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; |
32eda096 | 48 | extern int recurse; |
06b96ffa | 49 | extern int fuzzy_basis; |
32eda096 WD |
50 | extern int relative_paths; |
51 | extern int rsync_port; | |
cb8240a2 | 52 | extern int inplace; |
38e3910b | 53 | extern int make_backups; |
b1df18d7 | 54 | extern int whole_file; |
32eda096 WD |
55 | extern int read_batch; |
56 | extern int write_batch; | |
b9f592fb | 57 | extern int batch_fd; |
c0d8e84c | 58 | extern int batch_gen_fd; |
32eda096 WD |
59 | extern int filesfrom_fd; |
60 | extern pid_t cleanup_child_pid; | |
50839b4b | 61 | extern struct stats stats; |
860236bf | 62 | extern char *filesfrom_host; |
7162c65d | 63 | extern char *partial_dir; |
c3fad2e2 | 64 | extern char *basis_dir[]; |
32eda096 WD |
65 | extern char *rsync_path; |
66 | extern char *shell_cmd; | |
9b3318b0 | 67 | extern char *batch_name; |
57dee64e WD |
68 | |
69 | int local_server = 0; | |
a00628b3 | 70 | struct file_list *the_file_list; |
c627d613 | 71 | |
91c5833b WD |
72 | /* There's probably never more than at most 2 outstanding child processes, |
73 | * but set it higher, just in case. */ | |
ee7118a8 DD |
74 | #define MAXCHILDPROCS 5 |
75 | ||
76 | struct pid_status { | |
77 | pid_t pid; | |
78 | int status; | |
79 | } pid_stat_table[MAXCHILDPROCS]; | |
80 | ||
33c4b445 WD |
81 | static time_t starttime, endtime; |
82 | static int64 total_read, total_written; | |
83 | ||
e5a2b854 | 84 | static void show_malloc_stats(void); |
82980a23 AT |
85 | |
86 | /**************************************************************************** | |
87 | wait for a process to exit, calling io_flush while waiting | |
88 | ****************************************************************************/ | |
89 | void wait_process(pid_t pid, int *status) | |
90 | { | |
ee7118a8 DD |
91 | pid_t waited_pid; |
92 | int cnt; | |
93 | ||
94 | while ((waited_pid = waitpid(pid, status, WNOHANG)) == 0) { | |
a24c6870 | 95 | msleep(20); |
f1e3656e | 96 | io_flush(FULL_FLUSH); |
82980a23 | 97 | } |
d9c7edf6 | 98 | |
6fb812f7 | 99 | if (waited_pid == -1 && errno == ECHILD) { |
ee7118a8 DD |
100 | /* status of requested child no longer available. |
101 | * check to see if it was processed by the sigchld_handler. | |
102 | */ | |
103 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
104 | if (pid == pid_stat_table[cnt].pid) { | |
105 | *status = pid_stat_table[cnt].status; | |
106 | pid_stat_table[cnt].pid = 0; | |
107 | break; | |
108 | } | |
109 | } | |
110 | } | |
111 | ||
d9c7edf6 WD |
112 | /* TODO: If the child exited on a signal, then log an |
113 | * appropriate error message. Perhaps we should also accept a | |
114 | * message describing the purpose of the child. Also indicate | |
115 | * this to the caller so that thhey know something went | |
116 | * wrong. */ | |
82980a23 AT |
117 | *status = WEXITSTATUS(*status); |
118 | } | |
119 | ||
b9f592fb WD |
120 | /* This function gets called from all 3 processes. We want the client side |
121 | * to actually output the text, but the sender is the only process that has | |
122 | * all the stats we need. So, if we're a client sender, we do the report. | |
123 | * If we're a server sender, we write the stats on the supplied fd. If | |
124 | * we're the client receiver we read the stats from the supplied fd and do | |
125 | * the report. All processes might also generate a set of debug stats, if | |
126 | * the verbose level is high enough (this is the only thing that the | |
127 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 128 | static void handle_stats(int f) |
c627d613 | 129 | { |
33c4b445 WD |
130 | endtime = time(NULL); |
131 | ||
b9f592fb | 132 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
133 | total_read = stats.total_read; |
134 | total_written = stats.total_written; | |
7a6421fa | 135 | |
7bb7058e | 136 | if (do_stats && verbose > 1) { |
5c15e29f | 137 | /* These come out from every process */ |
7bb7058e | 138 | show_malloc_stats(); |
86943126 | 139 | show_flist_stats(); |
5c15e29f MP |
140 | } |
141 | ||
e5fbaa71 S |
142 | if (am_generator) |
143 | return; | |
144 | ||
248fbb8c | 145 | if (am_daemon) { |
a9766ef1 | 146 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
147 | if (f == -1 || !am_sender) |
148 | return; | |
248fbb8c AT |
149 | } |
150 | ||
e19452a9 | 151 | if (am_server) { |
3e491682 | 152 | if (am_sender) { |
b9f592fb WD |
153 | write_longint(f, total_read); |
154 | write_longint(f, total_written); | |
155 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
156 | if (protocol_version >= 29) { |
157 | write_longint(f, stats.flist_buildtime); | |
158 | write_longint(f, stats.flist_xfertime); | |
159 | } | |
e19452a9 | 160 | } |
7a6421fa AT |
161 | return; |
162 | } | |
e19452a9 DD |
163 | |
164 | /* this is the client */ | |
d9c7edf6 | 165 | |
9d19f8a5 WD |
166 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
167 | ; | |
168 | else if (!am_sender) { | |
58c5c245 WD |
169 | /* Read the first two in opposite order because the meaning of |
170 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
171 | total_written = read_longint(f); |
172 | total_read = read_longint(f); | |
a800434a | 173 | stats.total_size = read_longint(f); |
f0f7e760 WD |
174 | if (protocol_version >= 29) { |
