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 | * | |
e7c67065 WD |
19 | * You should have received a copy of the GNU General Public License along |
20 | * with this program; if not, write to the Free Software Foundation, Inc., | |
21 | * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
0f78b815 | 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; | |
7c58c991 WD |
52 | extern int sanitize_paths; |
53 | extern int module_id; | |
32eda096 | 54 | extern int rsync_port; |
b1df18d7 | 55 | extern int whole_file; |
32eda096 WD |
56 | extern int read_batch; |
57 | extern int write_batch; | |
b9f592fb | 58 | extern int batch_fd; |
c0d8e84c | 59 | extern int batch_gen_fd; |
32eda096 WD |
60 | extern int filesfrom_fd; |
61 | extern pid_t cleanup_child_pid; | |
50839b4b | 62 | extern struct stats stats; |
860236bf | 63 | extern char *filesfrom_host; |
7c58c991 | 64 | extern char *basis_dir[]; |
32eda096 WD |
65 | extern char *rsync_path; |
66 | extern char *shell_cmd; | |
9b3318b0 | 67 | extern char *batch_name; |
57dee64e | 68 | |
7c58c991 WD |
69 | extern char curr_dir[MAXPATHLEN]; |
70 | ||
57dee64e | 71 | int local_server = 0; |
05278935 | 72 | mode_t orig_umask = 0; |
a00628b3 | 73 | struct file_list *the_file_list; |
c627d613 | 74 | |
91c5833b WD |
75 | /* There's probably never more than at most 2 outstanding child processes, |
76 | * but set it higher, just in case. */ | |
84e6d6fd | 77 | #define MAXCHILDPROCS 7 |
ee7118a8 | 78 | |
8261af74 WD |
79 | #ifdef HAVE_SIGACTION |
80 | # ifdef HAVE_SIGPROCMASK | |
81 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
82 | # else | |
83 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
84 | # endif | |
60ee01f5 WD |
85 | static struct sigaction sigact; |
86 | #endif | |
87 | ||
ee7118a8 DD |
88 | struct pid_status { |
89 | pid_t pid; | |
84e6d6fd | 90 | int status; |
ee7118a8 DD |
91 | } pid_stat_table[MAXCHILDPROCS]; |
92 | ||
33c4b445 WD |
93 | static time_t starttime, endtime; |
94 | static int64 total_read, total_written; | |
95 | ||
e5a2b854 | 96 | static void show_malloc_stats(void); |
82980a23 | 97 | |
97d8e709 | 98 | /* Works like waitpid(), but if we already harvested the child pid in our |
6d59ac19 | 99 | * remember_children(), we succeed instead of returning an error. */ |
97d8e709 | 100 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) |
82980a23 | 101 | { |
97d8e709 | 102 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 103 | |
6fb812f7 | 104 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 | 105 | /* Status of requested child no longer available: check to |
6d59ac19 | 106 | * see if it was processed by remember_children(). */ |
97d8e709 | 107 | int cnt; |
84e6d6fd | 108 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 109 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 110 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 111 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 112 | return pid; |
ee7118a8 DD |
113 | } |
114 | } | |
115 | } | |
116 | ||
97d8e709 WD |
117 | return waited_pid; |
118 | } | |
119 | ||
120 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 121 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
122 | { |
123 | pid_t waited_pid; | |
124 | int status; | |
125 | ||
126 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
127 | msleep(20); | |
128 | io_flush(FULL_FLUSH); | |
129 | } | |
130 | ||
d9c7edf6 WD |
131 | /* TODO: If the child exited on a signal, then log an |
132 | * appropriate error message. Perhaps we should also accept a | |
133 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 134 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
135 | if (waited_pid < 0) { |
136 | rsyserr(FERROR, errno, "waitpid"); | |
137 | *exit_code_ptr = RERR_WAITCHILD; | |
138 | } else if (!WIFEXITED(status)) { | |
40e6752f | 139 | #ifdef WCOREDUMP |
dbefb6b4 | 140 | if (WCOREDUMP(status)) |
84e6d6fd | 141 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
142 | else |
143 | #endif | |
144 | if (WIFSIGNALED(status)) | |
84e6d6fd | 145 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 146 | else |
84e6d6fd | 147 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 148 | } else |
84e6d6fd | 149 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
150 | } |
151 | ||
b9f592fb WD |
152 | /* This function gets called from all 3 processes. We want the client side |
153 | * to actually output the text, but the sender is the only process that has | |
154 | * all the stats we need. So, if we're a client sender, we do the report. | |
155 | * If we're a server sender, we write the stats on the supplied fd. If | |
156 | * we're the client receiver we read the stats from the supplied fd and do | |
157 | * the report. All processes might also generate a set of debug stats, if | |
158 | * the verbose level is high enough (this is the only thing that the | |
159 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 160 | static void handle_stats(int f) |
c627d613 | 161 | { |
33c4b445 WD |
162 | endtime = time(NULL); |
163 | ||
b9f592fb | 164 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
165 | total_read = stats.total_read; |
166 | total_written = stats.total_written; | |
7a6421fa | 167 | |
7bb7058e | 168 | if (do_stats && verbose > 1) { |
5c15e29f | 169 | /* These come out from every process */ |
7bb7058e | 170 | show_malloc_stats(); |
86943126 | 171 | show_flist_stats(); |
5c15e29f MP |
172 | } |
173 | ||
e5fbaa71 S |
174 | if (am_generator) |
175 | return; | |
176 | ||
248fbb8c | 177 | if (am_daemon) { |
a9766ef1 | 178 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
179 | if (f == -1 || !am_sender) |
180 | return; | |
248fbb8c AT |
181 | } |
182 | ||
e19452a9 | 183 | if (am_server) { |
3e491682 | 184 | if (am_sender) { |
b9f592fb WD |
185 | write_longint(f, total_read); |
186 | write_longint(f, total_written); | |
187 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
188 | if (protocol_version >= 29) { |
189 | write_longint(f, stats.flist_buildtime); | |
190 | write_longint(f, stats.flist_xfertime); | |
