Commit | Line | Data |
---|---|---|
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; |
bb4aa89c | 174 | int dash_l_set = 0; |
7a6421fa AT |
175 | extern int local_server; |
176 | extern char *rsync_path; | |
e384bfbd | 177 | extern int blocking_io; |
75aeac44 | 178 | extern int daemon_over_rsh; |
6902ed17 | 179 | extern int read_batch; |
366345fe | 180 | |
088aac85 | 181 | if (!read_batch && !local_server) { |
366345fe AT |
182 | if (!cmd) |
183 | cmd = getenv(RSYNC_RSH_ENV); | |
184 | if (!cmd) | |
185 | cmd = RSYNC_RSH; | |
186 | cmd = strdup(cmd); | |
187 | if (!cmd) | |
188 | goto oom; | |
189 | ||
190 | for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) { | |
191 | args[argc++] = tok; | |
192 | } | |
c627d613 | 193 | |
bb4aa89c WD |
194 | /* check to see if we've already been given '-l user' in |
195 | the remote-shell command */ | |
196 | for (i = 0; i < argc-1; i++) { | |
197 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
198 | dash_l_set = 1; | |
199 | } | |
200 | ||
7b8356d0 | 201 | #if HAVE_REMSH |
366345fe AT |
202 | /* remsh (on HPUX) takes the arguments the other way around */ |
203 | args[argc++] = machine; | |
bb4aa89c | 204 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
205 | args[argc++] = "-l"; |
206 | args[argc++] = user; | |
207 | } | |
7b8356d0 | 208 | #else |
bb4aa89c | 209 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
210 | args[argc++] = "-l"; |
211 | args[argc++] = user; | |
212 | } | |
213 | args[argc++] = machine; | |
7b8356d0 | 214 | #endif |
c627d613 | 215 | |
366345fe | 216 | args[argc++] = rsync_path; |
c627d613 | 217 | |
93689aa5 DD |
218 | if ((blocking_io == -1) && (strcmp(cmd, RSYNC_RSH) == 0)) |
219 | blocking_io = 1; | |
e384bfbd | 220 | |
93689aa5 | 221 | server_options(args,&argc); |
e384bfbd | 222 | |
366345fe | 223 | } |
c627d613 | 224 | |
366345fe | 225 | args[argc++] = "."; |
76076c4b | 226 | |
75aeac44 | 227 | if (!daemon_over_rsh && path && *path) |
366345fe | 228 | args[argc++] = path; |
c627d613 | 229 | |
366345fe | 230 | args[argc] = NULL; |
c627d613 | 231 | |
366345fe | 232 | if (verbose > 3) { |
9486289c | 233 | rprintf(FINFO,"cmd="); |
366345fe | 234 | for (i=0;i<argc;i++) |
9486289c AT |
235 | rprintf(FINFO,"%s ",args[i]); |
236 | rprintf(FINFO,"\n"); | |
366345fe AT |
237 | } |
238 | ||
239 | if (local_server) { | |
6902ed17 | 240 | if (read_batch) |
088aac85 | 241 | create_flist_from_batch(); /* sets batch_flist */ |
25d34a5c | 242 | ret = local_child(argc, args, f_in, f_out, child_main); |
366345fe AT |
243 | } else { |
244 | ret = piped_child(args,f_in,f_out); | |
245 | } | |
c627d613 | 246 | |
366345fe | 247 | if (dir) free(dir); |
82306bf6 | 248 | |
366345fe | 249 | return ret; |
c627d613 AT |
250 | |
251 | oom: | |
366345fe AT |
252 | out_of_memory("do_cmd"); |
253 | return 0; /* not reached */ | |
c627d613 AT |
254 | } |
255 | ||
256 | ||
257 | ||
258 | ||
259 | static char *get_local_name(struct file_list *flist,char *name) | |
260 | { | |
7a6421fa AT |
261 | STRUCT_STAT st; |
262 | extern int orig_umask; | |
c627d613 | 263 | |
c95da96a AT |
264 | if (verbose > 2) |
265 | rprintf(FINFO,"get_local_name count=%d %s\n", | |
1f0610ef DD |
266 | flist->count, NS(name)); |
267 | ||
268 | if (!name) | |
269 | return NULL; | |
c95da96a | 270 | |
1ff5450d AT |
271 | if (do_stat(name,&st) == 0) { |
272 | if (S_ISDIR(st.st_mode)) { | |
5243c216 AT |
273 | if (!push_dir(name, 0)) { |
274 | rprintf(FERROR,"push_dir %s : %s (1)\n", | |
1ff5450d | 275 | name,strerror(errno)); |
