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; |
48a1ff0d | 35 | extern int delete_before; |
bf26aa22 | 36 | extern int remove_sent_files; |
32eda096 | 37 | extern int daemon_over_rsh; |
bf26aa22 | 38 | extern int need_messages_from_generator; |
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; | |
b1df18d7 | 51 | extern int whole_file; |
32eda096 WD |
52 | extern int read_batch; |
53 | extern int write_batch; | |
b9f592fb | 54 | extern int batch_fd; |
c0d8e84c | 55 | extern int batch_gen_fd; |
32eda096 WD |
56 | extern int filesfrom_fd; |
57 | extern pid_t cleanup_child_pid; | |
50839b4b | 58 | extern struct stats stats; |
32eda096 WD |
59 | extern char *files_from; |
60 | extern char *remote_filesfrom_file; | |
7162c65d | 61 | extern char *partial_dir; |
c3fad2e2 | 62 | extern char *basis_dir[]; |
32eda096 WD |
63 | extern char *rsync_path; |
64 | extern char *shell_cmd; | |
9b3318b0 | 65 | extern char *batch_name; |
57dee64e WD |
66 | |
67 | int local_server = 0; | |
c627d613 | 68 | |
91c5833b WD |
69 | /* There's probably never more than at most 2 outstanding child processes, |
70 | * but set it higher, just in case. */ | |
ee7118a8 DD |
71 | #define MAXCHILDPROCS 5 |
72 | ||
73 | struct pid_status { | |
74 | pid_t pid; | |
75 | int status; | |
76 | } pid_stat_table[MAXCHILDPROCS]; | |
77 | ||
e5a2b854 | 78 | static void show_malloc_stats(void); |
82980a23 AT |
79 | |
80 | /**************************************************************************** | |
81 | wait for a process to exit, calling io_flush while waiting | |
82 | ****************************************************************************/ | |
83 | void wait_process(pid_t pid, int *status) | |
84 | { | |
ee7118a8 DD |
85 | pid_t waited_pid; |
86 | int cnt; | |
87 | ||
88 | while ((waited_pid = waitpid(pid, status, WNOHANG)) == 0) { | |
a24c6870 | 89 | msleep(20); |
f1e3656e | 90 | io_flush(FULL_FLUSH); |
82980a23 | 91 | } |
d9c7edf6 | 92 | |
6fb812f7 | 93 | if (waited_pid == -1 && errno == ECHILD) { |
ee7118a8 DD |
94 | /* status of requested child no longer available. |
95 | * check to see if it was processed by the sigchld_handler. | |
96 | */ | |
97 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
98 | if (pid == pid_stat_table[cnt].pid) { | |
99 | *status = pid_stat_table[cnt].status; | |
100 | pid_stat_table[cnt].pid = 0; | |
101 | break; | |
102 | } | |
103 | } | |
104 | } | |
105 | ||
d9c7edf6 WD |
106 | /* TODO: If the child exited on a signal, then log an |
107 | * appropriate error message. Perhaps we should also accept a | |
108 | * message describing the purpose of the child. Also indicate | |
109 | * this to the caller so that thhey know something went | |
110 | * wrong. */ | |
82980a23 AT |
111 | *status = WEXITSTATUS(*status); |
112 | } | |
113 | ||
b9f592fb WD |
114 | /* This function gets called from all 3 processes. We want the client side |
115 | * to actually output the text, but the sender is the only process that has | |
116 | * all the stats we need. So, if we're a client sender, we do the report. | |
117 | * If we're a server sender, we write the stats on the supplied fd. If | |
118 | * we're the client receiver we read the stats from the supplied fd and do | |
119 | * the report. All processes might also generate a set of debug stats, if | |
120 | * the verbose level is high enough (this is the only thing that the | |
121 | * generator process and the server receiver ever do here). */ | |
c627d613 AT |
122 | static void report(int f) |
123 | { | |
b9f592fb WD |
124 | /* Cache two stats because the read/write code can change it. */ |
125 | int64 total_read = stats.total_read; | |
126 | int64 total_written = stats.total_written; | |
7a6421fa | 127 | time_t t = time(NULL); |
7a6421fa | 128 | |
7bb7058e | 129 | if (do_stats && verbose > 1) { |
5c15e29f | 130 | /* These come out from every process */ |
7bb7058e | 131 | show_malloc_stats(); |
86943126 | 132 | show_flist_stats(); |
5c15e29f MP |
133 | } |
134 | ||
e5fbaa71 S |
135 | if (am_generator) |
136 | return; | |
137 | ||
248fbb8c | 138 | if (am_daemon) { |
a9766ef1 | 139 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
140 | if (f == -1 || !am_sender) |
141 | return; | |
248fbb8c AT |
142 | } |
143 | ||
e19452a9 | 144 | if (am_server) { |
3e491682 | 145 | if (am_sender) { |
b9f592fb WD |
146 | write_longint(f, total_read); |
147 | write_longint(f, total_written); | |
148 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
149 | if (protocol_version >= 29) { |
150 | write_longint(f, stats.flist_buildtime); | |
151 | write_longint(f, stats.flist_xfertime); | |
152 | } | |
e19452a9 | 153 | } |
7a6421fa AT |
154 | return; |
155 | } | |
e19452a9 DD |
156 | |
157 | /* this is the client */ | |
d9c7edf6 | 158 | |
3e491682 | 159 | if (!am_sender) { |
58c5c245 WD |
160 | /* Read the first two in opposite order because the meaning of |
161 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
162 | total_written = read_longint(f); |
163 | total_read = read_longint(f); | |
a800434a | 164 | stats.total_size = read_longint(f); |
f0f7e760 WD |
165 | if (protocol_version >= 29) { |
166 | stats.flist_buildtime = read_longint(f); | |
167 | stats.flist_xfertime = read_longint(f); | |
168 | } | |
b9f592fb WD |
169 | } else if (write_batch) { |
170 | /* The --read-batch process is going to be a client | |
171 | * receiver, so we need to give it the stats. */ | |
