Commit | Line | Data |
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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 DD |
70 | |
71 | struct pid_status { | |
72 | pid_t pid; | |
84e6d6fd | 73 | int status; |
ee7118a8 DD |
74 | } pid_stat_table[MAXCHILDPROCS]; |
75 | ||
33c4b445 WD |
76 | static time_t starttime, endtime; |
77 | static int64 total_read, total_written; | |
78 | ||
e5a2b854 | 79 | static void show_malloc_stats(void); |
82980a23 | 80 | |
97d8e709 WD |
81 | /* Works like waitpid(), but if we already harvested the child pid in our |
82 | * sigchld_handler(), we succeed instead of returning an error. */ | |
83 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) | |
82980a23 | 84 | { |
97d8e709 | 85 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 86 | |
6fb812f7 | 87 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 WD |
88 | /* Status of requested child no longer available: check to |
89 | * see if it was processed by sigchld_handler(). */ | |
90 | int cnt; | |
84e6d6fd | 91 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 92 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 93 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 94 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 95 | return pid; |
ee7118a8 DD |
96 | } |
97 | } | |
98 | } | |
99 | ||
97d8e709 WD |
100 | return waited_pid; |
101 | } | |
102 | ||
103 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 104 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
105 | { |
106 | pid_t waited_pid; | |
107 | int status; | |
108 | ||
109 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
110 | msleep(20); | |
111 | io_flush(FULL_FLUSH); | |
112 | } | |
113 | ||
d9c7edf6 WD |
114 | /* TODO: If the child exited on a signal, then log an |
115 | * appropriate error message. Perhaps we should also accept a | |
116 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 117 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
118 | if (waited_pid < 0) { |
119 | rsyserr(FERROR, errno, "waitpid"); | |
120 | *exit_code_ptr = RERR_WAITCHILD; | |
121 | } else if (!WIFEXITED(status)) { | |
40e6752f | 122 | #ifdef WCOREDUMP |
dbefb6b4 | 123 | if (WCOREDUMP(status)) |
84e6d6fd | 124 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
125 | else |
126 | #endif | |
127 | if (WIFSIGNALED(status)) | |
84e6d6fd | 128 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 129 | else |
84e6d6fd | 130 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 131 | } else |
84e6d6fd | 132 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
133 | } |
134 | ||
b9f592fb WD |
135 | /* This function gets called from all 3 processes. We want the client side |
136 | * to actually output the text, but the sender is the only process that has | |
137 | * all the stats we need. So, if we're a client sender, we do the report. | |
138 | * If we're a server sender, we write the stats on the supplied fd. If | |
139 | * we're the client receiver we read the stats from the supplied fd and do | |
140 | * the report. All processes might also generate a set of debug stats, if | |
141 | * the verbose level is high enough (this is the only thing that the | |
142 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 143 | static void handle_stats(int f) |
c627d613 | 144 | { |
33c4b445 WD |
145 | endtime = time(NULL); |
146 | ||
b9f592fb | 147 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
148 | total_read = stats.total_read; |
149 | total_written = stats.total_written; | |
7a6421fa | 150 | |
7bb7058e | 151 | if (do_stats && verbose > 1) { |
5c15e29f | 152 | /* These come out from every process */ |
7bb7058e | 153 | show_malloc_stats(); |
86943126 | 154 | show_flist_stats(); |
5c15e29f MP |
155 | } |
156 | ||
e5fbaa71 S |
157 | if (am_generator) |
158 | return; | |
159 | ||
248fbb8c | 160 | if (am_daemon) { |
a9766ef1 | 161 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
162 | if (f == -1 || !am_sender) |
163 | return; | |
248fbb8c AT |
164 | } |
165 | ||
e19452a9 | 166 | if (am_server) { |
3e491682 | 167 | if (am_sender) { |
b9f592fb WD |
168 | write_longint(f, total_read); |
169 | write_longint(f, total_written); | |
170 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
171 | if (protocol_version >= 29) { |
172 | write_longint(f, stats.flist_buildtime); | |
173 | write_longint(f, stats.flist_xfertime); | |
174 | } | |
e19452a9 | 175 | } |
7a6421fa AT |
176 | return; |
177 | } | |
e19452a9 DD |
178 | |
179 | /* this is the client */ | |
d9c7edf6 | 180 | |
9d19f8a5 WD |
181 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
182 | ; | |
183 | else if (!am_sender) { | |
58c5c245 WD |
184 | /* Read the first two in opposite order because the meaning of |
185 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
186 | total_written = read_longint(f); |
187 | total_read = read_longint(f); | |
a800434a | 188 | stats.total_size = read_longint(f); |
f0f7e760 WD |
189 | if (protocol_version >= 29) { |
190 | stats.flist_buildtime = read_longint(f); | |
191 | stats.flist_xfertime = read_longint(f); | |
192 | } | |
e4676bb5 | 193 | } else if (write_batch) { |
b9f592fb WD |
194 | /* The --read-batch process is going to be a client |
195 | * receiver, so we need to give it the stats. */ | |
196 | write_longint(batch_fd, total_read); | |
