Add a couple of helper functions, and flush imsgs on exit.

1 files changed, 9 insertions, 22 deletions

diff --git a/usr.bin/tmux/server.c b/usr.bin/tmux/server.c
index 2890d8357f2..ccbdddcdfc8 100644
--- a/usr.bin/tmux/server.c
+++ b/usr.bin/tmux/server.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: server.c,v 1.195 2020/09/16 18:37:55 nicm Exp $ */
+/* $OpenBSD: server.c,v 1.196 2021/02/11 09:39:29 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -156,35 +156,22 @@ int
 server_start(struct tmuxproc *client, int flags, struct event_base *base,
     int lockfd, char *lockfile)
 {
-	int		 pair[2];
-	sigset_t	 set, oldset;
-	struct client	*c = NULL;
-	char		*cause = NULL;
+	int		  fd;
+	sigset_t	  set, oldset;
+	struct client	 *c = NULL;
+	char		 *cause = NULL;
 
 	sigfillset(&set);
 	sigprocmask(SIG_BLOCK, &set, &oldset);
 
 	if (~flags & CLIENT_NOFORK) {
-		if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pair) != 0)
-			fatal("socketpair failed");
-
-		switch (fork()) {
-		case -1:
-			fatal("fork failed");
-		case 0:
-			break;
-		default:
+		if (proc_fork_and_daemon(&fd) != 0) {
 			sigprocmask(SIG_SETMASK, &oldset, NULL);
-			close(pair[1]);
-			return (pair[0]);
+			return (fd);
 		}
-		close(pair[0]);
-		if (daemon(1, 0) != 0)
-			fatal("daemon failed");
 	}
-
-	server_client_flags = flags;
 	proc_clear_signals(client, 0);
+	server_client_flags = flags;
 
 	if (event_reinit(base) != 0)
 		fatalx("event_reinit failed");
@@ -213,7 +200,7 @@ server_start(struct tmuxproc *client, int flags, struct event_base *base,
 	if (server_fd != -1)
 		server_update_socket();
 	if (~flags & CLIENT_NOFORK)
-		c = server_client_create(pair[1]);
+		c = server_client_create(fd);
 	else
 		options_set_number(global_options, "exit-empty", 0);