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 | |
d3d07a5e | 6 | * Copyright (C) 2003-2008 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; |
eabc85ef | 48 | extern int msgs2stderr; |
81b07870 | 49 | extern int keep_dirlinks; |
2f03f956 | 50 | extern int make_backups; |
f3d6d480 | 51 | extern struct file_list *cur_flist, *first_flist, *dir_flist; |
94d3725c | 52 | extern struct chmod_mode_struct *daemon_chmod_modes; |
332cf6df WD |
53 | #ifdef ICONV_OPTION |
54 | extern char *iconv_opt; | |
55 | #endif | |
fe055c71 | 56 | |
332cf6df | 57 | #ifdef ICONV_CONST |
ceccbacc | 58 | iconv_t ic_chck = (iconv_t)-1; |
2ac97930 | 59 | # ifdef ICONV_OPTION |
332cf6df | 60 | iconv_t ic_send = (iconv_t)-1, ic_recv = (iconv_t)-1; |
2ac97930 | 61 | # endif |
ceccbacc | 62 | |
2a62f5ee | 63 | static const char *default_charset(void) |
ceccbacc | 64 | { |
2ac97930 | 65 | # if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET |
ceccbacc | 66 | return locale_charset(); |
2ac97930 | 67 | # elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO |
7fc87d2d | 68 | return nl_langinfo(CODESET); |
2ac97930 | 69 | # else |
ceccbacc | 70 | return ""; /* Works with (at the very least) gnu iconv... */ |
2ac97930 | 71 | # endif |
ceccbacc WD |
72 | } |
73 | ||
6191429b | 74 | void setup_iconv(void) |
ceccbacc | 75 | { |
332cf6df WD |
76 | const char *defset = default_charset(); |
77 | # ifdef ICONV_OPTION | |
78 | const char *charset; | |
79 | char *cp; | |
2ac97930 | 80 | # endif |
332cf6df | 81 | |
e0f4a661 | 82 | if (!am_server && !allow_8bit_chars) { |
e0f4a661 WD |
83 | /* It's OK if this fails... */ |
84 | ic_chck = iconv_open(defset, defset); | |
ceccbacc | 85 | |
c9f540f3 | 86 | if (DEBUG_GTE(ICONV, 2)) { |
e0f4a661 WD |
87 | if (ic_chck == (iconv_t)-1) { |
88 | rprintf(FINFO, | |
c9f540f3 WD |
89 | "msg checking via isprint()" |
90 | " (iconv_open(\"%s\", \"%s\") errno: %d)\n", | |
e0f4a661 WD |
91 | defset, defset, errno); |
92 | } else { | |
93 | rprintf(FINFO, | |
c9f540f3 WD |
94 | "msg checking charset: %s\n", |
95 | defset); | |
e0f4a661 | 96 | } |
7fc87d2d | 97 | } |
c9f540f3 WD |
98 | } else |
99 | ic_chck = (iconv_t)-1; | |
332cf6df WD |
100 | |
101 | # ifdef ICONV_OPTION | |
102 | if (!iconv_opt) | |
103 | return; | |
104 | ||
105 | if ((cp = strchr(iconv_opt, ',')) != NULL) { | |
106 | if (am_server) /* A local transfer needs this. */ | |
107 | iconv_opt = cp + 1; | |
108 | else | |
109 | *cp = '\0'; | |
110 | } | |
111 | ||
112 | if (!*iconv_opt || (*iconv_opt == '.' && iconv_opt[1] == '\0')) | |
113 | charset = defset; | |
114 | else | |
115 | charset = iconv_opt; | |
116 | ||
117 | if ((ic_send = iconv_open(UTF8_CHARSET, charset)) == (iconv_t)-1) { | |
118 | rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n", | |
119 | UTF8_CHARSET, charset); | |
120 | exit_cleanup(RERR_UNSUPPORTED); | |
121 | } | |
122 | ||
123 | if ((ic_recv = iconv_open(charset, UTF8_CHARSET)) == (iconv_t)-1) { | |
