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; | |
32eda096 | 32 | extern int am_root; |
d9c7edf6 WD |
33 | extern int am_server; |
34 | extern int am_sender; | |
35 | extern int am_daemon; | |
3ea6e0e7 | 36 | extern int inc_recurse; |
32eda096 | 37 | extern int blocking_io; |
886df221 | 38 | extern int always_checksum; |
47c11975 | 39 | extern int remove_source_files; |
951e826b | 40 | extern int output_needs_newline; |
bf26aa22 | 41 | extern int need_messages_from_generator; |
051182cb | 42 | extern int kluge_around_eof; |
3f0211b6 | 43 | extern int got_xfer_error; |
eabc85ef | 44 | extern int msgs2stderr; |
32eda096 | 45 | extern int module_id; |
bb6721dc | 46 | extern int copy_links; |
a695b379 | 47 | extern int copy_dirlinks; |
01103e18 | 48 | extern int copy_unsafe_links; |
83926d3c | 49 | extern int keep_dirlinks; |
32eda096 | 50 | extern int preserve_hard_links; |
d04e9c51 | 51 | extern int protocol_version; |
f3d6d480 | 52 | extern int file_total; |
32eda096 | 53 | extern int recurse; |
26bbb6aa | 54 | extern int xfer_dirs; |
f7e5068d | 55 | extern int protect_args; |
32eda096 | 56 | extern int relative_paths; |
7c58c991 | 57 | extern int sanitize_paths; |
c2a2147a | 58 | extern int curr_dir_depth; |
615a5415 | 59 | extern int curr_dir_len; |
7c58c991 | 60 | extern int module_id; |
32eda096 | 61 | extern int rsync_port; |
b1df18d7 | 62 | extern int whole_file; |
32eda096 WD |
63 | extern int read_batch; |
64 | extern int write_batch; | |
b9f592fb | 65 | extern int batch_fd; |
41000dff WD |
66 | extern int sock_f_in; |
67 | extern int sock_f_out; | |
32eda096 | 68 | extern int filesfrom_fd; |
ba22c9e2 | 69 | extern int connect_timeout; |
32eda096 | 70 | extern pid_t cleanup_child_pid; |
a1018691 | 71 | extern unsigned int module_dirlen; |
50839b4b | 72 | extern struct stats stats; |
886df221 WD |
73 | extern char *stdout_format; |
74 | extern char *logfile_format; | |
860236bf | 75 | extern char *filesfrom_host; |
c2c8db91 | 76 | extern char *partial_dir; |
ce27f36d | 77 | extern char *dest_option; |
32eda096 WD |
78 | extern char *rsync_path; |
79 | extern char *shell_cmd; | |
9b3318b0 | 80 | extern char *batch_name; |
a39da29a | 81 | extern char *password_file; |
3696674b | 82 | extern char *backup_dir; |
615a5415 | 83 | extern char curr_dir[MAXPATHLEN]; |
3696674b | 84 | extern char backup_dir_buf[MAXPATHLEN]; |
b791d680 | 85 | extern char *basis_dir[MAX_BASIS_DIRS+1]; |
da131912 | 86 | extern struct file_list *first_flist; |
7b6c5c77 | 87 | extern filter_rule_list daemon_filter_list; |
57dee64e | 88 | |
19284e2e | 89 | uid_t our_uid; |
3b83a220 | 90 | gid_t our_gid; |
93465f51 | 91 | int am_generator = 0; |
57dee64e | 92 | int local_server = 0; |
e208631a | 93 | int daemon_over_rsh = 0; |
05278935 | 94 | mode_t orig_umask = 0; |
f3d6d480 | 95 | int batch_gen_fd = -1; |
886df221 | 96 | int sender_keeps_checksum = 0; |
c627d613 | 97 | |
91c5833b WD |
98 | /* There's probably never more than at most 2 outstanding child processes, |
99 | * but set it higher, just in case. */ | |
84e6d6fd | 100 | #define MAXCHILDPROCS 7 |
ee7118a8 | 101 | |
8261af74 WD |
102 | #ifdef HAVE_SIGACTION |
103 | # ifdef HAVE_SIGPROCMASK | |
104 | # define SIGACTMASK(n,h) SIGACTION(n,h), sigaddset(&sigmask,(n)) | |
105 | # else | |
106 | # define SIGACTMASK(n,h) SIGACTION(n,h) | |
107 | # endif | |
60ee01f5 WD |
108 | static struct sigaction sigact; |
109 | #endif | |
110 | ||
ee7118a8 DD |
111 | struct pid_status { |
112 | pid_t pid; | |
84e6d6fd | 113 | int status; |
ee7118a8 DD |
114 | } pid_stat_table[MAXCHILDPROCS]; |
115 | ||
33c4b445 WD |
116 | static time_t starttime, endtime; |
117 | static int64 total_read, total_written; | |
118 | ||
e5a2b854 | 119 | static void show_malloc_stats(void); |
82980a23 | 120 | |
97d8e709 | 121 | /* Works like waitpid(), but if we already harvested the child pid in our |
6d59ac19 | 122 | * remember_children(), we succeed instead of returning an error. */ |
97d8e709 | 123 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) |
82980a23 | 124 | { |
d365e229 WD |
125 | pid_t waited_pid; |
126 | ||
127 | do { | |
128 | waited_pid = waitpid(pid, status_ptr, flags); | |
129 | } while (waited_pid == -1 && errno == EINTR); | |
d9c7edf6 | 130 | |
6fb812f7 | 131 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 | 132 | /* Status of requested child no longer available: check to |
6d59ac19 | 133 | * see if it was processed by remember_children(). */ |
97d8e709 | 134 | int cnt; |
84e6d6fd | 135 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 136 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 137 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 138 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 139 | return pid; |
ee7118a8 DD |
140 | } |
141 | } | |
142 | } | |
143 | ||
97d8e709 WD |
144 | return waited_pid; |
145 | } | |
146 | ||
147 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 148 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
149 | { |
150 | pid_t waited_pid; | |
151 | int status; | |
152 | ||
153 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
154 | msleep(20); | |
155 | io_flush(FULL_FLUSH); | |
156 | } | |
157 | ||
d9c7edf6 WD |
158 | /* TODO: If the child exited on a signal, then log an |
159 | * appropriate error message. Perhaps we should also accept a | |
160 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 161 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
162 | if (waited_pid < 0) { |
163 | rsyserr(FERROR, errno, "waitpid"); | |
164 | *exit_code_ptr = RERR_WAITCHILD; | |
165 | } else if (!WIFEXITED(status)) { | |
40e6752f | 166 | #ifdef WCOREDUMP |
dbefb6b4 | 167 | if (WCOREDUMP(status)) |
84e6d6fd | 168 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
169 | else |
170 | #endif | |
171 | if (WIFSIGNALED(status)) | |
84e6d6fd | 172 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 173 | else |
84e6d6fd | 174 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 175 | } else |
84e6d6fd | 176 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
177 | } |
178 | ||
e366e530 WD |
179 | void write_del_stats(int f) |
180 | { | |
bc40a305 WD |
181 | if (read_batch) |
182 | write_int(f, NDX_DEL_STATS); | |
183 | else | |
184 | send_msg(MSG_DEL_STATS, "", 0, 0); | |
e366e530 WD |
185 | write_varint(f, stats.deleted_files - stats.deleted_dirs |
186 | - stats.deleted_symlinks - stats.deleted_devices | |
187 | - stats.deleted_specials); | |
188 | write_varint(f, stats.deleted_dirs); | |
189 | write_varint(f, stats.deleted_symlinks); | |
190 | write_varint(f, stats.deleted_devices); | |
191 | write_varint(f, stats.deleted_specials); | |
192 | } | |
193 | ||
194 | void read_del_stats(int f) | |
195 | { | |
e366e530 WD |
196 | stats.deleted_files = read_varint(f); |
197 | stats.deleted_files += stats.deleted_dirs = read_varint(f); | |
198 | stats.deleted_files += stats.deleted_symlinks = read_varint(f); | |
199 | stats.deleted_files += stats.deleted_devices = read_varint(f); | |
200 | stats.deleted_files += stats.deleted_specials = read_varint(f); | |
201 | } | |
202 | ||
b9f592fb WD |
203 | /* This function gets called from all 3 processes. We want the client side |
204 | * to actually output the text, but the sender is the only process that has | |
205 | * all the stats we need. So, if we're a client sender, we do the report. | |
206 | * If we're a server sender, we write the stats on the supplied fd. If | |
207 | * we're the client receiver we read the stats from the supplied fd and do | |
208 | * the report. All processes might also generate a set of debug stats, if | |
209 | * the verbose level is high enough (this is the only thing that the | |
210 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 211 | static void handle_stats(int f) |
c627d613 | 212 | { |
33c4b445 WD |
213 | endtime = time(NULL); |
214 | ||
