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; |
32eda096 | 38 | extern int do_stats; |
32eda096 WD |
39 | extern int log_got_error; |
40 | extern int module_id; | |
41 | extern int orig_umask; | |
bb6721dc | 42 | extern int copy_links; |
83926d3c | 43 | extern int keep_dirlinks; |
32eda096 | 44 | extern int preserve_hard_links; |
d04e9c51 | 45 | extern int protocol_version; |
32eda096 | 46 | extern int recurse; |
06b96ffa | 47 | extern int fuzzy_basis; |
32eda096 WD |
48 | extern int relative_paths; |
49 | extern int rsync_port; | |
cb8240a2 | 50 | extern int inplace; |
38e3910b | 51 | extern int make_backups; |
b1df18d7 | 52 | extern int whole_file; |
32eda096 WD |
53 | extern int read_batch; |
54 | extern int write_batch; | |
b9f592fb | 55 | extern int batch_fd; |
c0d8e84c | 56 | extern int batch_gen_fd; |
32eda096 WD |
57 | extern int filesfrom_fd; |
58 | extern pid_t cleanup_child_pid; | |
50839b4b | 59 | extern struct stats stats; |
32eda096 WD |
60 | extern char *files_from; |
61 | extern char *remote_filesfrom_file; | |
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 | ||
4e0fcd85 WD |
431 | static void read_final_goodbye(int f_in, int f_out, int flist_count) |
432 | { | |
433 | if (protocol_version < 29) { | |
434 | read_int(f_in); | |
435 | return; | |
436 | } | |
437 | ||
438 | /* Handle any keep-alive messages from --delete-after processing. */ | |
439 | while (read_int(f_in) == flist_count) { | |
440 | if (read_shortint(f_in) != ITEM_IS_NEW) | |
441 | return; /* Complain? */ | |
442 | write_int(f_out, flist_count); | |
443 | write_shortint(f_out, ITEM_IS_NEW); | |
444 | } | |
445 | } | |
446 | ||
447 | ||
9486289c | 448 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 449 | { |
7a6421fa AT |
450 | int i; |
451 | struct file_list *flist; | |
452 | char *dir = argv[0]; | |
c627d613 | 453 | |
45e08edb WD |
454 | if (verbose > 2) { |
455 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
456 | (long)getpid()); | |
457 | } | |
d9c7edf6 | 458 | |
2adbcdc7 | 459 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
460 | rprintf(FERROR, "ERROR: module is write only\n"); |
461 | exit_cleanup(RERR_SYNTAX); | |
462 | return; | |
463 | } | |
bf26aa22 WD |
464 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
465 | rprintf(FERROR, | |
466 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
467 | exit_cleanup(RERR_SYNTAX); | |
468 | return; | |
469 | } | |
7a92ded3 | 470 | |
59187666 | 471 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
472 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
473 | full_fname(dir)); | |
65417579 | 474 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
475 | } |
476 | argc--; | |
477 | argv++; | |
d9c7edf6 | 478 | |
7a6421fa AT |
479 | if (strcmp(dir,".")) { |
480 | int l = strlen(dir); | |
d9c7edf6 | 481 | if (strcmp(dir,"/") == 0) |
7a6421fa | 482 | l = 0; |
e7a392c7 | 483 | for (i = 0; i < argc; i++) |
7a6421fa AT |
484 | argv[i] += l+1; |
485 | } | |
c627d613 | 486 | |
48a1ff0d | 487 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 488 | argc = 1; |
7a6421fa AT |
489 | argv--; |
490 | argv[0] = "."; | |
491 | } | |
d9c7edf6 | 492 | |
7a6421fa | 493 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
494 | if (!flist || flist->count == 0) { |
495 | exit_cleanup(0); | |
496 | } | |
497 | ||
da3478b2 WD |
498 | io_start_buffering_in(); |
499 | io_start_buffering_out(); | |
500 | ||
7a6421fa | 501 | send_files(flist,f_out,f_in); |
f1e3656e | 502 | io_flush(FULL_FLUSH); |
7a6421fa | 503 | report(f_out); |
4e0fcd85 WD |
504 | if (protocol_version >= 24) |
505 | read_final_goodbye(f_in, f_out, flist->count); | |
f1e3656e | 506 | io_flush(FULL_FLUSH); |
7a6421fa | 507 | exit_cleanup(0); |
