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 WD |
48 | extern int recurse; |
49 | extern int relative_paths; | |
50 | extern int rsync_port; | |
b1df18d7 | 51 | extern int whole_file; |
32eda096 WD |
52 | extern int read_batch; |
53 | extern int write_batch; | |
b9f592fb | 54 | extern int batch_fd; |
c0d8e84c | 55 | extern int batch_gen_fd; |
32eda096 WD |
56 | extern int filesfrom_fd; |
57 | extern pid_t cleanup_child_pid; | |
50839b4b | 58 | extern struct stats stats; |
860236bf | 59 | extern char *filesfrom_host; |
32eda096 WD |
60 | extern char *rsync_path; |
61 | extern char *shell_cmd; | |
9b3318b0 | 62 | extern char *batch_name; |
57dee64e WD |
63 | |
64 | int local_server = 0; | |
a00628b3 | 65 | struct file_list *the_file_list; |
c627d613 | 66 | |
91c5833b WD |
67 | /* There's probably never more than at most 2 outstanding child processes, |
68 | * but set it higher, just in case. */ | |
ee7118a8 DD |
69 | #define MAXCHILDPROCS 5 |
70 | ||
71 | struct pid_status { | |
72 | pid_t pid; | |
73 | int status; | |
74 | } pid_stat_table[MAXCHILDPROCS]; | |
75 | ||
33c4b445 WD |
76 | static time_t starttime, endtime; |
77 | static int64 total_read, total_written; | |
78 | ||
e5a2b854 | 79 | static void show_malloc_stats(void); |
82980a23 AT |
80 | |
81 | /**************************************************************************** | |
82 | wait for a process to exit, calling io_flush while waiting | |
83 | ****************************************************************************/ | |
dbefb6b4 | 84 | static void wait_process(pid_t pid, int *code_ptr) |
82980a23 | 85 | { |
ee7118a8 | 86 | pid_t waited_pid; |
dbefb6b4 | 87 | int cnt, status; |
ee7118a8 | 88 | |
dbefb6b4 | 89 | while ((waited_pid = waitpid(pid, &status, WNOHANG)) == 0) { |
a24c6870 | 90 | msleep(20); |
f1e3656e | 91 | io_flush(FULL_FLUSH); |
82980a23 | 92 | } |
d9c7edf6 | 93 | |
6fb812f7 | 94 | if (waited_pid == -1 && errno == ECHILD) { |
ee7118a8 DD |
95 | /* status of requested child no longer available. |
96 | * check to see if it was processed by the sigchld_handler. | |
97 | */ | |
98 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
99 | if (pid == pid_stat_table[cnt].pid) { | |
dbefb6b4 WD |
100 | waited_pid = pid; |
101 | status = pid_stat_table[cnt].status; | |
ee7118a8 DD |
102 | pid_stat_table[cnt].pid = 0; |
103 | break; | |
104 | } | |
105 | } | |
106 | } | |
107 | ||
d9c7edf6 WD |
108 | /* TODO: If the child exited on a signal, then log an |
109 | * appropriate error message. Perhaps we should also accept a | |
110 | * message describing the purpose of the child. Also indicate | |
dbefb6b4 WD |
111 | * this to the caller so that they know something went wrong. */ |
112 | if (waited_pid < 0) | |
113 | *code_ptr = RERR_WAITCHILD; | |
114 | else if (!WIFEXITED(status)) { | |
115 | if (WCOREDUMP(status)) | |
116 | *code_ptr = RERR_CRASHED; | |
117 | else if (WIFSIGNALED(status)) | |
118 | *code_ptr = RERR_TERMINATED; | |
119 | else | |
120 | *code_ptr = RERR_WAITCHILD; | |
121 | } else | |
122 | *code_ptr = WEXITSTATUS(status); | |
82980a23 AT |
123 | } |
124 | ||
b9f592fb WD |
125 | /* This function gets called from all 3 processes. We want the client side |
126 | * to actually output the text, but the sender is the only process that has | |
127 | * all the stats we need. So, if we're a client sender, we do the report. | |
128 | * If we're a server sender, we write the stats on the supplied fd. If | |
129 | * we're the client receiver we read the stats from the supplied fd and do | |
130 | * the report. All processes might also generate a set of debug stats, if | |
131 | * the verbose level is high enough (this is the only thing that the | |
132 | * generator process and the server receiver ever do here). */ | |
33c4b445 | 133 | static void handle_stats(int f) |
c627d613 | 134 | { |
33c4b445 WD |
135 | endtime = time(NULL); |
136 | ||
b9f592fb | 137 | /* Cache two stats because the read/write code can change it. */ |
33c4b445 WD |
138 | total_read = stats.total_read; |
139 | total_written = stats.total_written; | |
7a6421fa | 140 | |
7bb7058e | 141 | if (do_stats && verbose > 1) { |
5c15e29f | 142 | /* These come out from every process */ |
7bb7058e | 143 | show_malloc_stats(); |
86943126 | 144 | show_flist_stats(); |
5c15e29f MP |
145 | } |
146 | ||
e5fbaa71 S |
147 | if (am_generator) |
148 | return; | |
149 | ||
248fbb8c | 150 | if (am_daemon) { |
a9766ef1 | 151 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
152 | if (f == -1 || !am_sender) |
153 | return; | |
248fbb8c AT |
154 | } |
155 | ||
e19452a9 | 156 | if (am_server) { |
3e491682 | 157 | if (am_sender) { |
b9f592fb WD |
158 | write_longint(f, total_read); |
159 | write_longint(f, total_written); | |
160 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
161 | if (protocol_version >= 29) { |
162 | write_longint(f, stats.flist_buildtime); | |
163 | write_longint(f, stats.flist_xfertime); | |
164 | } | |
e19452a9 | 165 | } |
7a6421fa AT |
166 | return; |
167 | } | |
e19452a9 DD |
168 | |
169 | /* this is the client */ | |
d9c7edf6 | 170 | |
9d19f8a5 WD |
171 | if (f < 0 && !am_sender) /* e.g. when we got an empty file list. */ |
172 | ; | |
173 | else if (!am_sender) { | |
58c5c245 WD |
174 | /* Read the first two in opposite order because the meaning of |
