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0ba48136 | 1 | /* -*- c-file-style: "linux" -*- |
d9c7edf6 | 2 | |
50135767 | 3 | Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org> |
c627d613 | 4 | Copyright (C) Paul Mackerras 1996 |
e5a2b854 | 5 | Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org> |
d9c7edf6 | 6 | |
c627d613 AT |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
d9c7edf6 | 11 | |
c627d613 AT |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
d9c7edf6 | 16 | |
c627d613 AT |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
21 | ||
22 | #include "rsync.h" | |
d9401514 WD |
23 | #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H |
24 | #include <locale.h> | |
25 | #endif | |
c627d613 | 26 | |
50839b4b WD |
27 | extern int verbose; |
28 | extern int dry_run; | |
29 | extern int list_only; | |
32eda096 | 30 | extern int am_root; |
d9c7edf6 WD |
31 | extern int am_server; |
32 | extern int am_sender; | |
b695f242 | 33 | extern int am_generator; |
d9c7edf6 | 34 | extern int am_daemon; |
32eda096 | 35 | extern int blocking_io; |
bf26aa22 | 36 | extern int remove_sent_files; |
32eda096 | 37 | extern int daemon_over_rsh; |
bf26aa22 | 38 | extern int need_messages_from_generator; |
051182cb | 39 | extern int kluge_around_eof; |
32eda096 | 40 | extern int do_stats; |
32eda096 WD |
41 | extern int log_got_error; |
42 | extern int module_id; | |
43 | extern int orig_umask; | |
bb6721dc | 44 | extern int copy_links; |
83926d3c | 45 | extern int keep_dirlinks; |
32eda096 | 46 | extern int preserve_hard_links; |
d04e9c51 | 47 | extern int protocol_version; |
32eda096 WD |
48 | extern int recurse; |
49 | extern int relative_paths; | |
50 | extern int rsync_port; | |
b1df18d7 | 51 | extern int whole_file; |
32eda096 WD |
52 | extern int read_batch; |
53 | extern int write_batch; | |
b9f592fb | 54 | extern int batch_fd; |
c0d8e84c | 55 | extern int batch_gen_fd; |
32eda096 WD |
56 | extern int filesfrom_fd; |
57 | extern pid_t cleanup_child_pid; | |
50839b4b | 58 | extern struct stats stats; |
860236bf | 59 | extern char *filesfrom_host; |
32eda096 WD |
60 | extern char *rsync_path; |
61 | extern char *shell_cmd; | |
9b3318b0 | 62 | extern char *batch_name; |
57dee64e WD |
63 | |
64 | int local_server = 0; | |
a00628b3 | 65 | struct file_list *the_file_list; |
c627d613 | 66 | |
91c5833b WD |
67 | /* There's probably never more than at most 2 outstanding child processes, |
68 | * but set it higher, just in case. */ | |
84e6d6fd | 69 | #define MAXCHILDPROCS 7 |
ee7118a8 | 70 | |
60ee01f5 WD |
71 | #if defined HAVE_SIGACTION && defined HAVE_SIGPROCMASK |
72 | #define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
73 | static struct sigaction sigact; | |
74 | #endif | |
75 | ||
ee7118a8 DD |
76 | struct pid_status { |
77 | pid_t pid; | |
84e6d6fd | 78 | int status; |
ee7118a8 DD |
79 | } pid_stat_table[MAXCHILDPROCS]; |
80 | ||
33c4b445 WD |
81 | static time_t starttime, endtime; |
82 | static int64 total_read, total_written; | |
83 | ||
e5a2b854 | 84 | static void show_malloc_stats(void); |
82980a23 | 85 | |
97d8e709 WD |
86 | /* Works like waitpid(), but if we already harvested the child pid in our |
87 | * sigchld_handler(), we succeed instead of returning an error. */ | |
88 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) | |
82980a23 | 89 | { |
97d8e709 | 90 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 91 | |
6fb812f7 | 92 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 WD |
93 | /* Status of requested child no longer available: check to |
94 | * see if it was processed by sigchld_handler(). */ | |
95 | int cnt; | |
84e6d6fd | 96 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 97 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 98 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 99 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 100 | return pid; |
ee7118a8 DD |
101 | } |
102 | } | |
103 | } | |
104 | ||
97d8e709 WD |
105 | return waited_pid; |
106 | } | |
107 | ||
108 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 109 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
110 | { |
111 | pid_t waited_pid; | |
112 | int status; | |
113 | ||
114 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
115 | msleep(20); | |
116 | io_flush(FULL_FLUSH); | |
117 | } | |
118 | ||
d9c7edf6 WD |
119 | /* TODO: If the child exited on a signal, then log an |
120 | * appropriate error message. Perhaps we should also accept a | |
121 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 122 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
123 | if (waited_pid < 0) { |
124 | rsyserr(FERROR, errno, "waitpid"); | |
125 | *exit_code_ptr = RERR_WAITCHILD; | |
126 | } else if (!WIFEXITED(status)) { | |
40e6752f | 127 | #ifdef WCOREDUMP |
dbefb6b4 | 128 | if (WCOREDUMP(status)) |
84e6d6fd | 129 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
130 | else |
131 | #endif | |
132 | if (WIFSIGNALED(status)) | |
84e6d6fd | 133 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 134 | else |
84e6d6fd | 135 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 136 | } else |
84e6d6fd | 137 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
138 | } |
139 | ||
b9f592fb WD |
140 | /* This function gets called from all 3 processes. We want the client side |
141 | * to actually output the text, but the sender is the only process that has | |
142 | * all the stats we need. So, if we're a client sender, we do the report. | |
143 | * If we're a server sender, we write the stats on the supplied fd. If | |
144 | * we're the client receiver we read the stats from the supplied fd and do | |
145 | * the report. All processes might also generate a set of debug stats, if | |
146 | * the verbose level is high enough (this is the only thing that the | |
147 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 148 | static void handle_stats(int f) |
c627d613 | 149 | { |
33c4b445 WD |
150 | endtime = time(NULL); |