b9f592fb | 215 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
216 | total_read = stats.total_read; |
217 | total_written = stats.total_written; | |
7a6421fa | 218 | |
951e826b | 219 | if (INFO_GTE(STATS, 3)) { |
5c15e29f | 220 | /* These come out from every process */ |
7bb7058e | 221 | show_malloc_stats(); |
86943126 | 222 | show_flist_stats(); |
5c15e29f MP |
223 | } |
224 | ||
e5fbaa71 S |
225 | if (am_generator) |
226 | return; | |
227 | ||
248fbb8c | 228 | if (am_daemon) { |
83926d3c WD |
229 | if (f == -1 || !am_sender) |
230 | return; | |
248fbb8c AT |
231 | } |
232 | ||
e19452a9 | 233 | if (am_server) { |
3e491682 | 234 | if (am_sender) { |
a72ba0cf WD |
235 | write_varlong30(f, total_read, 3); |
236 | write_varlong30(f, total_written, 3); | |
237 | write_varlong30(f, stats.total_size, 3); | |
f0f7e760 | 238 | if (protocol_version >= 29) { |
a72ba0cf WD |
239 | write_varlong30(f, stats.flist_buildtime, 3); |
240 | write_varlong30(f, stats.flist_xfertime, 3); | |
f0f7e760 | 241 | } |
e19452a9 | 242 | } |
7a6421fa AT |
243 | return; |
244 | } | |
e19452a9 DD |
245 | |
246 | /* this is the client */ | |
d9c7edf6 | 247 | |
9d19f8a5 | 248 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
0f78b815 | 249 | ; |
9d19f8a5 | 250 | else if (!am_sender) { |
58c5c245 WD |
251 | /* Read the first two in opposite order because the meaning of |
252 | * read/write swaps when switching from sender to receiver. */ | |
a72ba0cf WD |
253 | total_written = read_varlong30(f, 3); |
254 | total_read = read_varlong30(f, 3); | |
255 | stats.total_size = read_varlong30(f, 3); | |
f0f7e760 | 256 | if (protocol_version >= 29) { |
a72ba0cf WD |
257 | stats.flist_buildtime = read_varlong30(f, 3); |
258 | stats.flist_xfertime = read_varlong30(f, 3); | |
f0f7e760 | 259 | } |
e4676bb5 | 260 | } else if (write_batch) { |
b9f592fb WD |
261 | /* The --read-batch process is going to be a client |
262 | * receiver, so we need to give it the stats. */ | |
a72ba0cf WD |
263 | write_varlong30(batch_fd, total_read, 3); |
264 | write_varlong30(batch_fd, total_written, 3); | |
265 | write_varlong30(batch_fd, stats.total_size, 3); | |
f0f7e760 | 266 | if (protocol_version >= 29) { |
a72ba0cf WD |
267 | write_varlong30(batch_fd, stats.flist_buildtime, 3); |
268 | write_varlong30(batch_fd, stats.flist_xfertime, 3); | |
f0f7e760 | 269 | } |
e366e530 WD |
270 | } |
271 | } | |
272 | ||
273 | static void output_itemized_counts(const char *prefix, int *counts) | |
274 | { | |
275 | static char *labels[] = { "reg", "dir", "link", "dev", "special" }; | |
276 | char buf[1024], *pre = " ("; | |
277 | int j, len = 0; | |
278 | int total = counts[0]; | |
279 | if (total) { | |
280 | counts[0] -= counts[1] + counts[2] + counts[3] + counts[4]; | |
281 | for (j = 0; j < 5; j++) { | |
282 | if (counts[j]) { | |
283 | len += snprintf(buf+len, sizeof buf - len - 2, | |
284 | "%s%s: %s", | |
285 | pre, labels[j], comma_num(counts[j])); | |
286 | pre = ", "; | |
287 | } | |
288 | } | |
289 | buf[len++] = ')'; | |
a800434a | 290 | } |
e366e530 WD |
291 | buf[len] = '\0'; |
292 | rprintf(FINFO, "%s: %s%s\n", prefix, comma_num(total), buf); | |
e4676bb5 | 293 | } |
a800434a | 294 | |
e4676bb5 WD |
295 | static void output_summary(void) |
296 | { | |
951e826b | 297 | if (INFO_GTE(STATS, 2)) { |
b64ee91a | 298 | rprintf(FCLIENT, "\n"); |
e366e530 WD |
299 | output_itemized_counts("Number of files", &stats.num_files); |
300 | if (protocol_version >= 29) | |
301 | output_itemized_counts("Number of created files", &stats.created_files); | |
302 | if (protocol_version >= 31) | |
303 | output_itemized_counts("Number of deleted files", &stats.deleted_files); | |
304 | rprintf(FINFO,"Number of regular files transferred: %s\n", | |
305 | comma_num(stats.xferred_files)); | |
60613dc8 | 306 | rprintf(FINFO,"Total file size: %s bytes\n", |
adc2476f | 307 | human_num(stats.total_size)); |
60613dc8 | 308 | rprintf(FINFO,"Total transferred file size: %s bytes\n", |
adc2476f | 309 | human_num(stats.total_transferred_size)); |
60613dc8 | 310 | rprintf(FINFO,"Literal data: %s bytes\n", |
adc2476f | 311 | human_num(stats.literal_data)); |
60613dc8 | 312 | rprintf(FINFO,"Matched data: %s bytes\n", |
adc2476f | 313 | human_num(stats.matched_data)); |
eb0144d7 | 314 | rprintf(FINFO,"File list size: %s\n", |
adc2476f | 315 | human_num(stats.flist_size)); |
f0f7e760 WD |
316 | if (stats.flist_buildtime) { |
317 | rprintf(FINFO, | |
adc2476f WD |
318 | "File list generation time: %s seconds\n", |
319 | comma_dnum((double)stats.flist_buildtime / 1000, 3)); | |
f0f7e760 | 320 | rprintf(FINFO, |
adc2476f WD |
321 | "File list transfer time: %s seconds\n", |
322 | comma_dnum((double)stats.flist_xfertime / 1000, 3)); | |
f0f7e760 | 323 | } |
60613dc8 | 324 | rprintf(FINFO,"Total bytes sent: %s\n", |
adc2476f | 325 | human_num(total_written)); |
60613dc8 | 326 | rprintf(FINFO,"Total bytes received: %s\n", |
adc2476f | 327 | human_num(total_read)); |
7a6421fa | 328 | } |
d9c7edf6 | 329 | |
951e826b | 330 | if (INFO_GTE(STATS, 1)) { |
b64ee91a | 331 | rprintf(FCLIENT, "\n"); |
b9f592fb | 332 | rprintf(FINFO, |
b64ee91a | 333 | "sent %s bytes received %s bytes %s bytes/sec\n", |
adc2476f | 334 | human_num(total_written), human_num(total_read), |
60613dc8 | 335 | human_dnum((total_written + total_read)/(0.5 + (endtime - starttime)), 2)); |
adc2476f WD |
336 | rprintf(FINFO, "total size is %s speedup is %s%s\n", |
337 | human_num(stats.total_size), | |
338 | comma_dnum((double)stats.total_size / (total_written+total_read), 2), | |
641dc0c5 | 339 | write_batch < 0 ? " (BATCH ONLY)" : dry_run ? " (DRY RUN)" : ""); |
e19452a9 | 340 | } |
fc8a6b97 AT |
341 | |
342 | fflush(stdout); | |
343 | fflush(stderr); | |
c627d613 AT |
344 | } |
345 | ||
346 | ||
e5a2b854 MP |
347 | /** |
348 | * If our C library can get malloc statistics, then show them to FINFO | |
349 | **/ | |
350 | static void show_malloc_stats(void) | |
351 | { | |
4f5b0756 | 352 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
353 | struct mallinfo mi; |
354 | ||
355 | mi = mallinfo(); | |
356 | ||
b64ee91a WD |
357 | rprintf(FCLIENT, "\n"); |
358 | rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", | |
f846a9bf WD |
359 | getpid(), am_server ? "server " : "", |
360 | am_daemon ? "daemon " : "", who_am_i()); | |
361 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
362 | (long)mi.arena); | |
363 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
364 | (long)mi.ordblks); | |
365 | rprintf(FINFO, " smblks: %10ld\n", | |
366 | (long)mi.smblks); | |
367 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
368 | (long)mi.hblks); | |
369 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
370 | (long)mi.hblkhd); | |
371 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
372 | (long)mi.arena + mi.hblkhd); | |
373 | rprintf(FINFO, " usmblks: %10ld\n", | |
374 | (long)mi.usmblks); | |
375 | rprintf(FINFO, " fsmblks: %10ld\n", | |
376 | (long)mi.fsmblks); | |
377 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
378 | (long)mi.uordblks); | |
379 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
380 | (long)mi.fordblks); | |
381 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
382 | (long)mi.keepcost); | |
e5a2b854 MP |
383 | #endif /* HAVE_MALLINFO */ |
384 | } | |
385 | ||
386 | ||
0882faa2 | 387 | /* Start the remote shell. cmd may be NULL to use the default. */ |
f7e5068d WD |
388 | static pid_t do_cmd(char *cmd, char *machine, char *user, char **remote_argv, int remote_argc, |
389 | int *f_in_p, int *f_out_p) | |
c627d613 | 390 | { |
6c2e5b56 | 391 | int i, argc = 0; |
887e553f | 392 | char *args[MAX_ARGS]; |
53936ef9 | 393 | pid_t pid; |
bb4aa89c | 394 | int dash_l_set = 0; |
366345fe | 395 | |
088aac85 | 396 | if (!read_batch && !local_server) { |
82f0c63e | 397 | char *t, *f, in_quote = '\0'; |
9af87151 | 398 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 399 | if (!cmd) |
