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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 | |
8261af74 WD |
71 | #ifdef HAVE_SIGACTION |
72 | # ifdef HAVE_SIGPROCMASK | |
73 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
74 | # else | |
75 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
76 | # endif | |
60ee01f5 WD |
77 | static struct sigaction sigact; |
78 | #endif | |
79 | ||
ee7118a8 DD |
80 | struct pid_status { |
81 | pid_t pid; | |
84e6d6fd | 82 | int status; |
ee7118a8 DD |
83 | } pid_stat_table[MAXCHILDPROCS]; |
84 | ||
33c4b445 WD |
85 | static time_t starttime, endtime; |
86 | static int64 total_read, total_written; | |
87 | ||
e5a2b854 | 88 | static void show_malloc_stats(void); |
82980a23 | 89 | |
97d8e709 WD |
90 | /* Works like waitpid(), but if we already harvested the child pid in our |
91 | * sigchld_handler(), we succeed instead of returning an error. */ | |
92 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) | |
82980a23 | 93 | { |
97d8e709 | 94 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 95 | |
6fb812f7 | 96 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 WD |
97 | /* Status of requested child no longer available: check to |
98 | * see if it was processed by sigchld_handler(). */ | |
99 | int cnt; | |
84e6d6fd | 100 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 101 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 102 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 103 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 104 | return pid; |
ee7118a8 DD |
105 | } |
106 | } | |
107 | } | |
108 | ||
97d8e709 WD |
109 | return waited_pid; |
110 | } | |
111 | ||
112 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 113 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
114 | { |
115 | pid_t waited_pid; | |
116 | int status; | |
117 | ||
118 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
119 | msleep(20); | |
120 | io_flush(FULL_FLUSH); | |
121 | } | |
122 | ||
d9c7edf6 WD |
123 | /* TODO: If the child exited on a signal, then log an |
124 | * appropriate error message. Perhaps we should also accept a | |
125 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 126 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
127 | if (waited_pid < 0) { |
128 | rsyserr(FERROR, errno, "waitpid"); | |
129 | *exit_code_ptr = RERR_WAITCHILD; | |
130 | } else if (!WIFEXITED(status)) { | |
40e6752f | 131 | #ifdef WCOREDUMP |
dbefb6b4 | 132 | if (WCOREDUMP(status)) |
84e6d6fd | 133 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
134 | else |
135 | #endif | |
136 | if (WIFSIGNALED(status)) | |
84e6d6fd | 137 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 138 | else |
84e6d6fd | 139 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 140 | } else |
84e6d6fd | 141 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
142 | } |
143 | ||
b9f592fb WD |
144 | /* This function gets called from all 3 processes. We want the client side |
145 | * to actually output the text, but the sender is the only process that has | |
146 | * all the stats we need. So, if we're a client sender, we do the report. | |
147 | * If we're a server sender, we write the stats on the supplied fd. If | |
148 | * we're the client receiver we read the stats from the supplied fd and do | |
149 | * the report. All processes might also generate a set of debug stats, if | |
150 | * the verbose level is high enough (this is the only thing that the | |
151 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 152 | static void handle_stats(int f) |
c627d613 | 153 | { |
33c4b445 WD |
154 | endtime = time(NULL); |
155 | ||
b9f592fb | 156 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
157 | total_read = stats.total_read; |
158 | total_written = stats.total_written; | |
7a6421fa | 159 | |
7bb7058e | 160 | if (do_stats && verbose > 1) { |
5c15e29f | 161 | /* These come out from every process */ |
7bb7058e | 162 | show_malloc_stats(); |
86943126 | 163 | show_flist_stats(); |
5c15e29f MP |
164 | } |
165 | ||
e5fbaa71 S |
166 | if (am_generator) |
167 | return; | |
168 | ||
248fbb8c | 169 | if (am_daemon) { |
a9766ef1 | 170 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
171 | if (f == -1 || !am_sender) |
172 | return; | |
248fbb8c AT |
173 | } |
174 | ||
e19452a9 | 175 | if (am_server) { |
3e491682 | 176 | if (am_sender) { |
b9f592fb WD |
177 | write_longint(f, total_read); |
178 | write_longint(f, total_written); | |
179 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
180 | if (protocol_version >= 29) { |
181 | write_longint(f, stats.flist_buildtime); | |
182 | write_longint(f, stats.flist_xfertime); | |
183 | } | |
e19452a9 | 184 | } |
7a6421fa AT |
185 | return; |
186 | } | |
e19452a9 DD |
187 | |
188 | /* this is the client */ | |
d9c7edf6 | 189 | |
9d19f8a5 WD |
190 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
191 | ; | |
192 | else if (!am_sender) { | |
58c5c245 WD |
193 | /* Read the first two in opposite order because the meaning of |
194 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
195 | total_written = read_longint(f); |
196 | total_read = read_longint(f); | |
a800434a | 197 | stats.total_size = read_longint(f); |
f0f7e760 WD |
198 | if (protocol_version >= 29) { |
199 | stats.flist_buildtime = read_longint(f); | |
200 | stats.flist_xfertime = read_longint(f); | |
201 | } | |
e4676bb5 | 202 | } else if (write_batch) { |
b9f592fb WD |
203 | /* The --read-batch process is going to be a client |
204 | * receiver, so we need to give it the stats. */ | |
205 | write_longint(batch_fd, total_read); | |
206 | write_longint(batch_fd, total_written); | |
207 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