c627d613 AT |
508 | } |
509 | ||
510 | ||
dc5ddbcc AT |
511 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
512 | { | |
d186eb1a | 513 | int pid; |
e1f67417 | 514 | int status = 0; |
41cfde6b | 515 | int error_pipe[2], name_pipe[2]; |
cb8240a2 | 516 | BOOL need_name_pipe = (basis_dir[0] || partial_dir || fuzzy_basis |
38e3910b | 517 | || (inplace && make_backups)) && !dry_run; |
dc5ddbcc | 518 | |
bb6721dc WD |
519 | /* The receiving side mustn't obey this, or an existing symlink that |
520 | * points to an identical file won't be replaced by the referent. */ | |
521 | copy_links = 0; | |
522 | ||
d186eb1a AT |
523 | if (preserve_hard_links) |
524 | init_hard_links(flist); | |
dc5ddbcc | 525 | |
41cfde6b WD |
526 | if (fd_pair(error_pipe) < 0 |
527 | || (need_name_pipe && fd_pair(name_pipe) < 0)) { | |
ab759cd2 | 528 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 529 | exit_cleanup(RERR_IPC); |
554e0a8d | 530 | } |
d9c7edf6 | 531 | |
f1e3656e | 532 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 533 | |
ba449e44 | 534 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 535 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
536 | exit_cleanup(RERR_IPC); |
537 | } | |
538 | ||
539 | if (pid == 0) { | |
554e0a8d | 540 | close(error_pipe[0]); |
41cfde6b WD |
541 | if (need_name_pipe) { |
542 | close(name_pipe[1]); | |
543 | set_blocking(name_pipe[0]); | |
544 | } else | |
545 | name_pipe[0] = -1; | |
3a69fad0 WD |
546 | if (f_in != f_out) |
547 | close(f_out); | |
e08c9610 | 548 | |
554e0a8d | 549 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 550 | close_multiplexing_out(); |
554e0a8d AT |
551 | |
552 | /* set place to send errors */ | |
f1e3656e | 553 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 554 | |
41cfde6b | 555 | recv_files(f_in, flist, local_name, name_pipe[0]); |
f1e3656e | 556 | io_flush(FULL_FLUSH); |
ba5e128d | 557 | report(f_in); |
e08c9610 | 558 | |
f1e3656e WD |
559 | send_msg(MSG_DONE, "", 0); |
560 | io_flush(FULL_FLUSH); | |
4e0fcd85 WD |
561 | |
562 | /* Finally, we hang around until our parent kills us with a | |
563 | * USR2 signal. If --delete-after was specified, we might get | |
564 | * a keep-alive message over the socket, so handle that too. */ | |
565 | if (protocol_version >= 29) { | |
566 | while (read_int(f_in) == flist->count) { | |
567 | if (read_shortint(f_in) != ITEM_IS_NEW) | |
568 | break; /* Complain? */ | |
569 | } | |
570 | } | |
571 | ||
f1e3656e WD |
572 | while (1) |
573 | msleep(20); | |
d186eb1a | 574 | } |
dc5ddbcc | 575 | |
b695f242 | 576 | am_generator = 1; |
9eeb3b9c | 577 | close_multiplexing_in(); |
b9f592fb WD |
578 | if (write_batch) |
579 | stop_write_batch(); | |
b695f242 | 580 | |
554e0a8d | 581 | close(error_pipe[1]); |
41cfde6b WD |
582 | if (need_name_pipe) { |
583 | close(name_pipe[0]); | |
584 | set_nonblocking(name_pipe[1]); | |
585 | } else | |
586 | name_pipe[1] = -1; | |
3a69fad0 WD |
587 | if (f_in != f_out) |
588 | close(f_in); | |
e1b3d5c4 | 589 | |
da3478b2 | 590 | io_start_buffering_out(); |
b3e10ed7 | 591 | |
f1e3656e | 592 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 593 | |
41cfde6b | 594 | generate_files(f_out, flist, local_name, name_pipe[1]); |
8d9dc9f9 | 595 | |
e5fbaa71 | 596 | report(-1); |
f1e3656e | 597 | io_flush(FULL_FLUSH); |
d04e9c51 | 598 | if (protocol_version >= 24) { |
8ada7518 AT |
599 | /* send a final goodbye message */ |
600 | write_int(f_out, -1); | |
601 | } | |
f1e3656e | 602 | io_flush(FULL_FLUSH); |
8ada7518 | 603 | |
f1e3656e | 604 | set_msg_fd_in(-1); |
089a2435 | 605 | kill(pid, SIGUSR2); |
d79d1c69 | 606 | wait_process(pid, &status); |
d186eb1a | 607 | return status; |
dc5ddbcc AT |
608 | } |
609 | ||
c627d613 | 610 | |
