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; |
3ea6e0e7 | 44 | extern int inc_recurse; |
c786a7ae | 45 | extern int inplace; |
f3d6d480 | 46 | extern int flist_eof; |
ce827c3e | 47 | extern int file_old_total; |
81b07870 | 48 | extern int keep_dirlinks; |
2f03f956 | 49 | extern int make_backups; |
f3d6d480 | 50 | extern struct file_list *cur_flist, *first_flist, *dir_flist; |
94d3725c | 51 | extern struct chmod_mode_struct *daemon_chmod_modes; |
332cf6df WD |
52 | #ifdef ICONV_OPTION |
53 | extern char *iconv_opt; | |
54 | #endif | |
fe055c71 | 55 | |
332cf6df | 56 | #ifdef ICONV_CONST |
ceccbacc | 57 | iconv_t ic_chck = (iconv_t)-1; |
2ac97930 | 58 | # ifdef ICONV_OPTION |
332cf6df | 59 | iconv_t ic_send = (iconv_t)-1, ic_recv = (iconv_t)-1; |
2ac97930 | 60 | # endif |
ceccbacc | 61 | |
2a62f5ee | 62 | static const char *default_charset(void) |
ceccbacc | 63 | { |
2ac97930 | 64 | # if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET |
ceccbacc | 65 | return locale_charset(); |
2ac97930 | 66 | # elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO |
7fc87d2d | 67 | return nl_langinfo(CODESET); |
2ac97930 | 68 | # else |
ceccbacc | 69 | return ""; /* Works with (at the very least) gnu iconv... */ |
2ac97930 | 70 | # endif |
ceccbacc WD |
71 | } |
72 | ||
6191429b | 73 | void setup_iconv(void) |
ceccbacc | 74 | { |
332cf6df WD |
75 | const char *defset = default_charset(); |
76 | # ifdef ICONV_OPTION | |
77 | const char *charset; | |
78 | char *cp; | |
2ac97930 | 79 | # endif |
332cf6df | 80 | |
e0f4a661 | 81 | if (!am_server && !allow_8bit_chars) { |
e0f4a661 WD |
82 | /* It's OK if this fails... */ |
83 | ic_chck = iconv_open(defset, defset); | |
ceccbacc | 84 | |
c9f540f3 | 85 | if (DEBUG_GTE(ICONV, 2)) { |
e0f4a661 WD |
86 | if (ic_chck == (iconv_t)-1) { |
87 | rprintf(FINFO, | |
c9f540f3 WD |
88 | "msg checking via isprint()" |
89 | " (iconv_open(\"%s\", \"%s\") errno: %d)\n", | |
e0f4a661 WD |
90 | defset, defset, errno); |
91 | } else { | |
92 | rprintf(FINFO, | |
c9f540f3 WD |
93 | "msg checking charset: %s\n", |
94 | defset); | |
e0f4a661 | 95 | } |
7fc87d2d | 96 | } |
c9f540f3 WD |
97 | } else |
98 | ic_chck = (iconv_t)-1; | |
332cf6df WD |
99 | |
100 | # ifdef ICONV_OPTION | |
101 | if (!iconv_opt) | |
102 | return; | |
103 | ||
104 | if ((cp = strchr(iconv_opt, ',')) != NULL) { | |
105 | if (am_server) /* A local transfer needs this. */ | |
106 | iconv_opt = cp + 1; | |
107 | else | |
108 | *cp = '\0'; | |
109 | } | |
110 | ||
111 | if (!*iconv_opt || (*iconv_opt == '.' && iconv_opt[1] == '\0')) | |
112 | charset = defset; | |
113 | else | |
114 | charset = iconv_opt; | |
115 | ||
116 | if ((ic_send = iconv_open(UTF8_CHARSET, charset)) == (iconv_t)-1) { | |
117 | rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n", | |
118 | UTF8_CHARSET, charset); | |
119 | exit_cleanup(RERR_UNSUPPORTED); | |
120 | } | |
121 | ||
122 | if ((ic_recv = iconv_open(charset, UTF8_CHARSET)) == (iconv_t)-1) { | |
123 | rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n", | |
124 | charset, UTF8_CHARSET); | |
125 | exit_cleanup(RERR_UNSUPPORTED); | |
126 | } | |
127 | ||
c9f540f3 WD |
128 | if (DEBUG_GTE(ICONV, 1)) { |
129 | rprintf(FINFO, "[%s] charset: %s\n", | |
130 | who_am_i(), *charset ? charset : "[LOCALE]"); | |
332cf6df WD |
131 | } |
132 | # endif | |
ceccbacc | 133 | } |
2ac97930 | 134 | |
907e6a32 WD |
135 | /* This function converts the chars in the "in" xbuf into characters in the |
136 | * "out" xbuf. The ".len" chars of the "in" xbuf is used starting from its | |
