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; |
75aeac44 | 177 | extern int daemon_over_rsh; |
6902ed17 | 178 | extern int read_batch; |
366345fe | 179 | |
088aac85 | 180 | if (!read_batch && !local_server) { |
366345fe AT |
181 | if (!cmd) |
182 | cmd = getenv(RSYNC_RSH_ENV); | |
183 | if (!cmd) | |
184 | cmd = RSYNC_RSH; | |
185 | cmd = strdup(cmd); | |
186 | if (!cmd) | |
187 | goto oom; | |
188 | ||
189 | for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) { | |
190 | args[argc++] = tok; | |
191 | } | |
c627d613 | 192 | |
7b8356d0 | 193 | #if HAVE_REMSH |
366345fe AT |
194 | /* remsh (on HPUX) takes the arguments the other way around */ |
195 | args[argc++] = machine; | |
196 | if (user) { | |
197 | args[argc++] = "-l"; | |
198 | args[argc++] = user; | |
199 | } | |
7b8356d0 | 200 | #else |
366345fe AT |
201 | if (user) { |
202 | args[argc++] = "-l"; | |
203 | args[argc++] = user; | |
204 | } | |
205 | args[argc++] = machine; | |
7b8356d0 | 206 | #endif |
c627d613 | 207 | |
366345fe | 208 | args[argc++] = rsync_path; |
c627d613 | 209 | |
93689aa5 DD |
210 | if ((blocking_io == -1) && (strcmp(cmd, RSYNC_RSH) == 0)) |
211 | blocking_io = 1; | |
e384bfbd | 212 | |
93689aa5 | 213 | server_options(args,&argc); |
e384bfbd | 214 | |
366345fe | 215 | } |
c627d613 | 216 | |
366345fe | 217 | args[argc++] = "."; |
76076c4b | 218 | |
75aeac44 | 219 | if (!daemon_over_rsh && path && *path) |
366345fe | 220 | args[argc++] = path; |
c627d613 | 221 | |
366345fe | 222 | args[argc] = NULL; |
c627d613 | 223 | |
366345fe | 224 | if (verbose > 3) { |
9486289c | 225 | rprintf(FINFO,"cmd="); |
366345fe | 226 | for (i=0;i<argc;i++) |
9486289c AT |
227 | rprintf(FINFO,"%s ",args[i]); |
228 | rprintf(FINFO,"\n"); | |
366345fe AT |
229 | } |
230 | ||
231 | if (local_server) { | |
6902ed17 | 232 | if (read_batch) |
088aac85 | 233 | create_flist_from_batch(); /* sets batch_flist */ |
25d34a5c | 234 | ret = local_child(argc, args, f_in, f_out, child_main); |
366345fe AT |
235 | } else { |
236 | ret = piped_child(args,f_in,f_out); | |
237 | } | |
c627d613 | 238 | |
366345fe | 239 | if (dir) free(dir); |
82306bf6 | 240 | |
366345fe | 241 | return ret; |
c627d613 AT |
242 | |
243 | oom: | |
366345fe AT |
244 | out_of_memory("do_cmd"); |
245 | return 0; /* not reached */ | |
c627d613 AT |
246 | } |
247 | ||
248 | ||
249 | ||
250 | ||
251 | static char *get_local_name(struct file_list *flist,char *name) | |
252 | { | |
7a6421fa AT |
253 | STRUCT_STAT st; |
254 | extern int orig_umask; | |
c627d613 | 255 | |
c95da96a AT |
256 | if (verbose > 2) |
257 | rprintf(FINFO,"get_local_name count=%d %s\n", | |
1f0610ef DD |
258 | flist->count, NS(name)); |
259 | ||
260 | if (!name) | |
261 | return NULL; | |
c95da96a | 262 | |
1ff5450d AT |
263 | if (do_stat(name,&st) == 0) { |
264 | if (S_ISDIR(st.st_mode)) { | |
5243c216 AT |
265 | if (!push_dir(name, 0)) { |
266 | rprintf(FERROR,"push_dir %s : %s (1)\n", | |
1ff5450d | 267 | name,strerror(errno)); |
65417579 | 268 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
269 | } |
270 | return NULL; | |
271 | } | |
272 | if (flist->count > 1) { | |
273 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 274 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
275 | } |
276 | return name; | |
277 | } | |
278 | ||
cec8aa77 | 279 | if (flist->count <= 1) |
1ff5450d AT |
280 | return name; |
281 | ||
1ff5450d | 282 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
b84ba896 MP |
