src/shared/specifier.c \
src/shared/specifier.h \
src/shared/spawn-polkit-agent.c \
- src/shared/spawn-polkit-agent.h
+ src/shared/spawn-polkit-agent.h \
+ src/shared/hwclock.c \
+ src/shared/hwclock.h
#-------------------------------------------------------------------------------
noinst_LTLIBRARIES += \
#include "dbus-common.h"
#include "install.h"
#include "watchdog.h"
+#include "hwclock.h"
#define BUS_MANAGER_INTERFACE_BEGIN \
" <interface name=\"org.freedesktop.systemd1.Manager\">\n"
#include "hostname-setup.h"
#include "machine-id-setup.h"
#include "locale-setup.h"
+#include "hwclock.h"
#include "selinux-setup.h"
#include "ima-setup.h"
--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2012 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 <assert.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <sys/prctl.h>
+#include <sys/time.h>
+#include <linux/rtc.h>
+
+#include "macro.h"
+#include "util.h"
+#include "log.h"
+#include "strv.h"
+#include "hwclock.h"
+
+static int rtc_open(int flags) {
+ int fd;
+ DIR *d;
+
+ /* First, we try to make use of the /dev/rtc symlink. If that
+ * doesn't exist, we open the first RTC which has hctosys=1
+ * set. If we don't find any we just take the first RTC that
+ * exists at all. */
+
+ fd = open("/dev/rtc", flags);
+ if (fd >= 0)
+ return fd;
+
+ d = opendir("/sys/class/rtc");
+ if (!d)
+ goto fallback;
+
+ for (;;) {
+ char *p, *v;
+ struct dirent buf, *de;
+ int r;
+
+ r = readdir_r(d, &buf, &de);
+ if (r != 0)
+ goto fallback;
+
+ if (!de)
+ goto fallback;
+
+ if (ignore_file(de->d_name))
+ continue;
+
+ p = join("/sys/class/rtc/", de->d_name, "/hctosys", NULL);
+ if (!p) {
+ closedir(d);
+ return -ENOMEM;
+ }
+
+ r = read_one_line_file(p, &v);
+ free(p);
+
+ if (r < 0)
+ continue;
+
+ r = parse_boolean(v);
+ free(v);
+
+ if (r <= 0)
+ continue;
+
+ p = strappend("/dev/", de->d_name);
+ fd = open(p, flags);
+ free(p);
+
+ if (fd >= 0) {
+ closedir(d);
+ return fd;
+ }
+ }
+
+fallback:
+ if (d)
+ closedir(d);
+
+ fd = open("/dev/rtc0", flags);
+ if (fd < 0)
+ return -errno;
+
+ return fd;
+}
+
+int hwclock_get_time(struct tm *tm) {
+ int fd;
+ int err = 0;
+
+ assert(tm);
+
+ fd = rtc_open(O_RDONLY|O_CLOEXEC);
+ if (fd < 0)
+ return -errno;
+
+ /* This leaves the timezone fields of struct tm
+ * uninitialized! */
+ if (ioctl(fd, RTC_RD_TIME, tm) < 0)
+ err = -errno;
+
+ /* We don't know daylight saving, so we reset this in order not
+ * to confused mktime(). */
+ tm->tm_isdst = -1;
+
+ close_nointr_nofail(fd);
+
+ return err;
+}
+
+int hwclock_set_time(const struct tm *tm) {
+ int fd;
+ int err = 0;
+
+ assert(tm);
+
+ fd = rtc_open(O_RDONLY|O_CLOEXEC);
+ if (fd < 0)
+ return -errno;
+
+ if (ioctl(fd, RTC_SET_TIME, tm) < 0)
+ err = -errno;
+
+ close_nointr_nofail(fd);
+
+ return err;
+}
+int hwclock_is_localtime(void) {
+ FILE *f;
+ bool local = false;
+
+ /*
+ * The third line of adjtime is "UTC" or "LOCAL" or nothing.
