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 | |
b35d0d8e | 26 | extern struct stats stats; |
32eda096 | 27 | extern int am_root; |
d9c7edf6 WD |
28 | extern int am_server; |
29 | extern int am_sender; | |
b695f242 | 30 | extern int am_generator; |
d9c7edf6 | 31 | extern int am_daemon; |
7a6421fa | 32 | extern int verbose; |
32eda096 | 33 | extern int blocking_io; |
48a1ff0d | 34 | extern int delete_before; |
32eda096 WD |
35 | extern int daemon_over_rsh; |
36 | extern int do_stats; | |
37 | extern int dry_run; | |
38 | extern int list_only; | |
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; | |
b1df18d7 | 50 | extern int whole_file; |
32eda096 WD |
51 | extern int read_batch; |
52 | extern int write_batch; | |
b9f592fb | 53 | extern int batch_fd; |
c0d8e84c | 54 | extern int batch_gen_fd; |
32eda096 WD |
55 | extern int filesfrom_fd; |
56 | extern pid_t cleanup_child_pid; | |
57 | extern char *files_from; | |
58 | extern char *remote_filesfrom_file; | |
7162c65d | 59 | extern char *partial_dir; |
c3fad2e2 | 60 | extern char *basis_dir[]; |
32eda096 WD |
61 | extern char *rsync_path; |
62 | extern char *shell_cmd; | |
9b3318b0 | 63 | extern char *batch_name; |
57dee64e WD |
64 | |
65 | int local_server = 0; | |
c627d613 | 66 | |
91c5833b WD |
67 | /* There's probably never more than at most 2 outstanding child processes, |
68 | * but set it higher, just in case. */ | |
ee7118a8 DD |
69 | #define MAXCHILDPROCS 5 |
70 | ||
71 | struct pid_status { | |
72 | pid_t pid; | |
73 | int status; | |
74 | } pid_stat_table[MAXCHILDPROCS]; | |
75 | ||
e5a2b854 | 76 | static void show_malloc_stats(void); |
82980a23 AT |
77 | |
78 | /**************************************************************************** | |
79 | wait for a process to exit, calling io_flush while waiting | |
80 | ****************************************************************************/ | |
81 | void wait_process(pid_t pid, int *status) | |
82 | { | |
ee7118a8 DD |
83 | pid_t waited_pid; |
84 | int cnt; | |
85 | ||
86 | while ((waited_pid = waitpid(pid, status, WNOHANG)) == 0) { | |
a24c6870 | 87 | msleep(20); |
f1e3656e | 88 | io_flush(FULL_FLUSH); |
82980a23 | 89 | } |
d9c7edf6 | 90 | |
6fb812f7 | 91 | if (waited_pid == -1 && errno == ECHILD) { |
ee7118a8 DD |
92 | /* status of requested child no longer available. |
93 | * check to see if it was processed by the sigchld_handler. | |
94 | */ | |
95 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
96 | if (pid == pid_stat_table[cnt].pid) { | |
97 | *status = pid_stat_table[cnt].status; | |
98 | pid_stat_table[cnt].pid = 0; | |
99 | break; | |
100 | } | |
101 | } | |
102 | } | |
103 | ||
d9c7edf6 WD |
104 | /* TODO: If the child exited on a signal, then log an |
105 | * appropriate error message. Perhaps we should also accept a | |
106 | * message describing the purpose of the child. Also indicate | |
107 | * this to the caller so that thhey know something went | |
108 | * wrong. */ | |
82980a23 AT |
109 | *status = WEXITSTATUS(*status); |
110 | } | |
111 | ||
b9f592fb WD |
112 | /* This function gets called from all 3 processes. We want the client side |
113 | * to actually output the text, but the sender is the only process that has | |
114 | * all the stats we need. So, if we're a client sender, we do the report. | |
115 | * If we're a server sender, we write the stats on the supplied fd. If | |
116 | * we're the client receiver we read the stats from the supplied fd and do | |
117 | * the report. All processes might also generate a set of debug stats, if | |
118 | * the verbose level is high enough (this is the only thing that the | |
119 | * generator process and the server receiver ever do here). */ | |
c627d613 AT |
120 | static void report(int f) |
121 | { | |
b9f592fb WD |
122 | /* Cache two stats because the read/write code can change it. */ |
123 | int64 total_read = stats.total_read; | |
124 | int64 total_written = stats.total_written; | |
7a6421fa | 125 | time_t t = time(NULL); |
7a6421fa | 126 | |
7bb7058e | 127 | if (do_stats && verbose > 1) { |
5c15e29f | 128 | /* These come out from every process */ |
7bb7058e | 129 | show_malloc_stats(); |
86943126 | 130 | show_flist_stats(); |
5c15e29f MP |
131 | } |
132 | ||
e5fbaa71 S |
133 | if (am_generator) |
134 | return; | |
135 | ||
248fbb8c | 136 | if (am_daemon) { |
a9766ef1 | 137 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
138 | if (f == -1 || !am_sender) |
139 | return; | |
248fbb8c AT |
140 | } |
141 | ||
e19452a9 | 142 | if (am_server) { |
3e491682 | 143 | if (am_sender) { |
b9f592fb WD |
144 | write_longint(f, total_read); |
145 | write_longint(f, total_written); | |
146 | write_longint(f, stats.total_size); | |
f0f7e760 WD |
147 | if (protocol_version >= 29) { |
148 | write_longint(f, stats.flist_buildtime); | |
149 | write_longint(f, stats.flist_xfertime); | |
150 | } | |
e19452a9 | 151 | } |
7a6421fa AT |
152 | return; |
153 | } | |
e19452a9 DD |
154 | |
155 | /* this is the client */ | |
d9c7edf6 | 156 | |
3e491682 | 157 | if (!am_sender) { |
58c5c245 WD |
158 | /* Read the first two in opposite order because the meaning of |
159 | * read/write swaps when switching from sender to receiver. */ | |
b9f592fb WD |
160 | total_written = read_longint(f); |
161 | total_read = read_longint(f); | |
a800434a | 162 | stats.total_size = read_longint(f); |
f0f7e760 WD |