191 | } | |
e19452a9 | 192 | } |
7a6421fa AT |
193 | return; |
194 | } | |
e19452a9 DD |
195 | |
196 | /* this is the client */ | |
d9c7edf6 | 197 | |
9d19f8a5 | 198 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
0f78b815 | 199 | ; |
9d19f8a5 | 200 | else if (!am_sender) { |
58c5c245 WD |
201 | /* Read the first two in opposite order because the meaning of |
202 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
203 | total_written = read_longint(f); |
204 | total_read = read_longint(f); | |
a800434a | 205 | stats.total_size = read_longint(f); |
f0f7e760 WD |
206 | if (protocol_version >= 29) { |
207 | stats.flist_buildtime = read_longint(f); | |
208 | stats.flist_xfertime = read_longint(f); | |
209 | } | |
e4676bb5 | 210 | } else if (write_batch) { |
b9f592fb WD |
211 | /* The --read-batch process is going to be a client |
212 | * receiver, so we need to give it the stats. */ | |
213 | write_longint(batch_fd, total_read); | |
214 | write_longint(batch_fd, total_written); | |
215 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
216 | if (protocol_version >= 29) { |
217 | write_longint(batch_fd, stats.flist_buildtime); | |
218 | write_longint(batch_fd, stats.flist_xfertime); | |
219 | } | |
a800434a | 220 | } |
e4676bb5 | 221 | } |
a800434a | 222 | |
e4676bb5 WD |
223 | static void output_summary(void) |
224 | { | |
a800434a | 225 | if (do_stats) { |
1f658d42 | 226 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
227 | rprintf(FINFO,"Number of files transferred: %d\n", |
228 | stats.num_transferred_files); | |
60613dc8 WD |
229 | rprintf(FINFO,"Total file size: %s bytes\n", |
230 | human_num(stats.total_size)); | |
231 | rprintf(FINFO,"Total transferred file size: %s bytes\n", | |
232 | human_num(stats.total_transferred_size)); | |
233 | rprintf(FINFO,"Literal data: %s bytes\n", | |
234 | human_num(stats.literal_data)); | |
235 | rprintf(FINFO,"Matched data: %s bytes\n", | |
236 | human_num(stats.matched_data)); | |
1f658d42 | 237 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
238 | if (stats.flist_buildtime) { |
239 | rprintf(FINFO, | |
240 | "File list generation time: %.3f seconds\n", | |
241 | (double)stats.flist_buildtime / 1000); | |
242 | rprintf(FINFO, | |
243 | "File list transfer time: %.3f seconds\n", | |
244 | (double)stats.flist_xfertime / 1000); | |
245 | } | |
60613dc8 WD |
246 | rprintf(FINFO,"Total bytes sent: %s\n", |
247 | human_num(total_written)); | |
248 | rprintf(FINFO,"Total bytes received: %s\n", | |
249 | human_num(total_read)); | |
7a6421fa | 250 | } |
d9c7edf6 | 251 | |
e19452a9 | 252 | if (verbose || do_stats) { |
b9f592fb | 253 | rprintf(FINFO, |
60613dc8 WD |
254 | "\nsent %s bytes received %s bytes %s bytes/sec\n", |
255 | human_num(total_written), human_num(total_read), | |
256 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); | |
257 | rprintf(FINFO, "total size is %s speedup is %.2f\n", | |
258 | human_num(stats.total_size), | |
b9f592fb | 259 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 260 | } |
fc8a6b97 AT |
261 | |
262 | fflush(stdout); | |
263 | fflush(stderr); | |
c627d613 AT |
264 | } |
265 | ||
266 | ||
e5a2b854 MP |
267 | /** |
268 | * If our C library can get malloc statistics, then show them to FINFO | |
269 | **/ | |
270 | static void show_malloc_stats(void) | |
271 | { | |
4f5b0756 | 272 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
273 | struct mallinfo mi; |
274 | ||
275 | mi = mallinfo(); | |
276 | ||
ce672562 | 277 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
278 | getpid(), am_server ? "server " : "", |
279 | am_daemon ? "daemon " : "", who_am_i()); | |
280 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
281 | (long)mi.arena); | |
282 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
283 | (long)mi.ordblks); | |
284 | rprintf(FINFO, " smblks: %10ld\n", | |
285 | (long)mi.smblks); | |
286 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
287 | (long)mi.hblks); | |
288 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
289 | (long)mi.hblkhd); | |
290 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
291 | (long)mi.arena + mi.hblkhd); | |
292 | rprintf(FINFO, " usmblks: %10ld\n", | |
293 | (long)mi.usmblks); | |
294 | rprintf(FINFO, " fsmblks: %10ld\n", | |
295 | (long)mi.fsmblks); | |
296 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
297 | (long)mi.uordblks); | |
298 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
299 | (long)mi.fordblks); | |
300 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
301 | (long)mi.keepcost); | |
e5a2b854 MP |
302 | #endif /* HAVE_MALLINFO */ |
303 | } | |
304 | ||
305 | ||
0882faa2 | 306 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
307 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
308 | int *f_in, int *f_out) | |
c627d613 | 309 | { |
6c2e5b56 | 310 | int i, argc = 0; |
887e553f | 311 | char *args[MAX_ARGS]; |
19b27a48 | 312 | pid_t ret; |
82f0c63e | 313 | char *dir = NULL; |
bb4aa89c | 314 | int dash_l_set = 0; |
366345fe | 315 | |
088aac85 | 316 | if (!read_batch && !local_server) { |
82f0c63e | 317 | char *t, *f, in_quote = '\0'; |
9af87151 | 318 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 319 | if (!cmd) |
9af87151 | 320 | cmd = rsh_env; |
366345fe AT |
321 | if (!cmd) |
322 | cmd = RSYNC_RSH; | |
323 | cmd = strdup(cmd); | |
d9c7edf6 | 324 | if (!cmd) |
366345fe AT |
325 | goto oom; |
326 | ||
82f0c63e WD |
327 | for (t = f = cmd; *f; f++) { |
328 | if (*f == ' ') | |
329 | continue; | |
e7a392c7 | 330 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 331 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 332 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
333 | exit_cleanup(RERR_SYNTAX); |
334 | } | |
82f0c63e WD |
335 | args[argc++] = t; |
336 | while (*f != ' ' || in_quote) { | |
337 | if (!*f) { | |
338 | if (in_quote) { | |
339 | rprintf(FERROR, | |
340 | "Missing trailing-%c in remote-shell command.\n", | |
341 | in_quote); | |
342 | exit_cleanup(RERR_SYNTAX); | |
343 | } | |
344 | f--; | |
345 | break; | |