151 | ||
b9f592fb | 152 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
153 | total_read = stats.total_read; |
154 | total_written = stats.total_written; | |
7a6421fa | 155 | |
7bb7058e | 156 | if (do_stats && verbose > 1) { |
5c15e29f | 157 | /* These come out from every process */ |
7bb7058e | 158 | show_malloc_stats(); |
86943126 | 159 | show_flist_stats(); |
5c15e29f MP |
160 | } |
161 | ||
e5fbaa71 S |
162 | if (am_generator) |
163 | return; | |
164 | ||
248fbb8c | 165 | if (am_daemon) { |
a9766ef1 | 166 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
167 | if (f == -1 || !am_sender) |
168 | return; | |
248fbb8c AT |
169 | } |
170 | ||
e19452a9 | 171 | if (am_server) { |
3e491682 | 172 | if (am_sender) { |
b9f592fb WD |
173 | write_longint(f, total_read); |
174 | write_longint(f, total_written); | |
175 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
176 | if (protocol_version >= 29) { |
177 | write_longint(f, stats.flist_buildtime); | |
178 | write_longint(f, stats.flist_xfertime); | |
179 | } | |
e19452a9 | 180 | } |
7a6421fa AT |
181 | return; |
182 | } | |
e19452a9 DD |
183 | |
184 | /* this is the client */ | |
d9c7edf6 | 185 | |
9d19f8a5 WD |
186 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
187 | ; | |
188 | else if (!am_sender) { | |
58c5c245 WD |
189 | /* Read the first two in opposite order because the meaning of |
190 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
191 | total_written = read_longint(f); |
192 | total_read = read_longint(f); | |
a800434a | 193 | stats.total_size = read_longint(f); |
f0f7e760 WD |
194 | if (protocol_version >= 29) { |
195 | stats.flist_buildtime = read_longint(f); | |
196 | stats.flist_xfertime = read_longint(f); | |
197 | } | |
e4676bb5 | 198 | } else if (write_batch) { |
b9f592fb WD |
199 | /* The --read-batch process is going to be a client |
200 | * receiver, so we need to give it the stats. */ | |
201 | write_longint(batch_fd, total_read); | |
202 | write_longint(batch_fd, total_written); | |
203 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
204 | if (protocol_version >= 29) { |
205 | write_longint(batch_fd, stats.flist_buildtime); | |
206 | write_longint(batch_fd, stats.flist_xfertime); | |
207 | } | |
a800434a | 208 | } |
e4676bb5 | 209 | } |
a800434a | 210 | |
e4676bb5 WD |
211 | static void output_summary(void) |
212 | { | |
a800434a | 213 | if (do_stats) { |
1f658d42 | 214 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
215 | rprintf(FINFO,"Number of files transferred: %d\n", |
216 | stats.num_transferred_files); | |
60613dc8 WD |
217 | rprintf(FINFO,"Total file size: %s bytes\n", |
218 | human_num(stats.total_size)); | |
219 | rprintf(FINFO,"Total transferred file size: %s bytes\n", | |
220 | human_num(stats.total_transferred_size)); | |
221 | rprintf(FINFO,"Literal data: %s bytes\n", | |
222 | human_num(stats.literal_data)); | |
223 | rprintf(FINFO,"Matched data: %s bytes\n", | |
224 | human_num(stats.matched_data)); | |
1f658d42 | 225 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
226 | if (stats.flist_buildtime) { |
227 | rprintf(FINFO, | |
228 | "File list generation time: %.3f seconds\n", | |
229 | (double)stats.flist_buildtime / 1000); | |
230 | rprintf(FINFO, | |
231 | "File list transfer time: %.3f seconds\n", | |
232 | (double)stats.flist_xfertime / 1000); | |
233 | } | |
60613dc8 WD |
234 | rprintf(FINFO,"Total bytes sent: %s\n", |
235 | human_num(total_written)); | |
236 | rprintf(FINFO,"Total bytes received: %s\n", | |
237 | human_num(total_read)); | |
7a6421fa | 238 | } |
d9c7edf6 | 239 | |
e19452a9 | 240 | if (verbose || do_stats) { |
b9f592fb | 241 | rprintf(FINFO, |
60613dc8 WD |
242 | "\nsent %s bytes received %s bytes %s bytes/sec\n", |
243 | human_num(total_written), human_num(total_read), | |
244 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
245 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
246 | human_num(stats.total_size), | |
b9f592fb | 247 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 248 | } |
fc8a6b97 AT |
249 | |
250 | fflush(stdout); | |
251 | fflush(stderr); | |
c627d613 AT |
252 | } |
253 | ||
254 | ||
e5a2b854 MP |
255 | /** |
256 | * If our C library can get malloc statistics, then show them to FINFO | |
257 | **/ | |
258 | static void show_malloc_stats(void) | |
259 | { | |
4f5b0756 | 260 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
261 | struct mallinfo mi; |
262 | ||
263 | mi = mallinfo(); | |
264 | ||
ce672562 | 265 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
266 | getpid(), am_server ? "server " : "", |
267 | am_daemon ? "daemon " : "", who_am_i()); | |
268 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
269 | (long)mi.arena); | |
270 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
271 | (long)mi.ordblks); | |
272 | rprintf(FINFO, " smblks: %10ld\n", | |
273 | (long)mi.smblks); | |
274 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
275 | (long)mi.hblks); | |
276 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
277 | (long)mi.hblkhd); | |
278 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
279 | (long)mi.arena + mi.hblkhd); | |
280 | rprintf(FINFO, " usmblks: %10ld\n", | |
281 | (long)mi.usmblks); | |
282 | rprintf(FINFO, " fsmblks: %10ld\n", | |
283 | (long)mi.fsmblks); | |
284 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
285 | (long)mi.uordblks); | |
286 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
287 | (long)mi.fordblks); | |
288 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
289 | (long)mi.keepcost); | |
e5a2b854 MP |
290 | #endif /* HAVE_MALLINFO */ |
291 | } | |
292 | ||
293 | ||
0882faa2 | 294 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
295 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
296 | int *f_in, int *f_out) | |
c627d613 | 297 | { |
6c2e5b56 | 298 | int i, argc = 0; |
887e553f | 299 | char *args[MAX_ARGS]; |
19b27a48 | 300 | pid_t ret; |
82f0c63e | 301 | char *dir = NULL; |
bb4aa89c | 302 | int dash_l_set = 0; |
