Commit | Line | Data |
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0ba48136 | 1 | /* -*- c-file-style: "linux" -*- |
d9c7edf6 | 2 | |
50135767 | 3 | Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org> |
c627d613 | 4 | Copyright (C) Paul Mackerras 1996 |
e5a2b854 | 5 | Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org> |
d9c7edf6 | 6 | |
c627d613 AT |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
d9c7edf6 | 11 | |
c627d613 AT |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
d9c7edf6 | 16 | |
c627d613 AT |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
21 | ||
22 | #include "rsync.h" | |
d9401514 WD |
23 | #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H |
24 | #include <locale.h> | |
25 | #endif | |
c627d613 | 26 | |
50839b4b WD |
27 | extern int verbose; |
28 | extern int dry_run; | |
29 | extern int list_only; | |
32eda096 | 30 | extern int am_root; |
d9c7edf6 WD |
31 | extern int am_server; |
32 | extern int am_sender; | |
b695f242 | 33 | extern int am_generator; |
d9c7edf6 | 34 | extern int am_daemon; |
32eda096 | 35 | extern int blocking_io; |
bf26aa22 | 36 | extern int remove_sent_files; |
32eda096 | 37 | extern int daemon_over_rsh; |
bf26aa22 | 38 | extern int need_messages_from_generator; |
051182cb | 39 | extern int kluge_around_eof; |
32eda096 | 40 | extern int do_stats; |
32eda096 WD |
41 | extern int log_got_error; |
42 | extern int module_id; | |
43 | extern int orig_umask; | |
bb6721dc | 44 | extern int copy_links; |
83926d3c | 45 | extern int keep_dirlinks; |
32eda096 | 46 | extern int preserve_hard_links; |
d04e9c51 | 47 | extern int protocol_version; |
40e6752f | 48 | extern int always_checksum; |
32eda096 WD |
49 | extern int recurse; |
50 | extern int relative_paths; | |
51 | extern int rsync_port; | |
b1df18d7 | 52 | extern int whole_file; |
32eda096 WD |
53 | extern int read_batch; |
54 | extern int write_batch; | |
b9f592fb | 55 | extern int batch_fd; |
c0d8e84c | 56 | extern int batch_gen_fd; |
32eda096 WD |
57 | extern int filesfrom_fd; |
58 | extern pid_t cleanup_child_pid; | |
50839b4b | 59 | extern struct stats stats; |
860236bf | 60 | extern char *filesfrom_host; |
32eda096 WD |
61 | extern char *rsync_path; |
62 | extern char *shell_cmd; | |
9b3318b0 | 63 | extern char *batch_name; |
40e6752f | 64 | extern char curr_dir[MAXPATHLEN]; |
57dee64e WD |
65 | |
66 | int local_server = 0; | |
40e6752f | 67 | int pre_checksum = 0; |
a00628b3 | 68 | struct file_list *the_file_list; |
c627d613 | 69 | |
91c5833b WD |
70 | /* There's probably never more than at most 2 outstanding child processes, |
71 | * but set it higher, just in case. */ | |
84e6d6fd | 72 | #define MAXCHILDPROCS 7 |
ee7118a8 DD |
73 | |
74 | struct pid_status { | |
75 | pid_t pid; | |
84e6d6fd | 76 | int status; |
ee7118a8 DD |
77 | } pid_stat_table[MAXCHILDPROCS]; |
78 | ||
33c4b445 WD |
79 | static time_t starttime, endtime; |
80 | static int64 total_read, total_written; | |
81 | ||
e5a2b854 | 82 | static void show_malloc_stats(void); |
82980a23 | 83 | |
97d8e709 WD |
84 | /* Works like waitpid(), but if we already harvested the child pid in our |
85 | * sigchld_handler(), we succeed instead of returning an error. */ | |
86 | pid_t wait_process(pid_t pid, int *status_ptr, int flags) | |
82980a23 | 87 | { |
97d8e709 | 88 | pid_t waited_pid = waitpid(pid, status_ptr, flags); |
d9c7edf6 | 89 | |
6fb812f7 | 90 | if (waited_pid == -1 && errno == ECHILD) { |
97d8e709 WD |
91 | /* Status of requested child no longer available: check to |
92 | * see if it was processed by sigchld_handler(). */ | |
93 | int cnt; | |
84e6d6fd | 94 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
ee7118a8 | 95 | if (pid == pid_stat_table[cnt].pid) { |
97d8e709 | 96 | *status_ptr = pid_stat_table[cnt].status; |
ee7118a8 | 97 | pid_stat_table[cnt].pid = 0; |
97d8e709 | 98 | return pid; |
ee7118a8 DD |
99 | } |
100 | } | |
101 | } | |
102 | ||
97d8e709 WD |
103 | return waited_pid; |
104 | } | |
105 | ||
106 | /* Wait for a process to exit, calling io_flush while waiting. */ | |
84e6d6fd | 107 | static void wait_process_with_flush(pid_t pid, int *exit_code_ptr) |
97d8e709 WD |
108 | { |
109 | pid_t waited_pid; | |
110 | int status; | |
111 | ||
112 | while ((waited_pid = wait_process(pid, &status, WNOHANG)) == 0) { | |
113 | msleep(20); | |
114 | io_flush(FULL_FLUSH); | |
115 | } | |
116 | ||
d9c7edf6 WD |
117 | /* TODO: If the child exited on a signal, then log an |
118 | * appropriate error message. Perhaps we should also accept a | |
119 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 | 120 | * this to the caller so that they know something went wrong. */ |
84e6d6fd WD |
121 | if (waited_pid < 0) { |
122 | rsyserr(FERROR, errno, "waitpid"); | |
123 | *exit_code_ptr = RERR_WAITCHILD; | |
124 | } else if (!WIFEXITED(status)) { | |
40e6752f | 125 | #ifdef WCOREDUMP |
dbefb6b4 | 126 | if (WCOREDUMP(status)) |
84e6d6fd | 127 | *exit_code_ptr = RERR_CRASHED; |
40e6752f WD |
128 | else |
129 | #endif | |
130 | if (WIFSIGNALED(status)) | |
84e6d6fd | 131 | *exit_code_ptr = RERR_TERMINATED; |
dbefb6b4 | 132 | else |
84e6d6fd | 133 | *exit_code_ptr = RERR_WAITCHILD; |
dbefb6b4 | 134 | } else |
84e6d6fd | 135 | *exit_code_ptr = WEXITSTATUS(status); |
82980a23 AT |
136 | } |
137 | ||
b9f592fb WD |
138 | /* This function gets called from all 3 processes. We want the client side |
139 | * to actually output the text, but the sender is the only process that has | |
140 | * all the stats we need. So, if we're a client sender, we do the report. | |
141 | * If we're a server sender, we write the stats on the supplied fd. If | |
