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 WD |
33 | extern int blocking_io; |
34 | extern int cvs_exclude; | |
35 | extern int delete_mode; | |
48a1ff0d | 36 | extern int delete_before; |
32eda096 | 37 | extern int delete_after; |
48a1ff0d | 38 | extern int delete_excluded; |
32eda096 WD |
39 | extern int daemon_over_rsh; |
40 | extern int do_stats; | |
41 | extern int dry_run; | |
42 | extern int list_only; | |
43 | extern int local_server; | |
44 | extern int log_got_error; | |
45 | extern int module_id; | |
46 | extern int orig_umask; | |
bb6721dc | 47 | extern int copy_links; |
83926d3c | 48 | extern int keep_dirlinks; |
32eda096 | 49 | extern int preserve_hard_links; |
d04e9c51 | 50 | extern int protocol_version; |
32eda096 WD |
51 | extern int recurse; |
52 | extern int relative_paths; | |
53 | extern int rsync_port; | |
b1df18d7 | 54 | extern int whole_file; |
32eda096 WD |
55 | extern int read_batch; |
56 | extern int write_batch; | |
b9f592fb | 57 | extern int batch_fd; |
c0d8e84c | 58 | extern int batch_gen_fd; |
32eda096 WD |
59 | extern int filesfrom_fd; |
60 | extern pid_t cleanup_child_pid; | |
61 | extern char *files_from; | |
62 | extern char *remote_filesfrom_file; | |
7162c65d | 63 | extern char *partial_dir; |
c3fad2e2 | 64 | extern char *basis_dir[]; |
32eda096 WD |
65 | extern char *rsync_path; |
66 | extern char *shell_cmd; | |
9b3318b0 | 67 | extern char *batch_name; |
c627d613 | 68 | |
b695f242 | 69 | |
ee7118a8 DD |
70 | /* there's probably never more than at most 2 outstanding child processes, |
71 | * but set it higher just in case. | |
72 | */ | |
73 | #define MAXCHILDPROCS 5 | |
74 | ||
75 | struct pid_status { | |
76 | pid_t pid; | |
77 | int status; | |
78 | } pid_stat_table[MAXCHILDPROCS]; | |
79 | ||
e5a2b854 | 80 | static void show_malloc_stats(void); |
82980a23 AT |
81 | |
82 | /**************************************************************************** | |
83 | wait for a process to exit, calling io_flush while waiting | |
84 | ****************************************************************************/ | |
85 | void wait_process(pid_t pid, int *status) | |
86 | { | |
ee7118a8 DD |
87 | pid_t waited_pid; |
88 | int cnt; | |
89 | ||
90 | while ((waited_pid = waitpid(pid, status, WNOHANG)) == 0) { | |
a24c6870 | 91 | msleep(20); |
f1e3656e | 92 | io_flush(FULL_FLUSH); |
82980a23 | 93 | } |
d9c7edf6 | 94 | |
6fb812f7 | 95 | if (waited_pid == -1 && errno == ECHILD) { |
ee7118a8 DD |
96 | /* status of requested child no longer available. |
97 | * check to see if it was processed by the sigchld_handler. | |
98 | */ | |
99 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
100 | if (pid == pid_stat_table[cnt].pid) { | |
101 | *status = pid_stat_table[cnt].status; | |
102 | pid_stat_table[cnt].pid = 0; | |
103 | break; | |
104 | } | |
105 | } | |
106 | } | |
107 | ||
d9c7edf6 WD |
108 | /* TODO: If the child exited on a signal, then log an |
109 | * appropriate error message. Perhaps we should also accept a | |
110 | * message describing the purpose of the child. Also indicate | |
111 | * this to the caller so that thhey know something went | |
112 | * wrong. */ | |
82980a23 AT |
113 | *status = WEXITSTATUS(*status); |
114 | } | |
115 | ||
b9f592fb WD |
116 | /* This function gets called from all 3 processes. We want the client side |
117 | * to actually output the text, but the sender is the only process that has | |
118 | * all the stats we need. So, if we're a client sender, we do the report. | |
119 | * If we're a server sender, we write the stats on the supplied fd. If | |
120 | * we're the client receiver we read the stats from the supplied fd and do | |
121 | * the report. All processes might also generate a set of debug stats, if | |
122 | * the verbose level is high enough (this is the only thing that the | |
123 | * generator process and the server receiver ever do here). */ | |
c627d613 AT |
124 | static void report(int f) |
125 | { | |
b9f592fb WD |
126 | /* Cache two stats because the read/write code can change it. */ |
127 | int64 total_read = stats.total_read; | |
128 | int64 total_written = stats.total_written; | |
7a6421fa | 129 | time_t t = time(NULL); |
7a6421fa | 130 | |
7bb7058e | 131 | if (do_stats && verbose > 1) { |
5c15e29f | 132 | /* These come out from every process */ |
7bb7058e | 133 | show_malloc_stats(); |
86943126 | 134 | show_flist_stats(); |
5c15e29f MP |
135 | } |
136 | ||
e5fbaa71 S |
137 | if (am_generator) |
138 | return; | |
139 | ||
248fbb8c | 140 | if (am_daemon) { |
a9766ef1 | 141 | log_exit(0, __FILE__, __LINE__); |
83926d3c WD |
142 | if (f == -1 || !am_sender) |
143 | return; | |
248fbb8c AT |
144 | } |
145 | ||
e19452a9 | 146 | if (am_server) { |
3e491682 | 147 | if (am_sender) { |
b9f592fb WD |
148 | write_longint(f, total_read); |
149 | write_longint(f, total_written); | |
150 | write_longint(f, stats.total_size); | |
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); |
b9f592fb WD |
163 | } else if (write_batch) { |
164 | /* The --read-batch process is going to be a client | |
165 | * receiver, so we need to give it the stats. */ | |
166 | write_longint(batch_fd, total_read); | |
167 | write_longint(batch_fd, total_written); | |
168 | write_longint(batch_fd, stats.total_size); | |
a800434a AT |
169 | } |
170 | ||
171 | if (do_stats) { | |
