Commit | Line | Data |
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0ba48136 MP |
1 | /* -*- c-file-style: "linux" -*- |
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> |
c627d613 AT |
6 | |
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. | |
11 | ||
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. | |
16 | ||
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; |
7a6421fa | 27 | extern int verbose; |
c627d613 | 28 | |
e5a2b854 | 29 | static void show_malloc_stats(void); |
82980a23 AT |
30 | |
31 | /**************************************************************************** | |
32 | wait for a process to exit, calling io_flush while waiting | |
33 | ****************************************************************************/ | |
34 | void wait_process(pid_t pid, int *status) | |
35 | { | |
36 | while (waitpid(pid, status, WNOHANG) == 0) { | |
a24c6870 | 37 | msleep(20); |
82980a23 AT |
38 | io_flush(); |
39 | } | |
50135767 MP |
40 | |
41 | /* TODO: If the child exited on a signal, then log an | |
42 | * appropriate error message. Perhaps we should also accept a | |
43 | * message describing the purpose of the child. Also indicate | |
44 | * this to the caller so that thhey know something went | |
45 | * wrong. */ | |
82980a23 AT |
46 | *status = WEXITSTATUS(*status); |
47 | } | |
48 | ||
c627d613 AT |
49 | static void report(int f) |
50 | { | |
7a6421fa AT |
51 | time_t t = time(NULL); |
52 | extern int am_server; | |
53 | extern int am_sender; | |
248fbb8c | 54 | extern int am_daemon; |
a800434a | 55 | extern int do_stats; |
17d31b38 DD |
56 | extern int remote_version; |
57 | int send_stats; | |
7a6421fa | 58 | |
5c15e29f MP |
59 | if (do_stats) { |
60 | /* These come out from every process */ | |
61 | show_malloc_stats(); | |
86943126 | 62 | show_flist_stats(); |
5c15e29f MP |
63 | } |
64 | ||
248fbb8c | 65 | if (am_daemon) { |
a9766ef1 | 66 | log_exit(0, __FILE__, __LINE__); |
7b372642 | 67 | if (f == -1 || !am_sender) return; |
248fbb8c AT |
68 | } |
69 | ||
ebb00c8e | 70 | send_stats = verbose || (remote_version >= 20); |
e19452a9 | 71 | if (am_server) { |
17d31b38 | 72 | if (am_sender && send_stats) { |
23c5aef1 DD |
73 | int64 w; |
74 | /* store total_written in a temporary | |
75 | because write_longint changes it */ | |
76 | w = stats.total_written; | |
e19452a9 | 77 | write_longint(f,stats.total_read); |
23c5aef1 | 78 | write_longint(f,w); |
e19452a9 DD |
79 | write_longint(f,stats.total_size); |
80 | } | |
7a6421fa AT |
81 | return; |
82 | } | |
e19452a9 DD |
83 | |
84 | /* this is the client */ | |
85 | ||
17d31b38 | 86 | if (!am_sender && send_stats) { |
23c5aef1 | 87 | int64 r; |
a800434a | 88 | stats.total_written = read_longint(f); |
23c5aef1 DD |
89 | /* store total_read in a temporary, read_longint changes it */ |
90 | r = read_longint(f); | |
a800434a | 91 | stats.total_size = read_longint(f); |
23c5aef1 | 92 | stats.total_read = r; |
a800434a AT |
93 | } |
94 | ||
95 | if (do_stats) { | |
17d31b38 DD |
96 | if (!am_sender && !send_stats) { |
97 | /* missing the bytes written by the generator */ | |
ebb00c8e | 98 | rprintf(FINFO, "\nCannot show stats as receiver because remote protocol version is less than 20\n"); |
17d31b38 DD |
99 | rprintf(FINFO, "Use --stats -v to show stats\n"); |
100 | return; | |
101 | } | |
1f658d42 AT |
102 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
103 | rprintf(FINFO,"Number of files transferred: %d\n", | |
a800434a | 104 | stats.num_transferred_files); |
1f658d42 | 105 | rprintf(FINFO,"Total file size: %.0f bytes\n", |
a800434a | 106 | (double)stats.total_size); |
1f658d42 | 107 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", |
a800434a | 108 | (double)stats.total_transferred_size); |
1f658d42 | 109 | rprintf(FINFO,"Literal data: %.0f bytes\n", |
a800434a | 110 | (double)stats.literal_data); |
1f658d42 | 111 | rprintf(FINFO,"Matched data: %.0f bytes\n", |
a800434a | 112 | (double)stats.matched_data); |
1f658d42 AT |
113 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
114 | rprintf(FINFO,"Total bytes written: %.0f\n", | |
