1 files changed, 124 insertions, 0 deletions
diff --git a/src/grp-initprogs/systemd-quotacheck/quotacheck.c b/src/grp-initprogs/systemd-quotacheck/quotacheck.c
new file mode 100644
index 0000000000..eadd78c9da
--- /dev/null
+++ b/src/grp-initprogs/systemd-quotacheck/quotacheck.c
@@ -0,0 +1,124 @@
+/***
+  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 <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+
+#include "systemd-basic/proc-cmdline.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+
+static bool arg_skip = false;
+static bool arg_force = false;
+
+static int parse_proc_cmdline_item(const char *key, const char *value) {
+
+        if (streq(key, "quotacheck.mode") && value) {
+
+                if (streq(value, "auto"))
+                        arg_force = arg_skip = false;
+                else if (streq(value, "force"))
+                        arg_force = true;
+                else if (streq(value, "skip"))
+                        arg_skip = true;
+                else
+                        log_warning("Invalid quotacheck.mode= parameter '%s'. Ignoring.", value);
+        }
+
+#ifdef HAVE_SYSV_COMPAT
+        else if (streq(key, "forcequotacheck") && !value) {
+                log_warning("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;
+        int r;
+
+        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);
+
+        r = parse_proc_cmdline(parse_proc_cmdline_item);
+        if (r < 0)
+                log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
+
+        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_errno(errno, "fork(): %m");
+                return EXIT_FAILURE;
+        } else if (pid == 0) {
+
+                /* Child */
+
+                (void) reset_all_signal_handlers();
+                (void) reset_signal_mask();
+                assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
+
+                execv(cmdline[0], (char**) cmdline);
+                _exit(1); /* Operational error */
+        }
+
+        r = wait_for_terminate_and_warn("quotacheck", pid, true);
+
+        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}