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