172 | write_longint(batch_fd, total_read); | |
173 | write_longint(batch_fd, total_written); | |
174 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
175 | if (protocol_version >= 29) { |
176 | write_longint(batch_fd, stats.flist_buildtime); | |
177 | write_longint(batch_fd, stats.flist_xfertime); | |
178 | } | |
a800434a AT |
179 | } |
180 | ||
181 | if (do_stats) { | |
1f658d42 | 182 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
183 | rprintf(FINFO,"Number of files transferred: %d\n", |
184 | stats.num_transferred_files); | |
185 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
186 | (double)stats.total_size); | |
187 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
188 | (double)stats.total_transferred_size); | |
189 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
190 | (double)stats.literal_data); | |
191 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
192 | (double)stats.matched_data); | |
1f658d42 | 193 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
194 | if (stats.flist_buildtime) { |
195 | rprintf(FINFO, | |
196 | "File list generation time: %.3f seconds\n", | |
197 | (double)stats.flist_buildtime / 1000); | |
198 | rprintf(FINFO, | |
199 | "File list transfer time: %.3f seconds\n", | |
200 | (double)stats.flist_xfertime / 1000); | |
201 | } | |
4de2a174 | 202 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 203 | (double)total_written); |
4de2a174 | 204 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 205 | (double)total_read); |
7a6421fa | 206 | } |
d9c7edf6 | 207 | |
e19452a9 | 208 | if (verbose || do_stats) { |
b9f592fb | 209 | rprintf(FINFO, |
4de2a174 | 210 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb WD |
211 | (double)total_written, (double)total_read, |
212 | (total_written + total_read)/(0.5 + (t - starttime))); | |
213 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", | |
d9c7edf6 | 214 | (double)stats.total_size, |
b9f592fb | 215 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 216 | } |
fc8a6b97 AT |
217 | |
218 | fflush(stdout); | |
219 | fflush(stderr); | |
c627d613 AT |
220 | } |
221 | ||
222 | ||
e5a2b854 MP |
223 | /** |
224 | * If our C library can get malloc statistics, then show them to FINFO | |
225 | **/ | |
226 | static void show_malloc_stats(void) | |
227 | { | |
4f5b0756 | 228 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
229 | struct mallinfo mi; |
230 | ||
231 | mi = mallinfo(); | |
232 | ||
ce672562 | 233 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
234 | getpid(), am_server ? "server " : "", |
235 | am_daemon ? "daemon " : "", who_am_i()); | |
236 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
237 | (long)mi.arena); | |
238 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
239 | (long)mi.ordblks); | |
240 | rprintf(FINFO, " smblks: %10ld\n", | |
241 | (long)mi.smblks); | |
242 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
243 | (long)mi.hblks); | |
244 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
245 | (long)mi.hblkhd); | |
246 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
247 | (long)mi.arena + mi.hblkhd); | |
248 | rprintf(FINFO, " usmblks: %10ld\n", | |
249 | (long)mi.usmblks); | |
250 | rprintf(FINFO, " fsmblks: %10ld\n", | |
251 | (long)mi.fsmblks); | |
252 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
253 | (long)mi.uordblks); | |
254 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
255 | (long)mi.fordblks); | |
256 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
257 | (long)mi.keepcost); | |
e5a2b854 MP |
258 | #endif /* HAVE_MALLINFO */ |
259 | } | |
260 | ||
261 | ||
0882faa2 | 262 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
263 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
264 | int *f_in, int *f_out) | |
c627d613 | 265 | { |
6c2e5b56 | 266 | int i, argc = 0; |
887e553f | 267 | char *args[MAX_ARGS]; |
19b27a48 | 268 | pid_t ret; |
6c2e5b56 | 269 | char *tok, *dir = NULL; |
bb4aa89c | 270 | int dash_l_set = 0; |
366345fe | 271 | |
088aac85 | 272 | if (!read_batch && !local_server) { |
9af87151 | 273 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 274 | if (!cmd) |
9af87151 | 275 | cmd = rsh_env; |
366345fe AT |
276 | if (!cmd) |
277 | cmd = RSYNC_RSH; | |
278 | cmd = strdup(cmd); | |
d9c7edf6 | 279 | if (!cmd) |
366345fe AT |
280 | goto oom; |
281 | ||
887e553f | 282 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 WD |
283 | /* Comparison leaves rooms for server_options(). */ |
284 | if (argc >= MAX_ARGS - 100) { | |
285 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
887e553f WD |
286 | exit_cleanup(RERR_SYNTAX); |
287 | } | |
366345fe | 288 | args[argc++] = tok; |
887e553f | 289 | } |
c627d613 | 290 | |
d9c7edf6 | 291 | /* check to see if we've already been given '-l user' in |
9af87151 | 292 | * the remote-shell command */ |
bb4aa89c WD |
293 | for (i = 0; i < argc-1; i++) { |
294 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
295 | dash_l_set = 1; | |
296 | } | |
297 | ||
4f5b0756 | 298 | #ifdef HAVE_REMSH |
366345fe AT |
299 | /* remsh (on HPUX) takes the arguments the other way around */ |
300 | args[argc++] = machine; | |
bb4aa89c | 301 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
302 | args[argc++] = "-l"; |
303 | args[argc++] = user; | |
304 | } | |
7b8356d0 | 305 | #else |
bb4aa89c | 306 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
