int mode, flags; |
| 256 | |
| 257 | if (deldelay_fd >= 0) { |
| 258 | if (deldelay_cnt && !flush_delete_delay()) |
| 259 | return; |
| 260 | lseek(deldelay_fd, 0, 0); |
| 261 | } |
| 262 | while ((mode = read_delay_line(delbuf, &flags)) >= 0) |
| 263 | delete_item(delbuf, mode, flags | DEL_RECURSE); |
| 264 | if (deldelay_fd >= 0) |
| 265 | close(deldelay_fd); |
| 266 | } |
| 267 | |
| 268 | /* This function is used to implement per-directory deletion, and is used by |
| 269 | * all the --delete-WHEN options. Note that the fbuf pointer must point to a |
| 270 | * MAXPATHLEN buffer with the name of the directory in it (the functions we |
| 271 | * call will append names onto the end, but the old dir value will be restored |
| 272 | * on exit). */ |
| 273 | static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev) |
| 274 | { |
| 275 | static int already_warned = 0; |
| 276 | struct file_list *dirlist; |
| 277 | char delbuf[MAXPATHLEN]; |
| 278 | int dlen, i; |
| 279 | |
| 280 | if (!fbuf) { |
| 281 | change_local_filter_dir(NULL, 0, 0); |
| 282 | return; |
| 283 | } |
| 284 | |
| 285 | if (DEBUG_GTE(DEL, 2)) |
| 286 | rprintf(FINFO, "delete_in_dir(%s)\n", fbuf); |
| 287 | |
| 288 | if (allowed_lull) |
| 289 | maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH); |
| 290 | |
| 291 | if (io_error && !ignore_errors) { |
| 292 | if (already_warned) |
| 293 | return; |
| 294 | rprintf(FINFO, |
| 295 | "IO error encountered -- skipping file deletion\n"); |
| 296 | already_warned = 1; |
| 297 | return; |
| 298 | } |
| 299 | |
| 300 | dlen = strlen(fbuf); |
| 301 | change_local_filter_dir(fbuf, dlen, F_DEPTH(file)); |
| 302 | |
| 303 | if (one_file_system) { |
| 304 | if (file->flags & FLAG_TOP_DIR) |
| 305 | filesystem_dev = *fs_dev; |
| 306 | else if (filesystem_dev != *fs_dev) |
| 307 | return; |
| 308 | } |
| 309 | |
| 310 | dirlist = get_dirlist(fbuf, dlen, 0); |
| 311 | |
| 312 | /* If an item in dirlist is not found in flist, delete it |
| 313 | * from the filesystem. */ |
| 314 | for (i = dirlist->used; i--; ) { |
| 315 | struct file_struct *fp = dirlist->files[i]; |
| 316 | if (!F_IS_ACTIVE(fp)) |
| 317 | continue; |
| 318 | if (fp->flags & FLAG_MOUNT_DIR && S_ISDIR(fp->mode)) { |
| 319 | if (INFO_GTE(MOUNT, 1)) |
| 320 | rprintf(FINFO, "cannot delete mount point: %s\n", |
| 321 | f_name(fp, NULL)); |
| 322 | continue; |
| 323 | } |
| 324 | /* Here we want to match regardless of file type. Replacement |
| 325 | * of a file with one of another type is handled separately by |
| 326 | * a delete_item call with a DEL_MAKE_ROOM flag. */ |
| 327 | if (flist_find_ignore_dirness(cur_flist, fp) < 0) { |
| 328 | int flags = DEL_RECURSE; |
| 329 | if (!(fp->mode & S_IWUSR) && !am_root && fp->flags & FLAG_OWNED_BY_US) |
| 330 | flags |= DEL_NO_UID_WRITE; |
| 331 | f_name(fp, delbuf); |
| 332 | if (delete_during == 2) { |
| 333 | if (!remember_delete(fp, delbuf, flags)) |
| 334 | break; |
| 335 | } else |
| 336 | delete_item(delbuf, fp->mode, flags); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | flist_free(dirlist); |
| 341 | } |
| 342 | |
| 343 | /* This deletes any files on the receiving side that are not present on the |
| 344 | * sending side. This is used by --delete-before and --delete-after. */ |
| 345 | static void do_delete_pass(void) |
| 346 | { |
| 347 | char fbuf[MAXPATHLEN]; |
| 348 | STRUCT_STAT st; |
| 349 | int j; |
| 350 | |
| 351 | /* dry_run is incremented when the destination doesn't exist yet. */ |
| 352 | if (dry_run > 1 || list_only) |
| 353 | return; |
| 354 | |
| 355 | for (j = 0; j < cur_flist->used; j++) { |
| 356 | struct file_struct *file = cur_flist->sorted[j]; |
| 357 | |
| 358 | f_name(file, fbuf); |
| 359 | |
| 360 | if (!(file->flags & FLAG_CONTENT_DIR)) { |
| 361 | change_local_filter_dir(fbuf, strlen(fbuf), F_DEPTH(file)); |
| 362 | continue; |
| 363 | } |
| 364 | |
| 365 | if (DEBUG_GTE(DEL, 1) && file->flags & FLAG_TOP_DIR) |
| 366 | rprintf(FINFO, "deleting in %s\n", fbuf); |
| 367 | |
| 368 | if (link_stat(fbuf, &st, keep_dirlinks) < 0 |
| 369 | || !S_ISDIR(st.st_mode)) |
| 370 | continue; |
| 371 | |
| 372 | delete_in_dir(fbuf, file, &st.st_dev); |
| 373 | } |
| 374 | delete_in_dir(NULL, NULL, &dev_zero); |
| 375 | |
| 376 | if (INFO_GTE(FLIST, 2) && !am_server) |
| 377 | rprintf(FINFO, " \r"); |
| 378 | } |
| 379 | |
| 380 | static inline int time_differs(struct file_struct *file, stat_x *sxp) |
| 381 | { |
| 382 | return cmp_time(sxp->st.st_mtime, file->modtime); |
| 383 | } |
| 384 | |
| 385 | static inline int perms_differ(struct file_struct *file, stat_x *sxp) |
| 386 | { |
| 387 | if (preserve_perms) |
| 388 | return !BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS); |
| 389 | |
| 390 | if (preserve_executability) |
| 391 | return (sxp->st.st_mode & 0111 ? 1 : 0) ^ (file->mode & 0111 ? 1 : 0); |
| 392 | |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | static inline int ownership_differs(struct file_struct *file, stat_x *sxp) |
| 397 | { |
| 398 | if (am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file)) |
| 399 | return 1; |
| 400 | |
| 401 | if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP) && sxp->st.st_gid != (gid_t)F_GROUP(file)) |
| 402 | return 1; |
| 403 | |
| 404 | return 0; |
| 405 | } |
| 406 | |
| 407 | #ifdef SUPPORT_ACLS |
| 408 | static inline int acls_differ(const char *fname, struct file_struct *file, stat_x *sxp) |
| 409 | { |
| 410 | if (preserve_acls) { |
| 411 | if (!ACL_READY(*sxp)) |
| 412 | get_acl(fname, sxp); |
| 413 | if (set_acl(NULL, file, sxp, file->mode)) |
| 414 | return 1; |
| 415 | } |
| 416 | |
| 417 | return 0; |
| 418 | } |
| 419 | #endif |
| 420 | |
| 421 | #ifdef SUPPORT_XATTRS |
| 422 | static inline int xattrs_differ(const char *fname, struct file_struct *file, stat_x *sxp) |
| 423 | { |
| 424 | if (preserve_xattrs) { |
| 425 | if (!XATTR_READY(*sxp)) |
| 426 | get_xattr(fname, sxp); |
| 427 | if (xattr_diff(file, sxp, 0)) |
| 428 | return 1; |
| 429 | } |
| 430 | |
| 431 | return 0; |
| 432 | } |
| 433 | #endif |
| 434 | |
| 435 | int unchanged_attrs(const char *fname, struct file_struct *file, stat_x *sxp) |
| 436 | { |
| 437 | if (S_ISLNK(file->mode)) { |
| 438 | #ifdef CAN_SET_SYMLINK_TIMES |
| 439 | if (preserve_times & PRESERVE_LINK_TIMES && time_differs(file, sxp)) |
| 440 | return 0; |
| 441 | #endif |
| 442 | #ifdef CAN_CHMOD_SYMLINK |
| 443 | if (perms_differ(file, sxp)) |
| 444 | return 0; |
| 445 | #endif |
| 446 | #ifndef CAN_CHOWN_SYMLINK |
| 447 | if (ownership_differs(file, sxp)) |
| 448 | return 0; |
| 449 | #endif |
| 450 | #if defined SUPPORT_ACLS && 0 /* no current symlink-ACL support */ |
| 451 | if (acls_differ(fname, file, sxp)) |
| 452 | return 0; |
| 453 | #endif |
| 454 | #if defined SUPPORT_XATTRS && !defined NO_SYMLINK_XATTRS |
| 455 | if (xattrs_differ(fname, file, sxp)) |
| 456 | return 0; |
| 457 | #endif |
| 458 | } else { |
| 459 | if (preserve_times && time_differs(file, sxp)) |
| 460 | return 0; |
| 461 | if (perms_differ(file, sxp)) |
| 462 | return 0; |
| 463 | if (ownership_differs(file, sxp)) |
| 464 | return 0; |
| 465 | #ifdef SUPPORT_ACLS |
| 466 | if (acls_differ(fname, file, sxp)) |
| 467 | return 0; |
| 468 | #endif |
| 469 | #ifdef SUPPORT_XATTRS |
| 470 | if (xattrs_differ(fname, file, sxp)) |
| 471 | return 0; |
| 472 | #endif |
| 473 | } |
| 474 | |
| 475 | return 1; |
| 476 | } |
| 477 | |
| 478 | void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statret, |
| 479 | stat_x *sxp, int32 iflags, uchar fnamecmp_type, |
| 480 | const char *xname) |
| 481 | { |
| 482 | if (statret >= 0) { /* A from-dest-dir statret can == 1! */ |
| 483 | int keep_time = !preserve_times ? 0 |
| 484 | : S_ISDIR(file->mode) ? preserve_times & PRESERVE_DIR_TIMES |
| 485 | : S_ISLNK(file->mode) ? preserve_times & PRESERVE_LINK_TIMES |
| 486 | : 1; |
| 487 | |
| 488 | if (S_ISREG(file->mode) && F_LENGTH(file) != sxp->st.st_size) |
| 489 | iflags |= ITEM_REPORT_SIZE; |
| 490 | if (file->flags & FLAG_TIME_FAILED) { /* symlinks only */ |
| 491 | if (iflags & ITEM_LOCAL_CHANGE) |
| 492 | iflags |= symlink_timeset_failed_flags; |
| 493 | } else if (keep_time |
| 494 | ? cmp_time(file->modtime, sxp->st.st_mtime) != 0 |
| 495 | : iflags & (ITEM_TRANSFER|ITEM_LOCAL_CHANGE) && !(iflags & ITEM_MATCHED) |
| 496 | && (!(iflags & ITEM_XNAME_FOLLOWS) || *xname)) |
| 497 | iflags |= ITEM_REPORT_TIME; |
| 498 | #if !defined HAVE_LCHMOD && !defined HAVE_SETATTRLIST |
| 499 | if (S_ISLNK(file->mode)) { |
| 500 | ; |
| 501 | } else |
| 502 | #endif |
| 503 | if (preserve_perms) { |
| 504 | if (!BITS_EQUAL(sxp->st.st_mode, file->mode, CHMOD_BITS)) |
| 505 | iflags |= ITEM_REPORT_PERMS; |
| 506 | } else if (preserve_executability |
| 507 | && ((sxp->st.st_mode & 0111 ? 1 : 0) ^ (file->mode & 0111 ? 1 : 0))) |
| 508 | iflags |= ITEM_REPORT_PERMS; |
| 509 | if (uid_ndx && am_root && (uid_t)F_OWNER(file) != sxp->st.st_uid) |
| 510 | iflags |= ITEM_REPORT_OWNER; |
| 511 | if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP) |
| 512 | && sxp->st.st_gid != (gid_t)F_GROUP(file)) |
| 513 | iflags |= ITEM_REPORT_GROUP; |
| 514 | #ifdef SUPPORT_ACLS |
| 515 | if (preserve_acls && !S_ISLNK(file->mode)) { |
