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 | |
ee7118a8 DD |
29 | /* there's probably never more than at most 2 outstanding child processes, |
30 | * but set it higher just in case. | |
31 | */ | |
32 | #define MAXCHILDPROCS 5 | |
33 | ||
34 | struct pid_status { | |
35 | pid_t pid; | |
36 | int status; | |
37 | } pid_stat_table[MAXCHILDPROCS]; | |
38 | ||
e5a2b854 | 39 | static void show_malloc_stats(void); |
82980a23 AT |
40 | |
41 | /**************************************************************************** | |
42 | wait for a process to exit, calling io_flush while waiting | |
43 | ****************************************************************************/ | |
44 | void wait_process(pid_t pid, int *status) | |
45 | { | |
ee7118a8 DD |
46 | pid_t waited_pid; |
47 | int cnt; | |
48 | ||
49 | while ((waited_pid = waitpid(pid, status, WNOHANG)) == 0) { | |
a24c6870 | 50 | msleep(20); |
82980a23 AT |
51 | io_flush(); |
52 | } | |
50135767 | 53 | |
ee7118a8 DD |
54 | if ((waited_pid == -1) && (errno == ECHILD)) { |
55 | /* status of requested child no longer available. | |
56 | * check to see if it was processed by the sigchld_handler. | |
57 | */ | |
58 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
59 | if (pid == pid_stat_table[cnt].pid) { | |
60 | *status = pid_stat_table[cnt].status; | |
61 | pid_stat_table[cnt].pid = 0; | |
62 | break; | |
63 | } | |
64 | } | |
65 | } | |
66 | ||
50135767 MP |
67 | /* TODO: If the child exited on a signal, then log an |
68 | * appropriate error message. Perhaps we should also accept a | |
69 | * message describing the purpose of the child. Also indicate | |
70 | * this to the caller so that thhey know something went | |
71 | * wrong. */ | |
82980a23 AT |
72 | *status = WEXITSTATUS(*status); |
73 | } | |
74 | ||
c627d613 AT |
75 | static void report(int f) |
76 | { | |
7a6421fa AT |
77 | time_t t = time(NULL); |
78 | extern int am_server; | |
79 | extern int am_sender; | |
248fbb8c | 80 | extern int am_daemon; |
a800434a | 81 | extern int do_stats; |
17d31b38 DD |
82 | extern int remote_version; |
83 | int send_stats; | |
7a6421fa | 84 | |
5c15e29f MP |
85 | if (do_stats) { |
86 | /* These come out from every process */ | |
87 | show_malloc_stats(); | |
86943126 | 88 | show_flist_stats(); |
5c15e29f MP |
89 | } |
90 | ||
248fbb8c | 91 | if (am_daemon) { |
a9766ef1 | 92 | log_exit(0, __FILE__, __LINE__); |
7b372642 | 93 | if (f == -1 || !am_sender) return; |
248fbb8c AT |
94 | } |
95 | ||
ebb00c8e | 96 | send_stats = verbose || (remote_version >= 20); |
e19452a9 | 97 | if (am_server) { |
17d31b38 | 98 | if (am_sender && send_stats) { |
23c5aef1 DD |
99 | int64 w; |
100 | /* store total_written in a temporary | |
101 | because write_longint changes it */ | |
102 | w = stats.total_written; | |
e19452a9 | 103 | write_longint(f,stats.total_read); |
23c5aef1 | 104 | write_longint(f,w); |
e19452a9 DD |
105 | write_longint(f,stats.total_size); |
106 | } | |
7a6421fa AT |
107 | return; |
108 | } | |
e19452a9 DD |
109 | |
110 | /* this is the client */ | |
111 | ||
17d31b38 | 112 | if (!am_sender && send_stats) { |
23c5aef1 | 113 | int64 r; |
a800434a | 114 | stats.total_written = read_longint(f); |
23c5aef1 DD |
115 | /* store total_read in a temporary, read_longint changes it */ |
116 | r = read_longint(f); | |
a800434a | 117 | stats.total_size = read_longint(f); |
23c5aef1 | 118 | stats.total_read = r; |
a800434a AT |
119 | } |
120 | ||
121 | if (do_stats) { | |
17d31b38 DD |
122 | if (!am_sender && !send_stats) { |
123 | /* missing the bytes written by the generator */ | |
ebb00c8e | 124 | rprintf(FINFO, "\nCannot show stats as receiver because remote protocol version is less than 20\n"); |
17d31b38 DD |
125 | rprintf(FINFO, "Use --stats -v to show stats\n"); |
126 | return; | |
127 | } | |
1f658d42 AT |
128 | rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files); |
129 | rprintf(FINFO,"Number of files transferred: %d\n", | |
a800434a | 130 | stats.num_transferred_files); |
1f658d42 | 131 | rprintf(FINFO,"Total file size: %.0f bytes\n", |
a800434a | 132 | (double)stats.total_size); |
1f658d42 | 133 | rprintf(FINFO,"Total transferred file size: %.0f bytes\n", |
a800434a | 134 | (double)stats.total_transferred_size); |
1f658d42 | 135 | rprintf(FINFO,"Literal data: %.0f bytes\n", |
a800434a | 136 | (double)stats.literal_data); |
1f658d42 | 137 | rprintf(FINFO,"Matched data: %.0f bytes\n", |
a800434a | 138 | (double)stats.matched_data); |
1f658d42 AT |
139 | rprintf(FINFO,"File list size: %d\n", stats.flist_size); |