175 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
176 | total_written = read_longint(f); |
177 | total_read = read_longint(f); | |
a800434a | 178 | stats.total_size = read_longint(f); |
f0f7e760 WD |
179 | if (protocol_version >= 29) { |
180 | stats.flist_buildtime = read_longint(f); | |
181 | stats.flist_xfertime = read_longint(f); | |
182 | } | |
e4676bb5 | 183 | } else if (write_batch) { |
b9f592fb WD |
184 | /* The --read-batch process is going to be a client |
185 | * receiver, so we need to give it the stats. */ | |
186 | write_longint(batch_fd, total_read); | |
187 | write_longint(batch_fd, total_written); | |
188 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
189 | if (protocol_version >= 29) { |
190 | write_longint(batch_fd, stats.flist_buildtime); | |
191 | write_longint(batch_fd, stats.flist_xfertime); | |
192 | } | |
a800434a | 193 | } |
e4676bb5 | 194 | } |
a800434a | 195 | |
e4676bb5 WD |
196 | static void output_summary(void) |
197 | { | |
a800434a | 198 | if (do_stats) { |
1f658d42 | 199 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
200 | rprintf(FINFO,"Number of files transferred: %d\n", |
201 | stats.num_transferred_files); | |
202 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
203 | (double)stats.total_size); | |
204 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
205 | (double)stats.total_transferred_size); | |
206 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
207 | (double)stats.literal_data); | |
208 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
209 | (double)stats.matched_data); | |
1f658d42 | 210 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
211 | if (stats.flist_buildtime) { |
212 | rprintf(FINFO, | |
213 | "File list generation time: %.3f seconds\n", | |
214 | (double)stats.flist_buildtime / 1000); | |
215 | rprintf(FINFO, | |
216 | "File list transfer time: %.3f seconds\n", | |
217 | (double)stats.flist_xfertime / 1000); | |
218 | } | |
4de2a174 | 219 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 220 | (double)total_written); |
4de2a174 | 221 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 222 | (double)total_read); |
7a6421fa | 223 | } |
d9c7edf6 | 224 | |
e19452a9 | 225 | if (verbose || do_stats) { |
b9f592fb | 226 | rprintf(FINFO, |
4de2a174 | 227 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb | 228 | (double)total_written, (double)total_read, |
33c4b445 | 229 | (total_written + total_read)/(0.5 + (endtime - starttime))); |
b9f592fb | 230 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", |
d9c7edf6 | 231 | (double)stats.total_size, |
b9f592fb | 232 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 233 | } |
fc8a6b97 AT |
234 | |
235 | fflush(stdout); | |
236 | fflush(stderr); | |
c627d613 AT |
237 | } |
238 | ||
239 | ||
e5a2b854 MP |
240 | /** |
241 | * If our C library can get malloc statistics, then show them to FINFO | |
242 | **/ | |
243 | static void show_malloc_stats(void) | |
244 | { | |
4f5b0756 | 245 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
246 | struct mallinfo mi; |
247 | ||
248 | mi = mallinfo(); | |
249 | ||
ce672562 | 250 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
251 | getpid(), am_server ? "server " : "", |
252 | am_daemon ? "daemon " : "", who_am_i()); | |
253 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
254 | (long)mi.arena); | |
255 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
256 | (long)mi.ordblks); | |
257 | rprintf(FINFO, " smblks: %10ld\n", | |
258 | (long)mi.smblks); | |
259 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
260 | (long)mi.hblks); | |
261 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
262 | (long)mi.hblkhd); | |
263 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
264 | (long)mi.arena + mi.hblkhd); | |
265 | rprintf(FINFO, " usmblks: %10ld\n", | |
266 | (long)mi.usmblks); | |
267 | rprintf(FINFO, " fsmblks: %10ld\n", | |
268 | (long)mi.fsmblks); | |
269 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
270 | (long)mi.uordblks); | |
271 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
272 | (long)mi.fordblks); | |
273 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
274 | (long)mi.keepcost); | |
e5a2b854 MP |
275 | #endif /* HAVE_MALLINFO */ |
276 | } | |
277 | ||
278 | ||
0882faa2 | 279 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
280 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
281 | int *f_in, int *f_out) | |
c627d613 | 282 | { |
6c2e5b56 | 283 | int i, argc = 0; |
887e553f | 284 | char *args[MAX_ARGS]; |
19b27a48 | 285 | pid_t ret; |
6c2e5b56 | 286 | char *tok, *dir = NULL; |
bb4aa89c | 287 | int dash_l_set = 0; |
366345fe | 288 | |
088aac85 | 289 | if (!read_batch && !local_server) { |
9af87151 | 290 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 291 | if (!cmd) |
9af87151 | 292 | cmd = rsh_env; |
366345fe AT |
293 | if (!cmd) |
294 | cmd = RSYNC_RSH; | |
295 | cmd = strdup(cmd); | |
d9c7edf6 | 296 | if (!cmd) |
366345fe AT |
297 | goto oom; |
298 | ||
887e553f | 299 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 | 300 | /* Comparison leaves rooms for server_options(). */ |
d8c4d6de | 301 | if (argc >= MAX_ARGS - MAX_SERVER_ARGS) { |
e7a392c7 | 302 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); |
887e553f WD |
303 | exit_cleanup(RERR_SYNTAX); |
