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> | |
b3bf9b9d | 7 | * Copyright (C) 2003-2009 Wayne Davison |
0f78b815 WD |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
8e41b68e WD |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 3 of the License, or | |
12 | * (at your option) any later version. | |
0f78b815 WD |
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 | 19 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 20 | * with this program; if not, visit the http://fsf.org website. |
0f78b815 | 21 | */ |
c627d613 AT |
22 | |
23 | #include "rsync.h" | |
5dd14f0c | 24 | #include "inums.h" |
a72ba0cf | 25 | #include "io.h" |
d9401514 WD |
26 | #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H |
27 | #include <locale.h> | |
28 | #endif | |
c627d613 | 29 | |
50839b4b WD |
30 | extern int dry_run; |
31 | extern int list_only; | |
a0f1ed55 | 32 | extern int io_timeout; |
32eda096 | 33 | extern int am_root; |
d9c7edf6 WD |
34 | extern int am_server; |
35 | extern int am_sender; | |
36 | extern int am_daemon; | |
3ea6e0e7 | 37 | extern int inc_recurse; |
32eda096 | 38 | extern int blocking_io; |
886df221 | 39 | extern int always_checksum; |
47c11975 | 40 | extern int remove_source_files; |
951e826b | 41 | extern int output_needs_newline; |
bf26aa22 | 42 | extern int need_messages_from_generator; |
051182cb | 43 | extern int kluge_around_eof; |
3f0211b6 | 44 | extern int got_xfer_error; |
eabc85ef | 45 | extern int msgs2stderr; |
32eda096 | 46 | extern int module_id; |
d7205694 | 47 | extern int read_only; |
bb6721dc | 48 | extern int copy_links; |
a695b379 | 49 | extern int copy_dirlinks; |
01103e18 | 50 | extern int copy_unsafe_links; |
83926d3c | 51 | extern int keep_dirlinks; |
32eda096 | 52 | extern int preserve_hard_links; |
d04e9c51 | 53 | extern int protocol_version; |
f3d6d480 | 54 | extern int file_total; |
32eda096 | 55 | extern int recurse; |
26bbb6aa | 56 | extern int xfer_dirs; |
f7e5068d | 57 | extern int protect_args; |
32eda096 | 58 | extern int relative_paths; |
7c58c991 | 59 | extern int sanitize_paths; |
c2a2147a | 60 | extern int curr_dir_depth; |
615a5415 | 61 | extern int curr_dir_len; |
7c58c991 | 62 | extern int module_id; |
32eda096 | 63 | extern int rsync_port; |
b1df18d7 | 64 | extern int whole_file; |
32eda096 WD |
65 | extern int read_batch; |
66 | extern int write_batch; | |
b9f592fb | 67 | extern int batch_fd; |
41000dff WD |
68 | extern int sock_f_in; |
69 | extern int sock_f_out; | |
32eda096 | 70 | extern int filesfrom_fd; |
ba22c9e2 | 71 | extern int connect_timeout; |
20caffd2 | 72 | extern int send_msgs_to_gen; |
32eda096 | 73 | extern pid_t cleanup_child_pid; |
20caffd2 | 74 | extern size_t bwlimit_writemax; |
a1018691 | 75 | extern unsigned int module_dirlen; |
92d02148 | 76 | extern BOOL we_send_keepalive_messages; |
2885270b | 77 | extern BOOL flist_receiving_enabled; |
0c2e8f93 | 78 | extern BOOL shutting_down; |
50839b4b | 79 | extern struct stats stats; |
886df221 WD |
80 | extern char *stdout_format; |
81 | extern char *logfile_format; | |
860236bf | 82 | extern char *filesfrom_host; |
c2c8db91 | 83 | extern char *partial_dir; |
ce27f36d | 84 | extern char *dest_option; |
32eda096 WD |
85 | extern char *rsync_path; |
86 | extern char *shell_cmd; | |
9b3318b0 | 87 | extern char *batch_name; |
a39da29a | 88 | extern char *password_file; |
3696674b | 89 | extern char *backup_dir; |
615a5415 | 90 | extern char curr_dir[MAXPATHLEN]; |
3696674b | 91 | extern char backup_dir_buf[MAXPATHLEN]; |
b791d680 | 92 | extern char *basis_dir[MAX_BASIS_DIRS+1]; |
da131912 | 93 | extern struct file_list *first_flist; |
7b6c5c77 | 94 | extern filter_rule_list daemon_filter_list; |
57dee64e | 95 | |
19284e2e | 96 | uid_t our_uid; |
3b83a220 | 97 | gid_t our_gid; |
82b2a31a WD |
98 | int am_receiver = 0; /* Only set to 1 after the receiver/generator fork. */ |
99 | int am_generator = 0; /* Only set to 1 after the receiver/generator fork. */ | |
57dee64e | 100 | int local_server = 0; |
e208631a | 101 | int daemon_over_rsh = 0; |
05278935 | 102 | mode_t orig_umask = 0; |
f3d6d480 | 103 | int batch_gen_fd = -1; |
886df221 | 104 | int sender_keeps_checksum = 0; |
c627d613 | 105 | |
91c5833b WD |
106 | /* There's probably never more than at most 2 outstanding child processes, |
107 | * but set it higher, just in case. */ | |
84e6d6fd | 108 | #define MAXCHILDPROCS 7 |
ee7118a8 | 109 | |
8261af74 WD |
110 | #ifdef HAVE_SIGACTION |
111 | # ifdef HAVE_SIGPROCMASK | |
112 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
113 | # else | |
114 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
115 | # endif | |
60ee01f5 WD |
116 | static struct sigaction sigact; |
117 | #endif | |
118 | ||
ee7118a8 DD |
119 | struct pid_status { |
120 | pid_t pid; | |
84e6d6fd | 121 | int status; |
ee7118a8 DD |
122 | } pid_stat_table[MAXCHILDPROCS]; |
123 | ||
33c4b445 WD |
124 | static time_t starttime, endtime; |
125 | static int64 total_read, total_written; | |
126 | ||
e5a2b854 | 127 | static void show_malloc_stats(void); |
82980a23 | 128 | |
97d8e709 | 129 | /* Works like waitpid(), but if we already harvested the child pid in our |
6d59ac19 | 130 | * remember_children(), we succeed instead of returning an error. */ |
97d8e709 | 131 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) |
82980a23 | 132 | { |
d365e229 WD |
133 | pid_t waited_pid; |
134 | ||
135 | do { | |
136 | waited_pid = waitpid(pid, status_ptr, flags); | |
137 | } while (waited_pid == -1 && errno == EINTR); | |
d9c7edf6 | 138 | |
6fb812f7 | 139 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 | 140 | /* Status of requested child no longer available: check to |
6d59ac19 | 141 | * see if it was processed by remember_children(). */ |
97d8e709 | 142 | int cnt; |
84e6d6fd | 143 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 144 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 145 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 146 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 147 | return pid; |
ee7118a8 DD |
148 | } |
149 | } | |
150 | } | |
151 | ||
97d8e709 WD |
152 | return waited_pid; |
153 | } | |
154 | ||
155 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 156 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
157 | { |
158 | pid_t waited_pid; | |
159 | int status; | |
160 | ||
161 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
162 | msleep(20); | |
163 | io_flush(FULL_FLUSH); | |
164 | } | |
165 | ||
d9c7edf6 WD |
166 | /* TODO: If the child exited on a signal, then log an |
167 | * appropriate error message. Perhaps we should also accept a | |
168 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 169 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
170 | if (waited_pid < 0) { |
171 | rsyserr(FERROR, errno, "waitpid"); | |
172 | *exit_code_ptr = RERR_WAITCHILD; | |
173 | } else if (!WIFEXITED(status)) { | |
40e6752f | 174 | #ifdef WCOREDUMP |
dbefb6b4 | 175 | if (WCOREDUMP(status)) |
84e6d6fd | 176 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
177 | else |
178 | #endif | |
179 | if (WIFSIGNALED(status)) | |
84e6d6fd | 180 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 181 | else |
84e6d6fd | 182 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 183 | } else |
84e6d6fd | 184 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
185 | } |
186 | ||
e366e530 WD |
187 | void write_del_stats(int f) |
188 | { | |
bc40a305 WD |
189 | if (read_batch) |
190 | write_int(f, NDX_DEL_STATS); | |
191 | else | |
20caffd2 | 192 | write_ndx(f, NDX_DEL_STATS); |
e366e530 WD |
193 | write_varint(f, stats.deleted_files - stats.deleted_dirs |
194 | - stats.deleted_symlinks - stats.deleted_devices | |
195 | - stats.deleted_specials); | |
196 | write_varint(f, stats.deleted_dirs); | |
197 | write_varint(f, stats.deleted_symlinks); | |
198 | write_varint(f, stats.deleted_devices); | |
199 | write_varint(f, stats.deleted_specials); | |
200 | } | |
201 | ||
202 | void read_del_stats(int f) | |
203 | { | |
e366e530 WD |
204 | stats.deleted_files = read_varint(f); |
205 | stats.deleted_files += stats.deleted_dirs = read_varint(f); | |
206 | stats.deleted_files += stats.deleted_symlinks = read_varint(f); | |