346 | } | |
347 | if (*f == '\'' || *f == '"') { | |
348 | if (!in_quote) { | |
349 | in_quote = *f++; | |
350 | continue; | |
351 | } | |
352 | if (*f == in_quote && *++f != in_quote) { | |
353 | in_quote = '\0'; | |
354 | continue; | |
355 | } | |
356 | } | |
357 | *t++ = *f++; | |
358 | } | |
359 | *t++ = '\0'; | |
887e553f | 360 | } |
c627d613 | 361 | |
d9c7edf6 | 362 | /* check to see if we've already been given '-l user' in |
9af87151 | 363 | * the remote-shell command */ |
bb4aa89c WD |
364 | for (i = 0; i < argc-1; i++) { |
365 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
366 | dash_l_set = 1; | |
367 | } | |
368 | ||
4f5b0756 | 369 | #ifdef HAVE_REMSH |
366345fe AT |
370 | /* remsh (on HPUX) takes the arguments the other way around */ |
371 | args[argc++] = machine; | |
bb4aa89c | 372 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
373 | args[argc++] = "-l"; |
374 | args[argc++] = user; | |
375 | } | |
7b8356d0 | 376 | #else |
bb4aa89c | 377 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
378 | args[argc++] = "-l"; |
379 | args[argc++] = user; | |
380 | } | |
381 | args[argc++] = machine; | |
7b8356d0 | 382 | #endif |
c627d613 | 383 | |
366345fe | 384 | args[argc++] = rsync_path; |
c627d613 | 385 | |
9af87151 | 386 | if (blocking_io < 0) { |
90e22f4b WD |
387 | char *cp; |
388 | if ((cp = strrchr(cmd, '/')) != NULL) | |
389 | cp++; | |
390 | else | |
391 | cp = cmd; | |
392 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
393 | blocking_io = 1; | |
66b71163 | 394 | } |
e384bfbd | 395 | |
93689aa5 | 396 | server_options(args,&argc); |
e7a392c7 WD |
397 | |
398 | if (argc >= MAX_ARGS - 2) { | |
399 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
400 | exit_cleanup(RERR_SYNTAX); | |
401 | } | |
366345fe | 402 | } |
c627d613 | 403 | |
366345fe | 404 | args[argc++] = "."; |
76076c4b | 405 | |
d9c7edf6 | 406 | if (!daemon_over_rsh && path && *path) |
366345fe | 407 | args[argc++] = path; |
c627d613 | 408 | |
366345fe | 409 | args[argc] = NULL; |
c627d613 | 410 | |
366345fe | 411 | if (verbose > 3) { |
e7a392c7 | 412 | for (i = 0; i < argc; i++) |
45c49b52 | 413 | rprintf(FINFO, "cmd[%d]=%s ", i, args[i]); |
82f0c63e | 414 | rprintf(FINFO, "\n"); |
366345fe AT |
415 | } |
416 | ||
c0d8e84c WD |
417 | if (read_batch) { |
418 | int from_gen_pipe[2]; | |
419 | if (fd_pair(from_gen_pipe) < 0) { | |
420 | rsyserr(FERROR, errno, "pipe"); | |
421 | exit_cleanup(RERR_IPC); | |
422 | } | |
423 | batch_gen_fd = from_gen_pipe[0]; | |
424 | *f_out = from_gen_pipe[1]; | |
425 | *f_in = batch_fd; | |
426 | ret = -1; /* no child pid */ | |
427 | } else if (local_server) { | |
b1df18d7 WD |
428 | /* If the user didn't request --[no-]whole-file, force |
429 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 430 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 431 | whole_file = 1; |
25d34a5c | 432 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 433 | } else |
366345fe | 434 | ret = piped_child(args,f_in,f_out); |
c627d613 | 435 | |
3a69fad0 WD |
436 | if (dir) |
437 | free(dir); | |
82306bf6 | 438 | |
366345fe | 439 | return ret; |
c627d613 | 440 | |
acee11fc | 441 | oom: |
366345fe AT |
442 | out_of_memory("do_cmd"); |
443 | return 0; /* not reached */ | |
c627d613 AT |
444 | } |
445 | ||
eb598fac WD |
446 | /* The receiving side operates in one of two modes: |
447 | * | |
cc8c5057 WD |
448 | * 1. it receives any number of files into a destination directory, |
449 | * placing them according to their names in the file-list. | |
eb598fac WD |
450 | * |
451 | * 2. it receives a single file and saves it using the name in the | |
452 | * destination path instead of its file-list name. This requires a | |
453 | * "local name" for writing out the destination file. | |
454 | * | |
455 | * So, our task is to figure out what mode/local-name we need and return | |
456 | * either a NULL for mode 1, or the local-name for mode 2. We also | |
457 | * change directory if there are any path components in dest_path. */ | |
458 | static char *get_local_name(struct file_list *flist, char *dest_path) | |
c627d613 | 459 | { |
7a6421fa | 460 | STRUCT_STAT st; |
eb598fac | 461 | char *cp; |
c627d613 | 462 | |
eb598fac WD |
463 | if (verbose > 2) { |
464 | rprintf(FINFO, "get_local_name count=%d %s\n", | |
465 | flist->count, NS(dest_path)); | |
466 | } | |
1f0610ef | 467 | |
ee8e2b15 | 468 | if (!dest_path || list_only) |
1f0610ef | 469 | return NULL; |
c95da96a | 470 | |
eb598fac WD |
471 | /* If the destination path refers to an existing directory, enter |
472 | * it and use mode 1. If there is something other than a directory | |
473 | * at the destination path, we must be transferring one file | |
474 | * (anything at the destination will be overwritten). */ | |
475 | if (do_stat(dest_path, &st) == 0) { | |
1ff5450d | 476 | if (S_ISDIR(st.st_mode)) { |
eb598fac | 477 | if (!push_dir(dest_path)) { |
982e05bb | 478 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
eb598fac | 479 | full_fname(dest_path)); |
65417579 | 480 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
481 | } |
482 | return NULL; | |
483 | } | |
484 | if (flist->count > 1) { | |
eb598fac WD |
485 | rprintf(FERROR, |
486 | "ERROR: destination must be a directory when" | |
487 | " copying more than 1 file\n"); | |
65417579 | 488 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 489 | } |
44c26bf2 WD |
490 | /* Caution: flist->count could be 0! */ |
491 | if (flist->count == 1 && S_ISDIR(flist->files[0]->mode)) { | |
492 | rprintf(FERROR, | |
493 | "ERROR: cannot overwrite non-directory" | |
494 | " with a directory\n"); | |
495 | exit_cleanup(RERR_FILESELECT); | |
496 | } | |
cc8c5057 WD |
497 | } else if (errno != ENOENT) { |
498 | rsyserr(FERROR, errno, "cannot stat destination %s", | |
499 | full_fname(dest_path)); | |
500 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
501 | } |
502 | ||
eb598fac WD |
503 | cp = strrchr(dest_path, '/'); |
504 | ||
505 | /* If the destination path ends in a slash or we are transferring | |
