1: /*
2: * Generate and receive file lists.
3: *
4: * Copyright (C) 1996 Andrew Tridgell
5: * Copyright (C) 1996 Paul Mackerras
6: * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
7: * Copyright (C) 2002-2020 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 "ifuncs.h"
25: #include "itypes.h"
26: #include "rounding.h"
27: #include "inums.h"
28: #include "io.h"
29:
30: extern int dry_run;
31: extern int am_root;
32: extern int am_server;
33: extern int am_daemon;
34: extern int am_sender;
35: extern int am_generator;
36: extern int inc_recurse;
37: extern int always_checksum;
38: extern int basis_dir_cnt;
39: extern int checksum_type;
40: extern int module_id;
41: extern int ignore_case;
42: extern int ignore_errors;
43: extern int numeric_ids;
44: extern int quiet;
45: extern int recurse;
46: extern int use_qsort;
47: extern int xfer_dirs;
48: extern int filesfrom_fd;
49: extern int one_file_system;
50: extern int copy_dirlinks;
51: extern int preserve_uid;
52: extern int preserve_gid;
53: extern int preserve_acls;
54: extern int preserve_xattrs;
55: extern int preserve_links;
56: extern int preserve_hard_links;
57: extern int preserve_devices;
58: extern int preserve_specials;
59: extern int preserve_fileflags;
60: extern int delete_during;
61: extern int missing_args;
62: extern int use_db;
63: extern int eol_nulls;
64: extern int atimes_ndx;
65: extern int crtimes_ndx;
66: extern int relative_paths;
67: extern int implied_dirs;
68: extern int ignore_perishable;
69: extern int non_perishable_cnt;
70: extern int prune_empty_dirs;
71: extern int checksum_files;
72: extern int copy_links;
73: extern int copy_unsafe_links;
74: extern int detect_renamed;
75: extern int protocol_version;
76: extern int sanitize_paths;
77: extern int munge_symlinks;
78: extern int use_safe_inc_flist;
79: extern int need_unsorted_flist;
80: extern int sender_symlink_iconv;
81: extern int output_needs_newline;
82: extern int sender_keeps_checksum;
83: extern int unsort_ndx;
84: extern char *basis_dir[];
85: extern uid_t our_uid;
86: extern struct stats stats;
87: extern char *filesfrom_host;
88: extern char *usermap, *groupmap;
89: extern char *tr_opt;
90:
91: extern char curr_dir[MAXPATHLEN];
92:
93: extern struct chmod_mode_struct *chmod_modes;
94:
95: extern filter_rule_list filter_list;
96: extern filter_rule_list daemon_filter_list;
97: extern filter_rule *last_hit_filter_rule;
98:
99: #ifdef ICONV_OPTION
100: extern int filesfrom_convert;
101: extern iconv_t ic_send, ic_recv;
102: #endif
103:
104: #ifdef HAVE_UTIMENSAT
105: #ifdef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
106: #define ST_MTIME_NSEC st_mtim.tv_nsec
107: #elif defined(HAVE_STRUCT_STAT_ST_MTIMENSEC)
108: #define ST_MTIME_NSEC st_mtimensec
109: #endif
110: #endif
111:
112: #define RSYNCSUMS_FILE ".rsyncsums"
113: #define RSYNCSUMS_LEN (sizeof RSYNCSUMS_FILE-1)
114:
115: #define CLEAN_STRIP_ROOT (1<<0)
116: #define CLEAN_KEEP_LAST (1<<1)
117:
118: #define PTR_SIZE (sizeof (struct file_struct *))
119:
120: #define FLAG_SUM_MISSING (1<<1) /* F_SUM() data is undefined */
121: #define FLAG_SUM_KEEP (1<<2) /* keep entry when rewriting */
122:
123: int io_error;
124: int flist_csum_len;
125: dev_t filesystem_dev; /* used to implement -x */
126:
127: struct file_list *cur_flist, *first_flist, *dir_flist;
128: int send_dir_ndx = -1, send_dir_depth = -1;
129: int flist_cnt = 0; /* how many (non-tmp) file list objects exist */
130: int file_total = 0; /* total of all active items over all file-lists */
131: int file_old_total = 0; /* total of active items that will soon be gone */
132: int flist_eof = 0; /* all the file-lists are now known */
133: int xfer_flags_as_varint = 0;
134:
135: char tr_substitutions[256];
136:
137: #define NORMAL_NAME 0
138: #define SLASH_ENDING_NAME 1
139: #define DOTDIR_NAME 2
140: #define MISSING_NAME 3
141:
142: /* Starting from protocol version 26, we always use 64-bit ino_t and dev_t
143: * internally, even if this platform does not allow files to have 64-bit inums.
144: * The only exception is if we're on a platform with no 64-bit type at all.
145: *
146: * Because we use read_longint() to get these off the wire, if you transfer
147: * devices or (for protocols < 30) hardlinks with dev or inum > 2**32 to a
148: * machine with no 64-bit types then you will get an overflow error.
149: *
150: * Note that if you transfer devices from a 64-bit-devt machine (say, Solaris)
151: * to a 32-bit-devt machine (say, Linux-2.2/x86) then the device numbers will
152: * be truncated. But it's a kind of silly thing to do anyhow. */
153:
154: /* The tmp_* vars are used as a cache area by make_file() to store data
155: * that the sender doesn't need to remember in its file list. The data
156: * will survive just long enough to be used by send_file_entry(). */
157: static dev_t tmp_rdev;
158: #ifdef SUPPORT_HARD_LINKS
159: static int64 tmp_dev = -1, tmp_ino;
160: #endif
161: static char tmp_sum[MAX_DIGEST_LEN];
162:
163: struct file_list the_fattr_list;
164:
165: static char empty_sum[MAX_DIGEST_LEN];
166: static int flist_count_offset; /* for --delete --progress */
167: static int show_filelist_progress;
168:
169: #define REGULAR_SKIPPED(flist) ((flist)->to_redo)
170:
171: static struct csum_cache {
172: struct file_list *flist;
173: const char *dirname;
174: int checksum_matches;
175: int checksum_updates;
176: } *csum_cache = NULL;
177:
178: static struct file_list *flist_new(int flags, const char *msg);
179: static void flist_sort_and_clean(struct file_list *flist, int flags);
180: static void output_flist(struct file_list *flist);
181:
182: void init_flist(void)
183: {
184: if (DEBUG_GTE(FLIST, 4)) {
185: rprintf(FINFO, "FILE_STRUCT_LEN=%d, EXTRA_LEN=%d\n",
186: (int)FILE_STRUCT_LEN, (int)EXTRA_LEN);
187: }
188: flist_csum_len = csum_len_for_type(checksum_type, 1);
189:
190: show_filelist_progress = INFO_GTE(FLIST, 1) && xfer_dirs && !am_server && !inc_recurse;
191: }
192:
193: static void start_filelist_progress(char *kind)
194: {
195: if (quiet)
196: return;
197: rprintf(FCLIENT, "%s ... ", kind);
198: output_needs_newline = 1;
199: rflush(FINFO);
200: }
201:
202: static void emit_filelist_progress(int count)
203: {
204: if (quiet)
205: return;
206: if (output_needs_newline == 2) /* avoid a newline in the middle of this filelist-progress output */
207: output_needs_newline = 0;
208: rprintf(FCLIENT, " %d files...\r", count);
209: output_needs_newline = 2;
210: }
211:
212: static void maybe_emit_filelist_progress(int count)
213: {
214: if (INFO_GTE(FLIST, 2) && show_filelist_progress && (count % 100) == 0)
215: emit_filelist_progress(count);
216: }
217:
218: static void finish_filelist_progress(const struct file_list *flist)
219: {
220: output_needs_newline = 0;
221: if (INFO_GTE(FLIST, 2)) {
222: /* This overwrites the progress line */
223: rprintf(FINFO, "%d file%sto consider\n",
224: flist->used, flist->used == 1 ? " " : "s ");
225: } else {
226: rprintf(FINFO, "done\n");
227: }
228: }
229:
230: void show_flist_stats(void)
231: {
232: /* Nothing yet */
233: }
234:
235: /* Stat either a symlink or its referent, depending on the settings of
236: * copy_links, copy_unsafe_links, etc. Returns -1 on error, 0 on success.
237: *
238: * If path is the name of a symlink, then the linkbuf buffer (which must hold
239: * MAXPATHLEN chars) will be set to the symlink's target string.
240: *
241: * The stat structure pointed to by stp will contain information about the
242: * link or the referent as appropriate, if they exist. */
243: static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
244: {
245: #ifdef SUPPORT_LINKS
246: if (link_stat(path, stp, copy_dirlinks) < 0)
247: return -1;
248: if (S_ISLNK(stp->st_mode)) {
249: int llen = do_readlink(path, linkbuf, MAXPATHLEN - 1);
250: if (llen < 0)
251: return -1;
252: linkbuf[llen] = '\0';
253: if (copy_unsafe_links && unsafe_symlink(linkbuf, path)) {
254: if (INFO_GTE(SYMSAFE, 1)) {
255: rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
256: path, linkbuf);
257: }
258: return x_stat(path, stp, NULL);
259: }
260: if (munge_symlinks && am_sender && llen > SYMLINK_PREFIX_LEN
261: && strncmp(linkbuf, SYMLINK_PREFIX, SYMLINK_PREFIX_LEN) == 0) {
262: memmove(linkbuf, linkbuf + SYMLINK_PREFIX_LEN,
263: llen - SYMLINK_PREFIX_LEN + 1);
264: }
265: }
266: return 0;
267: #else
268: return x_stat(path, stp, NULL);
269: #endif
270: }
271:
272: int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
273: {
274: #ifdef SUPPORT_LINKS
275: if (copy_links)
276: return x_stat(path, stp, NULL);
277: if (x_lstat(path, stp, NULL) < 0)
278: return -1;
279: if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
280: STRUCT_STAT st;
281: if (x_stat(path, &st, NULL) == 0 && S_ISDIR(st.st_mode))
282: *stp = st;
283: }
284: return 0;
285: #else
286: return x_stat(path, stp, NULL);
287: #endif
288: }
289:
290: static inline int path_is_daemon_excluded(char *path, int ignore_filename)
291: {
292: if (daemon_filter_list.head) {
293: char *slash = path;
294:
295: while ((slash = strchr(slash+1, '/')) != NULL) {
296: int ret;
297: *slash = '\0';
298: ret = check_filter(&daemon_filter_list, FLOG, path, 1);
299: *slash = '/';
300: if (ret < 0) {
301: errno = ENOENT;
302: return 1;
303: }
304: }
305:
306: if (!ignore_filename
307: && check_filter(&daemon_filter_list, FLOG, path, 1) < 0) {
308: errno = ENOENT;
309: return 1;
310: }
311: }
312:
313: return 0;
314: }
315:
316: static inline int is_excluded(const char *fname, int is_dir, int filter_level)
317: {
318: return name_is_excluded(fname, is_dir ? NAME_IS_DIR : NAME_IS_FILE, filter_level);
319: }
320:
321: static int fattr_compare(struct file_struct **file1, struct file_struct **file2)
322: {
323: struct file_struct *f1 = *file1;
324: struct file_struct *f2 = *file2;
325: int64 len1 = F_LENGTH(f1), len2 = F_LENGTH(f2);
326: int diff;
327:
328: if (!f1->basename || !S_ISREG(f1->mode) || !len1) {
329: if (!f2->basename || !S_ISREG(f2->mode) || !len2)
330: return 0;
331: return 1;
332: }
333: if (!f2->basename || !S_ISREG(f2->mode) || !len2)
334: return -1;
335:
336: /* Don't use diff for values that are longer than an int. */
337: if (len1 != len2)
338: return len1 < len2 ? -1 : 1;
339:
340: if (always_checksum) {
341: diff = u_memcmp(F_SUM(f1), F_SUM(f2), flist_csum_len);
342: if (diff)
343: return diff;
344: } else if (f1->modtime != f2->modtime)
345: return f1->modtime < f2->modtime ? -1 : 1;
346:
347: diff = u_strcmp(f1->basename, f2->basename);
348: if (diff)
349: return diff;
350:
351: if (f1->dirname == f2->dirname)
352: return 0;
353: if (!f1->dirname)
354: return -1;
355: if (!f2->dirname)
356: return 1;
357: return u_strcmp(f1->dirname, f2->dirname);
358: }
359:
360: static void send_directory(int f, struct file_list *flist,
361: char *fbuf, int len, int flags);
362:
363: static const char *pathname, *orig_dir;
364: static int pathname_len;
365:
366: /* Make sure flist can hold at least flist->used + extra entries. */
367: static void flist_expand(struct file_list *flist, int extra)
368: {
369: struct file_struct **new_ptr;
370:
371: if (flist->used + extra <= flist->malloced)
372: return;
373:
374: if (flist->malloced < FLIST_START)
375: flist->malloced = FLIST_START;
376: else if (flist->malloced >= FLIST_LINEAR)
377: flist->malloced += FLIST_LINEAR;
378: else
379: flist->malloced *= 2;
380:
381: /* In case count jumped or we are starting the list
382: * with a known size just set it. */
383: if (flist->malloced < flist->used + extra)
384: flist->malloced = flist->used + extra;
385:
386: new_ptr = realloc_array(flist->files, struct file_struct *, flist->malloced);
387:
388: if (DEBUG_GTE(FLIST, 1) && flist->malloced != FLIST_START) {
389: rprintf(FCLIENT, "[%s] expand file_list pointer array to %s bytes, did%s move\n",
390: who_am_i(),
391: big_num(sizeof flist->files[0] * flist->malloced),
392: (new_ptr == flist->files) ? " not" : "");
393: }
394:
395: flist->files = new_ptr;
396: }
397:
398: static void flist_done_allocating(struct file_list *flist)
399: {
400: void *ptr = pool_boundary(flist->file_pool, 8*1024);
401: if (flist->pool_boundary == ptr)
402: flist->pool_boundary = NULL; /* list didn't use any pool memory */
403: else
404: flist->pool_boundary = ptr;
405: }
406:
407: static void checksum_filename(int slot, const char *dirname, char *fbuf)
408: {
409: if (dirname && *dirname) {
410: unsigned int len;
411: if (slot) {
412: len = strlcpy(fbuf, basis_dir[slot-1], MAXPATHLEN);
413: if (len >= MAXPATHLEN)
414: return;
415: } else
416: len = 0;
417: if (pathjoin(fbuf+len, MAXPATHLEN-len, dirname, RSYNCSUMS_FILE) >= MAXPATHLEN-len)
418: return;
419: } else
420: strlcpy(fbuf, RSYNCSUMS_FILE, MAXPATHLEN);
421: }
422:
423: static void write_checksums(int slot, struct file_list *flist, int whole_dir)
424: {
425: int i;
426: FILE *out_fp;
427: char fbuf[MAXPATHLEN];
428: int new_entries = csum_cache[slot].checksum_updates != 0;
429: int counts_match = flist->used == csum_cache[slot].checksum_matches;
430: int no_skipped = whole_dir && REGULAR_SKIPPED(flist) == 0;
431: const char *dirname = csum_cache[slot].dirname;
432:
433: flist_sort_and_clean(flist, 0);
434:
435: if (dry_run && !(checksum_files & CSF_AFFECT_DRYRUN))
436: return;
437:
438: checksum_filename(slot, dirname, fbuf);
439:
440: if (flist->high - flist->low < 0 && no_skipped) {
441: unlink(fbuf);
442: return;
443: }
444:
445: if (!new_entries && (counts_match || !whole_dir))
446: return;
447:
448: if (!(out_fp = fopen(fbuf, "w")))
449: return;
450:
451: for (i = flist->low; i <= flist->high; i++) {
452: struct file_struct *file = flist->sorted[i];
453: const char *cp = F_SUM(file);
454: const char *end = cp + flist_csum_len;
455: const char *alt_sum = file->basename + strlen(file->basename) + 1;
456: if (whole_dir && !(file->flags & FLAG_SUM_KEEP))
457: continue;
458: if (checksum_type == 5)
459: fprintf(out_fp, "%s ", alt_sum);
460: if (file->flags & FLAG_SUM_MISSING) {
461: do {
462: fputs("==", out_fp);
463: } while (++cp != end);
464: } else {
465: do {
466: fprintf(out_fp, "%02x", (int)CVAL(cp, 0));
467: } while (++cp != end);
468: }
469: if (checksum_type != 5)
470: fprintf(out_fp, " %s", alt_sum);
471: fprintf(out_fp, " %10.0f %10.0f %10lu %10lu %s\n",
472: (double)F_LENGTH(file), (double)file->modtime,
473: (long)F_CTIME(file), (long)F_INODE(file), file->basename);
474: }
475:
476: fclose(out_fp);
477: }
478:
479: void reset_checksum_cache(int whole_dir)
480: {
481: int slot, slots = am_sender ? 1 : basis_dir_cnt + 1;
482:
483: if (!csum_cache)
484: csum_cache = new_array0(struct csum_cache, slots);
485:
486: for (slot = 0; slot < slots; slot++) {
487: struct file_list *flist = csum_cache[slot].flist;
488:
489: if (flist) {
490: if (checksum_files & CSF_UPDATE && flist->next)
491: write_checksums(slot, flist, whole_dir);
492:
493: /* Reset the pool memory and empty the file-list array. */
494: pool_free_old(flist->file_pool,
495: pool_boundary(flist->file_pool, 0));
496: flist->used = 0;
497: } else
498: flist = csum_cache[slot].flist = flist_new(FLIST_TEMP, "reset_checksum_cache");
499:
500: flist->low = 0;
501: flist->high = -1;
502: flist->next = NULL;
503:
504: csum_cache[slot].checksum_matches = 0;
505: csum_cache[slot].checksum_updates = 0;
506: REGULAR_SKIPPED(flist) = 0;
507: }
508: }
509:
510: /* The basename_len count is the length of the basename + 1 for the '\0'. */
511: static int add_checksum(struct file_list *flist, const char *dirname,
512: const char *basename, int basename_len, OFF_T file_length,
513: time_t mtime, uint32 ctime, uint32 inode,
514: const char *sum, const char *alt_sum, int flags)
515: {
516: struct file_struct *file;
517: int alloc_len, extra_len;
518: char *bp;
519:
520: if (basename_len == RSYNCSUMS_LEN+1 && *basename == '.'
