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. */ | |
ee7118a8 DD |
72 | #define MAXCHILDPROCS 5 |
73 | ||
74 | struct pid_status { | |
75 | pid_t pid; | |
76 | int status; | |
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; | |
ee7118a8 DD |
94 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { |
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. */ | |
107 | static void wait_process_with_flush(pid_t pid, int *code_ptr) | |
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 WD |
120 | * this to the caller so that they know something went wrong. */ |
121 | if (waited_pid < 0) | |
122 | *code_ptr = RERR_WAITCHILD; | |
123 | else if (!WIFEXITED(status)) { | |
40e6752f | 124 | #ifdef WCOREDUMP |
dbefb6b4 WD |
125 | if (WCOREDUMP(status)) |
126 | *code_ptr = RERR_CRASHED; | |
40e6752f WD |
127 | else |
128 | #endif | |
129 | if (WIFSIGNALED(status)) | |
dbefb6b4 WD |
130 | *code_ptr = RERR_TERMINATED; |
131 | else | |
132 | *code_ptr = RERR_WAITCHILD; | |
133 | } else | |
134 | *code_ptr = WEXITSTATUS(status); | |
82980a23 AT |
135 | } |
136 | ||
b9f592fb WD |
137 | /* This function gets called from all 3 processes. We want the client side |
138 | * to actually output the text, but the sender is the only process that has | |
139 | * all the stats we need. So, if we're a client sender, we do the report. | |
140 | * If we're a server sender, we write the stats on the supplied fd. If | |
141 | * we're the client receiver we read the stats from the supplied fd and do | |
142 | * the report. All processes might also generate a set of debug stats, if | |
143 | * the verbose level is high enough (this is the only thing that the | |
144 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 145 | static void handle_stats(int f) |
c627d613 | 146 | { |
33c4b445 WD |
147 | endtime = time(NULL); |
148 | ||
b9f592fb | 149 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
150 | total_read = stats.total_read; |
151 | total_written = stats.total_written; | |
7a6421fa | 152 | |
7bb7058e | 153 | if (do_stats && verbose > 1) { |
5c15e29f | 154 | /* These come out from every process */ |
7bb7058e | 155 | show_malloc_stats(); |
86943126 | 156 | show_flist_stats(); |
5c15e29f MP |
157 | } |
158 | ||
e5fbaa71 S |
159 | if (am_generator) |
160 | return; | |
161 | ||
248fbb8c | 162 | if (am_daemon) { |
a9766ef1 | 163 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
164 | if (f == -1 || !am_sender) |
165 | return; | |
248fbb8c AT |
166 | } |
167 | ||
e19452a9 | 168 | if (am_server) { |
3e491682 | 169 | if (am_sender) { |
b9f592fb WD |
170 | write_longint(f, total_read); |
171 | write_longint(f, total_written); | |
172 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
173 | if (protocol_version >= 29) { |
174 | write_longint(f, stats.flist_buildtime); | |
175 | write_longint(f, stats.flist_xfertime); | |
176 | } | |
e19452a9 | 177 | } |
7a6421fa AT |
178 | return; |
179 | } | |
e19452a9 DD |
180 | |
181 | /* this is the client */ | |
d9c7edf6 | 182 | |
9d19f8a5 WD |
183 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
184 | ; | |
185 | else if (!am_sender) { | |
58c5c245 WD |
186 | /* Read the first two in opposite order because the meaning of |
187 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
188 | total_written = read_longint(f); |
189 | total_read = read_longint(f); | |
a800434a | 190 | stats.total_size = read_longint(f); |
f0f7e760 WD |
191 | if (protocol_version >= 29) { |
192 | stats.flist_buildtime = read_longint(f); | |
193 | stats.flist_xfertime = read_longint(f); | |
194 | } | |
e4676bb5 | 195 | } else if (write_batch) { |
b9f592fb WD |
196 | /* The --read-batch process is going to be a client |
197 | * receiver, so we need to give it the stats. */ | |
198 | write_longint(batch_fd, total_read); | |
199 | write_longint(batch_fd, total_written); | |
200 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
201 | if (protocol_version >= 29) { |
202 | write_longint(batch_fd, stats.flist_buildtime); | |
203 | write_longint(batch_fd, stats.flist_xfertime); | |
204 | } | |
a800434a | 205 | } |
e4676bb5 | 206 | } |
a800434a | 207 | |
e4676bb5 WD |
208 | static void output_summary(void) |
209 | { | |
a800434a | 210 | if (do_stats) { |
1f658d42 | 211 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
212 | rprintf(FINFO,"Number of files transferred: %d\n", |
213 | stats.num_transferred_files); | |
214 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
215 | (double)stats.total_size); | |
216 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
217 | (double)stats.total_transferred_size); | |
218 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
219 | (double)stats.literal_data); | |
220 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
221 | (double)stats.matched_data); | |
1f658d42 | 222 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
223 | if (stats.flist_buildtime) { |
224 | rprintf(FINFO, | |
225 | "File list generation time: %.3f seconds\n", | |
226 | (double)stats.flist_buildtime / 1000); | |
227 | rprintf(FINFO, | |
228 | "File list transfer time: %.3f seconds\n", | |
