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++) |
45c49b52 | 396 | rprintf(FINFO, "cmd[%d]=%s ", i, args[i]); |
82f0c63e | 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 | ||
eb598fac WD |
429 | /* The receiving side operates in one of two modes: |
430 | * | |
431 | * 1. it enters a directory and receives one or more files, placing them | |
432 | * according to their names in the file-list. | |
433 | * | |
434 | * 2. it receives a single file and saves it using the name in the | |
435 | * destination path instead of its file-list name. This requires a | |
436 | * "local name" for writing out the destination file. | |
437 | * | |
438 | * So, our task is to figure out what mode/local-name we need and return | |
439 | * either a NULL for mode 1, or the local-name for mode 2. We also | |
440 | * change directory if there are any path components in dest_path. */ | |
441 | static char *get_local_name(struct file_list *flist, char *dest_path) | |
c627d613 | 442 | { |
7a6421fa | 443 | STRUCT_STAT st; |
eb598fac | 444 | char *cp; |
c627d613 | 445 | |
eb598fac WD |
446 | if (verbose > 2) { |
447 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
448 | flist->count, NS(dest_path)); | |
449 | } | |
1f0610ef | 450 | |
eb598fac | 451 | if (!dest_path) |
1f0610ef | 452 | return NULL; |
c95da96a | 453 | |
eb598fac WD |
454 | /* If the destination path refers to an existing directory, enter |
455 | * it and use mode 1. If there is something other than a directory | |
456 | * at the destination path, we must be transferring one file | |
457 | * (anything at the destination will be overwritten). */ | |
458 | if (do_stat(dest_path, &st) == 0) { | |
1ff5450d | 459 | if (S_ISDIR(st.st_mode)) { |
eb598fac | 460 | if (!push_dir(dest_path)) { |
982e05bb | 461 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 462 | full_fname(dest_path)); |
65417579 | 463 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
464 | } |
465 | return NULL; | |
466 | } | |
467 | if (flist->count > 1) { | |
eb598fac WD |
468 | rprintf(FERROR, |
469 | "ERROR: destination must be a directory when" | |
470 | " copying more than 1 file\n"); | |
65417579 | 471 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 472 | } |
1ff5450d AT |
473 | } |
474 | ||
eb598fac WD |
475 | cp = strrchr(dest_path, '/'); |
476 | ||
477 | /* If the destination path ends in a slash or we are transferring | |
478 | * multiple files, create a directory at the destination path, | |
479 | * enter the new directory, and use mode 1. */ | |
480 | if (flist->count > 1 || (cp && !cp[1])) { | |
481 | /* Lop off the final slash (if any). */ | |
482 | if (cp && !cp[1]) | |
483 | *cp = '\0'; | |
484 | ||
485 | umask(orig_umask); | |
486 | if (do_mkdir(dest_path, 0777) != 0) { | |
487 | rsyserr(FERROR, errno, "mkdir %s failed", | |
488 | full_fname(dest_path)); | |
489 | exit_cleanup(RERR_FILEIO); | |
490 | } | |
491 | umask(0); | |
1ff5450d | 492 | |
eb598fac WD |
493 | if (verbose) |
494 | rprintf(FINFO, "created directory %s\n", dest_path); | |
495 | ||
496 | if (dry_run) { | |
497 | /* Indicate that the destination directory doesn't | |
498 | * really exist and return mode 1. */ | |
499 | dry_run++; | |
500 | return NULL; | |
501 | } | |
502 | ||
503 | if (!push_dir(dest_path)) { | |
504 | rsyserr(FERROR, errno, "push_dir#2 %s failed", | |
505 | full_fname(dest_path)); | |
506 | exit_cleanup(RERR_FILESELECT); | |
507 | } | |
e5a96f0f | 508 | |
e5a96f0f | 509 | return NULL; |
1ff5450d AT |
510 | } |
511 | ||
eb598fac WD |
512 | /* Otherwise, we are writing a single file, possibly on top of an |
513 | * existing non-directory. Change to the item's parent directory | |
514 | * (if it has a path component), return the basename of the | |
515 | * destination file as the local name, and use mode 2. */ | |
516 | if (!cp) | |
517 | return dest_path; | |
518 | ||
519 | if (cp == dest_path) | |