a800434a | 115 | (double)stats.total_written); |
1f658d42 | 116 | rprintf(FINFO,"Total bytes read: %.0f\n\n", |
a800434a | 117 | (double)stats.total_read); |
7a6421fa AT |
118 | } |
119 | ||
e19452a9 DD |
120 | if (verbose || do_stats) { |
121 | rprintf(FINFO,"wrote %.0f bytes read %.0f bytes %.2f bytes/sec\n", | |
122 | (double)stats.total_written, | |
123 | (double)stats.total_read, | |
124 | (stats.total_written+stats.total_read)/(0.5 + (t-starttime))); | |
125 | rprintf(FINFO,"total size is %.0f speedup is %.2f\n", | |
126 | (double)stats.total_size, | |
127 | (1.0*stats.total_size)/(stats.total_written+stats.total_read)); | |
128 | } | |
fc8a6b97 AT |
129 | |
130 | fflush(stdout); | |
131 | fflush(stderr); | |
c627d613 AT |
132 | } |
133 | ||
134 | ||
e5a2b854 MP |
135 | /** |
136 | * If our C library can get malloc statistics, then show them to FINFO | |
137 | **/ | |
138 | static void show_malloc_stats(void) | |
139 | { | |
140 | #ifdef HAVE_MALLINFO | |
141 | struct mallinfo mi; | |
5c15e29f MP |
142 | extern int am_server; |
143 | extern int am_sender; | |
144 | extern int am_daemon; | |
e5a2b854 MP |
145 | |
146 | mi = mallinfo(); | |
147 | ||
5c15e29f MP |
148 | rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
149 | getpid(), | |
150 | am_server ? "server " : "", | |
151 | am_daemon ? "daemon " : "", | |
152 | am_sender ? "sender" : "receiver"); | |
e5a2b854 MP |
153 | rprintf(FINFO, " arena: %10d (bytes from sbrk)\n", mi.arena); |
154 | rprintf(FINFO, " ordblks: %10d (chunks not in use)\n", mi.ordblks); | |
155 | rprintf(FINFO, " smblks: %10d\n", mi.smblks); | |
156 | rprintf(FINFO, " hblks: %10d (chunks from mmap)\n", mi.hblks); | |
157 | rprintf(FINFO, " hblkhd: %10d (bytes from mmap)\n", mi.hblkhd); | |
158 | rprintf(FINFO, " usmblks: %10d\n", mi.usmblks); | |
159 | rprintf(FINFO, " fsmblks: %10d\n", mi.fsmblks); | |
160 | rprintf(FINFO, " uordblks: %10d (bytes used)\n", mi.uordblks); | |
161 | rprintf(FINFO, " fordblks: %10d (bytes free)\n", mi.fordblks); | |
162 | rprintf(FINFO, " keepcost: %10d (bytes in releasable chunk)\n", mi.keepcost); | |
163 | #endif /* HAVE_MALLINFO */ | |
164 | } | |
165 | ||
166 | ||
0882faa2 | 167 | /* Start the remote shell. cmd may be NULL to use the default. */ |
19b27a48 | 168 | static pid_t do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out) |
c627d613 | 169 | { |
366345fe | 170 | char *args[100]; |
19b27a48 AT |
171 | int i,argc=0; |
172 | pid_t ret; | |
366345fe | 173 | char *tok,*dir=NULL; |
7a6421fa AT |
174 | extern int local_server; |
175 | extern char *rsync_path; | |
e384bfbd | 176 | extern int blocking_io; |
6902ed17 | 177 | extern int read_batch; |
366345fe | 178 | |
088aac85 | 179 | if (!read_batch && !local_server) { |
366345fe AT |
180 | if (!cmd) |
181 | cmd = getenv(RSYNC_RSH_ENV); | |
182 | if (!cmd) | |
183 | cmd = RSYNC_RSH; | |
184 | cmd = strdup(cmd); | |
185 | if (!cmd) | |
186 | goto oom; | |
187 | ||
188 | for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) { | |
189 | args[argc++] = tok; | |
190 | } | |
c627d613 | 191 | |
7b8356d0 | 192 | #if HAVE_REMSH |
366345fe AT |
193 | /* remsh (on HPUX) takes the arguments the other way around */ |
194 | args[argc++] = machine; | |
195 | if (user) { | |
196 | args[argc++] = "-l"; | |
197 | args[argc++] = user; | |
198 | } | |
7b8356d0 | 199 | #else |
366345fe AT |
200 | if (user) { |
201 | args[argc++] = "-l"; | |
202 | args[argc++] = user; | |
203 | } | |
204 | args[argc++] = machine; | |
7b8356d0 | 205 | #endif |
c627d613 | 206 | |
366345fe | 207 | args[argc++] = rsync_path; |
c627d613 | 208 | |
93689aa5 DD |
209 | if ((blocking_io == -1) && (strcmp(cmd, RSYNC_RSH) == 0)) |
210 | blocking_io = 1; | |
e384bfbd | 211 | |
93689aa5 | 212 | server_options(args,&argc); |
e384bfbd | 213 | |
366345fe | 214 | } |
c627d613 | 215 | |
366345fe | 216 | args[argc++] = "."; |
76076c4b | 217 | |
366345fe AT |
218 | if (path && *path) |
219 | args[argc++] = path; | |
c627d613 | 220 | |
366345fe | 221 | args[argc] = NULL; |
c627d613 | 222 | |
366345fe | 223 | if (verbose > 3) { |
9486289c | 224 | rprintf(FINFO,"cmd="); |
