Commit | Line | Data |
---|---|---|
7a2fd68b | 1 | /* |
0f78b815 WD |
2 | * Routines common to more than one of the rsync processes. |
3 | * | |
4 | * Copyright (C) 1996 Andrew Tridgell | |
5 | * Copyright (C) 1996 Paul Mackerras | |
b3bf9b9d | 6 | * Copyright (C) 2003-2009 Wayne Davison |
0f78b815 WD |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
8e41b68e WD |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 3 of the License, or | |
11 | * (at your option) any later version. | |
0f78b815 WD |
12 | * |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
e7c67065 | 18 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 19 | * with this program; if not, visit the http://fsf.org website. |
0f78b815 | 20 | */ |
c627d613 | 21 | |
2f03f956 | 22 | #include "rsync.h" |
1b42f628 | 23 | #include "ifuncs.h" |
ceccbacc WD |
24 | #if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET |
25 | #include <libcharset.h> | |
26 | #elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO | |
27 | #include <langinfo.h> | |
28 | #endif | |
43a481dc | 29 | |
c627d613 | 30 | extern int dry_run; |
1c3344a1 | 31 | extern int preserve_acls; |
16edf865 | 32 | extern int preserve_xattrs; |
9b499e95 | 33 | extern int preserve_perms; |
81284832 | 34 | extern int preserve_executability; |
2f03f956 | 35 | extern int preserve_times; |
7b8356d0 | 36 | extern int am_root; |
794b0a03 | 37 | extern int am_server; |
c3e5e585 | 38 | extern int am_sender; |
82b2a31a | 39 | extern int am_receiver; |
c3e5e585 | 40 | extern int am_generator; |
ed9d969c | 41 | extern int am_starting_up; |
e0f4a661 | 42 | extern int allow_8bit_chars; |
b675ba6f | 43 | extern int protocol_version; |
9b25ef35 WD |
44 | extern int uid_ndx; |
45 | extern int gid_ndx; | |
3ea6e0e7 | 46 | extern int inc_recurse; |
c786a7ae | 47 | extern int inplace; |
f3d6d480 | 48 | extern int flist_eof; |
ce827c3e | 49 | extern int file_old_total; |
81b07870 | 50 | extern int keep_dirlinks; |
2f03f956 | 51 | extern int make_backups; |
f3d6d480 | 52 | extern struct file_list *cur_flist, *first_flist, *dir_flist; |
94d3725c | 53 | extern struct chmod_mode_struct *daemon_chmod_modes; |
332cf6df WD |
54 | #ifdef ICONV_OPTION |
55 | extern char *iconv_opt; | |
56 | #endif | |
fe055c71 | 57 | |
332cf6df | 58 | #ifdef ICONV_CONST |
ceccbacc | 59 | iconv_t ic_chck = (iconv_t)-1; |
2ac97930 | 60 | # ifdef ICONV_OPTION |
332cf6df | 61 | iconv_t ic_send = (iconv_t)-1, ic_recv = (iconv_t)-1; |
2ac97930 | 62 | # endif |
ceccbacc | 63 | |
2a62f5ee | 64 | static const char *default_charset(void) |
ceccbacc | 65 | { |
2ac97930 | 66 | # if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET |
ceccbacc | 67 | return locale_charset(); |
2ac97930 | 68 | # elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO |
7fc87d2d | 69 | return nl_langinfo(CODESET); |
2ac97930 | 70 | # else |
ceccbacc | 71 | return ""; /* Works with (at the very least) gnu iconv... */ |
2ac97930 | 72 | # endif |
ceccbacc WD |
73 | } |
74 | ||
6191429b | 75 | void setup_iconv(void) |
ceccbacc | 76 | { |
332cf6df WD |
77 | const char *defset = default_charset(); |
78 | # ifdef ICONV_OPTION | |
79 | const char *charset; | |
80 | char *cp; | |
2ac97930 | 81 | # endif |
332cf6df | 82 | |
e0f4a661 | 83 | if (!am_server && !allow_8bit_chars) { |
e0f4a661 WD |
84 | /* It's OK if this fails... */ |
85 | ic_chck = iconv_open(defset, defset); | |
ceccbacc | 86 | |
c9f540f3 | 87 | if (DEBUG_GTE(ICONV, 2)) { |
e0f4a661 WD |
88 | if (ic_chck == (iconv_t)-1) { |
89 | rprintf(FINFO, | |
c9f540f3 WD |
90 | "msg checking via isprint()" |
91 | " (iconv_open(\"%s\", \"%s\") errno: %d)\n", | |
e0f4a661 WD |
92 | defset, defset, errno); |
93 | } else { | |
94 | rprintf(FINFO, | |