208 | if (protocol_version >= 29) { |
209 | write_longint(batch_fd, stats.flist_buildtime); | |
210 | write_longint(batch_fd, stats.flist_xfertime); | |
211 | } | |
a800434a | 212 | } |
e4676bb5 | 213 | } |
a800434a | 214 | |
e4676bb5 WD |
215 | static void output_summary(void) |
216 | { | |
a800434a | 217 | if (do_stats) { |
1f658d42 | 218 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
219 | rprintf(FINFO,"Number of files transferred: %d\n", |
220 | stats.num_transferred_files); | |
60613dc8 WD |
221 | rprintf(FINFO,"Total file size: %s bytes\n", |
222 | human_num(stats.total_size)); | |
223 | rprintf(FINFO,"Total transferred file size: %s bytes\n", | |
224 | human_num(stats.total_transferred_size)); | |
225 | rprintf(FINFO,"Literal data: %s bytes\n", | |
226 | human_num(stats.literal_data)); | |
227 | rprintf(FINFO,"Matched data: %s bytes\n", | |
228 | human_num(stats.matched_data)); | |
1f658d42 | 229 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
230 | if (stats.flist_buildtime) { |
231 | rprintf(FINFO, | |
232 | "File list generation time: %.3f seconds\n", | |
233 | (double)stats.flist_buildtime / 1000); | |
234 | rprintf(FINFO, | |
235 | "File list transfer time: %.3f seconds\n", | |
236 | (double)stats.flist_xfertime / 1000); | |
237 | } | |
60613dc8 WD |
238 | rprintf(FINFO,"Total bytes sent: %s\n", |
239 | human_num(total_written)); | |
240 | rprintf(FINFO,"Total bytes received: %s\n", | |
241 | human_num(total_read)); | |
7a6421fa | 242 | } |
d9c7edf6 | 243 | |
e19452a9 | 244 | if (verbose || do_stats) { |
b9f592fb | 245 | rprintf(FINFO, |
60613dc8 WD |
246 | "\nsent %s bytes received %s bytes %s bytes/sec\n", |
247 | human_num(total_written), human_num(total_read), | |
248 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
249 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
250 | human_num(stats.total_size), | |
b9f592fb | 251 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 252 | } |
fc8a6b97 AT |
253 | |
254 | fflush(stdout); | |
255 | fflush(stderr); | |
c627d613 AT |
256 | } |
257 | ||
258 | ||
e5a2b854 MP |
259 | /** |
260 | * If our C library can get malloc statistics, then show them to FINFO | |
261 | **/ | |
262 | static void show_malloc_stats(void) | |
263 | { | |
4f5b0756 | 264 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
265 | struct mallinfo mi; |
266 | ||
267 | mi = mallinfo(); | |
268 | ||
ce672562 | 269 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
270 | getpid(), am_server ? "server " : "", |
271 | am_daemon ? "daemon " : "", who_am_i()); | |
272 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
273 | (long)mi.arena); | |
274 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
275 | (long)mi.ordblks); | |
276 | rprintf(FINFO, " smblks: %10ld\n", | |
277 | (long)mi.smblks); | |
278 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
279 | (long)mi.hblks); | |
280 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
281 | (long)mi.hblkhd); | |
282 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
283 | (long)mi.arena + mi.hblkhd); | |
284 | rprintf(FINFO, " usmblks: %10ld\n", | |
285 | (long)mi.usmblks); | |
286 | rprintf(FINFO, " fsmblks: %10ld\n", | |
287 | (long)mi.fsmblks); | |
288 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
289 | (long)mi.uordblks); | |
290 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
291 | (long)mi.fordblks); | |
292 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
293 | (long)mi.keepcost); | |
e5a2b854 MP |
294 | #endif /* HAVE_MALLINFO */ |
295 | } | |
296 | ||
297 | ||
0882faa2 | 298 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
299 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
300 | int *f_in, int *f_out) | |
c627d613 | 301 | { |
6c2e5b56 | 302 | int i, argc = 0; |
887e553f | 303 | char *args[MAX_ARGS]; |
19b27a48 | 304 | pid_t ret; |
82f0c63e | 305 | char *dir = NULL; |
bb4aa89c | 306 | int dash_l_set = 0; |
366345fe | 307 | |
088aac85 | 308 | if (!read_batch && !local_server) { |
82f0c63e | 309 | char *t, *f, in_quote = '\0'; |
9af87151 | 310 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 311 | if (!cmd) |
9af87151 | 312 | cmd = rsh_env; |
366345fe AT |
313 | if (!cmd) |
314 | cmd = RSYNC_RSH; | |
315 | cmd = strdup(cmd); | |
d9c7edf6 | 316 | if (!cmd) |
366345fe AT |
317 | goto oom; |
318 | ||
82f0c63e WD |
319 | for (t = f = cmd; *f; f++) { |
320 | if (*f == ' ') | |
321 | continue; | |
e7a392c7 | 322 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 323 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 324 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
325 | exit_cleanup(RERR_SYNTAX); |
326 | } | |
82f0c63e WD |
327 | args[argc++] = t; |
328 | while (*f != ' ' || in_quote) { | |
329 | if (!*f) { | |
330 | if (in_quote) { | |
331 | rprintf(FERROR, | |
332 | "Missing trailing-%c in remote-shell command.\n", | |
333 | in_quote); | |
334 | exit_cleanup(RERR_SYNTAX); | |
335 | } | |
336 | f--; | |
337 | break; | |
338 | } | |
339 | if (*f == '\'' || *f == '"') { | |
340 | if (!in_quote) { | |
341 | in_quote = *f++; | |
342 | continue; | |
343 | } | |
344 | if (*f == in_quote && *++f != in_quote) { | |
345 | in_quote = '\0'; | |
346 | continue; | |
347 | } | |
348 | } | |
349 | *t++ = *f++; | |
350 | } | |
351 | *t++ = '\0'; | |
887e553f | 352 | } |
c627d613 | 353 | |
d9c7edf6 | 354 | /* check to see if we've already been given '-l user' in |
9af87151 | 355 | * the remote-shell command */ |
bb4aa89c WD |
356 | for (i = 0; i < argc-1; i++) { |
357 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
358 | dash_l_set = 1; | |
359 | } | |
360 | ||
4f5b0756 | 361 | #ifdef HAVE_REMSH |
366345fe AT |
362 | /* remsh (on HPUX) takes the arguments the other way around */ |