9af87151 | 400 | cmd = rsh_env; |
366345fe AT |
401 | if (!cmd) |
402 | cmd = RSYNC_RSH; | |
aa0e6b99 | 403 | cmd = strdup(cmd); /* MEMORY LEAK */ |
d9c7edf6 | 404 | if (!cmd) |
366345fe AT |
405 | goto oom; |
406 | ||
82f0c63e WD |
407 | for (t = f = cmd; *f; f++) { |
408 | if (*f == ' ') | |
409 | continue; | |
e7a392c7 | 410 | /* Comparison leaves rooms for server_options(). */ |
f7e5068d WD |
411 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) |
412 | goto arg_overflow; | |
82f0c63e WD |
413 | args[argc++] = t; |
414 | while (*f != ' ' || in_quote) { | |
415 | if (!*f) { | |
416 | if (in_quote) { | |
417 | rprintf(FERROR, | |
418 | "Missing trailing-%c in remote-shell command.\n", | |
419 | in_quote); | |
420 | exit_cleanup(RERR_SYNTAX); | |
421 | } | |
422 | f--; | |
423 | break; | |
424 | } | |
425 | if (*f == '\'' || *f == '"') { | |
426 | if (!in_quote) { | |
427 | in_quote = *f++; | |
428 | continue; | |
429 | } | |
430 | if (*f == in_quote && *++f != in_quote) { | |
431 | in_quote = '\0'; | |
432 | continue; | |
433 | } | |
434 | } | |
435 | *t++ = *f++; | |
436 | } | |
437 | *t++ = '\0'; | |
887e553f | 438 | } |
c627d613 | 439 | |
d9c7edf6 | 440 | /* check to see if we've already been given '-l user' in |
9af87151 | 441 | * the remote-shell command */ |
bb4aa89c WD |
442 | for (i = 0; i < argc-1; i++) { |
443 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
444 | dash_l_set = 1; | |
445 | } | |
446 | ||
4f5b0756 | 447 | #ifdef HAVE_REMSH |
366345fe AT |
448 | /* remsh (on HPUX) takes the arguments the other way around */ |
449 | args[argc++] = machine; | |
bb4aa89c | 450 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
451 | args[argc++] = "-l"; |
452 | args[argc++] = user; | |
453 | } | |
7b8356d0 | 454 | #else |
bb4aa89c | 455 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
456 | args[argc++] = "-l"; |
457 | args[argc++] = user; | |
458 | } | |
459 | args[argc++] = machine; | |
7b8356d0 | 460 | #endif |
c627d613 | 461 | |
366345fe | 462 | args[argc++] = rsync_path; |
c627d613 | 463 | |
9af87151 | 464 | if (blocking_io < 0) { |
90e22f4b WD |
465 | char *cp; |
466 | if ((cp = strrchr(cmd, '/')) != NULL) | |
467 | cp++; | |
468 | else | |
469 | cp = cmd; | |
470 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
471 | blocking_io = 1; | |
66b71163 | 472 | } |
e384bfbd | 473 | |
93689aa5 | 474 | server_options(args,&argc); |
e7a392c7 | 475 | |
f7e5068d WD |
476 | if (argc >= MAX_ARGS - 2) |
477 | goto arg_overflow; | |
366345fe | 478 | } |
c627d613 | 479 | |
366345fe | 480 | args[argc++] = "."; |
76076c4b | 481 | |
f7e5068d WD |
482 | if (!daemon_over_rsh) { |
483 | while (remote_argc > 0) { | |
484 | if (argc >= MAX_ARGS - 1) { | |
485 | arg_overflow: | |
486 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
487 | exit_cleanup(RERR_SYNTAX); | |
488 | } | |
489 | args[argc++] = *remote_argv++; | |
490 | remote_argc--; | |
491 | } | |
492 | } | |
c627d613 | 493 | |
366345fe | 494 | args[argc] = NULL; |
c627d613 | 495 | |
951e826b | 496 | if (DEBUG_GTE(CMD, 2)) { |
e7a392c7 | 497 | for (i = 0; i < argc; i++) |
b64ee91a WD |
498 | rprintf(FCLIENT, "cmd[%d]=%s ", i, args[i]); |
499 | rprintf(FCLIENT, "\n"); | |
366345fe AT |
500 | } |
501 | ||
c0d8e84c WD |
502 | if (read_batch) { |
503 | int from_gen_pipe[2]; | |
ea4e8cf8 | 504 | set_allow_inc_recurse(); |
c0d8e84c WD |
505 | if (fd_pair(from_gen_pipe) < 0) { |
506 | rsyserr(FERROR, errno, "pipe"); | |
507 | exit_cleanup(RERR_IPC); | |
508 | } | |
509 | batch_gen_fd = from_gen_pipe[0]; | |
f7e5068d WD |
510 | *f_out_p = from_gen_pipe[1]; |
511 | *f_in_p = batch_fd; | |
53936ef9 | 512 | pid = (pid_t)-1; /* no child pid */ |
44c4492a | 513 | #ifdef ICONV_CONST |
b61665d5 | 514 | setup_iconv(); |
44c4492a | 515 | #endif |
c0d8e84c | 516 | } else if (local_server) { |
b1df18d7 WD |
517 | /* If the user didn't request --[no-]whole-file, force |
518 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 519 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 520 | whole_file = 1; |
ea4e8cf8 | 521 | set_allow_inc_recurse(); |
53936ef9 | 522 | pid = local_child(argc, args, f_in_p, f_out_p, child_main); |
44c4492a | 523 | #ifdef ICONV_CONST |
b61665d5 | 524 | setup_iconv(); |
44c4492a | 525 | #endif |
f7e5068d | 526 | } else { |
53936ef9 | 527 | pid = piped_child(args, f_in_p, f_out_p); |
44c4492a | 528 | #ifdef ICONV_CONST |
b61665d5 | 529 | setup_iconv(); |
44c4492a | 530 | #endif |
d8e8ef32 | 531 | if (protect_args && !daemon_over_rsh) |
53936ef9 | 532 | send_protected_args(*f_out_p, args); |
f7e5068d | 533 | } |
c627d613 | 534 | |
53936ef9 | 535 | return pid; |
c627d613 | 536 | |
acee11fc | 537 | oom: |
366345fe AT |
538 | out_of_memory("do_cmd"); |
539 | return 0; /* not reached */ | |
c627d613 AT |
540 | } |
541 | ||
eb598fac WD |
542 | /* The receiving side operates in one of two modes: |
543 | * | |
cc8c5057 WD |
544 | * 1. it receives any number of files into a destination directory, |
545 | * placing them according to their names in the file-list. | |
eb598fac WD |
546 | * |
547 | * 2. it receives a single file and saves it using the name in the | |
548 | * destination path instead of its file-list name. This requires a | |
549 | * "local name" for writing out the destination file. | |
550 | * | |
a7d461fc WD |
551 | * So, our task is to figure out what mode/local-name we need. |
552 | * For mode 1, we change into the destination directory and return NULL. | |
553 | * For mode 2, we change into the directory containing the destination | |
554 | * file (if we aren't already there) and return the local-name. */ | |
eb598fac | 555 | static char *get_local_name(struct file_list *flist, char *dest_path) |
c627d613 | 556 | { |
7a6421fa | 557 | STRUCT_STAT st; |
a7d461fc | 558 | int statret; |
eb598fac | 559 | char *cp; |
c627d613 | 560 | |
951e826b | 561 | if (DEBUG_GTE(RECV, 1)) { |
eb598fac | 562 | rprintf(FINFO, "get_local_name count=%d %s\n", |
f3d6d480 | 563 | file_total, NS(dest_path)); |
eb598fac | 564 | } |
1f0610ef | 565 | |
ee8e2b15 | 566 | if (!dest_path || list_only) |
1f0610ef | 567 | return NULL; |
c95da96a | 568 | |
311676ed WD |
569 | if (daemon_filter_list.head) { |
570 | char *slash = strrchr(dest_path, '/'); | |
164cb66a | 571 | if (slash && (slash[1] == '\0' || (slash[1] == '.' && slash[2] == '\0'))) |
311676ed WD |
572 | *slash = '\0'; |
573 | else | |
574 | slash = NULL; | |
164cb66a WD |
575 | if ((*dest_path != '.' || dest_path[1] != '\0') |
576 | && (check_filter(&daemon_filter_list, FLOG, dest_path, 0) < 0 | |
577 | || check_filter(&daemon_filter_list, FLOG, dest_path, 1) < 0)) { | |
311676ed WD |
578 | rprintf(FERROR, "skipping daemon-excluded destination \"%s\"\n", |
579 | dest_path); | |
580 | exit_cleanup(RERR_FILESELECT); | |
581 | } | |
582 | if (slash) | |
583 | *slash = '/'; | |
99c3e591 WD |
584 | } |
585 | ||
a7d461fc | 586 | /* See what currently exists at the destination. */ |
1a7f3d99 | 587 | if ((statret = do_stat(dest_path, &st)) == 0) { |
a7d461fc | 588 | /* If the destination is a dir, enter it and use mode 1. */ |
1ff5450d | 589 | if (S_ISDIR(st.st_mode)) { |
29a89172 WD |
590 | if (!change_dir(dest_path, CD_NORMAL)) { |
591 | rsyserr(FERROR, errno, "change_dir#1 %s failed", | |
eb598fac | 592 | full_fname(dest_path)); |
65417579 | 593 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
594 | } |
595 | return NULL; | |
596 | } | |
f3d6d480 | 597 | if (file_total > 1) { |
eb598fac WD |
598 | rprintf(FERROR, |
599 | "ERROR: destination must be a directory when" | |
600 | " copying more than 1 file\n"); | |
65417579 | 601 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 602 | } |
f3d6d480 | 603 | if (file_total == 1 && S_ISDIR(flist->files[0]->mode)) { |
44c26bf2 WD |
604 | rprintf(FERROR, |
605 | "ERROR: cannot overwrite non-directory" | |
606 | " with a directory\n"); | |