142 | * we're the client receiver we read the stats from the supplied fd and do | |
143 | * the report. All processes might also generate a set of debug stats, if | |
144 | * the verbose level is high enough (this is the only thing that the | |
145 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 146 | static void handle_stats(int f) |
c627d613 | 147 | { |
33c4b445 WD |
148 | endtime = time(NULL); |
149 | ||
b9f592fb | 150 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
151 | total_read = stats.total_read; |
152 | total_written = stats.total_written; | |
7a6421fa | 153 | |
7bb7058e | 154 | if (do_stats && verbose > 1) { |
5c15e29f | 155 | /* These come out from every process */ |
7bb7058e | 156 | show_malloc_stats(); |
86943126 | 157 | show_flist_stats(); |
5c15e29f MP |
158 | } |
159 | ||
e5fbaa71 S |
160 | if (am_generator) |
161 | return; | |
162 | ||
248fbb8c | 163 | if (am_daemon) { |
a9766ef1 | 164 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
165 | if (f == -1 || !am_sender) |
166 | return; | |
248fbb8c AT |
167 | } |
168 | ||
e19452a9 | 169 | if (am_server) { |
3e491682 | 170 | if (am_sender) { |
b9f592fb WD |
171 | write_longint(f, total_read); |
172 | write_longint(f, total_written); | |
173 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
174 | if (protocol_version >= 29) { |
175 | write_longint(f, stats.flist_buildtime); | |
176 | write_longint(f, stats.flist_xfertime); | |
177 | } | |
e19452a9 | 178 | } |
7a6421fa AT |
179 | return; |
180 | } | |
e19452a9 DD |
181 | |
182 | /* this is the client */ | |
d9c7edf6 | 183 | |
9d19f8a5 WD |
184 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
185 | ; | |
186 | else if (!am_sender) { | |
58c5c245 WD |
187 | /* Read the first two in opposite order because the meaning of |
188 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
189 | total_written = read_longint(f); |
190 | total_read = read_longint(f); | |
a800434a | 191 | stats.total_size = read_longint(f); |
f0f7e760 WD |
192 | if (protocol_version >= 29) { |
193 | stats.flist_buildtime = read_longint(f); | |
194 | stats.flist_xfertime = read_longint(f); | |
195 | } | |
e4676bb5 | 196 | } else if (write_batch) { |
b9f592fb WD |
197 | /* The --read-batch process is going to be a client |
198 | * receiver, so we need to give it the stats. */ | |
199 | write_longint(batch_fd, total_read); | |
200 | write_longint(batch_fd, total_written); | |
201 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
202 | if (protocol_version >= 29) { |
203 | write_longint(batch_fd, stats.flist_buildtime); | |
204 | write_longint(batch_fd, stats.flist_xfertime); | |
205 | } | |
a800434a | 206 | } |
e4676bb5 | 207 | } |
a800434a | 208 | |
e4676bb5 WD |
209 | static void output_summary(void) |
210 | { | |
a800434a | 211 | if (do_stats) { |
1f658d42 | 212 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
213 | rprintf(FINFO,"Number of files transferred: %d\n", |
214 | stats.num_transferred_files); | |
215 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
216 | (double)stats.total_size); | |
217 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
218 | (double)stats.total_transferred_size); | |
219 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
220 | (double)stats.literal_data); | |
221 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
222 | (double)stats.matched_data); | |
1f658d42 | 223 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
224 | if (stats.flist_buildtime) { |
225 | rprintf(FINFO, | |
226 | "File list generation time: %.3f seconds\n", | |
227 | (double)stats.flist_buildtime / 1000); | |
228 | rprintf(FINFO, | |
229 | "File list transfer time: %.3f seconds\n", | |
230 | (double)stats.flist_xfertime / 1000); | |
231 | } | |
4de2a174 | 232 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 233 | (double)total_written); |
4de2a174 | 234 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 235 | (double)total_read); |
7a6421fa | 236 | } |
d9c7edf6 | 237 | |
e19452a9 | 238 | if (verbose || do_stats) { |
b9f592fb | 239 | rprintf(FINFO, |
4de2a174 | 240 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb | 241 | (double)total_written, (double)total_read, |
33c4b445 | 242 | (total_written + total_read)/(0.5 + (endtime - starttime))); |
b9f592fb | 243 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", |
d9c7edf6 | 244 | (double)stats.total_size, |
b9f592fb | 245 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 246 | } |
fc8a6b97 AT |
247 | |
248 | fflush(stdout); | |
249 | fflush(stderr); | |
c627d613 AT |
250 | } |
251 | ||
252 | ||
e5a2b854 MP |
253 | /** |
254 | * If our C library can get malloc statistics, then show them to FINFO | |
255 | **/ | |
256 | static void show_malloc_stats(void) | |
257 | { | |
4f5b0756 | 258 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
259 | struct mallinfo mi; |
260 | ||
261 | mi = mallinfo(); | |
262 | ||
ce672562 | 263 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
264 | getpid(), am_server ? "server " : "", |
265 | am_daemon ? "daemon " : "", who_am_i()); | |
266 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
267 | (long)mi.arena); | |
268 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
269 | (long)mi.ordblks); | |
270 | rprintf(FINFO, " smblks: %10ld\n", | |
271 | (long)mi.smblks); | |
272 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
273 | (long)mi.hblks); | |
274 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
275 | (long)mi.hblkhd); | |
276 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
277 | (long)mi.arena + mi.hblkhd); | |
278 | rprintf(FINFO, " usmblks: %10ld\n", | |