124 | rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n", | |
125 | charset, UTF8_CHARSET); | |
126 | exit_cleanup(RERR_UNSUPPORTED); | |
127 | } | |
128 | ||
c9f540f3 WD |
129 | if (DEBUG_GTE(ICONV, 1)) { |
130 | rprintf(FINFO, "[%s] charset: %s\n", | |
131 | who_am_i(), *charset ? charset : "[LOCALE]"); | |
332cf6df WD |
132 | } |
133 | # endif | |
ceccbacc | 134 | } |
2ac97930 | 135 | |
2ac97930 WD |
136 | /* This function converts the characters in the "in" xbuf into characters |
137 | * in the "out" xbuf. The "len" of the "in" xbuf is used starting from its | |
138 | * "pos". The "size" of the "out" xbuf restricts how many characters can be | |
139 | * stored, starting at its "pos+len" position. Note that the last byte of | |
140 | * the buffer is never used, which reserves space for a terminating '\0'. | |
141 | * We return a 0 on success or a -1 on error. An error also sets errno to | |
142 | * E2BIG, EILSEQ, or EINVAL (see below); otherwise errno will be set to 0. | |
143 | * The "in" xbuf is altered to update "pos" and "len". The "out" xbuf has | |
144 | * data appended, and its "len" incremented. If ICB_EXPAND_OUT is set in | |
145 | * "flags", the "out" xbuf will also be allocated if empty, and expanded if | |
146 | * too small (so E2BIG will not be returned). If ICB_INCLUDE_BAD is set in | |
147 | * "flags", any badly-encoded chars are included verbatim in the "out" xbuf, | |
148 | * so EILSEQ will not be returned. Likewise for ICB_INCLUDE_INCOMPLETE with | |
149 | * respect to an incomplete multi-byte char at the end, which ensures that | |
150 | * EINVAL is not returned. Anytime "in.pos" is 0 we will reset the iconv() | |
151 | * state prior to processing the characters. */ | |
152 | int iconvbufs(iconv_t ic, xbuf *in, xbuf *out, int flags) | |
153 | { | |
154 | ICONV_CONST char *ibuf; | |
155 | size_t icnt, ocnt; | |
156 | char *obuf; | |
157 | ||
158 | if (!out->size && flags & ICB_EXPAND_OUT) | |
159 | alloc_xbuf(out, 1024); | |
160 | ||
161 | if (!in->pos) | |
162 | iconv(ic, NULL, 0, NULL, 0); | |
163 | ||
164 | ibuf = in->buf + in->pos; | |
165 | icnt = in->len; | |
166 | ||
167 | obuf = out->buf + (out->pos + out->len); | |
168 | ocnt = out->size - (out->pos + out->len) - 1; | |
169 | ||
170 | while (icnt) { | |
171 | while (iconv(ic, &ibuf, &icnt, &obuf, &ocnt) == (size_t)-1) { | |
172 | if (errno == EINTR) | |
173 | continue; | |
174 | if (errno == EINVAL) { | |
175 | if (!(flags & ICB_INCLUDE_INCOMPLETE)) | |
176 | goto finish; | |
177 | } else if (errno == EILSEQ) { | |
178 | if (!(flags & ICB_INCLUDE_BAD)) | |
179 | goto finish; | |
180 | } else { | |
181 | size_t opos = obuf - out->buf; | |
182 | if (!(flags & ICB_EXPAND_OUT)) { | |
183 | errno = E2BIG; | |
184 | goto finish; | |
185 | } | |
186 | realloc_xbuf(out, out->size + 1024); | |
187 | obuf = out->buf + opos; | |
188 | ocnt += 1024; | |
189 | continue; | |
190 | } | |
191 | *obuf++ = *ibuf++; | |
192 | ocnt--, icnt--; | |
193 | } | |
194 | } | |
195 | ||
196 | errno = 0; | |