9486289c | 611 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 612 | { |
7a6421fa AT |
613 | int status; |
614 | struct file_list *flist; | |
6c2e5b56 | 615 | char *local_name = NULL; |
7a6421fa | 616 | char *dir = NULL; |
07bff66f WD |
617 | int save_verbose = verbose; |
618 | ||
619 | if (filesfrom_fd >= 0) { | |
620 | /* We can't mix messages with files-from data on the socket, | |
621 | * so temporarily turn off verbose messages. */ | |
622 | verbose = 0; | |
623 | } | |
f0fca04e | 624 | |
45e08edb WD |
625 | if (verbose > 2) { |
626 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
627 | argc, (long)getpid()); | |
628 | } | |
09b7f5db | 629 | |
2adbcdc7 | 630 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
631 | rprintf(FERROR,"ERROR: module is read only\n"); |
632 | exit_cleanup(RERR_SYNTAX); | |
633 | return; | |
634 | } | |
635 | ||
d9c7edf6 | 636 | |
7a6421fa AT |
637 | if (argc > 0) { |
638 | dir = argv[0]; | |
639 | argc--; | |
640 | argv++; | |
59187666 | 641 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
642 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
643 | full_fname(dir)); | |
65417579 | 644 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 645 | } |
7a6421fa | 646 | } |
c627d613 | 647 | |
da3478b2 | 648 | io_start_buffering_in(); |
57dee64e | 649 | recv_filter_list(f_in); |
c627d613 | 650 | |
7c2a9e76 | 651 | if (filesfrom_fd >= 0) { |
07bff66f WD |
652 | /* We need to send the files-from names to the sender at the |
653 | * same time that we receive the file-list from them, so we | |
654 | * need the IO routines to automatically write out the names | |
655 | * onto our f_out socket as we read the file-list. This | |
656 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
657 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
658 | filesfrom_fd = -1; | |
659 | } | |
660 | ||
b9f592fb | 661 | flist = recv_file_list(f_in); |
07bff66f | 662 | verbose = save_verbose; |
4c36a13e AT |
663 | if (!flist) { |
664 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 665 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 666 | } |
d9c7edf6 WD |
667 | |
668 | if (argc > 0) { | |
7a6421fa AT |
669 | if (strcmp(dir,".")) { |
670 | argv[0] += strlen(dir); | |
3a69fad0 WD |
671 | if (argv[0][0] == '/') |
672 | argv[0]++; | |
7a6421fa AT |
673 | } |
674 | local_name = get_local_name(flist,argv[0]); | |
675 | } | |
c627d613 | 676 | |
7a6421fa AT |
677 | status = do_recv(f_in,f_out,flist,local_name); |
678 | exit_cleanup(status); | |
c627d613 AT |
679 | } |
680 | ||
681 | ||
734a94a2 | 682 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
683 | { |
684 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 685 | return 0; |
25d34a5c MP |
686 | } |
687 | ||
688 | ||
9486289c | 689 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 690 | { |
f0359dd0 AT |
691 | set_nonblocking(f_in); |
692 | set_nonblocking(f_out); | |
693 | ||
da3478b2 WD |
694 | io_set_sock_fds(f_in, f_out); |
695 | setup_protocol(f_out, f_in); | |
696 | ||
d04e9c51 | 697 | if (protocol_version >= 23) |
da3478b2 | 698 | io_start_multiplex_out(); |
7a6421fa | 699 | |
7a6421fa | 700 | if (am_sender) { |
83926d3c | 701 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
702 | if (need_messages_from_generator) |
703 | io_start_multiplex_in(); | |
9b3318b0 | 704 | |
7842418b | 705 | recv_filter_list(f_in); |
7a6421fa AT |
706 | do_server_sender(f_in, f_out, argc, argv); |
707 | } else { | |
708 | do_server_recv(f_in, f_out, argc, argv); | |
709 | } | |
710 | exit_cleanup(0); | |
366345fe AT |
711 | } |
712 | ||
0ba48136 MP |
713 | |
714 | /* | |
715 | * This is called once the connection has been negotiated. It is used | |
716 | * for rsyncd, remote-shell, and local connections. | |
