Commit | Line | Data |
---|---|---|
0f78b815 WD |
1 | /* |
2 | * The startup routines, including main(), for rsync. | |
3 | * | |
4 | * Copyright (C) 1996-2001 Andrew Tridgell <tridge@samba.org> | |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org> | |
7 | * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
c627d613 AT |
23 | |
24 | #include "rsync.h" | |
d9401514 WD |
25 | #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H |
26 | #include <locale.h> | |
27 | #endif | |
c627d613 | 28 | |
50839b4b WD |
29 | extern int verbose; |
30 | extern int dry_run; | |
31 | extern int list_only; | |
32eda096 | 32 | extern int am_root; |
d9c7edf6 WD |
33 | extern int am_server; |
34 | extern int am_sender; | |
b695f242 | 35 | extern int am_generator; |
d9c7edf6 | 36 | extern int am_daemon; |
32eda096 | 37 | extern int blocking_io; |
bf26aa22 | 38 | extern int remove_sent_files; |
32eda096 | 39 | extern int daemon_over_rsh; |
bf26aa22 | 40 | extern int need_messages_from_generator; |
051182cb | 41 | extern int kluge_around_eof; |
32eda096 | 42 | extern int do_stats; |
32eda096 WD |
43 | extern int log_got_error; |
44 | extern int module_id; | |
bb6721dc | 45 | extern int copy_links; |
a695b379 | 46 | extern int copy_dirlinks; |
83926d3c | 47 | extern int keep_dirlinks; |
32eda096 | 48 | extern int preserve_hard_links; |
d04e9c51 | 49 | extern int protocol_version; |
32eda096 WD |
50 | extern int recurse; |
51 | extern int relative_paths; | |
52 | extern int rsync_port; | |
b1df18d7 | 53 | extern int whole_file; |
32eda096 WD |
54 | extern int read_batch; |
55 | extern int write_batch; | |
b9f592fb | 56 | extern int batch_fd; |
c0d8e84c | 57 | extern int batch_gen_fd; |
32eda096 WD |
58 | extern int filesfrom_fd; |
59 | extern pid_t cleanup_child_pid; | |
50839b4b | 60 | extern struct stats stats; |
860236bf | 61 | extern char *filesfrom_host; |
32eda096 WD |
62 | extern char *rsync_path; |
63 | extern char *shell_cmd; | |
9b3318b0 | 64 | extern char *batch_name; |
57dee64e WD |
65 | |
66 | int local_server = 0; | |
05278935 | 67 | mode_t orig_umask = 0; |
a00628b3 | 68 | struct file_list *the_file_list; |
c627d613 | 69 | |
91c5833b WD |
70 | /* There's probably never more than at most 2 outstanding child processes, |
71 | * but set it higher, just in case. */ | |
84e6d6fd | 72 | #define MAXCHILDPROCS 7 |
ee7118a8 | 73 | |
8261af74 WD |
74 | #ifdef HAVE_SIGACTION |
75 | # ifdef HAVE_SIGPROCMASK | |
76 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
77 | # else | |
78 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
79 | # endif | |
60ee01f5 WD |
80 | static struct sigaction sigact; |
81 | #endif | |
82 | ||
ee7118a8 DD |
83 | struct pid_status { |
84 | pid_t pid; | |
84e6d6fd | 85 | int status; |
ee7118a8 DD |
86 | } pid_stat_table[MAXCHILDPROCS]; |
87 | ||
33c4b445 WD |
88 | static time_t starttime, endtime; |
89 | static int64 total_read, total_written; | |
90 | ||
e5a2b854 | 91 | static void show_malloc_stats(void); |
82980a23 | 92 | |
97d8e709 | 93 | /* Works like waitpid(), but if we already harvested the child pid in our |
6d59ac19 | 94 | * remember_children(), we succeed instead of returning an error. */ |
97d8e709 | 95 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) |
82980a23 | 96 | { |
97d8e709 | 97 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 98 | |
6fb812f7 | 99 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 | 100 | /* Status of requested child no longer available: check to |
6d59ac19 | 101 | * see if it was processed by remember_children(). */ |
97d8e709 | 102 | int cnt; |
84e6d6fd | 103 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 104 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 105 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 106 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 107 | return pid; |
ee7118a8 DD |
108 | } |
109 | } | |
110 | } | |
111 | ||
97d8e709 WD |
112 | return waited_pid; |
113 | } | |
114 | ||
115 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 116 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
117 | { |
118 | pid_t waited_pid; | |
119 | int status; | |
120 | ||
121 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
122 | msleep(20); | |
123 | io_flush(FULL_FLUSH); | |
124 | } | |
125 | ||
d9c7edf6 WD |
126 | /* TODO: If the child exited on a signal, then log an |
127 | * appropriate error message. Perhaps we should also accept a | |
128 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 129 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
130 | if (waited_pid < 0) { |
131 | rsyserr(FERROR, errno, "waitpid"); | |
132 | *exit_code_ptr = RERR_WAITCHILD; | |
133 | } else if (!WIFEXITED(status)) { | |
40e6752f | 134 | #ifdef WCOREDUMP |
dbefb6b4 | 135 | if (WCOREDUMP(status)) |
84e6d6fd | 136 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
137 | else |
138 | #endif | |
139 | if (WIFSIGNALED(status)) | |
84e6d6fd | 140 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 141 | else |
84e6d6fd | 142 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 143 | } else |
84e6d6fd | 144 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
145 | } |
146 | ||
b9f592fb WD |
147 | /* This function gets called from all 3 processes. We want the client side |
148 | * to actually output the text, but the sender is the only process that has | |
149 | * all the stats we need. So, if we're a client sender, we do the report. | |
150 | * If we're a server sender, we write the stats on the supplied fd. If | |
151 | * we're the client receiver we read the stats from the supplied fd and do | |
152 | * the report. All processes might also generate a set of debug stats, if | |
153 | * the verbose level is high enough (this is the only thing that the | |
154 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 155 | static void handle_stats(int f) |
c627d613 | 156 | { |
33c4b445 WD |
157 | endtime = time(NULL); |
158 | ||
b9f592fb | 159 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
160 | total_read = stats.total_read; |
161 | total_written = stats.total_written; | |