175 | stats.flist_buildtime = read_longint(f); | |
176 | stats.flist_xfertime = read_longint(f); | |
177 | } | |
e8a96e27 | 178 | } else if (write_batch && !am_server) { |
b9f592fb WD |
179 | /* The --read-batch process is going to be a client |
180 | * receiver, so we need to give it the stats. */ | |
181 | write_longint(batch_fd, total_read); | |
182 | write_longint(batch_fd, total_written); | |
183 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
184 | if (protocol_version >= 29) { |
185 | write_longint(batch_fd, stats.flist_buildtime); | |
186 | write_longint(batch_fd, stats.flist_xfertime); | |
187 | } | |
a800434a AT |
188 | } |
189 | ||
190 | if (do_stats) { | |
1f658d42 | 191 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
192 | rprintf(FINFO,"Number of files transferred: %d\n", |
193 | stats.num_transferred_files); | |
194 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
195 | (double)stats.total_size); | |
196 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
197 | (double)stats.total_transferred_size); | |
198 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
199 | (double)stats.literal_data); | |
200 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
201 | (double)stats.matched_data); | |
1f658d42 | 202 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
203 | if (stats.flist_buildtime) { |
204 | rprintf(FINFO, | |
205 | "File list generation time: %.3f seconds\n", | |
206 | (double)stats.flist_buildtime / 1000); | |
207 | rprintf(FINFO, | |
208 | "File list transfer time: %.3f seconds\n", | |
209 | (double)stats.flist_xfertime / 1000); | |
210 | } | |
4de2a174 | 211 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 212 | (double)total_written); |
4de2a174 | 213 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 214 | (double)total_read); |
7a6421fa | 215 | } |
d9c7edf6 | 216 | |
33c4b445 WD |
217 | fflush(stdout); |
218 | fflush(stderr); | |
219 | } | |
220 | ||
221 | static void output_summary(void) | |
222 | { | |
e19452a9 | 223 | if (verbose || do_stats) { |
b9f592fb | 224 | rprintf(FINFO, |
4de2a174 | 225 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb | 226 | (double)total_written, (double)total_read, |
33c4b445 | 227 | (total_written + total_read)/(0.5 + (endtime - starttime))); |
b9f592fb | 228 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", |
d9c7edf6 | 229 | (double)stats.total_size, |
b9f592fb | 230 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 231 | } |
fc8a6b97 AT |
232 | |
233 | fflush(stdout); | |
234 | fflush(stderr); | |
c627d613 AT |
235 | } |
236 | ||
237 | ||
e5a2b854 MP |
238 | /** |
239 | * If our C library can get malloc statistics, then show them to FINFO | |
240 | **/ | |
241 | static void show_malloc_stats(void) | |
242 | { | |
4f5b0756 | 243 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
244 | struct mallinfo mi; |
245 | ||
246 | mi = mallinfo(); | |
247 | ||
ce672562 | 248 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
249 | getpid(), am_server ? "server " : "", |
250 | am_daemon ? "daemon " : "", who_am_i()); | |
251 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
252 | (long)mi.arena); | |
253 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
254 | (long)mi.ordblks); | |
255 | rprintf(FINFO, " smblks: %10ld\n", | |
256 | (long)mi.smblks); | |
257 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
258 | (long)mi.hblks); | |
259 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
260 | (long)mi.hblkhd); | |
261 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
262 | (long)mi.arena + mi.hblkhd); | |
263 | rprintf(FINFO, " usmblks: %10ld\n", | |
264 | (long)mi.usmblks); | |
265 | rprintf(FINFO, " fsmblks: %10ld\n", | |
266 | (long)mi.fsmblks); | |
267 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
268 | (long)mi.uordblks); | |
269 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
270 | (long)mi.fordblks); | |
271 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
272 | (long)mi.keepcost); | |
e5a2b854 MP |
273 | #endif /* HAVE_MALLINFO */ |
274 | } | |
275 | ||
276 | ||
0882faa2 | 277 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
278 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
279 | int *f_in, int *f_out) | |
c627d613 | 280 | { |
6c2e5b56 | 281 | int i, argc = 0; |
887e553f | 282 | char *args[MAX_ARGS]; |
19b27a48 | 283 | pid_t ret; |
6c2e5b56 | 284 | char *tok, *dir = NULL; |
bb4aa89c | 285 | int dash_l_set = 0; |
366345fe | 286 | |
088aac85 | 287 | if (!read_batch && !local_server) { |
9af87151 | 288 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 289 | if (!cmd) |
9af87151 | 290 | cmd = rsh_env; |
366345fe AT |
291 | if (!cmd) |
292 | cmd = RSYNC_RSH; | |
293 | cmd = strdup(cmd); | |
d9c7edf6 | 294 | if (!cmd) |
366345fe AT |
295 | goto oom; |
296 | ||
887e553f | 297 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 WD |
298 | /* Comparison leaves rooms for server_options(). */ |
299 | if (argc >= MAX_ARGS - 100) { | |
300 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
887e553f WD |
301 | exit_cleanup(RERR_SYNTAX); |
302 | } | |
366345fe | 303 | args[argc++] = tok; |
887e553f | 304 | } |
c627d613 | 305 | |
d9c7edf6 | 306 | /* check to see if we've already been given '-l user' in |