229 | (double)stats.flist_xfertime / 1000); | |
230 | } | |
4de2a174 | 231 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 232 | (double)total_written); |
4de2a174 | 233 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 234 | (double)total_read); |
7a6421fa | 235 | } |
d9c7edf6 | 236 | |
e19452a9 | 237 | if (verbose || do_stats) { |
b9f592fb | 238 | rprintf(FINFO, |
4de2a174 | 239 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb | 240 | (double)total_written, (double)total_read, |
33c4b445 | 241 | (total_written + total_read)/(0.5 + (endtime - starttime))); |
b9f592fb | 242 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", |
d9c7edf6 | 243 | (double)stats.total_size, |
b9f592fb | 244 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 245 | } |
fc8a6b97 AT |
246 | |
247 | fflush(stdout); | |
248 | fflush(stderr); | |
c627d613 AT |
249 | } |
250 | ||
251 | ||
e5a2b854 MP |
252 | /** |
253 | * If our C library can get malloc statistics, then show them to FINFO | |
254 | **/ | |
255 | static void show_malloc_stats(void) | |
256 | { | |
4f5b0756 | 257 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
258 | struct mallinfo mi; |
259 | ||
260 | mi = mallinfo(); | |
261 | ||
ce672562 | 262 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
263 | getpid(), am_server ? "server " : "", |
264 | am_daemon ? "daemon " : "", who_am_i()); | |
265 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
266 | (long)mi.arena); | |
267 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
268 | (long)mi.ordblks); | |
269 | rprintf(FINFO, " smblks: %10ld\n", | |
270 | (long)mi.smblks); | |
271 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
272 | (long)mi.hblks); | |
273 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
274 | (long)mi.hblkhd); | |
275 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
276 | (long)mi.arena + mi.hblkhd); | |
277 | rprintf(FINFO, " usmblks: %10ld\n", | |
278 | (long)mi.usmblks); | |
279 | rprintf(FINFO, " fsmblks: %10ld\n", | |
280 | (long)mi.fsmblks); | |
281 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
282 | (long)mi.uordblks); | |
283 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
284 | (long)mi.fordblks); | |
285 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
286 | (long)mi.keepcost); | |
e5a2b854 MP |
287 | #endif /* HAVE_MALLINFO */ |
288 | } | |
289 | ||
290 | ||
0882faa2 | 291 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
292 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
293 | int *f_in, int *f_out) | |
c627d613 | 294 | { |
6c2e5b56 | 295 | int i, argc = 0; |
887e553f | 296 | char *args[MAX_ARGS]; |
19b27a48 | 297 | pid_t ret; |
6c2e5b56 | 298 | char *tok, *dir = NULL; |
bb4aa89c | 299 | int dash_l_set = 0; |
366345fe | 300 | |
088aac85 | 301 | if (!read_batch && !local_server) { |
9af87151 | 302 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 303 | if (!cmd) |
9af87151 | 304 | cmd = rsh_env; |
366345fe AT |
305 | if (!cmd) |
306 | cmd = RSYNC_RSH; | |
307 | cmd = strdup(cmd); | |
d9c7edf6 | 308 | if (!cmd) |
366345fe AT |
309 | goto oom; |
310 | ||
887e553f | 311 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 | 312 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 313 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 314 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
315 | exit_cleanup(RERR_SYNTAX); |
316 | } | |
366345fe | 317 | args[argc++] = tok; |
887e553f | 318 | } |
c627d613 | 319 | |
d9c7edf6 | 320 | /* check to see if we've already been given '-l user' in |
9af87151 | 321 | * the remote-shell command */ |
bb4aa89c WD |
322 | for (i = 0; i < argc-1; i++) { |
323 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
324 | dash_l_set = 1; | |
325 | } | |
326 | ||
4f5b0756 | 327 | #ifdef HAVE_REMSH |
366345fe AT |
328 | /* remsh (on HPUX) takes the arguments the other way around */ |
329 | args[argc++] = machine; | |
bb4aa89c | 330 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
331 | args[argc++] = "-l"; |
332 | args[argc++] = user; | |
333 | } | |
7b8356d0 | 334 | #else |
bb4aa89c | 335 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
336 | args[argc++] = "-l"; |
337 | args[argc++] = user; | |
338 | } | |
339 | args[argc++] = machine; | |
7b8356d0 | 340 | #endif |
c627d613 | 341 | |
366345fe | 342 | args[argc++] = rsync_path; |
c627d613 | 343 | |
9af87151 | 344 | if (blocking_io < 0) { |
90e22f4b WD |
345 | char *cp; |
346 | if ((cp = strrchr(cmd, '/')) != NULL) | |
347 | cp++; | |
348 | else | |
349 | cp = cmd; | |
350 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
351 | blocking_io = 1; | |
66b71163 | 352 | } |
e384bfbd | 353 | |
93689aa5 | 354 | server_options(args,&argc); |
e7a392c7 WD |
355 | |
356 | if (argc >= MAX_ARGS - 2) { | |
357 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
358 | exit_cleanup(RERR_SYNTAX); | |
359 | } | |
366345fe | 360 | } |
c627d613 | 361 | |
366345fe | 362 | args[argc++] = "."; |
76076c4b | 363 | |
d9c7edf6 | 364 | if (!daemon_over_rsh && path && *path) |
366345fe | 365 | args[argc++] = path; |
c627d613 | 366 | |