197 | ||
198 | finish: | |
199 | in->len = icnt; | |
200 | in->pos = ibuf - in->buf; | |
201 | out->len = obuf - out->buf - out->pos; | |
202 | ||
203 | return errno ? -1 : 0; | |
204 | } | |
ceccbacc | 205 | #endif |
fe055c71 | 206 | |
53936ef9 WD |
207 | void send_protected_args(int fd, char *args[]) |
208 | { | |
7abcfd85 | 209 | int i; |
53936ef9 | 210 | #ifdef ICONV_OPTION |
7abcfd85 | 211 | int convert = ic_send != (iconv_t)-1; |
53936ef9 WD |
212 | xbuf outbuf, inbuf; |
213 | ||
214 | if (convert) | |
215 | alloc_xbuf(&outbuf, 1024); | |
216 | #endif | |
217 | ||
218 | for (i = 0; args[i]; i++) {} /* find first NULL */ | |
219 | args[i] = "rsync"; /* set a new arg0 */ | |
951e826b | 220 | if (DEBUG_GTE(CMD, 1)) |
53936ef9 WD |
221 | print_child_argv("protected args:", args + i + 1); |
222 | do { | |
223 | #ifdef ICONV_OPTION | |
224 | if (convert) { | |
225 | INIT_XBUF_STRLEN(inbuf, args[i]); | |
226 | iconvbufs(ic_send, &inbuf, &outbuf, | |
227 | ICB_EXPAND_OUT | ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE); | |
228 | outbuf.buf[outbuf.len] = '\0'; | |
229 | write_buf(fd, outbuf.buf, outbuf.len + 1); | |
230 | outbuf.len = 0; | |
231 | } else | |
232 | #endif | |
233 | write_buf(fd, args[i], strlen(args[i]) + 1); | |
234 | } while (args[++i]); | |
235 | write_byte(fd, 0); | |
236 | ||
237 | #ifdef ICONV_OPTION | |
238 | if (convert) | |
239 | free(outbuf.buf); | |
240 | #endif | |
241 | } | |
242 | ||
16edf865 WD |
243 | int read_ndx_and_attrs(int f_in, int *iflag_ptr, uchar *type_ptr, |
244 | char *buf, int *len_ptr) | |
d1c178dd | 245 | { |
f3d6d480 WD |
246 | int len, iflags = 0; |
247 | struct file_list *flist; | |
d1c178dd | 248 | uchar fnamecmp_type = FNAMECMP_FNAME; |
951e826b | 249 | int ndx; |
f3d6d480 WD |
250 | |
251 | read_loop: | |
252 | while (1) { | |
9ae7a2cd | 253 | ndx = read_ndx(f_in); |
f3d6d480 WD |
254 | |
255 | if (ndx >= 0) | |
256 | break; | |
257 | if (ndx == NDX_DONE) | |
258 | return ndx; | |
3ea6e0e7 | 259 | if (!inc_recurse || am_sender) |
f3d6d480 WD |
260 | goto invalid_ndx; |
261 | if (ndx == NDX_FLIST_EOF) { | |
262 | flist_eof = 1; | |
332cf6df | 263 | send_msg(MSG_FLIST_EOF, "", 0, 0); |
f3d6d480 WD |
264 | continue; |
265 | } | |
266 | ndx = NDX_FLIST_OFFSET - ndx; | |
9decb4d2 | 267 | if (ndx < 0 || ndx >= dir_flist->used) { |
f3d6d480 WD |
268 | ndx = NDX_FLIST_OFFSET - ndx; |
269 | rprintf(FERROR, | |
59fd2a5e WD |
270 | "[%s] Invalid dir index: %d (%d - %d)\n", |
271 | who_am_i(), ndx, NDX_FLIST_OFFSET, | |
9decb4d2 | 272 | NDX_FLIST_OFFSET - dir_flist->used + 1); |
f3d6d480 WD |
273 | exit_cleanup(RERR_PROTOCOL); |
274 | } | |
f3d6d480 WD |
275 | |
276 | /* Send everything read from f_in to msg_fd_out. */ | |
951e826b | 277 | if (DEBUG_GTE(FLIST, 2)) { |
1faa1a6d WD |
278 | rprintf(FINFO, "[%s] receiving flist for dir %d\n", |
279 | who_am_i(), ndx); | |
280 | } | |
eabc85ef WD |
281 | if (!msgs2stderr) |
282 | negate_output_levels(); /* turn off all info/debug output */ | |
