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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; | |
bb6721dc | 43 | extern int copy_links; |
a695b379 | 44 | extern int copy_dirlinks; |
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; | |
05278935 | 65 | mode_t orig_umask = 0; |
a00628b3 | 66 | struct file_list *the_file_list; |
c627d613 | 67 | |
91c5833b WD |
68 | /* There's probably never more than at most 2 outstanding child processes, |
69 | * but set it higher, just in case. */ | |
84e6d6fd | 70 | #define MAXCHILDPROCS 7 |
ee7118a8 | 71 | |
8261af74 WD |
72 | #ifdef HAVE_SIGACTION |
73 | # ifdef HAVE_SIGPROCMASK | |
74 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
75 | # else | |
76 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
77 | # endif | |
60ee01f5 WD |
78 | static struct sigaction sigact; |
79 | #endif | |
80 | ||
ee7118a8 DD |
81 | struct pid_status { |
82 | pid_t pid; | |
84e6d6fd | 83 | int status; |
ee7118a8 DD |
84 | } pid_stat_table[MAXCHILDPROCS]; |
85 | ||
33c4b445 WD |
86 | static time_t starttime, endtime; |
87 | static int64 total_read, total_written; | |
88 | ||
e5a2b854 | 89 | static void show_malloc_stats(void); |
82980a23 | 90 | |
97d8e709 | 91 | /* Works like waitpid(), but if we already harvested the child pid in our |
6d59ac19 | 92 | * remember_children(), we succeed instead of returning an error. */ |
97d8e709 | 93 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) |
82980a23 | 94 | { |
97d8e709 | 95 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 96 | |
6fb812f7 | 97 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 | 98 | /* Status of requested child no longer available: check to |
6d59ac19 | 99 | * see if it was processed by remember_children(). */ |
97d8e709 | 100 | int cnt; |
84e6d6fd | 101 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 102 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 103 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 104 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 105 | return pid; |
ee7118a8 DD |
106 | } |
107 | } | |
108 | } | |
109 | ||
97d8e709 WD |
110 | return waited_pid; |
111 | } | |
112 | ||
113 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 114 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
115 | { |
116 | pid_t waited_pid; | |
117 | int status; | |
118 | ||
119 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
120 | msleep(20); | |
121 | io_flush(FULL_FLUSH); | |
122 | } | |
123 | ||
d9c7edf6 WD |
124 | /* TODO: If the child exited on a signal, then log an |
125 | * appropriate error message. Perhaps we should also accept a | |
126 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 127 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
128 | if (waited_pid < 0) { |
129 | rsyserr(FERROR, errno, "waitpid"); | |
130 | *exit_code_ptr = RERR_WAITCHILD; | |
131 | } else if (!WIFEXITED(status)) { | |
40e6752f | 132 | #ifdef WCOREDUMP |
dbefb6b4 | 133 | if (WCOREDUMP(status)) |
84e6d6fd | 134 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
135 | else |
136 | #endif | |
137 | if (WIFSIGNALED(status)) | |
84e6d6fd | 138 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 139 | else |
84e6d6fd | 140 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 141 | } else |
84e6d6fd | 142 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
143 | } |
144 | ||
b9f592fb WD |
145 | /* This function gets called from all 3 processes. We want the client side |
146 | * to actually output the text, but the sender is the only process that has | |
147 | * all the stats we need. So, if we're a client sender, we do the report. | |
148 | * If we're a server sender, we write the stats on the supplied fd. If | |
149 | * we're the client receiver we read the stats from the supplied fd and do | |
150 | * the report. All processes might also generate a set of debug stats, if | |
151 | * the verbose level is high enough (this is the only thing that the | |
152 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 153 | static void handle_stats(int f) |
c627d613 | 154 | { |
33c4b445 WD |
155 | endtime = time(NULL); |
156 | ||
b9f592fb | 157 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
158 | total_read = stats.total_read; |
159 | total_written = stats.total_written; | |
7a6421fa | 160 | |
7bb7058e | 161 | if (do_stats && verbose > 1) { |
5c15e29f | 162 | /* These come out from every process */ |
7bb7058e | 163 | show_malloc_stats(); |
86943126 | 164 | show_flist_stats(); |
5c15e29f MP |
165 | } |
166 | ||
e5fbaa71 S |
167 | if (am_generator) |
168 | return; | |
169 | ||
248fbb8c | 170 | if (am_daemon) { |
a9766ef1 | 171 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
172 | if (f == -1 || !am_sender) |
173 | return; | |
248fbb8c AT |
174 | } |
175 | ||
e19452a9 | 176 | if (am_server) { |
3e491682 | 177 | if (am_sender) { |
b9f592fb WD |
178 | write_longint(f, total_read); |
179 | write_longint(f, total_written); | |
180 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
181 | if (protocol_version >= 29) { |
182 | write_longint(f, stats.flist_buildtime); | |
183 | write_longint(f, stats.flist_xfertime); | |
184 | } | |
e19452a9 | 185 | } |
7a6421fa AT |
186 | return; |
187 | } | |
e19452a9 DD |
188 | |
189 | /* this is the client */ | |
d9c7edf6 | 190 | |
9d19f8a5 WD |
191 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
192 | ; | |
193 | else if (!am_sender) { | |
58c5c245 WD |
194 | /* Read the first two in opposite order because the meaning of |
195 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
196 | total_written = read_longint(f); |
197 | total_read = read_longint(f); | |
a800434a | 198 | stats.total_size = read_longint(f); |
f0f7e760 WD |
199 | if (protocol_version >= 29) { |
200 | stats.flist_buildtime = read_longint(f); | |
201 | stats.flist_xfertime = read_longint(f); | |
202 | } | |