140 | rprintf(FINFO,"Total bytes written: %.0f\n", | |
a800434a | 141 | (double)stats.total_written); |
1f658d42 | 142 | rprintf(FINFO,"Total bytes read: %.0f\n\n", |
a800434a | 143 | (double)stats.total_read); |
7a6421fa AT |
144 | } |
145 | ||
e19452a9 DD |
146 | if (verbose || do_stats) { |
147 | rprintf(FINFO,"wrote %.0f bytes read %.0f bytes %.2f bytes/sec\n", | |
148 | (double)stats.total_written, | |
149 | (double)stats.total_read, | |
150 | (stats.total_written+stats.total_read)/(0.5 + (t-starttime))); | |
151 | rprintf(FINFO,"total size is %.0f speedup is %.2f\n", | |
152 | (double)stats.total_size, | |
153 | (1.0*stats.total_size)/(stats.total_written+stats.total_read)); | |
154 | } | |
fc8a6b97 AT |
155 | |
156 | fflush(stdout); | |
157 | fflush(stderr); | |
c627d613 AT |
158 | } |
159 | ||
160 | ||
e5a2b854 MP |
161 | /** |
162 | * If our C library can get malloc statistics, then show them to FINFO | |
163 | **/ | |
164 | static void show_malloc_stats(void) | |
165 | { | |
166 | #ifdef HAVE_MALLINFO | |
167 | struct mallinfo mi; | |
5c15e29f MP |
168 | extern int am_server; |
169 | extern int am_sender; | |
170 | extern int am_daemon; | |
e5a2b854 MP |
171 | |
172 | mi = mallinfo(); | |
173 | ||
5c15e29f MP |
174 | rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n", |
175 | getpid(), | |
176 | am_server ? "server " : "", | |
177 | am_daemon ? "daemon " : "", | |
178 | am_sender ? "sender" : "receiver"); | |
e5a2b854 MP |
179 | rprintf(FINFO, " arena: %10d (bytes from sbrk)\n", mi.arena); |
180 | rprintf(FINFO, " ordblks: %10d (chunks not in use)\n", mi.ordblks); | |
181 | rprintf(FINFO, " smblks: %10d\n", mi.smblks); | |
182 | rprintf(FINFO, " hblks: %10d (chunks from mmap)\n", mi.hblks); | |
183 | rprintf(FINFO, " hblkhd: %10d (bytes from mmap)\n", mi.hblkhd); | |
184 | rprintf(FINFO, " usmblks: %10d\n", mi.usmblks); | |
185 | rprintf(FINFO, " fsmblks: %10d\n", mi.fsmblks); | |
186 | rprintf(FINFO, " uordblks: %10d (bytes used)\n", mi.uordblks); | |
187 | rprintf(FINFO, " fordblks: %10d (bytes free)\n", mi.fordblks); | |
188 | rprintf(FINFO, " keepcost: %10d (bytes in releasable chunk)\n", mi.keepcost); | |
189 | #endif /* HAVE_MALLINFO */ | |
190 | } | |
191 | ||
192 | ||
0882faa2 | 193 | /* Start the remote shell. cmd may be NULL to use the default. */ |
19b27a48 | 194 | static pid_t do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out) |
c627d613 | 195 | { |
366345fe | 196 | char *args[100]; |
19b27a48 AT |
197 | int i,argc=0; |
198 | pid_t ret; | |
366345fe | 199 | char *tok,*dir=NULL; |
bb4aa89c | 200 | int dash_l_set = 0; |
7a6421fa AT |
201 | extern int local_server; |
202 | extern char *rsync_path; | |
e384bfbd | 203 | extern int blocking_io; |
75aeac44 | 204 | extern int daemon_over_rsh; |
6902ed17 | 205 | extern int read_batch; |
366345fe | 206 | |
088aac85 | 207 | if (!read_batch && !local_server) { |
366345fe AT |
208 | if (!cmd) |
209 | cmd = getenv(RSYNC_RSH_ENV); | |
210 | if (!cmd) | |
211 | cmd = RSYNC_RSH; | |
212 | cmd = strdup(cmd); | |
213 | if (!cmd) | |
214 | goto oom; | |
215 | ||
216 | for (tok=strtok(cmd," ");tok;tok=strtok(NULL," ")) { | |
217 | args[argc++] = tok; | |
218 | } | |
c627d613 | 219 | |
bb4aa89c WD |
220 | /* check to see if we've already been given '-l user' in |
221 | the remote-shell command */ | |
222 | for (i = 0; i < argc-1; i++) { | |
223 | if (!strcmp(args[i], "-l") && args[i+1][0] != '-') | |
224 | dash_l_set = 1; | |
225 | } | |
226 | ||
7b8356d0 | 227 | #if HAVE_REMSH |
366345fe AT |
228 | /* remsh (on HPUX) takes the arguments the other way around */ |
229 | args[argc++] = machine; | |
bb4aa89c | 230 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
231 | args[argc++] = "-l"; |
232 | args[argc++] = user; | |
233 | } | |
7b8356d0 | 234 | #else |
bb4aa89c | 235 | if (user && !(daemon_over_rsh && dash_l_set)) { |
366345fe AT |
236 | args[argc++] = "-l"; |
237 | args[argc++] = user; | |
238 | } | |
239 | args[argc++] = machine; | |
7b8356d0 | 240 | #endif |
c627d613 | 241 | |
366345fe | 242 | args[argc++] = rsync_path; |
c627d613 | 243 | |
93689aa5 DD |
244 | if ((blocking_io == -1) && (strcmp(cmd, RSYNC_RSH) == 0)) |
245 | blocking_io = 1; | |
e384bfbd | 246 | |
93689aa5 | 247 | server_options(args,&argc); |
e384bfbd | 248 | |
366345fe | 249 | } |
c627d613 | 250 | |
366345fe | 251 | args[argc++] = "."; |
76076c4b | 252 | |
75aeac44 | 253 | if (!daemon_over_rsh && path && *path) |
366345fe | 254 | args[argc++] = path; |
c627d613 | 255 | |
366345fe | 256 | args[argc] = NULL; |
c627d613 | 257 | |