163 | if (protocol_version >= 29) { |
164 | stats.flist_buildtime = read_longint(f); | |
165 | stats.flist_xfertime = read_longint(f); | |
166 | } | |
b9f592fb WD |
167 | } else if (write_batch) { |
168 | /* The --read-batch process is going to be a client | |
169 | * receiver, so we need to give it the stats. */ | |
170 | write_longint(batch_fd, total_read); | |
171 | write_longint(batch_fd, total_written); | |
172 | write_longint(batch_fd, stats.total_size); | |
f0f7e760 WD |
173 | if (protocol_version >= 29) { |
174 | write_longint(batch_fd, stats.flist_buildtime); | |
175 | write_longint(batch_fd, stats.flist_xfertime); | |
176 | } | |
a800434a AT |
177 | } |
178 | ||
179 | if (do_stats) { | |
1f658d42 | 180 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
181 | rprintf(FINFO,"Number of files transferred: %d\n", |
182 | stats.num_transferred_files); | |
183 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
184 | (double)stats.total_size); | |
185 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
186 | (double)stats.total_transferred_size); | |
187 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
188 | (double)stats.literal_data); | |
189 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
190 | (double)stats.matched_data); | |
1f658d42 | 191 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
f0f7e760 WD |
192 | if (stats.flist_buildtime) { |
193 | rprintf(FINFO, | |
194 | "File list generation time: %.3f seconds\n", | |
195 | (double)stats.flist_buildtime / 1000); | |
196 | rprintf(FINFO, | |
197 | "File list transfer time: %.3f seconds\n", | |
198 | (double)stats.flist_xfertime / 1000); | |
199 | } | |
4de2a174 | 200 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 201 | (double)total_written); |
4de2a174 | 202 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 203 | (double)total_read); |
7a6421fa | 204 | } |
d9c7edf6 | 205 | |
e19452a9 | 206 | if (verbose || do_stats) { |
b9f592fb | 207 | rprintf(FINFO, |
4de2a174 | 208 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb WD |
209 | (double)total_written, (double)total_read, |
210 | (total_written + total_read)/(0.5 + (t - starttime))); | |
211 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", | |
d9c7edf6 | 212 | (double)stats.total_size, |
b9f592fb | 213 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 214 | } |
fc8a6b97 AT |
215 | |
216 | fflush(stdout); | |
217 | fflush(stderr); | |
c627d613 AT |
218 | } |
219 | ||
220 | ||
e5a2b854 MP |
221 | /** |
222 | * If our C library can get malloc statistics, then show them to FINFO | |
223 | **/ | |
224 | static void show_malloc_stats(void) | |
225 | { | |
4f5b0756 | 226 | #ifdef HAVE_MALLINFO |
e5a2b854 MP |
227 | struct mallinfo mi; |
228 | ||
229 | mi = mallinfo(); | |
230 | ||
ce672562 | 231 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
f846a9bf WD |
232 | getpid(), am_server ? "server " : "", |
233 | am_daemon ? "daemon " : "", who_am_i()); | |
234 | rprintf(FINFO, " arena: %10ld (bytes from sbrk)\n", | |
235 | (long)mi.arena); | |
236 | rprintf(FINFO, " ordblks: %10ld (chunks not in use)\n", | |
237 | (long)mi.ordblks); | |
238 | rprintf(FINFO, " smblks: %10ld\n", | |
239 | (long)mi.smblks); | |
240 | rprintf(FINFO, " hblks: %10ld (chunks from mmap)\n", | |
241 | (long)mi.hblks); | |
242 | rprintf(FINFO, " hblkhd: %10ld (bytes from mmap)\n", | |
243 | (long)mi.hblkhd); | |
244 | rprintf(FINFO, " allmem: %10ld (bytes from sbrk + mmap)\n", | |
245 | (long)mi.arena + mi.hblkhd); | |
246 | rprintf(FINFO, " usmblks: %10ld\n", | |
247 | (long)mi.usmblks); | |
248 | rprintf(FINFO, " fsmblks: %10ld\n", | |
249 | (long)mi.fsmblks); | |
250 | rprintf(FINFO, " uordblks: %10ld (bytes used)\n", | |
251 | (long)mi.uordblks); | |
252 | rprintf(FINFO, " fordblks: %10ld (bytes free)\n", | |
253 | (long)mi.fordblks); | |
254 | rprintf(FINFO, " keepcost: %10ld (bytes in releasable chunk)\n", | |
255 | (long)mi.keepcost); | |
e5a2b854 MP |
256 | #endif /* HAVE_MALLINFO */ |
257 | } | |
258 | ||
259 | ||
0882faa2 | 260 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
261 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
262 | int *f_in, int *f_out) | |
c627d613 | 263 | { |
6c2e5b56 | 264 | int i, argc = 0; |
887e553f | 265 | char *args[MAX_ARGS]; |
19b27a48 | 266 | pid_t ret; |
6c2e5b56 | 267 | char *tok, *dir = NULL; |
bb4aa89c | 268 | int dash_l_set = 0; |
366345fe | 269 | |
088aac85 | 270 | if (!read_batch && !local_server) { |
9af87151 | 271 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 272 | if (!cmd) |
9af87151 | 273 | cmd = rsh_env; |
366345fe AT |
274 | if (!cmd) |
275 | cmd = RSYNC_RSH; | |
276 | cmd = strdup(cmd); | |
d9c7edf6 | 277 | if (!cmd) |
366345fe AT |
278 | goto oom; |
279 | ||
887e553f | 280 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 WD |
281 | /* Comparison leaves rooms for server_options(). */ |
282 | if (argc >= MAX_ARGS - 100) { | |
283 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
887e553f WD |
284 | exit_cleanup(RERR_SYNTAX); |
285 | } | |
366345fe | 286 | args[argc++] = tok; |
887e553f | 287 | } |
c627d613 | 288 | |
d9c7edf6 | 289 | /* check to see if we've already been given '-l user' in |
9af87151 | 290 | * the remote-shell command */ |
bb4aa89c WD |
291 | for (i = 0; i < argc-1; i++) { |
292 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
293 | dash_l_set = 1; | |
294 | } | |
295 | ||
