1 /* -*- c-file-style: "linux" -*-
3 Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org>
4 Copyright (C) Paul Mackerras 1996
5 Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
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.
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.
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.
26 extern struct stats stats;
30 extern int am_generator;
33 extern int blocking_io;
34 extern int cvs_exclude;
35 extern int delete_mode;
36 extern int delete_excluded;
37 extern int delete_after;
38 extern int daemon_over_rsh;
42 extern int local_server;
43 extern int log_got_error;
45 extern int orig_umask;
46 extern int keep_dirlinks;
47 extern int preserve_hard_links;
48 extern int protocol_version;
50 extern int relative_paths;
51 extern int rsync_port;
52 extern int whole_file;
53 extern int read_batch;
54 extern int write_batch;
56 extern int filesfrom_fd;
57 extern pid_t cleanup_child_pid;
58 extern char *files_from;
59 extern char *remote_filesfrom_file;
60 extern char *rsync_path;
61 extern char *shell_cmd;
62 extern char *batch_prefix;
65 /* there's probably never more than at most 2 outstanding child processes,
66 * but set it higher just in case.
68 #define MAXCHILDPROCS 5
73 } pid_stat_table[MAXCHILDPROCS];
75 static void show_malloc_stats(void);
77 /****************************************************************************
78 wait for a process to exit, calling io_flush while waiting
79 ****************************************************************************/
80 void wait_process(pid_t pid, int *status)
85 while ((waited_pid = waitpid(pid, status, WNOHANG)) == 0) {
90 if (waited_pid == -1 && errno == ECHILD) {
91 /* status of requested child no longer available.
92 * check to see if it was processed by the sigchld_handler.
94 for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) {
95 if (pid == pid_stat_table[cnt].pid) {
96 *status = pid_stat_table[cnt].status;
97 pid_stat_table[cnt].pid = 0;
103 /* TODO: If the child exited on a signal, then log an
104 * appropriate error message. Perhaps we should also accept a
105 * message describing the purpose of the child. Also indicate
106 * this to the caller so that thhey know something went
108 *status = WEXITSTATUS(*status);
111 /* This function gets called from all 3 processes. We want the client side
112 * to actually output the text, but the sender is the only process that has
113 * all the stats we need. So, if we're a client sender, we do the report.
114 * If we're a server sender, we write the stats on the supplied fd. If
115 * we're the client receiver we read the stats from the supplied fd and do
116 * the report. All processes might also generate a set of debug stats, if
117 * the verbose level is high enough (this is the only thing that the
118 * generator process and the server receiver ever do here). */
119 static void report(int f)
121 /* Cache two stats because the read/write code can change it. */
122 int64 total_read = stats.total_read;
123 int64 total_written = stats.total_written;
124 time_t t = time(NULL);
126 if (do_stats && verbose > 1) {
127 /* These come out from every process */
136 log_exit(0, __FILE__, __LINE__);
137 if (f == -1 || !am_sender)
143 write_longint(f, total_read);
144 write_longint(f, total_written);
145 write_longint(f, stats.total_size);
150 /* this is the client */
153 total_written = read_longint(f);
154 total_read = read_longint(f);
155 stats.total_size = read_longint(f);
156 } else if (write_batch) {
157 /* The --read-batch process is going to be a client
158 * receiver, so we need to give it the stats. */
159 write_longint(batch_fd, total_read);
160 write_longint(batch_fd, total_written);
161 write_longint(batch_fd, stats.total_size);
165 rprintf(FINFO,"\nNumber of files: %d\n", stats.num_files);