207 | stats.deleted_files += stats.deleted_devices = read_varint(f); | |
208 | stats.deleted_files += stats.deleted_specials = read_varint(f); | |
209 | } | |
210 | ||
b9f592fb WD |
211 | /* This function gets called from all 3 processes. We want the client side |
212 | * to actually output the text, but the sender is the only process that has | |
213 | * all the stats we need. So, if we're a client sender, we do the report. | |
214 | * If we're a server sender, we write the stats on the supplied fd. If | |
215 | * we're the client receiver we read the stats from the supplied fd and do | |
216 | * the report. All processes might also generate a set of debug stats, if | |
217 | * the verbose level is high enough (this is the only thing that the | |
218 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 219 | static void handle_stats(int f) |
c627d613 | 220 | { |
33c4b445 WD |
221 | endtime = time(NULL); |
222 | ||
b9f592fb | 223 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
224 | total_read = stats.total_read; |
225 | total_written = stats.total_written; | |
7a6421fa | 226 | |
951e826b | 227 | if (INFO_GTE(STATS, 3)) { |
5c15e29f | 228 | /* These come out from every process */ |
7bb7058e | 229 | show_malloc_stats(); |
86943126 | 230 | show_flist_stats(); |
5c15e29f MP |
231 | } |
232 | ||
e5fbaa71 S |
233 | if (am_generator) |
234 | return; | |
235 | ||
248fbb8c | 236 | if (am_daemon) { |
83926d3c WD |
237 | if (f == -1 || !am_sender) |
238 | return; | |
248fbb8c AT |
239 | } |
240 | ||
e19452a9 | 241 | if (am_server) { |
3e491682 | 242 | if (am_sender) { |
a72ba0cf WD |
243 | write_varlong30(f, total_read, 3); |
244 | write_varlong30(f, total_written, 3); | |
245 | write_varlong30(f, stats.total_size, 3); | |
f0f7e760 | 246 | if (protocol_version >= 29) { |
a72ba0cf WD |
247 | write_varlong30(f, stats.flist_buildtime, 3); |
248 | write_varlong30(f, stats.flist_xfertime, 3); | |
f0f7e760 | 249 | } |
e19452a9 | 250 | } |
7a6421fa AT |
251 | return; |
252 | } | |
e19452a9 DD |
253 | |
254 | /* this is the client */ | |
d9c7edf6 | 255 | |
9d19f8a5 | 256 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
0f78b815 | 257 | ; |
9d19f8a5 | 258 | else if (!am_sender) { |
58c5c245 WD |
259 | /* Read the first two in opposite order because the meaning of |
260 | * read/write swaps when switching from sender to receiver. */ | |
a72ba0cf WD |
261 | total_written = read_varlong30(f, 3); |
262 | total_read = read_varlong30(f, 3); | |
263 | stats.total_size = read_varlong30(f, 3); | |
f0f7e760 | 264 | if (protocol_version >= 29) { |
a72ba0cf WD |
265 | stats.flist_buildtime = read_varlong30(f, 3); |
266 | stats.flist_xfertime = read_varlong30(f, 3); | |
f0f7e760 | 267 | } |
e4676bb5 | 268 | } else if (write_batch) { |
b9f592fb WD |
269 | /* The --read-batch process is going to be a client |
270 | * receiver, so we need to give it the stats. */ | |
a72ba0cf WD |
271 | write_varlong30(batch_fd, total_read, 3); |
272 | write_varlong30(batch_fd, total_written, 3); | |
273 | write_varlong30(batch_fd, stats.total_size, 3); | |
f0f7e760 | 274 | if (protocol_version >= 29) { |
a72ba0cf WD |
275 | write_varlong30(batch_fd, stats.flist_buildtime, 3); |
276 | write_varlong30(batch_fd, stats.flist_xfertime, 3); | |
f0f7e760 | 277 | } |
e366e530 WD |
278 | } |
279 | } | |
280 | ||
281 | static void output_itemized_counts(const char *prefix, int *counts) | |
282 | { | |
283 | static char *labels[] = { "reg", "dir", "link", "dev", "special" }; | |
284 | char buf[1024], *pre = " ("; | |
285 | int j, len = 0; | |
286 | int total = counts[0]; | |
287 | if (total) { | |
288 | counts[0] -= counts[1] + counts[2] + counts[3] + counts[4]; | |
289 | for (j = 0; j < 5; j++) { | |
290 | if (counts[j]) { | |
291 | len += snprintf(buf+len, sizeof buf - len - 2, | |
292 | "%s%s: %s", | |
293 | pre, labels[j], comma_num(counts[j])); | |
294 | pre = ", "; | |
295 | } | |
296 | } | |
297 | buf[len++] = ')'; | |
a800434a | 298 | } |
e366e530 WD |
299 | buf[len] = '\0'; |
300 | rprintf(FINFO, "%s: %s%s\n", prefix, comma_num(total), buf); | |
e4676bb5 | 301 | } |
a800434a | 302 | |
e4676bb5 WD |
303 | static void output_summary(void) |
304 | { | |
951e826b | 305 | if (INFO_GTE(STATS, 2)) { |
b64ee91a | 306 | rprintf(FCLIENT, "\n"); |
e366e530 WD |
307 | output_itemized_counts("Number of files", &stats.num_files); |
308 | if (protocol_version >= 29) | |
309 | output_itemized_counts("Number of created files", &stats.created_files); | |
310 | if (protocol_version >= 31) | |
311 | output_itemized_counts("Number of deleted files", &stats.deleted_files); | |
312 | rprintf(FINFO,"Number of regular files transferred: %s\n", | |
313 | comma_num(stats.xferred_files)); | |
60613dc8 | 314 | rprintf(FINFO,"Total file size: %s bytes\n", |
adc2476f | 315 | human_num(stats.total_size)); |
60613dc8 | 316 | rprintf(FINFO,"Total transferred file size: %s bytes\n", |
adc2476f | 317 | human_num(stats.total_transferred_size)); |
60613dc8 | 318 | rprintf(FINFO,"Literal data: %s bytes\n", |
adc2476f | 319 | human_num(stats.literal_data)); |
60613dc8 | 320 | rprintf(FINFO,"Matched data: %s bytes\n", |
adc2476f | 321 | human_num(stats.matched_data)); |
eb0144d7 | 322 | rprintf(FINFO,"File list size: %s\n", |
adc2476f | 323 | human_num(stats.flist_size)); |
f0f7e760 WD |
324 | if (stats.flist_buildtime) { |
325 | rprintf(FINFO, | |
adc2476f WD |
326 | "File list generation time: %s seconds\n", |
327 | comma_dnum((double)stats.flist_buildtime / 1000, 3)); | |
f0f7e760 | 328 | rprintf(FINFO, |
adc2476f WD |
329 | "File list transfer time: %s seconds\n", |
330 | comma_dnum((double)stats.flist_xfertime / 1000, 3)); | |
f0f7e760 | 331 | } |
60613dc8 | 332 | rprintf(FINFO,"Total bytes sent: %s\n", |
adc2476f | 333 | human_num(total_written)); |
60613dc8 | 334 | rprintf(FINFO,"Total bytes received: %s\n", |
adc2476f | 335 | human_num(total_read)); |
7a6421fa | 336 | } |
d9c7edf6 | 337 | |
951e826b | 338 | if (INFO_GTE(STATS, 1)) { |
b64ee91a | 339 | rprintf(FCLIENT, "\n"); |
b9f592fb | 340 | rprintf(FINFO, |
b64ee91a | 341 | "sent %s bytes received %s bytes %s bytes/sec\n", |
adc2476f | 342 | human_num(total_written), human_num(total_read), |
60613dc8 | 343 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); |
adc2476f WD |
344 | rprintf(FINFO, "total size is %s speedup is %s%s\n", |
345 | human_num(stats.total_size), | |
346 | comma_dnum((double)stats.total_size / (total_written+total_read), 2), | |
641dc0c5 | 347 | write_batch < 0 ? " (BATCH ONLY)" : dry_run ? " (DRY RUN)" : ""); |
e19452a9 | 348 | } |
fc8a6b97 AT |
349 | |
350 | fflush(stdout); | |
351 | fflush(stderr); | |
c627d613 AT |
352 | } |
353 | ||
354 | ||
e5a2b854 MP |
355 | /** |
356 | * If our C library can get malloc statistics, then show them to FINFO | |
357 | **/ | |
358 | static void show_malloc_stats(void) | |
359 | { | |
4f5b0756 | 360 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
361 | struct mallinfo mi; |
362 | ||
363 | mi = mallinfo(); | |
364 | ||
b64ee91a WD |
365 | rprintf(FCLIENT, "\n"); |
366 | rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", | |
f846a9bf WD |
367 | getpid(), am_server ? "server " : "", |
368 | am_daemon ? "daemon " : "", who_am_i()); | |
369 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
370 | (long)mi.arena); | |
371 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
372 | (long)mi.ordblks); | |
373 | rprintf(FINFO, " smblks: %10ld\n", | |
374 | (long)mi.smblks); | |
375 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
376 | (long)mi.hblks); | |
377 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
378 | (long)mi.hblkhd); | |
379 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
380 | (long)mi.arena + mi.hblkhd); | |
381 | rprintf(FINFO, " usmblks: %10ld\n", | |
382 | (long)mi.usmblks); | |
383 | rprintf(FINFO, " fsmblks: %10ld\n", | |
384 | (long)mi.fsmblks); | |
385 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
386 | (long)mi.uordblks); | |
387 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
388 | (long)mi.fordblks); | |
389 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
390 | (long)mi.keepcost); | |
e5a2b854 MP |