366345fe | 303 | |
088aac85 | 304 | if (!read_batch && !local_server) { |
82f0c63e | 305 | char *t, *f, in_quote = '\0'; |
9af87151 | 306 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 307 | if (!cmd) |
9af87151 | 308 | cmd = rsh_env; |
366345fe AT |
309 | if (!cmd) |
310 | cmd = RSYNC_RSH; | |
311 | cmd = strdup(cmd); | |
d9c7edf6 | 312 | if (!cmd) |
366345fe AT |
313 | goto oom; |
314 | ||
82f0c63e WD |
315 | for (t = f = cmd; *f; f++) { |
316 | if (*f == ' ') | |
317 | continue; | |
e7a392c7 | 318 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 319 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 320 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
321 | exit_cleanup(RERR_SYNTAX); |
322 | } | |
82f0c63e WD |
323 | args[argc++] = t; |
324 | while (*f != ' ' || in_quote) { | |
325 | if (!*f) { | |
326 | if (in_quote) { | |
327 | rprintf(FERROR, | |
328 | "Missing trailing-%c in remote-shell command.\n", | |
329 | in_quote); | |
330 | exit_cleanup(RERR_SYNTAX); | |
331 | } | |
332 | f--; | |
333 | break; | |
334 | } | |
335 | if (*f == '\'' || *f == '"') { | |
336 | if (!in_quote) { | |
337 | in_quote = *f++; | |
338 | continue; | |
339 | } | |
340 | if (*f == in_quote && *++f != in_quote) { | |
341 | in_quote = '\0'; | |
342 | continue; | |
343 | } | |
344 | } | |
345 | *t++ = *f++; | |
346 | } | |
347 | *t++ = '\0'; | |
887e553f | 348 | } |
c627d613 | 349 | |
d9c7edf6 | 350 | /* check to see if we've already been given '-l user' in |
9af87151 | 351 | * the remote-shell command */ |
bb4aa89c WD |
352 | for (i = 0; i < argc-1; i++) { |
353 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
354 | dash_l_set = 1; | |
355 | } | |
356 | ||
4f5b0756 | 357 | #ifdef HAVE_REMSH |
366345fe AT |
358 | /* remsh (on HPUX) takes the arguments the other way around */ |
359 | args[argc++] = machine; | |
bb4aa89c | 360 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
361 | args[argc++] = "-l"; |
362 | args[argc++] = user; | |
363 | } | |
7b8356d0 | 364 | #else |
bb4aa89c | 365 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
366 | args[argc++] = "-l"; |
367 | args[argc++] = user; | |
368 | } | |
369 | args[argc++] = machine; | |
7b8356d0 | 370 | #endif |
c627d613 | 371 | |
366345fe | 372 | args[argc++] = rsync_path; |
c627d613 | 373 | |
9af87151 | 374 | if (blocking_io < 0) { |
90e22f4b WD |
375 | char *cp; |
376 | if ((cp = strrchr(cmd, '/')) != NULL) | |
377 | cp++; | |
378 | else | |
379 | cp = cmd; | |
380 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
381 | blocking_io = 1; | |
66b71163 | 382 | } |
e384bfbd | 383 | |
93689aa5 | 384 | server_options(args,&argc); |
e7a392c7 WD |
385 | |
386 | if (argc >= MAX_ARGS - 2) { | |
387 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
388 | exit_cleanup(RERR_SYNTAX); | |
389 | } | |
366345fe | 390 | } |
c627d613 | 391 | |
366345fe | 392 | args[argc++] = "."; |
76076c4b | 393 | |
d9c7edf6 | 394 | if (!daemon_over_rsh && path && *path) |
366345fe | 395 | args[argc++] = path; |
c627d613 | 396 | |
366345fe | 397 | args[argc] = NULL; |
c627d613 | 398 | |
366345fe | 399 | if (verbose > 3) { |
e7a392c7 | 400 | for (i = 0; i < argc; i++) |
45c49b52 | 401 | rprintf(FINFO, "cmd[%d]=%s ", i, args[i]); |
82f0c63e | 402 | rprintf(FINFO, "\n"); |
366345fe AT |
403 | } |
404 | ||
c0d8e84c WD |
405 | if (read_batch) { |
406 | int from_gen_pipe[2]; | |
407 | if (fd_pair(from_gen_pipe) < 0) { | |
408 | rsyserr(FERROR, errno, "pipe"); | |
409 | exit_cleanup(RERR_IPC); | |
410 | } | |
411 | batch_gen_fd = from_gen_pipe[0]; | |
412 | *f_out = from_gen_pipe[1]; | |
413 | *f_in = batch_fd; | |
414 | ret = -1; /* no child pid */ | |
415 | } else if (local_server) { | |
b1df18d7 WD |
416 | /* If the user didn't request --[no-]whole-file, force |
417 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 418 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 419 | whole_file = 1; |
25d34a5c | 420 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 421 | } else |
366345fe | 422 | ret = piped_child(args,f_in,f_out); |
c627d613 | 423 | |
3a69fad0 WD |
424 | if (dir) |
425 | free(dir); | |
82306bf6 | 426 | |
366345fe | 427 | return ret; |
c627d613 | 428 | |
acee11fc | 429 | oom: |
366345fe AT |
430 | out_of_memory("do_cmd"); |
431 | return 0; /* not reached */ | |
c627d613 AT |
432 | } |
433 | ||
eb598fac WD |
434 | /* The receiving side operates in one of two modes: |
435 | * | |
436 | * 1. it enters a directory and receives one or more files, placing them | |
437 | * according to their names in the file-list. | |
438 | * | |
439 | * 2. it receives a single file and saves it using the name in the | |
440 | * destination path instead of its file-list name. This requires a | |
441 | * "local name" for writing out the destination file. | |
442 | * | |
443 | * So, our task is to figure out what mode/local-name we need and return | |
444 | * either a NULL for mode 1, or the local-name for mode 2. We also | |
445 | * change directory if there are any path components in dest_path. */ | |
446 | static char *get_local_name(struct file_list *flist, char *dest_path) | |
c627d613 | 447 | { |
7a6421fa | 448 | STRUCT_STAT st; |
eb598fac | 449 | char *cp; |
c627d613 | 450 | |
eb598fac WD |
451 | if (verbose > 2) { |
452 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
453 | flist->count, NS(dest_path)); | |
454 | } | |
1f0610ef | 455 | |
eb598fac | 456 | if (!dest_path) |
1f0610ef | 457 | return NULL; |
c95da96a | 458 | |
eb598fac WD |
459 | /* If the destination path refers to an existing directory, enter |
460 | * it and use mode 1. If there is something other than a directory | |
461 | * at the destination path, we must be transferring one file | |
462 | * (anything at the destination will be overwritten). */ | |
463 | if (do_stat(dest_path, &st) == 0) { | |
1ff5450d | 464 | if (S_ISDIR(st.st_mode)) { |
eb598fac | 465 | if (!push_dir(dest_path)) { |
982e05bb | 466 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 467 | full_fname(dest_path)); |