166 rprintf(FINFO,"Number of files transferred: %d\n",
167 stats.num_transferred_files);
168 rprintf(FINFO,"Total file size: %.0f bytes\n",
169 (double)stats.total_size);
170 rprintf(FINFO,"Total transferred file size: %.0f bytes\n",
171 (double)stats.total_transferred_size);
172 rprintf(FINFO,"Literal data: %.0f bytes\n",
173 (double)stats.literal_data);
174 rprintf(FINFO,"Matched data: %.0f bytes\n",
175 (double)stats.matched_data);
176 rprintf(FINFO,"File list size: %d\n", stats.flist_size);
177 rprintf(FINFO,"Total bytes written: %.0f\n",
178 (double)total_written);
179 rprintf(FINFO,"Total bytes read: %.0f\n",
183 if (verbose || do_stats) {
185 "\nwrote %.0f bytes read %.0f bytes %.2f bytes/sec\n",
186 (double)total_written, (double)total_read,
187 (total_written + total_read)/(0.5 + (t - starttime)));
188 rprintf(FINFO, "total size is %.0f speedup is %.2f\n",
189 (double)stats.total_size,
190 (double)stats.total_size / (total_written+total_read));
199 * If our C library can get malloc statistics, then show them to FINFO
201 static void show_malloc_stats(void)
208 rprintf(FINFO, "\n" RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n",
210 am_server ? "server " : "",
211 am_daemon ? "daemon " : "",
213 rprintf(FINFO, " arena: %10d (bytes from sbrk)\n", mi.arena);
214 rprintf(FINFO, " ordblks: %10d (chunks not in use)\n", mi.ordblks);
215 rprintf(FINFO, " smblks: %10d\n", mi.smblks);
216 rprintf(FINFO, " hblks: %10d (chunks from mmap)\n", mi.hblks);
217 rprintf(FINFO, " hblkhd: %10d (bytes from mmap)\n", mi.hblkhd);
218 rprintf(FINFO, " allmem: %10d (bytes from sbrk + mmap)\n",
219 mi.arena + mi.hblkhd);
220 rprintf(FINFO, " usmblks: %10d\n", mi.usmblks);
221 rprintf(FINFO, " fsmblks: %10d\n", mi.fsmblks);
222 rprintf(FINFO, " uordblks: %10d (bytes used)\n", mi.uordblks);
223 rprintf(FINFO, " fordblks: %10d (bytes free)\n", mi.fordblks);
224 rprintf(FINFO, " keepcost: %10d (bytes in releasable chunk)\n", mi.keepcost);
225 #endif /* HAVE_MALLINFO */
229 /* Start the remote shell. cmd may be NULL to use the default. */
230 static pid_t do_cmd(char *cmd, char *machine, char *user, char *path,
231 int *f_in, int *f_out)
234 char *args[MAX_ARGS];
236 char *tok, *dir = NULL;
239 if (!read_batch && !local_server) {
240 char *rsh_env = getenv(RSYNC_RSH_ENV);
249 for (tok = strtok(cmd, " "); tok; tok = strtok(NULL, " ")) {
250 /* Comparison leaves rooms for server_options(). */
251 if (argc >= MAX_ARGS - 100) {
252 rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n");
253 exit_cleanup(RERR_SYNTAX);
258 /* check to see if we've already been given '-l user' in
259 * the remote-shell command */
260 for (i = 0; i < argc-1; i++) {
261 if (!strcmp(args[i], "-l") && args[i+1][0] != '-')
266 /* remsh (on HPUX) takes the arguments the other way around */
267 args[argc++] = machine;
268 if (user && !(daemon_over_rsh && dash_l_set)) {
273 if (user && !(daemon_over_rsh && dash_l_set)) {
277 args[argc++] = machine;
280 args[argc++] = rsync_path;
282 if (blocking_io < 0) {
284 if ((cp = strrchr(cmd, '/')) != NULL)
288 if (strcmp(cp, "rsh") == 0 || strcmp(cp, "remsh") == 0)
292 server_options(args,&argc);
294 if (argc >= MAX_ARGS - 2) {
295 rprintf(FERROR, "internal: args[] overflowed in do_cmd()\n");
296 exit_cleanup(RERR_SYNTAX);
302 if (!daemon_over_rsh && path && *path)
308 rprintf(FINFO,"cmd=");
309 for (i = 0; i < argc; i++)
310 rprintf(FINFO,"%s ",args[i]);
315 /* If the user didn't request --[no-]whole-file, force
316 * it on, but only if we're not batch processing. */
317 if (whole_file < 0 && !read_batch && !write_batch)
319 ret = local_child(argc, args, f_in, f_out, child_main);
321 ret = piped_child(args,f_in,f_out);
330 out_of_memory("do_cmd");
331 return 0; /* not reached */
335 static char *get_local_name(struct file_list *flist,char *name)