65417579 | 276 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
277 | } |
278 | return NULL; | |
279 | } | |
280 | if (flist->count > 1) { | |
281 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 282 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
283 | } |
284 | return name; | |
285 | } | |
286 | ||
cec8aa77 | 287 | if (flist->count <= 1) |
1ff5450d AT |
288 | return name; |
289 | ||
1ff5450d | 290 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
b84ba896 MP |
291 | rprintf(FERROR, RSYNC_NAME ": mkdir %s: %s\n", |
292 | name, strerror(errno)); | |
65417579 | 293 | exit_cleanup(RERR_FILEIO); |
1ff5450d | 294 | } else { |
b536f47e AT |
295 | if (verbose > 0) |
296 | rprintf(FINFO,"created directory %s\n",name); | |
1ff5450d AT |
297 | } |
298 | ||
5243c216 | 299 | if (!push_dir(name, 0)) { |
b84ba896 MP |
300 | rprintf(FERROR, RSYNC_NAME ": push_dir %s: %s\n", |
301 | name, strerror(errno)); | |
65417579 | 302 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
303 | } |
304 | ||
305 | return NULL; | |
c627d613 AT |
306 | } |
307 | ||
308 | ||
309 | ||
310 | ||
9486289c | 311 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 312 | { |
7a6421fa AT |
313 | int i; |
314 | struct file_list *flist; | |
315 | char *dir = argv[0]; | |
316 | extern int relative_paths; | |
7a6421fa | 317 | extern int recurse; |
adc19c98 | 318 | extern int remote_version; |
c627d613 | 319 | |
7a6421fa AT |
320 | if (verbose > 2) |
321 | rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); | |
c627d613 | 322 | |
5243c216 AT |
323 | if (!relative_paths && !push_dir(dir, 0)) { |
324 | rprintf(FERROR,"push_dir %s: %s (3)\n",dir,strerror(errno)); | |
65417579 | 325 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
326 | } |
327 | argc--; | |
328 | argv++; | |
c627d613 | 329 | |
7a6421fa AT |
330 | if (strcmp(dir,".")) { |
331 | int l = strlen(dir); | |
332 | if (strcmp(dir,"/") == 0) | |
333 | l = 0; | |
334 | for (i=0;i<argc;i++) | |
335 | argv[i] += l+1; | |
336 | } | |
c627d613 | 337 | |
7a6421fa AT |
338 | if (argc == 0 && recurse) { |
339 | argc=1; | |
340 | argv--; | |
341 | argv[0] = "."; | |
342 | } | |
343 | ||
7a6421fa | 344 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
345 | if (!flist || flist->count == 0) { |
346 | exit_cleanup(0); | |
347 | } | |
348 | ||
7a6421fa | 349 | send_files(flist,f_out,f_in); |
3d382777 | 350 | io_flush(); |
7a6421fa | 351 | report(f_out); |
adc19c98 AT |
352 | if (remote_version >= 24) { |
353 | /* final goodbye message */ | |
354 | read_int(f_in); | |
355 | } | |
8d9dc9f9 | 356 | io_flush(); |
7a6421fa | 357 | exit_cleanup(0); |
c627d613 AT |
358 | } |
359 | ||
360 | ||
dc5ddbcc AT |
361 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
362 | { | |
d186eb1a AT |
363 | int pid; |
364 | int status=0; | |
365 | int recv_pipe[2]; | |
554e0a8d | 366 | int error_pipe[2]; |
d186eb1a | 367 | extern int preserve_hard_links; |
6957ae33 AT |
368 | extern int delete_after; |
369 | extern int recurse; | |
370 | extern int delete_mode; | |
8ada7518 | 371 | extern int remote_version; |
dc5ddbcc | 372 | |
d186eb1a AT |
373 | if (preserve_hard_links) |
374 | init_hard_links(flist); | |
dc5ddbcc | 375 | |
6957ae33 AT |
376 | if (!delete_after) { |
377 | /* I moved this here from recv_files() to prevent a race condition */ | |
378 | if (recurse && delete_mode && !local_name && flist->count>0) { | |
379 | delete_files(flist); | |
380 | } | |
381 | } | |
382 | ||
08f15335 | 383 | if (fd_pair(recv_pipe) < 0) { |
d186eb1a | 384 | rprintf(FERROR,"pipe failed in do_recv\n"); |