279 | (long)mi.usmblks); | |
280 | rprintf(FINFO, " fsmblks: %10ld\n", | |
281 | (long)mi.fsmblks); | |
282 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
283 | (long)mi.uordblks); | |
284 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
285 | (long)mi.fordblks); | |
286 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
287 | (long)mi.keepcost); | |
e5a2b854 MP |
288 | #endif /* HAVE_MALLINFO */ |
289 | } | |
290 | ||
291 | ||
0882faa2 | 292 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
293 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
294 | int *f_in, int *f_out) | |
c627d613 | 295 | { |
6c2e5b56 | 296 | int i, argc = 0; |
887e553f | 297 | char *args[MAX_ARGS]; |
19b27a48 | 298 | pid_t ret; |
6c2e5b56 | 299 | char *tok, *dir = NULL; |
bb4aa89c | 300 | int dash_l_set = 0; |
366345fe | 301 | |
088aac85 | 302 | if (!read_batch && !local_server) { |
9af87151 | 303 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 304 | if (!cmd) |
9af87151 | 305 | cmd = rsh_env; |
366345fe AT |
306 | if (!cmd) |
307 | cmd = RSYNC_RSH; | |
308 | cmd = strdup(cmd); | |
d9c7edf6 | 309 | if (!cmd) |
366345fe AT |
310 | goto oom; |
311 | ||
887e553f | 312 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 | 313 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 314 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 315 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
316 | exit_cleanup(RERR_SYNTAX); |
317 | } | |
366345fe | 318 | args[argc++] = tok; |
887e553f | 319 | } |
c627d613 | 320 | |
d9c7edf6 | 321 | /* check to see if we've already been given '-l user' in |
9af87151 | 322 | * the remote-shell command */ |
bb4aa89c WD |
323 | for (i = 0; i < argc-1; i++) { |
324 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
325 | dash_l_set = 1; | |
326 | } | |
327 | ||
4f5b0756 | 328 | #ifdef HAVE_REMSH |
366345fe AT |
329 | /* remsh (on HPUX) takes the arguments the other way around */ |
330 | args[argc++] = machine; | |
bb4aa89c | 331 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
332 | args[argc++] = "-l"; |
333 | args[argc++] = user; | |
334 | } | |
7b8356d0 | 335 | #else |
bb4aa89c | 336 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
337 | args[argc++] = "-l"; |
338 | args[argc++] = user; | |
339 | } | |
340 | args[argc++] = machine; | |
7b8356d0 | 341 | #endif |
c627d613 | 342 | |
366345fe | 343 | args[argc++] = rsync_path; |
c627d613 | 344 | |
9af87151 | 345 | if (blocking_io < 0) { |
90e22f4b WD |
346 | char *cp; |
347 | if ((cp = strrchr(cmd, '/')) != NULL) | |
348 | cp++; | |
349 | else | |
350 | cp = cmd; | |
351 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
352 | blocking_io = 1; | |
66b71163 | 353 | } |
e384bfbd | 354 | |
93689aa5 | 355 | server_options(args,&argc); |
e7a392c7 WD |
356 | |
357 | if (argc >= MAX_ARGS - 2) { | |
358 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
359 | exit_cleanup(RERR_SYNTAX); | |
360 | } | |
366345fe | 361 | } |
c627d613 | 362 | |
366345fe | 363 | args[argc++] = "."; |
76076c4b | 364 | |
d9c7edf6 | 365 | if (!daemon_over_rsh && path && *path) |
366345fe | 366 | args[argc++] = path; |
c627d613 | 367 | |
366345fe | 368 | args[argc] = NULL; |
c627d613 | 369 | |
366345fe | 370 | if (verbose > 3) { |
9486289c | 371 | rprintf(FINFO,"cmd="); |
e7a392c7 | 372 | for (i = 0; i < argc; i++) |
71903f60 | 373 | rprintf(FINFO, "%s ", safe_fname(args[i])); |
9486289c | 374 | rprintf(FINFO,"\n"); |
366345fe AT |
375 | } |
376 | ||
c0d8e84c WD |
377 | if (read_batch) { |
378 | int from_gen_pipe[2]; | |
379 | if (fd_pair(from_gen_pipe) < 0) { | |
380 | rsyserr(FERROR, errno, "pipe"); | |
381 | exit_cleanup(RERR_IPC); | |
382 | } | |
383 | batch_gen_fd = from_gen_pipe[0]; | |
384 | *f_out = from_gen_pipe[1]; | |
385 | *f_in = batch_fd; | |
386 | ret = -1; /* no child pid */ | |
387 | } else if (local_server) { | |
b1df18d7 WD |
388 | /* If the user didn't request --[no-]whole-file, force |
389 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 390 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 391 | whole_file = 1; |
25d34a5c | 392 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 393 | } else |
366345fe | 394 | ret = piped_child(args,f_in,f_out); |
c627d613 | 395 | |
3a69fad0 WD |
396 | if (dir) |
397 | free(dir); | |
82306bf6 | 398 | |
366345fe | 399 | return ret; |
c627d613 AT |
400 | |
401 | oom: | |
366345fe AT |
402 | out_of_memory("do_cmd"); |
403 | return 0; /* not reached */ | |
c627d613 AT |
404 | } |
405 | ||
406 | ||
c627d613 AT |
407 | static char *get_local_name(struct file_list *flist,char *name) |
408 | { | |
7a6421fa | 409 | STRUCT_STAT st; |
87cc45e1 | 410 | int e; |
c627d613 | 411 | |
c95da96a | 412 | if (verbose > 2) |
d9c7edf6 | 413 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
414 | flist->count, NS(name)); |
415 | ||
d9c7edf6 | 416 | if (!name) |
1f0610ef | 417 | return NULL; |
c95da96a | 418 | |
1ff5450d AT |
419 | if (do_stat(name,&st) == 0) { |
420 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 421 | if (!push_dir(name)) { |
982e05bb WD |
422 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
423 | full_fname(name)); | |
65417579 | 424 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
425 | } |
426 | return NULL; | |
427 | } | |
428 | if (flist->count > 1) { | |
429 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 430 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
431 | } |
432 | return name; | |
433 | } | |
434 | ||
87cc45e1 | 435 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
436 | return name; |
437 | ||