1f658d42 | 172 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
d9c7edf6 WD |
173 | rprintf(FINFO,"Number of files transferred: %d\n", |
174 | stats.num_transferred_files); | |
175 | rprintf(FINFO,"Total file size: %.0f bytes\n", | |
176 | (double)stats.total_size); | |
177 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", | |
178 | (double)stats.total_transferred_size); | |
179 | rprintf(FINFO,"Literal data: %.0f bytes\n", | |
180 | (double)stats.literal_data); | |
181 | rprintf(FINFO,"Matched data: %.0f bytes\n", | |
182 | (double)stats.matched_data); | |
1f658d42 | 183 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
4de2a174 | 184 | rprintf(FINFO,"Total bytes sent: %.0f\n", |
b9f592fb | 185 | (double)total_written); |
4de2a174 | 186 | rprintf(FINFO,"Total bytes received: %.0f\n", |
b9f592fb | 187 | (double)total_read); |
7a6421fa | 188 | } |
d9c7edf6 | 189 | |
e19452a9 | 190 | if (verbose || do_stats) { |
b9f592fb | 191 | rprintf(FINFO, |
4de2a174 | 192 | "\nsent %.0f bytes received %.0f bytes %.2f bytes/sec\n", |
b9f592fb WD |
193 | (double)total_written, (double)total_read, |
194 | (total_written + total_read)/(0.5 + (t - starttime))); | |
195 | rprintf(FINFO, "total size is %.0f speedup is %.2f\n", | |
d9c7edf6 | 196 | (double)stats.total_size, |
b9f592fb | 197 | (double)stats.total_size / (total_written+total_read)); |
e19452a9 | 198 | } |
fc8a6b97 AT |
199 | |
200 | fflush(stdout); | |
201 | fflush(stderr); | |
c627d613 AT |
202 | } |
203 | ||
204 | ||
e5a2b854 MP |
205 | /** |
206 | * If our C library can get malloc statistics, then show them to FINFO | |
207 | **/ | |
208 | static void show_malloc_stats(void) | |
209 | { | |
210 | #ifdef HAVE_MALLINFO | |
211 | struct mallinfo mi; | |
212 | ||
213 | mi = mallinfo(); | |
214 | ||
ce672562 | 215 | rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
5c15e29f MP |
216 | getpid(), |
217 | am_server ? "server " : "", | |
218 | am_daemon ? "daemon " : "", | |
b695f242 | 219 | who_am_i()); |
e5a2b854 MP |
220 | rprintf(FINFO, " arena: %10d (bytes from sbrk)\n", mi.arena); |
221 | rprintf(FINFO, " ordblks: %10d (chunks not in use)\n", mi.ordblks); | |
222 | rprintf(FINFO, " smblks: %10d\n", mi.smblks); | |
223 | rprintf(FINFO, " hblks: %10d (chunks from mmap)\n", mi.hblks); | |
224 | rprintf(FINFO, " hblkhd: %10d (bytes from mmap)\n", mi.hblkhd); | |
7b74bba1 S |
225 | rprintf(FINFO, " allmem: %10d (bytes from sbrk + mmap)\n", |
226 | mi.arena + mi.hblkhd); | |
e5a2b854 MP |
227 | rprintf(FINFO, " usmblks: %10d\n", mi.usmblks); |
228 | rprintf(FINFO, " fsmblks: %10d\n", mi.fsmblks); | |
229 | rprintf(FINFO, " uordblks: %10d (bytes used)\n", mi.uordblks); | |
230 | rprintf(FINFO, " fordblks: %10d (bytes free)\n", mi.fordblks); | |
231 | rprintf(FINFO, " keepcost: %10d (bytes in releasable chunk)\n", mi.keepcost); | |
232 | #endif /* HAVE_MALLINFO */ | |
233 | } | |
234 | ||
235 | ||
0882faa2 | 236 | /* Start the remote shell. cmd may be NULL to use the default. */ |
6c2e5b56 WD |
237 | static pid_t do_cmd(char *cmd, char *machine, char *user, char *path, |
238 | int *f_in, int *f_out) | |
c627d613 | 239 | { |
6c2e5b56 | 240 | int i, argc = 0; |
887e553f | 241 | char *args[MAX_ARGS]; |
19b27a48 | 242 | pid_t ret; |
6c2e5b56 | 243 | char *tok, *dir = NULL; |
bb4aa89c | 244 | int dash_l_set = 0; |
366345fe | 245 | |
088aac85 | 246 | if (!read_batch && !local_server) { |
9af87151 | 247 | char *rsh_env = getenv(RSYNC_RSH_ENV); |
366345fe | 248 | if (!cmd) |
9af87151 | 249 | cmd = rsh_env; |
366345fe AT |
250 | if (!cmd) |
251 | cmd = RSYNC_RSH; | |
252 | cmd = strdup(cmd); | |
d9c7edf6 | 253 | if (!cmd) |
366345fe AT |
254 | goto oom; |
255 | ||
887e553f | 256 | for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) { |
e7a392c7 WD |
257 | /* Comparison leaves rooms for server_options(). */ |
258 | if (argc >= MAX_ARGS - 100) { | |
259 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
887e553f WD |
260 | exit_cleanup(RERR_SYNTAX); |
261 | } | |
366345fe | 262 | args[argc++] = tok; |
887e553f | 263 | } |
c627d613 | 264 | |
d9c7edf6 | 265 | /* check to see if we've already been given '-l user' in |
9af87151 | 266 | * the remote-shell command */ |
bb4aa89c WD |
267 | for (i = 0; i < argc-1; i++) { |
268 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
269 | dash_l_set = 1; | |
270 | } | |
271 | ||
7b8356d0 | 272 | #if HAVE_REMSH |
366345fe AT |
273 | /* remsh (on HPUX) takes the arguments the other way around */ |
274 | args[argc++] = machine; | |
bb4aa89c | 275 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
276 | args[argc++] = "-l"; |
277 | args[argc++] = user; | |
278 | } | |
7b8356d0 | 279 | #else |
bb4aa89c | 280 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
281 | args[argc++] = "-l"; |
282 | args[argc++] = user; | |
283 | } | |
284 | args[argc++] = machine; | |
7b8356d0 | 285 | #endif |
c627d613 | 286 | |
366345fe | 287 | args[argc++] = rsync_path; |
c627d613 | 288 | |
9af87151 | 289 | if (blocking_io < 0) { |
90e22f4b WD |
290 | char *cp; |
291 | if ((cp = strrchr(cmd, '/')) != NULL) | |
292 | cp++; | |
293 | else | |
294 | cp = cmd; | |
295 | if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0) | |
296 | blocking_io = 1; | |
66b71163 | 297 | } |
e384bfbd | 298 | |
93689aa5 | 299 | server_options(args,&argc); |
e7a392c7 WD |
300 | |
301 | if (argc >= MAX_ARGS - 2) { | |