307 | args[argc++] = "-l"; |
308 | args[argc++] = user; | |
309 | } | |
310 | args[argc++] = machine; | |
7b8356d0 | 311 | #endif |
c627d613 | 312 | |
366345fe | 313 | args[argc++] = rsync_path; |
c627d613 | 314 | |
9af87151 | 315 | if (blocking_io < 0) { |
90e22f4b WD |
316 | char *cp; |
317 | if ((cp = strrchr(cmd, '/')) != NULL) | |
318 | cp++; | |
319 | else | |
320 | cp = cmd; | |
321 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
322 | blocking_io = 1; | |
66b71163 | 323 | } |
e384bfbd | 324 | |
93689aa5 | 325 | server_options(args,&argc); |
e7a392c7 WD |
326 | |
327 | if (argc >= MAX_ARGS - 2) { | |
328 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
329 | exit_cleanup(RERR_SYNTAX); | |
330 | } | |
366345fe | 331 | } |
c627d613 | 332 | |
366345fe | 333 | args[argc++] = "."; |
76076c4b | 334 | |
d9c7edf6 | 335 | if (!daemon_over_rsh && path && *path) |
366345fe | 336 | args[argc++] = path; |
c627d613 | 337 | |
366345fe | 338 | args[argc] = NULL; |
c627d613 | 339 | |
366345fe | 340 | if (verbose > 3) { |
9486289c | 341 | rprintf(FINFO,"cmd="); |
e7a392c7 | 342 | for (i = 0; i < argc; i++) |
71903f60 | 343 | rprintf(FINFO, "%s ", safe_fname(args[i])); |
9486289c | 344 | rprintf(FINFO,"\n"); |
366345fe AT |
345 | } |
346 | ||
c0d8e84c WD |
347 | if (read_batch) { |
348 | int from_gen_pipe[2]; | |
349 | if (fd_pair(from_gen_pipe) < 0) { | |
350 | rsyserr(FERROR, errno, "pipe"); | |
351 | exit_cleanup(RERR_IPC); | |
352 | } | |
353 | batch_gen_fd = from_gen_pipe[0]; | |
354 | *f_out = from_gen_pipe[1]; | |
355 | *f_in = batch_fd; | |
356 | ret = -1; /* no child pid */ | |
357 | } else if (local_server) { | |
b1df18d7 WD |
358 | /* If the user didn't request --[no-]whole-file, force |
359 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 360 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 361 | whole_file = 1; |
25d34a5c | 362 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 363 | } else |
366345fe | 364 | ret = piped_child(args,f_in,f_out); |
c627d613 | 365 | |
3a69fad0 WD |
366 | if (dir) |
367 | free(dir); | |
82306bf6 | 368 | |
366345fe | 369 | return ret; |
c627d613 AT |
370 | |
371 | oom: | |
366345fe AT |
372 | out_of_memory("do_cmd"); |
373 | return 0; /* not reached */ | |
c627d613 AT |
374 | } |
375 | ||
376 | ||
c627d613 AT |
377 | static char *get_local_name(struct file_list *flist,char *name) |
378 | { | |
7a6421fa | 379 | STRUCT_STAT st; |
87cc45e1 | 380 | int e; |
c627d613 | 381 | |
c95da96a | 382 | if (verbose > 2) |
d9c7edf6 | 383 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
384 | flist->count, NS(name)); |
385 | ||
d9c7edf6 | 386 | if (!name) |
1f0610ef | 387 | return NULL; |
c95da96a | 388 | |
1ff5450d AT |
389 | if (do_stat(name,&st) == 0) { |
390 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 391 | if (!push_dir(name)) { |
982e05bb WD |
392 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
393 | full_fname(name)); | |
65417579 | 394 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
395 | } |
396 | return NULL; | |
397 | } | |
398 | if (flist->count > 1) { | |
399 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 400 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
401 | } |
402 | return name; | |
403 | } | |
404 | ||
87cc45e1 | 405 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
406 | return name; |
407 | ||
1ff5450d | 408 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 409 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 410 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
411 | } |
412 | if (verbose > 0) | |
71903f60 | 413 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
414 | |
415 | if (dry_run) { | |
416 | dry_run++; | |
417 | return NULL; | |
1ff5450d AT |
418 | } |
419 | ||
59187666 | 420 | if (!push_dir(name)) { |
982e05bb WD |
421 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
422 | full_fname(name)); | |
65417579 | 423 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
424 | } |
425 | ||
426 | return NULL; | |
c627d613 AT |
427 | } |
428 | ||
429 | ||
9486289c | 430 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 431 | { |
7a6421fa AT |
432 | int i; |
433 | struct file_list *flist; | |
434 | char *dir = argv[0]; | |
c627d613 | 435 | |
45e08edb WD |
436 | if (verbose > 2) { |
437 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
438 | (long)getpid()); | |
439 | } | |
d9c7edf6 | 440 | |
2adbcdc7 | 441 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
442 | rprintf(FERROR, "ERROR: module is write only\n"); |
443 | exit_cleanup(RERR_SYNTAX); | |
444 | return; | |
445 | } | |
bf26aa22 WD |
446 | if (am_daemon && lp_read_only(module_id) && remove_sent_files) { |
447 | rprintf(FERROR, | |
448 | "ERROR: --remove-sent-files cannot be used with a read-only module\n"); | |
449 | exit_cleanup(RERR_SYNTAX); | |
450 | return; | |
451 | } | |
7a92ded3 | 452 | |
59187666 | 453 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
454 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
455 | full_fname(dir)); | |
65417579 | 456 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
457 | } |
458 | argc--; | |
459 | argv++; | |
d9c7edf6 | 460 | |
7a6421fa AT |
461 | if (strcmp(dir,".")) { |
462 | int l = strlen(dir); | |
d9c7edf6 | 463 | if (strcmp(dir,"/") == 0) |
7a6421fa | 464 | l = 0; |
e7a392c7 | 465 | for (i = 0; i < argc; i++) |
7a6421fa AT |