65417579 | 385 | exit_cleanup(RERR_SOCKETIO); |
d186eb1a | 386 | } |
554e0a8d | 387 | |
08f15335 | 388 | if (fd_pair(error_pipe) < 0) { |
554e0a8d AT |
389 | rprintf(FERROR,"error pipe failed in do_recv\n"); |
390 | exit_cleanup(RERR_SOCKETIO); | |
391 | } | |
c6e7fcb4 | 392 | |
8d9dc9f9 | 393 | io_flush(); |
c6e7fcb4 | 394 | |
d186eb1a | 395 | if ((pid=do_fork()) == 0) { |
e08c9610 | 396 | close(recv_pipe[0]); |
554e0a8d | 397 | close(error_pipe[0]); |
e08c9610 AT |
398 | if (f_in != f_out) close(f_out); |
399 | ||
554e0a8d AT |
400 | /* we can't let two processes write to the socket at one time */ |
401 | io_multiplexing_close(); | |
402 | ||
403 | /* set place to send errors */ | |
404 | set_error_fd(error_pipe[1]); | |
405 | ||
e08c9610 | 406 | recv_files(f_in,flist,local_name,recv_pipe[1]); |
3d382777 | 407 | io_flush(); |
ba5e128d | 408 | report(f_in); |
e08c9610 | 409 | |
8b35435f AT |
410 | write_int(recv_pipe[1],1); |
411 | close(recv_pipe[1]); | |
8d9dc9f9 | 412 | io_flush(); |
4a748188 | 413 | /* finally we go to sleep until our parent kills us |
27e3e9c9 | 414 | with a USR2 signal. We sleep for a short time as on |
4a748188 | 415 | some OSes a signal won't interrupt a sleep! */ |
e1bd49d6 MP |
416 | while (msleep(20)) |
417 | ; | |
d186eb1a | 418 | } |
dc5ddbcc | 419 | |
e08c9610 | 420 | close(recv_pipe[1]); |
554e0a8d | 421 | close(error_pipe[1]); |
e08c9610 | 422 | if (f_in != f_out) close(f_in); |
e1b3d5c4 | 423 | |
b3e10ed7 AT |
424 | io_start_buffering(f_out); |
425 | ||
554e0a8d AT |
426 | io_set_error_fd(error_pipe[0]); |
427 | ||
e08c9610 | 428 | generate_files(f_out,flist,local_name,recv_pipe[0]); |
8d9dc9f9 | 429 | |
8b35435f AT |
430 | read_int(recv_pipe[0]); |
431 | close(recv_pipe[0]); | |
8ada7518 AT |
432 | if (remote_version >= 24) { |
433 | /* send a final goodbye message */ | |
434 | write_int(f_out, -1); | |
435 | } | |
8d9dc9f9 | 436 | io_flush(); |
8ada7518 | 437 | |
8b35435f | 438 | kill(pid, SIGUSR2); |
d79d1c69 | 439 | wait_process(pid, &status); |
d186eb1a | 440 | return status; |
dc5ddbcc AT |
441 | } |
442 | ||
c627d613 | 443 | |
9486289c | 444 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 445 | { |
7a6421fa AT |
446 | int status; |
447 | struct file_list *flist; | |
448 | char *local_name=NULL; | |
449 | char *dir = NULL; | |
450 | extern int delete_mode; | |
b33b791e | 451 | extern int delete_excluded; |
7a6421fa | 452 | extern int am_daemon; |
09b7f5db AT |
453 | extern int module_id; |
454 | extern int am_sender; | |
088aac85 DD |
455 | extern int read_batch; |
456 | extern struct file_list *batch_flist; | |
f0fca04e | 457 | |
7a6421fa AT |
458 | if (verbose > 2) |
459 | rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid()); | |
09b7f5db AT |
460 | |
461 | if (am_daemon && lp_read_only(module_id) && !am_sender) { | |
462 | rprintf(FERROR,"ERROR: module is read only\n"); | |
463 | exit_cleanup(RERR_SYNTAX); | |
464 | return; | |
465 | } | |
466 | ||
7a6421fa | 467 | |
7a6421fa AT |
468 | if (argc > 0) { |
469 | dir = argv[0]; | |
470 | argc--; | |
471 | argv++; | |
5243c216 AT |
472 | if (!am_daemon && !push_dir(dir, 0)) { |
473 | rprintf(FERROR,"push_dir %s : %s (4)\n", | |
7a6421fa | 474 | dir,strerror(errno)); |
65417579 | 475 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
476 | } |
477 | } | |
c627d613 | 478 | |
b33b791e | 479 | if (delete_mode && !delete_excluded) |
7a6421fa | 480 | recv_exclude_list(f_in); |
c627d613 | 481 | |
088aac85 | 482 | if (read_batch) |
6902ed17 MP |
483 | flist = batch_flist; |