391 | #endif /* HAVE_MALLINFO */ |
392 | } | |
393 | ||
394 | ||
0882faa2 | 395 | /* Start the remote shell. cmd may be NULL to use the default. */ |
f7e5068d WD |
396 | static pid_t do_cmd(char *cmd, char *machine, char *user, char **remote_argv, int remote_argc, |
397 | int *f_in_p, int *f_out_p) | |
c627d613 | 398 | { |
6c2e5b56 | 399 | int i, argc = 0; |
f8e1fa62 | 400 | char *args[MAX_ARGS], *need_to_free = NULL; |
53936ef9 | 401 | pid_t pid; |
bb4aa89c | 402 | int dash_l_set = 0; |
366345fe | 403 | |
088aac85 | 404 | if (!read_batch && !local_server) { |
82f0c63e | 405 | char *t, *f, in_quote = '\0'; |
9af87151 | 406 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 407 | if (!cmd) |
9af87151 | 408 | cmd = rsh_env; |
366345fe AT |
409 | if (!cmd) |
410 | cmd = RSYNC_RSH; | |
f8e1fa62 | 411 | cmd = need_to_free = strdup(cmd); |
d9c7edf6 | 412 | if (!cmd) |
366345fe AT |
413 | goto oom; |
414 | ||
82f0c63e WD |
415 | for (t = f = cmd; *f; f++) { |
416 | if (*f == ' ') | |
417 | continue; | |
e7a392c7 | 418 | /* Comparison leaves rooms for server_options(). */ |
f7e5068d WD |
419 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) |
420 | goto arg_overflow; | |
82f0c63e WD |
421 | args[argc++] = t; |
422 | while (*f != ' ' || in_quote) { | |
423 | if (!*f) { | |
424 | if (in_quote) { | |
425 | rprintf(FERROR, | |
426 | "Missing trailing-%c in remote-shell command.\n", | |
427 | in_quote); | |
428 | exit_cleanup(RERR_SYNTAX); | |
429 | } | |
430 | f--; | |
431 | break; | |
432 | } | |
433 | if (*f == '\'' || *f == '"') { | |
434 | if (!in_quote) { | |
435 | in_quote = *f++; | |
436 | continue; | |
437 | } | |
438 | if (*f == in_quote && *++f != in_quote) { | |
439 | in_quote = '\0'; | |
440 | continue; | |
441 | } | |
442 | } | |
443 | *t++ = *f++; | |
444 | } | |
445 | *t++ = '\0'; | |
887e553f | 446 | } |
c627d613 | 447 | |
d9c7edf6 | 448 | /* check to see if we've already been given '-l user' in |
9af87151 | 449 | * the remote-shell command */ |
bb4aa89c WD |
450 | for (i = 0; i < argc-1; i++) { |
451 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
452 | dash_l_set = 1; | |
453 | } | |
454 | ||
4f5b0756 | 455 | #ifdef HAVE_REMSH |
366345fe AT |
456 | /* remsh (on HPUX) takes the arguments the other way around */ |
457 | args[argc++] = machine; | |
bb4aa89c | 458 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
459 | args[argc++] = "-l"; |
460 | args[argc++] = user; | |
461 | } | |
7b8356d0 | 462 | #else |
bb4aa89c | 463 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
464 | args[argc++] = "-l"; |
465 | args[argc++] = user; | |
466 | } | |
467 | args[argc++] = machine; | |
7b8356d0 | 468 | #endif |
c627d613 | 469 | |
366345fe | 470 | args[argc++] = rsync_path; |
c627d613 | 471 | |
9af87151 | 472 | if (blocking_io < 0) { |
90e22f4b WD |
473 | char *cp; |
474 | if ((cp = strrchr(cmd, '/')) != NULL) | |
475 | cp++; | |
476 | else | |
477 | cp = cmd; | |
478 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
479 | blocking_io = 1; | |
66b71163 | 480 | } |
e384bfbd | 481 | |
93689aa5 | 482 | server_options(args,&argc); |
e7a392c7 | 483 | |
f7e5068d WD |
484 | if (argc >= MAX_ARGS - 2) |
485 | goto arg_overflow; | |
366345fe | 486 | } |
c627d613 | 487 | |
366345fe | 488 | args[argc++] = "."; |
76076c4b | 489 | |
f7e5068d WD |
490 | if (!daemon_over_rsh) { |
491 | while (remote_argc > 0) { | |
492 | if (argc >= MAX_ARGS - 1) { | |
493 | arg_overflow: | |
494 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
495 | exit_cleanup(RERR_SYNTAX); | |
496 | } | |
497 | args[argc++] = *remote_argv++; | |
498 | remote_argc--; | |
499 | } | |
500 | } | |
c627d613 | 501 | |
366345fe | 502 | args[argc] = NULL; |
c627d613 | 503 | |
951e826b | 504 | if (DEBUG_GTE(CMD, 2)) { |
e7a392c7 | 505 | for (i = 0; i < argc; i++) |
b64ee91a WD |
506 | rprintf(FCLIENT, "cmd[%d]=%s ", i, args[i]); |
507 | rprintf(FCLIENT, "\n"); | |
366345fe AT |
508 | } |
509 | ||
c0d8e84c WD |
510 | if (read_batch) { |
511 | int from_gen_pipe[2]; | |
ea4e8cf8 | 512 | set_allow_inc_recurse(); |
c0d8e84c WD |
513 | if (fd_pair(from_gen_pipe) < 0) { |
514 | rsyserr(FERROR, errno, "pipe"); | |
515 | exit_cleanup(RERR_IPC); | |
516 | } | |
517 | batch_gen_fd = from_gen_pipe[0]; | |
f7e5068d WD |
518 | *f_out_p = from_gen_pipe[1]; |
519 | *f_in_p = batch_fd; | |
53936ef9 | 520 | pid = (pid_t)-1; /* no child pid */ |
44c4492a | 521 | #ifdef ICONV_CONST |
b61665d5 | 522 | setup_iconv(); |
44c4492a | 523 | #endif |
c0d8e84c | 524 | } else if (local_server) { |
b1df18d7 WD |
525 | /* If the user didn't request --[no-]whole-file, force |
526 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 527 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 528 | whole_file = 1; |
ea4e8cf8 | 529 | set_allow_inc_recurse(); |
53936ef9 | 530 | pid = local_child(argc, args, f_in_p, f_out_p, child_main); |
44c4492a | 531 | #ifdef ICONV_CONST |
b61665d5 | 532 | setup_iconv(); |
44c4492a | 533 | #endif |
f7e5068d | 534 | } else { |
53936ef9 | 535 | pid = piped_child(args, f_in_p, f_out_p); |
44c4492a | 536 | #ifdef ICONV_CONST |
b61665d5 | 537 | setup_iconv(); |
44c4492a | 538 | #endif |
d8e8ef32 | 539 | if (protect_args && !daemon_over_rsh) |
53936ef9 | 540 | send_protected_args(*f_out_p, args); |
f7e5068d | 541 | } |
c627d613 | 542 | |
f8e1fa62 WD |
543 | if (need_to_free) |
544 | free(need_to_free); | |
545 | ||
53936ef9 | 546 | return pid; |
c627d613 | 547 | |
acee11fc | 548 | oom: |
366345fe AT |
549 | out_of_memory("do_cmd"); |
550 | return 0; /* not reached */ | |
c627d613 AT |
551 | } |
552 | ||
eb598fac WD |
553 | /* The receiving side operates in one of two modes: |
554 | * | |
cc8c5057 WD |
555 | * 1. it receives any number of files into a destination directory, |
556 | * placing them according to their names in the file-list. | |
eb598fac WD |
557 | * |
558 | * 2. it receives a single file and saves it using the name in the | |
559 | * destination path instead of its file-list name. This requires a | |
560 | * "local name" for writing out the destination file. | |
561 | * | |
a7d461fc WD |
562 | * So, our task is to figure out what mode/local-name we need. |
563 | * For mode 1, we change into the destination directory and return NULL. | |
564 | * For mode 2, we change into the directory containing the destination | |
565 | * file (if we aren't already there) and return the local-name. */ | |
eb598fac | 566 | static char *get_local_name(struct file_list *flist, char *dest_path) |
c627d613 | 567 | { |
7a6421fa | 568 | STRUCT_STAT st; |
a7d461fc | 569 | int statret; |
eb598fac | 570 | char *cp; |
c627d613 | 571 | |
951e826b | 572 | if (DEBUG_GTE(RECV, 1)) { |
eb598fac | 573 | rprintf(FINFO, "get_local_name count=%d %s\n", |
f3d6d480 | 574 | file_total, NS(dest_path)); |
eb598fac | 575 | } |
1f0610ef | 576 | |
ee8e2b15 | 577 | if (!dest_path || list_only) |
1f0610ef | 578 | return NULL; |
c95da96a | 579 | |
311676ed WD |
580 | if (daemon_filter_list.head) { |
581 | char *slash = strrchr(dest_path, '/'); | |
164cb66a | 582 | if (slash && (slash[1] == '\0' || (slash[1] == '.' && slash[2] == '\0'))) |
311676ed WD |
583 | *slash = '\0'; |
584 | else | |
585 | slash = NULL; | |
164cb66a WD |
586 | if ((*dest_path != '.' || dest_path[1] != '\0') |
587 | && (check_filter(&daemon_filter_list, FLOG, dest_path, 0) < 0 | |
588 | || check_filter(&daemon_filter_list, FLOG, dest_path, 1) < 0)) { | |
311676ed WD |
589 | rprintf(FERROR, "skipping daemon-excluded destination \"%s\"\n", |
590 | dest_path); | |
591 | exit_cleanup(RERR_FILESELECT); | |
592 | } | |
593 | if (slash) | |
594 | *slash = '/'; | |
99c3e591 WD |
595 | } |
596 | ||
a7d461fc | 597 | /* See what currently exists at the destination. */ |
1a7f3d99 | 598 | if ((statret = do_stat(dest_path, &st)) == 0) { |
a7d461fc | 599 | /* If the destination is a dir, enter it and use mode 1. */ |
1ff5450d | 600 | if (S_ISDIR(st.st_mode)) { |
29a89172 WD |
601 | if (!change_dir(dest_path, CD_NORMAL)) { |
602 | rsyserr(FERROR, errno, "change_dir#1 %s failed", | |
eb598fac | 603 | full_fname(dest_path)); |
65417579 | 604 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
605 | } |
606 | return NULL; | |
607 | } | |