65417579 | 468 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
469 | } |
470 | return NULL; | |
471 | } | |
472 | if (flist->count > 1) { | |
eb598fac WD |
473 | rprintf(FERROR, |
474 | "ERROR: destination must be a directory when" | |
475 | " copying more than 1 file\n"); | |
65417579 | 476 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 477 | } |
1ff5450d AT |
478 | } |
479 | ||
eb598fac WD |
480 | cp = strrchr(dest_path, '/'); |
481 | ||
482 | /* If the destination path ends in a slash or we are transferring | |
483 | * multiple files, create a directory at the destination path, | |
484 | * enter the new directory, and use mode 1. */ | |
485 | if (flist->count > 1 || (cp && !cp[1])) { | |
486 | /* Lop off the final slash (if any). */ | |
487 | if (cp && !cp[1]) | |
488 | *cp = '\0'; | |
489 | ||
490 | umask(orig_umask); | |
491 | if (do_mkdir(dest_path, 0777) != 0) { | |
492 | rsyserr(FERROR, errno, "mkdir %s failed", | |
493 | full_fname(dest_path)); | |
494 | exit_cleanup(RERR_FILEIO); | |
495 | } | |
496 | umask(0); | |
1ff5450d | 497 | |
eb598fac WD |
498 | if (verbose) |
499 | rprintf(FINFO, "created directory %s\n", dest_path); | |
500 | ||
501 | if (dry_run) { | |
502 | /* Indicate that the destination directory doesn't | |
503 | * really exist and return mode 1. */ | |
504 | dry_run++; | |
505 | return NULL; | |
506 | } | |
507 | ||
508 | if (!push_dir(dest_path)) { | |
509 | rsyserr(FERROR, errno, "push_dir#2 %s failed", | |
510 | full_fname(dest_path)); | |
511 | exit_cleanup(RERR_FILESELECT); | |
512 | } | |
e5a96f0f | 513 | |
e5a96f0f | 514 | return NULL; |
1ff5450d AT |
515 | } |
516 | ||
eb598fac WD |
517 | /* Otherwise, we are writing a single file, possibly on top of an |
518 | * existing non-directory. Change to the item's parent directory | |
519 | * (if it has a path component), return the basename of the | |
520 | * destination file as the local name, and use mode 2. */ | |
521 | if (!cp) | |
522 | return dest_path; | |
523 | ||
524 | if (cp == dest_path) | |
525 | dest_path = "/"; | |
526 | ||
527 | *cp = '\0'; | |
528 | if (!push_dir(dest_path)) { | |
529 | rsyserr(FERROR, errno, "push_dir#3 %s failed", | |
530 | full_fname(dest_path)); | |
65417579 | 531 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 532 | } |
eb598fac | 533 | *cp = '/'; |
1ff5450d | 534 | |
eb598fac | 535 | return cp + 1; |
c627d613 AT |
536 | } |
537 | ||
538 | ||
1a8e5c97 | 539 | /* This is only called by the sender. */ |
3485ae83 | 540 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 541 | { |
1a8e5c97 WD |
542 | int i; |
543 | ||
544 | if (protocol_version < 29) | |
545 | i = read_int(f_in); | |
546 | else { | |
3485ae83 | 547 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
548 | && read_shortint(f_in) == ITEM_IS_NEW) { |
549 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 550 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
551 | write_shortint(f_out, ITEM_IS_NEW); |
552 | } | |
4e0fcd85 WD |
553 | } |
554 | ||
1a8e5c97 | 555 | if (i != -1) { |
c7791b8c WD |
556 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
557 | i, who_am_i()); | |
1a8e5c97 | 558 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
559 | } |
560 | } | |
561 | ||
562 | ||
eb598fac | 563 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 564 | { |
7a6421fa AT |
565 | struct file_list *flist; |
566 | char *dir = argv[0]; | |
c627d613 | 567 | |
45e08edb WD |
568 | if (verbose > 2) { |
569 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
570 | (long)getpid()); | |
571 | } | |
d9c7edf6 | 572 | |
2adbcdc7 | 573 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
574 | rprintf(FERROR, "ERROR: module is write only\n"); |
575 | exit_cleanup(RERR_SYNTAX); | |
576 | return; | |
577 | } | |
bf26aa22 WD |
578 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
579 | rprintf(FERROR, | |
580 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
581 | exit_cleanup(RERR_SYNTAX); | |
582 | return; | |
583 | } | |
7a92ded3 | 584 | |
59187666 | 585 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
586 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
587 | full_fname(dir)); | |
65417579 | 588 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
589 | } |
590 | argc--; | |
591 | argv++; | |
d9c7edf6 | 592 | |
48a1ff0d | 593 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 594 | argc = 1; |
7a6421fa AT |
595 | argv--; |
596 | argv[0] = "."; | |
597 | } | |
d9c7edf6 | 598 | |
7a6421fa | 599 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
600 | if (!flist || flist->count == 0) { |
601 | exit_cleanup(0); | |
602 | } | |
a00628b3 | 603 | the_file_list = flist; |
8d9dc9f9 | 604 | |
da3478b2 WD |
605 | io_start_buffering_in(); |
606 | io_start_buffering_out(); | |
607 | ||
7a6421fa | 608 | send_files(flist,f_out,f_in); |
f1e3656e | 609 | io_flush(FULL_FLUSH); |
33c4b445 | 610 | handle_stats(f_out); |
4e0fcd85 | 611 | if (protocol_version >= 24) |
3485ae83 | 612 | read_final_goodbye(f_in, f_out); |
f1e3656e | 613 | io_flush(FULL_FLUSH); |
7a6421fa | 614 | exit_cleanup(0); |
c627d613 AT |
615 | } |
616 | ||
617 | ||
dc5ddbcc AT |
618 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
619 | { | |
d186eb1a | 620 | int pid; |
84e6d6fd | 621 | int exit_code = 0; |
c70e07d9 | 622 | int error_pipe[2]; |
dc5ddbcc | 623 | |
bb6721dc WD |
624 | /* The receiving side mustn't obey this, or an existing symlink that |
625 | * points to an identical file won't be replaced by the referent. */ | |
626 | copy_links = 0; | |
627 | ||
d186eb1a | 628 | if (preserve_hard_links) |
3485ae83 | 629 | init_hard_links(); |
dc5ddbcc | 630 | |
c70e07d9 | 631 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 632 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 633 | exit_cleanup(RERR_IPC); |
554e0a8d | 634 | } |
d9c7edf6 | 635 | |
f1e3656e | 636 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 637 | |