363 | args[argc++] = machine; | |
bb4aa89c | 364 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
365 | args[argc++] = "-l"; |
366 | args[argc++] = user; | |
367 | } | |
7b8356d0 | 368 | #else |
bb4aa89c | 369 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
370 | args[argc++] = "-l"; |
371 | args[argc++] = user; | |
372 | } | |
373 | args[argc++] = machine; | |
7b8356d0 | 374 | #endif |
c627d613 | 375 | |
366345fe | 376 | args[argc++] = rsync_path; |
c627d613 | 377 | |
9af87151 | 378 | if (blocking_io < 0) { |
90e22f4b WD |
379 | char *cp; |
380 | if ((cp = strrchr(cmd, '/')) != NULL) | |
381 | cp++; | |
382 | else | |
383 | cp = cmd; | |
384 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
385 | blocking_io = 1; | |
66b71163 | 386 | } |
e384bfbd | 387 | |
93689aa5 | 388 | server_options(args,&argc); |
e7a392c7 WD |
389 | |
390 | if (argc >= MAX_ARGS - 2) { | |
391 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
392 | exit_cleanup(RERR_SYNTAX); | |
393 | } | |
366345fe | 394 | } |
c627d613 | 395 | |
366345fe | 396 | args[argc++] = "."; |
76076c4b | 397 | |
d9c7edf6 | 398 | if (!daemon_over_rsh && path && *path) |
366345fe | 399 | args[argc++] = path; |
c627d613 | 400 | |
366345fe | 401 | args[argc] = NULL; |
c627d613 | 402 | |
366345fe | 403 | if (verbose > 3) { |
e7a392c7 | 404 | for (i = 0; i < argc; i++) |
45c49b52 | 405 | rprintf(FINFO, "cmd[%d]=%s ", i, args[i]); |
82f0c63e | 406 | rprintf(FINFO, "\n"); |
366345fe AT |
407 | } |
408 | ||
c0d8e84c WD |
409 | if (read_batch) { |
410 | int from_gen_pipe[2]; | |
411 | if (fd_pair(from_gen_pipe) < 0) { | |
412 | rsyserr(FERROR, errno, "pipe"); | |
413 | exit_cleanup(RERR_IPC); | |
414 | } | |
415 | batch_gen_fd = from_gen_pipe[0]; | |
416 | *f_out = from_gen_pipe[1]; | |
417 | *f_in = batch_fd; | |
418 | ret = -1; /* no child pid */ | |
419 | } else if (local_server) { | |
b1df18d7 WD |
420 | /* If the user didn't request --[no-]whole-file, force |
421 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 422 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 423 | whole_file = 1; |
25d34a5c | 424 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 425 | } else |
366345fe | 426 | ret = piped_child(args,f_in,f_out); |
c627d613 | 427 | |
3a69fad0 WD |
428 | if (dir) |
429 | free(dir); | |
82306bf6 | 430 | |
366345fe | 431 | return ret; |
c627d613 | 432 | |
acee11fc | 433 | oom: |
366345fe AT |
434 | out_of_memory("do_cmd"); |
435 | return 0; /* not reached */ | |
c627d613 AT |
436 | } |
437 | ||
eb598fac WD |
438 | /* The receiving side operates in one of two modes: |
439 | * | |
440 | * 1. it enters a directory and receives one or more files, placing them | |
441 | * according to their names in the file-list. | |
442 | * | |
443 | * 2. it receives a single file and saves it using the name in the | |
444 | * destination path instead of its file-list name. This requires a | |
445 | * "local name" for writing out the destination file. | |
446 | * | |
447 | * So, our task is to figure out what mode/local-name we need and return | |
448 | * either a NULL for mode 1, or the local-name for mode 2. We also | |
449 | * change directory if there are any path components in dest_path. */ | |
450 | static char *get_local_name(struct file_list *flist, char *dest_path) | |
c627d613 | 451 | { |
7a6421fa | 452 | STRUCT_STAT st; |
eb598fac | 453 | char *cp; |
c627d613 | 454 | |
eb598fac WD |
455 | if (verbose > 2) { |
456 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
457 | flist->count, NS(dest_path)); | |
458 | } | |
1f0610ef | 459 | |
eb598fac | 460 | if (!dest_path) |
1f0610ef | 461 | return NULL; |
c95da96a | 462 | |
eb598fac WD |
463 | /* If the destination path refers to an existing directory, enter |
464 | * it and use mode 1. If there is something other than a directory | |
465 | * at the destination path, we must be transferring one file | |
466 | * (anything at the destination will be overwritten). */ | |
467 | if (do_stat(dest_path, &st) == 0) { | |
1ff5450d | 468 | if (S_ISDIR(st.st_mode)) { |
eb598fac | 469 | if (!push_dir(dest_path)) { |
982e05bb | 470 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 471 | full_fname(dest_path)); |
65417579 | 472 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
473 | } |
474 | return NULL; | |
475 | } | |
476 | if (flist->count > 1) { | |
eb598fac WD |
477 | rprintf(FERROR, |
478 | "ERROR: destination must be a directory when" | |
479 | " copying more than 1 file\n"); | |
65417579 | 480 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 481 | } |
1ff5450d AT |
482 | } |
483 | ||
eb598fac WD |
484 | cp = strrchr(dest_path, '/'); |
485 | ||
486 | /* If the destination path ends in a slash or we are transferring | |
487 | * multiple files, create a directory at the destination path, | |
488 | * enter the new directory, and use mode 1. */ | |
489 | if (flist->count > 1 || (cp && !cp[1])) { | |
490 | /* Lop off the final slash (if any). */ | |
491 | if (cp && !cp[1]) | |
492 | *cp = '\0'; | |
493 | ||
494 | umask(orig_umask); | |
495 | if (do_mkdir(dest_path, 0777) != 0) { | |
496 | rsyserr(FERROR, errno, "mkdir %s failed", | |
497 | full_fname(dest_path)); | |
498 | exit_cleanup(RERR_FILEIO); | |
499 | } | |
500 | umask(0); | |
1ff5450d | 501 | |
eb598fac WD |
502 | if (verbose) |
503 | rprintf(FINFO, "created directory %s\n", dest_path); | |
504 | ||
505 | if (dry_run) { | |
506 | /* Indicate that the destination directory doesn't | |
507 | * really exist and return mode 1. */ | |
508 | dry_run++; | |
509 | return NULL; | |
510 | } | |
511 | ||
512 | if (!push_dir(dest_path)) { | |
513 | rsyserr(FERROR, errno, "push_dir#2 %s failed", | |
514 | full_fname(dest_path)); | |