304 | } | |
366345fe | 305 | args[argc++] = tok; |
887e553f | 306 | } |
c627d613 | 307 | |
d9c7edf6 | 308 | /* check to see if we've already been given '-l user' in |
9af87151 | 309 | * the remote-shell command */ |
bb4aa89c WD |
310 | for (i = 0; i < argc-1; i++) { |
311 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
312 | dash_l_set = 1; | |
313 | } | |
314 | ||
4f5b0756 | 315 | #ifdef HAVE_REMSH |
366345fe AT |
316 | /* remsh (on HPUX) takes the arguments the other way around */ |
317 | args[argc++] = machine; | |
bb4aa89c | 318 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
319 | args[argc++] = "-l"; |
320 | args[argc++] = user; | |
321 | } | |
7b8356d0 | 322 | #else |
bb4aa89c | 323 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
324 | args[argc++] = "-l"; |
325 | args[argc++] = user; | |
326 | } | |
327 | args[argc++] = machine; | |
7b8356d0 | 328 | #endif |
c627d613 | 329 | |
366345fe | 330 | args[argc++] = rsync_path; |
c627d613 | 331 | |
9af87151 | 332 | if (blocking_io < 0) { |
90e22f4b WD |
333 | char *cp; |
334 | if ((cp = strrchr(cmd, '/')) != NULL) | |
335 | cp++; | |
336 | else | |
337 | cp = cmd; | |
338 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
339 | blocking_io = 1; | |
66b71163 | 340 | } |
e384bfbd | 341 | |
93689aa5 | 342 | server_options(args,&argc); |
e7a392c7 WD |
343 | |
344 | if (argc >= MAX_ARGS - 2) { | |
345 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
346 | exit_cleanup(RERR_SYNTAX); | |
347 | } | |
366345fe | 348 | } |
c627d613 | 349 | |
366345fe | 350 | args[argc++] = "."; |
76076c4b | 351 | |
d9c7edf6 | 352 | if (!daemon_over_rsh && path && *path) |
366345fe | 353 | args[argc++] = path; |
c627d613 | 354 | |
366345fe | 355 | args[argc] = NULL; |
c627d613 | 356 | |
366345fe | 357 | if (verbose > 3) { |
9486289c | 358 | rprintf(FINFO,"cmd="); |
e7a392c7 | 359 | for (i = 0; i < argc; i++) |
71903f60 | 360 | rprintf(FINFO, "%s ", safe_fname(args[i])); |
9486289c | 361 | rprintf(FINFO,"\n"); |
366345fe AT |
362 | } |
363 | ||
c0d8e84c WD |
364 | if (read_batch) { |
365 | int from_gen_pipe[2]; | |
366 | if (fd_pair(from_gen_pipe) < 0) { | |
367 | rsyserr(FERROR, errno, "pipe"); | |
368 | exit_cleanup(RERR_IPC); | |
369 | } | |
370 | batch_gen_fd = from_gen_pipe[0]; | |
371 | *f_out = from_gen_pipe[1]; | |
372 | *f_in = batch_fd; | |
373 | ret = -1; /* no child pid */ | |
374 | } else if (local_server) { | |
b1df18d7 WD |
375 | /* If the user didn't request --[no-]whole-file, force |
376 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 377 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 378 | whole_file = 1; |
25d34a5c | 379 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 380 | } else |
366345fe | 381 | ret = piped_child(args,f_in,f_out); |
c627d613 | 382 | |
3a69fad0 WD |
383 | if (dir) |
384 | free(dir); | |
82306bf6 | 385 | |
366345fe | 386 | return ret; |
c627d613 AT |
387 | |
388 | oom: | |
366345fe AT |
389 | out_of_memory("do_cmd"); |
390 | return 0; /* not reached */ | |
c627d613 AT |
391 | } |
392 | ||
393 | ||
c627d613 AT |
394 | static char *get_local_name(struct file_list *flist,char *name) |
395 | { | |
7a6421fa | 396 | STRUCT_STAT st; |
87cc45e1 | 397 | int e; |
c627d613 | 398 | |
c95da96a | 399 | if (verbose > 2) |
d9c7edf6 | 400 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
401 | flist->count, NS(name)); |
402 | ||
d9c7edf6 | 403 | if (!name) |
1f0610ef | 404 | return NULL; |
c95da96a | 405 | |
1ff5450d AT |
406 | if (do_stat(name,&st) == 0) { |
407 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 408 | if (!push_dir(name)) { |
982e05bb WD |
409 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
410 | full_fname(name)); | |
65417579 | 411 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
412 | } |
413 | return NULL; | |
414 | } | |
415 | if (flist->count > 1) { | |
416 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 417 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
418 | } |
419 | return name; | |
420 | } | |
421 | ||
87cc45e1 | 422 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
423 | return name; |
424 | ||
1ff5450d | 425 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 426 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 427 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
428 | } |
429 | if (verbose > 0) | |
71903f60 | 430 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
431 | |
432 | if (dry_run) { | |
433 | dry_run++; | |
434 | return NULL; | |
1ff5450d AT |
435 | } |
436 | ||
59187666 | 437 | if (!push_dir(name)) { |
982e05bb WD |
438 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
439 | full_fname(name)); | |
65417579 | 440 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
441 | } |
442 | ||
443 | return NULL; | |
c627d613 AT |
444 | } |
445 | ||
446 | ||
1a8e5c97 | 447 | /* This is only called by the sender. */ |
3485ae83 | 448 | static void read_final_goodbye(int f_in, int f_out) |
4e0fcd85 | 449 | { |
1a8e5c97 WD |
450 | int i; |
451 | ||
452 | if (protocol_version < 29) | |
453 | i = read_int(f_in); | |
454 | else { | |
3485ae83 | 455 | while ((i = read_int(f_in)) == the_file_list->count |
1a8e5c97 WD |
456 | && read_shortint(f_in) == ITEM_IS_NEW) { |
457 | /* Forward the keep-alive (no-op) to the receiver. */ | |