366345fe | 258 | if (verbose > 3) { |
9486289c | 259 | rprintf(FINFO,"cmd="); |
366345fe | 260 | for (i=0;i<argc;i++) |
9486289c AT |
261 | rprintf(FINFO,"%s ",args[i]); |
262 | rprintf(FINFO,"\n"); | |
366345fe AT |
263 | } |
264 | ||
265 | if (local_server) { | |
6902ed17 | 266 | if (read_batch) |
088aac85 | 267 | create_flist_from_batch(); /* sets batch_flist */ |
25d34a5c | 268 | ret = local_child(argc, args, f_in, f_out, child_main); |
366345fe AT |
269 | } else { |
270 | ret = piped_child(args,f_in,f_out); | |
271 | } | |
c627d613 | 272 | |
366345fe | 273 | if (dir) free(dir); |
82306bf6 | 274 | |
366345fe | 275 | return ret; |
c627d613 AT |
276 | |
277 | oom: | |
366345fe AT |
278 | out_of_memory("do_cmd"); |
279 | return 0; /* not reached */ | |
c627d613 AT |
280 | } |
281 | ||
282 | ||
283 | ||
284 | ||
285 | static char *get_local_name(struct file_list *flist,char *name) | |
286 | { | |
7a6421fa AT |
287 | STRUCT_STAT st; |
288 | extern int orig_umask; | |
c627d613 | 289 | |
c95da96a AT |
290 | if (verbose > 2) |
291 | rprintf(FINFO,"get_local_name count=%d %s\n", | |
1f0610ef DD |
292 | flist->count, NS(name)); |
293 | ||
294 | if (!name) | |
295 | return NULL; | |
c95da96a | 296 | |
1ff5450d AT |
297 | if (do_stat(name,&st) == 0) { |
298 | if (S_ISDIR(st.st_mode)) { | |
5243c216 AT |
299 | if (!push_dir(name, 0)) { |
300 | rprintf(FERROR,"push_dir %s : %s (1)\n", | |
1ff5450d | 301 | name,strerror(errno)); |
65417579 | 302 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
303 | } |
304 | return NULL; | |
305 | } | |
306 | if (flist->count > 1) { | |
307 | rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n"); | |
65417579 | 308 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
309 | } |
310 | return name; | |
311 | } | |
312 | ||
cec8aa77 | 313 | if (flist->count <= 1) |
1ff5450d AT |
314 | return name; |
315 | ||
1ff5450d | 316 | if (do_mkdir(name,0777 & ~orig_umask) != 0) { |
b84ba896 MP |
317 | rprintf(FERROR, RSYNC_NAME ": mkdir %s: %s\n", |
318 | name, strerror(errno)); | |
65417579 | 319 | exit_cleanup(RERR_FILEIO); |
1ff5450d | 320 | } else { |
b536f47e AT |
321 | if (verbose > 0) |
322 | rprintf(FINFO,"created directory %s\n",name); | |
1ff5450d AT |
323 | } |
324 | ||
5243c216 | 325 | if (!push_dir(name, 0)) { |
b84ba896 MP |
326 | rprintf(FERROR, RSYNC_NAME ": push_dir %s: %s\n", |
327 | name, strerror(errno)); | |
65417579 | 328 | exit_cleanup(RERR_FILESELECT); |
1ff5450d AT |
329 | } |
330 | ||
331 | return NULL; | |
c627d613 AT |
332 | } |
333 | ||
334 | ||
335 | ||
336 | ||
9486289c | 337 | static void do_server_sender(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 338 | { |
7a6421fa AT |
339 | int i; |
340 | struct file_list *flist; | |
341 | char *dir = argv[0]; | |
342 | extern int relative_paths; | |
7a6421fa | 343 | extern int recurse; |
adc19c98 | 344 | extern int remote_version; |
c627d613 | 345 | |
7a6421fa AT |
346 | if (verbose > 2) |
347 | rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid()); | |
c627d613 | 348 | |
5243c216 AT |
349 | if (!relative_paths && !push_dir(dir, 0)) { |
350 | rprintf(FERROR,"push_dir %s: %s (3)\n",dir,strerror(errno)); | |
65417579 | 351 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
352 | } |
353 | argc--; | |
354 | argv++; | |
c627d613 | 355 | |
7a6421fa AT |
356 | if (strcmp(dir,".")) { |
357 | int l = strlen(dir); | |
358 | if (strcmp(dir,"/") == 0) | |
359 | l = 0; | |
360 | for (i=0;i<argc;i++) | |
361 | argv[i] += l+1; | |
362 | } | |
c627d613 | 363 | |
7a6421fa AT |
364 | if (argc == 0 && recurse) { |
365 | argc=1; | |
366 | argv--; | |
367 | argv[0] = "."; | |
368 | } | |
369 | ||
7a6421fa | 370 | flist = send_file_list(f_out,argc,argv); |
8d9dc9f9 AT |
371 | if (!flist || flist->count == 0) { |
372 | exit_cleanup(0); | |
373 | } | |
374 | ||
7a6421fa | 375 | send_files(flist,f_out,f_in); |
3d382777 | 376 | io_flush(); |
7a6421fa | 377 | report(f_out); |
adc19c98 AT |
378 | if (remote_version >= 24) { |
379 | /* final goodbye message */ | |
380 | read_int(f_in); | |
381 | } | |
8d9dc9f9 | 382 | io_flush(); |
7a6421fa | 383 | exit_cleanup(0); |
c627d613 AT |
384 | } |
385 | ||
386 | ||
dc5ddbcc AT |
387 | static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name) |
388 | { | |
d186eb1a AT |
389 | int pid; |
390 | int status=0; | |
391 | int recv_pipe[2]; | |
554e0a8d | 392 | int error_pipe[2]; |
d186eb1a | 393 | extern int preserve_hard_links; |
6957ae33 AT |
394 | extern int delete_after; |
395 | extern int recurse; | |
396 | extern int delete_mode; | |