515 | exit_cleanup(RERR_FILESELECT); | |
516 | } | |
e5a96f0f | 517 | |
e5a96f0f | 518 | return NULL; |
1ff5450d AT |
519 | } |
520 | ||
eb598fac WD |
521 | /* Otherwise, we are writing a single file, possibly on top of an |
522 | * existing non-directory. Change to the item's parent directory | |
523 | * (if it has a path component), return the basename of the | |
524 | * destination file as the local name, and use mode 2. */ | |
525 | if (!cp) | |
526 | return dest_path; | |
527 | ||
528 | if (cp == dest_path) | |
529 | dest_path = "/"; | |
530 | ||
531 | *cp = '\0'; | |
532 | if (!push_dir(dest_path)) { | |
533 | rsyserr(FERROR, errno, "push_dir#3 %s failed", | |
534 | full_fname(dest_path)); | |
65417579 | 535 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 536 | } |
eb598fac | 537 | *cp = '/'; |
1ff5450d | 538 | |
eb598fac | 539 | return cp + 1; |
c627d613 AT |
540 | } |
541 | ||
542 | ||
1a8e5c97 | 543 | /* This is only called by the sender. */ |
3485ae83 | 544 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 545 | { |
1a8e5c97 WD |
546 | int i; |
547 | ||
548 | if (protocol_version < 29) | |
549 | i = read_int(f_in); | |
550 | else { | |
3485ae83 | 551 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
552 | && read_shortint(f_in) == ITEM_IS_NEW) { |
553 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 554 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
555 | write_shortint(f_out, ITEM_IS_NEW); |
556 | } | |
4e0fcd85 WD |
557 | } |
558 | ||
1a8e5c97 | 559 | if (i != -1) { |
c7791b8c WD |
560 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
561 | i, who_am_i()); | |
1a8e5c97 | 562 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
563 | } |
564 | } | |
565 | ||
566 | ||
eb598fac | 567 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 568 | { |
7a6421fa AT |
569 | struct file_list *flist; |
570 | char *dir = argv[0]; | |
c627d613 | 571 | |
45e08edb WD |
572 | if (verbose > 2) { |
573 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
574 | (long)getpid()); | |
575 | } | |
d9c7edf6 | 576 | |
2adbcdc7 | 577 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
578 | rprintf(FERROR, "ERROR: module is write only\n"); |
579 | exit_cleanup(RERR_SYNTAX); | |
580 | return; | |
581 | } | |
bf26aa22 WD |
582 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
583 | rprintf(FERROR, | |
584 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
585 | exit_cleanup(RERR_SYNTAX); | |
586 | return; | |
587 | } | |
7a92ded3 | 588 | |
59187666 | 589 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
590 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
591 | full_fname(dir)); | |
65417579 | 592 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
593 | } |
594 | argc--; | |
595 | argv++; | |
d9c7edf6 | 596 | |
48a1ff0d | 597 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 598 | argc = 1; |
7a6421fa AT |
599 | argv--; |
600 | argv[0] = "."; | |
601 | } | |
d9c7edf6 | 602 | |
7a6421fa | 603 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
604 | if (!flist || flist->count == 0) { |
605 | exit_cleanup(0); | |
606 | } | |
a00628b3 | 607 | the_file_list = flist; |
8d9dc9f9 | 608 | |
da3478b2 WD |
609 | io_start_buffering_in(); |
610 | io_start_buffering_out(); | |
611 | ||
7a6421fa | 612 | send_files(flist,f_out,f_in); |
f1e3656e | 613 | io_flush(FULL_FLUSH); |
33c4b445 | 614 | handle_stats(f_out); |
4e0fcd85 | 615 | if (protocol_version >= 24) |
3485ae83 | 616 | read_final_goodbye(f_in, f_out); |
f1e3656e | 617 | io_flush(FULL_FLUSH); |
7a6421fa | 618 | exit_cleanup(0); |
c627d613 AT |
619 | } |
620 | ||
621 | ||
dc5ddbcc AT |
622 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
623 | { | |
d186eb1a | 624 | int pid; |
84e6d6fd | 625 | int exit_code = 0; |
c70e07d9 | 626 | int error_pipe[2]; |
dc5ddbcc | 627 | |
bb6721dc WD |
628 | /* The receiving side mustn't obey this, or an existing symlink that |
629 | * points to an identical file won't be replaced by the referent. */ | |
630 | copy_links = 0; | |
631 | ||
d186eb1a | 632 | if (preserve_hard_links) |
3485ae83 | 633 | init_hard_links(); |
dc5ddbcc | 634 | |
c70e07d9 | 635 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 636 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 637 | exit_cleanup(RERR_IPC); |
554e0a8d | 638 | } |
d9c7edf6 | 639 | |
f1e3656e | 640 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 641 | |
ba449e44 | 642 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 643 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
644 | exit_cleanup(RERR_IPC); |
645 | } | |
646 | ||
647 | if (pid == 0) { | |
554e0a8d | 648 | close(error_pipe[0]); |
3a69fad0 WD |
649 | if (f_in != f_out) |
650 | close(f_out); | |
e08c9610 | 651 | |
554e0a8d | 652 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 653 | close_multiplexing_out(); |
554e0a8d AT |
654 | |
655 | /* set place to send errors */ | |
f1e3656e | 656 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 657 | |
c70e07d9 | 658 | recv_files(f_in, flist, local_name); |
f1e3656e | 659 | io_flush(FULL_FLUSH); |
33c4b445 | 660 | handle_stats(f_in); |
e08c9610 | 661 | |
f1e3656e WD |
662 | send_msg(MSG_DONE, "", 0); |
663 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 664 | |
40df65fd WD |
665 | /* Handle any keep-alive packets from the post-processing work |
666 | * that the generator does. */ | |
4e0fcd85 | 667 | if (protocol_version >= 29) { |
051182cb | 668 | kluge_around_eof = -1; |
1a8e5c97 WD |
669 | |
670 | /* This should only get stopped via a USR2 signal. */ | |
671 | while (read_int(f_in) == flist->count | |
672 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
673 | ||
3485ae83 WD |
674 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