137 | * ".pos". The ".size" of the "out" xbuf restricts how many characters can | |
138 | * be stored, starting at its ".pos+.len" position. Note that the last byte | |
139 | * of the "out" xbuf is not used, which reserves space for a trailing '\0' | |
140 | * (though it is up to the caller to store a trailing '\0', as needed). | |
141 | * | |
2ac97930 WD |
142 | * We return a 0 on success or a -1 on error. An error also sets errno to |
143 | * E2BIG, EILSEQ, or EINVAL (see below); otherwise errno will be set to 0. | |
907e6a32 WD |
144 | * The "in" xbuf is altered to update ".pos" and ".len". The "out" xbuf has |
145 | * data appended, and its ".len" incremented (see below for a ".size" note). | |
146 | * | |
147 | * If ICB_CIRCULAR_OUT is set in "flags", the chars going into the "out" xbuf | |
148 | * can wrap around to the start, and the xbuf may have its ".size" reduced | |
149 | * (presumably by 1 byte) if the iconv code doesn't have space to store a | |
150 | * multi-byte character at the physical end of the ".buf" (though no reducing | |
d03c0b1e | 151 | * happens if ".pos" is <= 1, since there is no room to wrap around). |
907e6a32 WD |
152 | * |
153 | * If ICB_EXPAND_OUT is set in "flags", the "out" xbuf will be allocated if | |
154 | * empty, and (as long as ICB_CIRCULAR_OUT is not set) expanded if too small. | |
155 | * This prevents the return of E2BIG (except for a circular xbuf). | |
156 | * | |
157 | * If ICB_INCLUDE_BAD is set in "flags", any badly-encoded chars are included | |
158 | * verbatim in the "out" xbuf, so EILSEQ will not be returned. | |
159 | * | |
160 | * If ICB_INCLUDE_INCOMPLETE is set in "flags", any incomplete multi-byte | |
161 | * chars are included, which ensures that EINVAL is not returned. | |
162 | * | |
163 | * If ICB_INIT is set, the iconv() conversion state is initialized prior to | |
164 | * processing the characters. */ | |
2ac97930 WD |
165 | int iconvbufs(iconv_t ic, xbuf *in, xbuf *out, int flags) |
166 | { | |
167 | ICONV_CONST char *ibuf; | |
20caffd2 | 168 | size_t icnt, ocnt, opos; |
2ac97930 WD |
169 | char *obuf; |
170 | ||
907e6a32 WD |
171 | if (!out->size && flags & ICB_EXPAND_OUT) { |
172 | size_t siz = ROUND_UP_1024(in->len * 2); | |
173 | alloc_xbuf(out, siz); | |
174 | } else if (out->len+1 >= out->size) { | |
175 | /* There is no room to even start storing data. */ | |
176 | if (!(flags & ICB_EXPAND_OUT) || flags & ICB_CIRCULAR_OUT) { | |
177 | errno = E2BIG; | |
178 | return -1; | |
179 | } | |
180 | realloc_xbuf(out, out->size + ROUND_UP_1024(in->len * 2)); | |
181 | } | |
2ac97930 | 182 | |
d8a7290f | 183 | if (flags & ICB_INIT) |
2ac97930 WD |
184 | iconv(ic, NULL, 0, NULL, 0); |
185 | ||
186 | ibuf = in->buf + in->pos; | |
187 | icnt = in->len; | |
188 | ||
20caffd2 WD |
189 | opos = out->pos + out->len; |
190 | if (flags & ICB_CIRCULAR_OUT) { | |
191 | if (opos >= out->size) { | |
192 | opos -= out->size; | |
907e6a32 WD |
193 | /* We know that out->pos is not 0 due to the "no room" check |
194 | * above, so this can't go "negative". */ | |
20caffd2 WD |
195 | ocnt = out->pos - opos - 1; |
196 | } else { | |
907e6a32 WD |
197 | /* Allow the use of all bytes to the physical end of the buffer |
198 | * unless pos is 0, in which case we reserve our trailing '\0'. */ | |
199 | ocnt = out->size - opos - (out->pos ? 0 : 1); | |
20caffd2 WD |
200 | } |
201 | } else | |
202 | ocnt = out->size - opos - 1; | |
203 | obuf = out->buf + opos; | |
2ac97930 WD |
204 | |
205 | while (icnt) { | |