1ff5450d | 438 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 439 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 440 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
441 | } |
442 | if (verbose > 0) | |
71903f60 | 443 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
444 | |
445 | if (dry_run) { | |
446 | dry_run++; | |
447 | return NULL; | |
1ff5450d AT |
448 | } |
449 | ||
59187666 | 450 | if (!push_dir(name)) { |
982e05bb WD |
451 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
452 | full_fname(name)); | |
65417579 | 453 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
454 | } |
455 | ||
456 | return NULL; | |
c627d613 AT |
457 | } |
458 | ||
459 | ||
1a8e5c97 | 460 | /* This is only called by the sender. */ |
3485ae83 | 461 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 462 | { |
1a8e5c97 WD |
463 | int i; |
464 | ||
465 | if (protocol_version < 29) | |
466 | i = read_int(f_in); | |
467 | else { | |
3485ae83 | 468 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
469 | && read_shortint(f_in) == ITEM_IS_NEW) { |
470 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 471 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
472 | write_shortint(f_out, ITEM_IS_NEW); |
473 | } | |
4e0fcd85 WD |
474 | } |
475 | ||
1a8e5c97 | 476 | if (i != -1) { |
c7791b8c WD |
477 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
478 | i, who_am_i()); | |
1a8e5c97 | 479 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
480 | } |
481 | } | |
482 | ||
483 | ||
9486289c | 484 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 485 | { |
7a6421fa AT |
486 | struct file_list *flist; |
487 | char *dir = argv[0]; | |
c627d613 | 488 | |
45e08edb WD |
489 | if (verbose > 2) { |
490 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
491 | (long)getpid()); | |
492 | } | |
d9c7edf6 | 493 | |
2adbcdc7 | 494 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
495 | rprintf(FERROR, "ERROR: module is write only\n"); |
496 | exit_cleanup(RERR_SYNTAX); | |
497 | return; | |
498 | } | |
bf26aa22 WD |
499 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
500 | rprintf(FERROR, | |
501 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
502 | exit_cleanup(RERR_SYNTAX); | |
503 | return; | |
504 | } | |
7a92ded3 | 505 | |
59187666 | 506 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
507 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
508 | full_fname(dir)); | |
65417579 | 509 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
510 | } |
511 | argc--; | |
512 | argv++; | |
d9c7edf6 | 513 | |
48a1ff0d | 514 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 515 | argc = 1; |
7a6421fa AT |
516 | argv--; |
517 | argv[0] = "."; | |
518 | } | |
d9c7edf6 | 519 | |
7a6421fa | 520 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
521 | if (!flist || flist->count == 0) { |
522 | exit_cleanup(0); | |
523 | } | |
a00628b3 | 524 | the_file_list = flist; |
8d9dc9f9 | 525 | |
da3478b2 WD |
526 | io_start_buffering_in(); |
527 | io_start_buffering_out(); | |
528 | ||
7a6421fa | 529 | send_files(flist,f_out,f_in); |
f1e3656e | 530 | io_flush(FULL_FLUSH); |
33c4b445 | 531 | handle_stats(f_out); |
4e0fcd85 | 532 | if (protocol_version >= 24) |
3485ae83 | 533 | read_final_goodbye(f_in, f_out); |
f1e3656e | 534 | io_flush(FULL_FLUSH); |
7a6421fa | 535 | exit_cleanup(0); |
c627d613 AT |
536 | } |
537 | ||
538 | ||
dc5ddbcc AT |
539 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
540 | { | |
d186eb1a | 541 | int pid; |
84e6d6fd | 542 | int exit_code = 0; |
c70e07d9 | 543 | int error_pipe[2]; |
dc5ddbcc | 544 | |
bb6721dc WD |
545 | /* The receiving side mustn't obey this, or an existing symlink that |
546 | * points to an identical file won't be replaced by the referent. */ | |
547 | copy_links = 0; | |
548 | ||
d186eb1a | 549 | if (preserve_hard_links) |
3485ae83 | 550 | init_hard_links(); |
dc5ddbcc | 551 | |
c70e07d9 | 552 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 553 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 554 | exit_cleanup(RERR_IPC); |
554e0a8d | 555 | } |
d9c7edf6 | 556 | |
f1e3656e | 557 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 558 | |
ba449e44 | 559 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 560 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
561 | exit_cleanup(RERR_IPC); |
562 | } | |
563 | ||
564 | if (pid == 0) { | |
554e0a8d | 565 | close(error_pipe[0]); |
3a69fad0 WD |
566 | if (f_in != f_out) |
567 | close(f_out); | |
e08c9610 | 568 | |
554e0a8d | 569 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 570 | close_multiplexing_out(); |
554e0a8d AT |
571 | |
572 | /* set place to send errors */ | |
f1e3656e | 573 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 574 | |
c70e07d9 | 575 | recv_files(f_in, flist, local_name); |
f1e3656e | 576 | io_flush(FULL_FLUSH); |
33c4b445 | 577 | handle_stats(f_in); |
e08c9610 | 578 | |
f1e3656e WD |
579 | send_msg(MSG_DONE, "", 0); |
580 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 581 | |
40df65fd WD |
582 | /* Handle any keep-alive packets from the post-processing work |
583 | * that the generator does. */ | |
4e0fcd85 | 584 | if (protocol_version >= 29) { |
051182cb | 585 | kluge_around_eof = -1; |
1a8e5c97 WD |
586 | |
587 | /* This should only get stopped via a USR2 signal. */ | |
588 | while (read_int(f_in) == flist->count | |
589 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
590 | ||
3485ae83 WD |
591 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
592 | who_am_i()); | |
1a8e5c97 | 593 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
594 | } |
595 | ||
9e0582f9 WD |
596 | /* Finally, we go to sleep until our parent kills us with a |