7a6421fa | 162 | |
7bb7058e | 163 | if (do_stats && verbose > 1) { |
5c15e29f | 164 | /* These come out from every process */ |
7bb7058e | 165 | show_malloc_stats(); |
86943126 | 166 | show_flist_stats(); |
5c15e29f MP |
167 | } |
168 | ||
e5fbaa71 S |
169 | if (am_generator) |
170 | return; | |
171 | ||
248fbb8c | 172 | if (am_daemon) { |
a9766ef1 | 173 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
174 | if (f == -1 || !am_sender) |
175 | return; | |
248fbb8c AT |
176 | } |
177 | ||
e19452a9 | 178 | if (am_server) { |
3e491682 | 179 | if (am_sender) { |
b9f592fb WD |
180 | write_longint(f, total_read); |
181 | write_longint(f, total_written); | |
182 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
183 | if (protocol_version >= 29) { |
184 | write_longint(f, stats.flist_buildtime); | |
185 | write_longint(f, stats.flist_xfertime); | |
186 | } | |
e19452a9 | 187 | } |
7a6421fa AT |
188 | return; |
189 | } | |
e19452a9 DD |
190 | |
191 | /* this is the client */ | |
d9c7edf6 | 192 | |
9d19f8a5 | 193 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
0f78b815 | 194 | ; |
9d19f8a5 | 195 | else if (!am_sender) { |
58c5c245 WD |
196 | /* Read the first two in opposite order because the meaning of |
197 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
198 | total_written = read_longint(f); |
199 | total_read = read_longint(f); | |
a800434a | 200 | stats.total_size = read_longint(f); |
f0f7e760 WD |
201 | if (protocol_version >= 29) { |
202 | stats.flist_buildtime = read_longint(f); | |
203 | stats.flist_xfertime = read_longint(f); | |
204 | } | |
e4676bb5 | 205 | } else if (write_batch) { |
b9f592fb WD |
206 | /* The --read-batch process is going to be a client |
207 | * receiver, so we need to give it the stats. */ | |
208 | write_longint(batch_fd, total_read); | |
209 | write_longint(batch_fd, total_written); | |
210 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
211 | if (protocol_version >= 29) { |
212 | write_longint(batch_fd, stats.flist_buildtime); | |
213 | write_longint(batch_fd, stats.flist_xfertime); | |
214 | } | |
a800434a | 215 | } |
e4676bb5 | 216 | } |
a800434a | 217 | |
e4676bb5 WD |
218 | static void output_summary(void) |
219 | { | |
a800434a | 220 | if (do_stats) { |
1f658d42 | 221 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
222 | rprintf(FINFO,"Number of files transferred: %d\n", |
223 | stats.num_transferred_files); | |
60613dc8 WD |
224 | rprintf(FINFO,"Total file size: %s bytes\n", |
225 | human_num(stats.total_size)); | |
226 | rprintf(FINFO,"Total transferred file size: %s bytes\n", | |
227 | human_num(stats.total_transferred_size)); | |
228 | rprintf(FINFO,"Literal data: %s bytes\n", | |
229 | human_num(stats.literal_data)); | |
230 | rprintf(FINFO,"Matched data: %s bytes\n", | |
231 | human_num(stats.matched_data)); | |
1f658d42 | 232 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
233 | if (stats.flist_buildtime) { |
234 | rprintf(FINFO, | |
235 | "File list generation time: %.3f seconds\n", | |
236 | (double)stats.flist_buildtime / 1000); | |
237 | rprintf(FINFO, | |
238 | "File list transfer time: %.3f seconds\n", | |
239 | (double)stats.flist_xfertime / 1000); | |
240 | } | |
60613dc8 WD |
241 | rprintf(FINFO,"Total bytes sent: %s\n", |
242 | human_num(total_written)); | |
243 | rprintf(FINFO,"Total bytes received: %s\n", | |
244 | human_num(total_read)); | |
7a6421fa | 245 | } |
d9c7edf6 | 246 | |
e19452a9 | 247 | if (verbose || do_stats) { |
b9f592fb | 248 | rprintf(FINFO, |
60613dc8 WD |
249 | "\nsent %s bytes received %s bytes %s bytes/sec\n", |
250 | human_num(total_written), human_num(total_read), | |
251 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
252 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
253 | human_num(stats.total_size), | |
b9f592fb | 254 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 255 | } |
fc8a6b97 AT |
256 | |
257 | fflush(stdout); | |
258 | fflush(stderr); | |
c627d613 AT |
259 | } |
260 | ||
261 | ||
e5a2b854 MP |
262 | /** |
263 | * If our C library can get malloc statistics, then show them to FINFO | |
264 | **/ | |
265 | static void show_malloc_stats(void) | |
266 | { | |
4f5b0756 | 267 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
268 | struct mallinfo mi; |
269 | ||
270 | mi = mallinfo(); | |
271 | ||
ce672562 | 272 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
273 | getpid(), am_server ? "server " : "", |
274 | am_daemon ? "daemon " : "", who_am_i()); | |
275 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
276 | (long)mi.arena); | |
277 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
278 | (long)mi.ordblks); | |
279 | rprintf(FINFO, " smblks: %10ld\n", | |
280 | (long)mi.smblks); | |
281 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
282 | (long)mi.hblks); | |
283 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
284 | (long)mi.hblkhd); | |
285 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
286 | (long)mi.arena + mi.hblkhd); | |
287 | rprintf(FINFO, " usmblks: %10ld\n", | |
288 | (long)mi.usmblks); | |
289 | rprintf(FINFO, " fsmblks: %10ld\n", | |
290 | (long)mi.fsmblks); | |
291 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
292 | (long)mi.uordblks); | |
293 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
294 | (long)mi.fordblks); | |
295 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
296 | (long)mi.keepcost); | |
e5a2b854 MP |
297 | #endif /* HAVE_MALLINFO */ |
298 | } | |
299 | ||
300 | ||
0882faa2 | 301 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
302 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
303 | int *f_in, int *f_out) | |
c627d613 | 304 | { |
6c2e5b56 | 305 | int i, argc = 0; |
887e553f | 306 | char *args[MAX_ARGS]; |
19b27a48 | 307 | pid_t ret; |
82f0c63e | 308 | char *dir = NULL; |
bb4aa89c | 309 | int dash_l_set = 0; |
366345fe | 310 | |
088aac85 | 311 | if (!read_batch && !local_server) { |
82f0c63e | 312 | char *t, *f, in_quote = '\0'; |
9af87151 | 313 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 314 | if (!cmd) |
9af87151 | 315 | cmd = rsh_env; |
366345fe AT |