607 | exit_cleanup(RERR_FILESELECT); | |
608 | } | |
cc8c5057 | 609 | } else if (errno != ENOENT) { |
a7d461fc WD |
610 | /* If we don't know what's at the destination, fail. */ |
611 | rsyserr(FERROR, errno, "ERROR: cannot stat destination %s", | |
cc8c5057 WD |
612 | full_fname(dest_path)); |
613 | exit_cleanup(RERR_FILESELECT); | |
1ff5450d AT |
614 | } |
615 | ||
eb598fac WD |
616 | cp = strrchr(dest_path, '/'); |
617 | ||
a7d461fc WD |
618 | /* If we need a destination directory because the transfer is not |
619 | * of a single non-directory or the user has requested one via a | |
620 | * destination path ending in a slash, create one and use mode 1. */ | |
f3d6d480 | 621 | if (file_total > 1 || (cp && !cp[1])) { |
eb598fac WD |
622 | /* Lop off the final slash (if any). */ |
623 | if (cp && !cp[1]) | |
624 | *cp = '\0'; | |
625 | ||
a7d461fc WD |
626 | if (statret == 0) { |
627 | rprintf(FERROR, | |
628 | "ERROR: destination path is not a directory\n"); | |
629 | exit_cleanup(RERR_SYNTAX); | |
630 | } | |
631 | ||
05278935 | 632 | if (mkdir_defmode(dest_path) != 0) { |
eb598fac WD |
633 | rsyserr(FERROR, errno, "mkdir %s failed", |
634 | full_fname(dest_path)); | |
635 | exit_cleanup(RERR_FILEIO); | |
636 | } | |
1ff5450d | 637 | |
7341ee2d WD |
638 | if (flist->high >= flist->low |
639 | && strcmp(flist->files[flist->low]->basename, ".") == 0) | |
288b12ee | 640 | flist->files[0]->flags |= FLAG_DIR_CREATED; |
2a94207a | 641 | |
951e826b | 642 | if (INFO_GTE(NAME, 1)) |
eb598fac WD |
643 | rprintf(FINFO, "created directory %s\n", dest_path); |
644 | ||
645 | if (dry_run) { | |
615a5415 | 646 | /* Indicate that dest dir doesn't really exist. */ |
eb598fac | 647 | dry_run++; |
eb598fac WD |
648 | } |
649 | ||
29a89172 WD |
650 | if (!change_dir(dest_path, dry_run > 1 ? CD_SKIP_CHDIR : CD_NORMAL)) { |
651 | rsyserr(FERROR, errno, "change_dir#2 %s failed", | |
eb598fac WD |
652 | full_fname(dest_path)); |
653 | exit_cleanup(RERR_FILESELECT); | |
654 | } | |
e5a96f0f | 655 | |
e5a96f0f | 656 | return NULL; |
1ff5450d AT |
657 | } |
658 | ||
eb598fac WD |
659 | /* Otherwise, we are writing a single file, possibly on top of an |
660 | * existing non-directory. Change to the item's parent directory | |
661 | * (if it has a path component), return the basename of the | |
662 | * destination file as the local name, and use mode 2. */ | |
663 | if (!cp) | |
664 | return dest_path; | |
665 | ||
666 | if (cp == dest_path) | |
667 | dest_path = "/"; | |
668 | ||
669 | *cp = '\0'; | |
29a89172 WD |
670 | if (!change_dir(dest_path, CD_NORMAL)) { |
671 | rsyserr(FERROR, errno, "change_dir#3 %s failed", | |
eb598fac | 672 | full_fname(dest_path)); |
65417579 | 673 | exit_cleanup(RERR_FILESELECT); |
1ff5450d | 674 | } |
eb598fac | 675 | *cp = '/'; |
1ff5450d | 676 | |
eb598fac | 677 | return cp + 1; |
c627d613 AT |
678 | } |
679 | ||
ce27f36d WD |
680 | /* This function checks on our alternate-basis directories. If we're in |
681 | * dry-run mode and the destination dir does not yet exist, we'll try to | |
682 | * tweak any dest-relative paths to make them work for a dry-run (the | |
683 | * destination dir must be in curr_dir[] when this function is called). | |
42a28d9d | 684 | * We also warn about any arg that is non-existent or not a directory. */ |
ce27f36d | 685 | static void check_alt_basis_dirs(void) |
615a5415 | 686 | { |
ce27f36d WD |
687 | STRUCT_STAT st; |
688 | char **dir_p, *slash = strrchr(curr_dir, '/'); | |
689 | ||
690 | for (dir_p = basis_dir; *dir_p; dir_p++) { | |
691 | if (dry_run > 1 && **dir_p != '/') { | |
692 | int len = curr_dir_len + 1 + strlen(*dir_p) + 1; | |
693 | char *new = new_array(char, len); | |
694 | if (!new) | |
695 | out_of_memory("check_alt_basis_dirs"); | |
696 | if (slash && strncmp(*dir_p, "../", 3) == 0) { | |
697 | /* We want to remove only one leading "../" prefix for | |
698 | * the directory we couldn't create in dry-run mode: | |
699 | * this ensures that any other ".." references get | |
700 | * evaluated the same as they would for a live copy. */ | |
701 | *slash = '\0'; | |
702 | pathjoin(new, len, curr_dir, *dir_p + 3); | |
703 | *slash = '/'; | |
704 | } else | |
705 | pathjoin(new, len, curr_dir, *dir_p); | |
706 | *dir_p = new; | |
707 | } | |
708 | if (do_stat(*dir_p, &st) < 0) { | |
709 | rprintf(FWARNING, "%s arg does not exist: %s\n", | |
710 | dest_option, *dir_p); | |
711 | } else if (!S_ISDIR(st.st_mode)) { | |
712 | rprintf(FWARNING, "%s arg is not a dir: %s\n", | |
713 | dest_option, *dir_p); | |
714 | } | |
615a5415 WD |
715 | } |
716 | } | |
c627d613 | 717 | |
1a8e5c97 | 718 | /* This is only called by the sender. */ |
bc40a305 | 719 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 720 | { |
f3d6d480 WD |
721 | int i, iflags, xlen; |
722 | uchar fnamecmp_type; | |
723 | char xname[MAXPATHLEN]; | |
1a8e5c97 WD |
724 | |
725 | if (protocol_version < 29) | |
726 | i = read_int(f_in); | |
727 | else { | |
bc40a305 WD |
728 | i = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, xname, &xlen); |
729 | if (protocol_version >= 31 && i == NDX_DONE) { | |
730 | if (am_sender) | |
731 | write_ndx(f_out, NDX_DONE); | |
732 | else { | |
733 | if (batch_gen_fd >= 0) { | |
734 | while (read_int(batch_gen_fd) != NDX_DEL_STATS) {} | |
735 | read_del_stats(batch_gen_fd); | |
736 | } | |
737 | send_msg(MSG_DONE, "", 0, 0); | |
738 | } | |
739 | i = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, xname, &xlen); | |
740 | } | |
4e0fcd85 WD |
741 | } |
742 | ||
82ad07c4 | 743 | if (i != NDX_DONE) { |
c7791b8c WD |
744 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
745 | i, who_am_i()); | |
1a8e5c97 | 746 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
747 | } |
748 | } | |
749 | ||
eb598fac | 750 | static void do_server_sender(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 751 | { |
7a6421fa AT |
752 | struct file_list *flist; |
753 | char *dir = argv[0]; | |
c627d613 | 754 | |
951e826b | 755 | if (DEBUG_GTE(SEND, 1)) { |
45e08edb WD |
756 | rprintf(FINFO, "server_sender starting pid=%ld\n", |
757 | (long)getpid()); | |
758 | } | |
d9c7edf6 | 759 | |
2adbcdc7 | 760 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
761 | rprintf(FERROR, "ERROR: module is write only\n"); |
762 | exit_cleanup(RERR_SYNTAX); | |
763 | return; | |
764 | } | |
47c11975 | 765 | if (am_daemon && lp_read_only(module_id) && remove_source_files) { |
bf26aa22 | 766 | rprintf(FERROR, |
044ccbaa | 767 | "ERROR: --remove-%s-files cannot be used with a read-only module\n", |
47c11975 | 768 | remove_source_files == 1 ? "source" : "sent"); |
bf26aa22 WD |
769 | exit_cleanup(RERR_SYNTAX); |
770 | return; | |
771 | } | |
7a92ded3 | 772 | |
582c1589 | 773 | if (!relative_paths) { |
29a89172 WD |
774 | if (!change_dir(dir, CD_NORMAL)) { |
775 | rsyserr(FERROR, errno, "change_dir#3 %s failed", | |
582c1589 WD |
776 | full_fname(dir)); |
777 | exit_cleanup(RERR_FILESELECT); | |
778 | } | |
7a6421fa AT |
779 | } |
780 | argc--; | |
781 | argv++; | |
d9c7edf6 | 782 | |
e844a4a8 | 783 | if (argc == 0 && (recurse || xfer_dirs || list_only)) { |
e1f67417 | 784 | argc = 1; |
7a6421fa AT |
785 | argv--; |
786 | argv[0] = "."; | |
787 | } | |
d9c7edf6 | 788 | |
7a6421fa | 789 | flist = send_file_list(f_out,argc,argv); |
9decb4d2 | 790 | if (!flist || flist->used == 0) |
8d9dc9f9 | 791 | exit_cleanup(0); |
8d9dc9f9 | 792 | |
f3d6d480 | 793 | io_start_buffering_in(f_in); |
da3478b2 | 794 | |
f3d6d480 | 795 | send_files(f_in, f_out); |
f1e3656e | 796 | io_flush(FULL_FLUSH); |
33c4b445 | 797 | handle_stats(f_out); |
4e0fcd85 | 798 | if (protocol_version >= 24) |
bc40a305 | 799 | read_final_goodbye(f_in, f_out); |
f1e3656e | 800 | io_flush(FULL_FLUSH); |
7a6421fa | 801 | exit_cleanup(0); |
c627d613 AT |
802 | } |
803 | ||
804 | ||
f3d6d480 | 805 | static int do_recv(int f_in, int f_out, char *local_name) |