520 | dest_path = "/"; | |
521 | ||
522 | *cp = '\0'; | |
523 | if (!push_dir(dest_path)) { | |
524 | rsyserr(FERROR, errno, "push_dir#3 %s failed", | |
525 | full_fname(dest_path)); | |
65417579 | 526 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 527 | } |
eb598fac | 528 | *cp = '/'; |
1ff5450d | 529 | |
eb598fac | 530 | return cp + 1; |
c627d613 AT |
531 | } |
532 | ||
533 | ||
1a8e5c97 | 534 | /* This is only called by the sender. */ |
3485ae83 | 535 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 536 | { |
1a8e5c97 WD |
537 | int i; |
538 | ||
539 | if (protocol_version < 29) | |
540 | i = read_int(f_in); | |
541 | else { | |
3485ae83 | 542 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
543 | && read_shortint(f_in) == ITEM_IS_NEW) { |
544 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 545 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
546 | write_shortint(f_out, ITEM_IS_NEW); |
547 | } | |
4e0fcd85 WD |
548 | } |
549 | ||
1a8e5c97 | 550 | if (i != -1) { |
c7791b8c WD |
551 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
552 | i, who_am_i()); | |
1a8e5c97 | 553 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
554 | } |
555 | } | |
556 | ||
557 | ||
eb598fac | 558 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 559 | { |
7a6421fa AT |
560 | struct file_list *flist; |
561 | char *dir = argv[0]; | |
c627d613 | 562 | |
45e08edb WD |
563 | if (verbose > 2) { |
564 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
565 | (long)getpid()); | |
566 | } | |
d9c7edf6 | 567 | |
2adbcdc7 | 568 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
569 | rprintf(FERROR, "ERROR: module is write only\n"); |
570 | exit_cleanup(RERR_SYNTAX); | |
571 | return; | |
572 | } | |
bf26aa22 WD |
573 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
574 | rprintf(FERROR, | |
575 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
576 | exit_cleanup(RERR_SYNTAX); | |
577 | return; | |
578 | } | |
7a92ded3 | 579 | |
59187666 | 580 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
581 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
582 | full_fname(dir)); | |
65417579 | 583 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
584 | } |
585 | argc--; | |
586 | argv++; | |
d9c7edf6 | 587 | |
48a1ff0d | 588 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 589 | argc = 1; |
7a6421fa AT |
590 | argv--; |
591 | argv[0] = "."; | |
592 | } | |
d9c7edf6 | 593 | |
7a6421fa | 594 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
595 | if (!flist || flist->count == 0) { |
596 | exit_cleanup(0); | |
597 | } | |
a00628b3 | 598 | the_file_list = flist; |
8d9dc9f9 | 599 | |
da3478b2 WD |
600 | io_start_buffering_in(); |
601 | io_start_buffering_out(); | |
602 | ||
7a6421fa | 603 | send_files(flist,f_out,f_in); |
f1e3656e | 604 | io_flush(FULL_FLUSH); |
33c4b445 | 605 | handle_stats(f_out); |
4e0fcd85 | 606 | if (protocol_version >= 24) |
3485ae83 | 607 | read_final_goodbye(f_in, f_out); |
f1e3656e | 608 | io_flush(FULL_FLUSH); |
7a6421fa | 609 | exit_cleanup(0); |
c627d613 AT |
610 | } |
611 | ||
612 | ||
dc5ddbcc AT |
613 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
614 | { | |
d186eb1a | 615 | int pid; |
84e6d6fd | 616 | int exit_code = 0; |
c70e07d9 | 617 | int error_pipe[2]; |
dc5ddbcc | 618 | |
bb6721dc WD |
619 | /* The receiving side mustn't obey this, or an existing symlink that |
620 | * points to an identical file won't be replaced by the referent. */ | |
621 | copy_links = 0; | |
622 | ||
d186eb1a | 623 | if (preserve_hard_links) |
3485ae83 | 624 | init_hard_links(); |
dc5ddbcc | 625 | |
c70e07d9 | 626 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 627 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 628 | exit_cleanup(RERR_IPC); |
554e0a8d | 629 | } |
d9c7edf6 | 630 | |
f1e3656e | 631 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 632 | |