3485ae83 | 458 | write_int(f_out, the_file_list->count); |
1a8e5c97 WD |
459 | write_shortint(f_out, ITEM_IS_NEW); |
460 | } | |
4e0fcd85 WD |
461 | } |
462 | ||
1a8e5c97 | 463 | if (i != -1) { |
c7791b8c WD |
464 | rprintf(FERROR, "Invalid packet at end of run (%d) [%s]\n", |
465 | i, who_am_i()); | |
1a8e5c97 | 466 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
467 | } |
468 | } | |
469 | ||
470 | ||
9486289c | 471 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 472 | { |
7a6421fa AT |
473 | struct file_list *flist; |
474 | char *dir = argv[0]; | |
c627d613 | 475 | |
45e08edb WD |
476 | if (verbose > 2) { |
477 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
478 | (long)getpid()); | |
479 | } | |
d9c7edf6 | 480 | |
2adbcdc7 | 481 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
482 | rprintf(FERROR, "ERROR: module is write only\n"); |
483 | exit_cleanup(RERR_SYNTAX); | |
484 | return; | |
485 | } | |
bf26aa22 WD |
486 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
487 | rprintf(FERROR, | |
488 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
489 | exit_cleanup(RERR_SYNTAX); | |
490 | return; | |
491 | } | |
7a92ded3 | 492 | |
59187666 | 493 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
494 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
495 | full_fname(dir)); | |
65417579 | 496 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
497 | } |
498 | argc--; | |
499 | argv++; | |
d9c7edf6 | 500 | |
48a1ff0d | 501 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 502 | argc = 1; |
7a6421fa AT |
503 | argv--; |
504 | argv[0] = "."; | |
505 | } | |
d9c7edf6 | 506 | |
7a6421fa | 507 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
508 | if (!flist || flist->count == 0) { |
509 | exit_cleanup(0); | |
510 | } | |
a00628b3 | 511 | the_file_list = flist; |
8d9dc9f9 | 512 | |
da3478b2 WD |
513 | io_start_buffering_in(); |
514 | io_start_buffering_out(); | |
515 | ||
7a6421fa | 516 | send_files(flist,f_out,f_in); |
f1e3656e | 517 | io_flush(FULL_FLUSH); |
33c4b445 | 518 | handle_stats(f_out); |
4e0fcd85 | 519 | if (protocol_version >= 24) |
3485ae83 | 520 | read_final_goodbye(f_in, f_out); |
f1e3656e | 521 | io_flush(FULL_FLUSH); |
7a6421fa | 522 | exit_cleanup(0); |
c627d613 AT |
523 | } |
524 | ||
525 | ||
dc5ddbcc AT |
526 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
527 | { | |
d186eb1a | 528 | int pid; |
e1f67417 | 529 | int status = 0; |
c70e07d9 | 530 | int error_pipe[2]; |
dc5ddbcc | 531 | |
bb6721dc WD |
532 | /* The receiving side mustn't obey this, or an existing symlink that |
533 | * points to an identical file won't be replaced by the referent. */ | |
534 | copy_links = 0; | |
535 | ||
d186eb1a | 536 | if (preserve_hard_links) |
3485ae83 | 537 | init_hard_links(); |
dc5ddbcc | 538 | |
c70e07d9 | 539 | if (fd_pair(error_pipe) < 0) { |
ab759cd2 | 540 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 541 | exit_cleanup(RERR_IPC); |
554e0a8d | 542 | } |
d9c7edf6 | 543 | |
f1e3656e | 544 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 545 | |
ba449e44 | 546 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 547 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
548 | exit_cleanup(RERR_IPC); |
549 | } | |
550 | ||
551 | if (pid == 0) { | |
554e0a8d | 552 | close(error_pipe[0]); |
3a69fad0 WD |
553 | if (f_in != f_out) |
554 | close(f_out); | |
e08c9610 | 555 | |
554e0a8d | 556 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 557 | close_multiplexing_out(); |
554e0a8d AT |
558 | |
559 | /* set place to send errors */ | |
f1e3656e | 560 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 561 | |
c70e07d9 | 562 | recv_files(f_in, flist, local_name); |
f1e3656e | 563 | io_flush(FULL_FLUSH); |
33c4b445 | 564 | handle_stats(f_in); |
e08c9610 | 565 | |
f1e3656e WD |
566 | send_msg(MSG_DONE, "", 0); |
567 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 568 | |
40df65fd WD |
569 | /* Handle any keep-alive packets from the post-processing work |
570 | * that the generator does. */ | |
4e0fcd85 | 571 | if (protocol_version >= 29) { |
051182cb | 572 | kluge_around_eof = -1; |
1a8e5c97 WD |
573 | |
574 | /* This should only get stopped via a USR2 signal. */ | |
575 | while (read_int(f_in) == flist->count | |
576 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
577 | ||
3485ae83 WD |
578 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", |
579 | who_am_i()); | |
1a8e5c97 | 580 | exit_cleanup(RERR_PROTOCOL); |
4e0fcd85 WD |
581 | } |
582 | ||
9e0582f9 WD |
583 | /* Finally, we go to sleep until our parent kills us with a |
584 | * USR2 signal. We sleep for a short time, as on some OSes | |
585 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
586 | while (1) |
587 | msleep(20); | |
d186eb1a | 588 | } |
dc5ddbcc | 589 | |
b695f242 | 590 | am_generator = 1; |
9eeb3b9c | 591 | close_multiplexing_in(); |
e8a96e27 | 592 | if (write_batch && !am_server) |
b9f592fb | 593 | stop_write_batch(); |
b695f242 | 594 | |
554e0a8d | 595 | close(error_pipe[1]); |
3a69fad0 WD |
596 | if (f_in != f_out) |
597 | close(f_in); | |
e1b3d5c4 | 598 | |
da3478b2 | 599 | io_start_buffering_out(); |
b3e10ed7 | 600 | |
f1e3656e | 601 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 602 | |
c70e07d9 | 603 | generate_files(f_out, flist, local_name); |
8d9dc9f9 | 604 | |