| 516 | if (!ACL_READY(*sxp)) |
| 517 | get_acl(fnamecmp, sxp); |
| 518 | if (set_acl(NULL, file, sxp, file->mode)) |
| 519 | iflags |= ITEM_REPORT_ACL; |
| 520 | } |
| 521 | #endif |
| 522 | #ifdef SUPPORT_XATTRS |
| 523 | if (preserve_xattrs) { |
| 524 | if (!XATTR_READY(*sxp)) |
| 525 | get_xattr(fnamecmp, sxp); |
| 526 | if (xattr_diff(file, sxp, 1)) |
| 527 | iflags |= ITEM_REPORT_XATTR; |
| 528 | } |
| 529 | #endif |
| 530 | } else { |
| 531 | #ifdef SUPPORT_XATTRS |
| 532 | if (preserve_xattrs && xattr_diff(file, NULL, 1)) |
| 533 | iflags |= ITEM_REPORT_XATTR; |
| 534 | #endif |
| 535 | iflags |= ITEM_IS_NEW; |
| 536 | } |
| 537 | |
| 538 | iflags &= 0xffff; |
| 539 | if ((iflags & (SIGNIFICANT_ITEM_FLAGS|ITEM_REPORT_XATTR) || INFO_GTE(NAME, 2) |
| 540 | || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) { |
| 541 | if (protocol_version >= 29) { |
| 542 | if (ndx >= 0) |
| 543 | write_ndx(sock_f_out, ndx); |
| 544 | write_shortint(sock_f_out, iflags); |
| 545 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) |
| 546 | write_byte(sock_f_out, fnamecmp_type); |
| 547 | if (iflags & ITEM_XNAME_FOLLOWS) |
| 548 | write_vstring(sock_f_out, xname, strlen(xname)); |
| 549 | #ifdef SUPPORT_XATTRS |
| 550 | if (preserve_xattrs && do_xfers |
| 551 | && iflags & (ITEM_REPORT_XATTR|ITEM_TRANSFER)) { |
| 552 | send_xattr_request(NULL, file, |
| 553 | iflags & ITEM_REPORT_XATTR ? sock_f_out : -1); |
| 554 | } |
| 555 | #endif |
| 556 | } else if (ndx >= 0) { |
| 557 | enum logcode code = logfile_format_has_i ? FINFO : FCLIENT; |
| 558 | log_item(code, file, iflags, xname); |
| 559 | } |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | |
| 564 | /* Perform our quick-check heuristic for determining if a file is unchanged. */ |
| 565 | int unchanged_file(char *fn, struct file_struct *file, STRUCT_STAT *st) |
| 566 | { |
| 567 | if (st->st_size != F_LENGTH(file)) |
| 568 | return 0; |
| 569 | |
| 570 | /* if always checksum is set then we use the checksum instead |
| 571 | of the file time to determine whether to sync */ |
| 572 | if (always_checksum > 0 && S_ISREG(st->st_mode)) { |
| 573 | char sum[MAX_DIGEST_LEN]; |
| 574 | file_checksum(fn, sum, st->st_size); |
| 575 | return memcmp(sum, F_SUM(file), checksum_len) == 0; |
| 576 | } |
| 577 | |
| 578 | if (size_only > 0) |
| 579 | return 1; |
| 580 | |
| 581 | if (ignore_times) |
| 582 | return 0; |
| 583 | |
| 584 | return cmp_time(st->st_mtime, file->modtime) == 0; |
| 585 | } |
| 586 | |
| 587 | |
| 588 | /* |
| 589 | * set (initialize) the size entries in the per-file sum_struct |
| 590 | * calculating dynamic block and checksum sizes. |
| 591 | * |
| 592 | * This is only called from generate_and_send_sums() but is a separate |
| 593 | * function to encapsulate the logic. |
| 594 | * |
| 595 | * The block size is a rounded square root of file length. |
| 596 | * |
| 597 | * The checksum size is determined according to: |
| 598 | * blocksum_bits = BLOCKSUM_BIAS + 2*log2(file_len) - log2(block_len) |
| 599 | * provided by Donovan Baarda which gives a probability of rsync |
| 600 | * algorithm corrupting data and falling back using the whole md4 |
| 601 | * checksums. |
| 602 | * |
| 603 | * This might be made one of several selectable heuristics. |
| 604 | */ |
| 605 | static void sum_sizes_sqroot(struct sum_struct *sum, int64 len) |
| 606 | { |
| 607 | int32 blength; |
| 608 | int s2length; |
| 609 | int64 l; |
| 610 | |
| 611 | if (len < 0) { |
| 612 | /* The file length overflowed our int64 var, so we can't process this file. */ |
| 613 | sum->count = -1; /* indicate overflow error */ |
| 614 | return; |
| 615 | } |
| 616 | |
| 617 | if (block_size) |
| 618 | blength = block_size; |
| 619 | else if (len <= BLOCK_SIZE * BLOCK_SIZE) |
| 620 | blength = BLOCK_SIZE; |
| 621 | else { |
| 622 | int32 max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE; |
| 623 | int32 c; |
| 624 | int cnt; |
| 625 | for (c = 1, l = len, cnt = 0; l >>= 2; c <<= 1, cnt++) {} |
| 626 | if (c < 0 || c >= max_blength) |
| 627 | blength = max_blength; |
| 628 | else { |
| 629 | blength = 0; |
| 630 | do { |
| 631 | blength |= c; |
| 632 | if (len < (int64)blength * blength) |
| 633 | blength &= ~c; |
| 634 | c >>= 1; |
| 635 | } while (c >= 8); /* round to multiple of 8 */ |
| 636 | blength = MAX(blength, BLOCK_SIZE); |
| 637 | } |
| 638 | } |
| 639 | |
| 640 | if (protocol_version < 27) { |
| 641 | s2length = csum_length; |
| 642 | } else if (csum_length == SUM_LENGTH) { |
| 643 | s2length = SUM_LENGTH; |
| 644 | } else { |
| 645 | int32 c; |
| 646 | int b = BLOCKSUM_BIAS; |
| 647 | for (l = len; l >>= 1; b += 2) {} |
| 648 | for (c = blength; (c >>= 1) && b; b--) {} |
| 649 | /* add a bit, subtract rollsum, round up. */ |
| 650 | s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */ |
| 651 | s2length = MAX(s2length, csum_length); |
| 652 | s2length = MIN(s2length, SUM_LENGTH); |
| 653 | } |
| 654 | |
| 655 | sum->flength = len; |
| 656 | sum->blength = blength; |
| 657 | sum->s2length = s2length; |
| 658 | sum->remainder = (int32)(len % blength); |
| 659 | sum->count = (int32)(l = (len / blength) + (sum->remainder != 0)); |
| 660 | |
| 661 | if ((int64)sum->count != l) |
| 662 | sum->count = -1; |
| 663 | |
| 664 | if (sum->count && DEBUG_GTE(DELTASUM, 2)) { |
| 665 | rprintf(FINFO, |
| 666 | "count=%s rem=%ld blength=%ld s2length=%d flength=%s\n", |
| 667 | big_num(sum->count), (long)sum->remainder, (long)sum->blength, |
| 668 | sum->s2length, big_num(sum->flength)); |
| 669 | } |
| 670 | } |
| 671 | |
| 672 | |
| 673 | /* |
| 674 | * Generate and send a stream of signatures/checksums that describe a buffer |
| 675 | * |
| 676 | * Generate approximately one checksum every block_len bytes. |
| 677 | */ |
| 678 | static int generate_and_send_sums(int fd, OFF_T len, int f_out, int f_copy) |
| 679 | { |
| 680 | int32 i; |
| 681 | struct map_struct *mapbuf; |
| 682 | struct sum_struct sum; |
| 683 | OFF_T offset = 0; |
| 684 | |
| 685 | sum_sizes_sqroot(&sum, len); |
| 686 | if (sum.count < 0) |
| 687 | return -1; |
| 688 | write_sum_head(f_out, &sum); |
| 689 | |
| 690 | if (append_mode > 0 && f_copy < 0) |
| 691 | return 0; |
| 692 | |
| 693 | if (len > 0) |
| 694 | mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength); |
| 695 | else |
| 696 | mapbuf = NULL; |
| 697 | |
| 698 | for (i = 0; i < sum.count; i++) { |
| 699 | int32 n1 = (int32)MIN(len, (OFF_T)sum.blength); |
| 700 | char *map = map_ptr(mapbuf, offset, n1); |
| 701 | char sum2[SUM_LENGTH]; |
| 702 | uint32 sum1; |
| 703 | |
| 704 | len -= n1; |
| 705 | offset += n1; |
| 706 | |
| 707 | if (f_copy >= 0) { |
| 708 | full_write(f_copy, map, n1); |
| 709 | if (append_mode > 0) |
| 710 | continue; |
| 711 | } |
| 712 | |
| 713 | sum1 = get_checksum1(map, n1); |
| 714 | get_checksum2(map, n1, sum2); |
| 715 | |
| 716 | if (DEBUG_GTE(DELTASUM, 3)) { |
| 717 | rprintf(FINFO, |
| 718 | "chunk[%s] offset=%s len=%ld sum1=%08lx\n", |
| 719 | big_num(i), big_num(offset - n1), (long)n1, |
| 720 | (unsigned long)sum1); |
| 721 | } |
| 722 | write_int(f_out, sum1); |
| 723 | write_buf(f_out, sum2, sum.s2length); |
| 724 | } |
| 725 | |
| 726 | if (mapbuf) |
| 727 | unmap_file(mapbuf); |
| 728 | |
| 729 | return 0; |
| 730 | } |
| 731 | |
| 732 | |
| 733 | /* Try to find a filename in the same dir as "fname" with a similar name. */ |
| 734 | static int find_fuzzy(struct file_struct *file, struct file_list *dirlist) |
| 735 | { |
| 736 | int fname_len, fname_suf_len; |
| 737 | const char *fname_suf, *fname = file->basename; |
| 738 | uint32 lowest_dist = 25 << 16; /* ignore a distance greater than 25 */ |
| 739 | int j, lowest_j = -1; |
| 740 | |
| 741 | fname_len = strlen(fname); |
| 742 | fname_suf = find_filename_suffix(fname, fname_len, &fname_suf_len); |
| 743 | |
| 744 | for (j = 0; j < dirlist->used; j++) { |
| 745 | struct file_struct *fp = dirlist->files[j]; |
| 746 | const char *suf, *name; |
| 747 | int len, suf_len; |
| 748 | uint32 dist; |
| 749 | |
| 750 | if (!S_ISREG(fp->mode) || !F_LENGTH(fp) |
| 751 | || fp->flags & FLAG_FILE_SENT) |
| 752 | continue; |
| 753 | |
| 754 | name = fp->basename; |
| 755 | |
| 756 | if (F_LENGTH(fp) == F_LENGTH(file) |
| 757 | && cmp_time(fp->modtime, file->modtime) == 0) { |
| 758 | if (DEBUG_GTE(FUZZY, 2)) { |
| 759 | rprintf(FINFO, |
| 760 | "fuzzy size/modtime match for %s\n", |
| 761 | name); |
| 762 | } |
| 763 | return j; |
| 764 | } |
| 765 | |
| 766 | len = strlen(name); |
| 767 | suf = find_filename_suffix(name, len, &suf_len); |
| 768 | |
| 769 | dist = fuzzy_distance(name, len, fname, fname_len); |
| 770 | /* Add some extra weight to how well the suffixes match. */ |
| 771 | dist += fuzzy_distance(suf, suf_len, fname_suf, fname_suf_len) |
| 772 | * 10; |
| 773 | if (DEBUG_GTE(FUZZY, 2)) { |
| 774 | rprintf(FINFO, "fuzzy distance for %s = %d.%05d\n", |
| 775 | name, (int)(dist>>16), (int)(dist&0xFFFF)); |
| 776 | } |
| 777 | if (dist <= lowest_dist) { |
| 778 | lowest_dist = dist; |
| 779 | lowest_j = j; |
| 780 | } |
| 781 | } |
| 782 | |
| 783 | return lowest_j; |
| 784 | } |
| 785 | |
| 786 | /* Copy a file found in our --copy-dest handling. */ |