197 | write_longint(batch_fd, total_written); | |
198 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
199 | if (protocol_version >= 29) { |
200 | write_longint(batch_fd, stats.flist_buildtime); | |
201 | write_longint(batch_fd, stats.flist_xfertime); | |
202 | } | |
a800434a | 203 | } |
e4676bb5 | 204 | } |
a800434a | 205 | |
e4676bb5 WD |
206 | static void output_summary(void) |
207 | { | |
a800434a | 208 | if (do_stats) { |
1f658d42 | 209 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
210 | rprintf(FINFO,"Number of files transferred: %d\n", |
211 | stats.num_transferred_files); | |
60613dc8 WD |
212 | rprintf(FINFO,"Total file size: %s bytes\n", |
213 | human_num(stats.total_size)); | |
214 | rprintf(FINFO,"Total transferred file size: %s bytes\n", | |
215 | human_num(stats.total_transferred_size)); | |
216 | rprintf(FINFO,"Literal data: %s bytes\n", | |
217 | human_num(stats.literal_data)); | |
218 | rprintf(FINFO,"Matched data: %s bytes\n", | |
219 | human_num(stats.matched_data)); | |
1f658d42 | 220 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
221 | if (stats.flist_buildtime) { |
222 | rprintf(FINFO, | |
223 | "File list generation time: %.3f seconds\n", | |
224 | (double)stats.flist_buildtime / 1000); | |
225 | rprintf(FINFO, | |
226 | "File list transfer time: %.3f seconds\n", | |
227 | (double)stats.flist_xfertime / 1000); | |
228 | } | |
60613dc8 WD |
229 | rprintf(FINFO,"Total bytes sent: %s\n", |
230 | human_num(total_written)); | |
231 | rprintf(FINFO,"Total bytes received: %s\n", | |
232 | human_num(total_read)); | |
7a6421fa | 233 | } |
d9c7edf6 | 234 | |
e19452a9 | 235 | if (verbose || do_stats) { |
b9f592fb | 236 | rprintf(FINFO, |
60613dc8 WD |
237 | "\nsent %s bytes received %s bytes %s bytes/sec\n", |
238 | human_num(total_written), human_num(total_read), | |
239 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
240 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
241 | human_num(stats.total_size), | |
b9f592fb | 242 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 243 | } |
fc8a6b97 AT |
244 | |
245 | fflush(stdout); | |
246 | fflush(stderr); | |
c627d613 AT |
247 | } |
248 | ||
249 | ||
e5a2b854 MP |
250 | /** |
251 | * If our C library can get malloc statistics, then show them to FINFO | |
252 | **/ | |
253 | static void show_malloc_stats(void) | |
254 | { | |
4f5b0756 | 255 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
256 | struct mallinfo mi; |
257 | ||
258 | mi = mallinfo(); | |
259 | ||
ce672562 | 260 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
261 | getpid(), am_server ? "server " : "", |
262 | am_daemon ? "daemon " : "", who_am_i()); | |
263 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
264 | (long)mi.arena); | |
265 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
266 | (long)mi.ordblks); | |
267 | rprintf(FINFO, " smblks: %10ld\n", | |
268 | (long)mi.smblks); | |
269 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
270 | (long)mi.hblks); | |
271 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
272 | (long)mi.hblkhd); | |
273 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
274 | (long)mi.arena + mi.hblkhd); | |
275 | rprintf(FINFO, " usmblks: %10ld\n", | |
276 | (long)mi.usmblks); | |
277 | rprintf(FINFO, " fsmblks: %10ld\n", | |
278 | (long)mi.fsmblks); | |
279 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
280 | (long)mi.uordblks); | |
281 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
282 | (long)mi.fordblks); | |
283 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
284 | (long)mi.keepcost); | |
e5a2b854 MP |
285 | #endif /* HAVE_MALLINFO */ |
286 | } | |
287 | ||
288 | ||
0882faa2 | 289 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
290 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
291 | int *f_in, int *f_out) | |
c627d613 | 292 | { |
6c2e5b56 | 293 | int i, argc = 0; |
887e553f | 294 | char *args[MAX_ARGS]; |
19b27a48 | 295 | pid_t ret; |
82f0c63e | 296 | char *dir = NULL; |
bb4aa89c | 297 | int dash_l_set = 0; |
366345fe | 298 | |
088aac85 | 299 | if (!read_batch && !local_server) { |
82f0c63e | 300 | char *t, *f, in_quote = '\0'; |
9af87151 | 301 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 302 | if (!cmd) |
9af87151 | 303 | cmd = rsh_env; |
366345fe AT |
304 | if (!cmd) |
305 | cmd = RSYNC_RSH; | |
306 | cmd = strdup(cmd); | |
d9c7edf6 | 307 | if (!cmd) |
366345fe AT |
308 | goto oom; |
309 | ||
82f0c63e WD |
310 | for (t = f = cmd; *f; f++) { |
311 | if (*f == ' ') | |
312 | continue; | |
e7a392c7 | 313 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 314 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 315 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
316 | exit_cleanup(RERR_SYNTAX); |
317 | } | |
82f0c63e WD |
318 | args[argc++] = t; |
319 | while (*f != ' ' || in_quote) { | |
320 | if (!*f) { | |
321 | if (in_quote) { | |
322 | rprintf(FERROR, | |
323 | "Missing trailing-%c in remote-shell command.\n", | |
324 | in_quote); | |
325 | exit_cleanup(RERR_SYNTAX); | |
326 | } | |
327 | f--; | |
328 | break; | |
329 | } | |
330 | if (*f == '\'' || *f == '"') { | |
331 | if (!in_quote) { | |
332 | in_quote = *f++; | |
333 | continue; | |
334 | } | |
335 | if (*f == in_quote && *++f != in_quote) { | |
336 | in_quote = '\0'; | |