33c4b445 | 605 | handle_stats(-1); |
f1e3656e | 606 | io_flush(FULL_FLUSH); |
d04e9c51 | 607 | if (protocol_version >= 24) { |
8ada7518 AT |
608 | /* send a final goodbye message */ |
609 | write_int(f_out, -1); | |
610 | } | |
f1e3656e | 611 | io_flush(FULL_FLUSH); |
8ada7518 | 612 | |
f1e3656e | 613 | set_msg_fd_in(-1); |
089a2435 | 614 | kill(pid, SIGUSR2); |
d79d1c69 | 615 | wait_process(pid, &status); |
d186eb1a | 616 | return status; |
dc5ddbcc AT |
617 | } |
618 | ||
c627d613 | 619 | |
9486289c | 620 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 621 | { |
7a6421fa AT |
622 | int status; |
623 | struct file_list *flist; | |
6c2e5b56 | 624 | char *local_name = NULL; |
7a6421fa | 625 | char *dir = NULL; |
07bff66f WD |
626 | int save_verbose = verbose; |
627 | ||
628 | if (filesfrom_fd >= 0) { | |
629 | /* We can't mix messages with files-from data on the socket, | |
630 | * so temporarily turn off verbose messages. */ | |
631 | verbose = 0; | |
632 | } | |
f0fca04e | 633 | |
45e08edb WD |
634 | if (verbose > 2) { |
635 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
636 | argc, (long)getpid()); | |
637 | } | |
09b7f5db | 638 | |
2adbcdc7 | 639 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
640 | rprintf(FERROR,"ERROR: module is read only\n"); |
641 | exit_cleanup(RERR_SYNTAX); | |
642 | return; | |
643 | } | |
644 | ||
d9c7edf6 | 645 | |
7a6421fa AT |
646 | if (argc > 0) { |
647 | dir = argv[0]; | |
648 | argc--; | |
649 | argv++; | |
59187666 | 650 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
651 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
652 | full_fname(dir)); | |
65417579 | 653 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 654 | } |
7a6421fa | 655 | } |
c627d613 | 656 | |
da3478b2 | 657 | io_start_buffering_in(); |
57dee64e | 658 | recv_filter_list(f_in); |
c627d613 | 659 | |
7c2a9e76 | 660 | if (filesfrom_fd >= 0) { |
07bff66f WD |
661 | /* We need to send the files-from names to the sender at the |
662 | * same time that we receive the file-list from them, so we | |
663 | * need the IO routines to automatically write out the names | |
664 | * onto our f_out socket as we read the file-list. This | |
665 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
666 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
667 | filesfrom_fd = -1; | |
668 | } | |
669 | ||
b9f592fb | 670 | flist = recv_file_list(f_in); |
07bff66f | 671 | verbose = save_verbose; |
4c36a13e AT |
672 | if (!flist) { |
673 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 674 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 675 | } |
a00628b3 | 676 | the_file_list = flist; |
d9c7edf6 | 677 | |
29fad7a3 | 678 | if (argc > 0) |
7a6421fa | 679 | local_name = get_local_name(flist,argv[0]); |
c627d613 | 680 | |
7a6421fa AT |
681 | status = do_recv(f_in,f_out,flist,local_name); |
682 | exit_cleanup(status); | |
c627d613 AT |
683 | } |
684 | ||
685 | ||
734a94a2 | 686 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
687 | { |
688 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 689 | return 0; |
25d34a5c MP |
690 | } |
691 | ||
692 | ||
9486289c | 693 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 694 | { |
f0359dd0 AT |
695 | set_nonblocking(f_in); |
696 | set_nonblocking(f_out); | |
697 | ||
da3478b2 WD |
698 | io_set_sock_fds(f_in, f_out); |
699 | setup_protocol(f_out, f_in); | |
700 | ||
d04e9c51 | 701 | if (protocol_version >= 23) |
da3478b2 | 702 | io_start_multiplex_out(); |
7a6421fa | 703 | |
7a6421fa | 704 | if (am_sender) { |
83926d3c | 705 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
706 | if (need_messages_from_generator) |
707 | io_start_multiplex_in(); | |
9b3318b0 | 708 | |
7842418b | 709 | recv_filter_list(f_in); |
7a6421fa AT |
710 | do_server_sender(f_in, f_out, argc, argv); |
711 | } else { | |
712 | do_server_recv(f_in, f_out, argc, argv); | |
713 | } | |
714 | exit_cleanup(0); | |
366345fe AT |
715 | } |
716 | ||
0ba48136 MP |
717 | |
718 | /* | |
719 | * This is called once the connection has been negotiated. It is used | |
720 | * for rsyncd, remote-shell, and local connections. | |
721 | */ | |
19b27a48 | 722 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 723 | { |
088aac85 | 724 | struct file_list *flist = NULL; |
9486289c AT |
725 | int status = 0, status2 = 0; |
726 | char *local_name = NULL; | |
19b27a48 AT |
727 | |
728 | cleanup_child_pid = pid; | |
67a28eb2 | 729 | if (!read_batch) { |
b9f592fb WD |
730 | set_nonblocking(f_in); |
731 | set_nonblocking(f_out); | |
732 | } | |
f0359dd0 | 733 | |
da3478b2 | 734 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
735 | setup_protocol(f_out,f_in); |
736 | ||
b9f592fb | 737 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 738 | io_start_multiplex_in(); |
d9c7edf6 | 739 | |
18882701 WD |
740 | /* We set our stderr file handle to blocking because ssh might have |
741 | * set it to non-blocking. This can be particularly troublesome if | |
742 | * stderr is a clone of stdout, because ssh would have set our stdout | |
743 | * to non-blocking at the same time (which can easily cause us to lose | |
744 | * output from our print statements). This kluge shouldn't cause ssh | |
745 | * any problems for how we use it. Note also that we delayed setting | |