4f5b0756 | 296 | #ifdef HAVE_REMSH |
366345fe AT |
297 | /* remsh (on HPUX) takes the arguments the other way around */ |
298 | args[argc++] = machine; | |
bb4aa89c | 299 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
300 | args[argc++] = "-l"; |
301 | args[argc++] = user; | |
302 | } | |
7b8356d0 | 303 | #else |
bb4aa89c | 304 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
305 | args[argc++] = "-l"; |
306 | args[argc++] = user; | |
307 | } | |
308 | args[argc++] = machine; | |
7b8356d0 | 309 | #endif |
c627d613 | 310 | |
366345fe | 311 | args[argc++] = rsync_path; |
c627d613 | 312 | |
9af87151 | 313 | if (blocking_io < 0) { |
90e22f4b WD |
314 | char *cp; |
315 | if ((cp = strrchr(cmd, '/')) != NULL) | |
316 | cp++; | |
317 | else | |
318 | cp = cmd; | |
319 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
320 | blocking_io = 1; | |
66b71163 | 321 | } |
e384bfbd | 322 | |
93689aa5 | 323 | server_options(args,&argc); |
e7a392c7 WD |
324 | |
325 | if (argc >= MAX_ARGS - 2) { | |
326 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
327 | exit_cleanup(RERR_SYNTAX); | |
328 | } | |
366345fe | 329 | } |
c627d613 | 330 | |
366345fe | 331 | args[argc++] = "."; |
76076c4b | 332 | |
d9c7edf6 | 333 | if (!daemon_over_rsh && path && *path) |
366345fe | 334 | args[argc++] = path; |
c627d613 | 335 | |
366345fe | 336 | args[argc] = NULL; |
c627d613 | 337 | |
366345fe | 338 | if (verbose > 3) { |
9486289c | 339 | rprintf(FINFO,"cmd="); |
e7a392c7 | 340 | for (i = 0; i < argc; i++) |
71903f60 | 341 | rprintf(FINFO, "%s ", safe_fname(args[i])); |
9486289c | 342 | rprintf(FINFO,"\n"); |
366345fe AT |
343 | } |
344 | ||
c0d8e84c WD |
345 | if (read_batch) { |
346 | int from_gen_pipe[2]; | |
347 | if (fd_pair(from_gen_pipe) < 0) { | |
348 | rsyserr(FERROR, errno, "pipe"); | |
349 | exit_cleanup(RERR_IPC); | |
350 | } | |
351 | batch_gen_fd = from_gen_pipe[0]; | |
352 | *f_out = from_gen_pipe[1]; | |
353 | *f_in = batch_fd; | |
354 | ret = -1; /* no child pid */ | |
355 | } else if (local_server) { | |
b1df18d7 WD |
356 | /* If the user didn't request --[no-]whole-file, force |
357 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 358 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 359 | whole_file = 1; |
25d34a5c | 360 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 361 | } else |
366345fe | 362 | ret = piped_child(args,f_in,f_out); |
c627d613 | 363 | |
3a69fad0 WD |
364 | if (dir) |
365 | free(dir); | |
82306bf6 | 366 | |
366345fe | 367 | return ret; |
c627d613 AT |
368 | |
369 | oom: | |
366345fe AT |
370 | out_of_memory("do_cmd"); |
371 | return 0; /* not reached */ | |
c627d613 AT |
372 | } |
373 | ||
374 | ||
c627d613 AT |
375 | static char *get_local_name(struct file_list *flist,char *name) |
376 | { | |
7a6421fa | 377 | STRUCT_STAT st; |
87cc45e1 | 378 | int e; |
c627d613 | 379 | |
c95da96a | 380 | if (verbose > 2) |
d9c7edf6 | 381 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
382 | flist->count, NS(name)); |
383 | ||
d9c7edf6 | 384 | if (!name) |
1f0610ef | 385 | return NULL; |
c95da96a | 386 | |
1ff5450d AT |
387 | if (do_stat(name,&st) == 0) { |
388 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 389 | if (!push_dir(name)) { |
982e05bb WD |
390 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
391 | full_fname(name)); | |
65417579 | 392 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
393 | } |
394 | return NULL; | |
395 | } | |
396 | if (flist->count > 1) { | |
397 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 398 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
399 | } |
400 | return name; | |
401 | } | |
402 | ||
87cc45e1 | 403 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
404 | return name; |
405 | ||
1ff5450d | 406 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 407 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 408 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
409 | } |
410 | if (verbose > 0) | |
71903f60 | 411 | rprintf(FINFO, "created directory %s\n", safe_fname(name)); |
e5a96f0f WD |
412 | |
413 | if (dry_run) { | |
414 | dry_run++; | |
415 | return NULL; | |
1ff5450d AT |
416 | } |
417 | ||
59187666 | 418 | if (!push_dir(name)) { |
982e05bb WD |
419 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
420 | full_fname(name)); | |
65417579 | 421 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
422 | } |
423 | ||
424 | return NULL; | |
c627d613 AT |
425 | } |
426 | ||
427 | ||
9486289c | 428 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 429 | { |
7a6421fa AT |
430 | int i; |
431 | struct file_list *flist; | |
432 | char *dir = argv[0]; | |
c627d613 | 433 | |
45e08edb WD |
434 | if (verbose > 2) { |
435 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
436 | (long)getpid()); | |
437 | } | |
d9c7edf6 | 438 | |
2adbcdc7 | 439 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
440 | rprintf(FERROR, "ERROR: module is write only\n"); |
441 | exit_cleanup(RERR_SYNTAX); | |
442 | return; | |
443 | } | |
444 | ||
59187666 | 445 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
446 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
447 | full_fname(dir)); | |
65417579 | 448 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
449 | } |
450 | argc--; | |
451 | argv++; | |
d9c7edf6 | 452 | |
7a6421fa AT |
453 | if (strcmp(dir,".")) { |
454 | int l = strlen(dir); | |