e4676bb5 | 203 | } else if (write_batch) { |
b9f592fb WD |
204 | /* The --read-batch process is going to be a client |
205 | * receiver, so we need to give it the stats. */ | |
206 | write_longint(batch_fd, total_read); | |
207 | write_longint(batch_fd, total_written); | |
208 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
209 | if (protocol_version >= 29) { |
210 | write_longint(batch_fd, stats.flist_buildtime); | |
211 | write_longint(batch_fd, stats.flist_xfertime); | |
212 | } | |
a800434a | 213 | } |
e4676bb5 | 214 | } |
a800434a | 215 | |
e4676bb5 WD |
216 | static void output_summary(void) |
217 | { | |
a800434a | 218 | if (do_stats) { |
1f658d42 | 219 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
220 | rprintf(FINFO,"Number of files transferred: %d\n", |
221 | stats.num_transferred_files); | |
60613dc8 WD |
222 | rprintf(FINFO,"Total file size: %s bytes\n", |
223 | human_num(stats.total_size)); | |
224 | rprintf(FINFO,"Total transferred file size: %s bytes\n", | |
225 | human_num(stats.total_transferred_size)); | |
226 | rprintf(FINFO,"Literal data: %s bytes\n", | |
227 | human_num(stats.literal_data)); | |
228 | rprintf(FINFO,"Matched data: %s bytes\n", | |
229 | human_num(stats.matched_data)); | |
1f658d42 | 230 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
231 | if (stats.flist_buildtime) { |
232 | rprintf(FINFO, | |
233 | "File list generation time: %.3f seconds\n", | |
234 | (double)stats.flist_buildtime / 1000); | |
235 | rprintf(FINFO, | |
236 | "File list transfer time: %.3f seconds\n", | |
237 | (double)stats.flist_xfertime / 1000); | |
238 | } | |
60613dc8 WD |
239 | rprintf(FINFO,"Total bytes sent: %s\n", |
240 | human_num(total_written)); | |
241 | rprintf(FINFO,"Total bytes received: %s\n", | |
242 | human_num(total_read)); | |
7a6421fa | 243 | } |
d9c7edf6 | 244 | |
e19452a9 | 245 | if (verbose || do_stats) { |
b9f592fb | 246 | rprintf(FINFO, |
60613dc8 WD |
247 | "\nsent %s bytes received %s bytes %s bytes/sec\n", |
248 | human_num(total_written), human_num(total_read), | |
249 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
250 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
251 | human_num(stats.total_size), | |
b9f592fb | 252 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 253 | } |
fc8a6b97 AT |
254 | |
255 | fflush(stdout); | |
256 | fflush(stderr); | |
c627d613 AT |
257 | } |
258 | ||
259 | ||
e5a2b854 MP |
260 | /** |
261 | * If our C library can get malloc statistics, then show them to FINFO | |
262 | **/ | |
263 | static void show_malloc_stats(void) | |
264 | { | |
4f5b0756 | 265 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
266 | struct mallinfo mi; |
267 | ||
268 | mi = mallinfo(); | |
269 | ||
ce672562 | 270 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
271 | getpid(), am_server ? "server " : "", |
272 | am_daemon ? "daemon " : "", who_am_i()); | |
273 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
274 | (long)mi.arena); | |
275 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
276 | (long)mi.ordblks); | |
277 | rprintf(FINFO, " smblks: %10ld\n", | |
278 | (long)mi.smblks); | |
279 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
280 | (long)mi.hblks); | |
281 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
282 | (long)mi.hblkhd); | |
283 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
284 | (long)mi.arena + mi.hblkhd); | |
285 | rprintf(FINFO, " usmblks: %10ld\n", | |
286 | (long)mi.usmblks); | |
287 | rprintf(FINFO, " fsmblks: %10ld\n", | |
288 | (long)mi.fsmblks); | |
289 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
290 | (long)mi.uordblks); | |
291 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
292 | (long)mi.fordblks); | |
293 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
294 | (long)mi.keepcost); | |
e5a2b854 MP |
295 | #endif /* HAVE_MALLINFO */ |
296 | } | |
297 | ||
298 | ||
0882faa2 | 299 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
300 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
301 | int *f_in, int *f_out) | |
c627d613 | 302 | { |
6c2e5b56 | 303 | int i, argc = 0; |
887e553f | 304 | char *args[MAX_ARGS]; |
19b27a48 | 305 | pid_t ret; |
82f0c63e | 306 | char *dir = NULL; |
bb4aa89c | 307 | int dash_l_set = 0; |
366345fe | 308 | |
088aac85 | 309 | if (!read_batch && !local_server) { |
82f0c63e | 310 | char *t, *f, in_quote = '\0'; |
9af87151 | 311 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 312 | if (!cmd) |
9af87151 | 313 | cmd = rsh_env; |
366345fe AT |
314 | if (!cmd) |
315 | cmd = RSYNC_RSH; | |
316 | cmd = strdup(cmd); | |
d9c7edf6 | 317 | if (!cmd) |
366345fe AT |
318 | goto oom; |
319 | ||
82f0c63e WD |
320 | for (t = f = cmd; *f; f++) { |
321 | if (*f == ' ') | |
322 | continue; | |
e7a392c7 | 323 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 324 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 325 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
326 | exit_cleanup(RERR_SYNTAX); |
327 | } | |
82f0c63e WD |
328 | args[argc++] = t; |
329 | while (*f != ' ' || in_quote) { | |
330 | if (!*f) { | |
331 | if (in_quote) { | |
332 | rprintf(FERROR, | |
333 | "Missing trailing-%c in remote-shell command.\n", | |
334 | in_quote); | |
335 | exit_cleanup(RERR_SYNTAX); | |
336 | } | |
337 | f--; | |
338 | break; | |
339 | } | |
340 | if (*f == '\'' || *f == '"') { | |
341 | if (!in_quote) { | |
342 | in_quote = *f++; | |
343 | continue; | |
344 | } | |
345 | if (*f == in_quote && *++f != in_quote) { | |
346 | in_quote = '\0'; | |
347 | continue; | |
348 | } | |
349 | } | |
350 | *t++ = *f++; | |
351 | } | |
352 | *t++ = '\0'; | |
887e553f | 353 | } |
c627d613 | 354 | |
d9c7edf6 | 355 | /* check to see if we've already been given '-l user' in |
9af87151 | 356 | * the remote-shell command */ |
bb4aa89c WD |
357 | for (i = 0; i < argc-1; i++) { |
358 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