597 | * USR2 signal. We sleep for a short time, as on some OSes | |
598 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
599 | while (1) |
600 | msleep(20); | |
d186eb1a | 601 | } |
dc5ddbcc | 602 | |
b695f242 | 603 | am_generator = 1; |
9eeb3b9c | 604 | close_multiplexing_in(); |
e8a96e27 | 605 | if (write_batch && !am_server) |
b9f592fb | 606 | stop_write_batch(); |
b695f242 | 607 | |
554e0a8d | 608 | close(error_pipe[1]); |
3a69fad0 WD |
609 | if (f_in != f_out) |
610 | close(f_in); | |
e1b3d5c4 | 611 | |
da3478b2 | 612 | io_start_buffering_out(); |
b3e10ed7 | 613 | |
f1e3656e | 614 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 615 | |
c70e07d9 | 616 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 617 | |
33c4b445 | 618 | handle_stats(-1); |
f1e3656e | 619 | io_flush(FULL_FLUSH); |
d04e9c51 | 620 | if (protocol_version >= 24) { |
8ada7518 AT |
621 | /* send a final goodbye message */ |
622 | write_int(f_out, -1); | |
623 | } | |
f1e3656e | 624 | io_flush(FULL_FLUSH); |
8ada7518 | 625 | |
f1e3656e | 626 | set_msg_fd_in(-1); |
089a2435 | 627 | kill(pid, SIGUSR2); |
84e6d6fd WD |
628 | wait_process_with_flush(pid, &exit_code); |
629 | return exit_code; | |
dc5ddbcc AT |
630 | } |
631 | ||
c627d613 | 632 | |
9486289c | 633 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 634 | { |
84e6d6fd | 635 | int exit_code; |
7a6421fa | 636 | struct file_list *flist; |
6c2e5b56 | 637 | char *local_name = NULL; |
7a6421fa | 638 | char *dir = NULL; |
40e6752f | 639 | char olddir[sizeof curr_dir]; |
07bff66f WD |
640 | int save_verbose = verbose; |
641 | ||
642 | if (filesfrom_fd >= 0) { | |
643 | /* We can't mix messages with files-from data on the socket, | |
644 | * so temporarily turn off verbose messages. */ | |
645 | verbose = 0; | |
646 | } | |
f0fca04e | 647 | |
45e08edb WD |
648 | if (verbose > 2) { |
649 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
650 | argc, (long)getpid()); | |
651 | } | |
09b7f5db | 652 | |
2adbcdc7 | 653 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
654 | rprintf(FERROR,"ERROR: module is read only\n"); |
655 | exit_cleanup(RERR_SYNTAX); | |
656 | return; | |
657 | } | |
658 | ||
d9c7edf6 | 659 | |
7a6421fa AT |
660 | if (argc > 0) { |
661 | dir = argv[0]; | |
662 | argc--; | |
663 | argv++; | |
59187666 | 664 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
665 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
666 | full_fname(dir)); | |
65417579 | 667 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 668 | } |
7a6421fa | 669 | } |
c627d613 | 670 | |
da3478b2 | 671 | io_start_buffering_in(); |
57dee64e | 672 | recv_filter_list(f_in); |
c627d613 | 673 | |
7c2a9e76 | 674 | if (filesfrom_fd >= 0) { |
07bff66f WD |
675 | /* We need to send the files-from names to the sender at the |
676 | * same time that we receive the file-list from them, so we | |
677 | * need the IO routines to automatically write out the names | |
678 | * onto our f_out socket as we read the file-list. This | |
679 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
680 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
681 | filesfrom_fd = -1; | |
682 | } | |
683 | ||
40e6752f WD |
684 | strlcpy(olddir, curr_dir, sizeof olddir); |
685 | if (always_checksum && argc > 0) | |
686 | pre_checksum = push_dir(argv[0]); | |
687 | ||
b9f592fb | 688 | flist = recv_file_list(f_in); |
07bff66f | 689 | verbose = save_verbose; |
4c36a13e AT |
690 | if (!flist) { |
691 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 692 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 693 | } |
a00628b3 | 694 | the_file_list = flist; |
d9c7edf6 | 695 | |
40e6752f WD |
696 | if (pre_checksum) |
697 | pop_dir(olddir); | |
698 | ||
29fad7a3 | 699 | if (argc > 0) |
7a6421fa | 700 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 701 | |
84e6d6fd WD |
702 | exit_code = do_recv(f_in,f_out,flist,local_name); |
703 | exit_cleanup(exit_code); | |
c627d613 AT |
704 | } |
705 | ||
706 | ||
734a94a2 | 707 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
708 | { |
709 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 710 | return 0; |
25d34a5c MP |
711 | } |
712 | ||
713 | ||
9486289c | 714 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 715 | { |
f0359dd0 AT |
716 | set_nonblocking(f_in); |
717 | set_nonblocking(f_out); | |
718 | ||
da3478b2 WD |
719 | io_set_sock_fds(f_in, f_out); |
720 | setup_protocol(f_out, f_in); | |
721 | ||
d04e9c51 | 722 | if (protocol_version >= 23) |
da3478b2 | 723 | io_start_multiplex_out(); |
7a6421fa | 724 | |
7a6421fa | 725 | if (am_sender) { |
83926d3c | 726 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
727 | if (need_messages_from_generator) |
728 | io_start_multiplex_in(); | |
9b3318b0 | 729 | |
7842418b | 730 | recv_filter_list(f_in); |
7a6421fa AT |
731 | do_server_sender(f_in, f_out, argc, argv); |
732 | } else { | |
733 | do_server_recv(f_in, f_out, argc, argv); | |
734 | } | |
735 | exit_cleanup(0); | |
366345fe AT |
736 | } |
737 | ||
0ba48136 MP |
738 | |
739 | /* | |
740 | * This is called once the connection has been negotiated. It is used | |
741 | * for rsyncd, remote-shell, and local connections. | |
742 | */ | |
19b27a48 | 743 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 744 | { |
088aac85 | 745 | struct file_list *flist = NULL; |
84e6d6fd | 746 | int exit_code = 0, exit_code2 = 0; |
40e6752f | 747 | char olddir[sizeof curr_dir]; |
9486289c | 748 | char *local_name = NULL; |
19b27a48 AT |
749 | |
750 | cleanup_child_pid = pid; | |
67a28eb2 | 751 | if (!read_batch) { |
b9f592fb WD |
752 | set_nonblocking(f_in); |