341 rprintf(FINFO,"get_local_name count=%d %s\n",
342 flist->count, NS(name));
347 if (do_stat(name,&st) == 0) {
348 if (S_ISDIR(st.st_mode)) {
349 if (!push_dir(name)) {
350 rsyserr(FERROR, errno, "push_dir#1 %s failed",
352 exit_cleanup(RERR_FILESELECT);
356 if (flist->count > 1) {
357 rprintf(FERROR,"ERROR: destination must be a directory when copying more than 1 file\n");
358 exit_cleanup(RERR_FILESELECT);
363 if (flist->count <= 1 && ((e = strlen(name)) <= 1 || name[e-1] != '/'))
366 if (do_mkdir(name,0777 & ~orig_umask) != 0) {
367 rsyserr(FERROR, errno, "mkdir %s failed", full_fname(name));
368 exit_cleanup(RERR_FILEIO);
371 rprintf(FINFO,"created directory %s\n",name);
374 if (!push_dir(name)) {
375 rsyserr(FERROR, errno, "push_dir#2 %s failed",
377 exit_cleanup(RERR_FILESELECT);
384 static void do_server_sender(int f_in, int f_out, int argc,char *argv[])
387 struct file_list *flist;
391 rprintf(FINFO, "server_sender starting pid=%ld\n",
395 if (am_daemon && lp_write_only(module_id) && am_sender) {
396 rprintf(FERROR, "ERROR: module is write only\n");
397 exit_cleanup(RERR_SYNTAX);
401 if (!relative_paths && !push_dir(dir)) {
402 rsyserr(FERROR, errno, "push_dir#3 %s failed",
404 exit_cleanup(RERR_FILESELECT);
409 if (strcmp(dir,".")) {
411 if (strcmp(dir,"/") == 0)
413 for (i = 0; i < argc; i++)
417 if (argc == 0 && recurse) {
423 flist = send_file_list(f_out,argc,argv);
424 if (!flist || flist->count == 0) {
428 io_start_buffering_in(f_in);
429 io_start_buffering_out(f_out);
430 send_files(flist,f_out,f_in);
431 io_flush(FULL_FLUSH);
433 if (protocol_version >= 24) {
434 /* final goodbye message */
437 io_flush(FULL_FLUSH);
442 static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
448 if (preserve_hard_links)
449 init_hard_links(flist);
452 /* I moved this here from recv_files() to prevent a race condition */
453 if (recurse && delete_mode && !local_name && flist->count>0) {
458 if (fd_pair(error_pipe) < 0) {
459 rprintf(FERROR,"error pipe failed in do_recv\n");
460 exit_cleanup(RERR_SOCKETIO);
463 io_flush(NORMAL_FLUSH);
465 if ((pid = do_fork()) == 0) {
466 close(error_pipe[0]);
470 /* we can't let two processes write to the socket at one time */
471 io_multiplexing_close();
473 /* set place to send errors */
474 set_msg_fd_out(error_pipe[1]);
476 recv_files(f_in,flist,local_name);
477 io_flush(FULL_FLUSH);
480 send_msg(MSG_DONE, "", 0);
481 io_flush(FULL_FLUSH);
482 /* finally we go to sleep until our parent kills us
483 * with a USR2 signal. We sleep for a short time as on
484 * some OSes a signal won't interrupt a sleep! */
493 close(error_pipe[1]);
497 io_start_buffering_out(f_out);
499 set_msg_fd_in(error_pipe[0]);
501 generate_files(f_out, flist, local_name);
503 get_redo_num(); /* Read final MSG_DONE and any prior messages. */
505 io_flush(FULL_FLUSH);
506 if (protocol_version >= 24) {
507 /* send a final goodbye message */
508 write_int(f_out, -1);
510 io_flush(FULL_FLUSH);
514 wait_process(pid, &status);
519 static void do_server_recv(int f_in, int f_out, int argc,char *argv[])
522 struct file_list *flist;
523 char *local_name = NULL;
527 rprintf(FINFO, "server_recv(%d) starting pid=%ld\n",
528 argc, (long)getpid());
531 if (am_daemon && lp_read_only(module_id) && !am_sender) {
532 rprintf(FERROR,"ERROR: module is read only\n");
533 exit_cleanup(RERR_SYNTAX);
542 if (!am_daemon && !push_dir(dir)) {
543 rsyserr(FERROR, errno, "push_dir#4 %s failed",
545 exit_cleanup(RERR_FILESELECT);
549 io_start_buffering_in(f_in);
550 if (delete_mode && !delete_excluded)
551 recv_exclude_list(f_in);
553 if (filesfrom_fd >= 0) {
554 /* We're receiving the file info from the sender, so we need
555 * the IO routines to automatically write out the names onto
556 * our f_out socket as we read the list info from the sender.