359 | dash_l_set = 1; | |
360 | } | |
361 | ||
4f5b0756 | 362 | #ifdef HAVE_REMSH |
366345fe AT |
363 | /* remsh (on HPUX) takes the arguments the other way around */ |
364 | args[argc++] = machine; | |
bb4aa89c | 365 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
366 | args[argc++] = "-l"; |
367 | args[argc++] = user; | |
368 | } | |
7b8356d0 | 369 | #else |
bb4aa89c | 370 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
371 | args[argc++] = "-l"; |
372 | args[argc++] = user; | |
373 | } | |
374 | args[argc++] = machine; | |
7b8356d0 | 375 | #endif |
c627d613 | 376 | |
366345fe | 377 | args[argc++] = rsync_path; |
c627d613 | 378 | |
9af87151 | 379 | if (blocking_io < 0) { |
90e22f4b WD |
380 | char *cp; |
381 | if ((cp = strrchr(cmd, '/')) != NULL) | |
382 | cp++; | |
383 | else | |
384 | cp = cmd; | |
385 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
386 | blocking_io = 1; | |
66b71163 | 387 | } |
e384bfbd | 388 | |
93689aa5 | 389 | server_options(args,&argc); |
e7a392c7 WD |
390 | |
391 | if (argc >= MAX_ARGS - 2) { | |
392 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
393 | exit_cleanup(RERR_SYNTAX); | |
394 | } | |
366345fe | 395 | } |
c627d613 | 396 | |
366345fe | 397 | args[argc++] = "."; |
76076c4b | 398 | |
d9c7edf6 | 399 | if (!daemon_over_rsh && path && *path) |
366345fe | 400 | args[argc++] = path; |
c627d613 | 401 | |
366345fe | 402 | args[argc] = NULL; |
c627d613 | 403 | |
366345fe | 404 | if (verbose > 3) { |
e7a392c7 | 405 | for (i = 0; i < argc; i++) |
45c49b52 | 406 | rprintf(FINFO, "cmd[%d]=%s ", i, args[i]); |
82f0c63e | 407 | rprintf(FINFO, "\n"); |
366345fe AT |
408 | } |
409 | ||
c0d8e84c WD |
410 | if (read_batch) { |
411 | int from_gen_pipe[2]; | |
412 | if (fd_pair(from_gen_pipe) < 0) { | |
413 | rsyserr(FERROR, errno, "pipe"); | |
414 | exit_cleanup(RERR_IPC); | |
415 | } | |
416 | batch_gen_fd = from_gen_pipe[0]; | |
417 | *f_out = from_gen_pipe[1]; | |
418 | *f_in = batch_fd; | |
419 | ret = -1; /* no child pid */ | |
420 | } else if (local_server) { | |
b1df18d7 WD |
421 | /* If the user didn't request --[no-]whole-file, force |
422 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 423 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 424 | whole_file = 1; |
25d34a5c | 425 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 426 | } else |
366345fe | 427 | ret = piped_child(args,f_in,f_out); |
c627d613 | 428 | |
3a69fad0 WD |
429 | if (dir) |
430 | free(dir); | |
82306bf6 | 431 | |
366345fe | 432 | return ret; |
c627d613 | 433 | |
acee11fc | 434 | oom: |
366345fe AT |
435 | out_of_memory("do_cmd"); |
436 | return 0; /* not reached */ | |
c627d613 AT |
437 | } |
438 | ||
eb598fac WD |
439 | /* The receiving side operates in one of two modes: |
440 | * | |
cc8c5057 WD |
441 | * 1. it receives any number of files into a destination directory, |
442 | * placing them according to their names in the file-list. | |
eb598fac WD |
443 | * |
444 | * 2. it receives a single file and saves it using the name in the | |
445 | * destination path instead of its file-list name. This requires a | |
446 | * "local name" for writing out the destination file. | |
447 | * | |
448 | * So, our task is to figure out what mode/local-name we need and return | |
449 | * either a NULL for mode 1, or the local-name for mode 2. We also | |
450 | * change directory if there are any path components in dest_path. */ | |
451 | static char *get_local_name(struct file_list *flist, char *dest_path) | |
c627d613 | 452 | { |
7a6421fa | 453 | STRUCT_STAT st; |
eb598fac | 454 | char *cp; |
c627d613 | 455 | |
eb598fac WD |
456 | if (verbose > 2) { |
457 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
458 | flist->count, NS(dest_path)); | |
459 | } | |
1f0610ef | 460 | |
ee8e2b15 | 461 | if (!dest_path || list_only) |
1f0610ef | 462 | return NULL; |
c95da96a | 463 | |
eb598fac WD |
464 | /* If the destination path refers to an existing directory, enter |
465 | * it and use mode 1. If there is something other than a directory | |
466 | * at the destination path, we must be transferring one file | |
467 | * (anything at the destination will be overwritten). */ | |
468 | if (do_stat(dest_path, &st) == 0) { | |
1ff5450d | 469 | if (S_ISDIR(st.st_mode)) { |
eb598fac | 470 | if (!push_dir(dest_path)) { |
982e05bb | 471 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 472 | full_fname(dest_path)); |
65417579 | 473 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
474 | } |
475 | return NULL; | |
476 | } | |
477 | if (flist->count > 1) { | |
eb598fac WD |
478 | rprintf(FERROR, |
479 | "ERROR: destination must be a directory when" | |
480 | " copying more than 1 file\n"); | |
65417579 | 481 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 482 | } |
44c26bf2 WD |
483 | /* Caution: flist->count could be 0! */ |
484 | if (flist->count == 1 && S_ISDIR(flist->files[0]->mode)) { | |
485 | rprintf(FERROR, | |
486 | "ERROR: cannot overwrite non-directory" | |
487 | " with a directory\n"); | |
488 | exit_cleanup(RERR_FILESELECT); | |
489 | } | |
cc8c5057 WD |
490 | } else if (errno != ENOENT) { |
491 | rsyserr(FERROR, errno, "cannot stat destination %s", | |
492 | full_fname(dest_path)); | |
493 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
494 | } |
495 | ||
eb598fac WD |
496 | cp = strrchr(dest_path, '/'); |
497 | ||
498 | /* If the destination path ends in a slash or we are transferring | |
499 | * multiple files, create a directory at the destination path, | |
500 | * enter the new directory, and use mode 1. */ | |
501 | if (flist->count > 1 || (cp && !cp[1])) { | |
502 | /* Lop off the final slash (if any). */ | |
503 | if (cp && !cp[1]) | |
504 | *cp = '\0'; | |
505 | ||
05278935 | 506 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
507 | rsyserr(FERROR, errno, "mkdir %s failed", |