9af87151 | 307 | * the remote-shell command */ |
bb4aa89c WD |
308 | for (i = 0; i < argc-1; i++) { |
309 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
310 | dash_l_set = 1; | |
311 | } | |
312 | ||
4f5b0756 | 313 | #ifdef HAVE_REMSH |
366345fe AT |
314 | /* remsh (on HPUX) takes the arguments the other way around */ |
315 | args[argc++] = machine; | |
bb4aa89c | 316 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
317 | args[argc++] = "-l"; |
318 | args[argc++] = user; | |
319 | } | |
7b8356d0 | 320 | #else |
bb4aa89c | 321 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
322 | args[argc++] = "-l"; |
323 | args[argc++] = user; | |
324 | } | |
325 | args[argc++] = machine; | |
7b8356d0 | 326 | #endif |
c627d613 | 327 | |
366345fe | 328 | args[argc++] = rsync_path; |
c627d613 | 329 | |
9af87151 | 330 | if (blocking_io < 0) { |
90e22f4b WD |
331 | char *cp; |
332 | if ((cp = strrchr(cmd, '/')) != NULL) | |
333 | cp++; | |
334 | else | |
335 | cp = cmd; | |
336 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
337 | blocking_io = 1; | |
66b71163 | 338 | } |
e384bfbd | 339 | |
93689aa5 | 340 | server_options(args,&argc); |
e7a392c7 WD |
341 | |
342 | if (argc >= MAX_ARGS - 2) { | |
343 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
344 | exit_cleanup(RERR_SYNTAX); | |
345 | } | |
366345fe | 346 | } |
c627d613 | 347 | |
366345fe | 348 | args[argc++] = "."; |
76076c4b | 349 | |
d9c7edf6 | 350 | if (!daemon_over_rsh && path && *path) |
366345fe | 351 | args[argc++] = path; |
c627d613 | 352 | |
366345fe | 353 | args[argc] = NULL; |
c627d613 | 354 | |
366345fe | 355 | if (verbose > 3) { |
9486289c | 356 | rprintf(FINFO,"cmd="); |
e7a392c7 | 357 | for (i = 0; i < argc; i++) |
71903f60 | 358 | rprintf(FINFO, "%s ", safe_fname(args[i])); |
9486289c | 359 | rprintf(FINFO,"\n"); |
366345fe AT |
360 | } |
361 | ||
c0d8e84c WD |
362 | if (read_batch) { |
363 | int from_gen_pipe[2]; | |
364 | if (fd_pair(from_gen_pipe) < 0) { | |
365 | rsyserr(FERROR, errno, "pipe"); | |
366 | exit_cleanup(RERR_IPC); | |
367 | } | |
368 | batch_gen_fd = from_gen_pipe[0]; | |
369 | *f_out = from_gen_pipe[1]; | |
370 | *f_in = batch_fd; | |
371 | ret = -1; /* no child pid */ | |
372 | } else if (local_server) { | |
b1df18d7 WD |
373 | /* If the user didn't request --[no-]whole-file, force |
374 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 375 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 376 | whole_file = 1; |
25d34a5c | 377 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 378 | } else |
366345fe | 379 | ret = piped_child(args,f_in,f_out); |
c627d613 | 380 | |
3a69fad0 WD |
381 | if (dir) |
382 | free(dir); | |
82306bf6 | 383 | |
366345fe | 384 | return ret; |
c627d613 AT |
385 | |
386 | oom: | |
366345fe AT |
387 | out_of_memory("do_cmd"); |
388 | return 0; /* not reached */ | |
c627d613 AT |
389 | } |
390 | ||
391 | ||
c627d613 AT |
392 | static char *get_local_name(struct file_list *flist,char *name) |
393 | { | |
7a6421fa | 394 | STRUCT_STAT st; |
87cc45e1 | 395 | int e; |
c627d613 | 396 | |
c95da96a | 397 | if (verbose > 2) |
d9c7edf6 | 398 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
399 | flist->count, NS(name)); |
400 | ||
d9c7edf6 | 401 | if (!name) |
1f0610ef | 402 | return NULL; |
c95da96a | 403 | |
1ff5450d AT |
404 | if (do_stat(name,&st) == 0) { |
405 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 406 | if (!push_dir(name)) { |
982e05bb WD |
407 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
408 | full_fname(name)); | |
65417579 | 409 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
410 | } |
411 | return NULL; | |
412 | } | |
413 | if (flist->count > 1) { | |
414 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 415 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
416 | } |
417 | return name; | |
418 | } | |
419 | ||
87cc45e1 | 420 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
421 | return name; |
422 | ||
1ff5450d | 423 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 424 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 425 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
426 | } |
427 | if (verbose > 0) | |
71903f60 | 428 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
429 | |
430 | if (dry_run) { | |
431 | dry_run++; | |
432 | return NULL; | |
1ff5450d AT |
433 | } |
434 | ||
59187666 | 435 | if (!push_dir(name)) { |
982e05bb WD |
436 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
437 | full_fname(name)); | |
65417579 | 438 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
439 | } |
440 | ||
441 | return NULL; | |
c627d613 AT |
442 | } |
443 | ||
444 | ||
1a8e5c97 | 445 | /* This is only called by the sender. */ |
3485ae83 | 446 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 447 | { |
1a8e5c97 WD |
448 | int i; |
449 | ||
450 | if (protocol_version < 29) | |
451 | i = read_int(f_in); | |
452 | else { | |
3485ae83 | 453 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
454 | && read_shortint(f_in) == ITEM_IS_NEW) { |
455 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 456 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
457 | write_shortint(f_out, ITEM_IS_NEW); |
458 | } | |
4e0fcd85 WD |
459 | } |
460 | ||
1a8e5c97 | 461 | if (i != -1) { |
c7791b8c WD |