f3d6d480 | 608 | if (file_total > 1) { |
eb598fac WD |
609 | rprintf(FERROR, |
610 | "ERROR: destination must be a directory when" | |
611 | " copying more than 1 file\n"); | |
65417579 | 612 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 613 | } |
f3d6d480 | 614 | if (file_total == 1 && S_ISDIR(flist->files[0]->mode)) { |
44c26bf2 WD |
615 | rprintf(FERROR, |
616 | "ERROR: cannot overwrite non-directory" | |
617 | " with a directory\n"); | |
618 | exit_cleanup(RERR_FILESELECT); | |
619 | } | |
cc8c5057 | 620 | } else if (errno != ENOENT) { |
a7d461fc WD |
621 | /* If we don't know what's at the destination, fail. */ |
622 | rsyserr(FERROR, errno, "ERROR: cannot stat destination %s", | |
cc8c5057 WD |
623 | full_fname(dest_path)); |
624 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
625 | } |
626 | ||
eb598fac WD |
627 | cp = strrchr(dest_path, '/'); |
628 | ||
a7d461fc WD |
629 | /* If we need a destination directory because the transfer is not |
630 | * of a single non-directory or the user has requested one via a | |
631 | * destination path ending in a slash, create one and use mode 1. */ | |
f3d6d480 | 632 | if (file_total > 1 || (cp && !cp[1])) { |
eb598fac WD |
633 | /* Lop off the final slash (if any). */ |
634 | if (cp && !cp[1]) | |
635 | *cp = '\0'; | |
636 | ||
a7d461fc WD |
637 | if (statret == 0) { |
638 | rprintf(FERROR, | |
639 | "ERROR: destination path is not a directory\n"); | |
640 | exit_cleanup(RERR_SYNTAX); | |
641 | } | |
642 | ||
05278935 | 643 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
644 | rsyserr(FERROR, errno, "mkdir %s failed", |
645 | full_fname(dest_path)); | |
646 | exit_cleanup(RERR_FILEIO); | |
647 | } | |
1ff5450d | 648 | |
7341ee2d WD |
649 | if (flist->high >= flist->low |
650 | && strcmp(flist->files[flist->low]->basename, ".") == 0) | |
288b12ee | 651 | flist->files[0]->flags |= FLAG_DIR_CREATED; |
2a94207a | 652 | |
951e826b | 653 | if (INFO_GTE(NAME, 1)) |
eb598fac WD |
654 | rprintf(FINFO, "created directory %s\n", dest_path); |
655 | ||
656 | if (dry_run) { | |
615a5415 | 657 | /* Indicate that dest dir doesn't really exist. */ |
eb598fac | 658 | dry_run++; |
eb598fac WD |
659 | } |
660 | ||
29a89172 WD |
661 | if (!change_dir(dest_path, dry_run > 1 ? CD_SKIP_CHDIR : CD_NORMAL)) { |
662 | rsyserr(FERROR, errno, "change_dir#2 %s failed", | |
eb598fac WD |
663 | full_fname(dest_path)); |
664 | exit_cleanup(RERR_FILESELECT); | |
665 | } | |
e5a96f0f | 666 | |
e5a96f0f | 667 | return NULL; |
1ff5450d AT |
668 | } |
669 | ||
eb598fac WD |
670 | /* Otherwise, we are writing a single file, possibly on top of an |
671 | * existing non-directory. Change to the item's parent directory | |
672 | * (if it has a path component), return the basename of the | |
673 | * destination file as the local name, and use mode 2. */ | |
674 | if (!cp) | |
675 | return dest_path; | |
676 | ||
677 | if (cp == dest_path) | |
678 | dest_path = "/"; | |
679 | ||
680 | *cp = '\0'; | |
29a89172 WD |
681 | if (!change_dir(dest_path, CD_NORMAL)) { |
682 | rsyserr(FERROR, errno, "change_dir#3 %s failed", | |
eb598fac | 683 | full_fname(dest_path)); |
65417579 | 684 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 685 | } |
eb598fac | 686 | *cp = '/'; |
1ff5450d | 687 | |
eb598fac | 688 | return cp + 1; |
c627d613 AT |
689 | } |
690 | ||
ce27f36d WD |
691 | /* This function checks on our alternate-basis directories. If we're in |
692 | * dry-run mode and the destination dir does not yet exist, we'll try to | |
693 | * tweak any dest-relative paths to make them work for a dry-run (the | |
694 | * destination dir must be in curr_dir[] when this function is called). | |
42a28d9d | 695 | * We also warn about any arg that is non-existent or not a directory. */ |
ce27f36d | 696 | static void check_alt_basis_dirs(void) |
615a5415 | 697 | { |
ce27f36d WD |
698 | STRUCT_STAT st; |
699 | char **dir_p, *slash = strrchr(curr_dir, '/'); | |
700 | ||
701 | for (dir_p = basis_dir; *dir_p; dir_p++) { | |
702 | if (dry_run > 1 && **dir_p != '/') { | |
703 | int len = curr_dir_len + 1 + strlen(*dir_p) + 1; | |
704 | char *new = new_array(char, len); | |
705 | if (!new) | |
706 | out_of_memory("check_alt_basis_dirs"); | |
707 | if (slash && strncmp(*dir_p, "../", 3) == 0) { | |
708 | /* We want to remove only one leading "../" prefix for | |
709 | * the directory we couldn't create in dry-run mode: | |
710 | * this ensures that any other ".." references get | |
711 | * evaluated the same as they would for a live copy. */ | |
712 | *slash = '\0'; | |
713 | pathjoin(new, len, curr_dir, *dir_p + 3); | |
714 | *slash = '/'; | |
715 | } else | |
716 | pathjoin(new, len, curr_dir, *dir_p); | |
717 | *dir_p = new; | |
718 | } | |
719 | if (do_stat(*dir_p, &st) < 0) { | |
720 | rprintf(FWARNING, "%s arg does not exist: %s\n", | |
721 | dest_option, *dir_p); | |
722 | } else if (!S_ISDIR(st.st_mode)) { | |
723 | rprintf(FWARNING, "%s arg is not a dir: %s\n", | |
724 | dest_option, *dir_p); | |
725 | } | |
615a5415 WD |
726 | } |
727 | } | |
c627d613 | 728 | |
1a8e5c97 | 729 | /* This is only called by the sender. */ |
bc40a305 | 730 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 731 | { |
f3d6d480 WD |
732 | int i, iflags, xlen; |
733 | uchar fnamecmp_type; | |
734 | char xname[MAXPATHLEN]; | |
1a8e5c97 | 735 | |
0c2e8f93 WD |
736 | shutting_down = True; |
737 | ||
1a8e5c97 WD |
738 | if (protocol_version < 29) |
739 | i = read_int(f_in); | |
740 | else { | |
20caffd2 | 741 | i = read_ndx_and_attrs(f_in, f_out, &iflags, &fnamecmp_type, xname, &xlen); |
bc40a305 WD |
742 | if (protocol_version >= 31 && i == NDX_DONE) { |
743 | if (am_sender) | |
744 | write_ndx(f_out, NDX_DONE); | |
745 | else { | |
746 | if (batch_gen_fd >= 0) { | |
747 | while (read_int(batch_gen_fd) != NDX_DEL_STATS) {} | |
748 | read_del_stats(batch_gen_fd); | |
749 | } | |
20caffd2 | 750 | write_int(f_out, NDX_DONE); |
bc40a305 | 751 | } |
20caffd2 | 752 | i = read_ndx_and_attrs(f_in, f_out, &iflags, &fnamecmp_type, xname, &xlen); |
bc40a305 | 753 | } |
4e0fcd85 WD |
754 | } |
755 | ||
82ad07c4 | 756 | if (i != NDX_DONE) { |
c7791b8c WD |
757 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
758 | i, who_am_i()); | |
1a8e5c97 | 759 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
760 | } |
761 | } | |
762 | ||
eb598fac | 763 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 764 | { |
7a6421fa AT |
765 | struct file_list *flist; |
766 | char *dir = argv[0]; | |
c627d613 | 767 | |
92d02148 WD |
768 | we_send_keepalive_messages = io_timeout != 0 && protocol_version < 31; |
769 | ||
951e826b | 770 | if (DEBUG_GTE(SEND, 1)) { |
45e08edb WD |
771 | rprintf(FINFO, "server_sender starting pid=%ld\n", |
772 | (long)getpid()); | |
773 | } | |
d9c7edf6 | 774 | |
2adbcdc7 | 775 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
776 | rprintf(FERROR, "ERROR: module is write only\n"); |
777 | exit_cleanup(RERR_SYNTAX); | |
778 | return; | |
779 | } | |
d7205694 | 780 | if (am_daemon && read_only && remove_source_files) { |
bf26aa22 | 781 | rprintf(FERROR, |
044ccbaa | 782 | "ERROR: --remove-%s-files cannot be used with a read-only module\n", |
47c11975 | 783 | remove_source_files == 1 ? "source" : "sent"); |
bf26aa22 WD |
784 | exit_cleanup(RERR_SYNTAX); |
785 | return; | |
786 | } | |
7a92ded3 | 787 | |
582c1589 | 788 | if (!relative_paths) { |
29a89172 WD |
789 | if (!change_dir(dir, CD_NORMAL)) { |
790 | rsyserr(FERROR, errno, "change_dir#3 %s failed", | |
582c1589 WD |
791 | full_fname(dir)); |
792 | exit_cleanup(RERR_FILESELECT); | |
793 | } | |
7a6421fa AT |
794 | } |
795 | argc--; | |
796 | argv++; | |
d9c7edf6 | 797 | |
e844a4a8 | 798 | if (argc == 0 && (recurse || xfer_dirs || list_only)) { |
e1f67417 | 799 | argc = 1; |
7a6421fa AT |
800 | argv--; |
801 | argv[0] = "."; | |
802 | } | |
d9c7edf6 | 803 | |
7a6421fa | 804 | flist = send_file_list(f_out,argc,argv); |
9decb4d2 | 805 | if (!flist || flist->used == 0) |
8d9dc9f9 | 806 | exit_cleanup(0); |
8d9dc9f9 | 807 | |
f3d6d480 | 808 | io_start_buffering_in(f_in); |
da3478b2 | 809 | |
f3d6d480 | 810 | send_files(f_in, f_out); |
f1e3656e | 811 | io_flush(FULL_FLUSH); |
33c4b445 | 812 | handle_stats(f_out); |