8ada7518 | 397 | extern int remote_version; |
dc5ddbcc | 398 | |
d186eb1a AT |
399 | if (preserve_hard_links) |
400 | init_hard_links(flist); | |
dc5ddbcc | 401 | |
6957ae33 AT |
402 | if (!delete_after) { |
403 | /* I moved this here from recv_files() to prevent a race condition */ | |
404 | if (recurse && delete_mode && !local_name && flist->count>0) { | |
405 | delete_files(flist); | |
406 | } | |
407 | } | |
408 | ||
08f15335 | 409 | if (fd_pair(recv_pipe) < 0) { |
d186eb1a | 410 | rprintf(FERROR,"pipe failed in do_recv\n"); |
65417579 | 411 | exit_cleanup(RERR_SOCKETIO); |
d186eb1a | 412 | } |
554e0a8d | 413 | |
08f15335 | 414 | if (fd_pair(error_pipe) < 0) { |
554e0a8d AT |
415 | rprintf(FERROR,"error pipe failed in do_recv\n"); |
416 | exit_cleanup(RERR_SOCKETIO); | |
417 | } | |
c6e7fcb4 | 418 | |
8d9dc9f9 | 419 | io_flush(); |
c6e7fcb4 | 420 | |
d186eb1a | 421 | if ((pid=do_fork()) == 0) { |
e08c9610 | 422 | close(recv_pipe[0]); |
554e0a8d | 423 | close(error_pipe[0]); |
e08c9610 AT |
424 | if (f_in != f_out) close(f_out); |
425 | ||
554e0a8d AT |
426 | /* we can't let two processes write to the socket at one time */ |
427 | io_multiplexing_close(); | |
428 | ||
429 | /* set place to send errors */ | |
430 | set_error_fd(error_pipe[1]); | |
431 | ||
e08c9610 | 432 | recv_files(f_in,flist,local_name,recv_pipe[1]); |
3d382777 | 433 | io_flush(); |
ba5e128d | 434 | report(f_in); |
e08c9610 | 435 | |
8b35435f AT |
436 | write_int(recv_pipe[1],1); |
437 | close(recv_pipe[1]); | |
8d9dc9f9 | 438 | io_flush(); |
4a748188 | 439 | /* finally we go to sleep until our parent kills us |
27e3e9c9 | 440 | with a USR2 signal. We sleep for a short time as on |
4a748188 | 441 | some OSes a signal won't interrupt a sleep! */ |
e1bd49d6 MP |
442 | while (msleep(20)) |
443 | ; | |
d186eb1a | 444 | } |
dc5ddbcc | 445 | |
e08c9610 | 446 | close(recv_pipe[1]); |
554e0a8d | 447 | close(error_pipe[1]); |
e08c9610 | 448 | if (f_in != f_out) close(f_in); |
e1b3d5c4 | 449 | |
b3e10ed7 AT |
450 | io_start_buffering(f_out); |
451 | ||
554e0a8d AT |
452 | io_set_error_fd(error_pipe[0]); |
453 | ||
e08c9610 | 454 | generate_files(f_out,flist,local_name,recv_pipe[0]); |
8d9dc9f9 | 455 | |
8b35435f AT |
456 | read_int(recv_pipe[0]); |
457 | close(recv_pipe[0]); | |
8ada7518 AT |
458 | if (remote_version >= 24) { |
459 | /* send a final goodbye message */ | |
460 | write_int(f_out, -1); | |
461 | } | |
8d9dc9f9 | 462 | io_flush(); |
8ada7518 | 463 | |
8b35435f | 464 | kill(pid, SIGUSR2); |
d79d1c69 | 465 | wait_process(pid, &status); |
d186eb1a | 466 | return status; |
dc5ddbcc AT |
467 | } |
468 | ||
c627d613 | 469 | |
9486289c | 470 | static void do_server_recv(int f_in, int f_out, int argc,char *argv[]) |
c627d613 | 471 | { |
7a6421fa AT |
472 | int status; |
473 | struct file_list *flist; | |
474 | char *local_name=NULL; | |
475 | char *dir = NULL; | |
476 | extern int delete_mode; | |
b33b791e | 477 | extern int delete_excluded; |
7a6421fa | 478 | extern int am_daemon; |
09b7f5db AT |
479 | extern int module_id; |
480 | extern int am_sender; | |
088aac85 DD |
481 | extern int read_batch; |
482 | extern struct file_list *batch_flist; | |
f0fca04e | 483 | |
7a6421fa AT |
484 | if (verbose > 2) |
485 | rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid()); | |
09b7f5db AT |
486 | |
487 | if (am_daemon && lp_read_only(module_id) && !am_sender) { | |
488 | rprintf(FERROR,"ERROR: module is read only\n"); | |
489 | exit_cleanup(RERR_SYNTAX); | |
490 | return; | |
491 | } | |
492 | ||
7a6421fa | 493 | |
7a6421fa AT |
494 | if (argc > 0) { |
495 | dir = argv[0]; | |
496 | argc--; | |
497 | argv++; | |
5243c216 AT |
498 | if (!am_daemon && !push_dir(dir, 0)) { |
499 | rprintf(FERROR,"push_dir %s : %s (4)\n", | |
7a6421fa | 500 | dir,strerror(errno)); |
65417579 | 501 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
502 | } |
503 | } | |
c627d613 | 504 | |
b33b791e | 505 | if (delete_mode && !delete_excluded) |
7a6421fa | 506 | recv_exclude_list(f_in); |
c627d613 | 507 | |
088aac85 | 508 | if (read_batch) |
6902ed17 MP |
509 | flist = batch_flist; |
510 | else | |
511 | flist = recv_file_list(f_in); | |
4c36a13e AT |
512 | if (!flist) { |
513 | rprintf(FERROR,"server_recv: recv_file_list error\n"); | |
65417579 | 514 | exit_cleanup(RERR_FILESELECT); |
7a6421fa AT |
515 | } |
516 | ||
517 | if (argc > 0) { | |
518 | if (strcmp(dir,".")) { | |
519 | argv[0] += strlen(dir); | |
520 | if (argv[0][0] == '/') argv[0]++; | |
521 | } | |
522 | local_name = get_local_name(flist,argv[0]); | |
523 | } | |