717 | */ | |
19b27a48 | 718 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 719 | { |
088aac85 | 720 | struct file_list *flist = NULL; |
9486289c AT |
721 | int status = 0, status2 = 0; |
722 | char *local_name = NULL; | |
19b27a48 AT |
723 | |
724 | cleanup_child_pid = pid; | |
67a28eb2 | 725 | if (!read_batch) { |
b9f592fb WD |
726 | set_nonblocking(f_in); |
727 | set_nonblocking(f_out); | |
728 | } | |
f0359dd0 | 729 | |
da3478b2 | 730 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
731 | setup_protocol(f_out,f_in); |
732 | ||
b9f592fb | 733 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 734 | io_start_multiplex_in(); |
d9c7edf6 | 735 | |
18882701 WD |
736 | /* We set our stderr file handle to blocking because ssh might have |
737 | * set it to non-blocking. This can be particularly troublesome if | |
738 | * stderr is a clone of stdout, because ssh would have set our stdout | |
739 | * to non-blocking at the same time (which can easily cause us to lose | |
740 | * output from our print statements). This kluge shouldn't cause ssh | |
741 | * any problems for how we use it. Note also that we delayed setting | |
742 | * this until after the above protocol setup so that we know for sure | |
743 | * that ssh is done twiddling its file descriptors. */ | |
744 | set_blocking(STDERR_FILENO); | |
745 | ||
9486289c | 746 | if (am_sender) { |
83926d3c | 747 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 748 | io_start_buffering_out(); |
a0a33ee5 WD |
749 | if (!remote_filesfrom_file) |
750 | set_msg_fd_in(f_in); | |
57dee64e | 751 | send_filter_list(f_out); |
7c2a9e76 WD |
752 | if (remote_filesfrom_file) |
753 | filesfrom_fd = f_in; | |
b9f592fb WD |
754 | |
755 | if (write_batch) | |
756 | start_write_batch(f_out); | |
64c3523a | 757 | if (!read_batch) /* don't write to pipe */ |
d9c7edf6 | 758 | flist = send_file_list(f_out,argc,argv); |
a0a33ee5 | 759 | set_msg_fd_in(-1); |
d9c7edf6 | 760 | if (verbose > 3) |
9486289c | 761 | rprintf(FINFO,"file list sent\n"); |
e1b3d5c4 | 762 | |
f1e3656e | 763 | io_flush(NORMAL_FLUSH); |
9486289c | 764 | send_files(flist,f_out,f_in); |
f1e3656e | 765 | io_flush(FULL_FLUSH); |
4e0fcd85 WD |
766 | if (protocol_version >= 24) |
767 | read_final_goodbye(f_in, f_out, flist->count); | |
9486289c AT |
768 | if (pid != -1) { |
769 | if (verbose > 3) | |
08a740ff | 770 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 771 | io_flush(FULL_FLUSH); |
d79d1c69 | 772 | wait_process(pid, &status); |
9486289c | 773 | } |
3d382777 | 774 | report(-1); |
f1e3656e | 775 | io_flush(FULL_FLUSH); |
9486289c AT |
776 | exit_cleanup(status); |
777 | } | |
f7632fc6 | 778 | |
bf26aa22 WD |
779 | if (need_messages_from_generator && !read_batch) |
780 | io_start_multiplex_out(); | |
781 | ||
48a1ff0d WD |
782 | if (argc == 0) |
783 | list_only |= 1; | |
d9c7edf6 | 784 | |
57dee64e | 785 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 786 | |
7c2a9e76 WD |
787 | if (filesfrom_fd >= 0) { |
788 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
789 | filesfrom_fd = -1; | |
790 | } | |
791 | ||
b9f592fb WD |
792 | if (write_batch) |
793 | start_write_batch(f_in); | |
9486289c AT |
794 | flist = recv_file_list(f_in); |
795 | if (!flist || flist->count == 0) { | |
796d484b | 796 | rprintf(FINFO, "client: nothing to do: " |
d9c7edf6 WD |
797 | "perhaps you need to specify some filenames or " |
798 | "the --recursive option?\n"); | |
9486289c AT |
799 | exit_cleanup(0); |
800 | } | |
d9c7edf6 | 801 | |
9486289c | 802 | local_name = get_local_name(flist,argv[0]); |
d9c7edf6 | 803 | |
9486289c | 804 | status2 = do_recv(f_in,f_out,flist,local_name); |
d9c7edf6 | 805 | |
9486289c | 806 | if (pid != -1) { |
