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)); | |
eb0144d7 WD |
241 | rprintf(FINFO,"File list size: %s\n", |
242 | human_num(stats.flist_size)); | |
f0f7e760 WD |
243 | if (stats.flist_buildtime) { |
244 | rprintf(FINFO, | |
245 | "File list generation time: %.3f seconds\n", | |
246 | (double)stats.flist_buildtime / 1000); | |
247 | rprintf(FINFO, | |
248 | "File list transfer time: %.3f seconds\n", | |
249 | (double)stats.flist_xfertime / 1000); | |
250 | } | |
60613dc8 WD |
251 | rprintf(FINFO,"Total bytes sent: %s\n", |
252 | human_num(total_written)); | |
253 | rprintf(FINFO,"Total bytes received: %s\n", | |
254 | human_num(total_read)); | |
7a6421fa | 255 | } |
d9c7edf6 | 256 | |
e19452a9 | 257 | if (verbose || do_stats) { |
b64ee91a | 258 | rprintf(FCLIENT, "\n"); |
b9f592fb | 259 | rprintf(FINFO, |
b64ee91a | 260 | "sent %s bytes received %s bytes %s bytes/sec\n", |
60613dc8 WD |
261 | human_num(total_written), human_num(total_read), |
262 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
263 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
264 | human_num(stats.total_size), | |
b9f592fb | 265 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 266 | } |
fc8a6b97 AT |
267 | |
268 | fflush(stdout); | |
269 | fflush(stderr); | |
c627d613 AT |
270 | } |
271 | ||
272 | ||
e5a2b854 MP |
273 | /** |
274 | * If our C library can get malloc statistics, then show them to FINFO | |
275 | **/ | |
276 | static void show_malloc_stats(void) | |
277 | { | |
4f5b0756 | 278 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
279 | struct mallinfo mi; |
280 | ||
281 | mi = mallinfo(); | |
282 | ||
b64ee91a WD |
283 | rprintf(FCLIENT, "\n"); |
284 | rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", | |
f846a9bf WD |
285 | getpid(), am_server ? "server " : "", |
286 | am_daemon ? "daemon " : "", who_am_i()); | |
287 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
288 | (long)mi.arena); | |
289 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
290 | (long)mi.ordblks); | |
291 | rprintf(FINFO, " smblks: %10ld\n", | |
292 | (long)mi.smblks); | |
293 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
294 | (long)mi.hblks); | |
295 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
296 | (long)mi.hblkhd); | |
297 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
298 | (long)mi.arena + mi.hblkhd); | |
299 | rprintf(FINFO, " usmblks: %10ld\n", | |
300 | (long)mi.usmblks); | |
301 | rprintf(FINFO, " fsmblks: %10ld\n", | |
302 | (long)mi.fsmblks); | |
303 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
304 | (long)mi.uordblks); | |
305 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
306 | (long)mi.fordblks); | |
307 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
308 | (long)mi.keepcost); | |
e5a2b854 MP |
309 | #endif /* HAVE_MALLINFO */ |
310 | } | |
311 | ||
312 | ||
0882faa2 | 313 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
314 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
315 | int *f_in, int *f_out) | |
c627d613 | 316 | { |
6c2e5b56 | 317 | int i, argc = 0; |
887e553f | 318 | char *args[MAX_ARGS]; |
19b27a48 | 319 | pid_t ret; |
82f0c63e | 320 | char *dir = NULL; |
bb4aa89c | 321 | int dash_l_set = 0; |
366345fe | 322 | |
088aac85 | 323 | if (!read_batch && !local_server) { |
82f0c63e | 324 | char *t, *f, in_quote = '\0'; |
9af87151 | 325 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 326 | if (!cmd) |
9af87151 | 327 | cmd = rsh_env; |
366345fe AT |
328 | if (!cmd) |
329 | cmd = RSYNC_RSH; | |
330 | cmd = strdup(cmd); | |
d9c7edf6 | 331 | if (!cmd) |
366345fe AT |
332 | goto oom; |
333 | ||
82f0c63e WD |
334 | for (t = f = cmd; *f; f++) { |
335 | if (*f == ' ') | |
336 | continue; | |
e7a392c7 | 337 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 338 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 339 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
340 | exit_cleanup(RERR_SYNTAX); |
341 | } | |
82f0c63e WD |
342 | args[argc++] = t; |
343 | while (*f != ' ' || in_quote) { | |
344 | if (!*f) { | |
345 | if (in_quote) { | |
346 | rprintf(FERROR, | |
347 | "Missing trailing-%c in remote-shell command.\n", | |
348 | in_quote); | |
349 | exit_cleanup(RERR_SYNTAX); | |
350 | } | |
351 | f--; | |
352 | break; | |
353 | } | |
354 | if (*f == '\'' || *f == '"') { | |
355 | if (!in_quote) { | |
356 | in_quote = *f++; | |
357 | continue; | |
358 | } | |
359 | if (*f == in_quote && *++f != in_quote) { | |
360 | in_quote = '\0'; | |
361 | continue; | |
362 | } | |
363 | } | |
364 | *t++ = *f++; | |
365 | } | |
366 | *t++ = '\0'; | |
887e553f | 367 | } |
c627d613 | 368 | |
d9c7edf6 | 369 | /* check to see if we've already been given '-l user' in |
9af87151 | 370 | * the remote-shell command */ |
bb4aa89c WD |
371 | for (i = 0; i < argc-1; i++) { |
372 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
373 | dash_l_set = 1; | |
374 | } | |
375 | ||
4f5b0756 | 376 | #ifdef HAVE_REMSH |
366345fe AT |
377 | /* remsh (on HPUX) takes the arguments the other way around */ |
378 | args[argc++] = machine; | |
bb4aa89c | 379 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
380 | args[argc++] = "-l"; |
381 | args[argc++] = user; | |
382 | } | |
7b8356d0 | 383 | #else |
bb4aa89c | 384 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
385 | args[argc++] = "-l"; |
386 | args[argc++] = user; | |
387 | } | |
388 | args[argc++] = machine; | |