283 | rprintf(FERROR, RSYNC_NAME ": mkdir %s: %s\n", |
284 | name, strerror(errno)); | |
65417579 | 285 | exit_cleanup(RERR_FILEIO); |
1ff5450d | 286 | } else { |
b536f47e AT |
287 | if (verbose > 0) |
288 | rprintf(FINFO,"created directory %s\n",name); | |
1ff5450d AT |
289 | } |
290 | ||
5243c216 | 291 | if (!push_dir(name, 0)) { |
b84ba896 MP |
292 | rprintf(FERROR, RSYNC_NAME ": push_dir %s: %s\n", |
293 | name, strerror(errno)); | |
65417579 | 294 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
295 | } |
296 | ||
297 | return NULL; | |
c627d613 AT |
298 | } |
299 | ||
300 | ||
301 | ||
302 | ||
9486289c | 303 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 304 | { |
7a6421fa AT |
305 | int i; |
306 | struct file_list *flist; | |
307 | char *dir = argv[0]; | |
308 | extern int relative_paths; | |
7a6421fa | 309 | extern int recurse; |
adc19c98 | 310 | extern int remote_version; |
c627d613 | 311 | |
7a6421fa AT |
312 | if (verbose > 2) |
313 | rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); | |
c627d613 | 314 | |
5243c216 AT |
315 | if (!relative_paths && !push_dir(dir, 0)) { |
316 | rprintf(FERROR,"push_dir %s: %s (3)\n",dir,strerror(errno)); | |
65417579 | 317 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
318 | } |
319 | argc--; | |
320 | argv++; | |
c627d613 | 321 | |
7a6421fa AT |
322 | if (strcmp(dir,".")) { |
323 | int l = strlen(dir); | |
324 | if (strcmp(dir,"/") == 0) | |
325 | l = 0; | |
326 | for (i=0;i<argc;i++) | |
327 | argv[i] += l+1; | |
328 | } | |
c627d613 | 329 | |
7a6421fa AT |
330 | if (argc == 0 && recurse) { |
331 | argc=1; | |
332 | argv--; | |
333 | argv[0] = "."; | |
334 | } | |
335 | ||
7a6421fa | 336 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
337 | if (!flist || flist->count == 0) { |
338 | exit_cleanup(0); | |
339 | } | |
340 | ||
7a6421fa | 341 | send_files(flist,f_out,f_in); |
3d382777 | 342 | io_flush(); |
7a6421fa | 343 | report(f_out); |
adc19c98 AT |
344 | if (remote_version >= 24) { |
345 | /* final goodbye message */ | |
346 | read_int(f_in); | |
347 | } | |
8d9dc9f9 | 348 | io_flush(); |
7a6421fa | 349 | exit_cleanup(0); |
c627d613 AT |
350 | } |
351 | ||
352 | ||
dc5ddbcc AT |
353 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
354 | { | |
d186eb1a AT |
355 | int pid; |
356 | int status=0; | |
357 | int recv_pipe[2]; | |
554e0a8d | 358 | int error_pipe[2]; |
d186eb1a | 359 | extern int preserve_hard_links; |
6957ae33 AT |
360 | extern int delete_after; |
361 | extern int recurse; | |
362 | extern int delete_mode; | |
8ada7518 | 363 | extern int remote_version; |
dc5ddbcc | 364 | |
d186eb1a AT |
365 | if (preserve_hard_links) |
366 | init_hard_links(flist); | |
dc5ddbcc | 367 | |
6957ae33 AT |
368 | if (!delete_after) { |
369 | /* I moved this here from recv_files() to prevent a race condition */ | |
370 | if (recurse && delete_mode && !local_name && flist->count>0) { | |
371 | delete_files(flist); | |
372 | } | |
373 | } | |
374 | ||
08f15335 | 375 | if (fd_pair(recv_pipe) < 0) { |
d186eb1a | 376 | rprintf(FERROR,"pipe failed in do_recv\n"); |
65417579 | 377 | exit_cleanup(RERR_SOCKETIO); |
d186eb1a | 378 | } |
554e0a8d | 379 | |
08f15335 | 380 | if (fd_pair(error_pipe) < 0) { |
554e0a8d AT |
381 | rprintf(FERROR,"error pipe failed in do_recv\n"); |
382 | exit_cleanup(RERR_SOCKETIO); | |
383 | } | |
c6e7fcb4 | 384 | |
8d9dc9f9 | 385 | io_flush(); |
c6e7fcb4 | 386 | |
d186eb1a | 387 | if ((pid=do_fork()) == 0) { |
e08c9610 | 388 | close(recv_pipe[0]); |