366345fe | 367 | args[argc] = NULL; |
c627d613 | 368 | |
366345fe | 369 | if (verbose > 3) { |
9486289c | 370 | rprintf(FINFO,"cmd="); |
e7a392c7 | 371 | for (i = 0; i < argc; i++) |
71903f60 | 372 | rprintf(FINFO, "%s ", safe_fname(args[i])); |
9486289c | 373 | rprintf(FINFO,"\n"); |
366345fe AT |
374 | } |
375 | ||
c0d8e84c WD |
376 | if (read_batch) { |
377 | int from_gen_pipe[2]; | |
378 | if (fd_pair(from_gen_pipe) < 0) { | |
379 | rsyserr(FERROR, errno, "pipe"); | |
380 | exit_cleanup(RERR_IPC); | |
381 | } | |
382 | batch_gen_fd = from_gen_pipe[0]; | |
383 | *f_out = from_gen_pipe[1]; | |
384 | *f_in = batch_fd; | |
385 | ret = -1; /* no child pid */ | |
386 | } else if (local_server) { | |
b1df18d7 WD |
387 | /* If the user didn't request --[no-]whole-file, force |
388 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 389 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 390 | whole_file = 1; |
25d34a5c | 391 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 392 | } else |
366345fe | 393 | ret = piped_child(args,f_in,f_out); |
c627d613 | 394 | |
3a69fad0 WD |
395 | if (dir) |
396 | free(dir); | |
82306bf6 | 397 | |
366345fe | 398 | return ret; |
c627d613 AT |
399 | |
400 | oom: | |
366345fe AT |
401 | out_of_memory("do_cmd"); |
402 | return 0; /* not reached */ | |
c627d613 AT |
403 | } |
404 | ||
405 | ||
c627d613 AT |
406 | static char *get_local_name(struct file_list *flist,char *name) |
407 | { | |
7a6421fa | 408 | STRUCT_STAT st; |
87cc45e1 | 409 | int e; |
c627d613 | 410 | |
c95da96a | 411 | if (verbose > 2) |
d9c7edf6 | 412 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
413 | flist->count, NS(name)); |
414 | ||
d9c7edf6 | 415 | if (!name) |
1f0610ef | 416 | return NULL; |
c95da96a | 417 | |
1ff5450d AT |
418 | if (do_stat(name,&st) == 0) { |
419 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 420 | if (!push_dir(name)) { |
982e05bb WD |
421 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
422 | full_fname(name)); | |
65417579 | 423 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
424 | } |
425 | return NULL; | |
426 | } | |
427 | if (flist->count > 1) { | |
428 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 429 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
430 | } |
431 | return name; | |
432 | } | |
433 | ||
87cc45e1 | 434 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
435 | return name; |
436 | ||
1ff5450d | 437 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 438 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 439 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
440 | } |
441 | if (verbose > 0) | |
71903f60 | 442 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
443 | |
444 | if (dry_run) { | |
445 | dry_run++; | |
446 | return NULL; | |
1ff5450d AT |
447 | } |
448 | ||
59187666 | 449 | if (!push_dir(name)) { |
982e05bb WD |
450 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
451 | full_fname(name)); | |
65417579 | 452 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
453 | } |
454 | ||
455 | return NULL; | |
c627d613 AT |
456 | } |
457 | ||
458 | ||
1a8e5c97 | 459 | /* This is only called by the sender. */ |
3485ae83 | 460 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 461 | { |
1a8e5c97 WD |
462 | int i; |
463 | ||
464 | if (protocol_version < 29) | |
465 | i = read_int(f_in); | |
466 | else { | |
3485ae83 | 467 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
468 | && read_shortint(f_in) == ITEM_IS_NEW) { |
469 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 470 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
471 | write_shortint(f_out, ITEM_IS_NEW); |
472 | } | |
4e0fcd85 WD |
473 | } |
474 | ||
1a8e5c97 | 475 | if (i != -1) { |
c7791b8c WD |
476 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
477 | i, who_am_i()); | |
1a8e5c97 | 478 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
479 | } |
480 | } | |
481 | ||
482 | ||
9486289c | 483 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 484 | { |
7a6421fa AT |
485 | struct file_list *flist; |
486 | char *dir = argv[0]; | |
c627d613 | 487 | |
45e08edb WD |
488 | if (verbose > 2) { |
489 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
490 | (long)getpid()); | |
491 | } | |
d9c7edf6 | 492 | |
2adbcdc7 | 493 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
494 | rprintf(FERROR, "ERROR: module is write only\n"); |
495 | exit_cleanup(RERR_SYNTAX); | |
496 | return; | |
497 | } | |
bf26aa22 WD |
498 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
499 | rprintf(FERROR, | |
500 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
501 | exit_cleanup(RERR_SYNTAX); | |
502 | return; | |
503 | } | |
7a92ded3 | 504 | |
59187666 | 505 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
506 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
507 | full_fname(dir)); | |
65417579 | 508 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
509 | } |
510 | argc--; | |
511 | argv++; | |
d9c7edf6 | 512 | |
48a1ff0d | 513 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 514 | argc = 1; |
7a6421fa AT |
515 | argv--; |