7b8356d0 | 389 | #endif |
c627d613 | 390 | |
366345fe | 391 | args[argc++] = rsync_path; |
c627d613 | 392 | |
9af87151 | 393 | if (blocking_io < 0) { |
90e22f4b WD |
394 | char *cp; |
395 | if ((cp = strrchr(cmd, '/')) != NULL) | |
396 | cp++; | |
397 | else | |
398 | cp = cmd; | |
399 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
400 | blocking_io = 1; | |
66b71163 | 401 | } |
e384bfbd | 402 | |
93689aa5 | 403 | server_options(args,&argc); |
e7a392c7 WD |
404 | |
405 | if (argc >= MAX_ARGS - 2) { | |
406 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
407 | exit_cleanup(RERR_SYNTAX); | |
408 | } | |
366345fe | 409 | } |
c627d613 | 410 | |
366345fe | 411 | args[argc++] = "."; |
76076c4b | 412 | |
d9c7edf6 | 413 | if (!daemon_over_rsh && path && *path) |
366345fe | 414 | args[argc++] = path; |
c627d613 | 415 | |
366345fe | 416 | args[argc] = NULL; |
c627d613 | 417 | |
366345fe | 418 | if (verbose > 3) { |
e7a392c7 | 419 | for (i = 0; i < argc; i++) |
b64ee91a WD |
420 | rprintf(FCLIENT, "cmd[%d]=%s ", i, args[i]); |
421 | rprintf(FCLIENT, "\n"); | |
366345fe AT |
422 | } |
423 | ||
c0d8e84c WD |
424 | if (read_batch) { |
425 | int from_gen_pipe[2]; | |
426 | if (fd_pair(from_gen_pipe) < 0) { | |
427 | rsyserr(FERROR, errno, "pipe"); | |
428 | exit_cleanup(RERR_IPC); | |
429 | } | |
430 | batch_gen_fd = from_gen_pipe[0]; | |
431 | *f_out = from_gen_pipe[1]; | |
432 | *f_in = batch_fd; | |
433 | ret = -1; /* no child pid */ | |
434 | } else if (local_server) { | |
b1df18d7 WD |
435 | /* If the user didn't request --[no-]whole-file, force |
436 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 437 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 438 | whole_file = 1; |
25d34a5c | 439 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 440 | } else |
366345fe | 441 | ret = piped_child(args,f_in,f_out); |
c627d613 | 442 | |
3a69fad0 WD |
443 | if (dir) |
444 | free(dir); | |
82306bf6 | 445 | |
366345fe | 446 | return ret; |
c627d613 | 447 | |
acee11fc | 448 | oom: |
366345fe AT |
449 | out_of_memory("do_cmd"); |
450 | return 0; /* not reached */ | |
c627d613 AT |
451 | } |
452 | ||
eb598fac WD |
453 | /* The receiving side operates in one of two modes: |
454 | * | |
cc8c5057 WD |
455 | * 1. it receives any number of files into a destination directory, |
456 | * placing them according to their names in the file-list. | |
eb598fac WD |
457 | * |
458 | * 2. it receives a single file and saves it using the name in the | |
459 | * destination path instead of its file-list name. This requires a | |
460 | * "local name" for writing out the destination file. | |
461 | * | |
a7d461fc WD |
462 | * So, our task is to figure out what mode/local-name we need. |
463 | * For mode 1, we change into the destination directory and return NULL. | |
464 | * For mode 2, we change into the directory containing the destination | |
465 | * file (if we aren't already there) and return the local-name. */ | |
eb598fac | 466 | static char *get_local_name(struct file_list *flist, char *dest_path) |
c627d613 | 467 | { |
7a6421fa | 468 | STRUCT_STAT st; |
a7d461fc | 469 | int statret; |
eb598fac | 470 | char *cp; |
c627d613 | 471 | |
eb598fac WD |
472 | if (verbose > 2) { |
473 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
474 | flist->count, NS(dest_path)); | |
475 | } | |
1f0610ef | 476 | |
ee8e2b15 | 477 | if (!dest_path || list_only) |
1f0610ef | 478 | return NULL; |
c95da96a | 479 | |
a7d461fc | 480 | /* See what currently exists at the destination. */ |
1a7f3d99 | 481 | if ((statret = do_stat(dest_path, &st)) == 0) { |
a7d461fc | 482 | /* If the destination is a dir, enter it and use mode 1. */ |
1ff5450d | 483 | if (S_ISDIR(st.st_mode)) { |
615a5415 | 484 | if (!push_dir(dest_path, 0)) { |
982e05bb | 485 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 486 | full_fname(dest_path)); |
65417579 | 487 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
488 | } |
489 | return NULL; | |
490 | } | |
491 | if (flist->count > 1) { | |
eb598fac WD |
492 | rprintf(FERROR, |
493 | "ERROR: destination must be a directory when" | |
494 | " copying more than 1 file\n"); | |
65417579 | 495 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 496 | } |
44c26bf2 WD |
497 | /* Caution: flist->count could be 0! */ |
498 | if (flist->count == 1 && S_ISDIR(flist->files[0]->mode)) { | |
499 | rprintf(FERROR, | |
500 | "ERROR: cannot overwrite non-directory" | |
501 | " with a directory\n"); | |
502 | exit_cleanup(RERR_FILESELECT); | |
503 | } | |
cc8c5057 | 504 | } else if (errno != ENOENT) { |
a7d461fc WD |
505 | /* If we don't know what's at the destination, fail. */ |
506 | rsyserr(FERROR, errno, "ERROR: cannot stat destination %s", | |
cc8c5057 WD |
507 | full_fname(dest_path)); |
508 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
509 | } |
510 | ||
eb598fac WD |
511 | cp = strrchr(dest_path, '/'); |
512 | ||
a7d461fc WD |
513 | /* If we need a destination directory because the transfer is not |
514 | * of a single non-directory or the user has requested one via a | |
515 | * destination path ending in a slash, create one and use mode 1. */ | |
eb598fac WD |
516 | if (flist->count > 1 || (cp && !cp[1])) { |
517 | /* Lop off the final slash (if any). */ | |
518 | if (cp && !cp[1]) | |
519 | *cp = '\0'; | |
520 | ||
a7d461fc WD |
521 | if (statret == 0) { |
522 | rprintf(FERROR, | |
523 | "ERROR: destination path is not a directory\n"); | |