557 * This avoids both deadlock and extra delays/buffers. */
558 io_set_filesfrom_fds(filesfrom_fd, f_out);
562 flist = recv_file_list(f_in);
564 rprintf(FERROR,"server_recv: recv_file_list error\n");
565 exit_cleanup(RERR_FILESELECT);
569 if (strcmp(dir,".")) {
570 argv[0] += strlen(dir);
571 if (argv[0][0] == '/')
574 local_name = get_local_name(flist,argv[0]);
577 status = do_recv(f_in,f_out,flist,local_name);
578 exit_cleanup(status);
582 int child_main(int argc, char *argv[])
584 start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv);
589 void start_server(int f_in, int f_out, int argc, char *argv[])
591 setup_protocol(f_out, f_in);
593 set_nonblocking(f_in);
594 set_nonblocking(f_out);
596 if (protocol_version >= 23)
597 io_start_multiplex_out(f_out);
600 keep_dirlinks = 0; /* Must be disabled on the sender. */
602 recv_exclude_list(f_in);
605 do_server_sender(f_in, f_out, argc, argv);
607 do_server_recv(f_in, f_out, argc, argv);
614 * This is called once the connection has been negotiated. It is used
615 * for rsyncd, remote-shell, and local connections.
617 int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
619 struct file_list *flist = NULL;
620 int status = 0, status2 = 0;
621 char *local_name = NULL;
623 cleanup_child_pid = pid;
625 /* This is the heart of the read_batch approach:
626 * Switcher-roo the file descriptors, and
627 * nobody's the wiser. */
631 f_out = do_open("/dev/null", O_WRONLY, 0);
632 assert(am_sender == 0);
634 set_nonblocking(f_in);
635 set_nonblocking(f_out);
638 setup_protocol(f_out,f_in);
640 if (protocol_version >= 23 && !read_batch)
641 io_start_multiplex_in(f_in);
644 keep_dirlinks = 0; /* Must be disabled on the sender. */
645 io_start_buffering_out(f_out);
648 if (delete_mode && !delete_excluded)
649 send_exclude_list(f_out);
650 if (remote_filesfrom_file)
654 start_write_batch(f_out);
655 /* Can be unconditional, but this is theoretically
656 * more efficent for read_batch case. */
657 if (!read_batch) /* don't write to pipe */
658 flist = send_file_list(f_out,argc,argv);
660 rprintf(FINFO,"file list sent\n");
662 io_flush(NORMAL_FLUSH);
663 send_files(flist,f_out,f_in);
664 io_flush(FULL_FLUSH);
665 if (protocol_version >= 24) {
666 /* final goodbye message */
671 rprintf(FINFO,"client_run waiting on %d\n", (int) pid);
672 io_flush(FULL_FLUSH);
673 wait_process(pid, &status);
676 io_flush(FULL_FLUSH);
677 exit_cleanup(status);
683 /* Can be unconditional, but this is theoretically more
684 * efficient for the read_batch case. */
686 send_exclude_list(f_out);
688 if (filesfrom_fd >= 0) {
689 io_set_filesfrom_fds(filesfrom_fd, f_out);
694 start_write_batch(f_in);
695 flist = recv_file_list(f_in);
696 if (!flist || flist->count == 0) {
697 rprintf(FINFO, "client: nothing to do: "
698 "perhaps you need to specify some filenames or "
699 "the --recursive option?\n");
703 local_name = get_local_name(flist,argv[0]);
705 status2 = do_recv(f_in,f_out,flist,local_name);
709 rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid);
710 io_flush(FULL_FLUSH);
711 wait_process(pid, &status);
714 return MAX(status, status2);
717 static int copy_argv (char *argv[])
721 for (i = 0; argv[i]; i++) {
722 if (!(argv[i] = strdup(argv[i]))) {
723 rprintf (FERROR, "out of memory at %s(%d)\n",
734 * Start a client for either type of remote connection. Work out
735 * whether the arguments request a remote shell or rsyncd connection,
736 * and call the appropriate connection function, then run_client.
738 * Calls either start_socket_client (for sockets) or do_cmd and
739 * client_run (for ssh).