d9c7edf6 | 455 | if (strcmp(dir,"/") == 0) |
7a6421fa | 456 | l = 0; |
e7a392c7 | 457 | for (i = 0; i < argc; i++) |
7a6421fa AT |
458 | argv[i] += l+1; |
459 | } | |
c627d613 | 460 | |
48a1ff0d | 461 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 462 | argc = 1; |
7a6421fa AT |
463 | argv--; |
464 | argv[0] = "."; | |
465 | } | |
d9c7edf6 | 466 | |
7a6421fa | 467 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
468 | if (!flist || flist->count == 0) { |
469 | exit_cleanup(0); | |
470 | } | |
471 | ||
da3478b2 WD |
472 | io_start_buffering_in(); |
473 | io_start_buffering_out(); | |
474 | ||
7a6421fa | 475 | send_files(flist,f_out,f_in); |
f1e3656e | 476 | io_flush(FULL_FLUSH); |
7a6421fa | 477 | report(f_out); |
d04e9c51 | 478 | if (protocol_version >= 24) { |
d9c7edf6 | 479 | /* final goodbye message */ |
64c3523a WD |
480 | read_int(f_in); |
481 | } | |
f1e3656e | 482 | io_flush(FULL_FLUSH); |
7a6421fa | 483 | exit_cleanup(0); |
c627d613 AT |
484 | } |
485 | ||
486 | ||
dc5ddbcc AT |
487 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
488 | { | |
d186eb1a | 489 | int pid; |
e1f67417 | 490 | int status = 0; |
41cfde6b | 491 | int error_pipe[2], name_pipe[2]; |
06b96ffa WD |
492 | BOOL need_name_pipe = (basis_dir[0] || partial_dir || fuzzy_basis) |
493 | && !dry_run; | |
dc5ddbcc | 494 | |
bb6721dc WD |
495 | /* The receiving side mustn't obey this, or an existing symlink that |
496 | * points to an identical file won't be replaced by the referent. */ | |
497 | copy_links = 0; | |
498 | ||
d186eb1a AT |
499 | if (preserve_hard_links) |
500 | init_hard_links(flist); | |
dc5ddbcc | 501 | |
864146de WD |
502 | if (delete_before && !local_name && flist->count > 0) { |
503 | /* Moved here from recv_files() to prevent a race condition */ | |
504 | delete_files(flist); | |
6957ae33 AT |
505 | } |
506 | ||
41cfde6b WD |
507 | if (fd_pair(error_pipe) < 0 |
508 | || (need_name_pipe && fd_pair(name_pipe) < 0)) { | |
ab759cd2 | 509 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 510 | exit_cleanup(RERR_IPC); |
554e0a8d | 511 | } |
d9c7edf6 | 512 | |
f1e3656e | 513 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 514 | |
ba449e44 | 515 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 516 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
517 | exit_cleanup(RERR_IPC); |
518 | } | |
519 | ||
520 | if (pid == 0) { | |
554e0a8d | 521 | close(error_pipe[0]); |
41cfde6b WD |
522 | if (need_name_pipe) { |
523 | close(name_pipe[1]); | |
524 | set_blocking(name_pipe[0]); | |
525 | } else | |
526 | name_pipe[0] = -1; | |
3a69fad0 WD |
527 | if (f_in != f_out) |
528 | close(f_out); | |
e08c9610 | 529 | |
554e0a8d | 530 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 531 | close_multiplexing_out(); |
554e0a8d AT |
532 | |
533 | /* set place to send errors */ | |
f1e3656e | 534 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 535 | |
41cfde6b | 536 | recv_files(f_in, flist, local_name, name_pipe[0]); |
f1e3656e | 537 | io_flush(FULL_FLUSH); |
ba5e128d | 538 | report(f_in); |
e08c9610 | 539 | |
f1e3656e WD |
540 | send_msg(MSG_DONE, "", 0); |
541 | io_flush(FULL_FLUSH); | |
4a748188 | 542 | /* finally we go to sleep until our parent kills us |
9af87151 WD |
543 | * with a USR2 signal. We sleep for a short time as on |
544 | * some OSes a signal won't interrupt a sleep! */ | |
f1e3656e WD |
545 | while (1) |
546 | msleep(20); | |
d186eb1a | 547 | } |
dc5ddbcc | 548 | |
b695f242 | 549 | am_generator = 1; |
9eeb3b9c | 550 | close_multiplexing_in(); |
b9f592fb WD |
551 | if (write_batch) |
552 | stop_write_batch(); | |
b695f242 | 553 | |
554e0a8d | 554 | close(error_pipe[1]); |
41cfde6b WD |
555 | if (need_name_pipe) { |
556 | close(name_pipe[0]); | |
557 | set_nonblocking(name_pipe[1]); | |
558 | } else | |
559 | name_pipe[1] = -1; | |
3a69fad0 WD |
560 | if (f_in != f_out) |
561 | close(f_in); | |
e1b3d5c4 | 562 | |
da3478b2 | 563 | io_start_buffering_out(); |
b3e10ed7 | 564 | |
f1e3656e | 565 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 566 | |
41cfde6b | 567 | generate_files(f_out, flist, local_name, name_pipe[1]); |
8d9dc9f9 | 568 | |
e5fbaa71 | 569 | report(-1); |
f1e3656e | 570 | io_flush(FULL_FLUSH); |
d04e9c51 | 571 | if (protocol_version >= 24) { |
8ada7518 AT |
572 | /* send a final goodbye message */ |
573 | write_int(f_out, -1); | |
574 | } | |
f1e3656e | 575 | io_flush(FULL_FLUSH); |
8ada7518 | 576 | |
f1e3656e | 577 | set_msg_fd_in(-1); |
089a2435 | 578 | kill(pid, SIGUSR2); |
d79d1c69 | 579 | wait_process(pid, &status); |
d186eb1a | 580 | return status; |
dc5ddbcc AT |
581 | } |
582 | ||
c627d613 | 583 | |
9486289c | 584 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 585 | { |
7a6421fa AT |
586 | int status; |
587 | struct file_list *flist; | |
6c2e5b56 | 588 | char *local_name = NULL; |
7a6421fa | 589 | char *dir = NULL; |
07bff66f WD |
590 | int save_verbose = verbose; |
591 | ||
592 | if (filesfrom_fd >= 0) { | |
593 | /* We can't mix messages with files-from data on the socket, | |
594 | * so temporarily turn off verbose messages. */ | |
595 | verbose = 0; | |
596 | } | |
f0fca04e | 597 | |
45e08edb WD |
598 | if (verbose > 2) { |
599 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
600 | argc, (long)getpid()); | |
601 | } | |
09b7f5db | 602 | |
2adbcdc7 | 603 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