746 | * this until after the above protocol setup so that we know for sure | |
747 | * that ssh is done twiddling its file descriptors. */ | |
748 | set_blocking(STDERR_FILENO); | |
749 | ||
9486289c | 750 | if (am_sender) { |
83926d3c | 751 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 752 | io_start_buffering_out(); |
860236bf | 753 | if (!filesfrom_host) |
a0a33ee5 | 754 | set_msg_fd_in(f_in); |
57dee64e | 755 | send_filter_list(f_out); |
860236bf | 756 | if (filesfrom_host) |
7c2a9e76 | 757 | filesfrom_fd = f_in; |
b9f592fb | 758 | |
e8a96e27 | 759 | if (write_batch && !am_server) |
b9f592fb | 760 | start_write_batch(f_out); |
a00628b3 | 761 | flist = send_file_list(f_out, argc, argv); |
a0a33ee5 | 762 | set_msg_fd_in(-1); |
d9c7edf6 | 763 | if (verbose > 3) |
9486289c | 764 | rprintf(FINFO,"file list sent\n"); |
a00628b3 | 765 | the_file_list = flist; |
e1b3d5c4 | 766 | |
f1e3656e | 767 | io_flush(NORMAL_FLUSH); |
9486289c | 768 | send_files(flist,f_out,f_in); |
f1e3656e | 769 | io_flush(FULL_FLUSH); |
33c4b445 | 770 | handle_stats(-1); |
4e0fcd85 | 771 | if (protocol_version >= 24) |
3485ae83 | 772 | read_final_goodbye(f_in, f_out); |
9486289c AT |
773 | if (pid != -1) { |
774 | if (verbose > 3) | |
08a740ff | 775 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 776 | io_flush(FULL_FLUSH); |
d79d1c69 | 777 | wait_process(pid, &status); |
9486289c | 778 | } |
33c4b445 | 779 | output_summary(); |
c87ae64a | 780 | io_flush(FULL_FLUSH); |
9486289c AT |
781 | exit_cleanup(status); |
782 | } | |
f7632fc6 | 783 | |
bf26aa22 WD |
784 | if (need_messages_from_generator && !read_batch) |
785 | io_start_multiplex_out(); | |
786 | ||
48a1ff0d WD |
787 | if (argc == 0) |
788 | list_only |= 1; | |
d9c7edf6 | 789 | |
57dee64e | 790 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 791 | |
7c2a9e76 WD |
792 | if (filesfrom_fd >= 0) { |
793 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
794 | filesfrom_fd = -1; | |
795 | } | |
796 | ||
e8a96e27 | 797 | if (write_batch && !am_server) |
b9f592fb | 798 | start_write_batch(f_in); |
9486289c | 799 | flist = recv_file_list(f_in); |
a00628b3 | 800 | the_file_list = flist; |
d9c7edf6 | 801 | |
9d19f8a5 WD |
802 | if (flist && flist->count > 0) { |
803 | local_name = get_local_name(flist, argv[0]); | |
d9c7edf6 | 804 | |
9d19f8a5 WD |
805 | status2 = do_recv(f_in, f_out, flist, local_name); |
806 | } else { | |
807 | handle_stats(-1); | |
808 | output_summary(); | |
809 | } | |
d9c7edf6 | 810 | |
9486289c | 811 | if (pid != -1) { |
8d9dc9f9 | 812 | if (verbose > 3) |
08a740ff | 813 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 814 | io_flush(FULL_FLUSH); |
d79d1c69 | 815 | wait_process(pid, &status); |
9486289c | 816 | } |
d9c7edf6 | 817 | |
ff81e809 | 818 | return MAX(status, status2); |
9486289c AT |
819 | } |
820 | ||
7169bb4a MP |
821 | static int copy_argv (char *argv[]) |
822 | { | |
823 | int i; | |
824 | ||
825 | for (i = 0; argv[i]; i++) { | |
826 | if (!(argv[i] = strdup(argv[i]))) { | |
827 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
828 | __FILE__, __LINE__); | |
829 | return RERR_MALLOC; | |
830 | } | |
831 | } | |
832 | ||
833 | return 0; | |
834 | } | |
835 | ||
836 | ||
c1a04ecb | 837 | /** |
0ba48136 MP |
838 | * Start a client for either type of remote connection. Work out |
839 | * whether the arguments request a remote shell or rsyncd connection, | |
840 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
841 | * |
842 | * Calls either start_socket_client (for sockets) or do_cmd and | |
843 | * client_run (for ssh). | |
c1a04ecb | 844 | **/ |
fc8a6b97 | 845 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
846 | { |
847 | char *p; | |
848 | char *shell_machine = NULL; | |
849 | char *shell_path = NULL; | |
850 | char *shell_user = NULL; | |
19b27a48 AT |
851 | int ret; |
852 | pid_t pid; | |
5d6bcd44 | 853 | int f_in,f_out; |
7169bb4a MP |
854 | int rc; |
855 | ||
856 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 857 | * command line. */ |
75aeac44 | 858 | if ((rc = copy_argv(argv))) |
7169bb4a | 859 | return rc; |
5d6bcd44 | 860 | |
d16c245f | 861 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 862 | argc--; |
860236bf WD |
863 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
864 | if (shell_path) { /* source is remote */ | |
9425918d WD |
865 | char *dummy1; |
866 | int dummy2; | |
3f7bfac2 | 867 | if (argc && check_for_hostspec(argv[argc], &dummy1, &dummy2)) { |
9425918d WD |
868 | rprintf(FERROR, |
869 | "The source and destination cannot both be remote.\n"); | |
870 | exit_cleanup(RERR_SYNTAX); | |
871 | } | |
42ccb4c0 | 872 | argv++; |
860236bf WD |
873 | if (filesfrom_host && *filesfrom_host |
874 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 875 | rprintf(FERROR, |
50b31539 | 876 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
877 | exit_cleanup(RERR_SYNTAX); |
878 | } | |
860236bf | 879 | if (rsync_port) { |
d9c7edf6 | 880 | if (!shell_cmd) { |
860236bf WD |
881 | return start_socket_client(shell_machine, |
882 | shell_path, | |
42ccb4c0 | 883 | argc, argv); |
d9c7edf6 | 884 | } |
d9c7edf6 | 885 | daemon_over_rsh = 1; |
75aeac44 | 886 | } |
3591c066 | 887 | |
42ccb4c0 WD |
888 | am_sender = 0; |
889 | } else { /* source is local, check dest arg */ | |
890 | am_sender = 1; | |
891 | ||