516 | argv[0] = "."; | |
517 | } | |
d9c7edf6 | 518 | |
7a6421fa | 519 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
520 | if (!flist || flist->count == 0) { |
521 | exit_cleanup(0); | |
522 | } | |
a00628b3 | 523 | the_file_list = flist; |
8d9dc9f9 | 524 | |
da3478b2 WD |
525 | io_start_buffering_in(); |
526 | io_start_buffering_out(); | |
527 | ||
7a6421fa | 528 | send_files(flist,f_out,f_in); |
f1e3656e | 529 | io_flush(FULL_FLUSH); |
33c4b445 | 530 | handle_stats(f_out); |
4e0fcd85 | 531 | if (protocol_version >= 24) |
3485ae83 | 532 | read_final_goodbye(f_in, f_out); |
f1e3656e | 533 | io_flush(FULL_FLUSH); |
7a6421fa | 534 | exit_cleanup(0); |
c627d613 AT |
535 | } |
536 | ||
537 | ||
dc5ddbcc AT |
538 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
539 | { | |
d186eb1a | 540 | int pid; |
e1f67417 | 541 | int status = 0; |
c70e07d9 | 542 | int error_pipe[2]; |
dc5ddbcc | 543 | |
bb6721dc WD |
544 | /* The receiving side mustn't obey this, or an existing symlink that |
545 | * points to an identical file won't be replaced by the referent. */ | |
546 | copy_links = 0; | |
547 | ||
d186eb1a | 548 | if (preserve_hard_links) |
3485ae83 | 549 | init_hard_links(); |
dc5ddbcc | 550 | |
c70e07d9 | 551 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 552 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 553 | exit_cleanup(RERR_IPC); |
554e0a8d | 554 | } |
d9c7edf6 | 555 | |
f1e3656e | 556 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 557 | |
ba449e44 | 558 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 559 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
560 | exit_cleanup(RERR_IPC); |
561 | } | |
562 | ||
563 | if (pid == 0) { | |
554e0a8d | 564 | close(error_pipe[0]); |
3a69fad0 WD |
565 | if (f_in != f_out) |
566 | close(f_out); | |
e08c9610 | 567 | |
554e0a8d | 568 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 569 | close_multiplexing_out(); |
554e0a8d AT |
570 | |
571 | /* set place to send errors */ | |
f1e3656e | 572 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 573 | |
c70e07d9 | 574 | recv_files(f_in, flist, local_name); |
f1e3656e | 575 | io_flush(FULL_FLUSH); |
33c4b445 | 576 | handle_stats(f_in); |
e08c9610 | 577 | |
f1e3656e WD |
578 | send_msg(MSG_DONE, "", 0); |
579 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 580 | |
40df65fd WD |
581 | /* Handle any keep-alive packets from the post-processing work |
582 | * that the generator does. */ | |
4e0fcd85 | 583 | if (protocol_version >= 29) { |
051182cb | 584 | kluge_around_eof = -1; |
1a8e5c97 WD |
585 | |
586 | /* This should only get stopped via a USR2 signal. */ | |
587 | while (read_int(f_in) == flist->count | |
588 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
589 | ||
3485ae83 WD |
590 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
591 | who_am_i()); | |
1a8e5c97 | 592 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
593 | } |
594 | ||
9e0582f9 WD |
595 | /* Finally, we go to sleep until our parent kills us with a |
596 | * USR2 signal. We sleep for a short time, as on some OSes | |
597 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
598 | while (1) |
599 | msleep(20); | |
d186eb1a | 600 | } |
dc5ddbcc | 601 | |
b695f242 | 602 | am_generator = 1; |
9eeb3b9c | 603 | close_multiplexing_in(); |
e8a96e27 | 604 | if (write_batch && !am_server) |
b9f592fb | 605 | stop_write_batch(); |
b695f242 | 606 | |
554e0a8d | 607 | close(error_pipe[1]); |
3a69fad0 WD |
608 | if (f_in != f_out) |
609 | close(f_in); | |
e1b3d5c4 | 610 | |
da3478b2 | 611 | io_start_buffering_out(); |
b3e10ed7 | 612 | |
f1e3656e | 613 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 614 | |
c70e07d9 | 615 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 616 | |
33c4b445 | 617 | handle_stats(-1); |
f1e3656e | 618 | io_flush(FULL_FLUSH); |
d04e9c51 | 619 | if (protocol_version >= 24) { |
8ada7518 AT |
620 | /* send a final goodbye message */ |
621 | write_int(f_out, -1); | |
622 | } | |
f1e3656e | 623 | io_flush(FULL_FLUSH); |
8ada7518 | 624 | |
f1e3656e | 625 | set_msg_fd_in(-1); |
089a2435 | 626 | kill(pid, SIGUSR2); |
97d8e709 | 627 | wait_process_with_flush(pid, &status); |
d186eb1a | 628 | return status; |
dc5ddbcc AT |
629 | } |
630 | ||
c627d613 | 631 | |
9486289c | 632 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 633 | { |
7a6421fa AT |
634 | int status; |
635 | struct file_list *flist; | |
6c2e5b56 | 636 | char *local_name = NULL; |
7a6421fa | 637 | char *dir = NULL; |
40e6752f | 638 | char olddir[sizeof curr_dir]; |
07bff66f WD |
639 | int save_verbose = verbose; |
640 | ||
641 | if (filesfrom_fd >= 0) { | |
642 | /* We can't mix messages with files-from data on the socket, | |
643 | * so temporarily turn off verbose messages. */ | |
644 | verbose = 0; | |
645 | } | |
f0fca04e | 646 | |
45e08edb WD |
647 | if (verbose > 2) { |
648 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
649 | argc, (long)getpid()); | |
650 | } | |
09b7f5db | 651 | |
2adbcdc7 | 652 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
653 | rprintf(FERROR,"ERROR: module is read only\n"); |