366345fe | 225 | for (i=0;i<argc;i++) |
9486289c AT |
226 | rprintf(FINFO,"%s ",args[i]); |
227 | rprintf(FINFO,"\n"); | |
366345fe AT |
228 | } |
229 | ||
230 | if (local_server) { | |
6902ed17 | 231 | if (read_batch) |
088aac85 | 232 | create_flist_from_batch(); /* sets batch_flist */ |
25d34a5c | 233 | ret = local_child(argc, args, f_in, f_out, child_main); |
366345fe AT |
234 | } else { |
235 | ret = piped_child(args,f_in,f_out); | |
236 | } | |
c627d613 | 237 | |
366345fe | 238 | if (dir) free(dir); |
82306bf6 | 239 | |
366345fe | 240 | return ret; |
c627d613 AT |
241 | |
242 | oom: | |
366345fe AT |
243 | out_of_memory("do_cmd"); |
244 | return 0; /* not reached */ | |
c627d613 AT |
245 | } |
246 | ||
247 | ||
248 | ||
249 | ||
250 | static char *get_local_name(struct file_list *flist,char *name) | |
251 | { | |
7a6421fa AT |
252 | STRUCT_STAT st; |
253 | extern int orig_umask; | |
c627d613 | 254 | |
c95da96a AT |
255 | if (verbose > 2) |
256 | rprintf(FINFO,"get_local_name count=%d %s\n", | |
1f0610ef DD |
257 | flist->count, NS(name)); |
258 | ||
259 | if (!name) | |
260 | return NULL; | |
c95da96a | 261 | |
1ff5450d AT |
262 | if (do_stat(name,&st) == 0) { |
263 | if (S_ISDIR(st.st_mode)) { | |
5243c216 AT |
264 | if (!push_dir(name, 0)) { |
265 | rprintf(FERROR,"push_dir %s : %s (1)\n", | |
1ff5450d | 266 | name,strerror(errno)); |
65417579 | 267 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
268 | } |
269 | return NULL; | |
270 | } | |
271 | if (flist->count > 1) { | |
272 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 273 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
274 | } |
275 | return name; | |
276 | } | |
277 | ||
cec8aa77 | 278 | if (flist->count <= 1) |
1ff5450d AT |
279 | return name; |
280 | ||
1ff5450d | 281 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
b84ba896 MP |
282 | rprintf(FERROR, RSYNC_NAME ": mkdir %s: %s\n", |
283 | name, strerror(errno)); | |
65417579 | 284 | exit_cleanup(RERR_FILEIO); |
1ff5450d | 285 | } else { |
b536f47e AT |
286 | if (verbose > 0) |
287 | rprintf(FINFO,"created directory %s\n",name); | |
1ff5450d AT |
288 | } |
289 | ||
5243c216 | 290 | if (!push_dir(name, 0)) { |
b84ba896 MP |
291 | rprintf(FERROR, RSYNC_NAME ": push_dir %s: %s\n", |
292 | name, strerror(errno)); | |
65417579 | 293 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
294 | } |
295 | ||
296 | return NULL; | |
c627d613 AT |
297 | } |
298 | ||
299 | ||
300 | ||
301 | ||
9486289c | 302 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 303 | { |
7a6421fa AT |
304 | int i; |
305 | struct file_list *flist; | |
306 | char *dir = argv[0]; | |
307 | extern int relative_paths; | |
7a6421fa | 308 | extern int recurse; |
adc19c98 | 309 | extern int remote_version; |
c627d613 | 310 | |
7a6421fa AT |
311 | if (verbose > 2) |
312 | rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); | |
c627d613 | 313 | |
5243c216 AT |
314 | if (!relative_paths && !push_dir(dir, 0)) { |
315 | rprintf(FERROR,"push_dir %s: %s (3)\n",dir,strerror(errno)); | |
65417579 | 316 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
317 | } |
318 | argc--; | |
319 | argv++; | |
c627d613 | 320 | |
7a6421fa AT |
321 | if (strcmp(dir,".")) { |
322 | int l = strlen(dir); | |
323 | if (strcmp(dir,"/") == 0) | |
324 | l = 0; | |
325 | for (i=0;i<argc;i++) | |
326 | argv[i] += l+1; | |
327 | } | |
c627d613 | 328 | |
7a6421fa AT |
329 | if (argc == 0 && recurse) { |
330 | argc=1; | |
331 | argv--; | |
332 | argv[0] = "."; | |
333 | } | |
334 | ||
7a6421fa | 335 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
336 | if (!flist || flist->count == 0) { |
337 | exit_cleanup(0); | |
338 | } | |
339 | ||
7a6421fa | 340 | send_files(flist,f_out,f_in); |
3d382777 | 341 | io_flush(); |
7a6421fa | 342 | report(f_out); |
adc19c98 AT |
343 | if (remote_version >= 24) { |
344 | /* final goodbye message */ | |
345 | read_int(f_in); | |
346 | } | |
8d9dc9f9 | 347 | io_flush(); |
7a6421fa | 348 | exit_cleanup(0); |
c627d613 AT |
349 | } |
350 | ||
351 | ||
dc5ddbcc AT |
352 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
353 | { | |
d186eb1a AT |