554e0a8d | 389 | close(error_pipe[0]); |
e08c9610 AT |
390 | if (f_in != f_out) close(f_out); |
391 | ||
554e0a8d AT |
392 | /* we can't let two processes write to the socket at one time */ |
393 | io_multiplexing_close(); | |
394 | ||
395 | /* set place to send errors */ | |
396 | set_error_fd(error_pipe[1]); | |
397 | ||
e08c9610 | 398 | recv_files(f_in,flist,local_name,recv_pipe[1]); |
3d382777 | 399 | io_flush(); |
ba5e128d | 400 | report(f_in); |
e08c9610 | 401 | |
8b35435f AT |
402 | write_int(recv_pipe[1],1); |
403 | close(recv_pipe[1]); | |
8d9dc9f9 | 404 | io_flush(); |
4a748188 | 405 | /* finally we go to sleep until our parent kills us |
27e3e9c9 | 406 | with a USR2 signal. We sleep for a short time as on |
4a748188 | 407 | some OSes a signal won't interrupt a sleep! */ |
e1bd49d6 MP |
408 | while (msleep(20)) |
409 | ; | |
d186eb1a | 410 | } |
dc5ddbcc | 411 | |
e08c9610 | 412 | close(recv_pipe[1]); |
554e0a8d | 413 | close(error_pipe[1]); |
e08c9610 | 414 | if (f_in != f_out) close(f_in); |
e1b3d5c4 | 415 | |
b3e10ed7 AT |
416 | io_start_buffering(f_out); |
417 | ||
554e0a8d AT |
418 | io_set_error_fd(error_pipe[0]); |
419 | ||
e08c9610 | 420 | generate_files(f_out,flist,local_name,recv_pipe[0]); |
8d9dc9f9 | 421 | |
8b35435f AT |
422 | read_int(recv_pipe[0]); |
423 | close(recv_pipe[0]); | |
8ada7518 AT |
424 | if (remote_version >= 24) { |
425 | /* send a final goodbye message */ | |
426 | write_int(f_out, -1); | |
427 | } | |
8d9dc9f9 | 428 | io_flush(); |
8ada7518 | 429 | |
8b35435f | 430 | kill(pid, SIGUSR2); |
d79d1c69 | 431 | wait_process(pid, &status); |
d186eb1a | 432 | return status; |
dc5ddbcc AT |
433 | } |
434 | ||
c627d613 | 435 | |
9486289c | 436 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 437 | { |
7a6421fa AT |
438 | int status; |
439 | struct file_list *flist; | |
440 | char *local_name=NULL; | |
441 | char *dir = NULL; | |
442 | extern int delete_mode; | |
b33b791e | 443 | extern int delete_excluded; |
7a6421fa | 444 | extern int am_daemon; |
09b7f5db AT |
445 | extern int module_id; |
446 | extern int am_sender; | |
088aac85 DD |
447 | extern int read_batch; |
448 | extern struct file_list *batch_flist; | |
f0fca04e | 449 | |
7a6421fa AT |
450 | if (verbose > 2) |
451 | rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid()); | |
09b7f5db AT |
452 | |
453 | if (am_daemon && lp_read_only(module_id) && !am_sender) { | |
454 | rprintf(FERROR,"ERROR: module is read only\n"); | |
455 | exit_cleanup(RERR_SYNTAX); | |
456 | return; | |
457 | } | |
458 | ||
7a6421fa | 459 | |
7a6421fa AT |
460 | if (argc > 0) { |
461 | dir = argv[0]; | |
462 | argc--; | |
463 | argv++; | |
5243c216 AT |
464 | if (!am_daemon && !push_dir(dir, 0)) { |
465 | rprintf(FERROR,"push_dir %s : %s (4)\n", | |
7a6421fa | 466 | dir,strerror(errno)); |
65417579 | 467 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
468 | } |
469 | } | |
c627d613 | 470 | |
b33b791e | 471 | if (delete_mode && !delete_excluded) |
7a6421fa | 472 | recv_exclude_list(f_in); |
c627d613 | 473 | |
088aac85 | 474 | if (read_batch) |
6902ed17 MP |
475 | flist = batch_flist; |
476 | else | |
477 | flist = recv_file_list(f_in); | |
4c36a13e AT |
478 | if (!flist) { |
479 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 480 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
481 | } |
482 | ||
483 | if (argc > 0) { | |
484 | if (strcmp(dir,".")) { | |
485 | argv[0] += strlen(dir); | |
