Commit | Line | Data |
---|---|---|
0f78b815 WD |
1 | /* |
2 | * The startup routines, including main(), for rsync. | |
3 | * | |
4 | * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org> | |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org> | |
7 | * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
e7c67065 WD |
19 | * You should have received a copy of the GNU General Public License along |
20 | * with this program; if not, write to the Free Software Foundation, Inc., | |
21 | * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
0f78b815 | 22 | */ |
c627d613 AT |
23 | |
24 | #include "rsync.h" | |
d9401514 WD |
25 | #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H |
26 | #include <locale.h> | |
27 | #endif | |
c627d613 | 28 | |
50839b4b WD |
29 | extern int verbose; |
30 | extern int dry_run; | |
31 | extern int list_only; | |
32eda096 | 32 | extern int am_root; |
d9c7edf6 WD |
33 | extern int am_server; |
34 | extern int am_sender; | |
b695f242 | 35 | extern int am_generator; |
d9c7edf6 | 36 | extern int am_daemon; |
32eda096 | 37 | extern int blocking_io; |
47c11975 | 38 | extern int remove_source_files; |
32eda096 | 39 | extern int daemon_over_rsh; |
bf26aa22 | 40 | extern int need_messages_from_generator; |
051182cb | 41 | extern int kluge_around_eof; |
32eda096 | 42 | extern int do_stats; |
32eda096 WD |
43 | extern int log_got_error; |
44 | extern int module_id; | |
bb6721dc | 45 | extern int copy_links; |
a695b379 | 46 | extern int copy_dirlinks; |
83926d3c | 47 | extern int keep_dirlinks; |
32eda096 | 48 | extern int preserve_hard_links; |
d04e9c51 | 49 | extern int protocol_version; |
32eda096 WD |
50 | extern int recurse; |
51 | extern int relative_paths; | |
7c58c991 | 52 | extern int sanitize_paths; |
c2a2147a | 53 | extern int curr_dir_depth; |
615a5415 | 54 | extern int curr_dir_len; |
7c58c991 | 55 | extern int module_id; |
32eda096 | 56 | extern int rsync_port; |
b1df18d7 | 57 | extern int whole_file; |
32eda096 WD |
58 | extern int read_batch; |
59 | extern int write_batch; | |
b9f592fb | 60 | extern int batch_fd; |
c0d8e84c | 61 | extern int batch_gen_fd; |
32eda096 WD |
62 | extern int filesfrom_fd; |
63 | extern pid_t cleanup_child_pid; | |
50839b4b | 64 | extern struct stats stats; |
860236bf | 65 | extern char *filesfrom_host; |
c2c8db91 | 66 | extern char *partial_dir; |
7c58c991 | 67 | extern char *basis_dir[]; |
32eda096 WD |
68 | extern char *rsync_path; |
69 | extern char *shell_cmd; | |
9b3318b0 | 70 | extern char *batch_name; |
615a5415 | 71 | extern char curr_dir[MAXPATHLEN]; |
c2c8db91 | 72 | extern struct filter_list_struct server_filter_list; |
57dee64e WD |
73 | |
74 | int local_server = 0; | |
2a94207a | 75 | int new_root_dir = 0; |
05278935 | 76 | mode_t orig_umask = 0; |
a00628b3 | 77 | struct file_list *the_file_list; |
c627d613 | 78 | |
91c5833b WD |
79 | /* There's probably never more than at most 2 outstanding child processes, |
80 | * but set it higher, just in case. */ | |
84e6d6fd | 81 | #define MAXCHILDPROCS 7 |
ee7118a8 | 82 | |
8261af74 WD |
83 | #ifdef HAVE_SIGACTION |
84 | # ifdef HAVE_SIGPROCMASK | |
85 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
86 | # else | |
87 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
88 | # endif | |
60ee01f5 WD |
89 | static struct sigaction sigact; |
90 | #endif | |
91 | ||
ee7118a8 DD |
92 | struct pid_status { |
93 | pid_t pid; | |
84e6d6fd | 94 | int status; |
ee7118a8 DD |
95 | } pid_stat_table[MAXCHILDPROCS]; |
96 | ||
33c4b445 WD |
97 | static time_t starttime, endtime; |
98 | static int64 total_read, total_written; | |
99 | ||
e5a2b854 | 100 | static void show_malloc_stats(void); |
82980a23 | 101 | |
97d8e709 | 102 | /* Works like waitpid(), but if we already harvested the child pid in our |
6d59ac19 | 103 | * remember_children(), we succeed instead of returning an error. */ |
97d8e709 | 104 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) |
82980a23 | 105 | { |
97d8e709 | 106 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 107 | |
6fb812f7 | 108 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 | 109 | /* Status of requested child no longer available: check to |
6d59ac19 | 110 | * see if it was processed by remember_children(). */ |
97d8e709 | 111 | int cnt; |
84e6d6fd | 112 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 113 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 114 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 115 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 116 | return pid; |
ee7118a8 DD |
117 | } |
118 | } | |
119 | } | |
120 | ||
97d8e709 WD |
121 | return waited_pid; |
122 | } | |
123 | ||
124 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 125 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
126 | { |
127 | pid_t waited_pid; | |
128 | int status; | |
129 | ||
130 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
131 | msleep(20); | |
132 | io_flush(FULL_FLUSH); | |
133 | } | |
134 | ||
d9c7edf6 WD |
135 | /* TODO: If the child exited on a signal, then log an |
136 | * appropriate error message. Perhaps we should also accept a | |
137 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 138 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
139 | if (waited_pid < 0) { |
140 | rsyserr(FERROR, errno, "waitpid"); | |
141 | *exit_code_ptr = RERR_WAITCHILD; | |
142 | } else if (!WIFEXITED(status)) { | |
40e6752f | 143 | #ifdef WCOREDUMP |
dbefb6b4 | 144 | if (WCOREDUMP(status)) |
84e6d6fd | 145 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
146 | else |
147 | #endif | |
148 | if (WIFSIGNALED(status)) | |
84e6d6fd | 149 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 150 | else |
84e6d6fd | 151 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 152 | } else |
84e6d6fd | 153 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
154 | } |
155 | ||
b9f592fb WD |
156 | /* This function gets called from all 3 processes. We want the client side |
157 | * to actually output the text, but the sender is the only process that has | |
158 | * all the stats we need. So, if we're a client sender, we do the report. | |
159 | * If we're a server sender, we write the stats on the supplied fd. If | |
160 | * we're the client receiver we read the stats from the supplied fd and do | |
161 | * the report. All processes might also generate a set of debug stats, if | |
162 | * the verbose level is high enough (this is the only thing that the | |
163 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 164 | static void handle_stats(int f) |
c627d613 | 165 | { |
33c4b445 WD |
166 | endtime = time(NULL); |
167 | ||
b9f592fb | 168 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
