Commit | Line | Data |
---|---|---|
a039749b MP |
1 | /* -*- c-file-style: "linux"; -*- |
2 | ||
15b7b73d | 3 | Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org> |
be2961da | 4 | Copyright (C) 2001-2002 by Martin Pool <mbp@samba.org> |
3591c066 AT |
5 | |
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
bc363ea9 | 21 | /* the socket based protocol for setting up a connection with rsyncd */ |
3591c066 AT |
22 | |
23 | #include "rsync.h" | |
24 | ||
25 | extern int module_id; | |
26 | extern int read_only; | |
27 | extern int verbose; | |
28 | extern int rsync_port; | |
97cb8dc2 | 29 | char *auth_user; |
cb13abfe | 30 | int sanitize_paths = 0; |
3591c066 | 31 | |
be2961da | 32 | /** |
bc363ea9 | 33 | * Run a client connected to an rsyncd. The alternative to this |
be2961da MP |
34 | * function for remote-shell connections is do_cmd(). |
35 | * | |
36 | * After initial server startup, hands over to client_run(). | |
37 | * | |
38 | * @return -1 for error in startup, or the result of client_run(). | |
39 | **/ | |
3591c066 AT |
40 | int start_socket_client(char *host, char *path, int argc, char *argv[]) |
41 | { | |
42 | int fd, i; | |
43 | char *sargs[MAX_ARGS]; | |
44 | int sargc=0; | |
e42c9458 | 45 | char line[MAXPATHLEN]; |
bcb7e502 | 46 | char *p, *user=NULL; |
13c5fc0e | 47 | extern int remote_version; |
8d9dc9f9 | 48 | extern int am_sender; |
bc363ea9 | 49 | extern char *shell_cmd; |
7a55d06e | 50 | extern int kludge_around_eof; |
06963d0f | 51 | extern char *bind_address; |
13e29995 | 52 | extern int default_af_hint; |
06963d0f | 53 | |
27e3e9c9 AT |
54 | if (argc == 0 && !am_sender) { |
55 | extern int list_only; | |
56 | list_only = 1; | |
57 | } | |
58 | ||
bc363ea9 MP |
59 | /* This is just a friendliness enhancement: if the connection |
60 | * is to an rsyncd then there is no point specifying the -e option. | |
61 | * Note that this is only set if the -e was explicitly specified, | |
62 | * not if the environment variable just happens to be set. | |
63 | * See http://lists.samba.org/pipermail/rsync/2000-September/002744.html | |
64 | */ | |
65 | if (shell_cmd) { | |
66 | rprintf(FERROR, "WARNING: --rsh or -e option ignored when " | |
67 | "connecting to rsync daemon\n"); | |
68 | /* continue */ | |
69 | } | |
70 | ||
f98df1d9 | 71 | if (*path == '/') { |
ff81e809 | 72 | rprintf(FERROR,"ERROR: The remote path must start with a module name not a /\n"); |
f98df1d9 AT |
73 | return -1; |
74 | } | |
75 | ||
bcb7e502 AT |
76 | p = strchr(host, '@'); |
77 | if (p) { | |
78 | user = host; | |
79 | host = p+1; | |
80 | *p = 0; | |
81 | } | |
82 | ||
83 | if (!user) user = getenv("USER"); | |
84 | if (!user) user = getenv("LOGNAME"); | |
85 | ||
1bbd10fe | 86 | if (verbose >= 2) { |
604f343c MP |
87 | /* FIXME: If we're going to use a socket program for |
88 | * testing, then this message is wrong. We need to | |
89 | * say something like "(except really using %s)" */ | |
1264288c MP |
90 | rprintf(FINFO, "opening tcp connection to %s port %d\n", |
91 | host, rsync_port); | |
1bbd10fe | 92 | } |
d5d4b282 | 93 | fd = open_socket_out_wrapped (host, rsync_port, bind_address, |
13e29995 | 94 | default_af_hint); |
3591c066 | 95 | if (fd == -1) { |
65417579 | 96 | exit_cleanup(RERR_SOCKETIO); |
3591c066 AT |
97 | } |
98 | ||
99 | server_options(sargs,&sargc); | |
100 | ||
101 | sargs[sargc++] = "."; | |
102 | ||
103 | if (path && *path) | |