506 | * multiple files, create a directory at the destination path, | |
507 | * enter the new directory, and use mode 1. */ | |
508 | if (flist->count > 1 || (cp && !cp[1])) { | |
509 | /* Lop off the final slash (if any). */ | |
510 | if (cp && !cp[1]) | |
511 | *cp = '\0'; | |
512 | ||
05278935 | 513 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
514 | rsyserr(FERROR, errno, "mkdir %s failed", |
515 | full_fname(dest_path)); | |
516 | exit_cleanup(RERR_FILEIO); | |
517 | } | |
1ff5450d | 518 | |
eb598fac WD |
519 | if (verbose) |
520 | rprintf(FINFO, "created directory %s\n", dest_path); | |
521 | ||
522 | if (dry_run) { | |
523 | /* Indicate that the destination directory doesn't | |
524 | * really exist and return mode 1. */ | |
525 | dry_run++; | |
526 | return NULL; | |
527 | } | |
528 | ||
529 | if (!push_dir(dest_path)) { | |
530 | rsyserr(FERROR, errno, "push_dir#2 %s failed", | |
531 | full_fname(dest_path)); | |
532 | exit_cleanup(RERR_FILESELECT); | |
533 | } | |
e5a96f0f | 534 | |
e5a96f0f | 535 | return NULL; |
1ff5450d AT |
536 | } |
537 | ||
eb598fac WD |
538 | /* Otherwise, we are writing a single file, possibly on top of an |
539 | * existing non-directory. Change to the item's parent directory | |
540 | * (if it has a path component), return the basename of the | |
541 | * destination file as the local name, and use mode 2. */ | |
542 | if (!cp) | |
543 | return dest_path; | |
544 | ||
545 | if (cp == dest_path) | |
546 | dest_path = "/"; | |
547 | ||
548 | *cp = '\0'; | |
549 | if (!push_dir(dest_path)) { | |
550 | rsyserr(FERROR, errno, "push_dir#3 %s failed", | |
551 | full_fname(dest_path)); | |
65417579 | 552 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 553 | } |
eb598fac | 554 | *cp = '/'; |
1ff5450d | 555 | |
eb598fac | 556 | return cp + 1; |
c627d613 AT |
557 | } |
558 | ||
559 | ||
1a8e5c97 | 560 | /* This is only called by the sender. */ |
3485ae83 | 561 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 562 | { |
1a8e5c97 WD |
563 | int i; |
564 | ||
565 | if (protocol_version < 29) | |
566 | i = read_int(f_in); | |
567 | else { | |
3485ae83 | 568 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
569 | && read_shortint(f_in) == ITEM_IS_NEW) { |
570 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 571 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
572 | write_shortint(f_out, ITEM_IS_NEW); |
573 | } | |
4e0fcd85 WD |
574 | } |
575 | ||
1a8e5c97 | 576 | if (i != -1) { |
c7791b8c WD |
577 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
578 | i, who_am_i()); | |
1a8e5c97 | 579 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
580 | } |
581 | } | |
582 | ||
583 | ||
eb598fac | 584 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 585 | { |
7a6421fa AT |
586 | struct file_list *flist; |
587 | char *dir = argv[0]; | |
c627d613 | 588 | |
45e08edb WD |
589 | if (verbose > 2) { |
590 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
591 | (long)getpid()); | |
592 | } | |
d9c7edf6 | 593 | |
2adbcdc7 | 594 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
595 | rprintf(FERROR, "ERROR: module is write only\n"); |
596 | exit_cleanup(RERR_SYNTAX); | |
597 | return; | |
598 | } | |
bf26aa22 WD |
599 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
600 | rprintf(FERROR, | |
601 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
602 | exit_cleanup(RERR_SYNTAX); | |
603 | return; | |
604 | } | |
7a92ded3 | 605 | |
59187666 | 606 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
607 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
608 | full_fname(dir)); | |
65417579 | 609 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
610 | } |
611 | argc--; | |
612 | argv++; | |
d9c7edf6 | 613 | |
48a1ff0d | 614 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 615 | argc = 1; |
7a6421fa AT |
616 | argv--; |
617 | argv[0] = "."; | |
618 | } | |
d9c7edf6 | 619 | |
7a6421fa | 620 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
621 | if (!flist || flist->count == 0) { |
622 | exit_cleanup(0); | |
623 | } | |
a00628b3 | 624 | the_file_list = flist; |
8d9dc9f9 | 625 | |
da3478b2 WD |
626 | io_start_buffering_in(); |
627 | io_start_buffering_out(); | |
628 | ||
7a6421fa | 629 | send_files(flist,f_out,f_in); |
f1e3656e | 630 | io_flush(FULL_FLUSH); |
33c4b445 | 631 | handle_stats(f_out); |
4e0fcd85 | 632 | if (protocol_version >= 24) |
3485ae83 | 633 | read_final_goodbye(f_in, f_out); |
f1e3656e | 634 | io_flush(FULL_FLUSH); |
7a6421fa | 635 | exit_cleanup(0); |
c627d613 AT |
636 | } |
637 | ||
638 | ||
dc5ddbcc AT |
639 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
640 | { | |
d186eb1a | 641 | int pid; |
84e6d6fd | 642 | int exit_code = 0; |
c70e07d9 | 643 | int error_pipe[2]; |
dc5ddbcc | 644 | |
bb6721dc WD |
645 | /* The receiving side mustn't obey this, or an existing symlink that |
646 | * points to an identical file won't be replaced by the referent. */ | |
a695b379 | 647 | copy_links = copy_dirlinks = 0; |
bb6721dc | 648 | |
d186eb1a | 649 | if (preserve_hard_links) |
3485ae83 | 650 | init_hard_links(); |
dc5ddbcc | 651 | |
c70e07d9 | 652 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 653 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 654 | exit_cleanup(RERR_IPC); |
554e0a8d | 655 | } |
d9c7edf6 | 656 | |
f1e3656e | 657 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 658 | |
ba449e44 | 659 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 660 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
661 | exit_cleanup(RERR_IPC); |
662 | } | |
663 | ||
664 | if (pid == 0) { | |
554e0a8d | 665 | close(error_pipe[0]); |
3a69fad0 WD |
666 | if (f_in != f_out) |
667 | close(f_out); | |
e08c9610 | 668 | |
554e0a8d | 669 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 670 | close_multiplexing_out(); |
554e0a8d AT |
671 | |
672 | /* set place to send errors */ | |
f1e3656e | 673 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 674 | |
c70e07d9 | 675 | recv_files(f_in, flist, local_name); |
f1e3656e | 676 | io_flush(FULL_FLUSH); |