337 | continue; | |
338 | } | |
339 | } | |
340 | *t++ = *f++; | |
341 | } | |
342 | *t++ = '\0'; | |
887e553f | 343 | } |
c627d613 | 344 | |
d9c7edf6 | 345 | /* check to see if we've already been given '-l user' in |
9af87151 | 346 | * the remote-shell command */ |
bb4aa89c WD |
347 | for (i = 0; i < argc-1; i++) { |
348 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
349 | dash_l_set = 1; | |
350 | } | |
351 | ||
4f5b0756 | 352 | #ifdef HAVE_REMSH |
366345fe AT |
353 | /* remsh (on HPUX) takes the arguments the other way around */ |
354 | args[argc++] = machine; | |
bb4aa89c | 355 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
356 | args[argc++] = "-l"; |
357 | args[argc++] = user; | |
358 | } | |
7b8356d0 | 359 | #else |
bb4aa89c | 360 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
361 | args[argc++] = "-l"; |
362 | args[argc++] = user; | |
363 | } | |
364 | args[argc++] = machine; | |
7b8356d0 | 365 | #endif |
c627d613 | 366 | |
366345fe | 367 | args[argc++] = rsync_path; |
c627d613 | 368 | |
9af87151 | 369 | if (blocking_io < 0) { |
90e22f4b WD |
370 | char *cp; |
371 | if ((cp = strrchr(cmd, '/')) != NULL) | |
372 | cp++; | |
373 | else | |
374 | cp = cmd; | |
375 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
376 | blocking_io = 1; | |
66b71163 | 377 | } |
e384bfbd | 378 | |
93689aa5 | 379 | server_options(args,&argc); |
e7a392c7 WD |
380 | |
381 | if (argc >= MAX_ARGS - 2) { | |
382 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
383 | exit_cleanup(RERR_SYNTAX); | |
384 | } | |
366345fe | 385 | } |
c627d613 | 386 | |
366345fe | 387 | args[argc++] = "."; |
76076c4b | 388 | |
d9c7edf6 | 389 | if (!daemon_over_rsh && path && *path) |
366345fe | 390 | args[argc++] = path; |
c627d613 | 391 | |
366345fe | 392 | args[argc] = NULL; |
c627d613 | 393 | |
366345fe | 394 | if (verbose > 3) { |
e7a392c7 | 395 | for (i = 0; i < argc; i++) |
82f0c63e WD |
396 | rprintf(FINFO, "cmd[%d]=%s ", i, safe_fname(args[i])); |
397 | rprintf(FINFO, "\n"); | |
366345fe AT |
398 | } |
399 | ||
c0d8e84c WD |
400 | if (read_batch) { |
401 | int from_gen_pipe[2]; | |
402 | if (fd_pair(from_gen_pipe) < 0) { | |
403 | rsyserr(FERROR, errno, "pipe"); | |
404 | exit_cleanup(RERR_IPC); | |
405 | } | |
406 | batch_gen_fd = from_gen_pipe[0]; | |
407 | *f_out = from_gen_pipe[1]; | |
408 | *f_in = batch_fd; | |
409 | ret = -1; /* no child pid */ | |
410 | } else if (local_server) { | |
b1df18d7 WD |
411 | /* If the user didn't request --[no-]whole-file, force |
412 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 413 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 414 | whole_file = 1; |
25d34a5c | 415 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 416 | } else |
366345fe | 417 | ret = piped_child(args,f_in,f_out); |
c627d613 | 418 | |
3a69fad0 WD |
419 | if (dir) |
420 | free(dir); | |
82306bf6 | 421 | |
366345fe | 422 | return ret; |
c627d613 | 423 | |
acee11fc | 424 | oom: |
366345fe AT |
425 | out_of_memory("do_cmd"); |
426 | return 0; /* not reached */ | |
c627d613 AT |
427 | } |
428 | ||
429 | ||
c627d613 AT |
430 | static char *get_local_name(struct file_list *flist,char *name) |
431 | { | |
7a6421fa | 432 | STRUCT_STAT st; |
87cc45e1 | 433 | int e; |
c627d613 | 434 | |
c95da96a | 435 | if (verbose > 2) |
d9c7edf6 | 436 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
437 | flist->count, NS(name)); |
438 | ||
d9c7edf6 | 439 | if (!name) |
1f0610ef | 440 | return NULL; |
c95da96a | 441 | |
1ff5450d AT |
442 | if (do_stat(name,&st) == 0) { |
443 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 444 | if (!push_dir(name)) { |
982e05bb WD |
445 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
446 | full_fname(name)); | |
65417579 | 447 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
448 | } |
449 | return NULL; | |
450 | } | |
451 | if (flist->count > 1) { | |
452 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 453 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
454 | } |
455 | return name; | |
456 | } | |
457 | ||
87cc45e1 | 458 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
459 | return name; |
460 | ||
1ff5450d | 461 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 462 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 463 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
464 | } |
465 | if (verbose > 0) | |
71903f60 | 466 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
467 | |
468 | if (dry_run) { | |
469 | dry_run++; | |
470 | return NULL; | |
1ff5450d AT |
471 | } |
472 | ||
59187666 | 473 | if (!push_dir(name)) { |
982e05bb WD |
474 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
475 | full_fname(name)); | |
65417579 | 476 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
477 | } |
478 | ||
479 | return NULL; | |
c627d613 AT |
480 | } |
481 | ||
482 | ||
1a8e5c97 | 483 | /* This is only called by the sender. */ |
3485ae83 | 484 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 485 | { |
1a8e5c97 WD |
486 | int i; |
487 | ||
488 | if (protocol_version < 29) | |
489 | i = read_int(f_in); | |
490 | else { | |
3485ae83 | 491 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
492 | && read_shortint(f_in) == ITEM_IS_NEW) { |
493 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 494 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
