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" | |
23 | ||
f0fca04e | 24 | time_t starttime = 0; |
a800434a | 25 | |
50839b4b WD |
26 | extern int verbose; |
27 | extern int dry_run; | |
28 | extern int list_only; | |
32eda096 | 29 | extern int am_root; |
d9c7edf6 WD |
30 | extern int am_server; |
31 | extern int am_sender; | |
b695f242 | 32 | extern int am_generator; |
d9c7edf6 | 33 | extern int am_daemon; |
32eda096 | 34 | extern int blocking_io; |
bf26aa22 | 35 | extern int remove_sent_files; |
32eda096 | 36 | extern int daemon_over_rsh; |
bf26aa22 | 37 | extern int need_messages_from_generator; |
051182cb | 38 | extern int kluge_around_eof; |
32eda096 | 39 | extern int do_stats; |
32eda096 WD |
40 | extern int log_got_error; |
41 | extern int module_id; | |
42 | extern int orig_umask; | |
bb6721dc | 43 | extern int copy_links; |
83926d3c | 44 | extern int keep_dirlinks; |
32eda096 | 45 | extern int preserve_hard_links; |
d04e9c51 | 46 | extern int protocol_version; |
32eda096 | 47 | extern int recurse; |
06b96ffa | 48 | extern int fuzzy_basis; |
32eda096 WD |
49 | extern int relative_paths; |
50 | extern int rsync_port; | |
cb8240a2 | 51 | extern int inplace; |
38e3910b | 52 | extern int make_backups; |
b1df18d7 | 53 | extern int whole_file; |
32eda096 WD |
54 | extern int read_batch; |
55 | extern int write_batch; | |
b9f592fb | 56 | extern int batch_fd; |
c0d8e84c | 57 | extern int batch_gen_fd; |
32eda096 WD |
58 | extern int filesfrom_fd; |
59 | extern pid_t cleanup_child_pid; | |
50839b4b | 60 | extern struct stats stats; |
860236bf | 61 | extern char *filesfrom_host; |
7162c65d | 62 | extern char *partial_dir; |
c3fad2e2 | 63 | extern char *basis_dir[]; |
32eda096 WD |
64 | extern char *rsync_path; |
65 | extern char *shell_cmd; | |
9b3318b0 | 66 | extern char *batch_name; |
57dee64e WD |
67 | |
68 | int local_server = 0; | |
c627d613 | 69 | |
91c5833b WD |
70 | /* There's probably never more than at most 2 outstanding child processes, |
71 | * but set it higher, just in case. */ | |
ee7118a8 DD |
72 | #define MAXCHILDPROCS 5 |
73 | ||
74 | struct pid_status { | |
75 | pid_t pid; | |
76 | int status; | |
77 | } pid_stat_table[MAXCHILDPROCS]; | |
78 | ||
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). */ | |
c627d613 AT |
123 | static void report(int f) |
124 | { | |
b9f592fb WD |
125 | /* Cache two stats because the read/write code can change it. */ |
126 | int64 total_read = stats.total_read; | |
127 | int64 total_written = stats.total_written; | |
7a6421fa | 128 | time_t t = time(NULL); |
7a6421fa | 129 | |
7bb7058e | 130 | if (do_stats && verbose > 1) { |
5c15e29f | 131 | /* These come out from every process */ |
7bb7058e | 132 | show_malloc_stats(); |
86943126 | 133 | show_flist_stats(); |
5c15e29f MP |
134 | } |
135 | ||
e5fbaa71 S |
136 | if (am_generator) |
137 | return; | |
138 | ||
248fbb8c | 139 | if (am_daemon) { |
a9766ef1 | 140 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
141 | if (f == -1 || !am_sender) |
142 | return; | |
248fbb8c AT |
143 | } |
144 | ||
e19452a9 | 145 | if (am_server) { |
3e491682 | 146 | if (am_sender) { |
b9f592fb WD |
147 | write_longint(f, total_read); |
148 | write_longint(f, total_written); | |
149 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
150 | if (protocol_version >= 29) { |
151 | write_longint(f, stats.flist_buildtime); | |
152 | write_longint(f, stats.flist_xfertime); | |
153 | } | |
e19452a9 | 154 | } |
7a6421fa AT |
155 | return; |
156 | } | |
e19452a9 DD |
157 | |
158 | /* this is the client */ | |
d9c7edf6 | 159 | |
3e491682 | 160 | if (!am_sender) { |
58c5c245 WD |
161 | /* Read the first two in opposite order because the meaning of |
162 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
163 | total_written = read_longint(f); |
164 | total_read = read_longint(f); | |
a800434a | 165 | stats.total_size = read_longint(f); |
f0f7e760 WD |
166 | if (protocol_version >= 29) { |
167 | stats.flist_buildtime = read_longint(f); | |
168 | stats.flist_xfertime = read_longint(f); | |
169 | } | |
b9f592fb WD |
170 | } else if (write_batch) { |
171 | /* The --read-batch process is going to be a client | |
172 | * receiver, so we need to give it the stats. */ | |
173 | write_longint(batch_fd, total_read); | |
174 | write_longint(batch_fd, total_written); | |
175 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
176 | if (protocol_version >= 29) { |
177 | write_longint(batch_fd, stats.flist_buildtime); | |
178 | write_longint(batch_fd, stats.flist_xfertime); | |
179 | } | |
a800434a AT |
180 | } |
181 | ||
182 | if (do_stats) { | |