ba449e44 | 633 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 634 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
635 | exit_cleanup(RERR_IPC); |
636 | } | |
637 | ||
638 | if (pid == 0) { | |
554e0a8d | 639 | close(error_pipe[0]); |
3a69fad0 WD |
640 | if (f_in != f_out) |
641 | close(f_out); | |
e08c9610 | 642 | |
554e0a8d | 643 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 644 | close_multiplexing_out(); |
554e0a8d AT |
645 | |
646 | /* set place to send errors */ | |
f1e3656e | 647 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 648 | |
c70e07d9 | 649 | recv_files(f_in, flist, local_name); |
f1e3656e | 650 | io_flush(FULL_FLUSH); |
33c4b445 | 651 | handle_stats(f_in); |
e08c9610 | 652 | |
f1e3656e WD |
653 | send_msg(MSG_DONE, "", 0); |
654 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 655 | |
40df65fd WD |
656 | /* Handle any keep-alive packets from the post-processing work |
657 | * that the generator does. */ | |
4e0fcd85 | 658 | if (protocol_version >= 29) { |
051182cb | 659 | kluge_around_eof = -1; |
1a8e5c97 WD |
660 | |
661 | /* This should only get stopped via a USR2 signal. */ | |
662 | while (read_int(f_in) == flist->count | |
663 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
664 | ||
3485ae83 WD |
665 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
666 | who_am_i()); | |
1a8e5c97 | 667 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
668 | } |
669 | ||
9e0582f9 WD |
670 | /* Finally, we go to sleep until our parent kills us with a |
671 | * USR2 signal. We sleep for a short time, as on some OSes | |
672 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
673 | while (1) |
674 | msleep(20); | |
d186eb1a | 675 | } |
dc5ddbcc | 676 | |
b695f242 | 677 | am_generator = 1; |
9eeb3b9c | 678 | close_multiplexing_in(); |
e8a96e27 | 679 | if (write_batch && !am_server) |
b9f592fb | 680 | stop_write_batch(); |
b695f242 | 681 | |
554e0a8d | 682 | close(error_pipe[1]); |
3a69fad0 WD |
683 | if (f_in != f_out) |
684 | close(f_in); | |
e1b3d5c4 | 685 | |
da3478b2 | 686 | io_start_buffering_out(); |
b3e10ed7 | 687 | |
f1e3656e | 688 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 689 | |
c70e07d9 | 690 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 691 | |
33c4b445 | 692 | handle_stats(-1); |
f1e3656e | 693 | io_flush(FULL_FLUSH); |
d04e9c51 | 694 | if (protocol_version >= 24) { |
8ada7518 AT |
695 | /* send a final goodbye message */ |
696 | write_int(f_out, -1); | |
697 | } | |
f1e3656e | 698 | io_flush(FULL_FLUSH); |
8ada7518 | 699 | |
f1e3656e | 700 | set_msg_fd_in(-1); |
089a2435 | 701 | kill(pid, SIGUSR2); |
84e6d6fd WD |
702 | wait_process_with_flush(pid, &exit_code); |
703 | return exit_code; | |
dc5ddbcc AT |
704 | } |
705 | ||
c627d613 | 706 | |
9486289c | 707 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 708 | { |
84e6d6fd | 709 | int exit_code; |
7a6421fa | 710 | struct file_list *flist; |
6c2e5b56 | 711 | char *local_name = NULL; |
7a6421fa | 712 | char *dir = NULL; |
07bff66f WD |
713 | int save_verbose = verbose; |
714 | ||
715 | if (filesfrom_fd >= 0) { | |
716 | /* We can't mix messages with files-from data on the socket, | |
717 | * so temporarily turn off verbose messages. */ | |
718 | verbose = 0; | |
719 | } | |
f0fca04e | 720 | |
45e08edb WD |
721 | if (verbose > 2) { |
722 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
723 | argc, (long)getpid()); | |
724 | } | |
09b7f5db | 725 | |
2adbcdc7 | 726 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
727 | rprintf(FERROR,"ERROR: module is read only\n"); |
728 | exit_cleanup(RERR_SYNTAX); | |
729 | return; | |
730 | } | |
731 | ||
7a6421fa AT |
732 | if (argc > 0) { |
733 | dir = argv[0]; | |
734 | argc--; | |
735 | argv++; | |
59187666 | 736 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
737 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
738 | full_fname(dir)); | |