486 | if (argv[0][0] == '/') argv[0]++; | |
487 | } | |
488 | local_name = get_local_name(flist,argv[0]); | |
489 | } | |
c627d613 | 490 | |
7a6421fa AT |
491 | status = do_recv(f_in,f_out,flist,local_name); |
492 | exit_cleanup(status); | |
c627d613 AT |
493 | } |
494 | ||
495 | ||
734a94a2 | 496 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
497 | { |
498 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 499 | return 0; |
25d34a5c MP |
500 | } |
501 | ||
502 | ||
9486289c | 503 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 504 | { |
7a6421fa AT |
505 | extern int cvs_exclude; |
506 | extern int am_sender; | |
ff41a59f | 507 | extern int remote_version; |
088aac85 | 508 | extern int read_batch; |
ff41a59f | 509 | |
6d7b6081 AT |
510 | setup_protocol(f_out, f_in); |
511 | ||
f0359dd0 AT |
512 | set_nonblocking(f_in); |
513 | set_nonblocking(f_out); | |
514 | ||
ff41a59f AT |
515 | if (remote_version >= 23) |
516 | io_start_multiplex_out(f_out); | |
7a6421fa | 517 | |
7a6421fa | 518 | if (am_sender) { |
088aac85 | 519 | if (!read_batch) { |
6902ed17 MP |
520 | recv_exclude_list(f_in); |
521 | if (cvs_exclude) | |
7a6421fa | 522 | add_cvs_excludes(); |
6902ed17 | 523 | } |
7a6421fa AT |
524 | do_server_sender(f_in, f_out, argc, argv); |
525 | } else { | |
526 | do_server_recv(f_in, f_out, argc, argv); | |
527 | } | |
528 | exit_cleanup(0); | |
366345fe AT |
529 | } |
530 | ||
0ba48136 MP |
531 | |
532 | /* | |
533 | * This is called once the connection has been negotiated. It is used | |
534 | * for rsyncd, remote-shell, and local connections. | |
535 | */ | |
19b27a48 | 536 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 537 | { |
088aac85 | 538 | struct file_list *flist = NULL; |
9486289c AT |
539 | int status = 0, status2 = 0; |
540 | char *local_name = NULL; | |
7a6421fa | 541 | extern int am_sender; |
ff41a59f | 542 | extern int remote_version; |
19b27a48 | 543 | extern pid_t cleanup_child_pid; |
088aac85 DD |
544 | extern int write_batch; |
545 | extern int read_batch; | |
546 | extern struct file_list *batch_flist; | |
19b27a48 AT |
547 | |
548 | cleanup_child_pid = pid; | |
6902ed17 | 549 | if (read_batch) |
088aac85 | 550 | flist = batch_flist; |
ff41a59f | 551 | |
f0359dd0 AT |
552 | set_nonblocking(f_in); |
553 | set_nonblocking(f_out); | |
554 | ||
6d7b6081 AT |
555 | setup_protocol(f_out,f_in); |
556 | ||
ff41a59f AT |
557 | if (remote_version >= 23) |
558 | io_start_multiplex_in(f_in); | |
9486289c AT |
559 | |
560 | if (am_sender) { | |
7a6421fa AT |
561 | extern int cvs_exclude; |
562 | extern int delete_mode; | |
b33b791e | 563 | extern int delete_excluded; |
9486289c AT |
564 | if (cvs_exclude) |
565 | add_cvs_excludes(); | |
b33b791e | 566 | if (delete_mode && !delete_excluded) |
9486289c | 567 | send_exclude_list(f_out); |
6902ed17 MP |
568 | if (!read_batch) /* dw -- don't write to pipe */ |
569 | flist = send_file_list(f_out,argc,argv); | |
9486289c AT |
570 | if (verbose > 3) |
571 | rprintf(FINFO,"file list sent\n"); | |
e1b3d5c4 | 572 | |
9486289c | 573 | send_files(flist,f_out,f_in); |
6c65e146 AT |
574 | if (remote_version >= 24) { |
575 | /* final goodbye message */ | |
576 | read_int(f_in); | |
577 | } | |
9486289c AT |
578 | if (pid != -1) { |
579 | if (verbose > 3) | |
08a740ff | 580 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
8d9dc9f9 | 581 | io_flush(); |
d79d1c69 | 582 | wait_process(pid, &status); |
9486289c | 583 | } |
3d382777 | 584 | report(-1); |
9486289c AT |