354 | int pid; |
355 | int status=0; | |
356 | int recv_pipe[2]; | |
554e0a8d | 357 | int error_pipe[2]; |
d186eb1a | 358 | extern int preserve_hard_links; |
6957ae33 AT |
359 | extern int delete_after; |
360 | extern int recurse; | |
361 | extern int delete_mode; | |
8ada7518 | 362 | extern int remote_version; |
dc5ddbcc | 363 | |
d186eb1a AT |
364 | if (preserve_hard_links) |
365 | init_hard_links(flist); | |
dc5ddbcc | 366 | |
6957ae33 AT |
367 | if (!delete_after) { |
368 | /* I moved this here from recv_files() to prevent a race condition */ | |
369 | if (recurse && delete_mode && !local_name && flist->count>0) { | |
370 | delete_files(flist); | |
371 | } | |
372 | } | |
373 | ||
08f15335 | 374 | if (fd_pair(recv_pipe) < 0) { |
d186eb1a | 375 | rprintf(FERROR,"pipe failed in do_recv\n"); |
65417579 | 376 | exit_cleanup(RERR_SOCKETIO); |
d186eb1a | 377 | } |
554e0a8d | 378 | |
08f15335 | 379 | if (fd_pair(error_pipe) < 0) { |
554e0a8d AT |
380 | rprintf(FERROR,"error pipe failed in do_recv\n"); |
381 | exit_cleanup(RERR_SOCKETIO); | |
382 | } | |
c6e7fcb4 | 383 | |
8d9dc9f9 | 384 | io_flush(); |
c6e7fcb4 | 385 | |
d186eb1a | 386 | if ((pid=do_fork()) == 0) { |
e08c9610 | 387 | close(recv_pipe[0]); |
554e0a8d | 388 | close(error_pipe[0]); |
e08c9610 AT |
389 | if (f_in != f_out) close(f_out); |
390 | ||
554e0a8d AT |
391 | /* we can't let two processes write to the socket at one time */ |
392 | io_multiplexing_close(); | |
393 | ||
394 | /* set place to send errors */ | |
395 | set_error_fd(error_pipe[1]); | |
396 | ||
e08c9610 | 397 | recv_files(f_in,flist,local_name,recv_pipe[1]); |
3d382777 | 398 | io_flush(); |
ba5e128d | 399 | report(f_in); |
e08c9610 | 400 | |
8b35435f AT |
401 | write_int(recv_pipe[1],1); |
402 | close(recv_pipe[1]); | |
8d9dc9f9 | 403 | io_flush(); |
4a748188 | 404 | /* finally we go to sleep until our parent kills us |
27e3e9c9 | 405 | with a USR2 signal. We sleep for a short time as on |
4a748188 | 406 | some OSes a signal won't interrupt a sleep! */ |
e1bd49d6 MP |
407 | while (msleep(20)) |
408 | ; | |
d186eb1a | 409 | } |
dc5ddbcc | 410 | |
e08c9610 | 411 | close(recv_pipe[1]); |
554e0a8d | 412 | close(error_pipe[1]); |
e08c9610 | 413 | if (f_in != f_out) close(f_in); |
e1b3d5c4 | 414 | |
b3e10ed7 AT |
415 | io_start_buffering(f_out); |
416 | ||
554e0a8d AT |
417 | io_set_error_fd(error_pipe[0]); |
418 | ||
e08c9610 | 419 | generate_files(f_out,flist,local_name,recv_pipe[0]); |
8d9dc9f9 | 420 | |
8b35435f AT |
421 | read_int(recv_pipe[0]); |
422 | close(recv_pipe[0]); | |
8ada7518 AT |
423 | if (remote_version >= 24) { |
424 | /* send a final goodbye message */ | |
425 | write_int(f_out, -1); | |
426 | } | |
8d9dc9f9 | 427 | io_flush(); |
8ada7518 | 428 | |
8b35435f | 429 | kill(pid, SIGUSR2); |
d79d1c69 | 430 | wait_process(pid, &status); |
d186eb1a | 431 | return status; |
dc5ddbcc AT |
432 | } |
433 | ||
c627d613 | 434 | |
9486289c | 435 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 436 | { |
7a6421fa AT |
437 | int status; |
438 | struct file_list *flist; | |
439 | char *local_name=NULL; | |
440 | char *dir = NULL; | |
441 | extern int delete_mode; | |
b33b791e | 442 | extern int delete_excluded; |
7a6421fa | 443 | extern int am_daemon; |
09b7f5db AT |
444 | extern int module_id; |
445 | extern int am_sender; | |
088aac85 DD |
446 | extern int read_batch; |
447 | extern struct file_list *batch_flist; | |
f0fca04e | 448 | |
7a6421fa AT |
449 | if (verbose > 2) |
450 | rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid()); | |
09b7f5db AT |
451 | |
452 | if (am_daemon && lp_read_only(module_id) && !am_sender) { | |
453 | rprintf(FERROR,"ERROR: module is read only\n"); | |
454 | exit_cleanup(RERR_SYNTAX); | |
455 | return; | |
456 | } | |
457 | ||
7a6421fa | 458 | |
7a6421fa AT |
459 | if (argc > 0) { |
460 | dir = argv[0]; | |
461 | argc--; | |
462 | argv++; | |
5243c216 AT |
463 | if (!am_daemon && !push_dir(dir, 0)) { |
464 | rprintf(FERROR,"push_dir %s : %s (4)\n", | |
7a6421fa | 465 | dir,strerror(errno)); |
65417579 | 466 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
467 | } |
468 | } | |