169 | total_read = stats.total_read; |
170 | total_written = stats.total_written; | |
7a6421fa | 171 | |
7bb7058e | 172 | if (do_stats && verbose > 1) { |
5c15e29f | 173 | /* These come out from every process */ |
7bb7058e | 174 | show_malloc_stats(); |
86943126 | 175 | show_flist_stats(); |
5c15e29f MP |
176 | } |
177 | ||
e5fbaa71 S |
178 | if (am_generator) |
179 | return; | |
180 | ||
248fbb8c | 181 | if (am_daemon) { |
83926d3c WD |
182 | if (f == -1 || !am_sender) |
183 | return; | |
248fbb8c AT |
184 | } |
185 | ||
e19452a9 | 186 | if (am_server) { |
3e491682 | 187 | if (am_sender) { |
b9f592fb WD |
188 | write_longint(f, total_read); |
189 | write_longint(f, total_written); | |
190 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
191 | if (protocol_version >= 29) { |
192 | write_longint(f, stats.flist_buildtime); | |
193 | write_longint(f, stats.flist_xfertime); | |
194 | } | |
e19452a9 | 195 | } |
7a6421fa AT |
196 | return; |
197 | } | |
e19452a9 DD |
198 | |
199 | /* this is the client */ | |
d9c7edf6 | 200 | |
9d19f8a5 | 201 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
0f78b815 | 202 | ; |
9d19f8a5 | 203 | else if (!am_sender) { |
58c5c245 WD |
204 | /* Read the first two in opposite order because the meaning of |
205 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
206 | total_written = read_longint(f); |
207 | total_read = read_longint(f); | |
a800434a | 208 | stats.total_size = read_longint(f); |
f0f7e760 WD |
209 | if (protocol_version >= 29) { |
210 | stats.flist_buildtime = read_longint(f); | |
211 | stats.flist_xfertime = read_longint(f); | |
212 | } | |
e4676bb5 | 213 | } else if (write_batch) { |
b9f592fb WD |
214 | /* The --read-batch process is going to be a client |
215 | * receiver, so we need to give it the stats. */ | |
216 | write_longint(batch_fd, total_read); | |
217 | write_longint(batch_fd, total_written); | |
218 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
219 | if (protocol_version >= 29) { |
220 | write_longint(batch_fd, stats.flist_buildtime); | |
221 | write_longint(batch_fd, stats.flist_xfertime); | |
222 | } | |
a800434a | 223 | } |
e4676bb5 | 224 | } |
a800434a | 225 | |
e4676bb5 WD |
226 | static void output_summary(void) |
227 | { | |
a800434a | 228 | if (do_stats) { |
b64ee91a WD |
229 | rprintf(FCLIENT, "\n"); |
230 | rprintf(FINFO,"Number of files: %d\n", stats.num_files); | |
d9c7edf6 WD |
231 | rprintf(FINFO,"Number of files transferred: %d\n", |
232 | stats.num_transferred_files); | |
60613dc8 WD |
233 | rprintf(FINFO,"Total file size: %s bytes\n", |
234 | human_num(stats.total_size)); | |
235 | rprintf(FINFO,"Total transferred file size: %s bytes\n", | |
236 | human_num(stats.total_transferred_size)); | |
237 | rprintf(FINFO,"Literal data: %s bytes\n", | |
238 | human_num(stats.literal_data)); | |
239 | rprintf(FINFO,"Matched data: %s bytes\n", | |
240 | human_num(stats.matched_data)); | |
1f658d42 | 241 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
242 | if (stats.flist_buildtime) { |
243 | rprintf(FINFO, | |
244 | "File list generation time: %.3f seconds\n", | |
245 | (double)stats.flist_buildtime / 1000); | |
246 | rprintf(FINFO, | |
247 | "File list transfer time: %.3f seconds\n", | |
248 | (double)stats.flist_xfertime / 1000); | |
249 | } | |
60613dc8 WD |
250 | rprintf(FINFO,"Total bytes sent: %s\n", |
251 | human_num(total_written)); | |
252 | rprintf(FINFO,"Total bytes received: %s\n", | |
253 | human_num(total_read)); | |
7a6421fa | 254 | } |
d9c7edf6 | 255 | |
e19452a9 | 256 | if (verbose || do_stats) { |
b64ee91a | 257 | rprintf(FCLIENT, "\n"); |
b9f592fb | 258 | rprintf(FINFO, |
b64ee91a | 259 | "sent %s bytes received %s bytes %s bytes/sec\n", |
60613dc8 WD |
260 | human_num(total_written), human_num(total_read), |
261 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
262 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
263 | human_num(stats.total_size), | |
b9f592fb | 264 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 265 | } |
fc8a6b97 AT |
266 | |
267 | fflush(stdout); | |
268 | fflush(stderr); | |
c627d613 AT |
269 | } |
270 | ||
271 | ||
e5a2b854 MP |
272 | /** |
273 | * If our C library can get malloc statistics, then show them to FINFO | |
274 | **/ | |
275 | static void show_malloc_stats(void) | |
276 | { | |
4f5b0756 | 277 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
278 | struct mallinfo mi; |
279 | ||
280 | mi = mallinfo(); | |
281 | ||
b64ee91a WD |
282 | rprintf(FCLIENT, "\n"); |
283 | rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", | |
f846a9bf WD |
284 | getpid(), am_server ? "server " : "", |
285 | am_daemon ? "daemon " : "", who_am_i()); | |
286 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
287 | (long)mi.arena); | |
288 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
289 | (long)mi.ordblks); | |
290 | rprintf(FINFO, " smblks: %10ld\n", | |
291 | (long)mi.smblks); | |
292 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
293 | (long)mi.hblks); | |
294 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
295 | (long)mi.hblkhd); | |
296 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
297 | (long)mi.arena + mi.hblkhd); | |
298 | rprintf(FINFO, " usmblks: %10ld\n", | |
299 | (long)mi.usmblks); | |
300 | rprintf(FINFO, " fsmblks: %10ld\n", | |
301 | (long)mi.fsmblks); | |
302 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
303 | (long)mi.uordblks); | |
304 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
305 | (long)mi.fordblks); | |
306 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
307 | (long)mi.keepcost); | |
e5a2b854 MP |
308 | #endif /* HAVE_MALLINFO */ |
309 | } | |
310 | ||
311 | ||
0882faa2 | 312 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
313 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
314 | int *f_in, int *f_out) | |
c627d613 | 315 | { |
6c2e5b56 | 316 | int i, argc = 0; |
887e553f | 317 | char *args[MAX_ARGS]; |
19b27a48 | 318 | pid_t ret; |
82f0c63e | 319 | char *dir = NULL; |
bb4aa89c | 320 | int dash_l_set = 0; |
366345fe | 321 | |
088aac85 | 322 | if (!read_batch && !local_server) { |
82f0c63e | 323 | char *t, *f, in_quote = '\0'; |
9af87151 | 324 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 325 | if (!cmd) |
9af87151 | 326 | cmd = rsh_env; |
366345fe AT |
327 | if (!cmd) |
328 | cmd = RSYNC_RSH; | |
329 | cmd = strdup(cmd); | |
d9c7edf6 | 330 | if (!cmd) |
366345fe AT |
331 | goto oom; |
332 | ||
82f0c63e WD |
333 | for (t = f = cmd; *f; f++) { |
334 | if (*f == ' ') | |
335 | continue; | |
e7a392c7 | 336 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 337 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 338 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