1f658d42 | 183 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
184 | rprintf(FINFO,"Number of files transferred: %d\n", |
185 | stats.num_transferred_files); | |
186 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
187 | (double)stats.total_size); | |
188 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
189 | (double)stats.total_transferred_size); | |
190 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
191 | (double)stats.literal_data); | |
192 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
193 | (double)stats.matched_data); | |
1f658d42 | 194 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
195 | if (stats.flist_buildtime) { |
196 | rprintf(FINFO, | |
197 | "File list generation time: %.3f seconds\n", | |
198 | (double)stats.flist_buildtime / 1000); | |
199 | rprintf(FINFO, | |
200 | "File list transfer time: %.3f seconds\n", | |
201 | (double)stats.flist_xfertime / 1000); | |
202 | } | |
4de2a174 | 203 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 204 | (double)total_written); |
4de2a174 | 205 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 206 | (double)total_read); |
7a6421fa | 207 | } |
d9c7edf6 | 208 | |
e19452a9 | 209 | if (verbose || do_stats) { |
b9f592fb | 210 | rprintf(FINFO, |
4de2a174 | 211 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb WD |
212 | (double)total_written, (double)total_read, |
213 | (total_written + total_read)/(0.5 + (t - starttime))); | |
214 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", | |
d9c7edf6 | 215 | (double)stats.total_size, |
b9f592fb | 216 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 217 | } |
fc8a6b97 AT |
218 | |
219 | fflush(stdout); | |
220 | fflush(stderr); | |
c627d613 AT |
221 | } |
222 | ||
223 | ||
e5a2b854 MP |
224 | /** |
225 | * If our C library can get malloc statistics, then show them to FINFO | |
226 | **/ | |
227 | static void show_malloc_stats(void) | |
228 | { | |
4f5b0756 | 229 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
230 | struct mallinfo mi; |
231 | ||
232 | mi = mallinfo(); | |
233 | ||
ce672562 | 234 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
235 | getpid(), am_server ? "server " : "", |
236 | am_daemon ? "daemon " : "", who_am_i()); | |
237 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
238 | (long)mi.arena); | |
239 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
240 | (long)mi.ordblks); | |
241 | rprintf(FINFO, " smblks: %10ld\n", | |
242 | (long)mi.smblks); | |
243 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
244 | (long)mi.hblks); | |
245 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
246 | (long)mi.hblkhd); | |
247 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
248 | (long)mi.arena + mi.hblkhd); | |
249 | rprintf(FINFO, " usmblks: %10ld\n", | |
250 | (long)mi.usmblks); | |
251 | rprintf(FINFO, " fsmblks: %10ld\n", | |
252 | (long)mi.fsmblks); | |
253 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
254 | (long)mi.uordblks); | |
255 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
256 | (long)mi.fordblks); | |
257 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
258 | (long)mi.keepcost); | |
e5a2b854 MP |
259 | #endif /* HAVE_MALLINFO */ |
260 | } | |
261 | ||
262 | ||
0882faa2 | 263 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
264 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
265 | int *f_in, int *f_out) | |
c627d613 | 266 | { |
6c2e5b56 | 267 | int i, argc = 0; |
887e553f | 268 | char *args[MAX_ARGS]; |
19b27a48 | 269 | pid_t ret; |
6c2e5b56 | 270 | char *tok, *dir = NULL; |
bb4aa89c | 271 | int dash_l_set = 0; |
366345fe | 272 | |
088aac85 | 273 | if (!read_batch && !local_server) { |
9af87151 | 274 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 275 | if (!cmd) |
9af87151 | 276 | cmd = rsh_env; |
366345fe AT |
277 | if (!cmd) |
278 | cmd = RSYNC_RSH; | |
279 | cmd = strdup(cmd); | |
d9c7edf6 | 280 | if (!cmd) |
366345fe AT |
281 | goto oom; |
282 | ||
887e553f | 283 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 WD |
284 | /* Comparison leaves rooms for server_options(). */ |
285 | if (argc >= MAX_ARGS - 100) { | |
286 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
887e553f WD |
287 | exit_cleanup(RERR_SYNTAX); |
288 | } | |
366345fe | 289 | args[argc++] = tok; |
887e553f | 290 | } |
c627d613 | 291 | |
d9c7edf6 | 292 | /* check to see if we've already been given '-l user' in |
9af87151 | 293 | * the remote-shell command */ |
bb4aa89c WD |
294 | for (i = 0; i < argc-1; i++) { |
295 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
296 | dash_l_set = 1; | |