c627d613 | 469 | |
b33b791e | 470 | if (delete_mode && !delete_excluded) |
7a6421fa | 471 | recv_exclude_list(f_in); |
c627d613 | 472 | |
088aac85 | 473 | if (read_batch) |
6902ed17 MP |
474 | flist = batch_flist; |
475 | else | |
476 | flist = recv_file_list(f_in); | |
4c36a13e AT |
477 | if (!flist) { |
478 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 479 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
480 | } |
481 | ||
482 | if (argc > 0) { | |
483 | if (strcmp(dir,".")) { | |
484 | argv[0] += strlen(dir); | |
485 | if (argv[0][0] == '/') argv[0]++; | |
486 | } | |
487 | local_name = get_local_name(flist,argv[0]); | |
488 | } | |
c627d613 | 489 | |
7a6421fa AT |
490 | status = do_recv(f_in,f_out,flist,local_name); |
491 | exit_cleanup(status); | |
c627d613 AT |
492 | } |
493 | ||
494 | ||
734a94a2 | 495 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
496 | { |
497 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 498 | return 0; |
25d34a5c MP |
499 | } |
500 | ||
501 | ||
9486289c | 502 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 503 | { |
7a6421fa AT |
504 | extern int cvs_exclude; |
505 | extern int am_sender; | |
ff41a59f | 506 | extern int remote_version; |
088aac85 | 507 | extern int read_batch; |
ff41a59f | 508 | |
6d7b6081 AT |
509 | setup_protocol(f_out, f_in); |
510 | ||
f0359dd0 AT |
511 | set_nonblocking(f_in); |
512 | set_nonblocking(f_out); | |
513 | ||
ff41a59f AT |
514 | if (remote_version >= 23) |
515 | io_start_multiplex_out(f_out); | |
7a6421fa | 516 | |
7a6421fa | 517 | if (am_sender) { |
088aac85 | 518 | if (!read_batch) { |
6902ed17 MP |
519 | recv_exclude_list(f_in); |
520 | if (cvs_exclude) | |
7a6421fa | 521 | add_cvs_excludes(); |
6902ed17 | 522 | } |
7a6421fa AT |
523 | do_server_sender(f_in, f_out, argc, argv); |
524 | } else { | |
525 | do_server_recv(f_in, f_out, argc, argv); | |
526 | } | |
527 | exit_cleanup(0); | |
366345fe AT |
528 | } |
529 | ||
0ba48136 MP |
530 | |
531 | /* | |
532 | * This is called once the connection has been negotiated. It is used | |
533 | * for rsyncd, remote-shell, and local connections. | |
534 | */ | |
19b27a48 | 535 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 536 | { |
088aac85 | 537 | struct file_list *flist = NULL; |
9486289c AT |
538 | int status = 0, status2 = 0; |
539 | char *local_name = NULL; | |
7a6421fa | 540 | extern int am_sender; |
ff41a59f | 541 | extern int remote_version; |
19b27a48 | 542 | extern pid_t cleanup_child_pid; |
088aac85 DD |
543 | extern int write_batch; |
544 | extern int read_batch; | |
545 | extern struct file_list *batch_flist; | |
19b27a48 AT |
546 | |
547 | cleanup_child_pid = pid; | |
6902ed17 | 548 | if (read_batch) |
088aac85 | 549 | flist = batch_flist; |
ff41a59f | 550 | |
f0359dd0 AT |
551 | set_nonblocking(f_in); |
552 | set_nonblocking(f_out); | |
553 | ||
6d7b6081 AT |
554 | setup_protocol(f_out,f_in); |
555 | ||
ff41a59f AT |
556 | if (remote_version >= 23) |
557 | io_start_multiplex_in(f_in); | |
9486289c AT |
558 | |
559 | if (am_sender) { | |
7a6421fa AT |
560 | extern int cvs_exclude; |
561 | extern int delete_mode; | |
b33b791e | 562 | extern int delete_excluded; |
9486289c AT |
563 | if (cvs_exclude) |
564 | add_cvs_excludes(); | |
b33b791e | 565 | if (delete_mode && !delete_excluded) |
9486289c | 566 | send_exclude_list(f_out); |
6902ed17 MP |
567 | if (!read_batch) /* dw -- don't write to pipe */ |
568 | flist = send_file_list(f_out,argc,argv); | |
9486289c AT |
569 | if (verbose > 3) |
570 | rprintf(FINFO,"file list sent\n"); | |
e1b3d5c4 | 571 | |
9486289c | 572 | send_files(flist,f_out,f_in); |
6c65e146 AT |
573 | if (remote_version >= 24) { |
574 | /* final goodbye message */ | |
575 | read_int(f_in); | |
576 | } | |
9486289c AT |
577 | if (pid != -1) { |
578 | if (verbose > 3) | |
08a740ff | 579 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
8d9dc9f9 | 580 | io_flush(); |
d79d1c69 | 581 | wait_process(pid, &status); |
9486289c | 582 | } |
3d382777 | 583 | report(-1); |
9486289c AT |
584 | exit_cleanup(status); |
585 | } | |
f7632fc6 | 586 | |
27e3e9c9 AT |