33c4b445 | 677 | handle_stats(f_in); |
e08c9610 | 678 | |
f1e3656e WD |
679 | send_msg(MSG_DONE, "", 0); |
680 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 681 | |
40df65fd WD |
682 | /* Handle any keep-alive packets from the post-processing work |
683 | * that the generator does. */ | |
4e0fcd85 | 684 | if (protocol_version >= 29) { |
051182cb | 685 | kluge_around_eof = -1; |
1a8e5c97 WD |
686 | |
687 | /* This should only get stopped via a USR2 signal. */ | |
688 | while (read_int(f_in) == flist->count | |
689 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
690 | ||
3485ae83 WD |
691 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
692 | who_am_i()); | |
1a8e5c97 | 693 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
694 | } |
695 | ||
9e0582f9 WD |
696 | /* Finally, we go to sleep until our parent kills us with a |
697 | * USR2 signal. We sleep for a short time, as on some OSes | |
698 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
699 | while (1) |
700 | msleep(20); | |
d186eb1a | 701 | } |
dc5ddbcc | 702 | |
b695f242 | 703 | am_generator = 1; |
9eeb3b9c | 704 | close_multiplexing_in(); |
e8a96e27 | 705 | if (write_batch && !am_server) |
b9f592fb | 706 | stop_write_batch(); |
b695f242 | 707 | |
554e0a8d | 708 | close(error_pipe[1]); |
3a69fad0 WD |
709 | if (f_in != f_out) |
710 | close(f_in); | |
e1b3d5c4 | 711 | |
da3478b2 | 712 | io_start_buffering_out(); |
b3e10ed7 | 713 | |
f1e3656e | 714 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 715 | |
c70e07d9 | 716 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 717 | |
33c4b445 | 718 | handle_stats(-1); |
f1e3656e | 719 | io_flush(FULL_FLUSH); |
d04e9c51 | 720 | if (protocol_version >= 24) { |
8ada7518 AT |
721 | /* send a final goodbye message */ |
722 | write_int(f_out, -1); | |
723 | } | |
f1e3656e | 724 | io_flush(FULL_FLUSH); |
8ada7518 | 725 | |
f1e3656e | 726 | set_msg_fd_in(-1); |
089a2435 | 727 | kill(pid, SIGUSR2); |
84e6d6fd WD |
728 | wait_process_with_flush(pid, &exit_code); |
729 | return exit_code; | |
dc5ddbcc AT |
730 | } |
731 | ||
c627d613 | 732 | |
9486289c | 733 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 734 | { |
84e6d6fd | 735 | int exit_code; |
7a6421fa | 736 | struct file_list *flist; |
6c2e5b56 | 737 | char *local_name = NULL; |
7a6421fa | 738 | char *dir = NULL; |
07bff66f WD |
739 | int save_verbose = verbose; |
740 | ||
741 | if (filesfrom_fd >= 0) { | |
742 | /* We can't mix messages with files-from data on the socket, | |
743 | * so temporarily turn off verbose messages. */ | |
744 | verbose = 0; | |
745 | } | |
f0fca04e | 746 | |
45e08edb WD |
747 | if (verbose > 2) { |
748 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
749 | argc, (long)getpid()); | |
750 | } | |
09b7f5db | 751 | |
2adbcdc7 | 752 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
753 | rprintf(FERROR,"ERROR: module is read only\n"); |
754 | exit_cleanup(RERR_SYNTAX); | |
755 | return; | |
756 | } | |
757 | ||
7a6421fa AT |
758 | if (argc > 0) { |
759 | dir = argv[0]; | |
760 | argc--; | |
761 | argv++; | |
59187666 | 762 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
763 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
764 | full_fname(dir)); | |
65417579 | 765 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 766 | } |
7a6421fa | 767 | } |
c627d613 | 768 | |
da3478b2 | 769 | io_start_buffering_in(); |
57dee64e | 770 | recv_filter_list(f_in); |
c627d613 | 771 | |
7c2a9e76 | 772 | if (filesfrom_fd >= 0) { |
07bff66f WD |
773 | /* We need to send the files-from names to the sender at the |
774 | * same time that we receive the file-list from them, so we | |
775 | * need the IO routines to automatically write out the names | |
776 | * onto our f_out socket as we read the file-list. This | |
777 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
778 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
779 | filesfrom_fd = -1; | |
780 | } | |
781 | ||
b9f592fb | 782 | flist = recv_file_list(f_in); |
07bff66f | 783 | verbose = save_verbose; |
4c36a13e AT |
784 | if (!flist) { |
785 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 786 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 787 | } |
a00628b3 | 788 | the_file_list = flist; |
d9c7edf6 | 789 | |
29fad7a3 | 790 | if (argc > 0) |
7a6421fa | 791 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 792 | |
7c58c991 WD |
793 | /* Now that we know what our destination directory turned out to be, |
794 | * we can sanitize the --link-/copy-/compare-dest args correctly. */ | |
795 | if (sanitize_paths) { | |
796 | char *dest_path = curr_dir + strlen(lp_path(module_id)); | |
797 | int dest_depth = count_dir_elements(dest_path); | |
798 | char **dir; | |
799 | for (dir = basis_dir; *dir; dir++) | |
800 | *dir = sanitize_path(NULL, *dir, NULL, dest_depth); | |
801 | } | |
802 | ||
84e6d6fd WD |
803 | exit_code = do_recv(f_in,f_out,flist,local_name); |
804 | exit_cleanup(exit_code); | |
c627d613 AT |
805 | } |
806 | ||
807 | ||
734a94a2 | 808 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
809 | { |
810 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 811 | return 0; |
25d34a5c MP |
812 | } |
813 | ||
814 | ||
9486289c | 815 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 816 | { |
f0359dd0 AT |
817 | set_nonblocking(f_in); |
818 | set_nonblocking(f_out); | |
819 | ||
da3478b2 WD |
820 | io_set_sock_fds(f_in, f_out); |
821 | setup_protocol(f_out, f_in); | |
595251de | 822 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
823 | setup_iconv(); |
824 | #endif | |
da3478b2 | 825 | |
d04e9c51 | 826 | if (protocol_version >= 23) |
da3478b2 | 827 | io_start_multiplex_out(); |
7a6421fa | 828 | |
7a6421fa | 829 | if (am_sender) { |
83926d3c | 830 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
831 | if (need_messages_from_generator) |
832 | io_start_multiplex_in(); | |
9b3318b0 | 833 | |
7842418b | 834 | recv_filter_list(f_in); |
7a6421fa AT |
835 | do_server_sender(f_in, f_out, argc, argv); |
836 | } else { | |
837 | do_server_recv(f_in, f_out, argc, argv); | |