495 | write_shortint(f_out, ITEM_IS_NEW); |
496 | } | |
4e0fcd85 WD |
497 | } |
498 | ||
1a8e5c97 | 499 | if (i != -1) { |
c7791b8c WD |
500 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
501 | i, who_am_i()); | |
1a8e5c97 | 502 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
503 | } |
504 | } | |
505 | ||
506 | ||
9486289c | 507 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 508 | { |
7a6421fa AT |
509 | struct file_list *flist; |
510 | char *dir = argv[0]; | |
c627d613 | 511 | |
45e08edb WD |
512 | if (verbose > 2) { |
513 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
514 | (long)getpid()); | |
515 | } | |
d9c7edf6 | 516 | |
2adbcdc7 | 517 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
518 | rprintf(FERROR, "ERROR: module is write only\n"); |
519 | exit_cleanup(RERR_SYNTAX); | |
520 | return; | |
521 | } | |
bf26aa22 WD |
522 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
523 | rprintf(FERROR, | |
524 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
525 | exit_cleanup(RERR_SYNTAX); | |
526 | return; | |
527 | } | |
7a92ded3 | 528 | |
59187666 | 529 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
530 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
531 | full_fname(dir)); | |
65417579 | 532 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
533 | } |
534 | argc--; | |
535 | argv++; | |
d9c7edf6 | 536 | |
48a1ff0d | 537 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 538 | argc = 1; |
7a6421fa AT |
539 | argv--; |
540 | argv[0] = "."; | |
541 | } | |
d9c7edf6 | 542 | |
7a6421fa | 543 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
544 | if (!flist || flist->count == 0) { |
545 | exit_cleanup(0); | |
546 | } | |
a00628b3 | 547 | the_file_list = flist; |
8d9dc9f9 | 548 | |
da3478b2 WD |
549 | io_start_buffering_in(); |
550 | io_start_buffering_out(); | |
551 | ||
7a6421fa | 552 | send_files(flist,f_out,f_in); |
f1e3656e | 553 | io_flush(FULL_FLUSH); |
33c4b445 | 554 | handle_stats(f_out); |
4e0fcd85 | 555 | if (protocol_version >= 24) |
3485ae83 | 556 | read_final_goodbye(f_in, f_out); |
f1e3656e | 557 | io_flush(FULL_FLUSH); |
7a6421fa | 558 | exit_cleanup(0); |
c627d613 AT |
559 | } |
560 | ||
561 | ||
dc5ddbcc AT |
562 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
563 | { | |
d186eb1a | 564 | int pid; |
84e6d6fd | 565 | int exit_code = 0; |
c70e07d9 | 566 | int error_pipe[2]; |
dc5ddbcc | 567 | |
bb6721dc WD |
568 | /* The receiving side mustn't obey this, or an existing symlink that |
569 | * points to an identical file won't be replaced by the referent. */ | |
570 | copy_links = 0; | |
571 | ||
d186eb1a | 572 | if (preserve_hard_links) |
3485ae83 | 573 | init_hard_links(); |
dc5ddbcc | 574 | |
c70e07d9 | 575 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 576 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 577 | exit_cleanup(RERR_IPC); |
554e0a8d | 578 | } |
d9c7edf6 | 579 | |
f1e3656e | 580 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 581 | |
ba449e44 | 582 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 583 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
584 | exit_cleanup(RERR_IPC); |
585 | } | |
586 | ||
587 | if (pid == 0) { | |
554e0a8d | 588 | close(error_pipe[0]); |
3a69fad0 WD |
589 | if (f_in != f_out) |
590 | close(f_out); | |
e08c9610 | 591 | |
554e0a8d | 592 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 593 | close_multiplexing_out(); |
554e0a8d AT |
594 | |
595 | /* set place to send errors */ | |
f1e3656e | 596 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 597 | |
c70e07d9 | 598 | recv_files(f_in, flist, local_name); |
f1e3656e | 599 | io_flush(FULL_FLUSH); |
33c4b445 | 600 | handle_stats(f_in); |
e08c9610 | 601 | |
f1e3656e WD |
602 | send_msg(MSG_DONE, "", 0); |
603 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 604 | |
40df65fd WD |
605 | /* Handle any keep-alive packets from the post-processing work |
606 | * that the generator does. */ | |
4e0fcd85 | 607 | if (protocol_version >= 29) { |
051182cb | 608 | kluge_around_eof = -1; |
1a8e5c97 WD |
609 | |
610 | /* This should only get stopped via a USR2 signal. */ | |
611 | while (read_int(f_in) == flist->count | |
612 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
613 | ||
3485ae83 WD |
614 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
615 | who_am_i()); | |
1a8e5c97 | 616 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
617 | } |
618 | ||
9e0582f9 WD |
619 | /* Finally, we go to sleep until our parent kills us with a |
620 | * USR2 signal. We sleep for a short time, as on some OSes | |
621 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
622 | while (1) |
623 | msleep(20); | |
d186eb1a | 624 | } |
dc5ddbcc | 625 | |
b695f242 | 626 | am_generator = 1; |
9eeb3b9c | 627 | close_multiplexing_in(); |
e8a96e27 | 628 | if (write_batch && !am_server) |
b9f592fb | 629 | stop_write_batch(); |
b695f242 | 630 | |
554e0a8d | 631 | close(error_pipe[1]); |
3a69fad0 WD |
632 | if (f_in != f_out) |
633 | close(f_in); | |
e1b3d5c4 | 634 | |
da3478b2 | 635 | io_start_buffering_out(); |
b3e10ed7 | 636 | |
f1e3656e | 637 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 638 | |
c70e07d9 | 639 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 640 | |
