140 lines
4.2 KiB
C
140 lines
4.2 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <limits.h>
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#include <dirent.h>
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#include "log.h"
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#include "util.h"
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#include "strv.h"
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int main(int argc, char *argv[]) {
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int r = EXIT_FAILURE;
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char **arguments = NULL;
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unsigned n_arguments = 0, n_allocated = 0;
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char **files, **fn;
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if (argc > 1) {
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log_error("This program takes no argument.");
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return EXIT_FAILURE;
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}
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log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
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log_parse_environment();
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log_open();
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if (!(arguments = strv_new("/sbin/modprobe", "-sab", "--", NULL))) {
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log_error("Failed to allocate string array");
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goto finish;
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}
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n_arguments = n_allocated = 3;
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if (conf_files_list(&files, ".conf",
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"/run/modules-load.d",
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"/etc/modules-load.d",
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"/usr/lib/modules-load.d",
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NULL) < 0) {
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log_error("Failed to enumerate modules-load.d files: %s", strerror(-r));
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goto finish;
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}
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r = EXIT_SUCCESS;
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STRV_FOREACH(fn, files) {
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FILE *f;
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f = fopen(*fn, "re");
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if (!f) {
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if (errno == ENOENT)
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continue;
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log_error("Failed to open %s: %m", *fn);
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free(fn);
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r = EXIT_FAILURE;
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continue;
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}
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log_debug("apply: %s\n", *fn);
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for (;;) {
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char line[LINE_MAX], *l, *t;
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if (!(fgets(line, sizeof(line), f)))
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break;
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l = strstrip(line);
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if (*l == '#' || *l == 0)
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continue;
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if (!(t = strdup(l))) {
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log_error("Failed to allocate module name.");
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continue;
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}
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if (n_arguments >= n_allocated) {
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char **a;
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unsigned m;
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m = MAX(16U, n_arguments*2);
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if (!(a = realloc(arguments, sizeof(char*) * (m+1)))) {
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log_error("Failed to increase module array size.");
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free(t);
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r = EXIT_FAILURE;
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continue;
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}
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arguments = a;
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n_allocated = m;
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}
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arguments[n_arguments++] = t;
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}
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if (ferror(f)) {
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r = EXIT_FAILURE;
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log_error("Failed to read from file: %m");
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}
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fclose(f);
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}
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strv_free(files);
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finish:
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if (n_arguments > 3) {
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arguments[n_arguments] = NULL;
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execv("/sbin/modprobe", arguments);
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log_error("Failed to execute /sbin/modprobe: %m");
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r = EXIT_FAILURE;
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}
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strv_free(arguments);
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return r;
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}
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