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b2423f1f 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 <unistd.h> | |
23 | #include <fcntl.h> | |
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <sys/stat.h> | |
27 | #include <limits.h> | |
28 | #include <dirent.h> | |
29 | ||
30 | #include "log.h" | |
31 | #include "util.h" | |
32 | #include "strv.h" | |
33 | ||
b2423f1f | 34 | int main(int argc, char *argv[]) { |
db1413d7 | 35 | int r = EXIT_FAILURE; |
b2423f1f LP |
36 | char **arguments = NULL; |
37 | unsigned n_arguments = 0, n_allocated = 0; | |
db1413d7 | 38 | char **files, **fn; |
b2423f1f LP |
39 | |
40 | if (argc > 1) { | |
41 | log_error("This program takes no argument."); | |
22f4096c | 42 | return EXIT_FAILURE; |
b2423f1f LP |
43 | } |
44 | ||
45 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
46 | log_parse_environment(); | |
47 | log_open(); | |
48 | ||
49 | if (!(arguments = strv_new("/sbin/modprobe", "-sab", "--", NULL))) { | |
50 | log_error("Failed to allocate string array"); | |
51 | goto finish; | |
52 | } | |
53 | ||
54 | n_arguments = n_allocated = 3; | |
55 | ||
44143309 KS |
56 | if (conf_files_list(&files, ".conf", |
57 | "/run/modules-load.d", | |
58 | "/etc/modules-load.d", | |
223a3558 | 59 | "/usr/local/lib/modules-load.d", |
44143309 | 60 | "/usr/lib/modules-load.d", |
223a3558 | 61 | "/lib/modules-load.d", |
44143309 KS |
62 | NULL) < 0) { |
63 | log_error("Failed to enumerate modules-load.d files: %s", strerror(-r)); | |
b2423f1f LP |
64 | goto finish; |
65 | } | |
66 | ||
22f4096c | 67 | r = EXIT_SUCCESS; |
b2423f1f | 68 | |
db1413d7 | 69 | STRV_FOREACH(fn, files) { |
b2423f1f LP |
70 | FILE *f; |
71 | ||
db1413d7 | 72 | f = fopen(*fn, "re"); |
b2423f1f | 73 | if (!f) { |
db1413d7 | 74 | if (errno == ENOENT) |
70ca520f LP |
75 | continue; |
76 | ||
db1413d7 | 77 | log_error("Failed to open %s: %m", *fn); |
da19d5c1 | 78 | free(fn); |
22f4096c | 79 | r = EXIT_FAILURE; |
b2423f1f LP |
80 | continue; |
81 | } | |
82 | ||
db1413d7 | 83 | log_debug("apply: %s\n", *fn); |
b2423f1f LP |
84 | for (;;) { |
85 | char line[LINE_MAX], *l, *t; | |
86 | ||
87 | if (!(fgets(line, sizeof(line), f))) | |
88 | break; | |
89 | ||
90 | l = strstrip(line); | |
91 | if (*l == '#' || *l == 0) | |
92 | continue; | |
93 | ||
94 | if (!(t = strdup(l))) { | |
95 | log_error("Failed to allocate module name."); | |
96 | continue; | |
97 | } | |
98 | ||
99 | if (n_arguments >= n_allocated) { | |
100 | char **a; | |
101 | unsigned m; | |
102 | ||
103 | m = MAX(16U, n_arguments*2); | |
104 | ||
105 | if (!(a = realloc(arguments, sizeof(char*) * (m+1)))) { | |
106 | log_error("Failed to increase module array size."); | |
107 | free(t); | |
22f4096c | 108 | r = EXIT_FAILURE; |
b2423f1f LP |
109 | continue; |
110 | } | |
111 | ||
112 | arguments = a; | |
113 | n_allocated = m; | |
114 | } | |
115 | ||
116 | arguments[n_arguments++] = t; | |
117 | } | |
118 | ||
119 | if (ferror(f)) { | |
22f4096c | 120 | r = EXIT_FAILURE; |
b2423f1f LP |
121 | log_error("Failed to read from file: %m"); |
122 | } | |
123 | ||
124 | fclose(f); | |
125 | } | |
126 | ||
db1413d7 | 127 | strv_free(files); |
b2423f1f LP |
128 | finish: |
129 | ||
130 | if (n_arguments > 3) { | |
131 | arguments[n_arguments] = NULL; | |
132 | execv("/sbin/modprobe", arguments); | |
133 | ||
134 | log_error("Failed to execute /sbin/modprobe: %m"); | |
22f4096c | 135 | r = EXIT_FAILURE; |
b2423f1f LP |
136 | } |
137 | ||
138 | strv_free(arguments); | |
139 | ||
140 | return r; | |
141 | } |