297 | } | |
298 | ||
4f5b0756 | 299 | #ifdef HAVE_REMSH |
366345fe AT |
300 | /* remsh (on HPUX) takes the arguments the other way around */ |
301 | args[argc++] = machine; | |
bb4aa89c | 302 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
303 | args[argc++] = "-l"; |
304 | args[argc++] = user; | |
305 | } | |
7b8356d0 | 306 | #else |
bb4aa89c | 307 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
308 | args[argc++] = "-l"; |
309 | args[argc++] = user; | |
310 | } | |
311 | args[argc++] = machine; | |
7b8356d0 | 312 | #endif |
c627d613 | 313 | |
366345fe | 314 | args[argc++] = rsync_path; |
c627d613 | 315 | |
9af87151 | 316 | if (blocking_io < 0) { |
90e22f4b WD |
317 | char *cp; |
318 | if ((cp = strrchr(cmd, '/')) != NULL) | |
319 | cp++; | |
320 | else | |
321 | cp = cmd; | |
322 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
323 | blocking_io = 1; | |
66b71163 | 324 | } |
e384bfbd | 325 | |
93689aa5 | 326 | server_options(args,&argc); |
e7a392c7 WD |
327 | |
328 | if (argc >= MAX_ARGS - 2) { | |
329 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
330 | exit_cleanup(RERR_SYNTAX); | |
331 | } | |
366345fe | 332 | } |
c627d613 | 333 | |
366345fe | 334 | args[argc++] = "."; |
76076c4b | 335 | |
d9c7edf6 | 336 | if (!daemon_over_rsh && path && *path) |
366345fe | 337 | args[argc++] = path; |
c627d613 | 338 | |
366345fe | 339 | args[argc] = NULL; |
c627d613 | 340 | |
366345fe | 341 | if (verbose > 3) { |
9486289c | 342 | rprintf(FINFO,"cmd="); |
e7a392c7 | 343 | for (i = 0; i < argc; i++) |
71903f60 | 344 | rprintf(FINFO, "%s ", safe_fname(args[i])); |
9486289c | 345 | rprintf(FINFO,"\n"); |
366345fe AT |
346 | } |
347 | ||
c0d8e84c WD |
348 | if (read_batch) { |
349 | int from_gen_pipe[2]; | |
350 | if (fd_pair(from_gen_pipe) < 0) { | |
351 | rsyserr(FERROR, errno, "pipe"); | |
352 | exit_cleanup(RERR_IPC); | |
353 | } | |
354 | batch_gen_fd = from_gen_pipe[0]; | |
355 | *f_out = from_gen_pipe[1]; | |
356 | *f_in = batch_fd; | |
357 | ret = -1; /* no child pid */ | |
358 | } else if (local_server) { | |
b1df18d7 WD |
359 | /* If the user didn't request --[no-]whole-file, force |
360 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 361 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 362 | whole_file = 1; |
25d34a5c | 363 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 364 | } else |
366345fe | 365 | ret = piped_child(args,f_in,f_out); |
c627d613 | 366 | |
3a69fad0 WD |
367 | if (dir) |
368 | free(dir); | |
82306bf6 | 369 | |
366345fe | 370 | return ret; |
c627d613 AT |
371 | |
372 | oom: | |
366345fe AT |
373 | out_of_memory("do_cmd"); |
374 | return 0; /* not reached */ | |
c627d613 AT |
375 | } |
376 | ||
377 | ||
c627d613 AT |
378 | static char *get_local_name(struct file_list *flist,char *name) |
379 | { | |
7a6421fa | 380 | STRUCT_STAT st; |
87cc45e1 | 381 | int e; |
c627d613 | 382 | |
c95da96a | 383 | if (verbose > 2) |
d9c7edf6 | 384 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
385 | flist->count, NS(name)); |
386 | ||
d9c7edf6 | 387 | if (!name) |
1f0610ef | 388 | return NULL; |
c95da96a | 389 | |
1ff5450d AT |
390 | if (do_stat(name,&st) == 0) { |
391 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 392 | if (!push_dir(name)) { |
982e05bb WD |
393 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
394 | full_fname(name)); | |
65417579 | 395 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
396 | } |
397 | return NULL; | |
398 | } | |
399 | if (flist->count > 1) { | |
400 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 401 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
402 | } |
403 | return name; | |
404 | } | |
405 | ||
87cc45e1 | 406 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
407 | return name; |
408 | ||
1ff5450d | 409 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 410 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 411 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
412 | } |
413 | if (verbose > 0) | |
71903f60 | 414 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
415 | |
416 | if (dry_run) { | |
417 | dry_run++; | |
418 | return NULL; | |
1ff5450d AT |
419 | } |
420 | ||
59187666 | 421 | if (!push_dir(name)) { |
982e05bb WD |
422 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
423 | full_fname(name)); | |
65417579 | 424 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
425 | } |
426 | ||
427 | return NULL; | |
c627d613 AT |
428 | } |
429 | ||
430 | ||
1a8e5c97 | 431 | /* This is only called by the sender. */ |
4e0fcd85 WD |
432 | static void read_final_goodbye(int f_in, int f_out, int flist_count) |