466 | argv[i] += l+1; |
467 | } | |
c627d613 | 468 | |
48a1ff0d | 469 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 470 | argc = 1; |
7a6421fa AT |
471 | argv--; |
472 | argv[0] = "."; | |
473 | } | |
d9c7edf6 | 474 | |
7a6421fa | 475 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
476 | if (!flist || flist->count == 0) { |
477 | exit_cleanup(0); | |
478 | } | |
479 | ||
da3478b2 WD |
480 | io_start_buffering_in(); |
481 | io_start_buffering_out(); | |
482 | ||
7a6421fa | 483 | send_files(flist,f_out,f_in); |
f1e3656e | 484 | io_flush(FULL_FLUSH); |
7a6421fa | 485 | report(f_out); |
d04e9c51 | 486 | if (protocol_version >= 24) { |
d9c7edf6 | 487 | /* final goodbye message */ |
64c3523a WD |
488 | read_int(f_in); |
489 | } | |
f1e3656e | 490 | io_flush(FULL_FLUSH); |
7a6421fa | 491 | exit_cleanup(0); |
c627d613 AT |
492 | } |
493 | ||
494 | ||
dc5ddbcc AT |
495 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
496 | { | |
d186eb1a | 497 | int pid; |
e1f67417 | 498 | int status = 0; |
41cfde6b | 499 | int error_pipe[2], name_pipe[2]; |
06b96ffa WD |
500 | BOOL need_name_pipe = (basis_dir[0] || partial_dir || fuzzy_basis) |
501 | && !dry_run; | |
dc5ddbcc | 502 | |
bb6721dc WD |
503 | /* The receiving side mustn't obey this, or an existing symlink that |
504 | * points to an identical file won't be replaced by the referent. */ | |
505 | copy_links = 0; | |
506 | ||
d186eb1a AT |
507 | if (preserve_hard_links) |
508 | init_hard_links(flist); | |
dc5ddbcc | 509 | |
864146de WD |
510 | if (delete_before && !local_name && flist->count > 0) { |
511 | /* Moved here from recv_files() to prevent a race condition */ | |
512 | delete_files(flist); | |
6957ae33 AT |
513 | } |
514 | ||
41cfde6b WD |
515 | if (fd_pair(error_pipe) < 0 |
516 | || (need_name_pipe && fd_pair(name_pipe) < 0)) { | |
ab759cd2 | 517 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 518 | exit_cleanup(RERR_IPC); |
554e0a8d | 519 | } |
d9c7edf6 | 520 | |
f1e3656e | 521 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 522 | |
ba449e44 | 523 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 524 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
525 | exit_cleanup(RERR_IPC); |
526 | } | |
527 | ||
528 | if (pid == 0) { | |
554e0a8d | 529 | close(error_pipe[0]); |
41cfde6b WD |
530 | if (need_name_pipe) { |
531 | close(name_pipe[1]); | |
532 | set_blocking(name_pipe[0]); | |
533 | } else | |
534 | name_pipe[0] = -1; | |
3a69fad0 WD |
535 | if (f_in != f_out) |
536 | close(f_out); | |
e08c9610 | 537 | |
554e0a8d | 538 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 539 | close_multiplexing_out(); |
554e0a8d AT |
540 | |
541 | /* set place to send errors */ | |
f1e3656e | 542 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 543 | |
41cfde6b | 544 | recv_files(f_in, flist, local_name, name_pipe[0]); |
f1e3656e | 545 | io_flush(FULL_FLUSH); |
ba5e128d | 546 | report(f_in); |
e08c9610 | 547 | |
f1e3656e WD |
548 | send_msg(MSG_DONE, "", 0); |
549 | io_flush(FULL_FLUSH); | |
4a748188 | 550 | /* finally we go to sleep until our parent kills us |
9af87151 WD |
551 | * with a USR2 signal. We sleep for a short time as on |
552 | * some OSes a signal won't interrupt a sleep! */ | |
f1e3656e WD |
553 | while (1) |
554 | msleep(20); | |
d186eb1a | 555 | } |
dc5ddbcc | 556 | |
b695f242 | 557 | am_generator = 1; |
9eeb3b9c | 558 | close_multiplexing_in(); |
b9f592fb WD |
559 | if (write_batch) |
560 | stop_write_batch(); | |
b695f242 | 561 | |
554e0a8d | 562 | close(error_pipe[1]); |
41cfde6b WD |
563 | if (need_name_pipe) { |
564 | close(name_pipe[0]); | |
565 | set_nonblocking(name_pipe[1]); | |
566 | } else | |
567 | name_pipe[1] = -1; | |
3a69fad0 WD |
568 | if (f_in != f_out) |
569 | close(f_in); | |
e1b3d5c4 | 570 | |
da3478b2 | 571 | io_start_buffering_out(); |
b3e10ed7 | 572 | |
f1e3656e | 573 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 574 | |
41cfde6b | 575 | generate_files(f_out, flist, local_name, name_pipe[1]); |
8d9dc9f9 | 576 | |
e5fbaa71 | 577 | report(-1); |
f1e3656e | 578 | io_flush(FULL_FLUSH); |
d04e9c51 | 579 | if (protocol_version >= 24) { |
8ada7518 AT |
580 | /* send a final goodbye message */ |
581 | write_int(f_out, -1); | |
582 | } | |
f1e3656e | 583 | io_flush(FULL_FLUSH); |
8ada7518 | 584 | |
f1e3656e | 585 | set_msg_fd_in(-1); |
089a2435 | 586 | kill(pid, SIGUSR2); |
d79d1c69 | 587 | wait_process(pid, &status); |
d186eb1a | 588 | return status; |
dc5ddbcc AT |
589 | } |
590 | ||
c627d613 | 591 | |
9486289c | 592 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 593 | { |
7a6421fa AT |
594 | int status; |
595 | struct file_list *flist; | |
6c2e5b56 | 596 | char *local_name = NULL; |
7a6421fa | 597 | char *dir = NULL; |
07bff66f WD |
598 | int save_verbose = verbose; |
599 | ||
600 | if (filesfrom_fd >= 0) { | |
601 | /* We can't mix messages with files-from data on the socket, | |
602 | * so temporarily turn off verbose messages. */ | |
603 | verbose = 0; | |
604 | } | |
f0fca04e | 605 | |
45e08edb WD |
606 | if (verbose > 2) { |
607 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
608 | argc, (long)getpid()); | |
609 | } | |
09b7f5db | 610 | |
2adbcdc7 | 611 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
612 | rprintf(FERROR,"ERROR: module is read only\n"); |
613 | exit_cleanup(RERR_SYNTAX); | |
614 | return; | |
615 | } | |
616 | ||
d9c7edf6 | 617 | |