b7386d23 WD |
283 | send_msg_int(MSG_FLIST, ndx); |
284 | start_flist_forward(f_in); | |
f3d6d480 WD |
285 | flist = recv_file_list(f_in); |
286 | flist->parent_ndx = ndx; | |
287 | stop_flist_forward(); | |
eabc85ef WD |
288 | if (!msgs2stderr) |
289 | negate_output_levels(); /* restore info/debug output */ | |
f3d6d480 WD |
290 | } |
291 | ||
292 | iflags = protocol_version >= 29 ? read_shortint(f_in) | |
d1c178dd WD |
293 | : ITEM_TRANSFER | ITEM_MISSING_DATA; |
294 | ||
f3d6d480 WD |
295 | /* Honor the old-style keep-alive indicator. */ |
296 | if (protocol_version < 30 | |
9decb4d2 | 297 | && ndx == cur_flist->used && iflags == ITEM_IS_NEW) { |
f3d6d480 WD |
298 | if (am_sender) |
299 | maybe_send_keepalive(); | |
300 | goto read_loop; | |
301 | } | |
302 | ||
303 | if (!(flist = flist_for_ndx(ndx))) { | |
65b4e4b2 | 304 | int start, used; |
f3d6d480 | 305 | invalid_ndx: |
65b4e4b2 WD |
306 | start = first_flist ? first_flist->ndx_start : 0; |
307 | used = first_flist ? first_flist->used : 0; | |
f3d6d480 WD |
308 | rprintf(FERROR, |
309 | "Invalid file index: %d (%d - %d) with iflags %x [%s]\n", | |
65b4e4b2 | 310 | ndx, start - 1, start + used -1, iflags, who_am_i()); |
d1c178dd WD |
311 | exit_cleanup(RERR_PROTOCOL); |
312 | } | |
f3d6d480 | 313 | cur_flist = flist; |
d1c178dd WD |
314 | |
315 | if (iflags & ITEM_BASIS_TYPE_FOLLOWS) | |
316 | fnamecmp_type = read_byte(f_in); | |
317 | *type_ptr = fnamecmp_type; | |
318 | ||
319 | if (iflags & ITEM_XNAME_FOLLOWS) { | |
320 | if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0) | |
321 | exit_cleanup(RERR_PROTOCOL); | |
322 | } else { | |
323 | *buf = '\0'; | |
324 | len = -1; | |
325 | } | |
326 | *len_ptr = len; | |
327 | ||
328 | if (iflags & ITEM_TRANSFER) { | |
f3d6d480 | 329 | int i = ndx - cur_flist->ndx_start; |
6755a7d7 | 330 | if (i < 0 || !S_ISREG(cur_flist->files[i]->mode)) { |
d1c178dd WD |
331 | rprintf(FERROR, |
332 | "received request to transfer non-regular file: %d [%s]\n", | |
333 | ndx, who_am_i()); | |
334 | exit_cleanup(RERR_PROTOCOL); | |
335 | } | |
d1c178dd WD |
336 | } |
337 | ||
f3d6d480 WD |
338 | *iflag_ptr = iflags; |
339 | return ndx; | |
d1c178dd WD |
340 | } |
341 | ||
c627d613 AT |
342 | /* |
343 | free a sums struct | |
344 | */ | |
2f03f956 | 345 | void free_sums(struct sum_struct *s) |
c627d613 | 346 | { |
298c10d5 AT |
347 | if (s->sums) free(s->sums); |
348 | free(s); | |
c627d613 AT |
349 | } |
350 | ||
81284832 WD |
351 | /* This is only called when we aren't preserving permissions. Figure out what |
352 | * the permissions should be and return them merged back into the mode. */ | |
1c3344a1 WD |
353 | mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms, |
354 | int exists) | |
81284832 | 355 | { |
67f8a41b | 356 | int new_mode; |
9b499e95 | 357 | /* If the file already exists, we'll return the local permissions, |
81284832 WD |
358 | * possibly tweaked by the --executability option. */ |
359 | if (exists) { | |