521: && strcmp(basename, RSYNCSUMS_FILE) == 0)
522: return 0;
523:
524: /* "2" is for a 32-bit ctime num and an 32-bit inode num. */
525: extra_len = (file_extra_cnt + (file_length > 0xFFFFFFFFu) + SUM_EXTRA_CNT + 2)
526: * EXTRA_LEN;
527: #if EXTRA_ROUNDING > 0
528: if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
529: extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
530: #endif
531: alloc_len = FILE_STRUCT_LEN + extra_len + basename_len + flist_csum_len*2 + 1;
532: bp = pool_alloc(flist->file_pool, alloc_len, "add_checksum");
533:
534: memset(bp, 0, extra_len + FILE_STRUCT_LEN);
535: bp += extra_len;
536: file = (struct file_struct *)bp;
537: bp += FILE_STRUCT_LEN;
538:
539: memcpy(bp, basename, basename_len);
540: if (alt_sum)
541: strlcpy(bp+basename_len, alt_sum, flist_csum_len*2 + 1);
542: else {
543: memset(bp+basename_len, '=', flist_csum_len*2);
544: bp[basename_len+flist_csum_len*2] = '\0';
545: }
546:
547: file->flags = flags;
548: file->mode = S_IFREG;
549: file->modtime = mtime;
550: file->len32 = (uint32)file_length;
551: if (file_length > 0xFFFFFFFFu) {
552: file->flags |= FLAG_LENGTH64;
553: OPT_EXTRA(file, 0)->unum = (uint32)(file_length >> 32);
554: }
555: file->dirname = dirname;
556: F_CTIME(file) = ctime;
557: F_INODE(file) = inode;
558: bp = F_SUM(file);
559: memcpy(bp, sum, flist_csum_len);
560:
561: flist_expand(flist, 1);
562: flist->files[flist->used++] = file;
563:
564: flist->sorted = flist->files;
565:
566: return 1;
567: }
568:
569: /* The "dirname" arg's data must remain unchanged during the lifespan of
570: * the created csum_cache[].flist object because we use it directly. */
571: static void read_checksums(int slot, struct file_list *flist, const char *dirname)
572: {
573: char line[MAXPATHLEN+1024], fbuf[MAXPATHLEN], sum[MAX_DIGEST_LEN];
574: FILE *fp;
575: char *cp;
576: time_t mtime;
577: int len, i, flags;
578: OFF_T file_length;
579: uint32 ctime, inode;
580: const char *alt_sum = NULL;
581: int dlen = dirname ? strlcpy(fbuf, dirname, sizeof fbuf) : 0;
582:
583: if (dlen >= (int)(sizeof fbuf - 1 - RSYNCSUMS_LEN))
584: return;
585: if (dlen)
586: fbuf[dlen++] = '/';
587: else
588: dirname = NULL;
589: strlcpy(fbuf+dlen, RSYNCSUMS_FILE, sizeof fbuf - dlen);
590: if (slot) {
591: pathjoin(line, sizeof line, basis_dir[slot-1], fbuf);
592: cp = line;
593: } else
594: cp = fbuf;
595: if (!(fp = fopen(cp, "r")))
596: return;
597:
598: while (fgets(line, sizeof line, fp)) {
599: cp = line;
600: if (checksum_type == 5) {
601: alt_sum = cp;
602: if (*cp == '=')
603: while (*++cp == '=') {}
604: else
605: while (isHexDigit(cp)) cp++;
606: if (cp - alt_sum != MD4_DIGEST_LEN*2 || *cp != ' ')
607: break;
608: while (*++cp == ' ') {}
609: }
610:
611: if (*cp == '=') {
612: for (i = 0; i < flist_csum_len*2; i++, cp++) {
613: if (*cp != '=') {
614: cp = "";
615: break;
616: }
617: }
618: memset(sum, 0, flist_csum_len);
619: flags = FLAG_SUM_MISSING;
620: } else {
621: for (i = 0; i < flist_csum_len*2; i++, cp++) {
622: int x;
623: if (isHexDigit(cp)) {
624: if (isDigit(cp))
625: x = *cp - '0';
626: else
627: x = (*cp & 0xF) + 9;
628: } else {
629: cp = "";
630: break;
631: }
632: if (i & 1)
633: sum[i/2] |= x;
634: else
635: sum[i/2] = x << 4;
636: }
637: flags = 0;
638: }
639: if (*cp != ' ')
640: break;
641: while (*++cp == ' ') {}
642:
643: if (checksum_type != 5) {
644: alt_sum = cp;
645: if (*cp == '=')
646: while (*++cp == '=') {}
647: else
648: while (isHexDigit(cp)) cp++;
649: if (cp - alt_sum != MD5_DIGEST_LEN*2 || *cp != ' ')
650: break;
651: while (*++cp == ' ') {}
652: }
653:
654: file_length = 0;
655: while (isDigit(cp))
656: file_length = file_length * 10 + *cp++ - '0';
657: if (*cp != ' ')
658: break;
659: while (*++cp == ' ') {}
660:
661: mtime = 0;
662: while (isDigit(cp))
663: mtime = mtime * 10 + *cp++ - '0';
664: if (*cp != ' ')
665: break;
666: while (*++cp == ' ') {}
667:
668: ctime = 0;
669: while (isDigit(cp))
670: ctime = ctime * 10 + *cp++ - '0';
671: if (*cp != ' ')
672: break;
673: while (*++cp == ' ') {}
674:
675: inode = 0;
676: while (isDigit(cp))
677: inode = inode * 10 + *cp++ - '0';
678: if (*cp != ' ')
679: break;
680: while (*++cp == ' ') {}
681:
682: len = strlen(cp);
683: while (len && (cp[len-1] == '\n' || cp[len-1] == '\r'))
684: len--;
685: if (!len)
686: break;
687: cp[len++] = '\0'; /* len now counts the null */
688: if (strchr(cp, '/'))
689: break;
690: if (len > MAXPATHLEN)
691: continue;
692:
693: strlcpy(fbuf+dlen, cp, sizeof fbuf - dlen);
694: if (is_excluded(fbuf, 0, ALL_FILTERS)) {
695: flags |= FLAG_SUM_KEEP;
696: csum_cache[slot].checksum_matches++;
697: }
698:
699: add_checksum(flist, dirname, cp, len, file_length,
700: mtime, ctime, inode,
701: sum, alt_sum, flags);
702: }
703: fclose(fp);
704:
705: flist_sort_and_clean(flist, CLEAN_KEEP_LAST);
706: }
707:
708: void set_cached_checksum(struct file_list *file_flist, struct file_struct *file)
709: {
710: int j;
711: FILE *out_fp;
712: STRUCT_STAT st;
713: char fbuf[MAXPATHLEN];
714: const char *fn = f_name(file, NULL);
715: struct file_list *flist = csum_cache[0].flist;
716:
717: if (dry_run && !(checksum_files & CSF_AFFECT_DRYRUN))
718: return;
719:
720: if (stat(fn, &st) < 0)
721: return;
722:
723: checksum_filename(0, file->dirname, fbuf);
724:
725: if (file_flist != flist->next) {
726: const char *cp = F_SUM(file);
727: const char *end = cp + flist_csum_len;
728:
729: if (!(out_fp = fopen(fbuf, "a")))
730: return;
731:
732: if (checksum_type == 5) {
733: for (j = 0; j < flist_csum_len; j++)
734: fputs("==", out_fp);
735: fputc(' ', out_fp);
736: }
737: do {
738: fprintf(out_fp, "%02x", (int)CVAL(cp, 0));
739: } while (++cp != end);
740: if (checksum_type != 5) {
741: fputc(' ', out_fp);
742: for (j = 0; j < flist_csum_len; j++)
743: fputs("==", out_fp);
744: }
745: fprintf(out_fp, " %10.0f %10.0f %10lu %10lu %s\n",
746: (double)st.st_size, (double)st.st_mtime,
747: (long)(uint32)st.st_ctime, (long)(uint32)st.st_ino,
748: file->basename);
749:
750: fclose(out_fp);
751: return;
752: }
753:
754: if ((j = flist_find(flist, file)) >= 0) {
755: struct file_struct *fp = flist->sorted[j];
756: int inc = 0;
757: if (F_LENGTH(fp) != st.st_size) {
758: fp->len32 = (uint32)st.st_size;
759: if (st.st_size > 0xFFFFFFFFu) {
760: OPT_EXTRA(fp, 0)->unum = (uint32)(st.st_size >> 32);
761: fp->flags |= FLAG_LENGTH64;
762: } else
763: fp->flags &= FLAG_LENGTH64;
764: inc = 1;
765: }
766: if (fp->modtime != st.st_mtime) {
767: fp->modtime = st.st_mtime;
768: inc = 1;
769: }
770: if (F_CTIME(fp) != (uint32)st.st_ctime) {
771: F_CTIME(fp) = (uint32)st.st_ctime;
772: inc = 1;
773: }
774: if (F_INODE(fp) != (uint32)st.st_ino) {
775: F_INODE(fp) = (uint32)st.st_ino;
776: inc = 1;
777: }
778: memcpy(F_SUM(fp), F_SUM(file), MAX_DIGEST_LEN);
779: csum_cache[0].checksum_updates += inc;
780: fp->flags &= ~FLAG_SUM_MISSING;
781: fp->flags |= FLAG_SUM_KEEP;
782: return;
783: }
784:
785: csum_cache[0].checksum_updates +=
786: add_checksum(flist, file->dirname, file->basename, strlen(file->basename) + 1,
787: st.st_size, (uint32)st.st_mtime, (uint32)st.st_ctime,
788: st.st_ino, F_SUM(file), NULL, FLAG_SUM_KEEP);
789: }
790:
791: void get_cached_checksum(int slot, const char *fname, struct file_struct *file,
792: int basename_len, STRUCT_STAT *stp, char *sum_buf)
793: {
794: struct file_list *flist = csum_cache[slot].flist;
795: int j;
796:
797: if (!flist->next) {
798: flist->next = cur_flist; /* next points from checksum flist to file flist */
799: csum_cache[slot].dirname = file->dirname;
800: read_checksums(slot, flist, file->dirname);
801: }
802:
803: if ((j = flist_find(flist, file)) >= 0) {
804: struct file_struct *fp = flist->sorted[j];
805:
806: if (F_LENGTH(fp) == stp->st_size
807: && fp->modtime == stp->st_mtime
808: && (checksum_files & CSF_LAX
809: || (F_CTIME(fp) == (uint32)stp->st_ctime
810: && F_INODE(fp) == (uint32)stp->st_ino))) {
811: if (fp->flags & FLAG_SUM_MISSING) {
812: fp->flags &= ~FLAG_SUM_MISSING;
813: csum_cache[slot].checksum_updates++;
814: file_checksum(fname, stp, sum_buf);
815: memcpy(F_SUM(fp), sum_buf, MAX_DIGEST_LEN);
816: } else {
817: csum_cache[slot].checksum_matches++;
818: memcpy(sum_buf, F_SUM(fp), MAX_DIGEST_LEN);
819: }
820: fp->flags |= FLAG_SUM_KEEP;
821: return;
822: }
823: clear_file(fp);
824: }
825:
826: file_checksum(fname, stp, sum_buf);
827:
828: if (checksum_files & CSF_UPDATE) {
829: if (basename_len < 0)
830: basename_len = strlen(file->basename) + 1;
831: csum_cache[slot].checksum_updates +=
832: add_checksum(flist, file->dirname, file->basename, basename_len,
833: stp->st_size, stp->st_mtime, (uint32)stp->st_ctime,
834: (uint32)stp->st_ino, sum_buf, NULL, FLAG_SUM_KEEP);
835: }
836: }
837:
838: /* Call this with EITHER (1) "file, NULL, 0" to chdir() to the file's
839: * F_PATHNAME(), or (2) "NULL, dir, dirlen" to chdir() to the supplied dir,
840: * with dir == NULL taken to be the starting directory, and dirlen < 0
841: * indicating that strdup(dir) should be called and then the -dirlen length
842: * value checked to ensure that it is not daemon-excluded. */
843: int change_pathname(struct file_struct *file, const char *dir, int dirlen)
844: {
845: if (dirlen < 0) {
846: char *cpy = strdup(dir);
847: if (*cpy != '/')
848: change_dir(orig_dir, CD_SKIP_CHDIR);
849: if (path_is_daemon_excluded(cpy, 0))
850: goto chdir_error;
851: dir = cpy;
852: dirlen = -dirlen;
853: } else {
854: if (file) {
855: if (pathname == F_PATHNAME(file))
856: return 1;
857: dir = F_PATHNAME(file);
858: if (dir)
859: dirlen = strlen(dir);
860: } else if (pathname == dir)
861: return 1;
862: if (dir && *dir != '/')
863: change_dir(orig_dir, CD_SKIP_CHDIR);
864: }
865:
866: pathname = dir;
867: pathname_len = dirlen;
868:
869: if (!dir)
870: dir = orig_dir;
871:
872: if (!change_dir(dir, CD_NORMAL)) {
873: chdir_error:
874: io_error |= IOERR_GENERAL;
875: rsyserr(FERROR_XFER, errno, "change_dir %s failed", full_fname(dir));
876: if (dir != orig_dir)
877: change_dir(orig_dir, CD_NORMAL);
878: pathname = NULL;
879: pathname_len = 0;
880: return 0;
881: }
882:
883: return 1;
884: }
885:
886: static void send_file_entry(int f, const char *fname, struct file_struct *file,
887: #ifdef SUPPORT_LINKS
888: const char *symlink_name, int symlink_len,
889: #endif
890: int ndx, int first_ndx)
891: {
892: static time_t modtime, atime;
893: #ifdef SUPPORT_CRTIMES
894: static time_t crtime;
895: #endif
896: static mode_t mode;
897: #ifdef SUPPORT_FILEFLAGS
898: static uint32 fileflags;
899: #endif
900: #ifdef SUPPORT_HARD_LINKS
901: static int64 dev;
902: #endif
903: static dev_t rdev;
904: static uint32 rdev_major;
905: static uid_t uid;
906: static gid_t gid;
907: static const char *user_name, *group_name;
908: static char lastname[MAXPATHLEN];
909: #ifdef SUPPORT_HARD_LINKS
910: int first_hlink_ndx = -1;
911: #endif
912: int l1, l2;
913: int xflags;
914:
915: /* Initialize starting value of xflags and adjust counts. */
916: if (S_ISREG(file->mode))
917: xflags = 0;
918: else if (S_ISDIR(file->mode)) {
919: stats.num_dirs++;
920: if (protocol_version >= 30) {
921: if (file->flags & FLAG_CONTENT_DIR)
922: xflags = file->flags & FLAG_TOP_DIR;
923: else if (file->flags & FLAG_IMPLIED_DIR)
924: xflags = XMIT_TOP_DIR | XMIT_NO_CONTENT_DIR;
925: else
926: xflags = XMIT_NO_CONTENT_DIR;
927: } else
928: xflags = file->flags & FLAG_TOP_DIR; /* FLAG_TOP_DIR == XMIT_TOP_DIR */
929: } else {
930: if (S_ISLNK(file->mode))
931: stats.num_symlinks++;
932: else if (IS_DEVICE(file->mode))
933: stats.num_devices++;
934: else if (IS_SPECIAL(file->mode))
935: stats.num_specials++;
936: xflags = 0;
937: }
938:
939: if (file->mode == mode)
940: xflags |= XMIT_SAME_MODE;
941: else
942: mode = file->mode;
943: #ifdef SUPPORT_FILEFLAGS
944: if (preserve_fileflags) {
945: if (F_FFLAGS(file) == fileflags)
946: xflags |= XMIT_SAME_FLAGS;
947: else
948: fileflags = F_FFLAGS(file);
949: }
950: #endif
951:
952: if (preserve_devices && IS_DEVICE(mode)) {
953: if (protocol_version < 28) {
954: if (tmp_rdev == rdev)
955: xflags |= XMIT_SAME_RDEV_pre28;
956: else
957: rdev = tmp_rdev;
958: } else {
959: rdev = tmp_rdev;
960: if ((uint32)major(rdev) == rdev_major)
961: xflags |= XMIT_SAME_RDEV_MAJOR;
962: else
963: rdev_major = major(rdev);
964: if (protocol_version < 30 && (uint32)minor(rdev) <= 0xFFu)
965: xflags |= XMIT_RDEV_MINOR_8_pre30;
966: }
967: } else if (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31) {
968: /* Special files don't need an rdev number, so just make
969: * the historical transmission of the value efficient. */
970: if (protocol_version < 28)
971: xflags |= XMIT_SAME_RDEV_pre28;
972: else {
973: rdev = MAKEDEV(rdev_major, 0);
974: xflags |= XMIT_SAME_RDEV_MAJOR;
975: if (protocol_version < 30)
976: xflags |= XMIT_RDEV_MINOR_8_pre30;
977: }
978: } else if (protocol_version < 28)
979: rdev = MAKEDEV(0, 0);
980: if (!preserve_uid || ((uid_t)F_OWNER(file) == uid && *lastname))
981: xflags |= XMIT_SAME_UID;
982: else {
983: uid = F_OWNER(file);
984: if (!numeric_ids) {
985: user_name = add_uid(uid);
986: if (inc_recurse && user_name)
987: xflags |= XMIT_USER_NAME_FOLLOWS;
988: }
989: }
990: if (!preserve_gid || ((gid_t)F_GROUP(file) == gid && *lastname))
991: xflags |= XMIT_SAME_GID;
992: else {
993: gid = F_GROUP(file);
994: if (!numeric_ids) {
995: group_name = add_gid(gid);
996: if (inc_recurse && group_name)
997: xflags |= XMIT_GROUP_NAME_FOLLOWS;
998: }
999: }
1000: if (file->modtime == modtime)
1001: xflags |= XMIT_SAME_TIME;
1002: else
1003: modtime = file->modtime;
1004: if (NSEC_BUMP(file) && protocol_version >= 31)
1005: xflags |= XMIT_MOD_NSEC;
1006: if (atimes_ndx && !S_ISDIR(mode)) {
1007: if (F_ATIME(file) == atime)
1008: xflags |= XMIT_SAME_ATIME;
1009: else
1010: atime = F_ATIME(file);
1011: }
1012: #ifdef SUPPORT_CRTIMES
1013: if (crtimes_ndx) {
1014: crtime = F_CRTIME(file);
1015: if (crtime == modtime)
1016: xflags |= XMIT_CRTIME_EQ_MTIME;
1017: }
1018: #endif
1019:
1020: #ifdef SUPPORT_HARD_LINKS
1021: if (tmp_dev != -1) {
1022: if (protocol_version >= 30) {
1023: struct ht_int64_node *np = idev_find(tmp_dev, tmp_ino);
1024: first_hlink_ndx = (int32)(long)np->data; /* is -1 when new */
1025: if (first_hlink_ndx < 0) {
1026: np->data = (void*)(long)(first_ndx + ndx);
1027: xflags |= XMIT_HLINK_FIRST;
1028: }
1029: if (DEBUG_GTE(HLINK, 1)) {
1030: if (first_hlink_ndx >= 0) {
1031: rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
1032: who_am_i(), first_ndx + ndx, first_hlink_ndx,
1033: first_hlink_ndx >= first_ndx ? "" : "un");
1034: } else if (DEBUG_GTE(HLINK, 3)) {
1035: rprintf(FINFO, "[%s] dev:inode for #%d is %s:%s\n",
1036: who_am_i(), first_ndx + ndx,
1037: big_num(tmp_dev), big_num(tmp_ino));
1038: }
1039: }
1040: } else {
1041: if (tmp_dev == dev) {
1042: if (protocol_version >= 28)
1043: xflags |= XMIT_SAME_DEV_pre30;
1044: } else
1045: dev = tmp_dev;
1046: }
1047: xflags |= XMIT_HLINKED;
1048: }
1049: #endif
1050:
1051: for (l1 = 0;
1052: lastname[l1] && (fname[l1] == lastname[l1]) && (l1 < 255);
1053: l1++) {}
1054: l2 = strlen(fname+l1);
1055:
1056: if (l1 > 0)
1057: xflags |= XMIT_SAME_NAME;
1058: if (l2 > 255)
1059: xflags |= XMIT_LONG_NAME;
1060:
1061: /* We must avoid sending a flag value of 0 (or an initial byte of
1062: * 0 for the older xflags protocol) or it will signal the end of
1063: * the list. Note that the use of XMIT_TOP_DIR on a non-dir has
1064: * no meaning, so it's a harmless way to add a bit to the first
1065: * flag byte. */
1066: if (xfer_flags_as_varint)
1067: write_varint(f, xflags ? xflags : XMIT_EXTENDED_FLAGS);
1068: else if (protocol_version >= 28) {
1069: if (!xflags && !S_ISDIR(mode))
1070: xflags |= XMIT_TOP_DIR;
1071: if ((xflags & 0xFF00) || !xflags) {
1072: xflags |= XMIT_EXTENDED_FLAGS;
1073: write_shortint(f, xflags);
1074: } else
1075: write_byte(f, xflags);
1076: } else {
1077: if (!(xflags & 0xFF))
1078: xflags |= S_ISDIR(mode) ? XMIT_LONG_NAME : XMIT_TOP_DIR;
1079: write_byte(f, xflags);
1080: }
1081: if (xflags & XMIT_SAME_NAME)
1082: write_byte(f, l1);
1083: if (xflags & XMIT_LONG_NAME)
1084: write_varint30(f, l2);
1085: else
1086: write_byte(f, l2);
1087: write_buf(f, fname + l1, l2);
1088:
1089: #ifdef SUPPORT_HARD_LINKS
1090: if (first_hlink_ndx >= 0) {
1091: write_varint(f, first_hlink_ndx);
1092: if (first_hlink_ndx >= first_ndx)
1093: goto the_end;
1094: }