433 | { | |
1a8e5c97 WD |
434 | int i; |
435 | ||
436 | if (protocol_version < 29) | |
437 | i = read_int(f_in); | |
438 | else { | |
439 | while ((i = read_int(f_in)) == flist_count | |
440 | && read_shortint(f_in) == ITEM_IS_NEW) { | |
441 | /* Forward the keep-alive (no-op) to the receiver. */ | |
442 | write_int(f_out, flist_count); | |
443 | write_shortint(f_out, ITEM_IS_NEW); | |
444 | } | |
4e0fcd85 WD |
445 | } |
446 | ||
1a8e5c97 WD |
447 | if (i != -1) { |
448 | rprintf(FERROR, "Invalid packet from generator at end of run.\n"); | |
449 | exit_cleanup(RERR_PROTOCOL); | |
4e0fcd85 WD |
450 | } |
451 | } | |
452 | ||
453 | ||
9486289c | 454 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 455 | { |
7a6421fa AT |
456 | int i; |
457 | struct file_list *flist; | |
458 | char *dir = argv[0]; | |
c627d613 | 459 | |
45e08edb WD |
460 | if (verbose > 2) { |
461 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
462 | (long)getpid()); | |
463 | } | |
d9c7edf6 | 464 | |
2adbcdc7 | 465 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
466 | rprintf(FERROR, "ERROR: module is write only\n"); |
467 | exit_cleanup(RERR_SYNTAX); | |
468 | return; | |
469 | } | |
bf26aa22 WD |
470 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
471 | rprintf(FERROR, | |
472 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
473 | exit_cleanup(RERR_SYNTAX); | |
474 | return; | |
475 | } | |
7a92ded3 | 476 | |
59187666 | 477 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
478 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
479 | full_fname(dir)); | |
65417579 | 480 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
481 | } |
482 | argc--; | |
483 | argv++; | |
d9c7edf6 | 484 | |
7a6421fa AT |
485 | if (strcmp(dir,".")) { |
486 | int l = strlen(dir); | |
d9c7edf6 | 487 | if (strcmp(dir,"/") == 0) |
7a6421fa | 488 | l = 0; |
e7a392c7 | 489 | for (i = 0; i < argc; i++) |
7a6421fa AT |
490 | argv[i] += l+1; |
491 | } | |
c627d613 | 492 | |
48a1ff0d | 493 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 494 | argc = 1; |
7a6421fa AT |
495 | argv--; |
496 | argv[0] = "."; | |
497 | } | |
d9c7edf6 | 498 | |
7a6421fa | 499 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
500 | if (!flist || flist->count == 0) { |
501 | exit_cleanup(0); | |
502 | } | |
503 | ||
da3478b2 WD |
504 | io_start_buffering_in(); |
505 | io_start_buffering_out(); | |
506 | ||
7a6421fa | 507 | send_files(flist,f_out,f_in); |
f1e3656e | 508 | io_flush(FULL_FLUSH); |
7a6421fa | 509 | report(f_out); |
4e0fcd85 WD |
510 | if (protocol_version >= 24) |
511 | read_final_goodbye(f_in, f_out, flist->count); | |
f1e3656e | 512 | io_flush(FULL_FLUSH); |
7a6421fa | 513 | exit_cleanup(0); |
c627d613 AT |
514 | } |
515 | ||
516 | ||
dc5ddbcc AT |
517 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
518 | { | |
d186eb1a | 519 | int pid; |
e1f67417 | 520 | int status = 0; |
41cfde6b | 521 | int error_pipe[2], name_pipe[2]; |
cb8240a2 | 522 | BOOL need_name_pipe = (basis_dir[0] || partial_dir || fuzzy_basis |
38e3910b | 523 | || (inplace && make_backups)) && !dry_run; |
dc5ddbcc | 524 | |
bb6721dc WD |
525 | /* The receiving side mustn't obey this, or an existing symlink that |
526 | * points to an identical file won't be replaced by the referent. */ | |
527 | copy_links = 0; | |
528 | ||
d186eb1a AT |
529 | if (preserve_hard_links) |
530 | init_hard_links(flist); | |
dc5ddbcc | 531 | |
41cfde6b WD |
532 | if (fd_pair(error_pipe) < 0 |
533 | || (need_name_pipe && fd_pair(name_pipe) < 0)) { | |
ab759cd2 | 534 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 535 | exit_cleanup(RERR_IPC); |
554e0a8d | 536 | } |
d9c7edf6 | 537 | |
f1e3656e | 538 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 539 | |
ba449e44 | 540 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 541 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
542 | exit_cleanup(RERR_IPC); |
543 | } | |
544 | ||
545 | if (pid == 0) { | |
554e0a8d | 546 | close(error_pipe[0]); |
41cfde6b WD |
547 | if (need_name_pipe) { |
548 | close(name_pipe[1]); | |
549 | set_blocking(name_pipe[0]); | |
550 | } else | |
551 | name_pipe[0] = -1; | |
3a69fad0 WD |
552 | if (f_in != f_out) |
553 | close(f_out); | |
e08c9610 | 554 | |
554e0a8d | 555 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 556 | close_multiplexing_out(); |
554e0a8d AT |
557 | |
558 | /* set place to send errors */ | |
f1e3656e | 559 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 560 | |
41cfde6b | 561 | recv_files(f_in, flist, local_name, name_pipe[0]); |
f1e3656e | 562 | io_flush(FULL_FLUSH); |