339 | exit_cleanup(RERR_SYNTAX); |
340 | } | |
82f0c63e WD |
341 | args[argc++] = t; |
342 | while (*f != ' ' || in_quote) { | |
343 | if (!*f) { | |
344 | if (in_quote) { | |
345 | rprintf(FERROR, | |
346 | "Missing trailing-%c in remote-shell command.\n", | |
347 | in_quote); | |
348 | exit_cleanup(RERR_SYNTAX); | |
349 | } | |
350 | f--; | |
351 | break; | |
352 | } | |
353 | if (*f == '\'' || *f == '"') { | |
354 | if (!in_quote) { | |
355 | in_quote = *f++; | |
356 | continue; | |
357 | } | |
358 | if (*f == in_quote && *++f != in_quote) { | |
359 | in_quote = '\0'; | |
360 | continue; | |
361 | } | |
362 | } | |
363 | *t++ = *f++; | |
364 | } | |
365 | *t++ = '\0'; | |
887e553f | 366 | } |
c627d613 | 367 | |
d9c7edf6 | 368 | /* check to see if we've already been given '-l user' in |
9af87151 | 369 | * the remote-shell command */ |
bb4aa89c WD |
370 | for (i = 0; i < argc-1; i++) { |
371 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
372 | dash_l_set = 1; | |
373 | } | |
374 | ||
4f5b0756 | 375 | #ifdef HAVE_REMSH |
366345fe AT |
376 | /* remsh (on HPUX) takes the arguments the other way around */ |
377 | args[argc++] = machine; | |
bb4aa89c | 378 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
379 | args[argc++] = "-l"; |
380 | args[argc++] = user; | |
381 | } | |
7b8356d0 | 382 | #else |
bb4aa89c | 383 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
384 | args[argc++] = "-l"; |
385 | args[argc++] = user; | |
386 | } | |
387 | args[argc++] = machine; | |
7b8356d0 | 388 | #endif |
c627d613 | 389 | |
366345fe | 390 | args[argc++] = rsync_path; |
c627d613 | 391 | |
9af87151 | 392 | if (blocking_io < 0) { |
90e22f4b WD |
393 | char *cp; |
394 | if ((cp = strrchr(cmd, '/')) != NULL) | |
395 | cp++; | |
396 | else | |
397 | cp = cmd; | |
398 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
399 | blocking_io = 1; | |
66b71163 | 400 | } |
e384bfbd | 401 | |
93689aa5 | 402 | server_options(args,&argc); |
e7a392c7 WD |
403 | |
404 | if (argc >= MAX_ARGS - 2) { | |
405 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
406 | exit_cleanup(RERR_SYNTAX); | |
407 | } | |
366345fe | 408 | } |
c627d613 | 409 | |
366345fe | 410 | args[argc++] = "."; |
76076c4b | 411 | |
d9c7edf6 | 412 | if (!daemon_over_rsh && path && *path) |
366345fe | 413 | args[argc++] = path; |
c627d613 | 414 | |
366345fe | 415 | args[argc] = NULL; |
c627d613 | 416 | |
366345fe | 417 | if (verbose > 3) { |
e7a392c7 | 418 | for (i = 0; i < argc; i++) |
b64ee91a WD |
419 | rprintf(FCLIENT, "cmd[%d]=%s ", i, args[i]); |
420 | rprintf(FCLIENT, "\n"); | |
366345fe AT |
421 | } |
422 | ||
c0d8e84c WD |
423 | if (read_batch) { |
424 | int from_gen_pipe[2]; | |
425 | if (fd_pair(from_gen_pipe) < 0) { | |
426 | rsyserr(FERROR, errno, "pipe"); | |
427 | exit_cleanup(RERR_IPC); | |
428 | } | |
429 | batch_gen_fd = from_gen_pipe[0]; | |
430 | *f_out = from_gen_pipe[1]; | |
431 | *f_in = batch_fd; | |
432 | ret = -1; /* no child pid */ | |
433 | } else if (local_server) { | |
b1df18d7 WD |
434 | /* If the user didn't request --[no-]whole-file, force |
435 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 436 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 437 | whole_file = 1; |
25d34a5c | 438 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 439 | } else |
366345fe | 440 | ret = piped_child(args,f_in,f_out); |
c627d613 | 441 | |
3a69fad0 WD |
442 | if (dir) |
443 | free(dir); | |
82306bf6 | 444 | |
366345fe | 445 | return ret; |
c627d613 | 446 | |
acee11fc | 447 | oom: |
366345fe AT |
448 | out_of_memory("do_cmd"); |
449 | return 0; /* not reached */ | |
c627d613 AT |
450 | } |
451 | ||
eb598fac WD |
452 | /* The receiving side operates in one of two modes: |
453 | * | |
cc8c5057 WD |
454 | * 1. it receives any number of files into a destination directory, |
455 | * placing them according to their names in the file-list. | |
eb598fac WD |
456 | * |
457 | * 2. it receives a single file and saves it using the name in the | |
458 | * destination path instead of its file-list name. This requires a | |
459 | * "local name" for writing out the destination file. | |
460 | * | |
a7d461fc WD |
461 | * So, our task is to figure out what mode/local-name we need. |
462 | * For mode 1, we change into the destination directory and return NULL. | |
463 | * For mode 2, we change into the directory containing the destination | |
464 | * file (if we aren't already there) and return the local-name. */ | |
eb598fac | 465 | static char *get_local_name(struct file_list *flist, char *dest_path) |
c627d613 | 466 | { |
7a6421fa | 467 | STRUCT_STAT st; |
a7d461fc | 468 | int statret; |
eb598fac | 469 | char *cp; |
c627d613 | 470 | |
eb598fac WD |
471 | if (verbose > 2) { |
472 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
473 | flist->count, NS(dest_path)); | |
474 | } | |
1f0610ef | 475 | |
ee8e2b15 | 476 | if (!dest_path || list_only) |
1f0610ef | 477 | return NULL; |
c95da96a | 478 | |
a7d461fc WD |
479 | /* See what currently exists at the destination. */ |
480 | if ((statret = safe_stat(dest_path, &st)) == 0) { | |
481 | /* If the destination is a dir, enter it and use mode 1. */ | |
1ff5450d | 482 | if (S_ISDIR(st.st_mode)) { |
582c1589 WD |
483 | if (sanitize_paths) |
484 | die_on_unsafe_path(dest_path, 0); | |
615a5415 | 485 | if (!push_dir(dest_path, 0)) { |
982e05bb | 486 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 487 | full_fname(dest_path)); |
65417579 | 488 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
489 | } |
490 | return NULL; | |
491 | } | |
582c1589 WD |
492 | if (sanitize_paths && S_ISLNK(st.st_mode)) |
493 | die_on_unsafe_path(dest_path, 0); | |
1ff5450d | 494 | if (flist->count > 1) { |
eb598fac WD |
495 | rprintf(FERROR, |
496 | "ERROR: destination must be a directory when" | |
497 | " copying more than 1 file\n"); | |
65417579 | 498 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 499 | } |
44c26bf2 WD |
500 | /* Caution: flist->count could be 0! */ |
501 | if (flist->count == 1 && S_ISDIR(flist->files[0]->mode)) { | |
502 | rprintf(FERROR, | |
503 | "ERROR: cannot overwrite non-directory" | |
504 | " with a directory\n"); | |
505 | exit_cleanup(RERR_FILESELECT); | |
506 | } | |
cc8c5057 | 507 | } else if (errno != ENOENT) { |
a7d461fc WD |
508 | /* If we don't know what's at the destination, fail. */ |
509 | rsyserr(FERROR, errno, "ERROR: cannot stat destination %s", | |
cc8c5057 WD |
510 | full_fname(dest_path)); |
511 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
512 | } |
513 | ||
eb598fac WD |
514 | cp = strrchr(dest_path, '/'); |