302 | rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n"); | |
303 | exit_cleanup(RERR_SYNTAX); | |
304 | } | |
366345fe | 305 | } |
c627d613 | 306 | |
366345fe | 307 | args[argc++] = "."; |
76076c4b | 308 | |
d9c7edf6 | 309 | if (!daemon_over_rsh && path && *path) |
366345fe | 310 | args[argc++] = path; |
c627d613 | 311 | |
366345fe | 312 | args[argc] = NULL; |
c627d613 | 313 | |
366345fe | 314 | if (verbose > 3) { |
9486289c | 315 | rprintf(FINFO,"cmd="); |
e7a392c7 | 316 | for (i = 0; i < argc; i++) |
9486289c AT |
317 | rprintf(FINFO,"%s ",args[i]); |
318 | rprintf(FINFO,"\n"); | |
366345fe AT |
319 | } |
320 | ||
c0d8e84c WD |
321 | if (read_batch) { |
322 | int from_gen_pipe[2]; | |
323 | if (fd_pair(from_gen_pipe) < 0) { | |
324 | rsyserr(FERROR, errno, "pipe"); | |
325 | exit_cleanup(RERR_IPC); | |
326 | } | |
327 | batch_gen_fd = from_gen_pipe[0]; | |
328 | *f_out = from_gen_pipe[1]; | |
329 | *f_in = batch_fd; | |
330 | ret = -1; /* no child pid */ | |
331 | } else if (local_server) { | |
b1df18d7 WD |
332 | /* If the user didn't request --[no-]whole-file, force |
333 | * it on, but only if we're not batch processing. */ | |
c0d8e84c | 334 | if (whole_file < 0 && !write_batch) |
b1df18d7 | 335 | whole_file = 1; |
25d34a5c | 336 | ret = local_child(argc, args, f_in, f_out, child_main); |
c0d8e84c | 337 | } else |
366345fe | 338 | ret = piped_child(args,f_in,f_out); |
c627d613 | 339 | |
3a69fad0 WD |
340 | if (dir) |
341 | free(dir); | |
82306bf6 | 342 | |
366345fe | 343 | return ret; |
c627d613 AT |
344 | |
345 | oom: | |
366345fe AT |
346 | out_of_memory("do_cmd"); |
347 | return 0; /* not reached */ | |
c627d613 AT |
348 | } |
349 | ||
350 | ||
c627d613 AT |
351 | static char *get_local_name(struct file_list *flist,char *name) |
352 | { | |
7a6421fa | 353 | STRUCT_STAT st; |
87cc45e1 | 354 | int e; |
c627d613 | 355 | |
c95da96a | 356 | if (verbose > 2) |
d9c7edf6 | 357 | rprintf(FINFO,"get_local_name count=%d %s\n", |
1f0610ef DD |
358 | flist->count, NS(name)); |
359 | ||
d9c7edf6 | 360 | if (!name) |
1f0610ef | 361 | return NULL; |
c95da96a | 362 | |
1ff5450d AT |
363 | if (do_stat(name,&st) == 0) { |
364 | if (S_ISDIR(st.st_mode)) { | |
59187666 | 365 | if (!push_dir(name)) { |
982e05bb WD |
366 | rsyserr(FERROR, errno, "push_dir#1 %s failed", |
367 | full_fname(name)); | |
65417579 | 368 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
369 | } |
370 | return NULL; | |
371 | } | |
372 | if (flist->count > 1) { | |
373 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 374 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
375 | } |
376 | return name; | |
377 | } | |
378 | ||
87cc45e1 | 379 | if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/')) |
1ff5450d AT |
380 | return name; |
381 | ||
1ff5450d | 382 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
982e05bb | 383 | rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name)); |
65417579 | 384 | exit_cleanup(RERR_FILEIO); |
e5a96f0f WD |
385 | } |
386 | if (verbose > 0) | |
387 | rprintf(FINFO, "created directory %s\n", name); | |
388 | ||
389 | if (dry_run) { | |
390 | dry_run++; | |
391 | return NULL; | |
1ff5450d AT |
392 | } |
393 | ||
59187666 | 394 | if (!push_dir(name)) { |
982e05bb WD |
395 | rsyserr(FERROR, errno, "push_dir#2 %s failed", |
396 | full_fname(name)); | |
65417579 | 397 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
398 | } |
399 | ||
400 | return NULL; | |
c627d613 AT |
401 | } |
402 | ||
403 | ||
9486289c | 404 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 405 | { |
7a6421fa AT |
406 | int i; |
407 | struct file_list *flist; | |
408 | char *dir = argv[0]; | |
c627d613 | 409 | |
45e08edb WD |
410 | if (verbose > 2) { |
411 | rprintf(FINFO, "server_sender starting pid=%ld\n", | |
412 | (long)getpid()); | |
413 | } | |
d9c7edf6 | 414 | |
2adbcdc7 | 415 | if (am_daemon && lp_write_only(module_id)) { |
7a92ded3 WD |
416 | rprintf(FERROR, "ERROR: module is write only\n"); |
417 | exit_cleanup(RERR_SYNTAX); | |
418 | return; | |
419 | } | |
420 | ||
59187666 | 421 | if (!relative_paths && !push_dir(dir)) { |
982e05bb WD |
422 | rsyserr(FERROR, errno, "push_dir#3 %s failed", |
423 | full_fname(dir)); | |
65417579 | 424 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
425 | } |
426 | argc--; | |
427 | argv++; | |
d9c7edf6 | 428 | |
7a6421fa AT |
429 | if (strcmp(dir,".")) { |
430 | int l = strlen(dir); | |
d9c7edf6 | 431 | if (strcmp(dir,"/") == 0) |
7a6421fa | 432 | l = 0; |
e7a392c7 | 433 | for (i = 0; i < argc; i++) |
7a6421fa AT |
434 | argv[i] += l+1; |
435 | } | |
c627d613 | 436 | |
48a1ff0d | 437 | if (argc == 0 && (recurse || list_only)) { |
e1f67417 | 438 | argc = 1; |
7a6421fa AT |
439 | argv--; |
440 | argv[0] = "."; | |
441 | } | |
d9c7edf6 | 442 | |
7a6421fa | 443 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
444 | if (!flist || flist->count == 0) { |
445 | exit_cleanup(0); | |
446 | } | |
447 | ||
da3478b2 WD |
448 | io_start_buffering_in(); |
449 | io_start_buffering_out(); | |
450 | ||
7a6421fa | 451 | send_files(flist,f_out,f_in); |
f1e3656e | 452 | io_flush(FULL_FLUSH); |
7a6421fa | 453 | report(f_out); |
d04e9c51 | 454 | if (protocol_version >= 24) { |
d9c7edf6 | 455 | /* final goodbye message */ |
64c3523a WD |
456 | read_int(f_in); |
457 | } | |
f1e3656e | 458 | io_flush(FULL_FLUSH); |
7a6421fa | 459 | exit_cleanup(0); |