7a6421fa AT |
618 | if (argc > 0) { |
619 | dir = argv[0]; | |
620 | argc--; | |
621 | argv++; | |
59187666 | 622 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
623 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
624 | full_fname(dir)); | |
65417579 | 625 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 626 | } |
7a6421fa | 627 | } |
c627d613 | 628 | |
da3478b2 | 629 | io_start_buffering_in(); |
57dee64e | 630 | recv_filter_list(f_in); |
c627d613 | 631 | |
7c2a9e76 | 632 | if (filesfrom_fd >= 0) { |
07bff66f WD |
633 | /* We need to send the files-from names to the sender at the |
634 | * same time that we receive the file-list from them, so we | |
635 | * need the IO routines to automatically write out the names | |
636 | * onto our f_out socket as we read the file-list. This | |
637 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
638 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
639 | filesfrom_fd = -1; | |
640 | } | |
641 | ||
b9f592fb | 642 | flist = recv_file_list(f_in); |
07bff66f | 643 | verbose = save_verbose; |
4c36a13e AT |
644 | if (!flist) { |
645 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 646 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 647 | } |
d9c7edf6 WD |
648 | |
649 | if (argc > 0) { | |
7a6421fa AT |
650 | if (strcmp(dir,".")) { |
651 | argv[0] += strlen(dir); | |
3a69fad0 WD |
652 | if (argv[0][0] == '/') |
653 | argv[0]++; | |
7a6421fa AT |
654 | } |
655 | local_name = get_local_name(flist,argv[0]); | |
656 | } | |
c627d613 | 657 | |
7a6421fa AT |
658 | status = do_recv(f_in,f_out,flist,local_name); |
659 | exit_cleanup(status); | |
c627d613 AT |
660 | } |
661 | ||
662 | ||
734a94a2 | 663 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
664 | { |
665 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 666 | return 0; |
25d34a5c MP |
667 | } |
668 | ||
669 | ||
9486289c | 670 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 671 | { |
f0359dd0 AT |
672 | set_nonblocking(f_in); |
673 | set_nonblocking(f_out); | |
674 | ||
da3478b2 WD |
675 | io_set_sock_fds(f_in, f_out); |
676 | setup_protocol(f_out, f_in); | |
677 | ||
d04e9c51 | 678 | if (protocol_version >= 23) |
da3478b2 | 679 | io_start_multiplex_out(); |
7a6421fa | 680 | |
7a6421fa | 681 | if (am_sender) { |
83926d3c | 682 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
bf26aa22 WD |
683 | if (need_messages_from_generator) |
684 | io_start_multiplex_in(); | |
9b3318b0 | 685 | |
7842418b | 686 | recv_filter_list(f_in); |
7a6421fa AT |
687 | do_server_sender(f_in, f_out, argc, argv); |
688 | } else { | |
689 | do_server_recv(f_in, f_out, argc, argv); | |
690 | } | |
691 | exit_cleanup(0); | |
366345fe AT |
692 | } |
693 | ||
0ba48136 MP |
694 | |
695 | /* | |
696 | * This is called once the connection has been negotiated. It is used | |
697 | * for rsyncd, remote-shell, and local connections. | |
698 | */ | |
19b27a48 | 699 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 700 | { |
088aac85 | 701 | struct file_list *flist = NULL; |
9486289c AT |
702 | int status = 0, status2 = 0; |
703 | char *local_name = NULL; | |
19b27a48 AT |
704 | |
705 | cleanup_child_pid = pid; | |
67a28eb2 | 706 | if (!read_batch) { |
b9f592fb WD |
707 | set_nonblocking(f_in); |
708 | set_nonblocking(f_out); | |
709 | } | |
f0359dd0 | 710 | |
da3478b2 | 711 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
712 | setup_protocol(f_out,f_in); |
713 | ||
b9f592fb | 714 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 715 | io_start_multiplex_in(); |
d9c7edf6 | 716 | |
18882701 WD |
717 | /* We set our stderr file handle to blocking because ssh might have |
718 | * set it to non-blocking. This can be particularly troublesome if | |
719 | * stderr is a clone of stdout, because ssh would have set our stdout | |
720 | * to non-blocking at the same time (which can easily cause us to lose | |
721 | * output from our print statements). This kluge shouldn't cause ssh | |
722 | * any problems for how we use it. Note also that we delayed setting | |
723 | * this until after the above protocol setup so that we know for sure | |
724 | * that ssh is done twiddling its file descriptors. */ | |
725 | set_blocking(STDERR_FILENO); | |
726 | ||
9486289c | 727 | if (am_sender) { |
83926d3c | 728 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 729 | io_start_buffering_out(); |
a0a33ee5 WD |
730 | if (!remote_filesfrom_file) |
731 | set_msg_fd_in(f_in); | |
57dee64e | 732 | send_filter_list(f_out); |
7c2a9e76 WD |
733 | if (remote_filesfrom_file) |
734 | filesfrom_fd = f_in; | |
b9f592fb WD |
735 | |
736 | if (write_batch) | |
737 | start_write_batch(f_out); | |
64c3523a | 738 | if (!read_batch) /* don't write to pipe */ |
d9c7edf6 | 739 | flist = send_file_list(f_out,argc,argv); |
a0a33ee5 | 740 | set_msg_fd_in(-1); |
d9c7edf6 | 741 | if (verbose > 3) |
9486289c | 742 | rprintf(FINFO,"file list sent\n"); |
e1b3d5c4 | 743 | |
f1e3656e | 744 | io_flush(NORMAL_FLUSH); |
9486289c | 745 | send_files(flist,f_out,f_in); |
f1e3656e | 746 | io_flush(FULL_FLUSH); |
d04e9c51 | 747 | if (protocol_version >= 24) { |
d9c7edf6 | 748 | /* final goodbye message */ |
6c65e146 AT |
749 | read_int(f_in); |
750 | } | |
9486289c AT |
751 | if (pid != -1) { |
752 | if (verbose > 3) | |
08a740ff | 753 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 754 | io_flush(FULL_FLUSH); |
d79d1c69 | 755 | wait_process(pid, &status); |