ba449e44 | 638 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 639 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
640 | exit_cleanup(RERR_IPC); |
641 | } | |
642 | ||
643 | if (pid == 0) { | |
554e0a8d | 644 | close(error_pipe[0]); |
3a69fad0 WD |
645 | if (f_in != f_out) |
646 | close(f_out); | |
e08c9610 | 647 | |
554e0a8d | 648 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 649 | close_multiplexing_out(); |
554e0a8d AT |
650 | |
651 | /* set place to send errors */ | |
f1e3656e | 652 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 653 | |
c70e07d9 | 654 | recv_files(f_in, flist, local_name); |
f1e3656e | 655 | io_flush(FULL_FLUSH); |
33c4b445 | 656 | handle_stats(f_in); |
e08c9610 | 657 | |
f1e3656e WD |
658 | send_msg(MSG_DONE, "", 0); |
659 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 660 | |
40df65fd WD |
661 | /* Handle any keep-alive packets from the post-processing work |
662 | * that the generator does. */ | |
4e0fcd85 | 663 | if (protocol_version >= 29) { |
051182cb | 664 | kluge_around_eof = -1; |
1a8e5c97 WD |
665 | |
666 | /* This should only get stopped via a USR2 signal. */ | |
667 | while (read_int(f_in) == flist->count | |
668 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
669 | ||
3485ae83 WD |
670 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
671 | who_am_i()); | |
1a8e5c97 | 672 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
673 | } |
674 | ||
9e0582f9 WD |
675 | /* Finally, we go to sleep until our parent kills us with a |
676 | * USR2 signal. We sleep for a short time, as on some OSes | |
677 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
678 | while (1) |
679 | msleep(20); | |
d186eb1a | 680 | } |
dc5ddbcc | 681 | |
b695f242 | 682 | am_generator = 1; |
9eeb3b9c | 683 | close_multiplexing_in(); |
e8a96e27 | 684 | if (write_batch && !am_server) |
b9f592fb | 685 | stop_write_batch(); |
b695f242 | 686 | |
554e0a8d | 687 | close(error_pipe[1]); |
3a69fad0 WD |
688 | if (f_in != f_out) |
689 | close(f_in); | |
e1b3d5c4 | 690 | |
da3478b2 | 691 | io_start_buffering_out(); |
b3e10ed7 | 692 | |
f1e3656e | 693 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 694 | |
c70e07d9 | 695 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 696 | |
33c4b445 | 697 | handle_stats(-1); |
f1e3656e | 698 | io_flush(FULL_FLUSH); |
d04e9c51 | 699 | if (protocol_version >= 24) { |
8ada7518 AT |
700 | /* send a final goodbye message */ |
701 | write_int(f_out, -1); | |
702 | } | |
f1e3656e | 703 | io_flush(FULL_FLUSH); |
8ada7518 | 704 | |
f1e3656e | 705 | set_msg_fd_in(-1); |
089a2435 | 706 | kill(pid, SIGUSR2); |
84e6d6fd WD |
707 | wait_process_with_flush(pid, &exit_code); |
708 | return exit_code; | |
dc5ddbcc AT |
709 | } |
710 | ||
c627d613 | 711 | |
9486289c | 712 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 713 | { |
84e6d6fd | 714 | int exit_code; |
7a6421fa | 715 | struct file_list *flist; |
6c2e5b56 | 716 | char *local_name = NULL; |
7a6421fa | 717 | char *dir = NULL; |
07bff66f WD |
718 | int save_verbose = verbose; |
719 | ||
720 | if (filesfrom_fd >= 0) { | |
721 | /* We can't mix messages with files-from data on the socket, | |
722 | * so temporarily turn off verbose messages. */ | |
723 | verbose = 0; | |
724 | } | |
f0fca04e | 725 | |
45e08edb WD |
726 | if (verbose > 2) { |
727 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
728 | argc, (long)getpid()); | |
729 | } | |
09b7f5db | 730 | |
2adbcdc7 | 731 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
732 | rprintf(FERROR,"ERROR: module is read only\n"); |
733 | exit_cleanup(RERR_SYNTAX); | |
734 | return; | |
735 | } | |
736 | ||
7a6421fa AT |
737 | if (argc > 0) { |
738 | dir = argv[0]; | |
739 | argc--; | |
740 | argv++; | |
59187666 | 741 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
742 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
743 | full_fname(dir)); | |
65417579 | 744 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 745 | } |
7a6421fa | 746 | } |
c627d613 | 747 | |
da3478b2 | 748 | io_start_buffering_in(); |
57dee64e | 749 | recv_filter_list(f_in); |
c627d613 | 750 | |
7c2a9e76 | 751 | if (filesfrom_fd >= 0) { |
07bff66f WD |
752 | /* We need to send the files-from names to the sender at the |
753 | * same time that we receive the file-list from them, so we | |
754 | * need the IO routines to automatically write out the names | |
755 | * onto our f_out socket as we read the file-list. This | |
756 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
757 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
758 | filesfrom_fd = -1; | |
759 | } | |
760 | ||
b9f592fb | 761 | flist = recv_file_list(f_in); |
07bff66f | 762 | verbose = save_verbose; |
4c36a13e AT |
763 | if (!flist) { |
764 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 765 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 766 | } |
a00628b3 | 767 | the_file_list = flist; |
d9c7edf6 | 768 | |
29fad7a3 | 769 | if (argc > 0) |
7a6421fa | 770 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 771 | |
84e6d6fd WD |
772 | exit_code = do_recv(f_in,f_out,flist,local_name); |
773 | exit_cleanup(exit_code); | |
c627d613 AT |
774 | } |
775 | ||
776 | ||
734a94a2 | 777 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
778 | { |
779 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 780 | return 0; |
25d34a5c MP |
781 | } |
782 | ||
783 | ||
9486289c | 784 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 785 | { |
f0359dd0 AT |
786 | set_nonblocking(f_in); |
787 | set_nonblocking(f_out); | |
788 | ||
da3478b2 WD |
789 | io_set_sock_fds(f_in, f_out); |
790 | setup_protocol(f_out, f_in); | |
791 | ||
d04e9c51 | 792 | if (protocol_version >= 23) |
da3478b2 | 793 | io_start_multiplex_out(); |
7a6421fa | 794 | |
7a6421fa | 795 | if (am_sender) { |
83926d3c | 796 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
797 | if (need_messages_from_generator) |
798 | io_start_multiplex_in(); | |
9b3318b0 | 799 | |
7842418b | 800 | recv_filter_list(f_in); |
