bus: parse uid/gid/pid/tid meta data from kdbus messages

[elogind.git] / src / nspawn / nspawn.c

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 1a3e41f4037ae205923110cbf7193b70f0e24e81..b90ccc53ef51fae8d4ffaf29cb7ce6463761a789 100644 (file)
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -528,7 +528,7 @@ static int setup_boot_id(const char *dest) {
                  SD_ID128_FORMAT_VAL(rnd));
         char_array_0(as_uuid);
 
-        r = write_one_line_file(from, as_uuid);
+        r = write_string_file(from, as_uuid);
         if (r < 0) {
                 log_error("Failed to write boot id: %s", strerror(-r));
                 return r;
@@ -537,8 +537,8 @@ static int setup_boot_id(const char *dest) {
         if (mount(from, to, "bind", MS_BIND, NULL) < 0) {
                 log_error("Failed to bind mount boot id: %m");
                 r = -errno;
-        } else
-                mount(from, to, "bind", MS_BIND|MS_REMOUNT|MS_RDONLY, NULL);
+        } else if (mount(from, to, "bind", MS_BIND|MS_REMOUNT|MS_RDONLY, NULL))
+                log_warning("Failed to make boot id read-only: %m");
 
         unlink(from);
         return r;
@@ -674,8 +674,11 @@ static int setup_kmsg(const char *dest, int kmsg_socket) {
         union {
                 struct cmsghdr cmsghdr;
                 uint8_t buf[CMSG_SPACE(sizeof(int))];
-        } control;
-        struct msghdr mh;
+        } control = {};
+        struct msghdr mh = {
+                .msg_control = &control,
+                .msg_controllen = sizeof(control),
+        };
         struct cmsghdr *cmsg;
 
         assert(dest);
@@ -716,12 +719,6 @@ static int setup_kmsg(const char *dest, int kmsg_socket) {
                 return -errno;
         }
 
-        zero(mh);
-        zero(control);
-
-        mh.msg_control = &control;
-        mh.msg_controllen = sizeof(control);
-
         cmsg = CMSG_FIRSTHDR(&mh);
         cmsg->cmsg_level = SOL_SOCKET;
         cmsg->cmsg_type = SCM_RIGHTS;
@@ -1589,7 +1586,7 @@ int main(int argc, char *argv[]) {
                         _exit(EXIT_FAILURE);
                 }
 
-                log_info("Init process in the container running as PID %d", pid);
+                log_info("Init process in the container running as PID %lu.", (unsigned long) pid);
                 close_nointr_nofail(pipefd[0]);
                 close_nointr_nofail(pipefd[1]);