c627d613 AT |
460 | } |
461 | ||
462 | ||
dc5ddbcc AT |
463 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
464 | { | |
d186eb1a | 465 | int pid; |
e1f67417 | 466 | int status = 0; |
41cfde6b | 467 | int error_pipe[2], name_pipe[2]; |
7162c65d | 468 | BOOL need_name_pipe = (basis_dir[0] || partial_dir) && !dry_run; |
dc5ddbcc | 469 | |
bb6721dc WD |
470 | /* The receiving side mustn't obey this, or an existing symlink that |
471 | * points to an identical file won't be replaced by the referent. */ | |
472 | copy_links = 0; | |
473 | ||
d186eb1a AT |
474 | if (preserve_hard_links) |
475 | init_hard_links(flist); | |
dc5ddbcc | 476 | |
48a1ff0d | 477 | if (delete_before) { |
6957ae33 | 478 | /* I moved this here from recv_files() to prevent a race condition */ |
b98f040e | 479 | if (recurse && !local_name && flist->count > 0) |
6957ae33 | 480 | delete_files(flist); |
6957ae33 AT |
481 | } |
482 | ||
41cfde6b WD |
483 | if (fd_pair(error_pipe) < 0 |
484 | || (need_name_pipe && fd_pair(name_pipe) < 0)) { | |
ab759cd2 | 485 | rsyserr(FERROR, errno, "pipe failed in do_recv"); |
c8f2f857 | 486 | exit_cleanup(RERR_IPC); |
554e0a8d | 487 | } |
d9c7edf6 | 488 | |
f1e3656e | 489 | io_flush(NORMAL_FLUSH); |
c6e7fcb4 | 490 | |
ba449e44 | 491 | if ((pid = do_fork()) == -1) { |
c8f2f857 | 492 | rsyserr(FERROR, errno, "fork failed in do_recv"); |
ba449e44 WD |
493 | exit_cleanup(RERR_IPC); |
494 | } | |
495 | ||
496 | if (pid == 0) { | |
554e0a8d | 497 | close(error_pipe[0]); |
41cfde6b WD |
498 | if (need_name_pipe) { |
499 | close(name_pipe[1]); | |
500 | set_blocking(name_pipe[0]); | |
501 | } else | |
502 | name_pipe[0] = -1; | |
3a69fad0 WD |
503 | if (f_in != f_out) |
504 | close(f_out); | |
e08c9610 | 505 | |
554e0a8d | 506 | /* we can't let two processes write to the socket at one time */ |
9eeb3b9c | 507 | close_multiplexing_out(); |
554e0a8d AT |
508 | |
509 | /* set place to send errors */ | |
f1e3656e | 510 | set_msg_fd_out(error_pipe[1]); |
554e0a8d | 511 | |
41cfde6b | 512 | recv_files(f_in, flist, local_name, name_pipe[0]); |
f1e3656e | 513 | io_flush(FULL_FLUSH); |
ba5e128d | 514 | report(f_in); |
e08c9610 | 515 | |
f1e3656e WD |
516 | send_msg(MSG_DONE, "", 0); |
517 | io_flush(FULL_FLUSH); | |
4a748188 | 518 | /* finally we go to sleep until our parent kills us |
9af87151 WD |
519 | * with a USR2 signal. We sleep for a short time as on |
520 | * some OSes a signal won't interrupt a sleep! */ | |
f1e3656e WD |
521 | while (1) |
522 | msleep(20); | |
d186eb1a | 523 | } |
dc5ddbcc | 524 | |
b695f242 | 525 | am_generator = 1; |
9eeb3b9c | 526 | close_multiplexing_in(); |
b9f592fb WD |
527 | if (write_batch) |
528 | stop_write_batch(); | |
b695f242 | 529 | |
554e0a8d | 530 | close(error_pipe[1]); |
41cfde6b WD |
531 | if (need_name_pipe) { |
532 | close(name_pipe[0]); | |
533 | set_nonblocking(name_pipe[1]); | |
534 | } else | |
535 | name_pipe[1] = -1; | |
3a69fad0 WD |
536 | if (f_in != f_out) |
537 | close(f_in); | |
e1b3d5c4 | 538 | |
da3478b2 | 539 | io_start_buffering_out(); |
b3e10ed7 | 540 | |
f1e3656e | 541 | set_msg_fd_in(error_pipe[0]); |
554e0a8d | 542 | |
41cfde6b | 543 | generate_files(f_out, flist, local_name, name_pipe[1]); |
8d9dc9f9 | 544 | |
e5fbaa71 | 545 | report(-1); |
f1e3656e | 546 | io_flush(FULL_FLUSH); |
d04e9c51 | 547 | if (protocol_version >= 24) { |
8ada7518 AT |
548 | /* send a final goodbye message */ |
549 | write_int(f_out, -1); | |
550 | } | |
f1e3656e | 551 | io_flush(FULL_FLUSH); |
8ada7518 | 552 | |
f1e3656e | 553 | set_msg_fd_in(-1); |
089a2435 | 554 | kill(pid, SIGUSR2); |
d79d1c69 | 555 | wait_process(pid, &status); |
d186eb1a | 556 | return status; |
dc5ddbcc AT |
557 | } |
558 | ||
c627d613 | 559 | |
9486289c | 560 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 561 | { |
7a6421fa AT |
562 | int status; |
563 | struct file_list *flist; | |
6c2e5b56 | 564 | char *local_name = NULL; |
7a6421fa | 565 | char *dir = NULL; |
07bff66f WD |
566 | int save_verbose = verbose; |
567 | ||
568 | if (filesfrom_fd >= 0) { | |
569 | /* We can't mix messages with files-from data on the socket, | |
570 | * so temporarily turn off verbose messages. */ | |
571 | verbose = 0; | |
572 | } | |
f0fca04e | 573 | |
45e08edb WD |
574 | if (verbose > 2) { |
575 | rprintf(FINFO, "server_recv(%d) starting pid=%ld\n", | |
576 | argc, (long)getpid()); | |
577 | } | |
09b7f5db | 578 | |
2adbcdc7 | 579 | if (am_daemon && lp_read_only(module_id)) { |
09b7f5db AT |
580 | rprintf(FERROR,"ERROR: module is read only\n"); |
581 | exit_cleanup(RERR_SYNTAX); | |
582 | return; | |
583 | } | |
584 | ||
d9c7edf6 | 585 | |
7a6421fa AT |
586 | if (argc > 0) { |
587 | dir = argv[0]; | |
588 | argc--; | |
589 | argv++; | |
59187666 | 590 | if (!am_daemon && !push_dir(dir)) { |
982e05bb WD |
591 | rsyserr(FERROR, errno, "push_dir#4 %s failed", |
592 | full_fname(dir)); | |
65417579 | 593 | exit_cleanup(RERR_FILESELECT); |
d9c7edf6 | 594 | } |
7a6421fa | 595 | } |
c627d613 | 596 | |
da3478b2 | 597 | io_start_buffering_in(); |
b33b791e | 598 | if (delete_mode && !delete_excluded) |
7a6421fa | 599 | recv_exclude_list(f_in); |
c627d613 | 600 | |
7c2a9e76 | 601 | if (filesfrom_fd >= 0) { |
07bff66f WD |
602 | /* We need to send the files-from names to the sender at the |
603 | * same time that we receive the file-list from them, so we | |