462 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
463 | i, who_am_i()); | |
1a8e5c97 | 464 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
465 | } |
466 | } | |
467 | ||
468 | ||
9486289c | 469 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 470 | { |
7a6421fa AT |
471 | int i; |
472 | struct file_list *flist; | |
473 | char *dir = argv[0]; | |
c627d613 | 474 | |
45e08edb WD |
475 | if (verbose > 2) { |
476 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
477 | (long)getpid()); | |
478 | } | |
d9c7edf6 | 479 | |
2adbcdc7 | 480 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
481 | rprintf(FERROR, "ERROR: module is write only\n"); |
482 | exit_cleanup(RERR_SYNTAX); | |
483 | return; | |
484 | } | |
bf26aa22 WD |
485 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
486 | rprintf(FERROR, | |
487 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
488 | exit_cleanup(RERR_SYNTAX); | |
489 | return; | |
490 | } | |
7a92ded3 | 491 | |
59187666 | 492 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
493 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
494 | full_fname(dir)); | |
65417579 | 495 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
496 | } |
497 | argc--; | |
498 | argv++; | |
d9c7edf6 | 499 | |
7a6421fa AT |
500 | if (strcmp(dir,".")) { |
501 | int l = strlen(dir); | |
d9c7edf6 | 502 | if (strcmp(dir,"/") == 0) |
7a6421fa | 503 | l = 0; |
e7a392c7 | 504 | for (i = 0; i < argc; i++) |
7a6421fa AT |
505 | argv[i] += l+1; |
506 | } | |
c627d613 | 507 | |
48a1ff0d | 508 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 509 | argc = 1; |
7a6421fa AT |
510 | argv--; |
511 | argv[0] = "."; | |
512 | } | |
d9c7edf6 | 513 | |
7a6421fa | 514 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
515 | if (!flist || flist->count == 0) { |
516 | exit_cleanup(0); | |
517 | } | |
a00628b3 | 518 | the_file_list = flist; |
8d9dc9f9 | 519 | |
da3478b2 WD |
520 | io_start_buffering_in(); |
521 | io_start_buffering_out(); | |
522 | ||
7a6421fa | 523 | send_files(flist,f_out,f_in); |
f1e3656e | 524 | io_flush(FULL_FLUSH); |
33c4b445 | 525 | handle_stats(f_out); |
4e0fcd85 | 526 | if (protocol_version >= 24) |
3485ae83 | 527 | read_final_goodbye(f_in, f_out); |
f1e3656e | 528 | io_flush(FULL_FLUSH); |
7a6421fa | 529 | exit_cleanup(0); |
c627d613 AT |
530 | } |
531 | ||
532 | ||
dc5ddbcc AT |
533 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
534 | { | |
d186eb1a | 535 | int pid; |
e1f67417 | 536 | int status = 0; |
c70e07d9 | 537 | int error_pipe[2]; |
dc5ddbcc | 538 | |
bb6721dc WD |
539 | /* The receiving side mustn't obey this, or an existing symlink that |
540 | * points to an identical file won't be replaced by the referent. */ | |
541 | copy_links = 0; | |
542 | ||
d186eb1a | 543 | if (preserve_hard_links) |
3485ae83 | 544 | init_hard_links(); |
dc5ddbcc | 545 | |
c70e07d9 | 546 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 547 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 548 | exit_cleanup(RERR_IPC); |
554e0a8d | 549 | } |
d9c7edf6 | 550 | |
f1e3656e | 551 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 552 | |
ba449e44 | 553 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 554 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
555 | exit_cleanup(RERR_IPC); |
556 | } | |
557 | ||
558 | if (pid == 0) { | |
554e0a8d | 559 | close(error_pipe[0]); |
3a69fad0 WD |
560 | if (f_in != f_out) |
561 | close(f_out); | |
e08c9610 | 562 | |
554e0a8d | 563 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 564 | close_multiplexing_out(); |
554e0a8d AT |
565 | |
566 | /* set place to send errors */ | |
f1e3656e | 567 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 568 | |
c70e07d9 | 569 | recv_files(f_in, flist, local_name); |
f1e3656e | 570 | io_flush(FULL_FLUSH); |
33c4b445 | 571 | handle_stats(f_in); |
e08c9610 | 572 | |
f1e3656e WD |
573 | send_msg(MSG_DONE, "", 0); |
574 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 575 | |
40df65fd WD |
576 | /* Handle any keep-alive packets from the post-processing work |
577 | * that the generator does. */ | |
4e0fcd85 | 578 | if (protocol_version >= 29) { |
051182cb | 579 | kluge_around_eof = -1; |
1a8e5c97 WD |
580 | |
581 | /* This should only get stopped via a USR2 signal. */ | |
582 | while (read_int(f_in) == flist->count | |
583 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
584 | ||
3485ae83 WD |
585 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
586 | who_am_i()); | |
1a8e5c97 | 587 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
588 | } |
589 | ||
9e0582f9 WD |
590 | /* Finally, we go to sleep until our parent kills us with a |
591 | * USR2 signal. We sleep for a short time, as on some OSes | |
592 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
593 | while (1) |
594 | msleep(20); | |
d186eb1a | 595 | } |
dc5ddbcc | 596 | |
b695f242 | 597 | am_generator = 1; |
9eeb3b9c | 598 | close_multiplexing_in(); |
e8a96e27 | 599 | if (write_batch && !am_server) |
b9f592fb | 600 | stop_write_batch(); |
b695f242 | 601 | |
554e0a8d | 602 | close(error_pipe[1]); |
3a69fad0 WD |
603 | if (f_in != f_out) |
604 | close(f_in); | |
e1b3d5c4 | 605 | |
da3478b2 | 606 | io_start_buffering_out(); |
b3e10ed7 | 607 | |