ba5e128d | 563 | report(f_in); |
e08c9610 | 564 | |
f1e3656e WD |
565 | send_msg(MSG_DONE, "", 0); |
566 | io_flush(FULL_FLUSH); | |
4e0fcd85 | 567 | |
40df65fd WD |
568 | /* Handle any keep-alive packets from the post-processing work |
569 | * that the generator does. */ | |
4e0fcd85 | 570 | if (protocol_version >= 29) { |
051182cb | 571 | kluge_around_eof = -1; |
1a8e5c97 WD |
572 | |
573 | /* This should only get stopped via a USR2 signal. */ | |
574 | while (read_int(f_in) == flist->count | |
575 | && read_shortint(f_in) == ITEM_IS_NEW) {} | |
576 | ||
577 | rprintf(FERROR, "Invalid packet from server at end of run.\n"); | |
578 | exit_cleanup(RERR_PROTOCOL); | |
4e0fcd85 WD |
579 | } |
580 | ||
9e0582f9 WD |
581 | /* Finally, we go to sleep until our parent kills us with a |
582 | * USR2 signal. We sleep for a short time, as on some OSes | |
583 | * a signal won't interrupt a sleep! */ | |
f1e3656e WD |
584 | while (1) |
585 | msleep(20); | |
d186eb1a | 586 | } |
dc5ddbcc | 587 | |
b695f242 | 588 | am_generator = 1; |
9eeb3b9c | 589 | close_multiplexing_in(); |
b9f592fb WD |
590 | if (write_batch) |
591 | stop_write_batch(); | |
b695f242 | 592 | |
554e0a8d | 593 | close(error_pipe[1]); |
41cfde6b WD |
594 | if (need_name_pipe) { |
595 | close(name_pipe[0]); | |
596 | set_nonblocking(name_pipe[1]); | |
597 | } else | |
598 | name_pipe[1] = -1; | |
3a69fad0 WD |
599 | if (f_in != f_out) |
600 | close(f_in); | |
e1b3d5c4 | 601 | |
da3478b2 | 602 | io_start_buffering_out(); |
b3e10ed7 | 603 | |
f1e3656e | 604 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 605 | |
41cfde6b | 606 | generate_files(f_out, flist, local_name, name_pipe[1]); |
8d9dc9f9 | 607 | |
e5fbaa71 | 608 | report(-1); |
f1e3656e | 609 | io_flush(FULL_FLUSH); |
d04e9c51 | 610 | if (protocol_version >= 24) { |
8ada7518 AT |
611 | /* send a final goodbye message */ |
612 | write_int(f_out, -1); | |
613 | } | |
f1e3656e | 614 | io_flush(FULL_FLUSH); |
8ada7518 | 615 | |
f1e3656e | 616 | set_msg_fd_in(-1); |
089a2435 | 617 | kill(pid, SIGUSR2); |
d79d1c69 | 618 | wait_process(pid, &status); |
d186eb1a | 619 | return status; |
dc5ddbcc AT |
620 | } |
621 | ||
c627d613 | 622 | |
9486289c | 623 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 624 | { |
7a6421fa AT |
625 | int status; |
626 | struct file_list *flist; | |
6c2e5b56 | 627 | char *local_name = NULL; |
7a6421fa | 628 | char *dir = NULL; |
07bff66f WD |
629 | int save_verbose = verbose; |
630 | ||
631 | if (filesfrom_fd >= 0) { | |
632 | /* We can't mix messages with files-from data on the socket, | |
633 | * so temporarily turn off verbose messages. */ | |
634 | verbose = 0; | |
635 | } | |
f0fca04e | 636 | |
45e08edb WD |
637 | if (verbose > 2) { |
638 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
639 | argc, (long)getpid()); | |
640 | } | |
09b7f5db | 641 | |
2adbcdc7 | 642 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
643 | rprintf(FERROR,"ERROR: module is read only\n"); |
644 | exit_cleanup(RERR_SYNTAX); | |
645 | return; | |
646 | } | |
647 | ||
d9c7edf6 | 648 | |
7a6421fa AT |
649 | if (argc > 0) { |
650 | dir = argv[0]; | |
651 | argc--; | |
652 | argv++; | |
59187666 | 653 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
654 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
655 | full_fname(dir)); | |
65417579 | 656 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 657 | } |
7a6421fa | 658 | } |
c627d613 | 659 | |
da3478b2 | 660 | io_start_buffering_in(); |
57dee64e | 661 | recv_filter_list(f_in); |
c627d613 | 662 | |
7c2a9e76 | 663 | if (filesfrom_fd >= 0) { |
07bff66f WD |
664 | /* We need to send the files-from names to the sender at the |
665 | * same time that we receive the file-list from them, so we | |
666 | * need the IO routines to automatically write out the names | |
667 | * onto our f_out socket as we read the file-list. This | |
668 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
669 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
670 | filesfrom_fd = -1; | |
671 | } | |
672 | ||
b9f592fb | 673 | flist = recv_file_list(f_in); |
07bff66f | 674 | verbose = save_verbose; |
4c36a13e AT |
675 | if (!flist) { |
676 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 677 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 678 | } |
d9c7edf6 WD |
679 | |
680 | if (argc > 0) { | |
7a6421fa AT |
681 | if (strcmp(dir,".")) { |
682 | argv[0] += strlen(dir); | |
3a69fad0 WD |
683 | if (argv[0][0] == '/') |
684 | argv[0]++; | |
7a6421fa AT |
685 | } |
686 | local_name = get_local_name(flist,argv[0]); | |
687 | } | |