1095: #endif
1096:
1097: write_varlong30(f, F_LENGTH(file), 3);
1098: if (!(xflags & XMIT_SAME_TIME)) {
1099: if (protocol_version >= 30)
1100: write_varlong(f, modtime, 4);
1101: else
1102: write_int(f, modtime);
1103: }
1104: if (xflags & XMIT_MOD_NSEC)
1105: write_varint(f, F_MOD_NSEC(file));
1106: #ifdef SUPPORT_CRTIMES
1107: if (crtimes_ndx && !(xflags & XMIT_CRTIME_EQ_MTIME))
1108: write_varlong(f, crtime, 4);
1109: #endif
1110: if (!(xflags & XMIT_SAME_MODE))
1111: write_int(f, to_wire_mode(mode));
1112: #ifdef SUPPORT_FILEFLAGS
1113: if (preserve_fileflags && !(xflags & XMIT_SAME_FLAGS))
1114: write_int(f, (int)fileflags);
1115: #endif
1116: if (atimes_ndx && !S_ISDIR(mode) && !(xflags & XMIT_SAME_ATIME))
1117: write_varlong(f, atime, 4);
1118: if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
1119: if (protocol_version < 30)
1120: write_int(f, uid);
1121: else {
1122: write_varint(f, uid);
1123: if (xflags & XMIT_USER_NAME_FOLLOWS) {
1124: int len = strlen(user_name);
1125: write_byte(f, len);
1126: write_buf(f, user_name, len);
1127: }
1128: }
1129: }
1130: if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
1131: if (protocol_version < 30)
1132: write_int(f, gid);
1133: else {
1134: write_varint(f, gid);
1135: if (xflags & XMIT_GROUP_NAME_FOLLOWS) {
1136: int len = strlen(group_name);
1137: write_byte(f, len);
1138: write_buf(f, group_name, len);
1139: }
1140: }
1141: }
1142: if ((preserve_devices && IS_DEVICE(mode))
1143: || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
1144: if (protocol_version < 28) {
1145: if (!(xflags & XMIT_SAME_RDEV_pre28))
1146: write_int(f, (int)rdev);
1147: } else {
1148: if (!(xflags & XMIT_SAME_RDEV_MAJOR))
1149: write_varint30(f, major(rdev));
1150: if (protocol_version >= 30)
1151: write_varint(f, minor(rdev));
1152: else if (xflags & XMIT_RDEV_MINOR_8_pre30)
1153: write_byte(f, minor(rdev));
1154: else
1155: write_int(f, minor(rdev));
1156: }
1157: }
1158:
1159: #ifdef SUPPORT_LINKS
1160: if (symlink_len) {
1161: write_varint30(f, symlink_len);
1162: write_buf(f, symlink_name, symlink_len);
1163: }
1164: #endif
1165:
1166: #ifdef SUPPORT_HARD_LINKS
1167: if (tmp_dev != -1 && protocol_version < 30) {
1168: /* Older protocols expect the dev number to be transmitted
1169: * 1-incremented so that it is never zero. */
1170: if (protocol_version < 26) {
1171: /* 32-bit dev_t and ino_t */
1172: write_int(f, (int32)(dev+1));
1173: write_int(f, (int32)tmp_ino);
1174: } else {
1175: /* 64-bit dev_t and ino_t */
1176: if (!(xflags & XMIT_SAME_DEV_pre30))
1177: write_longint(f, dev+1);
1178: write_longint(f, tmp_ino);
1179: }
1180: }
1181: #endif
1182:
1183: if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1184: const char *sum;
1185: if (S_ISREG(mode))
1186: sum = tmp_sum;
1187: else {
1188: /* Prior to 28, we sent a useless set of nulls. */
1189: sum = empty_sum;
1190: }
1191: write_buf(f, sum, flist_csum_len);
1192: }
1193:
1194: #ifdef SUPPORT_HARD_LINKS
1195: the_end:
1196: #endif
1197: strlcpy(lastname, fname, MAXPATHLEN);
1198:
1199: if (S_ISREG(mode) || S_ISLNK(mode))
1200: stats.total_size += F_LENGTH(file);
1201: }
1202:
1203: static void transliterate(char *path, int len)
1204: {
1205: while (1) {
1206: /* Find position of any char in tr_opt in path, or the end of the path. */
1207: int span = strcspn(path, tr_opt);
1208: if ((len -= span) == 0)
1209: return;
1210: path += span;
1211: if ((*path = tr_substitutions[*(uchar*)path]) == '\0')
1212: memmove(path, path+1, len--); /* copies the trailing '\0' too. */
1213: else {
1214: path++;
1215: len--;
1216: }
1217: }
1218: }
1219:
1220: static struct file_struct *recv_file_entry(int f, struct file_list *flist, int xflags)
1221: {
1222: static int64 modtime, atime;
1223: #ifdef SUPPORT_CRTIMES
1224: static time_t crtime;
1225: #endif
1226: static mode_t mode;
1227: #ifdef SUPPORT_FILEFLAGS
1228: static uint32 fileflags;
1229: #endif
1230: #ifdef SUPPORT_HARD_LINKS
1231: static int64 dev;
1232: #endif
1233: static dev_t rdev;
1234: static uint32 rdev_major;
1235: static uid_t uid;
1236: static gid_t gid;
1237: static uint16 gid_flags;
1238: static char lastname[MAXPATHLEN], *lastdir;
1239: static int lastdir_depth, lastdir_len = -1;
1240: static unsigned int del_hier_name_len = 0;
1241: static int in_del_hier = 0;
1242: char thisname[MAXPATHLEN];
1243: unsigned int l1 = 0, l2 = 0;
1244: int alloc_len, basename_len, linkname_len;
1245: int extra_len = file_extra_cnt * EXTRA_LEN;
1246: int first_hlink_ndx = -1;
1247: int64 file_length;
1248: #ifdef CAN_SET_NSEC
1249: uint32 modtime_nsec;
1250: #endif
1251: const char *basename;
1252: struct file_struct *file;
1253: alloc_pool_t *pool;
1254: char *bp;
1255:
1256: if (xflags & XMIT_SAME_NAME)
1257: l1 = read_byte(f);
1258:
1259: if (xflags & XMIT_LONG_NAME)
1260: l2 = read_varint30(f);
1261: else
1262: l2 = read_byte(f);
1263:
1264: if (l2 >= MAXPATHLEN - l1) {
1265: rprintf(FERROR,
1266: "overflow: xflags=0x%x l1=%d l2=%d lastname=%s [%s]\n",
1267: xflags, l1, l2, lastname, who_am_i());
1268: overflow_exit("recv_file_entry");
1269: }
1270:
1271: strlcpy(thisname, lastname, l1 + 1);
1272: read_sbuf(f, &thisname[l1], l2);
1273: thisname[l1 + l2] = 0;
1274:
1275: /* Abuse basename_len for a moment... */
1276: basename_len = strlcpy(lastname, thisname, MAXPATHLEN);
1277:
1278: #ifdef ICONV_OPTION
1279: if (ic_recv != (iconv_t)-1) {
1280: xbuf outbuf, inbuf;
1281:
1282: INIT_CONST_XBUF(outbuf, thisname);
1283: INIT_XBUF(inbuf, lastname, basename_len, (size_t)-1);
1284:
1285: if (iconvbufs(ic_recv, &inbuf, &outbuf, ICB_INIT) < 0) {
1286: io_error |= IOERR_GENERAL;
1287: rprintf(FERROR_UTF8,
1288: "[%s] cannot convert filename: %s (%s)\n",
1289: who_am_i(), lastname, strerror(errno));
1290: outbuf.len = 0;
1291: }
1292: thisname[outbuf.len] = '\0';
1293: basename_len = outbuf.len;
1294: }
1295: #endif
1296:
1297: if (tr_opt)
1298: transliterate(thisname, basename_len);
1299:
1300: if (*thisname
1301: && (clean_fname(thisname, CFN_REFUSE_DOT_DOT_DIRS) < 0 || (!relative_paths && *thisname == '/'))) {
1302: rprintf(FERROR, "ABORTING due to unsafe pathname from sender: %s\n", thisname);
1303: exit_cleanup(RERR_PROTOCOL);
1304: }
1305:
1306: if (sanitize_paths)
1307: sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1308:
1309: if ((basename = strrchr(thisname, '/')) != NULL) {
1310: int len = basename++ - thisname;
1311: if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1312: lastdir = new_array(char, len + 1);
1313: memcpy(lastdir, thisname, len);
1314: lastdir[len] = '\0';
1315: lastdir_len = len;
1316: lastdir_depth = count_dir_elements(lastdir);
1317: }
1318: } else
1319: basename = thisname;
1320: basename_len = strlen(basename) + 1; /* count the '\0' */
1321:
1322: #ifdef SUPPORT_HARD_LINKS
1323: if (protocol_version >= 30
1324: && BITS_SETnUNSET(xflags, XMIT_HLINKED, XMIT_HLINK_FIRST)) {
1325: first_hlink_ndx = read_varint(f);
1326: if (first_hlink_ndx < 0 || first_hlink_ndx >= flist->ndx_start + flist->used) {
1327: rprintf(FERROR,
1328: "hard-link reference out of range: %d (%d)\n",
1329: first_hlink_ndx, flist->ndx_start + flist->used);
1330: exit_cleanup(RERR_PROTOCOL);
1331: }
1332: if (DEBUG_GTE(HLINK, 1)) {
1333: rprintf(FINFO, "[%s] #%d hard-links #%d (%sabbrev)\n",
1334: who_am_i(), flist->used+flist->ndx_start, first_hlink_ndx,
1335: first_hlink_ndx >= flist->ndx_start ? "" : "un");
1336: }
1337: if (first_hlink_ndx >= flist->ndx_start) {
1338: struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1339: file_length = F_LENGTH(first);
1340: modtime = first->modtime;
1341: #ifdef CAN_SET_NSEC
1342: modtime_nsec = F_MOD_NSEC_or_0(first);
1343: #endif
1344: mode = first->mode;
1345: if (atimes_ndx && !S_ISDIR(mode))
1346: atime = F_ATIME(first);
1347: #ifdef SUPPORT_CRTIMES
1348: if (crtimes_ndx)
1349: crtime = F_CRTIME(first);
1350: #endif
1351: #ifdef SUPPORT_FILEFLAGS
1352: if (preserve_fileflags)
1353: fileflags = F_FFLAGS(first);
1354: #endif
1355: if (preserve_uid)
1356: uid = F_OWNER(first);
1357: if (preserve_gid)
1358: gid = F_GROUP(first);
1359: if (preserve_devices && IS_DEVICE(mode)) {
1360: uint32 *devp = F_RDEV_P(first);
1361: rdev_major = DEV_MAJOR(devp);
1362: rdev = MAKEDEV(rdev_major, DEV_MINOR(devp));
1363: extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
1364: }
1365: if (preserve_links && S_ISLNK(mode))
1366: linkname_len = strlen(F_SYMLINK(first)) + 1;
1367: else
1368: linkname_len = 0;
1369: goto create_object;
1370: }
1371: }
1372: #endif
1373:
1374: file_length = read_varlong30(f, 3);
1375: if (!(xflags & XMIT_SAME_TIME)) {
1376: if (protocol_version >= 30) {
1377: modtime = read_varlong(f, 4);
1378: #if SIZEOF_TIME_T < SIZEOF_INT64
1379: if (!am_generator && (int64)(time_t)modtime != modtime) {
1380: rprintf(FERROR_XFER,
1381: "Time value of %s truncated on receiver.\n",
1382: lastname);
1383: }
1384: #endif
1385: } else
1386: modtime = read_int(f);
1387: }
1388: if (xflags & XMIT_MOD_NSEC)
1389: #ifndef CAN_SET_NSEC
1390: (void)read_varint(f);
1391: #else
1392: modtime_nsec = read_varint(f);
1393: else
1394: modtime_nsec = 0;
1395: #endif
1396: #ifdef SUPPORT_CRTIMES
1397: if (crtimes_ndx) {
1398: if (xflags & XMIT_CRTIME_EQ_MTIME)
1399: crtime = modtime;
1400: else
1401: crtime = read_varlong(f, 4);
1402: #if SIZEOF_TIME_T < SIZEOF_INT64
1403: if (!am_generator && (int64)(time_t)crtime != crtime) {
1404: rprintf(FERROR_XFER,
1405: "Create time value of %s truncated on receiver.\n",
1406: lastname);
1407: }
1408: #endif
1409: }
1410: #endif
1411: if (!(xflags & XMIT_SAME_MODE))
1412: mode = from_wire_mode(read_int(f));
1413: if (atimes_ndx && !S_ISDIR(mode) && !(xflags & XMIT_SAME_ATIME)) {
1414: atime = read_varlong(f, 4);
1415: #if SIZEOF_TIME_T < SIZEOF_INT64
1416: if (!am_generator && (int64)(time_t)atime != atime) {
1417: rprintf(FERROR_XFER,
1418: "Access time value of %s truncated on receiver.\n",
1419: lastname);
1420: }
1421: #endif
1422: }
1423:
1424: if (chmod_modes && !S_ISLNK(mode) && mode)
1425: mode = tweak_mode(mode, chmod_modes);
1426: #ifdef SUPPORT_FILEFLAGS
1427: if (preserve_fileflags && !(xflags & XMIT_SAME_FLAGS))
1428: fileflags = (uint32)read_int(f);
1429: #endif
1430:
1431: if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
1432: if (protocol_version < 30)
1433: uid = (uid_t)read_int(f);
1434: else {
1435: uid = (uid_t)read_varint(f);
1436: if (xflags & XMIT_USER_NAME_FOLLOWS)
1437: uid = recv_user_name(f, uid);
1438: else if (inc_recurse && am_root && (!numeric_ids || usermap))
1439: uid = match_uid(uid);
1440: }
1441: }
1442: if (preserve_gid && !(xflags & XMIT_SAME_GID)) {
1443: if (protocol_version < 30)
1444: gid = (gid_t)read_int(f);
1445: else {
1446: gid = (gid_t)read_varint(f);
1447: gid_flags = 0;
1448: if (xflags & XMIT_GROUP_NAME_FOLLOWS)
1449: gid = recv_group_name(f, gid, &gid_flags);
1450: else if (inc_recurse && (!am_root || !numeric_ids || groupmap))
1451: gid = match_gid(gid, &gid_flags);
1452: }
1453: }
1454:
1455: if ((preserve_devices && IS_DEVICE(mode))
1456: || (preserve_specials && IS_SPECIAL(mode) && protocol_version < 31)) {
1457: if (protocol_version < 28) {
1458: if (!(xflags & XMIT_SAME_RDEV_pre28))
1459: rdev = (dev_t)read_int(f);
1460: } else {
1461: uint32 rdev_minor;
1462: if (!(xflags & XMIT_SAME_RDEV_MAJOR))
1463: rdev_major = read_varint30(f);
1464: if (protocol_version >= 30)
1465: rdev_minor = read_varint(f);
1466: else if (xflags & XMIT_RDEV_MINOR_8_pre30)
1467: rdev_minor = read_byte(f);
1468: else
1469: rdev_minor = read_int(f);
1470: rdev = MAKEDEV(rdev_major, rdev_minor);
1471: }
1472: if (IS_DEVICE(mode))
1473: extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
1474: file_length = 0;
1475: } else if (protocol_version < 28)
1476: rdev = MAKEDEV(0, 0);
1477:
1478: #ifdef SUPPORT_LINKS
1479: if (preserve_links && S_ISLNK(mode)) {
1480: linkname_len = read_varint30(f) + 1; /* count the '\0' */
1481: if (linkname_len <= 0 || linkname_len > MAXPATHLEN) {
1482: rprintf(FERROR, "overflow: linkname_len=%d\n",
1483: linkname_len - 1);
1484: overflow_exit("recv_file_entry");
1485: }
1486: #ifdef ICONV_OPTION
1487: /* We don't know how much extra room we need to convert
1488: * the as-yet-unread symlink data, so let's hope that a
1489: * double-size buffer is plenty. */
1490: if (sender_symlink_iconv)
1491: linkname_len *= 2;
1492: #endif
1493: if (munge_symlinks)
1494: linkname_len += SYMLINK_PREFIX_LEN;
1495: }
1496: else
1497: #endif
1498: linkname_len = 0;
1499:
1500: #ifdef SUPPORT_HARD_LINKS
1501: create_object:
1502: if (preserve_hard_links) {
1503: if (protocol_version < 28 && S_ISREG(mode))
1504: xflags |= XMIT_HLINKED;
1505: if (xflags & XMIT_HLINKED)
1506: extra_len += (inc_recurse+1) * EXTRA_LEN;
1507: }
1508: #endif
1509:
1510: #ifdef SUPPORT_ACLS
1511: /* Directories need an extra int32 for the default ACL. */
1512: if (preserve_acls && S_ISDIR(mode))
1513: extra_len += EXTRA_LEN;
1514: #endif
1515:
1516: if (always_checksum && S_ISREG(mode))
1517: extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
1518:
1519: #if SIZEOF_INT64 >= 8
1520: if (file_length > 0xFFFFFFFFu && S_ISREG(mode))
1521: extra_len += EXTRA_LEN;
1522: #endif
1523: #ifdef CAN_SET_NSEC
1524: if (modtime_nsec)
1525: extra_len += EXTRA_LEN;
1526: #endif
1527: if (file_length < 0) {
1528: rprintf(FERROR, "Offset underflow: file-length is negative\n");
1529: exit_cleanup(RERR_UNSUPPORTED);
1530: }
1531:
1532: if (inc_recurse && S_ISDIR(mode)) {
1533: if (one_file_system) {
1534: /* Room to save the dir's device for -x */
1535: extra_len += DEV_EXTRA_CNT * EXTRA_LEN;
1536: }
1537: pool = dir_flist->file_pool;
1538: } else
1539: pool = flist->file_pool;
1540:
1541: #if EXTRA_ROUNDING > 0
1542: if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1543: extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1544: #endif
1545:
1546: alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1547: + linkname_len;
1548: bp = pool_alloc(pool, alloc_len, "recv_file_entry");
1549:
1550: memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1551: bp += extra_len;
1552: file = (struct file_struct *)bp;
1553: bp += FILE_STRUCT_LEN;
1554:
1555: memcpy(bp, basename, basename_len);
1556:
1557: #ifdef SUPPORT_HARD_LINKS
1558: if (xflags & XMIT_HLINKED
1559: #ifndef CAN_HARDLINK_SYMLINK
1560: && !S_ISLNK(mode)
1561: #endif
1562: #ifndef CAN_HARDLINK_SPECIAL
1563: && !IS_SPECIAL(mode) && !IS_DEVICE(mode)
1564: #endif
1565: )
1566: file->flags |= FLAG_HLINKED;
1567: #endif
1568: file->modtime = (time_t)modtime;
1569: #ifdef CAN_SET_NSEC
1570: if (modtime_nsec) {
1571: file->flags |= FLAG_MOD_NSEC;
1572: F_MOD_NSEC(file) = modtime_nsec;
1573: }
1574: #endif
1575: file->len32 = (uint32)file_length;
1576: #if SIZEOF_INT64 >= 8
1577: if (file_length > 0xFFFFFFFFu && S_ISREG(mode)) {
1578: #if SIZEOF_CAPITAL_OFF_T < 8
1579: rprintf(FERROR, "Offset overflow: attempted 64-bit file-length\n");
1580: exit_cleanup(RERR_UNSUPPORTED);
1581: #else
1582: file->flags |= FLAG_LENGTH64;
1583: F_HIGH_LEN(file) = (uint32)(file_length >> 32);
1584: #endif
1585: }
1586: #endif
1587: file->mode = mode;
1588: #ifdef SUPPORT_FILEFLAGS
1589: if (preserve_fileflags)
1590: F_FFLAGS(file) = fileflags;
1591: #endif
1592: if (preserve_uid)
1593: F_OWNER(file) = uid;
1594: if (preserve_gid) {
1595: F_GROUP(file) = gid;
1596: file->flags |= gid_flags;
1597: }
1598: if (atimes_ndx && !S_ISDIR(mode))
1599: F_ATIME(file) = atime;
1600: #ifdef SUPPORT_CRTIMES
1601: if (crtimes_ndx)
1602: F_CRTIME(file) = crtime;
1603: #endif
1604: if (unsort_ndx)
1605: F_NDX(file) = flist->used + flist->ndx_start;
1606:
1607: if (basename != thisname) {
1608: file->dirname = lastdir;
1609: F_DEPTH(file) = lastdir_depth + 1;
1610: } else
1611: F_DEPTH(file) = 1;
1612:
1613: if (S_ISDIR(mode)) {
1614: if (basename_len == 1+1 && *basename == '.') /* +1 for '\0' */
1615: F_DEPTH(file)--;
1616: if (protocol_version >= 30) {
1617: if (!(xflags & XMIT_NO_CONTENT_DIR)) {
1618: if (xflags & XMIT_TOP_DIR)
1619: file->flags |= FLAG_TOP_DIR;
1620: file->flags |= FLAG_CONTENT_DIR;
1621: } else if (xflags & XMIT_TOP_DIR)
1622: file->flags |= FLAG_IMPLIED_DIR;
1623: } else if (xflags & XMIT_TOP_DIR) {
1624: in_del_hier = recurse;
1625: del_hier_name_len = F_DEPTH(file) == 0 ? 0 : l1 + l2;
1626: if (relative_paths && del_hier_name_len > 2
1627: && lastname[del_hier_name_len-1] == '.'
