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 WD |
38 | extern int am_sender; |
39 | extern int am_generator; | |
ed9d969c | 40 | extern int am_starting_up; |
e0f4a661 | 41 | extern int allow_8bit_chars; |
b675ba6f | 42 | extern int protocol_version; |
9b25ef35 WD |
43 | extern int uid_ndx; |
44 | extern int gid_ndx; | |
3ea6e0e7 | 45 | extern int inc_recurse; |
c786a7ae | 46 | extern int inplace; |
f3d6d480 | 47 | extern int flist_eof; |
ce827c3e | 48 | extern int file_old_total; |
eabc85ef | 49 | extern int msgs2stderr; |
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 | |
20caffd2 WD |
137 | /* Move any bytes in the overflow space to the start. This avoids any issue |
138 | * with a multibyte sequence that needs to span the end of the buffer. */ | |
139 | static void wrap_overflow(xbuf *out, int siz) | |
140 | { | |
141 | if (DEBUG_GTE(IO, 4)) | |
142 | rprintf(FINFO, "[%s] wrap-bytes moved: %d (iconvbufs)\n", who_am_i(), siz); | |
143 | memcpy(out->buf, out->buf + out->size, siz); | |
144 | } | |
145 | ||
2ac97930 WD |
146 | /* This function converts the characters in the "in" xbuf into characters |
147 | * in the "out" xbuf. The "len" of the "in" xbuf is used starting from its | |
148 | * "pos". The "size" of the "out" xbuf restricts how many characters can be | |
149 | * stored, starting at its "pos+len" position. Note that the last byte of | |
150 | * the buffer is never used, which reserves space for a terminating '\0'. | |
20caffd2 WD |
151 | * If ICB_CIRCULAR_OUT is set, the output data can wrap around to the start, |
152 | * and the buf IS ASSUMED TO HAVE AN EXTRA 4 BYTES OF OVERFLOW SPACE at the | |
153 | * end (the buffer will also not be expanded if it is already allocated). | |
2ac97930 WD |
154 | * We return a 0 on success or a -1 on error. An error also sets errno to |
155 | * E2BIG, EILSEQ, or EINVAL (see below); otherwise errno will be set to 0. | |
156 | * The "in" xbuf is altered to update "pos" and "len". The "out" xbuf has | |
157 | * data appended, and its "len" incremented. If ICB_EXPAND_OUT is set in | |
158 | * "flags", the "out" xbuf will also be allocated if empty, and expanded if | |
159 | * too small (so E2BIG will not be returned). If ICB_INCLUDE_BAD is set in | |
160 | * "flags", any badly-encoded chars are included verbatim in the "out" xbuf, | |
161 | * so EILSEQ will not be returned. Likewise for ICB_INCLUDE_INCOMPLETE with | |
162 | * respect to an incomplete multi-byte char at the end, which ensures that | |
163 | * EINVAL is not returned. Anytime "in.pos" is 0 we will reset the iconv() | |
164 | * state prior to processing the characters. */ | |
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 | ||
171 | if (!out->size && flags & ICB_EXPAND_OUT) | |
172 | alloc_xbuf(out, 1024); | |
173 | ||
174 | if (!in->pos) | |
175 | iconv(ic, NULL, 0, NULL, 0); | |
176 | ||
177 | ibuf = in->buf + in->pos; | |
178 | icnt = in->len; | |
179 | ||
20caffd2 WD |
180 | opos = out->pos + out->len; |
181 | if (flags & ICB_CIRCULAR_OUT) { | |
182 | if (opos >= out->size) { | |
183 | opos -= out->size; | |
184 | ocnt = out->pos - opos - 1; | |
185 | } else { | |
186 | /* We only make use of the 4 bytes of overflow buffer | |
187 | * if there is room to move the bytes to the start of | |
188 | * the circular buffer. */ | |
189 | ocnt = out->size - opos + MIN((ssize_t)out->pos - 1, 4); | |