515 | ||
a7d461fc WD |
516 | /* If we need a destination directory because the transfer is not |
517 | * of a single non-directory or the user has requested one via a | |
518 | * destination path ending in a slash, create one and use mode 1. */ | |
eb598fac WD |
519 | if (flist->count > 1 || (cp && !cp[1])) { |
520 | /* Lop off the final slash (if any). */ | |
521 | if (cp && !cp[1]) | |
522 | *cp = '\0'; | |
523 | ||
a7d461fc WD |
524 | if (statret == 0) { |
525 | rprintf(FERROR, | |
526 | "ERROR: destination path is not a directory\n"); | |
527 | exit_cleanup(RERR_SYNTAX); | |
528 | } | |
529 | ||
05278935 | 530 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
531 | rsyserr(FERROR, errno, "mkdir %s failed", |
532 | full_fname(dest_path)); | |
533 | exit_cleanup(RERR_FILEIO); | |
534 | } | |
1ff5450d | 535 | |
2a94207a WD |
536 | new_root_dir = 1; |
537 | ||
eb598fac WD |
538 | if (verbose) |
539 | rprintf(FINFO, "created directory %s\n", dest_path); | |
540 | ||
541 | if (dry_run) { | |
615a5415 | 542 | /* Indicate that dest dir doesn't really exist. */ |
eb598fac | 543 | dry_run++; |
eb598fac WD |
544 | } |
545 | ||
582c1589 WD |
546 | if (sanitize_paths) |
547 | die_on_unsafe_path(dest_path, 0); | |
615a5415 | 548 | if (!push_dir(dest_path, dry_run > 1)) { |
eb598fac WD |
549 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
550 | full_fname(dest_path)); | |
551 | exit_cleanup(RERR_FILESELECT); | |
552 | } | |
e5a96f0f | 553 | |
e5a96f0f | 554 | return NULL; |
1ff5450d AT |
555 | } |
556 | ||
eb598fac WD |
557 | /* Otherwise, we are writing a single file, possibly on top of an |
558 | * existing non-directory. Change to the item's parent directory | |
559 | * (if it has a path component), return the basename of the | |
560 | * destination file as the local name, and use mode 2. */ | |
561 | if (!cp) | |
562 | return dest_path; | |
563 | ||
564 | if (cp == dest_path) | |
565 | dest_path = "/"; | |
566 | ||
567 | *cp = '\0'; | |
582c1589 WD |
568 | if (sanitize_paths) |
569 | die_on_unsafe_path(dest_path, 0); | |
615a5415 | 570 | if (!push_dir(dest_path, 0)) { |
eb598fac WD |
571 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
572 | full_fname(dest_path)); | |
65417579 | 573 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 574 | } |
eb598fac | 575 | *cp = '/'; |
1ff5450d | 576 | |
eb598fac | 577 | return cp + 1; |
c627d613 AT |
578 | } |
579 | ||
615a5415 WD |
580 | /* Call this if the destination dir (which is assumed to be in curr_dir) |
581 | * does not yet exist and we can't create it due to being in dry-run | |
582 | * mode. We'll fix dirs that can be relative to the non-existent dir. */ | |
583 | static void fix_basis_dirs(void) | |
584 | { | |
ddcba3f0 | 585 | char **dir, *new, *slash; |
615a5415 WD |
586 | int len; |
587 | ||
ddcba3f0 WD |
588 | if (dry_run <= 1) |
589 | return; | |
590 | ||
591 | slash = strrchr(curr_dir, '/'); | |
592 | ||
615a5415 WD |
593 | for (dir = basis_dir; *dir; dir++) { |
594 | if (**dir == '/') | |
595 | continue; | |
596 | len = curr_dir_len + 1 + strlen(*dir) + 1; | |
597 | if (!(new = new_array(char, len))) | |
598 | out_of_memory("fix_basis_dirs"); | |
ddcba3f0 WD |
599 | if (slash && strncmp(*dir, "../", 3) == 0) { |
600 | /* We want to remove only one leading "../" prefix for | |
601 | * the directory we couldn't create in dry-run mode: | |
602 | * this ensures that any other ".." references get | |
603 | * evaluated the same as they would for a live copy. */ | |
604 | *slash = '\0'; | |
605 | pathjoin(new, len, curr_dir, *dir + 3); | |
606 | *slash = '/'; | |
607 | } else | |
608 | pathjoin(new, len, curr_dir, *dir); | |
615a5415 WD |
609 | *dir = new; |
610 | } | |
611 | } | |
c627d613 | 612 | |
1a8e5c97 | 613 | /* This is only called by the sender. */ |
3485ae83 | 614 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 615 | { |
1a8e5c97 WD |
616 | int i; |
617 | ||
618 | if (protocol_version < 29) | |
619 | i = read_int(f_in); | |
620 | else { | |
3485ae83 | 621 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
622 | && read_shortint(f_in) == ITEM_IS_NEW) { |
623 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 624 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
625 | write_shortint(f_out, ITEM_IS_NEW); |
626 | } | |
4e0fcd85 WD |
627 | } |
628 | ||
1a8e5c97 | 629 | if (i != -1) { |
c7791b8c WD |
630 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
631 | i, who_am_i()); | |
1a8e5c97 | 632 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
633 | } |
634 | } | |
635 | ||
636 | ||
eb598fac | 637 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 638 | { |
7a6421fa AT |
639 | struct file_list *flist; |
640 | char *dir = argv[0]; | |
c627d613 | 641 | |
45e08edb WD |
642 | if (verbose > 2) { |
643 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
644 | (long)getpid()); | |
645 | } | |
d9c7edf6 | 646 | |
2adbcdc7 | 647 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
648 | rprintf(FERROR, "ERROR: module is write only\n"); |
649 | exit_cleanup(RERR_SYNTAX); | |
650 | return; | |
651 | } | |
47c11975 | 652 | if (am_daemon && lp_read_only(module_id) && remove_source_files) { |
bf26aa22 | 653 | rprintf(FERROR, |
044ccbaa | 654 | "ERROR: --remove-%s-files cannot be used with a read-only module\n", |
47c11975 | 655 | remove_source_files == 1 ? "source" : "sent"); |
bf26aa22 WD |
656 | exit_cleanup(RERR_SYNTAX); |
657 | return; | |
658 | } | |
7a92ded3 | 659 | |
582c1589 WD |
660 | if (!relative_paths) { |
661 | if (sanitize_paths) | |
662 | die_on_unsafe_path(dir, 0); | |
615a5415 | 663 | if (!push_dir(dir, 0)) { |
582c1589 WD |
664 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
665 | full_fname(dir)); | |
666 | exit_cleanup(RERR_FILESELECT); | |
667 | } | |
7a6421fa AT |
668 | } |
669 | argc--; | |
670 | argv++; | |
d9c7edf6 | 671 | |
48a1ff0d | 672 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 673 | argc = 1; |
7a6421fa AT |
674 | argv--; |
675 | argv[0] = "."; | |
676 | } | |
d9c7edf6 | 677 | |
7a6421fa | 678 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
679 | if (!flist || flist->count == 0) { |
680 | exit_cleanup(0); | |
681 | } | |
a00628b3 | 682 | the_file_list = flist; |
8d9dc9f9 | 683 | |
da3478b2 WD |
684 | io_start_buffering_in(); |
685 | io_start_buffering_out(); | |
686 | ||
7a6421fa | 687 | send_files(flist,f_out,f_in); |
f1e3656e | 688 | io_flush(FULL_FLUSH); |
33c4b445 | 689 | handle_stats(f_out); |
4e0fcd85 | 690 | if (protocol_version >= 24) |
3485ae83 | 691 | read_final_goodbye(f_in, f_out); |
f1e3656e | 692 | io_flush(FULL_FLUSH); |
7a6421fa | 693 | exit_cleanup(0); |
c627d613 AT |
694 | } |
695 | ||
696 | ||
dc5ddbcc AT |