67f8a41b | 360 | new_mode = (flist_mode & ~CHMOD_BITS) | (stat_mode & CHMOD_BITS); |
81284832 WD |
361 | if (preserve_executability && S_ISREG(flist_mode)) { |
362 | /* If the source file is executable, grant execute | |
363 | * rights to everyone who can read, but ONLY if the | |
364 | * file isn't already executable. */ | |
365 | if (!(flist_mode & 0111)) | |
67f8a41b WD |
366 | new_mode &= ~0111; |
367 | else if (!(stat_mode & 0111)) | |
368 | new_mode |= (new_mode & 0444) >> 2; | |
81284832 | 369 | } |
67f8a41b | 370 | } else { |
1c3344a1 WD |
371 | /* Apply destination default permissions and turn |
372 | * off special permissions. */ | |
373 | new_mode = flist_mode & (~CHMOD_BITS | dflt_perms); | |
67f8a41b | 374 | } |
67f8a41b | 375 | return new_mode; |
81284832 WD |
376 | } |
377 | ||
13710874 | 378 | int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp, |
16edf865 | 379 | const char *fnamecmp, int flags) |
c627d613 | 380 | { |
667e72a1 | 381 | int updated = 0; |
13710874 | 382 | stat_x sx2; |
460f6b99 | 383 | int change_uid, change_gid; |
519d55a9 | 384 | mode_t new_mode = file->mode; |
2dc7b91d | 385 | int inherit; |
c627d613 | 386 | |
1c3344a1 | 387 | if (!sxp) { |
f227ffe4 WD |
388 | if (dry_run) |
389 | return 1; | |
1c3344a1 | 390 | if (link_stat(fname, &sx2.st, 0) < 0) { |
3f0211b6 | 391 | rsyserr(FERROR_XFER, errno, "stat %s failed", |
d62bcc17 | 392 | full_fname(fname)); |
667e72a1 AT |
393 | return 0; |
394 | } | |
1c3344a1 WD |
395 | #ifdef SUPPORT_ACLS |
396 | sx2.acc_acl = sx2.def_acl = NULL; | |
16edf865 WD |
397 | #endif |
398 | #ifdef SUPPORT_XATTRS | |
399 | sx2.xattr = NULL; | |
1c3344a1 | 400 | #endif |
1c3344a1 | 401 | sxp = &sx2; |
2dc7b91d WD |
402 | inherit = !preserve_perms; |
403 | } else | |
404 | inherit = !preserve_perms && file->flags & FLAG_DIR_CREATED; | |
405 | ||
406 | if (inherit && S_ISDIR(new_mode) && sxp->st.st_mode & S_ISGID) { | |
407 | /* We just created this directory and its setgid | |
408 | * bit is on, so make sure it stays on. */ | |
409 | new_mode |= S_ISGID; | |
667e72a1 | 410 | } |
c627d613 | 411 | |
e107b6b1 WD |
412 | if (daemon_chmod_modes && !S_ISLNK(new_mode)) |
413 | new_mode = tweak_mode(new_mode, daemon_chmod_modes); | |
414 | ||
1c3344a1 WD |
415 | #ifdef SUPPORT_ACLS |
416 | if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp)) | |
417 | get_acl(fname, sxp); | |
418 | #endif | |
419 | ||
16edf865 | 420 | #ifdef SUPPORT_XATTRS |
9439c0cb | 421 | if (am_root < 0) |
e107b6b1 | 422 | set_stat_xattr(fname, file, new_mode); |
4d7c8e6b WD |
423 | if (preserve_xattrs && fnamecmp) |
424 | set_xattr(fname, file, fnamecmp, sxp); | |
16edf865 WD |
425 | #endif |
426 | ||
f9998046 | 427 | if (!preserve_times || (S_ISDIR(sxp->st.st_mode) && preserve_times == 1)) |
36119f6e WD |
428 | flags |= ATTRS_SKIP_MTIME; |
429 | if (!(flags & ATTRS_SKIP_MTIME) | |
1c3344a1 WD |
430 | && cmp_time(sxp->st.st_mtime, file->modtime) != 0) { |
431 | int ret = set_modtime(fname, file->modtime, sxp->st.st_mode); | |