| 787 | static int copy_altdest_file(const char *src, const char *dest, struct file_struct *file) |
| 788 | { |
| 789 | char buf[MAXPATHLEN]; |
| 790 | const char *copy_to, *partialptr; |
| 791 | int save_preserve_xattrs = preserve_xattrs; |
| 792 | int ok, fd_w; |
| 793 | |
| 794 | if (inplace) { |
| 795 | /* Let copy_file open the destination in place. */ |
| 796 | fd_w = -1; |
| 797 | copy_to = dest; |
| 798 | } else { |
| 799 | fd_w = open_tmpfile(buf, dest, file); |
| 800 | if (fd_w < 0) |
| 801 | return -1; |
| 802 | copy_to = buf; |
| 803 | } |
| 804 | cleanup_set(copy_to, NULL, NULL, -1, -1); |
| 805 | if (copy_file(src, copy_to, fd_w, file->mode) < 0) { |
| 806 | if (INFO_GTE(COPY, 1)) { |
| 807 | rsyserr(FINFO, errno, "copy_file %s => %s", |
| 808 | full_fname(src), copy_to); |
| 809 | } |
| 810 | /* Try to clean up. */ |
| 811 | unlink(copy_to); |
| 812 | cleanup_disable(); |
| 813 | return -1; |
| 814 | } |
| 815 | partialptr = partial_dir ? partial_dir_fname(dest) : NULL; |
| 816 | preserve_xattrs = 0; /* xattrs were copied with file */ |
| 817 | ok = finish_transfer(dest, copy_to, src, partialptr, file, 1, 0); |
| 818 | preserve_xattrs = save_preserve_xattrs; |
| 819 | cleanup_disable(); |
| 820 | return ok ? 0 : -1; |
| 821 | } |
| 822 | |
| 823 | /* This is only called for regular files. We return -2 if we've finished |
| 824 | * handling the file, -1 if no dest-linking occurred, or a non-negative |
| 825 | * value if we found an alternate basis file. */ |
| 826 | static int try_dests_reg(struct file_struct *file, char *fname, int ndx, |
| 827 | char *cmpbuf, stat_x *sxp, int itemizing, |
| 828 | enum logcode code) |
| 829 | { |
| 830 | int best_match = -1; |
| 831 | int match_level = 0; |
| 832 | int j = 0; |
| 833 | |
| 834 | do { |
| 835 | pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname); |
| 836 | if (link_stat(cmpbuf, &sxp->st, 0) < 0 || !S_ISREG(sxp->st.st_mode)) |
| 837 | continue; |
| 838 | switch (match_level) { |
| 839 | case 0: |
| 840 | best_match = j; |
| 841 | match_level = 1; |
| 842 | /* FALL THROUGH */ |
| 843 | case 1: |
| 844 | if (!unchanged_file(cmpbuf, file, &sxp->st)) |
| 845 | continue; |
| 846 | best_match = j; |
| 847 | match_level = 2; |
| 848 | /* FALL THROUGH */ |
| 849 | case 2: |
| 850 | if (!unchanged_attrs(cmpbuf, file, sxp)) |
| 851 | continue; |
| 852 | best_match = j; |
| 853 | match_level = 3; |
| 854 | break; |
| 855 | } |
| 856 | break; |
| 857 | } while (basis_dir[++j] != NULL); |
| 858 | |
| 859 | if (!match_level) |
| 860 | return -1; |
| 861 | |
| 862 | if (j != best_match) { |
| 863 | j = best_match; |
| 864 | pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname); |
| 865 | if (link_stat(cmpbuf, &sxp->st, 0) < 0) |
| 866 | return -1; |
| 867 | } |
| 868 | |
| 869 | if (match_level == 3 && !copy_dest) { |
| 870 | #ifdef SUPPORT_HARD_LINKS |
| 871 | if (link_dest) { |
| 872 | if (!hard_link_one(file, fname, cmpbuf, 1)) |
| 873 | goto try_a_copy; |
| 874 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 875 | finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, j); |
| 876 | if (!maybe_ATTRS_REPORT && (INFO_GTE(NAME, 2) || stdout_format_has_i > 1)) { |
| 877 | itemize(cmpbuf, file, ndx, 1, sxp, |
| 878 | ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS, |
| 879 | 0, ""); |
| 880 | } |
| 881 | } else |
| 882 | #endif |
| 883 | if (itemizing) |
| 884 | itemize(cmpbuf, file, ndx, 0, sxp, 0, 0, NULL); |
| 885 | if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT) |
| 886 | rprintf(FCLIENT, "%s is uptodate\n", fname); |
| 887 | return -2; |
| 888 | } |
| 889 | |
| 890 | if (match_level >= 2) { |
| 891 | #ifdef SUPPORT_HARD_LINKS |
| 892 | try_a_copy: /* Copy the file locally. */ |
| 893 | #endif |
| 894 | if (!dry_run && copy_altdest_file(cmpbuf, fname, file) < 0) |
| 895 | return -1; |
| 896 | if (itemizing) |
| 897 | itemize(cmpbuf, file, ndx, 0, sxp, ITEM_LOCAL_CHANGE, 0, NULL); |
| 898 | if (maybe_ATTRS_REPORT |
| 899 | && ((!itemizing && INFO_GTE(NAME, 1) && match_level == 2) |
| 900 | || (INFO_GTE(NAME, 2) && match_level == 3))) { |
| 901 | code = match_level == 3 ? FCLIENT : FINFO; |
| 902 | rprintf(code, "%s%s\n", fname, |
| 903 | match_level == 3 ? " is uptodate" : ""); |
| 904 | } |
| 905 | #ifdef SUPPORT_HARD_LINKS |
| 906 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 907 | finish_hard_link(file, fname, ndx, &sxp->st, itemizing, code, -1); |
| 908 | #endif |
| 909 | return -2; |
| 910 | } |
| 911 | |
| 912 | return FNAMECMP_BASIS_DIR_LOW + j; |
| 913 | } |
| 914 | |
| 915 | /* This is only called for non-regular files. We return -2 if we've finished |
| 916 | * handling the file, or -1 if no dest-linking occurred, or a non-negative |
| 917 | * value if we found an alternate basis file. */ |
| 918 | static int try_dests_non(struct file_struct *file, char *fname, int ndx, |
| 919 | char *cmpbuf, stat_x *sxp, int itemizing, |
| 920 | enum logcode code) |
| 921 | { |
| 922 | int best_match = -1; |
| 923 | int match_level = 0; |
| 924 | enum nonregtype type; |
| 925 | uint32 *devp; |
| 926 | #ifdef SUPPORT_LINKS |
| 927 | char lnk[MAXPATHLEN]; |
| 928 | int len; |
| 929 | #endif |
| 930 | int j = 0; |
| 931 | |
| 932 | #ifndef SUPPORT_LINKS |
| 933 | if (S_ISLNK(file->mode)) |
| 934 | return -1; |
| 935 | #endif |
| 936 | if (S_ISDIR(file->mode)) { |
| 937 | type = TYPE_DIR; |
| 938 | } else if (IS_SPECIAL(file->mode)) |
| 939 | type = TYPE_SPECIAL; |
| 940 | else if (IS_DEVICE(file->mode)) |
| 941 | type = TYPE_DEVICE; |
| 942 | #ifdef SUPPORT_LINKS |
| 943 | else if (S_ISLNK(file->mode)) |
| 944 | type = TYPE_SYMLINK; |
| 945 | #endif |
| 946 | else { |
| 947 | rprintf(FERROR, |
| 948 | "internal: try_dests_non() called with invalid mode (%o)\n", |
| 949 | (int)file->mode); |
| 950 | exit_cleanup(RERR_UNSUPPORTED); |
| 951 | } |
| 952 | |
| 953 | do { |
| 954 | pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname); |
| 955 | if (link_stat(cmpbuf, &sxp->st, 0) < 0) |
| 956 | continue; |
| 957 | switch (type) { |
| 958 | case TYPE_DIR: |
| 959 | if (!S_ISDIR(sxp->st.st_mode)) |
| 960 | continue; |
| 961 | break; |
| 962 | case TYPE_SPECIAL: |
| 963 | if (!IS_SPECIAL(sxp->st.st_mode)) |
| 964 | continue; |
| 965 | break; |
| 966 | case TYPE_DEVICE: |
| 967 | if (!IS_DEVICE(sxp->st.st_mode)) |
| 968 | continue; |
| 969 | break; |
| 970 | case TYPE_SYMLINK: |
| 971 | #ifdef SUPPORT_LINKS |
| 972 | if (!S_ISLNK(sxp->st.st_mode)) |
| 973 | continue; |
| 974 | break; |
| 975 | #else |
| 976 | return -1; |
| 977 | #endif |
| 978 | } |
| 979 | if (match_level < 1) { |
| 980 | match_level = 1; |
| 981 | best_match = j; |
| 982 | } |
| 983 | switch (type) { |
| 984 | case TYPE_DIR: |
| 985 | case TYPE_SPECIAL: |
| 986 | break; |
| 987 | case TYPE_DEVICE: |
| 988 | devp = F_RDEV_P(file); |
| 989 | if (sxp->st.st_rdev != MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp))) |
| 990 | continue; |
| 991 | break; |
| 992 | case TYPE_SYMLINK: |
| 993 | #ifdef SUPPORT_LINKS |
| 994 | if ((len = do_readlink(cmpbuf, lnk, MAXPATHLEN-1)) <= 0) |
| 995 | continue; |
| 996 | lnk[len] = '\0'; |
| 997 | if (strcmp(lnk, F_SYMLINK(file)) != 0) |
| 998 | continue; |
| 999 | break; |
| 1000 | #else |
| 1001 | return -1; |
| 1002 | #endif |
| 1003 | } |
| 1004 | if (match_level < 2) { |
| 1005 | match_level = 2; |
| 1006 | best_match = j; |
| 1007 | } |
| 1008 | if (unchanged_attrs(cmpbuf, file, sxp)) { |
| 1009 | match_level = 3; |
| 1010 | best_match = j; |
| 1011 | break; |
| 1012 | } |
| 1013 | } while (basis_dir[++j] != NULL); |
| 1014 | |
| 1015 | if (!match_level) |
| 1016 | return -1; |
| 1017 | |
| 1018 | if (j != best_match) { |
| 1019 | j = best_match; |
| 1020 | pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname); |
| 1021 | if (link_stat(cmpbuf, &sxp->st, 0) < 0) |
| 1022 | return -1; |
| 1023 | } |
| 1024 | |
| 1025 | if (match_level == 3) { |
| 1026 | #ifdef SUPPORT_HARD_LINKS |
| 1027 | if (link_dest |
| 1028 | #ifndef CAN_HARDLINK_SYMLINK |
| 1029 | && !S_ISLNK(file->mode) |
| 1030 | #endif |
| 1031 | #ifndef CAN_HARDLINK_SPECIAL |
| 1032 | && !IS_SPECIAL(file->mode) && !IS_DEVICE(file->mode) |
| 1033 | #endif |
| 1034 | && !S_ISDIR(file->mode)) { |
| 1035 | if (do_link(cmpbuf, fname) < 0) { |
| 1036 | rsyserr(FERROR_XFER, errno, |
| 1037 | "failed to hard-link %s with %s", |
| 1038 | cmpbuf, fname); |
| 1039 | return j; |
| 1040 | } |
| 1041 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1042 | finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1); |
| 1043 | } else |
| 1044 | #endif |
| 1045 | match_level = 2; |
| 1046 | if (itemizing && stdout_format_has_i |
| 1047 | && (INFO_GTE(NAME, 2) || stdout_format_has_i > 1)) { |
| 1048 | int chg = compare_dest && type != TYPE_DIR ? 0 |
| 1049 | : ITEM_LOCAL_CHANGE + (match_level == 3 ? ITEM_XNAME_FOLLOWS : 0); |
| 1050 | char *lp = match_level == 3 ? "" : NULL; |
| 1051 | itemize(cmpbuf, file, ndx, 0, sxp, chg + ITEM_MATCHED, 0, lp); |
| 1052 | } |
| 1053 | if (INFO_GTE(NAME, 2) && maybe_ATTRS_REPORT) { |
| 1054 | rprintf(FCLIENT, "%s%s is uptodate\n", |
| 1055 | fname, type == TYPE_DIR ? "/" : ""); |
| 1056 | } |
| 1057 | return -2; |
| 1058 | } |
| 1059 | |