190 | } | |
191 | } else | |
192 | ocnt = out->size - opos - 1; | |
193 | obuf = out->buf + opos; | |
2ac97930 WD |
194 | |
195 | while (icnt) { | |
196 | while (iconv(ic, &ibuf, &icnt, &obuf, &ocnt) == (size_t)-1) { | |
197 | if (errno == EINTR) | |
198 | continue; | |
199 | if (errno == EINVAL) { | |
200 | if (!(flags & ICB_INCLUDE_INCOMPLETE)) | |
201 | goto finish; | |
202 | } else if (errno == EILSEQ) { | |
203 | if (!(flags & ICB_INCLUDE_BAD)) | |
204 | goto finish; | |
205 | } else { | |
20caffd2 WD |
206 | opos = obuf - out->buf; |
207 | if (flags & ICB_CIRCULAR_OUT && opos > out->size) { | |
208 | wrap_overflow(out, opos -= out->size); | |
209 | obuf = out->buf + opos; | |
210 | if ((ocnt = out->pos - opos - 1) > 0) | |
211 | continue; | |
212 | } | |
213 | if (!(flags & ICB_EXPAND_OUT) || flags & ICB_CIRCULAR_OUT) { | |
2ac97930 WD |
214 | errno = E2BIG; |
215 | goto finish; | |
216 | } | |
217 | realloc_xbuf(out, out->size + 1024); | |
218 | obuf = out->buf + opos; | |
219 | ocnt += 1024; | |
220 | continue; | |
221 | } | |
222 | *obuf++ = *ibuf++; | |
223 | ocnt--, icnt--; | |
224 | } | |
225 | } | |
226 | ||
227 | errno = 0; | |
228 | ||
229 | finish: | |
20caffd2 WD |
230 | opos = obuf - out->buf; |
231 | if (flags & ICB_CIRCULAR_OUT) { | |
232 | if (opos > out->size) | |
233 | wrap_overflow(out, opos - out->size); | |
234 | else if (opos < out->pos) | |
235 | opos += out->size; | |
236 | } | |
237 | out->len = opos - out->pos; | |
238 | ||
2ac97930 WD |
239 | in->len = icnt; |
240 | in->pos = ibuf - in->buf; | |
2ac97930 WD |
241 | |
242 | return errno ? -1 : 0; | |
243 | } | |
ceccbacc | 244 | #endif |
fe055c71 | 245 | |
53936ef9 WD |
246 | void send_protected_args(int fd, char *args[]) |
247 | { | |
7abcfd85 | 248 | int i; |
53936ef9 | 249 | #ifdef ICONV_OPTION |
7abcfd85 | 250 | int convert = ic_send != (iconv_t)-1; |
53936ef9 WD |
251 | xbuf outbuf, inbuf; |
252 | ||
253 | if (convert) | |
254 | alloc_xbuf(&outbuf, 1024); | |
255 | #endif | |
256 | ||
257 | for (i = 0; args[i]; i++) {} /* find first NULL */ | |
258 | args[i] = "rsync"; /* set a new arg0 */ | |
951e826b | 259 | if (DEBUG_GTE(CMD, 1)) |
53936ef9 WD |
260 | print_child_argv("protected args:", args + i + 1); |
261 | do { | |
08b7c3ed WD |
262 | if (!args[i][0]) |
263 | write_buf(fd, ".", 2); | |
53936ef9 | 264 | #ifdef ICONV_OPTION |
08b7c3ed | 265 | else if (convert) { |
53936ef9 WD |
266 | INIT_XBUF_STRLEN(inbuf, args[i]); |
267 | iconvbufs(ic_send, &inbuf, &outbuf, | |
268 | ICB_EXPAND_OUT | ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE); | |
269 | outbuf.buf[outbuf.len] = '\0'; | |
270 | write_buf(fd, outbuf.buf, outbuf.len + 1); | |
271 | outbuf.len = 0; | |
08b7c3ed | 272 | } |
53936ef9 | 273 | #endif |
08b7c3ed | 274 | else |
53936ef9 WD |
275 | write_buf(fd, args[i], strlen(args[i]) + 1); |
276 | } while (args[++i]); | |
277 | write_byte(fd, 0); | |
278 | ||
279 | #ifdef ICONV_OPTION | |
280 | if (convert) | |
281 | free(outbuf.buf); | |
282 | #endif | |
283 | } | |
284 | ||
20caffd2 | 285 | int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr, uchar *type_ptr, |
16edf865 | 286 | char *buf, int *len_ptr) |
d1c178dd | 287 | { |
f3d6d480 WD |
288 | int len, iflags = 0; |
289 | struct file_list *flist; | |
d1c178dd | 290 | uchar fnamecmp_type = FNAMECMP_FNAME; |
951e826b | 291 | int ndx; |
f3d6d480 WD |
292 | |
293 | read_loop: | |