c627d613 | 688 | |
7a6421fa AT |
689 | status = do_recv(f_in,f_out,flist,local_name); |
690 | exit_cleanup(status); | |
c627d613 AT |
691 | } |
692 | ||
693 | ||
734a94a2 | 694 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
695 | { |
696 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 697 | return 0; |
25d34a5c MP |
698 | } |
699 | ||
700 | ||
9486289c | 701 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 702 | { |
f0359dd0 AT |
703 | set_nonblocking(f_in); |
704 | set_nonblocking(f_out); | |
705 | ||
da3478b2 WD |
706 | io_set_sock_fds(f_in, f_out); |
707 | setup_protocol(f_out, f_in); | |
708 | ||
d04e9c51 | 709 | if (protocol_version >= 23) |
da3478b2 | 710 | io_start_multiplex_out(); |
7a6421fa | 711 | |
7a6421fa | 712 | if (am_sender) { |
83926d3c | 713 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
714 | if (need_messages_from_generator) |
715 | io_start_multiplex_in(); | |
9b3318b0 | 716 | |
7842418b | 717 | recv_filter_list(f_in); |
7a6421fa AT |
718 | do_server_sender(f_in, f_out, argc, argv); |
719 | } else { | |
720 | do_server_recv(f_in, f_out, argc, argv); | |
721 | } | |
722 | exit_cleanup(0); | |
366345fe AT |
723 | } |
724 | ||
0ba48136 MP |
725 | |
726 | /* | |
727 | * This is called once the connection has been negotiated. It is used | |
728 | * for rsyncd, remote-shell, and local connections. | |
729 | */ | |
19b27a48 | 730 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 731 | { |
088aac85 | 732 | struct file_list *flist = NULL; |
9486289c AT |
733 | int status = 0, status2 = 0; |
734 | char *local_name = NULL; | |
19b27a48 AT |
735 | |
736 | cleanup_child_pid = pid; | |
67a28eb2 | 737 | if (!read_batch) { |
b9f592fb WD |
738 | set_nonblocking(f_in); |
739 | set_nonblocking(f_out); | |
740 | } | |
f0359dd0 | 741 | |
da3478b2 | 742 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
743 | setup_protocol(f_out,f_in); |
744 | ||
b9f592fb | 745 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 746 | io_start_multiplex_in(); |
d9c7edf6 | 747 | |
18882701 WD |
748 | /* We set our stderr file handle to blocking because ssh might have |
749 | * set it to non-blocking. This can be particularly troublesome if | |
750 | * stderr is a clone of stdout, because ssh would have set our stdout | |
751 | * to non-blocking at the same time (which can easily cause us to lose | |
752 | * output from our print statements). This kluge shouldn't cause ssh | |
753 | * any problems for how we use it. Note also that we delayed setting | |
754 | * this until after the above protocol setup so that we know for sure | |
755 | * that ssh is done twiddling its file descriptors. */ | |
756 | set_blocking(STDERR_FILENO); | |
757 | ||
9486289c | 758 | if (am_sender) { |
83926d3c | 759 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 760 | io_start_buffering_out(); |
860236bf | 761 | if (!filesfrom_host) |
a0a33ee5 | 762 | set_msg_fd_in(f_in); |
57dee64e | 763 | send_filter_list(f_out); |
860236bf | 764 | if (filesfrom_host) |
7c2a9e76 | 765 | filesfrom_fd = f_in; |
b9f592fb WD |
766 | |
767 | if (write_batch) | |
768 | start_write_batch(f_out); | |
64c3523a | 769 | if (!read_batch) /* don't write to pipe */ |
d9c7edf6 | 770 | flist = send_file_list(f_out,argc,argv); |
a0a33ee5 | 771 | set_msg_fd_in(-1); |
d9c7edf6 | 772 | if (verbose > 3) |
9486289c | 773 | rprintf(FINFO,"file list sent\n"); |
e1b3d5c4 | 774 | |
f1e3656e | 775 | io_flush(NORMAL_FLUSH); |
9486289c | 776 | send_files(flist,f_out,f_in); |
f1e3656e | 777 | io_flush(FULL_FLUSH); |
4e0fcd85 WD |
778 | if (protocol_version >= 24) |
779 | read_final_goodbye(f_in, f_out, flist->count); | |
9486289c AT |
780 | if (pid != -1) { |
781 | if (verbose > 3) | |
08a740ff | 782 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 783 | io_flush(FULL_FLUSH); |
d79d1c69 | 784 | wait_process(pid, &status); |
9486289c | 785 | } |
3d382777 | 786 | report(-1); |
f1e3656e | 787 | io_flush(FULL_FLUSH); |
9486289c AT |
788 | exit_cleanup(status); |
789 | } | |
f7632fc6 | 790 | |
bf26aa22 WD |
791 | if (need_messages_from_generator && !read_batch) |
792 | io_start_multiplex_out(); | |
793 | ||
48a1ff0d WD |
794 | if (argc == 0) |
795 | list_only |= 1; | |
d9c7edf6 | 796 | |
57dee64e | 797 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 798 | |
7c2a9e76 WD |
799 | if (filesfrom_fd >= 0) { |
800 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
801 | filesfrom_fd = -1; | |
802 | } | |
803 | ||
b9f592fb WD |
804 | if (write_batch) |
805 | start_write_batch(f_in); | |
9486289c AT |
806 | flist = recv_file_list(f_in); |
