#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
-#ifdef __BIONIC__
-# include <linux/fcntl.h>
-#else
-# include <sys/fcntl.h>
-#endif
+#include <fcntl.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <errno.h>
#include <stddef.h>
#include <limits.h>
-#if defined(__linux__)
+#if defined(__linux__) && !defined(SD_DAEMON_DISABLE_MQ)
# include <mqueue.h>
#endif
errno = 0;
l = strtoul(e, &p, 10);
- if (errno != 0) {
+ if (errno > 0) {
r = -errno;
goto finish;
}
errno = 0;
l = strtoul(e, &p, 10);
- if (errno != 0) {
+ if (errno > 0) {
r = -errno;
goto finish;
}
return r;
if (family > 0) {
- union sockaddr_union sockaddr;
- socklen_t l;
-
- memset(&sockaddr, 0, sizeof(sockaddr));
- l = sizeof(sockaddr);
+ union sockaddr_union sockaddr = {};
+ socklen_t l = sizeof(sockaddr);
if (getsockname(fd, &sockaddr.sa, &l) < 0)
return -errno;
}
_sd_export_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) {
- union sockaddr_union sockaddr;
- socklen_t l;
+ union sockaddr_union sockaddr = {};
+ socklen_t l = sizeof(sockaddr);
int r;
if (family != 0 && family != AF_INET && family != AF_INET6)
if (r <= 0)
return r;
- memset(&sockaddr, 0, sizeof(sockaddr));
- l = sizeof(sockaddr);
-
if (getsockname(fd, &sockaddr.sa, &l) < 0)
return -errno;
}
_sd_export_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) {
- union sockaddr_union sockaddr;
- socklen_t l;
+ union sockaddr_union sockaddr = {};
+ socklen_t l = sizeof(sockaddr);
int r;
r = sd_is_socket_internal(fd, type, listening);
if (r <= 0)
return r;
- memset(&sockaddr, 0, sizeof(sockaddr));
- l = sizeof(sockaddr);
-
if (getsockname(fd, &sockaddr.sa, &l) < 0)
return -errno;
}
_sd_export_ int sd_is_mq(int fd, const char *path) {
-#if !defined(__linux__)
+#if !defined(__linux__) || defined(SD_DAEMON_DISABLE_MQ)
return 0;
#else
struct mq_attr attr;
#if defined(DISABLE_SYSTEMD) || !defined(__linux__)
return 0;
#else
+ struct stat st;
- struct stat a, b;
+ /* We test whether the runtime unit file directory has been
+ * created. This takes place in mount-setup.c, so is
+ * guaranteed to happen very early during boot. */
- /* We simply test whether the systemd cgroup hierarchy is
- * mounted */
-
- if (lstat("/sys/fs/cgroup", &a) < 0)
+ if (lstat("/run/systemd/system/", &st) < 0)
return 0;
- if (lstat("/sys/fs/cgroup/systemd", &b) < 0)
- return 0;
+ return !!S_ISDIR(st.st_mode);
+#endif
+}
- return a.st_dev != b.st_dev;
+_sd_export_ int sd_watchdog_enabled(int unset_environment, uint64_t *usec) {
+
+#if defined(DISABLE_SYSTEMD) || !defined(__linux__)
+ return 0;
+#else
+ unsigned long long ll;
+ unsigned long l;
+ const char *e;
+ char *p = NULL;
+ int r;
+
+ e = getenv("WATCHDOG_PID");
+ if (!e) {
+ r = 0;
+ goto finish;
+ }
+
+ errno = 0;
+ l = strtoul(e, &p, 10);
+ if (errno > 0) {
+ r = -errno;
+ goto finish;
+ }
+ if (!p || p == e || *p || l <= 0) {
+ r = -EINVAL;
+ goto finish;
+ }
+
+ /* Is this for us? */
+ if (getpid() != (pid_t) l) {
+ r = 0;
+ goto finish;
+ }
+
+ e = getenv("WATCHDOG_USEC");
+ if (!e) {
+ r = -EINVAL;
+ goto finish;
+ }
+
+ errno = 0;
+ ll = strtoull(e, &p, 10);
+ if (errno > 0) {
+ r = -errno;
+ goto finish;
+ }
+ if (!p || p == e || *p || l <= 0) {
+ r = -EINVAL;
+ goto finish;
+ }
+
+ if (usec)
+ *usec = ll;
+
+ r = 1;
+
+finish:
+ if (unset_environment) {
+ unsetenv("WATCHDOG_PID");
+ unsetenv("WATCHDOG_USEC");
+ }
+
+ return r;
#endif
}