9486289c | 756 | } |
3d382777 | 757 | report(-1); |
f1e3656e | 758 | io_flush(FULL_FLUSH); |
9486289c AT |
759 | exit_cleanup(status); |
760 | } | |
f7632fc6 | 761 | |
bf26aa22 WD |
762 | if (need_messages_from_generator && !read_batch) |
763 | io_start_multiplex_out(); | |
764 | ||
48a1ff0d WD |
765 | if (argc == 0) |
766 | list_only |= 1; | |
d9c7edf6 | 767 | |
57dee64e | 768 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 769 | |
7c2a9e76 WD |
770 | if (filesfrom_fd >= 0) { |
771 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
772 | filesfrom_fd = -1; | |
773 | } | |
774 | ||
b9f592fb WD |
775 | if (write_batch) |
776 | start_write_batch(f_in); | |
9486289c AT |
777 | flist = recv_file_list(f_in); |
778 | if (!flist || flist->count == 0) { | |
796d484b | 779 | rprintf(FINFO, "client: nothing to do: " |
d9c7edf6 WD |
780 | "perhaps you need to specify some filenames or " |
781 | "the --recursive option?\n"); | |
9486289c AT |
782 | exit_cleanup(0); |
783 | } | |
d9c7edf6 | 784 | |
9486289c | 785 | local_name = get_local_name(flist,argv[0]); |
d9c7edf6 | 786 | |
9486289c | 787 | status2 = do_recv(f_in,f_out,flist,local_name); |
d9c7edf6 | 788 | |
9486289c | 789 | if (pid != -1) { |
8d9dc9f9 | 790 | if (verbose > 3) |
08a740ff | 791 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 792 | io_flush(FULL_FLUSH); |
d79d1c69 | 793 | wait_process(pid, &status); |
9486289c | 794 | } |
d9c7edf6 | 795 | |
ff81e809 | 796 | return MAX(status, status2); |
9486289c AT |
797 | } |
798 | ||
7169bb4a MP |
799 | static int copy_argv (char *argv[]) |
800 | { | |
801 | int i; | |
802 | ||
803 | for (i = 0; argv[i]; i++) { | |
804 | if (!(argv[i] = strdup(argv[i]))) { | |
805 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
806 | __FILE__, __LINE__); | |
807 | return RERR_MALLOC; | |
808 | } | |
809 | } | |
810 | ||
811 | return 0; | |
812 | } | |
813 | ||
814 | ||
c1a04ecb | 815 | /** |
0ba48136 MP |
816 | * Start a client for either type of remote connection. Work out |
817 | * whether the arguments request a remote shell or rsyncd connection, | |
818 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
819 | * |
820 | * Calls either start_socket_client (for sockets) or do_cmd and | |
821 | * client_run (for ssh). | |
c1a04ecb | 822 | **/ |
fc8a6b97 | 823 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
824 | { |
825 | char *p; | |
826 | char *shell_machine = NULL; | |
827 | char *shell_path = NULL; | |
828 | char *shell_user = NULL; | |
19b27a48 AT |
829 | int ret; |
830 | pid_t pid; | |
5d6bcd44 | 831 | int f_in,f_out; |
7169bb4a MP |
832 | int rc; |
833 | ||
834 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 835 | * command line. */ |
75aeac44 | 836 | if ((rc = copy_argv(argv))) |
7169bb4a | 837 | return rc; |
5d6bcd44 | 838 | |
75aeac44 | 839 | /* rsync:// always uses rsync server over direct socket connection */ |
b9f592fb WD |
840 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0 |
841 | && !read_batch) { | |
f7632fc6 AT |
842 | char *host, *path; |
843 | ||
7169bb4a | 844 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
845 | p = strchr(host,'/'); |
846 | if (p) { | |
50b31539 | 847 | *p = '\0'; |
f7632fc6 | 848 | path = p+1; |
50b31539 | 849 | } else |
a125c82a | 850 | path = ""; |
50b31539 WD |
851 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
852 | host++; | |
853 | *p++ = '\0'; | |
854 | if (*p != ':') | |
855 | p = NULL; | |
856 | } else | |
857 | p = strchr(host, ':'); | |
2acf81eb DD |
858 | if (p) { |
859 | rsync_port = atoi(p+1); | |
50b31539 | 860 | *p = '\0'; |
cf510ad2 | 861 | } |
f7632fc6 AT |
862 | return start_socket_client(host, path, argc-1, argv+1); |
863 | } | |
864 | ||
d16c245f | 865 | if (!read_batch) { /* for read_batch, NO source is specified */ |
a125c82a | 866 | p = find_colon(argv[0]); |
d16c245f | 867 | if (p) { /* source is remote */ |
7c2a9e76 WD |
868 | if (remote_filesfrom_file |
869 | && remote_filesfrom_file != files_from + 1 | |
870 | && strncmp(files_from, argv[0], p-argv[0]+1) != 0) { | |
871 | rprintf(FERROR, | |
50b31539 | 872 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
873 | exit_cleanup(RERR_SYNTAX); |
874 | } | |
d9c7edf6 WD |
875 | if (p[1] == ':') { /* double colon */ |
876 | *p = 0; | |
877 | if (!shell_cmd) { | |
878 | return start_socket_client(argv[0], p+2, | |
879 | argc-1, argv+1); | |
880 | } | |
881 | p++; | |
882 | daemon_over_rsh = 1; | |
75aeac44 | 883 | } |
3591c066 | 884 | |
d16c245f | 885 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
886 | usage(FERROR); |
887 | exit_cleanup(RERR_SYNTAX); | |
888 | } | |
a125c82a | 889 | |
d9c7edf6 WD |
890 | am_sender = 0; |
891 | *p = 0; | |
892 | shell_machine = argv[0]; | |
893 | shell_path = p+1; | |
d9c7edf6 | 894 | argv++; |
d16c245f | 895 | } else { /* source is local */ |
d9c7edf6 WD |
896 | am_sender = 1; |
897 | ||
898 | /* rsync:// destination uses rsync server over direct socket */ | |
899 | if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) { | |
900 | char *host, *path; | |
901 | ||
902 | host = argv[argc-1] + strlen(URL_PREFIX); | |
903 | p = strchr(host,'/'); | |
904 | if (p) { | |
50b31539 | 905 | *p = '\0'; |
d9c7edf6 | 906 | path = p+1; |
50b31539 | 907 | } else |
d9c7edf6 | 908 | path = ""; |
50b31539 WD |
909 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
910 | host++; | |
911 | *p++ = '\0'; | |