206 | while (iconv(ic, &ibuf, &icnt, &obuf, &ocnt) == (size_t)-1) { | |
207 | if (errno == EINTR) | |
208 | continue; | |
209 | if (errno == EINVAL) { | |
210 | if (!(flags & ICB_INCLUDE_INCOMPLETE)) | |
211 | goto finish; | |
212 | } else if (errno == EILSEQ) { | |
213 | if (!(flags & ICB_INCLUDE_BAD)) | |
214 | goto finish; | |
907e6a32 WD |
215 | } else if (errno == E2BIG) { |
216 | size_t siz; | |
20caffd2 | 217 | opos = obuf - out->buf; |
907e6a32 WD |
218 | if (flags & ICB_CIRCULAR_OUT && out->pos > 1 && opos > out->pos) { |
219 | /* We are in a divided circular buffer at the physical | |
220 | * end with room to wrap to the start. If iconv() refused | |
221 | * to use one or more trailing bytes in the buffer, we | |
222 | * set the size to ignore the unused bytes. */ | |
223 | if (opos < out->size) | |
224 | reduce_iobuf_size(out, opos); | |
225 | obuf = out->buf; | |
226 | ocnt = out->pos - 1; | |
227 | continue; | |
20caffd2 WD |
228 | } |
229 | if (!(flags & ICB_EXPAND_OUT) || flags & ICB_CIRCULAR_OUT) { | |
2ac97930 WD |
230 | errno = E2BIG; |
231 | goto finish; | |
232 | } | |
907e6a32 WD |
233 | siz = ROUND_UP_1024(in->len * 2); |
234 | realloc_xbuf(out, out->size + siz); | |
2ac97930 | 235 | obuf = out->buf + opos; |
907e6a32 | 236 | ocnt += siz; |
2ac97930 | 237 | continue; |
907e6a32 WD |
238 | } else { |
239 | rsyserr(FERROR, errno, "unexpected error from iconv()"); | |
240 | exit_cleanup(RERR_UNSUPPORTED); | |
2ac97930 WD |
241 | } |
242 | *obuf++ = *ibuf++; | |
243 | ocnt--, icnt--; | |
244 | } | |
245 | } | |
246 | ||
247 | errno = 0; | |
248 | ||
249 | finish: | |
20caffd2 | 250 | opos = obuf - out->buf; |
907e6a32 WD |
251 | if (flags & ICB_CIRCULAR_OUT && opos < out->pos) |
252 | opos += out->size; | |
20caffd2 WD |
253 | out->len = opos - out->pos; |
254 | ||
2ac97930 WD |
255 | in->len = icnt; |
256 | in->pos = ibuf - in->buf; | |
2ac97930 WD |
257 | |
258 | return errno ? -1 : 0; | |
259 | } | |
ceccbacc | 260 | #endif |
fe055c71 | 261 | |
53936ef9 WD |
262 | void send_protected_args(int fd, char *args[]) |
263 | { | |
7abcfd85 | 264 | int i; |
53936ef9 | 265 | #ifdef ICONV_OPTION |
7abcfd85 | 266 | int convert = ic_send != (iconv_t)-1; |
53936ef9 WD |
267 | xbuf outbuf, inbuf; |
268 | ||
269 | if (convert) | |
270 | alloc_xbuf(&outbuf, 1024); | |
271 | #endif | |
272 | ||
273 | for (i = 0; args[i]; i++) {} /* find first NULL */ | |
274 | args[i] = "rsync"; /* set a new arg0 */ | |
951e826b | 275 | if (DEBUG_GTE(CMD, 1)) |
53936ef9 WD |
276 | print_child_argv("protected args:", args + i + 1); |
277 | do { | |
08b7c3ed WD |
278 | if (!args[i][0]) |
279 | write_buf(fd, ".", 2); | |
53936ef9 | 280 | #ifdef ICONV_OPTION |
08b7c3ed | 281 | else if (convert) { |
53936ef9 WD |
282 | INIT_XBUF_STRLEN(inbuf, args[i]); |
283 | iconvbufs(ic_send, &inbuf, &outbuf, | |
d8a7290f | 284 | ICB_EXPAND_OUT | ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE | ICB_INIT); |
53936ef9 WD |
285 | outbuf.buf[outbuf.len] = '\0'; |
286 | write_buf(fd, outbuf.buf, outbuf.len + 1); | |
287 | outbuf.len = 0; | |
08b7c3ed | 288 | } |
53936ef9 | 289 | #endif |
08b7c3ed | 290 | else |
53936ef9 WD |
291 | write_buf(fd, args[i], strlen(args[i]) + 1); |
292 | } while (args[++i]); | |
293 | write_byte(fd, 0); | |
294 | ||
295 | #ifdef ICONV_OPTION | |
296 | if (convert) | |
297 | free(outbuf.buf); | |
298 | #endif | |
299 | } | |
300 | ||
20caffd2 | 301 | int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr, uchar *type_ptr, |
16edf865 | 302 | char *buf, int *len_ptr) |
d1c178dd | 303 | { |