f1e3656e | 608 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 609 | |
c70e07d9 | 610 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 611 | |
33c4b445 | 612 | handle_stats(-1); |
f1e3656e | 613 | io_flush(FULL_FLUSH); |
d04e9c51 | 614 | if (protocol_version >= 24) { |
8ada7518 AT |
615 | /* send a final goodbye message */ |
616 | write_int(f_out, -1); | |
617 | } | |
f1e3656e | 618 | io_flush(FULL_FLUSH); |
8ada7518 | 619 | |
f1e3656e | 620 | set_msg_fd_in(-1); |
089a2435 | 621 | kill(pid, SIGUSR2); |
d79d1c69 | 622 | wait_process(pid, &status); |
d186eb1a | 623 | return status; |
dc5ddbcc AT |
624 | } |
625 | ||
c627d613 | 626 | |
9486289c | 627 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 628 | { |
7a6421fa AT |
629 | int status; |
630 | struct file_list *flist; | |
6c2e5b56 | 631 | char *local_name = NULL; |
7a6421fa | 632 | char *dir = NULL; |
07bff66f WD |
633 | int save_verbose = verbose; |
634 | ||
635 | if (filesfrom_fd >= 0) { | |
636 | /* We can't mix messages with files-from data on the socket, | |
637 | * so temporarily turn off verbose messages. */ | |
638 | verbose = 0; | |
639 | } | |
f0fca04e | 640 | |
45e08edb WD |
641 | if (verbose > 2) { |
642 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
643 | argc, (long)getpid()); | |
644 | } | |
09b7f5db | 645 | |
2adbcdc7 | 646 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
647 | rprintf(FERROR,"ERROR: module is read only\n"); |
648 | exit_cleanup(RERR_SYNTAX); | |
649 | return; | |
650 | } | |
651 | ||
d9c7edf6 | 652 | |
7a6421fa AT |
653 | if (argc > 0) { |
654 | dir = argv[0]; | |
655 | argc--; | |
656 | argv++; | |
59187666 | 657 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
658 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
659 | full_fname(dir)); | |
65417579 | 660 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 661 | } |
7a6421fa | 662 | } |
c627d613 | 663 | |
da3478b2 | 664 | io_start_buffering_in(); |
57dee64e | 665 | recv_filter_list(f_in); |
c627d613 | 666 | |
7c2a9e76 | 667 | if (filesfrom_fd >= 0) { |
07bff66f WD |
668 | /* We need to send the files-from names to the sender at the |
669 | * same time that we receive the file-list from them, so we | |
670 | * need the IO routines to automatically write out the names | |
671 | * onto our f_out socket as we read the file-list. This | |
672 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
673 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
674 | filesfrom_fd = -1; | |
675 | } | |
676 | ||
b9f592fb | 677 | flist = recv_file_list(f_in); |
07bff66f | 678 | verbose = save_verbose; |
4c36a13e AT |
679 | if (!flist) { |
680 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 681 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 682 | } |
a00628b3 | 683 | the_file_list = flist; |
d9c7edf6 WD |
684 | |
685 | if (argc > 0) { | |
7a6421fa AT |
686 | if (strcmp(dir,".")) { |
687 | argv[0] += strlen(dir); | |
3a69fad0 WD |
688 | if (argv[0][0] == '/') |
689 | argv[0]++; | |
7a6421fa AT |
690 | } |
691 | local_name = get_local_name(flist,argv[0]); | |
692 | } | |
c627d613 | 693 | |
7a6421fa AT |
694 | status = do_recv(f_in,f_out,flist,local_name); |
695 | exit_cleanup(status); | |
c627d613 AT |
696 | } |
697 | ||
698 | ||
734a94a2 | 699 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
700 | { |
701 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 702 | return 0; |
25d34a5c MP |
703 | } |
704 | ||
705 | ||
9486289c | 706 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 707 | { |
f0359dd0 AT |
708 | set_nonblocking(f_in); |
709 | set_nonblocking(f_out); | |
710 | ||
da3478b2 WD |
711 | io_set_sock_fds(f_in, f_out); |
712 | setup_protocol(f_out, f_in); | |
713 | ||
d04e9c51 | 714 | if (protocol_version >= 23) |
da3478b2 | 715 | io_start_multiplex_out(); |
7a6421fa | 716 | |
7a6421fa | 717 | if (am_sender) { |
83926d3c | 718 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
719 | if (need_messages_from_generator) |
720 | io_start_multiplex_in(); | |
9b3318b0 | 721 | |
7842418b | 722 | recv_filter_list(f_in); |
7a6421fa AT |
723 | do_server_sender(f_in, f_out, argc, argv); |
724 | } else { | |
725 | do_server_recv(f_in, f_out, argc, argv); | |
726 | } | |
727 | exit_cleanup(0); | |
366345fe AT |
728 | } |
729 | ||
0ba48136 MP |
730 | |
731 | /* | |
732 | * This is called once the connection has been negotiated. It is used | |
733 | * for rsyncd, remote-shell, and local connections. | |
734 | */ | |
19b27a48 | 735 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 736 | { |
088aac85 | 737 | struct file_list *flist = NULL; |
9486289c AT |
738 | int status = 0, status2 = 0; |
739 | char *local_name = NULL; | |
19b27a48 AT |
740 | |
741 | cleanup_child_pid = pid; | |
67a28eb2 | 742 | if (!read_batch) { |
b9f592fb WD |
743 | set_nonblocking(f_in); |
744 | set_nonblocking(f_out); | |
745 | } | |
f0359dd0 | 746 | |
da3478b2 | 747 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
748 | setup_protocol(f_out,f_in); |
749 | ||
b9f592fb | 750 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 751 | io_start_multiplex_in(); |
d9c7edf6 | 752 | |
18882701 WD |
753 | /* We set our stderr file handle to blocking because ssh might have |
754 | * set it to non-blocking. This can be particularly troublesome if | |