c8d34657 | 432 | if (ret < 0) { |
3f0211b6 | 433 | rsyserr(FERROR_XFER, errno, "failed to set times on %s", |
d62bcc17 | 434 | full_fname(fname)); |
1c3344a1 | 435 | goto cleanup; |
667e72a1 | 436 | } |
c8d34657 WD |
437 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
438 | updated = 1; | |
ee39281d | 439 | else |
1ed56a05 | 440 | file->flags |= FLAG_TIME_FAILED; |
667e72a1 AT |
441 | } |
442 | ||
9b25ef35 WD |
443 | change_uid = am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file); |
444 | change_gid = gid_ndx && !(file->flags & FLAG_SKIP_GROUP) | |
858d45f1 | 445 | && sxp->st.st_gid != (gid_t)F_GROUP(file); |
4f5b0756 | 446 | #if !defined HAVE_LCHOWN && !defined CHOWN_MODIFIES_SYMLINK |
2e52ba36 | 447 | if (S_ISLNK(sxp->st.st_mode)) { |
a41a1e87 | 448 | ; |
2e52ba36 | 449 | } else |
a41a1e87 | 450 | #endif |
460f6b99 | 451 | if (change_uid || change_gid) { |
951e826b | 452 | if (DEBUG_GTE(OWN, 1)) { |
ce37eb2d WD |
453 | if (change_uid) { |
454 | rprintf(FINFO, | |
4ade505c WD |
455 | "set uid of %s from %u to %u\n", |
456 | fname, (unsigned)sxp->st.st_uid, F_OWNER(file)); | |
ce37eb2d WD |
457 | } |
458 | if (change_gid) { | |
459 | rprintf(FINFO, | |
4ade505c WD |
460 | "set gid of %s from %u to %u\n", |
461 | fname, (unsigned)sxp->st.st_gid, F_GROUP(file)); | |
ce37eb2d WD |
462 | } |
463 | } | |
87629cf2 WD |
464 | if (am_root >= 0) { |
465 | if (do_lchown(fname, | |
466 | change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid, | |
467 | change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid) != 0) { | |
468 | /* We shouldn't have attempted to change uid | |
469 | * or gid unless have the privilege. */ | |
470 | rsyserr(FERROR_XFER, errno, "%s %s failed", | |
471 | change_uid ? "chown" : "chgrp", | |
472 | full_fname(fname)); | |
473 | goto cleanup; | |
474 | } | |
475 | /* A lchown had been done, so we need to re-stat if | |
476 | * the destination had the setuid or setgid bits set | |
477 | * (due to the side effect of the chown call). */ | |
478 | if (sxp->st.st_mode & (S_ISUID | S_ISGID)) { | |
479 | link_stat(fname, &sxp->st, | |
480 | keep_dirlinks && S_ISDIR(sxp->st.st_mode)); | |
481 | } | |
a5827a28 | 482 | } |
460f6b99 | 483 | updated = 1; |
667e72a1 | 484 | } |
c627d613 | 485 | |
1c3344a1 WD |
486 | #ifdef SUPPORT_ACLS |
487 | /* It's OK to call set_acl() now, even for a dir, as the generator | |
488 | * will enable owner-writability using chmod, if necessary. | |
489 | * | |
490 | * If set_acl() changes permission bits in the process of setting | |
491 | * an access ACL, it changes sxp->st.st_mode so we know whether we | |
492 | * need to chmod(). */ | |
493 | if (preserve_acls && !S_ISLNK(new_mode) && set_acl(fname, file, sxp) == 0) | |
494 | updated = 1; | |
495 | #endif | |
496 | ||
4f5b0756 | 497 | #ifdef HAVE_CHMOD |
1c3344a1 | 498 | if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) { |
9439c0cb | 499 | int ret = am_root < 0 ? 0 : do_chmod(fname, new_mode); |