c627d613 | 524 | |
7a6421fa AT |
525 | status = do_recv(f_in,f_out,flist,local_name); |
526 | exit_cleanup(status); | |
c627d613 AT |
527 | } |
528 | ||
529 | ||
734a94a2 | 530 | int child_main(int argc, char *argv[]) |
25d34a5c MP |
531 | { |
532 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); | |
734a94a2 | 533 | return 0; |
25d34a5c MP |
534 | } |
535 | ||
536 | ||
9486289c | 537 | void start_server(int f_in, int f_out, int argc, char *argv[]) |
366345fe | 538 | { |
7a6421fa AT |
539 | extern int cvs_exclude; |
540 | extern int am_sender; | |
ff41a59f | 541 | extern int remote_version; |
088aac85 | 542 | extern int read_batch; |
ff41a59f | 543 | |
6d7b6081 AT |
544 | setup_protocol(f_out, f_in); |
545 | ||
f0359dd0 AT |
546 | set_nonblocking(f_in); |
547 | set_nonblocking(f_out); | |
548 | ||
ff41a59f AT |
549 | if (remote_version >= 23) |
550 | io_start_multiplex_out(f_out); | |
7a6421fa | 551 | |
7a6421fa | 552 | if (am_sender) { |
088aac85 | 553 | if (!read_batch) { |
6902ed17 MP |
554 | recv_exclude_list(f_in); |
555 | if (cvs_exclude) | |
7a6421fa | 556 | add_cvs_excludes(); |
6902ed17 | 557 | } |
7a6421fa AT |
558 | do_server_sender(f_in, f_out, argc, argv); |
559 | } else { | |
560 | do_server_recv(f_in, f_out, argc, argv); | |
561 | } | |
562 | exit_cleanup(0); | |
366345fe AT |
563 | } |
564 | ||
0ba48136 MP |
565 | |
566 | /* | |
567 | * This is called once the connection has been negotiated. It is used | |
568 | * for rsyncd, remote-shell, and local connections. | |
569 | */ | |
19b27a48 | 570 | int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[]) |
9486289c | 571 | { |
088aac85 | 572 | struct file_list *flist = NULL; |
9486289c AT |
573 | int status = 0, status2 = 0; |
574 | char *local_name = NULL; | |
7a6421fa | 575 | extern int am_sender; |
ff41a59f | 576 | extern int remote_version; |
19b27a48 | 577 | extern pid_t cleanup_child_pid; |
088aac85 DD |
578 | extern int write_batch; |
579 | extern int read_batch; | |
580 | extern struct file_list *batch_flist; | |
19b27a48 AT |
581 | |
582 | cleanup_child_pid = pid; | |
6902ed17 | 583 | if (read_batch) |
088aac85 | 584 | flist = batch_flist; |
ff41a59f | 585 | |
f0359dd0 AT |
586 | set_nonblocking(f_in); |
587 | set_nonblocking(f_out); | |
588 | ||
6d7b6081 AT |
589 | setup_protocol(f_out,f_in); |
590 | ||
ff41a59f AT |
591 | if (remote_version >= 23) |
592 | io_start_multiplex_in(f_in); | |
9486289c AT |
593 | |
594 | if (am_sender) { | |
7a6421fa AT |
595 | extern int cvs_exclude; |
596 | extern int delete_mode; | |
b33b791e | 597 | extern int delete_excluded; |
9486289c AT |
598 | if (cvs_exclude) |
599 | add_cvs_excludes(); | |
b33b791e | 600 | if (delete_mode && !delete_excluded) |
9486289c | 601 | send_exclude_list(f_out); |
6902ed17 MP |
602 | if (!read_batch) /* dw -- don't write to pipe */ |
603 | flist = send_file_list(f_out,argc,argv); | |
9486289c AT |
604 | if (verbose > 3) |
605 | rprintf(FINFO,"file list sent\n"); | |
e1b3d5c4 | 606 | |
9486289c | 607 | send_files(flist,f_out,f_in); |
6c65e146 AT |
608 | if (remote_version >= 24) { |
609 | /* final goodbye message */ | |
610 | read_int(f_in); | |
611 | } | |
9486289c AT |
612 | if (pid != -1) { |
613 | if (verbose > 3) | |
08a740ff | 614 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); |
8d9dc9f9 | 615 | io_flush(); |
d79d1c69 | 616 | wait_process(pid, &status); |
9486289c | 617 | } |
3d382777 | 618 | report(-1); |
9486289c AT |
619 | exit_cleanup(status); |
620 | } | |
f7632fc6 | 621 | |
27e3e9c9 AT |
622 | if (argc == 0) { |
623 | extern int list_only; | |
624 | list_only = 1; | |
625 | } | |
9486289c | 626 | |
088aac85 | 627 | if (!write_batch) |
6902ed17 | 628 | send_exclude_list(f_out); |
9486289c AT |
629 | |
630 | flist = recv_file_list(f_in); | |
631 | if (!flist || flist->count == 0) { | |
796d484b MP |
632 | rprintf(FINFO, "client: nothing to do: " |
633 | "perhaps you need to specify some filenames or " | |
634 | "the --recursive option?\n"); | |
9486289c AT |
635 | exit_cleanup(0); |
636 | } | |
637 | ||
638 | local_name = get_local_name(flist,argv[0]); | |
639 | ||
640 | status2 = do_recv(f_in,f_out,flist,local_name); | |
641 | ||
9486289c | 642 | if (pid != -1) { |
8d9dc9f9 | 643 | if (verbose > 3) |
08a740ff | 644 | rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid); |
8d9dc9f9 | 645 | io_flush(); |
d79d1c69 | 646 | wait_process(pid, &status); |
9486289c AT |
647 | } |
648 | ||
ff81e809 | 649 | return MAX(status, status2); |
9486289c AT |
650 | } |
651 | ||
ca6c93f8 AT |
652 | static char *find_colon(char *s) |