f3d6d480 WD |
304 | int len, iflags = 0; |
305 | struct file_list *flist; | |
d1c178dd | 306 | uchar fnamecmp_type = FNAMECMP_FNAME; |
951e826b | 307 | int ndx; |
f3d6d480 WD |
308 | |
309 | read_loop: | |
310 | while (1) { | |
9ae7a2cd | 311 | ndx = read_ndx(f_in); |
f3d6d480 | 312 | |
8b3e6052 | 313 | if (ndx >= 0) |
f3d6d480 WD |
314 | break; |
315 | if (ndx == NDX_DONE) | |
316 | return ndx; | |
20caffd2 WD |
317 | if (ndx == NDX_DEL_STATS) { |
318 | read_del_stats(f_in); | |
319 | if (am_sender && am_server) | |
320 | write_del_stats(f_out); | |
321 | continue; | |
322 | } | |
e982d591 WD |
323 | if (!inc_recurse || am_sender) { |
324 | int last; | |
325 | if (first_flist) | |
326 | last = first_flist->prev->ndx_start + first_flist->prev->used - 1; | |
327 | else | |
328 | last = -1; | |
329 | rprintf(FERROR, | |
330 | "Invalid file index: %d (%d - %d) [%s]\n", | |
331 | ndx, NDX_DONE, last, who_am_i()); | |
332 | exit_cleanup(RERR_PROTOCOL); | |
333 | } | |
f3d6d480 WD |
334 | if (ndx == NDX_FLIST_EOF) { |
335 | flist_eof = 1; | |
20caffd2 WD |
336 | if (DEBUG_GTE(FLIST, 3)) |
337 | rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i()); | |
338 | write_int(f_out, NDX_FLIST_EOF); | |
f3d6d480 WD |
339 | continue; |
340 | } | |
341 | ndx = NDX_FLIST_OFFSET - ndx; | |
9decb4d2 | 342 | if (ndx < 0 || ndx >= dir_flist->used) { |
f3d6d480 WD |
343 | ndx = NDX_FLIST_OFFSET - ndx; |
344 | rprintf(FERROR, | |
e982d591 WD |
345 | "Invalid dir index: %d (%d - %d) [%s]\n", |
346 | ndx, NDX_FLIST_OFFSET, | |
347 | NDX_FLIST_OFFSET - dir_flist->used + 1, | |
348 | who_am_i()); | |
f3d6d480 WD |
349 | exit_cleanup(RERR_PROTOCOL); |
350 | } | |
f3d6d480 | 351 | |
951e826b | 352 | if (DEBUG_GTE(FLIST, 2)) { |
1faa1a6d WD |
353 | rprintf(FINFO, "[%s] receiving flist for dir %d\n", |
354 | who_am_i(), ndx); | |
355 | } | |
20caffd2 WD |
356 | /* Send all the data we read for this flist to the generator. */ |
357 | start_flist_forward(ndx); | |
f3d6d480 WD |
358 | flist = recv_file_list(f_in); |
359 | flist->parent_ndx = ndx; | |
360 | stop_flist_forward(); | |
f3d6d480 WD |
361 | } |
362 | ||
363 | iflags = protocol_version >= 29 ? read_shortint(f_in) | |
d1c178dd WD |
364 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
365 | ||
92d02148 WD |
366 | /* Support the protocol-29 keep-alive style. */ |
367 | if (protocol_version < 30 && ndx == cur_flist->used && iflags == ITEM_IS_NEW) { | |
f3d6d480 | 368 | if (am_sender) |
05c36015 | 369 | maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH); |
f3d6d480 WD |
370 | goto read_loop; |
371 | } | |
372 | ||
ce827c3e WD |
373 | flist = flist_for_ndx(ndx, "read_ndx_and_attrs"); |
374 | if (flist != cur_flist) { | |
375 | cur_flist = flist; | |
376 | if (am_sender) { | |
377 | file_old_total = cur_flist->used; | |
378 | for (flist = first_flist; flist != cur_flist; flist = flist->next) | |
379 | file_old_total += flist->used; | |
380 | } | |
381 | } | |
d1c178dd WD |
382 | |
383 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
384 | fnamecmp_type = read_byte(f_in); | |
385 | *type_ptr = fnamecmp_type; | |
386 | ||
387 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
388 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
389 | exit_cleanup(RERR_PROTOCOL); | |
390 | } else { | |
391 | *buf = '\0'; | |
392 | len = -1; | |
393 | } | |
394 | *len_ptr = len; | |
395 | ||
396 | if (iflags & ITEM_TRANSFER) { | |
f3d6d480 | 397 | int i = ndx - cur_flist->ndx_start; |
6755a7d7 | 398 | if (i < 0 || !S_ISREG(cur_flist->files[i]->mode)) { |