604 | rprintf(FERROR,"ERROR: module is read only\n"); |
605 | exit_cleanup(RERR_SYNTAX); | |
606 | return; | |
607 | } | |
608 | ||
d9c7edf6 | 609 | |
7a6421fa AT |
610 | if (argc > 0) { |
611 | dir = argv[0]; | |
612 | argc--; | |
613 | argv++; | |
59187666 | 614 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
615 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
616 | full_fname(dir)); | |
65417579 | 617 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 618 | } |
7a6421fa | 619 | } |
c627d613 | 620 | |
da3478b2 | 621 | io_start_buffering_in(); |
57dee64e | 622 | recv_filter_list(f_in); |
c627d613 | 623 | |
7c2a9e76 | 624 | if (filesfrom_fd >= 0) { |
07bff66f WD |
625 | /* We need to send the files-from names to the sender at the |
626 | * same time that we receive the file-list from them, so we | |
627 | * need the IO routines to automatically write out the names | |
628 | * onto our f_out socket as we read the file-list. This | |
629 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
630 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
631 | filesfrom_fd = -1; | |
632 | } | |
633 | ||
b9f592fb | 634 | flist = recv_file_list(f_in); |
07bff66f | 635 | verbose = save_verbose; |
4c36a13e AT |
636 | if (!flist) { |
637 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 638 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 639 | } |
d9c7edf6 WD |
640 | |
641 | if (argc > 0) { | |
7a6421fa AT |
642 | if (strcmp(dir,".")) { |
643 | argv[0] += strlen(dir); | |
3a69fad0 WD |
644 | if (argv[0][0] == '/') |
645 | argv[0]++; | |
7a6421fa AT |
646 | } |
647 | local_name = get_local_name(flist,argv[0]); | |
648 | } | |
c627d613 | 649 | |
7a6421fa AT |
650 | status = do_recv(f_in,f_out,flist,local_name); |
651 | exit_cleanup(status); | |
c627d613 AT |
652 | } |
653 | ||
654 | ||
734a94a2 | 655 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
656 | { |
657 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 658 | return 0; |
25d34a5c MP |
659 | } |
660 | ||
661 | ||
9486289c | 662 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 663 | { |
f0359dd0 AT |
664 | set_nonblocking(f_in); |
665 | set_nonblocking(f_out); | |
666 | ||
da3478b2 WD |
667 | io_set_sock_fds(f_in, f_out); |
668 | setup_protocol(f_out, f_in); | |
669 | ||
d04e9c51 | 670 | if (protocol_version >= 23) |
da3478b2 | 671 | io_start_multiplex_out(); |
7a6421fa | 672 | |
7a6421fa | 673 | if (am_sender) { |
83926d3c | 674 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
9b3318b0 | 675 | |
7842418b | 676 | recv_filter_list(f_in); |
7a6421fa AT |
677 | do_server_sender(f_in, f_out, argc, argv); |
678 | } else { | |
679 | do_server_recv(f_in, f_out, argc, argv); | |
680 | } | |
681 | exit_cleanup(0); | |
366345fe AT |
682 | } |
683 | ||
0ba48136 MP |
684 | |
685 | /* | |
686 | * This is called once the connection has been negotiated. It is used | |
687 | * for rsyncd, remote-shell, and local connections. | |
688 | */ | |
19b27a48 | 689 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 690 | { |
088aac85 | 691 | struct file_list *flist = NULL; |
9486289c AT |
692 | int status = 0, status2 = 0; |
693 | char *local_name = NULL; | |
19b27a48 AT |
694 | |
695 | cleanup_child_pid = pid; | |
67a28eb2 | 696 | if (!read_batch) { |
b9f592fb WD |
697 | set_nonblocking(f_in); |
698 | set_nonblocking(f_out); | |
699 | } | |
f0359dd0 | 700 | |
da3478b2 | 701 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
702 | setup_protocol(f_out,f_in); |
703 | ||
b9f592fb | 704 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 705 | io_start_multiplex_in(); |
d9c7edf6 | 706 | |
18882701 WD |
707 | /* We set our stderr file handle to blocking because ssh might have |
708 | * set it to non-blocking. This can be particularly troublesome if | |
709 | * stderr is a clone of stdout, because ssh would have set our stdout | |
710 | * to non-blocking at the same time (which can easily cause us to lose | |
711 | * output from our print statements). This kluge shouldn't cause ssh | |
712 | * any problems for how we use it. Note also that we delayed setting | |
713 | * this until after the above protocol setup so that we know for sure | |
714 | * that ssh is done twiddling its file descriptors. */ | |
715 | set_blocking(STDERR_FILENO); | |
716 | ||
9486289c | 717 | if (am_sender) { |
83926d3c | 718 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 719 | io_start_buffering_out(); |
a0a33ee5 WD |
720 | if (!remote_filesfrom_file) |
721 | set_msg_fd_in(f_in); | |
57dee64e | 722 | send_filter_list(f_out); |
7c2a9e76 WD |
723 | if (remote_filesfrom_file) |
724 | filesfrom_fd = f_in; | |
b9f592fb WD |
725 | |
726 | if (write_batch) | |
727 | start_write_batch(f_out); | |
64c3523a | 728 | if (!read_batch) /* don't write to pipe */ |
d9c7edf6 | 729 | flist = send_file_list(f_out,argc,argv); |
a0a33ee5 | 730 | set_msg_fd_in(-1); |
d9c7edf6 | 731 | if (verbose > 3) |
9486289c | 732 | rprintf(FINFO,"file list sent\n"); |
e1b3d5c4 | 733 | |
f1e3656e | 734 | io_flush(NORMAL_FLUSH); |
9486289c | 735 | send_files(flist,f_out,f_in); |
f1e3656e | 736 | io_flush(FULL_FLUSH); |
d04e9c51 | 737 | if (protocol_version >= 24) { |
d9c7edf6 | 738 | /* final goodbye message */ |
6c65e146 AT |
739 | read_int(f_in); |
740 | } | |
9486289c AT |
741 | if (pid != -1) { |
742 | if (verbose > 3) | |
08a740ff | 743 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 744 | io_flush(FULL_FLUSH); |