912 | if (*p != ':') | |
913 | p = NULL; | |
914 | } else | |
915 | p = strchr(host, ':'); | |
d9c7edf6 WD |
916 | if (p) { |
917 | rsync_port = atoi(p+1); | |
50b31539 | 918 | *p = '\0'; |
cf510ad2 | 919 | } |
d9c7edf6 | 920 | return start_socket_client(host, path, argc-1, argv); |
a125c82a | 921 | } |
d9c7edf6 | 922 | |
d16c245f | 923 | p = find_colon(argv[argc-1]); /* look in dest arg */ |
7c2a9e76 WD |
924 | if (p && remote_filesfrom_file |
925 | && remote_filesfrom_file != files_from + 1 | |
926 | && strncmp(files_from, argv[argc-1], p-argv[argc-1]+1) != 0) { | |
927 | rprintf(FERROR, | |
50b31539 | 928 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
929 | exit_cleanup(RERR_SYNTAX); |
930 | } | |
d16c245f | 931 | if (!p) { /* no colon found, so src & dest are local */ |
d9c7edf6 | 932 | local_server = 1; |
7c2a9e76 WD |
933 | if (remote_filesfrom_file) { |
934 | rprintf(FERROR, | |
50b31539 | 935 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
936 | exit_cleanup(RERR_SYNTAX); |
937 | } | |
d9c7edf6 | 938 | } else if (p[1] == ':') { /* double colon */ |
a125c82a | 939 | *p = 0; |
d9c7edf6 WD |
940 | if (!shell_cmd) { |
941 | return start_socket_client(argv[argc-1], p+2, | |
942 | argc-1, argv); | |
943 | } | |
944 | p++; | |
945 | daemon_over_rsh = 1; | |
a125c82a | 946 | } |
a125c82a | 947 | |
d9c7edf6 WD |
948 | if (argc < 2) { |
949 | usage(FERROR); | |
950 | exit_cleanup(RERR_SYNTAX); | |
75aeac44 | 951 | } |
3591c066 | 952 | |
d9c7edf6 WD |
953 | if (local_server) { |
954 | shell_machine = NULL; | |
955 | shell_path = argv[argc-1]; | |
956 | } else { | |
957 | *p = 0; | |
958 | shell_machine = argv[argc-1]; | |
959 | shell_path = p+1; | |
960 | } | |
5d6bcd44 | 961 | } |
d16c245f WD |
962 | argc--; |
963 | } else { /* read_batch */ | |
d9c7edf6 WD |
964 | local_server = 1; |
965 | shell_path = argv[argc-1]; | |
b9f592fb WD |
966 | if (find_colon(shell_path)) { |
967 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); | |
968 | exit_cleanup(RERR_SYNTAX); | |
969 | } | |
6902ed17 MP |
970 | } |
971 | ||
5d6bcd44 | 972 | if (shell_machine) { |
6fc048f4 | 973 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
974 | if (p) { |
975 | *p = 0; | |
976 | shell_user = shell_machine; | |
977 | shell_machine = p+1; | |
978 | } | |
979 | } | |
980 | ||
981 | if (verbose > 3) { | |
9486289c | 982 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
983 | shell_cmd ? safe_fname(shell_cmd) : "", |
984 | shell_machine ? safe_fname(shell_machine) : "", | |
985 | shell_user ? safe_fname(shell_user) : "", | |
986 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 987 | } |
d9c7edf6 | 988 | |
d16c245f | 989 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 990 | if (!am_sender && argc > 1) { |
5d6bcd44 | 991 | usage(FERROR); |
65417579 | 992 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 993 | } |
27e3e9c9 | 994 | |
d16c245f | 995 | /* ... or no dest at all */ |
48a1ff0d WD |
996 | if (!am_sender && argc == 0) |
997 | list_only |= 1; | |
d9c7edf6 | 998 | |
75aeac44 WD |
999 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
1000 | &f_in,&f_out); | |
1001 | ||
1002 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 1003 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
1004 | if (daemon_over_rsh) { |
1005 | int tmpret; | |
1006 | tmpret = start_inband_exchange(shell_user, shell_path, | |
1007 | f_in, f_out, argc); | |
1008 | if (tmpret < 0) | |
1009 | return tmpret; | |
1010 | } | |
1011 | ||
fc8a6b97 AT |
1012 | ret = client_run(f_in, f_out, pid, argc, argv); |
1013 | ||
1014 | fflush(stdout); | |
1015 | fflush(stderr); | |
1016 | ||
1017 | return ret; | |
5d6bcd44 AT |
1018 | } |
1019 | ||
366345fe | 1020 | |
067669da WD |
1021 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1022 | { | |
65417579 | 1023 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
1024 | } |
1025 | ||
067669da WD |
1026 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1027 | { | |
19b27a48 | 1028 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
1029 | _exit(0); |
1030 | } | |
1031 | ||
067669da WD |
1032 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1033 | { | |
029c1713 | 1034 | #ifdef WNOHANG |
ee7118a8 DD |
1035 | int cnt, status; |
1036 | pid_t pid; | |
1037 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1038 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1039 | * out we're instead saving the child exit statuses for later use. |
1040 | * The waitpid() loop presumably eliminates all possibility of leaving | |
1041 | * zombie children, maybe that's why he did it. | |
1042 | */ | |
1043 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
9af87151 WD |
1044 | /* save the child's exit status */ |
1045 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1046 | if (pid_stat_table[cnt].pid == 0) { | |
1047 | pid_stat_table[cnt].pid = pid; | |
1048 | pid_stat_table[cnt].status = status; | |
1049 | break; | |
1050 | } | |
1051 | } | |
ee7118a8 | 1052 | } |
029c1713 | 1053 | #endif |
19b27a48 AT |
1054 | } |
1055 | ||
c0531332 MP |
1056 | |
1057 | /** | |
1058 | * This routine catches signals and tries to send them to gdb. | |
1059 | * | |
1060 | * Because it's called from inside a signal handler it ought not to | |
1061 | * use too many library routines. | |
1062 | * | |
1063 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1064 | * debugging without easy access to X. Perhaps use an environment | |