604 | * need the IO routines to automatically write out the names | |
605 | * onto our f_out socket as we read the file-list. This | |
606 | * avoids both deadlock and extra delays/buffers. */ | |
7c2a9e76 WD |
607 | io_set_filesfrom_fds(filesfrom_fd, f_out); |
608 | filesfrom_fd = -1; | |
609 | } | |
610 | ||
b9f592fb | 611 | flist = recv_file_list(f_in); |
07bff66f | 612 | verbose = save_verbose; |
4c36a13e AT |
613 | if (!flist) { |
614 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 615 | exit_cleanup(RERR_FILESELECT); |
7a6421fa | 616 | } |
d9c7edf6 WD |
617 | |
618 | if (argc > 0) { | |
7a6421fa AT |
619 | if (strcmp(dir,".")) { |
620 | argv[0] += strlen(dir); | |
3a69fad0 WD |
621 | if (argv[0][0] == '/') |
622 | argv[0]++; | |
7a6421fa AT |
623 | } |
624 | local_name = get_local_name(flist,argv[0]); | |
625 | } | |
c627d613 | 626 | |
7a6421fa AT |
627 | status = do_recv(f_in,f_out,flist,local_name); |
628 | exit_cleanup(status); | |
c627d613 AT |
629 | } |
630 | ||
631 | ||
734a94a2 | 632 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
633 | { |
634 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 635 | return 0; |
25d34a5c MP |
636 | } |
637 | ||
638 | ||
9486289c | 639 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 640 | { |
f0359dd0 AT |
641 | set_nonblocking(f_in); |
642 | set_nonblocking(f_out); | |
643 | ||
da3478b2 WD |
644 | io_set_sock_fds(f_in, f_out); |
645 | setup_protocol(f_out, f_in); | |
646 | ||
d04e9c51 | 647 | if (protocol_version >= 23) |
da3478b2 | 648 | io_start_multiplex_out(); |
7a6421fa | 649 | |
7a6421fa | 650 | if (am_sender) { |
83926d3c | 651 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
9b3318b0 | 652 | |
b9f592fb WD |
653 | recv_exclude_list(f_in); |
654 | if (cvs_exclude) | |
655 | add_cvs_excludes(); | |
7a6421fa AT |
656 | do_server_sender(f_in, f_out, argc, argv); |
657 | } else { | |
658 | do_server_recv(f_in, f_out, argc, argv); | |
659 | } | |
660 | exit_cleanup(0); | |
366345fe AT |
661 | } |
662 | ||
0ba48136 MP |
663 | |
664 | /* | |
665 | * This is called once the connection has been negotiated. It is used | |
666 | * for rsyncd, remote-shell, and local connections. | |
667 | */ | |
19b27a48 | 668 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 669 | { |
088aac85 | 670 | struct file_list *flist = NULL; |
9486289c AT |
671 | int status = 0, status2 = 0; |
672 | char *local_name = NULL; | |
19b27a48 AT |
673 | |
674 | cleanup_child_pid = pid; | |
67a28eb2 | 675 | if (!read_batch) { |
b9f592fb WD |
676 | set_nonblocking(f_in); |
677 | set_nonblocking(f_out); | |
678 | } | |
f0359dd0 | 679 | |
da3478b2 | 680 | io_set_sock_fds(f_in, f_out); |
6d7b6081 AT |
681 | setup_protocol(f_out,f_in); |
682 | ||
b9f592fb | 683 | if (protocol_version >= 23 && !read_batch) |
da3478b2 | 684 | io_start_multiplex_in(); |
d9c7edf6 | 685 | |
18882701 WD |
686 | /* We set our stderr file handle to blocking because ssh might have |
687 | * set it to non-blocking. This can be particularly troublesome if | |
688 | * stderr is a clone of stdout, because ssh would have set our stdout | |
689 | * to non-blocking at the same time (which can easily cause us to lose | |
690 | * output from our print statements). This kluge shouldn't cause ssh | |
691 | * any problems for how we use it. Note also that we delayed setting | |
692 | * this until after the above protocol setup so that we know for sure | |
693 | * that ssh is done twiddling its file descriptors. */ | |
694 | set_blocking(STDERR_FILENO); | |
695 | ||
9486289c | 696 | if (am_sender) { |
83926d3c | 697 | keep_dirlinks = 0; /* Must be disabled on the sender. */ |
da3478b2 | 698 | io_start_buffering_out(); |
a0a33ee5 WD |
699 | if (!remote_filesfrom_file) |
700 | set_msg_fd_in(f_in); | |
9486289c AT |
701 | if (cvs_exclude) |
702 | add_cvs_excludes(); | |
d9c7edf6 | 703 | if (delete_mode && !delete_excluded) |
9486289c | 704 | send_exclude_list(f_out); |
7c2a9e76 WD |
705 | if (remote_filesfrom_file) |
706 | filesfrom_fd = f_in; | |
b9f592fb WD |
707 | |
708 | if (write_batch) | |
709 | start_write_batch(f_out); | |
64c3523a | 710 | if (!read_batch) /* don't write to pipe */ |
d9c7edf6 | 711 | flist = send_file_list(f_out,argc,argv); |
a0a33ee5 | 712 | set_msg_fd_in(-1); |
d9c7edf6 | 713 | if (verbose > 3) |
9486289c | 714 | rprintf(FINFO,"file list sent\n"); |
e1b3d5c4 | 715 | |
f1e3656e | 716 | io_flush(NORMAL_FLUSH); |
9486289c | 717 | send_files(flist,f_out,f_in); |
f1e3656e | 718 | io_flush(FULL_FLUSH); |
d04e9c51 | 719 | if (protocol_version >= 24) { |
d9c7edf6 | 720 | /* final goodbye message */ |
6c65e146 AT |
721 | read_int(f_in); |
722 | } | |
9486289c AT |
723 | if (pid != -1) { |
724 | if (verbose > 3) | |
08a740ff | 725 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
f1e3656e | 726 | io_flush(FULL_FLUSH); |
d79d1c69 | 727 | wait_process(pid, &status); |
9486289c | 728 | } |
3d382777 | 729 | report(-1); |
f1e3656e | 730 | io_flush(FULL_FLUSH); |
9486289c AT |
731 | exit_cleanup(status); |
732 | } | |
f7632fc6 | 733 | |
48a1ff0d WD |
734 | if (argc == 0) |
735 | list_only |= 1; | |
d9c7edf6 | 736 | |
1082b52b | 737 | if (!read_batch) |
d9c7edf6 | 738 | send_exclude_list(f_out); |
928a00c4 WD |
739 | if (cvs_exclude) |
740 | add_cvs_excludes(); | |
d9c7edf6 | 741 | |
7c2a9e76 WD |
742 | if (filesfrom_fd >= 0) { |