7a6421fa AT |
801 | do_server_sender(f_in, f_out, argc, argv); |
802 | } else { | |
803 | do_server_recv(f_in, f_out, argc, argv); | |
804 | } | |
805 | exit_cleanup(0); | |
366345fe AT |
806 | } |
807 | ||
0ba48136 MP |
808 | |
809 | /* | |
810 | * This is called once the connection has been negotiated. It is used | |
811 | * for rsyncd, remote-shell, and local connections. | |
812 | */ | |
19b27a48 | 813 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 814 | { |
088aac85 | 815 | struct file_list *flist = NULL; |
84e6d6fd | 816 | int exit_code = 0, exit_code2 = 0; |
9486289c | 817 | char *local_name = NULL; |
19b27a48 AT |
818 | |
819 | cleanup_child_pid = pid; | |
67a28eb2 | 820 | if (!read_batch) { |
b9f592fb WD |
821 | set_nonblocking(f_in); |
822 | set_nonblocking(f_out); | |
823 | } | |
f0359dd0 | 824 | |
da3478b2 | 825 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
826 | setup_protocol(f_out,f_in); |
827 | ||
b9f592fb | 828 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 829 | io_start_multiplex_in(); |
d9c7edf6 | 830 | |
18882701 WD |
831 | /* We set our stderr file handle to blocking because ssh might have |
832 | * set it to non-blocking. This can be particularly troublesome if | |
833 | * stderr is a clone of stdout, because ssh would have set our stdout | |
834 | * to non-blocking at the same time (which can easily cause us to lose | |
835 | * output from our print statements). This kluge shouldn't cause ssh | |
836 | * any problems for how we use it. Note also that we delayed setting | |
837 | * this until after the above protocol setup so that we know for sure | |
838 | * that ssh is done twiddling its file descriptors. */ | |
839 | set_blocking(STDERR_FILENO); | |
840 | ||
9486289c | 841 | if (am_sender) { |
83926d3c | 842 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 843 | io_start_buffering_out(); |
860236bf | 844 | if (!filesfrom_host) |
a0a33ee5 | 845 | set_msg_fd_in(f_in); |
57dee64e | 846 | send_filter_list(f_out); |
860236bf | 847 | if (filesfrom_host) |
7c2a9e76 | 848 | filesfrom_fd = f_in; |
b9f592fb | 849 | |
e8a96e27 | 850 | if (write_batch && !am_server) |
b9f592fb | 851 | start_write_batch(f_out); |
a00628b3 | 852 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 853 | set_msg_fd_in(-1); |
d9c7edf6 | 854 | if (verbose > 3) |
9486289c | 855 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 856 | the_file_list = flist; |
e1b3d5c4 | 857 | |
f1e3656e | 858 | io_flush(NORMAL_FLUSH); |
9486289c | 859 | send_files(flist,f_out,f_in); |
f1e3656e | 860 | io_flush(FULL_FLUSH); |
33c4b445 | 861 | handle_stats(-1); |
4e0fcd85 | 862 | if (protocol_version >= 24) |
3485ae83 | 863 | read_final_goodbye(f_in, f_out); |
9486289c AT |
864 | if (pid != -1) { |
865 | if (verbose > 3) | |
08a740ff | 866 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 867 | io_flush(FULL_FLUSH); |
84e6d6fd | 868 | wait_process_with_flush(pid, &exit_code); |
9486289c | 869 | } |
33c4b445 | 870 | output_summary(); |
c87ae64a | 871 | io_flush(FULL_FLUSH); |
84e6d6fd | 872 | exit_cleanup(exit_code); |
9486289c | 873 | } |
f7632fc6 | 874 | |
bf26aa22 WD |
875 | if (need_messages_from_generator && !read_batch) |
876 | io_start_multiplex_out(); | |
877 | ||
48a1ff0d WD |
878 | if (argc == 0) |
879 | list_only |= 1; | |
d9c7edf6 | 880 | |
57dee64e | 881 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 882 | |
7c2a9e76 WD |
883 | if (filesfrom_fd >= 0) { |
884 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
885 | filesfrom_fd = -1; | |
886 | } | |
887 | ||
e8a96e27 | 888 | if (write_batch && !am_server) |
b9f592fb | 889 | start_write_batch(f_in); |
9486289c | 890 | flist = recv_file_list(f_in); |
a00628b3 | 891 | the_file_list = flist; |
d9c7edf6 | 892 | |
9d19f8a5 WD |
893 | if (flist && flist->count > 0) { |
894 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 895 | |
84e6d6fd | 896 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
897 | } else { |
898 | handle_stats(-1); | |
899 | output_summary(); | |
900 | } | |
d9c7edf6 | 901 | |
9486289c | 902 | if (pid != -1) { |
8d9dc9f9 | 903 | if (verbose > 3) |
08a740ff | 904 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 905 | io_flush(FULL_FLUSH); |
84e6d6fd | 906 | wait_process_with_flush(pid, &exit_code); |
9486289c | 907 | } |
d9c7edf6 | 908 | |
84e6d6fd | 909 | return MAX(exit_code, exit_code2); |
9486289c AT |
910 | } |
911 | ||
7169bb4a MP |
912 | static int copy_argv (char *argv[]) |
913 | { | |
914 | int i; | |
915 | ||
916 | for (i = 0; argv[i]; i++) { | |
917 | if (!(argv[i] = strdup(argv[i]))) { | |
918 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
919 | __FILE__, __LINE__); | |
920 | return RERR_MALLOC; | |
921 | } | |
922 | } | |
923 | ||
924 | return 0; | |
925 | } | |
926 | ||
927 | ||
c1a04ecb | 928 | /** |
0ba48136 MP |
929 | * Start a client for either type of remote connection. Work out |
930 | * whether the arguments request a remote shell or rsyncd connection, | |
931 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
932 | * |
933 | * Calls either start_socket_client (for sockets) or do_cmd and | |
934 | * client_run (for ssh). | |
c1a04ecb | 935 | **/ |
fc8a6b97 | 936 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
937 | { |
938 | char *p; | |
939 | char *shell_machine = NULL; | |
940 | char *shell_path = NULL; | |
941 | char *shell_user = NULL; | |
19b27a48 AT |
942 | int ret; |
943 | pid_t pid; | |
5d6bcd44 | 944 | int f_in,f_out; |
7169bb4a MP |
945 | int rc; |
946 | ||
947 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 948 | * command line. */ |
75aeac44 | 949 | if ((rc = copy_argv(argv))) |
7169bb4a | 950 | return rc; |
5d6bcd44 | 951 | |
d16c245f | 952 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 953 | argc--; |
860236bf WD |
954 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
955 | if (shell_path) { /* source is remote */ | |
9425918d WD |
956 | char *dummy1; |
957 | int dummy2; | |