104 | sargs[sargc++] = path; | |
105 | ||
106 | sargs[sargc] = NULL; | |
107 | ||
91eee594 AT |
108 | io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION); |
109 | ||
3591c066 | 110 | if (!read_line(fd, line, sizeof(line)-1)) { |
be2961da | 111 | rprintf(FERROR, "rsync: did not see server greeting\n"); |
3591c066 AT |
112 | return -1; |
113 | } | |
114 | ||
13c5fc0e | 115 | if (sscanf(line,"@RSYNCD: %d", &remote_version) != 1) { |
be2961da MP |
116 | /* note that read_line strips of \n or \r */ |
117 | rprintf(FERROR, "rsync: server sent \"%s\" rather than greeting\n", | |
118 | line); | |
3591c066 AT |
119 | return -1; |
120 | } | |
121 | ||
2c91d3d3 AT |
122 | p = strchr(path,'/'); |
123 | if (p) *p = 0; | |
124 | io_printf(fd,"%s\n",path); | |
125 | if (p) *p = '/'; | |
126 | ||
063393d6 MP |
127 | /* Old servers may just drop the connection here, |
128 | rather than sending a proper EXIT command. Yuck. */ | |
129 | kludge_around_eof = remote_version < 25; | |
7a55d06e | 130 | |
063393d6 | 131 | while (1) { |
3591c066 | 132 | if (!read_line(fd, line, sizeof(line)-1)) { |
be2961da | 133 | rprintf(FERROR, "rsync: didn't get server startup line\n"); |
3591c066 AT |
134 | return -1; |
135 | } | |
31593dd6 | 136 | |
31593dd6 | 137 | if (strncmp(line,"@RSYNCD: AUTHREQD ",18) == 0) { |
bcb7e502 | 138 | auth_client(fd, user, line+18); |
31593dd6 AT |
139 | continue; |
140 | } | |
31593dd6 | 141 | |
3591c066 | 142 | if (strcmp(line,"@RSYNCD: OK") == 0) break; |
8f04bb36 AT |
143 | |
144 | if (strcmp(line,"@RSYNCD: EXIT") == 0) exit(0); | |
145 | ||
c613d370 DD |
146 | if (strncmp(line, "@ERROR", 6) == 0) |
147 | rprintf(FERROR,"%s\n", line); | |
148 | else | |
149 | rprintf(FINFO,"%s\n", line); | |
3591c066 | 150 | } |
7a55d06e | 151 | kludge_around_eof = False; |
3591c066 AT |
152 | |
153 | for (i=0;i<sargc;i++) { | |
154 | io_printf(fd,"%s\n", sargs[i]); | |
155 | } | |
156 | io_printf(fd,"\n"); | |
157 | ||
09b7f5db AT |
158 | if (remote_version < 23) { |
159 | if (remote_version == 22 || (remote_version > 17 && !am_sender)) | |
160 | io_start_multiplex_in(fd); | |
161 | } | |
8d9dc9f9 | 162 | |
3591c066 AT |
163 | return client_run(fd, fd, -1, argc, argv); |
164 | } | |
165 | ||
166 | ||
167 | ||
168 | static int rsync_module(int fd, int i) | |
169 | { | |
170 | int argc=0; | |
171 | char *argv[MAX_ARGS]; | |
172 | char **argp; | |
e42c9458 | 173 | char line[MAXPATHLEN]; |
2af27ad9 | 174 | uid_t uid = (uid_t)-2; /* canonically "nobody" */ |
1a016bfd | 175 | gid_t gid = (gid_t)-2; |
8ef4ffd6 | 176 | char *p; |
56c473b7 AT |
177 | char *addr = client_addr(fd); |
178 | char *host = client_name(fd); | |
874895d5 | 179 | char *name = lp_name(i); |
8638dd48 | 180 | int use_chroot = lp_use_chroot(i); |
874895d5 | 181 | int start_glob=0; |
41979ff8 | 182 | int ret; |
7b372642 AT |
183 | char *request=NULL; |
184 | extern int am_sender; | |
8d9dc9f9 | 185 | extern int remote_version; |
943882a2 | 186 | extern int am_root; |
56c473b7 AT |
187 | |
188 | if (!allow_access(addr, host, lp_hosts_allow(i), lp_hosts_deny(i))) { | |
189 | rprintf(FERROR,"rsync denied on module %s from %s (%s)\n", | |
31ec50d7 | 190 | name, host, addr); |
c8e78d87 | 191 | io_printf(fd,"@ERROR: access denied to %s from %s (%s)\n", |
31ec50d7 | 192 | name, host, addr); |
56c473b7 AT |
193 | return -1; |
194 | } | |
3591c066 | 195 | |