d79d1c69 | 745 | wait_process(pid, &status); |
9486289c | 746 | } |
3d382777 | 747 | report(-1); |
f1e3656e | 748 | io_flush(FULL_FLUSH); |
9486289c AT |
749 | exit_cleanup(status); |
750 | } | |
f7632fc6 | 751 | |
48a1ff0d WD |
752 | if (argc == 0) |
753 | list_only |= 1; | |
d9c7edf6 | 754 | |
57dee64e | 755 | send_filter_list(read_batch ? -1 : f_out); |
d9c7edf6 | 756 | |
7c2a9e76 WD |
757 | if (filesfrom_fd >= 0) { |
758 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
759 | filesfrom_fd = -1; | |
760 | } | |
761 | ||
b9f592fb WD |
762 | if (write_batch) |
763 | start_write_batch(f_in); | |
9486289c AT |
764 | flist = recv_file_list(f_in); |
765 | if (!flist || flist->count == 0) { | |
796d484b | 766 | rprintf(FINFO, "client: nothing to do: " |
d9c7edf6 WD |
767 | "perhaps you need to specify some filenames or " |
768 | "the --recursive option?\n"); | |
9486289c AT |
769 | exit_cleanup(0); |
770 | } | |
d9c7edf6 | 771 | |
9486289c | 772 | local_name = get_local_name(flist,argv[0]); |
d9c7edf6 | 773 | |
9486289c | 774 | status2 = do_recv(f_in,f_out,flist,local_name); |
d9c7edf6 | 775 | |
9486289c | 776 | if (pid != -1) { |
8d9dc9f9 | 777 | if (verbose > 3) |
08a740ff | 778 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 779 | io_flush(FULL_FLUSH); |
d79d1c69 | 780 | wait_process(pid, &status); |
9486289c | 781 | } |
d9c7edf6 | 782 | |
ff81e809 | 783 | return MAX(status, status2); |
9486289c AT |
784 | } |
785 | ||
7169bb4a MP |
786 | static int copy_argv (char *argv[]) |
787 | { | |
788 | int i; | |
789 | ||
790 | for (i = 0; argv[i]; i++) { | |
791 | if (!(argv[i] = strdup(argv[i]))) { | |
792 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
793 | __FILE__, __LINE__); | |
794 | return RERR_MALLOC; | |
795 | } | |
796 | } | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
801 | ||
c1a04ecb | 802 | /** |
0ba48136 MP |
803 | * Start a client for either type of remote connection. Work out |
804 | * whether the arguments request a remote shell or rsyncd connection, | |
805 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
806 | * |
807 | * Calls either start_socket_client (for sockets) or do_cmd and | |
808 | * client_run (for ssh). | |
c1a04ecb | 809 | **/ |
fc8a6b97 | 810 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
811 | { |
812 | char *p; | |
813 | char *shell_machine = NULL; | |
814 | char *shell_path = NULL; | |
815 | char *shell_user = NULL; | |
19b27a48 AT |
816 | int ret; |
817 | pid_t pid; | |
5d6bcd44 | 818 | int f_in,f_out; |
7169bb4a MP |
819 | int rc; |
820 | ||
821 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 822 | * command line. */ |
75aeac44 | 823 | if ((rc = copy_argv(argv))) |
7169bb4a | 824 | return rc; |
5d6bcd44 | 825 | |
75aeac44 | 826 | /* rsync:// always uses rsync server over direct socket connection */ |
b9f592fb WD |
827 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0 |
828 | && !read_batch) { | |
f7632fc6 AT |
829 | char *host, *path; |
830 | ||
7169bb4a | 831 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
832 | p = strchr(host,'/'); |
833 | if (p) { | |
50b31539 | 834 | *p = '\0'; |
f7632fc6 | 835 | path = p+1; |
50b31539 | 836 | } else |
a125c82a | 837 | path = ""; |
50b31539 WD |
838 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
839 | host++; | |
840 | *p++ = '\0'; | |
841 | if (*p != ':') | |
842 | p = NULL; | |
843 | } else | |
844 | p = strchr(host, ':'); | |
2acf81eb DD |
845 | if (p) { |
846 | rsync_port = atoi(p+1); | |
50b31539 | 847 | *p = '\0'; |
cf510ad2 | 848 | } |
f7632fc6 AT |
849 | return start_socket_client(host, path, argc-1, argv+1); |
850 | } | |
851 | ||
d16c245f | 852 | if (!read_batch) { /* for read_batch, NO source is specified */ |
a125c82a | 853 | p = find_colon(argv[0]); |
d16c245f | 854 | if (p) { /* source is remote */ |
7c2a9e76 WD |
855 | if (remote_filesfrom_file |
856 | && remote_filesfrom_file != files_from + 1 | |
857 | && strncmp(files_from, argv[0], p-argv[0]+1) != 0) { | |
858 | rprintf(FERROR, | |
50b31539 | 859 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
860 | exit_cleanup(RERR_SYNTAX); |
861 | } | |
d9c7edf6 WD |
862 | if (p[1] == ':') { /* double colon */ |
863 | *p = 0; | |
864 | if (!shell_cmd) { | |
865 | return start_socket_client(argv[0], p+2, | |
866 | argc-1, argv+1); | |
867 | } | |
868 | p++; | |
869 | daemon_over_rsh = 1; | |
75aeac44 | 870 | } |
3591c066 | 871 | |
d16c245f | 872 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
873 | usage(FERROR); |
874 | exit_cleanup(RERR_SYNTAX); | |
875 | } | |
a125c82a | 876 | |
d9c7edf6 WD |
877 | am_sender = 0; |
878 | *p = 0; | |
879 | shell_machine = argv[0]; | |
880 | shell_path = p+1; | |
d9c7edf6 | 881 | argv++; |
d16c245f | 882 | } else { /* source is local */ |
d9c7edf6 WD |
883 | am_sender = 1; |
884 | ||
885 | /* rsync:// destination uses rsync server over direct socket */ | |
886 | if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) { | |
887 | char *host, *path; | |
888 | ||
889 | host = argv[argc-1] + strlen(URL_PREFIX); | |
890 | p = strchr(host,'/'); | |
891 | if (p) { | |
50b31539 | 892 | *p = '\0'; |
d9c7edf6 | 893 | path = p+1; |
50b31539 | 894 | } else |
d9c7edf6 | 895 | path = ""; |
50b31539 WD |
896 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
897 | host++; | |
898 | *p++ = '\0'; | |
899 | if (*p != ':') | |
