activate: fix error checking on epoll_ctl()

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

diff --git a/src/activate/activate.c b/src/activate/activate.c
index 5263969fcf572c1e1829fc59da8f87c849443a89..cf545d61f79092c85de99551a6a0ea3c5a707b14 100644 (file)
--- a/src/activate/activate.c
+++ b/src/activate/activate.c
@@ -51,10 +51,12 @@ static int add_epoll(int epoll_fd, int fd) {
 
         ev.data.fd = fd;
         r = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd, &ev);
-        if (r < 0)
-                log_error("Failed to add event on epoll fd:%d for fd:%d: %m",
-                          epoll_fd, fd);
-        return -errno;
+        if (r < 0) {
+                log_error("Failed to add event on epoll fd:%d for fd:%d: %m", epoll_fd, fd);
+                return -errno;
+        }
+
+        return 0;
 }
 
 static int make_socket_fd(const char* address, int flags) {
@@ -99,6 +101,17 @@ static int open_sockets(int *epoll_fd, bool accept) {
                 }
         }
 
+        /* Close logging and all other descriptors */
+        if (arg_listen) {
+                int except[3 + n];
+
+                for (fd = 0; fd < SD_LISTEN_FDS_START + n; fd++)
+                        except[fd] = fd;
+
+                log_close();
+                close_all_fds(except, 3 + n);
+        }
+
         /** Note: we leak some fd's on error here. I doesn't matter
          *  much, since the program will exit immediately anyway, but
          *  would be a pain to fix.
@@ -108,6 +121,7 @@ static int open_sockets(int *epoll_fd, bool accept) {
 
                 fd = make_socket_fd(*address, SOCK_STREAM | (arg_accept*SOCK_CLOEXEC));
                 if (fd < 0) {
+                        log_open();
                         log_error("Failed to open '%s': %s", *address, strerror(-fd));
                         return fd;
                 }
@@ -116,6 +130,9 @@ static int open_sockets(int *epoll_fd, bool accept) {
                 count ++;
         }
 
+        if (arg_listen)
+                log_open();
+
         *epoll_fd = epoll_create1(EPOLL_CLOEXEC);
         if (*epoll_fd < 0) {
                 log_error("Failed to create epoll object: %m");
@@ -270,10 +287,10 @@ static void sigchld_hdl(int sig, siginfo_t *t, void *data) {
 
 static int install_chld_handler(void) {
         int r;
-        struct sigaction act;
-        zero(act);
-        act.sa_flags = SA_SIGINFO;
-        act.sa_sigaction = sigchld_hdl;
+        struct sigaction act = {
+                .sa_flags = SA_SIGINFO,
+                .sa_sigaction = sigchld_hdl,
+        };
 
         r = sigaction(SIGCHLD, &act, 0);
         if (r < 0)