8d9dc9f9 | 807 | if (verbose > 3) |
08a740ff | 808 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 809 | io_flush(FULL_FLUSH); |
d79d1c69 | 810 | wait_process(pid, &status); |
9486289c | 811 | } |
d9c7edf6 | 812 | |
ff81e809 | 813 | return MAX(status, status2); |
9486289c AT |
814 | } |
815 | ||
7169bb4a MP |
816 | static int copy_argv (char *argv[]) |
817 | { | |
818 | int i; | |
819 | ||
820 | for (i = 0; argv[i]; i++) { | |
821 | if (!(argv[i] = strdup(argv[i]))) { | |
822 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
823 | __FILE__, __LINE__); | |
824 | return RERR_MALLOC; | |
825 | } | |
826 | } | |
827 | ||
828 | return 0; | |
829 | } | |
830 | ||
831 | ||
c1a04ecb | 832 | /** |
0ba48136 MP |
833 | * Start a client for either type of remote connection. Work out |
834 | * whether the arguments request a remote shell or rsyncd connection, | |
835 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
836 | * |
837 | * Calls either start_socket_client (for sockets) or do_cmd and | |
838 | * client_run (for ssh). | |
c1a04ecb | 839 | **/ |
fc8a6b97 | 840 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
841 | { |
842 | char *p; | |
843 | char *shell_machine = NULL; | |
844 | char *shell_path = NULL; | |
845 | char *shell_user = NULL; | |
19b27a48 AT |
846 | int ret; |
847 | pid_t pid; | |
5d6bcd44 | 848 | int f_in,f_out; |
7169bb4a MP |
849 | int rc; |
850 | ||
851 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 852 | * command line. */ |
75aeac44 | 853 | if ((rc = copy_argv(argv))) |
7169bb4a | 854 | return rc; |
5d6bcd44 | 855 | |
75aeac44 | 856 | /* rsync:// always uses rsync server over direct socket connection */ |
b9f592fb WD |
857 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0 |
858 | && !read_batch) { | |
f7632fc6 AT |
859 | char *host, *path; |
860 | ||
7169bb4a | 861 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
862 | p = strchr(host,'/'); |
863 | if (p) { | |
50b31539 | 864 | *p = '\0'; |
f7632fc6 | 865 | path = p+1; |
50b31539 | 866 | } else |
a125c82a | 867 | path = ""; |
50b31539 WD |
868 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
869 | host++; | |
870 | *p++ = '\0'; | |
871 | if (*p != ':') | |
872 | p = NULL; | |
873 | } else | |
874 | p = strchr(host, ':'); | |
2acf81eb DD |
875 | if (p) { |
876 | rsync_port = atoi(p+1); | |
50b31539 | 877 | *p = '\0'; |
cf510ad2 | 878 | } |
f7632fc6 AT |
879 | return start_socket_client(host, path, argc-1, argv+1); |
880 | } | |
881 | ||
d16c245f | 882 | if (!read_batch) { /* for read_batch, NO source is specified */ |
a125c82a | 883 | p = find_colon(argv[0]); |
d16c245f | 884 | if (p) { /* source is remote */ |
7c2a9e76 WD |
885 | if (remote_filesfrom_file |
886 | && remote_filesfrom_file != files_from + 1 | |
887 | && strncmp(files_from, argv[0], p-argv[0]+1) != 0) { | |
888 | rprintf(FERROR, | |
50b31539 | 889 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
890 | exit_cleanup(RERR_SYNTAX); |
891 | } | |
d9c7edf6 WD |
892 | if (p[1] == ':') { /* double colon */ |
893 | *p = 0; | |
894 | if (!shell_cmd) { | |
895 | return start_socket_client(argv[0], p+2, | |
896 | argc-1, argv+1); | |
897 | } | |
898 | p++; | |
899 | daemon_over_rsh = 1; | |
75aeac44 | 900 | } |
3591c066 | 901 | |
d16c245f | 902 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
903 | usage(FERROR); |
904 | exit_cleanup(RERR_SYNTAX); | |
905 | } | |
a125c82a | 906 | |
d9c7edf6 WD |
907 | am_sender = 0; |
908 | *p = 0; | |
909 | shell_machine = argv[0]; | |
910 | shell_path = p+1; | |
d9c7edf6 | 911 | argv++; |
d16c245f | 912 | } else { /* source is local */ |
d9c7edf6 WD |
913 | am_sender = 1; |
914 | ||
915 | /* rsync:// destination uses rsync server over direct socket */ | |