743 | io_set_filesfrom_fds(filesfrom_fd, f_out); | |
744 | filesfrom_fd = -1; | |
745 | } | |
746 | ||
b9f592fb WD |
747 | if (write_batch) |
748 | start_write_batch(f_in); | |
9486289c AT |
749 | flist = recv_file_list(f_in); |
750 | if (!flist || flist->count == 0) { | |
796d484b | 751 | rprintf(FINFO, "client: nothing to do: " |
d9c7edf6 WD |
752 | "perhaps you need to specify some filenames or " |
753 | "the --recursive option?\n"); | |
9486289c AT |
754 | exit_cleanup(0); |
755 | } | |
d9c7edf6 | 756 | |
9486289c | 757 | local_name = get_local_name(flist,argv[0]); |
d9c7edf6 | 758 | |
9486289c | 759 | status2 = do_recv(f_in,f_out,flist,local_name); |
d9c7edf6 | 760 | |
9486289c | 761 | if (pid != -1) { |
8d9dc9f9 | 762 | if (verbose > 3) |
08a740ff | 763 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
f1e3656e | 764 | io_flush(FULL_FLUSH); |
d79d1c69 | 765 | wait_process(pid, &status); |
9486289c | 766 | } |
d9c7edf6 | 767 | |
ff81e809 | 768 | return MAX(status, status2); |
9486289c AT |
769 | } |
770 | ||
7169bb4a MP |
771 | static int copy_argv (char *argv[]) |
772 | { | |
773 | int i; | |
774 | ||
775 | for (i = 0; argv[i]; i++) { | |
776 | if (!(argv[i] = strdup(argv[i]))) { | |
777 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
778 | __FILE__, __LINE__); | |
779 | return RERR_MALLOC; | |
780 | } | |
781 | } | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
786 | ||
c1a04ecb | 787 | /** |
0ba48136 MP |
788 | * Start a client for either type of remote connection. Work out |
789 | * whether the arguments request a remote shell or rsyncd connection, | |
790 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
791 | * |
792 | * Calls either start_socket_client (for sockets) or do_cmd and | |
793 | * client_run (for ssh). | |
c1a04ecb | 794 | **/ |
fc8a6b97 | 795 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
796 | { |
797 | char *p; | |
798 | char *shell_machine = NULL; | |
799 | char *shell_path = NULL; | |
800 | char *shell_user = NULL; | |
19b27a48 AT |
801 | int ret; |
802 | pid_t pid; | |
5d6bcd44 | 803 | int f_in,f_out; |
7169bb4a MP |
804 | int rc; |
805 | ||
806 | /* Don't clobber argv[] so that ps(1) can still show the right | |
d9c7edf6 | 807 | * command line. */ |
75aeac44 | 808 | if ((rc = copy_argv(argv))) |
7169bb4a | 809 | return rc; |
5d6bcd44 | 810 | |
75aeac44 | 811 | /* rsync:// always uses rsync server over direct socket connection */ |
b9f592fb WD |
812 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0 |
813 | && !read_batch) { | |
f7632fc6 AT |
814 | char *host, *path; |
815 | ||
7169bb4a | 816 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
817 | p = strchr(host,'/'); |
818 | if (p) { | |
50b31539 | 819 | *p = '\0'; |
f7632fc6 | 820 | path = p+1; |
50b31539 | 821 | } else |
a125c82a | 822 | path = ""; |
50b31539 WD |
823 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
824 | host++; | |
825 | *p++ = '\0'; | |
826 | if (*p != ':') | |
827 | p = NULL; | |
828 | } else | |
829 | p = strchr(host, ':'); | |
2acf81eb DD |
830 | if (p) { |
831 | rsync_port = atoi(p+1); | |
50b31539 | 832 | *p = '\0'; |
cf510ad2 | 833 | } |
f7632fc6 AT |
834 | return start_socket_client(host, path, argc-1, argv+1); |
835 | } | |
836 | ||
d16c245f | 837 | if (!read_batch) { /* for read_batch, NO source is specified */ |
a125c82a | 838 | p = find_colon(argv[0]); |
d16c245f | 839 | if (p) { /* source is remote */ |
7c2a9e76 WD |
840 | if (remote_filesfrom_file |
841 | && remote_filesfrom_file != files_from + 1 | |
842 | && strncmp(files_from, argv[0], p-argv[0]+1) != 0) { | |
843 | rprintf(FERROR, | |
50b31539 | 844 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
845 | exit_cleanup(RERR_SYNTAX); |
846 | } | |
d9c7edf6 WD |
847 | if (p[1] == ':') { /* double colon */ |
848 | *p = 0; | |
849 | if (!shell_cmd) { | |
850 | return start_socket_client(argv[0], p+2, | |
851 | argc-1, argv+1); | |
852 | } | |
853 | p++; | |
854 | daemon_over_rsh = 1; | |
75aeac44 | 855 | } |
3591c066 | 856 | |
d16c245f | 857 | if (argc < 1) { /* destination required */ |
d9c7edf6 WD |
858 | usage(FERROR); |
859 | exit_cleanup(RERR_SYNTAX); | |
860 | } | |
a125c82a | 861 | |
d9c7edf6 WD |
862 | am_sender = 0; |
863 | *p = 0; | |
864 | shell_machine = argv[0]; | |
865 | shell_path = p+1; | |
d9c7edf6 | 866 | argv++; |
d16c245f | 867 | } else { /* source is local */ |
d9c7edf6 WD |
868 | am_sender = 1; |
869 | ||
870 | /* rsync:// destination uses rsync server over direct socket */ | |
871 | if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) { | |
872 | char *host, *path; | |
873 | ||
874 | host = argv[argc-1] + strlen(URL_PREFIX); | |
875 | p = strchr(host,'/'); | |
876 | if (p) { | |
50b31539 | 877 | *p = '\0'; |
d9c7edf6 | 878 | path = p+1; |
50b31539 | 879 | } else |
d9c7edf6 | 880 | path = ""; |
50b31539 WD |
881 | if (*host == '[' && (p = strchr(host, ']')) != NULL) { |
882 | host++; | |
883 | *p++ = '\0'; | |
884 | if (*p != ':') | |
885 | p = NULL; | |
886 | } else | |
887 | p = strchr(host, ':'); | |
d9c7edf6 WD |
888 | if (p) { |
889 | rsync_port = atoi(p+1); | |
50b31539 | 890 | *p = '\0'; |
cf510ad2 | 891 | } |
d9c7edf6 | 892 | return start_socket_client(host, path, argc-1, argv); |
a125c82a | 893 | } |
d9c7edf6 | 894 | |
d16c245f | 895 | p = find_colon(argv[argc-1]); /* look in dest arg */ |
7c2a9e76 WD |
896 | if (p && remote_filesfrom_file |