524 | exit_cleanup(RERR_SYNTAX); | |
525 | } | |
526 | ||
05278935 | 527 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
528 | rsyserr(FERROR, errno, "mkdir %s failed", |
529 | full_fname(dest_path)); | |
530 | exit_cleanup(RERR_FILEIO); | |
531 | } | |
1ff5450d | 532 | |
2a94207a WD |
533 | new_root_dir = 1; |
534 | ||
eb598fac WD |
535 | if (verbose) |
536 | rprintf(FINFO, "created directory %s\n", dest_path); | |
537 | ||
538 | if (dry_run) { | |
615a5415 | 539 | /* Indicate that dest dir doesn't really exist. */ |
eb598fac | 540 | dry_run++; |
eb598fac WD |
541 | } |
542 | ||
615a5415 | 543 | if (!push_dir(dest_path, dry_run > 1)) { |
eb598fac WD |
544 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
545 | full_fname(dest_path)); | |
546 | exit_cleanup(RERR_FILESELECT); | |
547 | } | |
e5a96f0f | 548 | |
e5a96f0f | 549 | return NULL; |
1ff5450d AT |
550 | } |
551 | ||
eb598fac WD |
552 | /* Otherwise, we are writing a single file, possibly on top of an |
553 | * existing non-directory. Change to the item's parent directory | |
554 | * (if it has a path component), return the basename of the | |
555 | * destination file as the local name, and use mode 2. */ | |
556 | if (!cp) | |
557 | return dest_path; | |
558 | ||
559 | if (cp == dest_path) | |
560 | dest_path = "/"; | |
561 | ||
562 | *cp = '\0'; | |
615a5415 | 563 | if (!push_dir(dest_path, 0)) { |
eb598fac WD |
564 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
565 | full_fname(dest_path)); | |
65417579 | 566 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 567 | } |
eb598fac | 568 | *cp = '/'; |
1ff5450d | 569 | |
eb598fac | 570 | return cp + 1; |
c627d613 AT |
571 | } |
572 | ||
615a5415 WD |
573 | /* Call this if the destination dir (which is assumed to be in curr_dir) |
574 | * does not yet exist and we can't create it due to being in dry-run | |
575 | * mode. We'll fix dirs that can be relative to the non-existent dir. */ | |
576 | static void fix_basis_dirs(void) | |
577 | { | |
ddcba3f0 | 578 | char **dir, *new, *slash; |
615a5415 WD |
579 | int len; |
580 | ||
ddcba3f0 WD |
581 | if (dry_run <= 1) |
582 | return; | |
583 | ||
584 | slash = strrchr(curr_dir, '/'); | |
585 | ||
615a5415 WD |
586 | for (dir = basis_dir; *dir; dir++) { |
587 | if (**dir == '/') | |
588 | continue; | |
589 | len = curr_dir_len + 1 + strlen(*dir) + 1; | |
590 | if (!(new = new_array(char, len))) | |
591 | out_of_memory("fix_basis_dirs"); | |
ddcba3f0 WD |
592 | if (slash && strncmp(*dir, "../", 3) == 0) { |
593 | /* We want to remove only one leading "../" prefix for | |
594 | * the directory we couldn't create in dry-run mode: | |
595 | * this ensures that any other ".." references get | |
596 | * evaluated the same as they would for a live copy. */ | |
597 | *slash = '\0'; | |
598 | pathjoin(new, len, curr_dir, *dir + 3); | |
599 | *slash = '/'; | |
600 | } else | |
601 | pathjoin(new, len, curr_dir, *dir); | |
615a5415 WD |
602 | *dir = new; |
603 | } | |
604 | } | |
c627d613 | 605 | |
1a8e5c97 | 606 | /* This is only called by the sender. */ |
3485ae83 | 607 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 608 | { |
1a8e5c97 WD |
609 | int i; |
610 | ||
611 | if (protocol_version < 29) | |
612 | i = read_int(f_in); | |
613 | else { | |
3485ae83 | 614 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
615 | && read_shortint(f_in) == ITEM_IS_NEW) { |
616 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 617 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
618 | write_shortint(f_out, ITEM_IS_NEW); |
619 | } | |
4e0fcd85 WD |
620 | } |
621 | ||
82ad07c4 | 622 | if (i != NDX_DONE) { |
c7791b8c WD |
623 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
624 | i, who_am_i()); | |
1a8e5c97 | 625 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
626 | } |
627 | } | |
628 | ||
629 | ||
eb598fac | 630 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 631 | { |
7a6421fa AT |
632 | struct file_list *flist; |
633 | char *dir = argv[0]; | |
c627d613 | 634 | |
45e08edb WD |
635 | if (verbose > 2) { |
636 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
637 | (long)getpid()); | |
638 | } | |
d9c7edf6 | 639 | |
2adbcdc7 | 640 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
641 | rprintf(FERROR, "ERROR: module is write only\n"); |
642 | exit_cleanup(RERR_SYNTAX); | |
643 | return; | |
644 | } | |
47c11975 | 645 | if (am_daemon && lp_read_only(module_id) && remove_source_files) { |
bf26aa22 | 646 | rprintf(FERROR, |
044ccbaa | 647 | "ERROR: --remove-%s-files cannot be used with a read-only module\n", |
47c11975 | 648 | remove_source_files == 1 ? "source" : "sent"); |
bf26aa22 WD |
649 | exit_cleanup(RERR_SYNTAX); |
650 | return; | |
651 | } | |
7a92ded3 | 652 | |
582c1589 | 653 | if (!relative_paths) { |
615a5415 | 654 | if (!push_dir(dir, 0)) { |
582c1589 WD |
655 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
656 | full_fname(dir)); | |
657 | exit_cleanup(RERR_FILESELECT); | |
658 | } | |
7a6421fa AT |
659 | } |
660 | argc--; | |
661 | argv++; | |
d9c7edf6 | 662 | |
48a1ff0d | 663 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 664 | argc = 1; |
7a6421fa AT |
665 | argv--; |
666 | argv[0] = "."; | |
667 | } | |
d9c7edf6 | 668 | |
7a6421fa | 669 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
670 | if (!flist || flist->count == 0) { |
671 | exit_cleanup(0); | |
672 | } | |
a00628b3 | 673 | the_file_list = flist; |