654 | exit_cleanup(RERR_SYNTAX); | |
655 | return; | |
656 | } | |
657 | ||
d9c7edf6 | 658 | |
7a6421fa AT |
659 | if (argc > 0) { |
660 | dir = argv[0]; | |
661 | argc--; | |
662 | argv++; | |
59187666 | 663 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
664 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
665 | full_fname(dir)); | |
65417579 | 666 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 667 | } |
7a6421fa | 668 | } |
c627d613 | 669 | |
da3478b2 | 670 | io_start_buffering_in(); |
57dee64e | 671 | recv_filter_list(f_in); |
c627d613 | 672 | |
7c2a9e76 | 673 | if (filesfrom_fd >= 0) { |
07bff66f WD |
674 | /* We need to send the files-from names to the sender at the |
675 | * same time that we receive the file-list from them, so we | |
676 | * need the IO routines to automatically write out the names | |
677 | * onto our f_out socket as we read the file-list. This | |
678 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
679 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
680 | filesfrom_fd = -1; | |
681 | } | |
682 | ||
40e6752f WD |
683 | strlcpy(olddir, curr_dir, sizeof olddir); |
684 | if (always_checksum && argc > 0) | |
685 | pre_checksum = push_dir(argv[0]); | |
686 | ||
b9f592fb | 687 | flist = recv_file_list(f_in); |
07bff66f | 688 | verbose = save_verbose; |
4c36a13e AT |
689 | if (!flist) { |
690 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 691 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 692 | } |
a00628b3 | 693 | the_file_list = flist; |
d9c7edf6 | 694 | |
40e6752f WD |
695 | if (pre_checksum) |
696 | pop_dir(olddir); | |
697 | ||
29fad7a3 | 698 | if (argc > 0) |
7a6421fa | 699 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 700 | |
7a6421fa AT |
701 | status = do_recv(f_in,f_out,flist,local_name); |
702 | exit_cleanup(status); | |
c627d613 AT |
703 | } |
704 | ||
705 | ||
734a94a2 | 706 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
707 | { |
708 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 709 | return 0; |
25d34a5c MP |
710 | } |
711 | ||
712 | ||
9486289c | 713 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 714 | { |
f0359dd0 AT |
715 | set_nonblocking(f_in); |
716 | set_nonblocking(f_out); | |
717 | ||
da3478b2 WD |
718 | io_set_sock_fds(f_in, f_out); |
719 | setup_protocol(f_out, f_in); | |
720 | ||
d04e9c51 | 721 | if (protocol_version >= 23) |
da3478b2 | 722 | io_start_multiplex_out(); |
7a6421fa | 723 | |
7a6421fa | 724 | if (am_sender) { |
83926d3c | 725 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
726 | if (need_messages_from_generator) |
727 | io_start_multiplex_in(); | |
9b3318b0 | 728 | |
7842418b | 729 | recv_filter_list(f_in); |
7a6421fa AT |
730 | do_server_sender(f_in, f_out, argc, argv); |
731 | } else { | |
732 | do_server_recv(f_in, f_out, argc, argv); | |
733 | } | |
734 | exit_cleanup(0); | |
366345fe AT |
735 | } |
736 | ||
0ba48136 MP |
737 | |
738 | /* | |
739 | * This is called once the connection has been negotiated. It is used | |
740 | * for rsyncd, remote-shell, and local connections. | |
741 | */ | |
19b27a48 | 742 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 743 | { |
088aac85 | 744 | struct file_list *flist = NULL; |
9486289c | 745 | int status = 0, status2 = 0; |
40e6752f | 746 | char olddir[sizeof curr_dir]; |
9486289c | 747 | char *local_name = NULL; |
19b27a48 AT |
748 | |
749 | cleanup_child_pid = pid; | |
67a28eb2 | 750 | if (!read_batch) { |
b9f592fb WD |
751 | set_nonblocking(f_in); |
752 | set_nonblocking(f_out); | |
753 | } | |
f0359dd0 | 754 | |
da3478b2 | 755 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
756 | setup_protocol(f_out,f_in); |
757 | ||
b9f592fb | 758 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 759 | io_start_multiplex_in(); |
d9c7edf6 | 760 | |
18882701 WD |
761 | /* We set our stderr file handle to blocking because ssh might have |
762 | * set it to non-blocking. This can be particularly troublesome if | |
763 | * stderr is a clone of stdout, because ssh would have set our stdout | |
764 | * to non-blocking at the same time (which can easily cause us to lose | |
765 | * output from our print statements). This kluge shouldn't cause ssh | |
766 | * any problems for how we use it. Note also that we delayed setting | |
767 | * this until after the above protocol setup so that we know for sure | |
768 | * that ssh is done twiddling its file descriptors. */ | |
769 | set_blocking(STDERR_FILENO); | |
770 | ||
9486289c | 771 | if (am_sender) { |
83926d3c | 772 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 773 | io_start_buffering_out(); |
860236bf | 774 | if (!filesfrom_host) |
a0a33ee5 | 775 | set_msg_fd_in(f_in); |
57dee64e | 776 | send_filter_list(f_out); |
860236bf | 777 | if (filesfrom_host) |
7c2a9e76 | 778 | filesfrom_fd = f_in; |
b9f592fb | 779 | |
e8a96e27 | 780 | if (write_batch && !am_server) |
b9f592fb | 781 | start_write_batch(f_out); |
a00628b3 | 782 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 783 | set_msg_fd_in(-1); |
d9c7edf6 | 784 | if (verbose > 3) |
9486289c | 785 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 786 | the_file_list = flist; |