484 | else | |
485 | flist = recv_file_list(f_in); | |
4c36a13e AT |
486 | if (!flist) { |
487 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 488 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
489 | } |
490 | ||
491 | if (argc > 0) { | |
492 | if (strcmp(dir,".")) { | |
493 | argv[0] += strlen(dir); | |
494 | if (argv[0][0] == '/') argv[0]++; | |
495 | } | |
496 | local_name = get_local_name(flist,argv[0]); | |
497 | } | |
c627d613 | 498 | |
7a6421fa AT |
499 | status = do_recv(f_in,f_out,flist,local_name); |
500 | exit_cleanup(status); | |
c627d613 AT |
501 | } |
502 | ||
503 | ||
734a94a2 | 504 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
505 | { |
506 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 507 | return 0; |
25d34a5c MP |
508 | } |
509 | ||
510 | ||
9486289c | 511 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 512 | { |
7a6421fa AT |
513 | extern int cvs_exclude; |
514 | extern int am_sender; | |
ff41a59f | 515 | extern int remote_version; |
088aac85 | 516 | extern int read_batch; |
ff41a59f | 517 | |
6d7b6081 AT |
518 | setup_protocol(f_out, f_in); |
519 | ||
f0359dd0 AT |
520 | set_nonblocking(f_in); |
521 | set_nonblocking(f_out); | |
522 | ||
ff41a59f AT |
523 | if (remote_version >= 23) |
524 | io_start_multiplex_out(f_out); | |
7a6421fa | 525 | |
7a6421fa | 526 | if (am_sender) { |
088aac85 | 527 | if (!read_batch) { |
6902ed17 MP |
528 | recv_exclude_list(f_in); |
529 | if (cvs_exclude) | |
7a6421fa | 530 | add_cvs_excludes(); |
6902ed17 | 531 | } |
7a6421fa AT |
532 | do_server_sender(f_in, f_out, argc, argv); |
533 | } else { | |
534 | do_server_recv(f_in, f_out, argc, argv); | |
535 | } | |
536 | exit_cleanup(0); | |
366345fe AT |
537 | } |
538 | ||
0ba48136 MP |
539 | |
540 | /* | |
541 | * This is called once the connection has been negotiated. It is used | |
542 | * for rsyncd, remote-shell, and local connections. | |
543 | */ | |
19b27a48 | 544 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 545 | { |
088aac85 | 546 | struct file_list *flist = NULL; |
9486289c AT |
547 | int status = 0, status2 = 0; |
548 | char *local_name = NULL; | |
7a6421fa | 549 | extern int am_sender; |
ff41a59f | 550 | extern int remote_version; |
19b27a48 | 551 | extern pid_t cleanup_child_pid; |
088aac85 DD |
552 | extern int write_batch; |
553 | extern int read_batch; | |
554 | extern struct file_list *batch_flist; | |
19b27a48 AT |
555 | |
556 | cleanup_child_pid = pid; | |
6902ed17 | 557 | if (read_batch) |
088aac85 | 558 | flist = batch_flist; |
ff41a59f | 559 | |
f0359dd0 AT |
560 | set_nonblocking(f_in); |
561 | set_nonblocking(f_out); | |
562 | ||
6d7b6081 AT |
563 | setup_protocol(f_out,f_in); |
564 | ||
ff41a59f AT |
565 | if (remote_version >= 23) |
566 | io_start_multiplex_in(f_in); | |
9486289c AT |
567 | |
568 | if (am_sender) { | |
7a6421fa AT |
569 | extern int cvs_exclude; |
570 | extern int delete_mode; | |
b33b791e | 571 | extern int delete_excluded; |
9486289c AT |
572 | if (cvs_exclude) |
573 | add_cvs_excludes(); | |
b33b791e | 574 | if (delete_mode && !delete_excluded) |
9486289c | 575 | send_exclude_list(f_out); |
6902ed17 MP |
576 | if (!read_batch) /* dw -- don't write to pipe */ |
577 | flist = send_file_list(f_out,argc,argv); | |
9486289c AT |
578 | if (verbose > 3) |
579 | rprintf(FINFO,"file list sent\n"); | |
e1b3d5c4 | 580 | |
9486289c | 581 | send_files(flist,f_out,f_in); |
6c65e146 AT |
582 | if (remote_version >= 24) { |
583 | /* final goodbye message */ | |
584 | read_int(f_in); | |
585 | } | |
9486289c AT |