916 | if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) { | |
917 | char *host, *path; | |
918 | ||
919 | host = argv[argc-1] + strlen(URL_PREFIX); | |
920 | p = strchr(host,'/'); | |
921 | if (p) { | |
50b31539 | 922 | *p = '\0'; |
d9c7edf6 | 923 | path = p+1; |
50b31539 | 924 | } else |
d9c7edf6 | 925 | path = ""; |
50b31539 WD |
926 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
927 | host++; | |
928 | *p++ = '\0'; | |
929 | if (*p != ':') | |
930 | p = NULL; | |
931 | } else | |
932 | p = strchr(host, ':'); | |
d9c7edf6 WD |
933 | if (p) { |
934 | rsync_port = atoi(p+1); | |
50b31539 | 935 | *p = '\0'; |
cf510ad2 | 936 | } |
d9c7edf6 | 937 | return start_socket_client(host, path, argc-1, argv); |
a125c82a | 938 | } |
d9c7edf6 | 939 | |
d16c245f | 940 | p = find_colon(argv[argc-1]); /* look in dest arg */ |
7c2a9e76 WD |
941 | if (p && remote_filesfrom_file |
942 | && remote_filesfrom_file != files_from + 1 | |
943 | && strncmp(files_from, argv[argc-1], p-argv[argc-1]+1) != 0) { | |
944 | rprintf(FERROR, | |
50b31539 | 945 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
946 | exit_cleanup(RERR_SYNTAX); |
947 | } | |
d16c245f | 948 | if (!p) { /* no colon found, so src & dest are local */ |
d9c7edf6 | 949 | local_server = 1; |
7c2a9e76 WD |
950 | if (remote_filesfrom_file) { |
951 | rprintf(FERROR, | |
50b31539 | 952 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
953 | exit_cleanup(RERR_SYNTAX); |
954 | } | |
d9c7edf6 | 955 | } else if (p[1] == ':') { /* double colon */ |
a125c82a | 956 | *p = 0; |
d9c7edf6 WD |
957 | if (!shell_cmd) { |
958 | return start_socket_client(argv[argc-1], p+2, | |
959 | argc-1, argv); | |
960 | } | |
961 | p++; | |
962 | daemon_over_rsh = 1; | |
a125c82a | 963 | } |
a125c82a | 964 | |
d9c7edf6 WD |
965 | if (argc < 2) { |
966 | usage(FERROR); | |
967 | exit_cleanup(RERR_SYNTAX); | |
75aeac44 | 968 | } |
3591c066 | 969 | |
d9c7edf6 WD |
970 | if (local_server) { |
971 | shell_machine = NULL; | |
972 | shell_path = argv[argc-1]; | |
973 | } else { | |
974 | *p = 0; | |
975 | shell_machine = argv[argc-1]; | |
976 | shell_path = p+1; | |
977 | } | |
5d6bcd44 | 978 | } |
d16c245f WD |
979 | argc--; |
980 | } else { /* read_batch */ | |
d9c7edf6 WD |
981 | local_server = 1; |
982 | shell_path = argv[argc-1]; | |
b9f592fb WD |
983 | if (find_colon(shell_path)) { |
984 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); | |
985 | exit_cleanup(RERR_SYNTAX); | |
986 | } | |
6902ed17 MP |
987 | } |
988 | ||
5d6bcd44 | 989 | if (shell_machine) { |
6fc048f4 | 990 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
991 | if (p) { |
992 | *p = 0; | |
993 | shell_user = shell_machine; | |
994 | shell_machine = p+1; | |
995 | } | |
996 | } | |
997 | ||
998 | if (verbose > 3) { | |
9486289c | 999 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
1000 | shell_cmd ? safe_fname(shell_cmd) : "", |
1001 | shell_machine ? safe_fname(shell_machine) : "", | |
1002 | shell_user ? safe_fname(shell_user) : "", | |
1003 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 1004 | } |
d9c7edf6 | 1005 | |
d16c245f | 1006 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 1007 | if (!am_sender && argc > 1) { |
5d6bcd44 | 1008 | usage(FERROR); |
65417579 | 1009 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 1010 | } |
27e3e9c9 | 1011 | |
d16c245f | 1012 | /* ... or no dest at all */ |
48a1ff0d WD |
1013 | if (!am_sender && argc == 0) |
1014 | list_only |= 1; | |
d9c7edf6 | 1015 | |
75aeac44 WD |
1016 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1017 | &f_in,&f_out); | |
1018 | ||
1019 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1020 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1021 | if (daemon_over_rsh) { |