897 | && remote_filesfrom_file != files_from + 1 | |
898 | && strncmp(files_from, argv[argc-1], p-argv[argc-1]+1) != 0) { | |
899 | rprintf(FERROR, | |
50b31539 | 900 | "--files-from hostname is not the same as the transfer hostname\n"); |
7c2a9e76 WD |
901 | exit_cleanup(RERR_SYNTAX); |
902 | } | |
d16c245f | 903 | if (!p) { /* no colon found, so src & dest are local */ |
d9c7edf6 | 904 | local_server = 1; |
7c2a9e76 WD |
905 | if (remote_filesfrom_file) { |
906 | rprintf(FERROR, | |
50b31539 | 907 | "--files-from cannot be remote when the transfer is local\n"); |
7c2a9e76 WD |
908 | exit_cleanup(RERR_SYNTAX); |
909 | } | |
d9c7edf6 | 910 | } else if (p[1] == ':') { /* double colon */ |
a125c82a | 911 | *p = 0; |
d9c7edf6 WD |
912 | if (!shell_cmd) { |
913 | return start_socket_client(argv[argc-1], p+2, | |
914 | argc-1, argv); | |
915 | } | |
916 | p++; | |
917 | daemon_over_rsh = 1; | |
a125c82a | 918 | } |
a125c82a | 919 | |
d9c7edf6 WD |
920 | if (argc < 2) { |
921 | usage(FERROR); | |
922 | exit_cleanup(RERR_SYNTAX); | |
75aeac44 | 923 | } |
3591c066 | 924 | |
d9c7edf6 WD |
925 | if (local_server) { |
926 | shell_machine = NULL; | |
927 | shell_path = argv[argc-1]; | |
928 | } else { | |
929 | *p = 0; | |
930 | shell_machine = argv[argc-1]; | |
931 | shell_path = p+1; | |
932 | } | |
5d6bcd44 | 933 | } |
d16c245f WD |
934 | argc--; |
935 | } else { /* read_batch */ | |
d9c7edf6 WD |
936 | local_server = 1; |
937 | shell_path = argv[argc-1]; | |
b9f592fb WD |
938 | if (find_colon(shell_path)) { |
939 | rprintf(FERROR, "remote destination is not allowed with --read-batch\n"); | |
940 | exit_cleanup(RERR_SYNTAX); | |
941 | } | |
6902ed17 MP |
942 | } |
943 | ||
5d6bcd44 | 944 | if (shell_machine) { |
6fc048f4 | 945 | p = strrchr(shell_machine,'@'); |
5d6bcd44 AT |
946 | if (p) { |
947 | *p = 0; | |
948 | shell_user = shell_machine; | |
949 | shell_machine = p+1; | |
950 | } | |
951 | } | |
952 | ||
953 | if (verbose > 3) { | |
9486289c | 954 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
5d6bcd44 AT |
955 | shell_cmd?shell_cmd:"", |
956 | shell_machine?shell_machine:"", | |
957 | shell_user?shell_user:"", | |
958 | shell_path?shell_path:""); | |
959 | } | |
d9c7edf6 | 960 | |
d16c245f | 961 | /* for remote source, only single dest arg can remain ... */ |
f7632fc6 | 962 | if (!am_sender && argc > 1) { |
5d6bcd44 | 963 | usage(FERROR); |
65417579 | 964 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 965 | } |
27e3e9c9 | 966 | |
d16c245f | 967 | /* ... or no dest at all */ |
48a1ff0d WD |
968 | if (!am_sender && argc == 0) |
969 | list_only |= 1; | |
d9c7edf6 | 970 | |
75aeac44 WD |
971 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
972 | &f_in,&f_out); | |
973 | ||
974 | /* if we're running an rsync server on the remote host over a | |
9af87151 | 975 | * remote shell command, we need to do the RSYNCD protocol first */ |
75aeac44 WD |
976 | if (daemon_over_rsh) { |
977 | int tmpret; | |
978 | tmpret = start_inband_exchange(shell_user, shell_path, | |
979 | f_in, f_out, argc); | |
980 | if (tmpret < 0) | |
981 | return tmpret; | |
982 | } | |
983 | ||
fc8a6b97 AT |
984 | ret = client_run(f_in, f_out, pid, argc, argv); |
985 | ||
986 | fflush(stdout); | |
987 | fflush(stderr); | |
988 | ||
989 | return ret; | |
5d6bcd44 AT |
990 | } |
991 | ||
366345fe | 992 | |
067669da WD |
993 | static RETSIGTYPE sigusr1_handler(UNUSED(int val)) |
994 | { | |
65417579 | 995 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
996 | } |
997 | ||
067669da WD |
998 | static RETSIGTYPE sigusr2_handler(UNUSED(int val)) |
999 | { | |
19b27a48 | 1000 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
1001 | _exit(0); |
1002 | } | |
1003 | ||
067669da WD |
1004 | static RETSIGTYPE sigchld_handler(UNUSED(int val)) |
1005 | { | |
029c1713 | 1006 | #ifdef WNOHANG |
ee7118a8 DD |
1007 | int cnt, status; |
1008 | pid_t pid; | |
1009 | /* An empty waitpid() loop was put here by Tridge and we could never | |
d9c7edf6 | 1010 | * get him to explain why he put it in, so rather than taking it |
ee7118a8 DD |
1011 | * out we're instead saving the child exit statuses for later use. |
1012 | * The waitpid() loop presumably eliminates all possibility of leaving | |
1013 | * zombie children, maybe that's why he did it. | |
1014 | */ | |
1015 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
9af87151 WD |
1016 | /* save the child's exit status */ |
1017 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
1018 | if (pid_stat_table[cnt].pid == 0) { | |
1019 | pid_stat_table[cnt].pid = pid; | |
1020 | pid_stat_table[cnt].status = status; | |
1021 | break; | |
1022 | } | |
1023 | } | |
ee7118a8 | 1024 | } |
029c1713 | 1025 | #endif |
19b27a48 AT |
1026 | } |
1027 | ||
c0531332 MP |
1028 | |
1029 | /** | |
1030 | * This routine catches signals and tries to send them to gdb. | |
1031 | * | |
1032 | * Because it's called from inside a signal handler it ought not to | |
1033 | * use too many library routines. | |
1034 | * | |
1035 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
1036 | * debugging without easy access to X. Perhaps use an environment | |
1037 | * variable, or just call a script? | |
1038 | * | |
1039 | * @todo The /proc/ magic probably only works on Linux (and | |
1040 | * Solaris?) Can we be more portable? | |
1041 | **/ | |