8d9dc9f9 | 674 | |
da3478b2 WD |
675 | io_start_buffering_in(); |
676 | io_start_buffering_out(); | |
677 | ||
7a6421fa | 678 | send_files(flist,f_out,f_in); |
f1e3656e | 679 | io_flush(FULL_FLUSH); |
33c4b445 | 680 | handle_stats(f_out); |
4e0fcd85 | 681 | if (protocol_version >= 24) |
3485ae83 | 682 | read_final_goodbye(f_in, f_out); |
f1e3656e | 683 | io_flush(FULL_FLUSH); |
7a6421fa | 684 | exit_cleanup(0); |
c627d613 AT |
685 | } |
686 | ||
687 | ||
dc5ddbcc AT |
688 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
689 | { | |
d186eb1a | 690 | int pid; |
84e6d6fd | 691 | int exit_code = 0; |
c70e07d9 | 692 | int error_pipe[2]; |
dc5ddbcc | 693 | |
bb6721dc WD |
694 | /* The receiving side mustn't obey this, or an existing symlink that |
695 | * points to an identical file won't be replaced by the referent. */ | |
a695b379 | 696 | copy_links = copy_dirlinks = 0; |
bb6721dc | 697 | |
1e1ca253 | 698 | #ifdef SUPPORT_HARD_LINKS |
d186eb1a | 699 | if (preserve_hard_links) |
3485ae83 | 700 | init_hard_links(); |
1e1ca253 | 701 | #endif |
dc5ddbcc | 702 | |
c70e07d9 | 703 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 704 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 705 | exit_cleanup(RERR_IPC); |
554e0a8d | 706 | } |
d9c7edf6 | 707 | |
f1e3656e | 708 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 709 | |
ba449e44 | 710 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 711 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
712 | exit_cleanup(RERR_IPC); |
713 | } | |
714 | ||
715 | if (pid == 0) { | |
554e0a8d | 716 | close(error_pipe[0]); |
3a69fad0 WD |
717 | if (f_in != f_out) |
718 | close(f_out); | |
e08c9610 | 719 | |
554e0a8d | 720 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 721 | close_multiplexing_out(); |
554e0a8d AT |
722 | |
723 | /* set place to send errors */ | |
f1e3656e | 724 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 725 | |
c70e07d9 | 726 | recv_files(f_in, flist, local_name); |
f1e3656e | 727 | io_flush(FULL_FLUSH); |
33c4b445 | 728 | handle_stats(f_in); |
e08c9610 | 729 | |
f1e3656e WD |
730 | send_msg(MSG_DONE, "", 0); |
731 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 732 | |
40df65fd WD |
733 | /* Handle any keep-alive packets from the post-processing work |
734 | * that the generator does. */ | |
4e0fcd85 | 735 | if (protocol_version >= 29) { |
051182cb | 736 | kluge_around_eof = -1; |
1a8e5c97 WD |
737 | |
738 | /* This should only get stopped via a USR2 signal. */ | |
739 | while (read_int(f_in) == flist->count | |
740 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
741 | ||
3485ae83 WD |
742 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
743 | who_am_i()); | |
1a8e5c97 | 744 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
745 | } |
746 | ||
9e0582f9 WD |
747 | /* Finally, we go to sleep until our parent kills us with a |
748 | * USR2 signal. We sleep for a short time, as on some OSes | |
749 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
750 | while (1) |
751 | msleep(20); | |
d186eb1a | 752 | } |
dc5ddbcc | 753 | |
b695f242 | 754 | am_generator = 1; |
9eeb3b9c | 755 | close_multiplexing_in(); |
e8a96e27 | 756 | if (write_batch && !am_server) |
b9f592fb | 757 | stop_write_batch(); |
b695f242 | 758 | |
554e0a8d | 759 | close(error_pipe[1]); |
3a69fad0 WD |
760 | if (f_in != f_out) |
761 | close(f_in); | |
e1b3d5c4 | 762 | |
da3478b2 | 763 | io_start_buffering_out(); |
b3e10ed7 | 764 | |
f1e3656e | 765 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 766 | |
c70e07d9 | 767 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 768 | |
33c4b445 | 769 | handle_stats(-1); |
f1e3656e | 770 | io_flush(FULL_FLUSH); |
d04e9c51 | 771 | if (protocol_version >= 24) { |
8ada7518 | 772 | /* send a final goodbye message */ |
82ad07c4 | 773 | write_int(f_out, NDX_DONE); |
8ada7518 | 774 | } |
f1e3656e | 775 | io_flush(FULL_FLUSH); |
8ada7518 | 776 | |
f1e3656e | 777 | set_msg_fd_in(-1); |
089a2435 | 778 | kill(pid, SIGUSR2); |
84e6d6fd WD |
779 | wait_process_with_flush(pid, &exit_code); |
780 | return exit_code; | |
dc5ddbcc AT |
781 | } |
782 | ||
c627d613 | 783 | |
9486289c | 784 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 785 | { |
84e6d6fd | 786 | int exit_code; |
7a6421fa | 787 | struct file_list *flist; |
6c2e5b56 | 788 | char *local_name = NULL; |
7a6421fa | 789 | char *dir = NULL; |
07bff66f WD |
790 | int save_verbose = verbose; |
791 | ||
792 | if (filesfrom_fd >= 0) { | |
793 | /* We can't mix messages with files-from data on the socket, | |
794 | * so temporarily turn off verbose messages. */ | |
795 | verbose = 0; | |
796 | } | |
f0fca04e | 797 | |
45e08edb WD |
798 | if (verbose > 2) { |
799 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
800 | argc, (long)getpid()); | |
801 | } | |
09b7f5db | 802 | |
2adbcdc7 | 803 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
804 | rprintf(FERROR,"ERROR: module is read only\n"); |
805 | exit_cleanup(RERR_SYNTAX); | |
806 | return; | |
807 | } | |
808 | ||
7a6421fa AT |
809 | if (argc > 0) { |
810 | dir = argv[0]; | |
811 | argc--; | |
812 | argv++; | |
615a5415 | 813 | if (!am_daemon && !push_dir(dir, 0)) { |
982e05bb WD |
814 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
815 | full_fname(dir)); | |
65417579 | 816 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 817 | } |
7a6421fa | 818 | } |
c627d613 | 819 | |