e1b3d5c4 | 787 | |
f1e3656e | 788 | io_flush(NORMAL_FLUSH); |
9486289c | 789 | send_files(flist,f_out,f_in); |
f1e3656e | 790 | io_flush(FULL_FLUSH); |
33c4b445 | 791 | handle_stats(-1); |
4e0fcd85 | 792 | if (protocol_version >= 24) |
3485ae83 | 793 | read_final_goodbye(f_in, f_out); |
9486289c AT |
794 | if (pid != -1) { |
795 | if (verbose > 3) | |
08a740ff | 796 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 797 | io_flush(FULL_FLUSH); |
97d8e709 | 798 | wait_process_with_flush(pid, &status); |
9486289c | 799 | } |
33c4b445 | 800 | output_summary(); |
c87ae64a | 801 | io_flush(FULL_FLUSH); |
9486289c AT |
802 | exit_cleanup(status); |
803 | } | |
f7632fc6 | 804 | |
bf26aa22 WD |
805 | if (need_messages_from_generator && !read_batch) |
806 | io_start_multiplex_out(); | |
807 | ||
48a1ff0d WD |
808 | if (argc == 0) |
809 | list_only |= 1; | |
d9c7edf6 | 810 | |
57dee64e | 811 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 812 | |
7c2a9e76 WD |
813 | if (filesfrom_fd >= 0) { |
814 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
815 | filesfrom_fd = -1; | |
816 | } | |
817 | ||
40e6752f WD |
818 | strlcpy(olddir, curr_dir, sizeof olddir); |
819 | if (always_checksum) | |
820 | pre_checksum = push_dir(argv[0]); | |
821 | ||
e8a96e27 | 822 | if (write_batch && !am_server) |
b9f592fb | 823 | start_write_batch(f_in); |
9486289c | 824 | flist = recv_file_list(f_in); |
a00628b3 | 825 | the_file_list = flist; |
d9c7edf6 | 826 | |
40e6752f WD |
827 | if (pre_checksum) |
828 | pop_dir(olddir); | |
829 | ||
9d19f8a5 WD |
830 | if (flist && flist->count > 0) { |
831 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 832 | |
9d19f8a5 WD |
833 | status2 = do_recv(f_in, f_out, flist, local_name); |
834 | } else { | |
835 | handle_stats(-1); | |
836 | output_summary(); | |
837 | } | |
d9c7edf6 | 838 | |
9486289c | 839 | if (pid != -1) { |
8d9dc9f9 | 840 | if (verbose > 3) |
08a740ff | 841 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 842 | io_flush(FULL_FLUSH); |
97d8e709 | 843 | wait_process_with_flush(pid, &status); |
9486289c | 844 | } |
d9c7edf6 | 845 | |
ff81e809 | 846 | return MAX(status, status2); |
9486289c AT |
847 | } |
848 | ||
7169bb4a MP |
849 | static int copy_argv (char *argv[]) |
850 | { | |
851 | int i; | |
852 | ||
853 | for (i = 0; argv[i]; i++) { | |
854 | if (!(argv[i] = strdup(argv[i]))) { | |
855 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
856 | __FILE__, __LINE__); | |
857 | return RERR_MALLOC; | |
858 | } | |
859 | } | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
864 | ||
c1a04ecb | 865 | /** |
0ba48136 MP |
866 | * Start a client for either type of remote connection. Work out |
867 | * whether the arguments request a remote shell or rsyncd connection, | |
868 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
869 | * |
870 | * Calls either start_socket_client (for sockets) or do_cmd and | |
871 | * client_run (for ssh). | |
c1a04ecb | 872 | **/ |
fc8a6b97 | 873 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
874 | { |
875 | char *p; | |
876 | char *shell_machine = NULL; | |
877 | char *shell_path = NULL; | |
878 | char *shell_user = NULL; | |
19b27a48 AT |
879 | int ret; |
880 | pid_t pid; | |
5d6bcd44 | 881 | int f_in,f_out; |
7169bb4a MP |
882 | int rc; |
883 | ||
884 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 885 | * command line. */ |
75aeac44 | 886 | if ((rc = copy_argv(argv))) |
7169bb4a | 887 | return rc; |
5d6bcd44 | 888 | |
d16c245f | 889 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 890 | argc--; |
860236bf WD |
891 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
892 | if (shell_path) { /* source is remote */ | |
9425918d WD |
893 | char *dummy1; |
894 | int dummy2; | |
3f7bfac2 | 895 | if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { |
9425918d WD |
896 | rprintf(FERROR, |
897 | "The source and destination cannot both be remote.\n"); | |
898 | exit_cleanup(RERR_SYNTAX); | |
899 | } | |
42ccb4c0 | 900 | argv++; |
860236bf WD |
901 | if (filesfrom_host && *filesfrom_host |
902 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 903 | rprintf(FERROR, |
50b31539 | 904 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
905 | exit_cleanup(RERR_SYNTAX); |
906 | } | |
860236bf | 907 | if (rsync_port) { |
d9c7edf6 | 908 | if (!shell_cmd) { |
860236bf WD |
909 | return start_socket_client(shell_machine, |
910 | shell_path, | |
42ccb4c0 | 911 | argc, argv); |
d9c7edf6 | 912 | } |
d9c7edf6 | 913 | daemon_over_rsh = 1; |
75aeac44 | 914 | } |
3591c066 | 915 | |
42ccb4c0 WD |
916 | am_sender = 0; |
917 | } else { /* source is local, check dest arg */ | |
918 | am_sender = 1; | |
919 | ||
d16c245f | 920 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
921 | usage(FERROR); |
922 | exit_cleanup(RERR_SYNTAX); | |
923 | } | |
a125c82a | 924 | |
42ccb4c0 | 925 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
926 | if (shell_path && filesfrom_host && *filesfrom_host |
927 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 928 | rprintf(FERROR, |