| 1060 | return j; |
| 1061 | } |
| 1062 | |
| 1063 | static void list_file_entry(struct file_struct *f) |
| 1064 | { |
| 1065 | char permbuf[PERMSTRING_SIZE]; |
| 1066 | int64 len; |
| 1067 | int colwidth = human_readable ? 14 : 11; |
| 1068 | |
| 1069 | if (!F_IS_ACTIVE(f)) { |
| 1070 | /* this can happen if duplicate names were removed */ |
| 1071 | return; |
| 1072 | } |
| 1073 | |
| 1074 | permstring(permbuf, f->mode); |
| 1075 | len = F_LENGTH(f); |
| 1076 | |
| 1077 | /* TODO: indicate '+' if the entry has an ACL. */ |
| 1078 | |
| 1079 | #ifdef SUPPORT_LINKS |
| 1080 | if (preserve_links && S_ISLNK(f->mode)) { |
| 1081 | rprintf(FINFO, "%s %*s %s %s -> %s\n", |
| 1082 | permbuf, colwidth, human_num(len), |
| 1083 | timestring(f->modtime), f_name(f, NULL), |
| 1084 | F_SYMLINK(f)); |
| 1085 | } else |
| 1086 | #endif |
| 1087 | if (missing_args == 2 && f->mode == 0) { |
| 1088 | rprintf(FINFO, "%-*s %s\n", |
| 1089 | colwidth + 31, "*missing", |
| 1090 | f_name(f, NULL)); |
| 1091 | } else { |
| 1092 | rprintf(FINFO, "%s %*s %s %s\n", |
| 1093 | permbuf, colwidth, human_num(len), |
| 1094 | timestring(f->modtime), f_name(f, NULL)); |
| 1095 | } |
| 1096 | } |
| 1097 | |
| 1098 | static int phase = 0; |
| 1099 | static int dflt_perms; |
| 1100 | |
| 1101 | static int implied_dirs_are_missing; |
| 1102 | /* Helper for recv_generator's skip_dir and dry_missing_dir tests. */ |
| 1103 | static BOOL is_below(struct file_struct *file, struct file_struct *subtree) |
| 1104 | { |
| 1105 | return F_DEPTH(file) > F_DEPTH(subtree) |
| 1106 | && (!implied_dirs_are_missing || f_name_has_prefix(file, subtree)); |
| 1107 | } |
| 1108 | |
| 1109 | /* Acts on the indicated item in cur_flist whose name is fname. If a dir, |
| 1110 | * make sure it exists, and has the right permissions/timestamp info. For |
| 1111 | * all other non-regular files (symlinks, etc.) we create them here. For |
| 1112 | * regular files that have changed, we try to find a basis file and then |
| 1113 | * start sending checksums. The ndx is the file's unique index value. |
| 1114 | * |
| 1115 | * The fname parameter must point to a MAXPATHLEN buffer! (e.g it gets |
| 1116 | * passed to delete_item(), which can use it during a recursive delete.) |
| 1117 | * |
| 1118 | * Note that f_out is set to -1 when doing final directory-permission and |
| 1119 | * modification-time repair. */ |
| 1120 | static void recv_generator(char *fname, struct file_struct *file, int ndx, |
| 1121 | int itemizing, enum logcode code, int f_out) |
| 1122 | { |
| 1123 | static const char *parent_dirname = ""; |
| 1124 | /* Missing dir not created due to --dry-run; will still be scanned. */ |
| 1125 | static struct file_struct *dry_missing_dir = NULL; |
| 1126 | /* Missing dir whose contents are skipped altogether due to |
| 1127 | * --ignore-non-existing, daemon exclude, or mkdir failure. */ |
| 1128 | static struct file_struct *skip_dir = NULL; |
| 1129 | static struct file_list *fuzzy_dirlist = NULL; |
| 1130 | static int need_fuzzy_dirlist = 0; |
| 1131 | struct file_struct *fuzzy_file = NULL; |
| 1132 | int fd = -1, f_copy = -1; |
| 1133 | stat_x sx, real_sx; |
| 1134 | STRUCT_STAT partial_st; |
| 1135 | struct file_struct *back_file = NULL; |
| 1136 | int statret, real_ret, stat_errno; |
| 1137 | char *fnamecmp, *partialptr, *backupptr = NULL; |
| 1138 | char fnamecmpbuf[MAXPATHLEN]; |
| 1139 | uchar fnamecmp_type; |
| 1140 | int del_opts = delete_mode || force_delete ? DEL_RECURSE : 0; |
| 1141 | int is_dir = !S_ISDIR(file->mode) ? 0 |
| 1142 | : inc_recurse && ndx != cur_flist->ndx_start - 1 ? -1 |
| 1143 | : 1; |
| 1144 | |
| 1145 | if (DEBUG_GTE(GENR, 1)) |
| 1146 | rprintf(FINFO, "recv_generator(%s,%d)\n", fname, ndx); |
| 1147 | |
| 1148 | if (list_only) { |
| 1149 | if (is_dir < 0 |
| 1150 | || (is_dir && !implied_dirs && file->flags & FLAG_IMPLIED_DIR)) |
| 1151 | return; |
| 1152 | list_file_entry(file); |
| 1153 | return; |
| 1154 | } |
| 1155 | |
| 1156 | if (skip_dir) { |
| 1157 | if (is_below(file, skip_dir)) { |
| 1158 | if (is_dir) |
| 1159 | file->flags |= FLAG_MISSING_DIR; |
| 1160 | #ifdef SUPPORT_HARD_LINKS |
| 1161 | else if (F_IS_HLINKED(file)) |
| 1162 | handle_skipped_hlink(file, itemizing, code, f_out); |
| 1163 | #endif |
| 1164 | return; |
| 1165 | } |
| 1166 | skip_dir = NULL; |
| 1167 | } |
| 1168 | |
| 1169 | init_stat_x(&sx); |
| 1170 | if (daemon_filter_list.head && (*fname != '.' || fname[1])) { |
| 1171 | if (check_filter(&daemon_filter_list, FLOG, fname, is_dir) < 0) { |
| 1172 | if (is_dir < 0) |
| 1173 | return; |
| 1174 | #ifdef SUPPORT_HARD_LINKS |
| 1175 | if (F_IS_HLINKED(file)) |
| 1176 | handle_skipped_hlink(file, itemizing, code, f_out); |
| 1177 | #endif |
| 1178 | rprintf(FERROR_XFER, |
| 1179 | "skipping daemon-excluded %s \"%s\"\n", |
| 1180 | is_dir ? "directory" : "file", fname); |
| 1181 | if (is_dir) |
| 1182 | goto skipping_dir_contents; |
| 1183 | return; |
| 1184 | } |
| 1185 | } |
| 1186 | |
| 1187 | if (dry_run > 1 || (dry_missing_dir && is_below(file, dry_missing_dir))) { |
| 1188 | parent_is_dry_missing: |
| 1189 | if (fuzzy_dirlist) { |
| 1190 | flist_free(fuzzy_dirlist); |
| 1191 | fuzzy_dirlist = NULL; |
| 1192 | } |
| 1193 | parent_dirname = ""; |
| 1194 | statret = -1; |
| 1195 | stat_errno = ENOENT; |
| 1196 | } else { |
| 1197 | const char *dn = file->dirname ? file->dirname : "."; |
| 1198 | dry_missing_dir = NULL; |
| 1199 | if (parent_dirname != dn && strcmp(parent_dirname, dn) != 0) { |
| 1200 | if (relative_paths && !implied_dirs |
| 1201 | && do_stat(dn, &sx.st) < 0) { |
| 1202 | if (dry_run) |
| 1203 | goto parent_is_dry_missing; |
| 1204 | if (make_path(fname, MKP_DROP_NAME | MKP_SKIP_SLASH) < 0) { |
| 1205 | rsyserr(FERROR_XFER, errno, |
| 1206 | "recv_generator: mkdir %s failed", |
| 1207 | full_fname(dn)); |
| 1208 | } |
| 1209 | } |
| 1210 | if (fuzzy_dirlist) { |
| 1211 | flist_free(fuzzy_dirlist); |
| 1212 | fuzzy_dirlist = NULL; |
| 1213 | } |
| 1214 | if (fuzzy_basis) |
| 1215 | need_fuzzy_dirlist = 1; |
| 1216 | #ifdef SUPPORT_ACLS |
| 1217 | if (!preserve_perms) |
| 1218 | dflt_perms = default_perms_for_dir(dn); |
| 1219 | #endif |
| 1220 | } |
| 1221 | parent_dirname = dn; |
| 1222 | |
| 1223 | if (need_fuzzy_dirlist && S_ISREG(file->mode)) { |
| 1224 | strlcpy(fnamecmpbuf, dn, sizeof fnamecmpbuf); |
| 1225 | fuzzy_dirlist = get_dirlist(fnamecmpbuf, -1, GDL_IGNORE_FILTER_RULES); |
| 1226 | need_fuzzy_dirlist = 0; |
| 1227 | } |
| 1228 | |
| 1229 | statret = link_stat(fname, &sx.st, keep_dirlinks && is_dir); |
| 1230 | stat_errno = errno; |
| 1231 | } |
| 1232 | |
| 1233 | if (missing_args == 2 && file->mode == 0) { |
| 1234 | if (filter_list.head && check_filter(&filter_list, FINFO, fname, is_dir) < 0) |
| 1235 | return; |
| 1236 | if (statret == 0) |
| 1237 | delete_item(fname, sx.st.st_mode, del_opts); |
| 1238 | return; |
| 1239 | } |
| 1240 | |
| 1241 | if (ignore_non_existing > 0 && statret == -1 && stat_errno == ENOENT) { |
| 1242 | if (is_dir) { |
| 1243 | if (is_dir < 0) |
| 1244 | return; |
| 1245 | skip_dir = file; |
| 1246 | file->flags |= FLAG_MISSING_DIR; |
| 1247 | } |
| 1248 | #ifdef SUPPORT_HARD_LINKS |
| 1249 | else if (F_IS_HLINKED(file)) |
| 1250 | handle_skipped_hlink(file, itemizing, code, f_out); |
| 1251 | #endif |
| 1252 | if (INFO_GTE(SKIP, 1)) { |
| 1253 | rprintf(FINFO, "not creating new %s \"%s\"\n", |
| 1254 | is_dir ? "directory" : "file", fname); |
| 1255 | } |
| 1256 | return; |
| 1257 | } |
| 1258 | |
| 1259 | if (statret == 0 && !(sx.st.st_mode & S_IWUSR) |
| 1260 | && !am_root && sx.st.st_uid == our_uid) |
| 1261 | del_opts |= DEL_NO_UID_WRITE; |
| 1262 | |
| 1263 | if (ignore_existing > 0 && statret == 0 |
| 1264 | && (!is_dir || !S_ISDIR(sx.st.st_mode))) { |
| 1265 | if (INFO_GTE(SKIP, 1) && is_dir >= 0) |
| 1266 | rprintf(FINFO, "%s exists\n", fname); |
| 1267 | #ifdef SUPPORT_HARD_LINKS |
| 1268 | if (F_IS_HLINKED(file)) |
| 1269 | handle_skipped_hlink(file, itemizing, code, f_out); |
| 1270 | #endif |
| 1271 | goto cleanup; |
| 1272 | } |
| 1273 | |
| 1274 | fnamecmp = fname; |
| 1275 | |
| 1276 | if (is_dir) { |
| 1277 | mode_t added_perms; |
| 1278 | if (!implied_dirs && file->flags & FLAG_IMPLIED_DIR) |
| 1279 | goto cleanup; |
| 1280 | if (am_root < 0) { |
| 1281 | /* For --fake-super, the dir must be useable by the copying |
| 1282 | * user, just like it would be for root. */ |
| 1283 | added_perms = S_IRUSR|S_IWUSR|S_IXUSR; |
| 1284 | } else |
| 1285 | added_perms = 0; |
| 1286 | if (is_dir < 0) { |
| 1287 | /* In inc_recurse mode we want to make sure any missing |
| 1288 | * directories get created while we're still processing |
| 1289 | * the parent dir (which allows us to touch the parent |
| 1290 | * dir's mtime right away). We will handle the dir in |
| 1291 | * full later (right before we handle its contents). */ |
| 1292 | if (statret == 0 |
| 1293 | && (S_ISDIR(sx.st.st_mode) |
| 1294 | || delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_DIR) != 0)) |
| 1295 | goto cleanup; /* Any errors get reported later. */ |
| 1296 | if (do_mkdir(fname, (file->mode|added_perms) & 0700) == 0) |
| 1297 | file->flags |= FLAG_DIR_CREATED; |
| 1298 | goto cleanup; |