d1c178dd WD |
399 | rprintf(FERROR, |
400 | "received request to transfer non-regular file: %d [%s]\n", | |
401 | ndx, who_am_i()); | |
402 | exit_cleanup(RERR_PROTOCOL); | |
403 | } | |
d1c178dd WD |
404 | } |
405 | ||
f3d6d480 WD |
406 | *iflag_ptr = iflags; |
407 | return ndx; | |
d1c178dd WD |
408 | } |
409 | ||
c627d613 AT |
410 | /* |
411 | free a sums struct | |
412 | */ | |
2f03f956 | 413 | void free_sums(struct sum_struct *s) |
c627d613 | 414 | { |
298c10d5 AT |
415 | if (s->sums) free(s->sums); |
416 | free(s); | |
c627d613 AT |
417 | } |
418 | ||
81284832 WD |
419 | /* This is only called when we aren't preserving permissions. Figure out what |
420 | * the permissions should be and return them merged back into the mode. */ | |
1c3344a1 WD |
421 | mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms, |
422 | int exists) | |
81284832 | 423 | { |
67f8a41b | 424 | int new_mode; |
9b499e95 | 425 | /* If the file already exists, we'll return the local permissions, |
81284832 WD |
426 | * possibly tweaked by the --executability option. */ |
427 | if (exists) { | |
67f8a41b | 428 | new_mode = (flist_mode & ~CHMOD_BITS) | (stat_mode & CHMOD_BITS); |
81284832 WD |
429 | if (preserve_executability && S_ISREG(flist_mode)) { |
430 | /* If the source file is executable, grant execute | |
431 | * rights to everyone who can read, but ONLY if the | |
432 | * file isn't already executable. */ | |
433 | if (!(flist_mode & 0111)) | |
67f8a41b WD |
434 | new_mode &= ~0111; |
435 | else if (!(stat_mode & 0111)) | |
436 | new_mode |= (new_mode & 0444) >> 2; | |
81284832 | 437 | } |
67f8a41b | 438 | } else { |
1c3344a1 WD |
439 | /* Apply destination default permissions and turn |
440 | * off special permissions. */ | |
441 | new_mode = flist_mode & (~CHMOD_BITS | dflt_perms); | |
67f8a41b | 442 | } |
67f8a41b | 443 | return new_mode; |
81284832 WD |
444 | } |
445 | ||
13710874 | 446 | int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp, |
16edf865 | 447 | const char *fnamecmp, int flags) |
c627d613 | 448 | { |
667e72a1 | 449 | int updated = 0; |
13710874 | 450 | stat_x sx2; |
460f6b99 | 451 | int change_uid, change_gid; |
519d55a9 | 452 | mode_t new_mode = file->mode; |
2dc7b91d | 453 | int inherit; |
c627d613 | 454 | |
1c3344a1 | 455 | if (!sxp) { |
f227ffe4 WD |
456 | if (dry_run) |
457 | return 1; | |
1c3344a1 | 458 | if (link_stat(fname, &sx2.st, 0) < 0) { |
3f0211b6 | 459 | rsyserr(FERROR_XFER, errno, "stat %s failed", |
d62bcc17 | 460 | full_fname(fname)); |
667e72a1 AT |
461 | return 0; |
462 | } | |
09ca0d15 | 463 | init_stat_x(&sx2); |
1c3344a1 | 464 | sxp = &sx2; |
2dc7b91d WD |
465 | inherit = !preserve_perms; |
466 | } else | |
467 | inherit = !preserve_perms && file->flags & FLAG_DIR_CREATED; | |
468 | ||
469 | if (inherit && S_ISDIR(new_mode) && sxp->st.st_mode & S_ISGID) { | |
470 | /* We just created this directory and its setgid | |
471 | * bit is on, so make sure it stays on. */ | |
472 | new_mode |= S_ISGID; | |
667e72a1 | 473 | } |
c627d613 | 474 | |
e107b6b1 WD |
475 | if (daemon_chmod_modes && !S_ISLNK(new_mode)) |
476 | new_mode = tweak_mode(new_mode, daemon_chmod_modes); | |
477 | ||
1c3344a1 WD |
478 | #ifdef SUPPORT_ACLS |
479 | if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp)) | |
480 | get_acl(fname, sxp); | |
481 | #endif | |
482 | ||
16edf865 | 483 | #ifdef SUPPORT_XATTRS |
9439c0cb | 484 | if (am_root < 0) |
e107b6b1 | 485 | set_stat_xattr(fname, file, new_mode); |
4d7c8e6b WD |
486 | if (preserve_xattrs && fnamecmp) |