c9f540f3 WD |
95 | "msg checking charset: %s\n", |
96 | defset); | |
e0f4a661 | 97 | } |
7fc87d2d | 98 | } |
c9f540f3 WD |
99 | } else |
100 | ic_chck = (iconv_t)-1; | |
332cf6df WD |
101 | |
102 | # ifdef ICONV_OPTION | |
103 | if (!iconv_opt) | |
104 | return; | |
105 | ||
106 | if ((cp = strchr(iconv_opt, ',')) != NULL) { | |
107 | if (am_server) /* A local transfer needs this. */ | |
108 | iconv_opt = cp + 1; | |
109 | else | |
110 | *cp = '\0'; | |
111 | } | |
112 | ||
113 | if (!*iconv_opt || (*iconv_opt == '.' && iconv_opt[1] == '\0')) | |
114 | charset = defset; | |
115 | else | |
116 | charset = iconv_opt; | |
117 | ||
118 | if ((ic_send = iconv_open(UTF8_CHARSET, charset)) == (iconv_t)-1) { | |
119 | rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n", | |
120 | UTF8_CHARSET, charset); | |
121 | exit_cleanup(RERR_UNSUPPORTED); | |
122 | } | |
123 | ||
124 | if ((ic_recv = iconv_open(charset, UTF8_CHARSET)) == (iconv_t)-1) { | |
125 | rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n", | |
126 | charset, UTF8_CHARSET); | |
127 | exit_cleanup(RERR_UNSUPPORTED); | |
128 | } | |
129 | ||
c9f540f3 WD |
130 | if (DEBUG_GTE(ICONV, 1)) { |
131 | rprintf(FINFO, "[%s] charset: %s\n", | |
132 | who_am_i(), *charset ? charset : "[LOCALE]"); | |
332cf6df WD |
133 | } |
134 | # endif | |
ceccbacc | 135 | } |
2ac97930 | 136 | |
907e6a32 WD |
137 | /* This function converts the chars in the "in" xbuf into characters in the |
138 | * "out" xbuf. The ".len" chars of the "in" xbuf is used starting from its | |
139 | * ".pos". The ".size" of the "out" xbuf restricts how many characters can | |
140 | * be stored, starting at its ".pos+.len" position. Note that the last byte | |
141 | * of the "out" xbuf is not used, which reserves space for a trailing '\0' | |
142 | * (though it is up to the caller to store a trailing '\0', as needed). | |
143 | * | |
2ac97930 WD |
144 | * We return a 0 on success or a -1 on error. An error also sets errno to |
145 | * E2BIG, EILSEQ, or EINVAL (see below); otherwise errno will be set to 0. | |
907e6a32 WD |
146 | * The "in" xbuf is altered to update ".pos" and ".len". The "out" xbuf has |
147 | * data appended, and its ".len" incremented (see below for a ".size" note). | |
148 | * | |
149 | * If ICB_CIRCULAR_OUT is set in "flags", the chars going into the "out" xbuf | |
150 | * can wrap around to the start, and the xbuf may have its ".size" reduced | |
151 | * (presumably by 1 byte) if the iconv code doesn't have space to store a | |
152 | * multi-byte character at the physical end of the ".buf" (though no reducing | |
d03c0b1e | 153 | * happens if ".pos" is <= 1, since there is no room to wrap around). |
907e6a32 WD |
154 | * |
155 | * If ICB_EXPAND_OUT is set in "flags", the "out" xbuf will be allocated if | |
156 | * empty, and (as long as ICB_CIRCULAR_OUT is not set) expanded if too small. | |
157 | * This prevents the return of E2BIG (except for a circular xbuf). | |
158 | * | |
159 | * If ICB_INCLUDE_BAD is set in "flags", any badly-encoded chars are included | |
160 | * verbatim in the "out" xbuf, so EILSEQ will not be returned. | |
161 | * | |
162 | * If ICB_INCLUDE_INCOMPLETE is set in "flags", any incomplete multi-byte | |
163 | * chars are included, which ensures that EINVAL is not returned. | |
164 | * | |
165 | * If ICB_INIT is set, the iconv() conversion state is initialized prior to | |
166 | * processing the characters. */ | |
2ac97930 WD |
167 | int iconvbufs(iconv_t ic, xbuf *in, xbuf *out, int flags) |
168 | { | |
169 | ICONV_CONST char *ibuf; | |
20caffd2 | 170 | size_t icnt, ocnt, opos; |
2ac97930 WD |
171 | char *obuf; |
172 | ||
907e6a32 WD |
173 | if (!out->size && flags & ICB_EXPAND_OUT) { |