5e71c444 | 196 | if (!claim_connection(lp_lock_file(i), lp_max_connections(i))) { |
8d72ef6e AT |
197 | if (errno) { |
198 | rprintf(FERROR,"failed to open lock file %s : %s\n", | |
5e71c444 | 199 | lp_lock_file(i), strerror(errno)); |
8d72ef6e | 200 | io_printf(fd,"@ERROR: failed to open lock file %s : %s\n", |
5e71c444 | 201 | lp_lock_file(i), strerror(errno)); |
8d72ef6e AT |
202 | } else { |
203 | rprintf(FERROR,"max connections (%d) reached\n", | |
5e71c444 AT |
204 | lp_max_connections(i)); |
205 | io_printf(fd,"@ERROR: max connections (%d) reached - try again later\n", lp_max_connections(i)); | |
8d72ef6e | 206 | } |
0c515f17 AT |
207 | return -1; |
208 | } | |
209 | ||
31593dd6 | 210 | |
97cb8dc2 | 211 | auth_user = auth_server(fd, i, addr, "@RSYNCD: AUTHREQD "); |
d0d56395 | 212 | |
97cb8dc2 | 213 | if (!auth_user) { |
d0d56395 AT |
214 | rprintf(FERROR,"auth failed on module %s from %s (%s)\n", |
215 | name, client_name(fd), client_addr(fd)); | |
216 | io_printf(fd,"@ERROR: auth failed on module %s\n",name); | |
217 | return -1; | |
218 | } | |
219 | ||
3591c066 AT |
220 | module_id = i; |
221 | ||
716baed7 | 222 | am_root = (getuid() == 0); |
8ef4ffd6 | 223 | |
716baed7 DD |
224 | if (am_root) { |
225 | p = lp_uid(i); | |
226 | if (!name_to_uid(p, &uid)) { | |
227 | if (!isdigit(*p)) { | |
228 | rprintf(FERROR,"Invalid uid %s\n", p); | |
fd2dd2aa | 229 | io_printf(fd,"@ERROR: invalid uid %s\n", p); |
716baed7 DD |
230 | return -1; |
231 | } | |
232 | uid = atoi(p); | |
233 | } | |
234 | ||
235 | p = lp_gid(i); | |
236 | if (!name_to_gid(p, &gid)) { | |
237 | if (!isdigit(*p)) { | |
238 | rprintf(FERROR,"Invalid gid %s\n", p); | |
fd2dd2aa | 239 | io_printf(fd,"@ERROR: invalid gid %s\n", p); |
716baed7 DD |
240 | return -1; |
241 | } | |
242 | gid = atoi(p); | |
243 | } | |
8ef4ffd6 | 244 | } |
3b2b5345 MP |
245 | |
246 | /* TODO: If we're not root, but the configuration requests | |
247 | * that we change to some uid other than the current one, then | |
248 | * log a warning. */ | |
249 | ||
250 | /* TODO: Perhaps take a list of gids, and make them into the | |
251 | * supplementary groups. */ | |
8ef4ffd6 | 252 | |
cd64343a DD |
253 | p = lp_include_from(i); |
254 | add_exclude_file(p, 1, 1); | |
255 | ||
256 | p = lp_include(i); | |
257 | add_include_line(p); | |
258 | ||
8f3a2d54 | 259 | p = lp_exclude_from(i); |
2b6b4d53 | 260 | add_exclude_file(p, 1, 0); |
8f3a2d54 | 261 | |
5805327b | 262 | p = lp_exclude(i); |
8f3a2d54 AT |
263 | add_exclude_line(p); |
264 | ||
45a83540 | 265 | log_init(); |
1a016bfd | 266 | |
8638dd48 | 267 | if (use_chroot) { |
b52c1d9d MP |
268 | /* |
269 | * XXX: The 'use chroot' flag is a fairly reliable | |
270 | * source of confusion, because it fails under two | |
271 | * important circumstances: running as non-root, | |
272 | * running on Win32 (or possibly others). On the | |
273 | * other hand, if you are running as root, then it | |
274 | * might be better to always use chroot. | |
275 | * | |
276 | * So, perhaps if we can't chroot we should just issue | |
277 | * a warning, unless a "require chroot" flag is set, | |
278 | * in which case we fail. | |
279 | */ | |
8638dd48 | 280 | if (chroot(lp_path(i))) { |
a039749b | 281 | rsyserr(FERROR, errno, "chroot %s failed", lp_path(i)); |
8638dd48 DD |
282 | io_printf(fd,"@ERROR: chroot failed\n"); |
283 | return -1; | |
284 | } | |
3591c066 | 285 | |
c226b7c2 | 286 | if (!push_dir("/", 0)) { |