753 | set_nonblocking(f_out); | |
754 | } | |
f0359dd0 | 755 | |
da3478b2 | 756 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
757 | setup_protocol(f_out,f_in); |
758 | ||
b9f592fb | 759 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 760 | io_start_multiplex_in(); |
d9c7edf6 | 761 | |
18882701 WD |
762 | /* We set our stderr file handle to blocking because ssh might have |
763 | * set it to non-blocking. This can be particularly troublesome if | |
764 | * stderr is a clone of stdout, because ssh would have set our stdout | |
765 | * to non-blocking at the same time (which can easily cause us to lose | |
766 | * output from our print statements). This kluge shouldn't cause ssh | |
767 | * any problems for how we use it. Note also that we delayed setting | |
768 | * this until after the above protocol setup so that we know for sure | |
769 | * that ssh is done twiddling its file descriptors. */ | |
770 | set_blocking(STDERR_FILENO); | |
771 | ||
9486289c | 772 | if (am_sender) { |
83926d3c | 773 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 774 | io_start_buffering_out(); |
860236bf | 775 | if (!filesfrom_host) |
a0a33ee5 | 776 | set_msg_fd_in(f_in); |
57dee64e | 777 | send_filter_list(f_out); |
860236bf | 778 | if (filesfrom_host) |
7c2a9e76 | 779 | filesfrom_fd = f_in; |
b9f592fb | 780 | |
e8a96e27 | 781 | if (write_batch && !am_server) |
b9f592fb | 782 | start_write_batch(f_out); |
a00628b3 | 783 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 784 | set_msg_fd_in(-1); |
d9c7edf6 | 785 | if (verbose > 3) |
9486289c | 786 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 787 | the_file_list = flist; |
e1b3d5c4 | 788 | |
f1e3656e | 789 | io_flush(NORMAL_FLUSH); |
9486289c | 790 | send_files(flist,f_out,f_in); |
f1e3656e | 791 | io_flush(FULL_FLUSH); |
33c4b445 | 792 | handle_stats(-1); |
4e0fcd85 | 793 | if (protocol_version >= 24) |
3485ae83 | 794 | read_final_goodbye(f_in, f_out); |
9486289c AT |
795 | if (pid != -1) { |
796 | if (verbose > 3) | |
08a740ff | 797 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 798 | io_flush(FULL_FLUSH); |
84e6d6fd | 799 | wait_process_with_flush(pid, &exit_code); |
9486289c | 800 | } |
33c4b445 | 801 | output_summary(); |
c87ae64a | 802 | io_flush(FULL_FLUSH); |
84e6d6fd | 803 | exit_cleanup(exit_code); |
9486289c | 804 | } |
f7632fc6 | 805 | |
bf26aa22 WD |
806 | if (need_messages_from_generator && !read_batch) |
807 | io_start_multiplex_out(); | |
808 | ||
48a1ff0d WD |
809 | if (argc == 0) |
810 | list_only |= 1; | |
d9c7edf6 | 811 | |
57dee64e | 812 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 813 | |
7c2a9e76 WD |
814 | if (filesfrom_fd >= 0) { |
815 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
816 | filesfrom_fd = -1; | |
817 | } | |
818 | ||
40e6752f WD |
819 | strlcpy(olddir, curr_dir, sizeof olddir); |
820 | if (always_checksum) | |
821 | pre_checksum = push_dir(argv[0]); | |
822 | ||
e8a96e27 | 823 | if (write_batch && !am_server) |
b9f592fb | 824 | start_write_batch(f_in); |
9486289c | 825 | flist = recv_file_list(f_in); |
a00628b3 | 826 | the_file_list = flist; |
d9c7edf6 | 827 | |
40e6752f WD |
828 | if (pre_checksum) |
829 | pop_dir(olddir); | |
830 | ||
9d19f8a5 WD |
831 | if (flist && flist->count > 0) { |
832 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 833 | |
84e6d6fd | 834 | exit_code2 = do_recv(f_in, f_out, flist, local_name); |
9d19f8a5 WD |
835 | } else { |
836 | handle_stats(-1); | |
837 | output_summary(); | |
838 | } | |
d9c7edf6 | 839 | |
9486289c | 840 | if (pid != -1) { |
8d9dc9f9 | 841 | if (verbose > 3) |
08a740ff | 842 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 843 | io_flush(FULL_FLUSH); |
84e6d6fd | 844 | wait_process_with_flush(pid, &exit_code); |
9486289c | 845 | } |
d9c7edf6 | 846 | |
84e6d6fd | 847 | return MAX(exit_code, exit_code2); |
9486289c AT |
848 | } |
849 | ||
7169bb4a MP |
850 | static int copy_argv (char *argv[]) |
851 | { | |
852 | int i; | |
853 | ||
854 | for (i = 0; argv[i]; i++) { | |
855 | if (!(argv[i] = strdup(argv[i]))) { | |
856 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
857 | __FILE__, __LINE__); | |
858 | return RERR_MALLOC; | |
859 | } | |
860 | } | |
861 | ||
862 | return 0; | |
863 | } | |
864 | ||
865 | ||
c1a04ecb | 866 | /** |
0ba48136 MP |
867 | * Start a client for either type of remote connection. Work out |
868 | * whether the arguments request a remote shell or rsyncd connection, | |
869 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
870 | * |
871 | * Calls either start_socket_client (for sockets) or do_cmd and | |
872 | * client_run (for ssh). | |
c1a04ecb | 873 | **/ |
fc8a6b97 | 874 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
875 | { |
876 | char *p; | |
877 | char *shell_machine = NULL; | |
878 | char *shell_path = NULL; | |
879 | char *shell_user = NULL; | |
19b27a48 AT |
880 | int ret; |
881 | pid_t pid; | |
5d6bcd44 | 882 | int f_in,f_out; |
7169bb4a MP |
883 | int rc; |
884 | ||
885 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 886 | * command line. */ |
75aeac44 | 887 | if ((rc = copy_argv(argv))) |
7169bb4a | 888 | return rc; |
5d6bcd44 | 889 | |
d16c245f | 890 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 891 | argc--; |
860236bf WD |
892 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
893 | if (shell_path) { /* source is remote */ | |
9425918d WD |
894 | char *dummy1; |
895 | int dummy2; | |
3f7bfac2 | 896 | if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { |
9425918d WD |
897 | rprintf(FERROR, |
898 | "The source and destination cannot both be remote.\n"); | |
899 | exit_cleanup(RERR_SYNTAX); | |
