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3d20ed6d LP |
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 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <stdbool.h> | |
24 | #include <string.h> | |
25 | #include <errno.h> | |
26 | #include <unistd.h> | |
27 | ||
28 | #include "util.h" | |
29 | ||
30 | static bool arg_skip = false; | |
31 | static bool arg_force = false; | |
32 | ||
33 | static int parse_proc_cmdline(void) { | |
34 | char *line, *w, *state; | |
35 | int r; | |
36 | size_t l; | |
37 | ||
03aea2ae | 38 | if (detect_container(NULL) > 0) |
2fc97846 LP |
39 | return 0; |
40 | ||
3d20ed6d LP |
41 | if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { |
42 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); | |
43 | return 0; | |
44 | } | |
45 | ||
46 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
47 | ||
48 | if (strneq(w, "quotacheck.mode=auto", l)) | |
49 | arg_force = arg_skip = false; | |
50 | else if (strneq(w, "quotacheck.mode=force", l)) | |
51 | arg_force = true; | |
52 | else if (strneq(w, "quotacheck.mode=skip", l)) | |
53 | arg_skip = true; | |
54 | else if (startswith(w, "quotacheck.mode")) | |
55 | log_warning("Invalid quotacheck.mode= parameter. Ignoring."); | |
1de4d79b | 56 | #if defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) |
3d20ed6d LP |
57 | else if (strneq(w, "forcequotacheck", l)) |
58 | arg_force = true; | |
59 | #endif | |
60 | } | |
61 | ||
62 | free(line); | |
63 | return 0; | |
64 | } | |
65 | ||
66 | static void test_files(void) { | |
1de4d79b AB |
67 | #if defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) |
68 | /* This exists only on Fedora or Mandriva */ | |
550c4dcc | 69 | if (access("/forcequotacheck", F_OK) >= 0) |
3d20ed6d LP |
70 | arg_force = true; |
71 | #endif | |
72 | } | |
73 | ||
74 | int main(int argc, char *argv[]) { | |
75 | static const char * const cmdline[] = { | |
76 | "/sbin/quotacheck", | |
77 | "-anug", | |
78 | NULL | |
79 | }; | |
80 | ||
81 | int r = EXIT_FAILURE; | |
82 | pid_t pid; | |
83 | ||
84 | if (argc > 1) { | |
85 | log_error("This program takes no arguments."); | |
86 | return EXIT_FAILURE; | |
87 | } | |
88 | ||
89 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
90 | log_parse_environment(); | |
91 | log_open(); | |
92 | ||
4c12626c LP |
93 | umask(0022); |
94 | ||
3d20ed6d LP |
95 | parse_proc_cmdline(); |
96 | test_files(); | |
97 | ||
98 | if (!arg_force) { | |
3d20ed6d LP |
99 | if (arg_skip) |
100 | return 0; | |
101 | ||
2b583ce6 | 102 | if (access("/run/systemd/quotacheck", F_OK) < 0) |
3d20ed6d LP |
103 | return 0; |
104 | } | |
105 | ||
106 | if ((pid = fork()) < 0) { | |
107 | log_error("fork(): %m"); | |
108 | goto finish; | |
109 | } else if (pid == 0) { | |
110 | /* Child */ | |
111 | execv(cmdline[0], (char**) cmdline); | |
112 | _exit(1); /* Operational error */ | |
113 | } | |
114 | ||
0a27cf3f | 115 | r = wait_for_terminate_and_warn("quotacheck", pid) == 0 ? EXIT_SUCCESS : EXIT_FAILURE; |
3d20ed6d LP |
116 | |
117 | finish: | |
118 | return r; | |
119 | } |