a039749b | 287 | rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i)); |
8638dd48 DD |
288 | io_printf(fd,"@ERROR: chdir failed\n"); |
289 | return -1; | |
290 | } | |
3591c066 | 291 | |
716baed7 DD |
292 | } else { |
293 | if (!push_dir(lp_path(i), 0)) { | |
a039749b | 294 | rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i)); |
716baed7 DD |
295 | io_printf(fd,"@ERROR: chdir failed\n"); |
296 | return -1; | |
297 | } | |
cb13abfe | 298 | sanitize_paths = 1; |
716baed7 DD |
299 | } |
300 | ||
301 | if (am_root) { | |
e3bdb763 | 302 | #ifdef HAVE_SETGROUPS |
715d1f45 MP |
303 | /* Get rid of any supplementary groups this process |
304 | * might have inheristed. */ | |
305 | if (setgroups(0, NULL)) { | |
306 | rsyserr(FERROR, errno, "setgroups failed"); | |
307 | io_printf(fd, "@ERROR: setgroups failed\n"); | |
308 | return -1; | |
309 | } | |
e3bdb763 | 310 | #endif |
715d1f45 MP |
311 | |
312 | /* XXXX: You could argue that if the daemon is started | |
313 | * by a non-root user and they explicitly specify a | |
314 | * gid, then we should try to change to that gid -- | |
315 | * this could be possible if it's already in their | |
316 | * supplementary groups. */ | |
317 | ||
318 | /* TODO: Perhaps we need to document that if rsyncd is | |
319 | * started by somebody other than root it will inherit | |
320 | * all their supplementary groups. */ | |
321 | ||
716baed7 | 322 | if (setgid(gid)) { |
08a740ff | 323 | rsyserr(FERROR, errno, "setgid %d failed", (int) gid); |
8638dd48 DD |
324 | io_printf(fd,"@ERROR: setgid failed\n"); |
325 | return -1; | |
326 | } | |
3591c066 | 327 | |
716baed7 | 328 | if (setuid(uid)) { |
08a740ff | 329 | rsyserr(FERROR, errno, "setuid %d failed", (int) uid); |
8638dd48 DD |
330 | io_printf(fd,"@ERROR: setuid failed\n"); |
331 | return -1; | |
332 | } | |
333 | ||
716baed7 | 334 | am_root = (getuid() == 0); |
3591c066 AT |
335 | } |
336 | ||
337 | io_printf(fd,"@RSYNCD: OK\n"); | |
338 | ||
339 | argv[argc++] = "rsyncd"; | |
340 | ||
341 | while (1) { | |
342 | if (!read_line(fd, line, sizeof(line)-1)) { | |
343 | return -1; | |
344 | } | |
345 | ||
346 | if (!*line) break; | |
347 | ||
874895d5 AT |
348 | p = line; |
349 | ||
874895d5 | 350 | argv[argc] = strdup(p); |
3591c066 AT |
351 | if (!argv[argc]) { |
352 | return -1; | |
353 | } | |
354 | ||
874895d5 | 355 | if (start_glob) { |
1a016bfd | 356 | if (start_glob == 1) { |
7b372642 | 357 | request = strdup(p); |
1a016bfd AT |
358 | start_glob++; |
359 | } | |
cb13abfe | 360 | glob_expand(name, argv, &argc, MAX_ARGS); |
874895d5 AT |
361 | } else { |
362 | argc++; | |
363 | } | |
364 | ||
365 | if (strcmp(line,".") == 0) { | |
366 | start_glob = 1; | |
367 | } | |
368 | ||
3591c066 AT |
369 | if (argc == MAX_ARGS) { |
370 | return -1; | |
371 | } | |
372 | } | |
373 | ||
cb13abfe | 374 | if (sanitize_paths) { |
8638dd48 DD |
375 | /* |
376 | * Note that this is applied to all parameters, whether or not | |
377 | * they are filenames, but no other legal parameters contain | |
378 | * the forms that need to be sanitized so it doesn't hurt; | |
379 | * it is not known at this point which parameters are files | |
380 | * and which aren't. | |
381 | */ | |
382 | for (i = 1; i < argc; i++) { | |
cb13abfe | 383 | sanitize_path(argv[i], NULL); |
8638dd48 DD |
384 | } |
385 | } | |
386 | ||
15b7b73d MP |
387 | argp = argv; |