da3478b2 | 820 | io_start_buffering_in(); |
57dee64e | 821 | recv_filter_list(f_in); |
c627d613 | 822 | |
7c2a9e76 | 823 | if (filesfrom_fd >= 0) { |
07bff66f WD |
824 | /* We need to send the files-from names to the sender at the |
825 | * same time that we receive the file-list from them, so we | |
826 | * need the IO routines to automatically write out the names | |
827 | * onto our f_out socket as we read the file-list. This | |
828 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
829 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
830 | filesfrom_fd = -1; | |
831 | } | |
832 | ||
b9f592fb | 833 | flist = recv_file_list(f_in); |
07bff66f | 834 | verbose = save_verbose; |
4c36a13e AT |
835 | if (!flist) { |
836 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 837 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 838 | } |
a00628b3 | 839 | the_file_list = flist; |
d9c7edf6 | 840 | |
29fad7a3 | 841 | if (argc > 0) |
7a6421fa | 842 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 843 | |
7c58c991 WD |
844 | /* Now that we know what our destination directory turned out to be, |
845 | * we can sanitize the --link-/copy-/compare-dest args correctly. */ | |
846 | if (sanitize_paths) { | |
7c58c991 | 847 | char **dir; |
c2c8db91 | 848 | for (dir = basis_dir; *dir; dir++) { |
c2a2147a | 849 | *dir = sanitize_path(NULL, *dir, NULL, curr_dir_depth, NULL); |
c2c8db91 WD |
850 | } |
851 | if (partial_dir) { | |
852 | partial_dir = sanitize_path(NULL, partial_dir, NULL, curr_dir_depth, NULL); | |
c2c8db91 WD |
853 | } |
854 | } | |
ddcba3f0 | 855 | fix_basis_dirs(); |
615a5415 | 856 | |
c2c8db91 WD |
857 | if (server_filter_list.head) { |
858 | char **dir; | |
859 | struct filter_list_struct *elp = &server_filter_list; | |
860 | ||
861 | for (dir = basis_dir; *dir; dir++) { | |
862 | if (check_filter(elp, *dir, 1) < 0) | |
863 | goto options_rejected; | |
864 | } | |
865 | if (partial_dir && *partial_dir == '/' | |
866 | && check_filter(elp, partial_dir, 1) < 0) { | |
867 | options_rejected: | |
868 | rprintf(FERROR, | |
869 | "Your options have been rejected by the server.\n"); | |
870 | exit_cleanup(RERR_SYNTAX); | |
871 | } | |
7c58c991 WD |
872 | } |
873 | ||
84e6d6fd WD |
874 | exit_code = do_recv(f_in,f_out,flist,local_name); |
875 | exit_cleanup(exit_code); | |
c627d613 AT |
876 | } |
877 | ||
878 | ||
734a94a2 | 879 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
880 | { |
881 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 882 | return 0; |
25d34a5c MP |
883 | } |
884 | ||
885 | ||
9486289c | 886 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 887 | { |
f0359dd0 AT |
888 | set_nonblocking(f_in); |
889 | set_nonblocking(f_out); | |
890 | ||
da3478b2 WD |
891 | io_set_sock_fds(f_in, f_out); |
892 | setup_protocol(f_out, f_in); | |
595251de | 893 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
894 | setup_iconv(); |
895 | #endif | |
da3478b2 | 896 | |
d04e9c51 | 897 | if (protocol_version >= 23) |
da3478b2 | 898 | io_start_multiplex_out(); |
7a6421fa | 899 | |
7a6421fa | 900 | if (am_sender) { |
83926d3c | 901 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
902 | if (need_messages_from_generator) |
903 | io_start_multiplex_in(); | |
9b3318b0 | 904 | |
7842418b | 905 | recv_filter_list(f_in); |
7a6421fa AT |
906 | do_server_sender(f_in, f_out, argc, argv); |
907 | } else { | |
908 | do_server_recv(f_in, f_out, argc, argv); | |
909 | } | |
910 | exit_cleanup(0); | |
366345fe AT |
911 | } |
912 | ||
0ba48136 MP |
913 | |
914 | /* | |
915 | * This is called once the connection has been negotiated. It is used | |
916 | * for rsyncd, remote-shell, and local connections. | |
917 | */ | |
19b27a48 | 918 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 919 | { |
088aac85 | 920 | struct file_list *flist = NULL; |
84e6d6fd | 921 | int exit_code = 0, exit_code2 = 0; |
9486289c | 922 | char *local_name = NULL; |
19b27a48 AT |
923 | |
924 | cleanup_child_pid = pid; | |
67a28eb2 | 925 | if (!read_batch) { |
b9f592fb WD |
926 | set_nonblocking(f_in); |
927 | set_nonblocking(f_out); | |
928 | } | |
f0359dd0 | 929 | |
da3478b2 | 930 | io_set_sock_fds(f_in, f_out); |
6d7b6081 | 931 | setup_protocol(f_out,f_in); |
595251de | 932 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
933 | setup_iconv(); |
934 | #endif | |
6d7b6081 | 935 | |
b9f592fb | 936 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 937 | io_start_multiplex_in(); |
d9c7edf6 | 938 | |
18882701 WD |
939 | /* We set our stderr file handle to blocking because ssh might have |
940 | * set it to non-blocking. This can be particularly troublesome if | |
941 | * stderr is a clone of stdout, because ssh would have set our stdout | |
942 | * to non-blocking at the same time (which can easily cause us to lose | |
943 | * output from our print statements). This kluge shouldn't cause ssh | |
944 | * any problems for how we use it. Note also that we delayed setting | |
945 | * this until after the above protocol setup so that we know for sure | |
946 | * that ssh is done twiddling its file descriptors. */ | |
947 | set_blocking(STDERR_FILENO); | |
948 | ||
9486289c | 949 | if (am_sender) { |
83926d3c | 950 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 951 | io_start_buffering_out(); |
860236bf | 952 | if (!filesfrom_host) |
a0a33ee5 | 953 | set_msg_fd_in(f_in); |
57dee64e | 954 | send_filter_list(f_out); |