174 | size_t siz = ROUND_UP_1024(in->len * 2); | |
175 | alloc_xbuf(out, siz); | |
176 | } else if (out->len+1 >= out->size) { | |
177 | /* There is no room to even start storing data. */ | |
178 | if (!(flags & ICB_EXPAND_OUT) || flags & ICB_CIRCULAR_OUT) { | |
179 | errno = E2BIG; | |
180 | return -1; | |
181 | } | |
182 | realloc_xbuf(out, out->size + ROUND_UP_1024(in->len * 2)); | |
183 | } | |
2ac97930 | 184 | |
d8a7290f | 185 | if (flags & ICB_INIT) |
2ac97930 WD |
186 | iconv(ic, NULL, 0, NULL, 0); |
187 | ||
188 | ibuf = in->buf + in->pos; | |
189 | icnt = in->len; | |
190 | ||
20caffd2 WD |
191 | opos = out->pos + out->len; |
192 | if (flags & ICB_CIRCULAR_OUT) { | |
193 | if (opos >= out->size) { | |
194 | opos -= out->size; | |
907e6a32 WD |
195 | /* We know that out->pos is not 0 due to the "no room" check |
196 | * above, so this can't go "negative". */ | |
20caffd2 WD |
197 | ocnt = out->pos - opos - 1; |
198 | } else { | |
907e6a32 WD |
199 | /* Allow the use of all bytes to the physical end of the buffer |
200 | * unless pos is 0, in which case we reserve our trailing '\0'. */ | |
201 | ocnt = out->size - opos - (out->pos ? 0 : 1); | |
20caffd2 WD |
202 | } |
203 | } else | |
204 | ocnt = out->size - opos - 1; | |
205 | obuf = out->buf + opos; | |
2ac97930 WD |
206 | |
207 | while (icnt) { | |
208 | while (iconv(ic, &ibuf, &icnt, &obuf, &ocnt) == (size_t)-1) { | |
209 | if (errno == EINTR) | |
210 | continue; | |
211 | if (errno == EINVAL) { | |
212 | if (!(flags & ICB_INCLUDE_INCOMPLETE)) | |
213 | goto finish; | |
214 | } else if (errno == EILSEQ) { | |
215 | if (!(flags & ICB_INCLUDE_BAD)) | |
216 | goto finish; | |
907e6a32 WD |
217 | } else if (errno == E2BIG) { |
218 | size_t siz; | |
20caffd2 | 219 | opos = obuf - out->buf; |
907e6a32 WD |
220 | if (flags & ICB_CIRCULAR_OUT && out->pos > 1 && opos > out->pos) { |
221 | /* We are in a divided circular buffer at the physical | |
222 | * end with room to wrap to the start. If iconv() refused | |
223 | * to use one or more trailing bytes in the buffer, we | |
224 | * set the size to ignore the unused bytes. */ | |
225 | if (opos < out->size) | |
226 | reduce_iobuf_size(out, opos); | |
227 | obuf = out->buf; | |
228 | ocnt = out->pos - 1; | |
229 | continue; | |
20caffd2 WD |
230 | } |
231 | if (!(flags & ICB_EXPAND_OUT) || flags & ICB_CIRCULAR_OUT) { | |
2ac97930 WD |
232 | errno = E2BIG; |
233 | goto finish; | |
234 | } | |
907e6a32 WD |
235 | siz = ROUND_UP_1024(in->len * 2); |
236 | realloc_xbuf(out, out->size + siz); | |
2ac97930 | 237 | obuf = out->buf + opos; |
907e6a32 | 238 | ocnt += siz; |
2ac97930 | 239 | continue; |
907e6a32 WD |
240 | } else { |
241 | rsyserr(FERROR, errno, "unexpected error from iconv()"); | |
242 | exit_cleanup(RERR_UNSUPPORTED); | |
2ac97930 WD |
243 | } |
244 | *obuf++ = *ibuf++; | |
245 | ocnt--, icnt--; | |
246 | } | |
247 | } | |
248 | ||
249 | errno = 0; | |
250 | ||
251 | finish: | |
20caffd2 | 252 | opos = obuf - out->buf; |
907e6a32 WD |
253 | if (flags & ICB_CIRCULAR_OUT && opos < out->pos) |
254 | opos += out->size; | |
20caffd2 WD |
255 | out->len = opos - out->pos; |
256 | ||
2ac97930 WD |
257 | in->len = icnt; |
258 | in->pos = ibuf - in->buf; | |
2ac97930 WD |
259 | |
260 | return errno ? -1 : 0; | |
261 | } | |
ceccbacc | 262 | #endif |
fe055c71 | 263 | |
53936ef9 WD |
264 | void send_protected_args(int fd, char *args[]) |
265 | { | |
7abcfd85 | 266 | int i; |
53936ef9 | 267 | #ifdef ICONV_OPTION |
7abcfd85 | 268 | int convert = ic_send != (iconv_t)-1; |
53936ef9 WD |
269 | xbuf outbuf, inbuf; |
270 | ||
271 | if (convert) | |
272 | alloc_xbuf(&outbuf, 1024); | |
273 | #endif | |
274 | ||