585 | exit_cleanup(status); |
586 | } | |
f7632fc6 | 587 | |
27e3e9c9 AT |
588 | if (argc == 0) { |
589 | extern int list_only; | |
590 | list_only = 1; | |
591 | } | |
9486289c | 592 | |
088aac85 | 593 | if (!write_batch) |
6902ed17 | 594 | send_exclude_list(f_out); |
9486289c AT |
595 | |
596 | flist = recv_file_list(f_in); | |
597 | if (!flist || flist->count == 0) { | |
796d484b MP |
598 | rprintf(FINFO, "client: nothing to do: " |
599 | "perhaps you need to specify some filenames or " | |
600 | "the --recursive option?\n"); | |
9486289c AT |
601 | exit_cleanup(0); |
602 | } | |
603 | ||
604 | local_name = get_local_name(flist,argv[0]); | |
605 | ||
606 | status2 = do_recv(f_in,f_out,flist,local_name); | |
607 | ||
9486289c | 608 | if (pid != -1) { |
8d9dc9f9 | 609 | if (verbose > 3) |
08a740ff | 610 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
8d9dc9f9 | 611 | io_flush(); |
d79d1c69 | 612 | wait_process(pid, &status); |
9486289c AT |
613 | } |
614 | ||
ff81e809 | 615 | return MAX(status, status2); |
9486289c AT |
616 | } |
617 | ||
ca6c93f8 AT |
618 | static char *find_colon(char *s) |
619 | { | |
620 | char *p, *p2; | |
621 | ||
622 | p = strchr(s,':'); | |
623 | if (!p) return NULL; | |
624 | ||
625 | /* now check to see if there is a / in the string before the : - if there is then | |
626 | discard the colon on the assumption that the : is part of a filename */ | |
627 | p2 = strchr(s,'/'); | |
628 | if (p2 && p2 < p) return NULL; | |
629 | ||
630 | return p; | |
631 | } | |
9486289c | 632 | |
0ba48136 | 633 | |
7169bb4a MP |
634 | static int copy_argv (char *argv[]) |
635 | { | |
636 | int i; | |
637 | ||
638 | for (i = 0; argv[i]; i++) { | |
639 | if (!(argv[i] = strdup(argv[i]))) { | |
640 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
641 | __FILE__, __LINE__); | |
642 | return RERR_MALLOC; | |
643 | } | |
644 | } | |
645 | ||
646 | return 0; | |
647 | } | |
648 | ||
649 | ||
c1a04ecb | 650 | /** |
0ba48136 MP |
651 | * Start a client for either type of remote connection. Work out |
652 | * whether the arguments request a remote shell or rsyncd connection, | |
653 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
654 | * |
655 | * Calls either start_socket_client (for sockets) or do_cmd and | |
656 | * client_run (for ssh). | |
c1a04ecb | 657 | **/ |
fc8a6b97 | 658 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
659 | { |
660 | char *p; | |
661 | char *shell_machine = NULL; | |
662 | char *shell_path = NULL; | |
663 | char *shell_user = NULL; | |
19b27a48 AT |
664 | int ret; |
665 | pid_t pid; | |
5d6bcd44 | 666 | int f_in,f_out; |
7a6421fa AT |
667 | extern int local_server; |
668 | extern int am_sender; | |
669 | extern char *shell_cmd; | |
2acf81eb | 670 | extern int rsync_port; |
75aeac44 | 671 | extern int daemon_over_rsh; |
6902ed17 | 672 | extern int read_batch; |
7169bb4a MP |
673 | int rc; |
674 | ||
675 | /* Don't clobber argv[] so that ps(1) can still show the right | |
676 | command line. */ | |
75aeac44 | 677 | if ((rc = copy_argv(argv))) |
7169bb4a | 678 | return rc; |
5d6bcd44 | 679 | |
75aeac44 | 680 | /* rsync:// always uses rsync server over direct socket connection */ |
7169bb4a | 681 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) { |
f7632fc6 AT |
682 | char *host, *path; |
683 | ||
7169bb4a | 684 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
685 | p = strchr(host,'/'); |
686 | if (p) { | |
687 | *p = 0; | |
688 | path = p+1; | |