4e0fcd85 | 813 | if (protocol_version >= 24) |
bc40a305 | 814 | read_final_goodbye(f_in, f_out); |
f1e3656e | 815 | io_flush(FULL_FLUSH); |
7a6421fa | 816 | exit_cleanup(0); |
c627d613 AT |
817 | } |
818 | ||
819 | ||
f3d6d480 | 820 | static int do_recv(int f_in, int f_out, char *local_name) |
dc5ddbcc | 821 | { |
d186eb1a | 822 | int pid; |
84e6d6fd | 823 | int exit_code = 0; |
c70e07d9 | 824 | int error_pipe[2]; |
dc5ddbcc | 825 | |
bb6721dc WD |
826 | /* The receiving side mustn't obey this, or an existing symlink that |
827 | * points to an identical file won't be replaced by the referent. */ | |
01103e18 | 828 | copy_links = copy_dirlinks = copy_unsafe_links = 0; |
bb6721dc | 829 | |
1e1ca253 | 830 | #ifdef SUPPORT_HARD_LINKS |
d4d6646a | 831 | if (preserve_hard_links && !inc_recurse) |
da131912 | 832 | match_hard_links(first_flist); |
1e1ca253 | 833 | #endif |
dc5ddbcc | 834 | |
c70e07d9 | 835 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 836 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 837 | exit_cleanup(RERR_IPC); |
554e0a8d | 838 | } |
d9c7edf6 | 839 | |
3696674b WD |
840 | if (backup_dir) { |
841 | int ret = make_path(backup_dir_buf, MKP_DROP_NAME); /* drops trailing slash */ | |
842 | if (ret < 0) | |
843 | exit_cleanup(RERR_SYNTAX); | |
844 | if (ret) | |
845 | rprintf(FINFO, "Created backup_dir %s\n", backup_dir_buf); | |
4e9c7fae WD |
846 | else if (INFO_GTE(BACKUP, 1)) |
847 | rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf); | |
3696674b WD |
848 | } |
849 | ||
20caffd2 | 850 | io_flush(FULL_FLUSH); |
c6e7fcb4 | 851 | |
ba449e44 | 852 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 853 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
854 | exit_cleanup(RERR_IPC); |
855 | } | |
856 | ||
857 | if (pid == 0) { | |
82b2a31a | 858 | am_receiver = 1; |
20caffd2 WD |
859 | send_msgs_to_gen = am_server; |
860 | ||
554e0a8d | 861 | close(error_pipe[0]); |
20caffd2 WD |
862 | |
863 | /* We can't let two processes write to the socket at one time. */ | |
705132bc | 864 | io_end_multiplex_out(MPLX_SWITCHING); |
3a69fad0 WD |
865 | if (f_in != f_out) |
866 | close(f_out); | |
41000dff | 867 | sock_f_out = -1; |
20caffd2 | 868 | f_out = error_pipe[1]; |
e08c9610 | 869 | |
20caffd2 | 870 | bwlimit_writemax = 0; /* receiver doesn't need to do this */ |
554e0a8d | 871 | |
20caffd2 WD |
872 | if (read_batch) |
873 | io_start_buffering_in(f_in); | |
874 | io_start_multiplex_out(f_out); | |
554e0a8d | 875 | |
20caffd2 | 876 | recv_files(f_in, f_out, local_name); |
f1e3656e | 877 | io_flush(FULL_FLUSH); |
33c4b445 | 878 | handle_stats(f_in); |
e08c9610 | 879 | |
951e826b WD |
880 | if (output_needs_newline) { |
881 | fputc('\n', stdout); | |
882 | output_needs_newline = 0; | |
883 | } | |
884 | ||
20caffd2 WD |
885 | write_int(f_out, NDX_DONE); |
886 | send_msg(MSG_STATS, (char*)&stats.total_read, sizeof stats.total_read, 0); | |
f1e3656e | 887 | io_flush(FULL_FLUSH); |
4e0fcd85 | 888 | |
40df65fd WD |
889 | /* Handle any keep-alive packets from the post-processing work |
890 | * that the generator does. */ | |
4e0fcd85 | 891 | if (protocol_version >= 29) { |
051182cb | 892 | kluge_around_eof = -1; |
1a8e5c97 WD |
893 | |
894 | /* This should only get stopped via a USR2 signal. */ | |
bc40a305 | 895 | read_final_goodbye(f_in, f_out); |
1a8e5c97 | 896 | |
3485ae83 WD |
897 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
898 | who_am_i()); | |
1a8e5c97 | 899 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
900 | } |
901 | ||
9e0582f9 WD |
902 | /* Finally, we go to sleep until our parent kills us with a |
903 | * USR2 signal. We sleep for a short time, as on some OSes | |
904 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
905 | while (1) |
906 | msleep(20); | |
d186eb1a | 907 | } |
dc5ddbcc | 908 | |
b695f242 | 909 | am_generator = 1; |
92d02148 | 910 | we_send_keepalive_messages = io_timeout != 0; |
2885270b | 911 | flist_receiving_enabled = True; |
f3d6d480 | 912 | |
705132bc | 913 | io_end_multiplex_in(MPLX_SWITCHING); |
e8a96e27 | 914 | if (write_batch && !am_server) |
b9f592fb | 915 | stop_write_batch(); |
b695f242 | 916 | |
554e0a8d | 917 | close(error_pipe[1]); |
3a69fad0 WD |
918 | if (f_in != f_out) |
919 | close(f_in); | |
41000dff | 920 | sock_f_in = -1; |
20caffd2 | 921 | f_in = error_pipe[0]; |
e1b3d5c4 | 922 | |
f3d6d480 | 923 | io_start_buffering_out(f_out); |
20caffd2 | 924 | io_start_multiplex_in(f_in); |
554e0a8d | 925 | |
da131912 WD |
926 | #ifdef SUPPORT_HARD_LINKS |
927 | if (preserve_hard_links && inc_recurse) { | |
928 | struct file_list *flist; | |
929 | for (flist = first_flist; flist; flist = flist->next) | |
930 | match_hard_links(flist); | |
931 | } | |
932 | #endif | |
933 | ||
f3d6d480 | 934 | generate_files(f_out, local_name); |
8d9dc9f9 | 935 | |
33c4b445 | 936 | handle_stats(-1); |
f1e3656e | 937 | io_flush(FULL_FLUSH); |
0c2e8f93 | 938 | shutting_down = True; |
d04e9c51 | 939 | if (protocol_version >= 24) { |
8ada7518 | 940 | /* send a final goodbye message */ |
9ae7a2cd | 941 | write_ndx(f_out, NDX_DONE); |
8ada7518 | 942 | } |
f1e3656e | 943 | io_flush(FULL_FLUSH); |
8ada7518 | 944 | |
089a2435 | 945 | kill(pid, SIGUSR2); |
84e6d6fd WD |
946 | wait_process_with_flush(pid, &exit_code); |
947 | return exit_code; | |
dc5ddbcc AT |
948 | } |
949 | ||
f3d6d480 | 950 | static void do_server_recv(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 951 | { |
84e6d6fd | 952 | int exit_code; |
7a6421fa | 953 | struct file_list *flist; |
6c2e5b56 | 954 | char *local_name = NULL; |
951e826b | 955 | int negated_levels; |
07bff66f | 956 | |
20caffd2 | 957 | if (filesfrom_fd >= 0 && !msgs2stderr && protocol_version < 31) { |
07bff66f | 958 | /* We can't mix messages with files-from data on the socket, |
951e826b WD |
959 | * so temporarily turn off info/debug messages. */ |
960 | negate_output_levels(); | |
961 | negated_levels = 1; | |
962 | } else | |
963 | negated_levels = 0; | |
f0fca04e | 964 | |
951e826b | 965 | if (DEBUG_GTE(RECV, 1)) { |
45e08edb WD |
966 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", |
967 | argc, (long)getpid()); | |
968 | } | |
09b7f5db | 969 | |
d7205694 | 970 | if (am_daemon && read_only) { |
09b7f5db AT |
971 | rprintf(FERROR,"ERROR: module is read only\n"); |
972 | exit_cleanup(RERR_SYNTAX); | |
973 | return; | |
974 | } | |
975 | ||
7a6421fa | 976 | if (argc > 0) { |
a1018691 | 977 | char *dir = argv[0]; |
7a6421fa AT |
978 | argc--; |
979 | argv++; | |
29a89172 WD |
980 | if (!am_daemon && !change_dir(dir, CD_NORMAL)) { |
981 | rsyserr(FERROR, errno, "change_dir#4 %s failed", | |
982e05bb | 982 | full_fname(dir)); |
65417579 | 983 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 984 | } |
7a6421fa | 985 | } |
c627d613 | 986 | |
f3d6d480 | 987 | if (protocol_version >= 30) |
d8587b46 | 988 | io_start_multiplex_in(f_in); |
f3d6d480 WD |
989 | else |
990 | io_start_buffering_in(f_in); | |
57dee64e | 991 | recv_filter_list(f_in); |
c627d613 | 992 | |
7c2a9e76 | 993 | if (filesfrom_fd >= 0) { |
07bff66f WD |
994 | /* We need to send the files-from names to the sender at the |
995 | * same time that we receive the file-list from them, so we | |
996 | * need the IO routines to automatically write out the names | |
997 | * onto our f_out socket as we read the file-list. This | |
998 | * avoids both deadlock and extra delays/buffers. */ | |
20caffd2 | 999 | start_filesfrom_forwarding(filesfrom_fd); |
7c2a9e76 WD |
1000 | filesfrom_fd = -1; |
1001 | } | |
1002 | ||
b9f592fb | 1003 | flist = recv_file_list(f_in); |
4c36a13e AT |
1004 | if (!flist) { |
1005 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 1006 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 1007 | } |
3ea6e0e7 | 1008 | if (inc_recurse && file_total == 1) |
f3d6d480 | 1009 | recv_additional_file_list(f_in); |
951e826b WD |
1010 | |
1011 | if (negated_levels) | |
1012 | negate_output_levels(); | |
d9c7edf6 | 1013 | |
29fad7a3 | 1014 | if (argc > 0) |
7a6421fa | 1015 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 1016 | |
7c58c991 WD |
1017 | /* Now that we know what our destination directory turned out to be, |