275 | for (i = 0; args[i]; i++) {} /* find first NULL */ | |
276 | args[i] = "rsync"; /* set a new arg0 */ | |
951e826b | 277 | if (DEBUG_GTE(CMD, 1)) |
53936ef9 WD |
278 | print_child_argv("protected args:", args + i + 1); |
279 | do { | |
08b7c3ed WD |
280 | if (!args[i][0]) |
281 | write_buf(fd, ".", 2); | |
53936ef9 | 282 | #ifdef ICONV_OPTION |
08b7c3ed | 283 | else if (convert) { |
53936ef9 WD |
284 | INIT_XBUF_STRLEN(inbuf, args[i]); |
285 | iconvbufs(ic_send, &inbuf, &outbuf, | |
d8a7290f | 286 | ICB_EXPAND_OUT | ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE | ICB_INIT); |
53936ef9 WD |
287 | outbuf.buf[outbuf.len] = '\0'; |
288 | write_buf(fd, outbuf.buf, outbuf.len + 1); | |
289 | outbuf.len = 0; | |
08b7c3ed | 290 | } |
53936ef9 | 291 | #endif |
08b7c3ed | 292 | else |
53936ef9 WD |
293 | write_buf(fd, args[i], strlen(args[i]) + 1); |
294 | } while (args[++i]); | |
295 | write_byte(fd, 0); | |
296 | ||
297 | #ifdef ICONV_OPTION | |
298 | if (convert) | |
299 | free(outbuf.buf); | |
300 | #endif | |
301 | } | |
302 | ||
20caffd2 | 303 | int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr, uchar *type_ptr, |
16edf865 | 304 | char *buf, int *len_ptr) |
d1c178dd | 305 | { |
f3d6d480 WD |
306 | int len, iflags = 0; |
307 | struct file_list *flist; | |
d1c178dd | 308 | uchar fnamecmp_type = FNAMECMP_FNAME; |
951e826b | 309 | int ndx; |
f3d6d480 WD |
310 | |
311 | read_loop: | |
312 | while (1) { | |
9ae7a2cd | 313 | ndx = read_ndx(f_in); |
f3d6d480 | 314 | |
8b3e6052 | 315 | if (ndx >= 0) |
f3d6d480 WD |
316 | break; |
317 | if (ndx == NDX_DONE) | |
318 | return ndx; | |
20caffd2 WD |
319 | if (ndx == NDX_DEL_STATS) { |
320 | read_del_stats(f_in); | |
321 | if (am_sender && am_server) | |
322 | write_del_stats(f_out); | |
323 | continue; | |
324 | } | |
e982d591 WD |
325 | if (!inc_recurse || am_sender) { |
326 | int last; | |
327 | if (first_flist) | |
328 | last = first_flist->prev->ndx_start + first_flist->prev->used - 1; | |
329 | else | |
330 | last = -1; | |
331 | rprintf(FERROR, | |
332 | "Invalid file index: %d (%d - %d) [%s]\n", | |
333 | ndx, NDX_DONE, last, who_am_i()); | |
334 | exit_cleanup(RERR_PROTOCOL); | |
335 | } | |
f3d6d480 WD |
336 | if (ndx == NDX_FLIST_EOF) { |
337 | flist_eof = 1; | |
20caffd2 WD |
338 | if (DEBUG_GTE(FLIST, 3)) |
339 | rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i()); | |
340 | write_int(f_out, NDX_FLIST_EOF); | |
f3d6d480 WD |
341 | continue; |
342 | } | |
343 | ndx = NDX_FLIST_OFFSET - ndx; | |
9decb4d2 | 344 | if (ndx < 0 || ndx >= dir_flist->used) { |
f3d6d480 WD |
345 | ndx = NDX_FLIST_OFFSET - ndx; |
346 | rprintf(FERROR, | |
e982d591 WD |
347 | "Invalid dir index: %d (%d - %d) [%s]\n", |
348 | ndx, NDX_FLIST_OFFSET, | |
349 | NDX_FLIST_OFFSET - dir_flist->used + 1, | |
350 | who_am_i()); | |
f3d6d480 WD |
351 | exit_cleanup(RERR_PROTOCOL); |
352 | } | |
f3d6d480 | 353 | |
951e826b | 354 | if (DEBUG_GTE(FLIST, 2)) { |
1faa1a6d WD |
355 | rprintf(FINFO, "[%s] receiving flist for dir %d\n", |
356 | who_am_i(), ndx); | |
357 | } | |
20caffd2 WD |
358 | /* Send all the data we read for this flist to the generator. */ |
359 | start_flist_forward(ndx); | |
f3d6d480 WD |
360 | flist = recv_file_list(f_in); |
361 | flist->parent_ndx = ndx; | |
362 | stop_flist_forward(); | |
f3d6d480 WD |
363 | } |
364 | ||
365 | iflags = protocol_version >= 29 ? read_shortint(f_in) | |
d1c178dd WD |
366 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
367 | ||
92d02148 WD |
368 | /* Support the protocol-29 keep-alive style. */ |
369 | if (protocol_version < 30 && ndx == cur_flist->used && iflags == ITEM_IS_NEW) { | |
f3d6d480 | 370 | if (am_sender) |
05c36015 | 371 | maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH); |