900 | } | |
42ccb4c0 | 901 | argv++; |
860236bf WD |
902 | if (filesfrom_host && *filesfrom_host |
903 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 904 | rprintf(FERROR, |
50b31539 | 905 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
906 | exit_cleanup(RERR_SYNTAX); |
907 | } | |
860236bf | 908 | if (rsync_port) { |
d9c7edf6 | 909 | if (!shell_cmd) { |
860236bf WD |
910 | return start_socket_client(shell_machine, |
911 | shell_path, | |
42ccb4c0 | 912 | argc, argv); |
d9c7edf6 | 913 | } |
d9c7edf6 | 914 | daemon_over_rsh = 1; |
75aeac44 | 915 | } |
3591c066 | 916 | |
42ccb4c0 WD |
917 | am_sender = 0; |
918 | } else { /* source is local, check dest arg */ | |
919 | am_sender = 1; | |
920 | ||
d16c245f | 921 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
922 | usage(FERROR); |
923 | exit_cleanup(RERR_SYNTAX); | |
924 | } | |
a125c82a | 925 | |
42ccb4c0 | 926 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
927 | if (shell_path && filesfrom_host && *filesfrom_host |
928 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 929 | rprintf(FERROR, |
50b31539 | 930 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
931 | exit_cleanup(RERR_SYNTAX); |
932 | } | |
860236bf | 933 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 934 | local_server = 1; |
860236bf | 935 | if (filesfrom_host) { |
7c2a9e76 | 936 | rprintf(FERROR, |
50b31539 | 937 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
938 | exit_cleanup(RERR_SYNTAX); |
939 | } | |
860236bf | 940 | shell_machine = NULL; |
42ccb4c0 | 941 | shell_path = argv[argc]; |
860236bf | 942 | } else if (rsync_port) { |
d9c7edf6 | 943 | if (!shell_cmd) { |
860236bf WD |
944 | return start_socket_client(shell_machine, |
945 | shell_path, | |
42ccb4c0 | 946 | argc, argv); |
d9c7edf6 | 947 | } |
d9c7edf6 | 948 | daemon_over_rsh = 1; |
a125c82a | 949 | } |
5d6bcd44 | 950 | } |
d16c245f | 951 | } else { /* read_batch */ |
d9c7edf6 WD |
952 | local_server = 1; |
953 | shell_path = argv[argc-1]; | |
860236bf | 954 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
955 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
956 | exit_cleanup(RERR_SYNTAX); | |
957 | } | |
6902ed17 MP |
958 | } |
959 | ||
5d6bcd44 | 960 | if (shell_machine) { |
6fc048f4 | 961 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
962 | if (p) { |
963 | *p = 0; | |
964 | shell_user = shell_machine; | |
965 | shell_machine = p+1; | |
966 | } | |
967 | } | |
968 | ||
969 | if (verbose > 3) { | |
9486289c | 970 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
971 | shell_cmd ? safe_fname(shell_cmd) : "", |
972 | shell_machine ? safe_fname(shell_machine) : "", | |
973 | shell_user ? safe_fname(shell_user) : "", | |
974 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 975 | } |
d9c7edf6 | 976 | |
d16c245f | 977 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 978 | if (!am_sender && argc > 1) { |
5d6bcd44 | 979 | usage(FERROR); |
65417579 | 980 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 981 | } |
27e3e9c9 | 982 | |
d16c245f | 983 | /* ... or no dest at all */ |
48a1ff0d WD |
984 | if (!am_sender && argc == 0) |
985 | list_only |= 1; | |
d9c7edf6 | 986 | |
75aeac44 WD |
987 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
988 | &f_in,&f_out); | |
989 | ||
990 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 991 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
992 | if (daemon_over_rsh) { |
993 | int tmpret; | |
994 | tmpret = start_inband_exchange(shell_user, shell_path, | |
995 | f_in, f_out, argc); | |
996 | if (tmpret < 0) | |
997 | return tmpret; | |
998 | } | |
999 | ||
fc8a6b97 AT |
1000 | ret = client_run(f_in, f_out, pid, argc, argv); |
1001 | ||
1002 | fflush(stdout); | |
1003 | fflush(stderr); | |
1004 | ||
1005 | return ret; | |
5d6bcd44 AT |
1006 | } |
1007 | ||
366345fe | 1008 | |
067669da WD |
1009 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1010 | { | |
65417579 | 1011 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
1012 | } |
1013 | ||
067669da WD |
1014 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1015 | { | |
33c4b445 WD |
1016 | if (!am_server) |
1017 | output_summary(); | |
40df65fd | 1018 | close_all(); |
33c4b445 WD |
1019 | if (log_got_error) |
1020 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1021 | _exit(0); |
1022 | } | |
1023 | ||
067669da WD |
1024 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1025 | { | |
029c1713 | 1026 | #ifdef WNOHANG |
ee7118a8 DD |
1027 | int cnt, status; |
1028 | pid_t pid; | |
1029 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1030 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1031 | * out we're instead saving the child exit statuses for later use. |
1032 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1033 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1034 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1035 | /* save the child's exit status */ |
1036 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1037 | if (pid_stat_table[cnt].pid == 0) { | |
1038 | pid_stat_table[cnt].pid = pid; | |
1039 | pid_stat_table[cnt].status = status; | |
1040 | break; | |
1041 | } | |
1042 | } | |
ee7118a8 | 1043 | } |
029c1713 | 1044 | #endif |
97d8e709 | 1045 | signal(SIGCHLD, sigchld_handler); |
19b27a48 AT |
1046 | } |
1047 | ||
c0531332 MP |
1048 | |
1049 | /** | |
1050 | * This routine catches signals and tries to send them to gdb. | |
1051 | * | |
1052 | * Because it's called from inside a signal handler it ought not to | |
1053 | * use too many library routines. | |
1054 | * | |