316 | if (!cmd) |
317 | cmd = RSYNC_RSH; | |
318 | cmd = strdup(cmd); | |
d9c7edf6 | 319 | if (!cmd) |
366345fe AT |
320 | goto oom; |
321 | ||
82f0c63e WD |
322 | for (t = f = cmd; *f; f++) { |
323 | if (*f == ' ') | |
324 | continue; | |
e7a392c7 | 325 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 326 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 327 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
328 | exit_cleanup(RERR_SYNTAX); |
329 | } | |
82f0c63e WD |
330 | args[argc++] = t; |
331 | while (*f != ' ' || in_quote) { | |
332 | if (!*f) { | |
333 | if (in_quote) { | |
334 | rprintf(FERROR, | |
335 | "Missing trailing-%c in remote-shell command.\n", | |
336 | in_quote); | |
337 | exit_cleanup(RERR_SYNTAX); | |
338 | } | |
339 | f--; | |
340 | break; | |
341 | } | |
342 | if (*f == '\'' || *f == '"') { | |
343 | if (!in_quote) { | |
344 | in_quote = *f++; | |
345 | continue; | |
346 | } | |
347 | if (*f == in_quote && *++f != in_quote) { | |
348 | in_quote = '\0'; | |
349 | continue; | |
350 | } | |
351 | } | |
352 | *t++ = *f++; | |
353 | } | |
354 | *t++ = '\0'; | |
887e553f | 355 | } |
c627d613 | 356 | |
d9c7edf6 | 357 | /* check to see if we've already been given '-l user' in |
9af87151 | 358 | * the remote-shell command */ |
bb4aa89c WD |
359 | for (i = 0; i < argc-1; i++) { |
360 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
361 | dash_l_set = 1; | |
362 | } | |
363 | ||
4f5b0756 | 364 | #ifdef HAVE_REMSH |
366345fe AT |
365 | /* remsh (on HPUX) takes the arguments the other way around */ |
366 | args[argc++] = machine; | |
bb4aa89c | 367 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
368 | args[argc++] = "-l"; |
369 | args[argc++] = user; | |
370 | } | |
7b8356d0 | 371 | #else |
bb4aa89c | 372 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
373 | args[argc++] = "-l"; |
374 | args[argc++] = user; | |
375 | } | |
376 | args[argc++] = machine; | |
7b8356d0 | 377 | #endif |
c627d613 | 378 | |
366345fe | 379 | args[argc++] = rsync_path; |
c627d613 | 380 | |
9af87151 | 381 | if (blocking_io < 0) { |
90e22f4b WD |
382 | char *cp; |
383 | if ((cp = strrchr(cmd, '/')) != NULL) | |
384 | cp++; | |
385 | else | |
386 | cp = cmd; | |
387 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
388 | blocking_io = 1; | |
66b71163 | 389 | } |
e384bfbd | 390 | |
93689aa5 | 391 | server_options(args,&argc); |
e7a392c7 WD |
392 | |
393 | if (argc >= MAX_ARGS - 2) { | |
394 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
395 | exit_cleanup(RERR_SYNTAX); | |
396 | } | |
366345fe | 397 | } |
c627d613 | 398 | |
366345fe | 399 | args[argc++] = "."; |
76076c4b | 400 | |
d9c7edf6 | 401 | if (!daemon_over_rsh && path && *path) |
366345fe | 402 | args[argc++] = path; |
c627d613 | 403 | |
366345fe | 404 | args[argc] = NULL; |
c627d613 | 405 | |
366345fe | 406 | if (verbose > 3) { |
e7a392c7 | 407 | for (i = 0; i < argc; i++) |
45c49b52 | 408 | rprintf(FINFO, "cmd[%d]=%s ", i, args[i]); |
82f0c63e | 409 | rprintf(FINFO, "\n"); |
366345fe AT |
410 | } |
411 | ||
c0d8e84c WD |
412 | if (read_batch) { |
413 | int from_gen_pipe[2]; | |
414 | if (fd_pair(from_gen_pipe) < 0) { | |
415 | rsyserr(FERROR, errno, "pipe"); | |
416 | exit_cleanup(RERR_IPC); | |
417 | } | |
418 | batch_gen_fd = from_gen_pipe[0]; | |
419 | *f_out = from_gen_pipe[1]; | |
420 | *f_in = batch_fd; | |
421 | ret = -1; /* no child pid */ | |
422 | } else if (local_server) { | |
b1df18d7 WD |
423 | /* If the user didn't request --[no-]whole-file, force |
424 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 425 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 426 | whole_file = 1; |
25d34a5c | 427 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 428 | } else |
366345fe | 429 | ret = piped_child(args,f_in,f_out); |
c627d613 | 430 | |
3a69fad0 WD |
431 | if (dir) |
432 | free(dir); | |
82306bf6 | 433 | |
366345fe | 434 | return ret; |
c627d613 | 435 | |
acee11fc | 436 | oom: |
366345fe AT |
437 | out_of_memory("do_cmd"); |
438 | return 0; /* not reached */ | |
c627d613 AT |
439 | } |
440 | ||
eb598fac WD |
441 | /* The receiving side operates in one of two modes: |
442 | * | |
cc8c5057 WD |
443 | * 1. it receives any number of files into a destination directory, |
444 | * placing them according to their names in the file-list. | |
eb598fac WD |
445 | * |
446 | * 2. it receives a single file and saves it using the name in the | |
447 | * destination path instead of its file-list name. This requires a | |
448 | * "local name" for writing out the destination file. | |
449 | * | |
450 | * So, our task is to figure out what mode/local-name we need and return | |
451 | * either a NULL for mode 1, or the local-name for mode 2. We also | |
452 | * change directory if there are any path components in dest_path. */ | |
453 | static char *get_local_name(struct file_list *flist, char *dest_path) | |
c627d613 | 454 | { |
7a6421fa | 455 | STRUCT_STAT st; |
eb598fac | 456 | char *cp; |
c627d613 | 457 | |
eb598fac WD |
458 | if (verbose > 2) { |
459 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
460 | flist->count, NS(dest_path)); | |
461 | } | |
1f0610ef | 462 | |
ee8e2b15 | 463 | if (!dest_path || list_only) |
1f0610ef | 464 | return NULL; |
c95da96a | 465 | |
eb598fac WD |
466 | /* If the destination path refers to an existing directory, enter |
467 | * it and use mode 1. If there is something other than a directory | |
468 | * at the destination path, we must be transferring one file | |
469 | * (anything at the destination will be overwritten). */ | |
470 | if (do_stat(dest_path, &st) == 0) { | |
1ff5450d | 471 | if (S_ISDIR(st.st_mode)) { |
eb598fac | 472 | if (!push_dir(dest_path)) { |
982e05bb | 473 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 474 | full_fname(dest_path)); |
65417579 | 475 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
476 | } |
477 | return NULL; | |
478 | } | |
479 | if (flist->count > 1) { | |
eb598fac WD |
480 | rprintf(FERROR, |
481 | "ERROR: destination must be a directory when" | |
482 | " copying more than 1 file\n"); | |