f3d6d480 WD |
372 | goto read_loop; |
373 | } | |
374 | ||
ce827c3e WD |
375 | flist = flist_for_ndx(ndx, "read_ndx_and_attrs"); |
376 | if (flist != cur_flist) { | |
377 | cur_flist = flist; | |
378 | if (am_sender) { | |
379 | file_old_total = cur_flist->used; | |
380 | for (flist = first_flist; flist != cur_flist; flist = flist->next) | |
381 | file_old_total += flist->used; | |
382 | } | |
383 | } | |
d1c178dd WD |
384 | |
385 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
386 | fnamecmp_type = read_byte(f_in); | |
387 | *type_ptr = fnamecmp_type; | |
388 | ||
389 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
390 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
391 | exit_cleanup(RERR_PROTOCOL); | |
392 | } else { | |
393 | *buf = '\0'; | |
394 | len = -1; | |
395 | } | |
396 | *len_ptr = len; | |
397 | ||
398 | if (iflags & ITEM_TRANSFER) { | |
f3d6d480 | 399 | int i = ndx - cur_flist->ndx_start; |
6755a7d7 | 400 | if (i < 0 || !S_ISREG(cur_flist->files[i]->mode)) { |
d1c178dd WD |
401 | rprintf(FERROR, |
402 | "received request to transfer non-regular file: %d [%s]\n", | |
403 | ndx, who_am_i()); | |
404 | exit_cleanup(RERR_PROTOCOL); | |
405 | } | |
d1c178dd WD |
406 | } |
407 | ||
f3d6d480 WD |
408 | *iflag_ptr = iflags; |
409 | return ndx; | |
d1c178dd WD |
410 | } |
411 | ||
c627d613 AT |
412 | /* |
413 | free a sums struct | |
414 | */ | |
2f03f956 | 415 | void free_sums(struct sum_struct *s) |
c627d613 | 416 | { |
298c10d5 AT |
417 | if (s->sums) free(s->sums); |
418 | free(s); | |
c627d613 AT |
419 | } |
420 | ||
81284832 WD |
421 | /* This is only called when we aren't preserving permissions. Figure out what |
422 | * the permissions should be and return them merged back into the mode. */ | |
1c3344a1 WD |
423 | mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms, |
424 | int exists) | |
81284832 | 425 | { |
67f8a41b | 426 | int new_mode; |
9b499e95 | 427 | /* If the file already exists, we'll return the local permissions, |
81284832 WD |
428 | * possibly tweaked by the --executability option. */ |
429 | if (exists) { | |
67f8a41b | 430 | new_mode = (flist_mode & ~CHMOD_BITS) | (stat_mode & CHMOD_BITS); |
81284832 WD |
431 | if (preserve_executability && S_ISREG(flist_mode)) { |
432 | /* If the source file is executable, grant execute | |
433 | * rights to everyone who can read, but ONLY if the | |
434 | * file isn't already executable. */ | |
435 | if (!(flist_mode & 0111)) | |
67f8a41b WD |
436 | new_mode &= ~0111; |
437 | else if (!(stat_mode & 0111)) | |
438 | new_mode |= (new_mode & 0444) >> 2; | |
81284832 | 439 | } |
67f8a41b | 440 | } else { |
1c3344a1 WD |
441 | /* Apply destination default permissions and turn |
442 | * off special permissions. */ | |
443 | new_mode = flist_mode & (~CHMOD_BITS | dflt_perms); | |
67f8a41b | 444 | } |
67f8a41b | 445 | return new_mode; |
81284832 WD |
446 | } |
447 | ||
13710874 | 448 | int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp, |
16edf865 | 449 | const char *fnamecmp, int flags) |
c627d613 | 450 | { |
667e72a1 | 451 | int updated = 0; |
13710874 | 452 | stat_x sx2; |
460f6b99 | 453 | int change_uid, change_gid; |
519d55a9 | 454 | mode_t new_mode = file->mode; |
2dc7b91d | 455 | int inherit; |
c627d613 | 456 | |
1c3344a1 | 457 | if (!sxp) { |
f227ffe4 WD |
458 | if (dry_run) |
459 | return 1; | |
1c3344a1 | 460 | if (link_stat(fname, &sx2.st, 0) < 0) { |
3f0211b6 | 461 | rsyserr(FERROR_XFER, errno, "stat %s failed", |
d62bcc17 | 462 | full_fname(fname)); |
667e72a1 AT |
463 | return 0; |
464 | } | |
09ca0d15 | 465 | init_stat_x(&sx2); |
1c3344a1 | 466 | sxp = &sx2; |
2dc7b91d WD |
467 | inherit = !preserve_perms; |