586 | if (pid != -1) { |
587 | if (verbose > 3) | |
08a740ff | 588 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
8d9dc9f9 | 589 | io_flush(); |
d79d1c69 | 590 | wait_process(pid, &status); |
9486289c | 591 | } |
3d382777 | 592 | report(-1); |
9486289c AT |
593 | exit_cleanup(status); |
594 | } | |
f7632fc6 | 595 | |
27e3e9c9 AT |
596 | if (argc == 0) { |
597 | extern int list_only; | |
598 | list_only = 1; | |
599 | } | |
9486289c | 600 | |
088aac85 | 601 | if (!write_batch) |
6902ed17 | 602 | send_exclude_list(f_out); |
9486289c AT |
603 | |
604 | flist = recv_file_list(f_in); | |
605 | if (!flist || flist->count == 0) { | |
796d484b MP |
606 | rprintf(FINFO, "client: nothing to do: " |
607 | "perhaps you need to specify some filenames or " | |
608 | "the --recursive option?\n"); | |
9486289c AT |
609 | exit_cleanup(0); |
610 | } | |
611 | ||
612 | local_name = get_local_name(flist,argv[0]); | |
613 | ||
614 | status2 = do_recv(f_in,f_out,flist,local_name); | |
615 | ||
9486289c | 616 | if (pid != -1) { |
8d9dc9f9 | 617 | if (verbose > 3) |
08a740ff | 618 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
8d9dc9f9 | 619 | io_flush(); |
d79d1c69 | 620 | wait_process(pid, &status); |
9486289c AT |
621 | } |
622 | ||
ff81e809 | 623 | return MAX(status, status2); |
9486289c AT |
624 | } |
625 | ||
ca6c93f8 AT |
626 | static char *find_colon(char *s) |
627 | { | |
628 | char *p, *p2; | |
629 | ||
630 | p = strchr(s,':'); | |
631 | if (!p) return NULL; | |
632 | ||
633 | /* now check to see if there is a / in the string before the : - if there is then | |
634 | discard the colon on the assumption that the : is part of a filename */ | |
635 | p2 = strchr(s,'/'); | |
636 | if (p2 && p2 < p) return NULL; | |
637 | ||
638 | return p; | |
639 | } | |
9486289c | 640 | |
0ba48136 | 641 | |
7169bb4a MP |
642 | static int copy_argv (char *argv[]) |
643 | { | |
644 | int i; | |
645 | ||
646 | for (i = 0; argv[i]; i++) { | |
647 | if (!(argv[i] = strdup(argv[i]))) { | |
648 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
649 | __FILE__, __LINE__); | |
650 | return RERR_MALLOC; | |
651 | } | |
652 | } | |
653 | ||
654 | return 0; | |
655 | } | |
656 | ||
657 | ||
c1a04ecb | 658 | /** |
0ba48136 MP |
659 | * Start a client for either type of remote connection. Work out |
660 | * whether the arguments request a remote shell or rsyncd connection, | |
661 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
662 | * |
663 | * Calls either start_socket_client (for sockets) or do_cmd and | |
664 | * client_run (for ssh). | |
c1a04ecb | 665 | **/ |
fc8a6b97 | 666 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
667 | { |
668 | char *p; | |
669 | char *shell_machine = NULL; | |
670 | char *shell_path = NULL; | |
671 | char *shell_user = NULL; | |
19b27a48 AT |
672 | int ret; |
673 | pid_t pid; | |
5d6bcd44 | 674 | int f_in,f_out; |
7a6421fa AT |
675 | extern int local_server; |
676 | extern int am_sender; | |
677 | extern char *shell_cmd; | |
2acf81eb | 678 | extern int rsync_port; |
75aeac44 | 679 | extern int daemon_over_rsh; |
6902ed17 | 680 | extern int read_batch; |
7169bb4a MP |
681 | int rc; |
682 | ||
683 | /* Don't clobber argv[] so that ps(1) can still show the right | |
684 | command line. */ | |
75aeac44 | 685 | if ((rc = copy_argv(argv))) |
7169bb4a | 686 | return rc; |
5d6bcd44 | 687 | |
75aeac44 | 688 | /* rsync:// always uses rsync server over direct socket connection */ |
7169bb4a | 689 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) { |
f7632fc6 AT |