| 1299 | } |
| 1300 | /* The file to be received is a directory, so we need |
| 1301 | * to prepare appropriately. If there is already a |
| 1302 | * file of that name and it is *not* a directory, then |
| 1303 | * we need to delete it. If it doesn't exist, then |
| 1304 | * (perhaps recursively) create it. */ |
| 1305 | if (statret == 0 && !S_ISDIR(sx.st.st_mode)) { |
| 1306 | if (delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_DIR) != 0) |
| 1307 | goto skipping_dir_contents; |
| 1308 | statret = -1; |
| 1309 | } |
| 1310 | if (dry_run && statret != 0) { |
| 1311 | if (!dry_missing_dir) |
| 1312 | dry_missing_dir = file; |
| 1313 | file->flags |= FLAG_MISSING_DIR; |
| 1314 | } |
| 1315 | real_ret = statret; |
| 1316 | real_sx = sx; |
| 1317 | if (file->flags & FLAG_DIR_CREATED) |
| 1318 | statret = -1; |
| 1319 | if (!preserve_perms) { /* See comment in non-dir code below. */ |
| 1320 | file->mode = dest_mode(file->mode, sx.st.st_mode, |
| 1321 | dflt_perms, statret == 0); |
| 1322 | } |
| 1323 | if (statret != 0 && basis_dir[0] != NULL) { |
| 1324 | int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx, |
| 1325 | itemizing, code); |
| 1326 | if (j == -2) { |
| 1327 | itemizing = 0; |
| 1328 | code = FNONE; |
| 1329 | statret = 1; |
| 1330 | } else if (j >= 0) { |
| 1331 | statret = 1; |
| 1332 | fnamecmp = fnamecmpbuf; |
| 1333 | } |
| 1334 | } |
| 1335 | if (itemizing && f_out != -1) { |
| 1336 | itemize(fnamecmp, file, ndx, statret, &sx, |
| 1337 | statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL); |
| 1338 | } |
| 1339 | if (real_ret != 0 && do_mkdir(fname,file->mode|added_perms) < 0 && errno != EEXIST) { |
| 1340 | if (!relative_paths || errno != ENOENT |
| 1341 | || make_path(fname, MKP_DROP_NAME | MKP_SKIP_SLASH) < 0 |
| 1342 | || (do_mkdir(fname, file->mode|added_perms) < 0 && errno != EEXIST)) { |
| 1343 | rsyserr(FERROR_XFER, errno, |
| 1344 | "recv_generator: mkdir %s failed", |
| 1345 | full_fname(fname)); |
| 1346 | skipping_dir_contents: |
| 1347 | rprintf(FERROR, |
| 1348 | "*** Skipping any contents from this failed directory ***\n"); |
| 1349 | skip_dir = file; |
| 1350 | file->flags |= FLAG_MISSING_DIR; |
| 1351 | goto cleanup; |
| 1352 | } |
| 1353 | } |
| 1354 | #ifdef SUPPORT_XATTRS |
| 1355 | if (preserve_xattrs && statret == 1) |
| 1356 | copy_xattrs(fnamecmpbuf, fname); |
| 1357 | #endif |
| 1358 | if (set_file_attrs(fname, file, real_ret ? NULL : &real_sx, NULL, 0) |
| 1359 | && INFO_GTE(NAME, 1) && code != FNONE && f_out != -1) |
| 1360 | rprintf(code, "%s/\n", fname); |
| 1361 | |
| 1362 | /* We need to ensure that the dirs in the transfer have writable |
| 1363 | * permissions during the time we are putting files within them. |
| 1364 | * This is then fixed after the transfer is done. */ |
| 1365 | #ifdef HAVE_CHMOD |
| 1366 | if (!am_root && !(file->mode & S_IWUSR) && dir_tweaking) { |
| 1367 | mode_t mode = file->mode | S_IWUSR; |
| 1368 | if (do_chmod(fname, mode) < 0) { |
| 1369 | rsyserr(FERROR_XFER, errno, |
| 1370 | "failed to modify permissions on %s", |
| 1371 | full_fname(fname)); |
| 1372 | } |
| 1373 | need_retouch_dir_perms = 1; |
| 1374 | } |
| 1375 | #endif |
| 1376 | |
| 1377 | if (real_ret != 0 && one_file_system) |
| 1378 | real_sx.st.st_dev = filesystem_dev; |
| 1379 | if (inc_recurse) { |
| 1380 | if (one_file_system) { |
| 1381 | uint32 *devp = F_DIR_DEV_P(file); |
| 1382 | DEV_MAJOR(devp) = major(real_sx.st.st_dev); |
| 1383 | DEV_MINOR(devp) = minor(real_sx.st.st_dev); |
| 1384 | } |
| 1385 | } |
| 1386 | else if (delete_during && f_out != -1 && !phase |
| 1387 | && !(file->flags & FLAG_MISSING_DIR)) { |
| 1388 | if (file->flags & FLAG_CONTENT_DIR) |
| 1389 | delete_in_dir(fname, file, &real_sx.st.st_dev); |
| 1390 | else |
| 1391 | change_local_filter_dir(fname, strlen(fname), F_DEPTH(file)); |
| 1392 | } |
| 1393 | goto cleanup; |
| 1394 | } |
| 1395 | |
| 1396 | /* If we're not preserving permissions, change the file-list's |
| 1397 | * mode based on the local permissions and some heuristics. */ |
| 1398 | if (!preserve_perms) { |
| 1399 | int exists = statret == 0 && !S_ISDIR(sx.st.st_mode); |
| 1400 | file->mode = dest_mode(file->mode, sx.st.st_mode, dflt_perms, |
| 1401 | exists); |
| 1402 | } |
| 1403 | |
| 1404 | #ifdef SUPPORT_HARD_LINKS |
| 1405 | if (preserve_hard_links && F_HLINK_NOT_FIRST(file) |
| 1406 | && hard_link_check(file, ndx, fname, statret, &sx, itemizing, code)) |
| 1407 | goto cleanup; |
| 1408 | #endif |
| 1409 | |
| 1410 | if (preserve_links && S_ISLNK(file->mode)) { |
| 1411 | #ifdef SUPPORT_LINKS |
| 1412 | const char *sl = F_SYMLINK(file); |
| 1413 | if (safe_symlinks && unsafe_symlink(sl, fname)) { |
| 1414 | if (INFO_GTE(NAME, 1)) { |
| 1415 | if (solo_file) { |
| 1416 | /* fname contains the destination path, but we |
| 1417 | * want to report the source path. */ |
| 1418 | fname = f_name(file, NULL); |
| 1419 | } |
| 1420 | rprintf(FINFO, |
| 1421 | "ignoring unsafe symlink \"%s\" -> \"%s\"\n", |
| 1422 | fname, sl); |
| 1423 | } |
| 1424 | return; |
| 1425 | } |
| 1426 | if (statret == 0) { |
| 1427 | char lnk[MAXPATHLEN]; |
| 1428 | int len; |
| 1429 | |
| 1430 | if (S_ISLNK(sx.st.st_mode) |
| 1431 | && (len = do_readlink(fname, lnk, MAXPATHLEN-1)) > 0 |
| 1432 | && strncmp(lnk, sl, len) == 0 && sl[len] == '\0') { |
| 1433 | /* The link is pointing to the right place. */ |
| 1434 | set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT); |
| 1435 | if (itemizing) |
| 1436 | itemize(fname, file, ndx, 0, &sx, 0, 0, NULL); |
| 1437 | #if defined SUPPORT_HARD_LINKS && defined CAN_HARDLINK_SYMLINK |
| 1438 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1439 | finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1); |
| 1440 | #endif |
| 1441 | if (remove_source_files == 1) |
| 1442 | goto return_with_success; |
| 1443 | goto cleanup; |
| 1444 | } |
| 1445 | } else if (basis_dir[0] != NULL) { |
| 1446 | int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx, |
| 1447 | itemizing, code); |
| 1448 | if (j == -2) { |
| 1449 | #ifndef CAN_HARDLINK_SYMLINK |
| 1450 | if (link_dest) { |
| 1451 | /* Resort to --copy-dest behavior. */ |
| 1452 | } else |
| 1453 | #endif |
| 1454 | if (!copy_dest) |
| 1455 | goto cleanup; |
| 1456 | itemizing = 0; |
| 1457 | code = FNONE; |
| 1458 | } else if (j >= 0) |
| 1459 | statret = 1; |
| 1460 | } |
| 1461 | if (atomic_create(file, fname, sl, MAKEDEV(0, 0), &sx, statret == 0 ? DEL_FOR_SYMLINK : 0)) { |
| 1462 | set_file_attrs(fname, file, NULL, NULL, 0); |
| 1463 | if (itemizing) { |
| 1464 | if (statret == 0 && !S_ISLNK(sx.st.st_mode)) |
| 1465 | statret = -1; |
| 1466 | itemize(fname, file, ndx, statret, &sx, |
| 1467 | ITEM_LOCAL_CHANGE|ITEM_REPORT_CHANGE, 0, NULL); |
| 1468 | } |
| 1469 | if (code != FNONE && INFO_GTE(NAME, 1)) |
| 1470 | rprintf(code, "%s -> %s\n", fname, sl); |
| 1471 | #ifdef SUPPORT_HARD_LINKS |
| 1472 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1473 | finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1); |
| 1474 | #endif |
| 1475 | /* This does not check remove_source_files == 1 |
| 1476 | * because this is one of the items that the old |
| 1477 | * --remove-sent-files option would remove. */ |
| 1478 | if (remove_source_files) |
| 1479 | goto return_with_success; |
| 1480 | } |
| 1481 | #endif |
| 1482 | goto cleanup; |
| 1483 | } |
| 1484 | |
| 1485 | if ((am_root && preserve_devices && IS_DEVICE(file->mode)) |
| 1486 | || (preserve_specials && IS_SPECIAL(file->mode))) { |
| 1487 | dev_t rdev; |
| 1488 | int del_for_flag = 0; |
| 1489 | if (IS_DEVICE(file->mode)) { |
| 1490 | uint32 *devp = F_RDEV_P(file); |
| 1491 | rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)); |
| 1492 | } else |
| 1493 | rdev = 0; |
| 1494 | if (statret == 0) { |
| 1495 | if (IS_DEVICE(file->mode)) { |
| 1496 | if (!IS_DEVICE(sx.st.st_mode)) |
| 1497 | statret = -1; |
| 1498 | del_for_flag = DEL_FOR_DEVICE; |
| 1499 | } else { |
| 1500 | if (!IS_SPECIAL(sx.st.st_mode)) |
| 1501 | statret = -1; |
| 1502 | del_for_flag = DEL_FOR_SPECIAL; |
| 1503 | } |
| 1504 | if (statret == 0 |
| 1505 | && BITS_EQUAL(sx.st.st_mode, file->mode, _S_IFMT) |
| 1506 | && (IS_SPECIAL(sx.st.st_mode) || sx.st.st_rdev == rdev)) { |
| 1507 | /* The device or special file is identical. */ |
| 1508 | set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT); |
| 1509 | if (itemizing) |
| 1510 | itemize(fname, file, ndx, 0, &sx, 0, 0, NULL); |
| 1511 | #ifdef SUPPORT_HARD_LINKS |
| 1512 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1513 | finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1); |
| 1514 | #endif |
| 1515 | if (remove_source_files == 1) |
| 1516 | goto return_with_success; |
| 1517 | goto cleanup; |
| 1518 | } |
| 1519 | } else if (basis_dir[0] != NULL) { |
| 1520 | int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx, |
| 1521 | itemizing, code); |
| 1522 | if (j == -2) { |
| 1523 | #ifndef CAN_HARDLINK_SPECIAL |
| 1524 | if (link_dest) { |
| 1525 | /* Resort to --copy-dest behavior. */ |
| 1526 | } else |
| 1527 | #endif |
| 1528 | if (!copy_dest) |
| 1529 | goto cleanup; |
| 1530 | itemizing = 0; |
| 1531 | code = FNONE; |