33c4b445 | 641 | handle_stats(-1); |
f1e3656e | 642 | io_flush(FULL_FLUSH); |
d04e9c51 | 643 | if (protocol_version >= 24) { |
8ada7518 AT |
644 | /* send a final goodbye message */ |
645 | write_int(f_out, -1); | |
646 | } | |
f1e3656e | 647 | io_flush(FULL_FLUSH); |
8ada7518 | 648 | |
f1e3656e | 649 | set_msg_fd_in(-1); |
089a2435 | 650 | kill(pid, SIGUSR2); |
84e6d6fd WD |
651 | wait_process_with_flush(pid, &exit_code); |
652 | return exit_code; | |
dc5ddbcc AT |
653 | } |
654 | ||
c627d613 | 655 | |
9486289c | 656 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 657 | { |
84e6d6fd | 658 | int exit_code; |
7a6421fa | 659 | struct file_list *flist; |
6c2e5b56 | 660 | char *local_name = NULL; |
7a6421fa | 661 | char *dir = NULL; |
07bff66f WD |
662 | int save_verbose = verbose; |
663 | ||
664 | if (filesfrom_fd >= 0) { | |
665 | /* We can't mix messages with files-from data on the socket, | |
666 | * so temporarily turn off verbose messages. */ | |
667 | verbose = 0; | |
668 | } | |
f0fca04e | 669 | |
45e08edb WD |
670 | if (verbose > 2) { |
671 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
672 | argc, (long)getpid()); | |
673 | } | |
09b7f5db | 674 | |
2adbcdc7 | 675 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
676 | rprintf(FERROR,"ERROR: module is read only\n"); |
677 | exit_cleanup(RERR_SYNTAX); | |
678 | return; | |
679 | } | |
680 | ||
7a6421fa AT |
681 | if (argc > 0) { |
682 | dir = argv[0]; | |
683 | argc--; | |
684 | argv++; | |
59187666 | 685 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
686 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
687 | full_fname(dir)); | |
65417579 | 688 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 689 | } |
7a6421fa | 690 | } |
c627d613 | 691 | |
da3478b2 | 692 | io_start_buffering_in(); |
57dee64e | 693 | recv_filter_list(f_in); |
c627d613 | 694 | |
7c2a9e76 | 695 | if (filesfrom_fd >= 0) { |
07bff66f WD |
696 | /* We need to send the files-from names to the sender at the |
697 | * same time that we receive the file-list from them, so we | |
698 | * need the IO routines to automatically write out the names | |
699 | * onto our f_out socket as we read the file-list. This | |
700 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
701 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
702 | filesfrom_fd = -1; | |
703 | } | |
704 | ||
b9f592fb | 705 | flist = recv_file_list(f_in); |
07bff66f | 706 | verbose = save_verbose; |
4c36a13e AT |
707 | if (!flist) { |
708 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 709 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 710 | } |
a00628b3 | 711 | the_file_list = flist; |
d9c7edf6 | 712 | |
29fad7a3 | 713 | if (argc > 0) |
7a6421fa | 714 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 715 | |
84e6d6fd WD |
716 | exit_code = do_recv(f_in,f_out,flist,local_name); |
717 | exit_cleanup(exit_code); | |
c627d613 AT |
718 | } |
719 | ||
720 | ||
734a94a2 | 721 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
722 | { |
723 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 724 | return 0; |
25d34a5c MP |
725 | } |
726 | ||
727 | ||
9486289c | 728 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 729 | { |
f0359dd0 AT |
730 | set_nonblocking(f_in); |
731 | set_nonblocking(f_out); | |
732 | ||
da3478b2 WD |
733 | io_set_sock_fds(f_in, f_out); |
734 | setup_protocol(f_out, f_in); | |
735 | ||
d04e9c51 | 736 | if (protocol_version >= 23) |
da3478b2 | 737 | io_start_multiplex_out(); |
7a6421fa | 738 | |
7a6421fa | 739 | if (am_sender) { |
83926d3c | 740 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
741 | if (need_messages_from_generator) |
742 | io_start_multiplex_in(); | |
9b3318b0 | 743 | |
7842418b | 744 | recv_filter_list(f_in); |
7a6421fa AT |
745 | do_server_sender(f_in, f_out, argc, argv); |
746 | } else { | |
747 | do_server_recv(f_in, f_out, argc, argv); | |
748 | } | |
749 | exit_cleanup(0); | |
366345fe AT |
750 | } |
751 | ||
0ba48136 MP |
752 | |
753 | /* | |
754 | * This is called once the connection has been negotiated. It is used | |
755 | * for rsyncd, remote-shell, and local connections. | |
756 | */ | |
19b27a48 | 757 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 758 | { |
088aac85 | 759 | struct file_list *flist = NULL; |
84e6d6fd | 760 | int exit_code = 0, exit_code2 = 0; |
9486289c | 761 | char *local_name = NULL; |
19b27a48 AT |
762 | |
763 | cleanup_child_pid = pid; | |
67a28eb2 | 764 | if (!read_batch) { |
b9f592fb WD |
765 | set_nonblocking(f_in); |
766 | set_nonblocking(f_out); | |
767 | } | |
f0359dd0 | 768 | |
da3478b2 | 769 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
770 | setup_protocol(f_out,f_in); |
771 | ||
b9f592fb | 772 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 773 | io_start_multiplex_in(); |
d9c7edf6 | 774 | |
18882701 WD |
775 | /* We set our stderr file handle to blocking because ssh might have |
776 | * set it to non-blocking. This can be particularly troublesome if | |
777 | * stderr is a clone of stdout, because ssh would have set our stdout | |
778 | * to non-blocking at the same time (which can easily cause us to lose | |
779 | * output from our print statements). This kluge shouldn't cause ssh | |
780 | * any problems for how we use it. Note also that we delayed setting | |