689 | } else { | |
a125c82a | 690 | path = ""; |
f7632fc6 | 691 | } |
2acf81eb DD |
692 | p = strchr(host,':'); |
693 | if (p) { | |
694 | rsync_port = atoi(p+1); | |
695 | *p = 0; | |
696 | } | |
f7632fc6 AT |
697 | return start_socket_client(host, path, argc-1, argv+1); |
698 | } | |
699 | ||
088aac85 | 700 | if (!read_batch) { |
a125c82a | 701 | p = find_colon(argv[0]); |
5d6bcd44 AT |
702 | |
703 | if (p) { | |
c1a04ecb | 704 | if (p[1] == ':') { /* double colon */ |
9486289c | 705 | *p = 0; |
75aeac44 WD |
706 | if (!shell_cmd) { |
707 | return start_socket_client(argv[0], p+2, | |
708 | argc-1, argv+1); | |
709 | } | |
710 | p++; | |
711 | daemon_over_rsh = 1; | |
9486289c | 712 | } |
3591c066 | 713 | |
f7632fc6 | 714 | if (argc < 1) { |
3591c066 | 715 | usage(FERROR); |
65417579 | 716 | exit_cleanup(RERR_SYNTAX); |
3591c066 AT |
717 | } |
718 | ||
5d6bcd44 AT |
719 | am_sender = 0; |
720 | *p = 0; | |
7169bb4a | 721 | shell_machine = argv[0]; |
5d6bcd44 AT |
722 | shell_path = p+1; |
723 | argc--; | |
724 | argv++; | |
725 | } else { | |
726 | am_sender = 1; | |
9486289c | 727 | |
a125c82a WD |
728 | /* rsync:// destination uses rsync server over direct socket */ |
729 | if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) { | |
730 | char *host, *path; | |
731 | ||
732 | host = argv[argc-1] + strlen(URL_PREFIX); | |
733 | p = strchr(host,'/'); | |
734 | if (p) { | |
735 | *p = 0; | |
736 | path = p+1; | |
737 | } else { | |
738 | path = ""; | |
739 | } | |
740 | p = strchr(host,':'); | |
741 | if (p) { | |
742 | rsync_port = atoi(p+1); | |
743 | *p = 0; | |
744 | } | |
745 | return start_socket_client(host, path, argc-1, argv); | |
746 | } | |
747 | ||
ca6c93f8 | 748 | p = find_colon(argv[argc-1]); |
5d6bcd44 AT |
749 | if (!p) { |
750 | local_server = 1; | |
75aeac44 | 751 | } else if (p[1] == ':') { /* double colon */ |
9486289c | 752 | *p = 0; |
75aeac44 WD |
753 | if (!shell_cmd) { |
754 | return start_socket_client(argv[argc-1], p+2, | |
755 | argc-1, argv); | |
756 | } | |
757 | p++; | |
758 | daemon_over_rsh = 1; | |
5d6bcd44 | 759 | } |
3591c066 AT |
760 | |
761 | if (argc < 2) { | |
762 | usage(FERROR); | |
65417579 | 763 | exit_cleanup(RERR_SYNTAX); |
3591c066 | 764 | } |
9486289c | 765 | |
5d6bcd44 AT |
766 | if (local_server) { |
767 | shell_machine = NULL; | |
768 | shell_path = argv[argc-1]; | |
769 | } else { | |
770 | *p = 0; | |
771 | shell_machine = argv[argc-1]; | |
772 | shell_path = p+1; | |
773 | } | |
774 | argc--; | |
775 | } | |
6902ed17 | 776 | } else { |
088aac85 DD |
777 | am_sender = 1; |
778 | local_server = 1; | |
779 | shell_path = argv[argc-1]; | |
6902ed17 MP |
780 | } |
781 | ||
5d6bcd44 AT |
782 | if (shell_machine) { |
783 | p = strchr(shell_machine,'@'); | |
784 | if (p) { | |
785 | *p = 0; | |
786 | shell_user = shell_machine; | |
787 | shell_machine = p+1; | |
788 | } | |
789 | } | |
790 | ||
791 | if (verbose > 3) { | |
9486289c | 792 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
5d6bcd44 AT |
793 | shell_cmd?shell_cmd:"", |
794 | shell_machine?shell_machine:"", | |
795 | shell_user?shell_user:"", | |
796 | shell_path?shell_path:""); | |
797 | } | |
798 | ||
f7632fc6 | 799 | if (!am_sender && argc > 1) { |
5d6bcd44 | 800 | usage(FERROR); |
65417579 | 801 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 802 | } |
27e3e9c9 AT |
803 | |
804 | if (argc == 0 && !am_sender) { | |
805 | extern int list_only; | |
806 | list_only = 1; | |
807 | } | |
5d6bcd44 | 808 | |