675 | who_am_i()); | |
1a8e5c97 | 676 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
677 | } |
678 | ||
9e0582f9 WD |
679 | /* Finally, we go to sleep until our parent kills us with a |
680 | * USR2 signal. We sleep for a short time, as on some OSes | |
681 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
682 | while (1) |
683 | msleep(20); | |
d186eb1a | 684 | } |
dc5ddbcc | 685 | |
b695f242 | 686 | am_generator = 1; |
9eeb3b9c | 687 | close_multiplexing_in(); |
e8a96e27 | 688 | if (write_batch && !am_server) |
b9f592fb | 689 | stop_write_batch(); |
b695f242 | 690 | |
554e0a8d | 691 | close(error_pipe[1]); |
3a69fad0 WD |
692 | if (f_in != f_out) |
693 | close(f_in); | |
e1b3d5c4 | 694 | |
da3478b2 | 695 | io_start_buffering_out(); |
b3e10ed7 | 696 | |
f1e3656e | 697 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 698 | |
c70e07d9 | 699 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 700 | |
33c4b445 | 701 | handle_stats(-1); |
f1e3656e | 702 | io_flush(FULL_FLUSH); |
d04e9c51 | 703 | if (protocol_version >= 24) { |
8ada7518 AT |
704 | /* send a final goodbye message */ |
705 | write_int(f_out, -1); | |
706 | } | |
f1e3656e | 707 | io_flush(FULL_FLUSH); |
8ada7518 | 708 | |
f1e3656e | 709 | set_msg_fd_in(-1); |
089a2435 | 710 | kill(pid, SIGUSR2); |
84e6d6fd WD |
711 | wait_process_with_flush(pid, &exit_code); |
712 | return exit_code; | |
dc5ddbcc AT |
713 | } |
714 | ||
c627d613 | 715 | |
9486289c | 716 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 717 | { |
84e6d6fd | 718 | int exit_code; |
7a6421fa | 719 | struct file_list *flist; |
6c2e5b56 | 720 | char *local_name = NULL; |
7a6421fa | 721 | char *dir = NULL; |
07bff66f WD |
722 | int save_verbose = verbose; |
723 | ||
724 | if (filesfrom_fd >= 0) { | |
725 | /* We can't mix messages with files-from data on the socket, | |
726 | * so temporarily turn off verbose messages. */ | |
727 | verbose = 0; | |
728 | } | |
f0fca04e | 729 | |
45e08edb WD |
730 | if (verbose > 2) { |
731 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
732 | argc, (long)getpid()); | |
733 | } | |
09b7f5db | 734 | |
2adbcdc7 | 735 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
736 | rprintf(FERROR,"ERROR: module is read only\n"); |
737 | exit_cleanup(RERR_SYNTAX); | |
738 | return; | |
739 | } | |
740 | ||
7a6421fa AT |
741 | if (argc > 0) { |
742 | dir = argv[0]; | |
743 | argc--; | |
744 | argv++; | |
59187666 | 745 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
746 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
747 | full_fname(dir)); | |
65417579 | 748 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 749 | } |
7a6421fa | 750 | } |
c627d613 | 751 | |
da3478b2 | 752 | io_start_buffering_in(); |
57dee64e | 753 | recv_filter_list(f_in); |
c627d613 | 754 | |
7c2a9e76 | 755 | if (filesfrom_fd >= 0) { |
07bff66f WD |
756 | /* We need to send the files-from names to the sender at the |
757 | * same time that we receive the file-list from them, so we | |
758 | * need the IO routines to automatically write out the names | |
759 | * onto our f_out socket as we read the file-list. This | |
760 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
761 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
762 | filesfrom_fd = -1; | |
763 | } | |
764 | ||
b9f592fb | 765 | flist = recv_file_list(f_in); |
07bff66f | 766 | verbose = save_verbose; |
4c36a13e AT |
767 | if (!flist) { |
768 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 769 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 770 | } |
a00628b3 | 771 | the_file_list = flist; |
d9c7edf6 | 772 | |
29fad7a3 | 773 | if (argc > 0) |
7a6421fa | 774 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 775 | |
84e6d6fd WD |
776 | exit_code = do_recv(f_in,f_out,flist,local_name); |
777 | exit_cleanup(exit_code); | |
c627d613 AT |
778 | } |
779 | ||
780 | ||
734a94a2 | 781 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
782 | { |
783 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 784 | return 0; |
25d34a5c MP |
785 | } |
786 | ||
787 | ||
9486289c | 788 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 789 | { |
f0359dd0 AT |
790 | set_nonblocking(f_in); |
791 | set_nonblocking(f_out); | |
792 | ||
da3478b2 WD |
793 | io_set_sock_fds(f_in, f_out); |
794 | setup_protocol(f_out, f_in); | |
595251de | 795 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
796 | setup_iconv(); |
797 | #endif | |
da3478b2 | 798 | |
d04e9c51 | 799 | if (protocol_version >= 23) |
da3478b2 | 800 | io_start_multiplex_out(); |
7a6421fa | 801 | |
7a6421fa | 802 | if (am_sender) { |
83926d3c | 803 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
804 | if (need_messages_from_generator) |
805 | io_start_multiplex_in(); | |
9b3318b0 | 806 | |
7842418b | 807 | recv_filter_list(f_in); |
7a6421fa AT |
808 | do_server_sender(f_in, f_out, argc, argv); |
809 | } else { | |
810 | do_server_recv(f_in, f_out, argc, argv); | |
811 | } | |
812 | exit_cleanup(0); | |
366345fe AT |
813 | } |
814 | ||
0ba48136 MP |
815 | |
816 | /* | |
817 | * This is called once the connection has been negotiated. It is used | |
818 | * for rsyncd, remote-shell, and local connections. | |
819 | */ | |
19b27a48 | 820 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 821 | { |
088aac85 | 822 | struct file_list *flist = NULL; |
84e6d6fd | 823 | int exit_code = 0, exit_code2 = 0; |
9486289c | 824 | char *local_name = NULL; |
19b27a48 AT |
825 | |
826 | cleanup_child_pid = pid; | |
67a28eb2 | 827 | if (!read_batch) { |
b9f592fb WD |
828 | set_nonblocking(f_in); |
829 | set_nonblocking(f_out); | |
830 | } | |
f0359dd0 | 831 | |
da3478b2 | 832 | io_set_sock_fds(f_in, f_out); |
6d7b6081 | 833 | setup_protocol(f_out,f_in); |
