Define away pledge() on !OpenBSD.

client.c

@@ -289,7 +289,6 @@ client_main(struct event_base *base, int argc, char **argv, int flags,
 	if ((ttynam = ttyname(STDIN_FILENO)) == NULL)
 		ttynam = "";
 
-#ifdef __OpenBSD__
 	/*
 	 * Drop privileges for client. "proc exec" is needed for -c and for
 	 * locking (which uses system(3)).
@@ -301,7 +300,6 @@ client_main(struct event_base *base, int argc, char **argv, int flags,
 	 */
 	if (pledge("stdio unix sendfd proc exec tty", NULL) != 0)
 		fatal("pledge failed");
-#endif
 
 	/* Free stuff that is not used in the client. */
 	if (ptm_fd != -1)
@@ -563,7 +561,6 @@ client_dispatch_wait(struct imsg *imsg, const char *shellcmd)
 	struct msg_stdout_data	 stdoutdata;
 	struct msg_stderr_data	 stderrdata;
 	int			 retval;
-#ifdef __OpenBSD__
 	static int		 pledge_applied;
 
 	/*
@@ -577,7 +574,6 @@ client_dispatch_wait(struct imsg *imsg, const char *shellcmd)
 			fatal("pledge failed");
 		pledge_applied = 1;
 	};
-#endif
 
 	data = imsg->data;
 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;

compat.h

@@ -58,6 +58,10 @@ typedef uint64_t u_int64_t;
 #define _PATH_DEV	"/dev/"
 #endif
 
+#ifndef __OpenBSD__
+#define pledge(s, p) (0)
+#endif
+
 #ifdef HAVE_QUEUE_H
 #include <sys/queue.h>
 #else

server.c

@@ -148,11 +148,9 @@ server_start(struct event_base *base, int lockfd, char *lockfile)
 	if (log_get_level() > 3)
 		tty_create_log();
 
-#ifdef __OpenBSD__
 	if (pledge("stdio rpath wpath cpath fattr unix getpw recvfd proc exec "
 	    "tty ps", NULL) != 0)
 		fatal("pledge failed");
-#endif
 
 	RB_INIT(&windows);
 	RB_INIT(&all_window_panes);

tmux.c

@@ -261,13 +261,11 @@ main(int argc, char **argv)
 	if (shellcmd != NULL && argc != 0)
 		usage();
 
-#ifdef __OpenBSD__
 	if (pty_open(&ptm_fd) != 0)
 		errx(1, "open(\"/dev/ptm\"");
 	if (pledge("stdio rpath wpath cpath flock fattr unix getpw sendfd "
 	    "recvfd proc exec tty ps", NULL) != 0)
 		err(1, "pledge");
-#endif
 
 	/*
 	 * tmux is a UTF-8 terminal, so if TMUX is set, assume UTF-8.