c8d34657 | 500 | if (ret < 0) { |
3f0211b6 | 501 | rsyserr(FERROR_XFER, errno, |
c8d34657 WD |
502 | "failed to set permissions on %s", |
503 | full_fname(fname)); | |
1c3344a1 | 504 | goto cleanup; |
667e72a1 | 505 | } |
c8d34657 WD |
506 | if (ret == 0) /* ret == 1 if symlink could not be set */ |
507 | updated = 1; | |
667e72a1 | 508 | } |
c627d613 | 509 | #endif |
6a7cc46c | 510 | |
951e826b | 511 | if (INFO_GTE(NAME, 2) && flags & ATTRS_REPORT) { |
667e72a1 | 512 | if (updated) |
1925c344 | 513 | rprintf(FCLIENT, "%s\n", fname); |
667e72a1 | 514 | else |
1925c344 | 515 | rprintf(FCLIENT, "%s is uptodate\n", fname); |
667e72a1 | 516 | } |
1c3344a1 | 517 | cleanup: |
16edf865 | 518 | if (sxp == &sx2) { |
1c3344a1 | 519 | #ifdef SUPPORT_ACLS |
16edf865 WD |
520 | if (preserve_acls) |
521 | free_acl(&sx2); | |
1c3344a1 | 522 | #endif |
16edf865 WD |
523 | #ifdef SUPPORT_XATTRS |
524 | if (preserve_xattrs) | |
525 | free_xattr(&sx2); | |
526 | #endif | |
527 | } | |
667e72a1 | 528 | return updated; |
c627d613 AT |
529 | } |
530 | ||
b8e9c234 | 531 | RETSIGTYPE sig_int(UNUSED(int val)) |
34ccb63e | 532 | { |
d5a0b483 WD |
533 | /* KLUGE: if the user hits Ctrl-C while ssh is prompting |
534 | * for a password, then our cleanup's sending of a SIGUSR1 | |
535 | * signal to all our children may kill ssh before it has a | |
536 | * chance to restore the tty settings (i.e. turn echo back | |
537 | * on). By sleeping for a short time, ssh gets a bigger | |
538 | * chance to do the right thing. If child processes are | |
539 | * not ssh waiting for a password, then this tiny delay | |
540 | * shouldn't hurt anything. */ | |
541 | msleep(400); | |
65417579 | 542 | exit_cleanup(RERR_SIGNAL); |
c627d613 AT |
543 | } |
544 | ||
d8b1c923 | 545 | /* Finish off a file transfer: renaming the file and setting the file's |
83235dbc WD |
546 | * attributes (e.g. permissions, ownership, etc.). If the robust_rename() |
547 | * call is forced to copy the temp file and partialptr is both non-NULL and | |
548 | * not an absolute path, we stage the file into the partial-dir and then | |
549 | * rename it into place. This returns 1 on succcess or 0 on failure. */ | |
550 | int finish_transfer(const char *fname, const char *fnametmp, | |
551 | const char *fnamecmp, const char *partialptr, | |
552 | struct file_struct *file, int ok_to_set_time, | |
553 | int overwriting_basis) | |
c95da96a | 554 | { |
62c9e6b3 | 555 | int ret; |
83235dbc | 556 | const char *temp_copy_name = partialptr && *partialptr != '/' ? partialptr : NULL; |
62c9e6b3 | 557 | |
a3221d2a | 558 | if (inplace) { |
951e826b | 559 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 560 | rprintf(FINFO, "finishing %s\n", fname); |
d8b1c923 | 561 | fnametmp = fname; |
36119f6e | 562 | goto do_set_file_attrs; |
a3221d2a WD |
563 | } |
564 | ||
e9489cd6 WD |
565 | if (make_backups > 0 && overwriting_basis) { |
566 | if (!make_backup(fname)) | |
567 | return 1; | |
4337eeb7 WD |
