Cleanup file descriptors and add info

su.c

@@ -35,7 +35,7 @@ static void usage(int status) {
 	FILE *stream = (status == EXIT_SUCCESS) ? stdout : stderr;
 
 	fprintf(stream,
-	"MagiskSU v" xstr(MAGISK_VERSION) "\n\n"
+	"MagiskSU v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ")\n\n"
 	"Usage: su [options] [--] [-] [LOGIN] [--] [args...]\n\n"
 	"Options:\n"
 	"  -c, --command COMMAND         pass COMMAND to the invoked shell\n"
@@ -50,7 +50,7 @@ static void usage(int status) {
 	"                                this is used almost exclusively by Superuser.apk\n"
 	"  -mm, -M,\n"
 	"  --mount-master                run in the global mount namespace,\n"
-	"                                use if you need to publicly apply mounts");
+	"                                use if you need to publicly apply mounts\n");
 	exit2(status);
 }
 

su_socket.c

@@ -22,7 +22,7 @@ int socket_create_temp(char *path, size_t len) {
     int fd;
     struct sockaddr_un sun;
 
-    fd = xsocket(AF_LOCAL, SOCK_STREAM, 0);
+    fd = xsocket(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0);
     if (fcntl(fd, F_SETFD, FD_CLOEXEC)) {
         PLOGE("fcntl FD_CLOEXEC");
     }
@@ -65,7 +65,7 @@ int socket_accept(int serv_fd) {
         PLOGE("select");
     }
 
-    return xaccept(serv_fd, NULL, NULL);
+    return xaccept4(serv_fd, NULL, NULL, SOCK_CLOEXEC);
 }
 
 #define write_data(fd, data, data_len)              \