508 | full_fname(dest_path)); | |
509 | exit_cleanup(RERR_FILEIO); | |
510 | } | |
1ff5450d | 511 | |
eb598fac WD |
512 | if (verbose) |
513 | rprintf(FINFO, "created directory %s\n", dest_path); | |
514 | ||
515 | if (dry_run) { | |
516 | /* Indicate that the destination directory doesn't | |
517 | * really exist and return mode 1. */ | |
518 | dry_run++; | |
519 | return NULL; | |
520 | } | |
521 | ||
522 | if (!push_dir(dest_path)) { | |
523 | rsyserr(FERROR, errno, "push_dir#2 %s failed", | |
524 | full_fname(dest_path)); | |
525 | exit_cleanup(RERR_FILESELECT); | |
526 | } | |
e5a96f0f | 527 | |
e5a96f0f | 528 | return NULL; |
1ff5450d AT |
529 | } |
530 | ||
eb598fac WD |
531 | /* Otherwise, we are writing a single file, possibly on top of an |
532 | * existing non-directory. Change to the item's parent directory | |
533 | * (if it has a path component), return the basename of the | |
534 | * destination file as the local name, and use mode 2. */ | |
535 | if (!cp) | |
536 | return dest_path; | |
537 | ||
538 | if (cp == dest_path) | |
539 | dest_path = "/"; | |
540 | ||
541 | *cp = '\0'; | |
542 | if (!push_dir(dest_path)) { | |
543 | rsyserr(FERROR, errno, "push_dir#3 %s failed", | |
544 | full_fname(dest_path)); | |
65417579 | 545 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 546 | } |
eb598fac | 547 | *cp = '/'; |
1ff5450d | 548 | |
eb598fac | 549 | return cp + 1; |
c627d613 AT |
550 | } |
551 | ||
552 | ||
1a8e5c97 | 553 | /* This is only called by the sender. */ |
3485ae83 | 554 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 555 | { |
1a8e5c97 WD |
556 | int i; |
557 | ||
558 | if (protocol_version < 29) | |
559 | i = read_int(f_in); | |
560 | else { | |
3485ae83 | 561 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
562 | && read_shortint(f_in) == ITEM_IS_NEW) { |
563 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 564 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
565 | write_shortint(f_out, ITEM_IS_NEW); |
566 | } | |
4e0fcd85 WD |
567 | } |
568 | ||
1a8e5c97 | 569 | if (i != -1) { |
c7791b8c WD |
570 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
571 | i, who_am_i()); | |
1a8e5c97 | 572 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
573 | } |
574 | } | |
575 | ||
576 | ||
eb598fac | 577 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 578 | { |
7a6421fa AT |
579 | struct file_list *flist; |
580 | char *dir = argv[0]; | |
c627d613 | 581 | |
45e08edb WD |
582 | if (verbose > 2) { |
583 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
584 | (long)getpid()); | |
585 | } | |
d9c7edf6 | 586 | |
2adbcdc7 | 587 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
588 | rprintf(FERROR, "ERROR: module is write only\n"); |
589 | exit_cleanup(RERR_SYNTAX); | |
590 | return; | |
591 | } | |
bf26aa22 WD |
592 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
593 | rprintf(FERROR, | |
594 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
595 | exit_cleanup(RERR_SYNTAX); | |
596 | return; | |
597 | } | |
7a92ded3 | 598 | |
59187666 | 599 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
600 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
601 | full_fname(dir)); | |
65417579 | 602 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
603 | } |
604 | argc--; | |
605 | argv++; | |
d9c7edf6 | 606 | |
48a1ff0d | 607 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 608 | argc = 1; |
7a6421fa AT |
609 | argv--; |
610 | argv[0] = "."; | |
611 | } | |
d9c7edf6 | 612 | |
7a6421fa | 613 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
614 | if (!flist || flist->count == 0) { |
615 | exit_cleanup(0); | |
616 | } | |
a00628b3 | 617 | the_file_list = flist; |
8d9dc9f9 | 618 | |
da3478b2 WD |
619 | io_start_buffering_in(); |
620 | io_start_buffering_out(); | |
621 | ||
7a6421fa | 622 | send_files(flist,f_out,f_in); |
f1e3656e | 623 | io_flush(FULL_FLUSH); |
33c4b445 | 624 | handle_stats(f_out); |
4e0fcd85 | 625 | if (protocol_version >= 24) |
3485ae83 | 626 | read_final_goodbye(f_in, f_out); |
f1e3656e | 627 | io_flush(FULL_FLUSH); |
7a6421fa | 628 | exit_cleanup(0); |
c627d613 AT |
629 | } |
630 | ||
631 | ||
dc5ddbcc AT |
632 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
633 | { | |
d186eb1a | 634 | int pid; |
84e6d6fd | 635 | int exit_code = 0; |
c70e07d9 | 636 | int error_pipe[2]; |
dc5ddbcc | 637 | |
bb6721dc WD |
638 | /* The receiving side mustn't obey this, or an existing symlink that |
639 | * points to an identical file won't be replaced by the referent. */ | |
a695b379 | 640 | copy_links = copy_dirlinks = 0; |
bb6721dc | 641 | |
d186eb1a | 642 | if (preserve_hard_links) |
3485ae83 | 643 | init_hard_links(); |
dc5ddbcc | 644 | |
c70e07d9 | 645 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 646 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 647 | exit_cleanup(RERR_IPC); |
554e0a8d | 648 | } |
d9c7edf6 | 649 | |
f1e3656e | 650 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 651 | |
ba449e44 | 652 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 653 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
654 | exit_cleanup(RERR_IPC); |
655 | } | |
656 | ||
657 | if (pid == 0) { | |
554e0a8d | 658 | close(error_pipe[0]); |
3a69fad0 WD |
659 | if (f_in != f_out) |
660 | close(f_out); | |
e08c9610 | 661 | |
554e0a8d | 662 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 663 | close_multiplexing_out(); |
554e0a8d AT |
664 | |
665 | /* set place to send errors */ | |
f1e3656e | 666 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 667 | |
c70e07d9 | 668 | recv_files(f_in, flist, local_name); |
f1e3656e | 669 | io_flush(FULL_FLUSH); |
33c4b445 | 670 | handle_stats(f_in); |
e08c9610 | 671 | |
f1e3656e WD |
672 | send_msg(MSG_DONE, "", 0); |
673 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 674 | |
40df65fd WD |
675 | /* Handle any keep-alive packets from the post-processing work |
