aboutsummaryrefslogtreecommitdiff
path: root/src/swclock
diff options
context:
space:
mode:
authorWilliam Hubbs <w.d.hubbs@gmail.com>2022-04-06 10:51:55 -0500
committerWilliam Hubbs <w.d.hubbs@gmail.com>2022-04-06 10:51:55 -0500
commit391d12db48754861b5cecac92ee3321597ee02c1 (patch)
treeb42fad5a31ca342de7b7ecf1fb78784194c1400c /src/swclock
parent0efc1b133e4182bd53cde78153bd8b5cc2e99448 (diff)
migrate fully to meson build system
- drop old build system - move shared include and source files to common directory - drop "rc-" prefix from shared include and source files - move executable-specific code to individual directories under src - adjust top-level .gitignore file for new build system This closes #489.
Diffstat (limited to 'src/swclock')
-rw-r--r--src/swclock/meson.build7
-rw-r--r--src/swclock/swclock.c106
2 files changed, 113 insertions, 0 deletions
diff --git a/src/swclock/meson.build b/src/swclock/meson.build
new file mode 100644
index 00000000..1a85f115
--- /dev/null
+++ b/src/swclock/meson.build
@@ -0,0 +1,7 @@
+executable('swclock',
+ ['swclock.c', misc_c, usage_c, version_h],
+ c_args : cc_branding_flags,
+ include_directories: [incdir, einfo_incdir, rc_incdir],
+ link_with: [libeinfo,librc],
+ install: true,
+ install_dir: rc_sbindir)
diff --git a/src/swclock/swclock.c b/src/swclock/swclock.c
new file mode 100644
index 00000000..5fc5d395
--- /dev/null
+++ b/src/swclock/swclock.c
@@ -0,0 +1,106 @@
+/*
+ * swclock.c
+ * Sets the system time from the mtime of the given file.
+ * This is useful for systems who do not have a working RTC and rely on ntp.
+ * OpenRC relies on the correct system time for a lot of operations
+ * so this is needed quite early.
+ */
+
+/*
+ * Copyright (c) 2007-2015 The OpenRC Authors.
+ * See the Authors file at the top-level directory of this distribution and
+ * https://github.com/OpenRC/openrc/blob/HEAD/AUTHORS
+ *
+ * This file is part of OpenRC. It is subject to the license terms in
+ * the LICENSE file found in the top-level directory of this
+ * distribution and at https://github.com/OpenRC/openrc/blob/HEAD/LICENSE
+ * This file may not be copied, modified, propagated, or distributed
+ * except according to the terms contained in the LICENSE file.
+ */
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <utime.h>
+
+#include "einfo.h"
+#include "rc.h"
+#include "misc.h"
+#include "_usage.h"
+
+#define RC_SHUTDOWNTIME RC_SVCDIR "/shutdowntime"
+
+const char *applet = NULL;
+const char *extraopts = "file";
+const char getoptstring[] = "sw" getoptstring_COMMON;
+const struct option longopts[] = {
+ { "save", 0, NULL, 's' },
+ { "warn", 0, NULL, 'w' },
+ longopts_COMMON
+};
+const char * const longopts_help[] = {
+ "saves the time",
+ "no error if no reference file",
+ longopts_help_COMMON
+};
+const char *usagestring = NULL;
+
+int main(int argc, char **argv)
+{
+ int opt, sflag = 0, wflag = 0;
+ const char *file = RC_SHUTDOWNTIME;
+ struct stat sb;
+ struct timeval tv;
+
+ applet = basename_c(argv[0]);
+ while ((opt = getopt_long(argc, argv, getoptstring,
+ longopts, (int *) 0)) != -1)
+ {
+ switch (opt) {
+ case 's':
+ sflag = 1;
+ break;
+ case 'w':
+ wflag = 1;
+ break;
+ case_RC_COMMON_GETOPT
+ }
+ }
+
+ if (optind < argc)
+ file = argv[optind++];
+
+ if (sflag) {
+ if (stat(file, &sb) == -1) {
+ opt = open(file, O_WRONLY | O_CREAT, 0644);
+ if (opt == -1)
+ eerrorx("swclock: open: %s", strerror(errno));
+ close(opt);
+ } else
+ if (utime(file, NULL) == -1)
+ eerrorx("swclock: utime: %s", strerror(errno));
+ return 0;
+ }
+
+ if (stat(file, &sb) == -1) {
+ if (wflag != 0 && errno == ENOENT)
+ ewarn("swclock: `%s': %s", file, strerror(errno));
+ else
+ eerrorx("swclock: `%s': %s", file, strerror(errno));
+ return 0;
+ }
+
+ tv.tv_sec = sb.st_mtime;
+ tv.tv_usec = 0;
+
+ if (settimeofday(&tv, NULL) == -1)
+ eerrorx("swclock: settimeofday: %s", strerror(errno));
+
+ return 0;
+}