| 1532 | } else if (j >= 0) |
| 1533 | statret = 1; |
| 1534 | } |
| 1535 | if (DEBUG_GTE(GENR, 1)) { |
| 1536 | rprintf(FINFO, "mknod(%s, 0%o, [%ld,%ld])\n", |
| 1537 | fname, (int)file->mode, |
| 1538 | (long)major(rdev), (long)minor(rdev)); |
| 1539 | } |
| 1540 | if (atomic_create(file, fname, NULL, rdev, &sx, del_for_flag)) { |
| 1541 | set_file_attrs(fname, file, NULL, NULL, 0); |
| 1542 | if (itemizing) { |
| 1543 | itemize(fname, file, ndx, statret, &sx, |
| 1544 | ITEM_LOCAL_CHANGE|ITEM_REPORT_CHANGE, 0, NULL); |
| 1545 | } |
| 1546 | if (code != FNONE && INFO_GTE(NAME, 1)) |
| 1547 | rprintf(code, "%s\n", fname); |
| 1548 | #ifdef SUPPORT_HARD_LINKS |
| 1549 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1550 | finish_hard_link(file, fname, ndx, NULL, itemizing, code, -1); |
| 1551 | #endif |
| 1552 | if (remove_source_files == 1) |
| 1553 | goto return_with_success; |
| 1554 | } |
| 1555 | goto cleanup; |
| 1556 | } |
| 1557 | |
| 1558 | if (!S_ISREG(file->mode)) { |
| 1559 | if (solo_file) |
| 1560 | fname = f_name(file, NULL); |
| 1561 | rprintf(FINFO, "skipping non-regular file \"%s\"\n", fname); |
| 1562 | goto cleanup; |
| 1563 | } |
| 1564 | |
| 1565 | if (max_size > 0 && F_LENGTH(file) > max_size) { |
| 1566 | if (INFO_GTE(SKIP, 1)) { |
| 1567 | if (solo_file) |
| 1568 | fname = f_name(file, NULL); |
| 1569 | rprintf(FINFO, "%s is over max-size\n", fname); |
| 1570 | } |
| 1571 | goto cleanup; |
| 1572 | } |
| 1573 | if (min_size > 0 && F_LENGTH(file) < min_size) { |
| 1574 | if (INFO_GTE(SKIP, 1)) { |
| 1575 | if (solo_file) |
| 1576 | fname = f_name(file, NULL); |
| 1577 | rprintf(FINFO, "%s is under min-size\n", fname); |
| 1578 | } |
| 1579 | goto cleanup; |
| 1580 | } |
| 1581 | |
| 1582 | if (update_only > 0 && statret == 0 |
| 1583 | && cmp_time(sx.st.st_mtime, file->modtime) > 0) { |
| 1584 | if (INFO_GTE(SKIP, 1)) |
| 1585 | rprintf(FINFO, "%s is newer\n", fname); |
| 1586 | #ifdef SUPPORT_HARD_LINKS |
| 1587 | if (F_IS_HLINKED(file)) |
| 1588 | handle_skipped_hlink(file, itemizing, code, f_out); |
| 1589 | #endif |
| 1590 | goto cleanup; |
| 1591 | } |
| 1592 | |
| 1593 | fnamecmp_type = FNAMECMP_FNAME; |
| 1594 | |
| 1595 | if (statret == 0 && !S_ISREG(sx.st.st_mode)) { |
| 1596 | if (delete_item(fname, sx.st.st_mode, del_opts | DEL_FOR_FILE) != 0) |
| 1597 | goto cleanup; |
| 1598 | statret = -1; |
| 1599 | stat_errno = ENOENT; |
| 1600 | } |
| 1601 | |
| 1602 | if (statret != 0 && basis_dir[0] != NULL) { |
| 1603 | int j = try_dests_reg(file, fname, ndx, fnamecmpbuf, &sx, |
| 1604 | itemizing, code); |
| 1605 | if (j == -2) { |
| 1606 | if (remove_source_files == 1) |
| 1607 | goto return_with_success; |
| 1608 | goto cleanup; |
| 1609 | } |
| 1610 | if (j >= 0) { |
| 1611 | fnamecmp = fnamecmpbuf; |
| 1612 | fnamecmp_type = j; |
| 1613 | statret = 0; |
| 1614 | } |
| 1615 | } |
| 1616 | |
| 1617 | real_ret = statret; |
| 1618 | real_sx = sx; |
| 1619 | |
| 1620 | if (partial_dir && (partialptr = partial_dir_fname(fname)) != NULL |
| 1621 | && link_stat(partialptr, &partial_st, 0) == 0 |
| 1622 | && S_ISREG(partial_st.st_mode)) { |
| 1623 | if (statret != 0) |
| 1624 | goto prepare_to_open; |
| 1625 | } else |
| 1626 | partialptr = NULL; |
| 1627 | |
| 1628 | if (statret != 0 && fuzzy_dirlist) { |
| 1629 | int j = find_fuzzy(file, fuzzy_dirlist); |
| 1630 | if (j >= 0) { |
| 1631 | fuzzy_file = fuzzy_dirlist->files[j]; |
| 1632 | f_name(fuzzy_file, fnamecmpbuf); |
| 1633 | if (DEBUG_GTE(FUZZY, 1)) { |
| 1634 | rprintf(FINFO, "fuzzy basis selected for %s: %s\n", |
| 1635 | fname, fnamecmpbuf); |
| 1636 | } |
| 1637 | sx.st.st_size = F_LENGTH(fuzzy_file); |
| 1638 | statret = 0; |
| 1639 | fnamecmp = fnamecmpbuf; |
| 1640 | fnamecmp_type = FNAMECMP_FUZZY; |
| 1641 | } |
| 1642 | } |
| 1643 | |
| 1644 | if (statret != 0) { |
| 1645 | #ifdef SUPPORT_HARD_LINKS |
| 1646 | if (preserve_hard_links && F_HLINK_NOT_LAST(file)) { |
| 1647 | cur_flist->in_progress++; |
| 1648 | goto cleanup; |
| 1649 | } |
| 1650 | #endif |
| 1651 | if (stat_errno == ENOENT) |
| 1652 | goto notify_others; |
| 1653 | rsyserr(FERROR_XFER, stat_errno, "recv_generator: failed to stat %s", |
| 1654 | full_fname(fname)); |
| 1655 | goto cleanup; |
| 1656 | } |
| 1657 | |
| 1658 | if (fnamecmp_type <= FNAMECMP_BASIS_DIR_HIGH) |
| 1659 | ; |
| 1660 | else if (fnamecmp_type == FNAMECMP_FUZZY) |
| 1661 | ; |
| 1662 | else if (unchanged_file(fnamecmp, file, &sx.st)) { |
| 1663 | if (partialptr) { |
| 1664 | do_unlink(partialptr); |
| 1665 | handle_partial_dir(partialptr, PDIR_DELETE); |
| 1666 | } |
| 1667 | set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT); |
| 1668 | if (itemizing) |
| 1669 | itemize(fnamecmp, file, ndx, statret, &sx, 0, 0, NULL); |
| 1670 | #ifdef SUPPORT_HARD_LINKS |
| 1671 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1672 | finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1); |
| 1673 | #endif |
| 1674 | if (remove_source_files != 1) |
| 1675 | goto cleanup; |
| 1676 | return_with_success: |
| 1677 | if (!dry_run) |
| 1678 | send_msg_int(MSG_SUCCESS, ndx); |
| 1679 | goto cleanup; |
| 1680 | } |
| 1681 | |
| 1682 | if (append_mode > 0 && sx.st.st_size >= F_LENGTH(file)) { |
| 1683 | #ifdef SUPPORT_HARD_LINKS |
| 1684 | if (F_IS_HLINKED(file)) |
| 1685 | handle_skipped_hlink(file, itemizing, code, f_out); |
| 1686 | #endif |
| 1687 | goto cleanup; |
| 1688 | } |
| 1689 | |
| 1690 | prepare_to_open: |
| 1691 | if (partialptr) { |
| 1692 | sx.st = partial_st; |
| 1693 | fnamecmp = partialptr; |
| 1694 | fnamecmp_type = FNAMECMP_PARTIAL_DIR; |
| 1695 | statret = 0; |
| 1696 | } |
| 1697 | |
| 1698 | if (!do_xfers) |
| 1699 | goto notify_others; |
| 1700 | |
| 1701 | if (read_batch || whole_file) { |
| 1702 | if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) { |
| 1703 | if (!(backupptr = get_backup_name(fname))) |
| 1704 | goto cleanup; |
| 1705 | if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) |
| 1706 | goto pretend_missing; |
| 1707 | if (copy_file(fname, backupptr, -1, back_file->mode) < 0) { |
| 1708 | unmake_file(back_file); |
| 1709 | back_file = NULL; |
| 1710 | goto cleanup; |
| 1711 | } |
| 1712 | } |
| 1713 | goto notify_others; |
| 1714 | } |
| 1715 | |
| 1716 | if (fuzzy_dirlist) { |
| 1717 | int j = flist_find(fuzzy_dirlist, file); |
| 1718 | if (j >= 0) /* don't use changing file as future fuzzy basis */ |
| 1719 | fuzzy_dirlist->files[j]->flags |= FLAG_FILE_SENT; |
| 1720 | } |
| 1721 | |
| 1722 | /* open the file */ |
| 1723 | if ((fd = do_open(fnamecmp, O_RDONLY, 0)) < 0) { |
| 1724 | rsyserr(FERROR, errno, "failed to open %s, continuing", |
| 1725 | full_fname(fnamecmp)); |
| 1726 | pretend_missing: |
| 1727 | /* pretend the file didn't exist */ |
| 1728 | #ifdef SUPPORT_HARD_LINKS |
| 1729 | if (preserve_hard_links && F_HLINK_NOT_LAST(file)) { |
| 1730 | cur_flist->in_progress++; |
| 1731 | goto cleanup; |
| 1732 | } |
| 1733 | #endif |
| 1734 | statret = real_ret = -1; |
| 1735 | goto notify_others; |
| 1736 | } |
| 1737 | |
| 1738 | if (inplace && make_backups > 0 && fnamecmp_type == FNAMECMP_FNAME) { |
| 1739 | if (!(backupptr = get_backup_name(fname))) { |
| 1740 | close(fd); |
| 1741 | goto cleanup; |
| 1742 | } |
| 1743 | if (!(back_file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) { |
| 1744 | close(fd); |
| 1745 | goto pretend_missing; |
| 1746 | } |
| 1747 | if (robust_unlink(backupptr) && errno != ENOENT) { |
| 1748 | rsyserr(FERROR_XFER, errno, "unlink %s", |
| 1749 | full_fname(backupptr)); |
| 1750 | unmake_file(back_file); |
| 1751 | back_file = NULL; |
| 1752 | close(fd); |
| 1753 | goto cleanup; |
| 1754 | } |
| 1755 | if ((f_copy = do_open(backupptr, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0600)) < 0) { |
| 1756 | rsyserr(FERROR_XFER, errno, "open %s", full_fname(backupptr)); |
| 1757 | unmake_file(back_file); |
| 1758 | back_file = NULL; |
| 1759 | close(fd); |
| 1760 | goto cleanup; |
| 1761 | } |
| 1762 | fnamecmp_type = FNAMECMP_BACKUP; |
| 1763 | } |
| 1764 | |
| 1765 | if (DEBUG_GTE(DELTASUM, 3)) { |
| 1766 | rprintf(FINFO, "gen mapped %s of size %s\n", |
| 1767 | fnamecmp, big_num(sx.st.st_size)); |
| 1768 | } |
| 1769 | |
| 1770 | if (DEBUG_GTE(DELTASUM, 2)) |
| 1771 | rprintf(FINFO, "generating and sending sums for %d\n", ndx); |
| 1772 | |
| 1773 | notify_others: |
| 1774 | if (remove_source_files && !delay_updates && !phase && !dry_run) |
| 1775 | increment_active_files(ndx, itemizing, code); |
| 1776 | if (inc_recurse && !dry_run) |
| 1777 | cur_flist->in_progress++; |
| 1778 | #ifdef SUPPORT_HARD_LINKS |
| 1779 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1780 | file->flags |= FLAG_FILE_SENT; |
| 1781 | #endif |
| 1782 | write_ndx(f_out, ndx); |
| 1783 | if (itemizing) { |
| 1784 | int iflags = ITEM_TRANSFER; |
| 1785 | if (always_checksum > 0) |
| 1786 | iflags |= ITEM_REPORT_CHANGE; |
| 1787 | if (fnamecmp_type != FNAMECMP_FNAME) |
| 1788 | iflags |= ITEM_BASIS_TYPE_FOLLOWS; |
| 1789 | if (fnamecmp_type == FNAMECMP_FUZZY) |
| 1790 | iflags |= ITEM_XNAME_FOLLOWS; |
| 1791 | itemize(fnamecmp, file, -1, real_ret, &real_sx, iflags, fnamecmp_type, |
| 1792 | fuzzy_file ? fuzzy_file->basename : NULL); |