dc5ddbcc | 806 | { |
d186eb1a | 807 | int pid; |
84e6d6fd | 808 | int exit_code = 0; |
c70e07d9 | 809 | int error_pipe[2]; |
dc5ddbcc | 810 | |
bb6721dc WD |
811 | /* The receiving side mustn't obey this, or an existing symlink that |
812 | * points to an identical file won't be replaced by the referent. */ | |
01103e18 | 813 | copy_links = copy_dirlinks = copy_unsafe_links = 0; |
bb6721dc | 814 | |
1e1ca253 | 815 | #ifdef SUPPORT_HARD_LINKS |
d4d6646a | 816 | if (preserve_hard_links && !inc_recurse) |
da131912 | 817 | match_hard_links(first_flist); |
1e1ca253 | 818 | #endif |
dc5ddbcc | 819 | |
c70e07d9 | 820 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 821 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 822 | exit_cleanup(RERR_IPC); |
554e0a8d | 823 | } |
d9c7edf6 | 824 | |
3696674b WD |
825 | if (backup_dir) { |
826 | int ret = make_path(backup_dir_buf, MKP_DROP_NAME); /* drops trailing slash */ | |
827 | if (ret < 0) | |
828 | exit_cleanup(RERR_SYNTAX); | |
829 | if (ret) | |
830 | rprintf(FINFO, "Created backup_dir %s\n", backup_dir_buf); | |
4e9c7fae WD |
831 | else if (INFO_GTE(BACKUP, 1)) |
832 | rprintf(FINFO, "backup_dir is %s\n", backup_dir_buf); | |
3696674b WD |
833 | } |
834 | ||
f1e3656e | 835 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 836 | |
ba449e44 | 837 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 838 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
839 | exit_cleanup(RERR_IPC); |
840 | } | |
841 | ||
842 | if (pid == 0) { | |
554e0a8d | 843 | close(error_pipe[0]); |
3a69fad0 WD |
844 | if (f_in != f_out) |
845 | close(f_out); | |
41000dff | 846 | sock_f_out = -1; |
e08c9610 | 847 | |
554e0a8d | 848 | /* we can't let two processes write to the socket at one time */ |
f3d6d480 | 849 | io_end_multiplex_out(); |
554e0a8d AT |
850 | |
851 | /* set place to send errors */ | |
f1e3656e | 852 | set_msg_fd_out(error_pipe[1]); |
d8587b46 | 853 | io_start_multiplex_out(error_pipe[1]); |
554e0a8d | 854 | |
f3d6d480 | 855 | recv_files(f_in, local_name); |
f1e3656e | 856 | io_flush(FULL_FLUSH); |
33c4b445 | 857 | handle_stats(f_in); |
e08c9610 | 858 | |
951e826b WD |
859 | if (output_needs_newline) { |
860 | fputc('\n', stdout); | |
861 | output_needs_newline = 0; | |
862 | } | |
863 | ||
332cf6df | 864 | send_msg(MSG_DONE, "", 1, 0); |
a72ba0cf | 865 | write_varlong(error_pipe[1], stats.total_read, 3); |
f1e3656e | 866 | io_flush(FULL_FLUSH); |
4e0fcd85 | 867 | |
40df65fd WD |
868 | /* Handle any keep-alive packets from the post-processing work |
869 | * that the generator does. */ | |
4e0fcd85 | 870 | if (protocol_version >= 29) { |
051182cb | 871 | kluge_around_eof = -1; |
1a8e5c97 WD |
872 | |
873 | /* This should only get stopped via a USR2 signal. */ | |
bc40a305 | 874 | read_final_goodbye(f_in, f_out); |
1a8e5c97 | 875 | |
3485ae83 WD |
876 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
877 | who_am_i()); | |
1a8e5c97 | 878 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
879 | } |
880 | ||
9e0582f9 WD |
881 | /* Finally, we go to sleep until our parent kills us with a |
882 | * USR2 signal. We sleep for a short time, as on some OSes | |
883 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
884 | while (1) |
885 | msleep(20); | |
d186eb1a | 886 | } |
dc5ddbcc | 887 | |
b695f242 | 888 | am_generator = 1; |
f3d6d480 WD |
889 | |
890 | io_end_multiplex_in(); | |
e8a96e27 | 891 | if (write_batch && !am_server) |
b9f592fb | 892 | stop_write_batch(); |
b695f242 | 893 | |
554e0a8d | 894 | close(error_pipe[1]); |
3a69fad0 WD |
895 | if (f_in != f_out) |
896 | close(f_in); | |
41000dff | 897 | sock_f_in = -1; |
e1b3d5c4 | 898 | |
f3d6d480 | 899 | io_start_buffering_out(f_out); |
b3e10ed7 | 900 | |
f1e3656e | 901 | set_msg_fd_in(error_pipe[0]); |
d8587b46 | 902 | io_start_multiplex_in(error_pipe[0]); |
554e0a8d | 903 | |
da131912 WD |
904 | #ifdef SUPPORT_HARD_LINKS |
905 | if (preserve_hard_links && inc_recurse) { | |
906 | struct file_list *flist; | |
907 | for (flist = first_flist; flist; flist = flist->next) | |
908 | match_hard_links(flist); | |
909 | } | |
910 | #endif | |
911 | ||
f3d6d480 | 912 | generate_files(f_out, local_name); |
8d9dc9f9 | 913 | |
33c4b445 | 914 | handle_stats(-1); |
f1e3656e | 915 | io_flush(FULL_FLUSH); |
d04e9c51 | 916 | if (protocol_version >= 24) { |
8ada7518 | 917 | /* send a final goodbye message */ |
9ae7a2cd | 918 | write_ndx(f_out, NDX_DONE); |
8ada7518 | 919 | } |
f1e3656e | 920 | io_flush(FULL_FLUSH); |
8ada7518 | 921 | |
f1e3656e | 922 | set_msg_fd_in(-1); |
089a2435 | 923 | kill(pid, SIGUSR2); |
84e6d6fd WD |
924 | wait_process_with_flush(pid, &exit_code); |
925 | return exit_code; | |
dc5ddbcc AT |
926 | } |
927 | ||
f3d6d480 | 928 | static void do_server_recv(int f_in, int f_out, int argc, char *argv[]) |
c627d613 | 929 | { |
84e6d6fd | 930 | int exit_code; |
7a6421fa | 931 | struct file_list *flist; |
6c2e5b56 | 932 | char *local_name = NULL; |
951e826b | 933 | int negated_levels; |
07bff66f | 934 | |
eabc85ef | 935 | if (filesfrom_fd >= 0 && !msgs2stderr) { |
07bff66f | 936 | /* We can't mix messages with files-from data on the socket, |
951e826b WD |
937 | * so temporarily turn off info/debug messages. */ |
938 | negate_output_levels(); | |
939 | negated_levels = 1; | |
940 | } else | |
941 | negated_levels = 0; | |
f0fca04e | 942 | |
951e826b | 943 | if (DEBUG_GTE(RECV, 1)) { |
45e08edb WD |
944 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", |
945 | argc, (long)getpid()); | |
946 | } | |
09b7f5db | 947 | |
2adbcdc7 | 948 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
949 | rprintf(FERROR,"ERROR: module is read only\n"); |
950 | exit_cleanup(RERR_SYNTAX); | |
951 | return; | |
952 | } | |
953 | ||
7a6421fa | 954 | if (argc > 0) { |
a1018691 | 955 | char *dir = argv[0]; |
7a6421fa AT |
956 | argc--; |
957 | argv++; | |
29a89172 WD |
958 | if (!am_daemon && !change_dir(dir, CD_NORMAL)) { |
959 | rsyserr(FERROR, errno, "change_dir#4 %s failed", | |
982e05bb | 960 | full_fname(dir)); |
65417579 | 961 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 962 | } |
7a6421fa | 963 | } |
c627d613 | 964 | |
f3d6d480 | 965 | if (protocol_version >= 30) |
d8587b46 | 966 | io_start_multiplex_in(f_in); |
f3d6d480 WD |
967 | else |
968 | io_start_buffering_in(f_in); | |
57dee64e | 969 | recv_filter_list(f_in); |
c627d613 | 970 | |
7c2a9e76 | 971 | if (filesfrom_fd >= 0) { |
07bff66f WD |
972 | /* We need to send the files-from names to the sender at the |
973 | * same time that we receive the file-list from them, so we | |
974 | * need the IO routines to automatically write out the names | |
975 | * onto our f_out socket as we read the file-list. This | |
976 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
977 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
978 | filesfrom_fd = -1; | |
979 | } | |
980 | ||
b9f592fb | 981 | flist = recv_file_list(f_in); |
4c36a13e AT |
982 | if (!flist) { |
983 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 984 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 985 | } |
3ea6e0e7 | 986 | if (inc_recurse && file_total == 1) |
f3d6d480 | 987 | recv_additional_file_list(f_in); |
951e826b WD |
988 | |
989 | if (negated_levels) | |
990 | negate_output_levels(); | |
d9c7edf6 | 991 | |
29fad7a3 | 992 | if (argc > 0) |
7a6421fa | 993 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 994 | |
7c58c991 WD |
995 | /* Now that we know what our destination directory turned out to be, |
996 | * we can sanitize the --link-/copy-/compare-dest args correctly. */ | |
997 | if (sanitize_paths) { | |
ce27f36d WD |
998 | char **dir_p; |
999 | for (dir_p = basis_dir; *dir_p; dir_p++) | |
d48810ba | 1000 | *dir_p = sanitize_path(NULL, *dir_p, NULL, curr_dir_depth, SP_DEFAULT); |
ce27f36d | 1001 | if (partial_dir) |
d48810ba | 1002 | partial_dir = sanitize_path(NULL, partial_dir, NULL, curr_dir_depth, SP_DEFAULT); |