587 | if (argc == 0) { |
588 | extern int list_only; | |
589 | list_only = 1; | |
590 | } | |
9486289c | 591 | |
088aac85 | 592 | if (!write_batch) |
6902ed17 | 593 | send_exclude_list(f_out); |
9486289c AT |
594 | |
595 | flist = recv_file_list(f_in); | |
596 | if (!flist || flist->count == 0) { | |
796d484b MP |
597 | rprintf(FINFO, "client: nothing to do: " |
598 | "perhaps you need to specify some filenames or " | |
599 | "the --recursive option?\n"); | |
9486289c AT |
600 | exit_cleanup(0); |
601 | } | |
602 | ||
603 | local_name = get_local_name(flist,argv[0]); | |
604 | ||
605 | status2 = do_recv(f_in,f_out,flist,local_name); | |
606 | ||
9486289c | 607 | if (pid != -1) { |
8d9dc9f9 | 608 | if (verbose > 3) |
08a740ff | 609 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
8d9dc9f9 | 610 | io_flush(); |
d79d1c69 | 611 | wait_process(pid, &status); |
9486289c AT |
612 | } |
613 | ||
ff81e809 | 614 | return MAX(status, status2); |
9486289c AT |
615 | } |
616 | ||
ca6c93f8 AT |
617 | static char *find_colon(char *s) |
618 | { | |
619 | char *p, *p2; | |
620 | ||
621 | p = strchr(s,':'); | |
622 | if (!p) return NULL; | |
623 | ||
624 | /* now check to see if there is a / in the string before the : - if there is then | |
625 | discard the colon on the assumption that the : is part of a filename */ | |
626 | p2 = strchr(s,'/'); | |
627 | if (p2 && p2 < p) return NULL; | |
628 | ||
629 | return p; | |
630 | } | |
9486289c | 631 | |
0ba48136 | 632 | |
7169bb4a MP |
633 | static int copy_argv (char *argv[]) |
634 | { | |
635 | int i; | |
636 | ||
637 | for (i = 0; argv[i]; i++) { | |
638 | if (!(argv[i] = strdup(argv[i]))) { | |
639 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
640 | __FILE__, __LINE__); | |
641 | return RERR_MALLOC; | |
642 | } | |
643 | } | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
648 | ||
c1a04ecb | 649 | /** |
0ba48136 MP |
650 | * Start a client for either type of remote connection. Work out |
651 | * whether the arguments request a remote shell or rsyncd connection, | |
652 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
653 | * |
654 | * Calls either start_socket_client (for sockets) or do_cmd and | |
655 | * client_run (for ssh). | |
c1a04ecb | 656 | **/ |
fc8a6b97 | 657 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
658 | { |
659 | char *p; | |
660 | char *shell_machine = NULL; | |
661 | char *shell_path = NULL; | |
662 | char *shell_user = NULL; | |
19b27a48 AT |
663 | int ret; |
664 | pid_t pid; | |
5d6bcd44 | 665 | int f_in,f_out; |
7a6421fa AT |
666 | extern int local_server; |
667 | extern int am_sender; | |
668 | extern char *shell_cmd; | |
2acf81eb | 669 | extern int rsync_port; |
6902ed17 | 670 | extern int read_batch; |
7169bb4a MP |
671 | int rc; |
672 | ||
673 | /* Don't clobber argv[] so that ps(1) can still show the right | |
674 | command line. */ | |
675 | if ((rc = copy_argv (argv))) | |
676 | return rc; | |
5d6bcd44 | 677 | |
7169bb4a | 678 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) { |
f7632fc6 AT |
679 | char *host, *path; |
680 | ||
7169bb4a | 681 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
682 | p = strchr(host,'/'); |
683 | if (p) { | |
684 | *p = 0; | |
685 | path = p+1; | |
686 | } else { | |
687 | path=""; | |
688 | } | |
2acf81eb DD |
689 | p = strchr(host,':'); |
690 | if (p) { | |
691 | rsync_port = atoi(p+1); | |
692 | *p = 0; | |
693 | } | |
f7632fc6 AT |
694 | return start_socket_client(host, path, argc-1, argv+1); |
695 | } | |
696 | ||
088aac85 | 697 | if (!read_batch) { |
6902ed17 | 698 | p = find_colon(argv[0]); |
5d6bcd44 AT |
699 | |
700 | if (p) { | |
c1a04ecb | 701 | if (p[1] == ':') { /* double colon */ |
9486289c | 702 | *p = 0; |
7169bb4a | 703 | return start_socket_client(argv[0], p+2, argc-1, argv+1); |
9486289c | 704 | } |
3591c066 | 705 | |
f7632fc6 | 706 | if (argc < 1) { |
3591c066 | 707 | usage(FERROR); |
65417579 | 708 | exit_cleanup(RERR_SYNTAX); |
3591c066 AT |
709 | } |
710 | ||
5d6bcd44 AT |
711 | am_sender = 0; |
712 | *p = 0; | |
7169bb4a | 713 | shell_machine = argv[0]; |
5d6bcd44 AT |
714 | shell_path = p+1; |