75aeac44 WD |
809 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
810 | &f_in,&f_out); | |
811 | ||
812 | /* if we're running an rsync server on the remote host over a | |
813 | remote shell command, we need to do the RSYNCD protocol first */ | |
814 | if (daemon_over_rsh) { | |
815 | int tmpret; | |
816 | tmpret = start_inband_exchange(shell_user, shell_path, | |
817 | f_in, f_out, argc); | |
818 | if (tmpret < 0) | |
819 | return tmpret; | |
820 | } | |
821 | ||
fc8a6b97 AT |
822 | ret = client_run(f_in, f_out, pid, argc, argv); |
823 | ||
824 | fflush(stdout); | |
825 | fflush(stderr); | |
826 | ||
827 | return ret; | |
5d6bcd44 AT |
828 | } |
829 | ||
366345fe | 830 | |
0f0ea7f7 | 831 | static RETSIGTYPE sigusr1_handler(int UNUSED(val)) { |
65417579 | 832 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
833 | } |
834 | ||
0f0ea7f7 | 835 | static RETSIGTYPE sigusr2_handler(int UNUSED(val)) { |
ff81e809 | 836 | extern int log_got_error; |
19b27a48 | 837 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
838 | _exit(0); |
839 | } | |
840 | ||
0f0ea7f7 | 841 | static RETSIGTYPE sigchld_handler(int UNUSED(val)) { |
029c1713 AT |
842 | #ifdef WNOHANG |
843 | while (waitpid(-1, NULL, WNOHANG) > 0) ; | |
844 | #endif | |
19b27a48 AT |
845 | } |
846 | ||
c0531332 MP |
847 | |
848 | /** | |
849 | * This routine catches signals and tries to send them to gdb. | |
850 | * | |
851 | * Because it's called from inside a signal handler it ought not to | |
852 | * use too many library routines. | |
853 | * | |
854 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
855 | * debugging without easy access to X. Perhaps use an environment | |
856 | * variable, or just call a script? | |
857 | * | |
858 | * @todo The /proc/ magic probably only works on Linux (and | |
859 | * Solaris?) Can we be more portable? | |
860 | **/ | |
861 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
862 | const char *get_panic_action(void) |
863 | { | |
864 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
865 | ||
866 | if (cmd_fmt) | |
867 | return cmd_fmt; | |
868 | else | |
869 | return "xterm -display :0 -T Panic -n Panic " | |
870 | "-e gdb /proc/%d/exe %d"; | |
871 | } | |
872 | ||
873 | ||
9fb3f7a9 MP |
874 | /** |
875 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
876 | * | |
877 | * This signal handler is only installed if we were configured with | |
878 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
879 | * should just look at the environment variable, but I'm a bit leery | |
880 | * of a signal sending us into a busy loop. | |
881 | **/ | |
c0531332 MP |
882 | static RETSIGTYPE rsync_panic_handler(int UNUSED(whatsig)) |
883 | { | |
884 | char cmd_buf[300]; | |
885 | int ret; | |
4fdc39dd MP |
886 | |
887 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
888 | getpid(), getpid()); |
889 | ||
890 | /* Unless we failed to execute gdb, we allow the process to | |
891 | * continue. I'm not sure if that's right. */ | |
892 | ret = system(cmd_buf); | |
893 | if (ret) | |
894 | _exit(ret); | |
895 | } | |
896 | #endif | |
897 | ||
898 | ||
5d6bcd44 | 899 | int main(int argc,char *argv[]) |
7a6421fa AT |
900 | { |
901 | extern int am_root; | |
902 | extern int orig_umask; | |
903 | extern int dry_run; | |
904 | extern int am_daemon; | |
905 | extern int am_server; | |
ff81e809 | 906 | int ret; |
088aac85 DD |
907 | extern int write_batch; |
908 | int orig_argc; | |
76f79ba7 | 909 | char **orig_argv; |