741 static int start_client(int argc, char *argv[])
744 char *shell_machine = NULL;
745 char *shell_path = NULL;
746 char *shell_user = NULL;
752 /* Don't clobber argv[] so that ps(1) can still show the right
754 if ((rc = copy_argv(argv)))
757 /* rsync:// always uses rsync server over direct socket connection */
758 if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0
762 host = argv[0] + strlen(URL_PREFIX);
763 p = strchr(host,'/');
770 p = strchr(host,':');
772 rsync_port = atoi(p+1);
775 return start_socket_client(host, path, argc-1, argv+1);
778 if (!read_batch) { /* for read_batch, NO source is specified */
779 p = find_colon(argv[0]);
780 if (p) { /* source is remote */
781 if (remote_filesfrom_file
782 && remote_filesfrom_file != files_from + 1
783 && strncmp(files_from, argv[0], p-argv[0]+1) != 0) {
785 "--files-from hostname is not transfer hostname\n");
786 exit_cleanup(RERR_SYNTAX);
788 if (p[1] == ':') { /* double colon */
791 return start_socket_client(argv[0], p+2,
798 if (argc < 1) { /* destination required */
800 exit_cleanup(RERR_SYNTAX);
805 shell_machine = argv[0];
808 } else { /* source is local */
811 /* rsync:// destination uses rsync server over direct socket */
812 if (strncasecmp(URL_PREFIX, argv[argc-1], strlen(URL_PREFIX)) == 0) {
815 host = argv[argc-1] + strlen(URL_PREFIX);
816 p = strchr(host,'/');
823 p = strchr(host,':');
825 rsync_port = atoi(p+1);
828 return start_socket_client(host, path, argc-1, argv);
831 p = find_colon(argv[argc-1]); /* look in dest arg */
832 if (p && remote_filesfrom_file
833 && remote_filesfrom_file != files_from + 1
834 && strncmp(files_from, argv[argc-1], p-argv[argc-1]+1) != 0) {
836 "--files-from hostname is not transfer hostname\n");
837 exit_cleanup(RERR_SYNTAX);
839 if (!p) { /* no colon found, so src & dest are local */
841 if (remote_filesfrom_file) {
843 "--files-from is remote but transfer is local\n");
844 exit_cleanup(RERR_SYNTAX);
846 } else if (p[1] == ':') { /* double colon */
849 return start_socket_client(argv[argc-1], p+2,
858 exit_cleanup(RERR_SYNTAX);
862 shell_machine = NULL;
863 shell_path = argv[argc-1];
866 shell_machine = argv[argc-1];
871 } else { /* read_batch */
873 shell_path = argv[argc-1];
874 if (find_colon(shell_path)) {
875 rprintf(FERROR, "remote destination is not allowed with --read-batch\n");
876 exit_cleanup(RERR_SYNTAX);
881 p = strrchr(shell_machine,'@');
884 shell_user = shell_machine;
890 rprintf(FINFO,"cmd=%s machine=%s user=%s path=%s\n",
891 shell_cmd?shell_cmd:"",
892 shell_machine?shell_machine:"",
893 shell_user?shell_user:"",
894 shell_path?shell_path:"");
897 /* for remote source, only single dest arg can remain ... */
898 if (!am_sender && argc > 1) {
900 exit_cleanup(RERR_SYNTAX);
903 /* ... or no dest at all */
904 if (!am_sender && argc == 0) {
908 pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,
911 /* if we're running an rsync server on the remote host over a
912 * remote shell command, we need to do the RSYNCD protocol first */
913 if (daemon_over_rsh) {
915 tmpret = start_inband_exchange(shell_user, shell_path,
921 ret = client_run(f_in, f_out, pid, argc, argv);
930 static RETSIGTYPE sigusr1_handler(UNUSED(int val))
932 exit_cleanup(RERR_SIGNAL);
935 static RETSIGTYPE sigusr2_handler(UNUSED(int val))
937 if (log_got_error) _exit(RERR_PARTIAL);
941 static RETSIGTYPE sigchld_handler(UNUSED(int val))
946 /* An empty waitpid() loop was put here by Tridge and we could never
947 * get him to explain why he put it in, so rather than taking it
948 * out we're instead saving the child exit statuses for later use.
949 * The waitpid() loop presumably eliminates all possibility of leaving
950 * zombie children, maybe that's why he did it.