c2c8db91 | 1003 | } |
ce27f36d | 1004 | check_alt_basis_dirs(); |
615a5415 | 1005 | |
819bfe45 | 1006 | if (daemon_filter_list.head) { |
a1018691 | 1007 | char **dir_p; |
7b6c5c77 | 1008 | filter_rule_list *elp = &daemon_filter_list; |
c2c8db91 | 1009 | |
a1018691 WD |
1010 | for (dir_p = basis_dir; *dir_p; dir_p++) { |
1011 | char *dir = *dir_p; | |
1012 | if (*dir == '/') | |
1013 | dir += module_dirlen; | |
1df02d13 | 1014 | if (check_filter(elp, FLOG, dir, 1) < 0) |
c2c8db91 WD |
1015 | goto options_rejected; |
1016 | } | |
1017 | if (partial_dir && *partial_dir == '/' | |
1df02d13 | 1018 | && check_filter(elp, FLOG, partial_dir + module_dirlen, 1) < 0) { |
c2c8db91 WD |
1019 | options_rejected: |
1020 | rprintf(FERROR, | |
1021 | "Your options have been rejected by the server.\n"); | |
1022 | exit_cleanup(RERR_SYNTAX); | |
1023 | } | |
7c58c991 WD |
1024 | } |
1025 | ||
f3d6d480 | 1026 | exit_code = do_recv(f_in, f_out, local_name); |
84e6d6fd | 1027 | exit_cleanup(exit_code); |
c627d613 AT |
1028 | } |
1029 | ||
1030 | ||
734a94a2 | 1031 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
1032 | { |
1033 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 1034 | return 0; |
25d34a5c MP |
1035 | } |
1036 | ||
1037 | ||
9486289c | 1038 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 1039 | { |
f0359dd0 AT |
1040 | set_nonblocking(f_in); |
1041 | set_nonblocking(f_out); | |
1042 | ||
da3478b2 WD |
1043 | io_set_sock_fds(f_in, f_out); |
1044 | setup_protocol(f_out, f_in); | |
1045 | ||
d04e9c51 | 1046 | if (protocol_version >= 23) |
d8587b46 | 1047 | io_start_multiplex_out(f_out); |
7a6421fa | 1048 | |
7a6421fa | 1049 | if (am_sender) { |
83926d3c | 1050 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 | 1051 | if (need_messages_from_generator) |
d8587b46 | 1052 | io_start_multiplex_in(f_in); |
7842418b | 1053 | recv_filter_list(f_in); |
7a6421fa | 1054 | do_server_sender(f_in, f_out, argc, argv); |
07613def | 1055 | } else |
7a6421fa | 1056 | do_server_recv(f_in, f_out, argc, argv); |
7a6421fa | 1057 | exit_cleanup(0); |
366345fe AT |
1058 | } |
1059 | ||
0ba48136 MP |
1060 | |
1061 | /* | |
1062 | * This is called once the connection has been negotiated. It is used | |
1063 | * for rsyncd, remote-shell, and local connections. | |
1064 | */ | |
19b27a48 | 1065 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 1066 | { |
088aac85 | 1067 | struct file_list *flist = NULL; |
84e6d6fd | 1068 | int exit_code = 0, exit_code2 = 0; |
9486289c | 1069 | char *local_name = NULL; |
19b27a48 AT |
1070 | |
1071 | cleanup_child_pid = pid; | |
67a28eb2 | 1072 | if (!read_batch) { |
b9f592fb WD |
1073 | set_nonblocking(f_in); |
1074 | set_nonblocking(f_out); | |
1075 | } | |
f0359dd0 | 1076 | |
da3478b2 | 1077 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
1078 | setup_protocol(f_out,f_in); |
1079 | ||
18882701 WD |
1080 | /* We set our stderr file handle to blocking because ssh might have |
1081 | * set it to non-blocking. This can be particularly troublesome if | |
1082 | * stderr is a clone of stdout, because ssh would have set our stdout | |
1083 | * to non-blocking at the same time (which can easily cause us to lose | |
1084 | * output from our print statements). This kluge shouldn't cause ssh | |
1085 | * any problems for how we use it. Note also that we delayed setting | |
1086 | * this until after the above protocol setup so that we know for sure | |
1087 | * that ssh is done twiddling its file descriptors. */ | |
1088 | set_blocking(STDERR_FILENO); | |
1089 | ||
9486289c | 1090 | if (am_sender) { |
83926d3c | 1091 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
886df221 WD |
1092 | |
1093 | if (always_checksum | |
1094 | && (log_format_has(stdout_format, 'C') | |
1095 | || log_format_has(logfile_format, 'C'))) | |
1096 | sender_keeps_checksum = 1; | |
1097 | ||
f3d6d480 | 1098 | if (protocol_version >= 30) |
d8587b46 | 1099 | io_start_multiplex_out(f_out); |
f3d6d480 WD |
1100 | else |
1101 | io_start_buffering_out(f_out); | |
860236bf | 1102 | if (!filesfrom_host) |
a0a33ee5 | 1103 | set_msg_fd_in(f_in); |
57dee64e | 1104 | send_filter_list(f_out); |
860236bf | 1105 | if (filesfrom_host) |
7c2a9e76 | 1106 | filesfrom_fd = f_in; |
b9f592fb | 1107 | |
e8a96e27 | 1108 | if (write_batch && !am_server) |
b9f592fb | 1109 | start_write_batch(f_out); |
a00628b3 | 1110 | flist = send_file_list(f_out, argc, argv); |
951e826b | 1111 | if (DEBUG_GTE(FLIST, 3)) |
9486289c | 1112 | rprintf(FINFO,"file list sent\n"); |
f3d6d480 WD |
1113 | |
1114 | if (protocol_version >= 23) | |
d8587b46 | 1115 | io_start_multiplex_in(f_in); |
e1b3d5c4 | 1116 | |
f1e3656e | 1117 | io_flush(NORMAL_FLUSH); |
f3d6d480 | 1118 | send_files(f_in, f_out); |
f1e3656e | 1119 | io_flush(FULL_FLUSH); |
33c4b445 | 1120 | handle_stats(-1); |
4e0fcd85 | 1121 | if (protocol_version >= 24) |
bc40a305 | 1122 | read_final_goodbye(f_in, f_out); |
9486289c | 1123 | if (pid != -1) { |
951e826b | 1124 | if (DEBUG_GTE(EXIT, 2)) |
08a740ff | 1125 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 1126 | io_flush(FULL_FLUSH); |
84e6d6fd | 1127 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1128 | } |
33c4b445 | 1129 | output_summary(); |
c87ae64a | 1130 | io_flush(FULL_FLUSH); |
84e6d6fd | 1131 | exit_cleanup(exit_code); |
9486289c | 1132 | } |
f7632fc6 | 1133 | |
f3d6d480 WD |
1134 | if (!read_batch) { |
1135 | if (protocol_version >= 23) | |
d8587b46 | 1136 | io_start_multiplex_in(f_in); |
f3d6d480 | 1137 | if (need_messages_from_generator) |
d8587b46 | 1138 | io_start_multiplex_out(f_out); |
f3d6d480 | 1139 | } |
bf26aa22 | 1140 | |
57dee64e | 1141 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 1142 | |
7c2a9e76 WD |
1143 | if (filesfrom_fd >= 0) { |
1144 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
1145 | filesfrom_fd = -1; | |
1146 | } | |
1147 | ||
e8a96e27 | 1148 | if (write_batch && !am_server) |
b9f592fb | 1149 | start_write_batch(f_in); |
9486289c | 1150 | flist = recv_file_list(f_in); |
3ea6e0e7 | 1151 | if (inc_recurse && file_total == 1) |
f3d6d480 | 1152 | recv_additional_file_list(f_in); |
d9c7edf6 | 1153 | |
9decb4d2 | 1154 | if (flist && flist->used > 0) { |
9d19f8a5 | 1155 | local_name = get_local_name(flist, argv[0]); |
d9c7edf6 | 1156 | |
ce27f36d | 1157 | check_alt_basis_dirs(); |
615a5415 | 1158 | |
f3d6d480 | 1159 | exit_code2 = do_recv(f_in, f_out, local_name); |
9d19f8a5 WD |
1160 | } else { |
1161 | handle_stats(-1); | |
1162 | output_summary(); | |
1163 | } | |
d9c7edf6 | 1164 | |
9486289c | 1165 | if (pid != -1) { |
951e826b | 1166 | if (DEBUG_GTE(RECV, 1)) |
08a740ff | 1167 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 1168 | io_flush(FULL_FLUSH); |
84e6d6fd | 1169 | wait_process_with_flush(pid, &exit_code); |
9486289c | 1170 | } |
d9c7edf6 | 1171 | |
84e6d6fd | 1172 | return MAX(exit_code, exit_code2); |
9486289c AT |
1173 | } |
1174 | ||
07613def | 1175 | static int copy_argv(char *argv[]) |
7169bb4a MP |
1176 | { |
1177 | int i; | |
1178 | ||
1179 | for (i = 0; argv[i]; i++) { | |
1180 | if (!(argv[i] = strdup(argv[i]))) { | |
1181 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
1182 | __FILE__, __LINE__); | |
1183 | return RERR_MALLOC; | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | ||
c1a04ecb | 1191 | /** |
0ba48136 MP |
1192 | * Start a client for either type of remote connection. Work out |
1193 | * whether the arguments request a remote shell or rsyncd connection, | |
1194 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
1195 | * |
1196 | * Calls either start_socket_client (for sockets) or do_cmd and | |
1197 | * client_run (for ssh). | |
c1a04ecb | 1198 | **/ |
fc8a6b97 | 1199 | static int start_client(int argc, char *argv[]) |
5d6bcd44 | 1200 | { |
f7e5068d WD |
1201 | char *p, *shell_machine = NULL, *shell_user = NULL; |
1202 | char **remote_argv; | |