65417579 | 739 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 740 | } |
7a6421fa | 741 | } |
c627d613 | 742 | |
da3478b2 | 743 | io_start_buffering_in(); |
57dee64e | 744 | recv_filter_list(f_in); |
c627d613 | 745 | |
7c2a9e76 | 746 | if (filesfrom_fd >= 0) { |
07bff66f WD |
747 | /* We need to send the files-from names to the sender at the |
748 | * same time that we receive the file-list from them, so we | |
749 | * need the IO routines to automatically write out the names | |
750 | * onto our f_out socket as we read the file-list. This | |
751 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
752 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
753 | filesfrom_fd = -1; | |
754 | } | |
755 | ||
b9f592fb | 756 | flist = recv_file_list(f_in); |
07bff66f | 757 | verbose = save_verbose; |
4c36a13e AT |
758 | if (!flist) { |
759 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 760 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 761 | } |
a00628b3 | 762 | the_file_list = flist; |
d9c7edf6 | 763 | |
29fad7a3 | 764 | if (argc > 0) |
7a6421fa | 765 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 766 | |
84e6d6fd WD |
767 | exit_code = do_recv(f_in,f_out,flist,local_name); |
768 | exit_cleanup(exit_code); | |
c627d613 AT |
769 | } |
770 | ||
771 | ||
734a94a2 | 772 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
773 | { |
774 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 775 | return 0; |
25d34a5c MP |
776 | } |
777 | ||
778 | ||
9486289c | 779 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 780 | { |
f0359dd0 AT |
781 | set_nonblocking(f_in); |
782 | set_nonblocking(f_out); | |
783 | ||
da3478b2 WD |
784 | io_set_sock_fds(f_in, f_out); |
785 | setup_protocol(f_out, f_in); | |
786 | ||
d04e9c51 | 787 | if (protocol_version >= 23) |
da3478b2 | 788 | io_start_multiplex_out(); |
7a6421fa | 789 | |
7a6421fa | 790 | if (am_sender) { |
83926d3c | 791 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
792 | if (need_messages_from_generator) |
793 | io_start_multiplex_in(); | |
9b3318b0 | 794 | |
7842418b | 795 | recv_filter_list(f_in); |
7a6421fa AT |
796 | do_server_sender(f_in, f_out, argc, argv); |
797 | } else { | |
798 | do_server_recv(f_in, f_out, argc, argv); | |
799 | } | |
800 | exit_cleanup(0); | |
366345fe AT |
801 | } |
802 | ||
0ba48136 MP |
803 | |
804 | /* | |
805 | * This is called once the connection has been negotiated. It is used | |
806 | * for rsyncd, remote-shell, and local connections. | |
807 | */ | |
19b27a48 | 808 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 809 | { |
088aac85 | 810 | struct file_list *flist = NULL; |
84e6d6fd | 811 | int exit_code = 0, exit_code2 = 0; |
9486289c | 812 | char *local_name = NULL; |
19b27a48 AT |
813 | |
814 | cleanup_child_pid = pid; | |
67a28eb2 | 815 | if (!read_batch) { |
b9f592fb WD |
816 | set_nonblocking(f_in); |
817 | set_nonblocking(f_out); | |
818 | } | |
f0359dd0 | 819 | |
da3478b2 | 820 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
821 | setup_protocol(f_out,f_in); |
822 | ||
b9f592fb | 823 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 824 | io_start_multiplex_in(); |
d9c7edf6 | 825 | |
18882701 WD |
826 | /* We set our stderr file handle to blocking because ssh might have |
827 | * set it to non-blocking. This can be particularly troublesome if | |
828 | * stderr is a clone of stdout, because ssh would have set our stdout | |
829 | * to non-blocking at the same time (which can easily cause us to lose | |
830 | * output from our print statements). This kluge shouldn't cause ssh | |
831 | * any problems for how we use it. Note also that we delayed setting | |
832 | * this until after the above protocol setup so that we know for sure | |
833 | * that ssh is done twiddling its file descriptors. */ | |
834 | set_blocking(STDERR_FILENO); | |
835 | ||
9486289c | 836 | if (am_sender) { |