3f7bfac2 | 958 | if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { |
9425918d WD |
959 | rprintf(FERROR, |
960 | "The source and destination cannot both be remote.\n"); | |
961 | exit_cleanup(RERR_SYNTAX); | |
962 | } | |
42ccb4c0 | 963 | argv++; |
860236bf WD |
964 | if (filesfrom_host && *filesfrom_host |
965 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 966 | rprintf(FERROR, |
50b31539 | 967 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
968 | exit_cleanup(RERR_SYNTAX); |
969 | } | |
860236bf | 970 | if (rsync_port) { |
d9c7edf6 | 971 | if (!shell_cmd) { |
860236bf WD |
972 | return start_socket_client(shell_machine, |
973 | shell_path, | |
42ccb4c0 | 974 | argc, argv); |
d9c7edf6 | 975 | } |
d9c7edf6 | 976 | daemon_over_rsh = 1; |
75aeac44 | 977 | } |
3591c066 | 978 | |
42ccb4c0 WD |
979 | am_sender = 0; |
980 | } else { /* source is local, check dest arg */ | |
981 | am_sender = 1; | |
982 | ||
d16c245f | 983 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
984 | usage(FERROR); |
985 | exit_cleanup(RERR_SYNTAX); | |
986 | } | |
a125c82a | 987 | |
42ccb4c0 | 988 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
989 | if (shell_path && filesfrom_host && *filesfrom_host |
990 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 991 | rprintf(FERROR, |
50b31539 | 992 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
993 | exit_cleanup(RERR_SYNTAX); |
994 | } | |
860236bf | 995 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 996 | local_server = 1; |
860236bf | 997 | if (filesfrom_host) { |
7c2a9e76 | 998 | rprintf(FERROR, |
50b31539 | 999 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1000 | exit_cleanup(RERR_SYNTAX); |
1001 | } | |
860236bf | 1002 | shell_machine = NULL; |
42ccb4c0 | 1003 | shell_path = argv[argc]; |
860236bf | 1004 | } else if (rsync_port) { |
d9c7edf6 | 1005 | if (!shell_cmd) { |
860236bf WD |
1006 | return start_socket_client(shell_machine, |
1007 | shell_path, | |
42ccb4c0 | 1008 | argc, argv); |
d9c7edf6 | 1009 | } |
d9c7edf6 | 1010 | daemon_over_rsh = 1; |
a125c82a | 1011 | } |
5d6bcd44 | 1012 | } |
d16c245f | 1013 | } else { /* read_batch */ |
d9c7edf6 WD |
1014 | local_server = 1; |
1015 | shell_path = argv[argc-1]; | |
860236bf | 1016 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1017 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1018 | exit_cleanup(RERR_SYNTAX); | |
1019 | } | |
6902ed17 MP |
1020 | } |
1021 | ||
5d6bcd44 | 1022 | if (shell_machine) { |
6fc048f4 | 1023 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1024 | if (p) { |
1025 | *p = 0; | |
1026 | shell_user = shell_machine; | |
1027 | shell_machine = p+1; | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | if (verbose > 3) { | |
9486289c | 1032 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1033 | shell_cmd ? shell_cmd : "", |
1034 | shell_machine ? shell_machine : "", | |
1035 | shell_user ? shell_user : "", | |
1036 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1037 | } |
d9c7edf6 | 1038 | |
d16c245f | 1039 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1040 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1041 | usage(FERROR); |
65417579 | 1042 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1043 | } |
27e3e9c9 | 1044 | |
d16c245f | 1045 | /* ... or no dest at all */ |
48a1ff0d WD |
1046 | if (!am_sender && argc == 0) |
1047 | list_only |= 1; | |
d9c7edf6 | 1048 | |
75aeac44 WD |
1049 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1050 | &f_in,&f_out); | |
1051 | ||
1052 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1053 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1054 | if (daemon_over_rsh) { |
1055 | int tmpret; | |
1056 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1057 | f_in, f_out, argc); | |
1058 | if (tmpret < 0) | |
1059 | return tmpret; | |
1060 | } | |
1061 | ||
fc8a6b97 AT |
1062 | ret = client_run(f_in, f_out, pid, argc, argv); |
1063 | ||
1064 | fflush(stdout); | |
1065 | fflush(stderr); | |
1066 | ||
1067 | return ret; | |
5d6bcd44 AT |
1068 | } |
1069 | ||
366345fe | 1070 | |
067669da WD |
1071 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1072 | { | |
6bf32edb | 1073 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1074 | } |
1075 | ||
067669da WD |
1076 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1077 | { | |
33c4b445 WD |
1078 | if (!am_server) |
1079 | output_summary(); | |
40df65fd | 1080 | close_all(); |
33c4b445 WD |
1081 | if (log_got_error) |
1082 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1083 | _exit(0); |
1084 | } | |
1085 | ||
067669da WD |
1086 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1087 | { | |
029c1713 | 1088 | #ifdef WNOHANG |
ee7118a8 DD |
1089 | int cnt, status; |
1090 | pid_t pid; | |
1091 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1092 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1093 | * out we're instead saving the child exit statuses for later use. |
1094 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1095 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1096 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1097 | /* save the child's exit status */ |
1098 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1099 | if (pid_stat_table[cnt].pid == 0) { | |
1100 | pid_stat_table[cnt].pid = pid; | |
1101 | pid_stat_table[cnt].status = status; | |
1102 | break; | |
1103 | } | |
1104 | } | |
ee7118a8 | 1105 | } |
029c1713 | 1106 | #endif |
60ee01f5 | 1107 | #if !defined HAVE_SIGACTION && !defined HAVE_SIGPROCMASK |
97d8e709 | 1108 | signal(SIGCHLD, sigchld_handler); |
60ee01f5 | 1109 | #endif |
19b27a48 AT |
1110 | } |
1111 | ||
c0531332 MP |
1112 | |
1113 | /** | |
1114 | * This routine catches signals and tries to send them to gdb. | |
1115 | * | |
1116 | * Because it's called from inside a signal handler it ought not to | |
1117 | * use too many library routines. | |
1118 | * | |