1018 | * we can sanitize the --link-/copy-/compare-dest args correctly. */ | |
1019 | if (sanitize_paths) { | |
ce27f36d WD |
1020 | char **dir_p; |
1021 | for (dir_p = basis_dir; *dir_p; dir_p++) | |
d48810ba | 1022 | *dir_p = sanitize_path(NULL, *dir_p, NULL, curr_dir_depth, SP_DEFAULT); |
ce27f36d | 1023 | if (partial_dir) |
d48810ba | 1024 | partial_dir = sanitize_path(NULL, partial_dir, NULL, curr_dir_depth, SP_DEFAULT); |
c2c8db91 | 1025 | } |
ce27f36d | 1026 | check_alt_basis_dirs(); |
615a5415 | 1027 | |
819bfe45 | 1028 | if (daemon_filter_list.head) { |
a1018691 | 1029 | char **dir_p; |
7b6c5c77 | 1030 | filter_rule_list *elp = &daemon_filter_list; |
c2c8db91 | 1031 | |
a1018691 WD |
1032 | for (dir_p = basis_dir; *dir_p; dir_p++) { |
1033 | char *dir = *dir_p; | |
1034 | if (*dir == '/') | |
1035 | dir += module_dirlen; | |
1df02d13 | 1036 | if (check_filter(elp, FLOG, dir, 1) < 0) |
c2c8db91 WD |
1037 | goto options_rejected; |
1038 | } | |
1039 | if (partial_dir && *partial_dir == '/' | |
1df02d13 | 1040 | && check_filter(elp, FLOG, partial_dir + module_dirlen, 1) < 0) { |
c2c8db91 WD |
1041 | options_rejected: |
1042 | rprintf(FERROR, | |
1043 | "Your options have been rejected by the server.\n"); | |
1044 | exit_cleanup(RERR_SYNTAX); | |
1045 | } | |
7c58c991 WD |
1046 | } |
1047 | ||
f3d6d480 | 1048 | exit_code = do_recv(f_in, f_out, local_name); |
84e6d6fd | 1049 | exit_cleanup(exit_code); |
c627d613 AT |
1050 | } |
1051 | ||
1052 | ||
734a94a2 | 1053 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
1054 | { |
1055 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 1056 | return 0; |
25d34a5c MP |
1057 | } |
1058 | ||
1059 | ||
9486289c | 1060 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 1061 | { |
f0359dd0 AT |
1062 | set_nonblocking(f_in); |
1063 | set_nonblocking(f_out); | |
1064 | ||
da3478b2 WD |
1065 | io_set_sock_fds(f_in, f_out); |
1066 | setup_protocol(f_out, f_in); | |
1067 | ||
d04e9c51 | 1068 | if (protocol_version >= 23) |
d8587b46 | 1069 | io_start_multiplex_out(f_out); |
a0f1ed55 WD |
1070 | if (am_daemon && io_timeout && protocol_version >= 31) |
1071 | send_msg_int(MSG_IO_TIMEOUT, io_timeout); | |
7a6421fa | 1072 | |
7a6421fa | 1073 | if (am_sender) { |
83926d3c | 1074 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 | 1075 | if (need_messages_from_generator) |
d8587b46 | 1076 | io_start_multiplex_in(f_in); |
705132bc WD |
1077 | else |
1078 | io_start_buffering_in(f_in); | |
7842418b | 1079 | recv_filter_list(f_in); |
7a6421fa | 1080 | do_server_sender(f_in, f_out, argc, argv); |
07613def | 1081 | } else |
7a6421fa | 1082 | do_server_recv(f_in, f_out, argc, argv); |
7a6421fa | 1083 | exit_cleanup(0); |
366345fe AT |
1084 | } |
1085 | ||
20caffd2 WD |
1086 | /* This is called once the connection has been negotiated. It is used |
1087 | * for rsyncd, remote-shell, and local connections. */ | |
19b27a48 | 1088 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 1089 | { |
088aac85 | 1090 | struct file_list *flist = NULL; |
84e6d6fd | 1091 | int exit_code = 0, exit_code2 = 0; |
9486289c | 1092 | char *local_name = NULL; |
19b27a48 AT |
1093 | |
1094 | cleanup_child_pid = pid; | |
67a28eb2 | 1095 | if (!read_batch) { |
b9f592fb WD |
1096 | set_nonblocking(f_in); |
1097 | set_nonblocking(f_out); | |
1098 | } | |
f0359dd0 | 1099 | |
da3478b2 | 1100 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
1101 | setup_protocol(f_out,f_in); |
1102 | ||
18882701 WD |
1103 | /* We set our stderr file handle to blocking because ssh might have |
1104 | * set it to non-blocking. This can be particularly troublesome if | |
1105 | * stderr is a clone of stdout, because ssh would have set our stdout | |
1106 | * to non-blocking at the same time (which can easily cause us to lose | |
1107 | * output from our print statements). This kluge shouldn't cause ssh | |
1108 | * any problems for how we use it. Note also that we delayed setting | |
1109 | * this until after the above protocol setup so that we know for sure | |
1110 | * that ssh is done twiddling its file descriptors. */ | |
1111 | set_blocking(STDERR_FILENO); | |
1112 | ||
9486289c | 1113 | if (am_sender) { |
83926d3c | 1114 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
92d02148 | 1115 | we_send_keepalive_messages = io_timeout != 0 && protocol_version < 31; |
886df221 WD |
1116 | |
1117 | if (always_checksum | |
1118 | && (log_format_has(stdout_format, 'C') | |
1119 | || log_format_has(logfile_format, 'C'))) | |
1120 | sender_keeps_checksum = 1; | |
1121 | ||
f3d6d480 | 1122 | if (protocol_version >= 30) |
d8587b46 | 1123 | io_start_multiplex_out(f_out); |
f3d6d480 WD |
1124 | else |
1125 | io_start_buffering_out(f_out); | |
20caffd2 WD |
1126 | if (protocol_version >= 31 || (!filesfrom_host && protocol_version >= 23)) |
1127 | io_start_multiplex_in(f_in); | |
705132bc WD |
1128 | else |
1129 | io_start_buffering_in(f_in); | |
57dee64e | 1130 | send_filter_list(f_out); |
860236bf | 1131 | if (filesfrom_host) |
7c2a9e76 | 1132 | filesfrom_fd = f_in; |
b9f592fb | 1133 | |
e8a96e27 | 1134 | if (write_batch && !am_server) |
b9f592fb | 1135 | start_write_batch(f_out); |
a00628b3 | 1136 | flist = send_file_list(f_out, argc, argv); |
951e826b | 1137 | if (DEBUG_GTE(FLIST, 3)) |
9486289c | 1138 | rprintf(FINFO,"file list sent\n"); |
f3d6d480 | 1139 | |
20caffd2 | 1140 | if (protocol_version < 31 && filesfrom_host && protocol_version >= 23) |
d8587b46 | 1141 | io_start_multiplex_in(f_in); |
e1b3d5c4 | 1142 | |
f1e3656e | 1143 | io_flush(NORMAL_FLUSH); |
f3d6d480 | 1144 | send_files(f_in, f_out); |
f1e3656e | 1145 | io_flush(FULL_FLUSH); |
33c4b445 | 1146 | handle_stats(-1); |
4e0fcd85 | 1147 | if (protocol_version >= 24) |
bc40a305 | 1148 | read_final_goodbye(f_in, f_out); |
9486289c | 1149 | if (pid != -1) { |
951e826b | 1150 | if (DEBUG_GTE(EXIT, 2)) |
08a740ff | 1151 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 1152 | io_flush(FULL_FLUSH); |
84e6d6fd | 1153 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1154 | } |
33c4b445 | 1155 | output_summary(); |
c87ae64a | 1156 | io_flush(FULL_FLUSH); |
84e6d6fd | 1157 | exit_cleanup(exit_code); |
9486289c | 1158 | } |
f7632fc6 | 1159 | |
f3d6d480 WD |
1160 | if (!read_batch) { |
1161 | if (protocol_version >= 23) | |
d8587b46 | 1162 | io_start_multiplex_in(f_in); |
f3d6d480 | 1163 | if (need_messages_from_generator) |
d8587b46 | 1164 | io_start_multiplex_out(f_out); |
705132bc WD |
1165 | else |
1166 | io_start_buffering_out(f_out); | |
f3d6d480 | 1167 | } |
bf26aa22 | 1168 | |
57dee64e | 1169 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 1170 | |
7c2a9e76 | 1171 | if (filesfrom_fd >= 0) { |
20caffd2 | 1172 | start_filesfrom_forwarding(filesfrom_fd); |
7c2a9e76 WD |
1173 | filesfrom_fd = -1; |
1174 | } | |
1175 | ||
e8a96e27 | 1176 | if (write_batch && !am_server) |
b9f592fb | 1177 | start_write_batch(f_in); |
9486289c | 1178 | flist = recv_file_list(f_in); |
3ea6e0e7 | 1179 | if (inc_recurse && file_total == 1) |
f3d6d480 | 1180 | recv_additional_file_list(f_in); |
d9c7edf6 | 1181 | |
9decb4d2 | 1182 | if (flist && flist->used > 0) { |
9d19f8a5 | 1183 | local_name = get_local_name(flist, argv[0]); |
d9c7edf6 | 1184 | |
ce27f36d | 1185 | check_alt_basis_dirs(); |
615a5415 | 1186 | |
f3d6d480 | 1187 | exit_code2 = do_recv(f_in, f_out, local_name); |
9d19f8a5 WD |
1188 | } else { |
1189 | handle_stats(-1); | |
1190 | output_summary(); | |
1191 | } | |
d9c7edf6 | 1192 | |
9486289c | 1193 | if (pid != -1) { |
951e826b | 1194 | if (DEBUG_GTE(RECV, 1)) |
08a740ff | 1195 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 1196 | io_flush(FULL_FLUSH); |
84e6d6fd | 1197 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1198 | } |
d9c7edf6 | 1199 | |
84e6d6fd | 1200 | return MAX(exit_code, exit_code2); |
9486289c AT |
1201 | } |
1202 | ||
07613def | 1203 | static int copy_argv(char *argv[]) |
7169bb4a MP |
1204 | { |
1205 | int i; | |
1206 | ||
1207 | for (i = 0; argv[i]; i++) { | |
1208 | if (!(argv[i] = strdup(argv[i]))) { | |
1209 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
1210 | __FILE__, __LINE__); | |
1211 | return RERR_MALLOC; | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | ||
