===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/proc.c,v
retrieving revision 1.20
retrieving revision 1.21
diff -c -r1.20 -r1.21
*** src/usr.bin/tmux/proc.c	2021/02/11 09:39:29	1.20
--- src/usr.bin/tmux/proc.c	2022/03/08 11:28:40	1.21
***************
*** 1,4 ****
! /* $OpenBSD: proc.c,v 1.20 2021/02/11 09:39:29 nicm Exp $ */
  
  /*
   * Copyright (c) 2015 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: proc.c,v 1.21 2022/03/08 11:28:40 nicm Exp $ */
  
  /*
   * Copyright (c) 2015 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 55,60 ****
--- 55,61 ----
  
  	struct imsgbuf	 ibuf;
  	struct event	 event;
+ 	uid_t		 uid;
  
  	int		 flags;
  #define PEER_BAD 0x1
***************
*** 296,301 ****
--- 297,303 ----
      void (*dispatchcb)(struct imsg *, void *), void *arg)
  {
  	struct tmuxpeer	*peer;
+ 	gid_t		 gid;
  
  	peer = xcalloc(1, sizeof *peer);
  	peer->parent = tp;
***************
*** 306,311 ****
--- 308,316 ----
  	imsg_init(&peer->ibuf, fd);
  	event_set(&peer->event, fd, EV_READ, proc_event_cb, peer);
  
+ 	if (getpeereid(fd, &peer->uid, &gid) != 0)
+ 		peer->uid = (uid_t)-1;
+ 
  	log_debug("add peer %p: %d (%p)", peer, fd, arg);
  	TAILQ_INSERT_TAIL(&tp->peers, peer, entry);
  
***************
*** 360,363 ****
--- 365,374 ----
  		*fd = pair[0];
  		return (pid);
  	}
+ }
+ 
+ uid_t
+ proc_get_peer_uid(struct tmuxpeer *peer)
+ {
+ 	return (peer->uid);
  }