807 | if (!flist || flist->count == 0) { | |
796d484b | 808 | rprintf(FINFO, "client: nothing to do: " |
d9c7edf6 WD |
809 | "perhaps you need to specify some filenames or " |
810 | "the --recursive option?\n"); | |
9486289c AT |
811 | exit_cleanup(0); |
812 | } | |
d9c7edf6 | 813 | |
9486289c | 814 | local_name = get_local_name(flist,argv[0]); |
d9c7edf6 | 815 | |
9486289c | 816 | status2 = do_recv(f_in,f_out,flist,local_name); |
d9c7edf6 | 817 | |
9486289c | 818 | if (pid != -1) { |
8d9dc9f9 | 819 | if (verbose > 3) |
08a740ff | 820 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 821 | io_flush(FULL_FLUSH); |
d79d1c69 | 822 | wait_process(pid, &status); |
9486289c | 823 | } |
d9c7edf6 | 824 | |
ff81e809 | 825 | return MAX(status, status2); |
9486289c AT |
826 | } |
827 | ||
7169bb4a MP |
828 | static int copy_argv (char *argv[]) |
829 | { | |
830 | int i; | |
831 | ||
832 | for (i = 0; argv[i]; i++) { | |
833 | if (!(argv[i] = strdup(argv[i]))) { | |
834 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
835 | __FILE__, __LINE__); | |
836 | return RERR_MALLOC; | |
837 | } | |
838 | } | |
839 | ||
840 | return 0; | |
841 | } | |
842 | ||
843 | ||
c1a04ecb | 844 | /** |
0ba48136 MP |
845 | * Start a client for either type of remote connection. Work out |
846 | * whether the arguments request a remote shell or rsyncd connection, | |
847 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
848 | * |
849 | * Calls either start_socket_client (for sockets) or do_cmd and | |
850 | * client_run (for ssh). | |
c1a04ecb | 851 | **/ |
fc8a6b97 | 852 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
853 | { |
854 | char *p; | |
855 | char *shell_machine = NULL; | |
856 | char *shell_path = NULL; | |
857 | char *shell_user = NULL; | |
19b27a48 AT |
858 | int ret; |
859 | pid_t pid; | |
5d6bcd44 | 860 | int f_in,f_out; |
7169bb4a MP |
861 | int rc; |
862 | ||
863 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 864 | * command line. */ |
75aeac44 | 865 | if ((rc = copy_argv(argv))) |
7169bb4a | 866 | return rc; |
5d6bcd44 | 867 | |
d16c245f | 868 | if (!read_batch) { /* for read_batch, NO source is specified */ |
42ccb4c0 | 869 | argc--; |
860236bf WD |
870 | shell_path = check_for_hostspec(argv[0], &shell_machine, &rsync_port); |
871 | if (shell_path) { /* source is remote */ | |
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 | { | |
40df65fd | 987 | close_all(); |
19b27a48 | 988 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
989 | _exit(0); |
990 | } | |
991 | ||
067669da WD |
992 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
993 | { | |
029c1713 | 994 | #ifdef WNOHANG |
ee7118a8 DD |
995 | int cnt, status; |
996 | pid_t pid; | |
997 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 998 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
999 | * out we're instead saving the child exit statuses for later use. |
1000 | * The waitpid() loop presumably eliminates all possibility of leaving | |
1001 | * zombie children, maybe that's why he did it. | |
1002 | */ | |
1003 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
9af87151 WD |
1004 | /* save the child's exit status */ |
1005 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1006 | if (pid_stat_table[cnt].pid == 0) { | |
1007 | pid_stat_table[cnt].pid = pid; | |
1008 | pid_stat_table[cnt].status = status; | |
1009 | break; | |
1010 | } | |
1011 | } | |
ee7118a8 | 1012 | } |
029c1713 | 1013 | #endif |
19b27a48 AT |
1014 | } |
1015 | ||
c0531332 MP |
1016 | |
1017 | /** | |
1018 | * This routine catches signals and tries to send them to gdb. | |
1019 | * | |
1020 | * Because it's called from inside a signal handler it ought not to | |
1021 | * use too many library routines. | |
1022 | * | |
1023 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1024 | * debugging without easy access to X. Perhaps use an environment | |
1025 | * variable, or just call a script? | |
1026 | * | |
1027 | * @todo The /proc/ magic probably only works on Linux (and | |
1028 | * Solaris?) Can we be more portable? | |
1029 | **/ | |
1030 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1031 | const char *get_panic_action(void) |
1032 | { | |
1033 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1034 | ||
1035 | if (cmd_fmt) | |
1036 | return cmd_fmt; | |
1037 | else | |
1038 | return "xterm -display :0 -T Panic -n Panic " | |
1039 | "-e gdb /proc/%d/exe %d"; | |
1040 | } | |
1041 | ||
1042 | ||
9fb3f7a9 MP |
1043 | /** |
1044 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1045 | * | |
1046 | * This signal handler is only installed if we were configured with | |