1022 | int tmpret; | |
1023 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1024 | f_in, f_out, argc); | |
1025 | if (tmpret < 0) | |
1026 | return tmpret; | |
1027 | } | |
1028 | ||
fc8a6b97 AT |
1029 | ret = client_run(f_in, f_out, pid, argc, argv); |
1030 | ||
1031 | fflush(stdout); | |
1032 | fflush(stderr); | |
1033 | ||
1034 | return ret; | |
5d6bcd44 AT |
1035 | } |
1036 | ||
366345fe | 1037 | |
067669da WD |
1038 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1039 | { | |
65417579 | 1040 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
1041 | } |
1042 | ||
067669da WD |
1043 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1044 | { | |
19b27a48 | 1045 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
1046 | _exit(0); |
1047 | } | |
1048 | ||
067669da WD |
1049 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1050 | { | |
029c1713 | 1051 | #ifdef WNOHANG |
ee7118a8 DD |
1052 | int cnt, status; |
1053 | pid_t pid; | |
1054 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1055 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1056 | * out we're instead saving the child exit statuses for later use. |
1057 | * The waitpid() loop presumably eliminates all possibility of leaving | |
1058 | * zombie children, maybe that's why he did it. | |
1059 | */ | |
1060 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
9af87151 WD |
1061 | /* save the child's exit status */ |
1062 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1063 | if (pid_stat_table[cnt].pid == 0) { | |
1064 | pid_stat_table[cnt].pid = pid; | |
1065 | pid_stat_table[cnt].status = status; | |
1066 | break; | |
1067 | } | |
1068 | } | |
ee7118a8 | 1069 | } |
029c1713 | 1070 | #endif |
19b27a48 AT |
1071 | } |
1072 | ||
c0531332 MP |
1073 | |
1074 | /** | |
1075 | * This routine catches signals and tries to send them to gdb. | |
1076 | * | |
1077 | * Because it's called from inside a signal handler it ought not to | |
1078 | * use too many library routines. | |
1079 | * | |
1080 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1081 | * debugging without easy access to X. Perhaps use an environment | |
1082 | * variable, or just call a script? | |
1083 | * | |
1084 | * @todo The /proc/ magic probably only works on Linux (and | |
1085 | * Solaris?) Can we be more portable? | |
1086 | **/ | |
1087 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1088 | const char *get_panic_action(void) |
1089 | { | |
1090 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1091 | ||
1092 | if (cmd_fmt) | |
1093 | return cmd_fmt; | |
1094 | else | |
1095 | return "xterm -display :0 -T Panic -n Panic " | |
1096 | "-e gdb /proc/%d/exe %d"; | |
1097 | } | |
1098 | ||
1099 | ||
9fb3f7a9 MP |
1100 | /** |
1101 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1102 | * | |
1103 | * This signal handler is only installed if we were configured with | |
1104 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1105 | * should just look at the environment variable, but I'm a bit leery | |
1106 | * of a signal sending us into a busy loop. | |
1107 | **/ | |
067669da | 1108 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1109 | { |
1110 | char cmd_buf[300]; | |
1111 | int ret; | |
4fdc39dd MP |
1112 | |
1113 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1114 | getpid(), getpid()); |
1115 | ||
1116 | /* Unless we failed to execute gdb, we allow the process to | |
1117 | * continue. I'm not sure if that's right. */ | |
1118 | ret = system(cmd_buf); | |
1119 | if (ret) | |
1120 | _exit(ret); | |
1121 | } | |
1122 | #endif | |
1123 | ||
1124 | ||
5d6bcd44 | 1125 | int main(int argc,char *argv[]) |
d9c7edf6 | 1126 | { |
ff81e809 | 1127 | int ret; |
66a9dc96 WD |
1128 | int orig_argc = argc; |
