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15673083 MS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | Copyright 2011 Michal Schmidt | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
10 | under the terms of the GNU Lesser General Public License as published by |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
15673083 MS |
12 | (at your option) any later version. |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 17 | Lesser General Public License for more details. |
15673083 | 18 | |
5430f7f2 | 19 | You should have received a copy of the GNU Lesser General Public License |
15673083 MS |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
21 | ***/ | |
22 | ||
23 | #include <errno.h> | |
24 | #include <stdio.h> | |
25 | #include <unistd.h> | |
26 | ||
27 | #include "log.h" | |
28 | #include "util.h" | |
49e942b2 | 29 | #include "mkdir.h" |
15673083 MS |
30 | |
31 | #if defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA) | |
04b6f7c1 | 32 | #define SCRIPT_PATH_START "/etc/rc.d/rc.local" |
15673083 | 33 | #elif defined(TARGET_SUSE) |
04b6f7c1 | 34 | #define SCRIPT_PATH_START "/etc/init.d/boot.local" |
15673083 MS |
35 | #endif |
36 | ||
04b6f7c1 LP |
37 | #define SCRIPT_PATH_STOP "/sbin/halt.local" |
38 | ||
15673083 MS |
39 | const char *arg_dest = "/tmp"; |
40 | ||
04b6f7c1 | 41 | static int add_symlink(const char *service, const char *where) { |
15673083 MS |
42 | char *from = NULL, *to = NULL; |
43 | int r; | |
44 | ||
45 | assert(service); | |
46 | ||
47 | asprintf(&from, SYSTEM_DATA_UNIT_PATH "/%s", service); | |
04b6f7c1 | 48 | asprintf(&to, "%s/%s.wants/%s", arg_dest, where, service); |
15673083 MS |
49 | |
50 | if (!from || !to) { | |
669241a0 | 51 | log_error("Out of memory."); |
15673083 MS |
52 | r = -ENOMEM; |
53 | goto finish; | |
54 | } | |
55 | ||
d2e54fae | 56 | mkdir_parents_label(to, 0755); |
15673083 MS |
57 | |
58 | r = symlink(from, to); | |
59 | if (r < 0) { | |
60 | if (errno == EEXIST) | |
61 | r = 0; | |
62 | else { | |
63 | log_error("Failed to create symlink from %s to %s: %m", from, to); | |
64 | r = -errno; | |
65 | } | |
66 | } | |
67 | ||
68 | finish: | |
15673083 MS |
69 | free(from); |
70 | free(to); | |
71 | ||
72 | return r; | |
73 | } | |
74 | ||
75 | static bool file_is_executable(const char *f) { | |
76 | struct stat st; | |
77 | ||
78 | if (stat(f, &st) < 0) | |
79 | return false; | |
80 | ||
81 | return S_ISREG(st.st_mode) && (st.st_mode & 0111); | |
82 | } | |
83 | ||
84 | int main(int argc, char *argv[]) { | |
15673083 MS |
85 | int r = EXIT_SUCCESS; |
86 | ||
07719a21 LP |
87 | if (argc > 1 && argc != 4) { |
88 | log_error("This program takes three or no arguments."); | |
15673083 MS |
89 | return EXIT_FAILURE; |
90 | } | |
91 | ||
07719a21 LP |
92 | if (argc > 1) |
93 | arg_dest = argv[1]; | |
94 | ||
a6903061 | 95 | log_set_target(LOG_TARGET_SAFE); |
15673083 MS |
96 | log_parse_environment(); |
97 | log_open(); | |
98 | ||
07719a21 | 99 | umask(0022); |
15673083 | 100 | |
04b6f7c1 | 101 | if (file_is_executable(SCRIPT_PATH_START)) { |
15673083 MS |
102 | log_debug("Automatically adding rc-local.service."); |
103 | ||
04b6f7c1 | 104 | if (add_symlink("rc-local.service", "multi-user.target") < 0) |
15673083 | 105 | r = EXIT_FAILURE; |
04b6f7c1 | 106 | } |
15673083 | 107 | |
04b6f7c1 LP |
108 | if (file_is_executable(SCRIPT_PATH_STOP)) { |
109 | log_debug("Automatically adding halt-local.service."); | |
110 | ||
111 | if (add_symlink("halt-local.service", "final.target") < 0) | |
112 | r = EXIT_FAILURE; | |
15673083 MS |
113 | } |
114 | ||
115 | return r; | |
116 | } |