294 | while (1) { | |
9ae7a2cd | 295 | ndx = read_ndx(f_in); |
f3d6d480 | 296 | |
8b3e6052 | 297 | if (ndx >= 0) |
f3d6d480 WD |
298 | break; |
299 | if (ndx == NDX_DONE) | |
300 | return ndx; | |
20caffd2 WD |
301 | if (ndx == NDX_DEL_STATS) { |
302 | read_del_stats(f_in); | |
303 | if (am_sender && am_server) | |
304 | write_del_stats(f_out); | |
305 | continue; | |
306 | } | |
e982d591 WD |
307 | if (!inc_recurse || am_sender) { |
308 | int last; | |
309 | if (first_flist) | |
310 | last = first_flist->prev->ndx_start + first_flist->prev->used - 1; | |
311 | else | |
312 | last = -1; | |
313 | rprintf(FERROR, | |
314 | "Invalid file index: %d (%d - %d) [%s]\n", | |
315 | ndx, NDX_DONE, last, who_am_i()); | |
316 | exit_cleanup(RERR_PROTOCOL); | |
317 | } | |
f3d6d480 WD |
318 | if (ndx == NDX_FLIST_EOF) { |
319 | flist_eof = 1; | |
20caffd2 WD |
320 | if (DEBUG_GTE(FLIST, 3)) |
321 | rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i()); | |
322 | write_int(f_out, NDX_FLIST_EOF); | |
f3d6d480 WD |
323 | continue; |
324 | } | |
325 | ndx = NDX_FLIST_OFFSET - ndx; | |
9decb4d2 | 326 | if (ndx < 0 || ndx >= dir_flist->used) { |
f3d6d480 WD |
327 | ndx = NDX_FLIST_OFFSET - ndx; |
328 | rprintf(FERROR, | |
e982d591 WD |
329 | "Invalid dir index: %d (%d - %d) [%s]\n", |
330 | ndx, NDX_FLIST_OFFSET, | |
331 | NDX_FLIST_OFFSET - dir_flist->used + 1, | |
332 | who_am_i()); | |
f3d6d480 WD |
333 | exit_cleanup(RERR_PROTOCOL); |
334 | } | |
f3d6d480 | 335 | |
951e826b | 336 | if (DEBUG_GTE(FLIST, 2)) { |
1faa1a6d WD |
337 | rprintf(FINFO, "[%s] receiving flist for dir %d\n", |
338 | who_am_i(), ndx); | |
339 | } | |
20caffd2 WD |
340 | /* Send all the data we read for this flist to the generator. */ |
341 | start_flist_forward(ndx); | |
f3d6d480 WD |
342 | flist = recv_file_list(f_in); |
343 | flist->parent_ndx = ndx; | |
344 | stop_flist_forward(); | |
f3d6d480 WD |
345 | } |
346 | ||
347 | iflags = protocol_version >= 29 ? read_shortint(f_in) | |
d1c178dd WD |
348 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
349 | ||
f3d6d480 WD |
350 | /* Honor the old-style keep-alive indicator. */ |
351 | if (protocol_version < 30 | |
9decb4d2 | 352 | && ndx == cur_flist->used && iflags == ITEM_IS_NEW) { |
f3d6d480 WD |
353 | if (am_sender) |
354 | maybe_send_keepalive(); | |
355 | goto read_loop; | |
356 | } | |
357 | ||
ce827c3e WD |
358 | flist = flist_for_ndx(ndx, "read_ndx_and_attrs"); |
359 | if (flist != cur_flist) { | |
360 | cur_flist = flist; | |
361 | if (am_sender) { | |
362 | file_old_total = cur_flist->used; | |
363 | for (flist = first_flist; flist != cur_flist; flist = flist->next) | |
364 | file_old_total += flist->used; | |
365 | } | |
366 | } | |
d1c178dd WD |
367 | |
368 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
369 | fnamecmp_type = read_byte(f_in); | |
370 | *type_ptr = fnamecmp_type; | |
371 | ||
372 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
373 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
374 | exit_cleanup(RERR_PROTOCOL); | |
375 | } else { | |
376 | *buf = '\0'; | |
377 | len = -1; | |
378 | } | |
379 | *len_ptr = len; | |
380 | ||
381 | if (iflags & ITEM_TRANSFER) { | |
f3d6d480 | 382 | int i = ndx - cur_flist->ndx_start; |
6755a7d7 | 383 | if (i < 0 || !S_ISREG(cur_flist->files[i]->mode)) { |
d1c178dd WD |
384 | rprintf(FERROR, |
385 | "received request to transfer non-regular file: %d [%s]\n", | |