676 | * that the generator does. */ | |
4e0fcd85 | 677 | if (protocol_version >= 29) { |
051182cb | 678 | kluge_around_eof = -1; |
1a8e5c97 WD |
679 | |
680 | /* This should only get stopped via a USR2 signal. */ | |
681 | while (read_int(f_in) == flist->count | |
682 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
683 | ||
3485ae83 WD |
684 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
685 | who_am_i()); | |
1a8e5c97 | 686 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
687 | } |
688 | ||
9e0582f9 WD |
689 | /* Finally, we go to sleep until our parent kills us with a |
690 | * USR2 signal. We sleep for a short time, as on some OSes | |
691 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
692 | while (1) |
693 | msleep(20); | |
d186eb1a | 694 | } |
dc5ddbcc | 695 | |
b695f242 | 696 | am_generator = 1; |
9eeb3b9c | 697 | close_multiplexing_in(); |
e8a96e27 | 698 | if (write_batch && !am_server) |
b9f592fb | 699 | stop_write_batch(); |
b695f242 | 700 | |
554e0a8d | 701 | close(error_pipe[1]); |
3a69fad0 WD |
702 | if (f_in != f_out) |
703 | close(f_in); | |
e1b3d5c4 | 704 | |
da3478b2 | 705 | io_start_buffering_out(); |
b3e10ed7 | 706 | |
f1e3656e | 707 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 708 | |
c70e07d9 | 709 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 710 | |
33c4b445 | 711 | handle_stats(-1); |
f1e3656e | 712 | io_flush(FULL_FLUSH); |
d04e9c51 | 713 | if (protocol_version >= 24) { |
8ada7518 AT |
714 | /* send a final goodbye message */ |
715 | write_int(f_out, -1); | |
716 | } | |
f1e3656e | 717 | io_flush(FULL_FLUSH); |
8ada7518 | 718 | |
f1e3656e | 719 | set_msg_fd_in(-1); |
089a2435 | 720 | kill(pid, SIGUSR2); |
84e6d6fd WD |
721 | wait_process_with_flush(pid, &exit_code); |
722 | return exit_code; | |
dc5ddbcc AT |
723 | } |
724 | ||
c627d613 | 725 | |
9486289c | 726 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 727 | { |
84e6d6fd | 728 | int exit_code; |
7a6421fa | 729 | struct file_list *flist; |
6c2e5b56 | 730 | char *local_name = NULL; |
7a6421fa | 731 | char *dir = NULL; |
07bff66f WD |
732 | int save_verbose = verbose; |
733 | ||
734 | if (filesfrom_fd >= 0) { | |
735 | /* We can't mix messages with files-from data on the socket, | |
736 | * so temporarily turn off verbose messages. */ | |
737 | verbose = 0; | |
738 | } | |
f0fca04e | 739 | |
45e08edb WD |
740 | if (verbose > 2) { |
741 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
742 | argc, (long)getpid()); | |
743 | } | |
09b7f5db | 744 | |
2adbcdc7 | 745 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
746 | rprintf(FERROR,"ERROR: module is read only\n"); |
747 | exit_cleanup(RERR_SYNTAX); | |
748 | return; | |
749 | } | |
750 | ||
7a6421fa AT |
751 | if (argc > 0) { |
752 | dir = argv[0]; | |
753 | argc--; | |
754 | argv++; | |
59187666 | 755 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
756 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
757 | full_fname(dir)); | |
65417579 | 758 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 759 | } |
7a6421fa | 760 | } |
c627d613 | 761 | |
da3478b2 | 762 | io_start_buffering_in(); |
57dee64e | 763 | recv_filter_list(f_in); |
c627d613 | 764 | |
7c2a9e76 | 765 | if (filesfrom_fd >= 0) { |
07bff66f WD |
766 | /* We need to send the files-from names to the sender at the |
767 | * same time that we receive the file-list from them, so we | |
768 | * need the IO routines to automatically write out the names | |
769 | * onto our f_out socket as we read the file-list. This | |
770 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
771 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
772 | filesfrom_fd = -1; | |
773 | } | |
774 | ||
b9f592fb | 775 | flist = recv_file_list(f_in); |
07bff66f | 776 | verbose = save_verbose; |
4c36a13e AT |
777 | if (!flist) { |
778 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 779 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 780 | } |
a00628b3 | 781 | the_file_list = flist; |
d9c7edf6 | 782 | |
29fad7a3 | 783 | if (argc > 0) |
7a6421fa | 784 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 785 | |
84e6d6fd WD |
786 | exit_code = do_recv(f_in,f_out,flist,local_name); |
787 | exit_cleanup(exit_code); | |
c627d613 AT |
788 | } |
789 | ||
790 | ||
734a94a2 | 791 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
792 | { |
793 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 794 | return 0; |
25d34a5c MP |
795 | } |
796 | ||
797 | ||
9486289c | 798 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 799 | { |
f0359dd0 AT |
800 | set_nonblocking(f_in); |
801 | set_nonblocking(f_out); | |
802 | ||
da3478b2 WD |
803 | io_set_sock_fds(f_in, f_out); |
804 | setup_protocol(f_out, f_in); | |
595251de | 805 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
806 | setup_iconv(); |
807 | #endif | |
da3478b2 | 808 | |
d04e9c51 | 809 | if (protocol_version >= 23) |
da3478b2 | 810 | io_start_multiplex_out(); |
7a6421fa | 811 | |
7a6421fa | 812 | if (am_sender) { |
83926d3c | 813 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
814 | if (need_messages_from_generator) |
815 | io_start_multiplex_in(); | |
9b3318b0 | 816 | |
7842418b | 817 | recv_filter_list(f_in); |
7a6421fa AT |
818 | do_server_sender(f_in, f_out, argc, argv); |
819 | } else { | |
820 | do_server_recv(f_in, f_out, argc, argv); | |
821 | } | |
822 | exit_cleanup(0); | |
366345fe AT |
823 | } |
824 | ||
0ba48136 MP |
825 | |
826 | /* | |
827 | * This is called once the connection has been negotiated. It is used | |
828 | * for rsyncd, remote-shell, and local connections. | |
829 | */ | |
19b27a48 | 830 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 831 | { |
088aac85 | 832 | struct file_list *flist = NULL; |
84e6d6fd | 833 | int exit_code = 0, exit_code2 = 0; |
9486289c | 834 | char *local_name = NULL; |
19b27a48 AT |