487 | set_xattr(fname, file, fnamecmp, sxp); | |
16edf865 WD |
488 | #endif |
489 | ||
2624e005 WD |
490 | if (!preserve_times |
491 | || (!(preserve_times & PRESERVE_DIR_TIMES) && S_ISDIR(sxp->st.st_mode)) | |
492 | || (!(preserve_times & PRESERVE_LINK_TIMES) && S_ISLNK(sxp->st.st_mode))) | |
36119f6e WD |
493 | flags |= ATTRS_SKIP_MTIME; |
494 | if (!(flags & ATTRS_SKIP_MTIME) | |
1c3344a1 | 495 | && cmp_time(sxp->st.st_mtime, file->modtime) != 0) { |
ba342e22 | 496 | int ret = set_modtime(fname, file->modtime, F_MOD_NSEC(file), sxp->st.st_mode); |
c8d34657 | 497 | if (ret < 0) { |
3f0211b6 | 498 | rsyserr(FERROR_XFER, errno, "failed to set times on %s", |
d62bcc17 | 499 | full_fname(fname)); |
1c3344a1 | 500 | goto cleanup; |
667e72a1 | 501 | } |
c8d34657 WD |
502 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
503 | updated = 1; | |
ee39281d | 504 | else |
1ed56a05 | 505 | file->flags |= FLAG_TIME_FAILED; |
667e72a1 AT |
506 | } |
507 | ||
9b25ef35 WD |
508 | change_uid = am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file); |
509 | change_gid = gid_ndx && !(file->flags & FLAG_SKIP_GROUP) | |
858d45f1 | 510 | && sxp->st.st_gid != (gid_t)F_GROUP(file); |
743348e8 | 511 | #ifndef CAN_CHOWN_SYMLINK |
2e52ba36 | 512 | if (S_ISLNK(sxp->st.st_mode)) { |
a41a1e87 | 513 | ; |
2e52ba36 | 514 | } else |
a41a1e87 | 515 | #endif |
460f6b99 | 516 | if (change_uid || change_gid) { |
951e826b | 517 | if (DEBUG_GTE(OWN, 1)) { |
ce37eb2d WD |
518 | if (change_uid) { |
519 | rprintf(FINFO, | |
4ade505c WD |
520 | "set uid of %s from %u to %u\n", |
521 | fname, (unsigned)sxp->st.st_uid, F_OWNER(file)); | |
ce37eb2d WD |
522 | } |
523 | if (change_gid) { | |
524 | rprintf(FINFO, | |
4ade505c WD |
525 | "set gid of %s from %u to %u\n", |
526 | fname, (unsigned)sxp->st.st_gid, F_GROUP(file)); | |
ce37eb2d WD |
527 | } |
528 | } | |
87629cf2 | 529 | if (am_root >= 0) { |
eee2c77a WD |
530 | uid_t uid = change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid; |
531 | gid_t gid = change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid; | |
532 | if (do_lchown(fname, uid, gid) != 0) { | |
87629cf2 WD |
533 | /* We shouldn't have attempted to change uid |
534 | * or gid unless have the privilege. */ | |
535 | rsyserr(FERROR_XFER, errno, "%s %s failed", | |
536 | change_uid ? "chown" : "chgrp", | |
537 | full_fname(fname)); | |
538 | goto cleanup; | |
539 | } | |
eee2c77a WD |
540 | if (uid == (uid_t)-1 && sxp->st.st_uid != (uid_t)-1) |
541 | rprintf(FERROR_XFER, "uid 4294967295 (-1) is impossible to set on %s\n", full_fname(fname)); | |
542 | if (gid == (gid_t)-1 && sxp->st.st_gid != (gid_t)-1) | |
543 | rprintf(FERROR_XFER, "gid 4294967295 (-1) is impossible to set on %s\n", full_fname(fname)); | |
87629cf2 WD |
544 | /* A lchown had been done, so we need to re-stat if |
545 | * the destination had the setuid or setgid bits set | |
546 | * (due to the side effect of the chown call). */ | |
547 | if (sxp->st.st_mode & (S_ISUID | S_ISGID)) { | |
548 | link_stat(fname, &sxp->st, | |
549 | keep_dirlinks && S_ISDIR(sxp->st.st_mode)); | |
550 | } | |
a5827a28 | 551 | } |
460f6b99 | 552 | updated = 1; |
667e72a1 | 553 | } |
c627d613 | 554 | |
1c3344a1 WD |
555 | #ifdef SUPPORT_ACLS |
556 | /* It's OK to call set_acl() now, even for a dir, as the generator | |
557 | * will enable owner-writability using chmod, if necessary. | |
558 | * | |
559 | * If set_acl() changes permission bits in the process of setting | |
560 | * an access ACL, it changes sxp->st.st_mode so we know whether we | |
561 | * need to chmod(). */ | |