697 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
698 | { | |
d186eb1a | 699 | int pid; |
84e6d6fd | 700 | int exit_code = 0; |
c70e07d9 | 701 | int error_pipe[2]; |
dc5ddbcc | 702 | |
bb6721dc WD |
703 | /* The receiving side mustn't obey this, or an existing symlink that |
704 | * points to an identical file won't be replaced by the referent. */ | |
a695b379 | 705 | copy_links = copy_dirlinks = 0; |
bb6721dc | 706 | |
d186eb1a | 707 | if (preserve_hard_links) |
3485ae83 | 708 | init_hard_links(); |
dc5ddbcc | 709 | |
c70e07d9 | 710 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 711 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 712 | exit_cleanup(RERR_IPC); |
554e0a8d | 713 | } |
d9c7edf6 | 714 | |
f1e3656e | 715 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 716 | |
ba449e44 | 717 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 718 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
719 | exit_cleanup(RERR_IPC); |
720 | } | |
721 | ||
722 | if (pid == 0) { | |
554e0a8d | 723 | close(error_pipe[0]); |
3a69fad0 WD |
724 | if (f_in != f_out) |
725 | close(f_out); | |
e08c9610 | 726 | |
554e0a8d | 727 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 728 | close_multiplexing_out(); |
554e0a8d AT |
729 | |
730 | /* set place to send errors */ | |
f1e3656e | 731 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 732 | |
c70e07d9 | 733 | recv_files(f_in, flist, local_name); |
f1e3656e | 734 | io_flush(FULL_FLUSH); |
33c4b445 | 735 | handle_stats(f_in); |
e08c9610 | 736 | |
f1e3656e WD |
737 | send_msg(MSG_DONE, "", 0); |
738 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 739 | |
40df65fd WD |
740 | /* Handle any keep-alive packets from the post-processing work |
741 | * that the generator does. */ | |
4e0fcd85 | 742 | if (protocol_version >= 29) { |
051182cb | 743 | kluge_around_eof = -1; |
1a8e5c97 WD |
744 | |
745 | /* This should only get stopped via a USR2 signal. */ | |
746 | while (read_int(f_in) == flist->count | |
747 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
748 | ||
3485ae83 WD |
749 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
750 | who_am_i()); | |
1a8e5c97 | 751 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
752 | } |
753 | ||
9e0582f9 WD |
754 | /* Finally, we go to sleep until our parent kills us with a |
755 | * USR2 signal. We sleep for a short time, as on some OSes | |
756 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
757 | while (1) |
758 | msleep(20); | |
d186eb1a | 759 | } |
dc5ddbcc | 760 | |
b695f242 | 761 | am_generator = 1; |
9eeb3b9c | 762 | close_multiplexing_in(); |
e8a96e27 | 763 | if (write_batch && !am_server) |
b9f592fb | 764 | stop_write_batch(); |
b695f242 | 765 | |
554e0a8d | 766 | close(error_pipe[1]); |
3a69fad0 WD |
767 | if (f_in != f_out) |
768 | close(f_in); | |
e1b3d5c4 | 769 | |
da3478b2 | 770 | io_start_buffering_out(); |
b3e10ed7 | 771 | |
f1e3656e | 772 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 773 | |
c70e07d9 | 774 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 775 | |
33c4b445 | 776 | handle_stats(-1); |
f1e3656e | 777 | io_flush(FULL_FLUSH); |
d04e9c51 | 778 | if (protocol_version >= 24) { |
8ada7518 AT |
779 | /* send a final goodbye message */ |
780 | write_int(f_out, -1); | |
781 | } | |
f1e3656e | 782 | io_flush(FULL_FLUSH); |
8ada7518 | 783 | |
f1e3656e | 784 | set_msg_fd_in(-1); |
089a2435 | 785 | kill(pid, SIGUSR2); |
84e6d6fd WD |
786 | wait_process_with_flush(pid, &exit_code); |
787 | return exit_code; | |
dc5ddbcc AT |
788 | } |
789 | ||
c627d613 | 790 | |
9486289c | 791 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 792 | { |
84e6d6fd | 793 | int exit_code; |
7a6421fa | 794 | struct file_list *flist; |
6c2e5b56 | 795 | char *local_name = NULL; |
7a6421fa | 796 | char *dir = NULL; |
07bff66f WD |
797 | int save_verbose = verbose; |
798 | ||
799 | if (filesfrom_fd >= 0) { | |
800 | /* We can't mix messages with files-from data on the socket, | |
801 | * so temporarily turn off verbose messages. */ | |
802 | verbose = 0; | |
803 | } | |
f0fca04e | 804 | |
45e08edb WD |
805 | if (verbose > 2) { |
806 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
807 | argc, (long)getpid()); | |
808 | } | |
09b7f5db | 809 | |
2adbcdc7 | 810 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
811 | rprintf(FERROR,"ERROR: module is read only\n"); |
812 | exit_cleanup(RERR_SYNTAX); | |
813 | return; | |
814 | } | |
815 | ||
7a6421fa AT |
816 | if (argc > 0) { |
817 | dir = argv[0]; | |
818 | argc--; | |
819 | argv++; | |
615a5415 | 820 | if (!am_daemon && !push_dir(dir, 0)) { |
982e05bb WD |
821 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
822 | full_fname(dir)); | |
65417579 | 823 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 824 | } |
7a6421fa | 825 | } |
c627d613 | 826 | |
da3478b2 | 827 | io_start_buffering_in(); |
57dee64e | 828 | recv_filter_list(f_in); |
c627d613 | 829 | |
7c2a9e76 | 830 | if (filesfrom_fd >= 0) { |
07bff66f WD |
831 | /* We need to send the files-from names to the sender at the |
832 | * same time that we receive the file-list from them, so we | |
833 | * need the IO routines to automatically write out the names | |
834 | * onto our f_out socket as we read the file-list. This | |
835 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
836 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
837 | filesfrom_fd = -1; | |
838 | } | |
839 | ||
b9f592fb | 840 | flist = recv_file_list(f_in); |
07bff66f | 841 | verbose = save_verbose; |
4c36a13e AT |
842 | if (!flist) { |
843 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 844 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 845 | } |
a00628b3 | 846 | the_file_list = flist; |
d9c7edf6 | 847 | |
29fad7a3 | 848 | if (argc > 0) |
7a6421fa | 849 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 850 | |
7c58c991 WD |
851 | /* Now that we know what our destination directory turned out to be, |
852 | * we can sanitize the --link-/copy-/compare-dest args correctly. */ | |
853 | if (sanitize_paths) { | |
7c58c991 | 854 | char **dir; |
c2c8db91 | 855 | for (dir = basis_dir; *dir; dir++) { |
c2a2147a | 856 | *dir = sanitize_path(NULL, *dir, NULL, curr_dir_depth, NULL); |
c2c8db91 WD |
857 | die_on_unsafe_path(*dir, 0); |
858 | } | |
859 | if (partial_dir) { | |
860 | partial_dir = sanitize_path(NULL, partial_dir, NULL, curr_dir_depth, NULL); | |
861 | /* A relative path gets this checked at every dir change. */ | |
862 | if (*partial_dir == '/') | |
863 | die_on_unsafe_path(partial_dir, 0); | |
864 | } | |
865 | } | |
ddcba3f0 | 866 | fix_basis_dirs(); |
615a5415 | 867 | |
c2c8db91 WD |