900 | p = NULL; | |
901 | } else | |
902 | p = strchr(host, ':'); | |
d9c7edf6 WD |
903 | if (p) { |
904 | rsync_port = atoi(p+1); | |
50b31539 | 905 | *p = '\0'; |
cf510ad2 | 906 | } |
d9c7edf6 | 907 | return start_socket_client(host, path, argc-1, argv); |
a125c82a | 908 | } |
d9c7edf6 | 909 | |
d16c245f | 910 | p = find_colon(argv[argc-1]); /* look in dest arg */ |
7c2a9e76 WD |
911 | if (p && remote_filesfrom_file |
912 | && remote_filesfrom_file != files_from + 1 | |
913 | && strncmp(files_from, argv[argc-1], p-argv[argc-1]+1) != 0) { | |
914 | rprintf(FERROR, | |
50b31539 | 915 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
916 | exit_cleanup(RERR_SYNTAX); |
917 | } | |
d16c245f | 918 | if (!p) { /* no colon found, so src & dest are local */ |
d9c7edf6 | 919 | local_server = 1; |
7c2a9e76 WD |
920 | if (remote_filesfrom_file) { |
921 | rprintf(FERROR, | |
50b31539 | 922 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
923 | exit_cleanup(RERR_SYNTAX); |
924 | } | |
d9c7edf6 | 925 | } else if (p[1] == ':') { /* double colon */ |
a125c82a | 926 | *p = 0; |
d9c7edf6 WD |
927 | if (!shell_cmd) { |
928 | return start_socket_client(argv[argc-1], p+2, | |
929 | argc-1, argv); | |
930 | } | |
931 | p++; | |
932 | daemon_over_rsh = 1; | |
a125c82a | 933 | } |
a125c82a | 934 | |
d9c7edf6 WD |
935 | if (argc < 2) { |
936 | usage(FERROR); | |
937 | exit_cleanup(RERR_SYNTAX); | |
75aeac44 | 938 | } |
3591c066 | 939 | |
d9c7edf6 WD |
940 | if (local_server) { |
941 | shell_machine = NULL; | |
942 | shell_path = argv[argc-1]; | |
943 | } else { | |
944 | *p = 0; | |
945 | shell_machine = argv[argc-1]; | |
946 | shell_path = p+1; | |
947 | } | |
5d6bcd44 | 948 | } |
d16c245f WD |
949 | argc--; |
950 | } else { /* read_batch */ | |
d9c7edf6 WD |
951 | local_server = 1; |
952 | shell_path = argv[argc-1]; | |
b9f592fb WD |
953 | if (find_colon(shell_path)) { |
954 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); | |
955 | exit_cleanup(RERR_SYNTAX); | |
956 | } | |
6902ed17 MP |
957 | } |
958 | ||
5d6bcd44 | 959 | if (shell_machine) { |
6fc048f4 | 960 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
961 | if (p) { |
962 | *p = 0; | |
963 | shell_user = shell_machine; | |
964 | shell_machine = p+1; | |
965 | } | |
966 | } | |
967 | ||
968 | if (verbose > 3) { | |
9486289c | 969 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
71903f60 WD |
970 | shell_cmd ? safe_fname(shell_cmd) : "", |
971 | shell_machine ? safe_fname(shell_machine) : "", | |
972 | shell_user ? safe_fname(shell_user) : "", | |
973 | shell_path ? safe_fname(shell_path) : ""); | |
5d6bcd44 | 974 | } |
d9c7edf6 | 975 | |
d16c245f | 976 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 977 | if (!am_sender && argc > 1) { |
5d6bcd44 | 978 | usage(FERROR); |
65417579 | 979 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 980 | } |
27e3e9c9 | 981 | |
d16c245f | 982 | /* ... or no dest at all */ |
48a1ff0d WD |
983 | if (!am_sender && argc == 0) |
984 | list_only |= 1; | |
d9c7edf6 | 985 | |
75aeac44 WD |
986 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
987 | &f_in,&f_out); | |
988 | ||
989 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 990 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
991 | if (daemon_over_rsh) { |
992 | int tmpret; | |
993 | tmpret = start_inband_exchange(shell_user, shell_path, | |
994 | f_in, f_out, argc); | |
995 | if (tmpret < 0) | |
996 | return tmpret; | |
997 | } | |
998 | ||
fc8a6b97 AT |
999 | ret = client_run(f_in, f_out, pid, argc, argv); |
1000 | ||
1001 | fflush(stdout); | |
1002 | fflush(stderr); | |
1003 | ||
1004 | return ret; | |
5d6bcd44 AT |
1005 | } |
1006 | ||
366345fe | 1007 | |
067669da WD |
1008 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
1009 | { | |
65417579 | 1010 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
1011 | } |
1012 | ||
067669da WD |
1013 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
1014 | { | |
19b27a48 | 1015 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
1016 | _exit(0); |
1017 | } | |
1018 | ||
067669da WD |
1019 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1020 | { | |
029c1713 | 1021 | #ifdef WNOHANG |
ee7118a8 DD |
1022 | int cnt, status; |
1023 | pid_t pid; | |
1024 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1025 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1026 | * out we're instead saving the child exit statuses for later use. |
1027 | * The waitpid() loop presumably eliminates all possibility of leaving | |
1028 | * zombie children, maybe that's why he did it. | |
1029 | */ | |
1030 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
9af87151 WD |
1031 | /* save the child's exit status */ |
1032 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1033 | if (pid_stat_table[cnt].pid == 0) { | |
1034 | pid_stat_table[cnt].pid = pid; | |
1035 | pid_stat_table[cnt].status = status; | |
1036 | break; | |
1037 | } | |
1038 | } | |
ee7118a8 | 1039 | } |
029c1713 | 1040 | #endif |
19b27a48 AT |
1041 | } |
1042 | ||
c0531332 MP |
1043 | |
1044 | /** | |
1045 | * This routine catches signals and tries to send them to gdb. | |
1046 | * | |
1047 | * Because it's called from inside a signal handler it ought not to | |
1048 | * use too many library routines. | |
1049 | * | |
1050 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1051 | * debugging without easy access to X. Perhaps use an environment | |