1628: && lastname[del_hier_name_len-2] == '/')
1629: del_hier_name_len -= 2;
1630: file->flags |= FLAG_TOP_DIR | FLAG_CONTENT_DIR;
1631: } else if (in_del_hier) {
1632: if (!relative_paths || !del_hier_name_len
1633: || (l1 >= del_hier_name_len
1634: && lastname[del_hier_name_len] == '/'))
1635: file->flags |= FLAG_CONTENT_DIR;
1636: else
1637: in_del_hier = 0;
1638: }
1639: }
1640:
1641: if (preserve_devices && IS_DEVICE(mode)) {
1642: uint32 *devp = F_RDEV_P(file);
1643: DEV_MAJOR(devp) = major(rdev);
1644: DEV_MINOR(devp) = minor(rdev);
1645: }
1646:
1647: #ifdef SUPPORT_LINKS
1648: if (linkname_len) {
1649: bp += basename_len;
1650: if (first_hlink_ndx >= flist->ndx_start) {
1651: struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1652: memcpy(bp, F_SYMLINK(first), linkname_len);
1653: } else {
1654: if (munge_symlinks) {
1655: strlcpy(bp, SYMLINK_PREFIX, linkname_len);
1656: bp += SYMLINK_PREFIX_LEN;
1657: linkname_len -= SYMLINK_PREFIX_LEN;
1658: }
1659: #ifdef ICONV_OPTION
1660: if (sender_symlink_iconv) {
1661: xbuf outbuf, inbuf;
1662:
1663: alloc_len = linkname_len;
1664: linkname_len /= 2;
1665:
1666: /* Read the symlink data into the end of our double-sized
1667: * buffer and then convert it into the right spot. */
1668: INIT_XBUF(inbuf, bp + alloc_len - linkname_len,
1669: linkname_len - 1, (size_t)-1);
1670: read_sbuf(f, inbuf.buf, inbuf.len);
1671: INIT_XBUF(outbuf, bp, 0, alloc_len);
1672:
1673: if (iconvbufs(ic_recv, &inbuf, &outbuf, ICB_INIT) < 0) {
1674: io_error |= IOERR_GENERAL;
1675: rprintf(FERROR_XFER,
1676: "[%s] cannot convert symlink data for: %s (%s)\n",
1677: who_am_i(), full_fname(thisname), strerror(errno));
1678: bp = (char*)file->basename;
1679: *bp++ = '\0';
1680: outbuf.len = 0;
1681: }
1682: bp[outbuf.len] = '\0';
1683: } else
1684: #endif
1685: read_sbuf(f, bp, linkname_len - 1);
1686: if (sanitize_paths && !munge_symlinks && *bp)
1687: sanitize_path(bp, bp, "", lastdir_depth, SP_DEFAULT);
1688: }
1689: }
1690: #endif
1691:
1692: #ifdef SUPPORT_HARD_LINKS
1693: if (preserve_hard_links && xflags & XMIT_HLINKED) {
1694: if (protocol_version >= 30) {
1695: if (xflags & XMIT_HLINK_FIRST) {
1696: F_HL_GNUM(file) = flist->ndx_start + flist->used;
1697: } else
1698: F_HL_GNUM(file) = first_hlink_ndx;
1699: } else {
1700: static int32 cnt = 0;
1701: struct ht_int64_node *np;
1702: int64 ino;
1703: int32 ndx;
1704: if (protocol_version < 26) {
1705: dev = read_int(f);
1706: ino = read_int(f);
1707: } else {
1708: if (!(xflags & XMIT_SAME_DEV_pre30))
1709: dev = read_longint(f);
1710: ino = read_longint(f);
1711: }
1712: np = idev_find(dev, ino);
1713: ndx = (int32)(long)np->data; /* is -1 when new */
1714: if (ndx < 0) {
1715: np->data = (void*)(long)cnt;
1716: ndx = cnt++;
1717: }
1718: F_HL_GNUM(file) = ndx;
1719: }
1720: }
1721: #endif
1722:
1723: if (always_checksum && (S_ISREG(mode) || protocol_version < 28)) {
1724: if (S_ISREG(mode))
1725: bp = F_SUM(file);
1726: else {
1727: /* Prior to 28, we get a useless set of nulls. */
1728: bp = tmp_sum;
1729: }
1730: if (first_hlink_ndx >= flist->ndx_start) {
1731: struct file_struct *first = flist->files[first_hlink_ndx - flist->ndx_start];
1732: memcpy(bp, F_SUM(first), flist_csum_len);
1733: } else
1734: read_buf(f, bp, flist_csum_len);
1735: }
1736:
1737: #ifdef SUPPORT_ACLS
1738: if (preserve_acls && !S_ISLNK(mode))
1739: receive_acl(f, file);
1740: #endif
1741: #ifdef SUPPORT_XATTRS
1742: if (preserve_xattrs)
1743: receive_xattr(f, file);
1744: #endif
1745:
1746: if (S_ISREG(mode) || S_ISLNK(mode))
1747: stats.total_size += file_length;
1748:
1749: return file;
1750: }
1751:
1752: /* Create a file_struct for a named file by reading its stat() information
1753: * and performing extensive checks against global options.
1754: *
1755: * Returns a pointer to the new file struct, or NULL if there was an error
1756: * or this file should be excluded.
1757: *
1758: * Note: Any error (here or in send_file_name) that results in the omission of
1759: * an existent source file from the file list should set
1760: * "io_error |= IOERR_GENERAL" to avoid deletion of the file from the
1761: * destination if --delete is on. */
1762: struct file_struct *make_file(const char *fname, struct file_list *flist,
1763: STRUCT_STAT *stp, int flags, int filter_level)
1764: {
1765: static char *lastdir;
1766: static int lastdir_len = -2;
1767: struct file_struct *file;
1768: char thisname[MAXPATHLEN];
1769: char linkname[MAXPATHLEN];
1770: int alloc_len, basename_len, linkname_len;
1771: int extra_len = file_extra_cnt * EXTRA_LEN;
1772: const char *basename;
1773: alloc_pool_t *pool;
1774: STRUCT_STAT st;
1775: char *bp;
1776:
1777: if (strlcpy(thisname, fname, sizeof thisname) >= sizeof thisname) {
1778: io_error |= IOERR_GENERAL;
1779: rprintf(FERROR_XFER, "skipping overly long name: %s\n", fname);
1780: return NULL;
1781: }
1782: clean_fname(thisname, 0);
1783: if (sanitize_paths)
1784: sanitize_path(thisname, thisname, "", 0, SP_DEFAULT);
1785:
1786: if (stp && (S_ISDIR(stp->st_mode) || IS_MISSING_FILE(*stp))) {
1787: /* This is needed to handle a "symlink/." with a --relative
1788: * dir, or a request to delete a specific file. */
1789: st = *stp;
1790: *linkname = '\0'; /* make IBM code checker happy */
1791: } else if (readlink_stat(thisname, &st, linkname) != 0) {
1792: int save_errno = errno;
1793: /* See if file is excluded before reporting an error. */
1794: if (filter_level != NO_FILTERS && filter_level != ALL_FILTERS_NO_EXCLUDE
1795: && (is_excluded(thisname, 0, filter_level)
1796: || is_excluded(thisname, 1, filter_level))) {
1797: if (ignore_perishable && save_errno != ENOENT)
1798: non_perishable_cnt++;
1799: return NULL;
1800: }
1801: if (save_errno == ENOENT) {
1802: #ifdef SUPPORT_LINKS
1803: /* When our options tell us to follow a symlink that
1804: * points nowhere, tell the user about the symlink
1805: * instead of giving a "vanished" message. We only
1806: * dereference a symlink if one of the --copy*links
1807: * options was specified, so there's no need for the
1808: * extra lstat() if one of these options isn't on. */
1809: if ((copy_links || copy_unsafe_links || copy_dirlinks)
1810: && x_lstat(thisname, &st, NULL) == 0
1811: && S_ISLNK(st.st_mode)) {
1812: io_error |= IOERR_GENERAL;
1813: rprintf(FERROR_XFER, "symlink has no referent: %s\n",
1814: full_fname(thisname));
1815: } else
1816: #endif
1817: {
1818: enum logcode c = am_daemon && protocol_version < 28
1819: ? FERROR : FWARNING;
1820: io_error |= IOERR_VANISHED;
1821: rprintf(c, "file has vanished: %s\n",
1822: full_fname(thisname));
1823: }
1824: } else {
1825: io_error |= IOERR_GENERAL;
1826: rsyserr(FERROR_XFER, save_errno, "readlink_stat(%s) failed",
1827: full_fname(thisname));
1828: }
1829: return NULL;
1830: } else if (IS_MISSING_FILE(st)) {
1831: io_error |= IOERR_GENERAL;
1832: rprintf(FINFO, "skipping file with bogus (zero) st_mode: %s\n",
1833: full_fname(thisname));
1834: return NULL;
1835: }
1836:
1837: if (filter_level == NO_FILTERS)
1838: goto skip_filters;
1839: if (filter_level == ALL_FILTERS_NO_EXCLUDE) {
1840: /* Call only for the side effect of setting last_hit_filter_rule to
1841: * any operative include filter, which might affect attributes. */
1842: is_excluded(thisname, S_ISDIR(st.st_mode) != 0, ALL_FILTERS);
1843: goto skip_filters;
1844: }
1845:
1846: if (S_ISDIR(st.st_mode)) {
1847: if (!xfer_dirs) {
1848: rprintf(FINFO, "skipping directory %s\n", thisname);
1849: return NULL;
1850: }
1851: /* -x only affects dirs because we need to avoid recursing
1852: * into a mount-point directory, not to avoid copying a
1853: * symlinked file if -L (or similar) was specified. */
1854: if (one_file_system && st.st_dev != filesystem_dev
1855: && BITS_SETnUNSET(flags, FLAG_CONTENT_DIR, FLAG_TOP_DIR)) {
1856: if (one_file_system > 1) {
1857: if (INFO_GTE(MOUNT, 1)) {
1858: rprintf(FINFO,
1859: "[%s] skipping mount-point dir %s\n",
1860: who_am_i(), thisname);
1861: }
1862: return NULL;
1863: }
1864: flags |= FLAG_MOUNT_DIR;
1865: flags &= ~FLAG_CONTENT_DIR;
1866: }
1867: } else
1868: flags &= ~FLAG_CONTENT_DIR;
1869:
1870: if (is_excluded(thisname, S_ISDIR(st.st_mode) != 0, filter_level)) {
1871: if (ignore_perishable)
1872: non_perishable_cnt++;
1873: if (S_ISREG(st.st_mode))
1874: REGULAR_SKIPPED(flist)++;
1875: return NULL;
1876: }
1877:
1878: if (lp_ignore_nonreadable(module_id)) {
1879: #ifdef SUPPORT_LINKS
1880: if (!S_ISLNK(st.st_mode))
1881: #endif
1882: if (access(thisname, R_OK) != 0)
1883: return NULL;
1884: }
1885:
1886: skip_filters:
1887:
1888: /* Only divert a directory in the main transfer. */
1889: if (flist) {
1890: if (flist->prev && S_ISDIR(st.st_mode)
1891: && flags & FLAG_DIVERT_DIRS) {
1892: /* Room for parent/sibling/next-child info. */
1893: extra_len += DIRNODE_EXTRA_CNT * EXTRA_LEN;
1894: if (relative_paths)
1895: extra_len += PTR_EXTRA_CNT * EXTRA_LEN;
1896: pool = dir_flist->file_pool;
1897: } else
1898: pool = flist->file_pool;
1899: } else {
1900: #ifdef SUPPORT_ACLS
1901: /* Directories need an extra int32 for the default ACL. */
1902: if (preserve_acls && S_ISDIR(st.st_mode))
1903: extra_len += EXTRA_LEN;
1904: #endif
1905: pool = NULL;
1906: }
1907:
1908: if (DEBUG_GTE(FLIST, 2)) {
1909: rprintf(FINFO, "[%s] make_file(%s,*,%d)\n",
1910: who_am_i(), thisname, filter_level);
1911: }
1912:
1913: if ((basename = strrchr(thisname, '/')) != NULL) {
1914: int len = basename++ - thisname;
1915: if (len != lastdir_len || memcmp(thisname, lastdir, len) != 0) {
1916: lastdir = new_array(char, len + 1);
1917: memcpy(lastdir, thisname, len);
1918: lastdir[len] = '\0';
1919: lastdir_len = len;
1920: if (checksum_files && am_sender && flist)
1921: reset_checksum_cache(0);
1922: }
1923: } else {
1924: basename = thisname;
1925: if (checksum_files && am_sender && flist && lastdir_len == -2) {
1926: lastdir_len = -1;
1927: reset_checksum_cache(0);
1928: }
1929: }
1930: basename_len = strlen(basename) + 1; /* count the '\0' */
1931:
1932: #ifdef SUPPORT_LINKS
1933: linkname_len = S_ISLNK(st.st_mode) ? strlen(linkname) + 1 : 0;
1934: #else
1935: linkname_len = 0;
1936: #endif
1937:
1938: #ifdef ST_MTIME_NSEC
1939: if (st.ST_MTIME_NSEC && protocol_version >= 31)
1940: extra_len += EXTRA_LEN;
1941: #endif
1942: #if SIZEOF_CAPITAL_OFF_T >= 8
1943: if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode))
1944: extra_len += EXTRA_LEN;
1945: #endif
1946:
1947: if (sender_keeps_checksum && S_ISREG(st.st_mode))
1948: extra_len += SUM_EXTRA_CNT * EXTRA_LEN;
1949:
1950: #if EXTRA_ROUNDING > 0
1951: if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN))
1952: extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN;
1953: #endif
1954:
1955: alloc_len = FILE_STRUCT_LEN + extra_len + basename_len
1956: + linkname_len;
1957: if (pool)
1958: bp = pool_alloc(pool, alloc_len, "make_file");
1959: else
1960: bp = new_array(char, alloc_len);
1961:
1962: memset(bp, 0, extra_len + FILE_STRUCT_LEN);
1963: bp += extra_len;
1964: file = (struct file_struct *)bp;
1965: bp += FILE_STRUCT_LEN;
1966:
1967: memcpy(bp, basename, basename_len);
1968:
1969: #ifdef SUPPORT_HARD_LINKS
1970: if (preserve_hard_links && flist && flist->prev) {
1971: if (protocol_version >= 28
1972: ? (!S_ISDIR(st.st_mode) && st.st_nlink > 1)
1973: : S_ISREG(st.st_mode)) {
1974: tmp_dev = (int64)st.st_dev;
1975: tmp_ino = (int64)st.st_ino;
1976: } else
1977: tmp_dev = -1;
1978: }
1979: #endif
1980:
1981: #ifdef HAVE_STRUCT_STAT_ST_RDEV
1982: if (IS_DEVICE(st.st_mode)) {
1983: tmp_rdev = st.st_rdev;
1984: st.st_size = 0;
1985: } else if (IS_SPECIAL(st.st_mode))
1986: st.st_size = 0;
1987: #endif
1988:
1989: file->flags = flags;
1990: file->modtime = st.st_mtime;
1991: #ifdef ST_MTIME_NSEC
1992: if (st.ST_MTIME_NSEC && protocol_version >= 31) {
1993: file->flags |= FLAG_MOD_NSEC;
1994: F_MOD_NSEC(file) = st.ST_MTIME_NSEC;
1995: }
1996: #endif
1997: file->len32 = (uint32)st.st_size;
1998: #if SIZEOF_CAPITAL_OFF_T >= 8
1999: if (st.st_size > 0xFFFFFFFFu && S_ISREG(st.st_mode)) {
2000: file->flags |= FLAG_LENGTH64;
2001: F_HIGH_LEN(file) = (uint32)(st.st_size >> 32);
2002: }
2003: #endif
2004: file->mode = st.st_mode;
2005: #if defined SUPPORT_FILEFLAGS || defined SUPPORT_FORCE_CHANGE
2006: if (fileflags_ndx)
2007: F_FFLAGS(file) = st.st_flags;
2008: #endif
2009: if (preserve_uid)
2010: F_OWNER(file) = st.st_uid;
2011: if (preserve_gid)
2012: F_GROUP(file) = st.st_gid;
2013: if (am_generator && st.st_uid == our_uid)
2014: file->flags |= FLAG_OWNED_BY_US;
2015: if (atimes_ndx && !S_ISDIR(file->mode))
2016: F_ATIME(file) = st.st_atime;
2017: #ifdef SUPPORT_CRTIMES
2018: if (crtimes_ndx)
2019: F_CRTIME(file) = get_create_time(fname);
2020: #endif
2021:
2022: if (basename != thisname)
2023: file->dirname = lastdir;
2024:
2025: #ifdef SUPPORT_LINKS
2026: if (linkname_len)
2027: memcpy(bp + basename_len, linkname, linkname_len);
2028: #endif
2029:
2030: if (am_sender)
2031: F_PATHNAME(file) = pathname;
2032: else if (!pool)
2033: F_DEPTH(file) = extra_len / EXTRA_LEN;
2034:
2035: if (basename_len == 0+1) {
2036: if (!pool)
2037: unmake_file(file);
2038: return NULL;
2039: }
2040:
2041: if (always_checksum && am_sender && S_ISREG(st.st_mode)) {
2042: if (flist && checksum_files)
2043: get_cached_checksum(0, thisname, file, basename_len, &st, tmp_sum);
2044: else