595251de | 834 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
835 | setup_iconv(); |
836 | #endif | |
6d7b6081 | 837 | |
b9f592fb | 838 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 839 | io_start_multiplex_in(); |
d9c7edf6 | 840 | |
18882701 WD |
841 | /* We set our stderr file handle to blocking because ssh might have |
842 | * set it to non-blocking. This can be particularly troublesome if | |
843 | * stderr is a clone of stdout, because ssh would have set our stdout | |
844 | * to non-blocking at the same time (which can easily cause us to lose | |
845 | * output from our print statements). This kluge shouldn't cause ssh | |
846 | * any problems for how we use it. Note also that we delayed setting | |
847 | * this until after the above protocol setup so that we know for sure | |
848 | * that ssh is done twiddling its file descriptors. */ | |
849 | set_blocking(STDERR_FILENO); | |
850 | ||
9486289c | 851 | if (am_sender) { |
83926d3c | 852 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 853 | io_start_buffering_out(); |
860236bf | 854 | if (!filesfrom_host) |
a0a33ee5 | 855 | set_msg_fd_in(f_in); |
57dee64e | 856 | send_filter_list(f_out); |
860236bf | 857 | if (filesfrom_host) |
7c2a9e76 | 858 | filesfrom_fd = f_in; |
b9f592fb | 859 | |
e8a96e27 | 860 | if (write_batch && !am_server) |
b9f592fb | 861 | start_write_batch(f_out); |
a00628b3 | 862 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 863 | set_msg_fd_in(-1); |
d9c7edf6 | 864 | if (verbose > 3) |
9486289c | 865 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 866 | the_file_list = flist; |
e1b3d5c4 | 867 | |
f1e3656e | 868 | io_flush(NORMAL_FLUSH); |
9486289c | 869 | send_files(flist,f_out,f_in); |
f1e3656e | 870 | io_flush(FULL_FLUSH); |
33c4b445 | 871 | handle_stats(-1); |
4e0fcd85 | 872 | if (protocol_version >= 24) |
3485ae83 | 873 | read_final_goodbye(f_in, f_out); |
9486289c AT |
874 | if (pid != -1) { |
875 | if (verbose > 3) | |
08a740ff | 876 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 877 | io_flush(FULL_FLUSH); |
84e6d6fd | 878 | wait_process_with_flush(pid, &exit_code); |
9486289c | 879 | } |
33c4b445 | 880 | output_summary(); |
c87ae64a | 881 | io_flush(FULL_FLUSH); |
84e6d6fd | 882 | exit_cleanup(exit_code); |
9486289c | 883 | } |
f7632fc6 | 884 | |
bf26aa22 WD |
885 | if (need_messages_from_generator && !read_batch) |
886 | io_start_multiplex_out(); | |
887 | ||
48a1ff0d WD |
888 | if (argc == 0) |
889 | list_only |= 1; | |
d9c7edf6 | 890 | |
57dee64e | 891 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 892 | |
7c2a9e76 WD |
893 | if (filesfrom_fd >= 0) { |
894 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
895 | filesfrom_fd = -1; | |
896 | } | |
897 | ||
e8a96e27 | 898 | if (write_batch && !am_server) |
b9f592fb | 899 | start_write_batch(f_in); |
9486289c | 900 | flist = recv_file_list(f_in); |
a00628b3 | 901 | the_file_list = flist; |
d9c7edf6 | 902 | |
9d19f8a5 WD |
903 | if (flist && flist->count > 0) { |
904 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 905 | |
84e6d6fd | 906 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
907 | } else { |
908 | handle_stats(-1); | |
909 | output_summary(); | |
910 | } | |
d9c7edf6 | 911 | |
9486289c | 912 | if (pid != -1) { |
8d9dc9f9 | 913 | if (verbose > 3) |
08a740ff | 914 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 915 | io_flush(FULL_FLUSH); |
84e6d6fd | 916 | wait_process_with_flush(pid, &exit_code); |
9486289c | 917 | } |
d9c7edf6 | 918 | |
84e6d6fd | 919 | return MAX(exit_code, exit_code2); |
9486289c AT |
920 | } |
921 | ||
7169bb4a MP |
922 | static int copy_argv (char *argv[]) |
923 | { | |
924 | int i; | |
925 | ||
926 | for (i = 0; argv[i]; i++) { | |
927 | if (!(argv[i] = strdup(argv[i]))) { | |
928 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
929 | __FILE__, __LINE__); | |
930 | return RERR_MALLOC; | |
931 | } | |
932 | } | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | ||
c1a04ecb | 938 | /** |
0ba48136 MP |
939 | * Start a client for either type of remote connection. Work out |
940 | * whether the arguments request a remote shell or rsyncd connection, | |
941 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
942 | * |
943 | * Calls either start_socket_client (for sockets) or do_cmd and | |
944 | * client_run (for ssh). | |
c1a04ecb | 945 | **/ |
fc8a6b97 | 946 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
947 | { |
948 | char *p; | |
949 | char *shell_machine = NULL; | |
950 | char *shell_path = NULL; | |
951 | char *shell_user = NULL; | |
19b27a48 AT |
952 | int ret; |
953 | pid_t pid; | |
5d6bcd44 | 954 | int f_in,f_out; |
7169bb4a MP |
955 | int rc; |
956 | ||
957 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 958 | * command line. */ |
75aeac44 | 959 | if ((rc = copy_argv(argv))) |
7169bb4a | 960 | return rc; |
5d6bcd44 | 961 | |
d16c245f | 962 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 963 | argc--; |
860236bf WD |
964 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
965 | if (shell_path) { /* source is remote */ | |
9425918d WD |
966 | char *dummy1; |
967 | int dummy2; | |
3f7bfac2 | 968 | if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { |
9425918d WD |
969 | rprintf(FERROR, |
970 | "The source and destination cannot both be remote.\n"); | |
971 | exit_cleanup(RERR_SYNTAX); | |
972 | } | |
42ccb4c0 | 973 | argv++; |
860236bf WD |
974 | if (filesfrom_host && *filesfrom_host |
975 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 976 | rprintf(FERROR, |
50b31539 | 977 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
978 | exit_cleanup(RERR_SYNTAX); |
979 | } | |
860236bf | 980 | if (rsync_port) { |