568 | if (fnamecmp == fname) |
569 | fnamecmp = get_backup_name(fname); | |
e9489cd6 | 570 | } |
e484f0cc | 571 | |
ebeacb36 | 572 | /* Change permissions before putting the file into place. */ |
16edf865 | 573 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 574 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
ebeacb36 | 575 | |
c95da96a | 576 | /* move tmp file over real file */ |
951e826b | 577 | if (DEBUG_GTE(RECV, 1)) |
45c49b52 | 578 | rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname); |
83235dbc | 579 | ret = robust_rename(fnametmp, fname, temp_copy_name, |
d8b1c923 | 580 | file->mode & INITACCESSPERMS); |
3d061653 | 581 | if (ret < 0) { |
3f0211b6 | 582 | rsyserr(FERROR_XFER, errno, "%s %s -> \"%s\"", |
45c49b52 WD |
583 | ret == -2 ? "copy" : "rename", |
584 | full_fname(fnametmp), fname); | |
83235dbc WD |
585 | if (!partialptr || (ret == -2 && temp_copy_name) |
586 | || robust_rename(fnametmp, partialptr, NULL, | |
587 | file->mode & INITACCESSPERMS) < 0) | |
588 | do_unlink(fnametmp); | |
589 | return 0; | |
c95da96a | 590 | } |
ebeacb36 WD |
591 | if (ret == 0) { |
592 | /* The file was moved into place (not copied), so it's done. */ | |
83235dbc | 593 | return 1; |
ebeacb36 | 594 | } |
d8b1c923 WD |
595 | /* The file was copied, so tweak the perms of the copied file. If it |
596 | * was copied to partialptr, move it into its final destination. */ | |
83235dbc | 597 | fnametmp = temp_copy_name ? temp_copy_name : fname; |
d8b1c923 | 598 | |
36119f6e | 599 | do_set_file_attrs: |
16edf865 | 600 | set_file_attrs(fnametmp, file, NULL, fnamecmp, |
36119f6e | 601 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); |
d8b1c923 | 602 | |
83235dbc | 603 | if (temp_copy_name) { |
d8b1c923 | 604 | if (do_rename(fnametmp, fname) < 0) { |
3f0211b6 | 605 | rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\"", |
d8b1c923 | 606 | full_fname(fnametmp), fname); |
83235dbc WD |
607 | return 0; |
608 | } | |
609 | handle_partial_dir(temp_copy_name, PDIR_DELETE); | |
d8b1c923 | 610 | } |
83235dbc | 611 | return 1; |
c95da96a | 612 | } |
c3e5e585 | 613 | |
f3d6d480 WD |
614 | struct file_list *flist_for_ndx(int ndx) |
615 | { | |
616 | struct file_list *flist = cur_flist; | |
617 | ||
87a34ce5 | 618 | if (!flist && !(flist = first_flist)) |
f3d6d480 WD |
619 | return NULL; |
620 | ||
6755a7d7 | 621 | while (ndx < flist->ndx_start-1) { |
f3d6d480 WD |
622 | if (flist == first_flist) |
623 | return NULL; | |
624 | flist = flist->prev; | |
625 | } | |
65b4e4b2 | 626 | while (ndx >= flist->ndx_start + flist->used) { |
f3d6d480 WD |
627 | if (!(flist = flist->next)) |
628 | return NULL; | |
629 | } | |
630 | return flist; | |
631 | } | |
632 | ||
c3e5e585 WD |
633 | const char *who_am_i(void) |
634 | { | |
ed9d969c | 635 | if (am_starting_up) |
794b0a03 | 636 | return am_server ? "server" : "client"; |
ebeacb36 | 637 | return am_sender ? "sender" : am_generator ? "generator" : "receiver"; |
c3e5e585 | 638 | } |