690 | char *host, *path; |
691 | ||
7169bb4a | 692 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
693 | p = strchr(host,'/'); |
694 | if (p) { | |
695 | *p = 0; | |
696 | path = p+1; | |
697 | } else { | |
a125c82a | 698 | path = ""; |
f7632fc6 | 699 | } |
2acf81eb DD |
700 | p = strchr(host,':'); |
701 | if (p) { | |
702 | rsync_port = atoi(p+1); | |
703 | *p = 0; | |
704 | } | |
f7632fc6 AT |
705 | return start_socket_client(host, path, argc-1, argv+1); |
706 | } | |
707 | ||
088aac85 | 708 | if (!read_batch) { |
a125c82a | 709 | p = find_colon(argv[0]); |
5d6bcd44 AT |
710 | |
711 | if (p) { | |
c1a04ecb | 712 | if (p[1] == ':') { /* double colon */ |
9486289c | 713 | *p = 0; |
75aeac44 WD |
714 | if (!shell_cmd) { |
715 | return start_socket_client(argv[0], p+2, | |
716 | argc-1, argv+1); | |
717 | } | |
718 | p++; | |
719 | daemon_over_rsh = 1; | |
9486289c | 720 | } |
3591c066 | 721 | |
f7632fc6 | 722 | if (argc < 1) { |
3591c066 | 723 | usage(FERROR); |
65417579 | 724 | exit_cleanup(RERR_SYNTAX); |
3591c066 AT |
725 | } |
726 | ||
5d6bcd44 AT |
727 | am_sender = 0; |
728 | *p = 0; | |
7169bb4a | 729 | shell_machine = argv[0]; |
5d6bcd44 AT |
730 | shell_path = p+1; |
731 | argc--; | |
732 | argv++; | |
733 | } else { | |
734 | am_sender = 1; | |
9486289c | 735 | |
a125c82a WD |
736 | /* rsync:// destination uses rsync server over direct socket */ |
737 | if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) { | |
738 | char *host, *path; | |
739 | ||
740 | host = argv[argc-1] + strlen(URL_PREFIX); | |
741 | p = strchr(host,'/'); | |
742 | if (p) { | |
743 | *p = 0; | |
744 | path = p+1; | |
745 | } else { | |
746 | path = ""; | |
747 | } | |
748 | p = strchr(host,':'); | |
749 | if (p) { | |
750 | rsync_port = atoi(p+1); | |
751 | *p = 0; | |
752 | } | |
753 | return start_socket_client(host, path, argc-1, argv); | |
754 | } | |
755 | ||
ca6c93f8 | 756 | p = find_colon(argv[argc-1]); |
5d6bcd44 AT |
757 | if (!p) { |
758 | local_server = 1; | |
75aeac44 | 759 | } else if (p[1] == ':') { /* double colon */ |
9486289c | 760 | *p = 0; |
75aeac44 WD |
761 | if (!shell_cmd) { |
762 | return start_socket_client(argv[argc-1], p+2, | |
763 | argc-1, argv); | |
764 | } | |
765 | p++; | |
766 | daemon_over_rsh = 1; | |
5d6bcd44 | 767 | } |
3591c066 AT |
768 | |
769 | if (argc < 2) { | |
770 | usage(FERROR); | |
65417579 | 771 | exit_cleanup(RERR_SYNTAX); |
3591c066 | 772 | } |
9486289c | 773 | |
5d6bcd44 AT |
774 | if (local_server) { |
775 | shell_machine = NULL; | |
776 | shell_path = argv[argc-1]; | |
777 | } else { | |
778 | *p = 0; | |
779 | shell_machine = argv[argc-1]; | |
780 | shell_path = p+1; | |
781 | } | |
782 | argc--; | |
783 | } | |
6902ed17 | 784 | } else { |
088aac85 DD |
785 | am_sender = 1; |
786 | local_server = 1; | |
787 | shell_path = argv[argc-1]; | |
6902ed17 MP |
788 | } |
789 | ||
5d6bcd44 AT |
790 | if (shell_machine) { |
791 | p = strchr(shell_machine,'@'); | |
792 | if (p) { | |
793 | *p = 0; | |
794 | shell_user = shell_machine; | |
795 | shell_machine = p+1; | |
796 | } | |
797 | } | |
798 | ||
799 | if (verbose > 3) { | |
9486289c | 800 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
5d6bcd44 AT |
801 | shell_cmd?shell_cmd:"", |
802 | shell_machine?shell_machine:"", | |
803 | shell_user?shell_user:"", | |
804 | shell_path?shell_path:""); | |
805 | } | |
806 | ||
f7632fc6 | 807 | if (!am_sender && argc > 1) { |
5d6bcd44 | 808 | usage(FERROR); |
65417579 | 809 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 810 | } |
27e3e9c9 AT |