838 | } | |
839 | exit_cleanup(0); | |
366345fe AT |
840 | } |
841 | ||
0ba48136 MP |
842 | |
843 | /* | |
844 | * This is called once the connection has been negotiated. It is used | |
845 | * for rsyncd, remote-shell, and local connections. | |
846 | */ | |
19b27a48 | 847 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 848 | { |
088aac85 | 849 | struct file_list *flist = NULL; |
84e6d6fd | 850 | int exit_code = 0, exit_code2 = 0; |
9486289c | 851 | char *local_name = NULL; |
19b27a48 AT |
852 | |
853 | cleanup_child_pid = pid; | |
67a28eb2 | 854 | if (!read_batch) { |
b9f592fb WD |
855 | set_nonblocking(f_in); |
856 | set_nonblocking(f_out); | |
857 | } | |
f0359dd0 | 858 | |
da3478b2 | 859 | io_set_sock_fds(f_in, f_out); |
6d7b6081 | 860 | setup_protocol(f_out,f_in); |
595251de | 861 | #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H |
9656de5d WD |
862 | setup_iconv(); |
863 | #endif | |
6d7b6081 | 864 | |
b9f592fb | 865 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 866 | io_start_multiplex_in(); |
d9c7edf6 | 867 | |
18882701 WD |
868 | /* We set our stderr file handle to blocking because ssh might have |
869 | * set it to non-blocking. This can be particularly troublesome if | |
870 | * stderr is a clone of stdout, because ssh would have set our stdout | |
871 | * to non-blocking at the same time (which can easily cause us to lose | |
872 | * output from our print statements). This kluge shouldn't cause ssh | |
873 | * any problems for how we use it. Note also that we delayed setting | |
874 | * this until after the above protocol setup so that we know for sure | |
875 | * that ssh is done twiddling its file descriptors. */ | |
876 | set_blocking(STDERR_FILENO); | |
877 | ||
9486289c | 878 | if (am_sender) { |
83926d3c | 879 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 880 | io_start_buffering_out(); |
860236bf | 881 | if (!filesfrom_host) |
a0a33ee5 | 882 | set_msg_fd_in(f_in); |
57dee64e | 883 | send_filter_list(f_out); |
860236bf | 884 | if (filesfrom_host) |
7c2a9e76 | 885 | filesfrom_fd = f_in; |
b9f592fb | 886 | |
e8a96e27 | 887 | if (write_batch && !am_server) |
b9f592fb | 888 | start_write_batch(f_out); |
a00628b3 | 889 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 890 | set_msg_fd_in(-1); |
d9c7edf6 | 891 | if (verbose > 3) |
9486289c | 892 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 893 | the_file_list = flist; |
e1b3d5c4 | 894 | |
f1e3656e | 895 | io_flush(NORMAL_FLUSH); |
9486289c | 896 | send_files(flist,f_out,f_in); |
f1e3656e | 897 | io_flush(FULL_FLUSH); |
33c4b445 | 898 | handle_stats(-1); |
4e0fcd85 | 899 | if (protocol_version >= 24) |
3485ae83 | 900 | read_final_goodbye(f_in, f_out); |
9486289c AT |
901 | if (pid != -1) { |
902 | if (verbose > 3) | |
08a740ff | 903 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 904 | io_flush(FULL_FLUSH); |
84e6d6fd | 905 | wait_process_with_flush(pid, &exit_code); |
9486289c | 906 | } |
33c4b445 | 907 | output_summary(); |
c87ae64a | 908 | io_flush(FULL_FLUSH); |
84e6d6fd | 909 | exit_cleanup(exit_code); |
9486289c | 910 | } |
f7632fc6 | 911 | |
bf26aa22 WD |
912 | if (need_messages_from_generator && !read_batch) |
913 | io_start_multiplex_out(); | |
914 | ||
48a1ff0d WD |
915 | if (argc == 0) |
916 | list_only |= 1; | |
d9c7edf6 | 917 | |
57dee64e | 918 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 919 | |
7c2a9e76 WD |
920 | if (filesfrom_fd >= 0) { |
921 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
922 | filesfrom_fd = -1; | |
923 | } | |
924 | ||
e8a96e27 | 925 | if (write_batch && !am_server) |
b9f592fb | 926 | start_write_batch(f_in); |
9486289c | 927 | flist = recv_file_list(f_in); |
a00628b3 | 928 | the_file_list = flist; |
d9c7edf6 | 929 | |
9d19f8a5 WD |
930 | if (flist && flist->count > 0) { |
931 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 932 | |
84e6d6fd | 933 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
934 | } else { |
935 | handle_stats(-1); | |
936 | output_summary(); | |
937 | } | |
d9c7edf6 | 938 | |
9486289c | 939 | if (pid != -1) { |
8d9dc9f9 | 940 | if (verbose > 3) |
08a740ff | 941 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 942 | io_flush(FULL_FLUSH); |
84e6d6fd | 943 | wait_process_with_flush(pid, &exit_code); |
9486289c | 944 | } |
d9c7edf6 | 945 | |
84e6d6fd | 946 | return MAX(exit_code, exit_code2); |
9486289c AT |
947 | } |
948 | ||
7169bb4a MP |
949 | static int copy_argv (char *argv[]) |
950 | { | |
951 | int i; | |
952 | ||
953 | for (i = 0; argv[i]; i++) { | |
954 | if (!(argv[i] = strdup(argv[i]))) { | |
955 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
956 | __FILE__, __LINE__); | |
957 | return RERR_MALLOC; | |
958 | } | |
959 | } | |
960 | ||
961 | return 0; | |
962 | } | |
963 | ||
964 | ||
c1a04ecb | 965 | /** |
0ba48136 MP |
966 | * Start a client for either type of remote connection. Work out |
967 | * whether the arguments request a remote shell or rsyncd connection, | |
968 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
969 | * |
970 | * Calls either start_socket_client (for sockets) or do_cmd and | |
971 | * client_run (for ssh). | |
c1a04ecb | 972 | **/ |
fc8a6b97 | 973 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
974 | { |
975 | char *p; | |
976 | char *shell_machine = NULL; | |
977 | char *shell_path = NULL; | |
978 | char *shell_user = NULL; | |
19b27a48 AT |
979 | int ret; |
980 | pid_t pid; | |
5d6bcd44 | 981 | int f_in,f_out; |
7169bb4a MP |
982 | int rc; |
983 | ||
984 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 985 | * command line. */ |
75aeac44 | 986 | if ((rc = copy_argv(argv))) |
7169bb4a | 987 | return rc; |
5d6bcd44 | 988 | |
d16c245f | 989 | if (!read_batch) { /* for read_batch, NO source is specified */ |
860236bf WD |
990 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
991 | if (shell_path) { /* source is remote */ | |
9425918d WD |
992 | char *dummy1; |
993 | int dummy2; | |
ee8e2b15 WD |
994 | if (--argc |
995 | && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { | |
9425918d WD |
996 | rprintf(FERROR, |
997 | "The source and destination cannot both be remote.\n"); | |
998 | exit_cleanup(RERR_SYNTAX); | |
999 | } | |
42ccb4c0 | 1000 | argv++; |
860236bf WD |
1001 | if (filesfrom_host && *filesfrom_host |
1002 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1003 | rprintf(FERROR, |
50b31539 | 1004 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1005 | exit_cleanup(RERR_SYNTAX); |
1006 | } | |
860236bf | 1007 | if (rsync_port) { |
d9c7edf6 | 1008 | if (!shell_cmd) { |
860236bf WD |
1009 | return start_socket_client(shell_machine, |
1010 | shell_path, | |
42ccb4c0 | 1011 | argc, argv); |
d9c7edf6 | 1012 | } |
d9c7edf6 | 1013 | daemon_over_rsh = 1; |
75aeac44 | 1014 | } |
3591c066 | 1015 | |
42ccb4c0 WD |
1016 | am_sender = 0; |
1017 | } else { /* source is local, check dest arg */ | |
1018 | am_sender = 1; | |
1019 | ||
ee8e2b15 WD |
1020 | if (argc > 1) |
1021 | p = argv[--argc]; | |
1022 | else { | |
1023 | p = "."; | |
1024 | list_only = 1; | |
d9c7edf6 | 1025 | } |
a125c82a | 1026 | |
ee8e2b15 | 1027 | shell_path = check_for_hostspec(p, &shell_machine, &rsync_port); |
860236bf WD |
1028 | if (shell_path && filesfrom_host && *filesfrom_host |
1029 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1030 | rprintf(FERROR, |
50b31539 | 1031 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1032 | exit_cleanup(RERR_SYNTAX); |
1033 | } | |
860236bf | 1034 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1035 | local_server = 1; |
860236bf | 1036 | if (filesfrom_host) { |
7c2a9e76 | 1037 | rprintf(FERROR, |
50b31539 | 1038 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1039 | exit_cleanup(RERR_SYNTAX); |
1040 | } | |
860236bf | 1041 | shell_machine = NULL; |
ee8e2b15 | 1042 | shell_path = p; |
860236bf | 1043 | } else if (rsync_port) { |
d9c7edf6 | 1044 | if (!shell_cmd) { |
860236bf WD |
1045 | return start_socket_client(shell_machine, |
1046 | shell_path, | |
42ccb4c0 | 1047 | argc, argv); |
d9c7edf6 | 1048 | } |
d9c7edf6 | 1049 | daemon_over_rsh = 1; |
a125c82a | 1050 | } |
5d6bcd44 | 1051 | } |
d16c245f | 1052 | } else { /* read_batch */ |
d9c7edf6 WD |
1053 | local_server = 1; |
1054 | shell_path = argv[argc-1]; | |
860236bf | 1055 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
1056 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1057 | exit_cleanup(RERR_SYNTAX); | |
1058 | } | |
6902ed17 MP |
1059 | } |
1060 | ||
5d6bcd44 | 1061 | if (shell_machine) { |
6fc048f4 | 1062 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1063 | if (p) { |
1064 | *p = 0; | |
1065 | shell_user = shell_machine; | |
1066 | shell_machine = p+1; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | if (verbose > 3) { | |
9486289c | 1071 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
45c49b52 WD |
1072 | shell_cmd ? shell_cmd : "", |
1073 | shell_machine ? shell_machine : "", | |
1074 | shell_user ? shell_user : "", | |
1075 | shell_path ? shell_path : ""); | |
5d6bcd44 | 1076 | } |
d9c7edf6 | 1077 | |
d16c245f | 1078 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1079 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1080 | usage(FERROR); |
65417579 | 1081 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1082 | } |
27e3e9c9 | 1083 | |
d16c245f | 1084 | /* ... or no dest at all */ |
48a1ff0d WD |
1085 | if (!am_sender && argc == 0) |
1086 | list_only |= 1; | |
d9c7edf6 | 1087 | |
75aeac44 WD |
1088 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1089 | &f_in,&f_out); | |
1090 | ||
1091 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1092 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1093 | if (daemon_over_rsh) { |
1094 | int tmpret; | |
1095 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1096 | f_in, f_out, argc); | |
1097 | if (tmpret < 0) | |
1098 | return tmpret; | |
1099 | } | |
1100 | ||
fc8a6b97 AT |
1101 | ret = client_run(f_in, f_out, pid, argc, argv); |
1102 | ||
1103 | fflush(stdout); | |
1104 | fflush(stderr); | |
1105 | ||
1106 | return ret; | |
5d6bcd44 AT |
1107 | } |
1108 | ||
366345fe | 1109 | |
067669da WD |
1110 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1111 | { | |
6bf32edb | 1112 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1113 | } |
1114 | ||
067669da WD |
1115 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1116 | { | |
33c4b445 WD |
1117 | if (!am_server) |
1118 | output_summary(); | |
40df65fd | 1119 | close_all(); |
33c4b445 WD |
1120 | if (log_got_error) |
1121 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1122 | _exit(0); |
1123 | } | |
1124 | ||
6d59ac19 | 1125 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1126 | { |
029c1713 | 1127 | #ifdef WNOHANG |
ee7118a8 DD |
1128 | int cnt, status; |
1129 | pid_t pid; | |
1130 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1131 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1132 | * out we're instead saving the child exit statuses for later use. |
1133 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1134 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1135 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1136 | /* save the child's exit status */ |
1137 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1138 | if (pid_stat_table[cnt].pid == 0) { | |
1139 | pid_stat_table[cnt].pid = pid; | |
1140 | pid_stat_table[cnt].status = status; | |
1141 | break; | |
1142 | } | |
1143 | } | |
ee7118a8 | 1144 | } |
029c1713 | 1145 | #endif |
8261af74 | 1146 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1147 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1148 | #endif |
19b27a48 AT |
1149 | } |
1150 | ||
c0531332 MP |
1151 | |
1152 | /** | |
1153 | * This routine catches signals and tries to send them to gdb. | |
1154 | * | |
1155 | * Because it's called from inside a signal handler it ought not to | |
1156 | * use too many library routines. | |
1157 | * | |
1158 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1159 | * debugging without easy access to X. Perhaps use an environment | |
1160 | * variable, or just call a script? | |