755 | * stderr is a clone of stdout, because ssh would have set our stdout | |
756 | * to non-blocking at the same time (which can easily cause us to lose | |
757 | * output from our print statements). This kluge shouldn't cause ssh | |
758 | * any problems for how we use it. Note also that we delayed setting | |
759 | * this until after the above protocol setup so that we know for sure | |
760 | * that ssh is done twiddling its file descriptors. */ | |
761 | set_blocking(STDERR_FILENO); | |
762 | ||
9486289c | 763 | if (am_sender) { |
83926d3c | 764 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 765 | io_start_buffering_out(); |
860236bf | 766 | if (!filesfrom_host) |
a0a33ee5 | 767 | set_msg_fd_in(f_in); |
57dee64e | 768 | send_filter_list(f_out); |
860236bf | 769 | if (filesfrom_host) |
7c2a9e76 | 770 | filesfrom_fd = f_in; |
b9f592fb | 771 | |
e8a96e27 | 772 | if (write_batch && !am_server) |
b9f592fb | 773 | start_write_batch(f_out); |
a00628b3 | 774 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 775 | set_msg_fd_in(-1); |
d9c7edf6 | 776 | if (verbose > 3) |
9486289c | 777 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 778 | the_file_list = flist; |
e1b3d5c4 | 779 | |
f1e3656e | 780 | io_flush(NORMAL_FLUSH); |
9486289c | 781 | send_files(flist,f_out,f_in); |
f1e3656e | 782 | io_flush(FULL_FLUSH); |
33c4b445 | 783 | handle_stats(-1); |
4e0fcd85 | 784 | if (protocol_version >= 24) |
3485ae83 | 785 | read_final_goodbye(f_in, f_out); |
9486289c AT |
786 | if (pid != -1) { |
787 | if (verbose > 3) | |
08a740ff | 788 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 789 | io_flush(FULL_FLUSH); |
d79d1c69 | 790 | wait_process(pid, &status); |
9486289c | 791 | } |
33c4b445 | 792 | output_summary(); |
c87ae64a | 793 | io_flush(FULL_FLUSH); |
9486289c AT |
794 | exit_cleanup(status); |
795 | } | |
f7632fc6 | 796 | |
bf26aa22 WD |
797 | if (need_messages_from_generator && !read_batch) |
798 | io_start_multiplex_out(); | |
799 | ||
48a1ff0d WD |
800 | if (argc == 0) |
801 | list_only |= 1; | |
d9c7edf6 | 802 | |
57dee64e | 803 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 804 | |
7c2a9e76 WD |
805 | if (filesfrom_fd >= 0) { |
806 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
807 | filesfrom_fd = -1; | |
808 | } | |
809 | ||
e8a96e27 | 810 | if (write_batch && !am_server) |
b9f592fb | 811 | start_write_batch(f_in); |
9486289c | 812 | flist = recv_file_list(f_in); |
a00628b3 | 813 | the_file_list = flist; |
d9c7edf6 | 814 | |
9d19f8a5 WD |
815 | if (flist && flist->count > 0) { |
816 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 817 | |
9d19f8a5 WD |
818 | status2 = do_recv(f_in, f_out, flist, local_name); |
819 | } else { | |
820 | handle_stats(-1); | |
821 | output_summary(); | |
822 | } | |
d9c7edf6 | 823 | |
9486289c | 824 | if (pid != -1) { |
8d9dc9f9 | 825 | if (verbose > 3) |
08a740ff | 826 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 827 | io_flush(FULL_FLUSH); |
d79d1c69 | 828 | wait_process(pid, &status); |
9486289c | 829 | } |
d9c7edf6 | 830 | |
ff81e809 | 831 | return MAX(status, status2); |
9486289c AT |
832 | } |
833 | ||
7169bb4a MP |
834 | static int copy_argv (char *argv[]) |
835 | { | |
836 | int i; | |
837 | ||
838 | for (i = 0; argv[i]; i++) { | |
839 | if (!(argv[i] = strdup(argv[i]))) { | |
840 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
841 | __FILE__, __LINE__); | |
842 | return RERR_MALLOC; | |
843 | } | |
844 | } | |
845 | ||
846 | return 0; | |
847 | } | |
848 | ||
849 | ||
c1a04ecb | 850 | /** |
0ba48136 MP |
851 | * Start a client for either type of remote connection. Work out |
852 | * whether the arguments request a remote shell or rsyncd connection, | |
853 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
854 | * |
855 | * Calls either start_socket_client (for sockets) or do_cmd and | |
856 | * client_run (for ssh). | |
c1a04ecb | 857 | **/ |
fc8a6b97 | 858 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
859 | { |
860 | char *p; | |
861 | char *shell_machine = NULL; | |
862 | char *shell_path = NULL; | |
863 | char *shell_user = NULL; | |
19b27a48 AT |
864 | int ret; |
865 | pid_t pid; | |
5d6bcd44 | 866 | int f_in,f_out; |
7169bb4a MP |
867 | int rc; |
868 | ||
869 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 870 | * command line. */ |
75aeac44 | 871 | if ((rc = copy_argv(argv))) |
7169bb4a | 872 | return rc; |
5d6bcd44 | 873 | |
d16c245f | 874 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 875 | argc--; |
860236bf WD |
876 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
877 | if (shell_path) { /* source is remote */ | |
42ccb4c0 | 878 | argv++; |
860236bf WD |
879 | if (filesfrom_host && *filesfrom_host |
880 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 881 | rprintf(FERROR, |
50b31539 | 882 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
883 | exit_cleanup(RERR_SYNTAX); |
884 | } | |
860236bf | 885 | if (rsync_port) { |
d9c7edf6 | 886 | if (!shell_cmd) { |
860236bf WD |
887 | return start_socket_client(shell_machine, |
888 | shell_path, | |
42ccb4c0 | 889 | argc, argv); |
d9c7edf6 | 890 | } |
d9c7edf6 | 891 | daemon_over_rsh = 1; |
75aeac44 | 892 | } |
3591c066 | 893 | |
42ccb4c0 WD |
894 | am_sender = 0; |
895 | } else { /* source is local, check dest arg */ | |