811 | |
812 | if (argc == 0 && !am_sender) { | |
813 | extern int list_only; | |
814 | list_only = 1; | |
815 | } | |
5d6bcd44 | 816 | |
75aeac44 WD |
817 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
818 | &f_in,&f_out); | |
819 | ||
820 | /* if we're running an rsync server on the remote host over a | |
821 | remote shell command, we need to do the RSYNCD protocol first */ | |
822 | if (daemon_over_rsh) { | |
823 | int tmpret; | |
824 | tmpret = start_inband_exchange(shell_user, shell_path, | |
825 | f_in, f_out, argc); | |
826 | if (tmpret < 0) | |
827 | return tmpret; | |
828 | } | |
829 | ||
fc8a6b97 AT |
830 | ret = client_run(f_in, f_out, pid, argc, argv); |
831 | ||
832 | fflush(stdout); | |
833 | fflush(stderr); | |
834 | ||
835 | return ret; | |
5d6bcd44 AT |
836 | } |
837 | ||
366345fe | 838 | |
0f0ea7f7 | 839 | static RETSIGTYPE sigusr1_handler(int UNUSED(val)) { |
65417579 | 840 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
841 | } |
842 | ||
0f0ea7f7 | 843 | static RETSIGTYPE sigusr2_handler(int UNUSED(val)) { |
ff81e809 | 844 | extern int log_got_error; |
19b27a48 | 845 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
846 | _exit(0); |
847 | } | |
848 | ||
0f0ea7f7 | 849 | static RETSIGTYPE sigchld_handler(int UNUSED(val)) { |
029c1713 AT |
850 | #ifdef WNOHANG |
851 | while (waitpid(-1, NULL, WNOHANG) > 0) ; | |
852 | #endif | |
19b27a48 AT |
853 | } |
854 | ||
c0531332 MP |
855 | |
856 | /** | |
857 | * This routine catches signals and tries to send them to gdb. | |
858 | * | |
859 | * Because it's called from inside a signal handler it ought not to | |
860 | * use too many library routines. | |
861 | * | |
862 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
863 | * debugging without easy access to X. Perhaps use an environment | |
864 | * variable, or just call a script? | |
865 | * | |
866 | * @todo The /proc/ magic probably only works on Linux (and | |
867 | * Solaris?) Can we be more portable? | |
868 | **/ | |
869 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
870 | const char *get_panic_action(void) |
871 | { | |
872 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
873 | ||
874 | if (cmd_fmt) | |
875 | return cmd_fmt; | |
876 | else | |
877 | return "xterm -display :0 -T Panic -n Panic " | |
878 | "-e gdb /proc/%d/exe %d"; | |
879 | } | |
880 | ||
881 | ||
9fb3f7a9 MP |
882 | /** |
883 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
884 | * | |
885 | * This signal handler is only installed if we were configured with | |
886 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
887 | * should just look at the environment variable, but I'm a bit leery | |
888 | * of a signal sending us into a busy loop. | |
889 | **/ | |
c0531332 MP |
890 | static RETSIGTYPE rsync_panic_handler(int UNUSED(whatsig)) |
891 | { | |
892 | char cmd_buf[300]; | |
893 | int ret; | |
4fdc39dd MP |
894 | |
895 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
896 | getpid(), getpid()); |
897 | ||
898 | /* Unless we failed to execute gdb, we allow the process to | |
899 | * continue. I'm not sure if that's right. */ | |
900 | ret = system(cmd_buf); | |
901 | if (ret) | |
902 | _exit(ret); | |
903 | } | |
904 | #endif | |
905 | ||
906 | ||
5d6bcd44 | 907 | int main(int argc,char *argv[]) |
7a6421fa AT |
908 | { |
909 | extern int am_root; | |
910 | extern int orig_umask; | |
911 | extern int dry_run; | |
912 | extern int am_daemon; | |
913 | extern int am_server; | |
ff81e809 | 914 | int ret; |
088aac85 DD |
915 | extern int write_batch; |