781 | * this until after the above protocol setup so that we know for sure | |
782 | * that ssh is done twiddling its file descriptors. */ | |
783 | set_blocking(STDERR_FILENO); | |
784 | ||
9486289c | 785 | if (am_sender) { |
83926d3c | 786 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 787 | io_start_buffering_out(); |
860236bf | 788 | if (!filesfrom_host) |
a0a33ee5 | 789 | set_msg_fd_in(f_in); |
57dee64e | 790 | send_filter_list(f_out); |
860236bf | 791 | if (filesfrom_host) |
7c2a9e76 | 792 | filesfrom_fd = f_in; |
b9f592fb | 793 | |
e8a96e27 | 794 | if (write_batch && !am_server) |
b9f592fb | 795 | start_write_batch(f_out); |
a00628b3 | 796 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 797 | set_msg_fd_in(-1); |
d9c7edf6 | 798 | if (verbose > 3) |
9486289c | 799 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 800 | the_file_list = flist; |
e1b3d5c4 | 801 | |
f1e3656e | 802 | io_flush(NORMAL_FLUSH); |
9486289c | 803 | send_files(flist,f_out,f_in); |
f1e3656e | 804 | io_flush(FULL_FLUSH); |
33c4b445 | 805 | handle_stats(-1); |
4e0fcd85 | 806 | if (protocol_version >= 24) |
3485ae83 | 807 | read_final_goodbye(f_in, f_out); |
9486289c AT |
808 | if (pid != -1) { |
809 | if (verbose > 3) | |
08a740ff | 810 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 811 | io_flush(FULL_FLUSH); |
84e6d6fd | 812 | wait_process_with_flush(pid, &exit_code); |
9486289c | 813 | } |
33c4b445 | 814 | output_summary(); |
c87ae64a | 815 | io_flush(FULL_FLUSH); |
84e6d6fd | 816 | exit_cleanup(exit_code); |
9486289c | 817 | } |
f7632fc6 | 818 | |
bf26aa22 WD |
819 | if (need_messages_from_generator && !read_batch) |
820 | io_start_multiplex_out(); | |
821 | ||
48a1ff0d WD |
822 | if (argc == 0) |
823 | list_only |= 1; | |
d9c7edf6 | 824 | |
57dee64e | 825 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 826 | |
7c2a9e76 WD |
827 | if (filesfrom_fd >= 0) { |
828 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
829 | filesfrom_fd = -1; | |
830 | } | |
831 | ||
e8a96e27 | 832 | if (write_batch && !am_server) |
b9f592fb | 833 | start_write_batch(f_in); |
9486289c | 834 | flist = recv_file_list(f_in); |
a00628b3 | 835 | the_file_list = flist; |
d9c7edf6 | 836 | |
9d19f8a5 WD |
837 | if (flist && flist->count > 0) { |
838 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 839 | |
84e6d6fd | 840 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
841 | } else { |
842 | handle_stats(-1); | |
843 | output_summary(); | |
844 | } | |
d9c7edf6 | 845 | |
9486289c | 846 | if (pid != -1) { |
8d9dc9f9 | 847 | if (verbose > 3) |
08a740ff | 848 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 849 | io_flush(FULL_FLUSH); |
84e6d6fd | 850 | wait_process_with_flush(pid, &exit_code); |
9486289c | 851 | } |
d9c7edf6 | 852 | |
84e6d6fd | 853 | return MAX(exit_code, exit_code2); |
9486289c AT |
854 | } |
855 | ||
7169bb4a MP |
856 | static int copy_argv (char *argv[]) |
857 | { | |
858 | int i; | |
859 | ||
860 | for (i = 0; argv[i]; i++) { | |
861 | if (!(argv[i] = strdup(argv[i]))) { | |
862 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
863 | __FILE__, __LINE__); | |
864 | return RERR_MALLOC; | |
865 | } | |
866 | } | |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
871 | ||
c1a04ecb | 872 | /** |
0ba48136 MP |
873 | * Start a client for either type of remote connection. Work out |
874 | * whether the arguments request a remote shell or rsyncd connection, | |
875 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
876 | * |
877 | * Calls either start_socket_client (for sockets) or do_cmd and | |
878 | * client_run (for ssh). | |
c1a04ecb | 879 | **/ |
fc8a6b97 | 880 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
881 | { |
882 | char *p; | |
883 | char *shell_machine = NULL; | |
884 | char *shell_path = NULL; | |
885 | char *shell_user = NULL; | |
19b27a48 AT |
886 | int ret; |
887 | pid_t pid; | |
5d6bcd44 | 888 | int f_in,f_out; |
7169bb4a MP |
889 | int rc; |
890 | ||
891 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 892 | * command line. */ |
75aeac44 | 893 | if ((rc = copy_argv(argv))) |
7169bb4a | 894 | return rc; |
5d6bcd44 | 895 | |
d16c245f | 896 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 897 | argc--; |
860236bf WD |
898 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
899 | if (shell_path) { /* source is remote */ | |
9425918d WD |
900 | char *dummy1; |
901 | int dummy2; | |
3f7bfac2 | 902 | if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { |
9425918d WD |
903 | rprintf(FERROR, |
904 | "The source and destination cannot both be remote.\n"); | |
905 | exit_cleanup(RERR_SYNTAX); | |
906 | } | |
42ccb4c0 | 907 | argv++; |
860236bf WD |
908 | if (filesfrom_host && *filesfrom_host |
909 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 910 | rprintf(FERROR, |
50b31539 | 911 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
912 | exit_cleanup(RERR_SYNTAX); |
913 | } | |
860236bf | 914 | if (rsync_port) { |
d9c7edf6 | 915 | if (!shell_cmd) { |
860236bf WD |
916 | return start_socket_client(shell_machine, |
917 | shell_path, | |
42ccb4c0 | 918 | argc, argv); |
d9c7edf6 | 919 | } |
d9c7edf6 | 920 | daemon_over_rsh = 1; |
75aeac44 | 921 | } |
3591c066 | 922 | |
42ccb4c0 WD |
923 | am_sender = 0; |
924 | } else { /* source is local, check dest arg */ | |