860236bf | 955 | if (filesfrom_host) |
7c2a9e76 | 956 | filesfrom_fd = f_in; |
b9f592fb | 957 | |
e8a96e27 | 958 | if (write_batch && !am_server) |
b9f592fb | 959 | start_write_batch(f_out); |
a00628b3 | 960 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 961 | set_msg_fd_in(-1); |
d9c7edf6 | 962 | if (verbose > 3) |
9486289c | 963 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 964 | the_file_list = flist; |
e1b3d5c4 | 965 | |
f1e3656e | 966 | io_flush(NORMAL_FLUSH); |
9486289c | 967 | send_files(flist,f_out,f_in); |
f1e3656e | 968 | io_flush(FULL_FLUSH); |
33c4b445 | 969 | handle_stats(-1); |
4e0fcd85 | 970 | if (protocol_version >= 24) |
3485ae83 | 971 | read_final_goodbye(f_in, f_out); |
9486289c AT |
972 | if (pid != -1) { |
973 | if (verbose > 3) | |
08a740ff | 974 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 975 | io_flush(FULL_FLUSH); |
84e6d6fd | 976 | wait_process_with_flush(pid, &exit_code); |
9486289c | 977 | } |
33c4b445 | 978 | output_summary(); |
c87ae64a | 979 | io_flush(FULL_FLUSH); |
84e6d6fd | 980 | exit_cleanup(exit_code); |
9486289c | 981 | } |
f7632fc6 | 982 | |
bf26aa22 WD |
983 | if (need_messages_from_generator && !read_batch) |
984 | io_start_multiplex_out(); | |
985 | ||
48a1ff0d WD |
986 | if (argc == 0) |
987 | list_only |= 1; | |
d9c7edf6 | 988 | |
57dee64e | 989 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 990 | |
7c2a9e76 WD |
991 | if (filesfrom_fd >= 0) { |
992 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
993 | filesfrom_fd = -1; | |
994 | } | |
995 | ||
e8a96e27 | 996 | if (write_batch && !am_server) |
b9f592fb | 997 | start_write_batch(f_in); |
9486289c | 998 | flist = recv_file_list(f_in); |
a00628b3 | 999 | the_file_list = flist; |
d9c7edf6 | 1000 | |
9d19f8a5 WD |
1001 | if (flist && flist->count > 0) { |
1002 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 1003 | |
ddcba3f0 | 1004 | fix_basis_dirs(); |
615a5415 | 1005 | |
84e6d6fd | 1006 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
1007 | } else { |
1008 | handle_stats(-1); | |
1009 | output_summary(); | |
1010 | } | |
d9c7edf6 | 1011 | |
9486289c | 1012 | if (pid != -1) { |
8d9dc9f9 | 1013 | if (verbose > 3) |
08a740ff | 1014 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 1015 | io_flush(FULL_FLUSH); |
84e6d6fd | 1016 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1017 | } |
d9c7edf6 | 1018 | |
84e6d6fd | 1019 | return MAX(exit_code, exit_code2); |
9486289c AT |
1020 | } |
1021 | ||
7169bb4a MP |
1022 | static int copy_argv (char *argv[]) |
1023 | { | |
1024 | int i; | |
1025 | ||
1026 | for (i = 0; argv[i]; i++) { | |
1027 | if (!(argv[i] = strdup(argv[i]))) { | |
1028 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
1029 | __FILE__, __LINE__); | |
1030 | return RERR_MALLOC; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | ||
c1a04ecb | 1038 | /** |
0ba48136 MP |
1039 | * Start a client for either type of remote connection. Work out |
1040 | * whether the arguments request a remote shell or rsyncd connection, | |
1041 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
1042 | * |
1043 | * Calls either start_socket_client (for sockets) or do_cmd and | |
1044 | * client_run (for ssh). | |
c1a04ecb | 1045 | **/ |
fc8a6b97 | 1046 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
1047 | { |
1048 | char *p; | |
1049 | char *shell_machine = NULL; | |
1050 | char *shell_path = NULL; | |
1051 | char *shell_user = NULL; | |
19b27a48 AT |
1052 | int ret; |
1053 | pid_t pid; | |
5d6bcd44 | 1054 | int f_in,f_out; |
7169bb4a MP |
1055 | int rc; |
1056 | ||
1057 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 1058 | * command line. */ |
75aeac44 | 1059 | if ((rc = copy_argv(argv))) |
7169bb4a | 1060 | return rc; |
5d6bcd44 | 1061 | |
d16c245f | 1062 | if (!read_batch) { /* for read_batch, NO source is specified */ |
860236bf WD |
1063 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
1064 | if (shell_path) { /* source is remote */ | |
9425918d WD |
1065 | char *dummy1; |
1066 | int dummy2; | |
ee8e2b15 WD |
1067 | if (--argc |
1068 | && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { | |
9425918d WD |
1069 | rprintf(FERROR, |
1070 | "The source and destination cannot both be remote.\n"); | |
1071 | exit_cleanup(RERR_SYNTAX); | |
1072 | } | |
42ccb4c0 | 1073 | argv++; |
860236bf WD |
1074 | if (filesfrom_host && *filesfrom_host |
1075 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1076 | rprintf(FERROR, |
50b31539 | 1077 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1078 | exit_cleanup(RERR_SYNTAX); |
1079 | } | |
860236bf | 1080 | if (rsync_port) { |
d9c7edf6 | 1081 | if (!shell_cmd) { |
860236bf WD |
1082 | return start_socket_client(shell_machine, |
1083 | shell_path, | |
42ccb4c0 | 1084 | argc, argv); |
d9c7edf6 | 1085 | } |
d9c7edf6 | 1086 | daemon_over_rsh = 1; |
75aeac44 | 1087 | } |
3591c066 | 1088 | |
42ccb4c0 WD |
1089 | am_sender = 0; |
1090 | } else { /* source is local, check dest arg */ | |
1091 | am_sender = 1; | |
1092 | ||
ee8e2b15 WD |
1093 | if (argc > 1) |
1094 | p = argv[--argc]; | |
1095 | else { | |
1096 | p = "."; | |
1097 | list_only = 1; | |
d9c7edf6 | 1098 | } |
a125c82a | 1099 | |
ee8e2b15 | 1100 | shell_path = check_for_hostspec(p, &shell_machine, &rsync_port); |
860236bf WD |
1101 | if (shell_path && filesfrom_host && *filesfrom_host |
1102 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1103 | rprintf(FERROR, |