1042 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
1043 | const char *get_panic_action(void) |
1044 | { | |
1045 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
1046 | ||
1047 | if (cmd_fmt) | |
1048 | return cmd_fmt; | |
1049 | else | |
1050 | return "xterm -display :0 -T Panic -n Panic " | |
1051 | "-e gdb /proc/%d/exe %d"; | |
1052 | } | |
1053 | ||
1054 | ||
9fb3f7a9 MP |
1055 | /** |
1056 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
1057 | * | |
1058 | * This signal handler is only installed if we were configured with | |
1059 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
1060 | * should just look at the environment variable, but I'm a bit leery | |
1061 | * of a signal sending us into a busy loop. | |
1062 | **/ | |
067669da | 1063 | static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig)) |
c0531332 MP |
1064 | { |
1065 | char cmd_buf[300]; | |
1066 | int ret; | |
4fdc39dd MP |
1067 | |
1068 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
1069 | getpid(), getpid()); |
1070 | ||
1071 | /* Unless we failed to execute gdb, we allow the process to | |
1072 | * continue. I'm not sure if that's right. */ | |
1073 | ret = system(cmd_buf); | |
1074 | if (ret) | |
1075 | _exit(ret); | |
1076 | } | |
1077 | #endif | |
1078 | ||
1079 | ||
5d6bcd44 | 1080 | int main(int argc,char *argv[]) |
d9c7edf6 | 1081 | { |
ff81e809 | 1082 | int ret; |
66a9dc96 WD |
1083 | int orig_argc = argc; |
1084 | char **orig_argv = argv; | |
5d6bcd44 | 1085 | |
7a6421fa | 1086 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 1087 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 1088 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
1089 | #ifdef MAINTAINER_MODE |
1090 | signal(SIGSEGV, rsync_panic_handler); | |
1091 | signal(SIGFPE, rsync_panic_handler); | |
1092 | signal(SIGABRT, rsync_panic_handler); | |
1093 | signal(SIGBUS, rsync_panic_handler); | |
1094 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 1095 | |
7a6421fa | 1096 | starttime = time(NULL); |
6fe05820 | 1097 | am_root = (MY_UID() == 0); |
c627d613 | 1098 | |
a800434a AT |
1099 | memset(&stats, 0, sizeof(stats)); |
1100 | ||
df5e03da AT |
1101 | if (argc < 2) { |
1102 | usage(FERROR); | |
65417579 | 1103 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
1104 | } |
1105 | ||
7a6421fa | 1106 | /* we set a 0 umask so that correct file permissions can be |
9af87151 | 1107 | * carried across */ |
7a6421fa | 1108 | orig_umask = (int)umask(0); |
5d6bcd44 | 1109 | |
50135767 | 1110 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
d9c7edf6 WD |
1111 | /* FIXME: We ought to call the same error-handling |
1112 | * code here, rather than relying on getopt. */ | |
50135767 | 1113 | option_error(); |
65417579 | 1114 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 1115 | } |
5d6bcd44 | 1116 | |
7a6421fa | 1117 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 1118 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 1119 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 1120 | |
34758d5c MP |
1121 | /* Ignore SIGPIPE; we consistently check error codes and will |
1122 | * see the EPIPE. */ | |
1123 | signal(SIGPIPE, SIG_IGN); | |
1124 | ||
c226b7c2 | 1125 | /* Initialize push_dir here because on some old systems getcwd |
9af87151 WD |
1126 | * (implemented by forking "pwd" and reading its output) doesn't |
1127 | * work when there are other child processes. Also, on all systems | |
1128 | * that implement getcwd that way "pwd" can't be found after chroot. */ | |
59187666 | 1129 | push_dir(NULL); |
c226b7c2 | 1130 | |
44e9e221 WD |
1131 | init_flist(); |
1132 | ||
b9f592fb WD |
1133 | if (write_batch || read_batch) { |
1134 | if (write_batch) | |
66a9dc96 | 1135 | write_batch_shell_file(orig_argc, orig_argv, argc); |
b9f592fb | 1136 | |
dbbab0c4 WD |
1137 | if (read_batch && strcmp(batch_name, "-") == 0) |
1138 | batch_fd = STDIN_FILENO; | |
1139 | else { | |
1140 | batch_fd = do_open(batch_name, | |
b9f592fb WD |
1141 | write_batch ? O_WRONLY | O_CREAT | O_TRUNC |
1142 | : O_RDONLY, S_IRUSR | S_IWUSR); | |
dbbab0c4 | 1143 | } |
b9f592fb WD |
1144 | if (batch_fd < 0) { |
1145 | rsyserr(FERROR, errno, "Batch file %s open error", | |
9b3318b0 | 1146 | batch_name); |
b9f592fb WD |
1147 | exit_cleanup(RERR_FILEIO); |
1148 | } | |
9459290a WD |
1149 | if (read_batch) |
1150 | read_stream_flags(batch_fd); | |
6902ed17 MP |
1151 | } |
1152 | ||
75aeac44 | 1153 | if (am_daemon && !am_server) |
7a6421fa | 1154 | return daemon_main(); |
f0fca04e | 1155 | |
08ac228f AT |
1156 | if (argc < 1) { |
1157 | usage(FERROR); | |
65417579 | 1158 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1159 | } |
1160 | ||
7a6421fa AT |
1161 | if (dry_run) |
1162 | verbose = MAX(verbose,1); | |
c627d613 | 1163 | |
7a6421fa | 1164 | if (am_server) { |
f0359dd0 AT |
1165 | set_nonblocking(STDIN_FILENO); |
1166 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1167 | if (am_daemon) |
1168 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1169 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1170 | } | |
c627d613 | 1171 | |
ff81e809 | 1172 | ret = start_client(argc, argv); |
d9c7edf6 | 1173 | if (ret == -1) |
9098bbf3 | 1174 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1175 | else |
9098bbf3 MP |
1176 | exit_cleanup(ret); |
1177 | ||
0f5a04e3 | 1178 | return ret; |
c627d613 | 1179 | } |