868 | if (server_filter_list.head) { |
869 | char **dir; | |
870 | struct filter_list_struct *elp = &server_filter_list; | |
871 | ||
872 | for (dir = basis_dir; *dir; dir++) { | |
873 | if (check_filter(elp, *dir, 1) < 0) | |
874 | goto options_rejected; | |
875 | } | |
876 | if (partial_dir && *partial_dir == '/' | |
877 | && check_filter(elp, partial_dir, 1) < 0) { | |
878 | options_rejected: | |
879 | rprintf(FERROR, | |
880 | "Your options have been rejected by the server.\n"); | |
881 | exit_cleanup(RERR_SYNTAX); | |
882 | } | |
7c58c991 WD |
883 | } |
884 | ||
84e6d6fd WD |
885 | exit_code = do_recv(f_in,f_out,flist,local_name); |
886 | exit_cleanup(exit_code); | |
c627d613 AT |
887 | } |
888 | ||
889 | ||
734a94a2 | 890 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
891 | { |
892 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 893 | return 0; |
25d34a5c MP |
894 | } |
895 | ||
896 | ||
9486289c | 897 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 898 | { |
f0359dd0 AT |
899 | set_nonblocking(f_in); |
900 | set_nonblocking(f_out); | |
901 | ||
da3478b2 WD |
902 | io_set_sock_fds(f_in, f_out); |
903 | setup_protocol(f_out, f_in); | |
595251de | 904 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
905 | setup_iconv(); |
906 | #endif | |
da3478b2 | 907 | |
d04e9c51 | 908 | if (protocol_version >= 23) |
da3478b2 | 909 | io_start_multiplex_out(); |
7a6421fa | 910 | |
7a6421fa | 911 | if (am_sender) { |
83926d3c | 912 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
913 | if (need_messages_from_generator) |
914 | io_start_multiplex_in(); | |
9b3318b0 | 915 | |
7842418b | 916 | recv_filter_list(f_in); |
7a6421fa AT |
917 | do_server_sender(f_in, f_out, argc, argv); |
918 | } else { | |
919 | do_server_recv(f_in, f_out, argc, argv); | |
920 | } | |
921 | exit_cleanup(0); | |
366345fe AT |
922 | } |
923 | ||
0ba48136 MP |
924 | |
925 | /* | |
926 | * This is called once the connection has been negotiated. It is used | |
927 | * for rsyncd, remote-shell, and local connections. | |
928 | */ | |
19b27a48 | 929 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 930 | { |
088aac85 | 931 | struct file_list *flist = NULL; |
84e6d6fd | 932 | int exit_code = 0, exit_code2 = 0; |
9486289c | 933 | char *local_name = NULL; |
19b27a48 AT |
934 | |
935 | cleanup_child_pid = pid; | |
67a28eb2 | 936 | if (!read_batch) { |
b9f592fb WD |
937 | set_nonblocking(f_in); |
938 | set_nonblocking(f_out); | |
939 | } | |
f0359dd0 | 940 | |
da3478b2 | 941 | io_set_sock_fds(f_in, f_out); |
6d7b6081 | 942 | setup_protocol(f_out,f_in); |
595251de | 943 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
944 | setup_iconv(); |
945 | #endif | |
6d7b6081 | 946 | |
b9f592fb | 947 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 948 | io_start_multiplex_in(); |
d9c7edf6 | 949 | |
18882701 WD |
950 | /* We set our stderr file handle to blocking because ssh might have |
951 | * set it to non-blocking. This can be particularly troublesome if | |
952 | * stderr is a clone of stdout, because ssh would have set our stdout | |
953 | * to non-blocking at the same time (which can easily cause us to lose | |
954 | * output from our print statements). This kluge shouldn't cause ssh | |
955 | * any problems for how we use it. Note also that we delayed setting | |
956 | * this until after the above protocol setup so that we know for sure | |
957 | * that ssh is done twiddling its file descriptors. */ | |
958 | set_blocking(STDERR_FILENO); | |
959 | ||
9486289c | 960 | if (am_sender) { |
83926d3c | 961 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 962 | io_start_buffering_out(); |
860236bf | 963 | if (!filesfrom_host) |
a0a33ee5 | 964 | set_msg_fd_in(f_in); |
57dee64e | 965 | send_filter_list(f_out); |
860236bf | 966 | if (filesfrom_host) |
7c2a9e76 | 967 | filesfrom_fd = f_in; |
b9f592fb | 968 | |
e8a96e27 | 969 | if (write_batch && !am_server) |
b9f592fb | 970 | start_write_batch(f_out); |
a00628b3 | 971 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 972 | set_msg_fd_in(-1); |
d9c7edf6 | 973 | if (verbose > 3) |
9486289c | 974 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 975 | the_file_list = flist; |
e1b3d5c4 | 976 | |
f1e3656e | 977 | io_flush(NORMAL_FLUSH); |
9486289c | 978 | send_files(flist,f_out,f_in); |
f1e3656e | 979 | io_flush(FULL_FLUSH); |
33c4b445 | 980 | handle_stats(-1); |
4e0fcd85 | 981 | if (protocol_version >= 24) |
3485ae83 | 982 | read_final_goodbye(f_in, f_out); |
9486289c AT |
983 | if (pid != -1) { |
984 | if (verbose > 3) | |
08a740ff | 985 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 986 | io_flush(FULL_FLUSH); |
84e6d6fd | 987 | wait_process_with_flush(pid, &exit_code); |
9486289c | 988 | } |
33c4b445 | 989 | output_summary(); |
c87ae64a | 990 | io_flush(FULL_FLUSH); |
84e6d6fd | 991 | exit_cleanup(exit_code); |
9486289c | 992 | } |
f7632fc6 | 993 | |
bf26aa22 WD |
994 | if (need_messages_from_generator && !read_batch) |
995 | io_start_multiplex_out(); | |
996 | ||
48a1ff0d WD |
997 | if (argc == 0) |
998 | list_only |= 1; | |
d9c7edf6 | 999 | |
57dee64e | 1000 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 1001 | |
7c2a9e76 WD |
1002 | if (filesfrom_fd >= 0) { |
1003 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
1004 | filesfrom_fd = -1; | |
1005 | } | |
1006 | ||
e8a96e27 | 1007 | if (write_batch && !am_server) |
b9f592fb | 1008 | start_write_batch(f_in); |
9486289c | 1009 | flist = recv_file_list(f_in); |
a00628b3 | 1010 | the_file_list = flist; |
d9c7edf6 | 1011 | |
9d19f8a5 WD |
1012 | if (flist && flist->count > 0) { |
1013 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 1014 | |
ddcba3f0 | 1015 | fix_basis_dirs(); |
615a5415 | 1016 | |
84e6d6fd | 1017 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
1018 | } else { |
1019 | handle_stats(-1); | |
1020 | output_summary(); | |
1021 | } | |
d9c7edf6 | 1022 | |
9486289c | 1023 | if (pid != -1) { |
8d9dc9f9 | 1024 | if (verbose > 3) |
08a740ff | 1025 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 1026 | io_flush(FULL_FLUSH); |
84e6d6fd | 1027 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1028 | } |
d9c7edf6 | 1029 | |
84e6d6fd | 1030 | return MAX(exit_code, exit_code2); |
9486289c AT |
1031 | } |
1032 | ||
7169bb4a MP |
1033 | static int copy_argv (char *argv[]) |
1034 | { | |
1035 | int i; | |
1036 | ||
1037 | for (i = 0; argv[i]; i++) { | |
1038 | if (!(argv[i] = strdup(argv[i]))) { | |
1039 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
1040 | __FILE__, __LINE__); | |
1041 | return RERR_MALLOC; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | ||
c1a04ecb | 1049 | /** |
0ba48136 MP |