50b31539 | 1104 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1105 | exit_cleanup(RERR_SYNTAX); |
1106 | } | |
860236bf | 1107 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1108 | local_server = 1; |
860236bf | 1109 | if (filesfrom_host) { |
7c2a9e76 | 1110 | rprintf(FERROR, |
50b31539 | 1111 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1112 | exit_cleanup(RERR_SYNTAX); |
1113 | } | |
860236bf | 1114 | shell_machine = NULL; |
ee8e2b15 | 1115 | shell_path = p; |
860236bf | 1116 | } else if (rsync_port) { |
d9c7edf6 | 1117 | if (!shell_cmd) { |
860236bf WD |
1118 | return start_socket_client(shell_machine, |
1119 | shell_path, | |
42ccb4c0 | 1120 | argc, argv); |
d9c7edf6 | 1121 | } |
d9c7edf6 | 1122 | daemon_over_rsh = 1; |
a125c82a | 1123 | } |
5d6bcd44 | 1124 | } |
d16c245f | 1125 | } else { /* read_batch */ |
d9c7edf6 WD |
1126 | local_server = 1; |
1127 | shell_path = argv[argc-1]; | |
860236bf | 1128 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1129 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1130 | exit_cleanup(RERR_SYNTAX); | |
1131 | } | |
6902ed17 MP |
1132 | } |
1133 | ||
5d6bcd44 | 1134 | if (shell_machine) { |
6fc048f4 | 1135 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1136 | if (p) { |
1137 | *p = 0; | |
1138 | shell_user = shell_machine; | |
1139 | shell_machine = p+1; | |
1140 | } | |
1141 | } | |
1142 | ||
1143 | if (verbose > 3) { | |
9486289c | 1144 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1145 | shell_cmd ? shell_cmd : "", |
1146 | shell_machine ? shell_machine : "", | |
1147 | shell_user ? shell_user : "", | |
1148 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1149 | } |
d9c7edf6 | 1150 | |
d16c245f | 1151 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1152 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1153 | usage(FERROR); |
65417579 | 1154 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1155 | } |
27e3e9c9 | 1156 | |
d16c245f | 1157 | /* ... or no dest at all */ |
48a1ff0d WD |
1158 | if (!am_sender && argc == 0) |
1159 | list_only |= 1; | |
d9c7edf6 | 1160 | |
75aeac44 WD |
1161 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1162 | &f_in,&f_out); | |
1163 | ||
1164 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1165 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1166 | if (daemon_over_rsh) { |
1167 | int tmpret; | |
1168 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1169 | f_in, f_out, argc); | |
1170 | if (tmpret < 0) | |
1171 | return tmpret; | |
1172 | } | |
1173 | ||
fc8a6b97 AT |
1174 | ret = client_run(f_in, f_out, pid, argc, argv); |
1175 | ||
1176 | fflush(stdout); | |
1177 | fflush(stderr); | |
1178 | ||
1179 | return ret; | |
5d6bcd44 AT |
1180 | } |
1181 | ||
366345fe | 1182 | |
067669da WD |
1183 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1184 | { | |
6bf32edb | 1185 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1186 | } |
1187 | ||
067669da WD |
1188 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1189 | { | |
33c4b445 WD |
1190 | if (!am_server) |
1191 | output_summary(); | |
40df65fd | 1192 | close_all(); |
33c4b445 WD |
1193 | if (log_got_error) |
1194 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1195 | _exit(0); |
1196 | } | |
1197 | ||
6d59ac19 | 1198 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1199 | { |
029c1713 | 1200 | #ifdef WNOHANG |
ee7118a8 DD |
1201 | int cnt, status; |
1202 | pid_t pid; | |
1203 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1204 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1205 | * out we're instead saving the child exit statuses for later use. |
1206 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1207 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1208 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1209 | /* save the child's exit status */ |
1210 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1211 | if (pid_stat_table[cnt].pid == 0) { | |
1212 | pid_stat_table[cnt].pid = pid; | |
1213 | pid_stat_table[cnt].status = status; | |
1214 | break; | |
1215 | } | |
1216 | } | |
ee7118a8 | 1217 | } |
029c1713 | 1218 | #endif |
8261af74 | 1219 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1220 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1221 | #endif |
19b27a48 AT |
1222 | } |
1223 | ||
c0531332 MP |
1224 | |
1225 | /** | |
1226 | * This routine catches signals and tries to send them to gdb. | |
1227 | * | |
1228 | * Because it's called from inside a signal handler it ought not to | |
1229 | * use too many library routines. | |
1230 | * | |
1231 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1232 | * debugging without easy access to X. Perhaps use an environment | |
1233 | * variable, or just call a script? | |
1234 | * | |
1235 | * @todo The /proc/ magic probably only works on Linux (and | |
1236 | * Solaris?) Can we be more portable? | |
1237 | **/ | |
1238 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1239 | const char *get_panic_action(void) |
1240 | { | |
1241 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1242 | ||
1243 | if (cmd_fmt) | |
1244 | return cmd_fmt; | |
1245 | else | |
1246 | return "xterm -display :0 -T Panic -n Panic " | |
1247 | "-e gdb /proc/%d/exe %d"; | |
1248 | } | |
1249 | ||
1250 | ||
9fb3f7a9 MP |
1251 | /** |
1252 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1253 | * | |
1254 | * This signal handler is only installed if we were configured with | |