1065 | * variable, or just call a script? | |
1066 | * | |
1067 | * @todo The /proc/ magic probably only works on Linux (and | |
1068 | * Solaris?) Can we be more portable? | |
1069 | **/ | |
1070 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1071 | const char *get_panic_action(void) |
1072 | { | |
1073 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1074 | ||
1075 | if (cmd_fmt) | |
1076 | return cmd_fmt; | |
1077 | else | |
1078 | return "xterm -display :0 -T Panic -n Panic " | |
1079 | "-e gdb /proc/%d/exe %d"; | |
1080 | } | |
1081 | ||
1082 | ||
9fb3f7a9 MP |
1083 | /** |
1084 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1085 | * | |
1086 | * This signal handler is only installed if we were configured with | |
1087 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1088 | * should just look at the environment variable, but I'm a bit leery | |
1089 | * of a signal sending us into a busy loop. | |
1090 | **/ | |
067669da | 1091 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1092 | { |
1093 | char cmd_buf[300]; | |
1094 | int ret; | |
4fdc39dd MP |
1095 | |
1096 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1097 | getpid(), getpid()); |
1098 | ||
1099 | /* Unless we failed to execute gdb, we allow the process to | |
1100 | * continue. I'm not sure if that's right. */ | |
1101 | ret = system(cmd_buf); | |
1102 | if (ret) | |
1103 | _exit(ret); | |
1104 | } | |
1105 | #endif | |
1106 | ||
1107 | ||
5d6bcd44 | 1108 | int main(int argc,char *argv[]) |
d9c7edf6 | 1109 | { |
ff81e809 | 1110 | int ret; |
66a9dc96 WD |
1111 | int orig_argc = argc; |
1112 | char **orig_argv = argv; | |
5d6bcd44 | 1113 | |
7a6421fa | 1114 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1115 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1116 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1117 | #ifdef MAINTAINER_MODE |
1118 | signal(SIGSEGV, rsync_panic_handler); | |
1119 | signal(SIGFPE, rsync_panic_handler); | |
1120 | signal(SIGABRT, rsync_panic_handler); | |
1121 | signal(SIGBUS, rsync_panic_handler); | |
1122 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1123 | |
7a6421fa | 1124 | starttime = time(NULL); |
6fe05820 | 1125 | am_root = (MY_UID() == 0); |
c627d613 | 1126 | |
a800434a AT |
1127 | memset(&stats, 0, sizeof(stats)); |
1128 | ||
df5e03da AT |
1129 | if (argc < 2) { |
1130 | usage(FERROR); | |
65417579 | 1131 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1132 | } |
1133 | ||
7a6421fa | 1134 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1135 | * carried across */ |
7a6421fa | 1136 | orig_umask = (int)umask(0); |
5d6bcd44 | 1137 | |
50135767 | 1138 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1139 | /* FIXME: We ought to call the same error-handling |
1140 | * code here, rather than relying on getopt. */ | |
50135767 | 1141 | option_error(); |
65417579 | 1142 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1143 | } |
5d6bcd44 | 1144 | |
7a6421fa | 1145 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1146 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1147 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1148 | |
34758d5c MP |
1149 | /* Ignore SIGPIPE; we consistently check error codes and will |
1150 | * see the EPIPE. */ | |
1151 | signal(SIGPIPE, SIG_IGN); | |
1152 | ||
c226b7c2 | 1153 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1154 | * (implemented by forking "pwd" and reading its output) doesn't |
1155 | * work when there are other child processes. Also, on all systems | |
1156 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1157 | push_dir(NULL); |
c226b7c2 | 1158 | |
44e9e221 WD |
1159 | init_flist(); |
1160 | ||
b9f592fb WD |
1161 | if (write_batch || read_batch) { |
1162 | if (write_batch) | |
66a9dc96 | 1163 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1164 | |
dbbab0c4 WD |
1165 | if (read_batch && strcmp(batch_name, "-") == 0) |
1166 | batch_fd = STDIN_FILENO; | |
1167 | else { | |
1168 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1169 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1170 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1171 | } |
b9f592fb WD |
1172 | if (batch_fd < 0) { |
1173 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1174 | full_fname(batch_name)); |
b9f592fb WD |
1175 | exit_cleanup(RERR_FILEIO); |
1176 | } | |
9459290a WD |
1177 | if (read_batch) |
1178 | read_stream_flags(batch_fd); | |
6902ed17 MP |
1179 | } |
1180 | ||
75aeac44 | 1181 | if (am_daemon && !am_server) |
7a6421fa | 1182 | return daemon_main(); |
f0fca04e | 1183 | |
08ac228f AT |
1184 | if (argc < 1) { |
1185 | usage(FERROR); | |
65417579 | 1186 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1187 | } |
1188 | ||
7a6421fa | 1189 | if (am_server) { |
f0359dd0 AT |
1190 | set_nonblocking(STDIN_FILENO); |
1191 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1192 | if (am_daemon) |
1193 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1194 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1195 | } | |
c627d613 | 1196 | |
ff81e809 | 1197 | ret = start_client(argc, argv); |
d9c7edf6 | 1198 | if (ret == -1) |
9098bbf3 | 1199 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1200 | else |
9098bbf3 MP |
1201 | exit_cleanup(ret); |
1202 | ||
0f5a04e3 | 1203 | return ret; |
c627d613 | 1204 | } |