1055 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1056 | * debugging without easy access to X. Perhaps use an environment | |
1057 | * variable, or just call a script? | |
1058 | * | |
1059 | * @todo The /proc/ magic probably only works on Linux (and | |
1060 | * Solaris?) Can we be more portable? | |
1061 | **/ | |
1062 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1063 | const char *get_panic_action(void) |
1064 | { | |
1065 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1066 | ||
1067 | if (cmd_fmt) | |
1068 | return cmd_fmt; | |
1069 | else | |
1070 | return "xterm -display :0 -T Panic -n Panic " | |
1071 | "-e gdb /proc/%d/exe %d"; | |
1072 | } | |
1073 | ||
1074 | ||
9fb3f7a9 MP |
1075 | /** |
1076 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1077 | * | |
1078 | * This signal handler is only installed if we were configured with | |
1079 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1080 | * should just look at the environment variable, but I'm a bit leery | |
1081 | * of a signal sending us into a busy loop. | |
1082 | **/ | |
067669da | 1083 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1084 | { |
1085 | char cmd_buf[300]; | |
1086 | int ret; | |
4fdc39dd MP |
1087 | |
1088 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1089 | getpid(), getpid()); |
1090 | ||
1091 | /* Unless we failed to execute gdb, we allow the process to | |
1092 | * continue. I'm not sure if that's right. */ | |
1093 | ret = system(cmd_buf); | |
1094 | if (ret) | |
1095 | _exit(ret); | |
1096 | } | |
1097 | #endif | |
1098 | ||
1099 | ||
5d6bcd44 | 1100 | int main(int argc,char *argv[]) |
d9c7edf6 | 1101 | { |
ff81e809 | 1102 | int ret; |
66a9dc96 WD |
1103 | int orig_argc = argc; |
1104 | char **orig_argv = argv; | |
5d6bcd44 | 1105 | |
7a6421fa | 1106 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1107 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1108 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1109 | #ifdef MAINTAINER_MODE |
1110 | signal(SIGSEGV, rsync_panic_handler); | |
1111 | signal(SIGFPE, rsync_panic_handler); | |
1112 | signal(SIGABRT, rsync_panic_handler); | |
1113 | signal(SIGBUS, rsync_panic_handler); | |
1114 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1115 | |
7a6421fa | 1116 | starttime = time(NULL); |
6fe05820 | 1117 | am_root = (MY_UID() == 0); |
c627d613 | 1118 | |
a800434a AT |
1119 | memset(&stats, 0, sizeof(stats)); |
1120 | ||
df5e03da AT |
1121 | if (argc < 2) { |
1122 | usage(FERROR); | |
65417579 | 1123 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1124 | } |
1125 | ||
7a6421fa | 1126 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1127 | * carried across */ |
7a6421fa | 1128 | orig_umask = (int)umask(0); |
5d6bcd44 | 1129 | |
50135767 | 1130 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1131 | /* FIXME: We ought to call the same error-handling |
1132 | * code here, rather than relying on getopt. */ | |
50135767 | 1133 | option_error(); |
65417579 | 1134 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1135 | } |
5d6bcd44 | 1136 | |
7a6421fa | 1137 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1138 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1139 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1140 | |
34758d5c MP |
1141 | /* Ignore SIGPIPE; we consistently check error codes and will |
1142 | * see the EPIPE. */ | |
1143 | signal(SIGPIPE, SIG_IGN); | |
1144 | ||
d9401514 WD |
1145 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1146 | setlocale(LC_CTYPE, ""); | |
1147 | #endif | |
1148 | ||
c226b7c2 | 1149 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1150 | * (implemented by forking "pwd" and reading its output) doesn't |
1151 | * work when there are other child processes. Also, on all systems | |
1152 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1153 | push_dir(NULL); |
c226b7c2 | 1154 | |
44e9e221 WD |
1155 | init_flist(); |
1156 | ||
e8a96e27 | 1157 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1158 | if (write_batch) |
66a9dc96 | 1159 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1160 | |
dbbab0c4 WD |
1161 | if (read_batch && strcmp(batch_name, "-") == 0) |
1162 | batch_fd = STDIN_FILENO; | |
1163 | else { | |
1164 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1165 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1166 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1167 | } |
b9f592fb WD |
1168 | if (batch_fd < 0) { |
1169 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1170 | full_fname(batch_name)); |
b9f592fb WD |
1171 | exit_cleanup(RERR_FILEIO); |
1172 | } | |
9459290a WD |
1173 | if (read_batch) |
1174 | read_stream_flags(batch_fd); | |
6902ed17 | 1175 | } |
e8a96e27 WD |
1176 | if (write_batch < 0) |
1177 | dry_run = 1; | |
6902ed17 | 1178 | |
75aeac44 | 1179 | if (am_daemon && !am_server) |
7a6421fa | 1180 | return daemon_main(); |
f0fca04e | 1181 | |
08ac228f AT |
1182 | if (argc < 1) { |
1183 | usage(FERROR); | |
65417579 | 1184 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1185 | } |
1186 | ||
7a6421fa | 1187 | if (am_server) { |
f0359dd0 AT |
1188 | set_nonblocking(STDIN_FILENO); |
1189 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1190 | if (am_daemon) |
1191 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1192 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1193 | } | |
c627d613 | 1194 | |
ff81e809 | 1195 | ret = start_client(argc, argv); |
d9c7edf6 | 1196 | if (ret == -1) |
9098bbf3 | 1197 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1198 | else |
9098bbf3 MP |
1199 | exit_cleanup(ret); |
1200 | ||
0f5a04e3 | 1201 | return ret; |
c627d613 | 1202 | } |