1119 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1120 | * debugging without easy access to X. Perhaps use an environment | |
1121 | * variable, or just call a script? | |
1122 | * | |
1123 | * @todo The /proc/ magic probably only works on Linux (and | |
1124 | * Solaris?) Can we be more portable? | |
1125 | **/ | |
1126 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1127 | const char *get_panic_action(void) |
1128 | { | |
1129 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1130 | ||
1131 | if (cmd_fmt) | |
1132 | return cmd_fmt; | |
1133 | else | |
1134 | return "xterm -display :0 -T Panic -n Panic " | |
1135 | "-e gdb /proc/%d/exe %d"; | |
1136 | } | |
1137 | ||
1138 | ||
9fb3f7a9 MP |
1139 | /** |
1140 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1141 | * | |
1142 | * This signal handler is only installed if we were configured with | |
1143 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1144 | * should just look at the environment variable, but I'm a bit leery | |
1145 | * of a signal sending us into a busy loop. | |
1146 | **/ | |
067669da | 1147 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1148 | { |
1149 | char cmd_buf[300]; | |
1150 | int ret; | |
4fdc39dd MP |
1151 | |
1152 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1153 | getpid(), getpid()); |
1154 | ||
1155 | /* Unless we failed to execute gdb, we allow the process to | |
1156 | * continue. I'm not sure if that's right. */ | |
1157 | ret = system(cmd_buf); | |
1158 | if (ret) | |
1159 | _exit(ret); | |
1160 | } | |
1161 | #endif | |
1162 | ||
1163 | ||
5d6bcd44 | 1164 | int main(int argc,char *argv[]) |
d9c7edf6 | 1165 | { |
ff81e809 | 1166 | int ret; |
66a9dc96 WD |
1167 | int orig_argc = argc; |
1168 | char **orig_argv = argv; | |
60ee01f5 WD |
1169 | #if defined HAVE_SIGACTION && defined HAVE_SIGPROCMASK |
1170 | sigset_t sigmask; | |
5d6bcd44 | 1171 | |
60ee01f5 WD |
1172 | sigemptyset(&sigmask); |
1173 | sigact.sa_flags = SA_NOCLDSTOP; | |
1174 | #endif | |
1175 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1176 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
1177 | SIGACTMASK(SIGCHLD, sigchld_handler); | |
c0531332 | 1178 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1179 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1180 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1181 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1182 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1183 | #endif | |
5d6bcd44 | 1184 | |
7a6421fa | 1185 | starttime = time(NULL); |
6fe05820 | 1186 | am_root = (MY_UID() == 0); |
c627d613 | 1187 | |
a800434a AT |
1188 | memset(&stats, 0, sizeof(stats)); |
1189 | ||
df5e03da AT |
1190 | if (argc < 2) { |
1191 | usage(FERROR); | |
65417579 | 1192 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1193 | } |
1194 | ||
7a6421fa | 1195 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1196 | * carried across */ |
7a6421fa | 1197 | orig_umask = (int)umask(0); |
5d6bcd44 | 1198 | |
eb598fac WD |
1199 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1200 | setlocale(LC_CTYPE, ""); | |
1201 | #endif | |
1202 | ||
50135767 | 1203 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1204 | /* FIXME: We ought to call the same error-handling |
1205 | * code here, rather than relying on getopt. */ | |
50135767 | 1206 | option_error(); |
65417579 | 1207 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1208 | } |
5d6bcd44 | 1209 | |
60ee01f5 WD |
1210 | SIGACTMASK(SIGINT, sig_int); |
1211 | SIGACTMASK(SIGHUP, sig_int); | |
1212 | SIGACTMASK(SIGTERM, sig_int); | |
1213 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1214 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1215 | #endif | |
6b83141d | 1216 | |
34758d5c MP |
1217 | /* Ignore SIGPIPE; we consistently check error codes and will |
1218 | * see the EPIPE. */ | |
60ee01f5 | 1219 | SIGACTION(SIGPIPE, SIG_IGN); |
34758d5c | 1220 | |
c226b7c2 | 1221 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1222 | * (implemented by forking "pwd" and reading its output) doesn't |
1223 | * work when there are other child processes. Also, on all systems | |
1224 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1225 | push_dir(NULL); |
c226b7c2 | 1226 | |
44e9e221 WD |
1227 | init_flist(); |
1228 | ||
e8a96e27 | 1229 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1230 | if (write_batch) |
66a9dc96 | 1231 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1232 | |
dbbab0c4 WD |
1233 | if (read_batch && strcmp(batch_name, "-") == 0) |
1234 | batch_fd = STDIN_FILENO; | |
1235 | else { | |
1236 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1237 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1238 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1239 | } |
b9f592fb WD |
1240 | if (batch_fd < 0) { |
1241 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1242 | full_fname(batch_name)); |
b9f592fb WD |
1243 | exit_cleanup(RERR_FILEIO); |
1244 | } | |
9459290a WD |
1245 | if (read_batch) |
1246 | read_stream_flags(batch_fd); | |
6902ed17 | 1247 | } |
e8a96e27 WD |
1248 | if (write_batch < 0) |
1249 | dry_run = 1; | |
6902ed17 | 1250 | |
75aeac44 | 1251 | if (am_daemon && !am_server) |
7a6421fa | 1252 | return daemon_main(); |
f0fca04e | 1253 | |
08ac228f AT |
1254 | if (argc < 1) { |
1255 | usage(FERROR); | |
65417579 | 1256 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1257 | } |
1258 | ||
7a6421fa | 1259 | if (am_server) { |
f0359dd0 AT |
1260 | set_nonblocking(STDIN_FILENO); |
1261 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1262 | if (am_daemon) |
1263 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1264 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1265 | } | |
c627d613 | 1266 | |
ff81e809 | 1267 | ret = start_client(argc, argv); |
d9c7edf6 | 1268 | if (ret == -1) |
9098bbf3 | 1269 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1270 | else |
9098bbf3 MP |
1271 | exit_cleanup(ret); |
1272 | ||
0f5a04e3 | 1273 | return ret; |
c627d613 | 1274 | } |