ee1c00fe WD |
562 | if (preserve_acls && !S_ISLNK(new_mode)) { |
563 | if (set_acl(fname, file, sxp, new_mode) > 0) | |
564 | updated = 1; | |
565 | } | |
1c3344a1 WD |
566 | #endif |
567 | ||
4f5b0756 | 568 | #ifdef HAVE_CHMOD |
1c3344a1 | 569 | if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) { |
9439c0cb | 570 | int ret = am_root < 0 ? 0 : do_chmod(fname, new_mode); |
c8d34657 | 571 | if (ret < 0) { |
3f0211b6 | 572 | rsyserr(FERROR_XFER, errno, |
c8d34657 WD |
573 | "failed to set permissions on %s", |
574 | full_fname(fname)); | |
1c3344a1 | 575 | goto cleanup; |
667e72a1 | 576 | } |
c8d34657 WD |
577 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
578 | updated = 1; | |
667e72a1 | 579 | } |
c627d613 | 580 | #endif |
6a7cc46c | 581 | |
951e826b | 582 | if (INFO_GTE(NAME, 2) && flags & ATTRS_REPORT) { |
667e72a1 | 583 | if (updated) |
1925c344 | 584 | rprintf(FCLIENT, "%s\n", fname); |
667e72a1 | 585 | else |
1925c344 | 586 | rprintf(FCLIENT, "%s is uptodate\n", fname); |
667e72a1 | 587 | } |
1c3344a1 | 588 | cleanup: |
16edf865 | 589 | if (sxp == &sx2) { |
1c3344a1 | 590 | #ifdef SUPPORT_ACLS |
16edf865 WD |
591 | if (preserve_acls) |
592 | free_acl(&sx2); | |
1c3344a1 | 593 | #endif |
16edf865 WD |
594 | #ifdef SUPPORT_XATTRS |
595 | if (preserve_xattrs) | |
596 | free_xattr(&sx2); | |
597 | #endif | |
598 | } | |
667e72a1 | 599 | return updated; |
c627d613 AT |
600 | } |
601 | ||
b8e9c234 | 602 | RETSIGTYPE sig_int(UNUSED(int val)) |
34ccb63e | 603 | { |
d5a0b483 WD |
604 | /* KLUGE: if the user hits Ctrl-C while ssh is prompting |
605 | * for a password, then our cleanup's sending of a SIGUSR1 | |
606 | * signal to all our children may kill ssh before it has a | |
607 | * chance to restore the tty settings (i.e. turn echo back | |
608 | * on). By sleeping for a short time, ssh gets a bigger | |
609 | * chance to do the right thing. If child processes are | |
610 | * not ssh waiting for a password, then this tiny delay | |
611 | * shouldn't hurt anything. */ | |
612 | msleep(400); | |
65417579 | 613 | exit_cleanup(RERR_SIGNAL); |
c627d613 AT |
614 | } |
615 | ||
d8b1c923 | 616 | /* Finish off a file transfer: renaming the file and setting the file's |
83235dbc WD |
617 | * attributes (e.g. permissions, ownership, etc.). If the robust_rename() |
618 | * call is forced to copy the temp file and partialptr is both non-NULL and | |
619 | * not an absolute path, we stage the file into the partial-dir and then | |
620 | * rename it into place. This returns 1 on succcess or 0 on failure. */ | |
621 | int finish_transfer(const char *fname, const char *fnametmp, | |
622 | const char *fnamecmp, const char *partialptr, | |
623 | struct file_struct *file, int ok_to_set_time, | |
624 | int overwriting_basis) | |
c95da96a | 625 | { |
62c9e6b3 | 626 | int ret; |
83235dbc | 627 | const char *temp_copy_name = partialptr && *partialptr != '/' ? partialptr : NULL; |
62c9e6b3 | 628 | |
a3221d2a | 629 | if (inplace) { |
951e826b | 630 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 631 | rprintf(FINFO, "finishing %s\n", fname); |
d8b1c923 | 632 | fnametmp = fname; |
36119f6e | 633 | goto do_set_file_attrs; |
a3221d2a WD |
634 | } |
635 | ||
e9489cd6 | 636 | if (make_backups > 0 && overwriting_basis) { |
21cddef2 WD |
637 | int ok = make_backup(fname, False); |
638 | if (!ok) | |
e9489cd6 | 639 | return 1; |
21cddef2 | 640 | if (ok == 1 && fnamecmp == fname) |
4337eeb7 | 641 | fnamecmp = get_backup_name(fname); |
e9489cd6 | 642 | } |
e484f0cc | 643 | |