1203 | int remote_argc; | |
1204 | int f_in, f_out; | |
19b27a48 AT |
1205 | int ret; |
1206 | pid_t pid; | |
7169bb4a MP |
1207 | |
1208 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 1209 | * command line. */ |
f7e5068d WD |
1210 | if ((ret = copy_argv(argv)) != 0) |
1211 | return ret; | |
5d6bcd44 | 1212 | |
d16c245f | 1213 | if (!read_batch) { /* for read_batch, NO source is specified */ |
f7e5068d WD |
1214 | char *path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
1215 | if (path) { /* source is remote */ | |
a960239f WD |
1216 | char *dummy_host; |
1217 | int dummy_port = 0; | |
f7e5068d WD |
1218 | *argv = path; |
1219 | remote_argv = argv; | |
1220 | remote_argc = argc; | |
1221 | argv += argc - 1; | |
1222 | if (argc == 1 || **argv == ':') | |
1223 | argc = 0; /* no dest arg */ | |
a960239f | 1224 | else if (check_for_hostspec(*argv, &dummy_host, &dummy_port)) { |
9425918d WD |
1225 | rprintf(FERROR, |
1226 | "The source and destination cannot both be remote.\n"); | |
1227 | exit_cleanup(RERR_SYNTAX); | |
f7e5068d WD |
1228 | } else { |
1229 | remote_argc--; /* don't count dest */ | |
1230 | argc = 1; | |
9425918d | 1231 | } |
860236bf WD |
1232 | if (filesfrom_host && *filesfrom_host |
1233 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 1234 | rprintf(FERROR, |
50b31539 | 1235 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1236 | exit_cleanup(RERR_SYNTAX); |
1237 | } | |
42ccb4c0 | 1238 | am_sender = 0; |
e208631a WD |
1239 | if (rsync_port) |
1240 | daemon_over_rsh = shell_cmd ? 1 : -1; | |
42ccb4c0 WD |
1241 | } else { /* source is local, check dest arg */ |
1242 | am_sender = 1; | |
1243 | ||
f7e5068d | 1244 | if (argc > 1) { |
ee8e2b15 | 1245 | p = argv[--argc]; |
f7e5068d WD |
1246 | remote_argv = argv + argc; |
1247 | } else { | |
1248 | static char *dotarg[1] = { "." }; | |
1249 | p = dotarg[0]; | |
1250 | remote_argv = dotarg; | |
d9c7edf6 | 1251 | } |
f7e5068d | 1252 | remote_argc = 1; |
a125c82a | 1253 | |
f7e5068d WD |
1254 | path = check_for_hostspec(p, &shell_machine, &rsync_port); |
1255 | if (path && filesfrom_host && *filesfrom_host | |
860236bf | 1256 | && strcmp(filesfrom_host, shell_machine) != 0) { |
7c2a9e76 | 1257 | rprintf(FERROR, |
50b31539 | 1258 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
1259 | exit_cleanup(RERR_SYNTAX); |
1260 | } | |
f7e5068d | 1261 | if (!path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 1262 | local_server = 1; |
860236bf | 1263 | if (filesfrom_host) { |
7c2a9e76 | 1264 | rprintf(FERROR, |
50b31539 | 1265 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
1266 | exit_cleanup(RERR_SYNTAX); |
1267 | } | |
860236bf | 1268 | shell_machine = NULL; |
f7e5068d WD |
1269 | } else { /* hostspec was found, so dest is remote */ |
1270 | argv[argc] = path; | |
1271 | if (rsync_port) | |
1272 | daemon_over_rsh = shell_cmd ? 1 : -1; | |
1273 | } | |
5d6bcd44 | 1274 | } |
d16c245f | 1275 | } else { /* read_batch */ |
d9c7edf6 | 1276 | local_server = 1; |
f7e5068d | 1277 | if (check_for_hostspec(argv[argc-1], &shell_machine, &rsync_port)) { |
b9f592fb WD |
1278 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
1279 | exit_cleanup(RERR_SYNTAX); | |
1280 | } | |
0a23e336 WD |
1281 | remote_argv = argv += argc - 1; |
1282 | remote_argc = argc = 1; | |
6902ed17 MP |
1283 | } |
1284 | ||
f7e5068d | 1285 | if (am_sender) { |
a960239f WD |
1286 | char *dummy_host; |
1287 | int dummy_port = rsync_port; | |
f7e5068d WD |
1288 | int i; |
1289 | /* For local source, extra source args must not have hostspec. */ | |
1290 | for (i = 1; i < argc; i++) { | |
a960239f | 1291 | if (check_for_hostspec(argv[i], &dummy_host, &dummy_port)) { |
f7e5068d WD |
1292 | rprintf(FERROR, "Unexpected remote arg: %s\n", argv[i]); |
1293 | exit_cleanup(RERR_SYNTAX); | |
1294 | } | |
1295 | } | |
1296 | } else { | |
a960239f WD |
1297 | char *dummy_host; |
1298 | int dummy_port = rsync_port; | |
f7e5068d | 1299 | int i; |
a960239f WD |
1300 | /* For remote source, any extra source args must have either |
1301 | * the same hostname or an empty hostname. */ | |
f7e5068d | 1302 | for (i = 1; i < remote_argc; i++) { |
a960239f WD |
1303 | char *arg = check_for_hostspec(remote_argv[i], &dummy_host, &dummy_port); |
1304 | if (!arg) { | |
f7e5068d WD |
1305 | rprintf(FERROR, "Unexpected local arg: %s\n", remote_argv[i]); |
1306 | rprintf(FERROR, "If arg is a remote file/dir, prefix it with a colon (:).\n"); | |
1307 | exit_cleanup(RERR_SYNTAX); | |
1308 | } | |
a960239f WD |
1309 | if (*dummy_host && strcmp(dummy_host, shell_machine) != 0) { |
1310 | rprintf(FERROR, "All source args must come from the same machine.\n"); | |
1311 | exit_cleanup(RERR_SYNTAX); | |
1312 | } | |
1313 | if (rsync_port != dummy_port) { | |
1314 | if (!rsync_port || !dummy_port) | |
1315 | rprintf(FERROR, "All source args must use the same hostspec format.\n"); | |
1316 | else | |
1317 | rprintf(FERROR, "All source args must use the same port number.\n"); | |
1318 | exit_cleanup(RERR_SYNTAX); | |
1319 | } | |
1320 | remote_argv[i] = arg; | |
f7e5068d | 1321 | } |
e208631a WD |
1322 | } |
1323 | ||
1324 | if (daemon_over_rsh < 0) | |
f7e5068d | 1325 | return start_socket_client(shell_machine, remote_argc, remote_argv, argc, argv); |
e208631a | 1326 | |
a39da29a | 1327 | if (password_file && !daemon_over_rsh) { |
327c559a WD |
1328 | rprintf(FERROR, "The --password-file option may only be " |
1329 | "used when accessing an rsync daemon.\n"); | |
a39da29a WD |
1330 | exit_cleanup(RERR_SYNTAX); |
1331 | } | |
1332 | ||
ba22c9e2 WD |
1333 | if (connect_timeout) { |
1334 | rprintf(FERROR, "The --contimeout option may only be " | |
1335 | "used when connecting to an rsync daemon.\n"); | |
1336 | exit_cleanup(RERR_SYNTAX); | |
1337 | } | |
1338 | ||
5d6bcd44 | 1339 | if (shell_machine) { |
6fc048f4 | 1340 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
1341 | if (p) { |
1342 | *p = 0; | |
1343 | shell_user = shell_machine; | |
1344 | shell_machine = p+1; | |
1345 | } | |
1346 | } | |
1347 | ||
951e826b | 1348 | if (DEBUG_GTE(CMD, 2)) { |
9486289c | 1349 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
f7e5068d WD |
1350 | NS(shell_cmd), NS(shell_machine), NS(shell_user), |
1351 | remote_argv ? NS(remote_argv[0]) : ""); | |
5d6bcd44 | 1352 | } |
d9c7edf6 | 1353 | |
f7e5068d WD |
1354 | pid = do_cmd(shell_cmd, shell_machine, shell_user, remote_argv, remote_argc, |
1355 | &f_in, &f_out); | |
75aeac44 WD |
1356 | |
1357 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1358 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1359 | if (daemon_over_rsh) { |
1360 | int tmpret; | |
f7e5068d | 1361 | tmpret = start_inband_exchange(f_in, f_out, shell_user, remote_argc, remote_argv); |
75aeac44 WD |
1362 | if (tmpret < 0) |
1363 | return tmpret; | |
1364 | } | |
1365 | ||
fc8a6b97 AT |
1366 | ret = client_run(f_in, f_out, pid, argc, argv); |
1367 | ||
1368 | fflush(stdout); | |
1369 | fflush(stderr); | |
1370 | ||
1371 | return ret; | |
5d6bcd44 AT |
1372 | } |
1373 | ||
366345fe | 1374 | |
067669da WD |
1375 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1376 | { | |
6bf32edb | 1377 | exit_cleanup(RERR_SIGNAL1); |
82306bf6 AT |
1378 | } |
1379 | ||
067669da WD |
1380 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1381 | { | |
33c4b445 WD |
1382 | if (!am_server) |
1383 | output_summary(); | |
40df65fd | 1384 | close_all(); |
3f0211b6 | 1385 | if (got_xfer_error) |
33c4b445 | 1386 | _exit(RERR_PARTIAL); |
8b35435f AT |
1387 | _exit(0); |
1388 | } | |
1389 | ||
6d59ac19 | 1390 | RETSIGTYPE remember_children(UNUSED(int val)) |
067669da | 1391 | { |
029c1713 | 1392 | #ifdef WNOHANG |
ee7118a8 DD |
1393 | int cnt, status; |
1394 | pid_t pid; | |
1395 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1396 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1397 | * out we're instead saving the child exit statuses for later use. |