835 | |
836 | cleanup_child_pid = pid; | |
67a28eb2 | 837 | if (!read_batch) { |
b9f592fb WD |
838 | set_nonblocking(f_in); |
839 | set_nonblocking(f_out); | |
840 | } | |
f0359dd0 | 841 | |
da3478b2 | 842 | io_set_sock_fds(f_in, f_out); |
6d7b6081 | 843 | setup_protocol(f_out,f_in); |
595251de | 844 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
845 | setup_iconv(); |
846 | #endif | |
6d7b6081 | 847 | |
b9f592fb | 848 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 849 | io_start_multiplex_in(); |
d9c7edf6 | 850 | |
18882701 WD |
851 | /* We set our stderr file handle to blocking because ssh might have |
852 | * set it to non-blocking. This can be particularly troublesome if | |
853 | * stderr is a clone of stdout, because ssh would have set our stdout | |
854 | * to non-blocking at the same time (which can easily cause us to lose | |
855 | * output from our print statements). This kluge shouldn't cause ssh | |
856 | * any problems for how we use it. Note also that we delayed setting | |
857 | * this until after the above protocol setup so that we know for sure | |
858 | * that ssh is done twiddling its file descriptors. */ | |
859 | set_blocking(STDERR_FILENO); | |
860 | ||
9486289c | 861 | if (am_sender) { |
83926d3c | 862 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 863 | io_start_buffering_out(); |
860236bf | 864 | if (!filesfrom_host) |
a0a33ee5 | 865 | set_msg_fd_in(f_in); |
57dee64e | 866 | send_filter_list(f_out); |
860236bf | 867 | if (filesfrom_host) |
7c2a9e76 | 868 | filesfrom_fd = f_in; |
b9f592fb | 869 | |
e8a96e27 | 870 | if (write_batch && !am_server) |
b9f592fb | 871 | start_write_batch(f_out); |
a00628b3 | 872 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 873 | set_msg_fd_in(-1); |
d9c7edf6 | 874 | if (verbose > 3) |
9486289c | 875 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 876 | the_file_list = flist; |
e1b3d5c4 | 877 | |
f1e3656e | 878 | io_flush(NORMAL_FLUSH); |
9486289c | 879 | send_files(flist,f_out,f_in); |
f1e3656e | 880 | io_flush(FULL_FLUSH); |
33c4b445 | 881 | handle_stats(-1); |
4e0fcd85 | 882 | if (protocol_version >= 24) |
3485ae83 | 883 | read_final_goodbye(f_in, f_out); |
9486289c AT |
884 | if (pid != -1) { |
885 | if (verbose > 3) | |
08a740ff | 886 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 887 | io_flush(FULL_FLUSH); |
84e6d6fd | 888 | wait_process_with_flush(pid, &exit_code); |
9486289c | 889 | } |
33c4b445 | 890 | output_summary(); |
c87ae64a | 891 | io_flush(FULL_FLUSH); |
84e6d6fd | 892 | exit_cleanup(exit_code); |
9486289c | 893 | } |
f7632fc6 | 894 | |
bf26aa22 WD |
895 | if (need_messages_from_generator && !read_batch) |
896 | io_start_multiplex_out(); | |
897 | ||
48a1ff0d WD |
898 | if (argc == 0) |
899 | list_only |= 1; | |
d9c7edf6 | 900 | |
57dee64e | 901 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 902 | |
7c2a9e76 WD |
903 | if (filesfrom_fd >= 0) { |
904 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
905 | filesfrom_fd = -1; | |
906 | } | |
907 | ||
e8a96e27 | 908 | if (write_batch && !am_server) |
b9f592fb | 909 | start_write_batch(f_in); |
9486289c | 910 | flist = recv_file_list(f_in); |
a00628b3 | 911 | the_file_list = flist; |
d9c7edf6 | 912 | |
9d19f8a5 WD |
913 | if (flist && flist->count > 0) { |
914 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 915 | |
84e6d6fd | 916 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
917 | } else { |
918 | handle_stats(-1); | |
919 | output_summary(); | |
920 | } | |
d9c7edf6 | 921 | |
9486289c | 922 | if (pid != -1) { |
8d9dc9f9 | 923 | if (verbose > 3) |
08a740ff | 924 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 925 | io_flush(FULL_FLUSH); |
84e6d6fd | 926 | wait_process_with_flush(pid, &exit_code); |
9486289c | 927 | } |
d9c7edf6 | 928 | |
84e6d6fd | 929 | return MAX(exit_code, exit_code2); |
9486289c AT |
930 | } |
931 | ||
7169bb4a MP |
932 | static int copy_argv (char *argv[]) |
933 | { | |
934 | int i; | |
935 | ||
936 | for (i = 0; argv[i]; i++) { | |
937 | if (!(argv[i] = strdup(argv[i]))) { | |
938 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
939 | __FILE__, __LINE__); | |
940 | return RERR_MALLOC; | |
941 | } | |
942 | } | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | ||
c1a04ecb | 948 | /** |
0ba48136 MP |
949 | * Start a client for either type of remote connection. Work out |
950 | * whether the arguments request a remote shell or rsyncd connection, | |
951 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
952 | * |
953 | * Calls either start_socket_client (for sockets) or do_cmd and | |
954 | * client_run (for ssh). | |
c1a04ecb | 955 | **/ |
fc8a6b97 | 956 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
957 | { |
958 | char *p; | |
959 | char *shell_machine = NULL; | |
960 | char *shell_path = NULL; | |
961 | char *shell_user = NULL; | |
19b27a48 AT |
962 | int ret; |
963 | pid_t pid; | |
5d6bcd44 | 964 | int f_in,f_out; |
7169bb4a MP |
965 | int rc; |
966 | ||
967 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 968 | * command line. */ |
75aeac44 | 969 | if ((rc = copy_argv(argv))) |
7169bb4a | 970 | return rc; |
5d6bcd44 | 971 | |
d16c245f | 972 | if (!read_batch) { /* for read_batch, NO source is specified */ |
860236bf WD |
973 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
974 | if (shell_path) { /* source is remote */ | |
9425918d WD |
975 | char *dummy1; |
976 | int dummy2; | |
ee8e2b15 WD |
977 | if (--argc |
978 | && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { | |
9425918d WD |
979 | rprintf(FERROR, |
980 | "The source and destination cannot both be remote.\n"); | |
981 | exit_cleanup(RERR_SYNTAX); | |
982 | } | |
42ccb4c0 | 983 | argv++; |
860236bf WD |
984 | if (filesfrom_host && *filesfrom_host |
985 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 986 | rprintf(FERROR, |