6902ed17 | 910 | |
088aac85 | 911 | orig_argc = argc; |
76f79ba7 | 912 | orig_argv = argv; |
5d6bcd44 | 913 | |
7a6421fa | 914 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 915 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 916 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
917 | #ifdef MAINTAINER_MODE |
918 | signal(SIGSEGV, rsync_panic_handler); | |
919 | signal(SIGFPE, rsync_panic_handler); | |
920 | signal(SIGABRT, rsync_panic_handler); | |
921 | signal(SIGBUS, rsync_panic_handler); | |
922 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 923 | |
7a6421fa AT |
924 | starttime = time(NULL); |
925 | am_root = (getuid() == 0); | |
c627d613 | 926 | |
a800434a AT |
927 | memset(&stats, 0, sizeof(stats)); |
928 | ||
df5e03da AT |
929 | if (argc < 2) { |
930 | usage(FERROR); | |
65417579 | 931 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
932 | } |
933 | ||
7a6421fa AT |
934 | /* we set a 0 umask so that correct file permissions can be |
935 | carried across */ | |
936 | orig_umask = (int)umask(0); | |
5d6bcd44 | 937 | |
50135767 | 938 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
305ab133 MP |
939 | /* FIXME: We ought to call the same error-handling |
940 | * code here, rather than relying on getopt. */ | |
50135767 | 941 | option_error(); |
65417579 | 942 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 943 | } |
5d6bcd44 | 944 | |
7a6421fa | 945 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 946 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 947 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 948 | |
34758d5c MP |
949 | /* Ignore SIGPIPE; we consistently check error codes and will |
950 | * see the EPIPE. */ | |
951 | signal(SIGPIPE, SIG_IGN); | |
952 | ||
c226b7c2 DD |
953 | /* Initialize push_dir here because on some old systems getcwd |
954 | (implemented by forking "pwd" and reading its output) doesn't | |
955 | work when there are other child processes. Also, on all systems | |
956 | that implement getcwd that way "pwd" can't be found after chroot. */ | |
957 | push_dir(NULL,0); | |
958 | ||
088aac85 | 959 | if (write_batch && !am_server) { |
76f79ba7 | 960 | write_batch_argvs_file(orig_argc, orig_argv); |
6902ed17 MP |
961 | } |
962 | ||
75aeac44 | 963 | if (am_daemon && !am_server) |
7a6421fa | 964 | return daemon_main(); |
f0fca04e | 965 | |
08ac228f AT |
966 | if (argc < 1) { |
967 | usage(FERROR); | |
65417579 | 968 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
969 | } |
970 | ||
7a6421fa AT |
971 | if (dry_run) |
972 | verbose = MAX(verbose,1); | |
c627d613 | 973 | |
cbbe4892 | 974 | #ifndef SUPPORT_LINKS |
7a6421fa AT |
975 | if (!am_server && preserve_links) { |
976 | rprintf(FERROR,"ERROR: symbolic links not supported\n"); | |
65417579 | 977 | exit_cleanup(RERR_UNSUPPORTED); |
7a6421fa | 978 | } |
cbbe4892 AT |
979 | #endif |
980 | ||
7a6421fa | 981 | if (am_server) { |
f0359dd0 AT |
982 | set_nonblocking(STDIN_FILENO); |
983 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
984 | if (am_daemon) |
985 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
986 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
987 | } | |
c627d613 | 988 | |
ff81e809 | 989 | ret = start_client(argc, argv); |
088aac85 | 990 | if (ret == -1) |
9098bbf3 | 991 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 992 | else |
9098bbf3 MP |
993 | exit_cleanup(ret); |
994 | ||
995 | exit(ret); | |
996 | /* NOTREACHED */ | |
c627d613 | 997 | } |