468 | } else | |
469 | inherit = !preserve_perms && file->flags & FLAG_DIR_CREATED; | |
470 | ||
471 | if (inherit && S_ISDIR(new_mode) && sxp->st.st_mode & S_ISGID) { | |
472 | /* We just created this directory and its setgid | |
473 | * bit is on, so make sure it stays on. */ | |
474 | new_mode |= S_ISGID; | |
667e72a1 | 475 | } |
c627d613 | 476 | |
e107b6b1 WD |
477 | if (daemon_chmod_modes && !S_ISLNK(new_mode)) |
478 | new_mode = tweak_mode(new_mode, daemon_chmod_modes); | |
479 | ||
1c3344a1 WD |
480 | #ifdef SUPPORT_ACLS |
481 | if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp)) | |
482 | get_acl(fname, sxp); | |
483 | #endif | |
484 | ||
16edf865 | 485 | #ifdef SUPPORT_XATTRS |
9439c0cb | 486 | if (am_root < 0) |
e107b6b1 | 487 | set_stat_xattr(fname, file, new_mode); |
4d7c8e6b WD |
488 | if (preserve_xattrs && fnamecmp) |
489 | set_xattr(fname, file, fnamecmp, sxp); | |
16edf865 WD |
490 | #endif |
491 | ||
2624e005 WD |
492 | if (!preserve_times |
493 | || (!(preserve_times & PRESERVE_DIR_TIMES) && S_ISDIR(sxp->st.st_mode)) | |
494 | || (!(preserve_times & PRESERVE_LINK_TIMES) && S_ISLNK(sxp->st.st_mode))) | |
36119f6e WD |
495 | flags |= ATTRS_SKIP_MTIME; |
496 | if (!(flags & ATTRS_SKIP_MTIME) | |
1c3344a1 | 497 | && cmp_time(sxp->st.st_mtime, file->modtime) != 0) { |
ba342e22 | 498 | int ret = set_modtime(fname, file->modtime, F_MOD_NSEC(file), sxp->st.st_mode); |
c8d34657 | 499 | if (ret < 0) { |
3f0211b6 | 500 | rsyserr(FERROR_XFER, errno, "failed to set times on %s", |
d62bcc17 | 501 | full_fname(fname)); |
1c3344a1 | 502 | goto cleanup; |
667e72a1 | 503 | } |
c8d34657 WD |
504 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
505 | updated = 1; | |
ee39281d | 506 | else |
1ed56a05 | 507 | file->flags |= FLAG_TIME_FAILED; |
667e72a1 AT |
508 | } |
509 | ||
9b25ef35 WD |
510 | change_uid = am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file); |
511 | change_gid = gid_ndx && !(file->flags & FLAG_SKIP_GROUP) | |
858d45f1 | 512 | && sxp->st.st_gid != (gid_t)F_GROUP(file); |
4f5b0756 | 513 | #if !defined HAVE_LCHOWN && !defined CHOWN_MODIFIES_SYMLINK |
2e52ba36 | 514 | if (S_ISLNK(sxp->st.st_mode)) { |
a41a1e87 | 515 | ; |
2e52ba36 | 516 | } else |
a41a1e87 | 517 | #endif |
460f6b99 | 518 | if (change_uid || change_gid) { |
951e826b | 519 | if (DEBUG_GTE(OWN, 1)) { |
ce37eb2d WD |
520 | if (change_uid) { |
521 | rprintf(FINFO, | |
4ade505c WD |
522 | "set uid of %s from %u to %u\n", |
523 | fname, (unsigned)sxp->st.st_uid, F_OWNER(file)); | |
ce37eb2d WD |
524 | } |
525 | if (change_gid) { | |
526 | rprintf(FINFO, | |
4ade505c WD |
527 | "set gid of %s from %u to %u\n", |
528 | fname, (unsigned)sxp->st.st_gid, F_GROUP(file)); | |
ce37eb2d WD |
529 | } |
530 | } | |
87629cf2 WD |
531 | if (am_root >= 0) { |
532 | if (do_lchown(fname, | |
533 | change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid, | |
534 | change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid) != 0) { | |
535 | /* We shouldn't have attempted to change uid | |
536 | * or gid unless have the privilege. */ | |
537 | rsyserr(FERROR_XFER, errno, "%s %s failed", | |
538 | change_uid ? "chown" : "chgrp", | |
539 | full_fname(fname)); | |
540 | goto cleanup; | |
541 | } | |
542 | /* A lchown had been done, so we need to re-stat if | |
543 | * the destination had the setuid or setgid bits set | |
544 | * (due to the side effect of the chown call). */ | |
545 | if (sxp->st.st_mode & (S_ISUID | S_ISGID)) { | |
546 | link_stat(fname, &sxp->st, | |
547 | keep_dirlinks && S_ISDIR(sxp->st.st_mode)); | |
548 | } | |
a5827a28 | 549 | } |
460f6b99 | 550 | updated = 1; |
667e72a1 | 551 | } |
c627d613 | 552 | |
1c3344a1 WD |
553 | #ifdef SUPPORT_ACLS |