50b31539 | 987 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
988 | exit_cleanup(RERR_SYNTAX); |
989 | } | |
860236bf | 990 | if (rsync_port) { |
d9c7edf6 | 991 | if (!shell_cmd) { |
860236bf WD |
992 | return start_socket_client(shell_machine, |
993 | shell_path, | |
42ccb4c0 | 994 | argc, argv); |
d9c7edf6 | 995 | } |
d9c7edf6 | 996 | daemon_over_rsh = 1; |
75aeac44 | 997 | } |
3591c066 | 998 | |
42ccb4c0 WD |
999 | am_sender = 0; |
1000 | } else { /* source is local, check dest arg */ | |
1001 | am_sender = 1; | |
1002 | ||
ee8e2b15 WD |
1003 | if (argc > 1) |
1004 | p = argv[--argc]; | |
1005 | else { | |
1006 | p = "."; | |
1007 | list_only = 1; | |
d9c7edf6 | 1008 | } |
a125c82a | 1009 | |
ee8e2b15 | 1010 | shell_path = check_for_hostspec(p, &shell_machine, &rsync_port); |
860236bf WD |
1011 | if (shell_path && filesfrom_host && *filesfrom_host |
1012 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1013 | rprintf(FERROR, |
50b31539 | 1014 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1015 | exit_cleanup(RERR_SYNTAX); |
1016 | } | |
860236bf | 1017 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1018 | local_server = 1; |
860236bf | 1019 | if (filesfrom_host) { |
7c2a9e76 | 1020 | rprintf(FERROR, |
50b31539 | 1021 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1022 | exit_cleanup(RERR_SYNTAX); |
1023 | } | |
860236bf | 1024 | shell_machine = NULL; |
ee8e2b15 | 1025 | shell_path = p; |
860236bf | 1026 | } else if (rsync_port) { |
d9c7edf6 | 1027 | if (!shell_cmd) { |
860236bf WD |
1028 | return start_socket_client(shell_machine, |
1029 | shell_path, | |
42ccb4c0 | 1030 | argc, argv); |
d9c7edf6 | 1031 | } |
d9c7edf6 | 1032 | daemon_over_rsh = 1; |
a125c82a | 1033 | } |
5d6bcd44 | 1034 | } |
d16c245f | 1035 | } else { /* read_batch */ |
d9c7edf6 WD |
1036 | local_server = 1; |
1037 | shell_path = argv[argc-1]; | |
860236bf | 1038 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1039 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1040 | exit_cleanup(RERR_SYNTAX); | |
1041 | } | |
6902ed17 MP |
1042 | } |
1043 | ||
5d6bcd44 | 1044 | if (shell_machine) { |
6fc048f4 | 1045 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1046 | if (p) { |
1047 | *p = 0; | |
1048 | shell_user = shell_machine; | |
1049 | shell_machine = p+1; | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | if (verbose > 3) { | |
9486289c | 1054 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1055 | shell_cmd ? shell_cmd : "", |
1056 | shell_machine ? shell_machine : "", | |
1057 | shell_user ? shell_user : "", | |
1058 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1059 | } |
d9c7edf6 | 1060 | |
d16c245f | 1061 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1062 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1063 | usage(FERROR); |
65417579 | 1064 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1065 | } |
27e3e9c9 | 1066 | |
d16c245f | 1067 | /* ... or no dest at all */ |
48a1ff0d WD |
1068 | if (!am_sender && argc == 0) |
1069 | list_only |= 1; | |
d9c7edf6 | 1070 | |
75aeac44 WD |
1071 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1072 | &f_in,&f_out); | |
1073 | ||
1074 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1075 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1076 | if (daemon_over_rsh) { |
1077 | int tmpret; | |
1078 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1079 | f_in, f_out, argc); | |
1080 | if (tmpret < 0) | |
1081 | return tmpret; | |
1082 | } | |
1083 | ||
fc8a6b97 AT |
1084 | ret = client_run(f_in, f_out, pid, argc, argv); |
1085 | ||
1086 | fflush(stdout); | |
1087 | fflush(stderr); | |
1088 | ||
1089 | return ret; | |
5d6bcd44 AT |
1090 | } |
1091 | ||
366345fe | 1092 | |
067669da WD |
1093 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1094 | { | |
6bf32edb | 1095 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1096 | } |
1097 | ||
067669da WD |
1098 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1099 | { | |
33c4b445 WD |
1100 | if (!am_server) |
1101 | output_summary(); | |
40df65fd | 1102 | close_all(); |
33c4b445 WD |
1103 | if (log_got_error) |
1104 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1105 | _exit(0); |
1106 | } | |
1107 | ||
6d59ac19 | 1108 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1109 | { |
029c1713 | 1110 | #ifdef WNOHANG |
ee7118a8 DD |
1111 | int cnt, status; |
1112 | pid_t pid; | |
1113 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1114 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1115 | * out we're instead saving the child exit statuses for later use. |
1116 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1117 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1118 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1119 | /* save the child's exit status */ |
1120 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1121 | if (pid_stat_table[cnt].pid == 0) { | |
1122 | pid_stat_table[cnt].pid = pid; | |
1123 | pid_stat_table[cnt].status = status; | |
1124 | break; | |
1125 | } | |
1126 | } | |
ee7118a8 | 1127 | } |
029c1713 | 1128 | #endif |
8261af74 | 1129 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1130 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1131 | #endif |
19b27a48 AT |
1132 | } |
1133 | ||
c0531332 MP |
1134 | |
1135 | /** | |
1136 | * This routine catches signals and tries to send them to gdb. | |
1137 | * | |
1138 | * Because it's called from inside a signal handler it ought not to | |
1139 | * use too many library routines. | |
1140 | * | |
1141 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1142 | * debugging without easy access to X. Perhaps use an environment | |
1143 | * variable, or just call a script? | |
1144 | * | |
1145 | * @todo The /proc/ magic probably only works on Linux (and | |
1146 | * Solaris?) Can we be more portable? | |
1147 | **/ | |