715 | argc--; | |
716 | argv++; | |
717 | } else { | |
718 | am_sender = 1; | |
9486289c | 719 | |
ca6c93f8 | 720 | p = find_colon(argv[argc-1]); |
5d6bcd44 AT |
721 | if (!p) { |
722 | local_server = 1; | |
9486289c AT |
723 | } else if (p[1] == ':') { |
724 | *p = 0; | |
725 | return start_socket_client(argv[argc-1], p+2, argc-1, argv); | |
5d6bcd44 | 726 | } |
3591c066 AT |
727 | |
728 | if (argc < 2) { | |
729 | usage(FERROR); | |
65417579 | 730 | exit_cleanup(RERR_SYNTAX); |
3591c066 | 731 | } |
9486289c | 732 | |
5d6bcd44 AT |
733 | if (local_server) { |
734 | shell_machine = NULL; | |
735 | shell_path = argv[argc-1]; | |
736 | } else { | |
737 | *p = 0; | |
738 | shell_machine = argv[argc-1]; | |
739 | shell_path = p+1; | |
740 | } | |
741 | argc--; | |
742 | } | |
6902ed17 | 743 | } else { |
088aac85 DD |
744 | am_sender = 1; |
745 | local_server = 1; | |
746 | shell_path = argv[argc-1]; | |
6902ed17 MP |
747 | } |
748 | ||
5d6bcd44 AT |
749 | if (shell_machine) { |
750 | p = strchr(shell_machine,'@'); | |
751 | if (p) { | |
752 | *p = 0; | |
753 | shell_user = shell_machine; | |
754 | shell_machine = p+1; | |
755 | } | |
756 | } | |
757 | ||
758 | if (verbose > 3) { | |
9486289c | 759 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
5d6bcd44 AT |
760 | shell_cmd?shell_cmd:"", |
761 | shell_machine?shell_machine:"", | |
762 | shell_user?shell_user:"", | |
763 | shell_path?shell_path:""); | |
764 | } | |
765 | ||
f7632fc6 | 766 | if (!am_sender && argc > 1) { |
5d6bcd44 | 767 | usage(FERROR); |
65417579 | 768 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 769 | } |
27e3e9c9 AT |
770 | |
771 | if (argc == 0 && !am_sender) { | |
772 | extern int list_only; | |
773 | list_only = 1; | |
774 | } | |
5d6bcd44 AT |
775 | |
776 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,&f_in,&f_out); | |
777 | ||
fc8a6b97 AT |
778 | ret = client_run(f_in, f_out, pid, argc, argv); |
779 | ||
780 | fflush(stdout); | |
781 | fflush(stderr); | |
782 | ||
783 | return ret; | |
5d6bcd44 AT |
784 | } |
785 | ||
366345fe | 786 | |
0f0ea7f7 | 787 | static RETSIGTYPE sigusr1_handler(int UNUSED(val)) { |
65417579 | 788 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
789 | } |
790 | ||
0f0ea7f7 | 791 | static RETSIGTYPE sigusr2_handler(int UNUSED(val)) { |
ff81e809 | 792 | extern int log_got_error; |
19b27a48 | 793 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
794 | _exit(0); |
795 | } | |
796 | ||
0f0ea7f7 | 797 | static RETSIGTYPE sigchld_handler(int UNUSED(val)) { |
029c1713 AT |
798 | #ifdef WNOHANG |
799 | while (waitpid(-1, NULL, WNOHANG) > 0) ; | |
800 | #endif | |
19b27a48 AT |
801 | } |
802 | ||
c0531332 MP |
803 | |
804 | /** | |
805 | * This routine catches signals and tries to send them to gdb. | |
806 | * | |
807 | * Because it's called from inside a signal handler it ought not to | |
808 | * use too many library routines. | |
809 | * | |
810 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
811 | * debugging without easy access to X. Perhaps use an environment | |
812 | * variable, or just call a script? | |
813 | * | |
814 | * @todo The /proc/ magic probably only works on Linux (and | |
815 | * Solaris?) Can we be more portable? | |
816 | **/ | |
817 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
818 | const char *get_panic_action(void) |
819 | { | |
820 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
821 | ||
822 | if (cmd_fmt) | |
823 | return cmd_fmt; | |
824 | else | |
825 | return "xterm -display :0 -T Panic -n Panic " | |
826 | "-e gdb /proc/%d/exe %d"; | |
827 | } | |
828 | ||
829 | ||
9fb3f7a9 MP |
830 | /** |
831 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
832 | * | |
833 | * This signal handler is only installed if we were configured with | |
834 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
835 | * should just look at the environment variable, but I'm a bit leery | |
836 | * of a signal sending us into a busy loop. | |
837 | **/ | |
c0531332 MP |
838 | static RETSIGTYPE rsync_panic_handler(int UNUSED(whatsig)) |
839 | { | |
840 | char cmd_buf[300]; | |
841 | int ret; | |