1047 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1048 | * should just look at the environment variable, but I'm a bit leery | |
1049 | * of a signal sending us into a busy loop. | |
1050 | **/ | |
067669da | 1051 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1052 | { |
1053 | char cmd_buf[300]; | |
1054 | int ret; | |
4fdc39dd MP |
1055 | |
1056 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1057 | getpid(), getpid()); |
1058 | ||
1059 | /* Unless we failed to execute gdb, we allow the process to | |
1060 | * continue. I'm not sure if that's right. */ | |
1061 | ret = system(cmd_buf); | |
1062 | if (ret) | |
1063 | _exit(ret); | |
1064 | } | |
1065 | #endif | |
1066 | ||
1067 | ||
5d6bcd44 | 1068 | int main(int argc,char *argv[]) |
d9c7edf6 | 1069 | { |
ff81e809 | 1070 | int ret; |
66a9dc96 WD |
1071 | int orig_argc = argc; |
1072 | char **orig_argv = argv; | |
5d6bcd44 | 1073 | |
7a6421fa | 1074 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1075 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1076 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1077 | #ifdef MAINTAINER_MODE |
1078 | signal(SIGSEGV, rsync_panic_handler); | |
1079 | signal(SIGFPE, rsync_panic_handler); | |
1080 | signal(SIGABRT, rsync_panic_handler); | |
1081 | signal(SIGBUS, rsync_panic_handler); | |
1082 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1083 | |
7a6421fa | 1084 | starttime = time(NULL); |
6fe05820 | 1085 | am_root = (MY_UID() == 0); |
c627d613 | 1086 | |
a800434a AT |
1087 | memset(&stats, 0, sizeof(stats)); |
1088 | ||
df5e03da AT |
1089 | if (argc < 2) { |
1090 | usage(FERROR); | |
65417579 | 1091 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1092 | } |
1093 | ||
7a6421fa | 1094 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1095 | * carried across */ |
7a6421fa | 1096 | orig_umask = (int)umask(0); |
5d6bcd44 | 1097 | |
50135767 | 1098 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1099 | /* FIXME: We ought to call the same error-handling |
1100 | * code here, rather than relying on getopt. */ | |
50135767 | 1101 | option_error(); |
65417579 | 1102 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1103 | } |
5d6bcd44 | 1104 | |
7a6421fa | 1105 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1106 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1107 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1108 | |
34758d5c MP |
1109 | /* Ignore SIGPIPE; we consistently check error codes and will |
1110 | * see the EPIPE. */ | |
1111 | signal(SIGPIPE, SIG_IGN); | |
1112 | ||
c226b7c2 | 1113 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1114 | * (implemented by forking "pwd" and reading its output) doesn't |
1115 | * work when there are other child processes. Also, on all systems | |
1116 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1117 | push_dir(NULL); |
c226b7c2 | 1118 | |
44e9e221 WD |
1119 | init_flist(); |
1120 | ||
b9f592fb WD |
1121 | if (write_batch || read_batch) { |
1122 | if (write_batch) | |
66a9dc96 | 1123 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1124 | |
dbbab0c4 WD |
1125 | if (read_batch && strcmp(batch_name, "-") == 0) |
1126 | batch_fd = STDIN_FILENO; | |
1127 | else { | |
1128 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1129 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1130 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1131 | } |
b9f592fb WD |
1132 | if (batch_fd < 0) { |
1133 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1134 | full_fname(batch_name)); |
b9f592fb WD |
1135 | exit_cleanup(RERR_FILEIO); |
1136 | } | |
9459290a WD |
1137 | if (read_batch) |
1138 | read_stream_flags(batch_fd); | |
6902ed17 MP |
1139 | } |
1140 | ||
75aeac44 | 1141 | if (am_daemon && !am_server) |
7a6421fa | 1142 | return daemon_main(); |
f0fca04e | 1143 | |
08ac228f AT |
1144 | if (argc < 1) { |
1145 | usage(FERROR); | |
65417579 | 1146 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1147 | } |
1148 | ||
7a6421fa | 1149 | if (am_server) { |
f0359dd0 AT |
1150 | set_nonblocking(STDIN_FILENO); |
1151 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1152 | if (am_daemon) |
1153 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1154 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1155 | } | |
c627d613 | 1156 | |
ff81e809 | 1157 | ret = start_client(argc, argv); |
d9c7edf6 | 1158 | if (ret == -1) |
9098bbf3 | 1159 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1160 | else |
9098bbf3 MP |
1161 | exit_cleanup(ret); |
1162 | ||
0f5a04e3 | 1163 | return ret; |
c627d613 | 1164 | } |