925 | am_sender = 1; | |
926 | ||
d16c245f | 927 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
928 | usage(FERROR); |
929 | exit_cleanup(RERR_SYNTAX); | |
930 | } | |
a125c82a | 931 | |
42ccb4c0 | 932 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
933 | if (shell_path && filesfrom_host && *filesfrom_host |
934 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 935 | rprintf(FERROR, |
50b31539 | 936 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
937 | exit_cleanup(RERR_SYNTAX); |
938 | } | |
860236bf | 939 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 940 | local_server = 1; |
860236bf | 941 | if (filesfrom_host) { |
7c2a9e76 | 942 | rprintf(FERROR, |
50b31539 | 943 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
944 | exit_cleanup(RERR_SYNTAX); |
945 | } | |
860236bf | 946 | shell_machine = NULL; |
42ccb4c0 | 947 | shell_path = argv[argc]; |
860236bf | 948 | } else if (rsync_port) { |
d9c7edf6 | 949 | if (!shell_cmd) { |
860236bf WD |
950 | return start_socket_client(shell_machine, |
951 | shell_path, | |
42ccb4c0 | 952 | argc, argv); |
d9c7edf6 | 953 | } |
d9c7edf6 | 954 | daemon_over_rsh = 1; |
a125c82a | 955 | } |
5d6bcd44 | 956 | } |
d16c245f | 957 | } else { /* read_batch */ |
d9c7edf6 WD |
958 | local_server = 1; |
959 | shell_path = argv[argc-1]; | |
860236bf | 960 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
961 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
962 | exit_cleanup(RERR_SYNTAX); | |
963 | } | |
6902ed17 MP |
964 | } |
965 | ||
5d6bcd44 | 966 | if (shell_machine) { |
6fc048f4 | 967 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
968 | if (p) { |
969 | *p = 0; | |
970 | shell_user = shell_machine; | |
971 | shell_machine = p+1; | |
972 | } | |
973 | } | |
974 | ||
975 | if (verbose > 3) { | |
9486289c | 976 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
977 | shell_cmd ? safe_fname(shell_cmd) : "", |
978 | shell_machine ? safe_fname(shell_machine) : "", | |
979 | shell_user ? safe_fname(shell_user) : "", | |
980 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 981 | } |
d9c7edf6 | 982 | |
d16c245f | 983 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 984 | if (!am_sender && argc > 1) { |
5d6bcd44 | 985 | usage(FERROR); |
65417579 | 986 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 987 | } |
27e3e9c9 | 988 | |
d16c245f | 989 | /* ... or no dest at all */ |
48a1ff0d WD |
990 | if (!am_sender && argc == 0) |
991 | list_only |= 1; | |
d9c7edf6 | 992 | |
75aeac44 WD |
993 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
994 | &f_in,&f_out); | |
995 | ||
996 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 997 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
998 | if (daemon_over_rsh) { |
999 | int tmpret; | |
1000 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1001 | f_in, f_out, argc); | |
1002 | if (tmpret < 0) | |
1003 | return tmpret; | |
1004 | } | |
1005 | ||
fc8a6b97 AT |
1006 | ret = client_run(f_in, f_out, pid, argc, argv); |
1007 | ||
1008 | fflush(stdout); | |
1009 | fflush(stderr); | |
1010 | ||
1011 | return ret; | |
5d6bcd44 AT |
1012 | } |
1013 | ||
366345fe | 1014 | |
067669da WD |
1015 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1016 | { | |
65417579 | 1017 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
1018 | } |
1019 | ||
067669da WD |
1020 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1021 | { | |
33c4b445 WD |
1022 | if (!am_server) |
1023 | output_summary(); | |
40df65fd | 1024 | close_all(); |
33c4b445 WD |
1025 | if (log_got_error) |
1026 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1027 | _exit(0); |
1028 | } | |
1029 | ||
067669da WD |
1030 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1031 | { | |
029c1713 | 1032 | #ifdef WNOHANG |
ee7118a8 DD |
1033 | int cnt, status; |
1034 | pid_t pid; | |
1035 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1036 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1037 | * out we're instead saving the child exit statuses for later use. |
1038 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1039 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1040 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1041 | /* save the child's exit status */ |
1042 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1043 | if (pid_stat_table[cnt].pid == 0) { | |
1044 | pid_stat_table[cnt].pid = pid; | |
1045 | pid_stat_table[cnt].status = status; | |
1046 | break; | |
1047 | } | |
1048 | } | |
ee7118a8 | 1049 | } |
029c1713 | 1050 | #endif |
97d8e709 | 1051 | signal(SIGCHLD, sigchld_handler); |
19b27a48 AT |
1052 | } |
1053 | ||
c0531332 MP |
1054 | |
1055 | /** | |
1056 | * This routine catches signals and tries to send them to gdb. | |
1057 | * | |
1058 | * Because it's called from inside a signal handler it ought not to | |
1059 | * use too many library routines. | |
1060 | * | |
1061 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1062 | * debugging without easy access to X. Perhaps use an environment | |
1063 | * variable, or just call a script? | |
1064 | * | |
1065 | * @todo The /proc/ magic probably only works on Linux (and | |
1066 | * Solaris?) Can we be more portable? | |
1067 | **/ | |
1068 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1069 | const char *get_panic_action(void) |