653 | { | |
654 | char *p, *p2; | |
655 | ||
656 | p = strchr(s,':'); | |
657 | if (!p) return NULL; | |
658 | ||
659 | /* now check to see if there is a / in the string before the : - if there is then | |
660 | discard the colon on the assumption that the : is part of a filename */ | |
661 | p2 = strchr(s,'/'); | |
662 | if (p2 && p2 < p) return NULL; | |
663 | ||
664 | return p; | |
665 | } | |
9486289c | 666 | |
0ba48136 | 667 | |
7169bb4a MP |
668 | static int copy_argv (char *argv[]) |
669 | { | |
670 | int i; | |
671 | ||
672 | for (i = 0; argv[i]; i++) { | |
673 | if (!(argv[i] = strdup(argv[i]))) { | |
674 | rprintf (FERROR, "out of memory at %s(%d)\n", | |
675 | __FILE__, __LINE__); | |
676 | return RERR_MALLOC; | |
677 | } | |
678 | } | |
679 | ||
680 | return 0; | |
681 | } | |
682 | ||
683 | ||
c1a04ecb | 684 | /** |
0ba48136 MP |
685 | * Start a client for either type of remote connection. Work out |
686 | * whether the arguments request a remote shell or rsyncd connection, | |
687 | * and call the appropriate connection function, then run_client. | |
0b4af330 MP |
688 | * |
689 | * Calls either start_socket_client (for sockets) or do_cmd and | |
690 | * client_run (for ssh). | |
c1a04ecb | 691 | **/ |
fc8a6b97 | 692 | static int start_client(int argc, char *argv[]) |
5d6bcd44 AT |
693 | { |
694 | char *p; | |
695 | char *shell_machine = NULL; | |
696 | char *shell_path = NULL; | |
697 | char *shell_user = NULL; | |
19b27a48 AT |
698 | int ret; |
699 | pid_t pid; | |
5d6bcd44 | 700 | int f_in,f_out; |
7a6421fa AT |
701 | extern int local_server; |
702 | extern int am_sender; | |
703 | extern char *shell_cmd; | |
2acf81eb | 704 | extern int rsync_port; |
75aeac44 | 705 | extern int daemon_over_rsh; |
6902ed17 | 706 | extern int read_batch; |
7169bb4a MP |
707 | int rc; |
708 | ||
709 | /* Don't clobber argv[] so that ps(1) can still show the right | |
710 | command line. */ | |
75aeac44 | 711 | if ((rc = copy_argv(argv))) |
7169bb4a | 712 | return rc; |
5d6bcd44 | 713 | |
75aeac44 | 714 | /* rsync:// always uses rsync server over direct socket connection */ |
7169bb4a | 715 | if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) { |
f7632fc6 AT |
716 | char *host, *path; |
717 | ||
7169bb4a | 718 | host = argv[0] + strlen(URL_PREFIX); |
f7632fc6 AT |
719 | p = strchr(host,'/'); |
720 | if (p) { | |
721 | *p = 0; | |
722 | path = p+1; | |
723 | } else { | |
a125c82a | 724 | path = ""; |
f7632fc6 | 725 | } |
2acf81eb DD |
726 | p = strchr(host,':'); |
727 | if (p) { | |
728 | rsync_port = atoi(p+1); | |
729 | *p = 0; | |
730 | } | |
f7632fc6 AT |
731 | return start_socket_client(host, path, argc-1, argv+1); |
732 | } | |
733 | ||
088aac85 | 734 | if (!read_batch) { |
a125c82a | 735 | p = find_colon(argv[0]); |
5d6bcd44 AT |
736 | |
737 | if (p) { | |
c1a04ecb | 738 | if (p[1] == ':') { /* double colon */ |
9486289c | 739 | *p = 0; |
75aeac44 WD |
740 | if (!shell_cmd) { |
741 | return start_socket_client(argv[0], p+2, | |
742 | argc-1, argv+1); | |
743 | } | |
744 | p++; | |
745 | daemon_over_rsh = 1; | |
9486289c | 746 | } |
3591c066 | 747 | |
f7632fc6 | 748 | if (argc < 1) { |
3591c066 | 749 | usage(FERROR); |
65417579 | 750 | exit_cleanup(RERR_SYNTAX); |
3591c066 AT |
751 | } |
752 | ||
5d6bcd44 AT |
753 | am_sender = 0; |
754 | *p = 0; | |
7169bb4a | 755 | shell_machine = argv[0]; |
5d6bcd44 AT |
756 | shell_path = p+1; |
757 | argc--; | |
758 | argv++; | |
759 | } else { | |
760 | am_sender = 1; | |
9486289c | 761 | |
a125c82a WD |
762 | /* rsync:// destination uses rsync server over direct socket */ |
763 | if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) { | |
764 | char *host, *path; | |
765 | ||
766 | host = argv[argc-1] + strlen(URL_PREFIX); | |
767 | p = strchr(host,'/'); | |
768 | if (p) { | |
769 | *p = 0; | |
770 | path = p+1; | |
771 | } else { | |
772 | path = ""; | |
773 | } | |
774 | p = strchr(host,':'); | |
775 | if (p) { | |
776 | rsync_port = atoi(p+1); | |
777 | *p = 0; | |
778 | } | |
779 | return start_socket_client(host, path, argc-1, argv); | |
780 | } | |
781 | ||
ca6c93f8 | 782 | p = find_colon(argv[argc-1]); |
5d6bcd44 AT |
783 | if (!p) { |
784 | local_server = 1; | |
75aeac44 | 785 | } else if (p[1] == ':') { /* double colon */ |
9486289c | 786 | *p = 0; |
75aeac44 WD |
787 | if (!shell_cmd) { |
788 | return start_socket_client(argv[argc-1], p+2, | |
789 | argc-1, argv); | |
790 | } | |
791 | p++; | |
792 | daemon_over_rsh = 1; | |
5d6bcd44 | 793 | } |
3591c066 AT |
794 | |
795 | if (argc < 2) { | |
796 | usage(FERROR); | |