1050 | * Start a client for either type of remote connection. Work out |
1051 | * whether the arguments request a remote shell or rsyncd connection, | |
1052 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
1053 | * |
1054 | * Calls either start_socket_client (for sockets) or do_cmd and | |
1055 | * client_run (for ssh). | |
c1a04ecb | 1056 | **/ |
fc8a6b97 | 1057 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
1058 | { |
1059 | char *p; | |
1060 | char *shell_machine = NULL; | |
1061 | char *shell_path = NULL; | |
1062 | char *shell_user = NULL; | |
19b27a48 AT |
1063 | int ret; |
1064 | pid_t pid; | |
5d6bcd44 | 1065 | int f_in,f_out; |
7169bb4a MP |
1066 | int rc; |
1067 | ||
1068 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 1069 | * command line. */ |
75aeac44 | 1070 | if ((rc = copy_argv(argv))) |
7169bb4a | 1071 | return rc; |
5d6bcd44 | 1072 | |
d16c245f | 1073 | if (!read_batch) { /* for read_batch, NO source is specified */ |
860236bf WD |
1074 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
1075 | if (shell_path) { /* source is remote */ | |
9425918d WD |
1076 | char *dummy1; |
1077 | int dummy2; | |
ee8e2b15 WD |
1078 | if (--argc |
1079 | && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { | |
9425918d WD |
1080 | rprintf(FERROR, |
1081 | "The source and destination cannot both be remote.\n"); | |
1082 | exit_cleanup(RERR_SYNTAX); | |
1083 | } | |
42ccb4c0 | 1084 | argv++; |
860236bf WD |
1085 | if (filesfrom_host && *filesfrom_host |
1086 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1087 | rprintf(FERROR, |
50b31539 | 1088 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1089 | exit_cleanup(RERR_SYNTAX); |
1090 | } | |
860236bf | 1091 | if (rsync_port) { |
d9c7edf6 | 1092 | if (!shell_cmd) { |
860236bf WD |
1093 | return start_socket_client(shell_machine, |
1094 | shell_path, | |
42ccb4c0 | 1095 | argc, argv); |
d9c7edf6 | 1096 | } |
d9c7edf6 | 1097 | daemon_over_rsh = 1; |
75aeac44 | 1098 | } |
3591c066 | 1099 | |
42ccb4c0 WD |
1100 | am_sender = 0; |
1101 | } else { /* source is local, check dest arg */ | |
1102 | am_sender = 1; | |
1103 | ||
ee8e2b15 WD |
1104 | if (argc > 1) |
1105 | p = argv[--argc]; | |
1106 | else { | |
1107 | p = "."; | |
1108 | list_only = 1; | |
d9c7edf6 | 1109 | } |
a125c82a | 1110 | |
ee8e2b15 | 1111 | shell_path = check_for_hostspec(p, &shell_machine, &rsync_port); |
860236bf WD |
1112 | if (shell_path && filesfrom_host && *filesfrom_host |
1113 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1114 | rprintf(FERROR, |
50b31539 | 1115 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1116 | exit_cleanup(RERR_SYNTAX); |
1117 | } | |
860236bf | 1118 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1119 | local_server = 1; |
860236bf | 1120 | if (filesfrom_host) { |
7c2a9e76 | 1121 | rprintf(FERROR, |
50b31539 | 1122 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1123 | exit_cleanup(RERR_SYNTAX); |
1124 | } | |
860236bf | 1125 | shell_machine = NULL; |
ee8e2b15 | 1126 | shell_path = p; |
860236bf | 1127 | } else if (rsync_port) { |
d9c7edf6 | 1128 | if (!shell_cmd) { |
860236bf WD |
1129 | return start_socket_client(shell_machine, |
1130 | shell_path, | |
42ccb4c0 | 1131 | argc, argv); |
d9c7edf6 | 1132 | } |
d9c7edf6 | 1133 | daemon_over_rsh = 1; |
a125c82a | 1134 | } |
5d6bcd44 | 1135 | } |
d16c245f | 1136 | } else { /* read_batch */ |
d9c7edf6 WD |
1137 | local_server = 1; |
1138 | shell_path = argv[argc-1]; | |
860236bf | 1139 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1140 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1141 | exit_cleanup(RERR_SYNTAX); | |
1142 | } | |
6902ed17 MP |
1143 | } |
1144 | ||
5d6bcd44 | 1145 | if (shell_machine) { |
6fc048f4 | 1146 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1147 | if (p) { |
1148 | *p = 0; | |
1149 | shell_user = shell_machine; | |
1150 | shell_machine = p+1; | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | if (verbose > 3) { | |
9486289c | 1155 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1156 | shell_cmd ? shell_cmd : "", |
1157 | shell_machine ? shell_machine : "", | |
1158 | shell_user ? shell_user : "", | |
1159 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1160 | } |
d9c7edf6 | 1161 | |
d16c245f | 1162 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1163 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1164 | usage(FERROR); |
65417579 | 1165 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1166 | } |
27e3e9c9 | 1167 | |
d16c245f | 1168 | /* ... or no dest at all */ |
48a1ff0d WD |
1169 | if (!am_sender && argc == 0) |
1170 | list_only |= 1; | |
d9c7edf6 | 1171 | |
75aeac44 WD |
1172 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1173 | &f_in,&f_out); | |
1174 | ||
1175 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1176 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1177 | if (daemon_over_rsh) { |
1178 | int tmpret; | |
1179 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1180 | f_in, f_out, argc); | |
1181 | if (tmpret < 0) | |
1182 | return tmpret; | |
1183 | } | |
1184 | ||
fc8a6b97 AT |
1185 | ret = client_run(f_in, f_out, pid, argc, argv); |
1186 | ||
1187 | fflush(stdout); | |
1188 | fflush(stderr); | |
1189 | ||
1190 | return ret; | |
5d6bcd44 AT |
1191 | } |
1192 | ||
366345fe | 1193 | |
067669da WD |
1194 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1195 | { | |
6bf32edb | 1196 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1197 | } |
1198 | ||
067669da WD |
1199 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1200 | { | |
33c4b445 WD |
1201 | if (!am_server) |
1202 | output_summary(); | |
40df65fd | 1203 | close_all(); |
33c4b445 WD |
1204 | if (log_got_error) |
1205 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1206 | _exit(0); |
1207 | } | |
1208 | ||
6d59ac19 | 1209 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1210 | { |
029c1713 | 1211 | #ifdef WNOHANG |
ee7118a8 DD |
1212 | int cnt, status; |
1213 | pid_t pid; | |
1214 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1215 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1216 | * out we're instead saving the child exit statuses for later use. |
1217 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1218 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1219 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1220 | /* save the child's exit status */ |
1221 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1222 | if (pid_stat_table[cnt].pid == 0) { | |
1223 | pid_stat_table[cnt].pid = pid; | |
1224 | pid_stat_table[cnt].status = status; | |
1225 | break; | |
1226 | } | |
1227 | } | |
ee7118a8 | 1228 | } |
029c1713 | 1229 | #endif |