2045: file_checksum(thisname, &st, tmp_sum);
2046: if (sender_keeps_checksum)
2047: memcpy(F_SUM(file), tmp_sum, flist_csum_len);
2048: }
2049:
2050: if (unsort_ndx)
2051: F_NDX(file) = stats.num_dirs;
2052:
2053: return file;
2054: }
2055:
2056: OFF_T get_device_size(int fd, const char *fname)
2057: {
2058: OFF_T off = lseek(fd, 0, SEEK_END);
2059:
2060: if (off == (OFF_T) -1) {
2061: rsyserr(FERROR, errno, "failed to get device size via seek: %s", fname);
2062: return 0;
2063: }
2064: if (lseek(fd, 0, SEEK_SET) != 0)
2065: rsyserr(FERROR, errno, "failed to seek device back to start: %s", fname);
2066:
2067: return off;
2068: }
2069:
2070: /* Only called for temporary file_struct entries created by make_file(). */
2071: void unmake_file(struct file_struct *file)
2072: {
2073: free(REQ_EXTRA(file, F_DEPTH(file)));
2074: }
2075:
2076: static struct file_struct *send_file_name(int f, struct file_list *flist,
2077: const char *fname, STRUCT_STAT *stp,
2078: int flags, int filter_level)
2079: {
2080: struct file_struct *file;
2081: BOOL can_tweak_mode;
2082:
2083: file = make_file(fname, flist, stp, flags, filter_level);
2084: if (!file)
2085: return NULL;
2086:
2087: can_tweak_mode = !S_ISLNK(file->mode) && file->mode;
2088: if ((filter_level == ALL_FILTERS || filter_level == ALL_FILTERS_NO_EXCLUDE)
2089: && last_hit_filter_rule) {
2090: if ((last_hit_filter_rule->rflags & FILTRULE_CHMOD) && can_tweak_mode)
2091: file->mode = tweak_mode(file->mode, last_hit_filter_rule->chmod->modes);
2092: if ((last_hit_filter_rule->rflags & FILTRULE_FORCE_OWNER) && uid_ndx)
2093: F_OWNER(file) = last_hit_filter_rule->force_uid;
2094: if ((last_hit_filter_rule->rflags & FILTRULE_FORCE_GROUP) && gid_ndx)
2095: F_GROUP(file) = last_hit_filter_rule->force_gid;
2096: }
2097: if (chmod_modes && can_tweak_mode)
2098: file->mode = tweak_mode(file->mode, chmod_modes);
2099:
2100: if (f >= 0) {
2101: char fbuf[MAXPATHLEN];
2102: #ifdef SUPPORT_LINKS
2103: const char *symlink_name;
2104: int symlink_len;
2105: #ifdef ICONV_OPTION
2106: char symlink_buf[MAXPATHLEN];
2107: #endif
2108: #endif
2109: #if defined SUPPORT_ACLS || defined SUPPORT_XATTRS
2110: stat_x sx;
2111: init_stat_x(&sx);
2112: #endif
2113:
2114: #ifdef SUPPORT_LINKS
2115: if (preserve_links && S_ISLNK(file->mode)) {
2116: symlink_name = F_SYMLINK(file);
2117: symlink_len = strlen(symlink_name);
2118: if (symlink_len == 0) {
2119: io_error |= IOERR_GENERAL;
2120: f_name(file, fbuf);
2121: rprintf(FERROR_XFER,
2122: "skipping symlink with 0-length value: %s\n",
2123: full_fname(fbuf));
2124: return NULL;
2125: }
2126: } else {
2127: symlink_name = NULL;
2128: symlink_len = 0;
2129: }
2130: #endif
2131:
2132: #ifdef ICONV_OPTION
2133: if (ic_send != (iconv_t)-1) {
2134: xbuf outbuf, inbuf;
2135:
2136: INIT_CONST_XBUF(outbuf, fbuf);
2137:
2138: if (file->dirname) {
2139: INIT_XBUF_STRLEN(inbuf, (char*)file->dirname);
2140: outbuf.size -= 2; /* Reserve room for '/' & 1 more char. */
2141: if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0)
2142: goto convert_error;
2143: outbuf.size += 2;
2144: fbuf[outbuf.len++] = '/';
2145: }
2146:
2147: INIT_XBUF_STRLEN(inbuf, (char*)file->basename);
2148: if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0) {
2149: convert_error:
2150: io_error |= IOERR_GENERAL;
2151: rprintf(FERROR_XFER,
2152: "[%s] cannot convert filename: %s (%s)\n",
2153: who_am_i(), f_name(file, fbuf), strerror(errno));
2154: return NULL;
2155: }
2156: fbuf[outbuf.len] = '\0';
2157:
2158: #ifdef SUPPORT_LINKS
2159: if (symlink_len && sender_symlink_iconv) {
2160: INIT_XBUF(inbuf, (char*)symlink_name, symlink_len, (size_t)-1);
2161: INIT_CONST_XBUF(outbuf, symlink_buf);
2162: if (iconvbufs(ic_send, &inbuf, &outbuf, ICB_INIT) < 0) {
2163: io_error |= IOERR_GENERAL;
2164: f_name(file, fbuf);
2165: rprintf(FERROR_XFER,
2166: "[%s] cannot convert symlink data for: %s (%s)\n",
2167: who_am_i(), full_fname(fbuf), strerror(errno));
2168: return NULL;
2169: }
2170: symlink_buf[outbuf.len] = '\0';
2171:
2172: symlink_name = symlink_buf;
2173: symlink_len = outbuf.len;
2174: }
2175: #endif
2176: } else
2177: #endif
2178: f_name(file, fbuf);
2179:
2180: #ifdef SUPPORT_ACLS
2181: if (preserve_acls && !S_ISLNK(file->mode)) {
2182: sx.st.st_mode = file->mode;
2183: if (get_acl(fname, &sx) < 0) {
2184: io_error |= IOERR_GENERAL;
2185: return NULL;
2186: }
2187: }
2188: #endif
2189: #ifdef SUPPORT_XATTRS
2190: if (preserve_xattrs) {
2191: sx.st.st_mode = file->mode;
2192: if (preserve_fileflags)
2193: sx.st.st_flags = F_FFLAGS(file);
2194: sx.st.st_mtime = file->modtime; /* get_xattr needs mtime for decmpfs xattrs */
2195: if (get_xattr(fname, &sx) < 0) {
2196: io_error |= IOERR_GENERAL;
2197: return NULL;
2198: }
2199: }
2200: #endif
2201:
2202: send_file_entry(f, fbuf, file,
2203: #ifdef SUPPORT_LINKS
2204: symlink_name, symlink_len,
2205: #endif
2206: flist->used, flist->ndx_start);
2207:
2208: #ifdef SUPPORT_ACLS
2209: if (preserve_acls && !S_ISLNK(file->mode)) {
2210: send_acl(f, &sx);
2211: free_acl(&sx);
2212: }
2213: #endif
2214: #ifdef SUPPORT_XATTRS
2215: if (preserve_xattrs) {
2216: F_XATTR(file) = send_xattr(f, &sx);
2217: free_xattr(&sx);
2218: }
2219: #endif
2220: }
2221:
2222: maybe_emit_filelist_progress(flist->used + flist_count_offset);
2223:
2224: flist_expand(flist, 1);
2225: flist->files[flist->used++] = file;
2226:
2227: return file;
2228: }
2229:
2230: static void send_if_directory(int f, struct file_list *flist,
2231: struct file_struct *file,
2232: char *fbuf, unsigned int ol,
2233: int flags)
2234: {
2235: char is_dot_dir = fbuf[ol-1] == '.' && (ol == 1 || fbuf[ol-2] == '/');
2236:
2237: if (S_ISDIR(file->mode)
2238: && !(file->flags & FLAG_MOUNT_DIR) && f_name(file, fbuf)) {
2239: void *save_filters;
2240: unsigned int len = strlen(fbuf);
2241: if (len > 1 && fbuf[len-1] == '/')
2242: fbuf[--len] = '\0';
2243: save_filters = push_local_filters(fbuf, len);
2244: send_directory(f, flist, fbuf, len, flags);
2245: pop_local_filters(save_filters);
2246: fbuf[ol] = '\0';
2247: if (is_dot_dir)
2248: fbuf[ol-1] = '.';
2249: }
2250: }
2251:
2252: static int file_compare(const void *file1, const void *file2)
2253: {
2254: return f_name_cmp(*(struct file_struct **)file1,
2255: *(struct file_struct **)file2);
2256: }
2257:
2258: /* The guts of a merge-sort algorithm. This was derived from the glibc
2259: * version, but I (Wayne) changed the merge code to do less copying and
2260: * to require only half the amount of temporary memory. */
2261: static void fsort_tmp(struct file_struct **fp, size_t num,
2262: struct file_struct **tmp)
2263: {
2264: struct file_struct **f1, **f2, **t;
2265: size_t n1, n2;
2266:
2267: n1 = num / 2;
2268: n2 = num - n1;
2269: f1 = fp;
2270: f2 = fp + n1;
2271:
2272: if (n1 > 1)
2273: fsort_tmp(f1, n1, tmp);
2274: if (n2 > 1)
2275: fsort_tmp(f2, n2, tmp);
2276:
2277: while (f_name_cmp(*f1, *f2) <= 0) {
2278: if (!--n1)
2279: return;
2280: f1++;
2281: }
2282:
2283: t = tmp;
2284: memcpy(t, f1, n1 * PTR_SIZE);
2285:
2286: *f1++ = *f2++, n2--;
2287:
2288: while (n1 > 0 && n2 > 0) {
2289: if (f_name_cmp(*t, *f2) <= 0)
2290: *f1++ = *t++, n1--;
2291: else
2292: *f1++ = *f2++, n2--;
2293: }
2294:
2295: if (n1 > 0)
2296: memcpy(f1, t, n1 * PTR_SIZE);
2297: }
2298:
2299: /* This file-struct sorting routine makes sure that any identical names in
2300: * the file list stay in the same order as they were in the original list.
2301: * This is particularly vital in inc_recurse mode where we expect a sort
2302: * on the flist to match the exact order of a sort on the dir_flist. */
2303: static void fsort(struct file_struct **fp, size_t num)
2304: {
2305: if (num <= 1)
2306: return;
2307:
2308: if (use_qsort)
2309: qsort(fp, num, PTR_SIZE, file_compare);
2310: else {
2311: struct file_struct **tmp = new_array(struct file_struct *, (num+1) / 2);
2312: fsort_tmp(fp, num, tmp);
2313: free(tmp);
2314: }
2315: }
2316:
2317: /* We take an entire set of sibling dirs from the sorted flist and link them
2318: * into the tree, setting the appropriate parent/child/sibling pointers. */
2319: static void add_dirs_to_tree(int parent_ndx, struct file_list *from_flist,
2320: int dir_cnt)
2321: {
2322: int i;
2323: int32 *dp = NULL;
2324: int32 *parent_dp = parent_ndx < 0 ? NULL
2325: : F_DIR_NODE_P(dir_flist->sorted[parent_ndx]);
2326:
2327: /* The sending side is adding entries to dir_flist in sorted order, so sorted & files are the same. */
2328: flist_expand(dir_flist, dir_cnt);
2329: dir_flist->sorted = dir_flist->files;
2330:
2331: for (i = 0; dir_cnt; i++) {
2332: struct file_struct *file = from_flist->sorted[i];
2333:
2334: if (!S_ISDIR(file->mode))
2335: continue;
2336:
2337: dir_flist->files[dir_flist->used++] = file;
2338: dir_cnt--;
2339:
2340: if (file->basename[0] == '.' && file->basename[1] == '\0')
2341: continue;
2342:
2343: if (dp)
2344: DIR_NEXT_SIBLING(dp) = dir_flist->used - 1;
2345: else if (parent_dp)
2346: DIR_FIRST_CHILD(parent_dp) = dir_flist->used - 1;
2347: else
2348: send_dir_ndx = dir_flist->used - 1;
2349:
2350: dp = F_DIR_NODE_P(file);
2351: DIR_PARENT(dp) = parent_ndx;
2352: DIR_FIRST_CHILD(dp) = -1;
2353: }
2354: if (dp)
2355: DIR_NEXT_SIBLING(dp) = -1;
2356: }
2357:
2358: static void interpret_stat_error(const char *fname, int is_dir)
2359: {
2360: if (errno == ENOENT) {
2361: io_error |= IOERR_VANISHED;
2362: rprintf(FWARNING, "%s has vanished: %s\n",
2363: is_dir ? "directory" : "file", full_fname(fname));
2364: } else {
2365: io_error |= IOERR_GENERAL;
2366: rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2367: full_fname(fname));
2368: }
2369: }
2370:
2371: /* This function is normally called by the sender, but the receiving side also
2372: * calls it from get_dirlist() with f set to -1 so that we just construct the
2373: * file list in memory without sending it over the wire. Also, get_dirlist()
2374: * might call this with f set to -2, which also indicates that local filter
2375: * rules should be ignored. */
2376: static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
2377: int flags)
2378: {
2379: struct dirent *di;
2380: unsigned remainder;
2381: char *p;
2382: DIR *d;
2383: int divert_dirs = (flags & FLAG_DIVERT_DIRS) != 0;
2384: int start = flist->used;
2385: int filter_level = f == -2 ? SERVER_FILTERS : ALL_FILTERS;
2386:
2387: assert(flist != NULL);
2388:
2389: if (!(d = opendir(fbuf))) {
2390: if (errno == ENOENT) {
2391: if (am_sender) /* Can abuse this for vanished error w/ENOENT: */
2392: interpret_stat_error(fbuf, True);
2393: return;
2394: }
2395: if (errno == ENOTDIR && (flags & FLAG_PERHAPS_DIR))
2396: return;
2397: io_error |= IOERR_GENERAL;
2398: rsyserr(FERROR_XFER, errno, "opendir %s failed", full_fname(fbuf));
2399: return;
2400: }
2401:
2402: p = fbuf + len;
2403: if (len == 1 && *fbuf == '/')
2404: remainder = MAXPATHLEN - 1;
2405: else if (len < MAXPATHLEN-1) {
2406: *p++ = '/';
2407: *p = '\0';
2408: remainder = MAXPATHLEN - (len + 1);
2409: } else
2410: remainder = 0;
2411:
2412: for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
2413: unsigned name_len;
2414: char *dname = d_name(di);
2415: if (dname[0] == '.' && (dname[1] == '\0'
2416: || (dname[1] == '.' && dname[2] == '\0')))
2417: continue;
2418: name_len = strlcpy(p, dname, remainder);
2419: if (name_len >= remainder) {
2420: char save = fbuf[len];
2421: fbuf[len] = '\0';
2422: io_error |= IOERR_GENERAL;
2423: rprintf(FERROR_XFER,
2424: "filename overflows max-path len by %u: %s/%s\n",
2425: name_len - remainder + 1, fbuf, dname);
2426: fbuf[len] = save;
2427: continue;
2428: }
2429: if (dname[0] == '\0') {
2430: io_error |= IOERR_GENERAL;
2431: rprintf(FERROR_XFER,
2432: "cannot send file with empty name in %s\n",
2433: full_fname(fbuf));
2434: continue;
2435: }
2436:
2437: send_file_name(f, flist, fbuf, NULL, flags, filter_level);
2438: /* Sleep for a bit, to avoid hammering the disk. */
2439: if (sleep_asec)
2440: usleep(sleep_asec);
2441: }
2442:
2443: fbuf[len] = '\0';
2444:
2445: if (errno) {
2446: io_error |= IOERR_GENERAL;
2447: rsyserr(FERROR_XFER, errno, "readdir(%s)", full_fname(fbuf));
2448: }
2449:
2450: closedir(d);
2451:
2452: if (checksum_files & CSF_UPDATE && am_sender && f >= 0)
2453: reset_checksum_cache(1);
2454:
2455: if (f >= 0 && recurse && !divert_dirs) {
2456: int i, end = flist->used - 1;
2457: /* send_if_directory() bumps flist->used, so use "end". */
2458: for (i = start; i <= end; i++)
2459: send_if_directory(f, flist, flist->files[i], fbuf, len, flags);
2460: }
2461: }
2462:
2463: static void send_implied_dirs(int f, struct file_list *flist, char *fname,
2464: char *start, char *limit, int flags, char name_type)
2465: {
2466: static char lastpath[MAXPATHLEN] = "";
2467: static int lastpath_len = 0;
2468: static struct file_struct *lastpath_struct = NULL;
2469: struct file_struct *file;
2470: item_list *relname_list;
2471: relnamecache **rnpp;
2472: int len, need_new_dir, depth = 0;
2473: filter_rule_list save_filter_list = filter_list;
2474:
2475: flags = (flags | FLAG_IMPLIED_DIR) & ~(FLAG_TOP_DIR | FLAG_CONTENT_DIR);
2476: filter_list.head = filter_list.tail = NULL; /* Don't filter implied dirs. */
2477:
2478: if (inc_recurse) {
2479: if (lastpath_struct && F_PATHNAME(lastpath_struct) == pathname
2480: && lastpath_len == limit - fname
2481: && strncmp(lastpath, fname, lastpath_len) == 0)