65417579 | 797 | exit_cleanup(RERR_SYNTAX); |
3591c066 | 798 | } |
9486289c | 799 | |
5d6bcd44 AT |
800 | if (local_server) { |
801 | shell_machine = NULL; | |
802 | shell_path = argv[argc-1]; | |
803 | } else { | |
804 | *p = 0; | |
805 | shell_machine = argv[argc-1]; | |
806 | shell_path = p+1; | |
807 | } | |
808 | argc--; | |
809 | } | |
6902ed17 | 810 | } else { |
088aac85 DD |
811 | am_sender = 1; |
812 | local_server = 1; | |
813 | shell_path = argv[argc-1]; | |
6902ed17 MP |
814 | } |
815 | ||
5d6bcd44 AT |
816 | if (shell_machine) { |
817 | p = strchr(shell_machine,'@'); | |
818 | if (p) { | |
819 | *p = 0; | |
820 | shell_user = shell_machine; | |
821 | shell_machine = p+1; | |
822 | } | |
823 | } | |
824 | ||
825 | if (verbose > 3) { | |
9486289c | 826 | rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n", |
5d6bcd44 AT |
827 | shell_cmd?shell_cmd:"", |
828 | shell_machine?shell_machine:"", | |
829 | shell_user?shell_user:"", | |
830 | shell_path?shell_path:""); | |
831 | } | |
832 | ||
f7632fc6 | 833 | if (!am_sender && argc > 1) { |
5d6bcd44 | 834 | usage(FERROR); |
65417579 | 835 | exit_cleanup(RERR_SYNTAX); |
5d6bcd44 | 836 | } |
27e3e9c9 AT |
837 | |
838 | if (argc == 0 && !am_sender) { | |
839 | extern int list_only; | |
840 | list_only = 1; | |
841 | } | |
5d6bcd44 | 842 | |
75aeac44 WD |
843 | pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path, |
844 | &f_in,&f_out); | |
845 | ||
846 | /* if we're running an rsync server on the remote host over a | |
847 | remote shell command, we need to do the RSYNCD protocol first */ | |
848 | if (daemon_over_rsh) { | |
849 | int tmpret; | |
850 | tmpret = start_inband_exchange(shell_user, shell_path, | |
851 | f_in, f_out, argc); | |
852 | if (tmpret < 0) | |
853 | return tmpret; | |
854 | } | |
855 | ||
fc8a6b97 AT |
856 | ret = client_run(f_in, f_out, pid, argc, argv); |
857 | ||
858 | fflush(stdout); | |
859 | fflush(stderr); | |
860 | ||
861 | return ret; | |
5d6bcd44 AT |
862 | } |
863 | ||
366345fe | 864 | |
0f0ea7f7 | 865 | static RETSIGTYPE sigusr1_handler(int UNUSED(val)) { |
65417579 | 866 | exit_cleanup(RERR_SIGNAL); |
82306bf6 AT |
867 | } |
868 | ||
0f0ea7f7 | 869 | static RETSIGTYPE sigusr2_handler(int UNUSED(val)) { |
ff81e809 | 870 | extern int log_got_error; |
19b27a48 | 871 | if (log_got_error) _exit(RERR_PARTIAL); |
8b35435f AT |
872 | _exit(0); |
873 | } | |
874 | ||
0f0ea7f7 | 875 | static RETSIGTYPE sigchld_handler(int UNUSED(val)) { |
029c1713 | 876 | #ifdef WNOHANG |
ee7118a8 DD |
877 | int cnt, status; |
878 | pid_t pid; | |
879 | /* An empty waitpid() loop was put here by Tridge and we could never | |
880 | * get him to explain why he put it in, so rather than taking it | |
881 | * out we're instead saving the child exit statuses for later use. | |
882 | * The waitpid() loop presumably eliminates all possibility of leaving | |
883 | * zombie children, maybe that's why he did it. | |
884 | */ | |
885 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { | |
886 | /* save the child's exit status */ | |
887 | for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) { | |
888 | if (pid_stat_table[cnt].pid == 0) { | |
889 | pid_stat_table[cnt].pid = pid; | |
890 | pid_stat_table[cnt].status = status; | |
891 | break; | |
892 | } | |
893 | } | |
894 | } | |
029c1713 | 895 | #endif |
19b27a48 AT |
896 | } |
897 | ||
c0531332 MP |
898 | |
899 | /** | |
900 | * This routine catches signals and tries to send them to gdb. | |
901 | * | |
902 | * Because it's called from inside a signal handler it ought not to | |
903 | * use too many library routines. | |
904 | * | |
905 | * @todo Perhaps use "screen -X" instead/as well, to help people | |
906 | * debugging without easy access to X. Perhaps use an environment | |
907 | * variable, or just call a script? | |
908 | * | |
909 | * @todo The /proc/ magic probably only works on Linux (and | |
910 | * Solaris?) Can we be more portable? | |
911 | **/ | |
912 | #ifdef MAINTAINER_MODE | |
4fdc39dd MP |
913 | const char *get_panic_action(void) |
914 | { | |
915 | const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION"); | |
916 | ||
917 | if (cmd_fmt) | |
918 | return cmd_fmt; | |
919 | else | |
920 | return "xterm -display :0 -T Panic -n Panic " | |
921 | "-e gdb /proc/%d/exe %d"; | |
922 | } | |
923 | ||
924 | ||
9fb3f7a9 MP |
925 | /** |
926 | * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION. | |
927 | * | |
928 | * This signal handler is only installed if we were configured with | |
929 | * --enable-maintainer-mode. Perhaps it should always be on and we | |