65417579 | 483 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 484 | } |
44c26bf2 WD |
485 | /* Caution: flist->count could be 0! */ |
486 | if (flist->count == 1 && S_ISDIR(flist->files[0]->mode)) { | |
487 | rprintf(FERROR, | |
488 | "ERROR: cannot overwrite non-directory" | |
489 | " with a directory\n"); | |
490 | exit_cleanup(RERR_FILESELECT); | |
491 | } | |
cc8c5057 WD |
492 | } else if (errno != ENOENT) { |
493 | rsyserr(FERROR, errno, "cannot stat destination %s", | |
494 | full_fname(dest_path)); | |
495 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
496 | } |
497 | ||
eb598fac WD |
498 | cp = strrchr(dest_path, '/'); |
499 | ||
500 | /* If the destination path ends in a slash or we are transferring | |
501 | * multiple files, create a directory at the destination path, | |
502 | * enter the new directory, and use mode 1. */ | |
503 | if (flist->count > 1 || (cp && !cp[1])) { | |
504 | /* Lop off the final slash (if any). */ | |
505 | if (cp && !cp[1]) | |
506 | *cp = '\0'; | |
507 | ||
05278935 | 508 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
509 | rsyserr(FERROR, errno, "mkdir %s failed", |
510 | full_fname(dest_path)); | |
511 | exit_cleanup(RERR_FILEIO); | |
512 | } | |
1ff5450d | 513 | |
eb598fac WD |
514 | if (verbose) |
515 | rprintf(FINFO, "created directory %s\n", dest_path); | |
516 | ||
517 | if (dry_run) { | |
518 | /* Indicate that the destination directory doesn't | |
519 | * really exist and return mode 1. */ | |
520 | dry_run++; | |
521 | return NULL; | |
522 | } | |
523 | ||
524 | if (!push_dir(dest_path)) { | |
525 | rsyserr(FERROR, errno, "push_dir#2 %s failed", | |
526 | full_fname(dest_path)); | |
527 | exit_cleanup(RERR_FILESELECT); | |
528 | } | |
e5a96f0f | 529 | |
e5a96f0f | 530 | return NULL; |
1ff5450d AT |
531 | } |
532 | ||
eb598fac WD |
533 | /* Otherwise, we are writing a single file, possibly on top of an |
534 | * existing non-directory. Change to the item's parent directory | |
535 | * (if it has a path component), return the basename of the | |
536 | * destination file as the local name, and use mode 2. */ | |
537 | if (!cp) | |
538 | return dest_path; | |
539 | ||
540 | if (cp == dest_path) | |
541 | dest_path = "/"; | |
542 | ||
543 | *cp = '\0'; | |
544 | if (!push_dir(dest_path)) { | |
545 | rsyserr(FERROR, errno, "push_dir#3 %s failed", | |
546 | full_fname(dest_path)); | |
65417579 | 547 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 548 | } |
eb598fac | 549 | *cp = '/'; |
1ff5450d | 550 | |
eb598fac | 551 | return cp + 1; |
c627d613 AT |
552 | } |
553 | ||
554 | ||
1a8e5c97 | 555 | /* This is only called by the sender. */ |
3485ae83 | 556 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 557 | { |
1a8e5c97 WD |
558 | int i; |
559 | ||
560 | if (protocol_version < 29) | |
561 | i = read_int(f_in); | |
562 | else { | |
3485ae83 | 563 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
564 | && read_shortint(f_in) == ITEM_IS_NEW) { |
565 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 566 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
567 | write_shortint(f_out, ITEM_IS_NEW); |
568 | } | |
4e0fcd85 WD |
569 | } |
570 | ||
1a8e5c97 | 571 | if (i != -1) { |
c7791b8c WD |
572 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
573 | i, who_am_i()); | |
1a8e5c97 | 574 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
575 | } |
576 | } | |
577 | ||
578 | ||
eb598fac | 579 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 580 | { |
7a6421fa AT |
581 | struct file_list *flist; |
582 | char *dir = argv[0]; | |
c627d613 | 583 | |
45e08edb WD |
584 | if (verbose > 2) { |
585 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
586 | (long)getpid()); | |
587 | } | |
d9c7edf6 | 588 | |
2adbcdc7 | 589 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
590 | rprintf(FERROR, "ERROR: module is write only\n"); |
591 | exit_cleanup(RERR_SYNTAX); | |
592 | return; | |
593 | } | |
bf26aa22 WD |
594 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
595 | rprintf(FERROR, | |
596 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
597 | exit_cleanup(RERR_SYNTAX); | |
598 | return; | |
599 | } | |
7a92ded3 | 600 | |
59187666 | 601 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
602 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
603 | full_fname(dir)); | |
65417579 | 604 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
605 | } |
606 | argc--; | |
607 | argv++; | |
d9c7edf6 | 608 | |
48a1ff0d | 609 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 610 | argc = 1; |
7a6421fa AT |
611 | argv--; |
612 | argv[0] = "."; | |
613 | } | |
d9c7edf6 | 614 | |
7a6421fa | 615 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
616 | if (!flist || flist->count == 0) { |
617 | exit_cleanup(0); | |
618 | } | |
a00628b3 | 619 | the_file_list = flist; |
8d9dc9f9 | 620 | |
da3478b2 WD |
621 | io_start_buffering_in(); |
622 | io_start_buffering_out(); | |
623 | ||
7a6421fa | 624 | send_files(flist,f_out,f_in); |
f1e3656e | 625 | io_flush(FULL_FLUSH); |
33c4b445 | 626 | handle_stats(f_out); |
4e0fcd85 | 627 | if (protocol_version >= 24) |
3485ae83 | 628 | read_final_goodbye(f_in, f_out); |
f1e3656e | 629 | io_flush(FULL_FLUSH); |
7a6421fa | 630 | exit_cleanup(0); |
c627d613 AT |
631 | } |
632 | ||
633 | ||
dc5ddbcc AT |
634 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
635 | { | |
d186eb1a | 636 | int pid; |
84e6d6fd | 637 | int exit_code = 0; |
c70e07d9 | 638 | int error_pipe[2]; |
dc5ddbcc | 639 | |
bb6721dc WD |
640 | /* The receiving side mustn't obey this, or an existing symlink that |
641 | * points to an identical file won't be replaced by the referent. */ | |
a695b379 | 642 | copy_links = copy_dirlinks = 0; |
bb6721dc | 643 | |
d186eb1a | 644 | if (preserve_hard_links) |
3485ae83 | 645 | init_hard_links(); |
dc5ddbcc | 646 | |
c70e07d9 | 647 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 648 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 649 | exit_cleanup(RERR_IPC); |
554e0a8d | 650 | } |
d9c7edf6 | 651 | |
f1e3656e | 652 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 653 | |