| 1793 | #ifdef SUPPORT_ACLS |
| 1794 | if (preserve_acls) |
| 1795 | free_acl(&real_sx); |
| 1796 | #endif |
| 1797 | #ifdef SUPPORT_XATTRS |
| 1798 | if (preserve_xattrs) |
| 1799 | free_xattr(&real_sx); |
| 1800 | #endif |
| 1801 | } |
| 1802 | |
| 1803 | if (!do_xfers) { |
| 1804 | #ifdef SUPPORT_HARD_LINKS |
| 1805 | if (preserve_hard_links && F_IS_HLINKED(file)) |
| 1806 | finish_hard_link(file, fname, ndx, &sx.st, itemizing, code, -1); |
| 1807 | #endif |
| 1808 | goto cleanup; |
| 1809 | } |
| 1810 | if (read_batch) |
| 1811 | goto cleanup; |
| 1812 | |
| 1813 | if (statret != 0 || whole_file) |
| 1814 | write_sum_head(f_out, NULL); |
| 1815 | else if (sx.st.st_size <= 0) { |
| 1816 | write_sum_head(f_out, NULL); |
| 1817 | close(fd); |
| 1818 | } else { |
| 1819 | if (generate_and_send_sums(fd, sx.st.st_size, f_out, f_copy) < 0) { |
| 1820 | rprintf(FWARNING, |
| 1821 | "WARNING: file is too large for checksum sending: %s\n", |
| 1822 | fnamecmp); |
| 1823 | write_sum_head(f_out, NULL); |
| 1824 | } |
| 1825 | close(fd); |
| 1826 | } |
| 1827 | |
| 1828 | cleanup: |
| 1829 | if (back_file) { |
| 1830 | int save_preserve_xattrs = preserve_xattrs; |
| 1831 | if (f_copy >= 0) |
| 1832 | close(f_copy); |
| 1833 | #ifdef SUPPORT_XATTRS |
| 1834 | if (preserve_xattrs) { |
| 1835 | copy_xattrs(fname, backupptr); |
| 1836 | preserve_xattrs = 0; |
| 1837 | } |
| 1838 | #endif |
| 1839 | set_file_attrs(backupptr, back_file, NULL, NULL, 0); |
| 1840 | preserve_xattrs = save_preserve_xattrs; |
| 1841 | if (INFO_GTE(BACKUP, 1)) { |
| 1842 | rprintf(FINFO, "backed up %s to %s\n", |
| 1843 | fname, backupptr); |
| 1844 | } |
| 1845 | unmake_file(back_file); |
| 1846 | } |
| 1847 | |
| 1848 | #ifdef SUPPORT_ACLS |
| 1849 | if (preserve_acls) |
| 1850 | free_acl(&sx); |
| 1851 | #endif |
| 1852 | #ifdef SUPPORT_XATTRS |
| 1853 | if (preserve_xattrs) |
| 1854 | free_xattr(&sx); |
| 1855 | #endif |
| 1856 | return; |
| 1857 | } |
| 1858 | |
| 1859 | /* If we are replacing an existing hard link, symlink, device, or special file, |
| 1860 | * create a temp-name item and rename it into place. Only a symlink or hard |
| 1861 | * link puts a non-NULL value into the lnk arg. Only a device puts a non-0 |
| 1862 | * value into the rdev arg. Specify 0 for the del_for_flag if there is not a |
| 1863 | * file to replace. This returns 1 on success and 0 on failure. */ |
| 1864 | int atomic_create(struct file_struct *file, char *fname, const char *lnk, |
| 1865 | dev_t rdev, stat_x *sxp, int del_for_flag) |
| 1866 | { |
| 1867 | char tmpname[MAXPATHLEN]; |
| 1868 | const char *create_name; |
| 1869 | int skip_atomic, dir_in_the_way = del_for_flag && S_ISDIR(sxp->st.st_mode); |
| 1870 | |
| 1871 | if (!del_for_flag || dir_in_the_way || tmpdir || !get_tmpname(tmpname, fname, True)) |
| 1872 | skip_atomic = 1; |
| 1873 | else |
| 1874 | skip_atomic = 0; |
| 1875 | |
| 1876 | if (del_for_flag) { |
| 1877 | if (make_backups > 0 && !dir_in_the_way) { |
| 1878 | if (!make_backup(fname, skip_atomic)) |
| 1879 | return 0; |
| 1880 | } else if (skip_atomic) { |
| 1881 | int del_opts = delete_mode || force_delete ? DEL_RECURSE : 0; |
| 1882 | if (delete_item(fname, sxp->st.st_mode, del_opts | del_for_flag) != 0) |
| 1883 | return 0; |
| 1884 | } |
| 1885 | } |
| 1886 | |
| 1887 | create_name = skip_atomic ? fname : tmpname; |
| 1888 | |
| 1889 | if (lnk) { |
| 1890 | #ifdef SUPPORT_LINKS |
| 1891 | if (S_ISLNK(file->mode) |
| 1892 | #ifdef SUPPORT_HARD_LINKS /* The first symlink in a hard-linked cluster is always created. */ |
| 1893 | && (!F_IS_HLINKED(file) || file->flags & FLAG_HLINK_FIRST) |
| 1894 | #endif |
| 1895 | ) { |
| 1896 | if (do_symlink(lnk, create_name) < 0) { |
| 1897 | rsyserr(FERROR_XFER, errno, "symlink %s -> \"%s\" failed", |
| 1898 | full_fname(create_name), lnk); |
| 1899 | return 0; |
| 1900 | } |
| 1901 | } else |
| 1902 | #endif |
| 1903 | #ifdef SUPPORT_HARD_LINKS |
| 1904 | if (!hard_link_one(file, create_name, lnk, 0)) |
| 1905 | return 0; |
| 1906 | #endif |
| 1907 | } else { |
| 1908 | if (do_mknod(create_name, file->mode, rdev) < 0) { |
| 1909 | rsyserr(FERROR_XFER, errno, "mknod %s failed", |
| 1910 | full_fname(create_name)); |
| 1911 | return 0; |
| 1912 | } |
| 1913 | } |
| 1914 | |
| 1915 | if (!skip_atomic) { |
| 1916 | if (do_rename(tmpname, fname) < 0) { |
| 1917 | rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\" failed", |
| 1918 | full_fname(tmpname), full_fname(fname)); |
| 1919 | do_unlink(tmpname); |
| 1920 | return 0; |
| 1921 | } |
| 1922 | } |
| 1923 | |
| 1924 | return 1; |
| 1925 | } |
| 1926 | |
| 1927 | #ifdef SUPPORT_HARD_LINKS |
| 1928 | static void handle_skipped_hlink(struct file_struct *file, int itemizing, |
| 1929 | enum logcode code, int f_out) |
| 1930 | { |
| 1931 | char fbuf[MAXPATHLEN]; |
| 1932 | int new_last_ndx; |
| 1933 | struct file_list *save_flist = cur_flist; |
| 1934 | |
| 1935 | /* If we skip the last item in a chain of links and there was a |
| 1936 | * prior non-skipped hard-link waiting to finish, finish it now. */ |
| 1937 | if ((new_last_ndx = skip_hard_link(file, &cur_flist)) < 0) |
| 1938 | return; |
| 1939 | |
| 1940 | file = cur_flist->files[new_last_ndx - cur_flist->ndx_start]; |
| 1941 | cur_flist->in_progress--; /* undo prior increment */ |
| 1942 | f_name(file, fbuf); |
| 1943 | recv_generator(fbuf, file, new_last_ndx, itemizing, code, f_out); |
| 1944 | |
| 1945 | cur_flist = save_flist; |
| 1946 | } |
| 1947 | #endif |
| 1948 | |
| 1949 | static void touch_up_dirs(struct file_list *flist, int ndx) |
| 1950 | { |
| 1951 | static int counter = 0; |
| 1952 | struct file_struct *file; |
| 1953 | char *fname; |
| 1954 | BOOL fix_dir_perms; |
| 1955 | int i, start, end; |
| 1956 | |
| 1957 | if (ndx < 0) { |
| 1958 | start = 0; |
| 1959 | end = flist->used - 1; |
| 1960 | } else |
| 1961 | start = end = ndx; |
| 1962 | |
| 1963 | /* Fix any directory permissions that were modified during the |
| 1964 | * transfer and/or re-set any tweaked modified-time values. */ |
| 1965 | for (i = start; i <= end; i++, counter++) { |
| 1966 | file = flist->files[i]; |
| 1967 | if (!S_ISDIR(file->mode) |
| 1968 | || (!implied_dirs && file->flags & FLAG_IMPLIED_DIR)) |
| 1969 | continue; |
| 1970 | if (DEBUG_GTE(TIME, 2)) { |
| 1971 | fname = f_name(file, NULL); |
| 1972 | rprintf(FINFO, "touch_up_dirs: %s (%d)\n", |
| 1973 | NS(fname), i); |
| 1974 | } |
| 1975 | /* Be sure not to retouch permissions with --fake-super. */ |
| 1976 | fix_dir_perms = !am_root && !(file->mode & S_IWUSR); |
| 1977 | if (!F_IS_ACTIVE(file) || file->flags & FLAG_MISSING_DIR |
| 1978 | || !(need_retouch_dir_times || fix_dir_perms)) |
| 1979 | continue; |
| 1980 | fname = f_name(file, NULL); |
| 1981 | if (fix_dir_perms) |
| 1982 | do_chmod(fname, file->mode); |
| 1983 | if (need_retouch_dir_times) { |
| 1984 | STRUCT_STAT st; |
| 1985 | if (link_stat(fname, &st, 0) == 0 |
| 1986 | && cmp_time(st.st_mtime, file->modtime) != 0) |
| 1987 | set_modtime(fname, file->modtime, F_MOD_NSEC(file), file->mode); |
| 1988 | } |
| 1989 | if (counter >= loopchk_limit) { |
| 1990 | if (allowed_lull) |
| 1991 | maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH); |
| 1992 | else |
| 1993 | maybe_flush_socket(0); |
| 1994 | counter = 0; |
| 1995 | } |
| 1996 | } |
| 1997 | } |
| 1998 | |
| 1999 | void check_for_finished_files(int itemizing, enum logcode code, int check_redo) |
| 2000 | { |
| 2001 | struct file_struct *file; |
| 2002 | struct file_list *flist; |
| 2003 | char fbuf[MAXPATHLEN]; |
| 2004 | int ndx; |
| 2005 | |
| 2006 | while (1) { |
| 2007 | #ifdef SUPPORT_HARD_LINKS |
| 2008 | if (preserve_hard_links && (ndx = get_hlink_num()) != -1) { |
| 2009 | flist = flist_for_ndx(ndx, "check_for_finished_files.1"); |
| 2010 | file = flist->files[ndx - flist->ndx_start]; |
| 2011 | assert(file->flags & FLAG_HLINKED); |
| 2012 | finish_hard_link(file, f_name(file, fbuf), ndx, NULL, itemizing, code, -1); |
| 2013 | flist->in_progress--; |
| 2014 | continue; |
| 2015 | } |
| 2016 | #endif |
| 2017 | |
| 2018 | if (check_redo && (ndx = get_redo_num()) != -1) { |
| 2019 | csum_length = SUM_LENGTH; |
| 2020 | max_size = -max_size; |
| 2021 | min_size = -min_size; |
| 2022 | ignore_existing = -ignore_existing; |
| 2023 | ignore_non_existing = -ignore_non_existing; |
| 2024 | update_only = -update_only; |
| 2025 | always_checksum = -always_checksum; |
| 2026 | size_only = -size_only; |
| 2027 | append_mode = -append_mode; |
| 2028 | make_backups = -make_backups; /* avoid dup backup w/inplace */ |
| 2029 | ignore_times++; |
| 2030 | |
| 2031 | flist = cur_flist; |
| 2032 | cur_flist = flist_for_ndx(ndx, "check_for_finished_files.2"); |
| 2033 | |
| 2034 | file = cur_flist->files[ndx - cur_flist->ndx_start]; |
| 2035 | if (solo_file) |
| 2036 | strlcpy(fbuf, solo_file, sizeof fbuf); |
| 2037 | else |
| 2038 | f_name(file, fbuf); |
| 2039 | recv_generator(fbuf, file, ndx, itemizing, code, sock_f_out); |
| 2040 | cur_flist->to_redo--; |
| 2041 | |
| 2042 | cur_flist = flist; |
| 2043 | |
| 2044 | csum_length = SHORT_SUM_LENGTH; |
| 2045 | max_size = -max_size; |
| 2046 | min_size = -min_size; |
