Commit | Line | Data |
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0f78b815 WD |
1 | /* |
2 | * End-of-run cleanup routines. | |
3 | * | |
4 | * Copyright (C) 1996-2000 Andrew Tridgell | |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2002 Martin Pool | |
445640e8 | 7 | * Copyright (C) 2003-2009 Wayne Davison |
0f78b815 WD |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
8e41b68e WD |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 3 of the License, or | |
12 | * (at your option) any later version. | |
0f78b815 WD |
13 | * |
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. | |
18 | * | |
e7c67065 | 19 | * You should have received a copy of the GNU General Public License along |
4fd842f9 | 20 | * with this program; if not, visit the http://fsf.org website. |
0f78b815 | 21 | */ |
2f03f956 AT |
22 | |
23 | #include "rsync.h" | |
24 | ||
1cfcb8af WD |
25 | extern int am_server; |
26 | extern int am_daemon; | |
6e86c951 WD |
27 | extern int io_error; |
28 | extern int keep_partial; | |
3f0211b6 | 29 | extern int got_xfer_error; |
d45898df | 30 | extern char *partial_dir; |
1cfcb8af | 31 | extern char *logfile_name; |
6e86c951 | 32 | |
44e604f4 | 33 | #ifdef HAVE_SIGACTION |
2b28968d WD |
34 | static struct sigaction sigact; |
35 | #endif | |
36 | ||
9f639210 DD |
37 | /** |
38 | * Close all open sockets and files, allowing a (somewhat) graceful | |
39 | * shutdown() of socket connections. This eliminates the abortive | |
40 | * TCP RST sent by a Winsock-based system when the close() occurs. | |
41 | **/ | |
18d6b679 | 42 | void close_all(void) |
9f639210 DD |
43 | { |
44 | #ifdef SHUTDOWN_ALL_SOCKETS | |
45 | int max_fd; | |
46 | int fd; | |
47 | int ret; | |
58fef0ac | 48 | STRUCT_STAT st; |
9f639210 DD |
49 | |
50 | max_fd = sysconf(_SC_OPEN_MAX) - 1; | |
51 | for (fd = max_fd; fd >= 0; fd--) { | |
58fef0ac | 52 | if ((ret = do_fstat(fd, &st)) == 0) { |
8186ae6b | 53 | if (is_a_socket(fd)) |
9f639210 | 54 | ret = shutdown(fd, 2); |
9f639210 DD |
55 | ret = close(fd); |
56 | } | |
57 | } | |
58 | #endif | |
59 | } | |
60 | ||
e0fde757 MP |
61 | /** |
62 | * @file cleanup.c | |
63 | * | |
64 | * Code for handling interrupted transfers. Depending on the @c | |
65 | * --partial option, we may either delete the temporary file, or go | |
66 | * ahead and overwrite the destination. This second behaviour only | |
67 | * occurs if we've sent literal data and therefore hopefully made | |
68 | * progress on the transfer. | |
69 | **/ | |
70 | ||
71 | /** | |
72 | * Set to True once literal data has been sent across the link for the | |
73 | * current file. (????) | |
74 | * | |
75 | * Handling the cleanup when a transfer is interrupted is tricky when | |
76 | * --partial is selected. We need to ensure that the partial file is | |
77 | * kept if any real data has been transferred. | |
78 | **/ | |
8186ae6b | 79 | int cleanup_got_literal = 0; |
2f03f956 | 80 | |
93204cca WD |
81 | static const char *cleanup_fname; |
82 | static const char *cleanup_new_fname; | |
2f03f956 | 83 | static struct file_struct *cleanup_file; |
b6609caf | 84 | static int cleanup_fd_r, cleanup_fd_w; |
65fc84b3 | 85 | static pid_t cleanup_pid = 0; |
2f03f956 | 86 | |
19b27a48 | 87 | pid_t cleanup_child_pid = -1; |
ef1aa910 | 88 | |
e0fde757 | 89 | /** |
b0f451eb | 90 | * Eventually calls exit(), passing @p code, therefore does not return. |
e0fde757 MP |
91 | * |
92 | * @param code one of the RERR_* codes from errcode.h. | |
93 | **/ | |
b1b54199 | 94 | NORETURN void _exit_cleanup(int code, const char *file, int line) |
2f03f956 | 95 | { |
154c345d WD |
96 | static int cleanup_step = 0; |
97 | static int exit_code = 0; | |
98 | static int unmodified_code = 0; | |
2f03f956 | 99 | |
2b28968d WD |
100 | SIGACTION(SIGUSR1, SIG_IGN); |
101 | SIGACTION(SIGUSR2, SIG_IGN); | |
2f03f956 | 102 | |
154c345d WD |
103 | if (exit_code) /* Preserve first error code when recursing. */ |
104 | code = exit_code; | |
b1b54199 | 105 | |
969cdffb WD |
106 | /* If this is the exit at the end of the run, the server side |
107 | * should not attempt to output a message (see log.c). */ | |