1161 | * | |
1162 | * @todo The /proc/ magic probably only works on Linux (and | |
1163 | * Solaris?) Can we be more portable? | |
1164 | **/ | |
1165 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1166 | const char *get_panic_action(void) |
1167 | { | |
1168 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1169 | ||
1170 | if (cmd_fmt) | |
1171 | return cmd_fmt; | |
1172 | else | |
1173 | return "xterm -display :0 -T Panic -n Panic " | |
1174 | "-e gdb /proc/%d/exe %d"; | |
1175 | } | |
1176 | ||
1177 | ||
9fb3f7a9 MP |
1178 | /** |
1179 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1180 | * | |
1181 | * This signal handler is only installed if we were configured with | |
1182 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1183 | * should just look at the environment variable, but I'm a bit leery | |
1184 | * of a signal sending us into a busy loop. | |
1185 | **/ | |
067669da | 1186 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1187 | { |
1188 | char cmd_buf[300]; | |
1189 | int ret; | |
4fdc39dd MP |
1190 | |
1191 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1192 | getpid(), getpid()); |
1193 | ||
1194 | /* Unless we failed to execute gdb, we allow the process to | |
1195 | * continue. I'm not sure if that's right. */ | |
1196 | ret = system(cmd_buf); | |
1197 | if (ret) | |
1198 | _exit(ret); | |
1199 | } | |
1200 | #endif | |
1201 | ||
1202 | ||
5d6bcd44 | 1203 | int main(int argc,char *argv[]) |
d9c7edf6 | 1204 | { |
ff81e809 | 1205 | int ret; |
66a9dc96 WD |
1206 | int orig_argc = argc; |
1207 | char **orig_argv = argv; | |
8261af74 WD |
1208 | #ifdef HAVE_SIGACTION |
1209 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1210 | sigset_t sigmask; |
5d6bcd44 | 1211 | |
60ee01f5 | 1212 | sigemptyset(&sigmask); |
8261af74 | 1213 | # endif |
60ee01f5 WD |
1214 | sigact.sa_flags = SA_NOCLDSTOP; |
1215 | #endif | |
1216 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1217 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1218 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1219 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1220 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1221 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1222 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1223 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1224 | #endif | |
5d6bcd44 | 1225 | |
7a6421fa | 1226 | starttime = time(NULL); |
6fe05820 | 1227 | am_root = (MY_UID() == 0); |
c627d613 | 1228 | |
a800434a AT |
1229 | memset(&stats, 0, sizeof(stats)); |
1230 | ||
df5e03da AT |
1231 | if (argc < 2) { |
1232 | usage(FERROR); | |
65417579 | 1233 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1234 | } |
1235 | ||
7a6421fa | 1236 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1237 | * carried across */ |
05278935 | 1238 | orig_umask = umask(0); |
5d6bcd44 | 1239 | |
eb598fac WD |
1240 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1241 | setlocale(LC_CTYPE, ""); | |
1242 | #endif | |
1243 | ||
50135767 | 1244 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1245 | /* FIXME: We ought to call the same error-handling |
1246 | * code here, rather than relying on getopt. */ | |
50135767 | 1247 | option_error(); |
65417579 | 1248 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1249 | } |
5d6bcd44 | 1250 | |
60ee01f5 WD |
1251 | SIGACTMASK(SIGINT, sig_int); |
1252 | SIGACTMASK(SIGHUP, sig_int); | |
1253 | SIGACTMASK(SIGTERM, sig_int); | |
1254 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1255 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1256 | #endif | |
6b83141d | 1257 | |
34758d5c MP |
1258 | /* Ignore SIGPIPE; we consistently check error codes and will |
1259 | * see the EPIPE. */ | |
60ee01f5 | 1260 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1261 | #ifdef SIGXFSZ |
1262 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1263 | #endif | |
34758d5c | 1264 | |
c226b7c2 | 1265 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1266 | * (implemented by forking "pwd" and reading its output) doesn't |
1267 | * work when there are other child processes. Also, on all systems | |
1268 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1269 | push_dir(NULL); |
c226b7c2 | 1270 | |
44e9e221 WD |
1271 | init_flist(); |
1272 | ||
e8a96e27 | 1273 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1274 | if (write_batch) |
66a9dc96 | 1275 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1276 | |
dbbab0c4 WD |
1277 | if (read_batch && strcmp(batch_name, "-") == 0) |
1278 | batch_fd = STDIN_FILENO; | |
1279 | else { | |
1280 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1281 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1282 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1283 | } |
b9f592fb WD |
1284 | if (batch_fd < 0) { |
1285 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1286 | full_fname(batch_name)); |
b9f592fb WD |
1287 | exit_cleanup(RERR_FILEIO); |
1288 | } | |
9459290a WD |
1289 | if (read_batch) |
1290 | read_stream_flags(batch_fd); | |
6902ed17 | 1291 | } |
e8a96e27 WD |
1292 | if (write_batch < 0) |
1293 | dry_run = 1; | |
6902ed17 | 1294 | |
75aeac44 | 1295 | if (am_daemon && !am_server) |
7a6421fa | 1296 | return daemon_main(); |
f0fca04e | 1297 | |
08ac228f AT |
1298 | if (argc < 1) { |
1299 | usage(FERROR); | |
65417579 | 1300 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1301 | } |
1302 | ||
7a6421fa | 1303 | if (am_server) { |
f0359dd0 AT |
1304 | set_nonblocking(STDIN_FILENO); |
1305 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1306 | if (am_daemon) |
1307 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1308 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1309 | } | |
c627d613 | 1310 | |
ff81e809 | 1311 | ret = start_client(argc, argv); |
d9c7edf6 | 1312 | if (ret == -1) |
9098bbf3 | 1313 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1314 | else |
9098bbf3 MP |
1315 | exit_cleanup(ret); |
1316 | ||
0f5a04e3 | 1317 | return ret; |
c627d613 | 1318 | } |