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 along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
29 extern int keep_partial;
30 extern int log_got_error;
31 extern char *partial_dir;
32 extern char *logfile_name;
35 static struct sigaction sigact;
39 * Close all open sockets and files, allowing a (somewhat) graceful
40 * shutdown() of socket connections. This eliminates the abortive
41 * TCP RST sent by a Winsock-based system when the close() occurs.
45 #ifdef SHUTDOWN_ALL_SOCKETS
51 max_fd = sysconf(_SC_OPEN_MAX) - 1;
52 for (fd = max_fd; fd >= 0; fd--) {
53 if ((ret = do_fstat(fd, &st)) == 0) {
55 ret = shutdown(fd, 2);
65 * Code for handling interrupted transfers. Depending on the @c
66 * --partial option, we may either delete the temporary file, or go
67 * ahead and overwrite the destination. This second behaviour only
68 * occurs if we've sent literal data and therefore hopefully made
69 * progress on the transfer.
73 * Set to True once literal data has been sent across the link for the
74 * current file. (????)
76 * Handling the cleanup when a transfer is interrupted is tricky when
77 * --partial is selected. We need to ensure that the partial file is
78 * kept if any real data has been transferred.
80 int cleanup_got_literal = 0;
82 static char *cleanup_fname;
83 static char *cleanup_new_fname;
84 static struct file_struct *cleanup_file;
85 static int cleanup_fd_r, cleanup_fd_w;
86 static pid_t cleanup_pid = 0;
88 pid_t cleanup_child_pid = -1;
91 * Eventually calls exit(), passing @p code, therefore does not return.
93 * @param code one of the RERR_* codes from errcode.h.
95 NORETURN void _exit_cleanup(int code, const char *file, int line)
97 static int cleanup_step = 0;
98 static int exit_code = 0;
99 static int unmodified_code = 0;
101 SIGACTION(SIGUSR1, SIG_IGN);
102 SIGACTION(SIGUSR2, SIG_IGN);
104 if (exit_code) /* Preserve first error code when recursing. */
107 /* Some of our actions might cause a recursive call back here, so we
108 * keep track of where we are in the cleanup and never repeat a step. */
109 switch (cleanup_step) {
110 #include "case_N.h" /* case 0: cleanup_step++; */
112 exit_code = unmodified_code = code;
116 "_exit_cleanup(code=%d, file=%s, line=%d): entered\n",
123 if (cleanup_child_pid != -1) {
125 int pid = wait_process(cleanup_child_pid, &status, WNOHANG);
126 if (pid == cleanup_child_pid) {
127 status = WEXITSTATUS(status);
129 code = exit_code = status;
136 if (cleanup_got_literal && cleanup_fname && cleanup_new_fname
137 && keep_partial && handle_partial_dir(cleanup_new_fname, PDIR_CREATE)) {
138 char *fname = cleanup_fname;
139 cleanup_fname = NULL;
140 if (cleanup_fd_r != -1)
142 if (cleanup_fd_w != -1) {
143 flush_write_file(cleanup_fd_w);
146 finish_transfer(cleanup_new_fname, fname, NULL,
147 cleanup_file, 0, !partial_dir);
153 io_flush(FULL_FLUSH);
159 do_unlink(cleanup_fname);
162 if (cleanup_pid && cleanup_pid == getpid()) {
163 char *pidf = lp_pid_file();
165 unlink(lp_pid_file());
169 if (io_error & IOERR_DEL_LIMIT)
170 code = exit_code = RERR_DEL_LIMIT;
171 if (io_error & IOERR_VANISHED)
172 code = exit_code = RERR_VANISHED;
173 if (io_error & IOERR_GENERAL || log_got_error)
174 code = exit_code = RERR_PARTIAL;
177 if (code || am_daemon || (logfile_name && (am_server || !verbose)))
178 log_exit(code, file, line);
185 "_exit_cleanup(code=%d, file=%s, line=%d): "
186 "about to call exit(%d)\n",
187 unmodified_code, file, line, code);
203 void cleanup_disable(void)
205 cleanup_fname = cleanup_new_fname = NULL;
206 cleanup_got_literal = 0;
210 void cleanup_set(char *fnametmp, char *fname, struct file_struct *file,
213 cleanup_fname = fnametmp;
214 cleanup_new_fname = fname; /* can be NULL on a partial-dir failure */
220 void cleanup_set_pid(pid_t pid)