108 | if (am_server && code == 0) | |
109 | am_server = 2; | |
110 | ||
154c345d WD |
111 | /* Some of our actions might cause a recursive call back here, so we |
112 | * keep track of where we are in the cleanup and never repeat a step. */ | |
113 | switch (cleanup_step) { | |
e3794138 | 114 | #include "case_N.h" /* case 0: cleanup_step++; */ |
154c345d WD |
115 | |
116 | exit_code = unmodified_code = code; | |
9098bbf3 | 117 | |
154c345d WD |
118 | if (verbose > 3) { |
119 | rprintf(FINFO, | |
120 | "_exit_cleanup(code=%d, file=%s, line=%d): entered\n", | |
121 | code, file, line); | |
19b27a48 | 122 | } |
19b27a48 | 123 | |
154c345d | 124 | /* FALLTHROUGH */ |
e3794138 | 125 | #include "case_N.h" |
154c345d WD |
126 | |
127 | if (cleanup_child_pid != -1) { | |
128 | int status; | |
129 | int pid = wait_process(cleanup_child_pid, &status, WNOHANG); | |
130 | if (pid == cleanup_child_pid) { | |
131 | status = WEXITSTATUS(status); | |
132 | if (status > code) | |
133 | code = exit_code = status; | |
134 | } | |
09e2bbce | 135 | } |
9b73d1c0 | 136 | |
154c345d | 137 | /* FALLTHROUGH */ |
e3794138 | 138 | #include "case_N.h" |
154c345d WD |
139 | |
140 | if (cleanup_got_literal && cleanup_fname && cleanup_new_fname | |
141 | && keep_partial && handle_partial_dir(cleanup_new_fname, PDIR_CREATE)) { | |
93204cca | 142 | const char *fname = cleanup_fname; |
154c345d WD |
143 | cleanup_fname = NULL; |
144 | if (cleanup_fd_r != -1) | |
145 | close(cleanup_fd_r); | |
146 | if (cleanup_fd_w != -1) { | |
147 | flush_write_file(cleanup_fd_w); | |
148 | close(cleanup_fd_w); | |
149 | } | |
16edf865 | 150 | finish_transfer(cleanup_new_fname, fname, NULL, NULL, |
154c345d WD |
151 | cleanup_file, 0, !partial_dir); |
152 | } | |
153 | ||
154 | /* FALLTHROUGH */ | |
e3794138 | 155 | #include "case_N.h" |
154c345d WD |
156 | |
157 | io_flush(FULL_FLUSH); | |
158 | ||
159 | /* FALLTHROUGH */ | |
e3794138 | 160 | #include "case_N.h" |
154c345d WD |
161 | |
162 | if (cleanup_fname) | |
163 | do_unlink(cleanup_fname); | |
164 | if (code) | |
165 | kill_all(SIGUSR1); | |
166 | if (cleanup_pid && cleanup_pid == getpid()) { | |
167 | char *pidf = lp_pid_file(); | |
168 | if (pidf && *pidf) | |
169 | unlink(lp_pid_file()); | |
170 | } | |
171 | ||
172 | if (code == 0) { | |
173 | if (io_error & IOERR_DEL_LIMIT) | |
174 | code = exit_code = RERR_DEL_LIMIT; | |
175 | if (io_error & IOERR_VANISHED) | |
176 | code = exit_code = RERR_VANISHED; | |
3f0211b6 | 177 | if (io_error & IOERR_GENERAL || got_xfer_error) |
154c345d WD |
178 | code = exit_code = RERR_PARTIAL; |
179 | } | |
180 | ||
181 | if (code || am_daemon || (logfile_name && (am_server || !verbose))) | |
182 | log_exit(code, file, line); | |
183 | ||
184 | /* FALLTHROUGH */ | |
e3794138 | 185 | #include "case_N.h" |
154c345d WD |
186 | |
187 | if (verbose > 2) { | |
188 | rprintf(FINFO, | |
189 | "_exit_cleanup(code=%d, file=%s, line=%d): " | |
190 | "about to call exit(%d)\n", | |
191 | unmodified_code, file, line, code); | |
192 | } | |
193 | ||
194 | /* FALLTHROUGH */ | |
e3794138 | 195 | #include "case_N.h" |
ff81e809 | 196 | |
377d22ab WD |
197 | if (am_server && code) |
198 | msleep(100); | |
154c345d | 199 | close_all(); |
19b27a48 | 200 | |
154c345d WD |
201 | /* FALLTHROUGH */ |
202 | default: | |
203 | break; | |
6e86c951 | 204 | } |
9098bbf3 | 205 | |
2f03f956 AT |
206 | exit(code); |
207 | } | |
208 | ||
209 | void cleanup_disable(void) | |
210 | { | |
03dbc0b8 | 211 | cleanup_fname = cleanup_new_fname = NULL; |
2f03f956 AT |
212 | cleanup_got_literal = 0; |
213 | } | |
214 | ||
215 | ||
93204cca | 216 | void cleanup_set(const char *fnametmp, const char *fname, struct file_struct *file, |
b6609caf | 217 | int fd_r, int fd_w) |
2f03f956 | 218 | { |
03dbc0b8 WD |
219 | cleanup_fname = fnametmp; |
220 | cleanup_new_fname = fname; /* can be NULL on a partial-dir failure */ | |
2f03f956 | 221 | cleanup_file = file; |
b6609caf WD |
222 | cleanup_fd_r = fd_r; |
223 | cleanup_fd_w = fd_w; | |
2f03f956 | 224 | } |
8638dd48 | 225 | |
65fc84b3 | 226 | void cleanup_set_pid(pid_t pid) |
8638dd48 DD |
227 | { |
228 | cleanup_pid = pid; | |
229 | } |