1052 | * variable, or just call a script? | |
1053 | * | |
1054 | * @todo The /proc/ magic probably only works on Linux (and | |
1055 | * Solaris?) Can we be more portable? | |
1056 | **/ | |
1057 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1058 | const char *get_panic_action(void) |
1059 | { | |
1060 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1061 | ||
1062 | if (cmd_fmt) | |
1063 | return cmd_fmt; | |
1064 | else | |
1065 | return "xterm -display :0 -T Panic -n Panic " | |
1066 | "-e gdb /proc/%d/exe %d"; | |
1067 | } | |
1068 | ||
1069 | ||
9fb3f7a9 MP |
1070 | /** |
1071 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1072 | * | |
1073 | * This signal handler is only installed if we were configured with | |
1074 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1075 | * should just look at the environment variable, but I'm a bit leery | |
1076 | * of a signal sending us into a busy loop. | |
1077 | **/ | |
067669da | 1078 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1079 | { |
1080 | char cmd_buf[300]; | |
1081 | int ret; | |
4fdc39dd MP |
1082 | |
1083 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1084 | getpid(), getpid()); |
1085 | ||
1086 | /* Unless we failed to execute gdb, we allow the process to | |
1087 | * continue. I'm not sure if that's right. */ | |
1088 | ret = system(cmd_buf); | |
1089 | if (ret) | |
1090 | _exit(ret); | |
1091 | } | |
1092 | #endif | |
1093 | ||
1094 | ||
5d6bcd44 | 1095 | int main(int argc,char *argv[]) |
d9c7edf6 | 1096 | { |
ff81e809 | 1097 | int ret; |
66a9dc96 WD |
1098 | int orig_argc = argc; |
1099 | char **orig_argv = argv; | |
5d6bcd44 | 1100 | |
7a6421fa | 1101 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1102 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1103 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1104 | #ifdef MAINTAINER_MODE |
1105 | signal(SIGSEGV, rsync_panic_handler); | |
1106 | signal(SIGFPE, rsync_panic_handler); | |
1107 | signal(SIGABRT, rsync_panic_handler); | |
1108 | signal(SIGBUS, rsync_panic_handler); | |
1109 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1110 | |
7a6421fa | 1111 | starttime = time(NULL); |
6fe05820 | 1112 | am_root = (MY_UID() == 0); |
c627d613 | 1113 | |
a800434a AT |
1114 | memset(&stats, 0, sizeof(stats)); |
1115 | ||
df5e03da AT |
1116 | if (argc < 2) { |
1117 | usage(FERROR); | |
65417579 | 1118 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1119 | } |
1120 | ||
7a6421fa | 1121 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1122 | * carried across */ |
7a6421fa | 1123 | orig_umask = (int)umask(0); |
5d6bcd44 | 1124 | |
50135767 | 1125 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1126 | /* FIXME: We ought to call the same error-handling |
1127 | * code here, rather than relying on getopt. */ | |
50135767 | 1128 | option_error(); |
65417579 | 1129 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1130 | } |
5d6bcd44 | 1131 | |
7a6421fa | 1132 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1133 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1134 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1135 | |
34758d5c MP |
1136 | /* Ignore SIGPIPE; we consistently check error codes and will |
1137 | * see the EPIPE. */ | |
1138 | signal(SIGPIPE, SIG_IGN); | |
1139 | ||
c226b7c2 | 1140 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1141 | * (implemented by forking "pwd" and reading its output) doesn't |
1142 | * work when there are other child processes. Also, on all systems | |
1143 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1144 | push_dir(NULL); |
c226b7c2 | 1145 | |
44e9e221 WD |
1146 | init_flist(); |
1147 | ||
b9f592fb WD |
1148 | if (write_batch || read_batch) { |
1149 | if (write_batch) | |
66a9dc96 | 1150 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1151 | |
dbbab0c4 WD |
1152 | if (read_batch && strcmp(batch_name, "-") == 0) |
1153 | batch_fd = STDIN_FILENO; | |
1154 | else { | |
1155 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1156 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1157 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1158 | } |
b9f592fb WD |
1159 | if (batch_fd < 0) { |
1160 | rsyserr(FERROR, errno, "Batch file %s open error", | |
71903f60 | 1161 | full_fname(batch_name)); |
b9f592fb WD |
1162 | exit_cleanup(RERR_FILEIO); |
1163 | } | |
9459290a WD |
1164 | if (read_batch) |
1165 | read_stream_flags(batch_fd); | |
6902ed17 MP |
1166 | } |
1167 | ||
75aeac44 | 1168 | if (am_daemon && !am_server) |
7a6421fa | 1169 | return daemon_main(); |
f0fca04e | 1170 | |
08ac228f AT |
1171 | if (argc < 1) { |
1172 | usage(FERROR); | |
65417579 | 1173 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1174 | } |
1175 | ||
7a6421fa | 1176 | if (am_server) { |
f0359dd0 AT |
1177 | set_nonblocking(STDIN_FILENO); |
1178 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1179 | if (am_daemon) |
1180 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1181 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1182 | } | |
c627d613 | 1183 | |
ff81e809 | 1184 | ret = start_client(argc, argv); |
d9c7edf6 | 1185 | if (ret == -1) |
9098bbf3 | 1186 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1187 | else |
9098bbf3 MP |
1188 | exit_cleanup(ret); |
1189 | ||
0f5a04e3 | 1190 | return ret; |
c627d613 | 1191 | } |