83926d3c | 837 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 838 | io_start_buffering_out(); |
860236bf | 839 | if (!filesfrom_host) |
a0a33ee5 | 840 | set_msg_fd_in(f_in); |
57dee64e | 841 | send_filter_list(f_out); |
860236bf | 842 | if (filesfrom_host) |
7c2a9e76 | 843 | filesfrom_fd = f_in; |
b9f592fb | 844 | |
e8a96e27 | 845 | if (write_batch && !am_server) |
b9f592fb | 846 | start_write_batch(f_out); |
a00628b3 | 847 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 848 | set_msg_fd_in(-1); |
d9c7edf6 | 849 | if (verbose > 3) |
9486289c | 850 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 851 | the_file_list = flist; |
e1b3d5c4 | 852 | |
f1e3656e | 853 | io_flush(NORMAL_FLUSH); |
9486289c | 854 | send_files(flist,f_out,f_in); |
f1e3656e | 855 | io_flush(FULL_FLUSH); |
33c4b445 | 856 | handle_stats(-1); |
4e0fcd85 | 857 | if (protocol_version >= 24) |
3485ae83 | 858 | read_final_goodbye(f_in, f_out); |
9486289c AT |
859 | if (pid != -1) { |
860 | if (verbose > 3) | |
08a740ff | 861 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 862 | io_flush(FULL_FLUSH); |
84e6d6fd | 863 | wait_process_with_flush(pid, &exit_code); |
9486289c | 864 | } |
33c4b445 | 865 | output_summary(); |
c87ae64a | 866 | io_flush(FULL_FLUSH); |
84e6d6fd | 867 | exit_cleanup(exit_code); |
9486289c | 868 | } |
f7632fc6 | 869 | |
bf26aa22 WD |
870 | if (need_messages_from_generator && !read_batch) |
871 | io_start_multiplex_out(); | |
872 | ||
48a1ff0d WD |
873 | if (argc == 0) |
874 | list_only |= 1; | |
d9c7edf6 | 875 | |
57dee64e | 876 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 877 | |
7c2a9e76 WD |
878 | if (filesfrom_fd >= 0) { |
879 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
880 | filesfrom_fd = -1; | |
881 | } | |
882 | ||
e8a96e27 | 883 | if (write_batch && !am_server) |
b9f592fb | 884 | start_write_batch(f_in); |
9486289c | 885 | flist = recv_file_list(f_in); |
a00628b3 | 886 | the_file_list = flist; |
d9c7edf6 | 887 | |
9d19f8a5 WD |
888 | if (flist && flist->count > 0) { |
889 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 890 | |
84e6d6fd | 891 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
892 | } else { |
893 | handle_stats(-1); | |
894 | output_summary(); | |
895 | } | |
d9c7edf6 | 896 | |
9486289c | 897 | if (pid != -1) { |
8d9dc9f9 | 898 | if (verbose > 3) |
08a740ff | 899 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 900 | io_flush(FULL_FLUSH); |
84e6d6fd | 901 | wait_process_with_flush(pid, &exit_code); |
9486289c | 902 | } |
d9c7edf6 | 903 | |
84e6d6fd | 904 | return MAX(exit_code, exit_code2); |
9486289c AT |
905 | } |
906 | ||
7169bb4a MP |
907 | static int copy_argv (char *argv[]) |
908 | { | |
909 | int i; | |
910 | ||
911 | for (i = 0; argv[i]; i++) { | |
912 | if (!(argv[i] = strdup(argv[i]))) { | |
913 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
914 | __FILE__, __LINE__); | |
915 | return RERR_MALLOC; | |
916 | } | |
917 | } | |
918 | ||
919 | return 0; | |
920 | } | |
921 | ||
922 | ||
c1a04ecb | 923 | /** |
0ba48136 MP |
924 | * Start a client for either type of remote connection. Work out |
925 | * whether the arguments request a remote shell or rsyncd connection, | |
926 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
927 | * |
928 | * Calls either start_socket_client (for sockets) or do_cmd and | |
929 | * client_run (for ssh). | |
c1a04ecb | 930 | **/ |
fc8a6b97 | 931 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
932 | { |
933 | char *p; | |
934 | char *shell_machine = NULL; | |
935 | char *shell_path = NULL; | |
936 | char *shell_user = NULL; | |
19b27a48 AT |
937 | int ret; |
938 | pid_t pid; | |
5d6bcd44 | 939 | int f_in,f_out; |
7169bb4a MP |
940 | int rc; |
941 | ||
942 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 943 | * command line. */ |
75aeac44 | 944 | if ((rc = copy_argv(argv))) |
7169bb4a | 945 | return rc; |
5d6bcd44 | 946 | |