20caffd2 | 1219 | /* Start a client for either type of remote connection. Work out |
0ba48136 MP |
1220 | * whether the arguments request a remote shell or rsyncd connection, |
1221 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
1222 | * |
1223 | * Calls either start_socket_client (for sockets) or do_cmd and | |
20caffd2 | 1224 | * client_run (for ssh). */ |
fc8a6b97 | 1225 | static int start_client(int argc, char *argv[]) |
5d6bcd44 | 1226 | { |
f7e5068d WD |
1227 | char *p, *shell_machine = NULL, *shell_user = NULL; |
1228 | char **remote_argv; | |
1229 | int remote_argc; | |
1230 | int f_in, f_out; | |
19b27a48 AT |
1231 | int ret; |
1232 | pid_t pid; | |
7169bb4a MP |
1233 | |
1234 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 1235 | * command line. */ |
f7e5068d WD |
1236 | if ((ret = copy_argv(argv)) != 0) |
1237 | return ret; | |
5d6bcd44 | 1238 | |
d16c245f | 1239 | if (!read_batch) { /* for read_batch, NO source is specified */ |
f7e5068d WD |
1240 | char *path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
1241 | if (path) { /* source is remote */ | |
a960239f WD |
1242 | char *dummy_host; |
1243 | int dummy_port = 0; | |
f7e5068d WD |
1244 | *argv = path; |
1245 | remote_argv = argv; | |
1246 | remote_argc = argc; | |
1247 | argv += argc - 1; | |
1248 | if (argc == 1 || **argv == ':') | |
1249 | argc = 0; /* no dest arg */ | |
a960239f | 1250 | else if (check_for_hostspec(*argv, &dummy_host, &dummy_port)) { |
9425918d WD |
1251 | rprintf(FERROR, |
1252 | "The source and destination cannot both be remote.\n"); | |
1253 | exit_cleanup(RERR_SYNTAX); | |
f7e5068d WD |
1254 | } else { |
1255 | remote_argc--; /* don't count dest */ | |
1256 | argc = 1; | |
9425918d | 1257 | } |
860236bf WD |
1258 | if (filesfrom_host && *filesfrom_host |
1259 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1260 | rprintf(FERROR, |
50b31539 | 1261 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1262 | exit_cleanup(RERR_SYNTAX); |
1263 | } | |
42ccb4c0 | 1264 | am_sender = 0; |
e208631a WD |
1265 | if (rsync_port) |
1266 | daemon_over_rsh = shell_cmd ? 1 : -1; | |
42ccb4c0 WD |
1267 | } else { /* source is local, check dest arg */ |
1268 | am_sender = 1; | |
1269 | ||
f7e5068d | 1270 | if (argc > 1) { |
ee8e2b15 | 1271 | p = argv[--argc]; |
f7e5068d WD |
1272 | remote_argv = argv + argc; |
1273 | } else { | |
1274 | static char *dotarg[1] = { "." }; | |
1275 | p = dotarg[0]; | |
1276 | remote_argv = dotarg; | |
d9c7edf6 | 1277 | } |
f7e5068d | 1278 | remote_argc = 1; |
a125c82a | 1279 | |
f7e5068d WD |
1280 | path = check_for_hostspec(p, &shell_machine, &rsync_port); |
1281 | if (path && filesfrom_host && *filesfrom_host | |
860236bf | 1282 | && strcmp(filesfrom_host, shell_machine) != 0) { |
7c2a9e76 | 1283 | rprintf(FERROR, |
50b31539 | 1284 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1285 | exit_cleanup(RERR_SYNTAX); |
1286 | } | |
f7e5068d | 1287 | if (!path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1288 | local_server = 1; |
860236bf | 1289 | if (filesfrom_host) { |
7c2a9e76 | 1290 | rprintf(FERROR, |
50b31539 | 1291 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1292 | exit_cleanup(RERR_SYNTAX); |
1293 | } | |
860236bf | 1294 | shell_machine = NULL; |
f7e5068d WD |
1295 | } else { /* hostspec was found, so dest is remote */ |
1296 | argv[argc] = path; | |
1297 | if (rsync_port) | |
1298 | daemon_over_rsh = shell_cmd ? 1 : -1; | |
1299 | } | |
5d6bcd44 | 1300 | } |
d16c245f | 1301 | } else { /* read_batch */ |
d9c7edf6 | 1302 | local_server = 1; |
f7e5068d | 1303 | if (check_for_hostspec(argv[argc-1], &shell_machine, &rsync_port)) { |
b9f592fb WD |
1304 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1305 | exit_cleanup(RERR_SYNTAX); | |
1306 | } | |
0a23e336 WD |
1307 | remote_argv = argv += argc - 1; |
1308 | remote_argc = argc = 1; | |
6902ed17 MP |
1309 | } |
1310 | ||
f7e5068d | 1311 | if (am_sender) { |
a960239f WD |
1312 | char *dummy_host; |
1313 | int dummy_port = rsync_port; | |
f7e5068d WD |
1314 | int i; |
1315 | /* For local source, extra source args must not have hostspec. */ | |
1316 | for (i = 1; i < argc; i++) { | |
a960239f | 1317 | if (check_for_hostspec(argv[i], &dummy_host, &dummy_port)) { |
f7e5068d WD |
1318 | rprintf(FERROR, "Unexpected remote arg: %s\n", argv[i]); |
1319 | exit_cleanup(RERR_SYNTAX); | |
1320 | } | |
1321 | } | |
1322 | } else { | |
a960239f WD |
1323 | char *dummy_host; |
1324 | int dummy_port = rsync_port; | |
f7e5068d | 1325 | int i; |
a960239f WD |
1326 | /* For remote source, any extra source args must have either |
1327 | * the same hostname or an empty hostname. */ | |
f7e5068d | 1328 | for (i = 1; i < remote_argc; i++) { |
a960239f WD |
1329 | char *arg = check_for_hostspec(remote_argv[i], &dummy_host, &dummy_port); |
1330 | if (!arg) { | |
f7e5068d WD |
1331 | rprintf(FERROR, "Unexpected local arg: %s\n", remote_argv[i]); |
1332 | rprintf(FERROR, "If arg is a remote file/dir, prefix it with a colon (:).\n"); | |
1333 | exit_cleanup(RERR_SYNTAX); | |
1334 | } | |
a960239f WD |
1335 | if (*dummy_host && strcmp(dummy_host, shell_machine) != 0) { |
1336 | rprintf(FERROR, "All source args must come from the same machine.\n"); | |
1337 | exit_cleanup(RERR_SYNTAX); | |
1338 | } | |
1339 | if (rsync_port != dummy_port) { | |
1340 | if (!rsync_port || !dummy_port) | |
1341 | rprintf(FERROR, "All source args must use the same hostspec format.\n"); | |
1342 | else | |
1343 | rprintf(FERROR, "All source args must use the same port number.\n"); | |
1344 | exit_cleanup(RERR_SYNTAX); | |
1345 | } | |
1346 | remote_argv[i] = arg; | |
f7e5068d | 1347 | } |
e208631a WD |
1348 | } |
1349 | ||
1350 | if (daemon_over_rsh < 0) | |
f7e5068d | 1351 | return start_socket_client(shell_machine, remote_argc, remote_argv, argc, argv); |
e208631a | 1352 | |
a39da29a | 1353 | if (password_file && !daemon_over_rsh) { |
327c559a WD |
1354 | rprintf(FERROR, "The --password-file option may only be " |
1355 | "used when accessing an rsync daemon.\n"); | |
a39da29a WD |
1356 | exit_cleanup(RERR_SYNTAX); |
1357 | } | |
1358 | ||
ba22c9e2 WD |
1359 | if (connect_timeout) { |
1360 | rprintf(FERROR, "The --contimeout option may only be " | |
1361 | "used when connecting to an rsync daemon.\n"); | |
1362 | exit_cleanup(RERR_SYNTAX); | |
1363 | } | |
1364 | ||
5d6bcd44 | 1365 | if (shell_machine) { |
6fc048f4 | 1366 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1367 | if (p) { |
1368 | *p = 0; | |
1369 | shell_user = shell_machine; | |
1370 | shell_machine = p+1; | |
1371 | } | |
1372 | } | |
1373 | ||
951e826b | 1374 | if (DEBUG_GTE(CMD, 2)) { |
9486289c | 1375 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
f7e5068d | 1376 | NS(shell_cmd), NS(shell_machine), NS(shell_user), |
7d0fe4da | 1377 | NS(remote_argv[0])); |
5d6bcd44 | 1378 | } |
d9c7edf6 | 1379 | |
f7e5068d WD |
1380 | pid = do_cmd(shell_cmd, shell_machine, shell_user, remote_argv, remote_argc, |
1381 | &f_in, &f_out); | |
75aeac44 WD |
1382 | |
1383 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1384 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1385 | if (daemon_over_rsh) { |
1386 | int tmpret; | |
f7e5068d | 1387 | tmpret = start_inband_exchange(f_in, f_out, shell_user, remote_argc, remote_argv); |
75aeac44 WD |
1388 | if (tmpret < 0) |
1389 | return tmpret; | |
1390 | } | |
1391 | ||
fc8a6b97 AT |
1392 | ret = client_run(f_in, f_out, pid, argc, argv); |
1393 | ||
1394 | fflush(stdout); | |
1395 | fflush(stderr); | |
1396 | ||
1397 | return ret; | |
5d6bcd44 AT |
1398 | } |
1399 | ||
366345fe | 1400 | |
067669da WD |
1401 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1402 | { | |
6bf32edb | 1403 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1404 | } |
1405 | ||
067669da WD |
1406 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1407 | { | |
33c4b445 WD |
1408 | if (!am_server) |
1409 | output_summary(); | |
40df65fd | 1410 | close_all(); |
3f0211b6 | 1411 | if (got_xfer_error) |
33c4b445 | 1412 | _exit(RERR_PARTIAL); |
8b35435f AT |
1413 | _exit(0); |
1414 | } | |
1415 | ||
6d59ac19 | 1416 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1417 | { |
029c1713 | 1418 | #ifdef WNOHANG |