386 | ndx, who_am_i()); | |
387 | exit_cleanup(RERR_PROTOCOL); | |
388 | } | |
d1c178dd WD |
389 | } |
390 | ||
f3d6d480 WD |
391 | *iflag_ptr = iflags; |
392 | return ndx; | |
d1c178dd WD |
393 | } |
394 | ||
c627d613 AT |
395 | /* |
396 | free a sums struct | |
397 | */ | |
2f03f956 | 398 | void free_sums(struct sum_struct *s) |
c627d613 | 399 | { |
298c10d5 AT |
400 | if (s->sums) free(s->sums); |
401 | free(s); | |
c627d613 AT |
402 | } |
403 | ||
81284832 WD |
404 | /* This is only called when we aren't preserving permissions. Figure out what |
405 | * the permissions should be and return them merged back into the mode. */ | |
1c3344a1 WD |
406 | mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms, |
407 | int exists) | |
81284832 | 408 | { |
67f8a41b | 409 | int new_mode; |
9b499e95 | 410 | /* If the file already exists, we'll return the local permissions, |
81284832 WD |
411 | * possibly tweaked by the --executability option. */ |
412 | if (exists) { | |
67f8a41b | 413 | new_mode = (flist_mode & ~CHMOD_BITS) | (stat_mode & CHMOD_BITS); |
81284832 WD |
414 | if (preserve_executability && S_ISREG(flist_mode)) { |
415 | /* If the source file is executable, grant execute | |
416 | * rights to everyone who can read, but ONLY if the | |
417 | * file isn't already executable. */ | |
418 | if (!(flist_mode & 0111)) | |
67f8a41b WD |
419 | new_mode &= ~0111; |
420 | else if (!(stat_mode & 0111)) | |
421 | new_mode |= (new_mode & 0444) >> 2; | |
81284832 | 422 | } |
67f8a41b | 423 | } else { |
1c3344a1 WD |
424 | /* Apply destination default permissions and turn |
425 | * off special permissions. */ | |
426 | new_mode = flist_mode & (~CHMOD_BITS | dflt_perms); | |
67f8a41b | 427 | } |
67f8a41b | 428 | return new_mode; |
81284832 WD |
429 | } |
430 | ||
13710874 | 431 | int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp, |
16edf865 | 432 | const char *fnamecmp, int flags) |
c627d613 | 433 | { |
667e72a1 | 434 | int updated = 0; |
13710874 | 435 | stat_x sx2; |
460f6b99 | 436 | int change_uid, change_gid; |
519d55a9 | 437 | mode_t new_mode = file->mode; |
2dc7b91d | 438 | int inherit; |
c627d613 | 439 | |
1c3344a1 | 440 | if (!sxp) { |
f227ffe4 WD |
441 | if (dry_run) |
442 | return 1; | |
1c3344a1 | 443 | if (link_stat(fname, &sx2.st, 0) < 0) { |
3f0211b6 | 444 | rsyserr(FERROR_XFER, errno, "stat %s failed", |
d62bcc17 | 445 | full_fname(fname)); |
667e72a1 AT |
446 | return 0; |
447 | } | |
09ca0d15 | 448 | init_stat_x(&sx2); |
1c3344a1 | 449 | sxp = &sx2; |
2dc7b91d WD |
450 | inherit = !preserve_perms; |
451 | } else | |
452 | inherit = !preserve_perms && file->flags & FLAG_DIR_CREATED; | |
453 | ||
454 | if (inherit && S_ISDIR(new_mode) && sxp->st.st_mode & S_ISGID) { | |
455 | /* We just created this directory and its setgid | |
456 | * bit is on, so make sure it stays on. */ | |
457 | new_mode |= S_ISGID; | |
667e72a1 | 458 | } |
c627d613 | 459 | |
e107b6b1 WD |
460 | if (daemon_chmod_modes && !S_ISLNK(new_mode)) |
461 | new_mode = tweak_mode(new_mode, daemon_chmod_modes); | |
462 | ||
1c3344a1 WD |
463 | #ifdef SUPPORT_ACLS |
464 | if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp)) | |
465 | get_acl(fname, sxp); | |
466 | #endif | |
467 | ||
16edf865 | 468 | #ifdef SUPPORT_XATTRS |
9439c0cb | 469 | if (am_root < 0) |
e107b6b1 | 470 | set_stat_xattr(fname, file, new_mode); |
4d7c8e6b WD |