ebeacb36 | 644 | /* Change permissions before putting the file into place. */ |
16edf865 | 645 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 646 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
ebeacb36 | 647 | |
c95da96a | 648 | /* move tmp file over real file */ |
951e826b | 649 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 650 | rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname); |
3b22184d | 651 | ret = robust_rename(fnametmp, fname, temp_copy_name, file->mode); |
3d061653 | 652 | if (ret < 0) { |
3f0211b6 | 653 | rsyserr(FERROR_XFER, errno, "%s %s -> \"%s\"", |
45c49b52 WD |
654 | ret == -2 ? "copy" : "rename", |
655 | full_fname(fnametmp), fname); | |
83235dbc | 656 | if (!partialptr || (ret == -2 && temp_copy_name) |
3b22184d | 657 | || robust_rename(fnametmp, partialptr, NULL, file->mode) < 0) |
83235dbc WD |
658 | do_unlink(fnametmp); |
659 | return 0; | |
c95da96a | 660 | } |
ebeacb36 WD |
661 | if (ret == 0) { |
662 | /* The file was moved into place (not copied), so it's done. */ | |
83235dbc | 663 | return 1; |
ebeacb36 | 664 | } |
d8b1c923 WD |
665 | /* The file was copied, so tweak the perms of the copied file. If it |
666 | * was copied to partialptr, move it into its final destination. */ | |
83235dbc | 667 | fnametmp = temp_copy_name ? temp_copy_name : fname; |
d8b1c923 | 668 | |
36119f6e | 669 | do_set_file_attrs: |
16edf865 | 670 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 671 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
d8b1c923 | 672 | |
83235dbc | 673 | if (temp_copy_name) { |
d8b1c923 | 674 | if (do_rename(fnametmp, fname) < 0) { |
3f0211b6 | 675 | rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\"", |
d8b1c923 | 676 | full_fname(fnametmp), fname); |
83235dbc WD |
677 | return 0; |
678 | } | |
679 | handle_partial_dir(temp_copy_name, PDIR_DELETE); | |
d8b1c923 | 680 | } |
83235dbc | 681 | return 1; |
c95da96a | 682 | } |
c3e5e585 | 683 | |
e982d591 | 684 | struct file_list *flist_for_ndx(int ndx, const char *fatal_error_loc) |
f3d6d480 WD |
685 | { |
686 | struct file_list *flist = cur_flist; | |
687 | ||
87a34ce5 | 688 | if (!flist && !(flist = first_flist)) |
e982d591 | 689 | goto not_found; |
f3d6d480 | 690 | |
6755a7d7 | 691 | while (ndx < flist->ndx_start-1) { |
f3d6d480 | 692 | if (flist == first_flist) |
e982d591 | 693 | goto not_found; |
f3d6d480 WD |
694 | flist = flist->prev; |
695 | } | |
65b4e4b2 | 696 | while (ndx >= flist->ndx_start + flist->used) { |
f3d6d480 | 697 | if (!(flist = flist->next)) |
e982d591 | 698 | goto not_found; |
f3d6d480 WD |
699 | } |
700 | return flist; | |
e982d591 WD |
701 | |
702 | not_found: | |
703 | if (fatal_error_loc) { | |
704 | int first, last; | |
705 | if (first_flist) { | |
706 | first = first_flist->ndx_start - 1; | |
707 | last = first_flist->prev->ndx_start + first_flist->prev->used - 1; | |
708 | } else { | |
709 | first = 0; | |
710 | last = -1; | |
711 | } | |
712 | rprintf(FERROR, | |
713 | "File-list index %d not in %d - %d (%s) [%s]\n", | |
714 | ndx, first, last, fatal_error_loc, who_am_i()); | |
715 | exit_cleanup(RERR_PROTOCOL); | |
716 | } | |
717 | return NULL; | |
f3d6d480 WD |
718 | } |
719 | ||
c3e5e585 WD |
720 | const char *who_am_i(void) |
721 | { | |
ed9d969c | 722 | if (am_starting_up) |
794b0a03 | 723 | return am_server ? "server" : "client"; |
82b2a31a WD |
724 | return am_sender ? "sender" |
725 | : am_generator ? "generator" | |
726 | : am_receiver ? "receiver" | |
727 | : "Receiver"; /* pre-forked receiver */ | |
c3e5e585 | 728 | } |