d16c245f | 947 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 948 | argc--; |
860236bf WD |
949 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
950 | if (shell_path) { /* source is remote */ | |
9425918d WD |
951 | char *dummy1; |
952 | int dummy2; | |
3f7bfac2 | 953 | if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { |
9425918d WD |
954 | rprintf(FERROR, |
955 | "The source and destination cannot both be remote.\n"); | |
956 | exit_cleanup(RERR_SYNTAX); | |
957 | } | |
42ccb4c0 | 958 | argv++; |
860236bf WD |
959 | if (filesfrom_host && *filesfrom_host |
960 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 961 | rprintf(FERROR, |
50b31539 | 962 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
963 | exit_cleanup(RERR_SYNTAX); |
964 | } | |
860236bf | 965 | if (rsync_port) { |
d9c7edf6 | 966 | if (!shell_cmd) { |
860236bf WD |
967 | return start_socket_client(shell_machine, |
968 | shell_path, | |
42ccb4c0 | 969 | argc, argv); |
d9c7edf6 | 970 | } |
d9c7edf6 | 971 | daemon_over_rsh = 1; |
75aeac44 | 972 | } |
3591c066 | 973 | |
42ccb4c0 WD |
974 | am_sender = 0; |
975 | } else { /* source is local, check dest arg */ | |
976 | am_sender = 1; | |
977 | ||
d16c245f | 978 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
979 | usage(FERROR); |
980 | exit_cleanup(RERR_SYNTAX); | |
981 | } | |
a125c82a | 982 | |
42ccb4c0 | 983 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
984 | if (shell_path && filesfrom_host && *filesfrom_host |
985 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 986 | rprintf(FERROR, |
50b31539 | 987 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
988 | exit_cleanup(RERR_SYNTAX); |
989 | } | |
860236bf | 990 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 991 | local_server = 1; |
860236bf | 992 | if (filesfrom_host) { |
7c2a9e76 | 993 | rprintf(FERROR, |
50b31539 | 994 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
995 | exit_cleanup(RERR_SYNTAX); |
996 | } | |
860236bf | 997 | shell_machine = NULL; |
42ccb4c0 | 998 | shell_path = argv[argc]; |
860236bf | 999 | } else if (rsync_port) { |
d9c7edf6 | 1000 | if (!shell_cmd) { |
860236bf WD |
1001 | return start_socket_client(shell_machine, |
1002 | shell_path, | |
42ccb4c0 | 1003 | argc, argv); |
d9c7edf6 | 1004 | } |
d9c7edf6 | 1005 | daemon_over_rsh = 1; |
a125c82a | 1006 | } |
5d6bcd44 | 1007 | } |
d16c245f | 1008 | } else { /* read_batch */ |
d9c7edf6 WD |
1009 | local_server = 1; |
1010 | shell_path = argv[argc-1]; | |
860236bf | 1011 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1012 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1013 | exit_cleanup(RERR_SYNTAX); | |
1014 | } | |
6902ed17 MP |
1015 | } |
1016 | ||
5d6bcd44 | 1017 | if (shell_machine) { |
6fc048f4 | 1018 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1019 | if (p) { |
1020 | *p = 0; | |
1021 | shell_user = shell_machine; | |
1022 | shell_machine = p+1; | |
1023 | } | |
1024 | } | |
1025 | ||
1026 | if (verbose > 3) { | |
9486289c | 1027 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1028 | shell_cmd ? shell_cmd : "", |
1029 | shell_machine ? shell_machine : "", | |
1030 | shell_user ? shell_user : "", | |
1031 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1032 | } |
d9c7edf6 | 1033 | |
d16c245f | 1034 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1035 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1036 | usage(FERROR); |
65417579 | 1037 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1038 | } |
27e3e9c9 | 1039 | |
d16c245f | 1040 | /* ... or no dest at all */ |
48a1ff0d WD |
1041 | if (!am_sender && argc == 0) |
1042 | list_only |= 1; | |
d9c7edf6 | 1043 | |
75aeac44 WD |
1044 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1045 | &f_in,&f_out); | |
1046 | ||
1047 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1048 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1049 | if (daemon_over_rsh) { |
1050 | int tmpret; | |