1129 | char **orig_argv = argv; | |
5d6bcd44 | 1130 | |
7a6421fa | 1131 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1132 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1133 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1134 | #ifdef MAINTAINER_MODE |
1135 | signal(SIGSEGV, rsync_panic_handler); | |
1136 | signal(SIGFPE, rsync_panic_handler); | |
1137 | signal(SIGABRT, rsync_panic_handler); | |
1138 | signal(SIGBUS, rsync_panic_handler); | |
1139 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1140 | |
7a6421fa | 1141 | starttime = time(NULL); |
6fe05820 | 1142 | am_root = (MY_UID() == 0); |
c627d613 | 1143 | |
a800434a AT |
1144 | memset(&stats, 0, sizeof(stats)); |
1145 | ||
df5e03da AT |
1146 | if (argc < 2) { |
1147 | usage(FERROR); | |
65417579 | 1148 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1149 | } |
1150 | ||
7a6421fa | 1151 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1152 | * carried across */ |
7a6421fa | 1153 | orig_umask = (int)umask(0); |
5d6bcd44 | 1154 | |
50135767 | 1155 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1156 | /* FIXME: We ought to call the same error-handling |
1157 | * code here, rather than relying on getopt. */ | |
50135767 | 1158 | option_error(); |
65417579 | 1159 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1160 | } |
5d6bcd44 | 1161 | |
7a6421fa | 1162 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1163 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1164 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1165 | |
34758d5c MP |
1166 | /* Ignore SIGPIPE; we consistently check error codes and will |
1167 | * see the EPIPE. */ | |
1168 | signal(SIGPIPE, SIG_IGN); | |
1169 | ||
c226b7c2 | 1170 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1171 | * (implemented by forking "pwd" and reading its output) doesn't |
1172 | * work when there are other child processes. Also, on all systems | |
1173 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1174 | push_dir(NULL); |
c226b7c2 | 1175 | |
44e9e221 WD |
1176 | init_flist(); |
1177 | ||
b9f592fb WD |
1178 | if (write_batch || read_batch) { |
1179 | if (write_batch) | |
66a9dc96 | 1180 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1181 | |
dbbab0c4 WD |
1182 | if (read_batch && strcmp(batch_name, "-") == 0) |
1183 | batch_fd = STDIN_FILENO; | |
1184 | else { | |
1185 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1186 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1187 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1188 | } |
b9f592fb WD |
1189 | if (batch_fd < 0) { |
1190 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1191 | full_fname(batch_name)); |
b9f592fb WD |
1192 | exit_cleanup(RERR_FILEIO); |
1193 | } | |
9459290a WD |
1194 | if (read_batch) |
1195 | read_stream_flags(batch_fd); | |
6902ed17 MP |
1196 | } |
1197 | ||
75aeac44 | 1198 | if (am_daemon && !am_server) |
7a6421fa | 1199 | return daemon_main(); |
f0fca04e | 1200 | |
08ac228f AT |
1201 | if (argc < 1) { |
1202 | usage(FERROR); | |
65417579 | 1203 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1204 | } |
1205 | ||
7a6421fa | 1206 | if (am_server) { |
f0359dd0 AT |
1207 | set_nonblocking(STDIN_FILENO); |
1208 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1209 | if (am_daemon) |
1210 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1211 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1212 | } | |
c627d613 | 1213 | |
ff81e809 | 1214 | ret = start_client(argc, argv); |
d9c7edf6 | 1215 | if (ret == -1) |
9098bbf3 | 1216 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1217 | else |
9098bbf3 MP |
1218 | exit_cleanup(ret); |
1219 | ||
0f5a04e3 | 1220 | return ret; |
c627d613 | 1221 | } |