896 | am_sender = 1; | |
897 | ||
d16c245f | 898 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
899 | usage(FERROR); |
900 | exit_cleanup(RERR_SYNTAX); | |
901 | } | |
a125c82a | 902 | |
42ccb4c0 | 903 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
904 | if (shell_path && filesfrom_host && *filesfrom_host |
905 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 906 | rprintf(FERROR, |
50b31539 | 907 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
908 | exit_cleanup(RERR_SYNTAX); |
909 | } | |
860236bf | 910 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 911 | local_server = 1; |
860236bf | 912 | if (filesfrom_host) { |
7c2a9e76 | 913 | rprintf(FERROR, |
50b31539 | 914 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
915 | exit_cleanup(RERR_SYNTAX); |
916 | } | |
860236bf | 917 | shell_machine = NULL; |
42ccb4c0 | 918 | shell_path = argv[argc]; |
860236bf | 919 | } else if (rsync_port) { |
d9c7edf6 | 920 | if (!shell_cmd) { |
860236bf WD |
921 | return start_socket_client(shell_machine, |
922 | shell_path, | |
42ccb4c0 | 923 | argc, argv); |
d9c7edf6 | 924 | } |
d9c7edf6 | 925 | daemon_over_rsh = 1; |
a125c82a | 926 | } |
5d6bcd44 | 927 | } |
d16c245f | 928 | } else { /* read_batch */ |
d9c7edf6 WD |
929 | local_server = 1; |
930 | shell_path = argv[argc-1]; | |
860236bf | 931 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
932 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
933 | exit_cleanup(RERR_SYNTAX); | |
934 | } | |
6902ed17 MP |
935 | } |
936 | ||
5d6bcd44 | 937 | if (shell_machine) { |
6fc048f4 | 938 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
939 | if (p) { |
940 | *p = 0; | |
941 | shell_user = shell_machine; | |
942 | shell_machine = p+1; | |
943 | } | |
944 | } | |
945 | ||
946 | if (verbose > 3) { | |
9486289c | 947 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
948 | shell_cmd ? safe_fname(shell_cmd) : "", |
949 | shell_machine ? safe_fname(shell_machine) : "", | |
950 | shell_user ? safe_fname(shell_user) : "", | |
951 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 952 | } |
d9c7edf6 | 953 | |
d16c245f | 954 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 955 | if (!am_sender && argc > 1) { |
5d6bcd44 | 956 | usage(FERROR); |
65417579 | 957 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 958 | } |
27e3e9c9 | 959 | |
d16c245f | 960 | /* ... or no dest at all */ |
48a1ff0d WD |
961 | if (!am_sender && argc == 0) |
962 | list_only |= 1; | |
d9c7edf6 | 963 | |
75aeac44 WD |
964 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
965 | &f_in,&f_out); | |
966 | ||
967 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 968 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
969 | if (daemon_over_rsh) { |
970 | int tmpret; | |
971 | tmpret = start_inband_exchange(shell_user, shell_path, | |
972 | f_in, f_out, argc); | |
973 | if (tmpret < 0) | |
974 | return tmpret; | |
975 | } | |
976 | ||
fc8a6b97 AT |
977 | ret = client_run(f_in, f_out, pid, argc, argv); |
978 | ||
979 | fflush(stdout); | |
980 | fflush(stderr); | |
981 | ||
982 | return ret; | |
5d6bcd44 AT |
983 | } |
984 | ||
366345fe | 985 | |
067669da WD |
986 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
987 | { | |
65417579 | 988 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
989 | } |
990 | ||
067669da WD |
991 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
992 | { | |
33c4b445 WD |
993 | if (!am_server) |
994 | output_summary(); | |
40df65fd | 995 | close_all(); |
33c4b445 WD |
996 | if (log_got_error) |
997 | _exit(RERR_PARTIAL); | |
8b35435f AT |
998 | _exit(0); |
999 | } | |
1000 | ||
067669da WD |
1001 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1002 | { | |
029c1713 | 1003 | #ifdef WNOHANG |
ee7118a8 DD |
1004 | int cnt, status; |
1005 | pid_t pid; | |
1006 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1007 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1008 | * out we're instead saving the child exit statuses for later use. |
1009 | * The waitpid() loop presumably eliminates all possibility of leaving | |
1010 | * zombie children, maybe that's why he did it. | |
1011 | */ | |
1012 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
9af87151 WD |
1013 | /* save the child's exit status */ |
1014 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1015 | if (pid_stat_table[cnt].pid == 0) { | |
1016 | pid_stat_table[cnt].pid = pid; | |
1017 | pid_stat_table[cnt].status = status; | |
1018 | break; | |
1019 | } | |
1020 | } | |
ee7118a8 | 1021 | } |
029c1713 | 1022 | #endif |
19b27a48 AT |
1023 | } |
1024 | ||
c0531332 MP |
1025 | |
1026 | /** | |
1027 | * This routine catches signals and tries to send them to gdb. | |
1028 | * | |
1029 | * Because it's called from inside a signal handler it ought not to | |
1030 | * use too many library routines. | |
1031 | * | |
1032 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1033 | * debugging without easy access to X. Perhaps use an environment | |
1034 | * variable, or just call a script? | |
1035 | * | |
1036 | * @todo The /proc/ magic probably only works on Linux (and | |
1037 | * Solaris?) Can we be more portable? | |
1038 | **/ | |
1039 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1040 | const char *get_panic_action(void) |