8261af74 | 1230 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1231 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1232 | #endif |
19b27a48 AT |
1233 | } |
1234 | ||
c0531332 MP |
1235 | |
1236 | /** | |
1237 | * This routine catches signals and tries to send them to gdb. | |
1238 | * | |
1239 | * Because it's called from inside a signal handler it ought not to | |
1240 | * use too many library routines. | |
1241 | * | |
1242 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1243 | * debugging without easy access to X. Perhaps use an environment | |
1244 | * variable, or just call a script? | |
1245 | * | |
1246 | * @todo The /proc/ magic probably only works on Linux (and | |
1247 | * Solaris?) Can we be more portable? | |
1248 | **/ | |
1249 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1250 | const char *get_panic_action(void) |
1251 | { | |
1252 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1253 | ||
1254 | if (cmd_fmt) | |
1255 | return cmd_fmt; | |
1256 | else | |
1257 | return "xterm -display :0 -T Panic -n Panic " | |
1258 | "-e gdb /proc/%d/exe %d"; | |
1259 | } | |
1260 | ||
1261 | ||
9fb3f7a9 MP |
1262 | /** |
1263 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1264 | * | |
1265 | * This signal handler is only installed if we were configured with | |
1266 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1267 | * should just look at the environment variable, but I'm a bit leery | |
1268 | * of a signal sending us into a busy loop. | |
1269 | **/ | |
067669da | 1270 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1271 | { |
1272 | char cmd_buf[300]; | |
1273 | int ret; | |
4fdc39dd MP |
1274 | |
1275 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1276 | getpid(), getpid()); |
1277 | ||
1278 | /* Unless we failed to execute gdb, we allow the process to | |
1279 | * continue. I'm not sure if that's right. */ | |
1280 | ret = system(cmd_buf); | |
1281 | if (ret) | |
1282 | _exit(ret); | |
1283 | } | |
1284 | #endif | |
1285 | ||
1286 | ||
5d6bcd44 | 1287 | int main(int argc,char *argv[]) |
d9c7edf6 | 1288 | { |
ff81e809 | 1289 | int ret; |
66a9dc96 WD |
1290 | int orig_argc = argc; |
1291 | char **orig_argv = argv; | |
8261af74 WD |
1292 | #ifdef HAVE_SIGACTION |
1293 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1294 | sigset_t sigmask; |
5d6bcd44 | 1295 | |
60ee01f5 | 1296 | sigemptyset(&sigmask); |
8261af74 | 1297 | # endif |
60ee01f5 WD |
1298 | sigact.sa_flags = SA_NOCLDSTOP; |
1299 | #endif | |
1300 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1301 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1302 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1303 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1304 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1305 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1306 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1307 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1308 | #endif | |
5d6bcd44 | 1309 | |
7a6421fa | 1310 | starttime = time(NULL); |
6fe05820 | 1311 | am_root = (MY_UID() == 0); |
c627d613 | 1312 | |
a800434a AT |
1313 | memset(&stats, 0, sizeof(stats)); |
1314 | ||
df5e03da AT |
1315 | if (argc < 2) { |
1316 | usage(FERROR); | |
65417579 | 1317 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1318 | } |
1319 | ||
7a6421fa | 1320 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1321 | * carried across */ |
05278935 | 1322 | orig_umask = umask(0); |
5d6bcd44 | 1323 | |
eb598fac WD |
1324 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1325 | setlocale(LC_CTYPE, ""); | |
1326 | #endif | |
1327 | ||
50135767 | 1328 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1329 | /* FIXME: We ought to call the same error-handling |
1330 | * code here, rather than relying on getopt. */ | |
50135767 | 1331 | option_error(); |
65417579 | 1332 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1333 | } |
5d6bcd44 | 1334 | |
60ee01f5 WD |
1335 | SIGACTMASK(SIGINT, sig_int); |
1336 | SIGACTMASK(SIGHUP, sig_int); | |
1337 | SIGACTMASK(SIGTERM, sig_int); | |
1338 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1339 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1340 | #endif | |
6b83141d | 1341 | |
34758d5c MP |
1342 | /* Ignore SIGPIPE; we consistently check error codes and will |
1343 | * see the EPIPE. */ | |
60ee01f5 | 1344 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1345 | #ifdef SIGXFSZ |
1346 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1347 | #endif | |
34758d5c | 1348 | |
c226b7c2 | 1349 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1350 | * (implemented by forking "pwd" and reading its output) doesn't |
1351 | * work when there are other child processes. Also, on all systems | |
1352 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
615a5415 | 1353 | push_dir(NULL, 0); |
c226b7c2 | 1354 | |
44e9e221 WD |
1355 | init_flist(); |
1356 | ||
e8a96e27 | 1357 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1358 | if (write_batch) |
66a9dc96 | 1359 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1360 | |
dbbab0c4 WD |
1361 | if (read_batch && strcmp(batch_name, "-") == 0) |
1362 | batch_fd = STDIN_FILENO; | |
1363 | else { | |
1364 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1365 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1366 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1367 | } |
b9f592fb WD |
1368 | if (batch_fd < 0) { |
1369 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1370 | full_fname(batch_name)); |
b9f592fb WD |
1371 | exit_cleanup(RERR_FILEIO); |
1372 | } | |
9459290a WD |
1373 | if (read_batch) |
1374 | read_stream_flags(batch_fd); | |
6902ed17 | 1375 | } |
e8a96e27 WD |
1376 | if (write_batch < 0) |
1377 | dry_run = 1; | |
6902ed17 | 1378 | |
75aeac44 | 1379 | if (am_daemon && !am_server) |
7a6421fa | 1380 | return daemon_main(); |
f0fca04e | 1381 | |
08ac228f AT |
1382 | if (argc < 1) { |
1383 | usage(FERROR); | |
65417579 | 1384 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1385 | } |
1386 | ||
7a6421fa | 1387 | if (am_server) { |
f0359dd0 AT |
1388 | set_nonblocking(STDIN_FILENO); |
1389 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1390 | if (am_daemon) |
1391 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1392 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1393 | } | |
c627d613 | 1394 | |
ff81e809 | 1395 | ret = start_client(argc, argv); |
d9c7edf6 | 1396 | if (ret == -1) |
9098bbf3 | 1397 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1398 | else |
9098bbf3 MP |
1399 | exit_cleanup(ret); |
1400 | ||
0f5a04e3 | 1401 | return ret; |
c627d613 | 1402 | } |