ba449e44 | 654 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 655 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
656 | exit_cleanup(RERR_IPC); |
657 | } | |
658 | ||
659 | if (pid == 0) { | |
554e0a8d | 660 | close(error_pipe[0]); |
3a69fad0 WD |
661 | if (f_in != f_out) |
662 | close(f_out); | |
e08c9610 | 663 | |
554e0a8d | 664 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 665 | close_multiplexing_out(); |
554e0a8d AT |
666 | |
667 | /* set place to send errors */ | |
f1e3656e | 668 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 669 | |
c70e07d9 | 670 | recv_files(f_in, flist, local_name); |
f1e3656e | 671 | io_flush(FULL_FLUSH); |
33c4b445 | 672 | handle_stats(f_in); |
e08c9610 | 673 | |
f1e3656e WD |
674 | send_msg(MSG_DONE, "", 0); |
675 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 676 | |
40df65fd WD |
677 | /* Handle any keep-alive packets from the post-processing work |
678 | * that the generator does. */ | |
4e0fcd85 | 679 | if (protocol_version >= 29) { |
051182cb | 680 | kluge_around_eof = -1; |
1a8e5c97 WD |
681 | |
682 | /* This should only get stopped via a USR2 signal. */ | |
683 | while (read_int(f_in) == flist->count | |
684 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
685 | ||
3485ae83 WD |
686 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
687 | who_am_i()); | |
1a8e5c97 | 688 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
689 | } |
690 | ||
9e0582f9 WD |
691 | /* Finally, we go to sleep until our parent kills us with a |
692 | * USR2 signal. We sleep for a short time, as on some OSes | |
693 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
694 | while (1) |
695 | msleep(20); | |
d186eb1a | 696 | } |
dc5ddbcc | 697 | |
b695f242 | 698 | am_generator = 1; |
9eeb3b9c | 699 | close_multiplexing_in(); |
e8a96e27 | 700 | if (write_batch && !am_server) |
b9f592fb | 701 | stop_write_batch(); |
b695f242 | 702 | |
554e0a8d | 703 | close(error_pipe[1]); |
3a69fad0 WD |
704 | if (f_in != f_out) |
705 | close(f_in); | |
e1b3d5c4 | 706 | |
da3478b2 | 707 | io_start_buffering_out(); |
b3e10ed7 | 708 | |
f1e3656e | 709 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 710 | |
c70e07d9 | 711 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 712 | |
33c4b445 | 713 | handle_stats(-1); |
f1e3656e | 714 | io_flush(FULL_FLUSH); |
d04e9c51 | 715 | if (protocol_version >= 24) { |
8ada7518 AT |
716 | /* send a final goodbye message */ |
717 | write_int(f_out, -1); | |
718 | } | |
f1e3656e | 719 | io_flush(FULL_FLUSH); |
8ada7518 | 720 | |
f1e3656e | 721 | set_msg_fd_in(-1); |
089a2435 | 722 | kill(pid, SIGUSR2); |
84e6d6fd WD |
723 | wait_process_with_flush(pid, &exit_code); |
724 | return exit_code; | |
dc5ddbcc AT |
725 | } |
726 | ||
c627d613 | 727 | |
9486289c | 728 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 729 | { |
84e6d6fd | 730 | int exit_code; |
7a6421fa | 731 | struct file_list *flist; |
6c2e5b56 | 732 | char *local_name = NULL; |
7a6421fa | 733 | char *dir = NULL; |
07bff66f WD |
734 | int save_verbose = verbose; |
735 | ||
736 | if (filesfrom_fd >= 0) { | |
737 | /* We can't mix messages with files-from data on the socket, | |
738 | * so temporarily turn off verbose messages. */ | |
739 | verbose = 0; | |
740 | } | |
f0fca04e | 741 | |
45e08edb WD |
742 | if (verbose > 2) { |
743 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
744 | argc, (long)getpid()); | |
745 | } | |
09b7f5db | 746 | |
2adbcdc7 | 747 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
748 | rprintf(FERROR,"ERROR: module is read only\n"); |
749 | exit_cleanup(RERR_SYNTAX); | |
750 | return; | |
751 | } | |
752 | ||
7a6421fa AT |
753 | if (argc > 0) { |
754 | dir = argv[0]; | |
755 | argc--; | |
756 | argv++; | |
59187666 | 757 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
758 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
759 | full_fname(dir)); | |
65417579 | 760 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 761 | } |
7a6421fa | 762 | } |
c627d613 | 763 | |
da3478b2 | 764 | io_start_buffering_in(); |
57dee64e | 765 | recv_filter_list(f_in); |
c627d613 | 766 | |
7c2a9e76 | 767 | if (filesfrom_fd >= 0) { |
07bff66f WD |
768 | /* We need to send the files-from names to the sender at the |
769 | * same time that we receive the file-list from them, so we | |
770 | * need the IO routines to automatically write out the names | |
771 | * onto our f_out socket as we read the file-list. This | |
772 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
773 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
774 | filesfrom_fd = -1; | |
775 | } | |
776 | ||
b9f592fb | 777 | flist = recv_file_list(f_in); |
07bff66f | 778 | verbose = save_verbose; |
4c36a13e AT |
779 | if (!flist) { |
780 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 781 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 782 | } |
a00628b3 | 783 | the_file_list = flist; |
d9c7edf6 | 784 | |
29fad7a3 | 785 | if (argc > 0) |
7a6421fa | 786 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 787 | |
84e6d6fd WD |
788 | exit_code = do_recv(f_in,f_out,flist,local_name); |
789 | exit_cleanup(exit_code); | |
c627d613 AT |
790 | } |
791 | ||
792 | ||
734a94a2 | 793 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
794 | { |
795 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 796 | return 0; |
25d34a5c MP |
797 | } |
798 | ||
799 | ||
9486289c | 800 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 801 | { |
f0359dd0 AT |
802 | set_nonblocking(f_in); |
803 | set_nonblocking(f_out); | |
804 | ||
da3478b2 WD |
805 | io_set_sock_fds(f_in, f_out); |
806 | setup_protocol(f_out, f_in); | |
595251de | 807 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
808 | setup_iconv(); |
809 | #endif | |
da3478b2 | 810 | |
d04e9c51 | 811 | if (protocol_version >= 23) |
da3478b2 | 812 | io_start_multiplex_out(); |
7a6421fa | 813 | |
7a6421fa | 814 | if (am_sender) { |
83926d3c | 815 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
816 | if (need_messages_from_generator) |
817 | io_start_multiplex_in(); | |
9b3318b0 | 818 | |