1041 | { | |
1042 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1043 | ||
1044 | if (cmd_fmt) | |
1045 | return cmd_fmt; | |
1046 | else | |
1047 | return "xterm -display :0 -T Panic -n Panic " | |
1048 | "-e gdb /proc/%d/exe %d"; | |
1049 | } | |
1050 | ||
1051 | ||
9fb3f7a9 MP |
1052 | /** |
1053 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1054 | * | |
1055 | * This signal handler is only installed if we were configured with | |
1056 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1057 | * should just look at the environment variable, but I'm a bit leery | |
1058 | * of a signal sending us into a busy loop. | |
1059 | **/ | |
067669da | 1060 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1061 | { |
1062 | char cmd_buf[300]; | |
1063 | int ret; | |
4fdc39dd MP |
1064 | |
1065 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1066 | getpid(), getpid()); |
1067 | ||
1068 | /* Unless we failed to execute gdb, we allow the process to | |
1069 | * continue. I'm not sure if that's right. */ | |
1070 | ret = system(cmd_buf); | |
1071 | if (ret) | |
1072 | _exit(ret); | |
1073 | } | |
1074 | #endif | |
1075 | ||
1076 | ||
5d6bcd44 | 1077 | int main(int argc,char *argv[]) |
d9c7edf6 | 1078 | { |
ff81e809 | 1079 | int ret; |
66a9dc96 WD |
1080 | int orig_argc = argc; |
1081 | char **orig_argv = argv; | |
5d6bcd44 | 1082 | |
7a6421fa | 1083 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1084 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1085 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1086 | #ifdef MAINTAINER_MODE |
1087 | signal(SIGSEGV, rsync_panic_handler); | |
1088 | signal(SIGFPE, rsync_panic_handler); | |
1089 | signal(SIGABRT, rsync_panic_handler); | |
1090 | signal(SIGBUS, rsync_panic_handler); | |
1091 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1092 | |
7a6421fa | 1093 | starttime = time(NULL); |
6fe05820 | 1094 | am_root = (MY_UID() == 0); |
c627d613 | 1095 | |
a800434a AT |
1096 | memset(&stats, 0, sizeof(stats)); |
1097 | ||
df5e03da AT |
1098 | if (argc < 2) { |
1099 | usage(FERROR); | |
65417579 | 1100 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1101 | } |
1102 | ||
7a6421fa | 1103 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1104 | * carried across */ |
7a6421fa | 1105 | orig_umask = (int)umask(0); |
5d6bcd44 | 1106 | |
50135767 | 1107 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1108 | /* FIXME: We ought to call the same error-handling |
1109 | * code here, rather than relying on getopt. */ | |
50135767 | 1110 | option_error(); |
65417579 | 1111 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1112 | } |
5d6bcd44 | 1113 | |
7a6421fa | 1114 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1115 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1116 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1117 | |
34758d5c MP |
1118 | /* Ignore SIGPIPE; we consistently check error codes and will |
1119 | * see the EPIPE. */ | |
1120 | signal(SIGPIPE, SIG_IGN); | |
1121 | ||
d9401514 WD |
1122 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1123 | setlocale(LC_CTYPE, ""); | |
1124 | #endif | |
1125 | ||
c226b7c2 | 1126 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1127 | * (implemented by forking "pwd" and reading its output) doesn't |
1128 | * work when there are other child processes. Also, on all systems | |
1129 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1130 | push_dir(NULL); |
c226b7c2 | 1131 | |
44e9e221 WD |
1132 | init_flist(); |
1133 | ||
e8a96e27 | 1134 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1135 | if (write_batch) |
66a9dc96 | 1136 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1137 | |
dbbab0c4 WD |
1138 | if (read_batch && strcmp(batch_name, "-") == 0) |
1139 | batch_fd = STDIN_FILENO; | |
1140 | else { | |
1141 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1142 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1143 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1144 | } |
b9f592fb WD |
1145 | if (batch_fd < 0) { |
1146 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1147 | full_fname(batch_name)); |
b9f592fb WD |
1148 | exit_cleanup(RERR_FILEIO); |
1149 | } | |
9459290a WD |
1150 | if (read_batch) |
1151 | read_stream_flags(batch_fd); | |
6902ed17 | 1152 | } |
e8a96e27 WD |
1153 | if (write_batch < 0) |
1154 | dry_run = 1; | |
6902ed17 | 1155 | |
75aeac44 | 1156 | if (am_daemon && !am_server) |
7a6421fa | 1157 | return daemon_main(); |
f0fca04e | 1158 | |
08ac228f AT |
1159 | if (argc < 1) { |
1160 | usage(FERROR); | |
65417579 | 1161 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1162 | } |
1163 | ||
7a6421fa | 1164 | if (am_server) { |
f0359dd0 AT |
1165 | set_nonblocking(STDIN_FILENO); |
1166 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1167 | if (am_daemon) |
1168 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1169 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1170 | } | |
c627d613 | 1171 | |
ff81e809 | 1172 | ret = start_client(argc, argv); |
d9c7edf6 | 1173 | if (ret == -1) |
9098bbf3 | 1174 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1175 | else |
9098bbf3 MP |
1176 | exit_cleanup(ret); |
1177 | ||
0f5a04e3 | 1178 | return ret; |
c627d613 | 1179 | } |