2482: need_new_dir = 0;
2483: else
2484: need_new_dir = 1;
2485: } else {
2486: char *tp = fname, *lp = lastpath;
2487: /* Skip any initial directories in our path that we
2488: * have in common with lastpath. */
2489: assert(start == fname);
2490: for ( ; ; tp++, lp++) {
2491: if (tp == limit) {
2492: if (*lp == '/' || *lp == '\0')
2493: goto done;
2494: break;
2495: }
2496: if (*lp != *tp)
2497: break;
2498: if (*tp == '/') {
2499: start = tp;
2500: depth++;
2501: }
2502: }
2503: need_new_dir = 1;
2504: }
2505:
2506: if (need_new_dir) {
2507: int save_copy_links = copy_links;
2508: int save_xfer_dirs = xfer_dirs;
2509: char *slash;
2510:
2511: copy_links = xfer_dirs = 1;
2512:
2513: *limit = '\0';
2514:
2515: for (slash = start; (slash = strchr(slash+1, '/')) != NULL; ) {
2516: *slash = '\0';
2517: file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
2518: depth++;
2519: if (!inc_recurse && file && S_ISDIR(file->mode))
2520: change_local_filter_dir(fname, strlen(fname), depth);
2521: *slash = '/';
2522: }
2523:
2524: file = send_file_name(f, flist, fname, NULL, flags, ALL_FILTERS);
2525: if (inc_recurse) {
2526: if (file && !S_ISDIR(file->mode))
2527: file = NULL;
2528: lastpath_struct = file;
2529: } else if (file && S_ISDIR(file->mode))
2530: change_local_filter_dir(fname, strlen(fname), ++depth);
2531:
2532: strlcpy(lastpath, fname, sizeof lastpath);
2533: lastpath_len = limit - fname;
2534:
2535: *limit = '/';
2536:
2537: copy_links = save_copy_links;
2538: xfer_dirs = save_xfer_dirs;
2539:
2540: if (!inc_recurse)
2541: goto done;
2542: }
2543:
2544: if (!lastpath_struct)
2545: goto done; /* dir must have vanished */
2546:
2547: len = strlen(limit+1);
2548: memcpy(&relname_list, F_DIR_RELNAMES_P(lastpath_struct), sizeof relname_list);
2549: if (!relname_list) {
2550: relname_list = new0(item_list);
2551: memcpy(F_DIR_RELNAMES_P(lastpath_struct), &relname_list, sizeof relname_list);
2552: }
2553: rnpp = EXPAND_ITEM_LIST(relname_list, relnamecache *, 32);
2554: *rnpp = (relnamecache*)new_array(char, RELNAMECACHE_LEN + len + 1);
2555: (*rnpp)->name_type = name_type;
2556: strlcpy((*rnpp)->fname, limit+1, len + 1);
2557:
2558: done:
2559: filter_list = save_filter_list;
2560: }
2561:
2562: static NORETURN void fatal_unsafe_io_error(void)
2563: {
2564: /* This (sadly) can only happen when pushing data because
2565: * the sender does not know about what kind of delete
2566: * is in effect on the receiving side when pulling. */
2567: rprintf(FERROR_XFER, "FATAL I/O ERROR: dying to avoid a --delete-%s issue with a pre-3.0.7 receiver.\n",
2568: delete_during == 2 ? "delay" : "during");
2569: exit_cleanup(RERR_UNSUPPORTED);
2570: }
2571:
2572: static void send1extra(int f, struct file_struct *file, struct file_list *flist)
2573: {
2574: char fbuf[MAXPATHLEN];
2575: item_list *relname_list;
2576: int len, dlen, flags = FLAG_DIVERT_DIRS | FLAG_CONTENT_DIR;
2577: size_t j;
2578:
2579: f_name(file, fbuf);
2580: dlen = strlen(fbuf);
2581:
2582: if (!change_pathname(file, NULL, 0))
2583: exit_cleanup(RERR_FILESELECT);
2584:
2585: change_local_filter_dir(fbuf, dlen, send_dir_depth);
2586:
2587: if (file->flags & FLAG_CONTENT_DIR) {
2588: if (one_file_system) {
2589: STRUCT_STAT st;
2590: if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
2591: interpret_stat_error(fbuf, True);
2592: return;
2593: }
2594: filesystem_dev = st.st_dev;
2595: }
2596: send_directory(f, flist, fbuf, dlen, flags);
2597: }
2598:
2599: if (!relative_paths)
2600: return;
2601:
2602: memcpy(&relname_list, F_DIR_RELNAMES_P(file), sizeof relname_list);
2603: if (!relname_list)
2604: return;
2605:
2606: for (j = 0; j < relname_list->count; j++) {
2607: char *slash;
2608: relnamecache *rnp = ((relnamecache**)relname_list->items)[j];
2609: char name_type = rnp->name_type;
2610:
2611: fbuf[dlen] = '/';
2612: len = strlcpy(fbuf + dlen + 1, rnp->fname, sizeof fbuf - dlen - 1);
2613: free(rnp);
2614: if (len >= (int)sizeof fbuf)
2615: continue; /* Impossible... */
2616:
2617: slash = strchr(fbuf+dlen+1, '/');
2618: if (slash) {
2619: send_implied_dirs(f, flist, fbuf, fbuf+dlen+1, slash, flags, name_type);
2620: continue;
2621: }
2622:
2623: if (name_type != NORMAL_NAME) {
2624: STRUCT_STAT st;
2625: if (name_type == MISSING_NAME)
2626: memset(&st, 0, sizeof st);
2627: else if (link_stat(fbuf, &st, 1) != 0) {
2628: interpret_stat_error(fbuf, True);
2629: continue;
2630: }
2631: send_file_name(f, flist, fbuf, &st, FLAG_TOP_DIR | flags, ALL_FILTERS);
2632: } else
2633: send_file_name(f, flist, fbuf, NULL, FLAG_TOP_DIR | flags, ALL_FILTERS);
2634: }
2635:
2636: free(relname_list);
2637: }
2638:
2639: static void write_end_of_flist(int f, int send_io_error)
2640: {
2641: if (xfer_flags_as_varint) {
2642: write_varint(f, 0);
2643: write_varint(f, send_io_error ? io_error : 0);
2644: } else if (send_io_error) {
2645: write_shortint(f, XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST);
2646: write_varint(f, io_error);
2647: } else
2648: write_byte(f, 0);
2649: }
2650:
2651: void send_extra_file_list(int f, int at_least)
2652: {
2653: struct file_list *flist;
2654: int64 start_write;
2655: uint16 prev_flags;
2656: int save_io_error = io_error;
2657:
2658: if (flist_eof)
2659: return;
2660:
2661: if (at_least < 0)
2662: at_least = file_total - file_old_total + 1;
2663:
2664: /* Keep sending data until we have the requested number of
2665: * files in the upcoming file-lists. */
2666: while (file_total - file_old_total < at_least) {
2667: struct file_struct *file = dir_flist->sorted[send_dir_ndx];
2668: int dir_ndx, dstart = stats.num_dirs;
2669: const char *pathname = F_PATHNAME(file);
2670: int32 *dp;
2671:
2672: flist = flist_new(0, "send_extra_file_list");
2673: start_write = stats.total_written;
2674:
2675: if (unsort_ndx)
2676: dir_ndx = F_NDX(file);
2677: else
2678: dir_ndx = send_dir_ndx;
2679: write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
2680: flist->parent_ndx = send_dir_ndx; /* the sending side must remember the sorted ndx value */
2681:
2682: send1extra(f, file, flist);
2683: prev_flags = file->flags;
2684: dp = F_DIR_NODE_P(file);
2685:
2686: /* If there are any duplicate directory names that follow, we
2687: * send all the dirs together in one file-list. The dir_flist
2688: * tree links all the child subdirs onto the last dup dir. */
2689: while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
2690: && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
2691: send_dir_ndx = dir_ndx;
2692: file = dir_flist->sorted[dir_ndx];
2693: /* Try to avoid some duplicate scanning of identical dirs. */
2694: if (F_PATHNAME(file) == pathname && prev_flags & FLAG_CONTENT_DIR)
2695: file->flags &= ~FLAG_CONTENT_DIR;
2696: send1extra(f, file, flist);
2697: prev_flags = file->flags;
2698: dp = F_DIR_NODE_P(file);
2699: }
2700:
2701: if (io_error == save_io_error || ignore_errors)
2702: write_end_of_flist(f, 0);
2703: else if (use_safe_inc_flist)
2704: write_end_of_flist(f, 1);
2705: else {
2706: if (delete_during)
2707: fatal_unsafe_io_error();
2708: write_end_of_flist(f, 0);
2709: }
2710:
2711: if (need_unsorted_flist) {
2712: flist->sorted = new_array(struct file_struct *, flist->used);
2713: memcpy(flist->sorted, flist->files, flist->used * PTR_SIZE);
2714: } else
2715: flist->sorted = flist->files;
2716:
2717: flist_sort_and_clean(flist, 0);
2718:
2719: add_dirs_to_tree(send_dir_ndx, flist, stats.num_dirs - dstart);
2720: flist_done_allocating(flist);
2721:
2722: file_total += flist->used;
2723: stats.flist_size += stats.total_written - start_write;
2724: stats.num_files += flist->used;
2725: if (DEBUG_GTE(FLIST, 3))
2726: output_flist(flist);
2727:
2728: if (DIR_FIRST_CHILD(dp) >= 0) {
2729: send_dir_ndx = DIR_FIRST_CHILD(dp);
2730: send_dir_depth++;
2731: } else {
2732: while (DIR_NEXT_SIBLING(dp) < 0) {
2733: if ((send_dir_ndx = DIR_PARENT(dp)) < 0) {
2734: write_ndx(f, NDX_FLIST_EOF);
2735: flist_eof = 1;
2736: if (DEBUG_GTE(FLIST, 3))
2737: rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
2738: change_local_filter_dir(NULL, 0, 0);
2739: goto finish;
2740: }
2741: send_dir_depth--;
2742: file = dir_flist->sorted[send_dir_ndx];
2743: dp = F_DIR_NODE_P(file);
2744: }
2745: send_dir_ndx = DIR_NEXT_SIBLING(dp);
2746: }
2747: }
2748:
2749: finish:
2750: if (io_error != save_io_error && protocol_version == 30 && !ignore_errors)
2751: send_msg_int(MSG_IO_ERROR, io_error);
2752:
2753: if (use_db && flist_eof)
2754: db_disconnect(True);
2755: }
2756:
2757: struct file_list *send_file_list(int f, int argc, char *argv[])
2758: {
2759: static const char *lastdir;
2760: static int lastdir_len = -1;
2761: int len, dirlen;
2762: STRUCT_STAT st;
2763: char *p, *dir;
2764: struct file_list *flist;
2765: struct timeval start_tv, end_tv;
2766: int64 start_write;
2767: int use_ff_fd = 0;
2768: int disable_buffering, reenable_multiplex = -1;
2769: int flags = recurse ? FLAG_CONTENT_DIR : 0;
2770: int reading_remotely = filesfrom_host != NULL;
2771: int rl_flags = (reading_remotely ? 0 : RL_DUMP_COMMENTS)
2772: #ifdef ICONV_OPTION
2773: | (filesfrom_convert ? RL_CONVERT : 0)
2774: #endif
2775: | (eol_nulls || reading_remotely ? RL_EOL_NULLS : 0);
2776: int implied_dot_dir = 0;
2777:
2778: if (use_db) {
2779: if (always_checksum)
2780: db_connect(0); /* Will reset use_db on error. */
2781: else
2782: use_db = 0;
2783: }
2784:
2785: rprintf(FLOG, "building file list\n");
2786: if (show_filelist_progress)
2787: start_filelist_progress("building file list");
2788: else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
2789: rprintf(FCLIENT, "sending incremental file list\n");
2790:
2791: start_write = stats.total_written;
2792: gettimeofday(&start_tv, NULL);
2793:
2794: if (relative_paths && protocol_version >= 30)
2795: implied_dirs = 1; /* We send flagged implied dirs */
2796:
2797: #ifdef SUPPORT_HARD_LINKS
2798: if (preserve_hard_links && protocol_version >= 30 && !cur_flist)
2799: init_hard_links();
2800: #endif
2801:
2802: flist = cur_flist = flist_new(0, "send_file_list");
2803: if (inc_recurse) {
2804: dir_flist = flist_new(FLIST_TEMP, "send_file_list");
2805: flags |= FLAG_DIVERT_DIRS;
2806: } else
2807: dir_flist = cur_flist;
2808:
2809: disable_buffering = io_start_buffering_out(f);
2810: if (filesfrom_fd >= 0) {
2811: if (argv[0] && !change_dir(argv[0], CD_NORMAL)) {
2812: rsyserr(FERROR_XFER, errno, "change_dir %s failed",
2813: full_fname(argv[0]));
2814: exit_cleanup(RERR_FILESELECT);
2815: }
2816: if (protocol_version < 31) {
2817: /* Older protocols send the files-from data w/o packaging
2818: * it in multiplexed I/O packets, so temporarily switch
2819: * to buffered I/O to match this behavior. */
2820: reenable_multiplex = io_end_multiplex_in(MPLX_TO_BUFFERED);
2821: }
2822: use_ff_fd = 1;
2823: }
2824:
2825: if (!orig_dir)
2826: orig_dir = strdup(curr_dir);
2827:
2828: while (1) {
2829: char fbuf[MAXPATHLEN], *fn, name_type;
2830:
2831: if (use_ff_fd) {
2832: if (read_line(filesfrom_fd, fbuf, sizeof fbuf, rl_flags) == 0)
2833: break;
2834: sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2835: } else {
2836: if (argc-- == 0)
2837: break;
2838: strlcpy(fbuf, *argv++, MAXPATHLEN);
2839: if (sanitize_paths)
2840: sanitize_path(fbuf, fbuf, "", 0, SP_KEEP_DOT_DIRS);
2841: }
2842:
2843: len = strlen(fbuf);
2844: if (relative_paths) {
2845: /* We clean up fbuf below. */
2846: name_type = NORMAL_NAME;
2847: } else if (!len || fbuf[len - 1] == '/') {
2848: if (len == 2 && fbuf[0] == '.') {
2849: /* Turn "./" into just "." rather than "./." */
2850: fbuf[--len] = '\0';
2851: } else {
2852: if (len + 1 >= MAXPATHLEN)
2853: overflow_exit("send_file_list");
2854: fbuf[len++] = '.';
2855: fbuf[len] = '\0';
2856: }
2857: name_type = DOTDIR_NAME;
2858: } else if (len > 1 && fbuf[len-1] == '.' && fbuf[len-2] == '.'
2859: && (len == 2 || fbuf[len-3] == '/')) {
2860: if (len + 2 >= MAXPATHLEN)
2861: overflow_exit("send_file_list");
2862: fbuf[len++] = '/';
2863: fbuf[len++] = '.';
2864: fbuf[len] = '\0';
2865: name_type = DOTDIR_NAME;
2866: } else if (fbuf[len-1] == '.' && (len == 1 || fbuf[len-2] == '/'))
2867: name_type = DOTDIR_NAME;
2868: else
2869: name_type = NORMAL_NAME;
2870:
2871: dir = NULL;
2872:
2873: if (!relative_paths) {
2874: p = strrchr(fbuf, '/');
2875: if (p) {
2876: *p = '\0';
2877: if (p == fbuf)
2878: dir = "/";
2879: else
2880: dir = fbuf;
2881: len -= p - fbuf + 1;
2882: fn = p + 1;
2883: } else
2884: fn = fbuf;
2885: } else {
2886: if ((p = strstr(fbuf, "/./")) != NULL) {
2887: *p = '\0';
2888: if (p == fbuf)
2889: dir = "/";
2890: else {
2891: dir = fbuf;
2892: clean_fname(dir, 0);
2893: }
2894: fn = p + 3;
2895: while (*fn == '/')
2896: fn++;
2897: if (!*fn)
2898: *--fn = '\0'; /* ensure room for '.' */
2899: } else
2900: fn = fbuf;
2901: /* A leading ./ can be used in relative mode to affect
2902: * the dest dir without its name being in the path. */
2903: if (*fn == '.' && fn[1] == '/' && fn[2] && !implied_dot_dir)
2904: implied_dot_dir = -1;
2905: len = clean_fname(fn, CFN_KEEP_TRAILING_SLASH
2906: | CFN_DROP_TRAILING_DOT_DIR);
2907: if (len == 1) {
2908: if (fn[0] == '/') {
2909: fn = "/.";
2910: len = 2;
2911: name_type = DOTDIR_NAME;
2912: } else if (fn[0] == '.')
2913: name_type = DOTDIR_NAME;
2914: } else if (fn[len-1] == '/') {
2915: fn[--len] = '\0';
2916: if (len == 1 && *fn == '.')