388 | ret = parse_arguments(&argc, (const char ***) &argp, 0); | |
3591c066 | 389 | |
7b372642 | 390 | if (request) { |
97cb8dc2 | 391 | if (*auth_user) { |
d0d56395 AT |
392 | rprintf(FINFO,"rsync %s %s from %s@%s (%s)\n", |
393 | am_sender?"on":"to", | |
97cb8dc2 | 394 | request, auth_user, host, addr); |
d0d56395 AT |
395 | } else { |
396 | rprintf(FINFO,"rsync %s %s from %s (%s)\n", | |
397 | am_sender?"on":"to", | |
398 | request, host, addr); | |
399 | } | |
7b372642 AT |
400 | free(request); |
401 | } | |
402 | ||
15b7b73d | 403 | #ifndef DEBUG |
3591c066 AT |
404 | /* don't allow the logs to be flooded too fast */ |
405 | if (verbose > 1) verbose = 1; | |
0199b05f | 406 | #endif |
3591c066 | 407 | |
09b7f5db AT |
408 | if (remote_version < 23) { |
409 | if (remote_version == 22 || (remote_version > 17 && am_sender)) | |
410 | io_start_multiplex_out(fd); | |
554e0a8d | 411 | } |
15b7b73d MP |
412 | |
413 | /* For later protocol versions, we don't start multiplexing | |
414 | * until we've configured nonblocking in start_server. That | |
415 | * means we're in a sticky situation now: there's no way to | |
416 | * convey errors to the client. */ | |
417 | ||
418 | /* FIXME: Hold off on reporting option processing errors until | |
419 | * we've set up nonblocking and multiplexed IO and can get the | |
420 | * message back to them. */ | |
41979ff8 | 421 | if (!ret) { |
15b7b73d MP |
422 | option_error(); |
423 | exit_cleanup(RERR_UNSUPPORTED); | |
41979ff8 AT |
424 | } |
425 | ||
81791cfc AT |
426 | if (lp_timeout(i)) { |
427 | extern int io_timeout; | |
428 | io_timeout = lp_timeout(i); | |
429 | } | |
430 | ||
3591c066 AT |
431 | start_server(fd, fd, argc, argp); |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
7a6421fa AT |
436 | /* send a list of available modules to the client. Don't list those |
437 | with "list = False". */ | |
3591c066 AT |
438 | static void send_listing(int fd) |
439 | { | |
440 | int n = lp_numservices(); | |
441 | int i; | |
063393d6 MP |
442 | extern int remote_version; |
443 | ||
3591c066 AT |
444 | for (i=0;i<n;i++) |
445 | if (lp_list(i)) | |
446 | io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i)); | |
8f04bb36 | 447 | |
063393d6 MP |
448 | if (remote_version >= 25) |
449 | io_printf(fd,"@RSYNCD: EXIT\n"); | |
3591c066 AT |
450 | } |
451 | ||
452 | /* this is called when a socket connection is established to a client | |
453 | and we want to start talking. The setup of the system is done from | |
454 | here */ | |
455 | static int start_daemon(int fd) | |
456 | { | |
7a6421fa | 457 | char line[200]; |
3591c066 | 458 | char *motd; |
8ef4ffd6 | 459 | int i = -1; |
4cdf25e4 | 460 | extern char *config_file; |
13c5fc0e | 461 | extern int remote_version; |
4cdf25e4 | 462 | |
f9e940ef | 463 | if (!lp_load(config_file, 0)) { |
65417579 | 464 | exit_cleanup(RERR_SYNTAX); |
4cdf25e4 | 465 | } |
3591c066 AT |
466 | |
467 | set_socket_options(fd,"SO_KEEPALIVE"); | |
a6801c39 | 468 | set_socket_options(fd,lp_socket_options()); |
f0359dd0 | 469 | set_nonblocking(fd); |
3591c066 AT |
470 | |
471 | io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION); | |
472 | ||
473 | motd = lp_motd_file(); | |
27d3cdbc | 474 | if (motd && *motd) { |
3591c066 AT |
475 | FILE *f = fopen(motd,"r"); |
476 | while (f && !feof(f)) { | |
477 | int len = fread(line, 1, sizeof(line)-1, f); | |
478 | if (len > 0) { | |