+ * # /etc/adjtime
+ * 0.0 0 0
+ * 0
+ * UTC
+ */
+ f = fopen("/etc/adjtime", "re");
+ if (f) {
+ char line[LINE_MAX];
+ bool b;
+
+ b = fgets(line, sizeof(line), f) &&
+ fgets(line, sizeof(line), f) &&
+ fgets(line, sizeof(line), f);
+
+ fclose(f);
+
+ if (!b)
+ return -EIO;
+
+ truncate_nl(line);
+ local = streq(line, "LOCAL");
+
+ } else if (errno != -ENOENT)
+ return -errno;
+
+ return local;
+}
+
+int hwclock_apply_localtime_delta(int *min) {
+ const struct timeval *tv_null = NULL;
+ struct timespec ts;
+ struct tm *tm;
+ int minuteswest;
+ struct timezone tz;
+
+ assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
+ assert_se(tm = localtime(&ts.tv_sec));
+ minuteswest = tm->tm_gmtoff / 60;
+
+ tz.tz_minuteswest = -minuteswest;
+ tz.tz_dsttime = 0; /* DST_NONE*/
+
+ /*
+ * If the hardware clock does not run in UTC, but in local time:
+ * The very first time we set the kernel's timezone, it will warp
+ * the clock so that it runs in UTC instead of local time.
+ */
+ if (settimeofday(tv_null, &tz) < 0)
+ return -errno;
+ if (min)
+ *min = minuteswest;
+ return 0;
+}
+
+int hwclock_reset_localtime_delta(void) {
+ const struct timeval *tv_null = NULL;
+ struct timezone tz;
+
+ tz.tz_minuteswest = 0;
+ tz.tz_dsttime = 0; /* DST_NONE*/
+
+ if (settimeofday(tv_null, &tz) < 0)
+ return -errno;
+
+ return 0;
+}
--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foohwclockhfoo
+#define foohwclockhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2012 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/>.
+***/
+
+int hwclock_is_localtime(void);
+int hwclock_apply_localtime_delta(int *min);
+int hwclock_reset_localtime_delta(void);
+int hwclock_get_time(struct tm *tm);
+int hwclock_set_time(const struct tm *tm);
+
+#endif
#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
+/*
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr: the pointer to the member.
+ * @type: the type of the container struct this is embedded in.
+ * @member: the name of the member within the struct.
+ *
+ */
+#define container_of(ptr, type, member) ({ \
+ const typeof( ((type *)0)->member ) *__mptr = (ptr); \
+ (type *)( (char *)__mptr - offsetof(type,member) );})
+
#ifndef MAX
#define MAX(a,b) \
__extension__ ({ \
#include <sys/wait.h>
#include <sys/capability.h>
#include <sys/time.h>
-#include <linux/rtc.h>
#include <glob.h>
#include <grp.h>
#include <sys/mman.h>
return 0;
}
-int hwclock_is_localtime(void) {
- FILE *f;
- bool local = false;
-
- /*
- * The third line of adjtime is "UTC" or "LOCAL" or nothing.
- * # /etc/adjtime
- * 0.0 0 0
- * 0
- * UTC
- */
- f = fopen("/etc/adjtime", "re");
- if (f) {
- char line[LINE_MAX];
- bool b;
-
- b = fgets(line, sizeof(line), f) &&
- fgets(line, sizeof(line), f) &&
- fgets(line, sizeof(line), f);
-
- fclose(f);
-
- if (!b)
- return -EIO;
-
- truncate_nl(line);
- local = streq(line, "LOCAL");
-
- } else if (errno != -ENOENT)
- return -errno;
-
- return local;
-}
-
-int hwclock_apply_localtime_delta(int *min) {
- const struct timeval *tv_null = NULL;
- struct timespec ts;
- struct tm *tm;
- int minuteswest;
- struct timezone tz;
-
- assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
- assert_se(tm = localtime(&ts.tv_sec));
- minuteswest = tm->tm_gmtoff / 60;
-
- tz.tz_minuteswest = -minuteswest;
- tz.tz_dsttime = 0; /* DST_NONE*/
-
- /*
- * If the hardware clock does not run in UTC, but in local time:
- * The very first time we set the kernel's timezone, it will warp
- * the clock so that it runs in UTC instead of local time.