7842418b | 819 | recv_filter_list(f_in); |
7a6421fa AT |
820 | do_server_sender(f_in, f_out, argc, argv); |
821 | } else { | |
822 | do_server_recv(f_in, f_out, argc, argv); | |
823 | } | |
824 | exit_cleanup(0); | |
366345fe AT |
825 | } |
826 | ||
0ba48136 MP |
827 | |
828 | /* | |
829 | * This is called once the connection has been negotiated. It is used | |
830 | * for rsyncd, remote-shell, and local connections. | |
831 | */ | |
19b27a48 | 832 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 833 | { |
088aac85 | 834 | struct file_list *flist = NULL; |
84e6d6fd | 835 | int exit_code = 0, exit_code2 = 0; |
9486289c | 836 | char *local_name = NULL; |
19b27a48 AT |
837 | |
838 | cleanup_child_pid = pid; | |
67a28eb2 | 839 | if (!read_batch) { |
b9f592fb WD |
840 | set_nonblocking(f_in); |
841 | set_nonblocking(f_out); | |
842 | } | |
f0359dd0 | 843 | |
da3478b2 | 844 | io_set_sock_fds(f_in, f_out); |
6d7b6081 | 845 | setup_protocol(f_out,f_in); |
595251de | 846 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
847 | setup_iconv(); |
848 | #endif | |
6d7b6081 | 849 | |
b9f592fb | 850 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 851 | io_start_multiplex_in(); |
d9c7edf6 | 852 | |
18882701 WD |
853 | /* We set our stderr file handle to blocking because ssh might have |
854 | * set it to non-blocking. This can be particularly troublesome if | |
855 | * stderr is a clone of stdout, because ssh would have set our stdout | |
856 | * to non-blocking at the same time (which can easily cause us to lose | |
857 | * output from our print statements). This kluge shouldn't cause ssh | |
858 | * any problems for how we use it. Note also that we delayed setting | |
859 | * this until after the above protocol setup so that we know for sure | |
860 | * that ssh is done twiddling its file descriptors. */ | |
861 | set_blocking(STDERR_FILENO); | |
862 | ||
9486289c | 863 | if (am_sender) { |
83926d3c | 864 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 865 | io_start_buffering_out(); |
860236bf | 866 | if (!filesfrom_host) |
a0a33ee5 | 867 | set_msg_fd_in(f_in); |
57dee64e | 868 | send_filter_list(f_out); |
860236bf | 869 | if (filesfrom_host) |
7c2a9e76 | 870 | filesfrom_fd = f_in; |
b9f592fb | 871 | |
e8a96e27 | 872 | if (write_batch && !am_server) |
b9f592fb | 873 | start_write_batch(f_out); |
a00628b3 | 874 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 875 | set_msg_fd_in(-1); |
d9c7edf6 | 876 | if (verbose > 3) |
9486289c | 877 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 878 | the_file_list = flist; |
e1b3d5c4 | 879 | |
f1e3656e | 880 | io_flush(NORMAL_FLUSH); |
9486289c | 881 | send_files(flist,f_out,f_in); |
f1e3656e | 882 | io_flush(FULL_FLUSH); |
33c4b445 | 883 | handle_stats(-1); |
4e0fcd85 | 884 | if (protocol_version >= 24) |
3485ae83 | 885 | read_final_goodbye(f_in, f_out); |
9486289c AT |
886 | if (pid != -1) { |
887 | if (verbose > 3) | |
08a740ff | 888 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 889 | io_flush(FULL_FLUSH); |
84e6d6fd | 890 | wait_process_with_flush(pid, &exit_code); |
9486289c | 891 | } |
33c4b445 | 892 | output_summary(); |
c87ae64a | 893 | io_flush(FULL_FLUSH); |
84e6d6fd | 894 | exit_cleanup(exit_code); |
9486289c | 895 | } |
f7632fc6 | 896 | |
bf26aa22 WD |
897 | if (need_messages_from_generator && !read_batch) |
898 | io_start_multiplex_out(); | |
899 | ||
48a1ff0d WD |
900 | if (argc == 0) |
901 | list_only |= 1; | |
d9c7edf6 | 902 | |
57dee64e | 903 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 904 | |
7c2a9e76 WD |
905 | if (filesfrom_fd >= 0) { |
906 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
907 | filesfrom_fd = -1; | |
908 | } | |
909 | ||
e8a96e27 | 910 | if (write_batch && !am_server) |
b9f592fb | 911 | start_write_batch(f_in); |
9486289c | 912 | flist = recv_file_list(f_in); |
a00628b3 | 913 | the_file_list = flist; |
d9c7edf6 | 914 | |
9d19f8a5 WD |
915 | if (flist && flist->count > 0) { |
916 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 917 | |
84e6d6fd | 918 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
919 | } else { |
920 | handle_stats(-1); | |
921 | output_summary(); | |
922 | } | |
d9c7edf6 | 923 | |
9486289c | 924 | if (pid != -1) { |
8d9dc9f9 | 925 | if (verbose > 3) |
08a740ff | 926 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 927 | io_flush(FULL_FLUSH); |
84e6d6fd | 928 | wait_process_with_flush(pid, &exit_code); |
9486289c | 929 | } |
d9c7edf6 | 930 | |
84e6d6fd | 931 | return MAX(exit_code, exit_code2); |
9486289c AT |
932 | } |
933 | ||
7169bb4a MP |
934 | static int copy_argv (char *argv[]) |
935 | { | |
936 | int i; | |
937 | ||
938 | for (i = 0; argv[i]; i++) { | |
939 | if (!(argv[i] = strdup(argv[i]))) { | |
940 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
941 | __FILE__, __LINE__); | |
942 | return RERR_MALLOC; | |
943 | } | |
944 | } | |
945 | ||
946 | return 0; | |
947 | } | |
948 | ||
949 | ||
c1a04ecb | 950 | /** |
0ba48136 MP |
951 | * Start a client for either type of remote connection. Work out |
952 | * whether the arguments request a remote shell or rsyncd connection, | |
953 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
954 | * |
955 | * Calls either start_socket_client (for sockets) or do_cmd and | |
956 | * client_run (for ssh). | |
c1a04ecb | 957 | **/ |
fc8a6b97 | 958 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
959 | { |
960 | char *p; | |
961 | char *shell_machine = NULL; | |
962 | char *shell_path = NULL; | |
963 | char *shell_user = NULL; | |
19b27a48 AT |
964 | int ret; |
965 | pid_t pid; | |
5d6bcd44 | 966 | int f_in,f_out; |
7169bb4a MP |
967 | int rc; |
968 | ||
969 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 970 | * command line. */ |
75aeac44 | 971 | if ((rc = copy_argv(argv))) |
7169bb4a | 972 | return rc; |
5d6bcd44 | 973 | |
d16c245f | 974 | if (!read_batch) { /* for read_batch, NO source is specified */ |
860236bf WD |
975 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
976 | if (shell_path) { /* source is remote */ | |
9425918d WD |
977 | char *dummy1; |
978 | int dummy2; | |