479 | line[len] = 0; | |
480 | io_printf(fd,"%s", line); | |
481 | } | |
482 | } | |
483 | if (f) fclose(f); | |
484 | io_printf(fd,"\n"); | |
485 | } | |
486 | ||
91eee594 AT |
487 | if (!read_line(fd, line, sizeof(line)-1)) { |
488 | return -1; | |
489 | } | |
490 | ||
491 | if (sscanf(line,"@RSYNCD: %d", &remote_version) != 1) { | |
c8e78d87 | 492 | io_printf(fd,"@ERROR: protocol startup error\n"); |
91eee594 AT |
493 | return -1; |
494 | } | |
495 | ||
8ef4ffd6 | 496 | while (i == -1) { |
3591c066 AT |
497 | line[0] = 0; |
498 | if (!read_line(fd, line, sizeof(line)-1)) { | |
499 | return -1; | |
500 | } | |
501 | ||
502 | if (!*line || strcmp(line,"#list")==0) { | |
503 | send_listing(fd); | |
504 | return -1; | |
505 | } | |
506 | ||
507 | if (*line == '#') { | |
508 | /* it's some sort of command that I don't understand */ | |
c8e78d87 | 509 | io_printf(fd,"@ERROR: Unknown command '%s'\n", line); |
3591c066 AT |
510 | return -1; |
511 | } | |
512 | ||
513 | i = lp_number(line); | |
514 | if (i == -1) { | |
c8e78d87 | 515 | io_printf(fd,"@ERROR: Unknown module '%s'\n", line); |
3591c066 AT |
516 | return -1; |
517 | } | |
3591c066 AT |
518 | } |
519 | ||
8ef4ffd6 | 520 | return rsync_module(fd, i); |
3591c066 AT |
521 | } |
522 | ||
523 | ||
524 | int daemon_main(void) | |
525 | { | |
f9e940ef | 526 | extern char *config_file; |
ad517ce5 | 527 | extern int orig_umask; |
8638dd48 | 528 | char *pid_file; |
13e29995 | 529 | extern int no_detach; |
1a016bfd | 530 | |
3591c066 | 531 | if (is_a_socket(STDIN_FILENO)) { |
41979ff8 AT |
532 | int i; |
533 | ||
534 | /* we are running via inetd - close off stdout and | |
535 | stderr so that library functions (and getopt) don't | |
536 | try to use them. Redirect them to /dev/null */ | |
537 | for (i=1;i<3;i++) { | |
538 | close(i); | |
539 | open("/dev/null", O_RDWR); | |
540 | } | |
3eb38818 | 541 | |
3591c066 AT |
542 | return start_daemon(STDIN_FILENO); |
543 | } | |
544 | ||
13e29995 | 545 | if (!no_detach) |
a538066d | 546 | become_daemon(); |
3591c066 | 547 | |
f9e940ef | 548 | if (!lp_load(config_file, 1)) { |
65417579 | 549 | exit_cleanup(RERR_SYNTAX); |
f9e940ef AT |
550 | } |
551 | ||
45a83540 | 552 | log_init(); |
f9e940ef | 553 | |
a358449a MP |
554 | rprintf(FINFO, "rsyncd version %s starting, listening on port %d\n", |
555 | RSYNC_VERSION, | |
15b7b73d MP |
556 | rsync_port); |
557 | /* TODO: If listening on a particular address, then show that | |
431efc89 MP |
558 | * address too. In fact, why not just do inet_ntop on the |
559 | * local address??? */ | |
e42c9458 | 560 | |
8638dd48 | 561 | if (((pid_file = lp_pid_file()) != NULL) && (*pid_file != '\0')) { |
ad517ce5 DD |
562 | char pidbuf[16]; |
563 | int fd; | |
8638dd48 DD |
564 | int pid = (int) getpid(); |
565 | cleanup_set_pid(pid); | |
ad517ce5 DD |
566 | if ((fd = do_open(lp_pid_file(), O_WRONLY|O_CREAT|O_TRUNC, |
567 | 0666 & ~orig_umask)) == -1) { | |
8638dd48 | 568 | cleanup_set_pid(0); |
a039749b | 569 | rsyserr(FLOG, errno, "failed to create pid file %s", pid_file); |
65417579 | 570 | exit_cleanup(RERR_FILEIO); |
8638dd48 | 571 | } |
8950ac03 | 572 | snprintf(pidbuf, sizeof(pidbuf), "%d\n", pid); |
ad517ce5 DD |
573 | write(fd, pidbuf, strlen(pidbuf)); |
574 | close(fd); | |
8638dd48 DD |
575 | } |
576 | ||
8ef4ffd6 AT |
577 | start_accept_loop(rsync_port, start_daemon); |
578 | return -1; | |
3591c066 AT |
579 | } |
580 |