| 2047 | ignore_existing = -ignore_existing; |
| 2048 | ignore_non_existing = -ignore_non_existing; |
| 2049 | update_only = -update_only; |
| 2050 | always_checksum = -always_checksum; |
| 2051 | size_only = -size_only; |
| 2052 | append_mode = -append_mode; |
| 2053 | make_backups = -make_backups; |
| 2054 | ignore_times--; |
| 2055 | continue; |
| 2056 | } |
| 2057 | |
| 2058 | if (cur_flist == first_flist) |
| 2059 | break; |
| 2060 | |
| 2061 | /* We only get here if inc_recurse is enabled. */ |
| 2062 | if (first_flist->in_progress || first_flist->to_redo) |
| 2063 | break; |
| 2064 | |
| 2065 | write_ndx(sock_f_out, NDX_DONE); |
| 2066 | if (!read_batch && !flist_eof) { |
| 2067 | int old_total = 0; |
| 2068 | for (flist = first_flist; flist != cur_flist; flist = flist->next) |
| 2069 | old_total += flist->used; |
| 2070 | maybe_flush_socket(!flist_eof && file_total - old_total < MIN_FILECNT_LOOKAHEAD/2); |
| 2071 | } |
| 2072 | |
| 2073 | if (delete_during == 2 || !dir_tweaking) { |
| 2074 | /* Skip directory touch-up. */ |
| 2075 | } else if (first_flist->parent_ndx >= 0) |
| 2076 | touch_up_dirs(dir_flist, first_flist->parent_ndx); |
| 2077 | |
| 2078 | flist_free(first_flist); /* updates first_flist */ |
| 2079 | } |
| 2080 | } |
| 2081 | |
| 2082 | void generate_files(int f_out, const char *local_name) |
| 2083 | { |
| 2084 | int i, ndx, next_loopchk = 0; |
| 2085 | char fbuf[MAXPATHLEN]; |
| 2086 | int itemizing; |
| 2087 | enum logcode code; |
| 2088 | int save_info_flist = info_levels[INFO_FLIST]; |
| 2089 | int save_info_progress = info_levels[INFO_PROGRESS]; |
| 2090 | |
| 2091 | if (protocol_version >= 29) { |
| 2092 | itemizing = 1; |
| 2093 | maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT; |
| 2094 | code = logfile_format_has_i ? FNONE : FLOG; |
| 2095 | } else if (am_daemon) { |
| 2096 | itemizing = logfile_format_has_i && do_xfers; |
| 2097 | maybe_ATTRS_REPORT = ATTRS_REPORT; |
| 2098 | code = itemizing || !do_xfers ? FCLIENT : FINFO; |
| 2099 | } else if (!am_server) { |
| 2100 | itemizing = stdout_format_has_i; |
| 2101 | maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT; |
| 2102 | code = itemizing ? FNONE : FINFO; |
| 2103 | } else { |
| 2104 | itemizing = 0; |
| 2105 | maybe_ATTRS_REPORT = ATTRS_REPORT; |
| 2106 | code = FINFO; |
| 2107 | } |
| 2108 | solo_file = local_name; |
| 2109 | dir_tweaking = !(list_only || solo_file || dry_run); |
| 2110 | need_retouch_dir_times = preserve_times & PRESERVE_DIR_TIMES; |
| 2111 | loopchk_limit = allowed_lull ? allowed_lull * 5 : 200; |
| 2112 | symlink_timeset_failed_flags = ITEM_REPORT_TIME |
| 2113 | | (protocol_version >= 30 || !am_server ? ITEM_REPORT_TIMEFAIL : 0); |
| 2114 | implied_dirs_are_missing = relative_paths && !implied_dirs && protocol_version < 30; |
| 2115 | |
| 2116 | if (DEBUG_GTE(GENR, 1)) |
| 2117 | rprintf(FINFO, "generator starting pid=%ld\n", (long)getpid()); |
| 2118 | |
| 2119 | if (delete_before && !solo_file && cur_flist->used > 0) |
| 2120 | do_delete_pass(); |
| 2121 | if (delete_during == 2) { |
| 2122 | deldelay_size = BIGPATHBUFLEN * 4; |
| 2123 | deldelay_buf = new_array(char, deldelay_size); |
| 2124 | if (!deldelay_buf) |
| 2125 | out_of_memory("delete-delay"); |
| 2126 | } |
| 2127 | info_levels[INFO_FLIST] = info_levels[INFO_PROGRESS] = 0; |
| 2128 | |
| 2129 | if (append_mode > 0 || whole_file < 0) |
| 2130 | whole_file = 0; |
| 2131 | if (DEBUG_GTE(FLIST, 1)) { |
| 2132 | rprintf(FINFO, "delta-transmission %s\n", |
| 2133 | whole_file |
| 2134 | ? "disabled for local transfer or --whole-file" |
| 2135 | : "enabled"); |
| 2136 | } |
| 2137 | |
| 2138 | dflt_perms = (ACCESSPERMS & ~orig_umask); |
| 2139 | |
| 2140 | do { |
| 2141 | #ifdef SUPPORT_HARD_LINKS |
| 2142 | if (preserve_hard_links && inc_recurse) { |
| 2143 | while (!flist_eof && file_total < MIN_FILECNT_LOOKAHEAD/2) |
| 2144 | wait_for_receiver(); |
| 2145 | } |
| 2146 | #endif |
| 2147 | |
| 2148 | if (inc_recurse && cur_flist->parent_ndx >= 0) { |
| 2149 | struct file_struct *fp = dir_flist->files[cur_flist->parent_ndx]; |
| 2150 | if (solo_file) |
| 2151 | strlcpy(fbuf, solo_file, sizeof fbuf); |
| 2152 | else |
| 2153 | f_name(fp, fbuf); |
| 2154 | ndx = cur_flist->ndx_start - 1; |
| 2155 | recv_generator(fbuf, fp, ndx, itemizing, code, f_out); |
| 2156 | if (delete_during && dry_run < 2 && !list_only |
| 2157 | && !(fp->flags & FLAG_MISSING_DIR)) { |
| 2158 | if (fp->flags & FLAG_CONTENT_DIR) { |
| 2159 | dev_t dirdev; |
| 2160 | if (one_file_system) { |
| 2161 | uint32 *devp = F_DIR_DEV_P(fp); |
| 2162 | dirdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp)); |
| 2163 | } else |
| 2164 | dirdev = MAKEDEV(0, 0); |
| 2165 | delete_in_dir(fbuf, fp, &dirdev); |
| 2166 | } else |
| 2167 | change_local_filter_dir(fbuf, strlen(fbuf), F_DEPTH(fp)); |
| 2168 | } |
| 2169 | } |
| 2170 | for (i = cur_flist->low; i <= cur_flist->high; i++) { |
| 2171 | struct file_struct *file = cur_flist->sorted[i]; |
| 2172 | |
| 2173 | if (!F_IS_ACTIVE(file)) |
| 2174 | continue; |
| 2175 | |
| 2176 | if (unsort_ndx) |
| 2177 | ndx = F_NDX(file); |
| 2178 | else |
| 2179 | ndx = i + cur_flist->ndx_start; |
| 2180 | |
| 2181 | if (solo_file) |
| 2182 | strlcpy(fbuf, solo_file, sizeof fbuf); |
| 2183 | else |
| 2184 | f_name(file, fbuf); |
| 2185 | recv_generator(fbuf, file, ndx, itemizing, code, f_out); |
| 2186 | |
| 2187 | check_for_finished_files(itemizing, code, 0); |
| 2188 | |
| 2189 | if (i + cur_flist->ndx_start >= next_loopchk) { |
| 2190 | if (allowed_lull) |
| 2191 | maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH); |
| 2192 | else |
| 2193 | maybe_flush_socket(0); |
| 2194 | next_loopchk += loopchk_limit; |
| 2195 | } |
| 2196 | } |
| 2197 | |
| 2198 | if (!inc_recurse) { |
| 2199 | write_ndx(f_out, NDX_DONE); |
| 2200 | break; |
| 2201 | } |
| 2202 | |
| 2203 | while (1) { |
| 2204 | check_for_finished_files(itemizing, code, 1); |
| 2205 | if (cur_flist->next || flist_eof) |
| 2206 | break; |
| 2207 | wait_for_receiver(); |
| 2208 | } |
| 2209 | } while ((cur_flist = cur_flist->next) != NULL); |
| 2210 | |
| 2211 | if (delete_during) |
| 2212 | delete_in_dir(NULL, NULL, &dev_zero); |
| 2213 | phase++; |
| 2214 | if (DEBUG_GTE(GENR, 1)) |
| 2215 | rprintf(FINFO, "generate_files phase=%d\n", phase); |
| 2216 | |
| 2217 | while (1) { |
| 2218 | check_for_finished_files(itemizing, code, 1); |
| 2219 | if (msgdone_cnt) |
| 2220 | break; |
| 2221 | wait_for_receiver(); |
| 2222 | } |
| 2223 | |
| 2224 | phase++; |
| 2225 | if (DEBUG_GTE(GENR, 1)) |
| 2226 | rprintf(FINFO, "generate_files phase=%d\n", phase); |
| 2227 | |
| 2228 | write_ndx(f_out, NDX_DONE); |
| 2229 | |
| 2230 | /* Reduce round-trip lag-time for a useless delay-updates phase. */ |
| 2231 | if (protocol_version >= 29 && EARLY_DELAY_DONE_MSG()) |
| 2232 | write_ndx(f_out, NDX_DONE); |
| 2233 | |
| 2234 | if (protocol_version >= 31 && EARLY_DELETE_DONE_MSG()) { |
| 2235 | if ((INFO_GTE(STATS, 2) && (delete_mode || force_delete)) || read_batch) |
| 2236 | write_del_stats(f_out); |
| 2237 | if (EARLY_DELAY_DONE_MSG()) /* Can't send this before delay */ |
| 2238 | write_ndx(f_out, NDX_DONE); |
| 2239 | } |
| 2240 | |
| 2241 | /* Read MSG_DONE for the redo phase (and any prior messages). */ |
| 2242 | while (1) { |
| 2243 | check_for_finished_files(itemizing, code, 0); |
| 2244 | if (msgdone_cnt > 1) |
| 2245 | break; |
| 2246 | wait_for_receiver(); |
| 2247 | } |
| 2248 | |
| 2249 | if (protocol_version >= 29) { |
| 2250 | phase++; |
| 2251 | if (DEBUG_GTE(GENR, 1)) |
| 2252 | rprintf(FINFO, "generate_files phase=%d\n", phase); |
| 2253 | if (!EARLY_DELAY_DONE_MSG()) { |
| 2254 | write_ndx(f_out, NDX_DONE); |
| 2255 | if (protocol_version >= 31 && EARLY_DELETE_DONE_MSG()) |
| 2256 | write_ndx(f_out, NDX_DONE); |
| 2257 | } |
| 2258 | /* Read MSG_DONE for delay-updates phase & prior messages. */ |
| 2259 | while (msgdone_cnt == 2) |
| 2260 | wait_for_receiver(); |
| 2261 | } |
| 2262 | |
| 2263 | info_levels[INFO_FLIST] = save_info_flist; |
| 2264 | info_levels[INFO_PROGRESS] = save_info_progress; |
| 2265 | |
| 2266 | if (delete_during == 2) |
| 2267 | do_delayed_deletions(fbuf); |
| 2268 | if (delete_after && !solo_file && file_total > 0) |
| 2269 | do_delete_pass(); |
| 2270 | |
| 2271 | if (max_delete >= 0 && skipped_deletes) { |
| 2272 | rprintf(FWARNING, |
| 2273 | "Deletions stopped due to --max-delete limit (%d skipped)\n", |
| 2274 | skipped_deletes); |
| 2275 | io_error |= IOERR_DEL_LIMIT; |
| 2276 | } |
| 2277 | |
| 2278 | if (protocol_version >= 31) { |
| 2279 | if (!EARLY_DELETE_DONE_MSG()) { |
| 2280 | if (INFO_GTE(STATS, 2) || read_batch) |
| 2281 | write_del_stats(f_out); |
| 2282 | write_ndx(f_out, NDX_DONE); |
| 2283 | } |
| 2284 | |
| 2285 | /* Read MSG_DONE for late-delete phase & prior messages. */ |
| 2286 | while (msgdone_cnt == 3) |
| 2287 | wait_for_receiver(); |
| 2288 | } |
| 2289 | |
| 2290 | if ((need_retouch_dir_perms || need_retouch_dir_times) |
| 2291 | && dir_tweaking && (!inc_recurse || delete_during == 2)) |
| 2292 | touch_up_dirs(dir_flist, -1); |
| 2293 | |
| 2294 | if (DEBUG_GTE(GENR, 1)) |
| 2295 | rprintf(FINFO, "generate_files finished\n"); |
| 2296 | } |