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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "util.h"
#include "virt.h"
#include "fileio.h"
static bool arg_skip = false;
static bool arg_force = false;
static int parse_proc_cmdline(void) {
_cleanup_free_ char *line = NULL;
char *w, *state;
size_t l;
int r;
if (detect_container(NULL) > 0)
return 0;
r = read_one_line_file("/proc/cmdline", &line);
if (r < 0) {
log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
return 0;
}
FOREACH_WORD_QUOTED(w, l, line, state) {
if (strneq(w, "quotacheck.mode=auto", l))
arg_force = arg_skip = false;
else if (strneq(w, "quotacheck.mode=force", l))
arg_force = true;
else if (strneq(w, "quotacheck.mode=skip", l))
arg_skip = true;
else if (startswith(w, "quotacheck"))
log_warning("Invalid quotacheck parameter. Ignoring.");
#ifdef HAVE_SYSV_COMPAT
else if (strneq(w, "forcequotacheck", l)) {
log_error("Please use 'quotacheck.mode=force' rather than 'forcequotacheck' on the kernel command line.");
arg_force = true;
}
#endif
}
return 0;
}
static void test_files(void) {
#ifdef HAVE_SYSV_COMPAT
if (access("/forcequotacheck", F_OK) >= 0) {
log_error("Please pass 'quotacheck.mode=force' on the kernel command line rather than creating /forcequotacheck on the root file system.");
arg_force = true;
}
#endif
}
int main(int argc, char *argv[]) {
static const char * const cmdline[] = {
QUOTACHECK,
"-anug",
NULL
};
pid_t pid;
if (argc > 1) {
log_error("This program takes no arguments.");
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
umask(0022);
parse_proc_cmdline();
test_files();
if (!arg_force) {
if (arg_skip)
return EXIT_SUCCESS;
if (access("/run/systemd/quotacheck", F_OK) < 0)
return EXIT_SUCCESS;
}
pid = fork();
if (pid < 0) {
log_error("fork(): %m");
return EXIT_FAILURE;
} else if (pid == 0) {
/* Child */
execv(cmdline[0], (char**) cmdline);
_exit(1); /* Operational error */
}
return wait_for_terminate_and_warn("quotacheck", pid) >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
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