930 | * should just look at the environment variable, but I'm a bit leery | |
931 | * of a signal sending us into a busy loop. | |
932 | **/ | |
c0531332 MP |
933 | static RETSIGTYPE rsync_panic_handler(int UNUSED(whatsig)) |
934 | { | |
935 | char cmd_buf[300]; | |
936 | int ret; | |
4fdc39dd MP |
937 | |
938 | sprintf(cmd_buf, get_panic_action(), | |
c0531332 MP |
939 | getpid(), getpid()); |
940 | ||
941 | /* Unless we failed to execute gdb, we allow the process to | |
942 | * continue. I'm not sure if that's right. */ | |
943 | ret = system(cmd_buf); | |
944 | if (ret) | |
945 | _exit(ret); | |
946 | } | |
947 | #endif | |
948 | ||
949 | ||
5d6bcd44 | 950 | int main(int argc,char *argv[]) |
7a6421fa AT |
951 | { |
952 | extern int am_root; | |
953 | extern int orig_umask; | |
954 | extern int dry_run; | |
955 | extern int am_daemon; | |
956 | extern int am_server; | |
ff81e809 | 957 | int ret; |
088aac85 DD |
958 | extern int write_batch; |
959 | int orig_argc; | |
76f79ba7 | 960 | char **orig_argv; |
6902ed17 | 961 | |
088aac85 | 962 | orig_argc = argc; |
76f79ba7 | 963 | orig_argv = argv; |
5d6bcd44 | 964 | |
7a6421fa | 965 | signal(SIGUSR1, sigusr1_handler); |
8b35435f | 966 | signal(SIGUSR2, sigusr2_handler); |
19b27a48 | 967 | signal(SIGCHLD, sigchld_handler); |
c0531332 MP |
968 | #ifdef MAINTAINER_MODE |
969 | signal(SIGSEGV, rsync_panic_handler); | |
970 | signal(SIGFPE, rsync_panic_handler); | |
971 | signal(SIGABRT, rsync_panic_handler); | |
972 | signal(SIGBUS, rsync_panic_handler); | |
973 | #endif /* def MAINTAINER_MODE */ | |
5d6bcd44 | 974 | |
7a6421fa AT |
975 | starttime = time(NULL); |
976 | am_root = (getuid() == 0); | |
c627d613 | 977 | |
a800434a AT |
978 | memset(&stats, 0, sizeof(stats)); |
979 | ||
df5e03da AT |
980 | if (argc < 2) { |
981 | usage(FERROR); | |
65417579 | 982 | exit_cleanup(RERR_SYNTAX); |
df5e03da AT |
983 | } |
984 | ||
7a6421fa AT |
985 | /* we set a 0 umask so that correct file permissions can be |
986 | carried across */ | |
987 | orig_umask = (int)umask(0); | |
5d6bcd44 | 988 | |
50135767 | 989 | if (!parse_arguments(&argc, (const char ***) &argv, 1)) { |
305ab133 MP |
990 | /* FIXME: We ought to call the same error-handling |
991 | * code here, rather than relying on getopt. */ | |
50135767 | 992 | option_error(); |
65417579 | 993 | exit_cleanup(RERR_SYNTAX); |
b11ed3b1 | 994 | } |
5d6bcd44 | 995 | |
7a6421fa | 996 | signal(SIGINT,SIGNAL_CAST sig_int); |
7a6421fa | 997 | signal(SIGHUP,SIGNAL_CAST sig_int); |
8638dd48 | 998 | signal(SIGTERM,SIGNAL_CAST sig_int); |
6b83141d | 999 | |
34758d5c MP |
1000 | /* Ignore SIGPIPE; we consistently check error codes and will |
1001 | * see the EPIPE. */ | |
1002 | signal(SIGPIPE, SIG_IGN); | |
1003 | ||
c226b7c2 DD |
1004 | /* Initialize push_dir here because on some old systems getcwd |
1005 | (implemented by forking "pwd" and reading its output) doesn't | |
1006 | work when there are other child processes. Also, on all systems | |
1007 | that implement getcwd that way "pwd" can't be found after chroot. */ | |
1008 | push_dir(NULL,0); | |
1009 | ||
088aac85 | 1010 | if (write_batch && !am_server) { |
76f79ba7 | 1011 | write_batch_argvs_file(orig_argc, orig_argv); |
6902ed17 MP |
1012 | } |
1013 | ||
75aeac44 | 1014 | if (am_daemon && !am_server) |
7a6421fa | 1015 | return daemon_main(); |
f0fca04e | 1016 | |
08ac228f AT |
1017 | if (argc < 1) { |
1018 | usage(FERROR); | |
65417579 | 1019 | exit_cleanup(RERR_SYNTAX); |
08ac228f AT |
1020 | } |
1021 | ||
7a6421fa AT |
1022 | if (dry_run) |
1023 | verbose = MAX(verbose,1); | |
c627d613 | 1024 | |
cbbe4892 | 1025 | #ifndef SUPPORT_LINKS |
7a6421fa AT |
1026 | if (!am_server && preserve_links) { |
1027 | rprintf(FERROR,"ERROR: symbolic links not supported\n"); | |
65417579 | 1028 | exit_cleanup(RERR_UNSUPPORTED); |
7a6421fa | 1029 | } |
cbbe4892 AT |
1030 | #endif |
1031 | ||
7a6421fa | 1032 | if (am_server) { |
f0359dd0 AT |
1033 | set_nonblocking(STDIN_FILENO); |
1034 | set_nonblocking(STDOUT_FILENO); | |
75aeac44 WD |
1035 | if (am_daemon) |
1036 | return start_daemon(STDIN_FILENO, STDOUT_FILENO); | |
7a6421fa AT |
1037 | start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv); |
1038 | } | |
c627d613 | 1039 | |
ff81e809 | 1040 | ret = start_client(argc, argv); |
088aac85 | 1041 | if (ret == -1) |
9098bbf3 | 1042 | exit_cleanup(RERR_STARTCLIENT); |
088aac85 | 1043 | else |
9098bbf3 MP |
1044 | exit_cleanup(ret); |
1045 | ||
1046 | exit(ret); | |
1047 | /* NOTREACHED */ | |
c627d613 | 1048 | } |