d16c245f | 892 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
893 | usage(FERROR); |
894 | exit_cleanup(RERR_SYNTAX); | |
895 | } | |
a125c82a | 896 | |
42ccb4c0 | 897 | shell_path = check_for_hostspec(argv[argc], &shell_machine, &rsync_port); |
860236bf WD |
898 | if (shell_path && filesfrom_host && *filesfrom_host |
899 | && strcmp(filesfrom_host, shell_machine) != 0) { | |
7c2a9e76 | 900 | rprintf(FERROR, |
50b31539 | 901 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
902 | exit_cleanup(RERR_SYNTAX); |
903 | } | |
860236bf | 904 | if (!shell_path) { /* no hostspec found, so src & dest are local */ |
d9c7edf6 | 905 | local_server = 1; |
860236bf | 906 | if (filesfrom_host) { |
7c2a9e76 | 907 | rprintf(FERROR, |
50b31539 | 908 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
909 | exit_cleanup(RERR_SYNTAX); |
910 | } | |
860236bf | 911 | shell_machine = NULL; |
42ccb4c0 | 912 | shell_path = argv[argc]; |
860236bf | 913 | } else if (rsync_port) { |
d9c7edf6 | 914 | if (!shell_cmd) { |
860236bf WD |
915 | return start_socket_client(shell_machine, |
916 | shell_path, | |
42ccb4c0 | 917 | argc, argv); |
d9c7edf6 | 918 | } |
d9c7edf6 | 919 | daemon_over_rsh = 1; |
a125c82a | 920 | } |
5d6bcd44 | 921 | } |
d16c245f | 922 | } else { /* read_batch */ |
d9c7edf6 WD |
923 | local_server = 1; |
924 | shell_path = argv[argc-1]; | |
860236bf | 925 | if (check_for_hostspec(shell_path, &shell_machine, &rsync_port)) { |
b9f592fb WD |
926 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); |
927 | exit_cleanup(RERR_SYNTAX); | |
928 | } | |
6902ed17 MP |
929 | } |
930 | ||
5d6bcd44 | 931 | if (shell_machine) { |
6fc048f4 | 932 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
933 | if (p) { |
934 | *p = 0; | |
935 | shell_user = shell_machine; | |
936 | shell_machine = p+1; | |
937 | } | |
938 | } | |
939 | ||
940 | if (verbose > 3) { | |
9486289c | 941 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
942 | shell_cmd ? safe_fname(shell_cmd) : "", |
943 | shell_machine ? safe_fname(shell_machine) : "", | |
944 | shell_user ? safe_fname(shell_user) : "", | |
945 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 946 | } |
d9c7edf6 | 947 | |
d16c245f | 948 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 949 | if (!am_sender && argc > 1) { |
5d6bcd44 | 950 | usage(FERROR); |
65417579 | 951 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 952 | } |
27e3e9c9 | 953 | |
d16c245f | 954 | /* ... or no dest at all */ |
48a1ff0d WD |
955 | if (!am_sender && argc == 0) |
956 | list_only |= 1; | |
d9c7edf6 | 957 | |
75aeac44 WD |
958 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
959 | &f_in,&f_out); | |
960 | ||
961 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 962 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
963 | if (daemon_over_rsh) { |
964 | int tmpret; | |
965 | tmpret = start_inband_exchange(shell_user, shell_path, | |
966 | f_in, f_out, argc); | |
967 | if (tmpret < 0) | |
968 | return tmpret; | |
969 | } | |
970 | ||
fc8a6b97 AT |
971 | ret = client_run(f_in, f_out, pid, argc, argv); |
972 | ||
973 | fflush(stdout); | |
974 | fflush(stderr); | |
975 | ||
976 | return ret; | |
5d6bcd44 AT |
977 | } |
978 | ||
366345fe | 979 | |
067669da WD |
980 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
981 | { | |
65417579 | 982 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
983 | } |
984 | ||
067669da WD |
985 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
986 | { | |
33c4b445 WD |
987 | if (!am_server) |
988 | output_summary(); | |
40df65fd | 989 | close_all(); |
33c4b445 WD |
990 | if (log_got_error) |
991 | _exit(RERR_PARTIAL); | |
8b35435f AT |
992 | _exit(0); |
993 | } | |
994 | ||
067669da WD |
995 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
996 | { | |
029c1713 | 997 | #ifdef WNOHANG |
ee7118a8 DD |
998 | int cnt, status; |
999 | pid_t pid; | |
1000 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1001 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1002 | * out we're instead saving the child exit statuses for later use. |
1003 | * The waitpid() loop presumably eliminates all possibility of leaving | |
1004 | * zombie children, maybe that's why he did it. | |
1005 | */ | |
1006 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
9af87151 WD |
1007 | /* save the child's exit status */ |
1008 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1009 | if (pid_stat_table[cnt].pid == 0) { | |
1010 | pid_stat_table[cnt].pid = pid; | |
1011 | pid_stat_table[cnt].status = status; | |
1012 | break; | |
1013 | } | |
1014 | } | |
ee7118a8 | 1015 | } |
029c1713 | 1016 | #endif |
19b27a48 AT |
1017 | } |
1018 | ||
c0531332 MP |
1019 | |
1020 | /** | |
1021 | * This routine catches signals and tries to send them to gdb. | |
1022 | * | |
1023 | * Because it's called from inside a signal handler it ought not to | |
1024 | * use too many library routines. | |
1025 | * | |
1026 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1027 | * debugging without easy access to X. Perhaps use an environment | |
1028 | * variable, or just call a script? | |
1029 | * | |
1030 | * @todo The /proc/ magic probably only works on Linux (and | |
1031 | * Solaris?) Can we be more portable? | |
1032 | **/ | |
1033 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1034 | const char *get_panic_action(void) |