ee8e2b15 WD |
979 | if (--argc |
980 | && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { | |
9425918d WD |
981 | rprintf(FERROR, |
982 | "The source and destination cannot both be remote.\n"); | |
983 | exit_cleanup(RERR_SYNTAX); | |
984 | } | |
42ccb4c0 | 985 | argv++; |
860236bf WD |
986 | if (filesfrom_host && *filesfrom_host |
987 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 988 | rprintf(FERROR, |
50b31539 | 989 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
990 | exit_cleanup(RERR_SYNTAX); |
991 | } | |
860236bf | 992 | if (rsync_port) { |
d9c7edf6 | 993 | if (!shell_cmd) { |
860236bf WD |
994 | return start_socket_client(shell_machine, |
995 | shell_path, | |
42ccb4c0 | 996 | argc, argv); |
d9c7edf6 | 997 | } |
d9c7edf6 | 998 | daemon_over_rsh = 1; |
75aeac44 | 999 | } |
3591c066 | 1000 | |
42ccb4c0 WD |
1001 | am_sender = 0; |
1002 | } else { /* source is local, check dest arg */ | |
1003 | am_sender = 1; | |
1004 | ||
ee8e2b15 WD |
1005 | if (argc > 1) |
1006 | p = argv[--argc]; | |
1007 | else { | |
1008 | p = "."; | |
1009 | list_only = 1; | |
d9c7edf6 | 1010 | } |
a125c82a | 1011 | |
ee8e2b15 | 1012 | shell_path = check_for_hostspec(p, &shell_machine, &rsync_port); |
860236bf WD |
1013 | if (shell_path && filesfrom_host && *filesfrom_host |
1014 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1015 | rprintf(FERROR, |
50b31539 | 1016 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1017 | exit_cleanup(RERR_SYNTAX); |
1018 | } | |
860236bf | 1019 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1020 | local_server = 1; |
860236bf | 1021 | if (filesfrom_host) { |
7c2a9e76 | 1022 | rprintf(FERROR, |
50b31539 | 1023 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1024 | exit_cleanup(RERR_SYNTAX); |
1025 | } | |
860236bf | 1026 | shell_machine = NULL; |
ee8e2b15 | 1027 | shell_path = p; |
860236bf | 1028 | } else if (rsync_port) { |
d9c7edf6 | 1029 | if (!shell_cmd) { |
860236bf WD |
1030 | return start_socket_client(shell_machine, |
1031 | shell_path, | |
42ccb4c0 | 1032 | argc, argv); |
d9c7edf6 | 1033 | } |
d9c7edf6 | 1034 | daemon_over_rsh = 1; |
a125c82a | 1035 | } |
5d6bcd44 | 1036 | } |
d16c245f | 1037 | } else { /* read_batch */ |
d9c7edf6 WD |
1038 | local_server = 1; |
1039 | shell_path = argv[argc-1]; | |
860236bf | 1040 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1041 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1042 | exit_cleanup(RERR_SYNTAX); | |
1043 | } | |
6902ed17 MP |
1044 | } |
1045 | ||
5d6bcd44 | 1046 | if (shell_machine) { |
6fc048f4 | 1047 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1048 | if (p) { |
1049 | *p = 0; | |
1050 | shell_user = shell_machine; | |
1051 | shell_machine = p+1; | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | if (verbose > 3) { | |
9486289c | 1056 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1057 | shell_cmd ? shell_cmd : "", |
1058 | shell_machine ? shell_machine : "", | |
1059 | shell_user ? shell_user : "", | |
1060 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1061 | } |
d9c7edf6 | 1062 | |
d16c245f | 1063 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1064 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1065 | usage(FERROR); |
65417579 | 1066 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1067 | } |
27e3e9c9 | 1068 | |
d16c245f | 1069 | /* ... or no dest at all */ |
48a1ff0d WD |
1070 | if (!am_sender && argc == 0) |
1071 | list_only |= 1; | |
d9c7edf6 | 1072 | |
75aeac44 WD |
1073 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1074 | &f_in,&f_out); | |
1075 | ||
1076 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1077 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1078 | if (daemon_over_rsh) { |
1079 | int tmpret; | |
1080 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1081 | f_in, f_out, argc); | |
1082 | if (tmpret < 0) | |
1083 | return tmpret; | |
1084 | } | |
1085 | ||
fc8a6b97 AT |
1086 | ret = client_run(f_in, f_out, pid, argc, argv); |
1087 | ||
1088 | fflush(stdout); | |
1089 | fflush(stderr); | |
1090 | ||
1091 | return ret; | |
5d6bcd44 AT |
1092 | } |
1093 | ||
366345fe | 1094 | |
067669da WD |
1095 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1096 | { | |
6bf32edb | 1097 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1098 | } |
1099 | ||
067669da WD |
1100 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1101 | { | |
33c4b445 WD |
1102 | if (!am_server) |
1103 | output_summary(); | |
40df65fd | 1104 | close_all(); |
33c4b445 WD |
1105 | if (log_got_error) |
1106 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1107 | _exit(0); |
1108 | } | |
1109 | ||
6d59ac19 | 1110 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1111 | { |
029c1713 | 1112 | #ifdef WNOHANG |
ee7118a8 DD |
1113 | int cnt, status; |
1114 | pid_t pid; | |
1115 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1116 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1117 | * out we're instead saving the child exit statuses for later use. |
1118 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1119 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1120 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1121 | /* save the child's exit status */ |
1122 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1123 | if (pid_stat_table[cnt].pid == 0) { | |
1124 | pid_stat_table[cnt].pid = pid; | |
1125 | pid_stat_table[cnt].status = status; | |
1126 | break; | |
1127 | } | |
1128 | } | |
ee7118a8 | 1129 | } |
029c1713 | 1130 | #endif |
8261af74 | 1131 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1132 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1133 | #endif |
19b27a48 AT |
1134 | } |
1135 | ||
c0531332 MP |
1136 | |
1137 | /** | |
1138 | * This routine catches signals and tries to send them to gdb. | |
1139 | * | |
1140 | * Because it's called from inside a signal handler it ought not to | |
1141 | * use too many library routines. | |
1142 | * | |
1143 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1144 | * debugging without easy access to X. Perhaps use an environment | |