471 | if (preserve_xattrs && fnamecmp) |
472 | set_xattr(fname, file, fnamecmp, sxp); | |
16edf865 WD |
473 | #endif |
474 | ||
f9998046 | 475 | if (!preserve_times || (S_ISDIR(sxp->st.st_mode) && preserve_times == 1)) |
36119f6e WD |
476 | flags |= ATTRS_SKIP_MTIME; |
477 | if (!(flags & ATTRS_SKIP_MTIME) | |
1c3344a1 | 478 | && cmp_time(sxp->st.st_mtime, file->modtime) != 0) { |
1a2e41af | 479 | int ret = set_modtime(fname, file->modtime, F_MOD_NSEC(file), sxp->st.st_mode); |
c8d34657 | 480 | if (ret < 0) { |
3f0211b6 | 481 | rsyserr(FERROR_XFER, errno, "failed to set times on %s", |
d62bcc17 | 482 | full_fname(fname)); |
1c3344a1 | 483 | goto cleanup; |
667e72a1 | 484 | } |
c8d34657 WD |
485 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
486 | updated = 1; | |
ee39281d | 487 | else |
1ed56a05 | 488 | file->flags |= FLAG_TIME_FAILED; |
667e72a1 AT |
489 | } |
490 | ||
9b25ef35 WD |
491 | change_uid = am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file); |
492 | change_gid = gid_ndx && !(file->flags & FLAG_SKIP_GROUP) | |
858d45f1 | 493 | && sxp->st.st_gid != (gid_t)F_GROUP(file); |
4f5b0756 | 494 | #if !defined HAVE_LCHOWN && !defined CHOWN_MODIFIES_SYMLINK |
2e52ba36 | 495 | if (S_ISLNK(sxp->st.st_mode)) { |
a41a1e87 | 496 | ; |
2e52ba36 | 497 | } else |
a41a1e87 | 498 | #endif |
460f6b99 | 499 | if (change_uid || change_gid) { |
951e826b | 500 | if (DEBUG_GTE(OWN, 1)) { |
ce37eb2d WD |
501 | if (change_uid) { |
502 | rprintf(FINFO, | |
4ade505c WD |
503 | "set uid of %s from %u to %u\n", |
504 | fname, (unsigned)sxp->st.st_uid, F_OWNER(file)); | |
ce37eb2d WD |
505 | } |
506 | if (change_gid) { | |
507 | rprintf(FINFO, | |
4ade505c WD |
508 | "set gid of %s from %u to %u\n", |
509 | fname, (unsigned)sxp->st.st_gid, F_GROUP(file)); | |
ce37eb2d WD |
510 | } |
511 | } | |
87629cf2 WD |
512 | if (am_root >= 0) { |
513 | if (do_lchown(fname, | |
514 | change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid, | |
515 | change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid) != 0) { | |
516 | /* We shouldn't have attempted to change uid | |
517 | * or gid unless have the privilege. */ | |
518 | rsyserr(FERROR_XFER, errno, "%s %s failed", | |
519 | change_uid ? "chown" : "chgrp", | |
520 | full_fname(fname)); | |
521 | goto cleanup; | |
522 | } | |
523 | /* A lchown had been done, so we need to re-stat if | |
524 | * the destination had the setuid or setgid bits set | |
525 | * (due to the side effect of the chown call). */ | |
526 | if (sxp->st.st_mode & (S_ISUID | S_ISGID)) { | |
527 | link_stat(fname, &sxp->st, | |
528 | keep_dirlinks && S_ISDIR(sxp->st.st_mode)); | |
529 | } | |
a5827a28 | 530 | } |
460f6b99 | 531 | updated = 1; |
667e72a1 | 532 | } |
c627d613 | 533 | |
1c3344a1 WD |
534 | #ifdef SUPPORT_ACLS |
535 | /* It's OK to call set_acl() now, even for a dir, as the generator | |
536 | * will enable owner-writability using chmod, if necessary. | |
537 | * | |
538 | * If set_acl() changes permission bits in the process of setting | |
539 | * an access ACL, it changes sxp->st.st_mode so we know whether we | |
540 | * need to chmod(). */ | |
ee1c00fe WD |
541 | if (preserve_acls && !S_ISLNK(new_mode)) { |
542 | if (set_acl(fname, file, sxp, new_mode) > 0) | |
543 | updated = 1; | |
544 | } | |
1c3344a1 WD |
545 | #endif |
546 | ||
4f5b0756 | 547 | #ifdef HAVE_CHMOD |