1148 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1149 | const char *get_panic_action(void) |
1150 | { | |
1151 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1152 | ||
1153 | if (cmd_fmt) | |
1154 | return cmd_fmt; | |
1155 | else | |
1156 | return "xterm -display :0 -T Panic -n Panic " | |
1157 | "-e gdb /proc/%d/exe %d"; | |
1158 | } | |
1159 | ||
1160 | ||
9fb3f7a9 MP |
1161 | /** |
1162 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1163 | * | |
1164 | * This signal handler is only installed if we were configured with | |
1165 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1166 | * should just look at the environment variable, but I'm a bit leery | |
1167 | * of a signal sending us into a busy loop. | |
1168 | **/ | |
067669da | 1169 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1170 | { |
1171 | char cmd_buf[300]; | |
1172 | int ret; | |
4fdc39dd MP |
1173 | |
1174 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1175 | getpid(), getpid()); |
1176 | ||
1177 | /* Unless we failed to execute gdb, we allow the process to | |
1178 | * continue. I'm not sure if that's right. */ | |
1179 | ret = system(cmd_buf); | |
1180 | if (ret) | |
1181 | _exit(ret); | |
1182 | } | |
1183 | #endif | |
1184 | ||
1185 | ||
5d6bcd44 | 1186 | int main(int argc,char *argv[]) |
d9c7edf6 | 1187 | { |
ff81e809 | 1188 | int ret; |
66a9dc96 WD |
1189 | int orig_argc = argc; |
1190 | char **orig_argv = argv; | |
8261af74 WD |
1191 | #ifdef HAVE_SIGACTION |
1192 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1193 | sigset_t sigmask; |
5d6bcd44 | 1194 | |
60ee01f5 | 1195 | sigemptyset(&sigmask); |
8261af74 | 1196 | # endif |
60ee01f5 WD |
1197 | sigact.sa_flags = SA_NOCLDSTOP; |
1198 | #endif | |
1199 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1200 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1201 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1202 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1203 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1204 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1205 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1206 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1207 | #endif | |
5d6bcd44 | 1208 | |
7a6421fa | 1209 | starttime = time(NULL); |
6fe05820 | 1210 | am_root = (MY_UID() == 0); |
c627d613 | 1211 | |
a800434a AT |
1212 | memset(&stats, 0, sizeof(stats)); |
1213 | ||
df5e03da AT |
1214 | if (argc < 2) { |
1215 | usage(FERROR); | |
65417579 | 1216 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1217 | } |
1218 | ||
7a6421fa | 1219 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1220 | * carried across */ |
05278935 | 1221 | orig_umask = umask(0); |
5d6bcd44 | 1222 | |
eb598fac WD |
1223 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1224 | setlocale(LC_CTYPE, ""); | |
1225 | #endif | |
1226 | ||
50135767 | 1227 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1228 | /* FIXME: We ought to call the same error-handling |
1229 | * code here, rather than relying on getopt. */ | |
50135767 | 1230 | option_error(); |
65417579 | 1231 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1232 | } |
5d6bcd44 | 1233 | |
60ee01f5 WD |
1234 | SIGACTMASK(SIGINT, sig_int); |
1235 | SIGACTMASK(SIGHUP, sig_int); | |
1236 | SIGACTMASK(SIGTERM, sig_int); | |
1237 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1238 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1239 | #endif | |
6b83141d | 1240 | |
34758d5c MP |
1241 | /* Ignore SIGPIPE; we consistently check error codes and will |
1242 | * see the EPIPE. */ | |
60ee01f5 | 1243 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1244 | #ifdef SIGXFSZ |
1245 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1246 | #endif | |
34758d5c | 1247 | |
c226b7c2 | 1248 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1249 | * (implemented by forking "pwd" and reading its output) doesn't |
1250 | * work when there are other child processes. Also, on all systems | |
1251 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1252 | push_dir(NULL); |
c226b7c2 | 1253 | |
44e9e221 WD |
1254 | init_flist(); |
1255 | ||
e8a96e27 | 1256 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1257 | if (write_batch) |
66a9dc96 | 1258 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1259 | |
dbbab0c4 WD |
1260 | if (read_batch && strcmp(batch_name, "-") == 0) |
1261 | batch_fd = STDIN_FILENO; | |
1262 | else { | |
1263 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1264 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1265 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1266 | } |
b9f592fb WD |
1267 | if (batch_fd < 0) { |
1268 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1269 | full_fname(batch_name)); |
b9f592fb WD |
1270 | exit_cleanup(RERR_FILEIO); |
1271 | } | |
9459290a WD |
1272 | if (read_batch) |
1273 | read_stream_flags(batch_fd); | |
6902ed17 | 1274 | } |
e8a96e27 WD |
1275 | if (write_batch < 0) |
1276 | dry_run = 1; | |
6902ed17 | 1277 | |
75aeac44 | 1278 | if (am_daemon && !am_server) |
7a6421fa | 1279 | return daemon_main(); |
f0fca04e | 1280 | |
08ac228f AT |
1281 | if (argc < 1) { |
1282 | usage(FERROR); | |
65417579 | 1283 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1284 | } |
1285 | ||
7a6421fa | 1286 | if (am_server) { |
f0359dd0 AT |
1287 | set_nonblocking(STDIN_FILENO); |
1288 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1289 | if (am_daemon) |
1290 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1291 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1292 | } | |
c627d613 | 1293 | |
ff81e809 | 1294 | ret = start_client(argc, argv); |
d9c7edf6 | 1295 | if (ret == -1) |
9098bbf3 | 1296 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1297 | else |
9098bbf3 MP |
1298 | exit_cleanup(ret); |
1299 | ||
0f5a04e3 | 1300 | return ret; |
c627d613 | 1301 | } |