4fdc39dd MP |
842 | |
843 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
844 | getpid(), getpid()); |
845 | ||
846 | /* Unless we failed to execute gdb, we allow the process to | |
847 | * continue. I'm not sure if that's right. */ | |
848 | ret = system(cmd_buf); | |
849 | if (ret) | |
850 | _exit(ret); | |
851 | } | |
852 | #endif | |
853 | ||
854 | ||
5d6bcd44 | 855 | int main(int argc,char *argv[]) |
7a6421fa AT |
856 | { |
857 | extern int am_root; | |
858 | extern int orig_umask; | |
859 | extern int dry_run; | |
860 | extern int am_daemon; | |
861 | extern int am_server; | |
ff81e809 | 862 | int ret; |
088aac85 DD |
863 | extern int write_batch; |
864 | int orig_argc; | |
76f79ba7 | 865 | char **orig_argv; |
6902ed17 | 866 | |
088aac85 | 867 | orig_argc = argc; |
76f79ba7 | 868 | orig_argv = argv; |
5d6bcd44 | 869 | |
7a6421fa | 870 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 871 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 872 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
873 | #ifdef MAINTAINER_MODE |
874 | signal(SIGSEGV, rsync_panic_handler); | |
875 | signal(SIGFPE, rsync_panic_handler); | |
876 | signal(SIGABRT, rsync_panic_handler); | |
877 | signal(SIGBUS, rsync_panic_handler); | |
878 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 879 | |
7a6421fa AT |
880 | starttime = time(NULL); |
881 | am_root = (getuid() == 0); | |
c627d613 | 882 | |
a800434a AT |
883 | memset(&stats, 0, sizeof(stats)); |
884 | ||
df5e03da AT |
885 | if (argc < 2) { |
886 | usage(FERROR); | |
65417579 | 887 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
888 | } |
889 | ||
7a6421fa AT |
890 | /* we set a 0 umask so that correct file permissions can be |
891 | carried across */ | |
892 | orig_umask = (int)umask(0); | |
5d6bcd44 | 893 | |
50135767 | 894 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
305ab133 MP |
895 | /* FIXME: We ought to call the same error-handling |
896 | * code here, rather than relying on getopt. */ | |
50135767 | 897 | option_error(); |
65417579 | 898 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 899 | } |
5d6bcd44 | 900 | |
7a6421fa | 901 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 902 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 903 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 904 | |
34758d5c MP |
905 | /* Ignore SIGPIPE; we consistently check error codes and will |
906 | * see the EPIPE. */ | |
907 | signal(SIGPIPE, SIG_IGN); | |
908 | ||
c226b7c2 DD |
909 | /* Initialize push_dir here because on some old systems getcwd |
910 | (implemented by forking "pwd" and reading its output) doesn't | |
911 | work when there are other child processes. Also, on all systems | |
912 | that implement getcwd that way "pwd" can't be found after chroot. */ | |
913 | push_dir(NULL,0); | |
914 | ||
088aac85 | 915 | if (write_batch && !am_server) { |
76f79ba7 | 916 | write_batch_argvs_file(orig_argc, orig_argv); |
6902ed17 MP |
917 | } |
918 | ||
7a6421fa AT |
919 | if (am_daemon) { |
920 | return daemon_main(); | |
921 | } | |
f0fca04e | 922 | |
08ac228f AT |
923 | if (argc < 1) { |
924 | usage(FERROR); | |
65417579 | 925 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
926 | } |
927 | ||
7a6421fa AT |
928 | if (dry_run) |
929 | verbose = MAX(verbose,1); | |
c627d613 | 930 | |
cbbe4892 | 931 | #ifndef SUPPORT_LINKS |
7a6421fa AT |
932 | if (!am_server && preserve_links) { |
933 | rprintf(FERROR,"ERROR: symbolic links not supported\n"); | |
65417579 | 934 | exit_cleanup(RERR_UNSUPPORTED); |
7a6421fa | 935 | } |
cbbe4892 AT |
936 | #endif |
937 | ||
7a6421fa | 938 | if (am_server) { |
f0359dd0 AT |
939 | set_nonblocking(STDIN_FILENO); |
940 | set_nonblocking(STDOUT_FILENO); | |
7a6421fa AT |
941 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
942 | } | |
c627d613 | 943 | |
ff81e809 | 944 | ret = start_client(argc, argv); |
088aac85 | 945 | if (ret == -1) |
9098bbf3 | 946 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 947 | else |
9098bbf3 MP |
948 | exit_cleanup(ret); |
949 | ||
950 | exit(ret); | |
951 | /* NOTREACHED */ | |
c627d613 | 952 | } |