1051 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1052 | f_in, f_out, argc); | |
1053 | if (tmpret < 0) | |
1054 | return tmpret; | |
1055 | } | |
1056 | ||
fc8a6b97 AT |
1057 | ret = client_run(f_in, f_out, pid, argc, argv); |
1058 | ||
1059 | fflush(stdout); | |
1060 | fflush(stderr); | |
1061 | ||
1062 | return ret; | |
5d6bcd44 AT |
1063 | } |
1064 | ||
366345fe | 1065 | |
067669da WD |
1066 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1067 | { | |
6bf32edb | 1068 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1069 | } |
1070 | ||
067669da WD |
1071 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1072 | { | |
33c4b445 WD |
1073 | if (!am_server) |
1074 | output_summary(); | |
40df65fd | 1075 | close_all(); |
33c4b445 WD |
1076 | if (log_got_error) |
1077 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1078 | _exit(0); |
1079 | } | |
1080 | ||
067669da WD |
1081 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1082 | { | |
029c1713 | 1083 | #ifdef WNOHANG |
ee7118a8 DD |
1084 | int cnt, status; |
1085 | pid_t pid; | |
1086 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1087 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1088 | * out we're instead saving the child exit statuses for later use. |
1089 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1090 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1091 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1092 | /* save the child's exit status */ |
1093 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1094 | if (pid_stat_table[cnt].pid == 0) { | |
1095 | pid_stat_table[cnt].pid = pid; | |
1096 | pid_stat_table[cnt].status = status; | |
1097 | break; | |
1098 | } | |
1099 | } | |
ee7118a8 | 1100 | } |
029c1713 | 1101 | #endif |
97d8e709 | 1102 | signal(SIGCHLD, sigchld_handler); |
19b27a48 AT |
1103 | } |
1104 | ||
c0531332 MP |
1105 | |
1106 | /** | |
1107 | * This routine catches signals and tries to send them to gdb. | |
1108 | * | |
1109 | * Because it's called from inside a signal handler it ought not to | |
1110 | * use too many library routines. | |
1111 | * | |
1112 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1113 | * debugging without easy access to X. Perhaps use an environment | |
1114 | * variable, or just call a script? | |
1115 | * | |
1116 | * @todo The /proc/ magic probably only works on Linux (and | |
1117 | * Solaris?) Can we be more portable? | |
1118 | **/ | |
1119 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1120 | const char *get_panic_action(void) |
1121 | { | |
1122 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1123 | ||
1124 | if (cmd_fmt) | |
1125 | return cmd_fmt; | |
1126 | else | |
1127 | return "xterm -display :0 -T Panic -n Panic " | |
1128 | "-e gdb /proc/%d/exe %d"; | |
1129 | } | |
1130 | ||
1131 | ||
9fb3f7a9 MP |
1132 | /** |
1133 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1134 | * | |
1135 | * This signal handler is only installed if we were configured with | |
1136 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1137 | * should just look at the environment variable, but I'm a bit leery | |
1138 | * of a signal sending us into a busy loop. | |
1139 | **/ | |
067669da | 1140 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1141 | { |
1142 | char cmd_buf[300]; | |
1143 | int ret; | |
4fdc39dd MP |
1144 | |
1145 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1146 | getpid(), getpid()); |
1147 | ||
1148 | /* Unless we failed to execute gdb, we allow the process to | |
1149 | * continue. I'm not sure if that's right. */ | |
1150 | ret = system(cmd_buf); | |
1151 | if (ret) | |
1152 | _exit(ret); | |
1153 | } | |
1154 | #endif | |
1155 | ||
1156 | ||
5d6bcd44 | 1157 | int main(int argc,char *argv[]) |
d9c7edf6 | 1158 | { |
ff81e809 | 1159 | int ret; |
66a9dc96 WD |
1160 | int orig_argc = argc; |
1161 | char **orig_argv = argv; | |