1035 | { | |
1036 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1037 | ||
1038 | if (cmd_fmt) | |
1039 | return cmd_fmt; | |
1040 | else | |
1041 | return "xterm -display :0 -T Panic -n Panic " | |
1042 | "-e gdb /proc/%d/exe %d"; | |
1043 | } | |
1044 | ||
1045 | ||
9fb3f7a9 MP |
1046 | /** |
1047 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1048 | * | |
1049 | * This signal handler is only installed if we were configured with | |
1050 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1051 | * should just look at the environment variable, but I'm a bit leery | |
1052 | * of a signal sending us into a busy loop. | |
1053 | **/ | |
067669da | 1054 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1055 | { |
1056 | char cmd_buf[300]; | |
1057 | int ret; | |
4fdc39dd MP |
1058 | |
1059 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1060 | getpid(), getpid()); |
1061 | ||
1062 | /* Unless we failed to execute gdb, we allow the process to | |
1063 | * continue. I'm not sure if that's right. */ | |
1064 | ret = system(cmd_buf); | |
1065 | if (ret) | |
1066 | _exit(ret); | |
1067 | } | |
1068 | #endif | |
1069 | ||
1070 | ||
5d6bcd44 | 1071 | int main(int argc,char *argv[]) |
d9c7edf6 | 1072 | { |
ff81e809 | 1073 | int ret; |
66a9dc96 WD |
1074 | int orig_argc = argc; |
1075 | char **orig_argv = argv; | |
5d6bcd44 | 1076 | |
7a6421fa | 1077 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1078 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1079 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1080 | #ifdef MAINTAINER_MODE |
1081 | signal(SIGSEGV, rsync_panic_handler); | |
1082 | signal(SIGFPE, rsync_panic_handler); | |
1083 | signal(SIGABRT, rsync_panic_handler); | |
1084 | signal(SIGBUS, rsync_panic_handler); | |
1085 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1086 | |
7a6421fa | 1087 | starttime = time(NULL); |
6fe05820 | 1088 | am_root = (MY_UID() == 0); |
c627d613 | 1089 | |
a800434a AT |
1090 | memset(&stats, 0, sizeof(stats)); |
1091 | ||
df5e03da AT |
1092 | if (argc < 2) { |
1093 | usage(FERROR); | |
65417579 | 1094 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1095 | } |
1096 | ||
7a6421fa | 1097 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1098 | * carried across */ |
7a6421fa | 1099 | orig_umask = (int)umask(0); |
5d6bcd44 | 1100 | |
50135767 | 1101 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1102 | /* FIXME: We ought to call the same error-handling |
1103 | * code here, rather than relying on getopt. */ | |
50135767 | 1104 | option_error(); |
65417579 | 1105 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1106 | } |
5d6bcd44 | 1107 | |
7a6421fa | 1108 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1109 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1110 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1111 | |
34758d5c MP |
1112 | /* Ignore SIGPIPE; we consistently check error codes and will |
1113 | * see the EPIPE. */ | |
1114 | signal(SIGPIPE, SIG_IGN); | |
1115 | ||
d9401514 WD |
1116 | #if defined CONFIG_LOCALE && defined HAVE_SETLOCALE |
1117 | setlocale(LC_CTYPE, ""); | |
1118 | #endif | |
1119 | ||
c226b7c2 | 1120 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1121 | * (implemented by forking "pwd" and reading its output) doesn't |
1122 | * work when there are other child processes. Also, on all systems | |
1123 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1124 | push_dir(NULL); |
c226b7c2 | 1125 | |
44e9e221 WD |
1126 | init_flist(); |
1127 | ||
e8a96e27 | 1128 | if ((write_batch || read_batch) && !am_server) { |
b9f592fb | 1129 | if (write_batch) |
66a9dc96 | 1130 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1131 | |
dbbab0c4 WD |
1132 | if (read_batch && strcmp(batch_name, "-") == 0) |
1133 | batch_fd = STDIN_FILENO; | |
1134 | else { | |
1135 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1136 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1137 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1138 | } |
b9f592fb WD |
1139 | if (batch_fd < 0) { |
1140 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1141 | full_fname(batch_name)); |
b9f592fb WD |
1142 | exit_cleanup(RERR_FILEIO); |
1143 | } | |
9459290a WD |
1144 | if (read_batch) |
1145 | read_stream_flags(batch_fd); | |
6902ed17 | 1146 | } |
e8a96e27 WD |
1147 | if (write_batch < 0) |
1148 | dry_run = 1; | |
6902ed17 | 1149 | |
75aeac44 | 1150 | if (am_daemon && !am_server) |
7a6421fa | 1151 | return daemon_main(); |
f0fca04e | 1152 | |
08ac228f AT |
1153 | if (argc < 1) { |
1154 | usage(FERROR); | |
65417579 | 1155 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1156 | } |
1157 | ||
7a6421fa | 1158 | if (am_server) { |
f0359dd0 AT |
1159 | set_nonblocking(STDIN_FILENO); |
1160 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1161 | if (am_daemon) |
1162 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1163 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1164 | } | |
c627d613 | 1165 | |
ff81e809 | 1166 | ret = start_client(argc, argv); |
d9c7edf6 | 1167 | if (ret == -1) |
9098bbf3 | 1168 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1169 | else |
9098bbf3 MP |
1170 | exit_cleanup(ret); |
1171 | ||
0f5a04e3 | 1172 | return ret; |
c627d613 | 1173 | } |