1255 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1256 | * should just look at the environment variable, but I'm a bit leery | |
1257 | * of a signal sending us into a busy loop. | |
1258 | **/ | |
067669da | 1259 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1260 | { |
1261 | char cmd_buf[300]; | |
1262 | int ret; | |
4fdc39dd | 1263 | |
83078af5 WD |
1264 | snprintf(cmd_buf, sizeof cmd_buf, get_panic_action(), |
1265 | getpid(), getpid()); | |
c0531332 MP |
1266 | |
1267 | /* Unless we failed to execute gdb, we allow the process to | |
1268 | * continue. I'm not sure if that's right. */ | |
1269 | ret = system(cmd_buf); | |
1270 | if (ret) | |
1271 | _exit(ret); | |
1272 | } | |
1273 | #endif | |
1274 | ||
1275 | ||
5d6bcd44 | 1276 | int main(int argc,char *argv[]) |
d9c7edf6 | 1277 | { |
ff81e809 | 1278 | int ret; |
66a9dc96 WD |
1279 | int orig_argc = argc; |
1280 | char **orig_argv = argv; | |
8261af74 WD |
1281 | #ifdef HAVE_SIGACTION |
1282 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1283 | sigset_t sigmask; |
5d6bcd44 | 1284 | |
60ee01f5 | 1285 | sigemptyset(&sigmask); |
8261af74 | 1286 | # endif |
60ee01f5 WD |
1287 | sigact.sa_flags = SA_NOCLDSTOP; |
1288 | #endif | |
1289 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1290 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1291 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1292 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1293 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1294 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1295 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1296 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1297 | #endif | |
5d6bcd44 | 1298 | |
7a6421fa | 1299 | starttime = time(NULL); |
6fe05820 | 1300 | am_root = (MY_UID() == 0); |
c627d613 | 1301 | |
a800434a AT |
1302 | memset(&stats, 0, sizeof(stats)); |
1303 | ||
df5e03da AT |
1304 | if (argc < 2) { |
1305 | usage(FERROR); | |
65417579 | 1306 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1307 | } |
1308 | ||
7a6421fa | 1309 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1310 | * carried across */ |
05278935 | 1311 | orig_umask = umask(0); |
5d6bcd44 | 1312 | |
eb598fac WD |
1313 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1314 | setlocale(LC_CTYPE, ""); | |
1315 | #endif | |
1316 | ||
50135767 | 1317 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1318 | /* FIXME: We ought to call the same error-handling |
1319 | * code here, rather than relying on getopt. */ | |
50135767 | 1320 | option_error(); |
65417579 | 1321 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1322 | } |
5d6bcd44 | 1323 | |
60ee01f5 WD |
1324 | SIGACTMASK(SIGINT, sig_int); |
1325 | SIGACTMASK(SIGHUP, sig_int); | |
1326 | SIGACTMASK(SIGTERM, sig_int); | |
1327 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1328 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1329 | #endif | |
6b83141d | 1330 | |
34758d5c MP |
1331 | /* Ignore SIGPIPE; we consistently check error codes and will |
1332 | * see the EPIPE. */ | |
60ee01f5 | 1333 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1334 | #ifdef SIGXFSZ |
1335 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1336 | #endif | |
34758d5c | 1337 | |
c226b7c2 | 1338 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1339 | * (implemented by forking "pwd" and reading its output) doesn't |
1340 | * work when there are other child processes. Also, on all systems | |
1341 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
615a5415 | 1342 | push_dir(NULL, 0); |
c226b7c2 | 1343 | |
44e9e221 WD |
1344 | init_flist(); |
1345 | ||
e8a96e27 | 1346 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1347 | if (write_batch) |
66a9dc96 | 1348 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1349 | |
dbbab0c4 WD |
1350 | if (read_batch && strcmp(batch_name, "-") == 0) |
1351 | batch_fd = STDIN_FILENO; | |
1352 | else { | |
1353 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1354 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1355 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1356 | } |
b9f592fb WD |
1357 | if (batch_fd < 0) { |
1358 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1359 | full_fname(batch_name)); |
b9f592fb WD |
1360 | exit_cleanup(RERR_FILEIO); |
1361 | } | |
9459290a WD |
1362 | if (read_batch) |
1363 | read_stream_flags(batch_fd); | |
6902ed17 | 1364 | } |
e8a96e27 WD |
1365 | if (write_batch < 0) |
1366 | dry_run = 1; | |
6902ed17 | 1367 | |
75aeac44 | 1368 | if (am_daemon && !am_server) |
7a6421fa | 1369 | return daemon_main(); |
f0fca04e | 1370 | |
08ac228f AT |
1371 | if (argc < 1) { |
1372 | usage(FERROR); | |
65417579 | 1373 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1374 | } |
1375 | ||
7a6421fa | 1376 | if (am_server) { |
f0359dd0 AT |
1377 | set_nonblocking(STDIN_FILENO); |
1378 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1379 | if (am_daemon) |
1380 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1381 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1382 | } | |
c627d613 | 1383 | |
ff81e809 | 1384 | ret = start_client(argc, argv); |
d9c7edf6 | 1385 | if (ret == -1) |
9098bbf3 | 1386 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1387 | else |
9098bbf3 MP |
1388 | exit_cleanup(ret); |
1389 | ||
0f5a04e3 | 1390 | return ret; |
c627d613 | 1391 | } |