1070 | { | |
1071 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1072 | ||
1073 | if (cmd_fmt) | |
1074 | return cmd_fmt; | |
1075 | else | |
1076 | return "xterm -display :0 -T Panic -n Panic " | |
1077 | "-e gdb /proc/%d/exe %d"; | |
1078 | } | |
1079 | ||
1080 | ||
9fb3f7a9 MP |
1081 | /** |
1082 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1083 | * | |
1084 | * This signal handler is only installed if we were configured with | |
1085 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1086 | * should just look at the environment variable, but I'm a bit leery | |
1087 | * of a signal sending us into a busy loop. | |
1088 | **/ | |
067669da | 1089 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1090 | { |
1091 | char cmd_buf[300]; | |
1092 | int ret; | |
4fdc39dd MP |
1093 | |
1094 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1095 | getpid(), getpid()); |
1096 | ||
1097 | /* Unless we failed to execute gdb, we allow the process to | |
1098 | * continue. I'm not sure if that's right. */ | |
1099 | ret = system(cmd_buf); | |
1100 | if (ret) | |
1101 | _exit(ret); | |
1102 | } | |
1103 | #endif | |
1104 | ||
1105 | ||
5d6bcd44 | 1106 | int main(int argc,char *argv[]) |
d9c7edf6 | 1107 | { |
ff81e809 | 1108 | int ret; |
66a9dc96 WD |
1109 | int orig_argc = argc; |
1110 | char **orig_argv = argv; | |
5d6bcd44 | 1111 | |
7a6421fa | 1112 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1113 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1114 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1115 | #ifdef MAINTAINER_MODE |
1116 | signal(SIGSEGV, rsync_panic_handler); | |
1117 | signal(SIGFPE, rsync_panic_handler); | |
1118 | signal(SIGABRT, rsync_panic_handler); | |
1119 | signal(SIGBUS, rsync_panic_handler); | |
1120 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1121 | |
7a6421fa | 1122 | starttime = time(NULL); |
6fe05820 | 1123 | am_root = (MY_UID() == 0); |
c627d613 | 1124 | |
a800434a AT |
1125 | memset(&stats, 0, sizeof(stats)); |
1126 | ||
df5e03da AT |
1127 | if (argc < 2) { |
1128 | usage(FERROR); | |
65417579 | 1129 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1130 | } |
1131 | ||
7a6421fa | 1132 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1133 | * carried across */ |
7a6421fa | 1134 | orig_umask = (int)umask(0); |
5d6bcd44 | 1135 | |
50135767 | 1136 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1137 | /* FIXME: We ought to call the same error-handling |
1138 | * code here, rather than relying on getopt. */ | |
50135767 | 1139 | option_error(); |
65417579 | 1140 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1141 | } |
5d6bcd44 | 1142 | |
7a6421fa | 1143 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1144 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1145 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1146 | |
34758d5c MP |
1147 | /* Ignore SIGPIPE; we consistently check error codes and will |
1148 | * see the EPIPE. */ | |
1149 | signal(SIGPIPE, SIG_IGN); | |
1150 | ||
d9401514 WD |
1151 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1152 | setlocale(LC_CTYPE, ""); | |
1153 | #endif | |
1154 | ||
c226b7c2 | 1155 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1156 | * (implemented by forking "pwd" and reading its output) doesn't |
1157 | * work when there are other child processes. Also, on all systems | |
1158 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1159 | push_dir(NULL); |
c226b7c2 | 1160 | |
44e9e221 WD |
1161 | init_flist(); |
1162 | ||
e8a96e27 | 1163 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1164 | if (write_batch) |
66a9dc96 | 1165 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1166 | |
dbbab0c4 WD |
1167 | if (read_batch && strcmp(batch_name, "-") == 0) |
1168 | batch_fd = STDIN_FILENO; | |
1169 | else { | |
1170 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1171 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1172 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1173 | } |
b9f592fb WD |
1174 | if (batch_fd < 0) { |
1175 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1176 | full_fname(batch_name)); |
b9f592fb WD |
1177 | exit_cleanup(RERR_FILEIO); |
1178 | } | |
9459290a WD |
1179 | if (read_batch) |
1180 | read_stream_flags(batch_fd); | |
6902ed17 | 1181 | } |
e8a96e27 WD |
1182 | if (write_batch < 0) |
1183 | dry_run = 1; | |
6902ed17 | 1184 | |
75aeac44 | 1185 | if (am_daemon && !am_server) |
7a6421fa | 1186 | return daemon_main(); |
f0fca04e | 1187 | |
08ac228f AT |
1188 | if (argc < 1) { |
1189 | usage(FERROR); | |
65417579 | 1190 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1191 | } |
1192 | ||
7a6421fa | 1193 | if (am_server) { |
f0359dd0 AT |
1194 | set_nonblocking(STDIN_FILENO); |
1195 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1196 | if (am_daemon) |
1197 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1198 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1199 | } | |
c627d613 | 1200 | |
ff81e809 | 1201 | ret = start_client(argc, argv); |
d9c7edf6 | 1202 | if (ret == -1) |
9098bbf3 | 1203 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1204 | else |
9098bbf3 MP |
1205 | exit_cleanup(ret); |
1206 | ||
0f5a04e3 | 1207 | return ret; |
c627d613 | 1208 | } |