1c3344a1 | 548 | if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) { |
9439c0cb | 549 | int ret = am_root < 0 ? 0 : do_chmod(fname, new_mode); |
c8d34657 | 550 | if (ret < 0) { |
3f0211b6 | 551 | rsyserr(FERROR_XFER, errno, |
c8d34657 WD |
552 | "failed to set permissions on %s", |
553 | full_fname(fname)); | |
1c3344a1 | 554 | goto cleanup; |
667e72a1 | 555 | } |
c8d34657 WD |
556 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
557 | updated = 1; | |
667e72a1 | 558 | } |
c627d613 | 559 | #endif |
6a7cc46c | 560 | |
951e826b | 561 | if (INFO_GTE(NAME, 2) && flags & ATTRS_REPORT) { |
667e72a1 | 562 | if (updated) |
1925c344 | 563 | rprintf(FCLIENT, "%s\n", fname); |
667e72a1 | 564 | else |
1925c344 | 565 | rprintf(FCLIENT, "%s is uptodate\n", fname); |
667e72a1 | 566 | } |
1c3344a1 | 567 | cleanup: |
16edf865 | 568 | if (sxp == &sx2) { |
1c3344a1 | 569 | #ifdef SUPPORT_ACLS |
16edf865 WD |
570 | if (preserve_acls) |
571 | free_acl(&sx2); | |
1c3344a1 | 572 | #endif |
16edf865 WD |
573 | #ifdef SUPPORT_XATTRS |
574 | if (preserve_xattrs) | |
575 | free_xattr(&sx2); | |
576 | #endif | |
577 | } | |
667e72a1 | 578 | return updated; |
c627d613 AT |
579 | } |
580 | ||
b8e9c234 | 581 | RETSIGTYPE sig_int(UNUSED(int val)) |
34ccb63e | 582 | { |
d5a0b483 WD |
583 | /* KLUGE: if the user hits Ctrl-C while ssh is prompting |
584 | * for a password, then our cleanup's sending of a SIGUSR1 | |
585 | * signal to all our children may kill ssh before it has a | |
586 | * chance to restore the tty settings (i.e. turn echo back | |
587 | * on). By sleeping for a short time, ssh gets a bigger | |
588 | * chance to do the right thing. If child processes are | |
589 | * not ssh waiting for a password, then this tiny delay | |
590 | * shouldn't hurt anything. */ | |
591 | msleep(400); | |
65417579 | 592 | exit_cleanup(RERR_SIGNAL); |
c627d613 AT |
593 | } |
594 | ||
d8b1c923 | 595 | /* Finish off a file transfer: renaming the file and setting the file's |
83235dbc WD |
596 | * attributes (e.g. permissions, ownership, etc.). If the robust_rename() |
597 | * call is forced to copy the temp file and partialptr is both non-NULL and | |
598 | * not an absolute path, we stage the file into the partial-dir and then | |
599 | * rename it into place. This returns 1 on succcess or 0 on failure. */ | |
600 | int finish_transfer(const char *fname, const char *fnametmp, | |
601 | const char *fnamecmp, const char *partialptr, | |
602 | struct file_struct *file, int ok_to_set_time, | |
603 | int overwriting_basis) | |
c95da96a | 604 | { |
62c9e6b3 | 605 | int ret; |
83235dbc | 606 | const char *temp_copy_name = partialptr && *partialptr != '/' ? partialptr : NULL; |
62c9e6b3 | 607 | |
a3221d2a | 608 | if (inplace) { |
951e826b | 609 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 610 | rprintf(FINFO, "finishing %s\n", fname); |
d8b1c923 | 611 | fnametmp = fname; |
36119f6e | 612 | goto do_set_file_attrs; |
a3221d2a WD |
613 | } |
614 | ||
e9489cd6 | 615 | if (make_backups > 0 && overwriting_basis) { |
21cddef2 WD |
616 | int ok = make_backup(fname, False); |
617 | if (!ok) | |
e9489cd6 | 618 | return 1; |
21cddef2 | 619 | if (ok == 1 && fnamecmp == fname) |
4337eeb7 | 620 | fnamecmp = get_backup_name(fname); |
e9489cd6 | 621 | } |
e484f0cc | 622 | |
ebeacb36 | 623 | /* Change permissions before putting the file into place. */ |