1145 | * variable, or just call a script? | |
1146 | * | |
1147 | * @todo The /proc/ magic probably only works on Linux (and | |
1148 | * Solaris?) Can we be more portable? | |
1149 | **/ | |
1150 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1151 | const char *get_panic_action(void) |
1152 | { | |
1153 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1154 | ||
1155 | if (cmd_fmt) | |
1156 | return cmd_fmt; | |
1157 | else | |
1158 | return "xterm -display :0 -T Panic -n Panic " | |
1159 | "-e gdb /proc/%d/exe %d"; | |
1160 | } | |
1161 | ||
1162 | ||
9fb3f7a9 MP |
1163 | /** |
1164 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1165 | * | |
1166 | * This signal handler is only installed if we were configured with | |
1167 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1168 | * should just look at the environment variable, but I'm a bit leery | |
1169 | * of a signal sending us into a busy loop. | |
1170 | **/ | |
067669da | 1171 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1172 | { |
1173 | char cmd_buf[300]; | |
1174 | int ret; | |
4fdc39dd MP |
1175 | |
1176 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1177 | getpid(), getpid()); |
1178 | ||
1179 | /* Unless we failed to execute gdb, we allow the process to | |
1180 | * continue. I'm not sure if that's right. */ | |
1181 | ret = system(cmd_buf); | |
1182 | if (ret) | |
1183 | _exit(ret); | |
1184 | } | |
1185 | #endif | |
1186 | ||
1187 | ||
5d6bcd44 | 1188 | int main(int argc,char *argv[]) |
d9c7edf6 | 1189 | { |
ff81e809 | 1190 | int ret; |
66a9dc96 WD |
1191 | int orig_argc = argc; |
1192 | char **orig_argv = argv; | |
8261af74 WD |
1193 | #ifdef HAVE_SIGACTION |
1194 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1195 | sigset_t sigmask; |
5d6bcd44 | 1196 | |
60ee01f5 | 1197 | sigemptyset(&sigmask); |
8261af74 | 1198 | # endif |
60ee01f5 WD |
1199 | sigact.sa_flags = SA_NOCLDSTOP; |
1200 | #endif | |
1201 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1202 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1203 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1204 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1205 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1206 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1207 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1208 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1209 | #endif | |
5d6bcd44 | 1210 | |
7a6421fa | 1211 | starttime = time(NULL); |
6fe05820 | 1212 | am_root = (MY_UID() == 0); |
c627d613 | 1213 | |
a800434a AT |
1214 | memset(&stats, 0, sizeof(stats)); |
1215 | ||
df5e03da AT |
1216 | if (argc < 2) { |
1217 | usage(FERROR); | |
65417579 | 1218 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1219 | } |
1220 | ||
7a6421fa | 1221 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1222 | * carried across */ |
05278935 | 1223 | orig_umask = umask(0); |
5d6bcd44 | 1224 | |
eb598fac WD |
1225 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1226 | setlocale(LC_CTYPE, ""); | |
1227 | #endif | |
1228 | ||
50135767 | 1229 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1230 | /* FIXME: We ought to call the same error-handling |
1231 | * code here, rather than relying on getopt. */ | |
50135767 | 1232 | option_error(); |
65417579 | 1233 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1234 | } |
5d6bcd44 | 1235 | |
60ee01f5 WD |
1236 | SIGACTMASK(SIGINT, sig_int); |
1237 | SIGACTMASK(SIGHUP, sig_int); | |
1238 | SIGACTMASK(SIGTERM, sig_int); | |
1239 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1240 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1241 | #endif | |
6b83141d | 1242 | |
34758d5c MP |
1243 | /* Ignore SIGPIPE; we consistently check error codes and will |
1244 | * see the EPIPE. */ | |
60ee01f5 | 1245 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1246 | #ifdef SIGXFSZ |
1247 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1248 | #endif | |
34758d5c | 1249 | |
c226b7c2 | 1250 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1251 | * (implemented by forking "pwd" and reading its output) doesn't |
1252 | * work when there are other child processes. Also, on all systems | |
1253 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1254 | push_dir(NULL); |
c226b7c2 | 1255 | |
44e9e221 WD |
1256 | init_flist(); |
1257 | ||
e8a96e27 | 1258 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1259 | if (write_batch) |
66a9dc96 | 1260 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1261 | |
dbbab0c4 WD |
1262 | if (read_batch && strcmp(batch_name, "-") == 0) |
1263 | batch_fd = STDIN_FILENO; | |
1264 | else { | |
1265 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1266 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1267 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1268 | } |
b9f592fb WD |
1269 | if (batch_fd < 0) { |
1270 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1271 | full_fname(batch_name)); |
b9f592fb WD |
1272 | exit_cleanup(RERR_FILEIO); |
1273 | } | |
9459290a WD |
1274 | if (read_batch) |
1275 | read_stream_flags(batch_fd); | |
6902ed17 | 1276 | } |
e8a96e27 WD |
1277 | if (write_batch < 0) |
1278 | dry_run = 1; | |
6902ed17 | 1279 | |
75aeac44 | 1280 | if (am_daemon && !am_server) |
7a6421fa | 1281 | return daemon_main(); |
f0fca04e | 1282 | |
08ac228f AT |
1283 | if (argc < 1) { |
1284 | usage(FERROR); | |
65417579 | 1285 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1286 | } |
1287 | ||
7a6421fa | 1288 | if (am_server) { |
f0359dd0 AT |
1289 | set_nonblocking(STDIN_FILENO); |
1290 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1291 | if (am_daemon) |
1292 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1293 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1294 | } | |
c627d613 | 1295 | |
ff81e809 | 1296 | ret = start_client(argc, argv); |
d9c7edf6 | 1297 | if (ret == -1) |
9098bbf3 | 1298 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1299 | else |
9098bbf3 MP |
1300 | exit_cleanup(ret); |
1301 | ||
0f5a04e3 | 1302 | return ret; |
c627d613 | 1303 | } |