50b31539 | 929 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
930 | exit_cleanup(RERR_SYNTAX); |
931 | } | |
860236bf | 932 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 933 | local_server = 1; |
860236bf | 934 | if (filesfrom_host) { |
7c2a9e76 | 935 | rprintf(FERROR, |
50b31539 | 936 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
937 | exit_cleanup(RERR_SYNTAX); |
938 | } | |
860236bf | 939 | shell_machine = NULL; |
42ccb4c0 | 940 | shell_path = argv[argc]; |
860236bf | 941 | } else if (rsync_port) { |
d9c7edf6 | 942 | if (!shell_cmd) { |
860236bf WD |
943 | return start_socket_client(shell_machine, |
944 | shell_path, | |
42ccb4c0 | 945 | argc, argv); |
d9c7edf6 | 946 | } |
d9c7edf6 | 947 | daemon_over_rsh = 1; |
a125c82a | 948 | } |
5d6bcd44 | 949 | } |
d16c245f | 950 | } else { /* read_batch */ |
d9c7edf6 WD |
951 | local_server = 1; |
952 | shell_path = argv[argc-1]; | |
860236bf | 953 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
954 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
955 | exit_cleanup(RERR_SYNTAX); | |
956 | } | |
6902ed17 MP |
957 | } |
958 | ||
5d6bcd44 | 959 | if (shell_machine) { |
6fc048f4 | 960 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
961 | if (p) { |
962 | *p = 0; | |
963 | shell_user = shell_machine; | |
964 | shell_machine = p+1; | |
965 | } | |
966 | } | |
967 | ||
968 | if (verbose > 3) { | |
9486289c | 969 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
970 | shell_cmd ? safe_fname(shell_cmd) : "", |
971 | shell_machine ? safe_fname(shell_machine) : "", | |
972 | shell_user ? safe_fname(shell_user) : "", | |
973 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 974 | } |
d9c7edf6 | 975 | |
d16c245f | 976 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 977 | if (!am_sender && argc > 1) { |
5d6bcd44 | 978 | usage(FERROR); |
65417579 | 979 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 980 | } |
27e3e9c9 | 981 | |
d16c245f | 982 | /* ... or no dest at all */ |
48a1ff0d WD |
983 | if (!am_sender && argc == 0) |
984 | list_only |= 1; | |
d9c7edf6 | 985 | |
75aeac44 WD |
986 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
987 | &f_in,&f_out); | |
988 | ||
989 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 990 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
991 | if (daemon_over_rsh) { |
992 | int tmpret; | |
993 | tmpret = start_inband_exchange(shell_user, shell_path, | |
994 | f_in, f_out, argc); | |
995 | if (tmpret < 0) | |
996 | return tmpret; | |
997 | } | |
998 | ||
fc8a6b97 AT |
999 | ret = client_run(f_in, f_out, pid, argc, argv); |
1000 | ||
1001 | fflush(stdout); | |
1002 | fflush(stderr); | |
1003 | ||
1004 | return ret; | |
5d6bcd44 AT |
1005 | } |
1006 | ||
366345fe | 1007 | |
067669da WD |
1008 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1009 | { | |
65417579 | 1010 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
1011 | } |
1012 | ||
067669da WD |
1013 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1014 | { | |
33c4b445 WD |
1015 | if (!am_server) |
1016 | output_summary(); | |
40df65fd | 1017 | close_all(); |
33c4b445 WD |
1018 | if (log_got_error) |
1019 | _exit(RERR_PARTIAL); | |
8b35435f AT |
1020 | _exit(0); |
1021 | } | |
1022 | ||
067669da WD |
1023 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1024 | { | |
029c1713 | 1025 | #ifdef WNOHANG |
ee7118a8 DD |
1026 | int cnt, status; |
1027 | pid_t pid; | |
1028 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1029 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1030 | * out we're instead saving the child exit statuses for later use. |
1031 | * The waitpid() loop presumably eliminates all possibility of leaving | |
97d8e709 | 1032 | * zombie children, maybe that's why he did it. */ |
ee7118a8 | 1033 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
9af87151 WD |
1034 | /* save the child's exit status */ |
1035 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1036 | if (pid_stat_table[cnt].pid == 0) { | |
1037 | pid_stat_table[cnt].pid = pid; | |
1038 | pid_stat_table[cnt].status = status; | |
1039 | break; | |
1040 | } | |
1041 | } | |
ee7118a8 | 1042 | } |
029c1713 | 1043 | #endif |
97d8e709 | 1044 | signal(SIGCHLD, sigchld_handler); |
19b27a48 AT |
1045 | } |
1046 | ||
c0531332 MP |
1047 | |
1048 | /** | |
1049 | * This routine catches signals and tries to send them to gdb. | |
1050 | * | |
1051 | * Because it's called from inside a signal handler it ought not to | |
1052 | * use too many library routines. | |
1053 | * | |
1054 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1055 | * debugging without easy access to X. Perhaps use an environment | |
1056 | * variable, or just call a script? | |
1057 | * | |
1058 | * @todo The /proc/ magic probably only works on Linux (and | |
1059 | * Solaris?) Can we be more portable? | |
1060 | **/ | |
1061 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1062 | const char *get_panic_action(void) |
1063 | { | |
1064 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1065 | ||
1066 | if (cmd_fmt) | |
1067 | return cmd_fmt; | |
1068 | else | |