16edf865 | 624 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 625 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
ebeacb36 | 626 | |
c95da96a | 627 | /* move tmp file over real file */ |
951e826b | 628 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 629 | rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname); |
83235dbc | 630 | ret = robust_rename(fnametmp, fname, temp_copy_name, |
d8b1c923 | 631 | file->mode & INITACCESSPERMS); |
3d061653 | 632 | if (ret < 0) { |
3f0211b6 | 633 | rsyserr(FERROR_XFER, errno, "%s %s -> \"%s\"", |
45c49b52 WD |
634 | ret == -2 ? "copy" : "rename", |
635 | full_fname(fnametmp), fname); | |
83235dbc WD |
636 | if (!partialptr || (ret == -2 && temp_copy_name) |
637 | || robust_rename(fnametmp, partialptr, NULL, | |
638 | file->mode & INITACCESSPERMS) < 0) | |
639 | do_unlink(fnametmp); | |
640 | return 0; | |
c95da96a | 641 | } |
ebeacb36 WD |
642 | if (ret == 0) { |
643 | /* The file was moved into place (not copied), so it's done. */ | |
83235dbc | 644 | return 1; |
ebeacb36 | 645 | } |
d8b1c923 WD |
646 | /* The file was copied, so tweak the perms of the copied file. If it |
647 | * was copied to partialptr, move it into its final destination. */ | |
83235dbc | 648 | fnametmp = temp_copy_name ? temp_copy_name : fname; |
d8b1c923 | 649 | |
36119f6e | 650 | do_set_file_attrs: |
16edf865 | 651 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 652 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
d8b1c923 | 653 | |
83235dbc | 654 | if (temp_copy_name) { |
d8b1c923 | 655 | if (do_rename(fnametmp, fname) < 0) { |
3f0211b6 | 656 | rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\"", |
d8b1c923 | 657 | full_fname(fnametmp), fname); |
83235dbc WD |
658 | return 0; |
659 | } | |
660 | handle_partial_dir(temp_copy_name, PDIR_DELETE); | |
d8b1c923 | 661 | } |
83235dbc | 662 | return 1; |
c95da96a | 663 | } |
c3e5e585 | 664 | |
e982d591 | 665 | struct file_list *flist_for_ndx(int ndx, const char *fatal_error_loc) |
f3d6d480 WD |
666 | { |
667 | struct file_list *flist = cur_flist; | |
668 | ||
87a34ce5 | 669 | if (!flist && !(flist = first_flist)) |
e982d591 | 670 | goto not_found; |
f3d6d480 | 671 | |
6755a7d7 | 672 | while (ndx < flist->ndx_start-1) { |
f3d6d480 | 673 | if (flist == first_flist) |
e982d591 | 674 | goto not_found; |
f3d6d480 WD |
675 | flist = flist->prev; |
676 | } | |
65b4e4b2 | 677 | while (ndx >= flist->ndx_start + flist->used) { |
f3d6d480 | 678 | if (!(flist = flist->next)) |
e982d591 | 679 | goto not_found; |
f3d6d480 WD |
680 | } |
681 | return flist; | |
e982d591 WD |
682 | |
683 | not_found: | |
684 | if (fatal_error_loc) { | |
685 | int first, last; | |
686 | if (first_flist) { | |
687 | first = first_flist->ndx_start - 1; | |
688 | last = first_flist->prev->ndx_start + first_flist->prev->used - 1; | |
689 | } else { | |
690 | first = 0; | |
691 | last = -1; | |
692 | } | |
693 | rprintf(FERROR, | |
694 | "File-list index %d not in %d - %d (%s) [%s]\n", | |
695 | ndx, first, last, fatal_error_loc, who_am_i()); | |
696 | exit_cleanup(RERR_PROTOCOL); | |
697 | } | |
698 | return NULL; | |
f3d6d480 WD |
699 | } |
700 | ||
c3e5e585 WD |
701 | const char *who_am_i(void) |
702 | { | |
ed9d969c | 703 | if (am_starting_up) |
794b0a03 | 704 | return am_server ? "server" : "client"; |
ebeacb36 | 705 | return am_sender ? "sender" : am_generator ? "generator" : "receiver"; |
c3e5e585 | 706 | } |