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git.ipfire.org Git - thirdparty/rsync.git/blob - cleanup.c
2 * End-of-run cleanup routines.
4 * Copyright (C) 1996-2000 Andrew Tridgell
5 * Copyright (C) 1996 Paul Mackerras
6 * Copyright (C) 2002 Martin Pool
7 * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 extern int keep_partial
;
28 extern int log_got_error
;
29 extern char *partial_dir
;
32 static struct sigaction sigact
;
36 * Close all open sockets and files, allowing a (somewhat) graceful
37 * shutdown() of socket connections. This eliminates the abortive
38 * TCP RST sent by a Winsock-based system when the close() occurs.
42 #ifdef SHUTDOWN_ALL_SOCKETS
48 max_fd
= sysconf(_SC_OPEN_MAX
) - 1;
49 for (fd
= max_fd
; fd
>= 0; fd
--) {
50 if ((ret
= do_fstat(fd
, &st
)) == 0) {
52 ret
= shutdown(fd
, 2);
62 * Code for handling interrupted transfers. Depending on the @c
63 * --partial option, we may either delete the temporary file, or go
64 * ahead and overwrite the destination. This second behaviour only
65 * occurs if we've sent literal data and therefore hopefully made
66 * progress on the transfer.
70 * Set to True once literal data has been sent across the link for the
71 * current file. (????)
73 * Handling the cleanup when a transfer is interrupted is tricky when
74 * --partial is selected. We need to ensure that the partial file is
75 * kept if any real data has been transferred.
77 int cleanup_got_literal
= 0;
79 static char *cleanup_fname
;
80 static char *cleanup_new_fname
;
81 static struct file_struct
*cleanup_file
;
82 static int cleanup_fd_r
, cleanup_fd_w
;
83 static pid_t cleanup_pid
= 0;
85 pid_t cleanup_child_pid
= -1;
88 * Eventually calls exit(), passing @p code, therefore does not return.
90 * @param code one of the RERR_* codes from errcode.h.
92 void _exit_cleanup(int code
, const char *file
, int line
)
95 static int inside_cleanup
= 0;
97 if (inside_cleanup
> 10) {
98 /* prevent the occasional infinite recursion */
103 SIGACTION(SIGUSR1
, SIG_IGN
);
104 SIGACTION(SIGUSR2
, SIG_IGN
);
107 rprintf(FINFO
,"_exit_cleanup(code=%d, file=%s, line=%d): entered\n",
111 if (cleanup_child_pid
!= -1) {
113 if (wait_process(cleanup_child_pid
, &status
, WNOHANG
)
114 == cleanup_child_pid
) {
115 status
= WEXITSTATUS(status
);
121 if (cleanup_got_literal
&& cleanup_fname
&& keep_partial
122 && handle_partial_dir(cleanup_new_fname
, PDIR_CREATE
)) {
123 char *fname
= cleanup_fname
;
124 cleanup_fname
= NULL
;
125 if (cleanup_fd_r
!= -1)
127 if (cleanup_fd_w
!= -1) {
128 flush_write_file(cleanup_fd_w
);
131 finish_transfer(cleanup_new_fname
, fname
, NULL
,
132 cleanup_file
, 0, !partial_dir
);
134 io_flush(FULL_FLUSH
);
136 do_unlink(cleanup_fname
);
139 if (cleanup_pid
&& cleanup_pid
== getpid()) {
140 char *pidf
= lp_pid_file();
142 unlink(lp_pid_file());
146 if (io_error
& IOERR_DEL_LIMIT
)
147 code
= RERR_DEL_LIMIT
;
148 if (io_error
& IOERR_VANISHED
)
149 code
= RERR_VANISHED
;
150 if (io_error
& IOERR_GENERAL
|| log_got_error
)
155 log_exit(code
, file
, line
);
158 rprintf(FINFO
,"_exit_cleanup(code=%d, file=%s, line=%d): about to call exit(%d)\n",
159 ocode
, file
, line
, code
);
166 void cleanup_disable(void)
168 cleanup_fname
= NULL
;
169 cleanup_got_literal
= 0;
173 void cleanup_set(char *fnametmp
, char *fname
, struct file_struct
*file
,
176 cleanup_fname
= fname
? fnametmp
: NULL
;
177 cleanup_new_fname
= fname
;
183 void cleanup_set_pid(pid_t pid
)