554 | /* It's OK to call set_acl() now, even for a dir, as the generator | |
555 | * will enable owner-writability using chmod, if necessary. | |
556 | * | |
557 | * If set_acl() changes permission bits in the process of setting | |
558 | * an access ACL, it changes sxp->st.st_mode so we know whether we | |
559 | * need to chmod(). */ | |
ee1c00fe WD |
560 | if (preserve_acls && !S_ISLNK(new_mode)) { |
561 | if (set_acl(fname, file, sxp, new_mode) > 0) | |
562 | updated = 1; | |
563 | } | |
1c3344a1 WD |
564 | #endif |
565 | ||
4f5b0756 | 566 | #ifdef HAVE_CHMOD |
1c3344a1 | 567 | if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) { |
9439c0cb | 568 | int ret = am_root < 0 ? 0 : do_chmod(fname, new_mode); |
c8d34657 | 569 | if (ret < 0) { |
3f0211b6 | 570 | rsyserr(FERROR_XFER, errno, |
c8d34657 WD |
571 | "failed to set permissions on %s", |
572 | full_fname(fname)); | |
1c3344a1 | 573 | goto cleanup; |
667e72a1 | 574 | } |
c8d34657 WD |
575 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
576 | updated = 1; | |
667e72a1 | 577 | } |
c627d613 | 578 | #endif |
6a7cc46c | 579 | |
951e826b | 580 | if (INFO_GTE(NAME, 2) && flags & ATTRS_REPORT) { |
667e72a1 | 581 | if (updated) |
1925c344 | 582 | rprintf(FCLIENT, "%s\n", fname); |
667e72a1 | 583 | else |
1925c344 | 584 | rprintf(FCLIENT, "%s is uptodate\n", fname); |
667e72a1 | 585 | } |
1c3344a1 | 586 | cleanup: |
16edf865 | 587 | if (sxp == &sx2) { |
1c3344a1 | 588 | #ifdef SUPPORT_ACLS |
16edf865 WD |
589 | if (preserve_acls) |
590 | free_acl(&sx2); | |
1c3344a1 | 591 | #endif |
16edf865 WD |
592 | #ifdef SUPPORT_XATTRS |
593 | if (preserve_xattrs) | |
594 | free_xattr(&sx2); | |
595 | #endif | |
596 | } | |
667e72a1 | 597 | return updated; |
c627d613 AT |
598 | } |
599 | ||
b8e9c234 | 600 | RETSIGTYPE sig_int(UNUSED(int val)) |
34ccb63e | 601 | { |
d5a0b483 WD |
602 | /* KLUGE: if the user hits Ctrl-C while ssh is prompting |
603 | * for a password, then our cleanup's sending of a SIGUSR1 | |
604 | * signal to all our children may kill ssh before it has a | |
605 | * chance to restore the tty settings (i.e. turn echo back | |
606 | * on). By sleeping for a short time, ssh gets a bigger | |
607 | * chance to do the right thing. If child processes are | |
608 | * not ssh waiting for a password, then this tiny delay | |
609 | * shouldn't hurt anything. */ | |
610 | msleep(400); | |
65417579 | 611 | exit_cleanup(RERR_SIGNAL); |
c627d613 AT |
612 | } |
613 | ||
d8b1c923 | 614 | /* Finish off a file transfer: renaming the file and setting the file's |
83235dbc WD |
615 | * attributes (e.g. permissions, ownership, etc.). If the robust_rename() |
616 | * call is forced to copy the temp file and partialptr is both non-NULL and | |
617 | * not an absolute path, we stage the file into the partial-dir and then | |
618 | * rename it into place. This returns 1 on succcess or 0 on failure. */ | |
619 | int finish_transfer(const char *fname, const char *fnametmp, | |
620 | const char *fnamecmp, const char *partialptr, | |
621 | struct file_struct *file, int ok_to_set_time, | |
622 | int overwriting_basis) | |
c95da96a | 623 | { |
62c9e6b3 | 624 | int ret; |
83235dbc | 625 | const char *temp_copy_name = partialptr && *partialptr != '/' ? partialptr : NULL; |
62c9e6b3 | 626 | |
a3221d2a | 627 | if (inplace) { |
951e826b | 628 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 629 | rprintf(FINFO, "finishing %s\n", fname); |
d8b1c923 | 630 | fnametmp = fname; |
36119f6e | 631 | goto do_set_file_attrs; |
a3221d2a WD |
632 | } |
633 | ||
e9489cd6 | 634 | if (make_backups > 0 && overwriting_basis) { |
21cddef2 WD |
635 | int ok = make_backup(fname, False); |
636 | if (!ok) | |
e9489cd6 | 637 | return 1; |