952 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
953 /* save the child's exit status */
954 for (cnt = 0; cnt < MAXCHILDPROCS; cnt++) {
955 if (pid_stat_table[cnt].pid == 0) {
956 pid_stat_table[cnt].pid = pid;
957 pid_stat_table[cnt].status = status;
967 * This routine catches signals and tries to send them to gdb.
969 * Because it's called from inside a signal handler it ought not to
970 * use too many library routines.
972 * @todo Perhaps use "screen -X" instead/as well, to help people
973 * debugging without easy access to X. Perhaps use an environment
974 * variable, or just call a script?
976 * @todo The /proc/ magic probably only works on Linux (and
977 * Solaris?) Can we be more portable?
979 #ifdef MAINTAINER_MODE
980 const char *get_panic_action(void)
982 const char *cmd_fmt = getenv("RSYNC_PANIC_ACTION");
987 return "xterm -display :0 -T Panic -n Panic "
988 "-e gdb /proc/%d/exe %d";
993 * Handle a fatal signal by launching a debugger, controlled by $RSYNC_PANIC_ACTION.
995 * This signal handler is only installed if we were configured with
996 * --enable-maintainer-mode. Perhaps it should always be on and we
997 * should just look at the environment variable, but I'm a bit leery
998 * of a signal sending us into a busy loop.
1000 static RETSIGTYPE rsync_panic_handler(UNUSED(int whatsig))
1005 sprintf(cmd_buf, get_panic_action(),
1006 getpid(), getpid());
1008 /* Unless we failed to execute gdb, we allow the process to
1009 * continue. I'm not sure if that's right. */
1010 ret = system(cmd_buf);
1017 int main(int argc,char *argv[])
1026 signal(SIGUSR1, sigusr1_handler);
1027 signal(SIGUSR2, sigusr2_handler);
1028 signal(SIGCHLD, sigchld_handler);
1029 #ifdef MAINTAINER_MODE
1030 signal(SIGSEGV, rsync_panic_handler);
1031 signal(SIGFPE, rsync_panic_handler);
1032 signal(SIGABRT, rsync_panic_handler);
1033 signal(SIGBUS, rsync_panic_handler);
1034 #endif /* def MAINTAINER_MODE */
1036 starttime = time(NULL);
1037 am_root = (MY_UID() == 0);
1039 memset(&stats, 0, sizeof(stats));
1043 exit_cleanup(RERR_SYNTAX);
1046 /* we set a 0 umask so that correct file permissions can be
1048 orig_umask = (int)umask(0);
1050 if (!parse_arguments(&argc, (const char ***) &argv, 1)) {
1051 /* FIXME: We ought to call the same error-handling
1052 * code here, rather than relying on getopt. */
1054 exit_cleanup(RERR_SYNTAX);
1057 signal(SIGINT,SIGNAL_CAST sig_int);
1058 signal(SIGHUP,SIGNAL_CAST sig_int);
1059 signal(SIGTERM,SIGNAL_CAST sig_int);
1061 /* Ignore SIGPIPE; we consistently check error codes and will
1063 signal(SIGPIPE, SIG_IGN);
1065 /* Initialize push_dir here because on some old systems getcwd
1066 * (implemented by forking "pwd" and reading its output) doesn't
1067 * work when there are other child processes. Also, on all systems
1068 * that implement getcwd that way "pwd" can't be found after chroot. */
1073 if (write_batch || read_batch) {
1075 write_batch_argvs_file(orig_argc, orig_argv);
1077 batch_fd = do_open(batch_prefix,
1078 write_batch ? O_WRONLY | O_CREAT | O_TRUNC
1079 : O_RDONLY, S_IRUSR | S_IWUSR);
1081 rsyserr(FERROR, errno, "Batch file %s open error",
1083 exit_cleanup(RERR_FILEIO);
1087 if (am_daemon && !am_server)
1088 return daemon_main();
1092 exit_cleanup(RERR_SYNTAX);
1096 verbose = MAX(verbose,1);
1099 set_nonblocking(STDIN_FILENO);
1100 set_nonblocking(STDOUT_FILENO);
1102 return start_daemon(STDIN_FILENO, STDOUT_FILENO);
1103 start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv);
1106 ret = start_client(argc, argv);
1108 exit_cleanup(RERR_STARTCLIENT);