5d6bcd44 | 1162 | |
7a6421fa | 1163 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1164 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1165 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1166 | #ifdef MAINTAINER_MODE |
1167 | signal(SIGSEGV, rsync_panic_handler); | |
1168 | signal(SIGFPE, rsync_panic_handler); | |
1169 | signal(SIGABRT, rsync_panic_handler); | |
1170 | signal(SIGBUS, rsync_panic_handler); | |
1171 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1172 | |
7a6421fa | 1173 | starttime = time(NULL); |
6fe05820 | 1174 | am_root = (MY_UID() == 0); |
c627d613 | 1175 | |
a800434a AT |
1176 | memset(&stats, 0, sizeof(stats)); |
1177 | ||
df5e03da AT |
1178 | if (argc < 2) { |
1179 | usage(FERROR); | |
65417579 | 1180 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1181 | } |
1182 | ||
7a6421fa | 1183 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1184 | * carried across */ |
7a6421fa | 1185 | orig_umask = (int)umask(0); |
5d6bcd44 | 1186 | |
eb598fac WD |
1187 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1188 | setlocale(LC_CTYPE, ""); | |
1189 | #endif | |
1190 | ||
50135767 | 1191 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1192 | /* FIXME: We ought to call the same error-handling |
1193 | * code here, rather than relying on getopt. */ | |
50135767 | 1194 | option_error(); |
65417579 | 1195 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1196 | } |
5d6bcd44 | 1197 | |
7a6421fa | 1198 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1199 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1200 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1201 | |
34758d5c MP |
1202 | /* Ignore SIGPIPE; we consistently check error codes and will |
1203 | * see the EPIPE. */ | |
1204 | signal(SIGPIPE, SIG_IGN); | |
1205 | ||
c226b7c2 | 1206 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1207 | * (implemented by forking "pwd" and reading its output) doesn't |
1208 | * work when there are other child processes. Also, on all systems | |
1209 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1210 | push_dir(NULL); |
c226b7c2 | 1211 | |
44e9e221 WD |
1212 | init_flist(); |
1213 | ||
e8a96e27 | 1214 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1215 | if (write_batch) |
66a9dc96 | 1216 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1217 | |
dbbab0c4 WD |
1218 | if (read_batch && strcmp(batch_name, "-") == 0) |
1219 | batch_fd = STDIN_FILENO; | |
1220 | else { | |
1221 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1222 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1223 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1224 | } |
b9f592fb WD |
1225 | if (batch_fd < 0) { |
1226 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1227 | full_fname(batch_name)); |
b9f592fb WD |
1228 | exit_cleanup(RERR_FILEIO); |
1229 | } | |
9459290a WD |
1230 | if (read_batch) |
1231 | read_stream_flags(batch_fd); | |
6902ed17 | 1232 | } |
e8a96e27 WD |
1233 | if (write_batch < 0) |
1234 | dry_run = 1; | |
6902ed17 | 1235 | |
75aeac44 | 1236 | if (am_daemon && !am_server) |
7a6421fa | 1237 | return daemon_main(); |
f0fca04e | 1238 | |
08ac228f AT |
1239 | if (argc < 1) { |
1240 | usage(FERROR); | |
65417579 | 1241 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1242 | } |
1243 | ||
7a6421fa | 1244 | if (am_server) { |
f0359dd0 AT |
1245 | set_nonblocking(STDIN_FILENO); |
1246 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1247 | if (am_daemon) |
1248 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1249 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1250 | } | |
c627d613 | 1251 | |
ff81e809 | 1252 | ret = start_client(argc, argv); |
d9c7edf6 | 1253 | if (ret == -1) |
9098bbf3 | 1254 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1255 | else |
9098bbf3 MP |
1256 | exit_cleanup(ret); |
1257 | ||
0f5a04e3 | 1258 | return ret; |
c627d613 | 1259 | } |