21cddef2 | 638 | if (ok == 1 && fnamecmp == fname) |
4337eeb7 | 639 | fnamecmp = get_backup_name(fname); |
e9489cd6 | 640 | } |
e484f0cc | 641 | |
ebeacb36 | 642 | /* Change permissions before putting the file into place. */ |
16edf865 | 643 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 644 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
ebeacb36 | 645 | |
c95da96a | 646 | /* move tmp file over real file */ |
951e826b | 647 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 648 | rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname); |
3b22184d | 649 | ret = robust_rename(fnametmp, fname, temp_copy_name, file->mode); |
3d061653 | 650 | if (ret < 0) { |
3f0211b6 | 651 | rsyserr(FERROR_XFER, errno, "%s %s -> \"%s\"", |
45c49b52 WD |
652 | ret == -2 ? "copy" : "rename", |
653 | full_fname(fnametmp), fname); | |
83235dbc | 654 | if (!partialptr || (ret == -2 && temp_copy_name) |
3b22184d | 655 | || robust_rename(fnametmp, partialptr, NULL, file->mode) < 0) |
83235dbc WD |
656 | do_unlink(fnametmp); |
657 | return 0; | |
c95da96a | 658 | } |
ebeacb36 WD |
659 | if (ret == 0) { |
660 | /* The file was moved into place (not copied), so it's done. */ | |
83235dbc | 661 | return 1; |
ebeacb36 | 662 | } |
d8b1c923 WD |
663 | /* The file was copied, so tweak the perms of the copied file. If it |
664 | * was copied to partialptr, move it into its final destination. */ | |
83235dbc | 665 | fnametmp = temp_copy_name ? temp_copy_name : fname; |
d8b1c923 | 666 | |
36119f6e | 667 | do_set_file_attrs: |
16edf865 | 668 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 669 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
d8b1c923 | 670 | |
83235dbc | 671 | if (temp_copy_name) { |
d8b1c923 | 672 | if (do_rename(fnametmp, fname) < 0) { |
3f0211b6 | 673 | rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\"", |
d8b1c923 | 674 | full_fname(fnametmp), fname); |
83235dbc WD |
675 | return 0; |
676 | } | |
677 | handle_partial_dir(temp_copy_name, PDIR_DELETE); | |
d8b1c923 | 678 | } |
83235dbc | 679 | return 1; |
c95da96a | 680 | } |
c3e5e585 | 681 | |
e982d591 | 682 | struct file_list *flist_for_ndx(int ndx, const char *fatal_error_loc) |
f3d6d480 WD |
683 | { |
684 | struct file_list *flist = cur_flist; | |
685 | ||
87a34ce5 | 686 | if (!flist && !(flist = first_flist)) |
e982d591 | 687 | goto not_found; |
f3d6d480 | 688 | |
6755a7d7 | 689 | while (ndx < flist->ndx_start-1) { |
f3d6d480 | 690 | if (flist == first_flist) |
e982d591 | 691 | goto not_found; |
f3d6d480 WD |
692 | flist = flist->prev; |
693 | } | |
65b4e4b2 | 694 | while (ndx >= flist->ndx_start + flist->used) { |
f3d6d480 | 695 | if (!(flist = flist->next)) |
e982d591 | 696 | goto not_found; |
f3d6d480 WD |
697 | } |
698 | return flist; | |
e982d591 WD |
699 | |
700 | not_found: | |
701 | if (fatal_error_loc) { | |
702 | int first, last; | |
703 | if (first_flist) { | |
704 | first = first_flist->ndx_start - 1; | |
705 | last = first_flist->prev->ndx_start + first_flist->prev->used - 1; | |
706 | } else { | |
707 | first = 0; | |
708 | last = -1; | |
709 | } | |
710 | rprintf(FERROR, | |
711 | "File-list index %d not in %d - %d (%s) [%s]\n", | |
712 | ndx, first, last, fatal_error_loc, who_am_i()); | |
713 | exit_cleanup(RERR_PROTOCOL); | |
714 | } | |
715 | return NULL; | |
f3d6d480 WD |
716 | } |
717 | ||
c3e5e585 WD |
718 | const char *who_am_i(void) |
719 | { | |
ed9d969c | 720 | if (am_starting_up) |
794b0a03 | 721 | return am_server ? "server" : "client"; |
82b2a31a WD |
722 | return am_sender ? "sender" |
723 | : am_generator ? "generator" | |
724 | : am_receiver ? "receiver" | |
725 | : "Receiver"; /* pre-forked receiver */ | |
c3e5e585 | 726 | } |