1398 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1399 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1400 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1401 | /* save the child's exit status */ |
1402 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1403 | if (pid_stat_table[cnt].pid == 0) { | |
1404 | pid_stat_table[cnt].pid = pid; | |
1405 | pid_stat_table[cnt].status = status; | |
1406 | break; | |
1407 | } | |
1408 | } | |
ee7118a8 | 1409 | } |
029c1713 | 1410 | #endif |
8261af74 | 1411 | #ifndef HAVE_SIGACTION |
6d59ac19 | 1412 | signal(SIGCHLD, remember_children); |
60ee01f5 | 1413 | #endif |
19b27a48 AT |
1414 | } |
1415 | ||
c0531332 MP |
1416 | |
1417 | /** | |
1418 | * This routine catches signals and tries to send them to gdb. | |
1419 | * | |
1420 | * Because it's called from inside a signal handler it ought not to | |
1421 | * use too many library routines. | |
1422 | * | |
1423 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1424 | * debugging without easy access to X. Perhaps use an environment | |
1425 | * variable, or just call a script? | |
1426 | * | |
1427 | * @todo The /proc/ magic probably only works on Linux (and | |
1428 | * Solaris?) Can we be more portable? | |
1429 | **/ | |
1430 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1431 | const char *get_panic_action(void) |
1432 | { | |
1433 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1434 | ||
1435 | if (cmd_fmt) | |
1436 | return cmd_fmt; | |
1437 | else | |
1438 | return "xterm -display :0 -T Panic -n Panic " | |
1439 | "-e gdb /proc/%d/exe %d"; | |
1440 | } | |
1441 | ||
1442 | ||
9fb3f7a9 MP |
1443 | /** |
1444 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1445 | * | |
1446 | * This signal handler is only installed if we were configured with | |
1447 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1448 | * should just look at the environment variable, but I'm a bit leery | |
1449 | * of a signal sending us into a busy loop. | |
1450 | **/ | |
067669da | 1451 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1452 | { |
1453 | char cmd_buf[300]; | |
1454 | int ret; | |
4fdc39dd | 1455 | |
83078af5 WD |
1456 | snprintf(cmd_buf, sizeof cmd_buf, get_panic_action(), |
1457 | getpid(), getpid()); | |
c0531332 MP |
1458 | |
1459 | /* Unless we failed to execute gdb, we allow the process to | |
1460 | * continue. I'm not sure if that's right. */ | |
1461 | ret = system(cmd_buf); | |
1462 | if (ret) | |
1463 | _exit(ret); | |
1464 | } | |
1465 | #endif | |
1466 | ||
1467 | ||
5d6bcd44 | 1468 | int main(int argc,char *argv[]) |
d9c7edf6 | 1469 | { |
ff81e809 | 1470 | int ret; |
66a9dc96 WD |
1471 | int orig_argc = argc; |
1472 | char **orig_argv = argv; | |
8261af74 WD |
1473 | #ifdef HAVE_SIGACTION |
1474 | # ifdef HAVE_SIGPROCMASK | |
60ee01f5 | 1475 | sigset_t sigmask; |
5d6bcd44 | 1476 | |
60ee01f5 | 1477 | sigemptyset(&sigmask); |
8261af74 | 1478 | # endif |
60ee01f5 WD |
1479 | sigact.sa_flags = SA_NOCLDSTOP; |
1480 | #endif | |
1481 | SIGACTMASK(SIGUSR1, sigusr1_handler); | |
1482 | SIGACTMASK(SIGUSR2, sigusr2_handler); | |
6d59ac19 | 1483 | SIGACTMASK(SIGCHLD, remember_children); |
c0531332 | 1484 | #ifdef MAINTAINER_MODE |
60ee01f5 WD |
1485 | SIGACTMASK(SIGSEGV, rsync_panic_handler); |
1486 | SIGACTMASK(SIGFPE, rsync_panic_handler); | |
1487 | SIGACTMASK(SIGABRT, rsync_panic_handler); | |
1488 | SIGACTMASK(SIGBUS, rsync_panic_handler); | |
1489 | #endif | |
5d6bcd44 | 1490 | |
7a6421fa | 1491 | starttime = time(NULL); |
19284e2e | 1492 | our_uid = MY_UID(); |
3b83a220 | 1493 | our_gid = MY_GID(); |
19284e2e | 1494 | am_root = our_uid == 0; |
c627d613 | 1495 | |
a800434a AT |
1496 | memset(&stats, 0, sizeof(stats)); |
1497 | ||
df5e03da AT |
1498 | if (argc < 2) { |
1499 | usage(FERROR); | |
65417579 | 1500 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1501 | } |
1502 | ||
7a6421fa | 1503 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1504 | * carried across */ |
05278935 | 1505 | orig_umask = umask(0); |
5d6bcd44 | 1506 | |
eb598fac WD |
1507 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1508 | setlocale(LC_CTYPE, ""); | |
1509 | #endif | |
1510 | ||
53936ef9 | 1511 | if (!parse_arguments(&argc, (const char ***) &argv)) { |
d9c7edf6 WD |
1512 | /* FIXME: We ought to call the same error-handling |
1513 | * code here, rather than relying on getopt. */ | |
50135767 | 1514 | option_error(); |
65417579 | 1515 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1516 | } |
5d6bcd44 | 1517 | |
60ee01f5 WD |
1518 | SIGACTMASK(SIGINT, sig_int); |
1519 | SIGACTMASK(SIGHUP, sig_int); | |
1520 | SIGACTMASK(SIGTERM, sig_int); | |
1521 | #if defined HAVE_SIGACTION && HAVE_SIGPROCMASK | |
1522 | sigprocmask(SIG_UNBLOCK, &sigmask, NULL); | |
1523 | #endif | |
6b83141d | 1524 | |
34758d5c MP |
1525 | /* Ignore SIGPIPE; we consistently check error codes and will |
1526 | * see the EPIPE. */ | |
60ee01f5 | 1527 | SIGACTION(SIGPIPE, SIG_IGN); |
55e54e46 WD |
1528 | #ifdef SIGXFSZ |
1529 | SIGACTION(SIGXFSZ, SIG_IGN); | |
1530 | #endif | |
34758d5c | 1531 | |
29a89172 | 1532 | /* Initialize change_dir() here because on some old systems getcwd |
9af87151 WD |
1533 | * (implemented by forking "pwd" and reading its output) doesn't |
1534 | * work when there are other child processes. Also, on all systems | |
1535 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
29a89172 | 1536 | change_dir(NULL, CD_NORMAL); |
c226b7c2 | 1537 | |
44e9e221 WD |
1538 | init_flist(); |
1539 | ||
e8a96e27 | 1540 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1541 | if (write_batch) |
66a9dc96 | 1542 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1543 | |
dbbab0c4 WD |
1544 | if (read_batch && strcmp(batch_name, "-") == 0) |
1545 | batch_fd = STDIN_FILENO; | |
1546 | else { | |
1547 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1548 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1549 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1550 | } |
b9f592fb WD |
1551 | if (batch_fd < 0) { |
1552 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1553 | full_fname(batch_name)); |
b9f592fb WD |
1554 | exit_cleanup(RERR_FILEIO); |
1555 | } | |
9459290a WD |
1556 | if (read_batch) |
1557 | read_stream_flags(batch_fd); | |
e10664c5 WD |
1558 | else |
1559 | write_stream_flags(batch_fd); | |
6902ed17 | 1560 | } |
e8a96e27 WD |
1561 | if (write_batch < 0) |
1562 | dry_run = 1; | |
6902ed17 | 1563 | |
44c4492a WD |
1564 | if (am_server) { |
1565 | #ifdef ICONV_CONST | |
b61665d5 | 1566 | setup_iconv(); |
44c4492a WD |
1567 | #endif |
1568 | } else if (am_daemon) | |
7a6421fa | 1569 | return daemon_main(); |
f0fca04e | 1570 | |
f7e5068d WD |
1571 | if (am_server && protect_args) { |
1572 | char buf[MAXPATHLEN]; | |
71605b0f | 1573 | protect_args = 2; |
f7e5068d | 1574 | read_args(STDIN_FILENO, NULL, buf, sizeof buf, 1, &argv, &argc, NULL); |
53936ef9 | 1575 | if (!parse_arguments(&argc, (const char ***) &argv)) { |
f7e5068d WD |
1576 | option_error(); |
1577 | exit_cleanup(RERR_SYNTAX); | |
1578 | } | |
1579 | } | |
1580 | ||
08ac228f AT |
1581 | if (argc < 1) { |
1582 | usage(FERROR); | |
65417579 | 1583 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1584 | } |
1585 | ||
7a6421fa | 1586 | if (am_server) { |
f0359dd0 AT |
1587 | set_nonblocking(STDIN_FILENO); |
1588 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1589 | if (am_daemon) |
1590 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1591 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1592 | } | |
c627d613 | 1593 | |
ff81e809 | 1594 | ret = start_client(argc, argv); |
d9c7edf6 | 1595 | if (ret == -1) |
9098bbf3 | 1596 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1597 | else |
9098bbf3 MP |
1598 | exit_cleanup(ret); |
1599 | ||
0f5a04e3 | 1600 | return ret; |
c627d613 | 1601 | } |