d9c7edf6 | 981 | if (!shell_cmd) { |
860236bf WD |
982 | return start_socket_client(shell_machine, |
983 | shell_path, | |
42ccb4c0 | 984 | argc, argv); |
d9c7edf6 | 985 | } |
d9c7edf6 | 986 | daemon_over_rsh = 1; |
75aeac44 | 987 | } |
3591c066 | 988 | |
42ccb4c0 WD |
989 | am_sender = 0; |
990 | } else { /* source is local, check dest arg */ | |
991 | am_sender = 1; | |
992 | ||
d16c245f | 993 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
994 | usage(FERROR); |
995 | exit_cleanup(RERR_SYNTAX); | |
996 | } | |
a125c82a | 997 | |
42ccb4c0 | 998 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
999 | if (shell_path && filesfrom_host && *filesfrom_host |
1000 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1001 | rprintf(FERROR, |
50b31539 | 1002 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1003 | exit_cleanup(RERR_SYNTAX); |
1004 | } | |
860236bf | 1005 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1006 | local_server = 1; |
860236bf | 1007 | if (filesfrom_host) { |
7c2a9e76 | 1008 | rprintf(FERROR, |
50b31539 | 1009 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1010 | exit_cleanup(RERR_SYNTAX); |
1011 | } | |
860236bf | 1012 | shell_machine = NULL; |
42ccb4c0 | 1013 | shell_path = argv[argc]; |
860236bf | 1014 | } else if (rsync_port) { |
d9c7edf6 | 1015 | if (!shell_cmd) { |
860236bf WD |
1016 | return start_socket_client(shell_machine, |
1017 | shell_path, | |
42ccb4c0 | 1018 | argc, argv); |
d9c7edf6 | 1019 | } |
d9c7edf6 | 1020 | daemon_over_rsh = 1; |
a125c82a | 1021 | } |
5d6bcd44 | 1022 | } |
d16c245f | 1023 | } else { /* read_batch */ |
d9c7edf6 WD |
1024 | local_server = 1; |
1025 | shell_path = argv[argc-1]; | |
860236bf | 1026 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1027 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1028 | exit_cleanup(RERR_SYNTAX); | |
1029 | } | |
6902ed17 MP |
1030 | } |
1031 | ||
5d6bcd44 | 1032 | if (shell_machine) { |
6fc048f4 | 1033 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1034 | if (p) { |
1035 | *p = 0; | |
1036 | shell_user = shell_machine; | |
1037 | shell_machine = p+1; | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | if (verbose > 3) { | |
9486289c | 1042 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1043 | shell_cmd ? shell_cmd : "", |
1044 | shell_machine ? shell_machine : "", | |
1045 | shell_user ? shell_user : "", | |
1046 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1047 | } |
d9c7edf6 | 1048 | |
d16c245f | 1049 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1050 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1051 | usage(FERROR); |
65417579 | 1052 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1053 | } |
27e3e9c9 | 1054 | |
d16c245f | 1055 | /* ... or no dest at all */ |
48a1ff0d WD |
1056 | if (!am_sender && argc == 0) |
1057 | list_only |= 1; | |
d9c7edf6 | 1058 | |
75aeac44 WD |
1059 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1060 | &f_in,&f_out); | |
1061 | ||
1062 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1063 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1064 | if (daemon_over_rsh) { |
1065 | int tmpret; | |
1066 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1067 | f_in, f_out, argc); | |
1068 | if (tmpret < 0) | |
1069 | return tmpret; | |
1070 | } | |
1071 | ||
fc8a6b97 AT |
1072 | ret = client_run(f_in, f_out, pid, argc, argv); |
1073 | ||
1074 | fflush(stdout); | |
1075 | fflush(stderr); | |
1076 | ||
1077 | return ret; | |
5d6bcd44 AT |
1078 | } |
1079 | ||
366345fe | 1080 | |
067669da WD |
1081 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1082 | { | |
6bf32edb | 1083 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1084 | } |
1085 | ||
067669da WD |
1086 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1087 | { | |
33c4b445 WD |
1088 | if (!am_server) |
1089 | output_summary(); | |
40df65fd | 1090 | close_all(); |
33c4b445 WD |
1091 | if (log_got_error) |
1092 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1093 | _exit(0); |
1094 | } | |
1095 | ||
067669da WD |
1096 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1097 | { | |
029c1713 | 1098 | #ifdef WNOHANG |
ee7118a8 DD |
1099 | int cnt, status; |
1100 | pid_t pid; | |
1101 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1102 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1103 | * out we're instead saving the child exit statuses for later use. |
1104 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1105 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1106 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1107 | /* save the child's exit status */ |
1108 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1109 | if (pid_stat_table[cnt].pid == 0) { | |
1110 | pid_stat_table[cnt].pid = pid; | |
1111 | pid_stat_table[cnt].status = status; | |
1112 | break; | |
1113 | } | |
1114 | } | |
ee7118a8 | 1115 | } |
029c1713 | 1116 | #endif |
8261af74 | 1117 | #ifndef HAVE_SIGACTION |
97d8e709 | 1118 | signal(SIGCHLD, sigchld_handler); |
60ee01f5 | 1119 | #endif |
19b27a48 AT |
1120 | } |
1121 | ||
c0531332 MP |
1122 | |
1123 | /** | |
1124 | * This routine catches signals and tries to send them to gdb. | |
1125 | * | |
1126 | * Because it's called from inside a signal handler it ought not to | |
1127 | * use too many library routines. | |
1128 | * | |
1129 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1130 | * debugging without easy access to X. Perhaps use an environment | |
1131 | * variable, or just call a script? | |
1132 | * | |
1133 | * @todo The /proc/ magic probably only works on Linux (and | |
1134 | * Solaris?) Can we be more portable? | |
1135 | **/ | |
1136 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1137 | const char *get_panic_action(void) |