ee7118a8 DD |
1419 | int cnt, status; |
1420 | pid_t pid; | |
1421 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1422 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1423 | * out we're instead saving the child exit statuses for later use. |
1424 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1425 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1426 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1427 | /* save the child's exit status */ |
1428 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1429 | if (pid_stat_table[cnt].pid == 0) { | |
1430 | pid_stat_table[cnt].pid = pid; | |
1431 | pid_stat_table[cnt].status = status; | |
1432 | break; | |
1433 | } | |
1434 | } | |
ee7118a8 | 1435 | } |
029c1713 | 1436 | #endif |
8261af74 | 1437 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1438 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1439 | #endif |
19b27a48 AT |
1440 | } |
1441 | ||
c0531332 MP |
1442 | |
1443 | /** | |
1444 | * This routine catches signals and tries to send them to gdb. | |
1445 | * | |
1446 | * Because it's called from inside a signal handler it ought not to | |
1447 | * use too many library routines. | |
1448 | * | |
1449 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1450 | * debugging without easy access to X. Perhaps use an environment | |
1451 | * variable, or just call a script? | |
1452 | * | |
1453 | * @todo The /proc/ magic probably only works on Linux (and | |
1454 | * Solaris?) Can we be more portable? | |
1455 | **/ | |
1456 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1457 | const char *get_panic_action(void) |
1458 | { | |
1459 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1460 | ||
1461 | if (cmd_fmt) | |
1462 | return cmd_fmt; | |
1463 | else | |
1464 | return "xterm -display :0 -T Panic -n Panic " | |
1465 | "-e gdb /proc/%d/exe %d"; | |
1466 | } | |
1467 | ||
1468 | ||
9fb3f7a9 MP |
1469 | /** |
1470 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1471 | * | |
1472 | * This signal handler is only installed if we were configured with | |
1473 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1474 | * should just look at the environment variable, but I'm a bit leery | |
1475 | * of a signal sending us into a busy loop. | |
1476 | **/ | |
067669da | 1477 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1478 | { |
1479 | char cmd_buf[300]; | |
1480 | int ret; | |
4fdc39dd | 1481 | |
83078af5 WD |
1482 | snprintf(cmd_buf, sizeof cmd_buf, get_panic_action(), |
1483 | getpid(), getpid()); | |
c0531332 MP |
1484 | |
1485 | /* Unless we failed to execute gdb, we allow the process to | |
1486 | * continue. I'm not sure if that's right. */ | |
1487 | ret = system(cmd_buf); | |
1488 | if (ret) | |
1489 | _exit(ret); | |
1490 | } | |
1491 | #endif | |
1492 | ||
1493 | ||
5d6bcd44 | 1494 | int main(int argc,char *argv[]) |
d9c7edf6 | 1495 | { |
ff81e809 | 1496 | int ret; |
66a9dc96 WD |
1497 | int orig_argc = argc; |
1498 | char **orig_argv = argv; | |
8261af74 WD |
1499 | #ifdef HAVE_SIGACTION |
1500 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1501 | sigset_t sigmask; |
5d6bcd44 | 1502 | |
60ee01f5 | 1503 | sigemptyset(&sigmask); |
8261af74 | 1504 | # endif |
60ee01f5 WD |
1505 | sigact.sa_flags = SA_NOCLDSTOP; |
1506 | #endif | |
1507 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1508 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1509 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1510 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1511 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1512 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1513 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1514 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1515 | #endif | |
5d6bcd44 | 1516 | |
7a6421fa | 1517 | starttime = time(NULL); |
19284e2e | 1518 | our_uid = MY_UID(); |
3b83a220 | 1519 | our_gid = MY_GID(); |
19284e2e | 1520 | am_root = our_uid == 0; |
c627d613 | 1521 | |
a800434a AT |
1522 | memset(&stats, 0, sizeof(stats)); |
1523 | ||
df5e03da AT |
1524 | if (argc < 2) { |
1525 | usage(FERROR); | |
65417579 | 1526 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1527 | } |
1528 | ||
7a6421fa | 1529 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1530 | * carried across */ |
05278935 | 1531 | orig_umask = umask(0); |
5d6bcd44 | 1532 | |
eb598fac WD |
1533 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1534 | setlocale(LC_CTYPE, ""); | |
1535 | #endif | |
1536 | ||
53936ef9 | 1537 | if (!parse_arguments(&argc, (const char ***) &argv)) { |
d9c7edf6 WD |
1538 | /* FIXME: We ought to call the same error-handling |
1539 | * code here, rather than relying on getopt. */ | |
50135767 | 1540 | option_error(); |
65417579 | 1541 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1542 | } |
5d6bcd44 | 1543 | |
60ee01f5 WD |
1544 | SIGACTMASK(SIGINT, sig_int); |
1545 | SIGACTMASK(SIGHUP, sig_int); | |
1546 | SIGACTMASK(SIGTERM, sig_int); | |
1547 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1548 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1549 | #endif | |
6b83141d | 1550 | |
34758d5c MP |
1551 | /* Ignore SIGPIPE; we consistently check error codes and will |
1552 | * see the EPIPE. */ | |
60ee01f5 | 1553 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1554 | #ifdef SIGXFSZ |
1555 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1556 | #endif | |
34758d5c | 1557 | |
29a89172 | 1558 | /* Initialize change_dir() here because on some old systems getcwd |
9af87151 WD |
1559 | * (implemented by forking "pwd" and reading its output) doesn't |
1560 | * work when there are other child processes. Also, on all systems | |
1561 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
29a89172 | 1562 | change_dir(NULL, CD_NORMAL); |
c226b7c2 | 1563 | |
44e9e221 WD |
1564 | init_flist(); |
1565 | ||
e8a96e27 | 1566 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1567 | if (write_batch) |
66a9dc96 | 1568 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1569 | |
dbbab0c4 WD |
1570 | if (read_batch && strcmp(batch_name, "-") == 0) |
1571 | batch_fd = STDIN_FILENO; | |
1572 | else { | |
1573 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1574 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1575 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1576 | } |
b9f592fb WD |
1577 | if (batch_fd < 0) { |
1578 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1579 | full_fname(batch_name)); |
b9f592fb WD |
1580 | exit_cleanup(RERR_FILEIO); |
1581 | } | |
9459290a WD |
1582 | if (read_batch) |
1583 | read_stream_flags(batch_fd); | |
e10664c5 WD |
1584 | else |
1585 | write_stream_flags(batch_fd); | |
6902ed17 | 1586 | } |
e8a96e27 WD |
1587 | if (write_batch < 0) |
1588 | dry_run = 1; | |
6902ed17 | 1589 | |
44c4492a WD |
1590 | if (am_server) { |
1591 | #ifdef ICONV_CONST | |
b61665d5 | 1592 | setup_iconv(); |
44c4492a WD |
1593 | #endif |
1594 | } else if (am_daemon) | |
7a6421fa | 1595 | return daemon_main(); |
f0fca04e | 1596 | |
f7e5068d WD |
1597 | if (am_server && protect_args) { |
1598 | char buf[MAXPATHLEN]; | |
71605b0f | 1599 | protect_args = 2; |
f7e5068d | 1600 | read_args(STDIN_FILENO, NULL, buf, sizeof buf, 1, &argv, &argc, NULL); |
53936ef9 | 1601 | if (!parse_arguments(&argc, (const char ***) &argv)) { |
f7e5068d WD |
1602 | option_error(); |
1603 | exit_cleanup(RERR_SYNTAX); | |
1604 | } | |
1605 | } | |
1606 | ||
08ac228f AT |
1607 | if (argc < 1) { |
1608 | usage(FERROR); | |
65417579 | 1609 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1610 | } |
1611 | ||
7a6421fa | 1612 | if (am_server) { |
f0359dd0 AT |
1613 | set_nonblocking(STDIN_FILENO); |
1614 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1615 | if (am_daemon) |
1616 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1617 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1618 | } | |
c627d613 | 1619 | |
ff81e809 | 1620 | ret = start_client(argc, argv); |
d9c7edf6 | 1621 | if (ret == -1) |
9098bbf3 | 1622 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1623 | else |
9098bbf3 MP |
1624 | exit_cleanup(ret); |
1625 | ||
0f5a04e3 | 1626 | return ret; |
c627d613 | 1627 | } |