7d4904fe7a
This renames wait_for_terminate_and_warn() to wait_for_terminate_and_check(), and adds a flags parameter, that controls how much to log: there's one flag that means we log about abnormal stuff, and another one that controls whether we log about non-zero exit codes. Finally, there's a shortcut flag value for logging in both cases, as that's what we usually use. All callers are accordingly updated. At three occasions duplicate logging is removed, i.e. where the old function was called but logged in the caller, too.
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/***
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SPDX-License-Identifier: LGPL-2.1+
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This file is part of systemd.
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Copyright 2017 Zbigniew Jędrzejewski-Szmek
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser 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 <fcntl.h>
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#include <signal.h>
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#include <sys/prctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "alloc-util.h"
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#include "dissect-image.h"
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#include "signal-util.h"
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#include "string-util.h"
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static int makefs(const char *type, const char *device) {
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const char *mkfs;
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pid_t pid;
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int r;
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if (streq(type, "swap"))
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mkfs = "/sbin/mkswap";
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else
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mkfs = strjoina("/sbin/mkfs.", type);
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if (access(mkfs, X_OK) != 0)
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return log_error_errno(errno, "%s is not executable: %m", mkfs);
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r = safe_fork("(fsck)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
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if (r < 0)
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return r;
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if (r == 0) {
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const char *cmdline[3] = { mkfs, device, NULL };
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/* Child */
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execv(cmdline[0], (char**) cmdline);
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_exit(EXIT_FAILURE);
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}
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return wait_for_terminate_and_check(mkfs, pid, WAIT_LOG);
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}
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int main(int argc, char *argv[]) {
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const char *device, *type;
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_cleanup_free_ char *detected = NULL;
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struct stat st;
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int r;
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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if (argc != 3) {
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log_error("This program expects two arguments.");
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return EXIT_FAILURE;
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}
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type = argv[1];
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device = argv[2];
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if (stat(device, &st) < 0) {
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r = log_error_errno(errno, "Failed to stat \"%s\": %m", device);
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goto finish;
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}
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if (!S_ISBLK(st.st_mode))
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log_info("%s is not a block device.", device);
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r = probe_filesystem(device, &detected);
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if (r < 0) {
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log_warning_errno(r,
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r == -EUCLEAN ?
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"Cannot reliably determine probe \"%s\", refusing to proceed." :
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"Failed to probe \"%s\": %m",
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device);
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goto finish;
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}
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if (detected) {
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log_info("%s is not empty (type %s), exiting", device, detected);
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goto finish;
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}
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r = makefs(type, device);
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finish:
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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