1138 | { | |
1139 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1140 | ||
1141 | if (cmd_fmt) | |
1142 | return cmd_fmt; | |
1143 | else | |
1144 | return "xterm -display :0 -T Panic -n Panic " | |
1145 | "-e gdb /proc/%d/exe %d"; | |
1146 | } | |
1147 | ||
1148 | ||
9fb3f7a9 MP |
1149 | /** |
1150 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1151 | * | |
1152 | * This signal handler is only installed if we were configured with | |
1153 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1154 | * should just look at the environment variable, but I'm a bit leery | |
1155 | * of a signal sending us into a busy loop. | |
1156 | **/ | |
067669da | 1157 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1158 | { |
1159 | char cmd_buf[300]; | |
1160 | int ret; | |
4fdc39dd MP |
1161 | |
1162 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1163 | getpid(), getpid()); |
1164 | ||
1165 | /* Unless we failed to execute gdb, we allow the process to | |
1166 | * continue. I'm not sure if that's right. */ | |
1167 | ret = system(cmd_buf); | |
1168 | if (ret) | |
1169 | _exit(ret); | |
1170 | } | |
1171 | #endif | |
1172 | ||
1173 | ||
5d6bcd44 | 1174 | int main(int argc,char *argv[]) |
d9c7edf6 | 1175 | { |
ff81e809 | 1176 | int ret; |
66a9dc96 WD |
1177 | int orig_argc = argc; |
1178 | char **orig_argv = argv; | |
8261af74 WD |
1179 | #ifdef HAVE_SIGACTION |
1180 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1181 | sigset_t sigmask; |
5d6bcd44 | 1182 | |
60ee01f5 | 1183 | sigemptyset(&sigmask); |
8261af74 | 1184 | # endif |
60ee01f5 WD |
1185 | sigact.sa_flags = SA_NOCLDSTOP; |
1186 | #endif | |
1187 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1188 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
1189 | SIGACTMASK(SIGCHLD, sigchld_handler); | |
c0531332 | 1190 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1191 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1192 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1193 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1194 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1195 | #endif | |
5d6bcd44 | 1196 | |
7a6421fa | 1197 | starttime = time(NULL); |
6fe05820 | 1198 | am_root = (MY_UID() == 0); |
c627d613 | 1199 | |
a800434a AT |
1200 | memset(&stats, 0, sizeof(stats)); |
1201 | ||
df5e03da AT |
1202 | if (argc < 2) { |
1203 | usage(FERROR); | |
65417579 | 1204 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1205 | } |
1206 | ||
7a6421fa | 1207 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1208 | * carried across */ |
7a6421fa | 1209 | orig_umask = (int)umask(0); |
5d6bcd44 | 1210 | |
eb598fac WD |
1211 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1212 | setlocale(LC_CTYPE, ""); | |
1213 | #endif | |
1214 | ||
50135767 | 1215 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1216 | /* FIXME: We ought to call the same error-handling |
1217 | * code here, rather than relying on getopt. */ | |
50135767 | 1218 | option_error(); |
65417579 | 1219 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1220 | } |
5d6bcd44 | 1221 | |
60ee01f5 WD |
1222 | SIGACTMASK(SIGINT, sig_int); |
1223 | SIGACTMASK(SIGHUP, sig_int); | |
1224 | SIGACTMASK(SIGTERM, sig_int); | |
1225 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1226 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1227 | #endif | |
6b83141d | 1228 | |
34758d5c MP |
1229 | /* Ignore SIGPIPE; we consistently check error codes and will |
1230 | * see the EPIPE. */ | |
60ee01f5 | 1231 | SIGACTION(SIGPIPE, SIG_IGN); |
34758d5c | 1232 | |
c226b7c2 | 1233 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1234 | * (implemented by forking "pwd" and reading its output) doesn't |
1235 | * work when there are other child processes. Also, on all systems | |
1236 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1237 | push_dir(NULL); |
c226b7c2 | 1238 | |
44e9e221 WD |
1239 | init_flist(); |
1240 | ||
e8a96e27 | 1241 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1242 | if (write_batch) |
66a9dc96 | 1243 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1244 | |
dbbab0c4 WD |
1245 | if (read_batch && strcmp(batch_name, "-") == 0) |
1246 | batch_fd = STDIN_FILENO; | |
1247 | else { | |
1248 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1249 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1250 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1251 | } |
b9f592fb WD |
1252 | if (batch_fd < 0) { |
1253 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1254 | full_fname(batch_name)); |
b9f592fb WD |
1255 | exit_cleanup(RERR_FILEIO); |
1256 | } | |
9459290a WD |
1257 | if (read_batch) |
1258 | read_stream_flags(batch_fd); | |
6902ed17 | 1259 | } |
e8a96e27 WD |
1260 | if (write_batch < 0) |
1261 | dry_run = 1; | |
6902ed17 | 1262 | |
75aeac44 | 1263 | if (am_daemon && !am_server) |
7a6421fa | 1264 | return daemon_main(); |
f0fca04e | 1265 | |
08ac228f AT |
1266 | if (argc < 1) { |
1267 | usage(FERROR); | |
65417579 | 1268 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1269 | } |
1270 | ||
7a6421fa | 1271 | if (am_server) { |
f0359dd0 AT |
1272 | set_nonblocking(STDIN_FILENO); |
1273 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1274 | if (am_daemon) |
1275 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1276 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1277 | } | |
c627d613 | 1278 | |
ff81e809 | 1279 | ret = start_client(argc, argv); |
d9c7edf6 | 1280 | if (ret == -1) |
9098bbf3 | 1281 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1282 | else |
9098bbf3 MP |
1283 | exit_cleanup(ret); |
1284 | ||
0f5a04e3 | 1285 | return ret; |
c627d613 | 1286 | } |