2917: name_type = DOTDIR_NAME;
2918: else
2919: name_type = SLASH_ENDING_NAME;
2920: }
2921: /* Reject a ".." dir in the active part of the path. */
2922: for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
2923: if ((p[2] == '/' || p[2] == '\0')
2924: && (p == fn || p[-1] == '/')) {
2925: rprintf(FERROR,
2926: "found \"..\" dir in relative path: %s\n",
2927: fn);
2928: exit_cleanup(RERR_SYNTAX);
2929: }
2930: }
2931: }
2932:
2933: if (!*fn) {
2934: len = 1;
2935: fn = ".";
2936: name_type = DOTDIR_NAME;
2937: }
2938:
2939: dirlen = dir ? strlen(dir) : 0;
2940: if (dirlen != lastdir_len || memcmp(lastdir, dir, dirlen) != 0) {
2941: if (!change_pathname(NULL, dir, -dirlen))
2942: goto bad_path;
2943: lastdir = pathname;
2944: lastdir_len = pathname_len;
2945: } else if (!change_pathname(NULL, lastdir, lastdir_len)) {
2946: bad_path:
2947: if (implied_dot_dir < 0)
2948: implied_dot_dir = 0;
2949: continue;
2950: }
2951:
2952: if (implied_dot_dir < 0) {
2953: implied_dot_dir = 1;
2954: send_file_name(f, flist, ".", NULL, (flags | FLAG_IMPLIED_DIR) & ~FLAG_CONTENT_DIR, ALL_FILTERS);
2955: }
2956:
2957: if (fn != fbuf)
2958: memmove(fbuf, fn, len + 1);
2959:
2960: if (link_stat(fbuf, &st, copy_dirlinks || name_type != NORMAL_NAME) != 0
2961: || (name_type != DOTDIR_NAME && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, SERVER_FILTERS))
2962: || (relative_paths && path_is_daemon_excluded(fbuf, 1))) {
2963: if (errno != ENOENT || missing_args == 0) {
2964: /* This is a transfer error, but inhibit deletion
2965: * only if we might be omitting an existing file. */
2966: if (errno != ENOENT)
2967: io_error |= IOERR_GENERAL;
2968: rsyserr(FERROR_XFER, errno, "link_stat %s failed",
2969: full_fname(fbuf));
2970: continue;
2971: } else if (missing_args == 1) {
2972: /* Just ignore the arg. */
2973: continue;
2974: } else /* (missing_args == 2) */ {
2975: /* Send the arg as a "missing" entry with
2976: * mode 0, which tells the generator to delete it. */
2977: memset(&st, 0, sizeof st);
2978: }
2979: }
2980:
2981: /* A dot-dir should not be excluded! */
2982: if (name_type != DOTDIR_NAME && st.st_mode != 0
2983: && is_excluded(fbuf, S_ISDIR(st.st_mode) != 0, ALL_FILTERS))
2984: continue;
2985:
2986: if (S_ISDIR(st.st_mode) && !xfer_dirs) {
2987: rprintf(FINFO, "skipping directory %s\n", fbuf);
2988: continue;
2989: }
2990:
2991: if (inc_recurse && relative_paths && *fbuf) {
2992: if ((p = strchr(fbuf+1, '/')) != NULL) {
2993: if (p - fbuf == 1 && *fbuf == '.') {
2994: if ((fn = strchr(p+1, '/')) != NULL)
2995: p = fn;
2996: } else
2997: fn = p;
2998: send_implied_dirs(f, flist, fbuf, fbuf, p, flags,
2999: IS_MISSING_FILE(st) ? MISSING_NAME : name_type);
3000: if (fn == p)
3001: continue;
3002: }
3003: } else if (implied_dirs && (p=strrchr(fbuf,'/')) && p != fbuf) {
3004: /* Send the implied directories at the start of the
3005: * source spec, so we get their permissions right. */
3006: send_implied_dirs(f, flist, fbuf, fbuf, p, flags, 0);
3007: }
3008:
3009: if (one_file_system)
3010: filesystem_dev = st.st_dev;
3011:
3012: if (recurse || (xfer_dirs && name_type != NORMAL_NAME)) {
3013: struct file_struct *file;
3014: file = send_file_name(f, flist, fbuf, &st,
3015: FLAG_TOP_DIR | FLAG_CONTENT_DIR | flags,
3016: ALL_FILTERS_NO_EXCLUDE);
3017: if (!file)
3018: continue;
3019: if (inc_recurse) {
3020: if (name_type == DOTDIR_NAME) {
3021: if (send_dir_depth < 0) {
3022: send_dir_depth = 0;
3023: change_local_filter_dir(fbuf, len, send_dir_depth);
3024: }
3025: send_directory(f, flist, fbuf, len, flags);
3026: }
3027: } else
3028: send_if_directory(f, flist, file, fbuf, len, flags);
3029: } else
3030: send_file_name(f, flist, fbuf, &st, flags, ALL_FILTERS_NO_EXCLUDE);
3031: }
3032:
3033: if (reenable_multiplex >= 0)
3034: io_start_multiplex_in(reenable_multiplex);
3035:
3036: gettimeofday(&end_tv, NULL);
3037: stats.flist_buildtime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
3038: + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
3039: if (stats.flist_buildtime == 0)
3040: stats.flist_buildtime = 1;
3041: start_tv = end_tv;
3042:
3043: /* Indicate end of file list */
3044: if (io_error == 0 || ignore_errors)
3045: write_end_of_flist(f, 0);
3046: else if (use_safe_inc_flist)
3047: write_end_of_flist(f, 1);
3048: else {
3049: if (delete_during && inc_recurse)
3050: fatal_unsafe_io_error();
3051: write_end_of_flist(f, 0);
3052: }
3053:
3054: #ifdef SUPPORT_HARD_LINKS
3055: if (preserve_hard_links && protocol_version >= 30 && !inc_recurse)
3056: idev_destroy();
3057: #endif
3058:
3059: if (show_filelist_progress)
3060: finish_filelist_progress(flist);
3061:
3062: gettimeofday(&end_tv, NULL);
3063: stats.flist_xfertime = (int64)(end_tv.tv_sec - start_tv.tv_sec) * 1000
3064: + (end_tv.tv_usec - start_tv.tv_usec) / 1000;
3065:
3066: /* When converting names, both sides keep an unsorted file-list array
3067: * because the names will differ on the sending and receiving sides
3068: * (both sides will use the unsorted index number for each item). */
3069:
3070: /* Sort the list without removing any duplicates. This allows the
3071: * receiving side to ask for whatever name it kept. For incremental
3072: * recursion mode, the sender marks duplicate dirs so that it can
3073: * send them together in a single file-list. */
3074: if (need_unsorted_flist) {
3075: flist->sorted = new_array(struct file_struct *, flist->used);
3076: memcpy(flist->sorted, flist->files, flist->used * PTR_SIZE);
3077: } else
3078: flist->sorted = flist->files;
3079: flist_sort_and_clean(flist, 0);
3080: file_total += flist->used;
3081: file_old_total += flist->used;
3082:
3083: if (numeric_ids <= 0 && !inc_recurse)
3084: send_id_lists(f);
3085:
3086: /* send the io_error flag */
3087: if (protocol_version < 30)
3088: write_int(f, ignore_errors ? 0 : io_error);
3089: else if (!use_safe_inc_flist && io_error && !ignore_errors)
3090: send_msg_int(MSG_IO_ERROR, io_error);
3091:
3092: if (disable_buffering)
3093: io_end_buffering_out(IOBUF_FREE_BUFS);
3094:
3095: stats.flist_size = stats.total_written - start_write;
3096: stats.num_files = flist->used;
3097:
3098: if (DEBUG_GTE(FLIST, 3))
3099: output_flist(flist);
3100:
3101: if (DEBUG_GTE(FLIST, 2))
3102: rprintf(FINFO, "send_file_list done\n");
3103:
3104: if (inc_recurse) {
3105: send_dir_depth = 1;
3106: add_dirs_to_tree(-1, flist, stats.num_dirs);
3107: if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
3108: flist->parent_ndx = -1;
3109: flist_done_allocating(flist);
3110: if (send_dir_ndx < 0) {
3111: write_ndx(f, NDX_FLIST_EOF);
3112: flist_eof = 1;
3113: if (DEBUG_GTE(FLIST, 3))
3114: rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
3115: }
3116: else if (file_total == 1) {
3117: /* If we're creating incremental file-lists and there
3118: * was just 1 item in the first file-list, send 1 more
3119: * file-list to check if this is a 1-file xfer. */
3120: send_extra_file_list(f, 1);
3121: }
3122: } else {
3123: flist_eof = 1;
3124: if (DEBUG_GTE(FLIST, 3))
3125: rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
3126: }
3127:
3128: if (checksum_files & CSF_UPDATE && flist_eof)
3129: reset_checksum_cache(0); /* writes any last updates */
3130:
3131: return flist;
3132: }
3133:
3134: struct file_list *recv_file_list(int f, int dir_ndx)
3135: {
3136: const char *good_dirname = NULL;
3137: struct file_list *flist;
3138: int dstart, flags;
3139: int64 start_read;
3140:
3141: if (!first_flist) {
3142: if (show_filelist_progress)
3143: start_filelist_progress("receiving file list");
3144: else if (inc_recurse && INFO_GTE(FLIST, 1) && !am_server)
3145: rprintf(FCLIENT, "receiving incremental file list\n");
3146: rprintf(FLOG, "receiving file list\n");
3147: if (usermap)
3148: parse_name_map(usermap, True);
3149: if (groupmap)
3150: parse_name_map(groupmap, False);
3151: if (tr_opt) { /* Parse FROM/TO string and populate tr_substitutions[] */
3152: char *f, *t;
3153: if ((t = strchr(tr_opt, '/')) != NULL)
3154: *t++ = '\0';
3155: else
3156: t = "";
3157: for (f = tr_opt; *f; f++)
3158: tr_substitutions[*(uchar*)f] = *t ? *t++ : '\0';
3159: }
3160: }
3161:
3162: start_read = stats.total_read;
3163:
3164: #ifdef SUPPORT_HARD_LINKS
3165: if (preserve_hard_links && !first_flist)
3166: init_hard_links();
3167: #endif
3168:
3169: flist = flist_new(0, "recv_file_list");
3170:
3171: if (inc_recurse) {
3172: if (flist->ndx_start == 1)
3173: dir_flist = flist_new(FLIST_TEMP, "recv_file_list");
3174: dstart = dir_flist->used;
3175: } else {
3176: dir_flist = flist;
3177: dstart = 0;
3178: }
3179:
3180: while (1) {
3181: struct file_struct *file;
3182:
3183: if (xfer_flags_as_varint) {
3184: if ((flags = read_varint(f)) == 0) {
3185: int err = read_varint(f);
3186: if (!ignore_errors)
3187: io_error |= err;
3188: break;
3189: }
3190: } else {
3191: if ((flags = read_byte(f)) == 0)
3192: break;
3193:
3194: if (protocol_version >= 28 && (flags & XMIT_EXTENDED_FLAGS))
3195: flags |= read_byte(f) << 8;
3196:
3197: if (flags == (XMIT_EXTENDED_FLAGS|XMIT_IO_ERROR_ENDLIST)) {
3198: int err;
3199: if (!use_safe_inc_flist) {
3200: rprintf(FERROR, "Invalid flist flag: %x\n", flags);
3201: exit_cleanup(RERR_PROTOCOL);
3202: }
3203: err = read_varint(f);
3204: if (!ignore_errors)
3205: io_error |= err;
3206: break;
3207: }
3208: }
3209:
3210: flist_expand(flist, 1);
3211: file = recv_file_entry(f, flist, flags);
3212:
3213: if (inc_recurse) {
3214: static const char empty_dir[] = "\0";
3215: const char *cur_dir = file->dirname ? file->dirname : empty_dir;
3216: if (relative_paths && *cur_dir == '/')
3217: cur_dir++;
3218: if (cur_dir != good_dirname) {
3219: const char *d = dir_ndx >= 0 ? f_name(dir_flist->files[dir_ndx], NULL) : empty_dir;
3220: int dir_differs = ignore_case ? strcasecmp(cur_dir, d) : strcmp(cur_dir, d);
3221: if (dir_differs) {
3222: rprintf(FERROR,
3223: "ABORTING due to invalid path from sender: %s/%s\n",
3224: cur_dir, file->basename);
3225: exit_cleanup(RERR_PROTOCOL);
3226: }
3227: good_dirname = cur_dir;
3228: }
3229: }
3230:
3231: if (S_ISREG(file->mode)) {
3232: /* Already counted */
3233: } else if (S_ISDIR(file->mode)) {
3234: if (inc_recurse) {
3235: flist_expand(dir_flist, 1);
3236: dir_flist->files[dir_flist->used++] = file;
3237: }
3238: stats.num_dirs++;
3239: } else if (S_ISLNK(file->mode))
3240: stats.num_symlinks++;
3241: else if (IS_DEVICE(file->mode))
3242: stats.num_symlinks++;
3243: else
3244: stats.num_specials++;
3245:
3246: flist->files[flist->used++] = file;
3247:
3248: maybe_emit_filelist_progress(flist->used);
3249:
3250: if (DEBUG_GTE(FLIST, 2)) {
3251: char *name = f_name(file, NULL);
3252: rprintf(FINFO, "recv_file_name(%s)\n", NS(name));
3253: }
3254: }
3255: file_total += flist->used;
3256:
3257: if (DEBUG_GTE(FLIST, 2))
3258: rprintf(FINFO, "received %d names\n", flist->used);
3259:
3260: if (show_filelist_progress)
3261: finish_filelist_progress(flist);
3262:
3263: if (need_unsorted_flist) {
3264: /* Create an extra array of index pointers that we can sort for
3265: * the generator's use (for wading through the files in sorted
3266: * order and for calling flist_find()). We keep the "files"
3267: * list unsorted for our exchange of index numbers with the
3268: * other side (since their names may not sort the same). */
3269: flist->sorted = new_array(struct file_struct *, flist->used);
3270: memcpy(flist->sorted, flist->files, flist->used * PTR_SIZE);
3271: if (inc_recurse && dir_flist->used > dstart) {
3272: static int dir_flist_malloced = 0;
3273: if (dir_flist_malloced < dir_flist->malloced) {
3274: dir_flist->sorted = realloc_array(dir_flist->sorted,
3275: struct file_struct *,
3276: dir_flist->malloced);
3277: dir_flist_malloced = dir_flist->malloced;
3278: }
3279: memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
3280: (dir_flist->used - dstart) * PTR_SIZE);
3281: fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
3282: }
3283: } else {
3284: flist->sorted = flist->files;
3285: if (inc_recurse && dir_flist->used > dstart) {
3286: dir_flist->sorted = dir_flist->files;
3287: fsort(dir_flist->sorted + dstart, dir_flist->used - dstart);
3288: }
3289: }
3290:
3291: if (inc_recurse)
3292: flist_done_allocating(flist);
3293: else if (f >= 0) {
3294: recv_id_list(f, flist);
3295: flist_eof = 1;
3296: if (DEBUG_GTE(FLIST, 3))
3297: rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
3298: }
3299:
3300: /* The --relative option sends paths with a leading slash, so we need
3301: * to specify the strip_root option here. We rejected leading slashes
3302: * for a non-relative transfer in recv_file_entry(). */
3303: flist_sort_and_clean(flist, relative_paths ? CLEAN_STRIP_ROOT : 0);
3304:
3305: if (detect_renamed) {
3306: int j = flist->used;
3307: the_fattr_list.used = j;
3308: the_fattr_list.files = new_array(struct file_struct *, j);
3309: memcpy(the_fattr_list.files, flist->files,
3310: j * sizeof (struct file_struct *));
3311: qsort(the_fattr_list.files, j,
3312: sizeof the_fattr_list.files[0], (int (*)())fattr_compare);
3313: the_fattr_list.low = 0;
3314: while (j-- > 0) {
3315: struct file_struct *fp = the_fattr_list.files[j];
3316: if (fp->basename && S_ISREG(fp->mode) && F_LENGTH(fp))
3317: break;
3318: }
3319: the_fattr_list.high = j;
3320: }
3321:
3322: if (protocol_version < 30) {
3323: /* Recv the io_error flag */
3324: int err = read_int(f);
3325: if (!ignore_errors)
3326: io_error |= err;
3327: } else if (inc_recurse && flist->ndx_start == 1) {
3328: if (!file_total || strcmp(flist->sorted[flist->low]->basename, ".") != 0)
3329: flist->parent_ndx = -1;
3330: }
3331:
3332: if (DEBUG_GTE(FLIST, 3))
3333: output_flist(flist);
3334:
3335: if (DEBUG_GTE(FLIST, 2))
3336: rprintf(FINFO, "recv_file_list done\n");
3337:
3338: stats.flist_size += stats.total_read - start_read;
3339: stats.num_files += flist->used;
3340:
3341: return flist;
3342: }
3343:
3344: /* This is only used once by the receiver if the very first file-list
3345: * has exactly one item in it. */
3346: void recv_additional_file_list(int f)
3347: {
3348: struct file_list *flist;
3349: int ndx = read_ndx(f);
3350: if (ndx == NDX_FLIST_EOF) {
3351: flist_eof = 1;
3352: if (DEBUG_GTE(FLIST, 3))
3353: rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i());
3354: change_local_filter_dir(NULL, 0, 0);
3355: } else {
3356: ndx = NDX_FLIST_OFFSET - ndx;
3357: if (ndx < 0 || ndx >= dir_flist->used) {
3358: ndx = NDX_FLIST_OFFSET - ndx;
3359: rprintf(FERROR,
3360: "[%s] Invalid dir index: %d (%d - %d)\n",
3361: who_am_i(), ndx, NDX_FLIST_OFFSET,
3362: NDX_FLIST_OFFSET - dir_flist->used + 1);
3363: exit_cleanup(RERR_PROTOCOL);
3364: }
3365: if (DEBUG_GTE(FLIST, 3)) {
3366: rprintf(FINFO, "[%s] receiving flist for dir %d\n",
3367: who_am_i(), ndx);
3368: }
3369: flist = recv_file_list(f, ndx);
3370: flist->parent_ndx = ndx;
3371: }
3372: }
3373:
3374: /* Search for an identically-named item in the file list. Note that the
3375: * items must agree in their directory-ness, or no match is returned. */
3376: int flist_find(struct file_list *flist, struct file_struct *f)
3377: {
3378: int low = flist->low, high = flist->high;
3379: int diff, mid, mid_up;
3380:
3381: while (low <= high) {
3382: mid = (low + high) / 2;
3383: if (F_IS_ACTIVE(flist->sorted[mid]))
3384: mid_up = mid;
3385: else {
3386: /* Scan for the next non-empty entry using the cached
3387: * distance values. If the value isn't fully up-to-
3388: * date, update it. */
3389: mid_up = mid + F_DEPTH(flist->sorted[mid]);
3390: if (!F_IS_ACTIVE(flist->sorted[mid_up])) {
3391: do {
3392: mid_up += F_DEPTH(flist->sorted[mid_up]);
3393: } while (!F_IS_ACTIVE(flist->sorted[mid_up]));
3394: F_DEPTH(flist->sorted[mid]) = mid_up - mid;
3395: }
3396: if (mid_up > high) {
3397: /* If there's nothing left above us, set high to
3398: * a non-empty entry below us and continue. */
3399: high = mid - (int)flist->sorted[mid]->len32;
3400: if (!F_IS_ACTIVE(flist->sorted[high])) {
3401: do {
3402: high -= (int)flist->sorted[high]->len32;
3403: } while (!F_IS_ACTIVE(flist->sorted[high]));
3404: flist->sorted[mid]->len32 = mid - high;
3405: }
3406: continue;
3407: }
3408: }
3409: diff = f_name_cmp(flist->sorted[mid_up], f);
3410: if (diff == 0) {
3411: if (protocol_version < 29
3412: && S_ISDIR(flist->sorted[mid_up]->mode)
3413: != S_ISDIR(f->mode))
3414: return -1;
3415: return mid_up;
3416: }
3417: if (diff < 0)
3418: low = mid_up + 1;
3419: else
3420: high = mid - 1;
3421: }
3422: return -1;
3423: }
3424:
3425: /* Search for a name in the file list. You must specify want_dir_match as:
3426: * 1=match directories, 0=match non-directories, or -1=match either. */
3427: int flist_find_name(struct file_list *flist, const char *fname, int want_dir_match)
3428: {
3429: static struct file_struct *f;
3430: char fbuf[MAXPATHLEN];
3431: const char *slash = strrchr(fname, '/');
3432: const char *basename = slash ? slash+1 : fname;
3433:
3434: if (!f)
3435: f = (struct file_struct*)new_array(char, FILE_STRUCT_LEN + MAXPATHLEN + 1);
3436:
3437: memset(f, 0, FILE_STRUCT_LEN);
3438: memcpy((void*)f->basename, basename, strlen(basename)+1);
3439:
3440: if (slash) {
3441: strlcpy(fbuf, fname, slash - fname + 1);
3442: f->dirname = fbuf;
3443: } else
3444: f->dirname = NULL;
3445:
3446: f->mode = want_dir_match > 0 ? S_IFDIR : S_IFREG;
3447:
3448: if (want_dir_match < 0)
3449: return flist_find_ignore_dirness(flist, f);
3450: return flist_find(flist, f);
3451: }
3452:
3453: /* Search for an identically-named item in the file list. Differs from
3454: * flist_find in that an item that agrees with "f" in directory-ness is
3455: * preferred but one that does not is still found. */
3456: int flist_find_ignore_dirness(struct file_list *flist, struct file_struct *f)
3457: {
3458: mode_t save_mode;
3459: int ndx;
3460:
3461: /* First look for an item that agrees in directory-ness. */
3462: ndx = flist_find(flist, f);
3463: if (ndx >= 0)
3464: return ndx;
3465:
3466: /* Temporarily flip f->mode to look for an item of opposite
3467: * directory-ness. */
3468: save_mode = f->mode;
3469: f->mode = S_ISDIR(f->mode) ? S_IFREG : S_IFDIR;
3470: ndx = flist_find(flist, f);
3471: f->mode = save_mode;
3472: return ndx;
3473: }
3474:
3475: /*
3476: * Free up any resources a file_struct has allocated
3477: * and clear the file.