1069 | return "xterm -display :0 -T Panic -n Panic " | |
1070 | "-e gdb /proc/%d/exe %d"; | |
1071 | } | |
1072 | ||
1073 | ||
9fb3f7a9 MP |
1074 | /** |
1075 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1076 | * | |
1077 | * This signal handler is only installed if we were configured with | |
1078 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1079 | * should just look at the environment variable, but I'm a bit leery | |
1080 | * of a signal sending us into a busy loop. | |
1081 | **/ | |
067669da | 1082 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1083 | { |
1084 | char cmd_buf[300]; | |
1085 | int ret; | |
4fdc39dd MP |
1086 | |
1087 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1088 | getpid(), getpid()); |
1089 | ||
1090 | /* Unless we failed to execute gdb, we allow the process to | |
1091 | * continue. I'm not sure if that's right. */ | |
1092 | ret = system(cmd_buf); | |
1093 | if (ret) | |
1094 | _exit(ret); | |
1095 | } | |
1096 | #endif | |
1097 | ||
1098 | ||
5d6bcd44 | 1099 | int main(int argc,char *argv[]) |
d9c7edf6 | 1100 | { |
ff81e809 | 1101 | int ret; |
66a9dc96 WD |
1102 | int orig_argc = argc; |
1103 | char **orig_argv = argv; | |
5d6bcd44 | 1104 | |
7a6421fa | 1105 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1106 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1107 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1108 | #ifdef MAINTAINER_MODE |
1109 | signal(SIGSEGV, rsync_panic_handler); | |
1110 | signal(SIGFPE, rsync_panic_handler); | |
1111 | signal(SIGABRT, rsync_panic_handler); | |
1112 | signal(SIGBUS, rsync_panic_handler); | |
1113 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1114 | |
7a6421fa | 1115 | starttime = time(NULL); |
6fe05820 | 1116 | am_root = (MY_UID() == 0); |
c627d613 | 1117 | |
a800434a AT |
1118 | memset(&stats, 0, sizeof(stats)); |
1119 | ||
df5e03da AT |
1120 | if (argc < 2) { |
1121 | usage(FERROR); | |
65417579 | 1122 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1123 | } |
1124 | ||
7a6421fa | 1125 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1126 | * carried across */ |
7a6421fa | 1127 | orig_umask = (int)umask(0); |
5d6bcd44 | 1128 | |
50135767 | 1129 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1130 | /* FIXME: We ought to call the same error-handling |
1131 | * code here, rather than relying on getopt. */ | |
50135767 | 1132 | option_error(); |
65417579 | 1133 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1134 | } |
5d6bcd44 | 1135 | |
7a6421fa | 1136 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1137 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1138 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1139 | |
34758d5c MP |
1140 | /* Ignore SIGPIPE; we consistently check error codes and will |
1141 | * see the EPIPE. */ | |
1142 | signal(SIGPIPE, SIG_IGN); | |
1143 | ||
d9401514 WD |
1144 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1145 | setlocale(LC_CTYPE, ""); | |
1146 | #endif | |
1147 | ||
c226b7c2 | 1148 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1149 | * (implemented by forking "pwd" and reading its output) doesn't |
1150 | * work when there are other child processes. Also, on all systems | |
1151 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1152 | push_dir(NULL); |
c226b7c2 | 1153 | |
44e9e221 WD |
1154 | init_flist(); |
1155 | ||
e8a96e27 | 1156 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1157 | if (write_batch) |
66a9dc96 | 1158 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1159 | |
dbbab0c4 WD |
1160 | if (read_batch && strcmp(batch_name, "-") == 0) |
1161 | batch_fd = STDIN_FILENO; | |
1162 | else { | |
1163 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1164 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1165 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1166 | } |
b9f592fb WD |
1167 | if (batch_fd < 0) { |
1168 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1169 | full_fname(batch_name)); |
b9f592fb WD |
1170 | exit_cleanup(RERR_FILEIO); |
1171 | } | |
9459290a WD |
1172 | if (read_batch) |
1173 | read_stream_flags(batch_fd); | |
6902ed17 | 1174 | } |
e8a96e27 WD |
1175 | if (write_batch < 0) |
1176 | dry_run = 1; | |
6902ed17 | 1177 | |
75aeac44 | 1178 | if (am_daemon && !am_server) |
7a6421fa | 1179 | return daemon_main(); |
f0fca04e | 1180 | |
08ac228f AT |
1181 | if (argc < 1) { |
1182 | usage(FERROR); | |
65417579 | 1183 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1184 | } |
1185 | ||
7a6421fa | 1186 | if (am_server) { |
f0359dd0 AT |
1187 | set_nonblocking(STDIN_FILENO); |
1188 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1189 | if (am_daemon) |
1190 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1191 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1192 | } | |
c627d613 | 1193 | |
ff81e809 | 1194 | ret = start_client(argc, argv); |
d9c7edf6 | 1195 | if (ret == -1) |
9098bbf3 | 1196 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1197 | else |
9098bbf3 MP |
1198 | exit_cleanup(ret); |
1199 | ||
0f5a04e3 | 1200 | return ret; |
c627d613 | 1201 | } |