916 | int orig_argc; | |
76f79ba7 | 917 | char **orig_argv; |
6902ed17 | 918 | |
088aac85 | 919 | orig_argc = argc; |
76f79ba7 | 920 | orig_argv = argv; |
5d6bcd44 | 921 | |
7a6421fa | 922 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 923 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 924 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
925 | #ifdef MAINTAINER_MODE |
926 | signal(SIGSEGV, rsync_panic_handler); | |
927 | signal(SIGFPE, rsync_panic_handler); | |
928 | signal(SIGABRT, rsync_panic_handler); | |
929 | signal(SIGBUS, rsync_panic_handler); | |
930 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 931 | |
7a6421fa AT |
932 | starttime = time(NULL); |
933 | am_root = (getuid() == 0); | |
c627d613 | 934 | |
a800434a AT |
935 | memset(&stats, 0, sizeof(stats)); |
936 | ||
df5e03da AT |
937 | if (argc < 2) { |
938 | usage(FERROR); | |
65417579 | 939 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
940 | } |
941 | ||
7a6421fa AT |
942 | /* we set a 0 umask so that correct file permissions can be |
943 | carried across */ | |
944 | orig_umask = (int)umask(0); | |
5d6bcd44 | 945 | |
50135767 | 946 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
305ab133 MP |
947 | /* FIXME: We ought to call the same error-handling |
948 | * code here, rather than relying on getopt. */ | |
50135767 | 949 | option_error(); |
65417579 | 950 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 951 | } |
5d6bcd44 | 952 | |
7a6421fa | 953 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 954 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 955 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 956 | |
34758d5c MP |
957 | /* Ignore SIGPIPE; we consistently check error codes and will |
958 | * see the EPIPE. */ | |
959 | signal(SIGPIPE, SIG_IGN); | |
960 | ||
c226b7c2 DD |
961 | /* Initialize push_dir here because on some old systems getcwd |
962 | (implemented by forking "pwd" and reading its output) doesn't | |
963 | work when there are other child processes. Also, on all systems | |
964 | that implement getcwd that way "pwd" can't be found after chroot. */ | |
965 | push_dir(NULL,0); | |
966 | ||
088aac85 | 967 | if (write_batch && !am_server) { |
76f79ba7 | 968 | write_batch_argvs_file(orig_argc, orig_argv); |
6902ed17 MP |
969 | } |
970 | ||
75aeac44 | 971 | if (am_daemon && !am_server) |
7a6421fa | 972 | return daemon_main(); |
f0fca04e | 973 | |
08ac228f AT |
974 | if (argc < 1) { |
975 | usage(FERROR); | |
65417579 | 976 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
977 | } |
978 | ||
7a6421fa AT |
979 | if (dry_run) |
980 | verbose = MAX(verbose,1); | |
c627d613 | 981 | |
cbbe4892 | 982 | #ifndef SUPPORT_LINKS |
7a6421fa AT |
983 | if (!am_server && preserve_links) { |
984 | rprintf(FERROR,"ERROR: symbolic links not supported\n"); | |
65417579 | 985 | exit_cleanup(RERR_UNSUPPORTED); |
7a6421fa | 986 | } |
cbbe4892 AT |
987 | #endif |
988 | ||
7a6421fa | 989 | if (am_server) { |
f0359dd0 AT |
990 | set_nonblocking(STDIN_FILENO); |
991 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
992 | if (am_daemon) |
993 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
994 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
995 | } | |
c627d613 | 996 | |
ff81e809 | 997 | ret = start_client(argc, argv); |
088aac85 | 998 | if (ret == -1) |
9098bbf3 | 999 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1000 | else |
9098bbf3 MP |
1001 | exit_cleanup(ret); |
1002 | ||
1003 | exit(ret); | |
1004 | /* NOTREACHED */ | |
c627d613 | 1005 | } |