- */
- if (settimeofday(tv_null, &tz) < 0)
- return -errno;
- if (min)
- *min = minuteswest;
- return 0;
-}
-
-int hwclock_reset_localtime_delta(void) {
- const struct timeval *tv_null = NULL;
- struct timezone tz;
-
- tz.tz_minuteswest = 0;
- tz.tz_dsttime = 0; /* DST_NONE*/
-
- if (settimeofday(tv_null, &tz) < 0)
- return -errno;
-
- return 0;
-}
-
-int rtc_open(int flags) {
- int fd;
- DIR *d;
-
- /* First, we try to make use of the /dev/rtc symlink. If that
- * doesn't exist, we open the first RTC which has hctosys=1
- * set. If we don't find any we just take the first RTC that
- * exists at all. */
-
- fd = open("/dev/rtc", flags);
- if (fd >= 0)
- return fd;
-
- d = opendir("/sys/class/rtc");
- if (!d)
- goto fallback;
-
- for (;;) {
- char *p, *v;
- struct dirent buf, *de;
- int r;
-
- r = readdir_r(d, &buf, &de);
- if (r != 0)
- goto fallback;
-
- if (!de)
- goto fallback;
-
- if (ignore_file(de->d_name))
- continue;
-
- p = join("/sys/class/rtc/", de->d_name, "/hctosys", NULL);
- if (!p) {
- closedir(d);
- return -ENOMEM;
- }
-
- r = read_one_line_file(p, &v);
- free(p);
-
- if (r < 0)
- continue;
-
- r = parse_boolean(v);
- free(v);
-
- if (r <= 0)
- continue;
-
- p = strappend("/dev/", de->d_name);
- fd = open(p, flags);
- free(p);
-
- if (fd >= 0) {
- closedir(d);
- return fd;
- }
- }
-
-fallback:
- if (d)
- closedir(d);
-
- fd = open("/dev/rtc0", flags);
- if (fd < 0)
- return -errno;
-
- return fd;
-}
-
-int hwclock_get_time(struct tm *tm) {
- int fd;
- int err = 0;
-
- assert(tm);
-
- fd = rtc_open(O_RDONLY|O_CLOEXEC);
- if (fd < 0)
- return -errno;
-
- /* This leaves the timezone fields of struct tm
- * uninitialized! */
- if (ioctl(fd, RTC_RD_TIME, tm) < 0)
- err = -errno;
-
- /* We don't know daylight saving, so we reset this in order not
- * to confused mktime(). */
- tm->tm_isdst = -1;
-
- close_nointr_nofail(fd);
-
- return err;
-}
-
-int hwclock_set_time(const struct tm *tm) {
- int fd;
- int err = 0;
-
- assert(tm);
-
- fd = rtc_open(O_RDONLY|O_CLOEXEC);
- if (fd < 0)
- return -errno;
-
- if (ioctl(fd, RTC_SET_TIME, tm) < 0)
- err = -errno;
-
- close_nointr_nofail(fd);
-
- return err;
-}
-
int copy_file(const char *from, const char *to) {
int r, fdf, fdt;
#define USEC_PER_MONTH (2629800ULL*USEC_PER_SEC)
#define USEC_PER_YEAR (31557600ULL*USEC_PER_SEC)
-/*
- * container_of - cast a member of a structure out to the containing structure
- * @ptr: the pointer to the member.
- * @type: the type of the container struct this is embedded in.
- * @member: the name of the member within the struct.
- *
- */
-#define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
-
/* What is interpreted as whitespace? */
#define WHITESPACE " \t\n\r"
#define NEWLINE "\n\r"
int fchmod_umask(int fd, mode_t mode);
-int hwclock_is_localtime(void);
-int hwclock_apply_localtime_delta(int *min);
-int hwclock_reset_localtime_delta(void);
-int hwclock_get_time(struct tm *tm);
-int hwclock_set_time(const struct tm *tm);
-
bool display_is_local(const char *display);
int socket_from_display(const char *display, char **path);
void* memdup(const void *p, size_t l);
-int rtc_open(int flags);
-
int is_kernel_thread(pid_t pid);
int fd_inc_sndbuf(int fd, size_t n);
#include "dbus-common.h"
#include "polkit.h"
#include "def.h"
+#include "hwclock.h"
#define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n"
#define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n"
projects / systemd / commitdiff