3478: */
3479: void clear_file(struct file_struct *file)
3480: {
3481: /* The +1 zeros out the first char of the basename. */
3482: memset(file, 0, FILE_STRUCT_LEN + 1);
3483: /* In an empty entry, F_DEPTH() is an offset to the next non-empty
3484: * entry. Likewise for len32 in the opposite direction. We assume
3485: * that we're alone for now since flist_find() will adjust the counts
3486: * it runs into that aren't up-to-date. */
3487: file->len32 = F_DEPTH(file) = 1;
3488: }
3489:
3490: /* Allocate a new file list. */
3491: static struct file_list *flist_new(int flags, const char *msg)
3492: {
3493: struct file_list *flist;
3494:
3495: flist = new0(struct file_list);
3496:
3497: if (flags & FLIST_TEMP) {
3498: if (!(flist->file_pool = pool_create(SMALL_EXTENT, 0, _out_of_memory, POOL_INTERN)))
3499: out_of_memory(msg);
3500: } else {
3501: /* This is a doubly linked list with prev looping back to
3502: * the end of the list, but the last next pointer is NULL. */
3503: if (!first_flist) {
3504: if (!(flist->file_pool = pool_create(NORMAL_EXTENT, 0, _out_of_memory, POOL_INTERN)))
3505: out_of_memory(msg);
3506:
3507: flist->ndx_start = flist->flist_num = inc_recurse ? 1 : 0;
3508:
3509: first_flist = cur_flist = flist->prev = flist;
3510: } else {
3511: struct file_list *prev = first_flist->prev;
3512:
3513: flist->file_pool = first_flist->file_pool;
3514:
3515: flist->ndx_start = prev->ndx_start + prev->used + 1;
3516: flist->flist_num = prev->flist_num + 1;
3517:
3518: flist->prev = prev;
3519: prev->next = first_flist->prev = flist;
3520: }
3521: flist->pool_boundary = pool_boundary(flist->file_pool, 0);
3522: flist_cnt++;
3523: }
3524:
3525: if (use_db && (!inc_recurse || flist_eof))
3526: db_disconnect(True);
3527:
3528: return flist;
3529: }
3530:
3531: /* Free up all elements in a flist. */
3532: void flist_free(struct file_list *flist)
3533: {
3534: if (!flist->prev) {
3535: /* Was FLIST_TEMP dir-list. */
3536: } else if (flist == flist->prev) {
3537: first_flist = cur_flist = NULL;
3538: file_total = 0;
3539: flist_cnt = 0;
3540: } else {
3541: if (flist == cur_flist)
3542: cur_flist = flist->next;
3543: if (flist == first_flist)
3544: first_flist = first_flist->next;
3545: else {
3546: flist->prev->next = flist->next;
3547: if (!flist->next)
3548: flist->next = first_flist;
3549: }
3550: flist->next->prev = flist->prev;
3551: file_total -= flist->used;
3552: flist_cnt--;
3553: }
3554:
3555: if (!flist->prev || !flist_cnt)
3556: pool_destroy(flist->file_pool);
3557: else
3558: pool_free_old(flist->file_pool, flist->pool_boundary);
3559:
3560: if (flist->sorted && flist->sorted != flist->files)
3561: free(flist->sorted);
3562: free(flist->files);
3563: free(flist);
3564: }
3565:
3566: /* This routine ensures we don't have any duplicate names in our file list.
3567: * duplicate names can cause corruption because of the pipelining. */
3568: static void flist_sort_and_clean(struct file_list *flist, int flags)
3569: {
3570: char fbuf[MAXPATHLEN];
3571: int i, prev_i;
3572:
3573: if (!flist)
3574: return;
3575: if (flist->used == 0) {
3576: flist->high = -1;
3577: flist->low = 0;
3578: return;
3579: }
3580:
3581: fsort(flist->sorted, flist->used);
3582:
3583: if (!am_sender || inc_recurse) {
3584: for (i = prev_i = 0; i < flist->used; i++) {
3585: if (F_IS_ACTIVE(flist->sorted[i])) {
3586: prev_i = i;
3587: break;
3588: }
3589: }
3590: flist->low = prev_i;
3591: } else {
3592: i = prev_i = flist->used - 1;
3593: flist->low = 0;
3594: }
3595:
3596: while (++i < flist->used) {
3597: int j;
3598: struct file_struct *file = flist->sorted[i];
3599:
3600: if (!F_IS_ACTIVE(file))
3601: continue;
3602: if (f_name_cmp(file, flist->sorted[prev_i]) == 0)
3603: j = prev_i;
3604: else if (protocol_version >= 29 && S_ISDIR(file->mode)) {
3605: int save_mode = file->mode;
3606: /* Make sure that this directory doesn't duplicate a
3607: * non-directory earlier in the list. */
3608: flist->high = prev_i;
3609: file->mode = S_IFREG;
3610: j = flist_find(flist, file);
3611: file->mode = save_mode;
3612: } else
3613: j = -1;
3614: if (j >= 0) {
3615: int keep, drop;
3616: /* If one is a dir and the other is not, we want to
3617: * keep the dir because it might have contents in the
3618: * list. Otherwise keep the first one. */
3619: if (S_ISDIR(file->mode) || flags & CLEAN_KEEP_LAST) {
3620: struct file_struct *fp = flist->sorted[j];
3621: if (!S_ISDIR(fp->mode))
3622: keep = i, drop = j;
3623: else {
3624: if (am_sender)
3625: file->flags |= FLAG_DUPLICATE;
3626: else { /* Make sure we merge our vital flags. */
3627: fp->flags |= file->flags & (FLAG_TOP_DIR|FLAG_CONTENT_DIR);
3628: fp->flags &= file->flags | ~FLAG_IMPLIED_DIR;
3629: }
3630: keep = j, drop = i;
3631: }
3632: } else
3633: keep = j, drop = i;
3634:
3635: if (!am_sender || flags & CLEAN_KEEP_LAST) {
3636: if (DEBUG_GTE(DUP, 1) && !(flags & CLEAN_KEEP_LAST)) {
3637: rprintf(FINFO,
3638: "removing duplicate name %s from file list (%d)\n",
3639: f_name(file, fbuf), drop + flist->ndx_start);
3640: }
3641: clear_file(flist->sorted[drop]);
3642: }
3643:
3644: if (keep == i) {
3645: if (flist->low == drop) {
3646: for (j = drop + 1;
3647: j < i && !F_IS_ACTIVE(flist->sorted[j]);
3648: j++) {}
3649: flist->low = j;
3650: }
3651: prev_i = i;
3652: }
3653: } else
3654: prev_i = i;
3655: }
3656: flist->high = prev_i;
3657:
3658: if (flags & CLEAN_STRIP_ROOT) {
3659: /* We need to strip off the leading slashes for relative
3660: * paths, but this must be done _after_ the sorting phase. */
3661: for (i = flist->low; i <= flist->high; i++) {
3662: struct file_struct *file = flist->sorted[i];
3663:
3664: if (!file->dirname)
3665: continue;
3666: while (*file->dirname == '/')
3667: file->dirname++;
3668: if (!*file->dirname)
3669: file->dirname = NULL;
3670: }
3671: }
3672:
3673: if (prune_empty_dirs && !am_sender) {
3674: int j, prev_depth = 0;
3675:
3676: prev_i = 0; /* It's OK that this isn't really true. */
3677:
3678: for (i = flist->low; i <= flist->high; i++) {
3679: struct file_struct *fp, *file = flist->sorted[i];
3680:
3681: /* This temporarily abuses the F_DEPTH() value for a
3682: * directory that is in a chain that might get pruned.
3683: * We restore the old value if it gets a reprieve. */
3684: if (S_ISDIR(file->mode) && F_DEPTH(file)) {
3685: /* Dump empty dirs when coming back down. */
3686: for (j = prev_depth; j >= F_DEPTH(file); j--) {
3687: fp = flist->sorted[prev_i];
3688: if (F_DEPTH(fp) >= 0)
3689: break;
3690: prev_i = -F_DEPTH(fp)-1;
3691: clear_file(fp);
3692: }
3693: prev_depth = F_DEPTH(file);
3694: if (is_excluded(f_name(file, fbuf), 1, ALL_FILTERS)) {
3695: /* Keep dirs through this dir. */
3696: for (j = prev_depth-1; ; j--) {
3697: fp = flist->sorted[prev_i];
3698: if (F_DEPTH(fp) >= 0)
3699: break;
3700: prev_i = -F_DEPTH(fp)-1;
3701: F_DEPTH(fp) = j;
3702: }
3703: } else
3704: F_DEPTH(file) = -prev_i-1;
3705: prev_i = i;
3706: } else {
3707: /* Keep dirs through this non-dir. */
3708: for (j = prev_depth; ; j--) {
3709: fp = flist->sorted[prev_i];
3710: if (F_DEPTH(fp) >= 0)
3711: break;
3712: prev_i = -F_DEPTH(fp)-1;
3713: F_DEPTH(fp) = j;
3714: }
3715: }
3716: }
3717: /* Dump all remaining empty dirs. */
3718: while (1) {
3719: struct file_struct *fp = flist->sorted[prev_i];
3720: if (F_DEPTH(fp) >= 0)
3721: break;
3722: prev_i = -F_DEPTH(fp)-1;
3723: clear_file(fp);
3724: }
3725:
3726: for (i = flist->low; i <= flist->high; i++) {
3727: if (F_IS_ACTIVE(flist->sorted[i]))
3728: break;
3729: }
3730: flist->low = i;
3731: for (i = flist->high; i >= flist->low; i--) {
3732: if (F_IS_ACTIVE(flist->sorted[i]))
3733: break;
3734: }
3735: flist->high = i;
3736: }
3737: }
3738:
3739: static void output_flist(struct file_list *flist)
3740: {
3741: char uidbuf[16], gidbuf[16], depthbuf[16];
3742: struct file_struct *file;
3743: const char *root, *dir, *slash, *name, *trail;
3744: const char *who = who_am_i();
3745: int i;
3746:
3747: rprintf(FINFO, "[%s] flist start=%d, used=%d, low=%d, high=%d\n",
3748: who, flist->ndx_start, flist->used, flist->low, flist->high);
3749: for (i = 0; i < flist->used; i++) {
3750: file = flist->files[i];
3751: if ((am_root || am_sender) && uid_ndx) {
3752: snprintf(uidbuf, sizeof uidbuf, " uid=%u",
3753: F_OWNER(file));
3754: } else
3755: *uidbuf = '\0';
3756: if (gid_ndx) {
3757: static char parens[] = "(\0)\0\0\0";
3758: char *pp = parens + (file->flags & FLAG_SKIP_GROUP ? 0 : 3);
3759: snprintf(gidbuf, sizeof gidbuf, " gid=%s%u%s",
3760: pp, F_GROUP(file), pp + 2);
3761: } else
3762: *gidbuf = '\0';
3763: if (!am_sender)
3764: snprintf(depthbuf, sizeof depthbuf, "%d", F_DEPTH(file));
3765: if (F_IS_ACTIVE(file)) {
3766: root = am_sender ? NS(F_PATHNAME(file)) : depthbuf;
3767: if ((dir = file->dirname) == NULL)
3768: dir = slash = "";
3769: else
3770: slash = "/";
3771: name = file->basename;
3772: trail = S_ISDIR(file->mode) ? "/" : "";
3773: } else
3774: root = dir = slash = name = trail = "";
3775: rprintf(FINFO,
3776: "[%s] i=%d %s %s%s%s%s mode=0%o len=%s%s%s flags=%x\n",
3777: who, i + flist->ndx_start,
3778: root, dir, slash, name, trail,
3779: (int)file->mode, comma_num(F_LENGTH(file)),
3780: uidbuf, gidbuf, file->flags);
3781: }
3782: }
3783:
3784: enum fnc_state { s_DIR, s_SLASH, s_BASE, s_TRAILING };
3785: enum fnc_type { t_PATH, t_ITEM };
3786:
3787: static int found_prefix;
3788:
3789: /* Compare the names of two file_struct entities, similar to how strcmp()
3790: * would do if it were operating on the joined strings.
3791: *
3792: * Some differences beginning with protocol_version 29: (1) directory names
3793: * are compared with an assumed trailing slash so that they compare in a
3794: * way that would cause them to sort immediately prior to any content they
3795: * may have; (2) a directory of any name compares after a non-directory of
3796: * any name at the same depth; (3) a directory with name "." compares prior
3797: * to anything else. These changes mean that a directory and a non-dir
3798: * with the same name will not compare as equal (protocol_version >= 29).
3799: *
3800: * The dirname component can be an empty string, but the basename component
3801: * cannot (and never is in the current codebase). The basename component
3802: * may be NULL (for a removed item), in which case it is considered to be
3803: * after any existing item. */
3804: int f_name_cmp(const struct file_struct *f1, const struct file_struct *f2)
3805: {
3806: int dif;
3807: const uchar *c1, *c2;
3808: uchar ch1, ch2;
3809: enum fnc_state state1, state2;
3810: enum fnc_type type1, type2;
3811: enum fnc_type t_path = protocol_version >= 29 ? t_PATH : t_ITEM;
3812:
3813: if (!f1 || !F_IS_ACTIVE(f1)) {
3814: if (!f2 || !F_IS_ACTIVE(f2))
3815: return 0;
3816: return -1;
3817: }
3818: if (!f2 || !F_IS_ACTIVE(f2))
3819: return 1;
3820:
3821: c1 = (uchar*)f1->dirname;
3822: c2 = (uchar*)f2->dirname;
3823: if (c1 == c2)
3824: c1 = c2 = NULL;
3825: if (!c1) {
3826: type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
3827: c1 = (const uchar*)f1->basename;
3828: if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
3829: type1 = t_ITEM;
3830: state1 = s_TRAILING;
3831: c1 = (uchar*)"";
3832: } else
3833: state1 = s_BASE;
3834: } else {
3835: type1 = t_path;
3836: state1 = s_DIR;
3837: }
3838: if (!c2) {
3839: type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
3840: c2 = (const uchar*)f2->basename;
3841: if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
3842: type2 = t_ITEM;
3843: state2 = s_TRAILING;
3844: c2 = (uchar*)"";
3845: } else
3846: state2 = s_BASE;
3847: } else {
3848: type2 = t_path;
3849: state2 = s_DIR;
3850: }
3851:
3852: if (type1 != type2)
3853: return type1 == t_PATH ? 1 : -1;
3854:
3855: do {
3856: if (!*c1) {
3857: switch (state1) {
3858: case s_DIR:
3859: state1 = s_SLASH;
3860: c1 = (uchar*)"/";
3861: break;
3862: case s_SLASH:
3863: type1 = S_ISDIR(f1->mode) ? t_path : t_ITEM;
3864: c1 = (const uchar*)f1->basename;
3865: if (type1 == t_PATH && *c1 == '.' && !c1[1]) {
3866: type1 = t_ITEM;
3867: state1 = s_TRAILING;
3868: c1 = (uchar*)"";
3869: } else
3870: state1 = s_BASE;
3871: break;
3872: case s_BASE:
3873: state1 = s_TRAILING;
3874: if (type1 == t_PATH) {
3875: c1 = (uchar*)"/";
3876: break;
3877: }
3878: /* FALL THROUGH */
3879: case s_TRAILING:
3880: type1 = t_ITEM;
3881: break;
3882: }
3883: if (*c2 && type1 != type2)
3884: return type1 == t_PATH ? 1 : -1;
3885: }
3886: if (!*c2) {
3887: switch (state2) {
3888: case s_DIR:
3889: state2 = s_SLASH;
3890: c2 = (uchar*)"/";
3891: break;
3892: case s_SLASH:
3893: type2 = S_ISDIR(f2->mode) ? t_path : t_ITEM;
3894: c2 = (const uchar*)f2->basename;
3895: if (type2 == t_PATH && *c2 == '.' && !c2[1]) {
3896: type2 = t_ITEM;
3897: state2 = s_TRAILING;
3898: c2 = (uchar*)"";
3899: } else
3900: state2 = s_BASE;
3901: break;
3902: case s_BASE:
3903: state2 = s_TRAILING;
3904: if (type2 == t_PATH) {
3905: c2 = (uchar*)"/";
3906: break;
3907: }
3908: /* FALL THROUGH */
3909: case s_TRAILING:
3910: found_prefix = 1;
3911: if (!*c1)
3912: return 0;
3913: type2 = t_ITEM;
3914: break;
3915: }
3916: if (type1 != type2)
3917: return type1 == t_PATH ? 1 : -1;
3918: }
3919: ch1 = *c1++;
3920: ch2 = *c2++;
3921: if (ignore_case) {
3922: if (isupper(ch1))
3923: ch1 = tolower(ch1);
3924: if (isupper(ch2))
3925: ch2 = tolower(ch2);
3926: }
3927: } while ((dif = (int)ch1 - (int)ch2) == 0);
3928:
3929: return dif;
3930: }
3931:
3932: /* Returns 1 if f1's filename has all of f2's filename as a prefix. This does
3933: * not match if f2's basename is not an exact match of a path element in f1.
3934: * E.g. /path/foo is not a prefix of /path/foobar/baz, but /path/foobar is. */
3935: int f_name_has_prefix(const struct file_struct *f1, const struct file_struct *f2)
3936: {
3937: found_prefix = 0;
3938: f_name_cmp(f1, f2);
3939: return found_prefix;
3940: }
3941:
3942: char *f_name_buf(void)
3943: {
3944: static char names[5][MAXPATHLEN];
3945: static unsigned int n;
3946:
3947: n = (n + 1) % (sizeof names / sizeof names[0]);
3948:
3949: return names[n];
3950: }
3951:
3952: /* Return a copy of the full filename of a flist entry, using the indicated
3953: * buffer or one of 5 static buffers if fbuf is NULL. No size-checking is
3954: * done because we checked the size when creating the file_struct entry.
3955: */
3956: char *f_name(const struct file_struct *f, char *fbuf)
3957: {
3958: if (!f || !F_IS_ACTIVE(f))
3959: return NULL;
3960:
3961: if (!fbuf)
3962: fbuf = f_name_buf();
3963:
3964: if (f->dirname) {
3965: int len = strlen(f->dirname);
3966: memcpy(fbuf, f->dirname, len);
3967: fbuf[len] = '/';
3968: strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
3969: } else
3970: strlcpy(fbuf, f->basename, MAXPATHLEN);
3971:
3972: return fbuf;
3973: }
3974:
3975: /* Do a non-recursive scan of the named directory, possibly ignoring all
3976: * exclude rules except for the daemon's. If "dlen" is >=0, it is the length
3977: * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
3978: * buffer (the functions we call will append names onto the end, but the old
3979: * dir value will be restored on exit). */
3980: struct file_list *get_dirlist(char *dirname, int dlen, int flags)
3981: {
3982: struct file_list *dirlist;
3983: char dirbuf[MAXPATHLEN];
3984: int save_recurse = recurse;
3985: int save_xfer_dirs = xfer_dirs;
3986: int save_prune_empty_dirs = prune_empty_dirs;
3987: int senddir_fd = flags & GDL_IGNORE_FILTER_RULES ? -2 : -1;
3988: int senddir_flags = FLAG_CONTENT_DIR;
3989:
3990: if (dlen < 0) {
3991: dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
3992: if (dlen >= MAXPATHLEN)
3993: return NULL;
3994: dirname = dirbuf;
3995: }
3996:
3997: dirlist = flist_new(FLIST_TEMP, "get_dirlist");
3998:
3999: if (flags & GDL_PERHAPS_DIR)
4000: senddir_flags |= FLAG_PERHAPS_DIR;
4001:
4002: recurse = 0;
4003: xfer_dirs = 1;
4004: send_directory(senddir_fd, dirlist, dirname, dlen, senddir_flags);
4005: xfer_dirs = save_xfer_dirs;
4006: recurse = save_recurse;
4007: if (INFO_GTE(PROGRESS, 1))
4008: flist_count_offset += dirlist->used;
4009:
4010: prune_empty_dirs = 0;
4011: dirlist->sorted = dirlist->files;
4012: flist_sort_and_clean(dirlist, 0);
4013: prune_empty_dirs = save_prune_empty_dirs;
4014:
4015: if (DEBUG_GTE(FLIST, 3))
4016: output_flist(dirlist);
4017:
4018: return dirlist;
4019: }
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